JP2017016551A - Retreat prevention device of vehicle pedal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle pedal device retreat prevention device capable of suppressing deformation of a vehicle body side member to a rear side of a vehicle, and suppressing retreat of an operation pedal, when a dash panel is displaced to a rear side of the vehicle.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 link 40; and a retreat prevention member 50. A second support shaft 12 for connecting the retreat prevention link 40 and the retreat prevention member 50 is disposed below a reference line L, so that, when front collision of a vehicle occurs, the brake pedal device 1 moves the second support shaft 12 downward. Therefore, the intermediate lever 25 also moves downward with the second support shaft 12, therefore the operation pedal 20 rotates around a first support shaft 11 to a front side of the vehicle, through the connection link 30. A load from a front side of the vehicle is acted to a direction of moving the second support shaft 12 downward, so that deformation of an instrument panel reinforcement I can be suppressed.SELECTED DRAWING: Figure 1

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 side of the vehicle due to a frontal collision of the vehicle.

  Conventionally, for example, the inventions described in Patent Literature 1 and Patent Literature 2 are known as a back-prevention device for a vehicle pedal device that suppresses the operation pedal from moving to the occupant side behind the vehicle body at the time of a frontal collision of the vehicle. The brake pedal retraction preventing device described in Patent Literature 1 and Patent Literature 2 relates to a vehicle pedal device having a pedal bracket, a brake pedal, an intermediate lever, and a connecting member, and the dash panel is displaced backward toward the driver's seat. In this case, the step portion of the operation pedal is configured to be prevented from moving backward to the driver's seat side.

  More specifically, in the brake pedal device described in Patent Document 1, when the dash panel is moved backward, the steering member as a vehicle body side member on the rear side of the vehicle and the impact impact bracket are rotated corresponding to the intermediate lever. The rotating lever is rotated by contacting the lever. And the brake pedal apparatus of patent document 1 suppresses retraction of a brake pedal by rotating a pedal arm to the vehicle front side with rotation of the rotation lever by contact | abutting with a vehicle body side member. Yes.

  Further, in the vehicle pedal support structure described in Patent Document 2, when the dash panel is moved backward, the instrument panel reinforcement as the vehicle body side member on the rear side of the vehicle and the sub pedal bracket are connected to the first link corresponding to the intermediate lever. And the first link is rotated. And also in the pedal support structure for vehicles of patent documents 2, with the rotation of the 1st link based on contact with the body side member, the pedal arm is rotated to the vehicle front side, and the brake pedal is retracted. Is suppressed.

JP 2007-320404 A Japanese Patent Laid-Open No. 2008-204096

  Here, in recent years, securing a large cabin space in a vehicle has been regarded as important, and the distance between a front portion (for example, an engine room) of a dash panel and a vehicle body side member (for example, instrument panel reinforcement) tends to be narrowed. It is in.

  As in the inventions described in Patent Documents 1 and 2, in order to prevent the operation pedal from retreating, when the contact between the intermediate lever and the vehicle body side member is a condition, the front portion of the dash panel (for example, the engine room) If the distance from the vehicle body side member (for example, instrument panel reinforcement) is narrowed, there may be a case where the function of preventing the operation pedal from retreating cannot be realized in an appropriate state.

  In addition, since the intermediate lever comes into contact with the vehicle body side member, there is a possibility that a large load due to a frontal collision or the like acts on the vehicle body side member via the intermediate lever or the like, causing the vehicle body side member to be deformed to the vehicle rear side. There is. Generally, since the vehicle body side member is provided with a vehicle steering or the like, if the vehicle body side member is deformed on the rear side, an occupant (for example, a driver's upper body) is injured. There was a fear.

  The present invention relates to a reverse prevention device for a vehicle pedal device that suppresses the operation pedal from moving backward when a dash panel is displaced to the vehicle rear side due to a frontal collision of the vehicle, and relates to a vehicle body side member toward the vehicle rear side. An apparatus for preventing the backward movement of a pedal device for a vehicle that can prevent the deformation of the operational pedal and suppress the backward movement of an operation pedal is provided.

  According to an aspect of the present invention, there is provided a vehicular pedal apparatus for preventing a backward movement of a pedal bracket, which is rotatably disposed by a pedal bracket fixed to a dash panel on the front side of the vehicle and a first support shaft of the pedal bracket. An operation pedal having a step portion used for stepping on the vehicle and a second support shaft provided in parallel with the first support shaft on the vehicle rear side of the first support shaft so as to be rotatable. And an intermediate lever for displacing a predetermined output member toward the front of the vehicle by turning in the output direction about the second support shaft, and the stepping operation on the operation pedal by connecting the operation pedal and the intermediate lever. And a connecting link for rotating the intermediate lever in the output direction, when the dash panel is displaced toward the rear side of the vehicle, An anti-retraction device that suppresses displacement of the stepped portion of the operation pedal toward the rear side of the vehicle, and one end portion is rotatably attached to the pedal bracket and is rotatable around the second support shaft One end portion is attached to the first reverse preventing member supported by the vehicle and the vehicle body side member located on the vehicle rear side, and the second reverse preventing member is rotatably connected to the first reverse preventing member. A connecting position in which the first retraction preventing member and the second retraction preventing member are rotatably connected to each other. The first retraction preventing member is attached to the pedal bracket. It is located below the reference line connecting the mounting position and the second mounting position where the second retraction preventing member is mounted to the vehicle body side member.

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. Here, the reverse preventing device for the vehicle pedal device further includes a first reverse preventing member and a second reverse preventing member, and the first reverse preventing member and the second reverse preventing member are connected to each other. The position is located below the reference line connecting the first attachment position and the second attachment position. As a result, when the dash panel is displaced toward the rear side of the vehicle and the distance between the dash panel and the vehicle body side member becomes narrower, the reverse preventing device for the vehicle pedal device has the first reverse preventing member and the second reverse moving device. The connection position of the prevention member can be moved downward. Here, since the first retraction preventing member is supported so as to be rotatable about the second support shaft, the second support shaft also moves downward as the connecting position moves downward. The pedal bracket moves downward from the first support shaft. As a result, since the intermediate lever also moves downward together with the second support shaft, the operation pedal rotates to the front side of the vehicle about the first support shaft via the connecting member.
In other words, the reverse preventing device for the vehicle pedal device includes a first reverse preventing member and a second reverse preventing member, and the connection position of the first reverse preventing member and the second reverse preventing member is set to the first position. By positioning the dash panel below the reference line connecting the mounting position and the second mounting position, the operation pedal and the intermediate lever are forcibly turned when the dash panel is displaced to the rear side of the vehicle due to a frontal collision of the vehicle. Therefore, it is possible to suppress the stepped portion of the operation pedal from being displaced toward the rear side of the vehicle. Further, according to the reverse prevention device of the vehicle pedal device, the load from the vehicle front side that displaces the dash panel to the vehicle rear side is applied, and the connecting position of the first reverse prevention member and the second reverse prevention member is lowered. Since it can be made to act in the direction to move, a deformation | transformation of a vehicle body side member can be suppressed and it can contribute to a passenger | crew's reliable protection.

