WO2016157945A1

WO2016157945A1 - Device for preventing rearward movement of vehicle pedal assembly

Info

Publication number: WO2016157945A1
Application number: PCT/JP2016/051331
Authority: WO
Inventors: 藤原　昇
Original assignee: 豊田鉄工株式会社
Priority date: 2015-03-30
Filing date: 2016-01-18
Publication date: 2016-10-06

Abstract

A device for preventing rearward movement of a vehicle pedal assembly in which a sub-bracket is rotatably provided to a pedal bracket, wherein the sub-bracket is adequately held at a predetermined orientation under normal circumstance, whereas in a collision, the held state of the sub-bracket is adequately released. One end part (16a) of the sub-bracket (16) rotatably linked to the pedal bracket (14) is detachably supported by a support member (22) provided to an instrument panel reinforcement (20); therefore, the support structure resulting from the support member (22) has a high degree of freedom. In the present embodiment, the one end part (16a) is detachably linked to the support member (22) by a fastening device (46) and a slit (48). Accordingly, it is possible to hold the sub-bracket (16) between the support member (22) and the pedal bracket (14) under normal circumstances so as to make it possible to obtain adequate performance in regard to supporting an operation pedal (30), and cause the one end part (16a) to adequately detach from the support member (22) with a rearward displacement of a dash panel (12).

Description

Retreat prevention device for vehicle pedal device

The present invention relates to a reverse preventing device for a vehicular pedal device that suppresses the stepped portion of an operation pedal from moving backward toward the driver's seat when the dash panel is moved backward toward the driver's seat.

(A) a pedal bracket disposed on the dash panel; and (b) supported directly or indirectly by the pedal bracket so as to be rotatable about the first axis, and mechanically attached to a predetermined output member. And (c) when the dash panel is displaced backward to the driver's seat side. There is known a reverse prevention device that suppresses the stepped portion of the operation pedal from moving backward toward the driver's seat. The device described in Patent Document 1 is an example thereof, and (d) is disposed on a vehicle body side member closer to the driver's seat than the dash panel, and supports a tip end portion (an end portion on the vehicle rear side) of the pedal bracket. And a support member that allows the distal end of the pedal bracket to be detached when the pedal bracket is retracted in accordance with the backward displacement of the dash panel, and (e) the pedal member disposed on the vehicle body side member, A guide that guides the tip portion detached from the support member to be displaced downward in the vehicle when the bracket is retracted along with the backward displacement of the dash panel, and (f) the tip portion The pedal bracket is bent and deformed so as to be displaced to the vehicle lower side, so that the retraction of the stepped portion of the operation pedal disposed on the pedal bracket is mechanically suppressed. It has become the jar.

In Patent Document 2, (d) the pedal bracket is connected to the pedal bracket so as to be rotatable around a second axis parallel to the first axis, and one end portion extends from the pedal bracket to the vehicle rear side. (E) disposed on the vehicle body side member closer to the driver's seat than the dash panel, and when the pedal bracket is retracted in accordance with the backward displacement of the dash panel, And (f) a guide that guides the one end to be displaced toward the vehicle lower side, and (f) the sub bracket is revolved around the second axis so that the one end is displaced toward the vehicle lower side. As a result, the backward movement of the stepped portion of the operation pedal disposed on the sub bracket is mechanically suppressed.

Japanese Patent Laid-Open No. 10-59146 JP 11-139346 A

However, since the reverse prevention device described in Patent Document 1 suppresses the backward movement of the stepped portion of the operation pedal based on the bending deformation of the pedal bracket, the deformation mode of the pedal bracket is irregular and the effect of suppressing the backward movement of the stepped portion varies. There was a problem that it was easy. It is difficult to always deform the pedal bracket in a certain deformation manner. On the other hand, in the reverse prevention device described in Patent Document 2, since the sub bracket is rotated around the second axis, a certain retraction suppression effect can be expected based on the rotation, but the sub bracket is caulked. Since the pedal bracket is held in a fixed posture by the projection and protrusion, the holding strength of the sub bracket is affected by the strength and rigidity of the pedal bracket, ensuring a holding strength that can properly support the operation pedal However, it is difficult to properly release the holding state with the backward displacement of the dash panel during a collision or the like. That is, in the case of the joint fastening structure as in Patent Document 2, since it is necessary to achieve both the normal stepping operation and the separation action at the time of collision, the design considering the friction, axial force, notch shape, etc. of the fastening portion is severe. Therefore, it is difficult to reliably remove the sub bracket in the event of a collision and to obtain a reverse restraining action. Further, if the pedal bracket is deformed at the time of a collision, there is a possibility that the sub bracket cannot be detached due to the twisting of the joint portion.

The present invention has been made against the background of the above circumstances, and an object of the present invention is to prevent the reverse of a vehicle pedal device in which a sub bracket is disposed on a pedal bracket so as to be rotatable around a second axis. In the apparatus, normally, the sub bracket can be appropriately held in a predetermined posture, and the holding state of the sub bracket is appropriately released at the time of a collision or the like.

