• 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:
    Spring device (16) for biasing a pedal (10) and having a first spring (20) and a second spring (22) which contract in the axial direction, and are housed in a housing (18) and an element support (28) on which the springs having an inner member (32) with a bearing surface for the lever of the pedal (14) and an outer member (34) guided in the housing (18) and in which slides the inner member to an abutment position. Before the stop position, the inner member (32) transmits only the force of the first spring (20) and in the abutment position it further transmits the force of the second spring (22).
    公开号:FR3031781A1
    申请号:FR1650310
    申请日:2016-01-15
    公开日:2016-07-22
    发明作者:Milos Hlavka
    申请人:Robert Bosch GmbH；
    IPC主号:
    专利说明:

    [0001] Field of the Invention The present invention relates to a spring device for biasing a pedal and having: a first spring member which contracts in the axial direction and a second spring member which contracts in the axial direction, these two spring elements being housed one inside the other, a housing receiving the first spring element and the second spring element in that the first spring element and the second spring element bear against a first end, a bearing element on which the first spring element and the second spring element are supported by an opposite second end, which transmits the force developed by the spring device to the lever of the pedal. STATE OF THE ART The pedals fitted on vehicles such as the clutch pedal or the accelerator pedal serve to control certain functions of the vehicle. These pedals generally have a spring device that exerts an opposite force (reaction) to the force exerted by the driver on the pedal to return the pedal in the rest position. In the case of the accelerator pedal which controls for example the fuel supply to the internal combustion engine or the power delivered by an electric motor, it is generally advantageous for the curve of the pedal force to have a positive effect. hysteresis, that is to say that, for example, the opposite force that must be overcome to drive the pedal is greater than the force that is exerted when releasing the pedal for the return stroke. It may also be advantageous to end the pedal stroke, when the pedal is fully depressed, the antagonistic force increases sharply, which is called overspeed or "kickdown". DE 10 2010 027 924 A1 describes a pedal comprising a spring device in which an electromagnet generates the hysteresis applied to the spring force as a function of the stroke. The overspeed or kickdown force is generated by a snap-in spring and a stop. DESCRIPTION AND ADVANTAGES OF THE INVENTION The present invention relates to a pedal return spring device of the type defined above, characterized in that the support element has an inner element having a support surface for the lever. pedal and an outer member guided in the housing and in which the inner member slides to an abutment position, the inner member having a first bearing surface for the first spring member and the outer member having a second bearing surface for the second spring element so that before the stop position, the inner member transmits only the force of the first spring element to the pedal lever and in the stop position and it transmits in addition the force second spring element on the pedal lever. Thus, in general, the invention relates to a pedal return spring device such as, for example, the clutch pedal for an electric clutch or the accelerator pedal controlling the power supplied by a motor. internal combustion, an electric motor or a hybrid drive. The spring device according to the invention comprises a first spring element which contracts in the axial direction and a second spring element which also contracts in the radial direction, these two spring elements housed in one another being received in a box. The first and second spring members are supported by one end in the housing. The housing is for example in the form of pot and the spring elements are helical springs interlocked into each other and leaning against the bottom of the pot shape of the housing. The spring device comprises a support member receiving the first spring element and the second spring element at their second end or spring end opposite their first end, for transmitting the force generated by the spring device to the spring element. pedal lever. The support member may be depressed by the pedal lever within the housing to compress (contract) the spring members. The bearing member has an inner member having a bearing surface for the pedal lever and an outer member guided in the housing and wherein the inner member slides to the stop position. The inner member constitutes the first bearing surface for the first spring member and the outer member constitutes the second bearing surface for the second spring member so that the inner member transmits only the force developed by the first spring member. spring element to the pedal lever before the stop position and in the stop position, the force of the second spring element is further transmitted to the pedal lever. In other words, the support element consists of two elements sliding relative to each other in the radial direction and each serves as a particular support for a spring element. For example, when the support member is pushed into the housing by the pedal lever, when the inner member does not abut against the outer member, it generates a different force than when the inner member is pushed. in stop position. It is thus possible to adjust and modify the characteristics of the stroke of the force exerted on the pedal. According to a development of the invention, the inner member protrudes from the outer member and has a groove in its peripheral direction receiving the ring of the outer member which penetrates radially therein and slides therein in the axial direction until at the stop position. The outer member has a central opening through which the inner member passes. At least one or both side walls of the groove serve as an abutment surface receiving the ring. The ring only partially surrounds the inner element, that is to say that the ring has an interrupted shape. When the inner member is depressed into the housing, the ring comes to the inner member (i.e., abutting position) and / or is applied to the inner member when it is disengaged again the housing under the effect of the first and / or second spring element. According to a development of the invention, the outer element generates on the inside of the housing, a friction force by the movement of the support element in the housing. For example, the outer member has on its outer side a friction surface that slides on the inner side of the housing. The outer diameter of the friction element remains substantially constant until the stop position and the friction element is not yet driven by the inner member. After the first spring element comes into contact with the stop lever, under the action of the pedal lever, that is to say once the inner element reaches the stop position, the diameter of the outer member increases so that the friction surface is pressed more strongly against the inner side of the housing and thus increases the frictional force. Expansion of the first and / or second spring member, i.e., when the force exerted by the pedal lever on the bearing member decreases and the first spring member moves the element away inside its abutment position, the diameter of the outer element decreases and the friction force decreases. Overall, the force generated by the spring device has a hysteresis that is to say that at the same point of the travel of the pedal lever, the depression of the support element in the housing, the force is larger than when the bearing element always returns pushed by the spring device.
    [0002] The operation of the device thus corresponds to two different states: in the first state, the pedal lever acts only on the inner element and thus works only with the force developed by the first spring element. When reaching the stop position, one arrives in the second state. After contraction of the first spring element to the stop position by the pedal lever, the outer element then undergoes two effects. On the one hand, the movement of the inner member under the effect of the thrust exerted on the pedal which drives the friction element by the abutment surface, that is to say that the friction element begins to move as the inner element in the housing. The pedal lever must then exert a force against that developed by the spring elements and also a force against the frictional force of the friction element applied against the inner side of the housing. Secondly, the inner member and the friction member are made such that movement of the inner member relative to the outer member enlarges the diameter of the outer member so that the friction surface is pushed further. strongly against the inside of the case, which increases the friction force. The constructive realization of the friction element and the inner element makes it possible, in combination with the choice of the spring force, to have a targeted and finely adapted hysteresis curve. The device according to the invention makes it possible, for example, to generate a hysteresis whose starting point (for example the idling position) of the pedal corresponds to a first force in a range between 7N and 23N, and preferably a range between 12N and 18N and that to reach the point of maximum load, it is necessary to exert a second force in a range between 37N and 65N and preferably between 45N and 55N. By releasing the pedal, one can then maintain the maximum point of load for example with a third force in a range between 25N and 40N, preferably between 30N and 38N; when reaching the idle point, it will be sufficient to exert a fourth force, for example in a range between 3N and 18N and preferably between 8N and 12N. This hysteresis, that is to say the four end points but also the force curve between these end points, simply adapt according to the invention to the specifications set by the customer. This makes it possible to obtain the hysteresis characteristic of the spring device by simple mechanical components. In addition, the hysteresis curve, that is to say the differential force in the direction of displacement and / or the non-linear function with respect to the stroke, will be regulated by appropriate adaptation of the axial contour of the inner surface. of the case.
    [0003] In addition, all the friction surfaces that generate the complementary force to have the hysteresis are housed in a relatively compact housing. According to a development of the invention, the outer member is substantially annular in shape and has a longitudinal slot allowing the diameter variation of the outer member even if the outer member is made of a relatively rigid material, the enlargement and the reduction of the slot with deformation of the outer member by its side opposite the slot allow to increase or decrease the diameter of the outer member. The slot can also cross the ring. According to a development of the invention, the outer element is sufficiently elastic to automatically oppose the increase in its diameter. For example, the outer member or the point opposite the slot returns to the initial position when the inner member is no longer removed. According to a development of the invention, the inner member has a first wedge-shaped surface resting on a second wedge-shaped surface of the outer member so that the thrust by the pedal lever on the element Inside opens by the first wedge-shaped surface, the outer element by its second wedge-shaped surface. In other words, as the bearing member moves inwardly, the first wedge-shaped surface acts on the second wedge-shaped surface and opens the bearing element so that the force of the wedge outer element on the inner wall of the housing increases; this consequently increases the friction force between the outer element and the housing. When the support member disengages and slides out of the outer member, its diameter may decrease and the force exerted by the outer member on the inner wall of the housing decreases so that the frictional force between the outer member and the housing decreases. The movement of the inner member disengaging from the outer member is supported by the first spring member. In the (first) stop position of the inner member and the outer member, the two wedge-shaped surfaces touch each other. It should be noted that the inner member and the outer member may come into another second abutment position (in this position the inner member has slid as far as possible out of the first abutment position with respect to the outer member) and in this position the inner member and the outer member can be touched by other abutment surfaces. According to a development of the invention, the first wedge-shaped surface is outwardly oriented with respect to the axis of the spring device and the second wedge-shaped surface is turned inwardly. The first wedge-shaped surface and the second wedge-shaped surface may also at least partially surround the axis of the spring device in an annular shape. According to another feature, the first wedge-shaped surface and the second wedge-shaped surface have different cross-sectional dimensions, each wedge-shaped surface having, at its axial end, a diameter passing through the symmetry and perpendicular to this axis. The inclined shape of the wedge-shaped surface has, at one end of this surface, a diameter smaller than that of the opposite end. The smallest diameter of a wedge-shaped surface may be called "inside diameter" and the larger diameter, "outside diameter". The different wedge-shaped surfaces can then make that, for example, the axial distance between the inner diameter and the outer diameter of the second wedge-shaped surface is much smaller than the corresponding distance from the first shaped surface. wedge (or conversely, the axial distance between the inner diameter and outer diameter of the first wedge-shaped surface will be much smaller than the corresponding distance from the second wedge-shaped surface). This axial distance will also be small enough that the second wedge-shaped surface is substantially linear (and vice versa for the first wedge-shaped surface). In other words, one can also have a wedge-shaped surface that has only a linear contact, that is to say which, in section, appears as a point contact with the other wedge-shaped surface. Thanks to the various embodiments of the corner surfaces, the desired profile for the hysteresis is targeted. According to a development of the invention, the wedge-shaped surface of the outer element is on a ring which has opposite an abutment surface for the inner element. The ring may for example enter a groove of the inner member and / or serve to guide the inner member in the outer member. Thus, the outer element will be particularly compact and compact construction.
    [0004] According to a development of the invention, the inner member enters the first spring member to stabilize it. This first spring element is a coil spring installed on the stud whose base is surrounded by the first bearing surface. Advantageously, thus facilitating the assembly of the device because the spring element will be guided in this manner by the stud and will be stabilized in the radial direction. In operation, in this way the lateral deformation of the spring is avoided, which increases the reliability and the service life. According to one embodiment, the second spring element is a helical spring. According to a development, the subject of the invention is a spring device with an overspeed spring which protrudes laterally from the bearing element and which passes axially over the spring elements; in the overspeed position, this overspeed spring abuts against an inner edge of the housing and from this overspeed position, the spring produces an additional force applied to the pedal lever. When the support element is loaded by the pedal lever, it depresses the support element in the housing and thus contracts the spring device inside the housing generating the main component of the opposing force exerted on the pedal lever. For a certain stroke of the overspeed position, the mechanical overspeed spring which passes laterally next to the spring device inside the casing abuts with one end against the inner edge, which contracts it further so that from the overspeed position, the force exerted on the pedal lever increases.
    [0005] Thus, with simple mechanical means, an overspeed force is generated. The overspeed spring and the spring elements are housed in the same housing (pot-shaped housing), which saves additional components for the housing.
    [0006] According to a development of the invention, the overspeed spring is composed of at least one leaf spring having at least one resilient tongue or spring tongue passing next to the spring elements. The leaf spring supported by one end in the bearing member is bent about 90 ° to form the resilient tongue which is substantially parallel to the inner surface of the housing by passing the spring device. According to a development of the invention, the leaf spring has two opposite spring tongues protruding laterally from the bearing element. These two elastic tongues arrive from the overspeed position, symmetrically on the opposite inner edges, which prevents seizing during operation. In addition, the two elastic tongues also constitute a redundant means in case of breakage of one of the tongues. The operation does not stop then abruptly and there remains the other elastic tongue which continues to function. This characteristic is important for the operational safety of the vehicle. According to a development of the invention, at least one elastic tongue has a spoon-shaped end bent in the direction away from the inner wall of the housing, that is to say facing inwards, towards the axis. The inner edge may also have a corresponding curvature so that, advantageously, the spring end is not likely to seize in the housing. According to a development of the invention, the housing has at least one lateral channel in which the overspeed spring (i.e., the elastic tabs of the overspeed spring) moves and next to the channel the housing has internal friction surfaces on which the inner element slides. According to a development of the invention, a friction-enhancing material is installed between the inner friction surface of the housing and the outer friction surface of the friction element. This material is for example Santoprene © applied to the housing or the friction element. According to a development of the invention, the end of the side channel is provided with the inner edge against which abuts the overspeed spring in the overspeed position. According to another development, the subject of the invention is a pedal, for example a clutch pedal or an accelerator pedal. This pedal comprises a lever pivoting about an axis and a spring device generating a variable opposing force exerted on the pedal lever as described above. This pedal is manufactured in a simple and economical way, generates an antagonistic force with hysteresis and / or overspeed characteristic. Drawings The present invention will be described in more detail below with the aid of examples of pedal return spring devices shown in the accompanying drawings in which: FIG. 1 is a very diagrammatic view of an embodiment of a pedal according to the invention, Figure 2 is a longitudinal sectional view of an embodiment of the spring device according to the invention, Figure 3 is a sectional view of components of the spring device of Figure 2, FIG. 4 is an exploded view of the components of FIG. 3, FIG. 5 is a perspective view of the components of the spring device of FIG. 2, FIG. 6 is a schematic sectional view of an embodiment. of the spring device according to the invention. DESCRIPTION OF EMBODIMENTS OF THE INVENTION FIG. 1 shows a pedal 10 such as an accelerator or clutch pedal that the driver actuates with his foot to push it from his rest position to his position. end position. The driver thus actuates the foot support 12 which pivots the pedal lever 14 about an axis. The spring device 16 produces a force opposite to the force developed by the driver and tends to return the pedal 10 in the rest position. The spring device 16 described hereinafter generates a different opposing force in a purely mechanical manner. FIG. 2 is a longitudinal or axial section of a spring device 16 having a pot-shaped housing 18 housing two spring elements in the form of helical springs 20, 22 pressing against one end 24 of the housing 18, that is, at the bottom of the pot-shaped housing. The inner coil spring 20 or first spring member 20 is slightly longer than the outer coil spring 22 or second spring member 22; the end 24 of the housing 18 thus has two bearing surfaces 26 spaced axially and each receiving a spring 20, 22. A bearing element 28 at the other end 30 of the housing is guided by the inner walls of the housing 18; this support element consists of an inner element 32 and an outer element 34. The inner element 32 passes through the opening of the outer element 34 by sliding in the axial direction in the outer element 34. inner coil spring or first spring member 20 is supported on the first bearing surface 40 of the inner member 32; the second coil spring 22 or second spring member 22 is supported on the second bearing surface 41 of the outer member 34. The inner member 32 has a groove 46 into which the ring 48 of the outer member penetrates. A side wall of the groove constitutes a bearing surface 49 on the side of the pedal lever 14 against which the outer element 34 can be supported by the ring 48 when the pedal lever 14 is released (movement from the state contracted in the expanded state). When the bearing surface 49 rests on the ring 48, the inner member 32 with the inner spring 20 bears against the abutment surface 49 of the outer member 34, which ensures that the outer member 34 can always come out of the housing 18 as soon as the pedal lever 14 is released. Thus, for example, as a result of seizing in the housing, the outer element 34 remains hooked in its upper position according to FIG. 2 under the effect of the tension exerted by the outer coil spring 22 and that, subsequently, The outer element then comes off abruptly from the housing 18. Such an operation could have a negative effect on the perception of the behavior by the user. The outer member 34 has a substantially cylindrical outer surface 36 sliding on the inner side 38 of the housing 18.
    [0007] The ring 48 of the outer member 34 has a second annular wedge-shaped surface 42 inclined in the axial direction and turned inwardly. This second wedge-shaped surface slides on the first wedge-shaped annular surface 44 of the inner member 32. The second wedge-shaped surface 42 may be of curved section as shown in FIG. 3. The first shaped surface corner 44 is straight and facing outward. Similarly, the two wedge-shaped surfaces 42, 44 may have a curved section or the two wedge-shaped surfaces 42, 44 may be straight or the second wedge-shaped surface 42 may be straight and the first surface wedge shaped 44 curve. If at least one of the two wedge-shaped surfaces has a curved section, it is advantageous to avoid snagging. When the pedal lever 14 presses on the support element 28, the inner element 32 and the outer element 34 slide first to a first abutment position, relative to each other so that only the coil spring 20, i.e., the first spring member 20 will be contracted (compressed). Then, the wedge-shaped surfaces 42, 44 touch each other (first stop position) and begin to slide over each other; the two helical springs 20, 22 that is to say the two spring elements 20, 22 contract.
    [0008] The outer member 34 is then spaced apart by the inner member 32, which increases the frictional force developed between the surfaces 36 and 38. An intermediate layer of a material increasing the frictional force can be interposed between the surfaces 36 and 38 This layer is not shown in the drawings. This layer makes it possible to modify in a targeted way the friction force. The material of this layer will be fixed to the housing 18, or the friction element 34. It may be for example a thermoplastic elastomer based on polypropylene (PP) or ethylene-propylene-diene rubber (EPDM) . Santoprene © is particularly suitable for this application.
    [0009] If conversely, if the load exerted by the pedal lever 14 on the support element 28 is released, the inner element 32 will be disengaged from the inner coil spring 20 or first spring element 20 from its abutment position and slide into the axial direction in the outer member 34 to a second stop position in which the ring 48 abuts the abutment surface 49. The wedge-shaped surfaces 42, 44 move away from one another. and the outer member 34 reduces its outer diameter, which decreases the frictional force exerted between the surfaces 36 and 38. Thus a force / stroke curve is obtained for the spring device 16 which has hysteresis. The inner member 32 further has a stud 45 surrounded by the bearing surface 40 and receiving the inner coil spring 20. The stud 45 ensures the centering of the inner coil spring 20 or first spring member 20 which facilitates assembly of the spring. The stud 45 radially stabilizes the inner coil spring 20 and guides it in the axial direction during operation. This advantageously prevents the inner coil spring 20 from attaching to the outer coil spring 22.
    [0010] The bearing member 28 carries an overspeed spring 50 formed of two leaf springs 52 having substantially an L-shape and whose heels 54 are housed in the inner member 32. Each leaf spring 52 has an elastic tongue 56 housed in a lateral slot 58 or channel 58 of the housing 18 passing between the hysteresis surface (s) 38 of the housing 18. At the end of the channels 58, there is an inner edge 60 against which each elastic tongue 56 abuts overspeed position. The resilient tongues have a spoon-shaped curved end 62 whose curvature is turned inwardly, i.e., toward the axis. This curved end avoids contact with the circulation surface, the elastic tongue 56 is not impinged inside the housing 18. The inner edge 60 is bent with a corresponding shape. When the support element 28 is pushed by the pedal lever 14 in the overspeed position, the elastic tongues 56 bear against the inner edges 60 and from this position, the elastic tongues 56 are contracted in addition to the coil springs 20, 22, which increases the counter force exerted on the pedal lever 14. Figures 3 to 6 show further perspective views of the components of the spring device of Figure 2. Figures 5 and 6 show in FIG. furthermore, the outer member 34 has a slot 64 in the radial direction. This slot allows the outer member 34 to increase and decrease its diameter. The slot 64 thus passes on one side by the edge of the outer element 34 and passes through the ring 48 on both sides of the opening surrounded by the ring 48.
    [0011] NOMENCLATURE OF MAIN ELEMENTS 10 Pedal 12 Pedal support 14 Pedal lever 16 Spring device 18 Pot-shaped housing 20 First coil spring 22 Second coil spring 24 Case end 26 Support surface 28 Support element 30 Case end 32 Inside element of bearing element 34 Outside element of bearing element 36, 38 Friction surfaces 40 First bearing surface 41 Second bearing surface 42 Second wedge-shaped annular surface 44 First annular surface wedge-shaped 45 Stud 46 Groove 48 Ring 49 Stop surface 50 Overspeed spring 52 Leaf spring 54 Heel 56 Spring tongue / elastic tongue 58 Housing channel 60 Inner edge 62 Bent end of elastic tongue 64 Radial slot outside element35
    权利要求:
    Claims (2)
    [0001]
    1) spring device (16) for biasing a pedal (10) and having: a first spring member (20) which contracts in the axial direction and a second spring member (22) which contracts in the axial direction both of these spring elements being housed one inside the other, a housing (18) receiving the first spring element (20) and the second spring element (22) in that the first spring element (20) and the second spring member (22) abuts against a first end, a bearing member (28) on which the first spring member (20) and the second spring member (22) are supported by a second end, opposite, and which transmits the force developed by the spring device (16) to the lever (14) of the pedal, spring device characterized in that the support member (28) has an inner member (32) having a bearing surface for the pedal lever (14) and an outer member (34) guided in the housing (18) and in which the inner member slides to an abutment position, the inner member (32) having a first bearing surface (40) for the first spring member ( 20) and the outer member (34) having a second bearing surface (41) for the second spring member (22) so that before the stop position the inner member (32) transmits only the force of the first spring member (20) to the lever and in the stop position it further transmits the force of the second spring member (22) to the pedal lever (14).
