B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
B66F 9/22 (2006.01) B66F 9/20 (2006.01) B66F 9/24 (2006.01)
Patent
CA 2469110
A control system of an industrial truck includes a first switch, a second switch and a hydraulic circuit. The first switch detects whether an operator sits down on a seat, and carries out a first operation based on the detecting result. The second switch detects whether a device for operating an actuator is operated, and carries out a second operation based on the detecting result. The hydraulic circuit is used for operating of the actuator. The hydraulic circuit includes: a control valve, a first circulating line, a hydraulic line and a drive lock valve. The control valve includes a spool that position is changed by the device. The first circulating line includes the control valve, through which the hydraulic fluid circulates. The hydraulic line connects the spool with the actuator, through which the hydraulic fluid passes. The drive lock valve is provided for the hydraulic line, and blocks the hydraulic line, based on the first operation and/or the second operation.
Nakada Takuya
Saito Toru
Ueda Katsumi
G. Ronald Bell & Associates
Mitsubishi Heavy Industries Ltd.
Nissan Motor Co. Ltd.
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