JPH0518197Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) This invention relates to a support structure for a vehicle pedal such as an accelerator pedal.

(Prior Art) Conventionally, there is a support structure for a vehicle pedal as shown in FIG. 7, for example. In the same figure,
The vehicle pedal 101 is provided with a pedal boss 105 at the rotation base of a pedal arm 103, and the pedal boss 105 is rotatably supported by a bracket 107 on the vehicle body side, so that the pedal arm 103 is configured to be rotatable. A pedal part 109 is provided at the pivoting end of the pedal arm 103, and by stepping on the pedal part 109, the pedal arm 103 rotates and the vehicle pedal 1 is rotated.
01 is activated.

A return spring 111 is provided between the bracket 107 and the pedal arm 103 to return the pedal arm 103 to its initial position after a rotational operation. The return spring 111 includes a spring arm portion 113 that is fixed to the bracket 107 and generates a reaction force, a winding portion 115 that is wound around the outside of the pedal boss 105, and an engaging portion that engages with the pedal arm 103. 117.

In the above configuration, when the pedal portion 109 is stepped on, the pedal arm 103 rotates, and the pedal arm 103 engages with the engagement portion 117 of the return spring 111, thereby elastically deforming the winding portion 115. After the vehicle pedal 101 is operated, the return spring 1
The pedal arm 103 returns to the initial position due to the restoring force of the winding portion 115 of the pedal arm 11.

By the way, when you step on the foot 109, the pedal arm 1
When 03 is rotated, the return spring 111
Of the winding portions 115 , the winding portion on the pedal arm 103 side follows the rotation of the pedal boss 105 . On the other hand, of the winding portions 115 of the return spring 111, the winding portions on the bracket 107 side may come into contact with the pedal boss 105, causing noise or wear.

On the other hand, as shown in FIG. 9, for example, a synthetic resin collar 119 is provided between the pedal boss 105 and the winding portion 115 of the return spring 111 to cover the entire circumference of the pedal boss 105.
15 can be suppressed to suppress the occurrence of abnormal noise. On the other hand, the collar 119 is used for individual vehicle pedals 1 in which the diameters of the return spring 111 and the pedal boss 105 and the length of the pedal boss 105 are different.
It has to be designed individually for 01, and its versatility is low.

In addition, since the return spring 111 that interferes with the pedal boss 105 is the first winding part 115 of the winding part 115 that is closest to the bracket 107, by setting the length of the collar 119 to be short to a certain extent, the length of the pedal boss 105 can be reduced. It is possible to increase the versatility for On the other hand, simply color 119
If the length is simply set short, there is a risk that the collar 119 will move toward the pedal arm 103 and the winding portion 115 will interfere with the pedal boss 105, causing abnormal noise.

To solve this problem, for example, as shown in FIG. 11, it is conceivable to set the length of the collar 119 short and to provide a flange portion 121 on the bracket 107 side to suppress the movement of the collar 119. However, even with the above configuration, the versatility for pedal bosses 105 having different diameters is low.

This idea was created with a focus on the above problem, and is a vehicle pedal support that reliably suppresses interference between the pedal boss and return spring and suppresses the generation of abnormal noise regardless of the length or diameter of the pedal boss. The purpose is to provide a partial structure.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above object, this invention includes a pedal arm that is rotatable relative to the vehicle body, a pedal boss fixed to the rotational base of the pedal arm,
The pedal boss is comprised of a bracket on the vehicle body side that rotatably supports the pedal boss, and a return spring that returns the pedal arm to its initial position after the pedal arm is rotated, and the return spring is locked to the bracket. In the vehicle pedal support structure comprising a spring arm part, a winding part wound around the outer periphery of the pedal boss, and an engaging part engaged with the pedal arm, the return spring providing a generally arc-shaped collar that is interposed between at least the winding part closest to the bracket among the winding parts and the outer peripheral part of the pedal boss and elastically deforms and engages with the outer peripheral part of the pedal boss; This collar has a structure in which an engaging part that engages with the spring arm part is integrally molded.

