JP2017199055A - Pedal support structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pedal support structure capable of sufficiently suppressing the moving amount of a pedal to an occupant side independent of deformation of a vehicle when the vehicle collides while sufficiently supporting a pedal support shaft under normal conditions.SOLUTION: A pedal support structure comprises: a bracket 12; and a support shaft mobile member 13 which moves a pedal support shaft 11 when a vehicle collides. The support shaft mobile member 13 is rotatably connected around a turning center 13a to the bracket 12. The support shaft mobile member 13 comprises: a connection part 131a connected with the pedal support shaft 11; and a rear wall (contact part) which contacts with a vehicle member at a further rear side of the vehicle when the vehicle collides. The bracket 12 comprises: a normal support part 121b which supports the pedal support shaft 11 before the vehicle collides; and a guide part 121c which guides the pedal support shaft 11 from the normal support part 121b to be alienated from the turning center 13a toward a lower part of the vehicle.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a pedal support structure for supporting a pedal in a vehicle.

  Conventionally, a pedal support structure for supporting a pedal such as a brake pedal in a vehicle is known. Here, at the time of the collision of the vehicle, the pedal may move to the rear side of the vehicle, that is, the passenger side together with the front portion of the vehicle due to the impact at that time.

  Therefore, a technique has been proposed in which the pedal support shaft, which is the pivot center of the pedal at normal times, is moved to the lower side of the vehicle when the vehicle collides, thereby suppressing the amount of movement of the pedal toward the passenger ( For example, see Patent Document 1.) In the technique described in Patent Document 1, a member that comes into contact with a vehicle member at the time of a collision is provided. The pedal support shaft is moved by transmitting the contact force of the member to the vehicle member to the pedal support shaft. In this technique, a structure is provided for supporting the pedal support shaft so that the pedal support shaft does not move due to a load caused by the pedal operation of the passenger during normal times.

JP 2007-140874 A

  Here, the deformation of the vehicle at the time of the collision varies. In the above technique, depending on the deformation of the vehicle, the contact force of the above-described member to the vehicle member may be weaker than the support force of the pedal support shaft in a normal state. As a result, the movement of the pedal support shaft during a collision may be hindered. On the other hand, if the supporting force of the pedal support shaft in the normal state is weakened, the pedal support shaft may move due to the load caused by the pedal operation of the passenger in the normal state.

  Therefore, the present invention pays attention to the above-mentioned problems, and while sufficiently supporting the pedal support shaft in the normal state, the amount of movement of the pedal toward the occupant side is sufficiently increased regardless of the deformation of the vehicle at the time of the collision. It is an object of the present invention to provide a pedal support structure that can be suppressed.

  In order to solve the above-described problems, the pedal support structure of the present invention is such that in a vehicle, a pedal having a tread surface provided at one end of a pedal arm is rotated around a pedal support shaft penetrating the other end side of the pedal arm. A pedal support structure that supports the pedal, and a bracket that rotatably supports the pedal via the pedal support shaft, and the pedal support shaft is moved to the lower side of the vehicle when the vehicle collides. A support shaft moving member, and the support shaft moving member is coupled to the bracket so as to be rotatable about a rotation center positioned substantially parallel to the pedal support shaft and located on the rear side of the vehicle, The support shaft moving member is on the front side of the vehicle with respect to the rotation center, and is connected to the pedal support shaft, on the rear side of the vehicle with respect to the rotation center, and In the event of a collision, An abutting portion that moves the connecting portion around the pivot center to move the pedal support shaft to the lower side of the vehicle by abutting on a vehicle member on the side, and the bracket includes the bracket, A normal support portion that supports the pedal support shaft before the time of the collision, and a guide portion that guides the pedal support shaft from the normal support portion so as to move away from the rotation center as it goes downward of the vehicle. It is characterized by having.

