JP3804651B2 - Pedal displacement control structure for vehicles - Google Patents

Description

  The present invention relates to a pedal displacement control structure for a vehicle.

  Conventionally, various countermeasures have been taken as countermeasures when an external force of a predetermined value or more acts from the front of the vehicle. As an example of this type of countermeasure, a configuration disclosed in Patent Document 1 below can be given.

  Briefly, as shown in FIG. 9, in the configuration disclosed in this publication, the steering column 402 covering the steering shaft 400 includes a tilt bracket 408 including an upper plate member 404 and a pair of side plate members 406, and these side plates. It is supported on the vehicle body side by a shaft 410 that penetrates between the members 406 and supports the lower edge of the steering column 402.

  Further, a knee protector 412 having a substantially arcuate surface shape and elastically deformable is disposed below the tilt bracket 408 described above. The knee protector 412 is elastically supported on the lower edge side of the steering column 402 via an elastically deformable stay 414.

  According to the above configuration, when an external force of a predetermined value or more acts from the front of the vehicle, the occupant tries to move inertially toward the front side of the vehicle, and accordingly, the occupant's legs move inertially in the same direction while bending from the knee. try to. For this reason, if the knee protector 412 is not provided, the occupant's knees may come into contact with the tilt bracket 408. However, if the knee protector 412 is disposed below the tilt bracket 408 as described above, the occupant's knee only comes into contact with the knee protector 412.

  Such a configuration in which the knee protector 412 is disposed is also considered to be meaningful as a countermeasure when an external force of a predetermined value or more is applied from the front of the vehicle, but there is another countermeasure in relation to the occupant's legs. It is possible to approach from the viewpoint, and it is important from the viewpoint of multiple protection to establish the countermeasures in a multifaceted relationship with the occupant's legs.

As a result of experimenting from such a point of view, the present inventor has found that a brake pedal or the like for a vehicle such as a brake pedal paying attention to deformation or displacement behavior of a body panel or the like when an external force of a predetermined value or more acts from the front of the vehicle. It came to the conclusion that controlling the displacement of the pedal is also a very effective measure.
Japanese Utility Model Publication No. 1-73464

  In view of the above knowledge, an object of the present invention is to provide a vehicle pedal displacement control structure capable of controlling the displacement of the tread surface of a vehicle pedal when an external force of a predetermined value or more acts from the front of the vehicle.

In the pedal displacement control structure for a vehicle according to the first aspect of the present invention, the front end side is coupled to the first vehicle body side structural member that is displaced substantially to the rear side of the vehicle when an external force of a predetermined value or more acts on the front portion of the vehicle. And a pedal bracket having a rear end coupled to a second vehicle body side structural member that is disposed substantially on the vehicle rear side relative to the first vehicle body side structural member and is not substantially displaced toward the vehicle rear side even when the external force is applied. A suspension-type vehicular pedal in which a rotating shaft portion serving as a swing center is supported by the pedal bracket, and a rear end side of the pedal bracket and a second vehicle body side component member when the external force is applied. Release means for releasing the coupling state and releasing the rear end side of the pedal bracket from the second vehicle body side component member to the substantially rear side of the vehicle, and the rear end side of the pedal bracket after the release is substantially the rear side of the vehicle and substantially below the vehicle vehicle by displacing the side It is characterized by having a guide means for displacing Dal of the tread substantially toward the front of the vehicle, a.

In the vehicle pedal displacement control structure according to the second aspect of the present invention, the front end side is coupled to the first vehicle body side structural member that is displaced substantially toward the rear of the vehicle when an external force of a predetermined value or more acts on the front portion of the vehicle. And a pedal bracket having a rear end coupled to a second vehicle body side structural member that is disposed substantially on the vehicle rear side relative to the first vehicle body side structural member and is not substantially displaced toward the vehicle rear side even when the external force is applied. A suspension-type vehicular pedal in which a rotating shaft portion serving as a swing center is supported by the pedal bracket, and a rear end side of the pedal bracket and a second vehicle body side component member when the external force is applied. releasing the coupling state, displacing the rear end side of the pedal bracket and withdrawal means for disengaging from the second vehicle body structure member, the rear end side of the pedal bracket after leaving the rear of the vehicle and substantially the lower side of the vehicle With the pedal surface of the vehicle Has a guide means for displacing toward the front of the vehicle, the pedal bracket substantially by the rotational force substantially toward the front of the vehicle received from the pressing force and the guide means to the rear of the vehicle received from the first vehicle body component member When a compressive load in the vehicle front-rear direction is applied, it is buckled in a substantially “heavy” shape in a side view.

