JPH0623820U - Accelerator pedal support device - Google Patents

Abstract

(57) [Abstract] [Purpose] The pivot center of the pedal arm can be pivotally supported by a very simple and low-cost means without the need for machining the fulcrum pin, and the rattling of the left and right of the pedal can be eliminated. Improve the product appeal. [Structure] A fulcrum pin 3 which is a swing center of the pedal arm 2.
In an accelerator pedal support device including a pedal retainer 4 for pivotally supporting the pedal and a return spring 5 for returning the pedal arm 2 after the operation, in the vicinity of the pivot pin pivotal support portion of the pedal retainer 4 on the pedal arm side. A protrusion 15 that partially contacts the pedal arm 2 when swinging is formed, and a retaining member 16 that prevents the fulcrum pin 3 from coming off is provided at the end of the fulcrum pin 3 opposite to the pedal arm. ing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an accelerator pedal support device, and more particularly to a structure for rotatably supporting a swing center of a pedal arm in an accelerator pedal.

[0002]

[Prior art]

 Generally, an accelerator pedal in an automobile is supported by pivotally supporting a fulcrum pin, which is a swing center of a pedal arm, with respect to a pedal retainer fixed to a vehicle body member (for example, a dash panel). There is.

As a pivotal support structure of the pedal retainer and the fulcrum pin, which has been widely used in the past, as shown in FIG. 5, a pair of pivotal support walls b and b erected from the pedal retainer a are provided. A fulcrum pin e fixed to the swing center of the pedal arm d is inserted through the formed through holes c, c, and a retaining ring f ( Alternatively, a spring pin, a split pin, etc. may be fitted while a boss part g for partial contact is formed at the end of the fulcrum pin e on the pedal arm side.

[0004]

[Problems to be solved by the device]

 In the case of the pivot support structure as described above, it is necessary to perform cold forging on a pin material having an outer diameter D to form a partially bulged boss portion g (outer diameter D '). There is a problem that the number of man-hours for e increases and the cost increases. As shown in FIG. 6, when the entire end of the fulcrum pin e on the pedal arm side is used as the boss portion g, the pin material having the outer diameter D ′ is cut to the outer diameter D except for the portion to be the boss portion g. However, there is a problem that the number of man-hours required to process the fulcrum pin e increases and the cost also increases.

Further, in the case of the pivotal support structure as described above, the retaining ring f (or the spring pin, the split pin, etc.) fitted and inserted into the end of the fulcrum pin e on the side opposite to the pedal arm is easy to assemble. However, the fulcrum pin e must be grooved (or holed), which leads to an increase in cost. However, in the case of the retaining ring f, etc., the fulcrum pin e is only prevented from coming off in the axial direction, so that the structure causes the left and right rattling of the pedal, and the pivot point of the fulcrum pin e may differ due to manufacturing errors or aging. A play (that is, a gap between the retaining ring f and the pivot wall b) may occur in the supporting portion.

The present invention has been made in view of the above points. A first object of the present invention is to make a swing center of a pedal arm by an extremely simple and low-cost means without requiring machining of a fulcrum pin. The second purpose is to prevent rattling of the fulcrum pin pivotal support portion due to structural or manufacturing errors or aging.

[0007]

[Means for Solving the Problems]

 According to the invention of claim 1, as means for solving the above-mentioned problems, a pedal retainer that pivotally supports a fulcrum pin that is a swing center of a pedal arm, and a return spring that returns after the pedal arm is operated. In the accelerator pedal support device including the above, a convex portion that partially contacts with the pivot arm pivotal support portion on the pedal arm side of the pedal retainer when the pedal arm swings is formed, and At the end of the pedal arm side, a retaining member is provided to prevent the fulcrum pin from coming off.

According to a second aspect of the present invention, as means for solving the above-mentioned problems, in the accelerator pedal support device according to the first aspect, the retaining member is provided at an end of the fulcrum pin on the side opposite to the pedal arm. It is a push plate nut that is inserted in the opposite direction.

[0009]

According to the first aspect of the invention, the following actions can be obtained by the above means.

That is, when the pedal arm is swung, the convex portion formed on the pedal retainer and the pedal arm partially contact with each other, so that the sliding friction resistance is reduced, and the fulcrum pin is prevented from coming off and positioned in the axial direction. Can be achieved.

According to the second aspect of the invention, the following effects can be obtained by the above means.

That is, the push plate nut fitted into the fulcrum pin prevents the fulcrum pin from coming off in the axial direction and exerts a pressing force for pulling the fulcrum pin toward the side opposite to the pedal arm.

