• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    BRAKING DEVICE FOR VEHICLES. The present invention relates to a locking device (1) for vehicles that locks or unlocks by engaging with or disengaging a rod-type part (P1) includes: a chassis (2) configured from a first element obtained by less partly from a first material, and having an insertion groove (2A) into which the rod-shaped part (P1) enters; and a second element (lock (30) or reinforcement plate (20)) for contacting the rod-shaped part (P1) and comprising a second material. The second material has a higher density and a higher elastic modulus than the first material. For example, the first material can be a resin and the second material can be a metal.
    公开号:BR112013032243B1
    申请号:R112013032243-8
    申请日:2012-06-11
    公开日:2021-02-09
    发明作者:Tatsuo Sayama；Yutaka Kizawa
    申请人:Ts Tech Co., Ltd.；
    IPC主号:
    专利说明:

    Technical Field
    [0001] The present invention relates to a locking device, in particular a locking device for use in attaching a vehicle component. Background of the Technique
    [0002] In general, a seat rotatably provided on a vehicle body includes a locking device on its extension or other part, and the seat is attached to the vehicle body by engaging the locking device with a precursor attached to the body vehicle. Such a locking device is configured, as described in patent literature 1, for example, so that the rotating parts such as a lock and a sprocket are supported on a base plate. Generally, the base plate, lock and sprocket used for the vehicle locking device are made of steel material. Citation List Patent Literature Patent Literature 1: Japanese Patent No. 4318213 Summary of the Invention Technical Problem
    [0003] However, if the lock, the sprocket and the casing for receiving them are made of the same material, that is, steel material, the locking device would be very heavy.
    [0004] On the other hand, reducing the weight of the locking device will result in insufficient durability or insufficient stiffness of each of the constituent parts.
    [0005] Additionally, there is also a problem that the metallic sound occurs when the lock and the sprocket that are made of steel come into contact with the wrapper made of steel. This metallic sound occurs not only by the operation of the locking device, but also by the vibration of the vehicle's body, and in some places where the locking device is provided so that a metallic sound may not be preferable.
    [0006] Additionally, in order to assemble the locking device, it is preferable to improve productivity. For this purpose, reducing the number of constituent parts of the locking device and simplifying the mounting of the locking device are desirable.
    [0007] In view of the fundamentals described above, the present invention seeks to provide a locking device for vehicles, of which the weight can be reduced.
    [0008] The present invention also seeks to provide a locking device, which can guarantee durability and rigidity even if the weight is reduced.
    [0009] Additionally, the present invention seeks to provide a locking device for vehicles, in which metal-to-metal contact is reduced to provide a preferable operational feel.
    [00010] The present invention further seeks to improve the productivity of the vehicle locking device. Solution to the Problem
    [00011] In accordance with the present invention which solves the above problem, a vehicle locking device capable of engaging with and disengaging from a rod-like part is provided for locking and unlocking the locking device, the locking device comprising: a wrapper at least partially formed by a first element made of a first material and having an insertion groove to allow the stem-like part to be inserted into it; and a second element made of a second material and configured to contact the rod-like part, where the second material has a greater specific gravity and a greater modulus of elasticity than the first material.
    [00012] With this configuration of the locking device for vehicles, since at least part of the wrapper is formed by the first material having a lower density and less modulus of elasticity than the second element configured to contact the rod-type part , the weight of the locking device can be reduced compared to the configuration in which the wrap is made of the second element only.
    [00013] Preferably, the locking device described above for vehicles comprises a lock received in and rotatably supported by the wrapper and having a hook-like part engageable with the rod-like part, and the second element is the hook-like part of the lock.
    [00014] With this configuration of the locking device for vehicles, since the wrap is made of a material (for example, resin) having a lower density and a modulus of elasticity less than the steel material constituting the hook-like element of the latch, metal-to-metal contact can be reduced and a preferable operational feel can be obtained.
    [00015] In the locking device described above for vehicles, it is preferable that the first material is resin and the first element forms a resinous wrap, and the second element forms a reinforcement plate configured to reinforce the resinous wrap.
    [00016] With this configuration of the device and locking for vehicles, since the resinous wrap is reinforced by the reinforcement plate having a higher density and a greater elasticity module, the weight of the locking device for vehicles can be reduced while guaranteeing the durability and rigidity of the wrap.
    [00017] In the locking device described above for vehicles, it is preferable that the first material is resin and the first element forms a resinous wrap, and the second material is metal.
    [00018] With this configuration of the vehicle locking device, since the wrap to support the lock containing a metallic part is made of resin, and the contact with the inner part of the wrap and lateral surfaces of the lock (end faces located in both ends of the geometric axis of rotation) does not involve metal-to-metal contact, it is possible to eliminate the metallic sound and obtain a smooth operating sensation.
    [00019] Preferably, the locking device described above for vehicles further comprises a lock received in and rotatably supported by the wrap and having a hook-like part engageable with the rod-like part, and the wrap comprises the first element and the second element , and the insertion groove is formed in the second element.
    [00020] With this configuration of the locking device for vehicles, since the wrapper comprises the first element made of the first material and the second element made of the second material having a higher density and a greater modulus of elasticity than the first material, the weight of the locking device can be reduced compared to the configuration in which the wrap is made of the second material only. Additionally, if the wrap is made of the first material only, the wrap's stiffness may be insufficient. However, the use of the second material can guarantee the rigidity of the wrap. In addition, since the insertion groove is formed by at least the second element, the durability of the insertion groove can be guaranteed.
    [00021] In the locking device described above for vehicles, it is preferable that the first element has a first axis formed integrally that protrudes into the envelope and is shaped like a circular tube, that lock has a first hole through which the lock it is fitted on the first axis, and the lock is rotatably supported by the first element by a coupling of the first axis and the first hole, and the locking device additionally comprises a first fixing element configured to penetrate through an internal region of a tube of the first axis and attach the locking device to another device.
    [00022] With this configuration of the vehicle locking device, the first fastening element is inserted in the first circular tubular axis formed in the first element, with the result that the stiffness of the first axis can be improved.
    [00023] Preferably, the locking device described above for vehicles additionally comprises a gearwheel received in the wrapper and rotatably supported by the first element and configured to engage with the latch to maintain a closed state in which the latch engages with the type part. shank and an open state in which the lock is detachable from the shank-like part, and it is preferable that the first element has a second integrally formed shaft that protrudes into the casing and is shaped like a circular tube, that the sprocket has a second hole through which the sprocket is fitted to the second axle, and the sprocket is rotatably supported by the first element by a second axis and second hole engagement, and that the locking device additionally comprises a second configured fastening element to penetrate through an inner region of a second axis tube and attach the locking device to another device.
    [00024] With this configuration of the vehicle locking device, the second fastening element is inserted in the second circular tubular axis formed in the first element, which results in the stiffness of the second axis being improved.
    [00025] Preferably, the locking device described above for vehicles additionally comprises a gearwheel received in the wrapper and rotatably supported by the first element and configured to engage with the latch to maintain a closed state in which the latch engages with the part shank type and an open state in which the lock is detachable from the shank type part, and it is preferable that the first element has a second integrally formed axis that protrudes into the envelope and is shaped like a circular tube, that the sprocket has a second hole through which the sprocket is fitted on the second axle, and the sprocket is rotatably supported by the first element by a second axis engagement and the second hole, which the locking device additionally comprises the second configured fastening element to penetrate through an inner region of a second axis tube and attach the locking device to another device. vo, and that as viewed from a direction in which a load is applied from the rod-like part, a load receiving part configured to receive a load from the rod-like part is provided between the first fastening element and the second fastening element.
    [00026] With this configuration of the vehicle locking device, a force received by the load receiving part is supported in good balance by the first fastening element and the second fastening element, with the result of an unnecessary rotation impulse not occurring on the vehicle locking device.