(Function) In the above configuration, the collar is attached by interposing the collar between at least the winding portion closest to the bracket and the pedal boss, and engaging the engaging portion with the spring arm portion. When the vehicle pedal is rotated, the return spring is elastically deformed, and after the rotation operation, the vehicle pedal is returned to its initial position by the restoring force of the return spring.
At this time, among the winding parts of the return spring, the winding part closest to the bracket and the pedal boss are separated by the collar, so that interference noise between the return spring and the pedal boss can be suppressed. Further, since the engaging portion of the collar is engaged with the spring arm portion of the return spring, movement of the collar in the axial direction and circumferential direction of the pedal boss can be suppressed.

(Example) Hereinafter, an example of this invention will be described in detail based on the drawings.

1 to 4 show the structure of a support part for a vehicle pedal according to a first embodiment of this invention.

First, the structure will be described. The vehicle pedal 1 has a cylindrical pedal boss 5 fixed to it orthogonally to the rotational base of a pedal arm 3. The pedal boss 5 is rotatably supported by fitting into a bolt (not shown) protruding from a bracket 7 on the vehicle body side, and the pedal arm 3 is rotated by stepping on a foot 9 provided at the rotation end of the pedal arm 3. is configured to do so.

A return spring 1 is provided on the outer periphery of the pedal boss 5 to return the pedal arm 3 to its initial position.
1 is provided. The return spring 11 includes a linear spring arm portion 15 that is locked in a locking hole 13 formed in the bracket 7, a winding portion 17 that is wound around the outer circumference of the pedal boss 5, and a spring arm portion 17 on the rotation side of the pedal arm 3. (on the left side in FIG. 1) and an engaging portion 19 that is engaged on the left side in FIG. Here, a predetermined gap is formed between the pedal boss 5 and the winding part 17 of the return spring 11, and when the foot part 9 of the pedal arm 3 is depressed, the return spring 1
The first winding portion 17 is elastically deformed so that the engaging portion 19 follows the rotation of the pedal arm 3.

A collar 21 made of, for example, synthetic resin is provided between the first winding part 17a of the winding part 17 of the return spring 11 closest to the bracket 7 and the pedal boss 5, and this collar 21 is elastically deformable. It has a roughly arcuate shape.

The collar 21 is elastically deformed and engaged along the pedal boss 5, and is integrally formed with a collar body 23 interposed between the pedal boss 5 and the first winding portion 17a of the return spring 11. By engaging with the linear spring arm portion 15, the movement of the pedal boss 25 of the collar 21 in the axial direction and the circumferential direction is inhibited, and the collar 21
The engaging portion 25 is always positioned between the pedal boss 5 and the first winding portion 17a. Further, the collar body 23 is integrally provided with a guide portion 27 having a substantially U-shaped cross section and interposed in the winding direction of the winding portion 17a between the pedal boss 5 and the first winding portion 17a of the return spring 11. It is formed. Further, the engaging portion 25 is formed with an inclined portion 29 for facilitating engagement with the spring arm portion 15 of the return spring 11.

Next, the action will be explained.

In the above configuration, in order to attach the collar 21, the collar body 23 is first brought into contact with the outer circumference of the pedal boss 5. At this time, since the collar body 23 is elastically deformable, it can be elastically deformed along the outer periphery of the pedal boss 5, and has high versatility with respect to the diameter of the pedal boss 5. Next, the engaging portion 2 is attached to the spring arm portion 15 of the return spring 11.
After the inclined portion 29 of 5 is engaged while being elastically deformed, the guide portion 27 is engaged with the gap between the first winding portion 17a of the return spring 11 and the outer peripheral portion of the pedal boss 5.

As a result, the collar body 23 and the guide part 27 are interposed between the pedal boss 5 and the first winding part 17a of the return spring 11, and both 5, 17a
It is possible to suppress interference and generation of abnormal noise. Moreover, the engaging portion 25 is connected to the spring arm portion 1.
5, the guide portion 27 engages with the winding portion 17a.
and the pedal boss 5, the collar 21 does not move in the axial direction and circumferential direction of the pedal boss 5, and is always interposed between the first winding portion 17a and the pedal boss 5. become. Therefore, the first winding portion 17a, which tends to come into contact with the pedal boss 5 due to the reaction force of the bracket 7, can be reliably prevented from coming into contact with the pedal boss 5, and the entire collar 21 can be made smaller and the cost can be reduced. Become.