  The pedal support structure of the present invention is provided with a guide portion that guides the pedal support shaft from the normal support portion so that the pedal support shaft moves away from the rotation center of the support shaft moving member as it goes downward of the vehicle. On the other hand, the connecting portion of the support shaft moving member, that is, the pedal support shaft connected to the connecting portion is movable in the circumferential direction around the rotation center of the support shaft moving member. As described above, the direction in which the pedal support shaft can move and the guide path by the guide portion are shifted. As a result, as long as a certain amount of strong force is not applied to the pedal support shaft, the guide portion functions to prevent the movement of the pedal support shaft, so that the pedal support shaft is sufficiently supported under normal conditions. Since the pedal support shaft is connected to the connecting portion of the support shaft moving member, the contact force of the support shaft moving member to the vehicle member is directly transmitted to the pedal support shaft at the time of a collision. Due to the strong force transmitted in this way, the pedal support shaft moves while being guided by the guide portion. As described above, according to the pedal support structure of the present invention, while the pedal support shaft is sufficiently supported in normal times, the amount of movement of the pedal toward the occupant can be reduced regardless of the deformation of the vehicle at the time of collision. It can be sufficiently suppressed.

  Here, in the pedal support structure of the present invention, the strength in the compression direction in which the distance between the rotation center and the guide part is reduced between the rotation center and the guide part in the bracket is higher than that in other parts. It is preferable that a weak portion that is weak and collapses in the compression direction at the time of the collision is provided.

  According to this preferred pedal support structure, the distance between the rotation center of the support shaft moving member and the guide portion is shortened by collapsing the weak portion of the bracket at the time of collision. As a result, in the event of a collision, the shift between the direction in which the pedal spindle can move and the guide path by the guide portion is absorbed. Thereby, at the time of a collision, the pedal support shaft can be smoothly guided and moved by the guide portion.

  In this preferable pedal support structure, it is more preferable that the fragile portion is a bead extending linearly in a direction crossing the compression direction.

  According to this more preferable pedal support structure, since the weak portion is the above-mentioned bead that is easily crushed in the compression direction, the displacement between the direction in which the pedal spindle can move and the guide path by the guide portion at the time of a collision. Can be absorbed more reliably.

  Further, in a suitable pedal support structure provided with a weak portion, the weak portion extends linearly in a direction intersecting the compression direction, and the linear weak portion of the bracket is disposed at an outer peripheral edge of the bracket. More preferably, a flange is provided at an edge portion on the front side of the vehicle with respect to the intersection with the extension line.

  According to this preferred pedal support structure, the edge portion on the front side of the vehicle is reinforced by the flange at the outer peripheral edge of the bracket with respect to the intersection with the extended line of the linear weak portion. As a result, the strength of the entire bracket is improved, and the force applied to the bracket at the time of a collision is easily concentrated on the fragile portion located on the rear side of the vehicle rather than the flange, and the fragile portion can be crushed more reliably.

  In the pedal support structure of the present invention, the normal support portion is a through-hole penetrating the pedal support shaft, and the guide portion has one end on the normal support portion side continuous to the normal support portion. A slit provided along a guide path of the pedal support shaft, the one end of the guide portion facing the front-rear direction of the vehicle, and the pedal support shaft from the normal support portion at the time of the collision It is also preferable that a pair of protrusions that go over the guide portion is provided, and the protrusion on the rear side of the vehicle out of the pair of protrusions has a larger protrusion than the protrusion on the front side of the vehicle.

  According to this preferred pedal support structure, the pedal support shaft can be more reliably supported on the normal support portion by the pair of protrusions in the normal state. Here, the load caused by the pedal operation of the passenger during normal times tends to be more strongly applied to the rear side of the vehicle. According to the preferable pedal support structure described above, since the protrusion amount of the protrusion on the rear side of the vehicle is large, the pedal support shaft can be more reliably supported on the normal support portion also in this respect.

  According to the present invention, there is provided a pedal support structure capable of sufficiently suppressing the amount of movement of the pedal toward the occupant without depending on the deformation of the vehicle at the time of collision while sufficiently supporting the pedal support shaft at the normal time. Can be provided.

It is a figure which shows the pedal support structure concerning one Embodiment of this invention. It is the figure which looked at the pedal support structure shown by FIG. 1 from the back side of the vehicle. It is the perspective view which looked at the pedal support structure shown in Drawing 1 and Drawing 2 from the back side of vehicles with a brake pedal. It is the perspective view which looked at the pedal support structure shown by FIG.1 and FIG.2 from the front side of the vehicle with the brake pedal. It is a figure which shows the periphery structure of the rotation center of the pedal spindle in a bracket, and a spindle moving member. It is a figure which shows a mode that a pedal spindle is smoothly guided by a guide part because a weak part is crushed at the time of a collision.

