JP2519457Y2 - Accelerator pedal device for vehicles - Google Patents

Description

The present invention relates to an accelerator pedal device for a vehicle, and more particularly to an organ type accelerator pedal device.

(Prior Art) FIG. 5 shows an example of a conventional organ type accelerator pedal device. As shown, an organ-type accelerator pedal 21 whose lower end is rotatably mounted on a floor panel 22 via a pedal hinge 23.
Has an accelerator rod insertion portion 24 on the back surface of the upper end portion thereof. The accelerator rod 25 whose one end is inserted and engaged with the accelerator rod insertion portion 24 has an accelerator link bracket 26.
It is rotatably attached to the shaft via the shaft 27, and when the accelerator pedal 21 is depressed, the accelerator pedal 21 rotates in conjunction with it,
The rotational movement is transmitted to the throttle valve (not shown) of the engine via the accelerator cable 28. Reference numeral 29 is a stopper bolt that limits the maximum depression angle of the accelerator pedal 21.

And in the case of the conventional accelerator pedal device described above,
As shown in the graph of FIG. 4, the pedal depression angle was set to be proportional to the throttle valve opening.

(Problems to be solved by the invention) By the way, although there are individual differences in the driver's depression of the accelerator pedal when driving a vehicle, it is rare that the driver suddenly deeply pushes the pedal, but rather gradually step it. This is the normal way to operate. Therefore, as shown in the above graph, the fact that the pedal depression amount is proportional to the throttle valve opening means that, for example, in the case of an automatic vehicle, the vehicle speed does not increase for each depression of the accelerator pedal. There is a so-called lagging feeling, and the pedal depression amount during normal running at a constant speed is also considerably deep, which makes it difficult to operate the accelerator pedal.

Therefore, in view of the above problems, the present invention has an object to provide an accelerator pedal device having a good operation feeling.

(Means for Solving the Problems) In order to solve the above problems, the present invention is configured as follows.

That is, one end is inserted into and engaged with an organ-type accelerator pedal and an accelerator rod insertion portion formed in the accelerator pedal, and is rotated in an arc around a specific point in conjunction with the depression operation of the accelerator pedal. In an accelerator pedal device including an accelerator rod and an accelerator cable for throttle operation that transmits the movement of the accelerator rod to a throttle valve, an initial stepping of the accelerator pedal is performed on an engagement surface of the accelerator rod insertion portion with the accelerator rod. The convex surface is formed to increase the ratio of the amount of rotation of the accelerator rod to the amount of pedal depression from the middle period to the middle period.

(Operation) In the accelerator pedal device according to the present invention configured as described above, the opening degree of the throttle valve can be increased from the initial depression of the accelerator pedal to the middle period.
In other words, a large throttle opening can be obtained at an early stage with respect to the pedal depression, so that a feeling of accelerating with a small pedal depression is obtained, which leads to an improvement in operation feeling. In addition, it becomes possible to obtain a desired vehicle speed with a relatively shallow depression.

(Example) Hereinafter, an example of the present invention will be specifically described with reference to the drawings.

In FIG. 1 showing the entire accelerator pedal device, 1
Is an organ type accelerator pedal, the lower end of which is rotatably mounted on the floor panel 2 via a pedal hinge 3. The accelerator pedal 1 is made of hard rubber wrapping an iron plate as a core material, and an accelerator rod insertion portion 4 is integrally formed on the upper back surface thereof. Therefore, the accelerator rod insertion portion 4 is also made of hard rubber.

The accelerator rod 5 is rotatably attached to an accelerator link bracket 6 erected on the floor panel 2. Specifically, the accelerator rod 5 is a shaft portion 5a rotatably attached to the accelerator link bracket 6.
And a crank-shaped rear rod portion 5b extending rearward from one end of the shaft portion 5a and laterally extending toward the accelerator pedal 1 side, and an accelerator extending from one end of the shaft portion 5a to the front side. It is composed of a front rod portion 5c extending laterally around the link bracket 6.

The extended end portion of the rear rod portion 5b is inserted into and engaged with the accelerator rod insertion portion 4 of the accelerator pedal 1, and the extended end portion of the front rod portion 5c operates an throttle valve (not shown) of the engine. It is connected to the cable 7. A return torsion spring 8 is wound around the shaft portion 5a. One end of the torsion spring 8 is hooked on the accelerator link bracket 6 side and the other end is hooked on the front rod portion 5c. And acts on the accelerator rod 5 in the counterclockwise direction in the figure, that is, in the direction of returning the accelerator pedal 1.

Therefore, when the accelerator pedal 1 is depressed, the rear rod portion that is in contact with the engaging surface of the accelerator rod insertion portion 4
5b is pushed, the rear rod portion 5b of the accelerator rod 5 pivots downward around the shaft portion 5a in a circular arc shape, the front rod portion 5c pulls the accelerator cable 7, and the throttle valve acts on the opening side.

