JP3567074B2 - Accelerator lever device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is applied to, for example, a reach type forklift, and particularly relates to an improvement of an accelerator lever device provided on an operation panel of a driver's seat.
[0002]
[Prior art]
In general, the operation panel at the driver's seat of a reach-type forklift is equipped with three types of cargo handling levers (valve levers) that perform reach, lift, and tilt operations in addition to the accelerator lever that controls forward and backward movement. Have been. The accelerator lever is operated by a finger in principle, but is often operated simultaneously by a veteran using an arm or elbow on the hand side operating the cargo handling lever.
Conventionally, as an accelerator lever device, for example, those shown in FIGS. 5 and 6 are known.
The accelerator lever device 50 basically includes an accelerator unit 51, an accelerator lever 52 provided on the accelerator unit 51, and an accelerator stopper 53 provided on the accelerator unit 51 for restricting the accelerator lever 52 from tilting forward and backward. And a mounting bracket 54 provided on the accelerator unit 51 and mounted on the operation panel A side.
[0003]
[Problems to be solved by the invention]
However, in such a case, since a dedicated mounting bracket is provided on the accelerator unit and mounted on the operation panel side, there is a problem that the number of parts increases and the cost increases.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in order to solve the problem. An object of the present invention is to provide an accelerator lever device capable of reducing the number of parts and reducing the cost. To be.
[0004]
[Means for Solving the Problems]
The accelerator lever device of the present invention basically includes an accelerator unit, an accelerator lever provided on the accelerator unit and capable of tilting forward and backward, and an accelerator unit provided on the accelerator unit to regulate the forward and backward tilting of the accelerator lever and to the operation panel side. The feature lies in that it is composed of an accelerator stopper to be attached.
[0005]
When the accelerator lever is tilted forward from the upright neutral position, forward control is performed by the accelerator unit. When the forward tilt of the accelerator lever is maximized, a part of the accelerator lever abuts on the accelerator stopper, and further forward lean is regulated.
When the accelerator lever is tilted backward from the upright neutral position, the accelerator unit is controlled to retreat by the accelerator unit. When the backward tilt of the accelerator lever becomes maximum, a part of the accelerator lever abuts on the accelerator stopper, and further backward lean is regulated.
The accelerator unit is attached to the operation panel via an accelerator stopper.
Since the mounting is performed by using the existing accelerator stopper, the number of parts is reduced, and the cost can be reduced.
[0006]
The accelerator stopper is preferably mounted movably in the front-rear direction with respect to the operation panel side. With this configuration, the accelerator unit can be adjusted and moved in the front-rear direction with respect to the operation panel. As a result, it is possible to set the lever position optimal for the operator, and it is possible to perform a favorable lever operation.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional side view showing an attached state of an accelerator lever device of the present invention. FIG. 2 is a vertical sectional front view of FIG. FIG. 3 is a rear view showing only the accelerator lever device of FIG. FIG. 4 is an exploded perspective view of FIG.
[0008]
The main part of the accelerator lever device 1 includes an accelerator unit 2, an accelerator lever 3, and an accelerator stopper 4, and is applied to a reach type forklift.
[0009]
The reach-type forklift is provided with an operation panel A in a driver's seat. On the operation panel A, a mounting plate B is vertically provided in the front-rear direction (the left side is the front side in FIG. 1), and a slit C long in the front-rear direction is formed near the mounting plate B. The mounting plate B is formed with long holes D in the front and rear direction that are long in the front and rear direction.
[0010]
The accelerator unit 2 forms a basic part of the accelerator lever device 1, and in this example, a stepped disk-shaped body 5 and a shaft 6 provided at the center of the body 5 so as to be rotatable around a horizontal axis. A potentiometer 7 attached to the large diameter portion of the body 5 and having its rotating shaft connected to the shaft 6; and a return spring 8 externally mounted on the small diameter portion of the body 5 and constantly biasing the accelerator lever 3 to a vertical neutral position. A pin 9 provided on the body 5 for engaging one end of the return spring 8 and a pin 10 provided on the accelerator lever 3 for engaging the other end of the return spring 8.
[0011]
The accelerator lever 3 is provided on the accelerator unit 2 and can be tilted back and forth. In this example, the lower part is attached to the shaft 6 of the accelerator unit 2 and the upper half is inserted through the slit C of the operation panel A and It comprises a lever 11 to be protruded, an arc-shaped cover 12 fitted in the middle of the lever 11 to cover a part of the slit C, and a knob 13 detachably mounted on the upper part.
[0012]
The accelerator stopper 4 is provided on the accelerator unit 2 to limit the forward and backward tilting of the accelerator lever 3 and is attached to the operation panel A side. In this example, the accelerator stopper 4 is attached to both sides of the body 5 of the accelerator unit 2 and The lower part 3 has a pair of front and rear parts having a horizontal columnar shape that can be fitted, and is attached to the mounting plate B of the operation panel A by a fastener 14 so as to be movable in the front and rear direction.
