JP2017211899A - Retreat prevention device for vehicle pedal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a retreat prevention device for a vehicle pedal device which can exhibit a retreat prevention function of an operation pedal even in oblique collision.SOLUTION: A brake pedal device 1 comprises a pedal bracket 10, an operation pedal 20, an intermediate lever 25, a connection link 30, a retreat prevention bracket 40, and a departure bracket 50. The departure bracket 50 is fixed to an instrument panel reinforcement I or the like. The retreat prevention bracket 40 has an extension part 45 and a movement permission part 46, and the extension part 45 is fixed on a fixing piece 51. When a dash panel P is displaced to a vehicle rear side, the extension part 45 of the retreat prevention bracket 40 moves downward from the upper part of the fixing piece 51 of the departure bracket 50, and the retreat prevention bracket 40 rotates around a second support shaft 13. Therefore, since a relative position of a first support shaft 12 to a second support shaft 13 is changed, the operation pedal 20 rotates to a vehicle front side in a coercive state.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a reverse preventing device for a vehicular pedal device that suppresses the operation pedal from moving backward when a dash panel is displaced toward the rear of the vehicle due to a vehicle collision.

  2. Description of the Related Art Conventionally, for example, an invention described in Patent Document 1 is known as a reverse prevention device for a vehicle pedal device that suppresses an operation pedal from moving to the occupant side behind a vehicle body at the time of a vehicle collision. The vehicular pedal retreat prevention device described in Patent Document 1 is configured to include a pedal bracket, an operation pedal, and a support member integrally fixed to a vehicle body side member. It is configured to suppress the stepped portion of the operation pedal from moving backward to the driver's seat when it is moved backward to the driver's seat.

  Specifically, in the brake pedal device described in Patent Document 1, the upper end portion of the pedal bracket is connected to the notches in the plurality of connecting plates constituting the support member via connecting pins. And if a dash panel is displaced to the driver's seat side by the heavy load input etc. from the vehicle front, a connection plate will fracture | rupture in the part in which the notch was provided. Thus, the upper end portion of the pedal bracket is detached from the support member and is displaced along the lower end surface of the support member. As a result, in the brake pedal device, the pedal bracket changes its posture so as to bow, and the stepped portion of the operation pedal is prevented from moving backward toward the driver's seat.

JP 2005-138613 A

  Here, in the reverse prevention device for a vehicle pedal device as described in Patent Document 1, a collision from the front side of the vehicle (for example, all of the front of the vehicle in the frontal collision of the vehicle is the other vehicle or It is configured on the premise of the situation of a full lap collision that hits an obstacle, and is configured to prevent the stepped portion of the operation pedal from retreating when a collision load is applied from the front side of the vehicle.

  On the other hand, in addition to a full lap collision such as a frontal collision from the front side of the vehicle, the vehicle collision is a situation in which the vehicle collides from the right front side or the left front side (hereinafter referred to as an oblique collision) or a frontal collision of the vehicle. Among them, various aspects such as an offset collision in which a part of the front surface of the vehicle body hits another vehicle or an obstacle are included.

  In the case of the vehicle pedal device reverse preventing device described in Patent Document 1, in the case of a full wrap collision, the connecting plate of the support member can be broken around the notch, and the stepped portion of the operation pedal can be Preventing a retreat. However, in the case of an oblique collision or offset collision, the direction of the collision load acting on the connection plate of the support member is different from that of the full wrap collision, so the connection plate of the support member may not be able to be broken around the notch. Conceivable. In this case, the reverse preventing device for the vehicle pedal device described in Patent Document 1 cannot change the pedal bracket to a desired posture and cannot prevent the stepped portion of the operation pedal from moving backward to the driver's seat side. There was a case.

  The present invention relates to a reverse prevention device for a vehicular pedal device that suppresses the operation pedal from moving backward when the dash panel is displaced toward the rear of the vehicle due to a vehicle collision. An object of the present invention is to provide a vehicular pedal device reverse prevention device capable of exerting an operation pedal reverse prevention function.

  A reverse movement prevention device for a pedal device for a vehicle according to one aspect of the present invention includes a pedal bracket that is fixed to a dash panel on the front side of the vehicle and has a pair of side plates, and a step portion that is used for a stepping operation toward the front side of the vehicle, An operation pedal that is rotatably supported by a first support shaft, and a pedal bracket that is rotatably supported around a second support shaft disposed in parallel to the first support shaft, An intermediate lever that displaces a predetermined output member toward the front of the vehicle by turning in the output direction about the second support shaft, and the operation pedal and the intermediate lever are connected to each other and interlocked with a stepping operation on the operation pedal. And a connecting pedal for rotating the intermediate lever in the output direction, and when the dash panel is displaced toward the rear side of the vehicle, And a reverse preventing device that suppresses displacement of the portion toward the rear side of the vehicle, and is disposed so as to be rotatable about the second support shaft with respect to the pedal bracket, and the first support shaft is located at a position different from the second support shaft. A back-prevention bracket that holds one support shaft by a pair of side plates, a release bracket that has a fixing piece that extends toward the vehicle rear side, and is fixed to a vehicle body member positioned on the vehicle rear side; And the extension preventing bracket extends toward the vehicle front side of the anti-retraction bracket on the vehicle rear side, and is fixed on the fixed piece of the release bracket; and the extension portion And a movement allowing portion for moving downward from above the fixed piece.

  The reverse movement prevention device for the pedal device for a vehicle has a pedal bracket, an operation pedal, an intermediate lever, and a connection link, and the connection link is interlocked with the rotation of the operation pedal accompanying a stepping operation. The intermediate lever can be rotated via the vehicle, so that the output member can be displaced toward the front side of the vehicle. The reverse preventing device for the vehicle pedal device further includes a reverse preventing bracket and a fixing piece formed to extend toward the vehicle rear side, and is fixed to a vehicle body member located on the vehicle rear side. And a release bracket. The retraction prevention bracket has an extension part and a movement allowance part, and the extension part is extended toward the vehicle front side on the vehicle rear side of the retraction prevention bracket, It is fixed on a fixed piece. Therefore, according to the backward movement prevention device of the vehicle pedal device, the posture of the backward movement prevention bracket can be maintained by fixing the extension portion of the backward movement prevention bracket on the fixed piece of the separation bracket. Thereby, since the relative position of the 1st support shaft with respect to the 2nd support shaft can be maintained, the reverse movement prevention apparatus of the said pedal device for vehicles can perform step-on operation of an operation pedal appropriately.

  In the vehicle pedal device reverse prevention device, when the dash panel is displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision, the extension of the reverse prevention bracket is performed. Since the projecting portion moves downward from above the fixed piece of the separation bracket via the movement allowing portion, the retraction preventing bracket can be rotated around the second support shaft, and the first support shaft can be rotated with respect to the second support shaft. The relative position can be changed. Here, since the intermediate lever supported by the second support shaft is connected to the operation pedal supported by the first support shaft by the connection link, the relative position of the first support shaft with respect to the second support shaft. By changing the above, the operation pedal can be forcibly rotated around the first support shaft. That is, according to the reverse prevention device for the pedal device for a vehicle, the relative position of the first support shaft with respect to the second support shaft is changed in any of the oblique collision and the offset collision as well as the full lap collision. The operation pedal can be forcibly rotated toward the front side of the vehicle, so that the operation pedal can be prevented from being displaced toward the rear side of the vehicle.

  According to another aspect of the present invention, there is provided a vehicular pedal device retreat prevention device according to claim 1, wherein the vehicular pedal device retreat prevention device is provided on the vehicle rear side with respect to the release bracket. A collision bracket fixed to a member, and the collision bracket is inclined so as to be positioned at a position closer to the vehicle rear side than the extension portion of the retreat prevention bracket, and the dash panel is It has a guide surface for guiding the rear end of the retraction prevention bracket when displaced rearward.

  In the vehicular pedal device reverse prevention device, the collision bracket is fixed to the vehicle body member on the vehicle rear side with respect to the release bracket, and has a guide surface inclined so as to be positioned below the vehicle rear side. doing. According to the reverse preventing device for the pedal device for a vehicle, when the dash panel is displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision, the guide surface of the collision bracket The rear end portion of the back-prevention bracket can be guided downward to rotate the back-prevention bracket around the second support shaft. Thereby, the reverse prevention device for the vehicle pedal device can change the relative position of the first support shaft with respect to the second support shaft, and the stepped portion of the operation pedal is displaced to the rear side of the vehicle. It can be surely suppressed.

  According to another aspect of the present invention, there is provided a vehicular pedal apparatus for preventing a reverse movement of the vehicle, including a pedal bracket fixed to a dash panel on the front side of the vehicle and having a pair of side plates, and a step portion used for a stepping operation toward the front side of the vehicle. And an operation pedal that is rotatably supported by the first support shaft of the pedal bracket, and the vehicle of the stepped portion of the operation pedal when the dash panel is displaced to the rear side of the vehicle. An anti-reverse device that suppresses rearward displacement, and is fixed to a vehicle body member located above the first support shaft and on the vehicle rear side, and extends toward the vehicle rear side. A separation bracket having a fixed piece formed, and a collision bracket fixed to the vehicle body member on the vehicle rear side of the separation bracket, the pedal bracket, On the vehicle rear side of the pedal bracket, an extension portion is formed that extends toward the vehicle front side, and is fixed on the fixed piece of the release bracket. The extension portion moves downward from above the fixed piece. And the collision bracket is inclined so that the rear side of the vehicle is closer to the vehicle rear side than the extension portion of the pedal bracket, and the dash panel is It has a guide surface for guiding the rear end of the pedal bracket when displaced to the rear side.

