JP2019016200A - Operation pedal unit for vehicle - Google Patents

Abstract

To provide an operation pedal unit for a vehicle characterized in that precision in the position of a boss of an operation pedal with respect to a support member fixed to a first vehicle component member is ensured, and that the amount in which a depression part of the operation pedal is moved toward a front part of the vehicle is stabilized in the case of a collision of the vehicle.SOLUTION: An operation pedal unit 10 for a vehicle includes: a support member 20 that is fixed to a dash panel; an operation pedal 30 that is turnably supported by a first coupler 50 and has a depression part which is turned toward a front part of the vehicle with the first coupler 50 as a center in response to a depressing operation; and a regression prevention member 40 that is turnably supported by a second coupler existing above the first coupler 50 and has its upper end disposed in the front part of the vehicle beyond an instrument panel reinforcement. The first coupler 50 includes: a boss 34 of the operation pedal 30; a collar 52 that is inserted into the boss 34 and with which a lower end of the regression prevention member 40 is engaged; and pins 54 that fix the support member 20 and the collar 52 so that they do not move relatively.SELECTED DRAWING: Figure 2

Description

  The present invention suppresses the stepped portion of the operation pedal from retreating to the vehicle rear side when the vehicle structural member is displaced toward the vehicle rear side due to the vehicle collision (hereinafter referred to as “the step portion of the operation pedal at the time of vehicle collision”). This relates to a vehicle operating pedal device.

  2. Description of the Related Art Conventionally, various techniques have been proposed for a vehicle operation pedal device that prevents the stepped portion of the operation pedal from retreating in the event of a vehicle collision.

  For example, the technique described in Patent Document 1 below is a brake pedal device for an automobile, and the pivot bracket and the slide plate are disengaged at the time of a frontal collision of the vehicle, and the pivot bracket is allowed to rotate. The pivot bracket is rotated with the shaft as a fulcrum, so that the pedal arm is pulled toward the front side of the vehicle to prevent the pedal arm's stepping position from shifting backward and causing a sense of incongruity. Even if the engagement between the pivot bracket and the slide plate is disengaged for some reason, the pivoting of the pivot bracket is restricted by the restricting part, and the amount of change in the stepping position of the pedal arm is suppressed, reducing the sense of incongruity in operation. To do.

  According to such a configuration, it is possible to prevent a collision load from acting on the pedal arm via the master back push rod at the time of a frontal collision of the vehicle, and to prevent a malfunction and suppress a change in the depression position of the pedal arm. be able to.

  Further, the technology described in Patent Document 2 below is an operation pedal device for an automobile, in which a bracket fixed to the rear surface of a dashboard is adjacent to a support hole that supports the pivot of the operation pedal with a partition wall interposed therebetween. A control lever that makes the lower arm face the front of the pivot via the operation pedal is pivotally supported via a control pedal, and a stopper member fixed to the vehicle body is made to face the upper arm of this control lever from the rear, and the dashboard When the control lever comes into contact with the stopper member and rotates in accordance with the backward deformation, the pivot is broken by the excessive load received from the lever and moves backward in the long hole.

  According to such a configuration, the support hole of the pivot of the operation pedal can be formed in a circular shape corresponding to the outer peripheral surface of the pivot, and there is no backlash between the two, and the pivot is not moved when the dashboard is deformed backward. It can be moved backward to prevent the operation pedal from approaching the driver.

JP 2002-087228 A JP 2006-160150 A

  However, in the device described in Patent Document 1, the pedal shaft is connected to the pedal bracket via the pivot bracket, and the pedal shaft is not directly connected to the pedal bracket. The position accuracy of the pedal shaft with respect to the pedal bracket may vary.

  In the device described in Patent Document 2, the pivot of the operation pedal exists in the long hole when the dashboard is deformed backward, and the pivot of the operation pedal can swing in the long hole. Therefore, there is a possibility that the amount by which the stepped portion of the operation pedal moves forward becomes unstable.

  Accordingly, the present invention has been made in view of the above-described points, and ensures the positional accuracy of the boss of the operation pedal with respect to the support member fixed to the first vehicle constituent member, and also when the operation pedal is depressed in the event of a vehicle collision. It is an object of the present invention to provide a vehicular operating pedal device that stabilizes the amount of movement of the front portion of the vehicle to the front side of the vehicle (hereinafter referred to as “amount of prevention of retraction of the stepped portion of the operating pedal when the vehicle collides”).

