JPH0544500A - Accelerator pedal device for vehicle - Google Patents

Abstract

PURPOSE:To suppress chattering of a pedal lever and prevent erroneous operation of switch. CONSTITUTION:The lower end of a switch lever 11 is supported on a lever pin 3 of a pedal lever 1, a stopper piece 12 of the switch lever 11 is made in contact with a stopper 8 of a dash panel 5, and the upper end of the pedal lever 1 is made in contact with the back of the stopper piece 12. A pedal switch 13 is provided at the position which corresponds to the upper end and back of the pedal lever 1 of the switch lever 11. A damper member 14 which consists of a pressing piece 16 which passes a rod 17 through a damper mounting piece 15 and prevents it from coming off and a spring 18 which presses the pressing piece 16 on the pedal lever 1 is provided on the damper mounting piece 15.

Description

Detailed Description of the Invention

[0001]

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

[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 control the clutch current on and off, and a pedal opening for changing the transmission gear ratio are used. An accelerator pedal device equipped with a switch such as a switch is used.

As an accelerator pedal device of the type with such a switch, for example, as disclosed in Japanese Utility Model Publication No. 59-21057, an accelerator wire is anchored to the upper end of an upper lever arranged coaxially with the pedal lever. ,
A predetermined gap is set between the switch operating piece formed on the upper end of the upper lever and the upper end of the switch lever that is integrally fixed to the pedal lever. It is known that the pedal rotates to operate the pedal switch to generate an operation signal of the electromagnetic clutch before the opening operation of the throttle.

[0004]

The gap between the above-mentioned switch actuating piece and the upper end of the switch lever is required to have high accuracy control in order to accurately control the operation timing of the pedal switch, and the gap is relatively small. It is set. Therefore, when the driver depresses the pedal lever,
It is desirable that the pedal lever does not chatter due to vehicle body vibration.

Therefore, the present invention provides an accelerator pedal device for a vehicle, which can surely suppress chattering of a pedal lever with a simple structure and can further improve reliability and a sense of quality.

[0006]

A pedal lever rotatably mounted on a vehicle body panel via a pedal bracket pivotally supported at a lever intermediate portion and urged in a throttle release direction, and a lower end of the pedal lever being rotated. The shaft is rotatably supported coaxially with the fulcrum, and the accelerator wire is anchored at the upper end,
A switch lever, which is in contact with the upper end of the pedal lever on the rear surface of the upper end and whose rotation is regulated by a stopper fixed to the vehicle body panel, is provided at a required distance from the upper rear surface of the pedal switch. In a structure in which a switch that is pressed by the upper end of the pedal switch lever is provided, a rear surface of the upper end of the pedal lever and
A damper member that suppresses the free movement of the pedal lever is arranged between the switch lever and the switch arrangement portion.

[0007]

[Function] When the pedal lever is depressed, only the pedal lever rotates with elastic displacement of the damper member within the gap range between the upper rear surface of the pedal lever and the switch in the initial stage of depression, and the throttle is pulled by the accelerator pedal. The switch is operated before the opening operation. When the pedal lever is further depressed beyond the gap, the switch lever rotates together with the pedal lever via the switch arrangement portion, pulls the accelerator wire and opens the throttle. When the driver depresses the pedal lever, the damper member is restored at the same time as the pedal lever returns, and the elasticity of the damper member suppresses chattering of the pedal lever.

[0008]

An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, 1 is a pedal pad 2 at the lower end.
A lever lever 3 is attached to the pedal lever 3, and a lever pin 3 is fixed to the middle portion of the pedal lever 4. A pedal bracket 4 is rotatably attached to the lever pin 3, and 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.

Between the pedal lever 1 and the pedal bracket 4, a pedal return spring 7 mounted on the lever pin 3 is elastically mounted to rotate the pedal lever 1 in the throttle release direction (counterclockwise direction in FIG. 1). It is moving and energized.

A stopper bracket 9 formed by bending a stopper 8 at the edge of the lower wall is fixedly provided at a position above the portion where the pedal mount bracket 6 is arranged on the dash panel 5, and the dash panel 5 and this stopper are fixed. An accelerator wire 10 is routed through the bracket 9.