  A pedal displacement control structure for a vehicle according to a third aspect of the present invention is the vehicle pedal displacement control structure according to the first or second aspect, wherein the guide means is an inclined surface inclined substantially toward the rear side of the vehicle and substantially toward the lower side of the vehicle. It is characterized by that.

  According to the first aspect of the present invention, when an external force of a predetermined value or more acts on the front portion of the vehicle, the first vehicle body side component member is displaced substantially toward the rear side of the vehicle. For this reason, the pedal bracket in which the first vehicle body side structural member and the front end side are coupled is also displaced in the same direction, and at this time, the coupling state between the rear end side of the pedal bracket and the second vehicle body side structural member by the detaching means Canceled. Thereby, the rear end side of the pedal bracket is detached from the second vehicle body side component member substantially toward the vehicle rear side.

  After detachment, the rear end side of the pedal bracket is displaced substantially downward with respect to the vehicle by the guide means. Accordingly, when the pedal bracket is viewed from the side, the pedal bracket is rotationally displaced substantially forward of the vehicle while being displaced substantially backward of the vehicle. Paying attention to the load acting on the pedal bracket in this process, a pressing force to the vehicle rear side substantially acts from the first vehicle body side component member, and a rotational force to the vehicle front side acts from the guide means. When a compressive load in the vehicle front-rear direction is applied to the pedal bracket, a rotational displacement approximately forward of the vehicle occurs on the rear end side of the pedal bracket. As a result, the tread surface of the vehicle pedal supported by the pedal bracket is displaced substantially toward the front side of the vehicle.

  According to the second aspect of the present invention, when an external force of a predetermined value or more acts on the front portion of the vehicle, the first vehicle body side component member is displaced substantially toward the rear side of the vehicle. For this reason, the pedal bracket in which the first vehicle body side component member and the front end side are coupled is also displaced in the same direction, and at this time, the coupling state between the rear end side of the pedal bracket and the second vehicle body side component member is caused by the detachment means. Canceled.

  For this reason, the rear end side of the pedal bracket is displaced to the vehicle lower side by the guide means. Accordingly, when the pedal bracket is viewed from the side, the pedal bracket is rotationally displaced substantially forward of the vehicle while being displaced substantially backward of the vehicle. Paying attention to the load acting on the pedal bracket in this process, a pressing force to the vehicle rear side substantially acts from the first vehicle body side component member, and a rotational force to the vehicle front side acts from the guide means. When a compressive load in the vehicle front-rear direction is applied to the pedal bracket, the pedal bracket is buckled in a substantially “h” shape in a side view, and thereby the rear end side of the pedal bracket is rotationally displaced substantially toward the vehicle front side. As a result, the tread surface of the vehicle pedal supported by the pedal bracket is displaced substantially toward the front side of the vehicle.

  According to the third aspect of the present invention, since the guide means is an inclined surface that is inclined substantially toward the vehicle rear side and substantially below the vehicle, the rear end side of the pedal bracket slides on the inclined surface. It is displaced substantially to the vehicle rear side and to the vehicle lower side.

  As described above, the vehicle pedal displacement control structure according to the present invention has an excellent effect that the displacement of the tread surface of the vehicle pedal can be controlled when an external force of a predetermined value or more acts from the front of the vehicle. Have.

  Hereinafter, an embodiment of claims 1 to 3 will be described with reference to FIGS.

  FIG. 1 schematically shows an assembled state of the peripheral structure of the suspension type brake pedal 10, and FIG. 2 shows the brake pedal 10 when an external force exceeding a predetermined value is applied from the front of the vehicle. Behavior is shown. Hereinafter, the overall configuration of the peripheral structure including the brake pedal 10 will be described with reference to these drawings.

  A dash panel 16 is arranged substantially vertically at a position separating the engine room 12 and the vehicle interior space 14. The upper end portion of the dash panel 16 is fixed by spot welding or the like to a front surface of a cowl inner panel (not shown) that is arranged with the vehicle width direction as a longitudinal direction and forms a part of the cowl. The lower end of the dash panel 16 is fixed to a floor panel (not shown) by spot welding or the like.