  The retreat prevention device for the vehicle pedal device includes a pedal bracket and an operation pedal, and can perform a stepping operation for rotating the operation pedal around the first support shaft. The vehicular pedal device reverse preventing apparatus includes a detachment bracket fixed to a vehicle body member positioned above the first support shaft and on the vehicle rear side, and a vehicle rear side from the detachment bracket. And a collision bracket fixed to the vehicle body member, and the separation bracket includes a fixed piece formed to extend toward the vehicle rear side. The pedal bracket includes an extension portion and a movement allowance portion, and the extension portion is formed to extend toward the vehicle front side on the vehicle rear side of the pedal bracket, and It is fixed on a fixed piece. Therefore, according to the reverse movement prevention device for the pedal device for a vehicle, the posture of the pedal bracket can be maintained by fixing the extension portion of the pedal bracket on the fixing piece of the release bracket, and the operation pedal can be depressed. Can be performed appropriately.

  In the reverse prevention device for the vehicle pedal device, when the dash panel is displaced toward the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision, the guide surface of the collision bracket The extension part of the pedal bracket can be moved downward from above the fixed piece of the release bracket via the movement allowance part by moving the rear end part of the pedal bracket along That is, according to the reverse prevention device for the pedal device for a vehicle, the operation pedal can be forcibly rotated around the first support shaft in any of the oblique collision and the offset collision as well as the full lap collision. Therefore, it can suppress that the step part of an operation pedal displaces to the vehicle rear side.

  According to another aspect of the present invention, there is provided a vehicular pedal device reverse preventing apparatus according to any one of claims 1 to 3, wherein the movement permitting portion includes: The extension part is formed on both sides in the vehicle width direction with a width wider than the width of the fixed piece between the pair of side plates and the side edge of the extension part. To do.

  In the backward movement prevention device for the pedal device for a vehicle, the movement allowing portion may be disposed on both sides in the vehicle width direction with respect to the extending portion, between the pair of side plates and the side edge of the extending portion. A width wider than the width is provided. As a result, not only when the fixed piece moves relative to the extension part relative to the extension part as in the case of a full wrap collision, but also when the fixed piece moves relative to the extension part as in the case of an oblique collision or an offset collision. Even in the case of relative movement in the vehicle width direction, the extension portion can be moved downward from above the fixed piece via the movement allowing portion. In other words, in the vehicular pedal device reverse prevention device, it is possible to suppress the stepped portion of the operation pedal from being displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision. .

  According to another aspect of the present invention, there is provided a vehicular pedal device retreat prevention device according to any one of claims 1 to 3, wherein the movement allowance portion comprises: The extending portions are provided so that the upper edges of the pair of side plates are located below the lower surface of the fixing piece that supports and fixes the extending portions.

  In the vehicular pedal device reverse prevention device, the extension portion is arranged such that the upper edges of the pair of side plates are positioned below the lower surface of the fixed piece that supports and fixes the extension portion. Is formed. As a result, not only when the fixed piece moves relative to the extension part relative to the extension part as in the case of a full wrap collision, but also when the fixed piece moves relative to the extension part as in the case of an oblique collision or an offset collision. Even in the case of relative movement in the vehicle width direction, the extending portion can be moved downward from above the fixed piece via the movement allowing portion without contacting the side plate. In other words, in the vehicular pedal device reverse prevention device, it is possible to suppress the stepped portion of the operation pedal from being displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision. . Further, in this case, the width of the pair of side plates can be reduced, so that the reverse preventing device for the vehicle pedal device can be downsized as a whole.

  According to another aspect of the present invention, there is provided a vehicular pedal device retreat prevention device according to any one of claims 1 to 3, wherein the extension portion includes: The extension portion has a three-dimensional engagement portion, the detachable bracket has an upper fixed piece extending above the fixed piece with a predetermined gap, and the movement allowing portion is The extension portion is formed to be movable in the vehicle rear direction and the vehicle width direction by a gap between the upper surface of the fixed piece and the lower surface of the upper fixed piece. The upper surface of the fixed piece and the lower surface of the upper fixed piece Is formed in a concave shape corresponding to the three-dimensional shape of the engaging portion in the extending portion, and an engaging concave portion that engages with the engaging portion is formed.

  In the backward movement preventing device for the pedal device for a vehicle, the extension portion has a three-dimensional engagement portion at a tip of the extension portion, and the separation bracket is located above the fixed piece with a predetermined gap. And an upper fixing piece extending across. The movement allowing portion is formed such that the extension portion is movable in the vehicle rear direction and the vehicle width direction by a gap between the upper surface of the fixed piece and the lower surface of the upper fixed piece. And the engagement recessed part is formed in the upper surface of the said fixing piece, and the lower surface of the said upper side fixing piece. Therefore, according to the backward movement prevention device for the vehicle pedal device, the extending portion is disposed between the fixed piece and the upper fixed piece, and the engaging portion of the extending portion is engaged with the engaging recess. The extending portion can be fixed on the fixed piece. Further, according to the reverse preventing device for the pedal device for a vehicle, the movement allowance portion is configured such that the extension portion is located behind the vehicle and the vehicle width by a gap between the upper surface of the fixed piece and the lower surface of the upper fixed piece. Since it is formed to be movable in the direction, it is possible to suppress the stepped portion of the operation pedal from being displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision.

  The present invention includes a pedal bracket, an operation pedal, an intermediate lever, a connecting link, a retreat prevention bracket, and a release bracket. The detachment bracket has a fixed piece that extends toward the vehicle rear side, and is fixed to a vehicle body member that is positioned on the vehicle rear side. The retreat prevention bracket has an extension portion and a movement allowance portion, and is arranged to be rotatable around the second support shaft while holding the first support shaft. The extending portion extends toward the front side of the vehicle on the vehicle rear side of the retreat prevention bracket, and is fixed on the fixed piece of the separation bracket. If the dash panel is displaced to the rear side of the vehicle, whether it is a slanted collision or an offset collision, as well as a full-wrap collision, the extension part of the back-prevention bracket is fixed to the separation bracket via the movement allowance part. The bracket is moved downward from one side to rotate the retraction preventing bracket around the second support shaft. Thus, by changing the relative position of the first support shaft with respect to the second support shaft, the operation pedal can be forcibly rotated around the first support shaft, and the step portion of the operation pedal can be moved to the rear of the vehicle. Suppresses displacement to the side.

It is a side view showing a schematic structure of a brake pedal device concerning a 1st embodiment. It is an enlarged side view which shows the fixation structure of the retreat prevention bracket and separation bracket which concern on 1st Embodiment. It is an enlarged plan view which shows the fixing structure of the retreat prevention bracket and the detachment bracket according to the first embodiment. It is explanatory drawing which shows the operation | movement at the time of the collision of the brake pedal apparatus which concerns on 1st Embodiment. It is an enlarged side view which shows the detachment | leave operation | movement of the retraction prevention bracket from the detachment bracket which concerns on 1st Embodiment. It is an enlarged plan view which shows the removal operation | movement of the retraction prevention bracket from the separation bracket which concerns on 1st Embodiment. It is a side view which shows schematic structure of the brake pedal apparatus which concerns on 2nd Embodiment. It is an enlarged side view which shows the fixation structure of the retreat prevention bracket and separation bracket which concern on 2nd Embodiment. It is an enlarged plan view which shows the fixing structure of the retreat prevention bracket and the separation bracket according to the second embodiment. It is explanatory drawing which shows the operation | movement at the time of the collision of the brake pedal apparatus which concerns on 2nd Embodiment. It is an enlarged plan view which shows the detachment | leave operation | movement of the retraction prevention bracket from the detachment bracket which concerns on 2nd Embodiment. It is a side view which shows schematic structure of the brake pedal apparatus which concerns on 3rd Embodiment. It is an enlarged side view which shows the fixing structure of the pedal bracket and detachment bracket which concern on 3rd Embodiment. It is explanatory drawing which shows the operation | movement at the time of the collision of the brake pedal apparatus which concerns on 3rd Embodiment. It is an enlarged side view which shows the detachment | leave operation | movement of the pedal bracket from the detachment bracket which concerns on 3rd Embodiment.

(First embodiment)
Hereinafter, an embodiment (first embodiment) in which a vehicle pedal device reverse prevention device according to the present invention is applied to a brake pedal device 1 for a service brake will be described in detail with reference to the drawings.

(Schematic configuration of brake pedal device)
First, a schematic configuration of the brake pedal device 1 according to the first embodiment will be described in detail with reference to FIGS. 1 and 4 are side views showing a schematic configuration of the brake pedal device 1, and the pedal bracket 10 is shown by a virtual line (broken line) so that the inner structure thereof can be understood.