  The invention according to claim 1 to solve this problem is a vehicle operation pedal device, and is rotatable by a support member fixed to a first vehicle component and a first connecting portion of the support member. Is supported by an operation pedal having a step portion that rotates to the front side of the vehicle around the first connection portion by a stepping operation, and a second connection portion that is above the first connection portion. The upper end portion protrudes from the first vehicle component member to the vehicle rear side between the reverse preventing member disposed on the vehicle front side relative to the second vehicle component member, and the first connecting portion and the step portion of the operation pedal. A support portion that rotatably supports the distal end portion of the operating rod with respect to the operation pedal, and the first connecting portion is inserted into the boss and the lower end of the retraction preventing member. The collar engaged with the When the first vehicle component member is displaced rearward in the event of a vehicle collision, the upper end portion of the reverse preventing member is moved forward of the vehicle by the second vehicle component member. When the pin is pushed to the side, the pin breaks and the retraction preventing member rotates about the second connecting portion with respect to the support member, so that the boss of the operation pedal moves to the vehicle rear side. It is characterized by.

  The invention according to claim 2 is the vehicular operation pedal device according to claim 1, wherein the retreat prevention member is arranged such that a facing surface facing the support member is spaced apart from the facing surface of the support member, and the collar Is fixed to the receding prevention member.

  The invention according to claim 3 is the vehicle operation pedal device according to claim 2, wherein the support member or the retreat prevention member includes a protrusion whose tip is in contact with the retraction prevention member or the support member. Features.

  The invention according to claim 4 is the vehicle operation pedal device according to any one of claims 1 to 3, wherein the pin includes a notch portion in a boundary region between the support member and the collar. It is characterized by.

  The invention according to claim 5 is the vehicle operating pedal device according to any one of claims 1 to 4, wherein the collar is formed as the inner peripheral surface of the end portion is directed outward in the axial direction. And an inclined end portion extending outward in the radial direction.

  The invention according to claim 6 is the vehicle operation pedal device according to claim 5, wherein the pin includes an inclined side surface portion facing the inclined end portion of the collar.

  In the vehicle operation pedal device according to the first aspect of the present invention, the first connecting portion is provided in the support member fixed to the first vehicle constituent member. In the first connecting portion, the collar is in a state of being inserted into the boss of the operation pedal, and is fixed so as not to move relative to the support member by a pin. Thereby, the boss of the operation pedal is in a state of being rotatable with respect to the support member around the collar. Therefore, when the stepping portion of the operation pedal is depressed, it turns to the front side of the vehicle around the first connecting portion.

  That is, in the vehicle operating pedal device according to the first aspect of the present invention, since the boss of the operating pedal is directly supported by the support member by the first connecting portion (the collar and the pin thereof), the first vehicle constituent member It is possible to ensure the positional accuracy of the boss of the operation pedal with respect to the support member fixed to the.

  Furthermore, in the support member, a second connection portion is provided above the first connection portion. In the second connecting portion, the retreat preventing member is supported so as to be rotatable with respect to the support member. In the first connecting portion, the lower end portion of the retreat preventing member is engaged with the collar. Therefore, the receding prevention member is in a state in which the rotation with respect to the support member is blocked by the pin that fixes the collar and the support member so as not to move relative to each other. In such a state, the upper end portion of the retreat prevention member is disposed on the vehicle front side with respect to the second vehicle component member.

  Accordingly, the upper end portion of the reverse prevention member is pushed toward the vehicle front side relative to the support member by the second vehicle component member when the first vehicle component member is displaced toward the vehicle rear side when the vehicle collides. It tries to turn to the vehicle front side centering on this 2nd connection part. Along with this, the lower end portion of the receding prevention member tries to turn to the vehicle rear side around the second connecting portion of the support member. Therefore, in the first connecting portion of the support member, the pin is pushed to the vehicle rear side by the collar engaged with the lower end portion of the retreat prevention member.

  As a result, when the pin breaks and the reverse prevention member rotates around the second connecting portion of the support member, the collar engaged with the lower end of the reverse prevention member moves to the vehicle rear side. The boss of the operation pedal in which is inserted is also moved to the vehicle rear side together with the lower end portion of the reverse preventing member. In this way, when the boss of the operating pedal moves to the vehicle rear side, the operating pedal rotates with a rotational moment centering on the support portion that rotatably supports the tip of the operating rod with respect to the operating pedal. Since the step portion of the operation pedal moves to the vehicle front side, in the vehicle operation pedal device according to the first aspect of the present invention, the retraction of the step portion of the operation pedal is appropriately performed at the time of a vehicle collision.