  On the front side of the dash panel 16 described above, the brake booster 20 functioning as a pedal force enhancing means for increasing the pedal force of the occupant applied to the brake pedal 10, and the pressure increased by the brake booster 20 as a hydraulic pressure. A hydraulic pressure conversion master cylinder 22 for conversion and a reservoir tank (not shown) for storing and replenishing brake fluid following a volume change of the hydraulic system are integrally provided.

  On the other hand, on the rear side of the dash panel 16, a pedal bracket 26 that supports the brake pedal 10 so as to be swingable is disposed. The pedal bracket 26 includes a base plate portion 28 that constitutes a mounting seat surface for the dash panel 16, a pair of side plate portions 30 that extend substantially parallel to the vehicle rear side from the base plate portion 28, and side plate portions that face each other. 30 and a top plate portion (not shown) for connecting the upper edge side. Accordingly, the pedal bracket 26 as a whole is formed in a U-shaped cross section that is long in the vehicle front-rear direction and has a bottom surface opened. In addition, an opening 34 for reducing the rigidity in the vehicle front-rear direction is formed at a predetermined position on the front end side of each side plate portion 30 and the rigidity in the vehicle front-rear direction is partially increased on the upper edge side. The bead 36 is formed. The bottomed cylindrical collars 80 and 82 are fixed to the four front corners of the base plate portion 28 of the pedal bracket 26 described above (the collars 80 and 82 will be described in detail later). In the base plate portion 28, the mounting bolts 84 are inserted from the base plate portion 28 side with the collars 80 and 82 being in contact with the dash panel 16, and a nut 86 is screwed onto the mounting bolt 84 from the dash panel 16 side. This is fixed to the dash panel 16. As a result, the front end side of the pedal bracket 26 (that is, the base plate portion 28) is located at the upper portion (that is, the portion where the pair of collars 80 disposed on the upper stage side) and the lower portion (that is, the pair of positions disposed on the lower stage side). It is coupled to the dash panel 16 at the location where the collar 82 is disposed. Note that a dash insulator (not shown) used as a sound insulating material is interposed between the dash panel 16 and the base plate portion 28.

  A slide bracket 44 having a substantially U-shaped cross section is fixed to the rear end side of the pedal bracket 26 in a partially superposed state. As shown in FIG. 3, the top wall portion 44 </ b> A of the slide bracket 44 has a narrow width portion 46 </ b> A having a narrow opening width and a wide width portion 46 </ b> B communicating with the narrow width portion 46 </ b> A and having a wide opening width. A slit 46 is formed. Further, a front end portion of a slide plate 50 arranged in a state of protruding from the instrument panel reinforcement 48 substantially to the front side of the vehicle is arranged immediately above the slide bracket 44 described above. The instrument panel reinforcement 48 is a high-strength member arranged with the vehicle width direction as the longitudinal direction, and the slide plate 50 is also set to a predetermined high strength. Then, the fixing bolt 52 is inserted from the back surface side of the top wall portion 44A of the slide bracket 44 into the narrow width portion 46A of the slit 46 and the front end portion of the slide plate 50, and is screwed with the nut 54. The rear end side is coupled to the slide plate 50.

  Furthermore, the opening width dimension of the narrow portion 46A of the slit 46 described above is set slightly larger than the shaft diameter of the fixing bolt 52 and smaller than the head diameter, and the opening width dimension of the wide portion 46B is the head diameter. Is set larger than. Therefore, when the fixing bolt 52 is located in the narrow width portion 46A that is the assembly position, the rear end side (slide bracket 44) of the pedal bracket 26 is maintained in a state of being coupled to the slide plate 50. When the fixing bolt 52 is positioned at the relatively wide portion 46B by the displacement of the pedal bracket 26 substantially toward the rear side of the vehicle, the rear end side of the pedal bracket 26 is detached from the slide plate 50. Yes. Further, the lower end surface of the slide plate 50 is inclined at a predetermined angle substantially toward the vehicle lower side, and the inclined surface 50A is used as a sliding guide surface with the top wall portion 44A of the slide bracket 44 in the pedal bracket 26.

  A suspended brake pedal 10 is disposed between the pair of side plate portions 30 of the pedal bracket 26 described above. The brake pedal 10 includes a pedal support portion 56 formed by appropriately bending a narrow plate material, and a pedal pad 58 provided at the lower end portion of the pedal support portion 56 and applied with a pedaling force of an occupant. ing. Note that a return spring (not shown) is locked to the pedal support portion 56 of the brake pedal 10, and the brake pedal 10 is always urged in a direction to return to the initial position by the return spring.

  Further, a rotary shaft portion 60 is provided at the upper end portion of the pedal support portion 56 of the brake pedal 10, and the rotary shaft portion 60 is pivotally supported by the pair of side plate portions 30 of the pedal bracket 26. When an example of the configuration of the rotating shaft portion 60 is briefly touched, a substantially cylindrical pedal boss is inserted into a through hole formed in the upper end portion of the pedal support portion 56, and cylindrical ends are formed at both end portions of the pedal boss. After the bushes are respectively inserted and the cylindrical collars are inserted into both the bushes, the mounting bolts 62 are inserted from the outside of one side plate portion 30 and the washer (not shown) is inserted from the outside of the other side plate portion 30. The rotary shaft 60 is configured by screwing the nut 64 through the screw.

  Further, a tip portion of a push rod (operating rod) 66 protruding from the brake booster 20 and penetrating the dash panel 16 is connected to an intermediate portion of the pedal support portion 56 of the brake pedal 10. Specifically, a clevis 68 having a substantially U-shaped cross section is attached to the tip of the push rod 66. Inside the clevis 68, a pedal support 56 is disposed in an inserted state. A clevis pin 70 penetrates both sides of the clevis 68 and the pedal support 56, and a retaining ring, a β pin, and the like are provided at the penetrating end. The push rod 66 and the pedal support portion 56 are connected so as to be relatively rotatable by being fitted and removed.

  Here, the configuration of the collars 80 and 82 described above is as follows. As shown in FIGS. 4A and 4B, the collar 82 arranged on the lower side is a collar body 88 formed in a bottomed cylindrical shape including a bottom wall 88A and a peripheral wall 88B, and the color body 88. And a ring-plate-shaped collar mounting portion 90 extending radially outward from the rear end portion.

  The head 84A of the mounting bolt 84 described above is welded to the bottom wall 88A of the collar body 88 in advance. Therefore, the collar 82 is sub-assembled with the mounting bolt 84 assembled in advance. In this state, the collar 82 is fixed to the base plate portion 28 by fixing the collar mounting portion 90 to the lower portion of the front surface of the base plate portion 28 by welding or the like. In this embodiment, the head 84A of the mounting bolt 84 is welded in advance to the bottom wall 88A of the collar body 88. However, the present invention is not limited to this, and the mounting bolt 84 is inserted into the collar 80 from the rear side of the base plate portion 28. You may do it. In this case, a bolt insertion hole may be formed at the mounting position of the collar 80 of the base plate portion 28. In the present embodiment, the head 84A of the mounting bolt 84 is welded to the bottom wall 88A of the collar body 88 in advance, and the nut 86 is screwed from the dash panel 16 side. In the case of adopting a configuration for insertion into the collar 80, the nut 86 may be a weld nut. The above-described configuration is the same for the collar 80 disposed at the upper part on the front end side of the base plate portion 28.

  Here, in the present embodiment, a plurality of slits 92 are formed in the peripheral wall 88B of the color main body 88 in the collar 82 arranged on the lower side described above. The slit width of the slit 92 is set to be narrow, and the longitudinal direction thereof is set to a direction along the axial direction of the collar 82. Thereby, about the collar 82 arrange | positioned at the lower stage side, the rigidity with respect to the axial direction (substantially vehicle front-back direction) is reduced intentionally. As a result, in this embodiment, the rigidity in the axial direction of the collar 82 arranged on the lower side is set to be relatively lower than the rigidity in the axial direction of the collar 80 arranged on the upper stage side.

  In other words, the rigidity of the collar 82, that is, the buckling load, is set higher than the buckling load of the pedal bracket 26 so that the pedal bracket 26 buckles before the collar 82 due to an external force from the front side of the vehicle. . Note that the collars 80 and 82 of this embodiment are mainly subjected to a tensile force during normal operation of the brake pedal 10, so that even if the buckling load against compression is reduced as in the collar 82 of this embodiment, There is no effect during operation.