  The brake pedal device 1 according to the first embodiment includes a dash panel P that separates the engine room and the vehicle interior, and a vehicle body member (for example, instrument panel reinforcement) disposed on the vehicle rear side (driver's seat side) with respect to the dash panel P. A pedal bracket 10, an operation pedal 20, an intermediate lever 25, a connection link 30, a retraction prevention bracket 40, and a release bracket 50. The brake pedal device 1 generates a braking force on the vehicle by displacing the operating rod R of the brake booster B toward the front side of the vehicle when the operation pedal 20 is rotated by a stepping operation of the operation pedal 20. It is configured to let you.

  The brake booster B is integrally fixed to the front side of the dash panel P (that is, the engine room side), and has an operating rod R as an output member. When the operating rod R is displaced toward the vehicle front side, the brake booster B doubles the braking force transmitted through the operation pedal 20 and transmits the doubled braking force to the vehicle. The operating rod R is disposed so as to protrude from the dash panel P into the vehicle interior on the vehicle rear side, and is configured to be displaceable in the vehicle front-rear direction.

  As shown in FIG. 1, the instrument panel reinforcement I is disposed on the vehicle rear side (driver's seat side) with respect to the dash panel P, and constitutes a vehicle body member in the present invention. The instrument panel reinforcement I is generally less likely than the dash panel P to be displaced toward the rear of the vehicle when a heavy load is input from the front of the vehicle, such as during a collision.

  In the instrument panel reinforcement I, a separation bracket 50 and a collision bracket 60 are integrally fixed. The detachment bracket 50 is fastened and fixed to the instrument panel reinforcement I and the collision bracket 60 by bolts 62 and nuts 63, and fixes a rear end portion of the retreat prevention bracket 40 described later. The specific configuration of the separation bracket 50 will be described in detail later with reference to the drawings.

  The collision bracket 60 is fixed to the instrument panel reinforcement I on the vehicle rear side of the rear end portion of the retreat prevention bracket 40 and the separation bracket 50. The collision bracket 60 has a guide surface 61 that is inclined so as to be positioned downward as the vehicle rear side. When the heavy load is input due to a vehicle collision or the like and the rear end portion of the reverse movement prevention bracket 40 relatively moves rearward of the guide surface, the guide surface contacts and guides the rear end portion of the reverse movement prevention bracket 40. .

  The pedal bracket 10 is fixed to the vehicle compartment side of the dash panel P using a bolt or the like at the front portion of the vehicle, and includes a pair of side plates 11 that are opposed to each other at an interval in the vehicle width direction. ing. A second support shaft 13 is disposed on the side plate 11 of the pedal bracket 10.

  The first support shaft 12 is disposed between the pair of side plates 41 of the retreat prevention bracket 40 disposed on the pedal bracket 10 so as to extend substantially in parallel with the vehicle width direction. . The second support shaft 13 according to the first embodiment is disposed between the pair of side plates 11 in the pedal bracket 10 so as to extend substantially horizontally and substantially parallel to the vehicle width direction. As shown in FIG. 1 and the like, the second support shaft 13 is located on the vehicle front side with respect to the first support shaft 12.

  As shown in FIG. 1, the operation pedal 20 is supported by a first support shaft 12 so that the upper portion thereof is rotatable, and has a step portion 21 at a lower end portion. Therefore, the operation pedal 20 rotates around the first support shaft 12 when a stepping operation is performed using the step portion 21. In this case, the step portion 21 moves toward the front side of the vehicle.

  The intermediate lever 25 is rotatably supported by the second support shaft 13 disposed on the side plate 11 of the pedal bracket 10. The intermediate lever 25 extends upward from the position where the second support shaft 13 is disposed, and an operating rod R is coupled to the upper portion of the intermediate lever 25 via a clevis. Therefore, when the intermediate lever 25 rotates around the second support shaft 13, the operating rod R can be displaced in the vehicle front-rear direction. That is, according to the brake pedal device 1, the braking force can be generated via the brake booster B by pressing the operating rod R toward the vehicle front side by the intermediate lever 25.

  The connection link 30 connects the upper front portion of the operation pedal 20 and the rear portion of the intermediate lever 25 and is attached to the operation pedal 20 and the intermediate lever 25 so as to be rotatable. Since one end side of the connection link 30 is connected to the upper front portion of the operation pedal 20 via the connection pin 31, the connection link 30 rotates with respect to the operation pedal 20 around the connection pin 31. Can move. Further, since the other end side of the connection link 30 is connected to the rear side portion of the intermediate lever 25 via the connection pin 32, the connection link 30 is connected to the intermediate lever 25 around the connection pin 32. It can rotate with respect to it. Therefore, in the brake pedal device 1, the rotation of the operation pedal 20 around the first support shaft 12 can be transmitted to the intermediate lever 25 via the connection link 30. 2 It can be rotated around the support shaft 13.

  The retreat prevention bracket 40 is a steel plate member disposed along one surface of each side plate 11 of the pedal bracket 10, and is attached to the pedal bracket 10 by the second support shaft 13 disposed on the side plate 11 of the pedal bracket 10. It is attached so that it can rotate. The retraction prevention bracket 40 has a pair of side plates 41 extending along one surface of each side plate 11 of the pedal bracket 10. The reverse prevention bracket 40 is configured by bending a steel plate so as to connect the vehicle rear side of each side plate 41.

  The retraction prevention bracket 40 is located between the pair of side plates 41 at a position on the vehicle rear side of the second support shaft 13 and on the front side of the rear end portion of the retraction prevention bracket 40. 1 Support shaft 12 is held. That is, the retraction preventing bracket 40 functions to keep the relative positional relationship (distance) between the first support shaft 12 and the second support shaft 13 constant. Therefore, when the retraction preventing bracket 40 rotates around the second support shaft 13, the position of the first support shaft 12 changes as the retraction preventing bracket 40 rotates.

  Further, an extension part 45 and a movement allowance part 46 are formed at the rear end part of the retreat prevention bracket 40. The extension portion 45 is configured to fix the rear end portion of the backward movement prevention bracket 40 to the above-described detachment bracket 50, and the movement allowing portion 46 is provided at the rear of the backward movement prevention bracket 40 in a predetermined case. This is a configuration for allowing the end portion to move downward from the separation bracket 50. The extending portion 45 and the movement allowing portion 46 will be described in detail later with reference to the drawings.

  As shown in FIG. 1, the separation bracket 50 is a steel plate member whose upper part is fastened and fixed to the instrument panel reinforcement I and the collision bracket 60 by bolts 62 and nuts 63. Has at the bottom. The detachment bracket 50 is bent so as to extend forward from below the fastening fixing position with respect to the instrument panel reinforcement I or the like, and is further bent so as to extend downward from the front end portion thereof. The lower end portion is located on the vehicle front side with respect to the rear end portion of the retreat prevention bracket 40. The fixing piece 51 is formed as a protruding piece extending from the lower end portion toward the vehicle rear side, and supports the extension portion 45 of the retreat prevention bracket 40 from below and can be fixed by a fixing pin 55. Has been. A specific configuration of the separation bracket 50 will be described in detail later.

(Fixing structure of the retreat prevention bracket and the release bracket in the first embodiment)
Next, in the brake pedal device 1 according to the first embodiment, a fixing structure between the retreat prevention bracket 40 and the separation bracket 50 will be described in detail with reference to FIGS. 2 and 3.

  As described above, the retreat prevention bracket 40 is a steel plate member disposed along one surface of each side plate 11 of the pedal bracket 10 and is supported by the second support shaft 13 disposed on the side plate 11 of the pedal bracket 10. The pedal bracket 10 is rotatably attached.

  As shown in FIGS. 1 to 3, an extension portion 45 and a movement allowance portion 46 are formed at the rear end portion of the retreat prevention bracket 40. The extension portion 45 extends from the upper end portion on the rear side surface of the retreat prevention bracket 40 toward the vehicle front side. The extending portion 45 is fixed by being penetrated together with the fixing piece 51 by the fixing pin 55 in a state of being arranged on the fixing piece 51 of the detaching bracket 50.

  As shown in FIG. 3, the movement allowing portion 46 is formed between the side plates 11 in the retreat prevention bracket 40 on both sides in the vehicle width direction with respect to the extending portion 45. The movement allowance portions 46 according to the first embodiment are each formed with a width wider than the width of the fixing piece 51 in the detachment bracket 50 between the side plate 41 and the edge of the extension portion 45. . Therefore, in the brake pedal device 1 according to the first embodiment, the movement allowing portion 46 allows the downward movement of the extending portion 45 when the extending portion 45 moves in the vehicle width direction from above the fixed piece 51. Can do.

  The extension portion 45 of the reverse movement prevention bracket 40 is formed so as to extend from the rear side surface of the reverse movement prevention bracket 40 to the front of the vehicle, and the fixing piece 51 of the separation bracket 50 is located on the vehicle more than the front end of the extension portion 45. It is formed to extend from the front side toward the vehicle rear side (see FIGS. 1 to 3). Accordingly, when the backward movement prevention bracket 40 moves relative to the rear side of the vehicle with respect to the separation bracket 50 due to a collision or the like, the extension portion 45 moves relative to the rear side of the vehicle from the fixed piece 51. As a result, it can move downward.

