JP2004103030A - Vehicular pedal displacement control structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control displacement of the pad surface of a vehicular pedal when external force not less than a predetermined value acts from the front side of the vehicle. <P>SOLUTION: A brake pedal 10 is swingingly supported by a pedal bracket 26. The front end side of the pedal bracket 26 is fixed to a dash panel 16, and the rear end side thereof is detachably attached to a slide plate 50 fixed to an instrument panel reinforcement 50. The slide plate 50 is equipped with an inclined surface 50A inclined toward nearly the rear side of the vehicle and nearly the lower side of the vehicle, and the rear side of the pedal bracket 26 after detachment is rotatively displaced toward nearly the front side of the vehicle by sliding on the inclined surface 50A. Thereby, a pedal pad 58 of the brake pedal 10 supported to the pedal bracket 26 is rotatively displaced toward nearly the front side of the vehicle as well. <P>COPYRIGHT: (C)2004,JPO

Description

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

Conventionally, various countermeasures have been taken as a countermeasure when an external force greater than a predetermined value acts from the front of the vehicle. As an example of this kind of countermeasure, there is a configuration disclosed in Patent Document 1 below.

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

ニ ー Further, below the tilt bracket 408, a knee protector 412 having a substantially arc shape and being elastically deformable is provided. 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 equal to or more than the predetermined value acts from the front of the vehicle, the occupant attempts to inertially move toward the front of the vehicle, and accordingly, the leg of the occupant inertially moves in the same direction while bending from the knee as a starting point. try to. Therefore, if the knee protector 412 is not provided, the occupant's knee may contact the tilt bracket 408. However, if knee protector 412 is arranged below tilt bracket 408 as described above, the knee of the occupant will only contact knee protector 412.

Such a configuration in which the knee protector 412 is provided is considered to be a significant measure as a countermeasure when an external force equal to or more than a predetermined value acts from the front of the vehicle. It is possible to approach from the viewpoint, and it is important from the viewpoint of multiple protection that the countermeasures in relation to the occupant's legs be made multifaceted.

As a result of repeated experiments conceived from such a viewpoint, the inventors of the present invention focused on deformation and displacement behavior of a body panel and the like when an external force equal to or more than a predetermined value acts from the front of the vehicle. It has been concluded that controlling the displacement of the pedal is also a very effective measure.
Japanese Utility Model Laid-Open No. 1-73364

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

In the vehicle pedal displacement control structure according to the first aspect of the present invention, the front end side is coupled to the first vehicle body side component member which is displaced substantially toward the vehicle rear side when an external force of a predetermined value or more acts on the vehicle front part. A pedal bracket having a rear end coupled to a second vehicle body-side component member that is disposed substantially rearward of the first vehicle-side component member and that is hardly displaced substantially rearward of the vehicle even when the external force is applied; A suspension-type vehicle pedal in which a rotation 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. Disengagement means for disengaging the connected state and disengaging the rear end side of the pedal bracket from the second vehicle body side component substantially to the vehicle rear side, and the rear end side of the detached pedal bracket to substantially the vehicle rear side and substantially below the vehicle Guide means for displacing to the side It is characterized by having a.

According to a second aspect of the present invention, the vehicle front pedal displacement control structure has a front end side coupled to a first vehicle body side component member that is displaced substantially rearward when an external force equal to or more than a predetermined value acts on the vehicle front part. A pedal bracket having a rear end coupled to a second vehicle body-side component member that is disposed substantially rearward of the first vehicle-side component member and that is hardly displaced substantially rearward of the vehicle even when the external force is applied; A suspension-type vehicle pedal in which a rotation 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 connected state and releasing the rear end side of the pedal bracket from the second vehicle body-side component, and guiding the rear end side of the released pedal bracket to be substantially rearward and substantially downward of the vehicle. Means; and a pedal The bracket is viewed from the side when a compressive load substantially in the vehicle front-rear direction is applied by a substantially rearward pressing force received from the first vehicle body side component member and a substantially forward vehicle rotational force received from the guide means. Buckling in the shape of the letter "H".

According to a third aspect of the present invention, there is provided a vehicle pedal displacement control structure according to the first or second aspect, wherein the guide means has an inclined surface that is inclined substantially rearward and substantially downward of the vehicle. There is a feature.

