JPH10297400A - Pedal supporting structure for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control the displacement of a footing surface for a vehicular pedal when external force equal to or more than a specified value is applied thereto from the front side of the vehicle. SOLUTION: When external force equal to or more than a specified value is applied thereto, load trying to let a bracket buckle in the longitudinal direction, is inputted to the bracket 10. In this case, the side plates 11 and 11 of the bracket 10 are completely extended so as to be located in a space between a bridging member 16 and a mounting member 18, and since their siffness in the longitudinal direction is low, they are crushable with ease. However, a back plate 40 is parted with respect to the bridging member 16, furthermore, since it is high in stiffness in the longitudinal direction, it will never be crushed. In thin case, the part to be pressed 31 of a lever 30 is pressed by the flange 42a at the bottom surface of a guide groove of the back plate 40, the pressed lever 30 allows the boss part 25a of a pedal 25 to actuate a pedal 25 in such a way that it is rocked to the front side of a vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pedal support structure for a vehicle such as a brake pedal.

[0002]

2. Description of the Related Art Conventionally, various measures have been taken as a countermeasure when an external force exceeding a predetermined value acts from the front of a vehicle. As an example of this kind of countermeasure, there is a configuration disclosed in Japanese Utility Model Laid-Open No. 1-73664.

[0003] The configuration disclosed in this publication will be briefly described as shown in FIG.
00, the steering column 402 covers the upper plate member 40.
4 and a pair of side plate members 406, and is supported on the vehicle body side by a shaft 410 that penetrates between the side plate members 406 and 406 and supports a lower edge of the steering column 402.

Further, the tilt bracket 408 described above is used.
A knee protector 412 having a substantially circular arc shape and being elastically deformable is provided below. 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 structure, when an external force equal to or more than a predetermined value acts from the front of the vehicle, the occupant attempts to inertia move toward the front of the vehicle, and accordingly, the legs of the occupant flex in the same direction with the knee as a starting point. Try to inertia move to. For this reason,
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 occupant's knee only comes into contact with knee protector 412.

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

As a result of repeated experiments conceived from such a viewpoint, the inventor of the present invention focused on the deformation and displacement behavior of the body panel and the like when an external force of a predetermined value or more was applied from the front of the vehicle, and focused on the brake pedal and the like. It has been concluded that controlling the displacement of the vehicle pedal is also a very effective measure.

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

[0009]

Means for Solving the Problems and Effects of the Invention In order to solve the above problems, a vehicle pedal support structure of the present invention comprises a bracket attached to a front panel of a driver's seat of a vehicle, and a boss of the pedal using the bracket. A pedal supporting shaft for rotatably supporting the portion, and a boss portion of the pedal, which is integrally provided, and is activated when an external force of a predetermined value or more acts from the front of the vehicle to swing the pedal forward of the vehicle. And an operating member.

In such a vehicle pedal support structure, when an external force equal to or more than a predetermined value acts from the front of the vehicle, the boss of the pedal is directly driven by, for example, a driver's seat front panel (for example, a dash panel) or through another member (for example, a bracket). An operating member provided integrally with the section is operated (for example, rocked). By operating the operating member, the pedal is swung forward of the vehicle, and an effect is obtained that a space at the foot of the occupant can be secured.

In the present invention, as described in claim 2, the operating member is operated by being pressed by the bracket when an external force equal to or more than a predetermined value acts from the front of the vehicle. Is also good. In this case, since the operating member is pressed by the bracket, it is possible to obtain an effect that the pedal can be swung to the front of the vehicle with a simple structure.

Further, in the present invention, as set forth in claim 3, the bracket has a back plate that covers an upper end and has a guide groove for loosely inserting the operating member, and the operating member is a vehicle. It may be activated by being pressed by the bottom of the guide groove when an external force equal to or more than a predetermined value acts from the front. In this case, since the operating member is pressed at the bottom of the guide groove, an effect is obtained that the pedal can be swung to the front of the vehicle with a simpler structure.

Further, as set forth in claim 4, the back plate has a pressing surface capable of making surface contact with the operating member, and the operating member is actuated when an external force equal to or more than a predetermined value acts from the front of the vehicle. It may be activated by being pressed by the pressing surface. In this case, the back plate presses the operating member by the pressing surface when an external force equal to or more than a predetermined value acts from the front of the vehicle.
That is, since the pressing of the operating member is performed not on the linear portion but on the pressing surface, the back plate can be pressed with a sufficient pressing force without fear of being sheared by the operating member. As a result, the effects of the present invention can be reliably obtained.