  The separation bracket 50 is a steel plate member whose upper part is fastened and fixed to the instrument panel reinforcement I and the collision bracket 60 by bolts 62 and nuts 63. As shown in FIGS. 1 to 3, the separation bracket 50 is bent so as to extend forward from below the fastening and fixing position with respect to the instrument panel reinforcement I and the like, and further extends downward from the front end portion thereof. It is bent like this. The lower end portion is located on the vehicle front side with respect to the rear end portion of the retreat prevention bracket 40.

  The fixed piece 51 is formed as a protruding piece extending from the lower end portion of the separation bracket 50 located on the front side of the vehicle with respect to the front end of the extension portion 45 toward the rear side of the vehicle. Support from below. The fixing piece 51 is configured to be able to fix the extension portion 45 on the fixing piece 51 by being penetrated together with the extension portion 45 by the fixing pin 55. The brake pedal device 1 restricts the rotation of the backward movement prevention bracket 40 around the second support shaft 13 by fixing the extending portion 45 on the fixed piece 51, and realizes the stepping operation of the operation pedal 20. Yes.

  The fixing pin 55 is formed in a shaft shape, for example, from aluminum or the like, and is disposed so as to pass through the extending portion 45 of the retreat prevention bracket 40 and the fixing piece 51 of the separation bracket 50. When a predetermined load or more acts on the fixing pin 55 and breaks, the fixing of the backward movement prevention bracket 40 to the detachment bracket 50 is released. In this case, the retreat prevention bracket 40 is in a state of being rotatable with respect to the pedal bracket 10 around the second support shaft 13.

(Operation of each part in response to depressing operation pedal)
Next, the movement of each part when the operation pedal 20 is depressed in the brake pedal device 1 described above will be described.

  When a stepping operation is performed on the operation pedal 20, the step portion 21 is stepped on the front side of the vehicle, so that the operation pedal 20 rotates about the first support shaft 12. At this time, the upper portion of the operation pedal 20 rotates in a predetermined direction (clockwise in FIG. 1) about the first support shaft 12, so that the operation pedal 20 is rotated via the connection link 30. 25 is transmitted.

  Here, the 1st support shaft 12 is supporting the operation pedal 20 in the state arrange | positioned in the retreat prevention bracket 40 so that rotation is possible. The retraction preventing bracket 40 is supported so as to be rotatable around the second support shaft 13, but the extension portion 45 formed at the rear end portion is connected to the separation bracket 50 via the fixing pin 55. It is fixed on the fixed piece 51. Therefore, in the brake pedal device 1, even when the operation pedal 20 is depressed, the posture of the reverse prevention bracket 40 does not change, and the operation pedal 20 can be reliably depressed.

  Since the connection link 30 is connected to the rear side portion of the intermediate lever 25 via the connection pin 32, the intermediate lever 25 is connected to the second support shaft 13 as the operation pedal 20 rotates. And the upper part of the intermediate lever 25 is moved toward the vehicle front side. Since the operating rod R of the brake booster B is connected to the upper part of the intermediate lever 25 via a clevis, the brake pedal device 1 outputs the operating rod R in conjunction with the stepping operation of the operating pedal 20. The vehicle can be pressed in the direction (front side of the vehicle), and a braking force for the vehicle can be generated.

(Operation at the time of collision of the brake pedal device according to the first embodiment)
Next, the operation of the brake pedal device 1 at the time of a vehicle collision will be described in detail with reference to FIGS. When a large load is input from the front side of the vehicle due to a vehicle collision (including a full lap collision, a slanted collision, and an offset collision), the dash panel P is displaced at least to the rear side of the vehicle by the input large load. At this time, in the case of a full lap collision, since a large load accompanying the collision is input from the front side of the vehicle toward the rear side of the vehicle, the dash panel P is displaced toward the rear side of the vehicle due to the input large load.

  In the case of oblique collision or offset collision, the input load includes not only a component from the vehicle front side toward the vehicle rear side but also a component toward the vehicle width direction of the vehicle. In this case, since the large load due to the oblique collision and the offset collision is different from the case of the full lap collision, the dash panel P is not only displaced toward the rear side of the vehicle by the input large load, but also in the vehicle width direction. Will also be displaced.

  On the other hand, the instrument panel reinforcement I has a smaller displacement than the dash panel P even when a large load due to any of full lap collision, oblique collision and offset collision is input. Therefore, when a large load resulting from full lap collision, oblique collision and offset collision is input, the pedal bracket 10 and the reverse prevention bracket 40 fixed to the dash panel P, and the release bracket 50 fixed to the instrument panel reinforcement I The relative positional relationship of will change.

  Along with this, the relative positional relationship between the extending portion 45 and the fixed piece 51 also changes, so that the fixed pin 55 penetrating the extending portion 45 and the fixed piece 51 has a vehicle collision or the like. A large load resulting from the above acts via the extending portion 45 and the fixed piece 51. As a result, the fixing pin 55 is broken starting from the contact portion between the extending portion 45 and the fixing piece 51, so that the extending portion 45 has a large load caused by full wrap collision, oblique collision, offset collision, and the like. It moves from the fixed piece 51 in the direction of the action.

  For example, in the case of a full-wrap collision, when the fixing pin 55 is broken by a collision load, the extending portion 45 moves from the fixed piece 51 to the vehicle rear side. And when the front-end | tip of the extension part 45 moves to the vehicle rear side rather than the rear end of the fixed piece 51, the retreat prevention bracket 40 will be in the state which can be rotated around the 2nd support shaft 13. As shown in FIG.

  In addition, in the case of an oblique collision or an offset collision, when the fixing pin 55 is broken by a collision load, the extending portion 45 moves not only on the rear side of the vehicle but also in the vehicle width direction from above the fixing piece 51. Here, each of the movement allowing portions 46 according to the first embodiment is formed with a width wider than the width of the fixing piece 51 in the separation bracket 50 between the side plate 41 and the edge of the extending portion 45. Has been. Accordingly, when the extension part 45 moves in the vehicle width direction from above the fixed piece 51 and comes off from the fixed piece 51 (see FIG. 6), the extension part 45 moves downward via the movement allowance part 46. Therefore, the backward movement prevention bracket 40 is in a state of being rotatable around the second support shaft 13.

  Even after the rearward prevention bracket 40 becomes rotatable about the second support shaft 13, the rearward prevention bracket 40 moves at least toward the vehicle rear side according to the displacement of the dash panel P due to the collision load. I will do it. Here, since the collision bracket 60 is fixed to the instrument panel reinforcement I, the guide surface 61 of the collision bracket 60 is positioned behind the retreat prevention bracket 40. Since the guide surface 61 is inclined so as to be positioned downward as the vehicle rear side, the rear end portion of the retreat prevention bracket 40 comes into contact with the guide surface 61 along with the movement toward the vehicle rear side. It moves downward along 61. Thereby, the retreat prevention bracket 40 is surely rotated around the second support shaft 13 by cooperating with the guide surface 61 of the collision bracket 60.

  As shown in FIG. 4, the first support shaft 12 moves downward on the rear side of the vehicle by the rotation of the backward movement prevention bracket 40 around the second support shaft 13. Since the first support shaft 12 supports the operation pedal 20 so as to be rotatable, and the operation pedal 20 is connected to the intermediate lever 25 via the connection link 30, the operation pedal 20 has the second support. When the relative positional relationship between the shaft 13 and the first support shaft 12 changes, the shaft 13 can be forcibly rotated to move the step portion 21 toward the front side of the vehicle.

  That is, according to the brake pedal device 1, with the collision of the vehicle including the full lap collision, the oblique collision, and the offset collision, the retraction preventing bracket 40 is fixed to the release bracket 50 and the retraction preventing bracket 40 is moved to the second position. By rotating around the support shaft 13, the relative positional relationship between the first support shaft 12 and the second support shaft 13 can be changed, and the operation pedal 20 can be forcibly rotated. . Specifically, as shown in FIG. 4, the brake pedal device 1 can be operated with the operation pedal 20 because the stepped portion 21 of the operation pedal 20 can be turned around the first support shaft 12 so as to go to the vehicle front side. It can suppress that the step part 21 of the pedal 20 reverse | retreats to the driver's seat side.

  As described above, the brake pedal device 1 according to the first embodiment includes the pedal bracket 10, the operation pedal 20, the intermediate lever 25, and the connection link 30, and the operation pedal accompanying the stepping operation. The intermediate lever 25 can be rotated via the connecting link 30 in conjunction with the rotation of the drive link 20, so that the operating rod R of the brake booster B can be displaced to the vehicle front side.

  The brake pedal device 1 according to the first embodiment has a reverse prevention bracket 40 and a separation bracket 50. The detachment bracket 50 has a fixed piece 51 extending toward the vehicle rear side, and is fixed to the instrument panel reinforcement I and the like located on the vehicle rear side. The retraction prevention bracket 40 has an extension part 45 and a movement allowance part 46, and the extension part 45 extends toward the vehicle front side on the vehicle rear side of the retraction prevention bracket 40, It is fixed on the fixed piece 51 of the release bracket 50. Therefore, according to the brake pedal device 1, the extension portion 45 of the reverse movement prevention bracket 40 is fixed on the fixing piece 51 of the release bracket 50, whereby the posture of the reverse movement prevention bracket 40 can be maintained. Thereby, since the relative position of the 1st support shaft 12 with respect to the 2nd support shaft 13 can be maintained, the said brake pedal apparatus 1 can perform stepping-on operation of the operation pedal 20 appropriately.