    [00027] Preferably, the locking device described above for vehicles additionally comprises a resinous load receiving element having a load receiving part configured to receive a rod-type load, and it is preferable that the first element be made of resin. and has a coupling hole that can be coupled with the load receiving element, that the second element is made of laminated metal and has a support part configured to withstand a force applied from the rod-like part and received by the load receiving element and that the load receiving element is configured to retain the second element and has an engaging projection that can be coupled with the engagement hole of the first element.
    [00028] With this configuration of the vehicle locking device, the load receiving element is configured to retain the second element and engage with the second element to transmit a load to the support part of the second element. Additionally, the load receiving element is fixed by the coupling of the load receiving element's projection coupling and the coupling hole of the first element. With this configuration, it is not necessary to provide the engagement hole in the second element and, instead, the engagement hole is provided in the first resinous element, which can facilitate fabrication.
    [00029] Preferably, the locking device described above for vehicles additionally comprises a gearwheel received in the wrapper and rotatably supported by the first element and configured to engage with the latch to maintain a closed state in which the latch engages with the part shank type and an open state in which the lock is detachable from the shank part, and it is preferable that the first element has a second integrally formed shaft that protrudes into the envelope and is shaped like a circular tube, that the sprocket has a second hollow hole in which the sprocket is fitted on the second axle, and the sprocket is rotatably supported by the casing by a second axle and second bore engagement, which the locking device additionally comprises a second fastening element configured for penetrate through an internal region of a tube of the second axis and fix the locking device to another device, which the first element has holes to allow the first fixing element and the second fixing element to penetrate through them, and an edge of each hole being provided with a positioning projection extending outwards from the first element, and the second element has positioning holes embedded in the corresponding positioning projections.
    [00030] With this configuration of the vehicle locking device, the positioning projection is provided at the edge of the hole through which the first fastener passes and at the edge of the hole through which the second fastener passes, and this can provide a simple configuration compared to the configuration in which the corresponding positioning projections and holes are provided in other positions. In addition, positioning projections and positioning holes can be engaged with each other without fail.
    [00031] In the locking device described above for vehicles, it is preferable that the support part is provided in a recessed part of a contour of the second element.
    [00032] With this configuration of the vehicle locking device, the second element can be reduced in size and can have an efficient cut presentation for the second element.
    [00033] In the locking device described above for vehicles, it is preferable that the first element constitutes the casing wall located on one side in a direction of a geometric axis of rotation of the lock and the second element constitutes at least an external side of a the casing wall located on the other side, and the second element being located outside when the device and locking is fixed to the other device by a fixing element, and serves as a support surface for receiving a fixing force from the fixing element.
    [00034] With this configuration of the vehicle locking device, since the second element is located outside, the second element can directly receive a force necessary to secure the locking device and the second element can protect the first element against external impact .
    [00035] In the locking device described above for vehicles, it is preferable that the resinous wrap is formed as a box-like shape by assembling two elements together, and the two elements are molded together with a joint connecting the two elements.
    [00036] With this configuration of the vehicle locking device, if two elements constituting the resinous wrap are connected by an articulation and molded together, the two elements can be formed at the same time. This can reduce the cost, and excellent productivity can be achieved by instantly assembling the two elements in a box-like format without paying attention to the orientation of the two elements.
    [00037] In the locking device described above for vehicles, it is preferable that the resinous wrap has a first integrally formed axis that protrudes into the resinous wrap, that the lock has a first hole through which the lock is fitted on the first axis , and the lock is rotationally supported by the resinous casing by engaging the first shaft and the first hole.
    [00038] With this configuration of the locking device for vehicles, since the lock is supported in its first hole by the first axis of the resinous wrap, it is possible to further reduce the metallic sound and obtain a smoother operational sensation.
    [00039] Preferably, the locking device described above for vehicles additionally comprises a metal sprocket received in and rotatably supported by the resinous casing and configured to engage with the latch to maintain a closed state in which the latch engages with the part rod type and an open state in which the lock is detachable from the rod type part, and it is preferable that the wrap has a second integrally formed shaft that protrudes into the wrap, and the sprocket has a second hole through which the wheel gear is fitted to the second axle, and the gear wheel is rotatably supported by the casing by a second axle and second bore engagement.
    [00040] With this configuration of the vehicle locking device, since the sprocket is supported in its second hole by the second axis of the resinous wrap, it is possible to further reduce the metallic sound to obtain a smoother operational sensation.
    [00041] In the locking device described above for vehicles, it is preferable that the first axle is shaped like a circular tube, and that the locking device additionally comprises a first fastening element made of metal and configured to penetrate through an internal region of a tube on the first axis and attach the locking device to another device. As an alternative, it is preferable that the second axis is shaped like a circular tube, and that the locking device additionally comprises a second fastener made of metal and configured to penetrate through an inner region of a tube of the second axis and fix it the locking device to another device.
    [00042] In the configuration in which the lock and the sprocket are supported by shafts made of resin, if the resin shafts are shaped like a circular hollow tube, the stiffness of the shafts can be reduced. However, with the configuration of the locking device described above for vehicles, since the fastener penetrates through the internal region of the corresponding axle, the rigidity of the axle can be improved. In addition, since a part used for fixing the locking device also serves to reinforce the shaft, the number of constituent parts can be reduced compared to the configuration in which another reinforcement part is provided separately. In addition, since the shaft can be formed to have a thickness substantially equal to that of the envelope, molding can be performed with increased precision.
    [00043] In the locking device described above for vehicles, it is preferable that the resinous casing has a first rib provided around the first axis and projecting into the resinous casing.
    [00044] With this configuration of the vehicle locking device, since the contact area between the wrap and the lock or sprocket can be reduced by providing a first rib inside the wrap, a smoother operating sensation can be obtained.
    [00045] Preferably, the locking device described above for vehicles further comprises: a metal cogwheel received in and rotatably supported by the resinous casing and configured to engage with the latch to maintain a closed state in which the latch is engageable with the stem-type part and an open state in which the lock is detachable from the stem-type part; a lever element made of metal and rotatably supported by the lock and configured to engage with the gear wheel to transmit a gear movement to the lock; and a propulsion element configured to engage the lever element and with the sprocket and it is preferable that the resinous casing has a second integrally formed shaft that protrudes into the resinous casing, that the sprocket has a second hole through which the sprocket is fitted on the second shaft, and a flange provided around the second hole and projecting in an axial direction of the second hole, that the sprocket is rotatably supported by the resinous casing by a second shaft coupling and the second hole, and that the lever element is pushed by a pushing force from the driving element and contacts the flange when the lock is in the closed state.
    [00046] In the configuration in which the sprocket is supported by the shaft made of resin, if the lever element is brought into contact with the resinous shaft to prevent a loosening of the lever element, the resin shaft may wear out. However, with the configuration of the locking device described above for vehicles, since the flange is provided around the second hole of the sprocket in order to project in an axial direction of the hole, the lever element is brought into contact with this flange, even if the resin shaft is used, it is possible to prevent a loosening of the lever element in addition to preventing the wear of the resin. Brief Description of Drawings
    [00047] Figure 1 is a perspective view of a vehicle seat cushion frame provided with a vehicle locking device.
    [00048] Figure 2 is an exploded perspective view of the locking device.
    [00049] Figure 3 is a top view of a reinforcement plate and a lower wrap as seen from the inside.
    [00050] Figure 4 is a perspective view of a cargo receiving element.
    [00051] Figure 5 includes (a) an exploded perspective view of the locking device illustrating the reinforcement plate, lower wrap and the load receiving element and (b) a cross-sectional view of (a) taken along the line III-III of these parts as a whole.
    [00052] Figure 6 is a sectional view illustrating the locking device in a locked state.
    [00053] Figure 7 is a sectional view explaining a structure to support a latch to allow rotation of the latch.
    [00054] Figure 8 is a view explaining the operation of the locking device with a rod being pulled out to a certain point.
    [00055] Figure 9 is a view explaining the operation of the locking device with the rod being pulled out a lot.
    [00056] Figure 10 is a view explaining the operation of the locking device with the rod returned to its original position and a sprocket being in contact with the lock.