  In the present embodiment, the collars 80 and 82 described above are made of metal having a predetermined hardness in consideration of welding with other parts. However, the present invention is not limited thereto, and the collars 80 and 82 may be made of resin. The collar 80 arranged on the upper side may be made of metal, and the collar 82 arranged on the lower side may be made of resin. Further, the collars 80 and 82 described above generally have various irregularities on the surface of the dash panel 16 instead of being flat, so that the attachment of the pedal bracket 26 to the dash panel 16 is not hindered by the irregularities ( The pedal bracket 26 is a part used to adjust the mounting state of the pedal bracket 26 to the dash panel 16 (so that the pedal bracket 26 does not interfere with the uneven portion of the dash panel 16). The fastening property between the panel 16 and the pedal bracket 26 is improved).

  Next, the operation and effect of this embodiment will be described.

  As shown in FIG. 1, when the brake is not operated, the brake pedal 10 is held at the initial position by the urging force of the return spring. In this state, when the occupant applies a pedaling force to the pedal pad 58 of the brake pedal 10, the brake pedal 10 is swung to the front side of the vehicle substantially around the rotation shaft portion 60, and the push rod 66 is pressed to the front side of the vehicle. Is done. Thus, the occupant's pedaling force applied to the pedal pad 58 is transmitted to the brake booster 20 via the push rod 66 to be enhanced, and then converted into hydraulic pressure by the master cylinder 22.

  On the other hand, when an external force of a predetermined value or more acts from the front of the vehicle, the load at that time is input to the dash panel 16 via the master cylinder 22 and the brake booster 20. For this reason, as shown in FIG. 2, the dash panel 16 may be displaced to the rear side of the vehicle (and the upper side of the vehicle).

  In this case, since the slide plate 50 to which the rear end side of the pedal bracket 26 is coupled and the instrument panel reinforcement 48 to which the slide plate 50 is attached are both high-strength members, the pedal bracket 26 has a substantially vehicle accompanying the rearward displacement of the dash panel 16. While the load to the rear side is input, the reaction force at that time is input from the instrument panel reinforcement 48 side as a load to the vehicle front side. In addition, since the openings 34 are formed in the pair of side plate portions 30 of the pedal bracket 26, the pedal bracket 26 has a low rigidity in the vehicle longitudinal direction. For these reasons, the pedal bracket 26 is buckled substantially in the vehicle front-rear direction. At this time, since the bead 36 is formed on the upper edge side of the pair of side plate portions 30 of the pedal bracket 26, the rigidity in the substantially vehicle longitudinal direction on the upper edge side of the side plate portion 30 is partially high. It has become. Therefore, as a whole, the pedal bracket 26 is buckled in a substantially “h” shape in a side view.

  Further, at this time, a load toward the rear side of the vehicle is input to the slide bracket 44 fixed to the rear end side of the pedal bracket 26, so that the slide bracket 44 is substantially rearward of the slide guide plate 50. To slide slightly. For this reason, the fixing bolt 52 positioned in the narrow portion 46 </ b> A of the slit 46 is positioned relatively to the wide portion 46 </ b> B of the slit 46. Accordingly, the head of the fixing bolt 52 comes out of the wide portion 46B of the slit 46, and the slide bracket 44 is detached from the slide plate 50.

  The slide bracket 44 after detachment is guided on the inclined surface 50A of the slide plate 50, and slides on the inclined surface 50A substantially to the rear side of the vehicle and to the substantially lower side of the vehicle. As a result, as can be seen from the comparison between FIGS. 1 and 2, the pedal bracket 26 is rotationally displaced substantially toward the front side of the vehicle. In this way, when an external force of a predetermined value or more acts from the front of the vehicle, the rear end side of the pedal bracket 26 is detached from the slide plate 50, whereby the instrument panel reinforcement 48 is connected to the instrument panel via the pedal bracket 26 and the slide bracket 50. It is possible to prevent a relatively large load from being input.