  That is, in the vehicle operation pedal device according to the first aspect of the present invention, the first vehicle component member is displaced toward the vehicle rear side at the time of a vehicle collision, and the retreat prevention member rotates about the second connecting portion of the support member. Then, the collar inserted in the boss of the operation pedal moves to the vehicle rear side while being engaged with the lower end portion of the reverse preventing member. As a result, the step portion of the operation pedal moves to the front side of the vehicle. At this time, the upper end portion of the reverse prevention member is pushed to the vehicle front side by the second vehicle component member, and the upper end portion of the reverse prevention member does not return to the vehicle rear side. For this reason, since the rotation of the reverse prevention member centering on the second connecting portion of the support member does not reverse, the reverse prevention amount of the step portion of the operation pedal at the time of a vehicle collision is stabilized.

  In the vehicular operation pedal device according to the second aspect of the present invention, the opposing surface of the receding prevention member and the opposing surface of the support member are spaced apart, and a frictional resistance is generated between the receding preventing member and the support member. Since it is difficult, it is easy to rotate the reverse prevention member at the time of a vehicle collision. Furthermore, in the vehicle operating pedal device according to the second aspect of the present invention, since the collar is fixed to the reverse movement preventing member, the engagement between the collar and the backward movement preventing member is realized. It is possible to maintain the state in which the collar is engaged even when the reverse preventing member is rotating at the time of a vehicle collision.

  In the vehicle operating pedal device according to the third aspect of the present invention, when the support member includes the protrusion, the tip of the protrusion is in contact with the retreat prevention member. Therefore, even if the opposing surface of the receding prevention member is disposed away from the opposing surface of the support member, the receding prevention member is in point contact with the support member by the tip portion of the protrusion. Therefore, in the vehicle operating pedal device according to the third aspect of the invention, the relative position in the vehicle width direction of the support member and the reverse movement prevention member during normal operation is determined, and the rotation of the reverse movement prevention member during a vehicle collision is further facilitated. It is. These points are the same when the receding prevention member includes a protrusion.

  In the vehicle operating pedal device according to the fourth aspect of the present invention, the pin breaks from the notch portion of the pin. Therefore, the pin notch portion is arranged in the boundary region between the support member and the collar to support the pin breakage. It can be caused at the boundary region between the member and the collar. Therefore, in the vehicle operating pedal device according to the fourth aspect of the present invention, it is difficult for the broken portion of the pin to be caught by the support member and the collar at the time of a vehicle collision.

  In the vehicular operating pedal device according to the fifth aspect of the present invention, the collar includes an inclined end portion that extends outward in the radial direction as the inner peripheral surface of the end portion moves outward in the axial direction. Therefore, at the time of a vehicle collision, when the pin breaks, the broken portion of the pin moves to the outside of the collar (that is, outside the receding prevention member) while being guided by the inclined end portion of the collar. Thus, in the vehicular operation pedal device according to the fifth aspect of the present invention, the rotation of the reverse preventing member at the time of a vehicle collision is smoothly started.

  In the vehicle operation pedal device according to the sixth aspect of the present invention, the pin includes an inclined side surface portion that faces the inclined end portion of the collar. Therefore, at the time of a vehicle collision, when the pin breaks, the broken side of the pin is guided to the inclined end portion of the collar, and the broken portion of the pin moves to the outside of the collar (that is, the outside of the receding prevention member). Thus, in the vehicular operating pedal device according to the sixth aspect of the invention, the rotation of the reverse preventing member at the time of the vehicle collision is started more smoothly.

It is a side view showing the composition of the operation pedal device for vehicles of this embodiment in the normal time. It is the figure by which the cross section which cut | disconnected the operation pedal apparatus for vehicles with the line AA of FIG. 1 was represented. It is the figure by which the structure of the operation pedal apparatus for the vehicles at the time of a vehicle collision was represented. It is the figure by which the cross section of FIG. 2 at the time of a vehicle collision was represented. In FIG. 1, the configuration of the vehicle operation pedal device at the time of a vehicle collision is a diagram represented by a two-dot chain line. FIG. 3 is a cross-sectional view of FIG. 2 showing a modified example of the vehicle operation pedal device. FIG. 3 is a cross-sectional view of FIG. 2 showing a modified example of the vehicle operation pedal device. FIG. 3 is a cross-sectional view of FIG. 2 showing a modified example of the vehicle operation pedal device.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an operation pedal device for a vehicle according to the present invention will be described based on a specific embodiment of the present invention with reference to the drawings. In the drawings used for the following description, a part of the basic configuration is omitted, and the dimensional ratios of the drawn parts are not necessarily accurate.