According to the first aspect of the present invention, when an external force equal to or greater than a predetermined value acts on the front portion of the vehicle, the first vehicle body-side component is displaced substantially toward the rear 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 by the detaching means. It is released. Thereby, the rear end side of the pedal bracket is detached from the second vehicle body side component to the substantially vehicle rear side.

After disengagement, the rear end side of the pedal bracket is displaced substantially downward by the guide means. Therefore, when the pedal bracket is viewed from the side, the pedal bracket is rotationally displaced substantially toward the front of the vehicle while being displaced substantially toward the rear of the vehicle. Focusing on the load acting on the pedal bracket in this process, a pressing force substantially toward the rear of the vehicle acts from the first vehicle-side component member, and a rotational force substantially toward the front of the vehicle acts from the guiding means. When a compressive load substantially acts on the pedal bracket in the front-rear direction of the vehicle, a rotational displacement is generated on the rear end side of the pedal bracket substantially toward the front of the vehicle. As a result, the tread surface of the vehicle pedal supported by the pedal bracket is displaced substantially toward the front of the vehicle.

According to the second aspect of the present invention, when an external force equal to or greater than a predetermined value acts on the front portion of the vehicle, the first vehicle body-side component is displaced substantially toward the rear 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 by the detaching means. It is released.

Therefore, the rear end side of the pedal bracket is displaced substantially downward by the guide means. Therefore, when the pedal bracket is viewed from the side, the pedal bracket is rotationally displaced substantially toward the front of the vehicle while being displaced substantially toward the rear of the vehicle. Focusing on the load acting on the pedal bracket in this process, a pressing force substantially toward the rear of the vehicle acts from the first vehicle-side component member, and a rotational force substantially toward the front of the vehicle acts from the guiding means. When a compressive load acts on the pedal bracket substantially in the front-rear direction of the vehicle, the pedal bracket buckles in a substantially U-shape in side view, whereby the rear end side of the pedal bracket is rotationally displaced substantially forward of the vehicle. As a result, the tread surface of the vehicle pedal supported by the pedal bracket is displaced substantially toward the front of the vehicle.

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

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 equal to or more than a predetermined value acts from the front of the vehicle. Have.

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

FIG. 1 schematically shows an assembled state of a peripheral structure of a suspension type brake pedal 10, and FIG. 2 shows the state of the brake pedal 10 when an external force of a predetermined value or more acts 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 disposed substantially vertically at a position separating the engine room 12 and the vehicle interior space 14. An 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) which 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, a brake booster 20 that functions as a pedaling force increasing unit for increasing the pedaling force of the occupant applied to the brake pedal 10, and the pressure increased by the brake booster 20 is converted into a hydraulic pressure. A master cylinder 22 for converting hydraulic pressure for conversion and a reservoir tank (not shown) for storing and replenishing brake fluid following a change in volume of the hydraulic system are integrally provided.

On the other hand, on the rear side of the dash panel 16, a pedal bracket 26 for swingably supporting the brake pedal 10 is provided. The pedal bracket 26 includes a base plate portion 28 forming a mounting seat surface for the dash panel 16, a pair of side plate portions 30 extending substantially parallel to the vehicle rear side from the base plate portion 28, and side plate portions facing each other. And a top plate portion (not shown) connecting the upper edge side of the upper portion 30. Therefore, the pedal bracket 26 as a whole is formed in a U-shaped cross section, which is substantially long in the front-rear direction of the vehicle and has an open bottom surface. An opening 34 for reducing rigidity in the vehicle longitudinal direction is formed at a predetermined position on the front end side of each side plate portion 30, and rigidity in the vehicle longitudinal direction is partially increased on the upper edge side. Is formed.円 筒 At the four corners of the front surface of the base plate portion 28 of the pedal bracket 26, bottomed cylindrical collars 80, 82 are fixed (these collars 80, 82 will be described later in detail). With the collars 80 and 82 abutting against the dash panel 16, the mounting bolt 84 is inserted into the base plate 28 from the base plate 28 side, and a nut 86 is screwed into the mounting bolt 84 from the dash panel 16 side. Thereby, it is fixed to the dash panel 16. As a result, the front end side (that is, the base plate portion 28) of the pedal bracket 26 has its upper portion (that is, the portion where the pair of collars 80 arranged on the upper stage is disposed) and its lower portion (that is, the pair of collars 80 arranged on the lower stage). (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 overlapped state. As shown in FIG. 3, the top wall portion 44A of the slide bracket 44 has a narrow portion 46A having a narrow opening width and a wide portion 46B communicating with the narrow portion 46A and having a wide opening width. Is formed. Further, immediately above the slide bracket 44, a front end portion of a slide plate 50 that is arranged so as to protrude substantially from the instrument panel reinforcement 48 toward the vehicle front side is arranged. The instrument panel reinforcement 48 is a high-strength member arranged with the vehicle width direction as a longitudinal direction, and the slide plate 50 is also set to a predetermined high strength. Then, the fixing bolt 52 is inserted through the narrow portion 46A of the slit 46 and the front end of the slide plate 50 from the back side of the top wall portion 44A of the slide bracket 44 and screwed with the nut 54, so that the pedal bracket 26 The rear end side is connected to the slide plate 50.

