| 摘要 |
PROBLEM TO BE SOLVED: To provide an operating signal detecting means of a construction equipment, capable of detecting with a simple structure whereby a remote control valve device has been surely operated. SOLUTION: This operation signal detecting means is provided with a valve device 100 comprising a directional control valve of controlling an actuator, a remote-controlled valve devices 110, 120 to remotely control the directional control valve, a hydraulic oil source 150 to supply pressured oil to the remote control valve devices 110, 120, and the flow resistance means 20 is provided between the remote control valve devices 110, 120 and the hydraulic oil source 150. It is also provided with a detecting means 200 to detect a pressure difference produced by the flow resistance means 20, if the pressured oil passes through the flow resistance means 20, when operating the remote control valve devices 110, 120 and is structured, so as to detect the operating condition of the remote control valve devices 110, 120 by a signal outputted from the detecting means 200.
|