  Hereinafter, an embodiment of the pedal support structure of the present invention will be described.

  FIG. 1 is a view showing a pedal support structure according to an embodiment of the present invention. The pedal support structure 1 supports a brake pedal 2 in a vehicle. FIG. 2 is a view of the pedal support structure shown in FIG. 1 as viewed from the rear side of the vehicle. In FIG. 1, the right side in the figure is the front side of the vehicle, and the left side in the figure is the rear side of the vehicle. 1 and 2, the upper side in the figure is the upper side of the vehicle, and the lower side in the figure is the lower side of the vehicle.

  The brake pedal 2 is a pedal in which a pedal tread surface 21 is provided at one end 221 of a pedal arm 22. The pedal arm 22 is a strip-shaped member that extends in the vertical direction of the vehicle, and a pedal tread surface 21 is provided at a lower end 221. A pair of cylindrical bosses 23 projecting in the thickness direction from the left and right surfaces of the pedal arm 22 are provided on the other end 222 on the upper side of the pedal arm 22. It is a through-hole penetrating from the tip of one boss 23 to the tip of the other boss 23 including the other end 222 of the pedal arm 22.

  The pedal support structure 1 rotatably supports the brake pedal 2 around the pedal support shaft 11 that penetrates the other end 222 side of the pedal arm 22. In the present embodiment, the pedal support shaft 11 is a bolt that is passed through a through-hole penetrating from the tip of one boss 23 to the tip of the other boss 23. In the middle of the pedal arm 22 of the brake pedal 2 that is rotatably supported, when the vehicle occupant steps on the pedal tread 21, the push rod is pushed toward the front of the vehicle to perform a braking operation. 4 is arranged.

  The pedal support structure 1 includes a bracket 12 and a support shaft moving member 13. The bracket 12 is fixed to the dash panel 3 that partitions the engine room and the vehicle compartment in the vehicle. The bracket 12 rotatably supports the brake pedal 2 via the pedal support shaft 11. The support shaft moving member 13 moves the pedal support shaft 11 to the lower side of the vehicle when the vehicle collides. By the movement of the pedal support shaft 11, the brake pedal 2 is rotated downward with the installation location of the push rod 4 as a whole while descending downward, and the pedal tread surface 21 moves to the front side of the vehicle so as to be separated from the passenger. .

  FIG. 3 is a perspective view of the pedal support structure shown in FIGS. 1 and 2 as viewed from the rear side of the vehicle together with the brake pedal. FIG. 4 is a perspective view of the pedal support structure shown in FIGS. 1 and 2 as viewed from the front side of the vehicle together with the brake pedal. In FIG. 3, the right back side in the figure is the front side of the vehicle, and the left front side in the figure is the rear side of the vehicle. In FIG. 4, the left front side in the figure is the front side of the vehicle, and the right back side in the figure is the rear side of the vehicle. 3 and 4, the upper side in the figure is the upper side of the vehicle, and the lower side in the figure is the lower side of the vehicle.

  The bracket 12 includes a pair of opposing walls 121. As described above, the pedal support shaft 11, which is a bolt, passes through one opposing wall 121, passes through the boss 23 of the brake pedal 2, passes through the other opposing wall 121, and the nut 14 is fastened to the tip thereof. ing. The nut 14 is fastened so that the brake pedal 2 can rotate around the pedal support shaft 11.

  A support shaft moving member 13 is connected to an end of the bracket 12 on the rear side of the vehicle. The support shaft moving member 13 is disposed between the one opposing walls 121. Then, the pair of side walls 131 in the support shaft moving member 13 is caulked and fixed to the pair of opposing walls 121 of the bracket 12 with a pair of pins 122. Each pin 122 is crimped so that the side wall 131 of the support shaft moving member 13 can rotate around the center of the pin 122 with respect to the opposing wall 121 of the bracket 12. Thereby, the support shaft moving member 13 is connected to the bracket 12 so as to be rotatable about a line connecting the centers of the pair of pins 122 as the rotation center 13a. The rotation center 13a is substantially parallel to the pedal support shaft 11 and is located on the rear side of the vehicle.