Still further, as described in claim 5, the back plate is disposed so as to be obliquely upwardly pressable from the driver's seat front plate side toward the operating member, and the operating member is
The portion pushed by the back plate and extending toward the front of the vehicle may be bulged in a curved or curved shape. In this case, when an external force equal to or more than a predetermined value is applied from the front of the vehicle, the back plate presses the operating member extending toward the front of the vehicle so as to push up. At this time, since the pressed portion of the operating member bulges in a curved or curved shape, the moment of the force applied to the operating member about the pedal support axis coincides with the direction in which the pedal swings forward in the vehicle. For this reason, the pressed operating member is surely
The pedal operates to swing forward of the vehicle. As a result, the effects of the present invention can be reliably obtained.

[0015] In the operating member, a portion to be pressed by the back plate may be formed in a planar shape. In this case, the operating member is not likely to be sheared when pressed by the back plate, and is pressed with a sufficient pressing force, so that the effects of the present invention can be reliably obtained. Further, not only one operating member but also two or more operating members may be provided. For example, the operating members may be provided on both sides of the pedal.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. Note that the embodiment of the present invention
It is needless to say that the present invention is not limited to the following embodiments, and can take various forms within the technical scope of the present invention.

FIG. 1 is a side view of the vehicle pedal support structure of the present embodiment, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a plan view of the vehicle pedal support structure of the present embodiment, and FIG. FIG. 5 is an assembly perspective view, and FIG. As shown in FIGS. 1, 3, and 4, a vehicle pedal support structure 1 of the present embodiment includes a bracket 10, a bolt 2 as a pedal support shaft.
0, a lever 30 is provided as an operating member.

The bracket 10 includes side plates 11, 11, a back plate 40, and a bridging member 16. Side plate 1
1 and 11 are erected from an attachment member 18 facing each other, and the attachment member 18 is attached to the dash panel 2 by four bolts. This side plate 11, 1
1 (ends on the right side in FIG. 1)
6 are crosslinked. The back plate 40 is formed in a substantially U-shaped cross section (see FIG. 4), and is welded to both side plates 11 so as to cover the upper surfaces of the side plates 11. The back plate 40 is provided obliquely upward with respect to the lever 30 from the dash panel 2 side as shown in FIG. Also, the back plate 40
As shown in FIG. 4, a guide groove 41 into which the lever 30 is loosely fitted.
It has. A downward flange 42 is provided around the guide groove 41, and a flange 42 a corresponding to the bottom of the guide groove 41 corresponds to a lever pressing surface. Further, the bridge member 16 and the rear end of the back plate 40 are separated in the front-rear direction. That is, a part (the front side of the vehicle) of the upper surface of the bracket 10 is covered with the back plate 40.

The bracket 10 has a bridge member 16
The rear end is fixed to the vehicle body side by being connected to a cowl (not shown) or the like (an instrument panel reinforcement (not shown) is arranged at a rear and separated position behind). . As shown in FIG. 2, the pedal 25 includes a boss 25a disposed between the side plates 11, 11 of the bracket 10.
And are integrated by welding or the like. A pair of bushes 26, 26 are inserted into the boss 25a from both open ends. A collar 27 is inserted into the pair of bushes 26, 26. The bolt 20 is connected to one side plate 11
Through the collar 27 from the through hole 10a provided in the other side plate 1
1 and is fastened by a nut 21. The bolt 20 is provided on the boss 25 of the pedal 25.
a is rotatably supported.

The lever 30 is a plate-like member extending forward of the vehicle, and is fixed to the boss 25a of the pedal 25 by welding (or caulking).
a). The front end (left side in FIG. 1) of the lever 30 is loosely inserted into the guide groove 41 of the back plate 40, and the portion facing the flange 42 a at the bottom of the guide groove 41, that is, the pressed portion 31 has a curved surface curved upward. Is formed.

Here, the bridge member 16, the lever 30, and the back plate 40 are made thicker or made of a highly rigid material, for example, so that the rigidity in the front-rear direction of the side plates 11, 11 of the bracket 10 is increased. It is designed to be higher than the rigidity in the front-rear direction. Next, the operation of the vehicle pedal support structure 1 of the present embodiment will be described.

