法国专利FR3043027A1 VEHICLE SEAT

专利PDF首页>>法国专利

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:
A vehicle seat comprises: a seat seat (3); a base (4) mounted on a vehicle body; a seat lifter (5) configured to adjust a height of the seat cushion (3) by a rotational movement of a link connecting the seat cushion (3) to the base (4); and a fastening (10) of a safety belt, the fastening being fixed on the link.
公开号:FR3043027A1
申请号:FR1660573
申请日:2016-11-02
公开日:2017-05-05
发明作者:Kazuya Suzuki；Masato Arashi；Akira Kaneko
申请人:Toyota Boshoku Corp；Toyota Motor Corp；
IPC主号:

专利说明:

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat comprising a seat lift device configured to adjust a height of a seat base relative to a vehicle body. 2. Description of the Prior Art [0002] In terms of a vehicle seat, a configuration in which a lap belt anchorage of a seat belt is secured to a support as a connection portion between a seat cushion and a slide rail (Japanese Patent Application Publication Marker No. 7-108860 (JP 7-108860 A)) has been disclosed. With such a configuration, the waist belt anchor moves, following a sliding operation of the vehicle seat, so that a tension of the safety belt is kept constant even if the vehicle seat slides.
SUMMARY OF THE INVENTION
However, in the above technique, in a case where the vehicle seat is equipped with a seat lift device, the ventral waist anchor on the slide rail can not follow this movement; which can increase the tension of the seat belt due to lifting of the vehicle seat. The present invention provides a vehicle seat that can cause a seatbelt attachment to follow a movement of a seat lift device appropriately.
[0004] A vehicle seat according to one aspect of the present invention comprises: a seat cushion; a base mounted on a vehicle body; a seat lift device configured to adjust a height of the seat cushion by a rotational movement of a link connecting the seat cushion to the base; and a fastening of a safety belt, the fastening being fixed on the link.
According to the above aspect, the fixing of the safety belt can be moved after the adjustment of the height of the seat seat with the rotational movement of the rod.
In the above aspect, the link may be connected to an outer portion of a side frame of the seat seat, and the attachment may be attached to an outer portion of the link.
According to the above configuration, the fastening of the safety belt can be fixed on the link so as not to interfere with the lateral frame of the seat seat. This therefore makes it possible to prevent the rotational movement of the rod from being disturbed.
In the above aspect, the fastener may be placed on a fastening face portion so as to be attached to the fastening face portion, the fastening face portion being formed in the tie rod such that that a surface of the attachment face portion is oriented towards a diagonally higher side.
According to the above configuration, the fastening face portion to which the fastener is to be fastened is provided so as to face the diagonally upper side, so that a fixing direction of the fastening on the part fixing face is converted to an upper side. Therefore, even in a configuration in which a securement space from a lateral side is small, it is still possible to enlarge the fastening space so as to be open upwards.
In the above configuration, the attachment face portion may be formed so as to protrude partially outwardly of the link.
According to the above configuration, the fastening face portion of the rod, on which the fastening is fixed, partially projects outwards, so that it is difficult for the fastener to interfere with the others. parts of the link when the attachment is fixed. This therefore makes it easier to fix the attachment to the link.
In the above aspect, the attachment may be attached to an intermediate portion of the link in a link length direction.
According to the above configuration, compared to a configuration in which the attachment is attached to a connecting end portion of the link with another element, it is possible to ensure a wide space in which the attachment can be attached to the link.
In the above aspect, the fastener may be attached to the link in a state where tilt rotation is restricted.
According to the configuration above, it is possible to limit a direction of disposition of the seat belt extending from the attachment in a given range.
In the above configuration, the fastener can be fixed in one piece on the link by a fastening structure inserted into the fastener and the connecting rod in a penetrating manner in a state where a projection portion formed in the fastener is inserted into a recessed portion formed in the link.
According to the configuration above, it is possible to firmly and integrally fasten the fastener on the link without welding.
In the above configuration, the rod can be provided with projections which abut against the attachment of both sides in a direction of rotation.
According to the above configuration, it is possible to fix the attachment on the rod in a state where the tilting rotation is restricted.
In the above aspect, the seat lift device may comprise parallelogram mechanisms configured to connect the seat seat to the base by a pair of right and left rods on the front side and a pair of rods. left and right side of the rear side, and a drive unit configured to transmit a rotational force and a braking force to any of the links constituting the parallelogram mechanisms, and the rod on which the attachment is fixed can receive a braking force transmitted from the drive unit.
According to the above configuration, when a large load which causes a strong body pressure of a seated occupant is applied to a seat belt, it is possible to stably receive the load at a position fixed without turning, because of this application of load, the rod on which the attachment is fixed.
BRIEF DESCRIPTION OF THE DRAWINGS
The characteristics, advantages and technical and industrial importance of the exemplary embodiments of the invention will be described below with reference to the accompanying drawings, in which like references designate identical elements, and in which:
Fig. 1 is a perspective view illustrating a schematic configuration of a vehicle seat according to the first embodiment;
Fig. 2 is a perspective view illustrating an essential portion of the vehicle seat in an enlarged manner;
Figure 3 is an exploded perspective view of a rod and a fastener;
Fig. 4 is a side view of the essential portion showing a state where the seat lifter is moved downward;
Figure 5 is a side view of the essential portion illustrating a state where the seat lifter is moved upward;
Figure 6 is a sectional view along a line VI-VI in Figure 4; and
Fig. 7 is a side view of the essential portion showing a schematic configuration of a vehicle seat of the second embodiment in a state corresponding to Fig. 5.
DETAILED DESCRIPTION OF THE EMBODIMENTS
Embodiments for carrying out the invention will be described below with reference to the drawings.