  In the brake pedal device 1, when the dash panel P is displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision, the extension portion of the reverse prevention bracket 40 is provided. 45 moves downward from above the fixed piece 51 of the detachable bracket 50 via the movement allowing portion 46, so that the retraction preventing bracket 40 can be rotated around the second support shaft 13. The relative position of the first support shaft 12 with respect to can be changed. Here, since the intermediate lever 25 supported by the second support shaft 13 is connected to the operation pedal 20 supported by the first support shaft 12 by the connection link 30, the first support for the second support shaft 13 is provided. By changing the relative position of the shaft 12, the operation pedal 20 can be forcibly rotated around the first support shaft 12. That is, according to the brake pedal device 1, the relative position of the first support shaft 12 with respect to the second support shaft 13 is changed in any of the oblique collision and the offset collision as well as the full lap collision, and the operation is performed. The pedal 20 can be forcibly rotated toward the front side of the vehicle, so that the stepped portion 21 of the operation pedal 20 can be prevented from being displaced toward the rear side of the vehicle.

  In the brake pedal device 1, the collision bracket 60 is fixed to the instrument panel reinforcement I on the rear side of the vehicle with respect to the separation bracket 50 and has a guide surface 61. The guide surface 61 is inclined so as to be positioned downward as the vehicle rear side. Therefore, as shown in FIGS. 4 and 5, according to the brake pedal device 1, the dash panel P is displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision. In this case, the rear end portion of the backward movement prevention bracket 40 can be guided downward by the guide surface 61 of the collision bracket 60, and the backward movement prevention bracket 40 can be rotated around the second support shaft 13. Thereby, the said brake pedal apparatus 1 can change the relative position of the 1st support shaft 12 with respect to the 2nd support shaft 13, and the step part 21 of the operation pedal 20 is displaced to the vehicle rear side. It can be surely suppressed.

  Further, the movement allowing portion 46 according to the first embodiment is configured such that the fixed piece is disposed between the pair of side plates 41 and the side edges of the extending portion 45 on both sides in the vehicle width direction with respect to the extending portion 45. A width wider than 51 is provided (see FIG. 6). As a result, not only when the fixed piece 51 moves relative to the extending portion 45 in the vehicle front-rear direction as in a full-wrap collision, but the fixed piece 51 extends in the extended portion as in an oblique collision or an offset collision. Even when moving relative to 45 in the vehicle width direction, the extending portion 45 can be moved downward from above the fixed piece 51 via the movement allowing portion 46. That is, in the brake pedal device 1, it is possible to suppress the stepped portion 21 of the operation pedal 20 from being displaced toward the rear of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision.

(Second Embodiment)
Next, a schematic configuration of a brake pedal device 1 according to an embodiment (second embodiment) different from the first embodiment described above will be described in detail with reference to FIGS. 7 to 11. The brake pedal device 1 according to the second embodiment is a so-called link type brake pedal device 1, similar to the brake pedal device 1 according to the first embodiment, and includes a pedal bracket 10, an operation pedal 20, The intermediate lever 25, the connection link 30, the retreat prevention bracket 40, the separation bracket 50, and the collision bracket 60 are provided. Therefore, in the following description, the description of the same configuration as that of the first embodiment is omitted, and a different configuration will be described in detail.

(Schematic configuration of the brake pedal device according to the second embodiment)
First, a schematic configuration of the brake pedal device 1 according to the second embodiment will be described in detail with reference to FIGS. 7 to 9.

  Also in the brake pedal device 1 according to the second embodiment, the pedal bracket 10 is fixed to the passenger compartment side of the dash panel P using bolts or the like at the front portion of the vehicle, and is opposed to the vehicle width direction with an interval. A pair of side plates 11 is provided. The pedal bracket 10 supports the second support shaft 13 by a pair of side plates 11 as in the first embodiment.

  Also in the second embodiment, the second support shaft 13 is disposed between the pair of side plates 11 in the pedal bracket 10 so as to extend substantially horizontally and substantially parallel to the vehicle width direction. The first support shaft 12 according to the second embodiment is located on the vehicle front side with respect to the second support shaft 13 and is disposed so as to extend in parallel with the second support shaft 13. Similar to the first embodiment, the first support shaft 12 extends between the side plates 41 of the retreat prevention bracket 40 so as to extend substantially horizontally and substantially parallel to the vehicle width direction.

  The operation pedal 20 is rotatably supported by a first support shaft 12 positioned on the vehicle front side of the second support shaft 13 and has a step portion 21 at a lower end portion. Therefore, the operation pedal 20 rotates around the first support shaft 12 when a stepping operation is performed using the step portion 21.

  As shown in FIG. 7, the intermediate lever 25 is rotatably supported at its lower end portion by a second support shaft 13 disposed on the vehicle rear side of the pedal bracket 10 and extends upward. Yes. An operating rod R is connected to the upper end of the intermediate lever 25 via a clevis. The connection link 30 connects the upper rear portion of the operation pedal 20 and the lower front portion of the intermediate lever 25, and is attached to the operation pedal 20 and the intermediate lever 25 so as to be rotatable.

  Similar to the first embodiment, the retraction preventing bracket 40 according to the second embodiment is a steel plate member disposed along one surface of each side plate 11 of the pedal bracket 10, and includes a pair of side plates 41 and an extension. A portion 45 and a movement allowing portion 46. The retreat prevention bracket 40 is attached to the pedal bracket 10 so as to be rotatable by a second support shaft 13 disposed on the side plate 11 of the pedal bracket 10. The reverse prevention bracket 40 is configured by bending a steel plate so as to connect the vehicle rear side of each side plate 41.

  The retraction prevention bracket 40 holds the first support shaft 12 across the pair of side plates 41 on the vehicle front side with respect to the second support shaft 13. That is, the retraction preventing bracket 40 functions to keep the relative positional relationship (distance) between the first support shaft 12 and the second support shaft 13 constant. Therefore, also in the second embodiment, when the retraction preventing bracket 40 rotates around the second support shaft 13, the position of the first support shaft 12 changes as the retraction preventing bracket 40 rotates.

  Also in the second embodiment, an extension portion 45 and a movement allowance portion 46 are formed at the rear end portion of the retreat prevention bracket 40. The extending portion 45 and the movement allowing portion 46 according to the second embodiment will be described in detail later with reference to the drawings.

  As shown in FIGS. 7 to 11, the detachment bracket 50 according to the second embodiment is made of a steel plate whose upper part is fastened and fixed to the instrument panel reinforcement I and the collision bracket 60 by bolts 62 and nuts 63. It is a member and has a fixed piece 51 at its lower part. Since the structure of the detachment bracket 50 is the same as that of the first embodiment, the specific description thereof is omitted.

  The collision bracket 60 according to the second embodiment is fastened and fixed to the instrument panel reinforcement I and the like by bolts 62 and nuts 63 on the vehicle rear side of the rear end portion of the retreat prevention bracket 40 and the separation bracket 50. Yes. The collision bracket 60 has a guide surface 61 that is inclined so as to be positioned downward as the vehicle rear side.

(Fixing structure of the retreat prevention bracket and the release bracket in the second embodiment)
Next, in the brake pedal device 1 according to the second embodiment, a structure for fixing the reverse movement prevention bracket 40 and the separation bracket 50 will be described in detail with reference to FIGS. 8 and 9.

  As described above, the retreat prevention bracket 40 is a steel plate member disposed along one surface of each side plate 11 of the pedal bracket 10 and is supported by the second support shaft 13 disposed on the side plate 11 of the pedal bracket 10. The pedal bracket 10 is rotatably attached.

  As shown in FIGS. 7 to 9, an extension portion 45 and a movement allowance portion 46 are formed at the rear end portion of the retreat prevention bracket 40. The extension portion 45 extends from the upper end portion on the rear side surface of the retreat prevention bracket 40 toward the vehicle front side. The extending portion 45 is fixed by being penetrated together with the fixing piece 51 by the fixing pin 55 in a state of being arranged on the fixing piece 51 of the detaching bracket 50.

  As shown in FIG. 8, the extending portion 45 according to the second embodiment is formed at a position spaced apart from the upper edge of each side plate 41 in the receding prevention bracket 40 by an interval equal to or larger than the plate thickness of the fixed piece 51. ing. Therefore, when the extending portion 45 is fixed on the fixed piece 51, the lower surface of the fixed piece 51 is positioned above the upper edge of each side plate 41 in the retreat prevention bracket 40.

  Therefore, in the brake pedal device 1 according to the second embodiment, the extension piece 45 does not come into contact with the side plates 41 when the extension portion 45 moves in the vehicle width direction from above the extension piece 51. The part 45 is removed from the fixed piece 51, and the extension part 45 can be moved downward. That is, the movement allowing portion 46 according to the second embodiment is formed by a space formed between the upper edge of the side plate 41 in the retreat prevention bracket 40 and the lower surface of the extending portion 45.

