JP2701606B2 - Accelerator pedal device for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accelerator pedal device for a vehicle.

[0002]

2. Description of the Related Art In an automatic vehicle equipped with an electromagnetic clutch, a pedal switch for detecting the depression of a pedal lever to perform intermittent control of clutch current and a pedal opening for changing a transmission gear ratio. An accelerator pedal device provided with a switch such as a switch is used.

As such an accelerator pedal device with a switch, as disclosed in Japanese Utility Model Publication No. Sho 59-21057, for example, an accelerator wire is fixed to the upper end of an upper lever which is arranged coaxially with the pedal lever. ,
A predetermined gap is set between the switch actuating piece formed at the upper end of the upper lever and the upper end of the switch lever integrally fixed to the pedal lever, and at the initial stage of depression of the pedal lever, only the switch lever is in the range of the gap. Is known to rotate a pedal switch to generate an operation signal of an electromagnetic clutch before a throttle opening operation.

[0004]

The gap between the above-mentioned switch operating piece and the upper end of the switch lever requires high precision control in order to accurately operate the pedal switch, and the gap is relatively small. Is set. For this reason, when the driver steps on the pedal lever,
It is desirable that the pedal lever does not chatter even when the vehicle body is vibrated.

Accordingly, the present invention is to provide an accelerator pedal device for a vehicle, which can reliably suppress chattering of a pedal lever with a simple structure and can further improve reliability and quality.

[0006]

A pedal lever rotatably mounted on a vehicle body panel via a pedal bracket pivotally supported at an intermediate portion of the lever and biased in a throttle releasing direction, and a lower end of the pedal lever is turned. While pivotally supported coaxially with the fulcrum, the upper end is anchored with an accelerator wire,
A switch lever that abuts the upper end of the pedal lever on the rear surface of the upper end, and that is restricted in rotation by a stopper fixed to the vehicle body panel; the switch lever has a required distance from the rear surface of the upper end of the pedal switch. In a structure in which a switch pressed by the upper end of the pedal switch lever is provided,
A damper member for suppressing the movement of the pedal lever is provided between the switch lever and the switch mounting portion.

[0007]

When the pedal lever is depressed, only the pedal lever rotates with the elastic displacement of the damper member within the gap between the upper rear surface of the pedal lever and the switch in the initial stage of the depression, and the throttle is pulled by the accelerator pedal. Activate the switch before opening. When the pedal lever is further depressed beyond the gap, the switch lever rotates integrally with the pedal lever via the switch provided portion, and pulls the accelerator wire to open the throttle. When the driver depresses the pedal lever, the damper member is restored at the same time as the pedal lever returns, and chattering of the pedal lever is suppressed by the elasticity of the damper member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a pedal pad 2 at the lower end.
A lever pin 3 is fixed to an intermediate portion of the pedal lever, and a pedal bracket 4 is rotatably mounted on the lever pin 3. The pedal bracket 4 is attached to a dash panel 5 which is a vehicle body panel. It is fixed to the fixed pedal mount bracket 6 with bolts and nuts.

A pedal return spring 7 mounted on the lever pin 3 is mounted between the pedal lever 1 and the pedal bracket 4 to rotate the pedal lever 1 in the throttle release direction (counterclockwise direction in FIG. 1). Moving and energizing.

At the position above the position where the pedal mount bracket 6 is disposed on the dash panel 5, a stopper bracket 9 having a stopper 8 bent at the lower wall edge is fixedly provided, and the dash panel 5 and this stopper are provided. An accelerator wire 10 is routed through the bracket 9.

A switch lever 11 has a lower end pivotally supported by the lever pin 3 and has a bent upper end formed with a stopper piece 12 which is in contact with the stopper 8. The end of the accelerator wire 10 is anchored, and the upper end of the pedal lever 1 is abutted against the back surface of the stopper piece 12. Further, a pedal switch 13 as a switch is disposed at a position corresponding to the upper end rear surface of the pedal lever 1 of the switch lever 11 with a relatively small predetermined gap a. 13a is depressed to operate the pedal switch 13.