A configuration of a seat 1 (a vehicle seat) of the first embodiment is initially described with reference to Figures 1 to 6. The seat 1 of the present embodiment is provided as a right seat for a car, and includes a seat back 2 serving as a seat back for a seated occupant, and a seat seat 3 serving as a seat portion, as shown in Fig. 1. The seat 1 has a so-called seat configuration motorized "and configured to provide adjustment of a back angle of the seat back 2 and adjustment of a sitting position of the seat seat 3 by actuating a motor of a switch.
More specifically, the seat back 2 is configured such that lower ends of right and left sides thereof are connected to the rear ends of right and left sides of the seat seat 3 via electrically driven inclination devices (not shown), respectively. This keeps the seat back 2 in a state where the back angle is normally set by the respective tilt devices (not shown), and when the respective tilt devices are electrically operated by operating a switch (no shown), the back angle is adjusted in a forward-to-back direction.
In addition, the seat seat 3 is connected to a floor of a vehicle via a pair of electrically driven slide rails right and left 4. Here, the seat seat 3 is normally maintained in a state where its sitting position is fixed by the slide rails 4, and when the slide rails 4 are actuated electrically by actuating a switch (not shown), the seated position is adjusted in the front-rear direction. Here, the slide rails 4 are an example of a "base" of the present invention.
Furthermore, the seat seat 3 is configured such that an electrically driven seat lift device 5 is provided between the seat seat 3 and each rail of the pair of right and left guide rail rails. 4. Here, the seat seat 3 is normally maintained in a state where its seat height position is fixed by the seat lift device 5, and when the seat lift device 5 is electrically actuated by actuating a switch (not shown), the seat height position is adjusted.
In addition, the seat seat 3 comprises an electrically driven forward inclination mechanism 6 provided in a front portion. Here, the seat seat 3 is normally maintained in a state where a support angle of the front portion which supports femoral regions of the sitting occupant is fixed by the front tilt mechanism 6, and when the mechanism of front tilt 6 is actuated electrically by operating a switch (not shown), the support angle of the front portion is adjusted in a height direction.
The seat 1 is thus configured to make an adjustment in eight directions, that is to say the adjustment of the backrest angle of the seat back 2 (in two directions of the front and rear directions), the setting from the sitting position of the seat seat 3 (in two directions of the front and rear directions and two directions of the up and down directions), and the adjustment of the support angle of the front part of the seat seat 3 (in two directions up and down directions). These adjustment operations are performed by operating an electrical switch (not shown) provided on a side portion or equivalent of an outer side (a left side in the figure) of the seat seat 3 in a vehicle width direction.
In addition, as shown in Figure 2, the seat 1 is configured such that a lap belt anchor 10 attached to a distal end of a seat belt strap of a seat belt (no shown) is attached to a rear link 5B provided on the outer side in the vehicle width direction and constituting the seat lift device 5. Since the lap belt anchor 10 is fixed in such a position, the anchor The lap belt 10 may suitably move up / down the seat height of the seat cushion 3 by rotating the rear link 5B of the seat lift device 5 as illustrated. in Figures 4, 5. Here, the rear link 5B on the outside in the vehicle width direction is an example of a "link" of the present invention.
Since the lap belt anchorage 10 moves according to the rotational movement of the rear link 5B, even if the seat height of the seat seat 3 is moved up / down, a position the ventral waist anchor 10 with respect to the seat seat 3 does not change easily. Therefore, it is possible to maintain a steady state normally without increasing or decreasing a seat belt tension as a function of the movement of the seat lifter 5 to be moved up / down.
In addition, as shown in FIGS. 1, 2, the rear link 5B which is provided on the outer side in the vehicle width direction and on which the lap belt anchor 10 is attached is connected to a drive unit 5E configured to provide a rotational driving force and a braking force to move upwardly / downwardly the seat lift device 5. With such a configuration, the rear link 5B on the side Outside in the vehicle width direction is configured to receive a power transmitted from the drive unit 5E, such that the rear link 5B is rotated or stopped rotating. Since the lap belt anchorage 10 is attached to the rear link 5B which receives a braking force transmitted from the drive unit 5E, when a large load which causes strong pressure of the seated occupant's body made of a front collision or equivalent of the vehicle has entered the seat belt, it is possible to receive the load stably in a fixed position without rotating, because of this load inlet, the rear link 5B on which The ventral waist anchor 10 is fixed.
It should be noted that, when the lap belt anchor 10 is fixed in such a position, the ventral waist anchor 10 can move following an actuation of the slide rails 4 at the time the seat of seat 3 moves forwards or backwards by actuating the slide rails 4. Therefore, it is possible to maintain normally a constant state without increasing or decreasing the tension of the safety belt as a function of movement of slide rails 4.
In addition, a loop equipped with a tongue plate passed through the seat belt webbing (not shown) is also provided in the seat 1 in a state where the buckle is fixed on the rail of slide 4 provided on an inner side in the vehicle width direction. Here, the buckle (not shown) is also movable according to the movement of the slide rails 4. Therefore, with the configuration in which the buckle (not shown) and the lap belt anchor 10 follow the movement of the slide rails 4 it is possible to maintain normally a constant state without increasing or decreasing the tension of the safety belt even if the slide rails 4 are moved.
The following describes a specific fastening structure of the rear link 5B on the outer side of the waistbelt anchor 10 in the vehicle width direction, as well as a concrete configuration of the seat cushion 3 The configuration of the seat cushion 3 is described first. As shown in FIG. 1, seat seat 3 is configured such that a metal frame 3F forming its framework is assembled into a square frame shape in a plan view along an outer circumferential shape of the seat seat 3.
More specifically, the 3F seat frame comprises: a pair of right and left side frames 3Fa; and a front panel 3Fb provided between front ends of respective side frames 3Fa so as to support the femoral regions of the occupant seated from a lower side. A front tube 5C and a rear tube 5D each comprising a metal circular tube are provided between front portions of the side frames 3Fa and between rear portions thereof, respectively, through respective sleeves 5A1, 5B1 in one direction. of seat width. Here, the seat frame 3F is assembled in a square frame shape in a plan view as a whole. A support spring (not shown) for resiliently and smoothly supporting a cushion liner (not shown) from the lower side is provided between the front tube 5C and the rear tube 5D. The cushion liner is assembled on an upper portion of the 3F seat frame.