[0013]

[Effect of device]

 According to the invention of claim 1, in an accelerator pedal support device including a pedal retainer that pivotally supports a fulcrum pin that is a swing center of a pedal arm, and a return spring that returns after the pedal arm is operated. In the vicinity of the fulcrum pin pivotal support portion on the pedal arm side of the pedal retainer, a convex portion that partially contacts the pivot arm pivoting portion is formed, and at the end of the fulcrum pin on the side opposite to the pedal arm, By providing a retaining member to prevent the fulcrum pin from coming off, when the pedal arm swings, the convex portion formed on the pedal retainer and the pedal arm make partial contact, reducing sliding friction resistance and supporting the fulcrum pin. Since it is possible to prevent the shaft from coming off in the axial direction, it is possible to form a convex portion on the pedal retainer without machining on the fulcrum pin. There are practical effect of obtaining a pivot structure of the swing center of the pedal arm by a simple and low-cost means Te.

According to a second aspect of the present invention, in the accelerator pedal support device according to the first aspect, the retaining member is a fulcrum pin that is a push plate nut that is inserted into the end of the fulcrum pin on the side opposite to the pedal arm. This prevents the shaft from slipping out in the axial direction and exerts the pressing force that pulls the fulcrum pin toward the side opposite to the pedal arm.Therefore, a push plate nut can be fitted into the fulcrum pin without machining the fulcrum pin. With a simple means, the fulcrum pin can be prevented from coming off and the left and right rattling of the pedal can be structurally killed.Even if there is an error in manufacturing or there is a secular change, the pushing force of the push plate nut The fulcrum pin has a practical effect of preventing looseness in the pivotal support.

[0015]

【Example】

 Hereinafter, some preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First Embodiment FIGS. 1 to 3 show an accelerator pedal support device according to a first embodiment of the present invention. This embodiment corresponds to the inventions of claims 1 and 2.

As shown in FIGS. 2 and 3, the accelerator pedal support device of the present embodiment pivotally rotatably supports a fulcrum pin 3 fixed to the swing center of a pedal arm 2 constituting an accelerator pedal 1. The pedal retainer 4 and the return spring 5 for returning the pedal arm 2 after the operation. Reference numeral 6 is a throttle cable connected to the upper end of the pedal arm 2, 7 is an accelerator pad that is attached to the lower end of the pedal arm 2 and is depressed by the foot of an occupant, and 8 is a dash panel that is a vehicle body member.

In the case of the present embodiment, the pedal retainer 4 is formed of a synthetic resin integrally molded product, and as shown in FIG. 1, two upper and lower parts are fixed to the dash panel 8 with bolts 9. It is provided with a substantially flat plate-shaped base portion 10 having the mounting leg portions 11 and 11 and a pair of pivot support wall portions 12 and 12 which are integrally provided upright from both sides in the vehicle width direction of the base portion 10.

Insertion holes 13 and 13 for inserting the fulcrum pin 3 are formed in the pivot support walls 12 and 12, respectively, and the fulcrum pin 3 is inserted into the insertion holes 13 and 13. The fulcrum pin 3 is pivotally supported by being inserted from the side of the pedal arm.

The return spring 5 is inserted between the pivotally supporting wall portions 12, 12 of the fulcrum pin 3, and the fixed end 5 a thereof is formed at the pivotally supporting wall portion 12 located on the side opposite to the pedal arm. While being inserted and fixed in the hole 17, its working end 5b is attached to the pedal arm 2 by extending outward from the notch 12a formed in the upper portion of the pivot wall 12 located on the pedal arm side in the vehicle width direction. Has been. That is, the return spring 5 acts on the upper portion of the pedal arm 2 in the counterclockwise direction (in other words, the direction in which the pedal arm 2 is returned after being operated).

A stopper portion 14 that extends outward in the vehicle width direction and restricts counterclockwise swinging of the pedal arm 2 is provided at an upper end of the pedal arm-side pivotally supporting wall portion 12 of the pedal retainer 4. It is projected integrally.

Therefore, in the vicinity of the fulcrum pin pivotal support portion of the pedal arm side pivotal wall portion 12 of the pedal retainer 4 (in other words, in the vicinity of the lower side of the insertion hole 13), the pedal arm 2 swings when the pedal arm 2 swings. The convex portion 15 that partially contacts is integrally formed. In the case of the present embodiment, the convex portion 15 is a convex line formed in the front-rear direction of the pivot wall portion 12.

On the other hand, a push plate nut 16 that acts as a retaining member that prevents the fulcrum pin 3 from being pulled out is fitted into the end of the fulcrum pin 3 opposite to the pedal arm. The push plate nut 16 is provided with a plurality of elastic pieces 16a, 16a, ..., which are expanded outward by being forcibly fitted to the fulcrum pin 3 on the inner peripheral portion thereof, and prevent the fulcrum pin 3 from coming off in the axial direction. In addition, the fulcrum pin 3 can exert a pressing force that pulls the fulcrum pin 3 to the side opposite to the pedal arm.