  According to another aspect of the present invention, there is provided a vehicular pedal device reverse preventing apparatus according to claim 1, wherein the second reverse preventive member is located on the vehicle rear side. One end portion is attached to be detachable from the vehicle body side member when it is quantitatively displaced.

  In the reverse preventing device for the pedal device for a vehicle, the second reverse preventing member is attached so that one end thereof is detachable from the vehicle body side member when the second reverse preventing member is displaced to the vehicle rear side. Before the load from the vehicle front side to be displaced rearward causes the deformation of the vehicle body side member, the load can be excluded, thereby contributing to reliable protection of the occupant.

  The vehicle pedal device reverse preventing device according to one aspect of the present invention is the vehicle pedal device reverse preventing device according to claim 1 or 2, wherein the second mounting position is the first mounting position. It is characterized by being located above.

  In the vehicular pedal device reverse prevention device, since the second mounting position is located above the first mounting position, the dash panel is displaced rearward due to a frontal collision of the vehicle or the like. In addition, the connecting position of the first retraction preventing member and the second retraction preventing member can be reliably moved downward. That is, according to the reverse prevention device for the pedal device for a vehicle, it is possible to reliably suppress the stepped portion of the operation pedal from being displaced toward the rear side of the vehicle, and at the same time, it is possible to suppress deformation of the vehicle body side member. , Can contribute to the reliable protection of passengers.

  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 vehicular pedal device retreat prevention device is the first attachment position. A first distance connecting the connection position and the connection position is longer than a second distance connecting the second attachment position and the connection position.

  In the reverse movement prevention device for the pedal device for a vehicle, the first distance connecting the first attachment position and the connection position is longer than the second distance connecting the second attachment position and the connection position. Even if the second mounting position is provided at a position substantially equal to the first mounting position in the vertical direction, when the dash panel is displaced to the rear side of the vehicle due to a vehicle front collision or the like, The connection position can be reliably moved downward. That is, according to the reverse prevention device for the pedal device for a vehicle, it is possible to reliably suppress the stepped portion of the operation pedal from being displaced toward the rear side of the vehicle, and at the same time, it is possible to suppress deformation of the vehicle body side member. , Can contribute to the reliable protection of passengers.

  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 4, wherein the vehicular pedal device retreat prevention device is the first support shaft. Is characterized in that the operation pedal is rotatably supported with respect to the pedal bracket and the first retraction preventing member is rotatably supported with respect to the pedal bracket.

  In the reverse preventing device for the vehicle pedal device, the first support shaft rotatably supports the operation pedal with respect to the pedal bracket and rotates the first reverse preventing member with respect to the pedal bracket. Support movably. That is, according to the reverse preventing device for the vehicle pedal device, in addition to the function of pivotally supporting the operation pedal with respect to the pedal bracket on the first support shaft, the first reverse with respect to the pedal bracket. It is possible to provide a function of supporting the prevention member so as to be rotatable, thereby reducing the number of parts and manufacturing costs.

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 5, wherein the vehicular pedal device retreat prevention device is the second support shaft. The intermediate lever and the first retraction preventing member are rotatably supported, and the first retraction preventing member and the second retraction preventing member are rotatably connected. .

  In the reverse movement prevention apparatus for the vehicle pedal device, the second support shaft supports the intermediate lever and the first reverse movement prevention member so as to be rotatable relative to each other, and the first reverse movement prevention member and the second rotation prevention member. A retreat prevention member is pivotally connected. That is, according to the backward movement prevention device for the vehicle pedal device, in addition to the function of supporting the intermediate lever and the first backward movement prevention member on the second support shaft in a mutually rotatable manner, the first backward movement It is possible to provide a function of connecting the prevention member and the second retraction prevention member so as to be rotatable, thereby reducing the number of components and reducing the manufacturing cost.

  The present invention includes a pedal bracket, an operation pedal, an intermediate lever, and a connecting link, and further includes a first reverse prevention member and a second reverse prevention member. Then, the connecting position of the first retraction prevention member and the second retraction prevention member is located below the reference line connecting the first attachment position and the second attachment position, so that the dash panel is moved to the rear side of the vehicle. When displaced, the connecting position of the first retraction preventing member and the second retraction preventing member is moved downward. Since the operation pedal and the intermediate lever are forcibly rotated along with the downward movement of the connection position, it is possible to suppress the stepped portion of the operation pedal from being displaced toward the rear side of the vehicle. Further, by moving the connection position downward, the direction of the load applied from the front side of the vehicle can be changed, so that deformation of the vehicle body side member can be suppressed. It can contribute to the reliable protection of passengers.

It is a side view showing a schematic structure of a brake pedal device concerning a 1st embodiment. It is explanatory drawing of the detachment structure of the receding prevention member with respect to a slide bracket. It is explanatory drawing which shows the initial stage in the front collision of the brake pedal apparatus which concerns on 1st Embodiment. It is explanatory drawing which shows the backlash prevention operation state of the brake pedal apparatus 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 explanatory drawing which shows the initial stage in the front collision of the brake pedal apparatus which concerns on 2nd Embodiment. It is explanatory drawing which shows the backlash prevention operation state of the brake pedal apparatus 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 explanatory drawing which shows the initial stage in the front collision of the brake pedal apparatus which concerns on 3rd Embodiment. It is explanatory drawing which shows the backlash prevention operation state of the brake pedal apparatus which concerns on 3rd Embodiment. It is explanatory drawing which shows the other modification of this invention.

(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. FIG. 1 is a side view showing a schematic configuration of the brake pedal device 1, and the pedal bracket 10 is shown by an imaginary line (broken line) so that the inner structure thereof can be understood.

  The brake pedal device 1 according to the first embodiment is fixed to a dash panel P that divides the engine room and the vehicle interior, and includes a pedal bracket 10, an operation pedal 20, an intermediate lever 25, and a connection link 30. And a reverse prevention link 40 and a reverse prevention member 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 depression operation of the operation pedal 20. It is configured.

  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 side member in the present invention. The instrument panel reinforcement I is a pipe-like member having high strength and high rigidity, and is arranged with the vehicle width direction as a longitudinal direction. Generally, the instrument panel reinforcement I is a vehicle when a heavy load is input from the front of the vehicle, such as at the time of a collision. The possibility of displacement to the rear side and the amount of deformation are less than those of the dash panel P. In addition, a steering shaft (not shown) that constitutes a steering that is a vehicle steering device is fixed to the instrument panel reinforcement I so as to extend from the front side of the dash panel P toward the vehicle interior. As shown in FIG. 1, a slide bracket 60 described later is fixed to the instrument panel reinforcement I, and constitutes a part of the vehicle body side member of the present invention. Details of the slide bracket 60 will be described later with reference to the drawings.

