Forward/backward movement operation device for work machine

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

2005-03-08

2010-11-09

Ilan, Ruth (Department: 3616)

Motor vehicles

Manually actuated controlling devices

With plural control stations

C701S050000, C307S010100, C180S273000, C180S336000

Reexamination Certificate

active

07828107

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 unit30(the first forward/reverse control means) and F-N-R switch unit40(the second forward/reverse control means) that instruct forward, reverse or neutral, a controller42which performs forward/reverse switching control by giving priority to an instruction from the F-N-R lever unit30over an instruction from the F-N-R switch unit40,and a selector switch41which by an operation of a switching control member41a,instructs the controller42to 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.

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International Search Report dated Apr. 12, 2005 Including English Translation of relevant portion (Five (5) pages).

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