  The support shaft moving member 13 includes a pair of side walls 131 and a rear wall 132 that connects end edges of the pair of side walls 131 on the rear side of the vehicle, and is substantially U-shaped in a top view. And the edge part of the vehicle front side in a pair of side wall 131 becomes the connection part 131a connected with the pedal spindle 11. FIG.

  The connecting portion 131 a is on the front side of the vehicle with respect to the rotation center 13 a of the support shaft moving member 13, and is connected to the pedal support shaft 11 by passing through the pedal support shaft 11. Further, the connecting portion 131 a is sandwiched between the boss 23 of the brake pedal 2 and the opposing wall 121 of the bracket 12. And it is fastened to the opposing wall 121 together with the boss 23 by a pedal support shaft 11 and a nut 14 as bolts.

  Here, in the present embodiment, the pipe-like vehicle member 5 as a steering member is disposed away from the rear wall 132 on the further rear side of the rear wall 132 of the support shaft moving member 13. At this time, when the vehicle collides, the pedal support structure 1 may move to the rear side of the vehicle together with the dash panel 3. Compared with the dash panel 3, the vehicle member 5 is a member that has a small amount of movement to the rear side of the vehicle at the time of a collision. For this reason, at the time of a collision, the rear wall 132 of the support shaft moving member 13 comes into contact with the vehicle member 5. That is, the rear wall 132 of the support shaft moving member 13 is on the rear side of the vehicle with respect to the rotation center 13a, and serves as a contact portion that contacts the vehicle member 5 on the further rear side of the vehicle when the vehicle collides. . Then, the rear wall 132 as the abutting portion abuts on the vehicle member 5 at the time of the collision, thereby moving the connecting portion 131a around the rotation center 13a in the direction of the arrow D1 to move the pedal support shaft 11 to the lower side of the vehicle. Play the role of moving. By the movement of the pedal support shaft 11, as described above, the pedal tread surface 21 moves to the front side of the vehicle while the brake pedal 2 is lowered downward as a whole.

  FIG. 5 is a view showing a peripheral structure of the pivot center of the pedal support shaft and the support shaft moving member in the bracket. In FIG. 5, the right side in the figure is the front side of the vehicle, the left side in the figure is the rear side of the vehicle, the upper side in the figure is the upper side of the vehicle, and the lower side in the figure is the lower side of the vehicle. .

  In the bracket 12, pin through-holes 121 a through which pins 122 for caulking and fixing the side walls 131 of the support shaft moving member 13 are provided at the rear end portions of the respective facing walls 121. Although illustration is omitted, the side wall 131 of the support shaft moving member 13 is also provided with a through hole through which the pin 122 is communicated with the pin through hole 121a. The rotation center 13a of the support shaft moving member 13 passes through the center of the pin through hole 121a.

  Further, a through hole through which the pedal support shaft 11 as a bolt is passed before the time of a collision, that is, at a normal time, on the front side of the vehicle with respect to the pin through hole 121a in each opposing wall 121. A normal support portion 121b that supports the pedal support shaft 11 is provided. Although illustration is omitted, the connecting portion 131a that is the end portion of the side wall 131 of the support shaft moving member 13 is also provided with a through hole that communicates with the normal support portion 121b and through which the pedal support shaft 11 is passed.

  And the guide part 121c which guides from the normal support part 121b is provided in the downward side of the normal support part 121b in each opposing wall 121 so that it may leave | separate from the rotation center 13a toward the downward direction of a vehicle. ing. The guide part 121c is a slit provided along the guide path 121c-1 of the pedal support shaft 11 so that one end on the side of the normal support part 121b is continuous with the normal support part 121b. In addition, the guide path 121c-1 of the guide part 121c is a path curved in a convex manner toward the front side of the vehicle toward the rear lower side of the vehicle as the distance from the normal support part 121b increases. And this guidance path | route 121c-1 leaves | separated from the rotation center 13a toward the downward direction of a vehicle, that is, shifted | deviated below the circumference 13a-1 which passes the center of the normal support part 121b around the rotation center 13a. It is a route. The circumference 13a-1 is also a circumference of a circle having a radius corresponding to the distance from the rotation center 13a to the center of the through hole of the pedal support shaft 11 in the connecting portion 131a. The guide part 121c is a slit having a curved long hole formed along the guide path 121c-1.

