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Forward/backward movement operation device for work machine

A technology of forward and backward, operating machinery, applied in the direction of mechanical equipment, control devices, transmission device control, etc., to achieve the effect of preventing walking movements

Active Publication Date: 2009-11-25
NIHON KENKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the driver does not operate the first forward and backward operation mechanism after switching to the second control state, there is a situation that the driver is placed in the second control state.

Method used

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  • Forward/backward movement operation device for work machine
  • Forward/backward movement operation device for work machine
  • Forward/backward movement operation device for work machine

Examples

Experimental program
Comparison scheme
Effect test

no. 2 approach

[0088] use Figure 5-7 A second embodiment will be described. Figure 5is a schematic diagram showing a cab equipped with a working machine according to the second embodiment, Figure 6 is a circuit diagram showing the configuration of the second embodiment, Figure 7 It is a flowchart showing the operation of the second embodiment. in addition, Figure 5 , Figure 6 Indicated parts in and figure 2 , image 3 Parts identical to those shown, labeled with figure 2 image 3 The same symbols as those marked in .

[0089] In the second embodiment, as in the first embodiment, it is mounted on a working machine that travels on wheels such as a wheel excavator or a wheel loader to perform the above-mentioned operations. figure 1 The forward and backward operation device of the working machine for switching the forward and backward of the traveling device 1 of the working machine shown.

[0090] Such as Figure 5 , 6 As shown, the second embodiment includes a forward and ...

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PUM

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Abstract

A forward / reverse control system for a work machine cancels a second control state, in which forward / reverse switching control is performed by a second forward / reverse control means, by an operation of a first forward / reverse control means to return to a first control state in which forward / reverse switching control is performed by the first forward / reverse control means. The system is provided with a F-N-R lever unit 30 (the first forward / reverse control means) and F-N-R switch unit 40 (the second forward / reverse control means) that instruct forward, reverse or neutral, a controller 42 which performs forward / reverse switching control by giving priority to an instruction from the F-N-R lever unit 30 over an instruction from the F-N-R switch unit 40, and a selector switch 41 which by an operation of a switching control member 41a, instructs the controller 42 to switch to the second control state or to cancel the second control state. As a consequence, the system has made it possible to return to the first control state without an operation of the first forward / reverse control means.

Description

technical field [0001] The present invention relates to a forward and backward operation device for a work machine, which is installed on a work machine that uses wheels such as a wheel excavator or a wheel loader, and includes: a first forward and back operation mechanism for instructing the work machine to move forward, backward and neutral; A second forward and backward operating mechanism; and a switch indicating mechanism for switching from a first control state in which the forward and reverse switching control is performed by the first forward and backward operating mechanism to a second control state in which the forward and reverse switching control is performed by the second forward and reverse operating mechanism , using the operation of the first forward and backward operating mechanism to release the second control state and return to the first control state. Background technique [0002] A work machine that travels on wheels, such as a wheel excavator or a whee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/00B60K20/02E02F9/24F16H59/02B60K20/00E02F9/20E02F9/22F16H59/12F16H61/18
CPCF16H2059/0256F16H59/02F16H59/12E02F9/2004E02F9/24F16H61/18Y10T74/20582F16H61/00B60K20/02E02F9/20E02F9/22
Inventor 吉川正规室田充实山崎恭央
Owner NIHON KENKI CO LTD