  When the above-described process is summarized by paying attention to the load acting on the pedal bracket 26, first, the pressing force to the vehicle rear side accompanying the rearward displacement of the dash panel 16 and the input from the slide guide plate 50 and the instrument panel reinforcement 48 are first performed. Due to the reaction force toward the front side of the vehicle, a compressive load acting substantially in the vehicle front-rear direction acts on the pedal bracket 26. Further, due to the rotational force when the pedal bracket 26 is rotationally displaced to the front side of the vehicle by being guided by the slide guide plate 50, a compression load in the front-rear direction of the vehicle acts on the pedal bracket 26. Accordingly, a large (doubled) compressive load in the vehicle front-rear direction acts on the pedal bracket 26. In addition, the compression load is greatly applied to the lower collar 82 serving as a connecting portion to the dash panel 16 in the lower portion on the front end side of the pedal bracket 26 in consideration of the deformation mode of the pedal bracket 26.

  Here, in the present embodiment, the upper collar 80 serving as a connecting portion to the dash panel 16 in the upper part on the front end side of the pedal bracket 26 is a conventionally used cylindrical collar with a predetermined hardness, The lower collar 82 which is a connecting portion to the dash panel 16 in the lower portion of the front end side of the pedal bracket 26 is formed with a plurality of slits 92 in the axial direction to reduce the rigidity in the axial direction (substantially in the vehicle longitudinal direction). Therefore, when the aforementioned compressive load in the vehicle longitudinal direction is concentrated on the lower part on the front end side of the pedal bracket 26, the upper side collar 80 is hardly buckled in the axial direction. However, the lower collar 82 is buckled in the axial direction. That is, the amount of compressive displacement at the front end side lower portion (collar 82) is larger than the amount of compressive displacement at the front end side upper portion (collar 80) of the pedal bracket 26. For this reason, the pedal bracket 26 undergoes rotational displacement substantially forward of the vehicle due to the above-described configuration (configuration in which the rear end side of the pedal bracket 26 is slid substantially downward along the slide guide plate 50). In addition, there is a rotational displacement approximately forward of the vehicle corresponding to the difference between the compression displacement amount of the collar 80 and the compression displacement amount of the collar 82. Therefore, the pedal pad 58 of the brake pedal 10 in which the rotating shaft portion 60 is supported by the pedal bracket 26 is largely displaced toward the front side of the vehicle.

  In the above-described operation, the buckling / detachment of the pedal bracket 26 precedes, and then the collar 82 disposed on the lower stage side buckles. However, the pedal bracket 26 buckles after the collar 82 precedes buckling.・ There is no problem even if you leave, resulting in the same effect. Further, since various deformation modes of the dash panel 16 when an external force of a predetermined value or more is applied from the front of the vehicle, for example, the dash panel 16 tilts forward as shown by a one-dot chain line in FIG. In the case of deformation, the compression load acts on the collar 82 more effectively, so that the collar 82 can be buckled more reliably and easily.

  As described above, in the present embodiment, when an external force of a predetermined value or more acts from the front of the vehicle, the pedal bracket 26 is configured to rotate and displace to the vehicle front side while buckling the pedal bracket 26 in the vehicle front-rear direction. Since the axial rigidity of the collar 82 on the lower front side of the base plate portion 28 is intentionally set lower than the axial rigidity of the collar 80 on the upper front side, the pedal bracket is bent by buckling the collar 82 when the external force is applied. The amount of rotational displacement of the vehicle 26 toward the vehicle front side can be increased, whereby the pedal pad 58 can be effectively displaced toward the vehicle front side effectively. In other words, according to the present embodiment, it is possible to control the pedal pad 58 of the brake pedal 10 to be largely displaced toward the front side of the vehicle when an external force of a predetermined value or more acts from the front side of the vehicle. Become. As a result, it is possible to suppress bending of the knees of the leg due to the inertial movement of the occupant when an external force of a predetermined value or more acts from the front of the vehicle, and in turn, the occupant's leg knee can be moved away from the steering column. .

  Further, in the present embodiment, the existing collars 80 and 82 are used so that the compression displacement amount at the front end side lower portion is larger than the compression displacement amount at the front end side upper portion of the pedal bracket 26. The structure can be simplified without increasing the number of points.