  The pedal bracket 10 is fixed to the passenger compartment side of the dash panel P using bolts or the like, and has a pair of side plates facing each other with an interval in the vehicle width direction. The pedal bracket 10 according to the first embodiment has a first support shaft 11.

  The first support shaft 11 is disposed on the pedal bracket 10 so as to extend between the pair of side plates in the pedal bracket 10 so as to be substantially horizontal and substantially parallel to the vehicle width direction. In the first embodiment, the first support shaft 11 rotatably supports the upper portion of the operation pedal 20 with respect to the pedal bracket 10, and one end portion of a retraction preventing link 40 described later on the pedal bracket 10. It fulfills the function of being attached to be rotatable. Therefore, in the first embodiment, the position of the first support shaft 11 functions as the first mounting position in the present invention.

  The second support shaft 12 is disposed on the rear side of the vehicle with respect to the first support shaft 11 so as to extend in parallel with the first support shaft 11. The second support shaft 12 rotatably supports the lower portion of the intermediate lever 25 to which the operating rod R is connected, and rotatably supports the other end portion of a reverse preventing link 40 described later. Further, the second support shaft 12 according to the first embodiment rotatably supports an end portion of a backward movement preventing member 50, which will be described later, and the backward movement prevention link 40 and the backward movement prevention member 50 can be rotated relative to each other. It is linked to. Therefore, in the first embodiment, the position of the second support shaft 12 functions as a connection position in the present invention.

  The operation pedal 20 is rotatably supported by the first support shaft 11 of the pedal bracket 10 and has a step portion 21 at the lower end. Accordingly, when a stepping operation is performed using the step portion 21, the operation pedal 20 rotates about the first support shaft 11, and the step portion 21 moves toward the front side of the vehicle.

  The intermediate lever 25 is rotatably supported at its lower end by a second support shaft 12 disposed on the vehicle rear side with respect to the first support shaft 11 and extends upward. An operating rod R is connected to the upper end of the intermediate lever 25 via a clevis. Therefore, when the intermediate lever 25 rotates around the second support shaft 12, 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 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. Since one end side of the connection link 30 is connected to the upper rear side portion of the operation pedal 20 via the connection pin 31, the connection link 30 is connected to the operation pedal 20 around the connection pin 31. Can rotate. Further, since the other end side of the connection link 30 is connected to the lower front 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 11 can be transmitted to the intermediate lever 25 via the connection link 30. 2 It can be rotated around the support shaft 12.

  As shown in FIG. 1, the reverse prevention link 40 is a steel plate member disposed along each side plate of the pedal bracket 10, and an end portion on the vehicle front side is supported by the first support shaft 11. The end of the vehicle rear side is supported by the second support shaft 12. Here, while the first support shaft 11 is disposed on the pedal bracket 10, the second support shaft 12 is disposed without the pedal bracket 10. 2 As the support shaft 12 moves, it can rotate around the first support shaft 11. The retraction preventing link 40 is an example of a first retraction preventing member in the present invention, and fulfills a function of keeping the relative positional relationship (distance) between the first support shaft 11 and the second support shaft 12 constant. Yes.

  And the retreat prevention member 50 comprises the back part of the brake pedal apparatus 1, and is formed in cross-sectional substantially U shape. As shown in FIG. 1, the retraction preventing member 50 according to the first embodiment is attached at one end to a slide bracket 60 that constitutes a vehicle body side member, and is prevented from retreating via the second support shaft 12. It is connected to the link 40 for rotation. The reverse preventing member 50 is an example of a second reverse preventing member according to the present invention, and is detached from the slide bracket 60 constituting the vehicle body side member when a load is applied from the front due to a forward collision of the vehicle. It is attached as follows.

  As described above, the slide bracket 60 is fixed to the instrument panel reinforcement I constituting the vehicle body side member, and has a predetermined high strength. The slide bracket 60 has a substantially U-shaped cross section, and has a slit 61 on a mounting surface to which the retraction preventing member 50 is detachably attached. The mounting surface of the slide bracket 60 is inclined downward toward the rear side of the vehicle.

  Here, the separation structure of the receding prevention member 50 with respect to the slide bracket 60 will be described with reference to FIG. As shown in FIG. 2, a slit 61 is formed on the mounting surface of the slide bracket 60. The slit 61 is formed to extend along the front-rear direction of the vehicle with a predetermined width, and has a wide portion 62 at the rear end. On the other hand, a fixing bolt 51 and a nut 52 are disposed on one surface of the receding prevention member 50 facing the mounting surface of the slide bracket 60.

  Here, the width dimension of the slit 61 is slightly larger than the shaft diameter of the fixing bolt 51 and smaller than the outer diameter of the head of the fixing bolt 51. Therefore, the retraction preventing member 50 can be attached to the slide bracket 60 constituting the vehicle body side member by inserting the fixing bolt 51 through the slit 61 and screwing it with the nut 52.

  And the opening dimension of the wide part 62 in the slit 61 is formed larger than the outer diameter of the head in the fixing bolt 51. Accordingly, when the receding prevention member 50 moves relative to the slide bracket 60 and the fixing bolt 51 reaches the wide portion 62 in the slit 61, the fixing bolt 51 and the nut 52 can fall off from the wide portion 62 of the slit 61. .

  That is, when the fixing bolt 51 and the nut 52 are located in a portion of the slit 61 excluding the wide portion 62, the retraction preventing member 50 is maintained attached to the slide bracket 60 constituting the vehicle body side member. To do. On the other hand, when the locking member 51 and the nut 52 are positioned at the relatively wide portion 62 due to the displacement of the backward movement prevention member 50 toward the vehicle rear side, the backward movement prevention member 50 is detached from the slide bracket 60. Therefore, in the first embodiment, the positions of the fixing bolt 51 and the nut 52 inserted through the slit 61 function as the second mounting position in the present invention.

  With the configuration as described above, in the brake pedal device 1 according to the first embodiment, as shown in FIG. 1, the positions of the fixing bolt 51 and the nut 52 functioning as the second attachment position in the present invention are It is located above the first support shaft 11 that functions as the first attachment position in the present invention, and the reference line L connecting the first attachment position and the second attachment position becomes higher as it goes to the vehicle rear side. Inclined. And in the brake pedal apparatus 1 which concerns on 1st Embodiment, the 2nd support shaft 12 which functions as a connection position in this invention is located below the reference line L which ties a 1st attachment position and a 2nd attachment position. become.

(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 around the first support shaft 11. At this time, since the upper part of the operation pedal 20 rotates about the first support shaft 11 toward the lower side of the vehicle, the rotation of the operation pedal 20 is transmitted to the intermediate lever 25 via the connection link 30. Is done.

  As described above, since the connection link 30 is connected to the lower front side portion of the intermediate lever 25 via the connection pin 32, the intermediate lever 25 is moved to the second position as the operation pedal 20 rotates. By rotating around the support shaft 12, the upper part of the intermediate lever 25 can be moved toward the front side of the vehicle. 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. It is possible to press in the direction (front side of the vehicle) and to generate a braking force for the vehicle.

(Brake pedal operation during forward collision)
Next, the operation of the brake pedal device 1 at the time of a frontal collision of the vehicle 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 frontal collision or the like, the dash panel P is displaced to the rear side of the vehicle due to the input large load. On the other hand, the instrument panel reinforcement I has a small amount of displacement toward the vehicle rear side even when a large load is input from the vehicle front side. Accordingly, the pedal bracket 10 moves relative to the rear side of the vehicle together with the dash panel P due to the displacement difference between the dash panel P and the instrument panel reinforcement I due to a large load input from the front side of the vehicle.

  As shown in FIG. 1, in the brake pedal device 1 according to the first embodiment, the second support shaft 12 that functions as a connection position is positioned below the reference line L, and the reverse prevention link 40 is Since the first support shaft 11 and the second support shaft 12 are formed so as to maintain the relative positional relationship (distance), the load due to the rearward displacement of the dash panel P causes the retraction preventing link 40 to be connected to the first support shaft. The second support shaft 12 acting as a connecting position is displaced downward, so that the second support shaft 12 is pivoted downward about 11.

  Further, since the position of the fixing bolt 51 or the like that functions as the second mounting position is located above the position of the first support shaft 11 that functions as the first mounting position, according to the brake pedal device 1, The 2nd support shaft 12 which is a connection position can be displaced below more reliably.

  When the second support shaft 12 is displaced downward along with the rearward displacement of the dash panel P, the intermediate lever 25 is also moved downward, so that the operation pedal 20 is pulled via the connection link 30 and is moved around the first support shaft 11. Forcibly rotate. As shown in FIG. 3, in the brake pedal device 1, the operation pedal 20 and the intermediate lever 25 are forcibly displaced by displacing the second support shaft 12 connecting the reverse prevention link 40 and the reverse prevention member 50 downward. It is possible to prevent the stepped portion 21 of the operation pedal 20 from moving backward toward the driver's seat.

  Then, when the rearward displacement of the dash panel P further proceeds and the second support shaft 12 is displaced downward, the dash panel P is prevented from moving backward when a predetermined load (for example, the fastening load of the fixing bolt 51 and the nut 52) is exceeded. The fixing bolt 51 and the nut 52 of the member 50 move toward the wide portion 62 of the slit 61 (see FIG. 4). When the fixing bolt 51 and the nut 52 reach the wide portion 62 of the slit 61, the retraction preventing member 50 is detached from the slide bracket 60. As a result, the load due to the rearward displacement of the dash panel P is removed before the instrument panel reinforcement I that is the vehicle body side member is largely deformed, so that the deformation of the instrument panel reinforcement I can be suppressed. That is, since the displacement of the steering into the vehicle interior accompanying the deformation of the instrument panel reinforcement I can be suppressed, the brake pedal device 1 can reliably protect the upper body of the passenger in the vehicle interior.

  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 further includes a reverse prevention link 40 and a reverse prevention member 50, and the second support shaft 12 connecting the reverse prevention link 40 and the reverse prevention member 50 is As shown in FIG. 1, it is located below the reference line L. Thereby, when the dash panel P is displaced to the rear side of the vehicle and the distance between the dash panel P and the instrument panel reinforcement I and the like is narrowed, the brake pedal device 1 of the brake pedal device 1 The 2nd support shaft 12 which is a connection position can be moved below (refer FIG. 3, FIG. 4). As a result, in the brake pedal device 1, since the intermediate lever 25 also moves downward together with the second support shaft 12, the operation pedal 20 is located on the vehicle front side around the first support shaft 11 via the connection link 30. It will turn to.

  That is, the brake pedal device 1 positions the second support shaft 12, which is a connection position of the reverse movement prevention link 40 and the reverse movement prevention member 50, below the reference line L that connects the first attachment position and the second attachment position. Accordingly, when the dash panel P is displaced to the rear side of the vehicle due to a frontal collision of the vehicle or the like, the operation pedal 20 and the intermediate lever 25 can be forcibly rotated. Displacement 21 to the vehicle rear side can be suppressed (see FIGS. 3 and 4). Further, according to the brake pedal device 1, the load from the vehicle front side that displaces the dash panel P to the vehicle rear side is applied to the second support shaft 12, which is the connection position between the reverse prevention link 40 and the reverse prevention member 50. Since it can be made to act in the direction made to move below, deformation of instrument panel reinforcement I etc. can be controlled. Thereby, the said brake pedal apparatus 1 can suppress the displacement to the vehicle interior of the steering arrange | positioned in the instrument panel reinforcement I, and can protect the upper body of the passenger | crew in a vehicle interior reliably.

  In the brake pedal device 1, as shown in FIG. 2 and the like, when the reverse prevention member 50 is displaced by a predetermined amount toward the rear side of the vehicle, a slide fixed to the instrument panel reinforcement I that is a vehicle body side member. The bracket 60 is detachably attached. Thereby, according to the said brake pedal apparatus 1, before the load from the vehicle front side which displaces the dash panel P to the vehicle rear side causes the deformation | transformation of the instrument panel reinforcement I which is a vehicle body side member, the load is excluded. Therefore, contact with the steering wheel and the like can be prevented, thereby contributing to reliable protection of the occupant.

  In the brake pedal device 1 according to the first embodiment, the position of the fixing bolt 51 or the like that is the second mounting position is located above the first support shaft 11 that functions as the first mounting position. Therefore, when the dash panel P is displaced to the rear side of the vehicle due to a frontal collision of the vehicle or the like, the second support shaft 12, which is a connection position between the reverse prevention link 40 and the reverse prevention member 50, is reliably moved downward. be able to. That is, according to the brake pedal device 1, it is possible to reliably suppress the stepped portion 21 of the operation pedal 20 from being displaced toward the rear side of the vehicle, and at the same time, it is possible to suppress the deformation of the instrument panel reinforcement I. This can contribute to reliable protection of the upper body of the passenger.

  In the brake pedal device 1 according to the first embodiment, the first support shaft 11 supports the operation pedal 20 so as to be rotatable with respect to the pedal bracket 10 and prevents the pedal bracket 10 from moving backward. The link 40 is rotatably supported. That is, according to the brake pedal device 1, in addition to the function of supporting the operation pedal 20 on the first support shaft 11 so as to be rotatable with respect to the pedal bracket 10, the retraction preventing link 40 is provided with respect to the pedal bracket 10. It is possible to provide a function of supporting the device in a rotatable manner, thereby reducing the number of parts and reducing the manufacturing cost.

  Further, in the brake pedal device 1, the second support shaft 12 supports the intermediate lever 25 and the reverse movement prevention link 40 so as to be rotatable relative to each other, and rotates the reverse movement prevention link 40 and the reverse movement prevention member 50. It is linked movably. That is, according to the brake pedal device 1, in addition to the function of rotatably supporting the intermediate lever 25 and the reverse movement prevention link 40 on the second support shaft 12, the reverse movement prevention link 40 and the backward movement prevention link are provided. It is possible to provide a function of connecting the member 50 so as to be rotatable, thereby reducing the number of parts and reducing the manufacturing cost.

(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. The brake pedal device 1 according to the second embodiment has the same configuration as the brake pedal device 1 according to the first embodiment described above, except for the configurations of the pedal bracket 10 and the reverse prevention link 40. 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)
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, and is a pair opposed to each other at an interval in the vehicle width direction. Side plates. The pedal bracket 10 has an attachment shaft 13 in addition to the first support shaft 11 similar to that of the first embodiment.

  The first support shaft 11 according to the second embodiment extends between the pair of side plates in the pedal bracket 10 and is substantially horizontal and substantially parallel to the vehicle width direction, so that the upper part of the operation pedal 20 can be rotated. I support it. In this regard, unlike the first embodiment, the first support shaft 11 according to the second embodiment is not used to support the end portion of the retraction preventing link 40.

  Also in the second embodiment, the second support shaft 12 is arranged to extend in parallel with the first support shaft 11 on the vehicle rear side with respect to the operation pedal 20, and the operating rod R is connected thereto. While supporting the lower part of the intermediate lever 25 so that rotation is possible, the other end part of the link 40 for backlash prevention is supported so that rotation is possible. Furthermore, the 2nd support shaft 12 which concerns on 2nd Embodiment has connected the link 40 for reverse movement and the reverse movement prevention member 50 so that rotation is mutually possible like the 1st Embodiment, and the connection position in this invention Function as.

  A mounting shaft 13 is formed in the pedal bracket 10 according to the second embodiment. The mounting shaft 13 is above the first support shaft 11 and at a position below the mounting position of the receding prevention member 50 with respect to the slide bracket 60 (that is, the position of the fixing bolt 51 etc.). 1 It is arrange | positioned so that it may extend in parallel with the support shaft 11. As shown in FIG. As shown in FIG. 5 to FIG. 7, the attachment shaft 13 has a function of attaching one end portion of the retraction preventing link 40 to the pedal bracket 10 so as to be rotatable, and is a first attachment position in the present invention. It corresponds to.

  And the reverse prevention link 40 which concerns on 2nd Embodiment is a member made from the steel plate arrange | positioned along each side plate of the pedal bracket 10 similarly to 1st Embodiment. An end portion on the vehicle front side of the reverse preventing link 40 is rotatably attached by an attachment shaft 13 of the pedal bracket 10, and an end portion on the vehicle rear side is supported by the second support shaft 12. Here, the mounting shaft 13 is disposed on the pedal bracket 10, while the second support shaft 12 is disposed without the pedal bracket 10. As the shaft 12 moves, it can rotate around the mounting shaft 13.

  With the configuration as described above, in the brake pedal device 1 according to the second embodiment, as shown in FIG. 5, the positions of the fixing bolt 51 and the nut 52 functioning as the second mounting position in the present invention are It is located above the attachment shaft 13 that functions as the first attachment position in the invention, and the reference line L connecting the first attachment position and the second attachment position is inclined so as to become higher toward the vehicle rear side. ing. And in the brake pedal apparatus 1 which concerns on 2nd Embodiment, the 2nd support shaft 12 which functions as a connection position in this invention is located below the reference line L which ties a 1st attachment position and a 2nd attachment position. become.

(Operation of the brake pedal device according to the second embodiment at the time of forward collision)
Next, the operation of the brake pedal device 1 according to the second embodiment at the time of a vehicle front collision will be described in detail with reference to FIGS. Also in the second embodiment, when a large load is input from the front side of the vehicle due to a frontal collision or the like of the vehicle, the dash panel P is displaced to the rear side of the vehicle due to the input large load. The brake pedal device 1 moves relative to the rear side of the vehicle together with the dash panel P due to a displacement difference between the dash panel P and the instrument panel reinforcement I due to a large load input from the front side of the vehicle.

  As shown in FIG. 5, in the brake pedal device 1 according to the second embodiment, the second support shaft 12 that functions as a connection position is located below the reference line L, and the reverse prevention link 40 is The mounting shaft 13 and the second support shaft 12 are formed to maintain a relative positional relationship (distance). As a result, the load due to the rearward displacement of the dash panel P acts to rotate the retraction preventing link 40 downward around the attachment shaft 13, thereby displacing the second support shaft 12, which is the connection position. be able to.

  Also in the second embodiment, the position of the fixing bolt 51 or the like that functions as the second mounting position is located above the position of the mounting shaft 13 that functions as the first mounting position. Therefore, according to the brake pedal device 1, the second support shaft 12 that is the connection position can be displaced more reliably downward.

  Also in the second embodiment, when the second support shaft 12 is displaced downward along with the rearward displacement of the dash panel P, the intermediate lever 25 is also moved downward. Due to the movement of the intermediate lever 25, the operation pedal 20 is pulled via the connection link 30 and is forcibly rotated around the first support shaft 11. That is, as shown in FIG. 6, in the brake pedal device 1 according to the second embodiment, the second support shaft 12 that connects the retraction prevention link 40 and the retraction prevention member 50 is displaced downward, thereby operating the operation pedal. 20 and the intermediate lever 25 can be forcibly rotated to prevent the stepped portion 21 of the operation pedal 20 from moving backward toward the driver's seat.

  Also in the second embodiment, when the rearward displacement of the dash panel P further proceeds and the second support shaft 12 is displaced downward, a predetermined load (for example, a fastening load of the fixing bolt 51 and the nut 52) is applied. At the stage of exceeding, the fixing bolt 51 and the like of the receding prevention member 50 move toward the wide portion 62 of the slit 61 (see FIG. 7). Then, when the fixing bolt 51 and the nut 52 reach the wide portion 62 of the slit 61, the receding prevention member 50 is detached from the slide bracket 60. Thereby, also in the brake pedal device 1 according to the second embodiment, the load due to the rearward displacement of the dash panel P is removed before the instrument panel reinforcement I that is the vehicle body side member is largely deformed. That is, since the displacement of the steering into the vehicle interior accompanying the deformation of the instrument panel reinforcement I can be suppressed, the brake pedal device 1 according to the second embodiment can also reliably protect the upper body of the passenger in the vehicle interior. it can.

  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 the reverse movement prevention link 40 and the reverse movement prevention member 50 as in the first embodiment, and the reverse movement prevention link 40 and the reverse movement prevention member 50 are provided. The second support shaft 12 to be connected is located below the reference line L (see FIG. 5). Thereby, when the dash panel P is displaced to the rear side of the vehicle and the distance between the dash panel P and the instrument panel reinforcement I and the like is narrowed, the brake pedal device 1 of the brake pedal device 1 The second support shaft 12 that is the coupling position can be moved downward, and the intermediate lever 25 can be moved downward together with the second support shaft 12 (see FIGS. 6 and 7). As a result, in the brake pedal device 1, the operation pedal 20 is pulled through the connection link 30 as the intermediate lever 25 moves downward, so that the operation pedal 20 is moved forward of the vehicle around the first support shaft 11. It is possible to prevent the pedal 21 of the operation pedal 20 from being displaced toward the rear side of the vehicle by being turned to the side.

  Also in the brake pedal device 1 according to the second embodiment, the load from the front side of the vehicle that displaces the dash panel P toward the rear side of the vehicle is the second connecting position of the reverse prevention link 40 and the reverse prevention member 50. Since it can be made to act in the direction which moves support shaft 12 below, deformation of instrument panel reinforcement I etc. can be controlled. Thereby, the said brake pedal apparatus 1 can suppress the displacement to the vehicle interior of the steering arrange | positioned in the instrument panel reinforcement I, and can protect the upper body of the passenger | crew in a vehicle interior reliably.

  And also in the brake pedal apparatus 1 which concerns on 2nd Embodiment, when the reverse movement prevention member 50 is displaced predetermined amount to the vehicle rear side, from the slide bracket 60 fixed to the instrument panel reinforcement I which is a vehicle body side member. Removably attached. Thereby, also in 2nd Embodiment, before the load from the vehicle front side which displaces the dash panel P to the vehicle rear side causes the deformation | transformation of the instrument panel reinforcement I which is a vehicle body side member, it is possible to exclude the load. Therefore, contact with the steering wheel and the like can be prevented, thereby contributing to reliable protection of the occupant.

  Also in the second embodiment, the position of the fixing bolt 51 or the like, which is the second mounting position, is located above the mounting shaft 13 that functions as the first mounting position. Thus, when the dash panel P is displaced to the rear side of the vehicle, the second support shaft 12 that is the connecting position of the reverse prevention link 40 and the reverse prevention member 50 can be reliably moved downward. That is, according to the brake pedal device 1, it is possible to reliably suppress the stepped portion 21 of the operation pedal 20 from being displaced toward the rear side of the vehicle, and at the same time, it is possible to suppress the deformation of the instrument panel reinforcement I. This can contribute to reliable protection of the upper body of the passenger.

  Also in the second embodiment, the second support shaft 12 supports the intermediate lever 25 and the retraction preventing link 40 so as to be rotatable relative to each other, and rotates the retraction preventing link 40 and the retraction preventing member 50. Since it is movably connected, the number of parts can be reduced and the manufacturing cost can be reduced.

(Third embodiment)
Next, 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. The brake pedal device 1 according to the third embodiment is the brake pedal device 1 according to the first embodiment and the second embodiment described above, except for the configurations of the pedal bracket 10, the reverse prevention link 40, and the reverse prevention member 50. It has the same composition as. Therefore, in the following description, the description about the same structure as 1st Embodiment and 2nd Embodiment is abbreviate | omitted, and a different structure is demonstrated in detail.

(Schematic configuration of the brake pedal device according to the third embodiment)
Also in the brake pedal device 1 according to the third embodiment, the pedal bracket 10 is fixed to the passenger compartment side of the dash panel P by using bolts or the like, and is opposed to each other with a gap in the vehicle width direction. Side plates. The pedal bracket 10 has a first support shaft 11 and an attachment shaft 13 as in the second embodiment.

  The first support shaft 11 according to the third embodiment extends between the pair of side plates in the pedal bracket 10 so as to be substantially horizontal and substantially parallel to the vehicle width direction so that the upper part of the operation pedal 20 can be rotated. I support it. As in the second embodiment, the first support shaft 11 according to the third embodiment is not used to support the end portion of the receding prevention link 40.

  The second support shaft 12 according to the third embodiment supports the lower portion of the intermediate lever 25 in a rotatable manner on the vehicle rear side with respect to the operation pedal 20, and rotates the other end portion of the reverse movement prevention link 40. Supports movable. Further, the second support shaft 12 according to the third embodiment, like the first embodiment and the second embodiment, connects the retraction preventing link 40 and the retraction preventing member 50 so as to be rotatable with respect to each other. It functions as a connection position in the present invention.

  An attachment shaft 13 is formed on the pedal bracket 10 according to the third embodiment. The attachment shaft 13 is located above the first support shaft 11 and is attached to the slide bracket 60 at the attachment position (that is, fixed). It is located at the same height as the position of the bolt 51 or the like. As shown in FIGS. 8 to 10, the attachment shaft 13 has a function of attaching one end portion of the retreat prevention link 40 to the pedal bracket 10 so as to be rotatable, and is a first attachment position in the present invention. It corresponds to.

  And the link 40 for backlash prevention which concerns on 3rd Embodiment is a member made from the steel plate arrange | positioned along each side plate of the pedal bracket 10 similarly to 2nd Embodiment. An end portion on the vehicle front side of the reverse prevention link 40 is rotatably attached by an attachment shaft 13 of the pedal bracket 10, and an end portion on the vehicle rear side is supported by the second support shaft 12. . Here, the mounting shaft 13 is disposed on the pedal bracket 10, while the second support shaft 12 is disposed without the pedal bracket 10. As the shaft 12 moves, it can rotate around the mounting shaft 13. In the third embodiment, the distance between the attachment shaft 13 and the second support shaft 12 positioned at both ends of the retreat prevention link 40 is referred to as a first distance DA.

  In the third embodiment, the receding prevention member 50 is attached to the slide bracket 60 that constitutes the vehicle body side member, and the second support shaft, as in the first and second embodiments. 12, the retraction preventing link 40 is rotatably connected to the link. The reverse prevention member 50 is attached so as to be detached from the slide bracket 60 constituting the vehicle body side member when a load is applied due to a forward collision of the vehicle or the like (see FIG. 2). In the third embodiment, the distance between the second support shaft 12 and the position of the fixing bolt 51 or the like located on one end side of the receding prevention member 50 (that is, the mounting position of the receding preventing member 50 with respect to the slide bracket 60). Is called the second distance DB, and the second distance DB is set shorter than the first distance DA described above.