  In addition, a pair of protrusions 121d and 121e that face the front and rear direction of the vehicle at one end of the guide portion 121c on the normal support portion 121b side and over which the pedal support shaft 11 rides from the normal support portion 121b to the guide portion 121c at the time of a collision. Is provided. Of the pair of protrusions 121d and 121e, the protrusion 121e on the rear side of the vehicle has a larger protruding amount than the protrusion 121d on the front side of the vehicle.

  Each opposing wall 121 of the bracket 12 has a lower strength than the other portions in the compression direction D2 in which the distance between the rotation center 13a and the guide portion 121c decreases between the rotation center 13a and the guide portion 121c. Sometimes, a weakened portion 121f that is crushed in the compression direction D2 is provided. In the present embodiment, the bead that extends linearly along the upper edge of the bracket 12 and bends along the direction intersecting the compression direction D2 in the middle to enter between the rotation center 13a and the guide portion 121c. Is provided. The bead bulges from the inside to the outside of the bracket 12. Said weak part 121f is corresponded to the bead part extended linearly between the rotation center 13a and the guide part 121c among this bead. In addition, another bead 121g extending along the compression direction D2 is also provided on the front side of the vehicle of the guide portion 121c.

  Further, a flange 121h is provided at an edge portion on the front side of the vehicle from the intersection 121f-2 with the extension line 121f-1 of the linear weak portion 121f on the outer peripheral edge of the bracket 12. As shown in FIGS. 3 and 4, the flange 121 h is an edge portion extending to the vicinity of the upper intersection 121 f-2 with the extension line 121 f-1 at the upper edge in each of the pair of opposed walls 121. It is provided at two locations, an edge portion extending from the front side to the lower edge of the vehicle to the vicinity of the lower intersection 121f-2 with the extension line 121f-1. That is, the flange 121h is provided in the edge part of four places as the bracket 12 whole.

  The pedal support structure 1 of the present embodiment described above has a guide portion that guides the pedal support shaft 11 from the normal support portion 121b so as to move away from the rotation center 13a of the support shaft moving member 13 toward the lower side of the vehicle. 121c is provided. On the other hand, the connecting portion 131 a of the support shaft moving member 13, that is, the pedal support shaft 11 connected to the connecting portion 131 a is movable in the circumferential direction around the rotation center 13 a of the support shaft moving member 13. . Thus, the direction in which the pedal spindle 11 can move and the guide path 121c-1 by the guide part 121c are shifted. As a result, as long as a certain amount of strong force is not applied to the pedal support shaft 11, the guide portion 121 c functions to prevent the pedal support shaft 11 from moving, so that the pedal support shaft 11 is sufficiently supported during normal operation. It becomes. Since the pedal support shaft 11 is connected to the connecting portion 131 a of the support shaft moving member 13, the contact force of the support shaft moving member 13 to the vehicle member 5 is directly transmitted to the pedal support shaft 11 at the time of a collision. Due to the strong force transmitted in this way, the pedal support shaft 11 moves while being guided by the guide portion 121c. As described above, according to the pedal support structure 1 of the present embodiment, the pedal pedal 11 is sufficiently supported in the normal state, but the brake pedal toward the occupant is not affected by the deformation of the vehicle at the time of collision. 2 can be sufficiently suppressed. Further, since the guide portion 121c functions to suppress the return of the pedal support shaft 11 once moved to the normal support portion 121b side, the amount of movement of the brake pedal 2 toward the occupant side is also sufficient in this respect. Can be suppressed.

  Here, in the pedal support structure 1 of this embodiment, the weak part 121f is provided between the rotation center 13a and the guide part 121c in the bracket 12 as described above. At the time of a collision, the fragile portion 121f is crushed so that the pedal support shaft 11 can be smoothly guided and moved by the guide portion 121c as described below.

  FIG. 6 is a diagram illustrating a state where the pedal support shaft is smoothly guided by the guide portion when the fragile portion is crushed at the time of a collision. In FIG. 6, the right side in the figure is the front side of the vehicle, the left side in the figure is the rear side of the vehicle, the upper side in the figure is the upper side of the vehicle, and the lower side in the figure is the lower side of the vehicle. .