  Hereinafter, some other embodiments will be described with reference to FIGS. In addition, about the same component as embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  The embodiment shown in FIGS. 5A and 5B is characterized in that a bellows portion 102A is formed in the collar body 102 of the collar 100 disposed at the lower front surface of the base plate portion 28 of the pedal bracket 26. . The collar 100 is made of a resin having a predetermined hardness.

  According to the above configuration, when a compressive load in the vehicle front-rear direction is applied to the pedal bracket 26, the bellows portion 102A of the collar 100 disposed at the lower front portion of the base plate portion 28 is buckled, and the pedal bracket 26 is moved to the vehicle front side. To effectively rotate and displace. Therefore, the pedal pad 58 can be effectively displaced substantially forward of the vehicle as in the above-described embodiment.

  6 (A) and 6 (B) is characterized in that a bent portion 104 having a U-shaped cross section is integrally formed on the lower side of both side portions of the base plate portion 28 of the pedal bracket 26. There is. The bent portion 104 is formed by punching out the developed shape at the same time when the base plate portion 28 is punched out with a press, and then bending it. Then, the lower end side of the base plate portion 28 is coupled to the dash panel 16 by fixing the front end portion of the bent portion 104 with mounting bolts 84 and nuts 86. The mounting bolt 84 is welded to the bent portion 104 in advance. However, when it is retrofitted, a predetermined bolt insertion hole may be formed in the base plate portion 28.

  In addition, although not shown in the figure, when the above configuration is adopted, the axial length of the collar 80 arranged at the upper front portion of the base plate portion 28 should be set to match the folding width of the folding portion 104. Thus, the fixed state of the pedal bracket 26 to the dash panel 16 is stabilized.

  According to the above configuration, when a compressive load in the vehicle longitudinal direction is applied to the pedal bracket 26, the bent portion 104 formed on the lower side of both side portions of the base plate portion 28 is bent and deformed by the bent width. The pedal bracket 26 is effectively rotationally displaced substantially toward the front side of the vehicle. Therefore, the pedal pad 58 can be effectively displaced substantially forward of the vehicle as in the above-described embodiment.

  Further, the embodiment shown in FIGS. 7A and 7B is characterized in that a case-like base plate case 106 is used instead of the plate-like base plate portion 28. More specifically, the base plate case 106 is formed integrally with a case main body 108 having a depth set so that the amount of compressive displacement of the lower portion on the front end side of the pedal bracket 26 becomes a predetermined amount, and an opening end of the case main body 108. The lid body 110 is made up of. The lid 110 is a portion corresponding to the base plate portion 26 in the above-described embodiment.

  The base plate case 106 described above is coupled to the dash panel 16 by fixing the bottom wall 88 </ b> A of the case body 108 to the dash panel 16 by means of mounting bolts 84 and nuts 86. Further, bent flanges 110A are integrally formed at both lower portions of the lid 110, and these flanges 110A and both side walls 108A of the case body 108 are joined by rivets 112 in which a shear load is set to a predetermined load. Has been. Here, the predetermined load is not sheared by a load applied during normal operation of the brake pedal 10, but is sheared when a load is applied that causes the dash panel 16 to be displaced rearward substantially toward the rear of the vehicle. It means load.

  According to the above configuration, when a compressive load in the vehicle longitudinal direction acts on the pedal bracket 26, the rivet 112 that joins the lid 110 of the base plate case 106 and the case main body 108 is sheared. For this reason, as shown in FIG. 8, the lid 110 is pushed approximately forward of the vehicle around the hinge 114, thereby effectively rotating and displacing the pedal bracket 26 substantially forward of the vehicle. Therefore, the pedal pad 58 can be effectively displaced substantially forward of the vehicle as in the above-described embodiment.

  In addition, the pedal bracket 26 and the slide bracket 44 fixed to the rear end side in the above-described embodiment correspond to the “pedal bracket” in the present invention, and the dash panel 16 is the “first vehicle body side component” in the present invention. The instrument panel reinforcement 48 and the slide plate 50 fixed thereto correspond to the “second vehicle body side component” in the present invention, and also have a function as the “second vehicle body side component”. The 50 inclined surfaces 50A correspond to the “guide means” in the present invention.

  In the above-described embodiment, the present invention is applied to a suspension type main brake pedal. However, the present invention is not limited to this, and is applied to a suspension type clutch pedal and a depression type parking brake pedal. It can also be applied to.

