JPH07331703A - Operation lever device of industrial vehicle - Google Patents

Abstract

PURPOSE:To easily adjust the positions of operation levers by providing a base plate movable front and rear on a pedestal part, fitting the operation levers to the base plate, and providing a fixing tool fixing the base plate to the pedestal part. CONSTITUTION:An operator gotten in an operator cab adjusts an operator's seat 4 to the optimum position according to his physique, and tilts a steering handle 5 up and down so as to adjust it up to the optimum position. Next the operator pushes/pulls arm rests 26 by hands so as to slide a base plate 16 in the front and rear directions up to the optimum position, tightens a fixing bolt 25 previously loosened, fixes the base plate 16 to a control box 11 while sandwiching it with a main plate part 12 and a supporting plate 15, and hence adjusts boom levers 7, bucket levers 9, and the arm rests 26 to the optimum positions according to the operator. Hereby, the positions of the operation levers can be easily adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating lever device provided in industrial vehicles such as wheel loaders and forklifts.

[0002]

2. Description of the Related Art Conventionally, a driver's cab such as a wheel loader has a slide type driver's seat whose position can be adjusted in the front-rear direction,
A tilt-type steering handle whose tilt angle can be adjusted in the vertical direction, a boom lever for moving the boom up and down, and a bucket lever for tilting the bucket are provided.

According to this, the driver shifts the driver's seat forward and backward to adjust to an optimum position and tilts the steering handle in the vertical direction according to his / her physique to adjust to the optimum position.

[0004]

However, in the above-mentioned conventional type, when the driver's seat is moved back and forth to be adjusted to the optimum position, the boom lever and the bucket lever are too close to or too far from the driver's seat. , There was a problem that it was difficult to operate each lever.

The present invention solves the above problems, and an object thereof is to provide an operating lever device for an industrial vehicle in which the position of the operating lever can be adjusted.

[0006]

In order to solve the above problems, an operating lever device for an industrial vehicle according to the present invention is provided with a pedestal portion for mounting an operating lever on a vehicle body, and the pedestal portion is movable back and forth. A plate is provided, an operation lever is attached to the base plate, and a fixture for fixing the base plate to the pedestal portion is provided.

[0007]

According to the above construction, after the base plate is moved to the optimum position in the front-rear direction, the base plate is fixed to the pedestal portion using the fixing tool. As a result, the operating lever can be adjusted to the optimum position according to the driver. Therefore, even when the driver's seat is moved back and forth to be adjusted to the optimum position, the operation lever can be moved to the optimum position according to the position of the driver's seat, and the operation lever can be easily operated.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 7, a wheel loader 1 is an example of an industrial vehicle, and a vehicle body 2 has a driver's cab 3
Is provided. As shown in FIGS. 5 and 6, the cab 3
Inside is a slide-type driver's seat 4 whose position can be adjusted in the front-rear direction, a tilt-type steering handle 5 whose tilt angle can be adjusted vertically, and a boom lever 7 for raising and lowering the boom 6 (an example of an operation lever). Further, a bucket lever 9 (an example of an operation lever) for inclining the bucket 8 is provided.

The boom lever 7 and the bucket lever 9 are mounted in the cab 3 with the following structure. That is, as shown in FIGS. 1 to 4, a control box 11, which is an example of a pedestal portion, is provided on the right side of the driver's seat 4, and a rectangular opening 13 is formed in an upper plate portion 12 of the control box 11. Are formed. Further, the upper plate portion 12 is provided on the upper part of the inner surface of both side plate portions 14 of the control box 11, respectively.
A plurality of support plates 15 facing each other on the lower surface of are attached to the front and rear at a plurality of locations. A base plate 16 covering the opening 13 is fitted between the support plate 15 and the upper plate 12 so as to be movable back and forth.

As shown in FIG. 4, the base plate 16 includes:
The boom lever 7 and the bucket lever 9 are arranged side by side in the left-right direction and are attached so as to project upward,
A boom pilot valve 17, which is switched by the boom lever 7, and a bucket pilot valve 18, which is switched by the bucket lever 9, are provided on the lower surface side of the control valve 16. The pilot valves 17 and 18 are provided inside the control box 11. It is stored. The boom pilot valve 17 and the bucket pilot valve 18 are connected to the main control valve 20 via flexible tubes 19, respectively. This main control valve 20 switches the hydraulic circuit to control the boom 6 and the bucket 8.