  In each figure, the front-rear direction, the up-down direction, and the left-right direction are as described in each figure. However, in each side view of FIG. 1, FIG. 3, and FIG. 5, the back side of the paper surface of each figure is the right direction, and the near side of the paper surface of each figure is the left direction. In each of the cross-sectional views of FIGS. 2, 4, and 6 to 8, the back side of the paper surface of each figure is the forward direction, and the near side of the paper surface of each figure is the backward direction.

(1) Overview of Vehicle Operation Pedal Device As shown in FIG. 1, the vehicle operation pedal device 10 according to the present embodiment includes a support member 20, an operation pedal 30, a reverse prevention member 40, a first connecting portion 50, And the second connecting portion 60 and the like. The support member 20 is made of metal or resin.

  The support member 20 includes a substrate 22 and a pair of side plates 24. The substrate 22 is such that the front end portion of the support member 20 is formed in a substantially flat plate shape. A plurality of mounting holes H are provided in the substrate 22. Each mounting hole H is provided on the periphery of the substrate 22. Bolts (not shown) for fastening the substrate 22 to the dash panel 100A are inserted into the mounting holes H. Thereby, the support member 20 is fixed to a dash panel 100A described later. The pair of side plates 24 extends substantially parallel to the rearward direction from the substrate 22 with a predetermined interval in the left-right direction (that is, the direction perpendicular to the paper surface of FIG. 1).

  Note that the dash panel 100 </ b> A corresponds to a part of the vehicle 100. The vehicle 100 includes an instrument panel reinforcement 100B and a collision bracket 100C in addition to the dash panel 100A. The instrument panel reinforcement 100B is arranged in the rearward direction with respect to the dash panel 100A. The collision bracket 100C is fixed from the front end portion to the lower end portion of the instrument panel reinforcement 100B. Hereinafter, the rear direction may be described as “the rear side of the vehicle 100”, and the front direction may be described as “the front side of the vehicle 100”. The left-right direction corresponds to the vehicle width direction of the vehicle 100.

  The upper end of the operation pedal 30 is supported by the first connecting portion 50 so as to be rotatable. The operation pedal 30 is provided with a step portion 32 at the lower end thereof. In the middle of the upper end portion and the lower end portion of the operation pedal 30, a distal end portion of an operating rod R, which will be described later, is rotatably supported with respect to the operation pedal 30 via a connecting pin P and a clevis C. The operation pedal 30 is provided with a mounting hole (not shown) for inserting the connecting pin P. In addition, in the 1st connection part 50, the structure by which the operation pedal 30 is rotatably supported is mentioned later.

  The receding prevention member 40 includes a substrate 42 and a pair of side plates 44. The substrate 42 has a front end portion of the receding prevention member 40 formed in a substantially flat plate shape. The width of the substrate 42 (which is the length from the left end portion to the right end portion), that is, the length in the left-right direction of the substrate 42 is shorter than the predetermined interval of the support member 20. The pair of side plates 44 extends from the left and right end portions of the substrate 42 substantially in parallel in the rearward direction.

  The receding prevention member 40 is disposed between the pair of side plates 24 of the support member 20 such that the pair of side plates 44 faces the pair of side plates 24 of the support member 20. The receding prevention member 40 is rotatably supported with respect to the support member 20 by a second connecting portion 60 provided on the upper side of the first connecting portion 50. In addition, in the 2nd connection part 60, since it is a well-known technique about the structure by which the receding prevention member 40 is rotatably supported, detailed description is abbreviate | omitted.

  The upper end portion 40A of the retreat prevention member 40 is disposed on the front side of the vehicle 100 with respect to the collision bracket 100C of the instrument panel reinforcement 100B. On the other hand, the lower end portion 40 </ b> B of the receding prevention member 40 is fixed to the first connecting portion 50. In addition, in the 1st connection part 50, the structure by which the lower end part 40B of the receding prevention member 40 is fixed is mentioned later.

(2) Overview of First Connection Part As shown in FIG. 2, the vehicle operation pedal device 10 of the present embodiment includes a first connection part 50. In the first connecting portion 50, as described above, the pair of side plates 44 of the receding prevention member 40 is disposed between the pair of side plates 24 of the support member 20. A pair of side plates 24 of the support member 20 is provided with a circular opening 24A. A circular opening 44 </ b> A is provided through the pair of side plates 44 (the lower end portion 40 </ b> B) of the receding prevention member 40. Each opening 24A of the support member 20 and each opening 44A of the receding prevention member 40 are in communication with each other in the left-right direction (that is, the vehicle width direction of the vehicle 100).