As mentioned above, according to this embodiment, color 2
1 is elastically deformable, it can be engaged with various pedal bosses 5 having different diameters, and has high versatility.
In addition, by interposing the collar 21 between the pedal boss 5 and the first winding part 17a, the first winding part 17a which is most likely to interfere with the pedal boss 5 is provided.
This color 21 can be used even for pedal bosses 5 of different lengths.
can be applied, further increasing versatility. Further, since the engaging portion 25 of the collar 21 is engaged with the spring arm portion 15, the collar 21 does not move in the axial direction and circumferential direction of the pedal boss 5, and interference between the first winding portion 17a and the pedal boss 5 is reliably prevented. You can suppress the sound.

Next, another embodiment will be described with the same reference numerals assigned to the same components as those in the first embodiment.

FIG. 5 shows a second embodiment. In this embodiment, the collar 21 is connected to the collar body 23 and the engaging portion 2.
5, and the guide section 27 according to the first embodiment.
is not provided. Also in the above configuration, the first
In addition to obtaining the same effects as in the embodiment described above, since the guide portion 27 is not provided, it is possible to contribute to cost reduction.

FIG. 6 shows a third embodiment. In this embodiment, a guide portion 27 provided on the collar body 23
is formed in a thin, flat, free state. In this embodiment as well, the same effects as in the previous embodiment can be obtained.

Note that this invention is not limited to the above embodiment, and for example, the engaging portion 25 of the collar 21 is connected to the first winding portion 17a of the winding portion 17 of the return spring 1 that is closest to the bracket 7 and this winding. Line part 17
A similar effect can be obtained by interposing it between the second winding portion 17b adjacent to a and the outer circumferential portion of the pedal boss 5. In this case, the interference sound between the return spring 11 and the pedal boss 5 can be suppressed more effectively than in the above embodiment.

[Effect of idea]

As explained above, according to this invention, since the collar that engages with the pedal boss is elastically deformable, it can be engaged with pedal bosses having different diameters, and is highly versatile. Moreover, it is possible to reliably prevent the winding part closest to the bracket, which is relatively prone to interference, from interfering with the pedal boss.
The collar can be attached to pedal bosses of different lengths, making it more versatile.

Furthermore, although the collar is provided only between the winding portion closest to the bracket and the pedal boss, the engaging portion engages with the spring arm portion and moves in the axial and circumferential directions of the pedal boss. can be suppressed.

In this way, the overall size of the collar can be reduced, contributing to cost reduction.

[Brief explanation of the drawing]

FIG. 1 is an overall exploded perspective view of a vehicle pedal support structure according to an embodiment of the invention, FIG. 2 is an enlarged perspective view of the collar, and FIG. 3 is an assembled version of the structure shown in FIG. 1. The front view, Figure 4 is the side view of Figure 3, and Figure 5 is the side view of Figure 3.
The figure is a perspective view of the collar according to the second embodiment.
The figure is a perspective view of a collar according to the third embodiment;
The figure is an overall exploded perspective view of the conventional example, Figure 8 is a sectional view of the main part after assembly of Figure 7, and Figures 9 to 11 are cross sections of the structure of Figure 8 with the collar of the conventional example attached. It is a diagram. 1... Vehicle pedal, 3... Pedal arm, 5
... Pedal boss, 7 ... Bracket, 11 ... Return spring, 15 ... Spring arm section, 17 ... Winding section, 21 ... Collar, 23 ...
Collar main body, 25...engaging portion.

Claims (1)

[Scope of utility model registration request] A pedal arm that is rotatable with respect to the vehicle body, a pedal boss fixed to the rotating base of the pedal arm, a bracket on the vehicle body that rotatably supports the pedal boss, and a The pedal arm includes a return spring that returns the pedal arm to its initial position, and the return spring includes a spring arm portion that is locked to the bracket, a winding portion that is wound around the outer periphery of the pedal boss, and a return spring that returns the pedal arm to the initial position. and an engaging part that is engaged with the pedal boss. The pedal boss is provided with a generally arc-shaped collar that is elastically deformed and engaged with the outer periphery of the pedal boss, and an engaging portion that engages with the spring arm portion is integrally molded on the collar. Characteristic vehicle pedal support structure.