In order to achieve such an object, the first invention includes (a) a pedal bracket disposed on a dash panel, and (b) a direct or indirect rotation by the pedal bracket so as to be rotatable about a first axis. A vehicle pedal device having an operation pedal that is supported and mechanically connected to a predetermined output member, and a stepped portion provided at a lower end of the pedal is operated to the front side of the vehicle; ) In a reverse prevention device that suppresses the stepped portion of the operation pedal from moving backward toward the driver's seat when the dash panel is displaced backward toward the driver's seat, (d) parallel to the first axis to the pedal bracket. A sub-bracket that is pivotally connected around the second axis and has one end extending from the pedal bracket to the vehicle rear side, and (e) driving more than the dash panel. The one end of the sub bracket is supported when the sub bracket is retracted along with the backward displacement of the dash panel. And (f) the sub bracket is arranged around the second axis so that the one end thereof is displaced downward in the vehicle as the one end is detached from the support member. When the output member and the operation pedal are mechanically connected, the stepped portion of the operation pedal is mechanically suppressed from moving backward to the driver's seat side. And

Here, the vehicle body side member closer to the driver's seat than the dash panel is an instrument panel reinforcement (a reinforcement member of the instrument panel) or a cowl bracket. Generally, the driver's seat when a heavy load is input from the front of the vehicle such as a collision. Therefore, the present invention is a technology that suppresses the backward movement of the stepped portion of the operation pedal on the premise of the difference in the backward displacement amount. Further, the retracting rotation of the sub bracket includes a case where one end portion is displaced to the vehicle lower side due to a natural drop due to gravity or an elastic body.

According to a second aspect of the present invention, in the reverse prevention device for a vehicle pedal device according to the first aspect, the vehicle body side member is detached from the support member when the sub bracket is moved backward along with the backward displacement of the dash panel. A guide is provided for guiding the one end to be displaced downward in the vehicle.

According to a third aspect of the present invention, there is provided the vehicular pedal apparatus according to the first or second aspect of the present invention, wherein (a) the operation pedal is rotatably disposed on the sub bracket, and (b) the pedal. An intermediate lever connected to the output member and connected to the operation pedal via a connection link is disposed on the bracket so as to be rotatable around a third axis parallel to the first axis. (C) When the sub-bracket is retracted and rotated, the operation pedal is pulled by the intermediate lever, and the step portion is moved forward of the vehicle.

According to a fourth aspect of the present invention, in the vehicle pedal device reverse preventing apparatus according to the third aspect, the third axis is set concentrically with the second axis, and the intermediate lever and the sub bracket are a common support shaft. It is characterized by being supported so as to be rotatable.

According to a fifth aspect of the present invention, in the vehicular pedal apparatus according to the first or second aspect of the invention, (a) the operation pedal is rotatably disposed on the pedal bracket, and (b) the sub An intermediate lever connected to the output member and connected to the operation pedal via a connection link is disposed on the bracket so as to be rotatable around a third axis parallel to the first axis. (C) When the sub-bracket is retracted and rotated, the operation pedal is pulled by the intermediate lever, and the step portion is moved forward of the vehicle.

According to a sixth aspect of the present invention, in the vehicular pedal apparatus according to the fifth aspect of the present invention, the first axis is set concentrically with the second axis, and the operation pedal and the sub bracket are a common support shaft. It is characterized by being supported so as to be rotatable.

According to a seventh aspect of the invention, in the vehicular pedal device reverse preventing apparatus according to the first or second aspect of the invention, (a) the operation pedal rotates about the first axis above the second axis and on the vehicle upper side. The output member is directly connected to an intermediate position between the first shaft center and the step portion, while (b) the operation pedal is movably disposed on the sub bracket. c) When the sub bracket is retracted and rotated, the operation pedal is pulled by the output member, and the step portion is moved forward of the vehicle.

According to an eighth aspect of the present invention, in the vehicular pedal apparatus according to the first or second aspect of the invention, (a) the operation pedal is rotatably disposed on the sub bracket, while (b) the sub An intermediate lever connected to the output member and connected to the operation pedal via a connection link is disposed on the bracket so as to be rotatable around a third axis parallel to the first axis. (C) When the sub-bracket is retracted and rotated, the operation pedal is pulled by the intermediate lever, and the step portion is moved forward of the vehicle.

According to a ninth aspect of the present invention, in the vehicular pedal apparatus according to the eighth aspect of the present invention, (a) the sub bracket includes a second end portion that extends from the second shaft center to the front side of the vehicle opposite to the first end portion. And (b) the operation pedal and the intermediate lever are rotatably disposed at positions opposite to each other across the second axis in the vehicle front-rear direction of the sub bracket. And

In such a reverse preventing device for a pedal device for a vehicle, one end of the sub bracket that is pivotally connected to the pedal bracket about the second axis is detached by a support member disposed on the vehicle body side member. Because it is supported as much as possible, the support structure by the support member has a high degree of freedom, and while the sub bracket is appropriately positioned between the support member and the pedal bracket, one end is supported as the dash panel moves backward. It is easily possible to properly disengage from the member. Even if the pedal bracket is deformed at the time of a collision, the one end of the sub bracket can be appropriately detached from the support member without being affected by the deformation. Accordingly, in combination with the rotation of the sub bracket around the second axis, the effect of suppressing the backward movement of the stepped portion of the operation pedal can be appropriately obtained.

In the second invention, since the one end of the sub bracket detached from the support member is forcibly displaced to the vehicle lower side by the guide provided on the vehicle body side member, the sub bracket is mechanically moved along with the backward displacement of the dash panel. Thus, the retraction and rotation of the operation pedal can be reliably performed, and the effect of suppressing the backward movement of the stepped portion of the operation pedal can be appropriately obtained.

The third invention is a case where the operation pedal is rotatably disposed on the sub bracket and is connected to the output member via an intermediate lever disposed on the petal bracket. In this case, the operating pedal is pulled by the intermediate lever and the step part is moved to the front side of the vehicle, and the effect of suppressing the backward movement of the step part is appropriately obtained.