Further, the opening width of the narrow portion 46A of the slit 46 is set slightly larger than the shaft diameter of the fixing bolt 52 and smaller than the head diameter, and the opening width of the wide portion 46B is set to the head diameter. It is set larger than. Therefore, when the fixing bolt 52 is located at the narrow portion 46A, which is the mounting position, the rear end side (slide bracket 44) of the pedal bracket 26 remains connected to the slide plate 50. When the fixing bolt 52 is relatively positioned at the wide portion 46 </ b> B by displacing the pedal bracket 26 substantially toward the vehicle rear side, the rear end side of the pedal bracket 26 is detached from the slide plate 50. I have. Further, the lower end surface of the slide plate 50 is inclined at a predetermined angle toward the lower side of the vehicle, and the inclined surface 50A is used as a sliding guide surface of the pedal bracket 26 with the top wall portion 44A of the slide bracket 44.

The 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 a lower end portion of the pedal support portion 56 and to which a pedaling force of an occupant is applied. ing. A return spring (not shown) is locked to the pedal support portion 56 of the brake pedal 10, and the return spring always urges the brake pedal 10 in a direction to return to the initial position.

A rotation shaft 60 is provided at the upper end of the pedal support 56 of the brake pedal 10, and the rotation shaft 60 is supported by the pair of side plates 30 of the pedal bracket 26. Note that when briefly touching an example of the configuration of the rotating shaft portion 60, a substantially cylindrical pedal boss is inserted into a through hole formed at the upper end of the pedal support portion 56, and cylindrical pedal bosses are provided at both ends of the pedal boss. After the bush is fitted into each bush and the cylindrical collar is further inserted into both bushes, a mounting bolt 62 is inserted from outside the one side plate portion 30 and a washer (not shown) from the outside of the other side plate portion 30. The rotary shaft 60 is formed by screwing the nut 64 through the nut.

先端 Furthermore, a tip end of a push rod (operating rod) 66 projecting from the brake booster 20 and penetrating through 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 portion 56 is disposed in an inserted state. A clevis pin 70 penetrates both sides of the clevis 68 and the pedal support portion 56, and a retaining ring, a β pin, etc. The push rod 66 and the pedal support portion 56 are connected to each other so as to be relatively rotatable by being fitted and stopped.

Here, the configuration of the above-mentioned collars 80 and 82 is as follows. As shown in FIGS. 4A and 4B, the collar 82 disposed on the lower side includes a collar body 88 formed in a bottomed cylindrical shape including a bottom wall 88A and a peripheral wall 88B, and the collar 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 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 pre-assembled. In this state, the collar 82 is fixed to the base plate portion 28 by fixing the collar attachment portion 90 to the lower portion of the front surface of the base plate portion 28 by welding or the like. In the present 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 28. You may do so. In this case, a bolt insertion hole may be formed at the mounting position of the collar 80 on the base plate portion 28. Further, in the present embodiment, the nut 86 is screwed from the dash panel 16 side in the relation that the head 84A of the mounting bolt 84 is welded in advance to the bottom wall 88A of the collar body 88. When adopting a configuration in which the nut 86 is inserted into the collar 80, the nut 86 may be a weld nut. Note that the above configuration is the same for the collar 80 disposed above 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 collar body 88 of the collar 82 arranged on the lower side described above. The slit 92 has a narrow slit width, and its longitudinal direction is set in a direction along the axial direction of the collar 82. Thereby, the rigidity of the collar 82 disposed on the lower side in the axial direction (substantially the front-rear direction of the vehicle) is intentionally reduced. As a result, in the present embodiment, the rigidity in the axial direction of the collar 82 arranged in the lower stage is set to be relatively lower than the rigidity in the axial direction of the collar 80 arranged in the upper stage.