  The first connecting portion 50 includes a boss 34, a collar 52, a pair of pins 54, a pair of bushes B, and the like. The boss 34 is provided at the upper end portion of the operation pedal 30. Each bush B is inserted into the left and right ends of the cylindrical hollow portion of the boss 34. The boss 34 (the cylindrical hollow portion thereof) is disposed between the pair of side plates 44 of the receding prevention member 40 and the collar 52 is inserted. The left and right end portions of the collar 52 protrude from each opening 44A of the receding prevention member 40, and the projecting portion is caulked to fix the collar 52 to the receding preventing member 40. As a result, the circular flange portion of the bush B is sandwiched between the boss 34 and the side plate 44 of the receding prevention member 40, and the cylindrical portion of the bush B is sandwiched between the boss 34 and the collar 52.

  Each pin 54 is press-fitted into the left and right ends of the cylindrical hollow portion of the collar 52 from the outside of each opening 24 </ b> A of the support member 20. At that time, the head of each pin 54 is press-fitted into each opening 24 </ b> A of the support member 20. As a result, the collar 52 is fixed to the support member 20 via the pins 54. As described above, the collar 52 is inserted into the boss 34 of the operation pedal 30. Therefore, in the 1st connection part 50, the operation pedal 30 (the boss | hub 34) is rotatably supported through the collar 52 currently fixed to the support member 20 with each pin 54. As shown in FIG. Further, as described above, the collar 52 is fixed to the receding prevention member 40 by crimping the left and right ends thereof. Therefore, in the first connecting portion 50, the retreat preventing member 40 (the lower end portion 40 </ b> B) is fixed to the support member 20 through the collar 52 fixed to the support member 20 with each pin 54.

  The portion where the left and right end portions of the collar 52 are crimped is interposed between the support member 20 and the receding prevention member 40. Therefore, the facing surface 26 where each side plate 24 of the support member 20 faces the receding prevention member 40 is in a state of being separated from the facing surface 46 of each side plate 44 of the receding preventing member 40.

  A notch portion 54 </ b> A is formed on the outer peripheral surface of each pin 54. The notches 54 </ b> A of the pins 54 are formed between the support member 20 and the receding prevention member 40, that is, between the support member 20 and the collar 52 by the heads of the pins 54 being in contact with the left and right ends of the collar 52. Located in the border area.

(3) Operation of Vehicle Operation Pedal Device During Depression Operation As described above, in the vehicle operation pedal device 10 of the present embodiment, the first connecting portion 50 is provided in the support member 20 fixed to the dash panel 100A. It has been. In the first connecting portion 50, the collar 52 is in a state of being inserted into the boss 34 of the operation pedal 30 via the bush B, and is fixed to the support member 20 so as not to move relative to each other by the pins 54. Yes. Accordingly, the boss 34 of the operation pedal 30 is in a state of being rotatable with respect to the support member 20 around the collar 52.

  Therefore, in the vehicle operation pedal device 10 according to the present embodiment, in a normal time, when the driver of the vehicle 100 depresses the step 32 of the operation pedal 30 toward the front side of the vehicle 100, the operation operation on the operation pedal 30 is performed. As a result, the stepped portion 32 of the operation pedal 30 moves circularly toward the front side of the vehicle 100 around the first connecting portion 50 (the collar 52 and each pin 54). On the other hand, when the stepping operation on the operation pedal 30 is released, the stepping portion 32 of the operation pedal 30 is moved to the first connecting portion 50 (the collar 52 and each pin 54) by a biasing force of a biasing member (not shown). The vehicle moves circularly toward the rear side of the vehicle 100 around the center.

  That is, in the vehicle operating pedal device 10 of the present embodiment, the boss 34 of the operating pedal 30 is directly supported by the support member 20 by the first connecting portion 50 (the collar 52 and each pin 54). It is possible to ensure the positional accuracy of the boss 34 of the operation pedal 30 with respect to the support member 20 fixed to the dash panel 100A.

  The operating rod R protrudes from the insertion hole (not shown) of the dash panel 100A to the rear side of the vehicle 100. When the operating rod R is displaced to the front side of the vehicle 100 as the operation pedal 30 is depressed, Is transmitted to a braking device or a control device that controls the driving state of the vehicle 100 through a hydraulic circuit or an electronic circuit.