    [00057] Figure 11 is a view explaining the operation of the locking device in an unlocked state.
    [00058] Figure 12 is an exploded perspective view of the reinforcement plate, the lower envelope and the load receiving element according to a modified modality.
    [00059] Figure 13 is a perspective view illustrating a state in which the reinforcement plate and the lower envelope shown in figure 12 are assembled together.
    [00060] Figure 14 is a top view of the reinforcement plate and the bottom wrap as seen from the inside.
    [00061] Figure 15 is a top view of the top wrap as seen from the inside. Description of Modalities
    [00062] Hereinafter, a description will be provided of an embodiment of a vehicle locking device according to the present invention with reference to the drawings. As seen in figure 1, a locking device 1 for vehicles according to one embodiment is provided, for example, in a frame S of an automobile vehicle seat as an example of another device, especially in a side frame S1 constituting a seat back. As an example, a support S2 made by laminated metal work is welded to the side frame S1, and the locking device 1 is fixed by screws 90 to weld the nuts WN which are spun to the support S2. Screws 90 are an example of the first and second fasteners.
    [00063] The locking device 1 includes a wrapper 2 in which the mechanism elements such as a lock 30 are received. An insertion groove 2A that opens directly in figure 1 is formed in the casing 2, and the lock 30 enters a closed state or an open state by advancing or retracting a hook-like part of the lock 30 within or away from the groove of insertion 2A. While lock 30 is opened in an unlocked state, locking device 1 can lock a rod-like part of a precursor (see figure 6) attached to a vehicle body by moving and pressing the locking device 1 against the rod-like part . In addition, as described later, the locking device 1 can unlock the rod-like part by pulling out the rod 7 to operate the lock 30 from the closed state to the open state.
    [00064] As seen in figure 2, the locking device 1 basically includes a casing 2, a lock 30, a sprocket 40, lever element 50, a rod 70, and a load receiving element 80. In the description a following the configuration of the locking device 1, top, bottom, right, left, front and rear directions are referred to for convenience as illustrated by the arrows in figure 2; it is, however, understood that the locking device 1 can be used in any orientation.
    [00065] Wrap 2 includes a resin wrap 10 (first element) made of resin as an example of a first material, and a reinforcement plate 20 (second element) made by the laminated metal work of a steel plate as an example of a second material that has a higher density than the resin and also a higher elastic modulus and, therefore, more robust than the resin. In general, a vehicle locking device used by a vehicle is robust and is configured so that several components including a lock made of steel are supported on a base made of metal such as a steel plate; these parts are very heavy. In contrast, according to the locking device 1 in this embodiment, the use of resinous casing 10 can greatly reduce the weight of the locking device 2 while guaranteeing the rigidity and strength required by the partial supply of the reinforcement plate 20.
    [00066] The resinous wrap 10 includes a lower wrap 10A in the form of a tray having an open side and an upper wrap 10B in the form of a tray having an open side, which are formed together while being connected by a hinge 19 made as a thin-walled part. This resinous wrap 10 can be made by integral molding using a set of molds. The upper wrap 10B is rotatable around the hinge 19 with respect to the lower wrap 10A; the top wrap 10B and the bottom wrap 10A form a box-like shape when they are closed together by combining the open side of the top wrap 10B and the open side of the bottom wrap 10A.
    [00067] The bottom wrap 10A is shaped like a tray and includes a flat plate shaped base part 16A and the side wall parts 17A provided by the partial elevation on the outer edges of the base part 16A. An insertion groove 15A corresponding to the insertion groove 2A is formed on a lower edge of the base part 16A. In addition, the first and second circular tubular axes 11, 12 project inwardly from the base part 16A in positions on both the right and left sides of the insertion groove 15A and slightly upward away from the insertion groove 15A. The first axis 11 and the second axis 12 are integral with the base part 16A.
    [00068] The first axis 11 has a screw hole 11H extending in the axial direction of the first axis 11 and formed as a hollow opening having a circular cross section. The second axis 12 also has a screw hole 12H extending in the axial direction of the second axis 12 and formed as a hollow opening having a circular cross section. The screw holes 11H, 12H have a diameter substantially the same as that of a shaft 91 of a screw 90.
    [00069] In the base part 16A around the first axis 11, two first ribs 14P, 14Q are provided, each formatted as a circular arc coaxial with the first axis 11 and projecting into the resinous envelope 10 (see also the figure 3). The first ribs 14P, 14Q are provided in positions corresponding to a movable band of the lock 30. Supplied in the base part 16A around the second axis 12 there is a second rib 14R shaped as a circular arc coaxial with the second axis 12 and protruding into the resinous casing 10 (see also figure 3). The second rib 14R is provided in a position corresponding to a movable band of the sprocket 40.
    [00070] As noted, figure 5 (a), the positioning projections 11J, 12J are provided on an eternal side of the lower casing 10A at the edges of the screw holes 11H, 12H in order to position the reinforcement plate 20 with respect to to the top, bottom, right and left directions of the bottom wrap 10A. Additionally, a recess part 18 is formed at one edge of the bottom of the insertion groove 15A, which recess part 18 has a recess from the other outer surface since it is formed to have a thin wall, and a part of the upper end of the recess part 18 is provided with an engagement hole 18P which penetrates through the base part 16A.
    [00071] The upper wrap 10B has an internal structure substantially equal to and symmetrical with that of the lower wrap 10A around hinge 19, except that the upper wrap 10B does not have the first axis 11 and the second axis 12. As seen in figure 2 , the upper wrap 10B is shaped like a tray and includes a flat plate shaped base part 16B and side wall parts 17B provided by partial elevation on the outer edges of the base part 16B. An insertion groove 15B corresponding to insertion groove 2A is formed at an upper edge (lower edge after assembly) of the base part 16B. In addition, the screw holes 13P, 13Q are formed in the base part 16B corresponding to the screw holes 11H, 12H in positions on both the left and right sides of the insertion groove 15B and slightly downwards (upwards after assembly) for away from the insertion groove 15B.
    [00072] In the base part 16B around the screw holes 13P, two first ribs 14S, 14T are provided, each shaped as a circular arc coaxial with the screw hole 13P and projecting into the resinous casing 10; the first ribs 14S, 14T being arranged in symmetrical positions of the first ribs 14P, 14Q. In addition, in the base part 16B around the screw hole 13Q a second rib 14U is formatted as a circular arc coaxial with the screw hole 13Q and projecting into the resinous casing 10; the second rib 14U is arranged in a symmetrical position of the second rib 14R.
    [00073] As noted in figures 2 and 5 (a), the reinforcement plate 20 is configured to cover the upper part of the outer side of the lower casing 10A except for a part of the upper part of the lower casing 10A, and includes a part of flat plate-shaped base 21 and side wall parts 27 provided by partial inward elevation at the right and left ends of the outer edges of the base part 21. Although not shown in detail in the figures, the side wall parts 27 of the plate reinforcement 20 are interlockable with the side wall parts 17A of the lower casing 10A to temporarily assemble the reinforcement plate 20 and the lower casing 10A together.
    [00074] The base part 21 has positioning holes 22, 23 corresponding to the positioning projections described above 11J, 12J of the lower envelope 10A and dimensioned to be fitted in the positioning projections 11J, 12J. In addition, an insertion groove 25 corresponding to the insertion groove 2A is formed on a lower edge of the base part 21.
    [00075] As seen in figure 5 (a), a flange 28 is provided on the outside of the reinforcement plate 20; the upper edge of the reinforcement plate 20 is folded out to raise the flange 28. The flange 28 is placed in contact with the load receiving element 80 to withstand a force applied from the rod-like part P1 of the precursor P (see figure 6) and received by the load receiving element 80. As seen from the axial direction of the first axis 11, that is, when viewed from a direction towards the base part 21, the flange 28 is supplied in a bottom of the recess part 29 formed in an upper part of the contour of the reinforcement plate 20. Since the flange 28 is provided using the recess part 29 of the reinforcement plate 20, the size of the reinforcement plate 20 can be reduced and, in this way, an efficient cut presentation for the reinforcement plate 20 can be achieved.