(Operation at the time of collision of the brake pedal device according to the second embodiment)
Next, the operation of the brake pedal device 1 according to the second embodiment during a vehicle front collision will be described in detail with reference to FIGS. 10 and 11. Also in the second embodiment, when a large load resulting from full lap collision, oblique collision and offset collision is input, the pedal bracket 10 and the reverse movement prevention bracket 40 fixed to the dash panel P and the instrument panel reinforcement I are fixed. The relative positional relationship with the detached bracket 50 changes as in the first embodiment.

  At this time, since the relative positional relationship between the extending portion 45 and the fixed piece 51 also changes, the fixing pin 55 penetrating the extending portion 45 and the fixed piece 51 has a large load caused by a vehicle collision or the like. However, it acts via the extension part 45 and the fixed piece 51. As a result, the fixing pin 55 is broken starting from the contact portion between the extending portion 45 and the fixing piece 51, so that the extending portion 45 has a large load caused by full wrap collision, oblique collision, offset collision, and the like. Move in the direction of action.

  For example, in the case of a full-wrap collision, when the fixing pin 55 is broken by a collision load, the extending portion 45 moves from the fixed piece 51 to the vehicle rear side. And when the front-end | tip of the extension part 45 moves to the vehicle rear side rather than the rear end of the fixed piece 51, the retreat prevention bracket 40 will be in the state which can be rotated around the 2nd support shaft 13. As shown in FIG.

  In addition, in the case of an oblique collision or an offset collision, when the fixing pin 55 is broken by a collision load, the extending portion 45 moves not only on the rear side of the vehicle but also in the vehicle width direction from above the fixing piece 51. Here, the movement allowance part 46 according to the second embodiment is formed by a space formed between the upper edge of the side plate 41 in the retreat prevention bracket 40 and the lower surface of the extension part 45. Therefore, in 2nd Embodiment, when the extension part 45 moves to the vehicle width direction from on the fixed piece 51, the fixed piece 51 does not contact each side plate 41 (refer FIG. 11), and the extension part 45 is removed from the fixed piece 51, the extension portion 45 can be moved downward, and the retreat prevention bracket 40 can be rotated around the second support shaft 13.

  Also in the second embodiment, the backward movement prevention bracket 40 further moves at least toward the vehicle rear side in accordance with the displacement of the dash panel P accompanying the collision load. As a result, the rear end portion of the retreat prevention bracket 40 comes into contact with the guide surface 61 of the collision bracket 60, so that the rear end portion of the retreat prevention bracket 40 moves downward along the guide surface 61. (See FIG. 10). Thereby, the retreat prevention bracket 40 is surely rotated around the second support shaft 13 by cooperating with the guide surface 61 of the collision bracket 60.

  The first support shaft 12 moves upward on the front side of the vehicle by the rotation of the backward movement prevention bracket 40 around the second support shaft 13. Since the first support shaft 12 supports the operation pedal 20 so as to be rotatable, and the operation pedal 20 is connected to the intermediate lever 25 via the connection link 30, the operation pedal 20 has the second support. When the relative positional relationship between the shaft 13 and the first support shaft 12 changes, the shaft 13 can be forcibly rotated to move the step portion 21 toward the front side of the vehicle.

  That is, according to the brake pedal device 1, with the collision of the vehicle including the full lap collision, the oblique collision, and the offset collision, the retraction preventing bracket 40 is fixed to the release bracket 50 and the retraction preventing bracket 40 is moved to the second position. By rotating around the support shaft 13, the relative positional relationship between the first support shaft 12 and the second support shaft 13 can be changed, and the operation pedal 20 can be forcibly rotated. Specifically, as shown in FIG. 10, the brake pedal device 1 can be operated by operating the first support shaft 12 so that the step portion 21 of the operation pedal 20 is directed toward the front side of the vehicle. It can suppress that the step part 21 of the pedal 20 reverse | retreats to the driver's seat side.

  As described above, the brake pedal device 1 according to the second embodiment includes the pedal bracket 10, the operation pedal 20, the intermediate lever 25, and the connecting link 30, as in the first embodiment. Thus, the intermediate lever 25 can be rotated via the connecting link 30 in conjunction with the rotation of the operation pedal 20 accompanying the stepping operation, and thus the operating rod R of the brake booster B can be displaced to the front side of the vehicle. .

  The brake pedal device 1 according to the second embodiment includes a reverse prevention bracket 40 and a release bracket 50. The detachment bracket 50 has a fixed piece 51 extending toward the vehicle rear side, and is fixed to the instrument panel reinforcement I and the like located on the vehicle rear side. The retraction prevention bracket 40 has an extension part 45 and a movement allowance part 46, and the extension part 45 extends toward the vehicle front side on the vehicle rear side of the retraction prevention bracket 40, It is fixed on the fixed piece 51 of the release bracket 50. Therefore, according to the brake pedal device 1, the extension portion 45 of the reverse movement prevention bracket 40 is fixed on the fixing piece 51 of the release bracket 50, whereby the posture of the reverse movement prevention bracket 40 can be maintained. Thereby, the said brake pedal apparatus 1 can perform stepping-on operation of the operation pedal 20 appropriately.

  In the brake pedal device 1, when the dash panel P is displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision, the extension portion of the reverse prevention bracket 40 is provided. 45 moves downward from above the fixed piece 51 of the detachable bracket 50 via the movement allowing portion 46. Thereby, the retreat prevention bracket 40 can be rotated around the second support shaft 13, and the relative position of the first support shaft 12 with respect to the second support shaft 13 can be changed. Here, since the intermediate lever 25 supported by the second support shaft 13 is connected to the operation pedal 20 supported by the first support shaft 12 by the connection link 30, the first support for the second support shaft 13 is provided. By changing the relative position of the shaft 12, the operation pedal 20 can be forcibly rotated around the first support shaft 12. That is, according to the brake pedal device 1, the relative position of the first support shaft 12 with respect to the second support shaft 13 is changed in any of the oblique collision and the offset collision as well as the full lap collision, and the operation is performed. The pedal 20 can be forcibly rotated toward the front side of the vehicle, so that the stepped portion 21 of the operation pedal 20 can be prevented from being displaced toward the rear side of the vehicle.

  In the brake pedal device 1, the collision bracket 60 is fixed to the instrument panel reinforcement I on the rear side of the vehicle with respect to the separation bracket 50 and has a guide surface 61. The guide surface 61 is inclined so as to be positioned downward as the vehicle rear side. Therefore, as shown in FIG. 10, according to the brake pedal device 1, when the dash panel P is displaced to the rear side of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision, With the guide surface 61 of the collision bracket 60, the rear end portion of the backward movement preventing bracket 40 can be guided downward, and the backward movement preventing bracket 40 can be rotated around the second support shaft 13. Thereby, the said brake pedal apparatus 1 can change the relative position of the 1st support shaft 12 with respect to the 2nd support shaft 13, and the step part 21 of the operation pedal 20 is displaced to the vehicle rear side. It can be surely suppressed.

  In the second embodiment, the movement allowance portion 46 is configured so that the upper edges of the pair of side plates 41 are located below the lower surface of the fixed piece 51 that supports and fixes the extension portion 45. Is formed. In other words, the extending portion 45 is formed at a position spaced apart from the upper edge of each side plate 41 in the receding prevention bracket 40 by a distance equal to or larger than the plate thickness of the fixed piece 51, and is allowed to move according to the second embodiment. The portion 46 is formed by a space formed between the upper edge of the side plate 41 in the retreat prevention bracket 40 and the lower surface of the extending portion 45.

  As a result, not only when the fixed piece 51 moves relative to the extending portion 45 in the vehicle front-rear direction as in a full-wrap collision, but the fixed piece 51 extends in the extended portion as in an oblique collision or an offset collision. Even when moving in the vehicle width direction relative to 45, the extending portion 45 is moved downward from above the fixed piece 51 via the movement allowing portion 46 without contacting the side plate 41. be able to. That is, in the brake pedal device 1, it is possible to suppress the stepped portion 21 of the operation pedal 20 from being displaced toward the rear of the vehicle in any of the oblique collision and the offset collision as well as the full lap collision. Further, in this case, since the width of the pair of side plates 41 can be reduced, the reverse prevention bracket 40 can be downsized in the vehicle width direction, and the brake pedal device 1 can be downsized as a whole. be able to.

(Third embodiment)
Subsequently, a schematic configuration of the brake pedal device 1 according to an embodiment (third embodiment) different from the first embodiment and the second embodiment described above will be described in detail with reference to FIGS. 12 to 15.

(Schematic configuration of the brake pedal device according to the third embodiment)
As shown in FIG. 12, the brake pedal device 1 according to the third embodiment includes a pedal bracket 10 and an operation pedal 20, unlike the first and second embodiments.