As shown in FIGS. 2 and 4, elongated holes 22 are formed in the left and right edges and the central portion of the base plate 16 in the front-rear direction, and above the elongated holes 22. A pair of left and right upper bolt holes 23 formed in the upper plate portion 12 of the control box 11 are located, and below the elongated hole 22, a lower bolt hole 24 formed in the pair of left and right support plates 15 in the center is located. is doing. Female threads are formed in these lower bolt holes 24. As an example of a fixture for fixing the base plate 16 to the control box 11, there is provided a fixing bolt 25 which is inserted into the upper bolt hole 23 and the elongated hole 22 from above and screwed into the lower bolt hole 24. In addition, the upper surface of the base plate 16 has an armrest 26 located behind the levers 7 and 9.
Is provided.

The operation of the above structure will be described below.
As shown in FIG. 6, the driver who gets into the cab 3 shifts the driver's seat 4 back and forth to adjust to an optimum position according to his / her physique, and tilts the steering handle 5 vertically to optimize Adjust to a proper position. After that, FIG.
As shown in Fig. 2, the driver pushes and pulls the armrest 26 by hand to slide the base plate 16 back and forth to the optimum position, and then tightens the previously fixed loosening bolt 25. The plate 16 includes an upper plate portion 12 and a support plate 15.
It is sandwiched between and and fixed to the control box 11. As a result, the boom lever 7, the bucket lever 9, and the armrest 26 can be adjusted to the optimum positions according to the driver.

Therefore, as shown in FIG. 6, for example, when the boom lever 7 and the bucket lever 9 are moved too far from the driver's seat 4 because the driver's seat 4 is displaced rearward, the fixing bolt 25 is loosened and the base plate 16 is removed. Can be slid backwards. Further, when the boom lever 7 and the bucket lever 9 come too close to the driver's seat 4 because the driver's seat 4 is shifted forward, the fixing bolt 25 may be loosened and the base plate 16 may be slid forward. In addition, the boom lever 7
Since the armrest 26 as well as the bucket lever 9 can be adjusted to an optimum position according to the driver,
It is possible to reduce the load on the arm (right arm) of the driver who operates the lever.

In the above embodiment, the wheel loader 1 is given as an example of the industrial vehicle, but the invention is not limited to this, and a forklift or a skid steer loader may be used.

[0015]

As described above, according to the present invention, the base plate is moved to the optimum position in the front-rear direction, and then the base plate is fixed to the pedestal portion using the fixing tool. As a result, the operating lever can be adjusted to the optimum position according to the driver. Therefore, even when the driver's seat is moved back and forth to be adjusted to the optimum position, the operation lever can be moved to the optimum position according to the position of the driver's seat, and the operation lever can be easily operated.

[Brief description of drawings]

FIG. 1 is a perspective view of an operating lever device according to an embodiment of the present invention.

FIG. 2 is a partially cutaway plan view of an operation lever device.

FIG. 3 is a vertical sectional view of the operating lever device as viewed from the side.

FIG. 4 is a vertical cross-sectional view of the operating lever device seen from the rear.

FIG. 5 is a schematic plan view of the inside of a cab.

FIG. 6 is a schematic side view of the inside of a driver's cab.

FIG. 7 is a side view of the wheel loader.

[Explanation of symbols]

 1 Wheel Loader (Industrial Vehicle) 2 Vehicle Body 7 Boom Lever (Operating Lever) 9 Bucket Lever (Operating Lever) 11 Control Box (Pedestal) 16 Base Plate 25 Fixing Bolt (Fixing Tool)

Claims (1)

[Claims] 1. A vehicle body is provided with a pedestal portion for mounting an operation lever, a pedestal portion is provided with a base plate that can be moved back and forth, and an operation lever is attached to the base plate to fix the base plate to the pedestal portion. An operating lever device for an industrial vehicle, which is provided with a tool.