In the fourth aspect of the invention, the third axis that is the rotation axis of the intermediate lever is set concentrically with the second axis, and the intermediate lever and the sub bracket are rotatably supported by a common support shaft. Therefore, the number of parts and the cost are reduced.

According to a fifth aspect of the present invention, when the operation pedal is rotatably disposed on the pedal bracket and is connected to the output member via an intermediate lever disposed on the sub bracket, the sub bracket is retracted and rotated. In this case, the operating pedal is pulled by the intermediate lever and the step part is moved to the front side of the vehicle, and the effect of suppressing the backward movement of the step part is appropriately obtained. Further, since the intermediate lever is displaced to the vehicle lower side along with the retracting rotation of the sub bracket, the intermediate lever moves to the vehicle rear side as it is and the support member, the vehicle body side member on which the support member is disposed, etc. The effect of suppressing the retreat of the stepped portion due to the deformation of the intermediate lever itself or the retraction of the steering device or the like due to the deformation of the vehicle body side member or the like is suppressed.

In the sixth aspect of the invention, since the first axis that is the rotation axis of the operation pedal is set concentrically with the second axis, the operation pedal and the sub bracket can be rotated using a common support shaft. The number of parts and the cost can be reduced.

In the seventh invention, the operation pedal is disposed on the sub bracket so as to be rotatable around the first axis above the second axis and the output member is directly connected to the operation pedal. Thus, when the sub bracket is retracted and rotated, the first axis that is the rotation axis of the operation pedal is displaced toward the vehicle rear side or the vehicle lower side, whereby the operation pedal is pulled by the output member. As a result, the step is moved to the front side of the vehicle, and the effect of suppressing the backward movement of the step is obtained appropriately.

According to an eighth aspect of the present invention, when the operation pedal and the intermediate lever are both rotatably disposed on the sub bracket, the operation pedal is pulled by the intermediate lever when the sub bracket is retracted and rotated, so that the step portion is By being moved forward of the vehicle, the effect of suppressing the backward movement of the tread is appropriately obtained. In the ninth aspect of the invention, since the operation pedal and the intermediate lever are disposed at portions opposite to each other across the second axis in the vehicle front-rear direction, the operation pedal and the intermediate lever are accompanied by the revolving rotation of the sub bracket. Is displaced in the reverse direction, and the amount of rotation of the operation pedal can be increased to more appropriately obtain the effect of suppressing the backward movement of the stepping portion.

1 is a left side view with a part cut away showing a schematic configuration of a brake pedal device to which the present invention is applied. FIG. 2 is an enlarged sectional view taken along the line II-II in FIG. It is a perspective view which shows independently the slide member provided in the sub bracket of the Example of FIG. In the embodiment of FIG. 1, it is a diagram for explaining the retraction suppression operation of the step portion of the operation pedal when the dash panel is displaced backward due to a collision. It is a figure explaining the other Example of this invention, and is a figure corresponding to FIG. It is a figure explaining another Example of this invention, and is a figure corresponding to FIG. It is a figure explaining another Example of this invention, and is a figure corresponding to FIG. It is a figure explaining another Example of this invention, and is a figure corresponding to FIG. It is a figure explaining another Example of this invention, and is a figure corresponding to FIG.

The present invention is suitably applied to a vehicle pedal device in which an output member is disposed so as to protrude from a dash panel into a vehicle compartment, such as a brake pedal device for a service brake in which an operating rod of a brake booster is connected as an output member. Is done. The present invention can also be applied to other vehicle pedals such as an accelerator pedal, a clutch pedal, and a parking brake pedal.

The dash panel is a partition wall that separates the vehicle compartment from the engine room, but the engine does not necessarily have to be accommodated in the engine room, and may be anything that constitutes the front wall of the vehicle compartment. For example, the operation pedal is disposed on the pedal bracket or the sub bracket so as to be rotatable about a first axis that is substantially horizontal and substantially parallel to the width direction of the vehicle. The operation pedal is connected to the output member through, for example, an intermediate lever, and it is desirable to connect the operation pedal and the intermediate lever through a connection link. However, the operation pedal and the intermediate lever are directly connected to each other through a long hole. It is also possible to connect. A plurality of intermediate levers may be interposed between the operation pedal and the output member.

The support member that detachably supports one end of the sub bracket includes, for example, a connecting member such as a rivet that breaks at a predetermined release load, a nut fastened so as to slip out from a slit or the like by a predetermined release load, and A fastening device such as a bolt is provided. The support member, for example, allows detachment when a load is applied that causes the one end of the sub bracket to move backward substantially horizontally toward the vehicle rear side, and the support state of the sub bracket is appropriate for loads in other directions. Configured to be maintained.

In the second invention, the one end of the sub bracket is forcibly displaced to the vehicle lower side by the guide, but when implementing other inventions, it can be displaced to the vehicle lower side by an elastic member such as a spring, It is only necessary to displace the vehicle under its own weight. The guide is suitably a flat inclined surface inclined obliquely downward, but may be a curved surface or the like, and is configured to displace one end portion of the sub bracket abutted on the guide to the vehicle lower side. However, a guide pin or the like can also be used as a guide.

In the fourth invention, the third axis is set concentrically with the second axis, and in the sixth invention, the first axis is set concentric with the second axis, and a common support shaft is used. In carrying out other inventions, it is possible to support each using separate support shafts, and it is also possible to set the first axis, the second axis, and the third axis at different positions. At least one of the operation pedal and the intermediate lever is pivotably disposed on the sub bracket. The first axis or the third axis, which is the pivot axis thereof, overlaps with the pedal bracket in a side view. It is desirable to set the part that does not become. That is, even when the pedal bracket is deformed at the time of a vehicle collision, it is possible to prevent the support shafts and the like disposed on the first shaft center and the third shaft center from interfering with the pedal bracket, so that the sub bracket is appropriately retracted and rotated. It is done.