In addition, 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 earlier than the collar 82 due to an external force substantially from the front side of the vehicle. . In addition, since the tensile force mainly acts on the collars 80 and 82 of the present embodiment during the normal operation of the brake pedal 10, even if the buckling load for compression is reduced as in the collar 82 of the present embodiment, the normal There is no effect during operation.

In the present embodiment, the above-mentioned collars 80 and 82 are made of metal having a predetermined hardness in consideration of welding with other parts. However, the present invention is not limited to this, 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. In addition, since the above-mentioned collars 80 and 82 generally have various irregularities on the surface of the dash panel 16 instead of being flat, the attachment of the pedal bracket 26 to the dash panel 16 is not hindered by the irregularities ( It is a component 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 between the panel 16 and the pedal bracket 26 is improved.)

Next, the operation and effects of the present embodiment will be described.

ブ レ ー キ 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 substantially around the rotation shaft 60 toward the front of the vehicle, and the push rod 66 is pressed substantially toward the front of the vehicle. Is done. As a result, the pedaling force of the occupant applied to the pedal pad 58 is transmitted to the brake booster 20 via the push rod 66 and is increased, and then converted into hydraulic pressure by the master cylinder 22.

On the other hand, when an external force equal to or more than a predetermined value 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 substantially toward the rear of the vehicle (and substantially toward 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 be attached to the slide plate 50 are both high-strength members, the pedal bracket 26 includes a substantially vehicle associated with the rearward displacement of the dash panel 16. While the load on the rear side is input, the reaction force at that time is input from the instrument panel reinforcement 48 as a load substantially on the front side of the vehicle. 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 low rigidity substantially in the vehicle longitudinal direction. For these reasons, the pedal bracket 26 buckles substantially in the vehicle longitudinal direction. Further, at this time, since the beads 36 are formed on the upper edges of the pair of side plates 30 of the pedal bracket 26, the rigidity of the upper edges of the side plates 30 in the vehicle longitudinal direction is partially high. Has become. Accordingly, the pedal bracket 26 as a whole buckles in a substantially “H” shape in side view.

Further, at this time, since a load substantially toward the vehicle rear side is input to the slide bracket 44 fixed to the rear end side of the pedal bracket 26, the slide bracket 44 is moved substantially toward the vehicle rear side with respect to the slide guide plate 50. Sliding slightly to. Therefore, the fixing bolt 52 that has been located at the narrow portion 46A of the slit 46 is relatively located at the wide portion 46B of the slit 46. Accordingly, the head of the fixing bolt 52 comes off from the wide portion 46B of the slit 46, and the slide bracket 44 is separated from the slide plate 50.

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

The above-described process can be summarized by focusing on the load acting on the pedal bracket 26. First, the pressing force substantially toward the vehicle rear side due to the rearward displacement of the dash panel 16 and the slide guide plate 50, and thus the input from the instrument panel reinforcement 48, Due to the reaction force toward the front of the vehicle, a compressive load acts on the pedal bracket 26 substantially in the vehicle front-rear direction. Further, a compressive load is applied to the pedal bracket 26 substantially in the front-rear direction of the vehicle due to the rotational force generated when the pedal bracket 26 is rotationally displaced substantially toward the front of the vehicle by being guided by the slide guide plate 50. Therefore, a large (doubled) substantially compressive load acts on the pedal bracket 26 in the vehicle longitudinal direction. In addition, when the deformation mode of the pedal bracket 26 is taken into consideration, the compressive load acts more greatly on the lower collar 82 serving as a connecting portion to the dash panel 16 at the lower front end side of the pedal bracket 26.