  When a collision occurs and the rear wall 132 of the support shaft moving member 13 comes into contact with the vehicle member 5, first, the pedal support shaft 11 gets over while deforming the pair of protrusions 121d and 121e by the impact at the time of contact, and the normal support portion It moves from 121b to the guide part 121c. The transition at this time is performed along the guide route 121c-1 of the guide part 121c shown in FIG. Here, as described above, the guide path 121c-1 extends from the circumference 13a-1 having a fixed radius corresponding to the distance from the rotation center 13a to the center of the through hole of the pedal support shaft 11 in the connecting portion 131a. The route is shifted. As a result, when shifting as described above, a force F1 along the compression direction D2 that draws the rotation center 13a toward the guide path 121c-1 is applied to the fragile portion 121f. The weak part 121f is crushed by this force F1. As a result, the pedal support shaft 11 moves over the pair of protrusions 121d and 121e and smoothly transitions from the normal support portion 121b to the guide portion 121c. At this time, the rotation center 13a moves in the compression direction D2 by an amount corresponding to the amount of collapse of the fragile portion 121f.

  Subsequently, the pedal support shaft 11 moves in the arrow D1 direction toward the lower side of the vehicle while being guided by the guide 121c along the guide path 121c-1. Since the guide path 121c-1 moves away from the rotation center 13a as it goes downward of the vehicle, the force F1 along the compression direction D2 is always applied to the fragile part 121f during movement. As a result, as the movement proceeds, the fragile portion 121f gradually collapses, the amount of collapse increases, and the rotation center 13a gradually moves toward the guide path 121c-1. The pedal support shaft 11 is movable to the lowermost end portion of the guide 121c. FIG. 6 shows a pin through-hole 121a 'when moved to the lowermost end, a rotation center 13a', and a circumference 13a-1 'at that time.

  Thus, in this embodiment, the weak part 121f is crushed as the pedal support shaft 11 moves, and the distance between the rotation center 13a of the support shaft moving member 13 and the guide part 121c is reduced. As a result, at the time of a collision, there is a deviation between the direction in which the pedal support shaft 11 can move (that is, the direction along the circumference 13a-1 around the rotation center 13a) and the guide path 121c-1 by the guide portion 121c. Absorbed. Thereby, at the time of a collision, the pedal spindle 11 can be smoothly guided and moved by the guide part 121c.

  Further, once the pedal support shaft 11 moves, the direction returning to the normal support portion 121b (the direction along the circumference 13a-1 around the rotation center 13a at that time) in the direction returning to the normal support portion 121b) The guide route 121c-1 by the guide part 121c will shift | deviate. For this reason, the return of the pedal support shaft 11 once moved to the normal support portion 121b side is suppressed.

  Moreover, in this embodiment, since the weak part 121f is said bead which is easy to be crushed in the compression direction D2, at the time of a collision, the direction which the pedal spindle 11 can move, and the guide path 121c-1 by the guide part 121c, The deviation is surely absorbed.

  Moreover, in this embodiment, the edge part of the vehicle front side rather than the intersection 121f-2 with the extension line 121f-1 of the linear weak part 121f in the outer periphery of the bracket 12 is strengthened by the flange 121h. . Thereby, the strength of the entire bracket 12 is improved, and the force applied to the bracket 12 at the time of a collision is easily concentrated on the fragile portion 121f located on the rear side of the vehicle with respect to the flange 121h, so that the fragile portion 121f is reliably crushed. It has become. Moreover, in this embodiment, the part extended to the front side of the vehicle along the upper edge of the bracket 12 among the beads including the fragile part 121f, and the front side of the vehicle from the guide part 121c, along the compression direction D2. The other beads 121g provided so as to extend also play a role of easily concentrating the force applied to the bracket 12 at the time of a collision on the fragile portion 121f, like the flange 121h.