    [00076] The lock 30 is configured to engage with and disengage from the rod-type part P1 of the precursor P to, in this way, lock and unlock the locking device 1. As noted in figure 2, the lock 30 is formed by molding a thick rolled metal; the lock 30 has a first hole 31 penetrating in the direction of the thickness, and is rotatably supported on the resinous casing 10 with the first hole 31 fitted on the first axis 11. To be more specific, the lock 30 includes a lock body 30A made of metal, and a cover 30B made of resin and configured to cover the lock body 30A on the front surface and a part of the side edge of the lock body 30A. The cover 30B is provided to improve the sliding property of the lock 30 with respect to the sprocket 40.
    [00077] The lock 30 has a groove 32 that can be joined with the rod-like part P1, and a part that forms the contour of the groove 32 is formed as a hook-like part 33. Additionally, in the posture of the lock 30 as illustrated in figure 6, a locking recess part 34 is provided on the upper right edge of the lock 30; the locking recess part 34 notches towards the first hole 31. An outer peripheral part adjacent to the left side of the locking recess part 34 serves as an open contact surface 35 with which the sprocket 40 is in contact while the latch 30 is open, in order to maintain the open state of latch 30. Open contact surface 35 is formed as a curved surface projecting outwardly and throughout its region where a locking engagement part 42A of the sprocket 40 to be described later comes into contact with the open contact surface 35, the direction directing from the surface of the outer periphery towards the center of the circle of curvature (see arrow in figure 6) is shifted to one side, which is straight in this mode , with respect to the geometric axis of rotation of the lock 30. For this reason, a force applied from the locking engagement part 42A and received by the lock 30 acts to rotate the lock 30 in a clockwise direction, that is, , into the open state.
    [00078] To support the lever element 50 while allowing its rotation, a pin 36 is pressed into the lock 30; pin 36 protrudes forward from lock 30.
    [00079] Gear wheel 40 is a plate-like element generally made of metal. The sprocket 40 has a second hole 41 penetrating in the direction of the thickness, and is rotatably supported on the resinous casing 10 with the second hole 41 fitted on the second axis 12 of the resinous casing 10. The geometric axis of rotation of the sprocket 40 is parallel to the geometric axis of rotation of the lock 30. The sprocket 40 includes a main body generally in the form of sector 42 provided on the upper left side of the second hole 41, and the lower left corner of the main body 42 contacts the lock 30 and serves as the locking engagement part 42A. When the lock 30 is in the closed state, the locking engagement part 42A is located in the locking recess part 34 to maintain the locking position of the lock 30. In contrast, when the lock 30 is in the open state, the engagement part locking device 42A is in contact with the open contact surface 35 to maintain the open state of the lock 30.
    [00080] Supplied on the upper side of the main body 42 is a narrow arm 43 extending further upward, and the distal end of the arm 43 is formed as a hook 44 that can be coupled with the right end of an extension spring 75 as a example of a driving element. Since one end of the extension spring 75 is engaged with the hook 44 which is provided by forming the distal end shape of the arm 43 in a hook-like shape, the number of constituent parts can be reduced compared to the configuration in which the end of the extension spring 75 is attached to the arm 43 using another part such as a rivet. Additionally, as seen in figure 2, the arm 43 has a hole 48 for connecting a stem 70 through a rivet 71 to allow the oscillating movement of the stem 70; the rod 70 is used to operate the locking device 1 from the locked state in the unlocked state.
    [00081] As seen in figure 6, a pin 45 is snapped into the main body 42 in a position slightly to the right from the locking engagement part 42A; pin 45 protrudes forward from the main body 42 of the sprocket 40. Additionally, as seen in figure 2, the sprocket 40 has a flange 47 surrounding the second hole 41 and projecting forward in the axial direction of the second hole 41. The flange 47 has a height corresponding to the thickness of the lever element 50; when the latch 30 is in the closed state, the lever element 50 is pulled by the pushing force of the extension spring 75 and comes in contact with the flange 47 to thereby eliminate a gap in the lever element 50.
    [00082] The lever element 50 is an operating mechanism for interlocking the movement of the sprocket 40 with that of the lock 30. The lever element 50 is a narrow, longitudinal plate element having a hole 51 in its central longitudinal part. , and is rotatably supported on latch 30 with hole 51 fitted on pin 36 of latch 30.
    [00083] Lever member 50 includes an activation arm 52 and an operating arm 53; in the position of the lever element 50 as shown in figure 6, the activation arm 52 extends in the lower right direction from the geometric axis of rotation of the lever element 50, and the operating arm 53 extends upwards from the axis geometric rotation of the lever element 50. A guide hole 52A in a deformed rectangular shape is formed in the activation arm 52. Pin 45 of the sprocket 40 is inserted into the guide hole 52A. The distal end of the activation arm 52 is brought into contact with the flange 47 of the sprocket 40 and serves as a stop surface 52B to eliminate a gap in the lever element 50. The distal end of the operating arm 53 forms a hook 54 engageable with the left end of the extension spring 75. Since one end of the extension spring 75 is engaged with the hook 54 which is provided by forming the distal end shape of the operating arm 53 in a hook-like shape, the number of constituent parts can be reduced compared to the configuration in which the end of the extension spring 75 is fixed on the operating arm 53 using another part such as a rivet.
    [00084] For the purpose of fixing the extension spring 75, it is preferable that hook 44 and hook 54 are located at the same height (i.e., axial positions of hook 44 and hook 54 on the first axis 11 coincide with each other ). In order to adjust the hook 44 and the hook 54 to the same height, the thickness of the hook 44 can be differentiated from that of the main body 42 of the sprocket 40, or, alternatively, the operating arm 53 can be bent in the vicinity of the end distal of the operating arm 53 to adjust the height of the hook 54.
    [00085] As previously described, the extension spring 75 has two ends that are hooked on the sprocket 40 and the lever element 50, respectively, in order to apply a thrust force to always attract the main body 42 of the sprocket 40 and the operating arm 53 of the lever element 50. This driving force also acts to apply a force to propel the locking engagement part 42A of the sprocket 40 in the direction of the lock 30.
    [00086] The load receiving element 80 is made of resin and configured to contact the rod type P1 part of the precursor P and receive the load from the precursor P. As seen in figure 4, the load receiving element 80 basically includes a main body 81 having a rectangular cross section extending towards its end and an engaging claw 82 engageable with the resinous wrap 10 and reinforcement plate 20. The end face 81A of the enlarged end part of the main body 81 enters in contact with the flange 28 of the reinforcement plate 20 to transmit the received load from the precursor P to the reinforcement plate 20. The end of the main body 81 opposite the end face 81A is connected through the claw 82 and a part of generally semicircular connection 83. Accordingly, as seen in figure 5 (B), the load receiving element 80 has a U-shaped cross section made by the main body 81, the connection part 83 and the hitch claw 82.
    [00087] Supplied at the distal end of the engagement claw 82 is a projection of engagement 82A that can be engaged with the engagement hole described above 18P of the lower casing 10A; the engagement projection 82A projecting from the engagement jaw 82 in a direction opposite to the main body 81. In addition, a generally semicircular projection 84 that is similar to the connecting part 83 is provided at the distal end of the engagement jaw 82; the semicircular projection 84 projecting from the engagement claw 82 in the opposite direction to the main body 81. The semicircular shape of the connecting part 83 generally conforms to the shape of the lower part of the insertion groove 25 formed in the reinforcement plate 20, and the semicircular shape of the projection 84 generally conforms to the shape of the lower part of the insertion groove 15A formed in the lower casing 10A. A resin sheet 89 having an excellent sliding property is joined to the other end face of the charge receiving element 80 opposite the end face 81A. The surface of the resin sheet 89 is the charge receiving surface 89A as an example of a charge receiving part that is brought into contact with the precursor P. As seen from a direction in which a charge is applied from of the rod-type part P1 (that is, bottom to top direction in figure 6), the load receiving surface 89A is located between two screws 90. Accordingly, a force received by the load receiving surface 89A is located between two screws 90. Accordingly, a force received by the load receiving surface 89A is supported in good balance by two screws 90, with the result that an unnecessary rotation pulse does not occur in the locking device 1.