  The pedal bracket 10 according to the third embodiment is fixed to the vehicle compartment side of the dash panel P using bolts or the like at the front portion of the vehicle, and a pair of side plates 11 facing each other with a gap in the vehicle width direction. It is comprised. The pedal bracket 10 extends upward toward the rear side of the vehicle, and has an extending portion 15 and a movement allowing portion 16 at the rear end portion. Therefore, the pedal bracket 10 according to the third embodiment is fixed to the dash panel P on the front side of the vehicle, and fixed to the release bracket 50 fastened to the instrument panel reinforcement I or the like on the rear side of the vehicle.

  A first support shaft 12 is disposed on each side plate 11 of the pedal bracket 10. The first support shaft 12 is disposed between the pair of side plates 11 so as to be substantially horizontal and substantially parallel to the vehicle width direction, and is located above the rear side of the vehicle in the pedal bracket 10. . The first support shaft 12 is positioned on the vehicle rear side above the position where the pedal bracket 10 is fixed to the dash panel P, and below the position where the pedal bracket 10 is fixed to the release bracket 50 (that is, the position of the extending portion 15). It is located on the front side of the vehicle.

  As shown in FIG. 12, the operation pedal 20 is supported by the first support shaft 12 so that the upper portion thereof is rotatable, and has a step portion 21 at the lower end portion. Therefore, the operation pedal 20 rotates around the first support shaft 12 when a stepping operation is performed using the step portion 21. By this stepping operation, the step portion 21 moves toward the front side of the vehicle.

  Here, an operating rod R is coupled to the operation pedal 20 according to the third embodiment between the first support shaft 12 and the step portion 21 via a clevis. Accordingly, when the operation pedal 20 rotates around the first support shaft 12, the operating rod R can be displaced in the vehicle longitudinal direction. That is, according to the brake pedal device 1, a braking force can be generated via the brake booster B by pressing the operating rod R toward the vehicle front side by turning the operation pedal 20.

  In the third embodiment as well, the separation bracket 50 and the collision bracket 60 are fixed to the instrument panel reinforcement I. The collision bracket 60 according to the third embodiment has the same configuration as that of the first embodiment and the second embodiment, and has a guide surface 61. Therefore, the description regarding the collision bracket 60 is omitted.

  As in the first and second embodiments, the separation bracket 50 according to the third embodiment is fastened and fixed to the instrument panel reinforcement I and the collision bracket 60 by bolts 62 and nuts 63. It is a steel plate member and has a fixed piece 51 at its lower part. A specific configuration of the separation bracket 50 according to the third embodiment will be described in detail later.

(Fixed structure of pedal bracket and release bracket in the third embodiment)
Next, in the brake pedal device 1 according to the third embodiment, a fixing structure between the pedal bracket 10 and the release bracket 50 will be described in detail with reference to FIGS. 12 and 13.

  As shown in FIGS. 12 and 13, an extension portion 15 is formed at the rear end portion of the pedal bracket 10. The extension portion 15 extends from the upper end portion on the rear side surface of the pedal bracket 10 toward the vehicle front side, and has an engagement portion 15A at the tip thereof. The engaging portion 15A is formed in a substantially spherical shape at the distal end portion of the extending portion 15, and is engaged with an engaging recess 53 formed in a later-described release bracket 50, thereby extending the extending portion 15. Is fixed on the fixing piece 51.

  The separation bracket 50 according to the third embodiment includes an upper fixing piece 52 that is bent so as to extend forward from below the fastening fixing position with respect to the instrument panel reinforcement I or the like. The release bracket 50 is bent so as to extend downward from the front end portion of the upper fixed piece 52, and has a fixed piece 51 at the lower end thereof. The fixing piece 51 according to the third embodiment is formed as a protruding piece extending toward the vehicle rear side, and abuts against the extension portion 15 of the pedal bracket 10 from below. That is, in the detachment bracket 50 according to the third embodiment, the fixed piece 51 and the upper fixed piece 52 extend substantially in parallel in the vertical direction with an interval therebetween.

  As shown in FIG. 13, in the third embodiment, the extension portion 15 of the pedal bracket 10 is disposed between the fixed piece 51 and the upper fixed piece 52 so that it does not come off when the operation pedal 20 is depressed. Firmly sandwiched between the two. The upper surface of the fixed piece 51 is in contact with the lower surface of the extending portion 15, and the lower surface of the upper fixed piece 52 is in contact with the upper surface of the extending portion 15. By adjusting the distance between the fixed piece 51 and the upper fixed piece 52, the surface pressure acting on the extending portion 15 can be adjusted, and the rear end portion of the pedal bracket 10 can be firmly fixed.

  An engaging recess 53 is formed on the upper surface of the fixed piece 51 and the lower surface of the upper fixed piece 52. The engagement recess 53 is formed in a portion where the engagement portion 15A of the extension portion 15 abuts when the rear end portion of the pedal bracket 10 is fixed by the release bracket 50, and the shape of the engagement portion 15A. Depending on (substantially spherical), it is recessed in a hemisphere. In the third embodiment, the rear end portion of the pedal bracket 10 is further strengthened with respect to the release bracket 50 by the cooperation of the engagement portion 15A of the extension portion 15 and the engagement recess 53 of the release bracket 50. Can be fixed.

  In the third embodiment, unlike the first embodiment and the second embodiment, the extending portion 15 is not fixed to the fixed piece 51 by using a fixing pin, and the fixed piece 51 and the upper fixed piece 52 are not fixed. And are fixed by engaging the engaging portion 15A and the engaging recess 53. The fixing of the pedal bracket 10 to the release bracket 50 in the third embodiment does not come off due to a load during normal use such as a stepping operation of the operation pedal 20, but when a heavy load due to a vehicle collision or the like is applied. Is set to deviate.

  As shown in FIGS. 12 to 15, in the detachment bracket 50, the fixed piece 51 and the upper fixed piece 52 are connected on the vehicle front side by a steel plate constituting the detachment bracket 50, but in the vehicle width direction side and the vehicle rear side. The sides are separated from each other. Therefore, the extension part 15 arrange | positioned between the fixed piece 51 and the upper side fixed piece 52 can move to a vehicle width direction and a vehicle rear side, when a collision load acts. That is, in the third embodiment, the movement allowing portion 16 is configured by a space formed between the fixed piece 51 and the upper fixed piece 52.

(Operation of the brake pedal device according to the third embodiment at the time of forward collision)
Next, the operation of the brake pedal device 1 according to the third embodiment at the time of a vehicle front collision will be described in detail with reference to FIGS. 14 and 15. Also in the third embodiment, when a large load resulting from full lap collision, oblique collision and offset collision is input, the pedal bracket 10 fixed to the dash panel P and the release bracket 50 fixed to the instrument panel reinforcement I The relative positional relationship changes in the same manner as in the first and second embodiments.

  At this time, since the relative positional relationship between the extended portion 45 and the fixed piece 51 and the upper fixed piece 52 also changes, the engaging portion 15A of the extended portion 15 has a large load caused by a vehicle collision or the like. Due to this action, the engagement bracket 53 comes out of the engagement recess 53. As a result, the extending portion 15 moves from between the fixed piece 51 and the upper fixed piece 52 in the direction of application of a large load due to a full wrap collision, a slanted collision, an offset collision, or the like.

  For example, in the case of a full lap collision, the extending portion 15 moves from between the fixed piece 51 and the upper fixed piece 52 to the vehicle rear side due to the collision load. On the other hand, in the case of an oblique collision or an offset collision, the extending portion 15 moves not only from the rear side of the vehicle but also in the vehicle width direction due to the collision load from between the fixed piece 51 and the upper fixed piece 52. In any case, the extending portion 15 is removed from the fixed piece 51, and the extending portion 45 can be moved downward.

  Thereafter, the pedal bracket 10 further moves to at least the vehicle rear side according to the displacement of the dash panel P accompanying the collision load. As a result, the rear end portion of the pedal bracket 10 comes into contact with the guide surface 61 of the collision bracket 60, so that the rear end portion of the pedal bracket 10 moves downward along the guide surface 61 (see FIG. 14).

  As the rear end portion of the pedal bracket 10 moves downward toward the rear side of the vehicle, the pedal bracket 10 is bent toward the rear side of the vehicle. In conjunction with this, since the first support shaft 12 moves downward in the rear side of the vehicle, the operation pedal 20 is forcibly rotated around the first support shaft 12 and the step portion 21 is moved to the vehicle. It can be moved toward the front side.

  That is, according to the brake pedal device 1, the pedal bracket 10 is deformed by releasing the fixation of the pedal bracket 10 with respect to the release bracket 50 in accordance with a vehicle collision including a full lap collision, a diagonal collision, and an offset collision. The position of the first support shaft 12 can be changed, so that the operation pedal 20 can be forcibly rotated. Specifically, as shown in FIG. 14, the brake pedal device 1 can be operated with the operation pedal 20 because the stepped portion 21 of the operation pedal 20 can be turned around the first support shaft 12 so as to go to the vehicle front side. It can suppress that the step part 21 of the pedal 20 reverse | retreats to the driver's seat side.

  The brake pedal device 1 includes a pedal bracket 10 and an operation pedal 20, and can perform a stepping operation for rotating the operation pedal 20 around the first support shaft 12. The brake pedal device 1 includes a release bracket 50 fixed to an instrument panel reinforcement I located above the first support shaft 12 and on the vehicle rear side, and a vehicle rear side than the release bracket 50. And a collision bracket 60 fixed to the instrument panel reinforcement I on the side.