Here, in the present embodiment, the collar 80 on the upper stage, which is a connection portion to the dash panel 16 at the upper front end side of the pedal bracket 26, is a conventionally used cylindrical metal collar having a predetermined hardness. A plurality of slits 92 are formed in the lower-stage collar 82, which is a connection portion to the dash panel 16 at the lower front end side of the pedal bracket 26, to reduce rigidity in the axial direction (substantially the vehicle front-rear direction). Since the above-mentioned collar is used, when the above-described compressive load substantially in the vehicle longitudinal direction acts intensively on the lower front end side of the pedal bracket 26, the upper collar 80 is hardly buckled in the axial direction. However, the lower collar 82 is buckled and deformed in the axial direction. That is, the amount of compressive displacement at the lower front end (collar 82) is greater than the amount of compressive displacement at the upper front end (collar 80) of the pedal bracket 26. For this reason, the pedal bracket 26 undergoes a rotational displacement substantially toward the front of the vehicle due to the above-described configuration (a configuration in which the rear end side of the pedal bracket 26 is slid substantially downward along the slide guide plate 50). In addition, a rotational displacement substantially toward the front of the vehicle occurs in accordance with the difference between the amount of compression displacement of the collar 80 and the amount of compression displacement of the collar 82. Therefore, the pedal pad 58 of the brake pedal 10 in which the rotation shaft portion 60 is supported by the pedal bracket 26 is largely displaced substantially toward the front of the vehicle.

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

As described above, in the present embodiment, when an external force equal to or more than a predetermined value acts from the front of the vehicle, the pedal bracket 26 is buckled substantially in the vehicle front-rear direction and is rotationally displaced substantially toward the front of the vehicle. Since the axial rigidity of the front lower collar 82 in the base plate portion 28 is intentionally set lower than the axial rigidity of the upper front collar 80, the pedal bracket can be buckled by the external force when the collar 82 is applied. It is possible to increase the amount of rotational displacement of the pedal pad 26 substantially toward the front of the vehicle, thereby effectively displacing the pedal pad 58 substantially toward the front of the vehicle. 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 substantially toward the front of the vehicle when an external force equal to or more than a predetermined value acts from the front of the vehicle. Become. As a result, the knee of the leg due to the inertial movement of the occupant when the external force equal to or more than the predetermined value acts from the front of the vehicle can be suppressed, and the knee of the occupant's leg can be moved away from the steering column. .

Furthermore, in the present embodiment, by using the existing collars 80 and 82, the compression displacement amount at the lower front end side is larger than the compression displacement amount at the upper front end side of the pedal bracket 26. The structure can be simplified without increasing the score.

Hereinafter, some other embodiments will be described with reference to FIGS. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

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

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

Further, the embodiment shown in FIGS. 6A and 6B is characterized in that a bent portion 104 having a U-shaped cross section is integrally formed on the lower side of both sides of the base plate portion 28 of the pedal bracket 26. There is. In addition, the bent part 104 is formed by punching out the developed shape at the same time when the base plate part 28 is punched out by a press, and then performing a bending process. The lower end of the base plate portion 28 is connected to the dash panel 16 by fixing the front end of the bent portion 104 with the mounting bolt 84 and the nut 86. Although the mounting bolt 84 is welded to the bent portion 104 in advance, if it is to be retrofitted, a predetermined bolt insertion hole may be formed in the base plate portion 28.

In addition, although not shown in the drawing, in the case of adopting the above configuration, the axial length of the collar 80 arranged on the upper front surface of the base plate portion 28 should be set to match the bending width of the bending portion 104. Thus, the state where the pedal bracket 26 is fixed to the dash panel 16 is stabilized.

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

7A and 7B are characterized in that a case-shaped base plate case 106 is used instead of the plate-shaped base plate portion 28. More specifically, the base plate case 106 is formed integrally with a case body 108 whose depth is set so that the amount of compressive displacement at the lower front end side of the pedal bracket 26 is a predetermined amount, and at the open end of the case body 108. And a cover 110 formed. The lid 110 is a part corresponding to the base plate 26 in the above-described embodiment.

The base plate case 106 is connected to the dash panel 16 by fixing the bottom wall 88A of the case main body 108 to the dash panel 16 with the mounting bolt 84 and the nut 86. Folded flanges 110A are integrally formed at lower portions on both sides 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. Have been. Here, the predetermined load is such a level that the dash panel 16 is not sheared by a load applied when the normal brake pedal 10 is operated, but is sheared when a load such that the dash panel 16 is displaced rearward substantially toward the rear of the vehicle is applied. Means load.