Reference numeral 11 denotes a switch lever whose lower end is rotatably supported by the lever pin 3, and a stopper piece 12 that abuts against the stopper 8 is bent and formed at the upper end thereof, and an upper portion of the stopper piece 12 is formed. The end of the accelerator wire 10 is anchored, and the upper end of the pedal lever 1 is in contact with the back surface of the stopper piece 12. Further, a pedal switch 13 as a switch is arranged at a position corresponding to the rear surface of the upper end of the pedal lever 1 of the switch lever 11, and a relatively small predetermined gap a is arranged, so that the rear surface of the pedal lever 1 is provided with an actuator. 13a is pressed to operate the pedal switch 13.

The pedal switch 13 is covered with a casing made of hard resin or the like and fixed to the switch lever 11 with a screw, and the switch lever 11 is integrally rotated by abutting and engaging the upper end of the pedal lever 1 and the pedal switch 13. Is ready for you.

A damper member 14 for suppressing reaction of the pedal lever 1 is provided between the rear surface of the upper end of the pedal lever 1 and a portion of the switch lever 11 where the pedal switch 13 is disposed.
Is provided. In this embodiment, the switch lever 1
A damper mounting piece 15 is formed by bending on 1 and the damper member 14 is mounted on the damper mounting piece 15. Damper member 14
Penetrates the damper mounting piece 15 on the back side slidably, and
It has a rod 17 which is arranged so as not to come off, and has a pedal lever 1
It is composed of a presser piece 16 that abuts against the back surface of the pedal and a spring 17 that is elastically mounted between the presser piece 16 and the damper mounting piece 15 to press the presser piece 16 against the back surface of the pedal lever 1. It is not limited to.

According to the structure of the above embodiment, when the pedal lever 1 is depressed, the pedal lever 1 is initially depressed.
Only the pedal lever 1 rotates within the range of a gap a between the upper rear surface of the pedal switch 13 and the pedal switch 13 with elastic deformation of the damper member 14, that is, the spring 18 is interposed between the pressing piece 16 and the damper mounting piece 15. When the pedal wire 1 is compressed, the pedal lever 1 rotates with the backward movement of the rod 17,
Before opening the throttle by pulling 0, pedal switch 1
Turn on 3. When the pedal lever 1 is further depressed beyond the gap a, the pedal switch 1 is pressed by the pedal lever 1
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 returns and the switch lever 11
Abuts the stopper 8 together with the damper member 1 at this time.
The spring 18 of No. 4 is also restored to keep the pressing piece 16 constantly pressed against the back surface of the pedal lever 1. As a result, so-called chattering in which the pedal lever 1 urges against the stopper 8 to move toward the pedal switch 13 side is suppressed by this damper member, and malfunction of the pedal switch 13 is prevented.

Further, even when the pedal lever 1 tends to vibrate due to vehicle body vibrations when the pedal lever 1 is not depressed, such as when the vehicle is parked or stopped, as described above, the spring 18 is provided on the rear surface of the upper end of the pedal lever 1. Since the pressing piece 16 is elastically contacted by force, chattering due to 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.
There is no malfunction of the switch, and reliability and a sense of quality can be further improved.

[Brief description of drawings]

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

[Explanation of symbols]

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

Claims (1)

[Claims] 1. A pedal lever rotatably mounted on a vehicle body panel via a pedal bracket pivotally supported at an intermediate portion of the lever and urged in a throttle release direction, and a lower end thereof is coaxial with a pivot fulcrum of the pedal lever. A switch lever pivotally supported on the upper side, an accelerator wire is anchored on the upper end, the upper end of the pedal lever is abutted against the rear surface of the upper end, and the rotation is restricted by a stopper fixed to the vehicle body panel. The switch lever is provided with a switch that is pressed by the upper end of the pedal lever at a required distance from the upper back surface of the pedal lever, and An accelerator pedal device for a vehicle, wherein a damper member for suppressing a free movement of a pedal lever is arranged between the lever and a switch arrangement portion.