JPH04314627A - Clutch pedal device - Google Patents

Abstract

PURPOSE:To provide a clutch pedal device having good operability. CONSTITUTION:A clutch pedal arm 11 is pivotally supported around a horizontal shaft 12 in such a manner as to be capable of oscillating, and a mounting plate 13 having an oscillating beam 19 connected to the control rod 18 of an inching valve 17 is provided in such a manner as to be movable and adjustable in the operating direction of the control rod 18. The base part of the clutch pedal arm 11 is connected to the middle part of the oscillating beam 19, a return spring 20 energizing the clutch pedal arm 11 in the opposite direction to the operation is provided, and a stopper 21 regulating the clutch pedal arm 11 in the opposite directional position to the operation.

Description

[Detailed description of the invention]

0001

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

0002

[Prior Art] As shown in FIG. 8, a conventional clutch pedal device has a pivot shaft 2 on the bottom surface of a plate-shaped clutch pedal 1.
An interlocking rod 3 and a fork 4 are swingably attached to the vehicle body at the center, and the fork 4 is connected to an inching valve 6.
The control rod 7 is connected to the control rod 7 .

0003

[Problems to be Solved by the Invention] Due to space limitations, the link ratio between the interlocking rod 3 and the fork 4 cannot be made large, resulting in poor operability of the clutch and problems with inching operations. SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a clutch pedal device with good operability.

0004

[Means for Solving the Problems] The technical means of the present invention for solving this technical problem is to pivot the clutch pedal arm 11 around the horizontal shaft 12 so as to be able to swing freely, and the inching valve 1
A mounting plate 13 having a swinging rod 19 connected to the control rod 18 of 7 is provided so as to be movable and adjustable in the operating direction of the control rod 18, and the base of the clutch pedal arm 11 is connected to the swinging rod 19.
A return spring 20 is connected to a midway portion of the clutch pedal arm 9 and biases the clutch pedal arm 11 in the opposite direction to the direction of depression, and a stopper 21 is provided to restrict the clutch pedal arm 11 at a position opposite to the direction of depression. At the point.

[0005]

[Operation] With the stopper 21 in contact with the clutch pedal arm 11, by loosening the bolt and nut 16 and moving the mounting plate 13 within the range of the elongated hole 15, for example, the stopper on the pressure increasing side can be adjusted accurately. When the clutch pedal arm 11 is in the position shown in FIG. 1, the hydraulic clutch is engaged. When the clutch pedal arm 11 is depressed, the control rod 18 is pulled outward in conjunction with this.
The valve body 26 is moved to the oil draining position shown in FIG. 5 and balanced by the back pressure of the forward hydraulic clutch 2 acting on the second spring 28 and the pressure receiving part 36.

[0006]

[Embodiment] The present invention will be explained below according to the illustrated embodiment. In FIG. 1, 11 is a clutch pedal arm;
It is pivotably supported around a horizontal axis 12. Reference numeral 13 denotes a mounting plate, which is attached to the support plate 14 with bolts and nuts 16 so as to be freely adjustable in the longitudinal direction within the range of the elongated hole 15, as shown in FIG. Reference numeral 17 denotes an inching valve, which has a control rod 18. A swinging rod 19 is pivotally supported at the front end of the mounting plate 13 so as to be swingable back and forth, and its upper end is connected to the control rod 18. A return spring 20 biases the clutch pedal arm 11 rearward and upward. Reference numeral 21 denotes a vertically adjustable stopper, which restricts upward swinging of the clutch pedal arm 11. A connecting rod 22 connects the base of the clutch pedal arm 11 and the midway portion of the swing rod 19.

As shown in FIG. 3, the inching valve 17 has a valve body 24 slidably fitted into the valve body 24 via a fixed sleeve 25, and a valve body 26 that acts on both sides of the valve body 26. A first spring 27 and a second spring 28 are fitted inside. The first spring 27 is composed of an inner and outer double spring, and is interposed between the valve body 26 and the control rod 29, and the control rod 29 is slidably inserted into the lid 30 attached to the valve body 24. The outer end of the clutch pedal 23 is interlocked with the clutch pedal 23. The second spring 28 is fitted onto the guide rod 32 between the valve body 26 and a lid 31 attached to the valve body 24.

The valve body 26 has a circumferential groove 33, first and second notches 3
4, 35 and an internal pressure receiving part 36, the control rod 29
4, the oil drain position shown in FIG. 5, and the neutral position shown in FIG. 3 via the first spring 27. This valve body 26 is connected to the pump port 3 in the refueling position.
9 is connected to the clutch port 40 through the hole 37, the circumferential groove 33, the second notch 35, and the hole 38, and in the oil draining position, the clutch port 40 is connected to the hole 38, the circumferential groove 33, and the first notch 34.
It is connected to the drain port 41 through the drain port 41, and furthermore, in the neutral position, the ports 39, 40, and 41 are disconnected from each other. In addition, valve body 2
6, the back pressure of the hydraulic clutch acting on the pressure receiving part 36, the second spring 28, and the first spring 27 are balanced so that the oil drain position and the neutral position are maintained.

FIGS. 6 and 7 show another embodiment in which a clutch pedal arm 11 is fitted with a rectangular cylindrical pedal member 46 slidably up and down on the upper end of an arm body 45, and these pedal members 46 and the arm body 45 through the elongated hole 47 and the through hole 48, and the pedal member 46 is made vertically movable relative to the arm body 45 within the range of the elongated hole 47.
A spring 50 is provided within the pedal member 46, and the spring 50 urges the pedal member 46 upward with respect to the arm body 45.

0010

According to the present invention, the mounting plate 13 pivots the clutch pedal arm 11 around the horizontal axis 12 so as to be able to freely swing, and has the swinging rod 19 connected to the control rod 18 of the inching valve 17. The control rod 18 is provided so as to be movable and adjustable in the operating direction, and the base of the clutch pedal arm 11 is connected to the midway part of the swinging rod 19, so the link ratio of the clutch pedal arm 11 can be increased, resulting in high precision. can operate the control rod 18 of the inching valve 17,
Operability is greatly improved. Moreover, the control rod 18 of the inching valve 17 can be reliably set at a predetermined position by adjusting the movement of the mounting plate 13, and the practical effect thereof is significant.

[Brief explanation of drawings]

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

FIG. 2 is a sectional view taken along the line AA in FIG. 1;

FIG. 3 is a side sectional view of the inching valve.

FIG. 4 is a side sectional view of the inching valve.

FIG. 5 is a side sectional view of the inching valve.

FIG. 6 is a side view showing another embodiment.

FIG. 7 is a front view of the upper portion of the pedal.

FIG. 8 is a configuration diagram showing a conventional example.

[Explanation of symbols]

11 Clutch pedal arm 12 Horizontal axis 13 Mounting plate 17 Inching valve 18 Control rod 19 Swinging rod 20 Return spring 21 Stopper

Claims (1)

[Claims] Claim 1: A clutch pedal arm (11) is swingably supported around a horizontal axis (12), and an inching valve (
A swinging rod (19) connected to a control rod (18) of
) is provided so as to be movable and adjustable in the operating direction of the control rod (18), and the base of the clutch pedal arm (11) is connected to the midway part of the swinging rod (19).
A return spring (20) is provided that biases the clutch pedal arm (11) in the direction opposite to the direction of depression, and a stopper (21) is provided that restricts the clutch pedal arm (11) in a position in the direction opposite to the direction of depression. A clutch pedal device characterized by: