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Operation lever lock device

A technology of locking devices and operating levers, applied in lifting devices, fluid pressure actuating devices, transportation and packaging, etc., can solve problems such as restrictions, achieve the effect of reducing the number of parts, ensuring forward vision, and good forward vision

Inactive Publication Date: 2013-07-03
KOMATSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the lever lock device configured as described above, when the pin is inserted into the hole of the slider, the movement of the slider is restricted, and the movement of the operation rod connected via the link is also restricted.

Method used

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Examples

Experimental program
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Embodiment Construction

[0026] Hereinafter, preferred embodiments of the operating lever locking device of the present invention will be described in detail with reference to the drawings.

[0027] figure 1 and figure 2 Main parts of a forklift to which the lever lock device according to the embodiment of the present invention is applied are shown. The forklift illustrated here is provided with a plurality of operating levers 10 and a plurality of hydraulic control valves 20 to constitute a cargo loading and unloading operation unit 1. By operating the operating levers 10, the hydraulic control valves 20 are switched, and the corresponding hydraulic cylinders ( (not shown) expand and contract as appropriate, thereby performing desired loading and unloading operations. Although not shown, the forklift illustrated in this embodiment includes: a mast provided at the front end of the vehicle; a rear frame movably arranged with respect to the mast; Comes with a pair of forks.

[0028] The forklift is...

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PUM

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Abstract

An operation lever lock device reliably prevents unintended movement of a fork without obstructing a forward field of view. The valve input section (22) of a hydraulic control valve (20) disposed below a floor panel (FL) and a corresponding operation lever (10) are coordinated with each other by a link member (60), and a hydraulic control valve (20) is moved by moving the link member (60) in the vertical direction through the operation lever (10). An operation lever lock device is provided with: an engagement member (70) below the link member (60) and a floor panel (FL); and a stopper plate (80). The stopper plate (80) is disposed so as to be capable of moving between an engaged position at which an engagement section (83) engages with the engagement member (70) and a disengaged position at which the engagement section (83) is disengaged from the engagement member (70). When the stopper plate (80) is disposed at the engaged position, the stopper plate (80) prevents the link member (60) from moving in the vertical direction.

Description

technical field [0001] The invention relates to a device for locking an operating lever of a forklift for loading and unloading operations. Background technique [0002] A forklift that loads and unloads cargo is provided with a plurality of hydraulic cylinders for raising and lowering the fork relative to the mast, moving the fork left and right relative to the mast, or changing the inclination angle of the mast relative to the vehicle. By operating a plurality of operating levers provided on the instrument panel to switch hydraulic control valves and perform oil supply control, an operator can freely operate these hydraulic cylinders. [0003] Typically, such forklifts are provided with a mechanism for locking the operating lever against unintentional movement of the fork. For example, in Patent Document 1, a lever lock device is provided on the upper surface of the instrument panel, and a slider of the lever lock device is connected to an operation lever via a link. Hol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F9/20
CPCB66F9/20Y10T137/877B66F9/07504E02F9/2004F15B13/01
Inventor 内藤忍
Owner KOMATSU LTD
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