During normal running or stopping, the pedal 2
In 5, the boss 25 a is rotatably supported by the bolt 20, so that the driver can perform a normal pedal operation without any trouble. The lever 30 is provided on the boss 25a of the pedal 25.
, So that it rotates together with the pedal 25.

On the other hand, when an external force equal to or more than a predetermined value acts from the front of the vehicle, the dash panel 2 receives a rearward (rightward in FIG. 1) force of the vehicle. At this time, as shown in FIG. 5, the front end of the bracket 10 is fixed to the dash panel 2 by the mounting member 18 and the rear end is fixed to the vehicle body side such as the cowl by the bridging member 16. Therefore, a load for buckling in the front-rear direction is input to the bracket 10. At this time, the side plates 11, 11 of the bracket 10 are
It extends completely between the bridging member 16 and the attachment member 18 and has low rigidity in the front-rear direction, so that it is easily crushed (buckled). However, the back plate 40 is separated from the bridge member 16 and has high rigidity in the front-rear direction.
Does not crush (or is hard to crush).

For this reason, the bridging member 16 of the bracket 10
Although the distance between the mounting member 18 and the mounting member 18 (that is, the length of the side plates 10 and 10 in the front-rear direction) is reduced, the distance between the mounting member 18 and the lever 30 (that is, the length of the back plate 40 in the front-rear direction) is reduced.
Does not change. At this time, the back plate 40 presses the pressed portion 31 of the lever 30 so as to push it up from below with the flange 42a on the bottom surface of the guide groove 41, or translates it rearward in the vehicle (rightward in FIG. 5). Press. At this time,
The moment of the force around the bolt 20 received by the lever 30 is due to the fact that the pressed portion 31 is bulged in a curved shape as shown in FIG.
In the clockwise direction. Therefore, pedal 2
The boss 25a rotates so that the pedal 25 swings forward of the vehicle.

In this embodiment, the rigidity of the lever 30 and the back plate 40 is different from that of the dash panel 2 due to the longitudinal load applied to the side plates 11 of the bracket 10 when an external force of a predetermined value or more is applied from the front of the vehicle. Boss part 25 of pedal 25
a1 (L1 = L1-L1 '(where L1,
L1 ′ is a change in the distance between the dash panel 2 and the pressed portion 31 of the lever 30 due to the longitudinal load applied to the back plate 40 (△ L2 = L2−L2 ′ (see FIG. 1 and FIG. 5)).
L2 and L2 'are determined so that (1) and (2) are smaller (参照 L1> △ L2).

According to the vehicle pedal support structure of the present embodiment, the following effects can be obtained. When an external force equal to or greater than a predetermined value acts from the front of the vehicle,
Since the pedal 25 swings toward the front of the vehicle, a space at the foot of the occupant can be secured. Since the bracket 10 is not connected to the reinforcement supporting the steering wheel, even if an external force equal to or more than a predetermined value acts from the front of the vehicle and the dash panel 2 receives the rearward force of the vehicle, the bracket 10 is not connected to the reinforcement. The force is not transmitted, and the steering wheel does not move backward to the driver. Therefore, the safety of the driver is sufficiently ensured. Since the structure only has to add the lever 30 to the conventional pedal mechanism, it can be manufactured at low cost. Since the back plate 40 is provided with the guide groove 41 into which the lever 30 is loosely inserted, it can cover substantially the entire upper surface of the bracket 10, and the difference between the upper rigidity and the lower rigidity of the bracket 10. Can be increased. As a result,
When an external force equal to or more than a predetermined value is applied from the front of the vehicle, an effect of easily crushing (buckling) only the lower side of the bracket 10 while maintaining the upper side of the bracket 10 is apt to be exerted. The flange 42a at the bottom of the guide groove 41 of the back plate 40 is
Since the pressing surface can be brought into surface contact with the lever 30, the lever 3
The lever 30 can be pressed with a sufficient pressing force without the possibility of being sheared by 0. The back plate 40 presses the lever 30 extending forward of the vehicle so as to push up. At this time, the pressed portion 3 of the lever 30
1 has a curved surface, the moment of the force around the bolt 20 matches the direction in which the pedal 25 swings forward of the vehicle. Therefore, the pressed lever 30 operates so that the pedal 25 swings forward in the vehicle. The lever 30 and the back plate 40 are connected to the side plate 1 of the bracket 10.
Since the rigidity is higher than 1 and 11, the lever 30 is pressed by the back plate 40 with almost no deformation when an external force of a predetermined value or more is applied from the front of the vehicle.