The pedal switch 13 is covered with a casing made of a hard resin or the like and is fixed to the switch lever 11 with screws. The switch lever 11 is rotated integrally with the upper end of the pedal lever 1 by contact and engagement with the pedal switch 13. It is possible to do.

A damper member 14 for suppressing the recoil of the pedal lever 1 is provided between the rear surface of the upper end of the pedal lever 1 and the portion of the switch lever 11 where the pedal switch 13 is provided.
Is arranged. In this embodiment, the switch lever 1
1 is formed by bending a damper mounting piece 15 and a damper member 14 is mounted on the damper mounting piece 15. Damper member 14
Slidably penetrates the damper mounting piece 15 on the back surface, and
The pedal lever 1 has a rod 17 that is arranged so as not to come off.
And a spring 17 mounted between the holding piece 16 and the damper mounting piece 15 to press the holding piece 16 against the back surface of the pedal lever 1. However, the present invention is not limited to this.

According to the structure of the embodiment described above, when the pedal lever 1 is depressed, the pedal lever 1 is initially depressed.
Only the pedal lever 1 rotates with the elastic deformation of the damper member 14 in the range of the gap a between the upper rear surface of the upper end and the pedal switch 13, that is, the spring 18 is moved between the pressing piece 16 and the damper mounting piece 15. The pedal lever 1 is rotated with the rod 17 being retracted,
Pedal switch 1 before the throttle is opened by towing
Activate 3 When the pedal lever 1 is further depressed beyond the gap a, the pedal switch 13 is
Is pressed, the switch lever 11 rotates integrally with the pedal lever 1, and the accelerator wire 10 is pulled to open the throttle.

When the driver depresses the pedal lever 1, the pedal lever 1 moves back and the switch lever 11
Together with the stopper 8, but at this time, the damper member 1
The spring 18 is also restored to keep the pressing piece 16 constantly pressed against the back surface of the pedal lever 1. As a result, the so-called chattering in which the pedal lever 1 moves toward the pedal switch 13 due to the recoil that comes into contact with the stopper 8 is suppressed by the damper member, and the malfunction of the pedal switch 13 is prevented.

Even when the pedal lever 1 vibrates due to vehicle vibration when the pedal lever 1 is not depressed, such as when the vehicle is parked or stopped, the spring 18 is attached to the rear surface of the upper end of the pedal lever 1 as described above. Since the pressing piece 16 is in elastic contact with the force, chattering due to the vehicle body vibration of the pedal lever 1 is suppressed.

[0018]

As described above, according to the present invention, chattering of the pedal lever can be reliably suppressed by the damper member even when the driver depresses the pedal lever.
The switch does not malfunction at all, and the reliability and quality can be further improved.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pedal lever, 4 ... Pedal bracket, 5 ... Body panel, 8 ... Stopper, 10 ... Accel wire, 11 ... Switch lever, 13 ... Switch, 14 ... Damper member.

Claims (1)

(57) [Claims] 1. A pedal lever which is rotatably mounted on a vehicle body panel via a pedal bracket pivotally supported at a lever intermediate portion, and which is biased in a throttle releasing direction, and a lower end of which is coaxial with a rotation fulcrum of the pedal lever. A switch lever that is rotatably supported on the upper side, anchors an accelerator wire at the upper end, abuts the upper end of the pedal lever against the back of the upper end, and is restricted in rotation by a stopper fixed to the vehicle body panel. Wherein the switch lever is provided with a switch pressed by the upper end of the pedal lever at a predetermined distance from the rear surface of the upper end of the pedal lever. An accelerator pedal device for a vehicle, wherein a damper member for suppressing the movement of the pedal lever is provided between the lever and the switch mounting portion.