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

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

In the above-described embodiment, the present invention is applied to a suspended main brake pedal, but the present invention is not limited to this, and may be applied to a suspended clutch pedal or a depressed parking brake pedal. It is also applicable.

Further, 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 by utilizing the shape of the slit 46. Is applicable as long as the rear end side of the pedal bracket 26 is separated from the slide plate 50 when the load is input. For example, various configurations can be applied, such as joining the slide bracket 44 and the slide plate 50 with a shear pin that is sheared by a load equal to or greater than a predetermined value.

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 equal to or greater than a predetermined value acts on the structure shown in FIG. 1 from the front of the vehicle. FIG. 2 is an enlarged perspective view showing a detachment configuration of a slide bracket and a slide plate shown in FIG. 1. FIG. 2A is an enlarged cross-sectional view of a peripheral portion including a lower collar shown in FIG. 1, and FIG. 2B is a rear view of the collar peripheral portion. (A) is an enlarged sectional view showing a peripheral portion including a collar having a bellows portion according to another embodiment, and (B) is a rear view of the collar peripheral portion. (A) is an enlarged sectional view showing a base plate portion provided with a bent portion according to another embodiment, and (B) is a rear view of the bent portion. (A) is a side view showing a base plate case of another embodiment with a part cut away and enlarged, and (B) is a rear view of the base plate case. FIG. 8 is a cross-sectional view illustrating a state where a lid of the base plate case illustrated in FIG. 7 is pressed substantially toward the front side of the vehicle. It is a perspective view which shows the conventional structure.

Explanation of reference numerals

10. Brake pedal (vehicle pedal)
16 Dash panel (first body side component)
26 Pedal bracket 44 Slide bracket (pedal bracket)
46 slit (separation means)
48 Instrument panel reinforcement (2nd vehicle body side component)
50 Slide plate (second body-side component)
50A slope (guide means)
58 Pedal Pad (Tread)
60 Rotating shaft

Claims (3)

The front end side is coupled to the first vehicle body-side component member that is displaced substantially to the vehicle rear side when an external force equal to or more than a predetermined value acts on the vehicle front portion, and is closer to the vehicle rear side than the first vehicle body-side component member. A pedal bracket having a rear end coupled to a second vehicle-body-side component member that is disposed and hardly displaces substantially toward the rear of the vehicle even when the external force is applied;
A suspension type vehicle pedal in which a rotation shaft portion serving as a swing center is supported by the pedal bracket,
When the external force is applied, the rear end side of the pedal bracket and the second vehicle body-side component are released from the coupled state, and the rear end side of the pedal bracket is disengaged from the second vehicle body-side component to substantially the vehicle rear side. Withdrawal means,
Guide means for displacing the rear end side of the pedal bracket after disengagement substantially toward the rear side of the vehicle and substantially below the vehicle,
A pedal displacement control structure for a vehicle, comprising: The front end side is coupled to the first vehicle body-side component member that is displaced substantially to the vehicle rear side when an external force equal to or more than a predetermined value acts on the vehicle front portion, and is closer to the vehicle rear side than the first vehicle body-side component member. A pedal bracket having a rear end coupled to a second vehicle-body-side component member that is disposed and hardly displaces substantially toward the rear of the vehicle even when the external force is applied;
A suspension type vehicle pedal in which a rotation shaft portion serving as a swing center is supported by the pedal bracket,
When the external force is applied, release means for releasing the connection state between the rear end side of the pedal bracket and the second vehicle body-side component member and releasing the rear end side of the pedal bracket from the second vehicle body-side component member,
Guide means for displacing the rear end side of the pedal bracket after disengagement substantially toward the rear side of the vehicle and substantially below the vehicle,
Has,
The pedal bracket has a side surface when a compressive load substantially in the vehicle front-rear direction is applied by a substantially rearward pressing force received from the first vehicle body side component member and a substantially forward vehicle rotational force received from the guide means. Buckling in the shape of a letter "H"
A pedal displacement control structure for a vehicle, comprising: The guide means is a slope inclined substantially toward the rear of the vehicle and substantially below the vehicle.
The vehicle pedal displacement control structure according to claim 1 or 2, wherein:

Images