In the case of this embodiment, the cutout portion 12a, the stopper portion 14, the convex portion 15 and the insertion hole 17 are also formed in the pivotal support wall portion 12 on the side opposite to the pedal arm. As a result, the pedal retainer 4 can be adapted to both right-hand drive vehicles and left-hand drive vehicles.

The accelerator pedal support device configured as described above operates as follows.

When an occupant steps on the accelerator pad 7, the pedal arm 2 is swung clockwise as indicated by an arrow M in FIG. 2, and when the stepping force on the accelerator pad 7 is released, the pedal arm 2 returns to the return spring. The urging force of No. 5 swings back to the position regulated by the stopper portion 14. At this time, the convex portion 15 formed on the pedal arm side pivotal support wall portion 12 of the pedal retainer 4 and the pedal arm 2 are separated. By making partial contact, it is possible to achieve reduction of sliding frictional resistance and prevention of axial removal of the fulcrum pin 3. Therefore, the pivotal support structure of the swing center of the pedal arm 2 is formed by the extremely simple and low-cost means of forming the convex portion 15 on the pedal retainer 4 side without machining the fulcrum pin 3 as in the conventional example. You can get it.

On the other hand, the push plate nut 16 inserted into the end of the fulcrum pin 3 on the side opposite to the pedal arm prevents the fulcrum pin 3 from coming off in the axial direction, and also pushes the fulcrum pin 3 toward the side opposite to the pedal arm. Since the force can be exerted, the fulcrum pin 3 can be removed by an extremely simple means of inserting the push plate nut 16 into the fulcrum pin 3 without processing the fulcrum pin 3 as in the conventional example. Stopping can be achieved and the left and right rattling of the pedal can be structurally killed, and even if there is an error in manufacturing or secular change, the pushing force of the push plate nut 3 causes rattling of the fulcrum pin pivotal support. It can be prevented.

Embodiment 2 FIG. 4 shows a pedal retainer in an accelerator pedal support device according to Embodiment 2 of the present invention. This embodiment corresponds to the inventions of claims 1 and 2.

In the case of the present embodiment, the pedal retainer 4 is formed by processing a metal plate into a substantially U-shape, and the vicinity of the fulcrum pin pivotal support portion in the pivotal support wall portions 12, 12 (in other words, the insertion In the vicinity of the holes 13, 13 in the vertical direction), a pair of convex portions 15, 15 is formed by rib processing for protruding the pivotal support wall portion 12 from the inner side to the outer side. Other configurations, functions, and effects are the same as those in the first embodiment, and the description will be omitted to avoid duplication.

The invention of the present application is not limited to the configuration of each of the above-described embodiments, and it goes without saying that the design can be changed as appropriate without departing from the spirit of the invention.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a main part of an accelerator pedal support device according to a first embodiment of the present invention.

FIG. 2 is a side view showing the accelerator pedal support device according to the first embodiment of the present invention.

FIG. 3 is a front view showing the accelerator pedal support device according to the first embodiment of the present invention.

FIG. 4 is a perspective view showing a pedal retainer in an accelerator pedal support device according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view of essential parts showing an example of a conventional accelerator pedal support device.

FIG. 6 is a sectional view of an essential part showing another example of a conventional accelerator pedal support device.

[Explanation of symbols]

1 is an accelerator pedal, 2 is a pedal arm, 3 is a fulcrum pin, 4 is a pedal retainer, 5 is a return spring, 1
Reference numeral 0 is a base portion, 11 is a mounting leg portion, 12 is a pivot wall portion, 12a is a cutout portion, 13 is an insertion hole, 14 is a stopper portion, 15 is a convex portion, and 16 is a retaining member (push plate nut).

Claims (2)

[Scope of utility model registration request] 1. An accelerator pedal support device comprising: a pedal retainer for rotatably pivoting a fulcrum pin serving as a swing center of a pedal arm; and a return spring for returning the pedal arm after operation. In the vicinity of the fulcrum pin pivotal support on the pedal arm side of the pedal retainer,
A convex portion is formed which is in partial contact with the pedal arm when the pedal arm swings, and a retaining member is provided at an end of the fulcrum pin on the side opposite to the pedal arm to prevent the fulcrum pin from coming off. And accelerator pedal support device. 2. The accelerator pedal support device according to claim 1, wherein the retaining member is a push plate nut that is inserted into an end of the fulcrum pin on the side opposite to the pedal arm.