Title:
HYDRAULIC WORK VEHICLE
Document Type and Number:
Japanese Patent JP2017171012
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic work vehicle capable of quickly stopping actuation of a working device to secure safety when discrepancy occurs between the control content of a hydraulic actuator and actuation of the actuator detected by a sensor part.SOLUTION: A hydraulic work vehicle in this invention comprises: a working device having a hydraulic actuator provided on an undercarriage and actuating by a solenoid control valve; a controller controlling actuation of the hydraulic actuator by sending an actuation signal to the solenoid control valve; and a noncontact switch provided at a position capable of detecting actuation of the hydraulic actuator and sending a detection signal of a detected actuation to the controller. The controller is characterized by controlling to shut off energization to the controller when discrepancy occurs between the control content of the actuator and the actuation of the hydraulic actuator detected by the noncontact switch.SELECTED DRAWING: Figure 3
Inventors:
NISHIZAKI SATOSHI
Application Number:
JP2016057055A
Publication Date:
September 28, 2017
Filing Date:
March 22, 2016
Export Citation:
Assignee:
SHIN MEIWA IND CO LTD
International Classes:
B60R16/02; B65F3/00; B65F3/20; B65F3/28; F15B20/00
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office