The lateral frame 3Fa comprises a steel sheet die cut by pressing into an elongated plate shape in the front-rear direction. The side frame 3Fa is provided in a vertical manner so that its surface faces the seat width direction, and is configured such that an upper edge portion and a lower edge portion are folded toward a outer seat side. Its structural resistance to bending and torsion is thus increased.
The front panel 3Fb comprises a steel sheet die cut by pressing into an elongated plate shape in the seat width direction. The front panel 3Fb must be provided between the front end portions of respective side frames 3Fa so that its surface faces a height direction from an upper seat side. The front panel 3Fb is provided in a state such that tilt arms 6A connected to the right and left portions of the front panel 3Fb and extending rearward are provided on inner portions of respective side frames 3Fa so that the tilt arms 6A are rotatably connected by shaft by respective rotation shafts 6B placed in positions on the same axis and facing the seat width direction. The front panel 3Fb is thus configured such that an angle of an upper face portion which supports the femoral regions of the sitting occupant can be rotated about the rotation shafts 6B in the height direction.
The seat lifting device 5 is constituted by a pair of right and left parallelogram mechanisms comprising: a pair of right and left front linkages 5A; a pair of right and left rear links 5B; and the drive unit 5E configured to transmit a rotational driving force and a braking force for a up / down movement operation to the rear link 5B provided on the outer side in the width direction. of vehicle.
The front links 5A are placed in right and left positions offset and asymmetrical on the outer sides in the vehicle width direction relative to respective side frames 3Fa. An upper end of the front link 5A is assembled on its corresponding side frame 3Fa through a cylindrical sleeve 5A1 in a state where the upper end is rotatably connected by shaft, and a lower end is assembled on a upper part of its corresponding slide rail 4 via a connecting shaft 5A2 in a state where the lower end is rotatably connected to the shaft. The front tube 5C having a circular tube shape stepped so as to be reduced in diameter so that the two ends of the front tube 5C are fitted inside the cylindrical shapes of the sleeves 5A1 is assembled between the sleeves 5A1 in a state wherein the front tube 5C is inserted into the sleeves 5A1 from the inner side in the seat width direction and rotatably connected by shaft.
The rear links 5B are also placed in right and left positions offset and asymmetrical on the outer sides in the vehicle width direction relative to respective side frames 3Fa. An upper end of the rear link 5B is assembled on its corresponding side frame 3Fa through a cylindrical sleeve 5B1 in a state where the upper end is rotatably connected by shaft, and a lower end is assembled on a upper part of its corresponding slide rail 4 via a connecting shaft 5B2 in a state where the lower end is rotatably connected shaft. The rear tube 5D having a circular tube shape stepped so as to be reduced in diameter so that both ends of the rear tube 5D are mounted in cylindrical shapes of the sleeves 5B1 is assembled between the sleeves 5B1 in a state where the tube 5D is inserted into the sleeves 5B1 from the inner side in the seat width direction and therefore integrally connected. Thanks to the assembly, the rear links 5B can pivot in one piece through the rear tube 5D, and a structural resistance to bending and torsion is thus increased.
The drive unit 5E is connected, via the sleeve 5B1, to the rear link 5B placed on the outer side in the vehicle width direction. The drive unit 5E is configured to transmit a rotational driving force and a braking force to the rear link 5B. A main structure of the driving unit 5E is fixed to an outer portion of the side frame 3Fa provided on the outer side in the vehicle width direction. The main structure is, for example, a drive motor or equivalent of the drive unit 5E. The drive unit 5E is configured such that the main structure is connected in a manner to provide power transmission to the sleeve 5B1 connected in one piece to the rear link 5B on the outer side in the direction of vehicle width, in an inner position of the side frame 3Fa through a connection structure of a gear (not shown). A rotational driving force from the drive unit 5E is thus transmitted to the rear link 5B on the outer side in the vehicle width direction.
The seat lifting device 5 is actuated so that when the drive unit 5E is driven by operating a switch (not shown), its rotational force is transmitted to the rear link 5B on the side outside in the vehicle width direction, so that the rear links 5B and the front links 5Δ on both sides are actuated in a rotationally connected manner to a degree of freedom. In addition, when the operation of the switch (not shown) is not realized, the seat lift device 5 is maintained in a state where the movements of the rear links 5B and the front links 5A on both sides are all stopped by makes a braking force exerted by the drive unit 5E.
The front tilting mechanism 6 comprises: the tilt arms 6A connected to the right and left parts of the front panel 3Fb so as to extend towards the rear; the rotation shafts 6B shaftably connecting the respective rear ends of the tilt arms 6A to respective side frames 3Fa in a rotatable manner; a pair of straight and left bendable / stretched rods 6C each connected in a bonded manner between the front panel 3Fb and the front tube 5C; and a driving unit 6D configured to transmit a rotational driving force and a braking force for a bend / stretch operation to the bendable / stretched rod 6C provided on the outer side in the vehicle width direction .
[0045] A detailed illustration of bendable / stretched links 6C is omitted, but the front tube 5C is inserted into base end portions of the bendable / stretched links 6C and connected so that the links may be bent / stretched 6C can rotate in one piece through the front tube 5C. The driving unit 6D is fixed and connected to the side frame 3 Fa on the outside in the vehicle width direction, so that the driving unit 6D can transmit a driving force in rotation and a driving force. braking force to the bendable / stretched rod 6C provided on the same side.
The forward tilting mechanism 6 is actuated such that when the driving unit 6D is driven by actuating a switch (not shown), its rotational driving force is transmitted to the link which can be bent / stretched 6C on the outer side in the vehicle width direction, so that the bendable / stretched rods 6C on both sides perform a bend / stretch operation in one stroke. By the bending / stretching operation of the bendable / stretched rods 6C, the forward tilt mechanism 6 moves the front panel 3Fb upwardly / downwardly about the rotation shafts 6B relative to the front tube 5C. In addition, when the operation of the switch (not shown) is not realized, the forward tilting mechanism 6 is maintained in a state where the movements of the bendable / stretched rods 6C on both sides are stopped by one. only stroke by a braking force exerted by the driving unit 6D.
A fastening structure of the lap belt anchorage 10 on the rear link 5B on the outer side in the vehicle width direction will then be described. As illustrated in FIGS. 2, 3, the lap belt anchorage 10 is made of a steel sheet cut by press cutting in a generally plate-like manner.
As illustrated in FIGS. 3 and 6, once the waist belt anchor 10 is placed in a state where the waist belt anchor 10 makes a surface contact with a fastening face portion 5B3 formed generally in a central portion, in a link length direction, of the rear link 5B on the outer side in the vehicle width direction from the outside in the seat width direction, the lap belt anchorage 10 is fixed on the fixing face portion 5B3 of the rear link 5B by means of an insertion-type fixation structure 14 constituted by a bolt 14A and a nut 14B inserted in the lap belt anchorage 10 and the fixing face portion 5B3 of the a penetrating way. The lap belt anchorage 10 is thus fixed in one piece on the attachment face portion 5B3.
More specifically, the attachment face portion 5B3 of the rear link 5B is formed such that a generally central portion of the rear link 5B in the link length direction is folded relative to the two parts of the link. end 5B4 of the rear link 5B, so as to be partially extruded outwardly in the seat width direction. More specifically, the fixing face portion 5B3 has a shape folded so as to be diagonally extruded with respect to the two end portions 5B4 so that its outer surface thus extruded in the seat width direction faces a diagonally upper side of seat. Surfaces of the two end portions 5B4 face directly in the seat width direction.
With the configuration above, the rear link 5B is provided in a form in which a surface thereof faces the diagonally upper side of the seat in a position where the attachment face portion 5B3 on which the Ventral belt anchor 10 is fixed protruding outwardly with respect to the other parts (the two end portions 5B4) of the rear link 5B. Therefore, when attaching the lap belt 10 to the rear link 5B configured as described above, even in a state where the seat 1 is first assembled on the floor of the vehicle like this is illustrated in FIG. 2 and a space in the vehicle width direction between the rear link 5B and externally adjacent fastenings (central and equivalent amounts, not shown) of the vehicle is narrowed, a direction of attachment of the anchor The waist strap 10 with respect to the fastening face portion 5B3 is converted to an upper side, so that a working space for the fastening is enlarged so as to be open upwards. This is because the fixing face portion 5B3 of the rear link 5B is disposed to face a diagonally higher side. The fixing face portion 5B3 of the rear link 5B is a portion on which the lap belt anchorage 10 is to be attached.
The fixing face portion 5B3 of the rear link 5B has a round insertion hole 5B3a in which a bolt shaft portion mentioned below 14A is inserted, and a square retaining hole 5B3b on which a Hook portion 13 of the lap belt anchorage mentioned below is hung. The insertion hole 5B3a is formed generally in a central portion of the fixing face portion 5B3 in a penetrating manner, and the retaining hole 5B3b is formed in an edge thereof in a penetrating manner. The retaining hole 5B3b is formed in a shape having a hole width which allows the hook portion 13 of the lap belt anchorage mentioned hereinafter to be mounted by hooking the hook portion 13 therein. 5B3b retaining hole, thereby preventing lateral displacement of the hook portion 13 in the link length direction of the rear link 5B. Here, the retaining hole 5B3b is an example of a "recessed portion" of the present invention, and the hook portion 13 of the lap belt anchor mentioned hereinafter 10, hooked onto the retaining hole 5B3b, is an example of a "protrusion part" of the present invention.
At the same time, as illustrated in Figure 3, the lap belt anchor 10 is made from a steel sheet cut by die cutting generally in a generally pentagonal plate form. The lap belt anchorage 10 is formed in a shape having: an elongated through hole 11 through which a distal portion of the seat belt webbing (not shown) is passed for attachment thereto; a round insertion hole 12 in which a shaft portion of the bolt mentioned below 14A is inserted; and the hook portion 13 folded into a hook shape to be hooked within the retaining hole 5B3b of the rear link 5B described above.
[0052] The through hole 11 described above is formed in a long hole shape along an edge portion of one side of the ventral waist anchor 10 in a penetrating manner. An inner peripheral portion of the through hole 11 is coated with a resin film so as to prevent wear of the belt webbing passed through the through hole 11. The insertion hole 12 is formed to penetrate through a portion In general, as illustrated in Figures 4, 5, the insertion hole 12 is formed in a position on a perpendicular bisector of the through-hole 11 in an area on one side. opposite (a lower back side) of the opening hole 11 on one side (a front upper side) where the waist strap extends.
In addition, as shown in FIG. 3, the hook portion 13 is formed to be bent perpendicularly from a prolonged corner portion in a conical shape on an opposite side of the lap belt anchor 10. to a side where the through hole 11 is formed. More specifically, as illustrated in FIGS. 4, 5, the hook portion 13 is formed side by side with the aforementioned insertion hole 12 in the position on the perpendicular bisector of the through hole 11 in the area on the opposite side (the lower back side) of the opening hole 11 on the side (the upper front side) where the belt strap (not shown) extends.
As illustrated in FIG. 3, the lap belt anchorage 10 configured as described above is attached to the attachment face portion 5B3 of the above-mentioned rear link 5B since 1 '. outside as follows. First, the waistband anchor 10 is placed closer to the attachment face portion 5B3 of the back link 5B so that their respective plate shapes come into surface contact with each other. . The hook portion 13 is then mounted in the retaining hole 5B3b and the insertion holes 12, 5B3a are placed to be aligned with each other. Then, the shaft portion of the bolt 14A is inserted from the outside into the insertion holes 12, 5B3a thus aligned with each other, and is secured with the nut 14B on the other side. The lap belt anchorage 10 is thus brought into surface contact with the attachment face portion 5B3 of the rear link 5B in an axial direction (a plate thickness direction), so that they are firmly attached. and in one piece to each other. More specifically, since the hook portion 13 is configured to be hooked and mounted on the retainer hole 5B3b, the lap belt anchor 10 is firmly and integrally attached to the tie rod face portion 5B3. 5B in a state where a rotational movement around the shaft portion of the bolt 14A is stopped.
As illustrated in FIGS. 4, 5, the lap belt anchor 10 is attached to the attachment face portion 5B3 of the rear link 5B as described above, so that the ventral waist anchor 10 is assembled in a state where the through hole 11 through which the belt webbing (not shown) is passed protrudes from the attachment face portion 5B3 of the rear link 5B in one direction (the upper side front) where the waist strap extends. Thus, the waist strap passed through the through hole 11 of the waistbelt anchor 10 is provided so as not to interfere with the back link 5B.
As illustrated in FIGS. 4, 5, in the hip belt anchor 10 secured to the attachment face portion 5B3 of the rear link 5B as described above, a movable range of the Rear link 5B with the upward / downward movement of the seat lift device 5 is in a range where a rear position is maintained. Therefore, the through hole 11 through which the belt strap (not shown) is passed is normally maintained in a state where the through hole 11 protrudes from the attachment face portion 5B3 of the rear link 5B in the direction (the front upper side) where the belt strap extends. At the time when the lap belt anchor 10 receives a heavy load input from the belt webbing (not shown) passed through the through hole 11 with a front or equivalent collision of the vehicle, the lap belt anchor 10 strongly receives the load due to a support by the rear link 5B on which the hip belt anchor 10 is fixed.
[0057] More particularly, the ventral waist anchor 10 can strongly receive, relatively directly from the rear lower side, an interaction of a tension force transmitted to an inner peripheral portion of the through hole 11 from the shoulder strap.
belt (not shown), due to the insertion-type fastening structure 14 (the fastening structure by the bolt 14A and the nut 14B) placed on a rear side (the rear lower side) with respect to the through hole 11 and a retaining structure of the hook portion 13 with respect to the retaining hole 5B3b. In addition, the back link 5B which supports the lap belt anchorage 10 is connected to the drive unit 5E configured to transmit a rotational driving force for a up / down movement operation and a braking force at the rear link 5B. This makes it possible to receive strongly the interaction of the tension force received from the belt strap, with a braking force exerted by the drive unit 5E.
When the above description is summarized, the seat 1 of the present embodiment has the following configuration. That is, the seat 1 of the present embodiment is a vehicle seat (the seat 1) comprising the seat lift device 5 configured to adjust a height of the seat cushion 3 with respect to the vehicle body (the floor). The seat lift device 5 is configured to adjust the height of the seat seat 3 by a rotational movement of a link (the rear link 5B on the outside in the vehicle width direction) which connects the seat seat. seat seat 3 to a base (the slide rail 4) on the vehicle body (the floor). A fastening (lap belt seam 10) of the seat belt is secured to the link (the rear link 5B on the outer side in the vehicle width direction). With such a configuration, the fastening (lap belt seam 10) of the seat belt can be moved according to the height adjustment of the seat seat 3 with a rotational movement of the link (the rear linkage). 5B from the outside in the vehicle width direction).
In addition, the link (the rear link 5B on the outer side in the vehicle width direction) is connected to the outer part of the side frame 3Fa of the seat seat 3, and the attachment (the anchor waistband 10) is fixed on the outer portion of the link (the rear link 5B on the outer side in the vehicle width direction). With such a configuration, the fastening (lap belt seam 10) of the seat belt may be attached to the link (the rear link 5B on the outside in the vehicle width direction) so as not to interfere with the side frame 3Fa of the seat cushion 3. This therefore makes it possible to prevent the rotational movement of the link (the rear link 5B on the outside in the vehicle width direction) to be disturbed.
In addition, the fastener (ventral waist anchor 10) is configured to be attached to the fastening face portion 5B3 so as to be fixed thereto. The fixing face portion 5B3 is formed in the link (the rear link 5B on the outside in the vehicle width direction) so that its surface faces the diagonally higher side. Since the attachment face portion 5B3 to which the fastener (the waist strap anchor 10) is to be attached is provided to face the diagonally upper side in this manner, a fastener attachment direction (anchor waistband 10) on the attachment face portion 5B3 is converted to an upper side. Therefore, even in a configuration in which a securing space from a lateral side is small, it is possible to enlarge the fastening space so as to be open upwards.
Furthermore, the fixing face portion 5B3 is formed to protrude partially outwardly of the link (the rear link 5B on the outer side in the vehicle width direction). Since the attachment face portion 5B3 on which the attachment (the lap belt seam 10) of the link (the rear link 5B on the outer side in the vehicle width direction) is fixed is configured to partially exceed outwardly, it becomes difficult for the attachment (lap belt 10) to interfere with the other parts (the two end portions 5B4 and the like) of the link (the rear link 5B on the outer side). in the vehicle width direction) at the time the fastener (lap belt anchor 10) is attached. As a result, the attachment (lap belt anchorage 10) can more easily be secured to the link (the rear link 5B on the outside in the vehicle width direction).
In addition, the attachment (the lap belt anchor 10) is attached to an intermediate portion (the attachment face portion 5B3), in the rod length direction, of the link (the rear link 5B on the outer side in the vehicle width direction). With such a configuration, it is possible to fix a wide space in which the attachment (the lap belt anchorage 10) can be fixed on the link (the rear link 5B on the outside in the vehicle width direction), compared to a configuration in which the attachment (the lap belt anchor 10) is attached to a connecting end portion (the two end portions 5B4) of the link (the rear link 5B on the outer side in the vehicle width direction) relative to another element.
In addition, the attachment (lap belt anchorage 10) is attached to the link (the rear link 5B on the outside in the vehicle width direction) in a state where a tilt rotation about the 14A bolt shaft is restricted. With such a configuration, it is possible to limit a seatbelt disposition direction extending from the attachment (lap belt anchorage 10) within a given range.
More specifically, in a state where a protrusion portion (the hook portion 13) formed in the fastener (the lap belt anchor 10) is mounted in a recessed portion (the retaining hole 5B3b) formed in the link (the rear link 5B on the outside in the vehicle width direction), the attachment (the lap belt anchorage 10) is fixed in one piece on the link (the rear link 5B on the outer side in the vehicle width direction) by virtue of the fastening structure 14 inserted in the binding (the lap belt anchorage 10) and the link (the rear link 5B on the outside in the vehicle width direction) of a penetrating way. With such a configuration, the attachment (lap belt anchorage 10) can be firmly and integrally attached to the link (the rear link 5B on the outside in the vehicle width direction) without welding.
It should be noted that the limitation of the tilting rotation of the ventral waist anchor 10 by the fitting between the projection part (the hook part 13) and the recessed part (the retention hole 5B3b) can be formed by forming the recessed portion (the retaining hole 5B3b) with a width greater than the protrusion portion (the hook portion 13) in a direction of rotation, so as to allow the tilting rotation of the anchor lap belt 10 in a given range.
In addition, the seat lifting device 5 comprises: the parallelogram mechanisms in which the seat seat 3 is connected to the base by a pair of right and left rods on the front side (the front links 5A) and a pair of right and left links on the rear side (the rear links 5B); and the drive unit 5E configured to transmit a rotational force and a braking force to any link (the rear link 5B on the outside in the vehicle width direction) among the links constituting the drive mechanisms. parallelogram. The link (the rear link 5B on the outer side in the vehicle width direction) on which the attachment (the lap belt anchorage 10) is attached is configured to receive a braking force transmitted from the transmission unit. 5E training. With such a configuration, when a large load which causes a significant body pressure of the seated occupant has entered the safety belt, it is possible to stably receive the load in a fixed position without rotating, due to this load inlet, the link (the rear link 5B on the outside in the vehicle width direction) on which the attachment (the lap belt anchorage 10) is fixed.
A configuration of a seat 1 (a vehicle seat) of the second embodiment will be described with reference to Fig. 7. In the present embodiment, a fixing face portion 5B3 (a portion intermediate in a link length direction) of a rear link 5B (a link) on the outer side in the vehicle width direction is provided with protruding projections 5B3c so that the protrusions 5B3c abut against a ventral waist anchor 10 (a fastener) attached to the fastening face portion 5B3 from both sides in a direction of rotation. With a configuration in which the protrusions 5B3c abut against the waistbelt anchor 10 on both sides in the direction of rotation, the waistbelt anchor 10 is integrally attached to the rear link 5B in a state where a Tilt rotation around a 14A bolt shaft is limited.
[0068] It should be noted that the limitation of the tilting rotation of the ventral waist anchor 10 by the projections 5B3c can be achieved with spaces between the ventral waist anchor 10 and the respective projections 5B3c in the direction of the lap. rotation, so as to allow tilting rotation of the lap belt anchor 10 within a given range. In addition, the projections 5B3c may be provided such that an extension portion is formed to extend radially from the waist belt anchor 10, such as the hook portion 13 extending radially from the waist. ventral waist anchor 10 in the first embodiment, such that the projections 5B3c abut the extension portion of both sides in the direction of rotation (including a case where the projections 5B3c are provided with given spaces) . Moreover, apart from the configuration in which the projections 5B3c have an integrated structure in which the projections 5B3c are formed to be forced from the ventral waist anchor 10 in the plate thickness direction (the axial direction) the projections 5B3c may have a separate structure in which the projections 5B3c are press-fitted, crimped, or welded on the hip belt anchor 10 in the axial direction so as to be fixed thereto. The other configurations are the same as those of the seat 1 described in the first embodiment, so that the same reference signs are assigned to them and their descriptions are omitted.
Embodiments of the present invention have been described above with reference to two embodiments, but the present invention may be implemented in different embodiments other than the above embodiments. For example, the "vehicle seat" of the present invention is applicable to seats other than the right seat of the automobile. In addition, the vehicle seat of the present invention is widely applicable to seats used in a vehicle other than the automobile, such as a train, and to other vehicles such as an aircraft, a boat, and the like. .
In addition, the seat lift device can adjust the height of the seat seat by a rod movement of a said pantograph mechanism assembled in an X shape. In addition, the structure wherein the fastening of the seat belt is fixed to the link constituting the seat lifter is not limited to the lap belt anchor shown in the above embodiments, but may be applied to a buckle equipped with a tongue plate passed through the belt strap. In addition, like the configuration disclosed in JP 2015-067135 A, and the like, the seat lifter can be configured to be manually moved up / down by an up / down operation. bottom of an actuating lever.
In addition, the attachment may not necessarily be fixed on the link in one piece, but can be fixed in a state where the attachment is rotatably connected by a pin. In addition, the fastener may be attached to the link by means such as welding or crimping, other than the insertion type fastening structure. Furthermore, the attachment may be a fastener attached to the link with direct contact, or may be indirectly attached to the link via another element such as a carrier without direct contact. In addition, the attachment may be attached to the intermediate portion of the link in the link length direction, or may be attached to an end portion of the link.
Furthermore, the fastening face portion of the rod, on which the attachment is fixed, may not necessarily be formed so that its surface is partially opposite the diagonally upper side from the link, but can be formed so that the surface is directly facing in the width direction as the other parts or may be formed to flush with the other parts. In addition, in a case where the attachment face portion is formed such that the surface partially faces the diagonally upper side from the link, the attachment face portion may be formed such that the surface faces the diagonally upper side in a position where the attachment face portion protrudes outwardly from the link, or may be formed such that the surface faces the upper side in a position where the attachment face portion is pulled towards Inside from the link.
In addition, in terms of configuration for securing the attachment to the link, the configuration in which the protrusion portion formed in the fixture is mounted in the recessed portion formed in the link may be formed not in the respective edges of the link. the fastener and the link, but in respective central parts thereof. In addition, the recessed portion may be formed in the attachment, and the protrusion portion may be formed in the link. In addition, the recessed portion may not be a penetrating hole through the fastener or the like, but may be a recess.

权利要求:
Claims (9)
[1" id="c-fr-0001]
Vehicle seat characterized in that it comprises: a seat cushion (3); a base (4) mounted on a vehicle body; a seat lifter (5) configured to adjust a height of the seat seat (3) by a rotational movement of a link (5B) connecting the seat seat (3) to the seat (4); ); and a fastening (10) of a safety belt, the fastening being fixed on the link (5B).
[2" id="c-fr-0002]
Vehicle seat according to claim 1, characterized in that the connecting rod (5B) is connected to an outer part of a side frame (3Fa) of the seat cushion (3); and the attachment (10) is fixed on an outer portion of the link (5B).
[3" id="c-fr-0003]
Vehicle seat according to claim 1 or 2, characterized in that the fastener (10) is arranged on a fixing face portion (5B3) so as to be fastened to the fastening face portion, the front portion fastening means (5B3) being formed in the link (5B) so that a surface of the fastening face portion (5B3) is oriented towards a diagonally higher side.
[4" id="c-fr-0004]
A vehicle seat according to claim 3, characterized in that the fastening face portion (5B3) is formed to protrude partially outwardly of the link (5B).
[5" id="c-fr-0005]
A vehicle seat according to any one of claims 1 to 4, characterized in that the attachment (10) is attached to an intermediate portion of the link (5B) in a link length direction (5B).
[6" id="c-fr-0006]
The vehicle seat according to any one of claims 1 to 5, characterized in that the fastener (10) is fastened to the link (5B) in a state where tilt rotation is restricted.
[7" id="c-fr-0007]
Vehicle seat according to claim 6, characterized in that the fastener (10) is fastened in one piece on the connecting rod (5B) by a fastening structure inserted into the fastener (10) and the connecting rod (5B). in a penetrating manner in a state where a protrusion portion (13) formed in the fastener (10) is inserted into a recessed portion (5B3b) formed in the link (5B).
[8" id="c-fr-0008]
8. Vehicle seat according to claim 6, characterized in that the link (5B) is provided with projections (5B3c) which abut against the attachment (10) on both sides in a direction of rotation.
[9" id="c-fr-0009]
The vehicle seat according to any one of claims 1 to 8, characterized in that the seat lifter (5) comprises parallelogram mechanisms configured to connect the seat cushion (3) to the base (4). ) by a pair of right and left links on the front side (5Ά) and a pair of right and left links on the rear side (5B), and a drive unit (5E) configured to transmit a rotational force and a force braking at any of the links constituting the parallelogram mechanisms; and the link on which the attachment (10) is attached receives a braking force transmitted from the drive unit (5E).