As shown in FIG. 2, a convex surface 4a is formed on the engaging surface of the accelerator rod insertion portion 4 with the accelerator rod 5. The convex surface 4a is set in such a shape that the ratio of the amount of rotation of the accelerator rod 5 to the pedal depression amount from the initial depression of the accelerator pedal 1 to the middle period is large, and the ratio becomes approximately 1: 1 from the middle period to the latter period. There is. That is, the depression angle of the accelerator pedal 1 and the throttle valve opening are set so as to have the relationship shown in FIG.

Further, a collar 10 is attached to an engaging portion of the accelerator rod 5 which is inserted and engaged with the accelerator rod inserting portion 4 via a ball bearing 9 as shown in FIG. 3, whereby the collar 10 is engaged. It smoothly rolls with respect to the convex surface 4a which is the mating surface.

In FIG. 1, reference numeral 11 denotes a stopper bolt that regulates the maximum depression angle of the accelerator pedal 1, and is attached to a stopper bolt bracket 12 so that its position can be adjusted. A throttle cable 13 for warm-up operation is connected to a part of the front rod portion 5c of the accelerator rod 5.

The accelerator pedal device according to the present embodiment is configured as described above, and when the accelerator pedal 1 is not depressed, the collar of the tip portion of the accelerator rod tod 5 as shown in (a) of FIG. 10 is at a position away from the convex surface 4a of the accelerator rod insertion portion 4.

When the accelerator pedal 1 is depressed in this state, the accelerator rod 5 is rotated clockwise in the figure as described above, and the throttle valve is operated to the open side via the accelerator cable 7. As shown in FIG. 2 (b), the collar 10 rides on the convex surface 4a of the accelerator rod insertion portion 4 from the initial stage to the middle stage of the entire stroke when the pedal is depressed, which causes the throttle valve to suddenly open. . Figure 2 (b)
Shows the state where the collar 10 rides on the convex surface 4a, and in the comparative diagram of FIG. 4 with the conventional one, the throttle opening reaches nearly 50% when the depression angle of the accelerator pedal 1 is about 25%. The half-open state can be obtained at a time considerably earlier than the conventional case.

That is, it has a convex surface compared to the case of the conventional accelerator pedal.
The throttle valve will open earlier by the height of 4a. Since the collar 10 rolls on the flat surface of the convex surface 4a after riding on the convex surface 4a, thereafter, the pedal opening degree and the valve opening degree have a substantially linear relationship. Therefore, in the present embodiment, a large throttle opening can be obtained at a time when the pedal depression angle is early, so that it is possible to give a feeling that the vehicle speed increases despite the small depression. Although FIG. 2 (c) shows the maximum depression, the accelerator pedal 1
Indicates that the stroke end, that is, the maximum depression angle, is reached earlier by the height of the convex surface 4.

(Effect of the Invention) As described above in detail, in the accelerator pedal device of the present invention, the opening angle of the throttle valve is made larger than the ratio of the pedal depression amount at the initial depression of the accelerator pedal 1, which gives an impression to the driver. In other words, it is possible to give the impression that the ride is good even if the pedal is depressed. That is, by giving a throttle opening that is equal to or greater than the depression of the pedal at an early stage during pedal operation, the conventional rattling feeling is eliminated, and the pedal operation filling is improved. In addition, high-speed traveling becomes possible with a relatively shallow pedal depression angle.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an accelerator pedal device of the present invention, FIG. 2 is an explanatory view showing details of an accelerator rod insertion portion and its operation, and FIG. 3 is engagement of an accelerator rod with the accelerator rod insertion portion. FIG. 4 is a perspective view showing details of a portion, FIG. 4 is a graph showing a relationship between an accelerator pedal depression angle and a throttle valve opening in comparison with a conventional one, and FIG. 5 is a side view showing an example of a conventional accelerator pedal device. . 1 ... Accelerator pedal 4 ... Accelerator rod insertion part 4a ... Convex surface 5 ... Accelerator rod 7 ... Accelerator link bracket 9 ... Roller bearing 10 ... Color

Claims (1)

(57) [Scope of utility model registration request] 1. An organ-type accelerator pedal and one end inserted into and engaged with an accelerator rod insertion portion formed in the accelerator pedal, and in an arc shape centering on a specific point in conjunction with the depression operation of the accelerator pedal. An accelerator pedal device comprising a rotating accelerator rod and an accelerator cable for throttle operation that transmits the movement of the accelerator rod to a throttle valve, wherein the engagement surface of the accelerator rod insertion portion with the accelerator rod, An accelerator pedal device for a vehicle, wherein a convex surface is formed to increase a ratio of a rotation amount of an accelerator rod to a pedal depression angle from an initial stage to a middle stage of depression of the accelerator pedal.