  The separation bracket 50 has a fixed piece 51 that extends toward the rear side of the vehicle. The pedal bracket 10 has an extending portion 15. The extension portion 15 is formed to extend toward the vehicle front side on the vehicle rear side of the pedal bracket 10, and is fixed on the fixed piece 51 of the release bracket 50. Therefore, according to the brake pedal device 1, the posture of the pedal bracket 10 can be maintained by fixing the extending portion 15 of the pedal bracket 10 on the fixing piece 51 of the release bracket 50, and the operation pedal 20. The stepping-in operation can be performed appropriately.

  In the brake pedal device 1, when the dash panel P is displaced to the rear side of the vehicle, not only in a full lap collision but also in a diagonal collision and an offset collision, the guide surface 61 of the collision bracket 60 is applied. Accordingly, by moving the rear end portion of the pedal bracket 10, the extension portion 15 of the pedal bracket 10 can be moved downward from above the fixed piece 51 of the release bracket 50 via the movement allowance portion 16. That is, according to the brake pedal device 1, the operation pedal 20 can be forcibly rotated around the first support shaft 12 in any of the oblique collision and the offset collision as well as the full lap collision. The displacement of the stepped portion 21 of the operation pedal 20 toward the rear side of the vehicle can be suppressed.

  In the third embodiment, the extending portion 15 has a three-dimensional engaging portion 15A at the tip of the extending portion 15, and the detaching bracket 50 has a predetermined gap above the fixed piece 51. And an upper fixing piece 52 extending with a gap therebetween. The movement allowing portion 16 is formed such that the extending portion 15 is movable in the vehicle rear direction and the vehicle width direction by a gap between the upper surface of the fixed piece 51 and the lower surface of the upper fixed piece 52. An engagement recess 53 is formed on the upper surface of the fixed piece 51 and the lower surface of the upper fixed piece 52.

  Therefore, according to the brake pedal device 1, the extending portion 15 is disposed between the fixed piece 51 and the upper fixed piece 52, and the engaging portion 15 </ b> A of the extending portion 15 is engaged with the engaging recess 53. Thus, the extending portion 15 can be fixed on the fixing piece 51. Further, according to the brake pedal device 1, the movement allowing portion 16 is formed by the gap between the upper surface of the fixed piece 51 and the lower surface of the upper fixed piece 52. It is possible to suppress displacement of the stepped portion 21 of the operation pedal 20 toward the rear side of the vehicle in any of a collision and an offset collision.

Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the present invention is applied to the ordinary brake pedal device 1, but is not limited to this mode. The present invention can also be applied to an accelerator pedal, a clutch pedal, or the like as long as it is a vehicle pedal device.
Moreover, the fixing structure of the pedal bracket 10 or the retreat prevention bracket 40 with respect to the separation bracket 50 in the above-described embodiment is an example, and can be used in various combinations.

  That is, in the link type vehicle pedal device in which the intermediate lever 25 is disposed on the front side of the vehicle and the operation pedal 20 is disposed on the rear side of the vehicle as in the first embodiment, As the fixing structure, the fixing structure according to the second embodiment (see FIGS. 8, 9, and 11) or the fixing structure according to the third embodiment (see FIGS. 13 and 15) may be used.

  In the link type vehicle pedal device in which the operation pedal 20 is disposed on the front side of the vehicle and the intermediate lever 25 is disposed on the rear side of the vehicle as in the second embodiment, As the fixing structure, the fixing structure according to the first embodiment (see FIGS. 2, 3, 5, and 6) or the fixing structure according to the third embodiment (see FIGS. 13 and 15) may be used.

  And in the pedal device for vehicles like a 3rd embodiment, as a fixation structure of pedal bracket 10 to detachment bracket 50, a fixation structure (refer to Drawing 2, Drawing 3, Drawing 5, and Drawing 6) concerning a 1st embodiment or The fixing structure according to the second embodiment (see FIGS. 8, 9, and 11) may be used.

  Further, in the above-described embodiment, the engaging portion is formed in a substantially spherical shape at the tip of the extending portion. However, the embodiment is not limited to this aspect. The engaging portion at the tip of the extending portion may have a three-dimensional shape, but it is desirable that the engaging portion has a shape close to a regular polyhedron (for example, a regular octahedron).

  In addition, the present invention is not limited to the aspect shown in the above-described embodiment as long as each operation in the reverse preventing device for the vehicular pedal device according to the present invention can be realized. If each operation | movement in the reverse prevention apparatus of the said vehicle pedal apparatus is realizable, the shape and arrangement | positioning of each member which comprise the brake pedal apparatus 1 can be changed suitably.

DESCRIPTION OF SYMBOLS 1 Brake pedal apparatus 10 Pedal bracket 11 Side plate 12 1st support shaft 13 2nd support shaft 20 Operation pedal 21 Step part 25 Intermediate lever 30 Connection link 40 Retraction prevention bracket 41 Side plate 45 Extension part 46 Movement allowance part 50 Detachment bracket 51 Fixation Piece 60 Collision bracket 61 Guide surface I Instrument panel reinforcement P Dash panel

Claims (6)

A pedal bracket fixed to the vehicle front dash panel and having a pair of side plates;
An operation pedal having a step part used for a stepping operation toward the front side of the vehicle and supported rotatably by a first support shaft;
The pedal bracket is rotatably supported around a second support shaft disposed in parallel to the first support shaft, and is rotated in an output direction about the second support shaft. An intermediate lever for displacing a predetermined output member toward the vehicle front side;
The vehicle pedal device includes: a connecting link that connects the operation pedal and the intermediate lever and rotates the intermediate lever in the output direction in conjunction with a stepping operation on the operation pedal. An anti-reverse device that suppresses displacement of the stepped portion of the operation pedal toward the vehicle rear side when displaced to the rear side,
A retraction prevention bracket that is arranged to be rotatable about the second support shaft with respect to the pedal bracket and holds the first support shaft by a pair of side plates at a position different from the second support shaft;
A fixing bracket formed to extend toward the vehicle rear side, and a release bracket fixed to a vehicle body member located on the vehicle rear side;
The retraction prevention bracket is
On the vehicle rear side of the reverse prevention bracket, an extension portion that extends toward the vehicle front side and is fixed on the fixed piece of the release bracket;
A reverse preventing device for a vehicular pedal device, wherein the extension portion includes a movement allowing portion for moving downward from above the fixed piece. A collision bracket fixed to the vehicle body member on the vehicle rear side of the separation bracket;
The collision bracket is inclined so that the rear side of the vehicle is located on the rear side of the extension portion of the anti-retraction bracket so that the rear side of the collision bracket is positioned downward. 2. A reverse preventing device for a vehicular pedal device according to claim 1, further comprising a guide surface for guiding a rear end of the bracket. A pedal bracket fixed to the vehicle front dash panel and having a pair of side plates;
A pedal device for a vehicle having a step part used for a stepping operation toward the front side of the vehicle and having an operation pedal rotatably supported by a first support shaft of the pedal bracket, wherein the dash panel is on the rear side of the vehicle A reverse prevention device that suppresses displacement of the stepped portion of the operation pedal toward the vehicle rear side when
A detachable bracket having a fixing piece that is fixed to a vehicle body member that is located above the first support shaft and on the vehicle rear side, and that extends toward the vehicle rear side;
A collision bracket fixed to the vehicle body member on the vehicle rear side of the separation bracket; and
The pedal bracket is
On the vehicle rear side of the pedal bracket, an extension portion that extends toward the vehicle front side and is fixed on the fixed piece of the release bracket;
The extension part has a movement allowance part for moving downward from above the fixed piece,
The collision bracket is
The rear end of the pedal bracket is tilted so as to be positioned lower on the vehicle rear side than the extension portion of the pedal bracket, and the rear end of the pedal bracket is guided when the dash panel is displaced to the rear side of the vehicle. A vehicular pedal device reverse prevention device having a guide surface. The movement permitting portion is formed on both sides in the vehicle width direction with respect to the extending portion, with a width wider than the width of the fixed piece between the pair of side plates and the side edge of the extending portion. The reverse preventing device for a pedal device for a vehicle according to any one of claims 1 to 3. The movement allowing portion is formed by providing the extending portion so that the upper edges of the pair of side plates are located below the lower surface of the fixed piece that supports and fixes the extending portion. The reverse prevention device for a vehicle pedal device according to any one of claims 1 to 3. The extension part has a three-dimensional engagement part at the tip of the extension part,
The release bracket has an upper fixing piece extending above the fixing piece with a predetermined gap therebetween,
The movement allowing portion is formed such that the extending portion is movable in the vehicle rear direction and the vehicle width direction by a gap between the upper surface of the fixed piece and the lower surface of the upper fixed piece.
The upper surface of the fixed piece and the lower surface of the upper fixed piece are formed in a concave shape corresponding to the three-dimensional shape of the engaging portion in the extending portion, and an engaging concave portion that engages with the engaging portion is formed. 4. A reverse preventing device for a vehicular pedal device according to claim 1, wherein the reverse preventing device is used.

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