    [0002]
    2) spring device (16) according to claim 1, characterized in that the inner member (32) protrudes from the outer member (34) and has a groove (46) in the peripheral direction receiving the ring ( 48) of the outer member (34) which penetrates radially therein, the ring sliding in the groove (46) in the axial direction to the stop position. 353) Spring device (16) according to claim 1 characterized in that the outer member (34) generates a frictional force against the inner side (38) of the housing (18) when the bearing member (28) moves in the housing (18), the contraction from the first spring member (20) to the stop position by the pedal lever (14) increasing the diameter of the outer member (34) to increase the frictional force and the expansion of the first member of the spring (20) and / or the second spring element (22), the diameter of the outer element (34) d iminue, which reduces the frictional force and thus the force exerted on the pedal lever (14) has hysteresis. Spring device (16) according to claim 1, characterized in that the inner member (32) has a first wedge-shaped surface (44) which bears against a second wedge-shaped surface (42). ) of the outer member (34) so that the thrust on the outer member (32) by the pedal lever (14) widens the inner member (32) with the first corner surface (44) by the element exterior (34) with the second corner surface (42). A spring device (16) according to claim 4, characterized in that the second corner surface (42) of the outer member (34) is installed on the ring (48) which has, on the opposite side, an abutment surface for the second abutment position of the inner member (32). 6 °) spring device (16) according to claim 1, characterized in that to stabilize the first spring member (20), the inner member (32) enters the first spring member (20). Spring device (16) according to claim 1, characterized in that the first spring element (20) is a helical spring and / or the second spring element (22) is a helical spring. 8 °) spring device (16) according to claim 1, characterized in that it further comprises: an overspeed spring (50) which protrudes laterally from the bearing element (28) and passes axially on the elements spring (20, 22) and, in the event of an overspeed position, abuts against an inner edge (60) of the housing (18) and from this overspeed position, it generates an additional spring force exerted on the pedal lever (14). 9 °) spring device (16) according to claim 8, characterized in that the housing (18) has at least one side channel (58) in which moves the overspeed spring (50) and adjacent the channel (58). ), the housing (18) has internal friction surfaces (38) on which the support element (28) slides and / or an inner edge (60) is provided at the end of at least one lateral channel (58) against which the overspeed spring (50) abuts in the overspeed position. Pedal (10) comprising a lever (14) pivotable about an axis and a spring device (16) according to any one of claims 1 to 9 for generating a variable opposing force acting on the lever of pedal (14) .30
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE102015200669B4|2017-09-14|
    CN105799505A|2016-07-27|
    KR20160088827A|2016-07-26|
    ITUB20169943A1|2017-07-12|
    DE102015200669A1|2016-07-21|
    CN105799505B|2020-02-07|
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    DE102010027924B4|2010-04-19|2017-07-27|Ab Elektronik Gmbh|accelerator|
    CN203157730U|2013-03-25|2013-08-28|宁波高发汽车控制系统股份有限公司|Electronic pedal|
    CN203318169U|2013-06-05|2013-12-04|上海凯众聚氨酯有限公司|Electronic accelerator pedal|DE102016218804A1|2016-09-29|2018-03-29|Robert Bosch Gmbh|Linear motion device with spindle support|
    JP6948127B2|2016-12-28|2021-10-13|株式会社ミクニ|Accelerator pedal device|
    KR102035050B1|2018-05-25|2019-10-22|경창산업주식회사|Accelerator pedal for vehicle|
    CN110549999B|2018-05-30|2021-08-27|上海海拉电子有限公司|Accelerator pedal system for vehicle|
    法律状态:
    2017-01-24| PLFP| Fee payment|Year of fee payment: 2 |
    2018-01-24| PLFP| Fee payment|Year of fee payment: 3 |
    2019-01-22| PLFP| Fee payment|Year of fee payment: 4 |
    2019-02-15| PLSC| Search report ready|Effective date: 20190215 |
    2020-10-16| ST| Notification of lapse|Effective date: 20200906 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015200669.7A|DE102015200669B4|2015-01-16|2015-01-16|Spring arrangement with hysteresis and overgas feature|
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