In the eighth invention, the operation pedal and the intermediate lever are both rotatably disposed on the sub bracket. In the ninth invention, the operation pedal and the intermediate lever sandwich the second axis in the vehicle longitudinal direction. However, when the eighth aspect of the present invention is implemented, the operation pedal and the intermediate lever are both disposed on the vehicle rear side of the second axis or on the vehicle front side. You can do it. In the ninth aspect of the invention, the operation pedal may be rotatably connected to the front side of the vehicle with respect to the second axis, and the intermediate lever may be rotatably connected to the rear side of the vehicle with respect to the second axis. Conversely, the operation pedal may be rotatably connected to the vehicle rear side of the second axis, and the intermediate lever may be rotatably connected to the vehicle front side of the second axis.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, the drawings are appropriately simplified or modified for explanation, and the dimensional ratios, shapes, and the like of the respective parts are not necessarily drawn accurately.

FIG. 1 is a diagram for explaining a brake pedal device 10 for a service brake to which the present invention is applied. FIG. 1 is a left side view of the vehicle viewed from the left side, and FIG. It is an expanded sectional view of the II arrow part. The brake pedal device 10 corresponds to a vehicle pedal device, and a pedal bracket 14 is integrally fixed to a dash panel 12 that separates the engine room and the vehicle interior, and a sub bracket 16 is provided to the pedal bracket 14. The second support shaft 18 is disposed so as to be rotatable about the axis of the second support shaft 18 that is substantially horizontal and substantially parallel to the vehicle width direction. The axis of the second support shaft 18 is a second axis S2 that is the rotation axis of the sub bracket 16. The sub bracket 16 has a longitudinal shape, and its one end 16a extends obliquely upward on the rear side of the vehicle from the pedal bracket 14 and is connected to a support member 22 fixed to the instrument panel reinforcement 20. In general, it is held in the fixed assembly posture shown in FIG. Each of the pedal bracket 14 and the sub bracket 16 includes a pair of side plates that are parallel to each other. In this embodiment, the sub bracket 16 is overlaid so that the sub bracket 16 is in close contact with the outside of the pedal bracket 14. Further, before the one end portion 16a is connected to the support member 22, the sub bracket 16 is positioned by a relatively weak temporary fixing pin 24 such as aluminum so that the sub bracket 16 is held in the assembled posture. The instrument panel reinforcement 20 corresponds to a vehicle body side member closer to the driver's seat than the dash panel 12, and the dash panel 12 has a possibility of being displaced toward the rear side of the vehicle when a heavy load is input from the front of the vehicle such as a vehicle collision. Small compared to

At the intermediate position of the sub bracket 16, that is, the position between the second axis S2 and the one end portion 16a, and the portion not overlapping the pedal bracket 14 in the side view shown in FIG. The first support shaft 32 that is substantially parallel to the support shaft 18 is disposed so as to be rotatable about the axis. The axis of the first support shaft 32 is a first axis S1 that is the rotation axis of the operation pedal 30. The operation pedal 30 is rotatably supported at the upper end portion by the first support shaft 32 so that the step portion 34 provided at the lower end portion is stepped on the vehicle front side (left direction in FIG. 1). It has become. An intermediate lever 36 is disposed on the pedal bracket 14 so as to be rotatable about the second axis S2. The second axis S2 coincides with the third axis S3 that is the rotation axis of the intermediate lever 36, and the sub bracket 16 and the intermediate lever 36 are supported by the common second support shaft 18 so as to be relatively rotatable. Has been. The intermediate lever 36 is supported at the lower end portion so as to be rotatable about the second axis S 2 and extends upward. The intermediate lever 36 is connected to the operation pedal 30 via a connection link 38 at the upper and lower intermediate positions. An operating rod 40 of a brake booster is connected to the upper end portion of the intermediate lever 36 via a clevis 42, and mechanically connected to the second support shaft 18 via a connecting link 38 in conjunction with the depression of the operation pedal 30. Is rotated in the counterclockwise direction (output direction), thereby pressing the operating rod 40 toward the vehicle front side to generate a braking force. The operating rod 40 corresponds to an output member, and is disposed so as to protrude from the dash panel 12 into the vehicle interior.

The support member 22 includes a substantially horizontal flat support plate portion 22a, while one end portion 16a of the sub bracket 16 is bent substantially horizontally, and a slide member 44 is welded to the one end portion 16a. Are integrally fixed. The slide member 44 is jointly fastened to the support plate portion 22a by a fastening device 46 made of bolts and nuts while being in surface contact with the lower surface of the support plate portion 22a, whereby the sub bracket 16 is brought into the assembled posture. Positioned. As shown in FIG. 3 alone, the slide member 44 has a slit 48 formed in a flat plate portion that is brought into surface contact with the support plate portion 22 a, and the fastening device 46 is inserted through the slit 48. The slit 48 is provided substantially in parallel with the long-shaped sub bracket 16 and opens toward the front side of the vehicle. As shown in FIG. 4B, the dash panel 12 is substantially moved toward the rear side of the vehicle in the event of a vehicle collision. When the sub bracket 16 is displaced backward relative to the support member 22, which is displaced horizontally and is smaller than the dash panel 12, the slit 48 against the fastening force by the fastening device 46. The slide member 44 is slid and moved to the vehicle rear side so as to be pulled out to the vehicle rear side. Thereby, the connection state by the fastening device 46 is released, and the sub bracket 16 is detached from the support member 22 together with the slide member 44. The fastening force of the fastening device 46 is that the slide member 44 moves to the vehicle rear side and detaches from the support member 22 when a predetermined release load is applied to the sub bracket 16 substantially horizontally to the vehicle rear side. For other loads, the connection state, that is, the support state of the one end portion 16a of the sub bracket 16 is appropriately maintained, and the sub bracket 16 is determined to be held in the assembled posture. Thereby, the operation pedal 30 to be depressed is appropriately supported by the sub bracket 16. The sub bracket 16 and the operation pedal 30 indicated by the alternate long and short dash line in FIG. 4B are a case where they are translated together with the pedal bracket 14 together with the pedal bracket 14 in accordance with the backward displacement of the dash panel 12. Position.