  In the present embodiment, the slit 46 is formed in the slide bracket 44 and the slide bracket 44 is detached from the slide plate 50 using the shape of the slit 46. However, the present invention is not limited to this. Any configuration can be applied as long as the rear end side of the pedal bracket 26 is detached from the slide plate 50 by the input of the load. For example, it is possible to apply various configurations such as connecting the slide bracket 44 and the slide plate 50 with a shear pin that shears with a load of a predetermined value or more.

It is a side view showing the whole composition of the pedal displacement control structure for vehicles concerning this embodiment. FIG. 2 is a side view showing a state after an external force of a predetermined value or more acts from the front of the vehicle in the structure shown in FIG. 1. It is a perspective view which expands and shows the separation structure of the slide bracket and slide plate shown by FIG. (A) is sectional drawing which expands and shows the peripheral part containing the color | collar of the lower stage shown by FIG. 1, (B) is a rear view of the said color peripheral part. (A) is sectional drawing which expands and shows the peripheral part containing the collar provided with the bellows part which is other embodiment, (B) is a rear view of the said collar peripheral part. (A) is sectional drawing which expands and shows the baseplate part provided with the bending part which is other embodiment, (B) is a rear view of the said bending part. (A) is the side view which expands and shows the base plate case which is other embodiment partially, and (B) is a rear view of the said base plate case. It is sectional drawing which shows the state by which the cover body of the baseplate case shown by FIG. 7 was pressed to the vehicle forward side substantially. It is a perspective view which shows a conventional structure.

Explanation of symbols

10 Brake pedal (vehicle pedal)
16 Dash panel (first body side component)
26 Pedal bracket 44 Slide bracket (pedal bracket)
46 Slit (detachment means)
48 Instrument panel reinforcement (second body component)
50 Slide plate (second vehicle body component)
50A inclined surface (guide means)
58 Pedal pad (tread)
60 Rotating shaft

Claims (3)

The front end side is coupled to the first vehicle body side structural member that is displaced substantially to the vehicle rear side when an external force of a predetermined value or more is applied to the vehicle front portion, and is further to the vehicle rear side than the first vehicle body side structural member. A pedal bracket having a rear end coupled to a second vehicle body side component that is arranged and hardly displaced to the vehicle rear side even when the external force is applied;
A suspension-type vehicle pedal in which a rotating shaft portion serving as a swing center is supported by the pedal bracket;
When the external force is applied, the coupling state between the rear end side of the pedal bracket and the second vehicle body side structural member is released, and the rear end side of the pedal bracket is detached from the second vehicle body side structural member substantially to the vehicle rear side. A disengagement means,
Guiding means for displacing the tread surface of the vehicular pedal to the substantially front side of the vehicle by displacing the rear end side of the pedal bracket after the disengagement to substantially the vehicle rear side and the vehicle lower side;
A pedal displacement control structure for a vehicle. The front end side is coupled to the first vehicle body side structural member that is displaced substantially to the vehicle rear side when an external force of a predetermined value or more is applied to the vehicle front portion, and is further to the vehicle rear side than the first vehicle body side structural member. A pedal bracket having a rear end coupled to a second vehicle body side component that is arranged and hardly displaced to the vehicle rear side even when the external force is applied;
A suspension-type vehicle pedal in which a rotating shaft portion serving as a swing center is supported by the pedal bracket;
Detaching means for releasing the coupling state between the rear end side of the pedal bracket and the second vehicle body side component when the external force is applied, and separating the rear end side of the pedal bracket from the second vehicle body side component;
Guiding means for displacing the tread surface of the vehicular pedal to the substantially front side of the vehicle by displacing the rear end side of the pedal bracket after the disengagement to substantially the vehicle rear side and the vehicle lower side;
Have
The pedal bracket has a side surface when a compression load in a substantially vehicle front-rear direction is applied by a pressing force to the substantially vehicle rear side received from the first vehicle body side component and a rotational force to the substantially vehicle front side received from the guide means. Buckle in the shape of the letter "he",
A pedal displacement control structure for a vehicle. The guide means is an inclined surface that is inclined substantially toward the rear side of the vehicle and substantially toward the lower side of the vehicle.
3. The pedal displacement control structure for a vehicle according to claim 1, wherein the pedal displacement control structure is for a vehicle.

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