  With the configuration as described above, in the brake pedal device 1 according to the third embodiment, as shown in FIG. 8, the positions of the fixing bolt 51 and the nut 52 functioning as the second attachment position in the present invention are It is located at the same height as the mounting shaft 13 functioning as the first mounting position in the invention, and the reference line L connecting the first mounting position and the second mounting position extends horizontally in the front-rear direction of the vehicle. And in the brake pedal apparatus 1 which concerns on 3rd Embodiment, the 2nd support shaft 12 which functions as a connection position in this invention is located below the reference line L which connects a 1st attachment position and a 2nd attachment position. become. Further, in the third embodiment, the first distance DA connecting the mounting shaft 13 that is the first mounting position and the second support shaft 12 that is the connecting position is the fixing bolt that is the second mounting position. It is longer than a second distance connecting a position such as 51 and the second support shaft 12 that is the connecting position (see FIG. 8).

(Operation of Brake Pedal Device According to Third Embodiment at Front 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. 9 and 10. Also in the third embodiment, when a large load is input from the front side of the vehicle due to a vehicle frontal collision or the like, the dash panel P is displaced to the rear side of the vehicle by the input large load, and the brake pedal device 1 is moved to the dash panel. Along with P, the vehicle is moved relatively to the rear side of the vehicle.

  As shown in FIG. 8, in the brake pedal device 1 according to the third embodiment, the second support shaft 12 that functions as a connection position is located below the reference line L, and the retraction preventing link 40 is The mounting shaft 13 and the second support shaft 12 are formed to maintain a relative positional relationship (distance). As a result, the load due to the rearward displacement of the dash panel P acts to rotate the retraction preventing link 40 downward around the attachment shaft 13, thereby displacing the second support shaft 12, which is the connection position. be able to.

  Here, in the third embodiment, the position of the fixing bolt 51 or the like that functions as the second mounting position is located at the same height as the position of the mounting shaft 13 that functions as the first mounting position. 13 and the second support shaft 12 are formed longer than the second distance DB connecting the fixing bolt 51 and the second support shaft 12. Therefore, by forming the brake pedal device 1 in this way, the brake pedal device 1 can more reliably connect the second support shaft 12 that is the connection position even when the heights of the first attachment position and the second attachment position are the same. Can be displaced downward.

  In the third embodiment, when the second support shaft 12 is displaced downward along with the rearward displacement of the dash panel P, the intermediate lever 25 is also moved downward. Due to the movement of the intermediate lever 25, the operation pedal 20 is pulled via the connection link 30 and is forcibly rotated around the first support shaft 11. That is, as shown in FIG. 9, in the brake pedal device 1 according to the third embodiment, the second support shaft 12 that connects the retraction prevention link 40 and the retraction prevention member 50 is displaced downward, thereby operating the operation pedal. 20 and the intermediate lever 25 can be forcibly rotated to prevent the stepped portion 21 of the operation pedal 20 from moving backward toward the driver's seat.

  Also in the third embodiment, when the rear displacement of the dash panel P further proceeds and the second support shaft 12 is displaced downward, a predetermined load (for example, a fastening load of the fixing bolt 51 and the nut 52) is applied. At the stage of exceeding, the fixing bolt 51 and the like of the receding prevention member 50 move toward the wide portion 62 of the slit 61 (see FIG. 10). Then, when the fixing bolt 51 and the nut 52 reach the wide portion 62 of the slit 61, the receding prevention member 50 is detached from the slide bracket 60. Thereby, also in the brake pedal device 1 according to the third embodiment, the load due to the rearward displacement of the dash panel P is removed before the instrument panel reinforcement I that is the vehicle body side member is largely deformed. That is, since the displacement of the steering into the vehicle interior accompanying the deformation of the instrument panel reinforcement I can be suppressed, the brake pedal device 1 according to the third embodiment can also reliably protect the upper body of the passenger in the vehicle interior. it can.

  As described above, the brake pedal device 1 according to the third embodiment includes the pedal bracket 10, the operation pedal 20, the intermediate lever 25, and the connection 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. .

  And the brake pedal apparatus 1 which concerns on 3rd Embodiment has the link 40 for a reverse movement, and the reverse movement prevention member 50 similarly to 1st Embodiment and 2nd Embodiment, The link 40 for reverse movement prevention, The 2nd support shaft 12 which connects the retreat prevention member 50 is located below the reference line L (refer FIG. 8). Thereby, when the dash panel P is displaced to the rear side of the vehicle and the distance between the dash panel P and the instrument panel reinforcement I and the like is narrowed, the brake pedal device 1 of the brake pedal device 1 The second support shaft 12 that is the connecting position can be moved downward, and the intermediate lever 25 can be moved downward together with the second support shaft 12 (see FIGS. 9 and 10). As a result, in the brake pedal device 1, as the intermediate lever 25 moves downward, the operation pedal 20 is pulled through the connection link 30, so that the operation pedal 20 is located on the vehicle front side with the first support shaft 11 as the center. It is possible to suppress the stepped portion 21 of the operation pedal 20 from being displaced toward the rear side of the vehicle.

  Also in the brake pedal device 1 according to the third embodiment, the load from the front side of the vehicle that displaces the dash panel P toward the rear side of the vehicle is the second connecting position between the reverse prevention link 40 and the reverse prevention member 50. Since it can be made to act in the direction which moves support shaft 12 below, deformation of instrument panel reinforcement I etc. can be controlled. Thereby, the said brake pedal apparatus 1 can suppress the displacement to the vehicle interior of the steering arrange | positioned in the instrument panel reinforcement I, and can protect the upper body of the passenger | crew in a vehicle interior reliably.

  And also in the brake pedal apparatus 1 which concerns on 3rd Embodiment, the reverse prevention member 50 is attached so that it can detach | leave from the slide bracket 60 which is a vehicle body side member, when a predetermined amount is displaced to the vehicle rear side. Thereby, also in 3rd Embodiment, before the load from the vehicle front side which displaces the dash panel P to the vehicle rear side causes the deformation | transformation of the instrument panel reinforcement I which is a vehicle body side member, it is possible to exclude the load. Therefore, contact with the steering wheel and the like can be prevented, thereby contributing to reliable protection of the occupant.

  In the third embodiment, the position of the fixing bolt 51 or the like that is the second mounting position is located at the same height as the mounting shaft 13 that functions as the first mounting position. Since the first distance DA connecting to a certain second support shaft 12 is longer than the second distance DB connecting the position of the fixing bolt 51 or the like and the second support shaft 12, the dash panel is caused by a vehicle front collision or the like. When P is displaced to the rear side of the vehicle, the second support shaft 12 can be reliably moved downward. That is, according to the brake pedal device 1, it is possible to reliably suppress the stepped portion 21 of the operation pedal 20 from being displaced toward the rear side of the vehicle, and at the same time, it is possible to suppress the deformation of the instrument panel reinforcement I. This can contribute to reliable protection of the upper body of the passenger.