    [00088] As seen in figure 5 (b), when the lower casing 10A and the reinforcement plate 20 are in close contact with each other, a space is formed between the lower casing 10A and the reinforcement plate 20 due to the part with recess 18 of the lower casing 10A. The load receiving element 80 is mounted by inserting the hitch claw 82 into the space between the recessed part 18 and the reinforcement plate 20 while retaining the hinge plate 20 between the main body 81 and the hitch claw 82. A engagement projection 82A provided at the distal end of the engagement claw 82 enters and engages with the engagement hole 18P of the lower casing 10A. In addition, the end face 81A of the load receiving element 80 is placed in contact with the flange 28 of the reinforcement plate 20, where the load applied from the precursor P and received by the load receiving surface 89A can be transmitted to the reinforcement plate 20.
    [00089] As seen in figure 7, the lower casing 10A and upper casing 10B are fixed together by screws 90 and mounted in a box shape and are fixed to the support S2 together with the reinforcement plate 20. Each screw 90 includes a shaft 91, a threaded part 92 provided at the distal end of the shaft 91, and a flanged head 93 provided at the proximal end of the shaft 91. The shaft 91 has a larger diameter than the protrusion of the threaded portion 92, and this stepped diameter large one receives a clamping force of the screw 90 when the screw 90 is spun to the welding nut WN. This configuration can reduce the cost compared to the configuration in which a metallic collar is used instead of this shaft 91 having a large diameter.
    [00090] Various components such as latch 30 are mounted inside the bottom wrap 10A and the top wrap 10B, and then the bottom wrap 10A and the top wrap 10b are closed in a box-like format by combining the open side of the bottom wrap 10A and the open side of the upper wrap 10B; in this set, the positioning projections 11J, 12J illustrated in figure 5 (a) are fitted into positioning holes 22, 23 of the reinforcement plate 20. In this way, the resinous casing 10 and the reinforcement plate 20 are positioned and assembled together . The locking device 1 assembled as described above is then fixed to the support S2 by screws 90 so that, as seen in figure 7, the shaft 91 of each screw 90 is inserted into the screw hole 11H and the threaded part 92 is screwed into the solder nut WN in support S2. A spring washer 95 is inserted between the flanged head 93 and the reinforcement plate 20, so that the locking device 1 is held between the support S2 and the flanged head 93 by the resilient force of the flexible washer 95.
    [00091] As clearly illustrated in figure 7, one of the walls of the envelope 2, which are spaced in a direction of the axis of rotation of the lock 30, is formed by the resinous envelope 10, while the outer side of the other wall is formed by the reinforcement plate 20. Additionally, the reinforcement plate 20 is located outside when the locking device 1 is screwed to the frame S by the screws 90, and serves as a support surface for receiving the fastening force of the screw 90. For this configuration, since the reinforcement plate 20 is located outside, the reinforcement plate 20 can directly receive a force necessary to fix the locking device 1 and the reinforcement plate 20 can protect the resinous casing 10 from an external impact. The fixed state of the first axis 11 by the screw 90 has been described above with reference to figure 7. However, the same can be said of the fixation of the second axis 12 by the screw 90. For this reason, a description will be omitted from the fixation of the second axis 12.
    [00092] The operation of the locking device 1 configured as described above will now be described.
    [00093] Before activating the locking device 1 as shown in figure 6, the rod-like part P1 of the precursor P is located deep in the bottom of the insertion groove 2A of the wrapper 2, and the hook-like part 33 of the lock 30 retains the stem type P1 from below. In addition, the locking engagement part 42A is located in the locking recess part 34 of the lock 30 to restrict the rotation of the lock 30. In other words, the lock 30 is in the closed state and the locking device 1 is in the open state. In that position, the extension spring 75 generates a retracting force, and the locking engagement part 42A of the sprocket 40 is in contact with the bottom of the locking recess part 34. The rod-like part P1 of the precursor P comes into contact with contact with the load receiving surface 89A of the load receiving element 80, so that the load applied from the precursor P to the locking device 1 is transmitted to the flange 28 of the reinforcement plate 20 through the receiving element load 80 (see figures 5 (a) and (b)) and received by the reinforcement plate 20.
    [00094] By pulling the stem 70 from the pre-drive state shown in figure 6, the locking device 1 operates as seen in figure 8, so that the sprocket 40 first turns clockwise and the pin 45 of the wheel toothing 40 push the upper right edge of the guide hole 52A to thereby cause the lever element 50 to rotate counterclockwise while extending the extension spring 75. Although figure 8 illustrates little change with respect to the state illustrated in figure 6, the force applied to the lever element 50 is transmitted to the latch 30 through pin 36, so that the latch 30 is about to turn slightly in a clockwise direction.
    [00095] When the rod 70 is pulled out a little more, as seen in figure 9, the sprocket 40 additionally rotates clockwise and the locking engagement part 42A is completely disengaged from the locking recess part 34. A lock 30 then rotates clockwise by the force applied from the lever element 50 through pin 36, and the locking engagement part 42A faces the open contact surface 35 of the lock 30.
    [00096] Turning the stem 70 in the state shown in figure 9 by the action of the spring force 75, as seen in figure 10, the locking engagement part 42A of the sprocket 40 is placed in contact with the open contact surface 35 to lock 30. As illustrated by the thick arrow in figure 10, the thrust force of the sprocket 40 to push lock 30 is directed from the point of contact between the locking engagement part 42A and the surface open contact surface 35 towards the center of curvature of the open contact surface 35. Since the center of curvature of the open contact surface 35 changes to the right from the center of rotation of the latch 30 in the open contact surface range 35 where the locking engagement part 42A comes into contact with the open contact surface 35, the force applied from the sprocket 40 by the pushing force of the extension spring 75 and the retraction of the lock 30 acts as a force (thrust of rot action) to cause the lock 30 to rotate clockwise, that is, into the open state.
    [00097] When the lock 30 rotates clockwise by this rotation impulse while the open contact surface 35 slides in the locking engagement part 42A, the lock 30 moves into the open space as seen in figure 11, thus allowing , that the stem-like part P1 of the precursor P is disengaged from the insertion groove 2A. That is, the locking device 1 is in the unlocked state.
    [00098] In order to return the locking device 1 from the unlocked state to the locked state, the stem-like part P1 of the precursor P is inserted into an insertion groove 2A from the state illustrated in figure 11, pressed against the groove 32 lock 30, and additionally moved to rotate lock 30 counterclockwise. By this operation the locking engagement part 42A remaining in contact with the open contact surface 35 slides over the open contact surface 35, and after sufficient rotation of the lock 39, the locking engagement part 42A enters the recess part locking mechanism 34 by pushing the force of the extension spring 75. That is, the locking device 1 returns to the locked state shown in figure 6.
    [00099] According to the locking device 1 of this modality, the lock 30, the sprocket 40 and the lever element 50 are rotatably supported and received in the resinous casing 10, so that even if these parts rotate and enter in contact with the wrapper during the operation described above, the generated sound will not become a metallic sound and, in this way, the noise can be suppressed. In addition, since the sliding contact of the lock 30, the sprocket 40 and the lever element 50 with respect to the resinous casing 10 does not involve metal-to-metal contact, but metal-to-resin contact, a feeling of smooth operation can be obtained .