(4) Operation of Vehicle Operation Pedal Device During Vehicle Collision As described above, in the support member 20 of the vehicle operation pedal device 10 of the present embodiment, the second connection portion 60 is located above the first connection portion 50. Is provided. In the second connecting portion 60, the retraction preventing member 40 is supported so as to be rotatable with respect to the support member 20. On the other hand, in the first connecting portion 50, the lower end portion 40 </ b> B of the receding prevention member 40 is fixed to the collar 52. Therefore, the receding prevention member 40 is in a state in which the rotation with respect to the support member 20 is blocked by the pins 54 that fix the collar 52 and the support member 20 so as not to move relative to each other. In such a state, the upper end portion 40A of the receding prevention member 40 is disposed on the front side of the vehicle 100 with respect to the collision bracket 100C of the instrument panel reinforcement 100B.

  As shown in FIG. 3, in the vehicle operation pedal device 10 according to the present embodiment, when the dash panel 100 </ b> A is displaced to the rear side of the vehicle 100 at the time of a vehicle collision, the upper end portion 40 </ b> A of the retraction preventing member 40 is There is a case where it strikes against the collision bracket 100C of the reinforcement 100B.

  In such a case, the upper end portion 40A of the receding prevention member 40 is pushed toward the front side of the vehicle 100 relative to the support member 20 by the collision bracket 100C of the instrument panel reinforcement 100B. As a result, the upper end portion 40A of the receding prevention member 40 tries to turn to the front side of the vehicle 100 around the second connecting portion 60 of the support member 20, and the lower end portion 40B of the receding prevention member 40 is supported by the support member 20. The second connecting part 60 is centered on the rear side of the vehicle 100.

  Therefore, in the first connecting portion 50 of the support member 20, each pin 54 press-fitted into the support member 20 and the collar 52 is rearward of the vehicle 100 by the collar 52 fixed to the lower end portion 40 </ b> B of the receding prevention member 40. Pushed to.

  As a result, a shearing force by the support member 20 and the collar 52 acts on each pin 54, and stress concentration occurs in the notch portion 54 </ b> A of each pin 54. When the stress value exceeds the allowable value, the notch portion 54A of each pin 54 breaks as shown in FIG. The notch portion 54A of each pin 54 is shaped such that its stress value does not exceed an allowable value during the stepping operation.

  In this way, when each pin 54 is broken and the receding prevention member 40 rotates about the second connecting portion 60 of the support member 20, the lower end portion of the receding prevention member 40 as shown in FIG. Since the collar 52 fixed to 40B moves to the rear side of the vehicle 100, the boss 34 of the operation pedal 30 in which the collar 52 is inserted also moves to the rear side of the vehicle 100 together with the lower end portion 40B of the retraction preventing member 40. To do. As a result, the step portion 32 of the operation pedal 30 moves to the front side of the vehicle 100, so that the step portion 32 of the operation pedal 30 is appropriately prevented from retreating when the vehicle collides.

  That is, in the vehicle operation pedal device 10 of the present embodiment, as shown in FIG. 5, the dash panel 100 </ b> A is displaced in the direction of the arrow AR <b> 1, that is, the rear side of the vehicle 100 when the vehicle collides. When 40 rotates about the second connecting portion 60 of the support member 20 in the direction of the arrow AR2, the collar 52 fitted to the boss 34 of the operation pedal 30 is fixed to the lower end portion 40B of the retreat preventing member 40. The vehicle 100 moves to the rear side of the vehicle 100 in the state where it is kept.

  As a result, when the boss 34 of the operation pedal 30 moves to the rear side of the vehicle 100, the operation pedal 30 is operated by a rotational moment about the connecting pin P that rotatably supports the distal end portion of the operating rod R with respect to the operation pedal 30. The pedal 30 rotates. Here, for example, when the center of gravity of the operation pedal 30 is below and behind the connecting pin P, the stepped portion 32 of the operation pedal 30 moves in the direction of the arrow AR3, that is, the front side of the vehicle 100.

  Therefore, as represented by a two-dot chain line in FIG. 5, the step portion 32 of the operation pedal 30 is compared with a state where the stepping operation is released (that is, the step portion 32 of the operation pedal 30 represented by a solid line). Then, the vehicle 100 moves to the front side of the vehicle 100 to a position away from the advance distance 102. The forward travel distance 102 corresponds to the amount by which the step 32 of the operation pedal 30 is prevented from moving backward during a vehicle collision.

  In this way, when the step portion 32 of the operation pedal 30 moves, the upper end portion 40A of the retreat prevention member 40 is pushed to the front side of the vehicle 100 by the collision bracket 100C of the instrument panel reinforcement 100B. The upper end portion 40 </ b> A of the member 40 does not return to the rear side of the vehicle 100. For this reason, since the rotation of the backward movement preventing member 40 around the second connecting portion 60 of the support member 20 does not reverse, the amount of backward movement prevention (that is, the forward travel distance 102) of the stepped portion 32 of the operation pedal 30 at the time of a vehicle collision. Stabilize.

  Further, in the vehicle operation pedal device 10 of the present embodiment, as shown in FIGS. 2 and 4, the facing surface 46 of the retreat prevention member 40 and the facing surface 26 of the support member 20 are arranged apart from each other. In addition, since it is difficult for a frictional resistance to be generated between the reverse movement preventing member 40 and the support member 20, the reverse movement preventing member 40 can be easily rotated during a vehicle collision.

  Further, in the vehicle operation pedal device 10 of the present embodiment, since the collar 52 is fixed to the retreat prevention member 40, the opposed surface 46 of the retreat preventive member 40 and the opposed surface 26 of the support member 20 are arranged apart from each other. Even if it is done, it is possible to maintain the state where the collar 52 is fixed to the lower end portion 40B of the retreat preventing member 40 even when the retreat preventing member 40 is rotating at the time of a vehicle collision.

(5) Others The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. However, in the following description, parts that are substantially the same as those in the above embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  For example, as illustrated in FIG. 6, the protrusions 28 may be provided on the facing surfaces 26 of the pair of side plates 24 of the support member 20. The protrusion 28 includes a tip 28 </ b> A that abuts against the facing surface 46 of the side plate 44 of the receding prevention member 40. Therefore, even if the opposing surface 46 of the receding prevention member 40 is disposed away from the opposing surface 26 of the support member 20, the receding prevention member 40 is in point contact with the support member 20 by the distal end portion 28 </ b> A of the protruding portion 28. Therefore, in the vehicle operation pedal device 10 according to the present embodiment, the relative positions of the support member 20 and the reverse movement preventing member 40 in the normal direction in the normal direction (that is, the vehicle width direction of the vehicle 100) are determined, and at the time of a vehicle collision. The retreat prevention member 40 can be rotated more easily.

  As shown in FIG. 7, this point is the same even when the protrusions 48 are provided on the opposing surfaces 46 of the pair of side plates 44 of the receding prevention member 40. However, the tip 48 </ b> A of the protrusion 48 abuts against the facing surface 26 of the side plate 24 of the support member 20.

  The protrusions 28 and 48 are interposed between the support member 20 and the retreat prevention member 40. Therefore, even if the left and right end portions of the collar 52 are not crimped, the separated state between the facing surface 26 of each side plate 24 of the support member 20 and the facing surface 46 of each side plate 44 of the receding prevention member 40 is ensured.

  Therefore, when the projections 28 and 48 are present, the left and right end portions of the collar 52 are not protruded from the openings 44A of the receding prevention member 40, for example, and are pressed into the openings 44A of the receding prevention member 40, for example. Or may be fixed to the receding prevention member 40 by being engaged with each opening 44 </ b> A of the receding prevention member 40. This is the same even when the opposing surface 26 of each side plate 24 of the support member 20 contacts the opposing surface 46 of each side plate 44 of the receding prevention member 40.

  Further, as shown in FIG. 8, inclined end portions 52 </ b> B may be provided on the inner peripheral surfaces 52 </ b> A of the left and right end portions of the collar 52. The inclined end portion 52B is formed by chamfering the inner peripheral edge portion of the left and right end portions of the collar 52, and the inner peripheral surface 52A of the left and right end portions of the collar 52 is outside the axial direction (that is, the left and right direction). As it goes, it spreads outward in the radial direction (that is, the vertical direction). Furthermore, as shown in FIG. 8, each pin 54 may be provided with an inclined side surface portion 54 </ b> B. The inclined side surface portion 54B of each pin 54 faces the inclined end portion 52B of the collar 52 when the head of each pin 54 is in contact with the left and right end portions of the collar 52. Therefore, when each pin 54 breaks at the time of a vehicle collision, the inclined side surface portion 54B of each pin 54 is guided to the inclined end portion 52B of the collar 52, and the broken portion of each pin 54 is outside the collar 52 (that is, retracted). The outer side of the prevention member 40). As a result, in the present modification example, the rotation of the reverse preventing member 40 at the time of a vehicle collision is started smoothly.