  Also in the third embodiment, the second support shaft 12 supports the intermediate lever 25 and the retraction preventing link 40 so as to be rotatable relative to each other, and rotates the retraction preventing link 40 and the retraction preventing member 50. Since it is movably connected, the number of parts can be reduced and the manufacturing cost can be reduced.

  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 each of the above-described embodiments, the second support shaft 12 that is the rotation shaft of the intermediate lever 25 is used to connect the retraction prevention link 40 and the retraction prevention member 50 to each other so as to be rotatable. However, the present invention is not limited to this mode, and a configuration in which the retraction preventing link 40 and the retraction preventing member 50 are connected to each other so as to be rotatable may be provided separately from the second support shaft 12.

  For example, as shown in FIG. 11, the corner portion of the retraction preventing link 40 formed in a substantially L shape in a side view is rotatably supported by the second support shaft 12, and the front end portion thereof is The pedal bracket 10 is attached to the attachment shaft 13 so as to be rotatable. Then, the rear end portion of the reverse preventing link 40 having a substantially L shape and the reverse preventing member 50 are connected to each other by the connecting shaft 14 so as to be rotatable. That is, in the case shown in FIG. 11, the connecting shaft 14 functions as a connecting position according to the present invention and is positioned below the reference line L.

  Therefore, also in this case, when the dash panel P is displaced to the rear side of the vehicle and the distance between the dash panel P and the instrument panel reinforcement I and the like is reduced, the brake pedal device 1 is connected to the connecting shaft 14 which is the connecting position. Is moved downward. As the connecting shaft 14 moves downward, the retraction preventing link 40 also moves downward, so that the intermediate lever 25 also moves downward together with the second support shaft 12. Accordingly, since the operation pedal 20 is pulled downward via the connection link 30, the brake pedal device 1 rotates the operation pedal 20 to the vehicle front side around the first support shaft 11. Thus, displacement of the stepped portion 21 of the operation pedal 20 toward the vehicle rear side can be suppressed.

  Also in this case, since the load from the vehicle front side that displaces the dash panel P toward the vehicle rear side can be applied in the direction of moving the connection shaft 14 that is the connection position downward, the instrument panel reinforcement I Etc. can be suppressed. Thereby, the said brake pedal apparatus 1 can suppress the displacement to the vehicle interior of the steering arrange | positioned in the instrument panel reinforcement I, and can protect the upper body of the passenger | crew in a vehicle interior reliably.

  In the above-described embodiment, the detachment structure of the receding prevention member 50 with respect to the slide bracket 60 is formed in the slide bracket 60, the slit 61 having the wide portion 62, the fixing bolt 51 attached to the receding prevention member 50, and Although realized by the nut 52, various modes can be adopted as long as the configuration is detachable from the slide bracket 60 when the backward movement preventing member 50 is displaced by a predetermined amount toward the vehicle rear side. For example, the receding prevention member 50 may be attached to the slide bracket 60 by using a rivet that breaks when a predetermined or greater detachment load is applied. Further, the mounting shaft formed on the receding prevention member 50 is configured to be held by a holding hole formed on the slide bracket 60, and an opening width smaller than the outer diameter of the mounting shaft on the vehicle rear side in the holding hole. You may form the opening which has. In this case, when the backward movement preventing member 50 is displaced by a predetermined amount toward the vehicle rear side, the mounting shaft can be moved to the outside of the holding hole through the opening, and thus the backward movement preventing member 50 is detached from the slide bracket 60. be able to.

  Moreover, if each operation | movement in the reverse prevention apparatus of the pedal apparatus for vehicles which concerns on this invention can be implement | achieved, it will not be limited to the aspect shown in embodiment mentioned above, Arrangement | positioning of each member which comprises the brake pedal apparatus 1 Can be changed as appropriate.

  Furthermore, if each operation | movement in the reverse prevention apparatus of the pedal apparatus for vehicles which concerns on this invention is realizable, the shape of each structural member can be changed suitably. The shape of each constituent member is not limited to the shape of each constituent member of the brake pedal device 1 in the above-described embodiment. For example, the shape of each constituent member is changed to avoid interference between the constituent members. May be.

DESCRIPTION OF SYMBOLS 1 Brake pedal apparatus 10 Pedal bracket 11 1st support shaft 12 2nd support shaft 13 Mounting shaft 14 Connection shaft 20 Operation pedal 21 Step part 25 Intermediate lever 30 Connection link 40 Retraction prevention link 50 Retraction prevention member 51 Fixing bolt 52 Nut 60 Slide bracket I Instrument reinforcement L Reference line DA 1st distance DB 2nd distance

Claims (6)

A pedal bracket fixed to the dash panel on the front side of the vehicle,
An operation pedal which is rotatably arranged by the first support shaft of the pedal bracket and has a step portion used for a stepping operation toward the vehicle front side;
On the vehicle rear side with respect to the first support shaft, it is supported rotatably around a second support shaft provided in parallel with the first support shaft, and in an output direction with the second support shaft as an axis. An intermediate lever that displaces a predetermined output member toward the front of the vehicle by the rotation of
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 first retraction preventing member attached to one end of the pedal bracket so as to be rotatable and supported so as to be rotatable about the second support shaft;
One end is attached to the vehicle body side member located on the vehicle rear side, and has a second retraction preventing member that is rotatably connected to the first retraction preventing member,
The connection position where the first retraction preventing member and the second retraction preventing member are rotatably connected,
A reference line connecting a first attachment position where the first retraction prevention member is attached to the pedal bracket and a second attachment position where the second retraction prevention member is attached to the vehicle body side member. An apparatus for preventing the backward movement of a pedal device for a vehicle, wherein the device is located below the vehicle. 2. The vehicular pedal device according to claim 1, wherein one end of the second retraction prevention member is detachably attached to the vehicle body side member when displaced by a predetermined amount toward the vehicle rear side. Prevention device. 3. The reverse preventing device for a vehicular pedal device according to claim 1, wherein the second mounting position is located above the first mounting position. 4. The first distance connecting the first attachment position and the connection position is longer than the second distance connecting the second attachment position and the connection position. The reverse prevention apparatus of the pedal apparatus for vehicles in any one. The first support shaft is
The said operation pedal is supported so that rotation is possible with respect to the said pedal bracket, and the said 1st receding prevention member is supported so that rotation is possible with respect to the said pedal bracket. The reverse prevention apparatus of the pedal apparatus for vehicles in any one. The second support shaft is
The intermediate lever and the first retraction preventing member are rotatably supported, and the first retraction preventing member and the second retraction preventing member are rotatably connected. 6. A reverse preventing device for a vehicular pedal device according to any one of claims 1 to 5.

Images