    [000100] In particular, the locking device 1 according to this embodiment is configured so that the first axis 11 and the second axis 12 which are integral with the resinous casing 10 support the first hole 31 of the lock 30 and the second hole 41 of sprocket 40, respectively. This can prevent metal-to-metal contact, eliminate metallic sound, and achieve a smooth operating sensation. Additionally, since the first ribs 14P, 14Q, 14S, 14T and the second ribs 14R, 14U are formed on the inner surface of the resinous casing 10 along the rotation directions of the lock 30 and the sprocket 40, and the lock 30 and the sprocket 40 slides on these ribs within the resinous casing 10, an excellent operating sensation can be obtained thanks to the reduced operating noise of the locking device 1 and reduced slip resistance. Additionally, since the resinous cover 30B covers the lock 30 on the side of the lock 30 where the sprocket 40 slides, metal-to-metal contact between the lock 30 and the sprocket 40 is avoided to suppress metallic sound, and a feeling of smooth operation can be obtained.
    [000101] Additionally, since the resinous casing 10 has a lower density than the conventional base made of a steel plate, the weight of the locking device 1 can be reduced. The first axis described above 11 and the second axis 12 are shaped like a circular tube to reduce the change in thickness of the resinous casing 10, and in this way, molding can be performed with increased precision. Additionally, the first axis 11 and the second axis 12 are hollow and, therefore, bad in terms of strength, but since the shaft 91 of the screw 90 is inserted in each of the first and second axes 11, 12 to make the shaft solid for reinforcement, sufficient stiffness of the first and second axes 11, 12 can be guaranteed. In addition, since the screws 90 required for fixing the locking device 1 to the frame S as an example of another device are used as parts to constitute the solid structure, the number of constituent parts can be reduced compared to the configuration in which a separate part is used for reinforcement. This can result in cost savings in addition to reducing the weight of the locking device 1.
    [000102] If the lever element 50 made of metal is arranged in a position to directly contact the resin shafts to support the lock 30 and the sprocket 40 in order to eliminate a gap of the lever element 50, the shafts may wear out. However, in the locking device 1 according to this modality, since the flange 47 is provided for about the second hole 41 of the sprocket 40 and the lever element 50 contacts the outer periphery of that flange 47, it is possible preventing wear of the resinous shafts in addition to preventing a play of the lever element 50 so that an occurrence of unnecessary noise can be avoided.
    [000103] Additionally, in the locking device 1 according to this modality, while the locking engagement part 42A of the sprocket 40 is in contact with the open contact surface 35 of the lock 30, this contact force acts to cause that the lock 30 rotates in the direction of the open state. This can prevent lock 30 from being stopped in an unexpected position.
    [000104] Additionally, since the reinforcement plate 20 constitutes the insertion groove 2A (25) to guide the rod-like part P1, the wear of the insertion groove 2A by the operation of the locking device 1 can be suppressed and possible reduction in the durability due to the use of resinous wrap 10 can be suppressed. The reduced stiffness of the casing 2 due to the use of resinous casing 10 can be compensated by the reinforcement plate 20 to partially cover the resinous casing 10, and in this way, the necessary stiffness can be guaranteed.
    [000105] Additionally, since resinous wrap 10 includes bottom wrap 10A and top wrap 10B which are connected by hinge 19 and molded together, bottom wrap 10A and top wrap 10B can be molded together, resulting in reduction the cost. Additionally, since the orientation of the lower casing 10A and the upper casing 10B is previously determined by the hinge 19, the assembly of the locking device 1 can be carried out by installing the internal parts in order inside the lower casing 10A and then closing the upper casing 10B without paying attention to the orientation of these wraps 10A, 10B. This can result in excellent productivity.
    [000106] Since the locking device 1 according to this modality includes the load receiving element 80 made of resin, and the rod-type part P1 of the precursor P comes in direct contact with the load receiving element 80, the precursor load P being able to receive gently by the load receiving element 80 when locking the locking device 1, and an excellent operational sensation can be obtained. Although the load receiving element 80 engages with both the reinforcement plate 20 and the resinous casing 10, the engagement claw 82 engages with the engagement hole 18P formed in the resinous casing 10. Accordingly, it is not necessary to form the coupling hole 18P in the reinforcement plate 20 made of steel plate, which is easy to manufacture. Additionally, as viewed from the axial direction of the first axis 11, the load receiving surface 89A of the load receiving element 80 is located between two screws 90, in a central part of the line segment connecting the centers of the screws 90. Accordingly, a force received by the load receiving surface 89A is supported in good balance by the two screws 90, with the result that an unnecessary rotation pulse can be prevented in the locking device 1.
    [000107] Additionally, the locking device 1 according to this modality includes positioning projections 11J, 12J provided in the resinous casing 10 and the positioning holes 22, 23 of the reinforcement plate 20, which are interlockable with each other for positioning , and the projections and positioning 11J, 12J are provided at the edges of the holes through which the screws 90 pass. This can provide a simple configuration compared to the configuration in which the positioning projections and corresponding holes are provided in other positions, and the positioning projections 11J, 12J and positioning holes 22, 23 can be engaged with each other without failure.
    [000108] Additionally, since the flange 28 of the reinforcement plate 20 is provided in the recess part 29 of the contour of the reinforcement plate 20 as viewed from the axial direction of the first axis 11, the reinforcement plate 20 can have its size reduced and an efficient cut presentation for the reinforcement plate 20 can be achieved. In addition, since the reinforcement plate 20 is located outside when the locking device 1 is attached to frame S, the reinforcement plate 20 can directly receive a force necessary to fix the locking device 1 and the reinforcement plate 20 can protect the resinous wrap 10 from an external impact.
    [000109] Next, with reference to figures 12 to 15, a description will be provided of a locking device for vehicles according to a modified modality. Structural parts similar to those previously described in the modality described above are denoted by the same numerical references and a detailed description will be omitted.
    [000110] The lower casing 102 shown in figure 12 includes an elevated portion 103 that swells outwardly from the base portion 102A. The raised portion 103 has a wall surface that forms a stepped portion from the base portion 102A, and the curved wall surface to avoid positioning projections 11J, 12J and provides a curved surface 103A.
    [000111] In the upper end part of the recess part 18 a coupling hole 18Q in the form of a recess instead of a hollow opening. The bottom wrap 102 is made of resin as an example of the first material.
    [000112] As seen in figures 12 and 13, the reinforcement plate 120 is formed to substantially surround the entire outer region of the lower envelope 102 except for the elevated part 103. The reinforcement plate 120 is made by pressing a laminated metal which is an example of the second material having a higher density and a greater modulus of elasticity than resin; the reinforcement plate 120 includes a flat plate-shaped base part 121, side wall parts 127 provided by partial inward elevation at the outer edges of the base part 121, and a flange 128 raising from the base part 121 along the curved surface 103A of the raised part 103. The flange 128 has a contact part 129 in the central part thereof, and the end face 81A of the load receiving element 80 is brought into contact with the contact part 129.
    [000113] As seen in figures 13 and 14, the side wall parts 127 of the reinforcement plate 120 are interlockable with the side wall parts 102B of the lower casing 102 so that they can be temporarily assembled together.
    [000114] As seen in figure 15, the upper envelope 104 is formed as a separate and discrete element of the lower envelope 102. The upper envelope 104 is substantially the same and symmetrical with the lower envelope 102, except that the upper envelope 104 does not have the raised part 103, the first axis 11 and the second axis 12. The upper casing 104 is made of resin as an example of the first material.
    [000115] As seen in figure 14, two first ribs 114P, 114Q are formed around the first axis 11 provided on the inner surface of the lower envelope 102, each first rib 114P, 114Q is shaped like a coaxial circular arc with the first axis 11 and projecting from the inner surface of the base part 102A. On the inner surface of the base part 102A around the second axis 12, a second rib 114R having one end connected to the side wall part 102B and the other end shaped as a circular arc coaxial with the second axis 12 is provided.
    [000116] Additionally, third ribs 114S are provided on the inner surface of the base part 102A except for the region surrounded by the elevated part 103.
    [000117] On the side half of the base part 102A where the first ribs 114P, 114Q are provided, the third ribs 114S extend lengthwise and crosswise to form a grid-like pattern. On the other hand, on the other half of the side of the base part 102A where the second rib 114R is provided, the third ribs 114S extend in length and crosswise from the second rib 114R. The third ribs 114S are connected to the side wall part 102B, the raised part 103, the first ribs 114P, 114Q and the second rib 114R, and extend throughout the inner region of the base part 102A except for the region surrounded by the raised part 103, so that the stiffness of the lower casing 102 can be improved.
    [000118] The first rib 114P is formed in a position corresponding to the rotation range of the lock 30.
    [000119] The first rib 114Q is formed in a position corresponding to the rotation range of the lever element 50.
    [000120] The second rib 114R is formed in a position corresponding to the rotation range of the sprocket 40.
    [000121] The first rib 114P and the second rib 114R have the same height. The first rib 114P is contacted by lock 30, and the second rib 114R is contacted by sprocket 40. The third rib 114S has the same height as the first rib 114Q. In addition, the first rib 114P and the second rib 114R are larger than the third rib 114S. For this reason, lock 30 can slide into contact with the first rib 114P and sprocket 40 can slide into contact with the second rib 114R without contacting the third ribs 114S, with the result that lock 30 and the sprocket 40 can rotate smoothly. As seen in figures 6, 8 to 11, since the lever element 50 is operated while it is located on the latch 30 and the sprocket 40, the lever element 50 does not come into contact with the first rib 114Q and, therefore, , the first rib 114Q, together with the third ribs 114S, serves to improve the rigidity of the resinous wrap.
    [000122] As seen in figure 15, the upper wrap 104 includes side wall parts 104B provided by partial inward elevation at the outer edges of the base part 104A.
    [000123] Two first ribs 114T, 114U are provided in the base part 104A around the screw hole 13P, which are arranged in symmetrical positions of the first ribs 114P, 114Q formed in the lower casing 102. Additionally, it is provided in the base part 104A around the screw hole 13Q there is a second rib 114V which is arranged in a symmetrical position of the second rib 114R.
    [000124] In addition, on the entire internal surface of the base part 104A, the third ribs 114W are provided, extending lengthwise and crosswise to form a grid-like pattern. With this configuration, the rigidity of the upper casing 104 can be improved.
    [000125] The first rib 114T has a sufficient height to contact the lock 30 and is formed in a position corresponding to the rotation range of the lock 30. The second rib 114V has a sufficient height to contact the sprocket 40 and is formed in a position corresponding to the rotation range of the sprocket 40. The first rib 114T and the second rib 114V have the same height.
    [000126] The first rib 114U has the height in contact with the lever element 50 which is interlockable with the lock 30, and is formed in a position corresponding to the rotation range of the lever element 50. The first rib 114U has the same height as the third rib 114W.
    [000127] When assembling the locking device configured as described above, several components including the lock 30, the sprocket 40 and the lever element 50 are installed in the lower casing 102, and then the lower casing 102 and the upper casing 104 are bonded together in the box-shaped resinous wrap. Thereafter, the positioning projections 11J, 12J are fitted into the positioning holes 22, 23 of the reinforcement plate 120, and the resinous wrap and reinforcement plate 120 are combined with the flange 128 of the reinforcement plate 120 in contact with the curved surface 103A of the raised portion 103 of the casing 102. Additionally, the load receiving element 80 is inserted into the insertion groove 25 of the reinforcement plate 120 until the end face 81A of the load receiving element 80 is brought into contact with the contact part 129 of the flange 128. The assembly completed in this way is fixed to the support S2 (see figure 1) by screws 90.
    [000128] The locking device configured as described above in this modified modality operates similarly to the locking device described above 1.
    [000129] In the locking device described above according to the modified mode, advantageous effects similar to those observed in the locking device described above 1 can be obtained.
    [000130] Additionally, since the lower casing 102 includes the raised part 103, the rigidity of the resinous casing can be improved.
    [000131] Additionally, the first ribs 114Q, 114U formed on the inner surface of the resinous wrap are shorter than other first ribs 114P, 114T and the second ribs 114R, 114V. Accordingly, the size of the first ribs 114Q, 114U can be reduced according to the required stiffness of the resinous wrap, so that the weight of the resinous wrap can be reduced.
    [000132] Although an embodiment of the present invention has been described above, the present invention is not limited to the embodiment described above and various changes and modifications can be made without departing from the attached embodiments.
    [000133] For example, the wrap can consist of resinous wrap without including the reinforcement plate 20, 120. In this example, the hook-like part 33 of the lock 30 can be constructed as the second element configured to contact the rod-like part P1 of the precursor P.
    [000134] For example, in the above modality, the axles to support the lock 30 and the sprocket 40 are integral with the resinous wrap. However, these shafts can be made of metal. Additionally, a resinous shaft can be used for one of the lock 30 and the sprocket 40.
    [000135] In the above embodiment, a specific fixation structure for the locking device 1 using two screws 90 has been described. However, the fixation structure is not limited to this exemplified modality. For example, the fastening element can be a rivet instead of a screw, and the fastening element can fix the locking device in a part beyond the resin axis as exemplified in the above embodiment.
    [000136] In the above modality, both the lower wrapper 10A and the upper wrapper 10B are formatted as a tray. However, one can be formed as a tray, while the other can be formed as a flat plate.
    [000137] In the above modality, the first material is resin and the second material is steel material. However, this is merely an example, and, for example, the first material may be an aluminum alloy.
    [000138] In the above modality, the insertion groove 2A (15A, 15B, 25) to guide the rod-type part P1 is formed in each of the resinous wrap and reinforcement plate. However, the insertion groove can only be formed on the reinforcement plate 20, 120.
    [000139] Additionally, the locking device 1 is not limited to use with the backrest of the vehicle seat such as a car, but can be provided on the bottom of the seat or an extension of the vehicle seat. In addition, the locking device 1 can be used as a locking device for locking and unlocking an openable element such as a car trunk. The vehicle seat is not limited to a car seat, and can be a seat for a ship or a seat for an aircraft.
    权利要求:
    Claims (16)
    [0001]
    1. Locking device (1) for vehicles capable of engaging and disengaging from a rod-type part (P1) to lock and unlock the locking device (1), the locking device (1) comprising: a wrap (2) by least partially formed by a first element made of a first material and having an insertion groove (2A) to allow the stem-like part (P1) to be inserted into it; a second element made of a second material and configured to contact the stem-like part (P1); and a latch (30) received inside and supported in a rotating manner by the wrap (2) and having a hook-like part (33) engageable with the rod-like part (P1), in which the second material has a higher density and a module greater elasticity than the first material, characterized by the fact that: the hook-like part (33) of the lock (30) is made of the second material, in which the first material is resin and the first element forms a resinous wrap (10 ), in which the second material is metal, in which the resinous casing (10) has a first axis (11) formed integrally that protrudes into the resinous casing (10), in which the lock (30) has a first hole (31) through which the lock (30) is fitted on the first axis (11), and where the lock (30) is rotatably supported by the resinous casing (10) by a coupling of the first axis (11) and the first hole (31).
    [0002]
    2. Locking device (1) for vehicles, according to claim 1, characterized by the fact that the second element forms a reinforcement plate (20) configured to reinforce the resinous wrap (10).
    [0003]
    3. Locking device (1) for vehicles, according to claim 2, characterized by the fact that the wrap (2) comprises the resinous wrap (10) and the reinforcement plate (20), and the insertion groove ( 2A) is formed in the reinforcement plate (20).
    [0004]
    4. Vehicle locking device (1) according to claim 35, characterized in that the first axle (11) is shaped like a circular tube, the locking device (1) still comprising a first element fixing device (90) configured to penetrate through an internal region of a tube of the first axis (11) and fixing the locking device (1) to another device.
