Hitachi Construction Machinery Co., Ltd.

Kcm Corporation

Jujitsu Murota

Kazuhiko Hiraoka

Masaki Yoshikawa

Hirofumi Oouchi

Keisuke Kobayashi

Katsuhiko Tokuda

Mikio Hara

Tsutomu Aoki

Wheel loader

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(the first forward/reverse control means) and F-N-R switch unit(the second forward/reverse control means) that instruct forward, reverse or neutral, a controllerwhich performs forward/reverse switching control by giving priority to an instruction from the F-N-R lever unitover an instruction from the F-N-R switch unitand a selector switchwhich by an operation of a switching control memberinstructs the controllerto 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.

Forward/backward movement operation device for work machine

Growing community of inventors

Kasumigaura, Japan

Jujitsu Murota