When the slide member 44 is detached from the support member 22 and moved to the vehicle rear side, the slide member 44 is brought into contact with the inclined surface 52 of the guide 50. The guide 50 is fixed to the instrument panel reinforcement 20 together with the support member 22, and the inclined surface 52 is a flat surface that is inclined downward toward the vehicle rear side. Therefore, even after the slide member 44 comes into contact with the inclined surface 52, if the sub bracket 16 is further moved to the vehicle rear side along with the backward displacement of the dash panel 12, the slide member 44 is forced along the inclined surface 52. The sub bracket 16 is retracted and rotated clockwise around the second axis S2 as indicated by an arrow A in FIG. 4 (b). Further, when the first support shaft 32 is displaced to the vehicle lower side along with the revolving rotation, the operation pedal 30 connected to the intermediate lever 36 via the connection link 38 is relatively moved by the intermediate lever 36. And is rotated clockwise around the first axis S1 as indicated by an arrow B. Thereby, the step part 34 of the operation pedal 30 is moved to the front side of the vehicle, and the backward movement toward the driver's seat side is suppressed accordingly. At this time, the position of the step portion 34 may be at least the position indicated by the alternate long and short dash line, that is, the position when it is retracted integrally with the dash panel 12, for example, the vehicle front side. Further, it may be merely rotated around the second axis S2.

Although the sub bracket 16 is positioned in the assembly posture by the temporary fixing pin 24, the temporary fixing pin 24 is broken when the one end portion 16a is displaced to the vehicle lower side by the guide 50, and the sub bracket 16 is retracted. Rotation is allowed. The temporary fixing pin 24 is for preventing the swing before connecting the one end portion 16a of the sub bracket 16 to the support member 22, and may be omitted. Further, the one end 16 a of the sub bracket 16 may be removed after being connected to the support member 22.

In such a brake pedal device 10 of this embodiment, one end portion 16a of the sub bracket 16 connected to the pedal bracket 14 so as to be rotatable around the second axis S2 is disposed in the instrument panel reinforcement 20. Since the support member 22 is removably supported by the support member 22, the support member 22 has a high degree of freedom in the support structure. In this embodiment, the fastening member 46 and the slit 48 allow the one end 16a to be detached. Is attached. For this reason, the sub bracket 16 is held between the support member 22 and the pedal bracket 14 so that the support performance of the operation pedal 30 can be appropriately obtained at the normal time, and at one end with the backward displacement of the dash panel 12 at the time of a vehicle collision. The part 16a can be appropriately detached from the support member 22. Even if the pedal bracket 14 is deformed at the time of a collision, the one end 16a of the sub bracket 16 can be reliably detached from the support member 22 without being affected by the deformation. Thereby, coupled with the rotation of the sub bracket 16 around the second axis S2, the effect of suppressing the backward movement of the step portion 34 of the operation pedal 30 can be appropriately obtained.

Further, the one end portion 16a of the sub bracket 16 detached from the support member 22 is forcibly displaced toward the vehicle lower side by the guide 50 provided in the instrument panel reinforcement 20, so that the sub bracket 16 is moved in accordance with the backward displacement of the dash panel 12. The bracket 16 is mechanically and reliably retracted and rotated, and the effect of suppressing the backward movement of the stepped portion 34 of the operation pedal 30 can be appropriately obtained.

Further, since the operation pedal 30 is rotatably disposed on the sub bracket 16 and is connected to the operating rod 40 via an intermediate lever 36 disposed on the petal bracket 14, the sub bracket 16 is moved to an arrow. When the vehicle is retracted and rotated downward as indicated by A, the operation pedal 30 is pulled by the intermediate lever 36 and is rotated forward of the vehicle as indicated by arrow B. Thereby, the retraction suppression effect of the step part 34 of the operation pedal 30 is appropriately obtained.

Further, the third axis S3, which is the rotational axis of the intermediate lever 36, is set concentrically with the second axis S2. The intermediate lever 36 and the sub bracket 16 are rotated by the common second support shaft 18. Since it is movably supported, the number of parts and the cost are reduced.

Further, since the operation pedal 30 is disposed on the sub bracket 16 and only the intermediate lever 36 is disposed on the pedal bracket 14, the pedal bracket 14 can be reduced in size and weight. In particular, since the distance (moment) from the second support shaft 18 that receives the load of the sub bracket 16 and the intermediate lever 36 to the dash panel 12 is short, it is advantageous in terms of strength, and the pedal bracket 14 can be further reduced in weight.

Further, since the operation pedal 30 disposed in the sub bracket 16 is set at a portion where the first axis S1 which is the rotation axis does not overlap the pedal bracket 14, the pedal bracket 14 is deformed at the time of a vehicle collision. Even in this case, the first support shaft 32 is prevented from interfering with the pedal bracket 14, and the sub bracket 16 is appropriately retracted and rotated.