    [0005]
    5. Locking device (1) for vehicles, according to claim 3, characterized by the fact that it still comprises a toothed wheel (40) received in the wrapper (2) and supported in a rotating manner by the first element and configured to engage with the lock (30) to maintain a closed state in which the lock (30) is interlockable with the rod-type part (P1), and an open state in which the lock (30) is detachable from the rod-type part (P1), in that the first element has a second axis (12) integrally formed that protrudes into the envelope (2) and is shaped like a circular tube, in which the sprocket (40) has a second hole (41) through which the sprocket (40) is fitted on the second axle (12), and the sprocket (40) is rotatably supported by the first element by engaging the second axle (12) and the second hole (41), and in which the locking device (1) further comprises a second fixing element (90) configured to penetrate through a internal region of a tube of the second axis (12) and fix the locking device (1) to another device.
    [0006]
    6. Locking device (1) for vehicles, according to claim 4, characterized by the fact that it still comprises a toothed wheel (40) received in the wrapper (2) and supported in a rotating manner by the first element and configured to engage with the lock (30) to maintain a closed state in which the lock (30) is engaged with the rod-type part (P1) and an open state in which the lock (30) is disengaged from the rod-type part (P1), in which the first element has a second axis (12) integrally formed that protrudes into the casing (2) and is shaped like a circular tube, in which the sprocket (40) has a second hole (41) through which the wheel sprocket (40) is fitted to the second axle (12), and the sprocket (40) is rotatably supported by the first element by an engagement of the second axle (12) and the second hole (41), in which the locking device locking (1) further comprises a second fastening element (90) configured to penetrate through an entire region rna from a tube of the second axis (12) and fix the locking device (1) to another device, and in which as seen from a direction in which a load is applied from the rod-like part (P1), a load receiving part (89A) configured to receive a load from the rod-like part (P1) is provided between the first fastening element (90) and the second fastening element (90).
    [0007]
    7. Locking device (1) for vehicles, according to claim 3, characterized by the fact that it still comprises a load receiving element (80) resinous having a load receiving part (89A) configured to receive a load from the stem-type part (P1), in which the resinous casing (10) has a coupling hole (18P) that can be coupled with the load receiving element (80), in which the reinforcement plate (20) is made of metal laminated and has a support part (28) configured to withstand a force applied from the rod-like part (P1) and received by the load receiving element (80) and in which the load receiving element (80) is configured to hold the reinforcement plate (20) and has an engagement projection (82A) that can be engaged with the engagement hole (18P) of the resinous casing (10).
    [0008]
    8. Locking device (1) for vehicles, according to claim 4, characterized by the fact that it still comprises a toothed wheel (40) received in the wrapper (2) and supported in a rotating manner by the resinous wrapper (10) and configured to engage with the latch (30) to maintain a closed state in which the latch (30) engages with the stem-type part (P1) and an open state in which the latch (30) is detachable from the stem-type part (P1) , in which the resinous casing (10) has a second axis (12) formed integrally that protrudes into the casing (2) and is shaped like a circular tube, in which the sprocket (40) has a second hole (41 ) through which the sprocket (40) is fitted on the second axle (12), and the sprocket (40) is rotatably supported by the casing (2) by an engagement of the second axle (12) and the second hole (41), wherein the locking device (1) still comprises a second fastening element (90) configured to penetrate through of an inner region of a tube of the second axis (12) and fix the locking device (1) in another device, in which the resinous wrap (10) has holes (11H, 12H) to allow the first fixing element (90) and the second fastener (90) penetrate through them, and an edge of each hole (11H, 12H) is provided with a positioning projection (11J, 12J) extending outwardly from the resinous casing ( 10), and in which the reinforcement plate (20) has positioning holes (22, 23) fitted over the corresponding positioning projections (11J, 12J).
    [0009]
    Locking device (1) for vehicles, according to claim 7, characterized in that the support part (28) is provided in a recess part (29) of a contour of the reinforcement plate (20) .
    [0010]
    10. Locking device (1) for vehicles, according to claim 1, characterized by the fact that the first element constitutes a wall of the envelope (2) located on one side in a direction of a geometric axis of rotation of the lock ( 30), and the second element constitutes at least one outer side of a wrap wall (2) located on the other side, and the second element is located outside when the locking device (1) is attached to a another device by a fastener (90), and serves as a support surface for receiving a fastening force from the fastener (90).
    [0011]
    11. Locking device (1) for vehicles, according to claim 1, characterized by the fact that the resinous wrap (10) is formed as a box shape when assembling two elements together, and the two elements are molded together with a joint connecting the two elements.
    [0012]
    12. Locking device (1) for vehicles, according to claim 1, characterized by the fact that it still comprises a metallic sprocket (40) received in, and rotatively supported by, the resinous wrap (10) and configured to engage with the lock (30) to maintain a closed state in which the lock (30) is interlockable with the rod-type part (P1) and an open state in which the lock (30) is detachable from the rod-type part (P1), in which the casing (2) has a second integrally formed axis (12) that protrudes into the casing (2), and in which the sprocket (40) has a second hole (41) through which the sprocket (40) it is fitted over the second axle (12), and the sprocket (40) is rotatably supported by the casing (2) by an engagement of the second axle (12) and the second hole (41).
    [0013]
    13. Locking device (1) for vehicles according to claim 1, characterized by the fact that the first axle (11) is shaped like a circular tube, and in which the locking device (1) still comprises a first fixing element (90) made of metal and configured to penetrate through an inner region of a tube of the first axis (11) and fix the locking device (1) in another device.
    [0014]
    14. Vehicle locking device (1) according to claim 12, characterized in that the second axle (12) is shaped like a circular tube, and the locking device (1) still comprises a second fixing element (90) made of metal and configured to penetrate through an internal region of a tube of the second axis (12) and fix the locking device (1) in another device.
    [0015]
    15. Locking device (1) for vehicles, according to claim 1, characterized by the fact that the resinous wrap (10) has a first rib provided around the first axis (11) and protruding into the resinous wrap (10).
    [0016]
    16. Locking device (1) for vehicles, according to claim 1, characterized by the fact that it still comprises: a metallic gearwheel (40) received in, and rotatively supported by, the resinous wrap (10) and configured to engage with the latch (30) to maintain a closed state in which the latch (30) engages with the stem-type part (P1) and an open state in which the latch (30) is disengaged from the stem-type part (P1) ; a lever element made of metal and rotatably supported by the latch (30) and configured to engage the sprocket (40) to transmit a movement from the sprocket (40) to the latch (30); and a drive element configured to engage with the lever element and the sprocket (40); wherein the resinous casing (10) has a second integrally formed axis (12) that protrudes into the resinous casing (10), where the sprocket (40) has a second hole (41) through which the sprocket (40) is fitted over the second shaft (12), and a flange provided around the second hole (41) and projecting in an axial direction of the second hole (41), in which the sprocket (40) is supported rotating through the resinous casing (10) by engaging the second shaft (12) and the second hole (41), and in which the lever element is pushed by a driving force of the driving element and comes into contact with the flange when the lock (30) is in the closed state.
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    同族专利:
    公开号 | 公开日
    JP5715696B2|2015-05-13|
    CN105329118A|2016-02-17|
    JP2015163506A|2015-09-10|
    JPWO2012173084A1|2015-02-23|
    US20140145057A1|2014-05-29|
    WO2012173084A1|2012-12-20|
    BR112013032243A2|2016-12-20|
    CN103597158A|2014-02-19|
    CN105329118B|2017-12-26|
    JP6005782B2|2016-10-12|
    US20160230860A1|2016-08-11|
    US9346374B2|2016-05-24|
    CN103597158B|2015-12-23|
    US10781897B2|2020-09-22|
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    法律状态:
    2018-03-27| B15K| Others concerning applications: alteration of classification|Ipc: F16H 21/44 (2006.01), B60N 2/015 (2006.01), B60N 2 |
    2018-05-15| B15K| Others concerning applications: alteration of classification|Ipc: B60N 2/30 (2006.01), B60N 2/015 (2006.01), B60N 2/ |
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-11-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-15| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-02-09| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/06/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2011135679|2011-06-17|
    JP2011-135679|2011-06-17|
    PCT/JP2012/064895|WO2012173084A1|2011-06-17|2012-06-11|Latching device for vehicles|
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