类似技术:

公开号 | 公开日 | 专利标题

FR3043027B1|2019-07-12|VEHICLE SEAT

EP0363261B1|1993-04-21|Reinforced frame for a vehicle seat

FR2733945A1|1996-11-15|Frame for seat back of automobile rear seats

EP0720930A1|1996-07-10|Hinge mechanism for vehicle seats and vehicle seat equipped with such a hinge

EP0756962A1|1997-02-05|Backrest frame for vehicle seat

FR2895334A1|2007-06-29|Car seat has lower pair of arms attached to seat cushion and second pair of arms attached to backrest which are linked by pivot and connector plate, through which transverse tube passes which supports downward forces

FR2806675A1|2001-09-28|Seat for vehicles with an heightening mechanism has pinion rotating in a rigid casing made of two rigid flanges linked by a rod at one end and having a rod at the other end passing through an opening of the rack

FR2775448A1|1999-09-03|Car seat base for seats adjustable in height

FR2638404A1|1990-05-04|Vehicle seat with mechanism for inclining the backrest

EP0718147A1|1996-06-26|Seat part frame for vehicle seats

EP2586648B1|2015-04-08|System comprising an automobile seat rail and a mounting intended for being attached thereto, and method for manufacturing such a system

EP0522939B1|1995-01-25|Linear actuator, having one roller, for locking two interconnected elements

EP1552994B1|2006-11-15|Releasable device for fixing two mechanical parts, vehicle apparatus with such a device and a corresponding vehicle with such an arrangement

FR2815584A1|2002-04-26|Vehicle seat has sliding unit which receives tensile load acting on safety belt buckle, displaced into slot in side frame of bottom rail

EP0367665A1|1990-05-09|Manual seat belt holder position adjuster

EP0543706B1|1995-02-01|Device for automatically coupling a safety belt anchorage to a vehicle floor

FR2660376A1|1991-10-04|Support lug

EP0933249A1|1999-08-04|Dismountable articulation device, seat structure, seat and vehicle therewith

FR2901192A1|2007-11-23|Seat`s front/rear slide for motor vehicle, has lock comprising projecting teeth leaving through slits arranged on one of slide elements and coming in contact with another slide element during impact, and security device locking slide

EP1750981B1|2008-11-05|Motor vehicle safety belt fastening buckle attachment device and seat provided therewith

FR2990168A1|2013-11-08|SEAT, IN PARTICULAR FOR MOTOR VEHICLE

EP1547858A1|2005-06-29|Armrest for a motor vehicle seat, console and seat therewith

FR2630378A1|1989-10-27|SEAT WITH ADJUSTABLE AND FOLDING BACK

FR3071201B1|2019-09-13|CENTRAL PILLAR ARMREST

EP1491431B1|2007-11-21|Vehicle cab with variable driver's seat

同族专利:

公开号 | 公开日

US20170120778A1|2017-05-04|

DE102016221149A1|2017-05-04|

US10207601B2|2019-02-19|

CN106994918A|2017-08-01|

CN106994918B|2020-06-23|

JP2017087805A|2017-05-25|

FR3043027B1|2019-07-12|

JP6262185B2|2018-01-17|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

DE3777948D1|1986-10-29|1992-05-07|Hammerstein Gmbh C Rob|VEHICLE SEAT WITH A LENGTH GUIDE, WITH A HEIGHT OR ANGLE ADJUSTMENT AND WITH A BELT FASTENING.|

US4906023A|1989-02-21|1990-03-06|Seats, Inc.|Slotted link seat belt inter-connecting point link|

JP2874335B2|1990-11-30|1999-03-24|アイシン精機株式会社|Automotive seating equipment|

DE4240250C2|1992-11-25|2000-11-30|Brose Fahrzeugteile|Belt buckle lock|

DE29814223U1|1998-02-27|1998-11-19|Hammerstein Gmbh C Rob|Seat support frame of a vehicle seat with a left and a right front adjusting arm|

JP2001213273A|2000-02-04|2001-08-07|Oi Seisakusho Co Ltd|Anchor structure of seat belt|

JP2004352135A|2003-05-30|2004-12-16|T S Tec Kk|Vehicular seat|

DE102005004660A1|2004-07-02|2006-02-02|C. Rob. Hammerstein Gmbh & Co. Kg|Motor vehicle seat with a Längsverstellvorrichtung with a seat support and rear wings|

EP1813465B1|2006-01-31|2012-01-04|FUJI KIKO Co., Ltd.|Belt-in seat with lifter|

JP6266237B2|2013-06-20|2018-01-24|トヨタ紡織株式会社|Vehicle seat|

JP6196113B2|2013-09-30|2017-09-13|トヨタ紡織株式会社|Vehicle seat frame|

WO2015087401A1|2013-12-10|2015-06-18|日本発條株式会社|Vehicular seat|EP3122592B1|2014-03-25|2020-07-15|CVG Management Corporation|Seat tilt control mechanism|

WO2018020836A1|2016-07-28|2018-02-01|株式会社タチエス|Vehicle seat|

JP6680159B2|2016-09-16|2020-04-15|トヨタ紡織株式会社|Vehicle seat|

IT201900008229A1|2019-06-06|2020-12-06|Aviointeriors S P A|Support element for a seat, assembly comprising at least one seat provided with said support element and method for making said support element.|

法律状态:
2017-10-17| PLFP| Fee payment|Year of fee payment: 2 |

2018-05-11| PLSC| Publication of the preliminary search report|Effective date: 20180511 |

2018-10-23| PLFP| Fee payment|Year of fee payment: 3 |

2019-10-09| PLFP| Fee payment|Year of fee payment: 4 |

2020-10-13| PLFP| Fee payment|Year of fee payment: 5 |

2021-10-18| PLFP| Fee payment|Year of fee payment: 6 |

优先权:

申请号 | 申请日 | 专利标题

JP2015-216743|2015-11-04|

JP2015216743A|JP6262185B2|2015-11-04|2015-11-04|Vehicle seat|

[返回顶部]