Although only one lever 30 is provided in the above embodiment, a total of two levers 30 may be provided on both sides of the pedal 25 as shown in FIG. At this time, a guide groove 41 is provided for each lever 30 on the back plate 40. In this case, when an external force equal to or more than a predetermined value is applied from the front of the vehicle, the pedal 25 can be more reliably swung forward of the vehicle.

In the above embodiment, the lever 30 is a plate-like member. However, as shown in FIG. 7, a lever 60 having a substantially U-shape when viewed from above may be used. The pressed portion 61 of the lever 60 is formed in a curved surface having a large area. The back plate 40 is provided with a guide groove in which the lever 60 can be loosely inserted. In this case, when an external force of a predetermined value is applied from the front of the vehicle, the pressed portion 6 of the lever 60 is pressed.
1 is pressed with a sufficient pressing force without being likely to be sheared by the pressing of the back plate 40, so that the above-described effect can be reliably obtained.

In the above embodiment, the back plate 40 provided with the guide groove 41 into which the lever 30 can be loosely inserted is used.
As shown in the figure, the pressing surface 7 of the lever 30 has no guide groove.
A back plate 70 having an end face 1a may be used. In this case, since the area covering the upper surfaces of the brackets 10 and 10 is smaller than that of the back plate 40, the difference in rigidity between the upper and lower sides of the brackets 10 and 10 is reduced, but the effect of the present invention is obtained. Can be.

Further, in the above embodiment, the pedal 25 and the lever 30 are formed separately, but as shown in FIG.
The pedal 25 and the lever 30 may be formed integrally. In this case as well, the same effects as those of the above embodiment can be obtained, and the manufacturing can be more simplified than in the above embodiment.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle pedal support structure according to an embodiment.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a plan view of the vehicle pedal support structure of the embodiment.

FIG. 4 is an assembled perspective view of the present embodiment.

FIG. 5 is an operation explanatory diagram of the present embodiment.

FIG. 6 is a sectional view of a vehicle pedal support structure according to another embodiment.

FIG. 7 is a sectional view of a lever according to another embodiment.

FIG. 8 is an assembled perspective view of another embodiment.

FIG. 9 is an explanatory view of another embodiment, in which (a) is a perspective view of a lever-integrated pedal, and (b) is a cross-sectional view of a pedal mechanism.

FIG. 10 is a perspective view of a conventional pedal mechanism.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pedal support structure for vehicles, 2 ... Dash panel, 10 ... Bracket, 11 ... Side plate, 10a.
..Through holes, 16 bridge members, 18 mounting members,
20: bolt, 21: nut, 25: pedal, 25a: boss, 26: bush, 27
..Collar, 30 ... Lever, 31 ... Pressed portion,
40: back plate, 41: guide groove, 42: flange, 42a: flange.

Claims (5)

[Claims] A bracket attached to a front panel of a driver's seat of a vehicle; a pedal support shaft rotatably supporting the boss of the pedal with the bracket; and a pedal provided integrally with the boss of the pedal; An operating member that operates when an external force equal to or more than a predetermined value acts from the front of the vehicle to swing the pedal forward of the vehicle. 2. The vehicle pedal support structure according to claim 1, wherein the operating member is operated by being pressed by the bracket when an external force equal to or more than a predetermined value acts from the front of the vehicle. 3. The bracket has a back plate that covers an upper end and has a guide groove through which the operating member is loosely inserted, and the operating member is configured to receive the external force when a predetermined value or more is applied from the front of the vehicle. The support structure for a vehicle pedal according to claim 2, wherein the operation is performed by being pressed by a bottom portion of the guide groove. 4. The back plate has a pressing surface capable of making surface contact with the operating member, and the operating member is pressed by the pressing surface when an external force equal to or more than a predetermined value acts from the front of the vehicle. The pedal support structure for a vehicle according to claim 2, wherein the pedal support structure operates. 5. The back plate is disposed so as to be obliquely upwardly pressable from the driver's seat front plate side toward the operating member, and the operating member extends toward the vehicle front side and is pressed by the back plate. The pedal support structure for a vehicle according to any one of claims 2 to 4, wherein the bulges in a curved or curved shape.