[0013]
The fastener 14 includes a screw hole 15 screwed into each accelerator stopper 4, a bolt 16 inserted into the long hole D of the mounting plate B and screwed into the screw hole 15, and a washer 17 inserted through the screw hole 15. Consists of
[0014]
Next, the operation will be described based on such a configuration.
As shown by the solid line in FIG. 1, the accelerator lever 3 is always kept in an upright neutral position by the return spring 8 of the accelerator unit 2.
When the accelerator lever 3 is tilted forward from such a neutral position, the shaft 6 of the accelerator unit 2 is rotated counterclockwise in FIG. 1 to change the resistance value of the potentiometer 7 connected thereto. It is controlled forward depending on things. As shown by the chain line in FIG. 1, when the forward tilt of the accelerator lever 3 is maximized, the lower portion of the accelerator lever 3 abuts against the rear accelerator stopper 4, and further forward lean is restricted.
When the accelerator lever 3 is tilted backward from the neutral position, the shaft 6 of the accelerator unit 2 is rotated clockwise in FIG. 1 and retreats by changing the resistance value of the potentiometer 7 connected thereto. Controlled. As shown by the chain line in FIG. 1, when the rearward inclination of the accelerator lever 3 is maximized, the lower portion of the accelerator lever 3 abuts on the front accelerator stopper 4, and further rearward inclination is restricted.
The accelerator unit 2 is attached to a mounting plate B of an operation panel A via a front and rear accelerator stopper 4 by a fastener 14 so as to be adjustable in the front-rear direction.
Since the accelerator unit 2 is mounted on the operation panel A by using the existing accelerator stopper 4 that regulates the forward and backward tilting of the accelerator lever 3, the number of parts can be reduced and the cost can be reduced.
[0015]
Since the accelerator unit 2 can be adjusted and moved steplessly with respect to the operation panel A side, fine adjustment can be performed as compared with a stepwise adjustable movement described in, for example, JP-A-7-137999. An optimum lever position for the operator can be obtained, and smooth lever operation can be performed.
In particular, when the accelerator lever 3 and another cargo handling lever are simultaneously operated, their relative positions differ depending on the individual operator, and if the lever position is at least a little bad, smooth lever operation cannot be performed. Difficulties can be solved immediately.
[0016]
In the above example, the accelerator stopper 4 is mounted so that it can be adjusted and moved steplessly with respect to the operation panel A side. However, the present invention is not limited to this. For example, as described in Japanese Patent Application Laid-Open No. 7-137999, It may be mounted so that it can be adjusted and moved stepwise.
In the above example, the fastener 14 is configured by the screw hole 15 and the bolt 16, but is not limited thereto. For example, the fastener 14 may be formed on the accelerator stopper 4 and inserted into the elongated hole D of the mounting plate B. And a nut or the like screwed to this .
[0017]
【The invention's effect】
As described above, according to the present invention, the following excellent effects can be obtained.
(1) The accelerator unit is composed of an accelerator unit, an accelerator lever, and an accelerator stopper. In particular, the accelerator unit is attached to the operation panel by using an accelerator stopper that regulates the forward and backward tilting of the accelerator lever. Therefore, it is possible to reduce the number of parts and reduce the cost.
(2) The accelerator unit is mounted on the operation panel side by using an accelerator stopper that regulates the forward and backward tilting of the accelerator lever, and the so-called accelerator stopper is also used. Can be small.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional side view showing an attached state of an accelerator lever device of the present invention.
FIG. 2 is a longitudinal sectional front view of FIG.
FIG. 3 is a rear view showing only the accelerator lever device of FIG. 1;
FIG. 4 is an exploded perspective view of FIG. 1;
FIG. 5 is a vertical sectional side view showing a conventional accelerator lever device.
FIG. 6 is a vertical sectional front view of FIG. 5;
[Explanation of symbols]
1, 50: accelerator lever device, 2, 51: accelerator unit, 3, 53: accelerator lever, 4, 53: accelerator stopper, 5: body, 6: shaft, 7: potentiometer, 8: return spring, 9, 10 ... Pin, 11: lever, 12: cover, 13: knob, 14: fastener, 15: screw hole, 16: bolt, 17: washer, 54: mounting bracket, A: operation panel, B: mounting plate, C: slit , D ... a long hole.

Claims (2)

An accelerator unit including a body, a shaft rotatably provided on the body, and a potentiometer attached to the body and having a rotation axis connected to the shaft; an accelerator lever attached to the shaft of the accelerator unit and capable of tilting forward and backward; An accelerator lever device, comprising: an accelerator stopper provided on a body of an accelerator unit , for restricting forward and backward tilting of an accelerator lever, and being attached to a mounting plate of an operation panel by a fastener . The accelerator lever device according to claim 1, wherein the accelerator stopper is attached to be movable in the front-rear direction with respect to the operation panel side.

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