Next, another embodiment of the present invention will be described. In the following embodiments, parts that are substantially the same as those in the above embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 5 is a view corresponding to FIG. 4. In this brake pedal device 60, the pedal bracket 62 is larger than the pedal bracket 14 and extends toward the vehicle rear side. The sub bracket 16 and the intermediate lever 36 are rotatably arranged via the support shaft 18. The other end portion 16b of the sub bracket 16 protrudes toward the front side of the vehicle with respect to the second support shaft 18, and the other end portion 16b has an operation pedal that does not overlap the pedal bracket 62 in a side view shown in FIG. 30 is rotatably arranged around the first axis S 1 via the first support shaft 32. Further, the upper end portion 30a of the operation pedal 30 protrudes obliquely upward on the rear side of the vehicle from the first support shaft 32, and the lower end portion 36a of the intermediate lever 36 protrudes toward the front side of the vehicle. The part 30a and the lower end part 36a are connected by a connecting link 38.

Also in such a brake pedal device 60, as shown in FIG. 5B, the dash panel 12 is displaced backward toward the vehicle rear side when the vehicle collides, and the sub bracket 16 moves toward the vehicle rear side with respect to the support member 22. When the relative displacement is made, the slide member 44 is slid to the vehicle rear side and detached from the support member 22, and the sub bracket 16 is retracted and rotated to the vehicle lower side as indicated by an arrow A by the guide 50. Further, when the first support shaft 32 is displaced to the upper side of the vehicle along with the retracting rotation of the sub bracket 16, the upper end portion 30 a of the operation pedal 30 is pulled relatively downward by the intermediate lever 36. The operation pedal 30 is rotated forward of the vehicle (in the clockwise direction of the first axis S1) as indicated by an arrow B. Thereby, the same operation effect as the above-mentioned embodiment is obtained, for example, the effect of suppressing the backward movement of the step portion 34 can be appropriately obtained. 5B is a position when the sub bracket 16 and the operation pedal 30 are retracted integrally with the dash panel 12, and the step portion 34 of the operation pedal 30 is at least from the position indicated by the alternate long and short dash line. May be moved to the front side of the vehicle.

FIG. 6 is a view corresponding to FIG. 4, and this brake pedal device 70 uses a smaller pedal bracket 14 than the brake pedal device 60 of FIG. 5, and the operation pedal 30 is connected to the pedal bracket 14. The second bracket 16 is disposed so as to be rotatable around the first axis S 1 via the first support shaft 32, and the other end portion 16 b of the sub bracket 16 is moved together with the operation pedal 30 via the first support shaft 32. The pedal bracket 14 is disposed so as to be rotatable about a biaxial center S2 (same as the first axial center S1). The intermediate lever 36 is located at an intermediate position of the sub bracket 16, that is, a position between the second axis S2 and the one end portion 16a, and a portion that does not overlap the pedal bracket 14 in a side view shown in FIG. The first support shaft 32 is disposed so as to be rotatable around the axis of a third support shaft 72 substantially parallel to the first support shaft 32. The axis of the third support shaft 72 is a third axis S 3 that is the rotation axis of the intermediate lever 36.

Also in such a brake pedal device 70, as shown in FIG. 6B, the dash panel 12 is displaced backward toward the vehicle rear side when the vehicle collides, and the sub bracket 16 moves toward the vehicle rear side with respect to the support member 22. When the relative displacement is made, the slide member 44 is slid to the vehicle rear side and detached from the support member 22, and the sub bracket 16 is retracted and rotated to the vehicle lower side as indicated by an arrow A by the guide 50. Further, when the third support shaft 72 is displaced to the vehicle lower side along with the retracting rotation of the sub bracket 16, the upper end portion 30a of the operation pedal 30 is pulled downward by the intermediate lever 36, and the operation pedal 30 is moved to an arrow. As shown by B, the vehicle is rotated forward of the vehicle (clockwise direction of the first axis S1). At this time, since the intermediate lever 36 is pulled by the operating rod 40 and rotated counterclockwise about the third axis S3, the rotation amount of the operation pedal 30 toward the vehicle front side is further increased. Thereby, the same operation effect as the above-mentioned embodiment is obtained, for example, the effect of suppressing the backward movement of the step portion 34 can be appropriately obtained. 6B is a position when the sub bracket 16 and the operation pedal 30 are retracted integrally with the dash panel 12, and the step 34 of the operation pedal 30 is at least from the position indicated by the alternate long and short dash line. May be moved to the front side of the vehicle.

Further, as the sub bracket 16 is retracted and rotated, the intermediate lever 36 is displaced together with the third support shaft 72 to the vehicle lower side, so that the intermediate lever 36 moves to the vehicle rear side as it is, and the support member 22 and the guide 50, etc. The effect of suppressing the backward movement of the stepped portion 34 due to the deformation of the intermediate lever 36 itself or the backward movement of the steering device or the like due to the deformation of the instrument panel reinforcement 20 is suppressed. For example, in the embodiment of FIG. 4, the intermediate lever 36 moves to the vehicle rear side as it is together with the pedal bracket 14, so that there is a possibility that the intermediate lever 36 contacts the support member 22 and the like.

Further, the second axis S2 which is the rotation axis of the sub bracket 16 is set concentrically with the first axis S1, and the sub bracket 16 and the operation pedal 30 are rotated by the common first support shaft 32. Since it is supported as possible, the number of parts and the cost are reduced.

Further, the intermediate lever 36 disposed in the sub bracket 16 is set at a portion where the third shaft center S3 which is the rotation axis of the intermediate lever 36 does not overlap the pedal bracket 14, so that the pedal bracket 14 is deformed at the time of a vehicle collision. Even in this case, the third support shaft 72 is prevented from interfering with the pedal bracket 14, and the sub bracket 16 is appropriately retracted and rotated.

FIG. 7 is a view corresponding to FIG. 4, and in this brake pedal device 80, compared with the brake pedal device 10 of FIG. 4, the operating rod 40 is directly connected to the operation pedal 30 without interposing the intermediate lever 36. In some cases, the operating rod 40 is connected to an intermediate position between the first support shaft 32 and the step portion 34 of the operation pedal 30, that is, a position below the first support shaft 32. Then, as shown in FIG. 7B, when the dash panel 12 is retracted and displaced backward in the vehicle at the time of a vehicle collision, and the sub bracket 16 is relatively displaced relative to the support member 22 toward the vehicle rear side, the slide member 44 is slid to the rear side of the vehicle and separated from the support member 22, and the sub bracket 16 is retracted and rotated downward as shown by an arrow A by the guide 50. Further, when the first support shaft 32 is displaced to the vehicle lower side along with the retracting rotation of the sub bracket 16, the intermediate position of the operation pedal 30 is pulled by the operating rod 40, so that the operation pedal 30 is moved to the arrow B. As shown in FIG. 1, the vehicle is rotated forward of the vehicle (clockwise direction of the first axis S1). Thereby, the same operation effect as the above-mentioned embodiment is obtained, for example, the effect of suppressing the backward movement of the step portion 34 can be appropriately obtained. 7B is a position when the sub bracket 16 and the operation pedal 30 are retracted integrally with the dash panel 12, and the step portion 34 of the operation pedal 30 is at least from the position indicated by the alternate long and short dash line. May be moved to the front side of the vehicle.

FIG. 8 is a view corresponding to FIG. 4, and this brake pedal device 90 is formed around the second axis S 2 on the pedal bracket 14 via the second support shaft 18 as compared with the brake pedal device 80 of FIG. 7. The sub-bracket 16 that is pivotally disposed on the rear side of the vehicle has a bent shape that extends upward and then bends toward the rear of the vehicle. 8, the operation pedal 30 is rotatably disposed around the first axis S 1 via the first support shaft 32 in a portion that does not overlap the pedal bracket 14 in the side view shown in FIG. 8. The clevis pin 42p of the clevis 42 that connects the operating rod 40 to the operation pedal 30 is connected to the operation pedal 30 at substantially the same position as the second axis S2 in a side view shown in FIG. In this case, when the sub bracket 16 is retracted and rotated downward as shown by the arrow A in the vehicle collision shown in FIG. The support shaft 32 is displaced to the vehicle rear side. At this time, since the position of the clevis pin 42p connected to the operating rod 40 is substantially coincident with the second axis S2 that is the rotation axis of the sub bracket 16, the operation pedal 30 is indicated by an arrow B. The sub-bracket 16 is substantially integrally rotated with the second axis S2 in the clockwise direction, that is, in the direction in which the step 34 is displaced forward of the vehicle. Thereby, the same operation effect as the above-mentioned embodiment is obtained, for example, the effect of suppressing the backward movement of the step portion 34 can be appropriately obtained. 8B is a position when the sub bracket 16 and the operation pedal 30 are retracted integrally with the dash panel 12, and the step portion 34 of the operation pedal 30 is at least from the position indicated by the alternate long and short dash line. May be moved to the front side of the vehicle.

FIG. 9 is a view corresponding to FIG. 4, and this brake pedal device 100 has a pedal bracket that has a slightly larger protruding amount toward the vehicle rear side than the pedal bracket 14 compared to the brake pedal device 70 of FIG. 6. 102 is used, and a sub bracket 16 is disposed at a tip end portion thereof via a second support shaft 18 so as to be rotatable around the second axis S2. Further, the other end portion 16b of the sub bracket 16 extends obliquely downward on the vehicle front side with respect to the second support shaft 18, and the pedal bracket 102 and the other end portion 16b in the side view shown in FIG. An operation pedal 30 is disposed on the non-overlapping portion so as to be rotatable around the first axis S 1 via the first support shaft 32. That is, both the operation pedal 30 and the intermediate lever 36 are disposed on the sub bracket 16, and the first axis S 1 and the third axis S 3, which are the rotation centers thereof, are second in the vehicle front-rear direction. They are set on the opposite sides of the axis S2.

Also in such a brake pedal device 100, as shown in FIG. 9B, the dash panel 12 is displaced backward toward the vehicle rear side when the vehicle collides, and the sub bracket 16 moves toward the vehicle rear side with respect to the support member 22. When the relative displacement is made, the slide member 44 is slid to the vehicle rear side and detached from the support member 22, and the sub bracket 16 is retracted and rotated to the vehicle lower side as indicated by an arrow A by the guide 50. As the sub bracket 16 is retracted and rotated, the intermediate lever 36 is displaced together with the third support shaft 72 to the vehicle lower side, and the operation pedal 30 is displaced together with the first support shaft 32 to the vehicle upper side. Then, the upper end 30a of the operation pedal 30 is pulled downward by the intermediate lever 36, and the operation pedal 30 is rotated to the vehicle front side (clockwise direction of the first axis S1) as indicated by an arrow B. At this time, since the intermediate lever 36 is pulled by the operating rod 40 and rotated counterclockwise about the third axis S3, the rotation amount of the operation pedal 30 toward the vehicle front side is further increased. Thereby, the same operation effect as the above-mentioned embodiment is obtained, for example, the effect of suppressing the backward movement of the step portion 34 can be appropriately obtained. 9B is a position when the sub bracket 16 and the operation pedal 30 are retracted integrally with the dash panel 12, and the step portion 34 of the operation pedal 30 is at least from the position indicated by the alternate long and short dash line. May be moved to the front side of the vehicle.