  In the modified example shown in FIG. 8, the inclined side surface portion 54B of each pin 54 may not be provided. In such a case, when each pin 54 breaks at the time of a vehicle collision, the breakage point of each pin 54 is guided to the inclined end portion 52B of the collar 52 while being outside the collar 52 (that is, the retraction preventing member 40). To the outside). This also ensures that the rotation of the reverse preventing member 40 starts smoothly in the event of a vehicle collision.

  In this embodiment, instead of the collar 52 and the pair of pins 54, a rotation shaft that is fitted into the boss 34 of the operation pedal 30 via the bush B may be provided. In such a case, the left and right ends of the rotation shaft are fixed to the respective openings 44A of the receding prevention member 40 by press fitting or the like. Furthermore, each pin protrudes from the left and right ends of the pivot shaft in the left-right direction. Each pin of the rotating shaft is disposed in each opening 24A of the support member 20, and is fixed to each opening 24A of the support member 20 by a press-fitting ring or the like. In the event of a vehicle collision, the pins of the rotating shaft are broken, thereby preventing the stepped portion 32 of the operation pedal 30 from moving backward.

  In the present embodiment, the present invention is applied using the operation pedal 30 as a brake pedal. However, the present invention may be applied to each pedal (for example, an accelerator pedal or a clutch pedal) used in the vehicle 100. .

  Incidentally, in the above embodiment, the dash panel 100A is an example of a “first vehicle component”. The instrument panel reinforcement 100B and the collision bracket 100C are examples of the “second vehicle constituent member”. The attachment hole of the connecting pin P is an example of a “support portion”.

DESCRIPTION OF SYMBOLS 10 Vehicle operation pedal apparatus 20 Support member 26 Opposite surface 28 Protrusion part 28A Protrusion part tip part 30 Operation pedal 32 Step part 34 Boss 40 Retraction prevention member 40A Retraction prevention member upper end part 40B Retraction prevention member lower end part 46 Opposition surface 48 Projection 48A Projection Tip 50 First Connection 52 Color 52A Collar Inner Surface 52B Collar Inclined End 52B Color Inclined End 54 Pin 54A Pin Notch 54B Pin Inclined Side 60 60 Second Connection 100 Vehicle 100A Dash panel 100B Instrument panel reinforcement 100C Collision bracket R Operating rod

Claims (6)

A support member fixed to the first vehicle component;
An operation pedal having a step portion that is rotatably supported by the first connecting portion of the support member and that rotates to the front side of the vehicle around the first connecting portion by a stepping operation;
A retraction preventing member that is rotatably supported by a second connecting portion on the upper side of the first connecting portion, and whose upper end portion is disposed on the vehicle front side of the second vehicle constituent member;
A support that rotatably supports a front end portion of an operating rod protruding from the first vehicle component member toward the vehicle rear side between the first connecting portion and the step portion of the operation pedal with respect to the operation pedal. With
The first connecting part is
A boss provided on the operation pedal;
A collar fitted into the boss and engaged with the lower end of the receding prevention member;
A pin for fixing the support member and the collar so as not to move relative to each other;
When the first vehicle constituent member is displaced toward the vehicle rear side at the time of a vehicle collision, the upper end portion of the reverse preventing member is pushed toward the vehicle front side by the second vehicle constituent member, so that the pin is broken. Then, the boss of the operation pedal moves to the vehicle rear side when the retreat prevention member rotates with respect to the support member around the second connecting portion. Pedal device. The receding prevention member is disposed such that a facing surface facing the support member is separated from the facing surface of the support member,
The vehicular operation pedal device according to claim 1, wherein the collar is fixed to the retreat prevention member. The support member or the receding prevention member is
The vehicular operation pedal device according to claim 2, wherein a distal end portion includes a protrusion that abuts against the retreat prevention member or the support member. The pin is
The vehicular operating pedal device according to any one of claims 1 to 3, wherein a notch portion is provided in a boundary region between the support member and the collar. The color is
The vehicular vehicle according to any one of claims 1 to 4, further comprising an inclined end portion in which an inner peripheral surface of the end portion extends radially outward as it goes outward in the axial direction. Operation pedal device. The pin is
The vehicular operating pedal device according to claim 5, further comprising an inclined side surface portion facing the inclined end portion of the collar.

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