  In the present embodiment, the pedal support shaft 11 is surely supported by the normal support portion 121b by the pair of protrusions 121d and 121e in a normal state. Here, the load caused by the pedal operation of the passenger during normal times tends to be more strongly applied to the rear side of the vehicle. In this embodiment, since the protrusion amount of the protrusion 121e on the rear side of the vehicle is large, the pedal support shaft 11 is reliably supported by the normal support portion 121b also in this respect.

  In addition, embodiment described above showed only the typical form of this invention, and this invention is not limited to this embodiment. That is, various modifications can be made without departing from the scope of the present invention. Of course, such modifications are included in the scope of the present invention as long as they have the structure of the pedal support structure of the present invention.

  For example, in the above-described embodiment, the brake pedal 2 is illustrated as an example of the pedal according to the present invention. However, the pedal referred to in the present invention is not limited to this. The pedal according to the present invention may be, for example, an accelerator pedal as long as the pedal tread is provided at one end of the pedal arm, and the specific mode is not questioned.

  Moreover, in embodiment mentioned above, the pipe-shaped vehicle member 5 as a steering member is illustrated as an example of the vehicle member said to this invention. However, the vehicle member referred to in the present invention is not limited to this, and any specific aspect may be used as long as it is a member that can be abutted on the rear side of the abutting portion of the support shaft moving member. . For example, it may be a member other than the steering member, or a bracket attached to such a member.

DESCRIPTION OF SYMBOLS 1 Pedal support structure 2 Brake pedal 3 Dash panel 4 Push rod 5 Vehicle member 11 Pedal support shaft 12 Bracket 13 Support shaft moving member 13a, 13a 'Rotation center 13a-1, 13a-1' Circumference 14 Nut 21 Pedal tread 22 Pedal arm 23 Boss 121 Opposite wall 121a, 121a 'Pin through hole 121b Normal support part 121c Guide part 121c-1 Guide path 121d, 121e Protrusion 121f Weak part 121f-1 Extension line 121f-2 Intersection 121g Other bead 121h Flange 122 Pin 131 Side wall 131a Connecting part 221 One end 222 Other end D2 Compression direction

Claims (5)

In a vehicle, a pedal support structure for supporting a pedal having a pedal tread surface provided at one end of a pedal arm so as to be rotatable about a pedal support shaft penetrating the other end side of the pedal arm,
A bracket that rotatably supports the pedal via the pedal support shaft;
A support shaft moving member that moves the pedal support shaft to the lower side of the vehicle when the vehicle collides,
The support shaft moving member is connected to the bracket so as to be rotatable about a rotation center positioned substantially parallel to the pedal support shaft and located on the rear side of the vehicle,
The support shaft moving member is
A connecting portion on the front side of the vehicle with respect to the rotation center and connected to the pedal support shaft;
At the rear side of the vehicle with respect to the center of rotation, the pedal support shaft is moved around the center of rotation by contacting the vehicle member further on the rear side of the vehicle at the time of the collision. A contact portion that moves downward of the vehicle;
With
The bracket is
A normal support portion for supporting the pedal support shaft at a time before the collision;
A guide portion that guides the pedal support shaft from the normal support portion so as to move away from the center of rotation toward the lower side of the vehicle;
A pedal support structure comprising:   In the compression direction in which the distance between the rotation center and the guide portion is reduced between the rotation center and the guide portion in the bracket, the strength is weaker than other portions, and in the collision, the bracket is crushed in the compression direction. A pedal support structure comprising a fragile portion.   The pedal support structure according to claim 2, wherein the fragile portion is a bead extending linearly in a direction intersecting the compression direction. The fragile portion extends linearly in a direction intersecting the compression direction;
The flange is provided in the edge part of the front side of the said vehicle rather than the intersection with the extended line of the said said weak part of the said linear in the outer periphery of the said bracket. Pedal support structure. The normal support portion is a through-hole penetrating the pedal support shaft;
The guide part is a slit provided at one end of the normal support part side along the guide path of the pedal support shaft continuously to the normal support part,
The one end of the guide portion is provided with a pair of protrusions that face the front-rear direction of the vehicle, and that the pedal support shaft rides from the normal support portion to the guide portion at the time of the collision,
The pedal support according to any one of claims 1 to 4, wherein, of the pair of protrusions, a protrusion on a rear side of the vehicle has a larger protruding amount than a protrusion on a front side of the vehicle. Construction.

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