Further, as the sub bracket 16 is retracted and rotated, the intermediate lever 36 is displaced together with the third support shaft 72 to the vehicle lower side, so that the intermediate lever 36 moves to the vehicle rear side as it is, and the support member 22 and the guide 50, etc. The effect of suppressing the backward movement of the stepped portion 34 due to the deformation of the intermediate lever 36 itself or the backward movement of the steering device or the like due to the deformation of the instrument panel reinforcement 20 is suppressed.

Further, the operation pedal 30 and the intermediate lever 36 disposed in the sub bracket 16 are defined in a portion where the first shaft center S1 and the third shaft center S3 that are the rotation shaft centers thereof do not overlap the pedal bracket 102. Therefore, even when the pedal bracket 102 is deformed at the time of a vehicle collision, the first support shaft 32 or the third support shaft 72 is suppressed from interfering with the pedal bracket 102, and the sub bracket 16 is appropriately retracted and rotated. .

As mentioned above, although the Example of this invention was described in detail based on drawing, these are one Embodiment to the last, This invention is implemented in the aspect which added the various change and improvement based on the knowledge of those skilled in the art. be able to.

10, 60, 70, 80, 90, 100: Brake pedal device (vehicle pedal device) 12:

Dash panel

14, 62, 102: Pedal bracket 16: Sub bracket 16a: One end 16b: Other end 18: Second Support shaft 20: Instrument panel reinforcement (vehicle body side member) 22: Support member 30: Operation pedal 32: First support shaft 34: Tread 36: Intermediate lever 38: Connecting link 40: Operating rod (output member) 50: Guide 72 : Third support shaft S1: First shaft center S2: Second shaft center S3: Third shaft center

Claims

A pedal bracket disposed on the dash panel;
The pedal bracket is supported directly or indirectly by the pedal bracket so as to be rotatable about the first axis, and is mechanically connected to a predetermined output member. An operation pedal that is stepped on, and
In the reverse movement prevention device for suppressing the stepped portion of the operation pedal from moving backward to the driver seat side when the dash panel is moved backward to the driver seat side,
A sub-bracket connected to the pedal bracket so as to be rotatable about a second axis parallel to the first axis and having one end portion extending from the pedal bracket toward the vehicle rear side;
The vehicle body side member closer to the driver's seat than the dash panel supports the one end of the sub bracket, and when the sub bracket is retracted along with the backward displacement of the dash panel, A support member that allows the one end to be separated;
And the sub bracket is retracted and rotated around the second axis so that the one end is displaced downward in the vehicle as the one end is detached from the support member. A reverse prevention device for a vehicular pedal device, wherein the step of the operation pedal is mechanically inhibited from moving backward toward the driver's seat based on a mechanical connection between the output member and the operation pedal. .
The vehicle body side member is provided with a guide for guiding the one end portion detached from the support member to be displaced downward in the vehicle when the sub bracket is retracted along with the backward displacement of the dash panel. The reverse preventing device for a vehicular pedal device according to claim 1.
While the operation pedal is rotatably disposed on the sub bracket,
An intermediate lever coupled to the output member and coupled to the operation pedal via a coupling link is disposed on the pedal bracket so as to be rotatable about a third axis parallel to the first axis. Has been
3. The vehicle according to claim 1, wherein when the sub-bracket is retracted and rotated, the operation pedal is pulled by the intermediate lever and the step portion is moved forward of the vehicle. An anti-reverse device for the pedal device.
The third axis is set concentrically with the second axis, and the intermediate lever and the sub bracket are rotatably supported by a common support shaft. Preventive device for a vehicle pedal device.
While the operation pedal is rotatably disposed on the pedal bracket,
An intermediate lever coupled to the output member and coupled to the operation pedal via a coupling link is disposed on the sub bracket so as to be rotatable around a third axis parallel to the first axis. Has been
3. The vehicle according to claim 1, wherein when the sub-bracket is retracted and rotated, the operation pedal is pulled by the intermediate lever and the step portion is moved forward of the vehicle. An anti-reverse device for the pedal device.
The first axis is set concentrically with the second axis, and the operation pedal and the sub bracket are rotatably supported by a common support shaft. Preventive device for a vehicle pedal device.
The operation pedal is disposed on the sub bracket so as to be rotatable around the first axis on the vehicle upper side than the second axis.
The output member is directly connected to the operation pedal at an intermediate position between the first shaft center and the step portion,
3. The vehicle according to claim 1, wherein when the sub bracket is retracted and rotated, the operation pedal is pulled by the output member and the step portion is moved forward of the vehicle. 4. An anti-reverse device for the pedal device.
While the operation pedal is rotatably disposed on the sub bracket,
An intermediate lever coupled to the output member and coupled to the operation pedal via a coupling link is disposed on the sub bracket so as to be rotatable around a third axis parallel to the first axis. Has been
3. The vehicle according to claim 1, wherein when the sub-bracket is retracted and rotated, the operation pedal is pulled by the intermediate lever and the step portion is moved forward of the vehicle. An anti-reverse device for the pedal device.
The sub bracket includes a second end extending from the second axis to the vehicle front side opposite to the first end,
The said operation pedal and the said intermediate lever are arrange | positioned so that rotation in the mutually opposing site | part is carried out on both sides of the said 2nd axis center in the vehicle front-back direction among the said sub brackets. The vehicle's pedal device reverse prevention device according to claim.