A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MULTIDIRECTIONAL SWITCHING VALVE FOR CONSTRUCTION MACHINE
The object of the present invention is to provide a multiple direction switching valve capable of stopping acceleration of a first actuator upon operation of a second actuator, without adding any outside pipe. A boom accelerating valve 4 is located in a valve member block 10, the boom accelerating valve 4 having an accelerating position 4a at which pressure oil from a second pump 52 is supplied to a boom hydraulic cylinder 55, and a neutral position 4b at which the pressure oil from the second pump 52 is not supplied to the boom hydraulic cylinder 55. In addition, a boom acceleration releasing mechanism is provided in the valve member block 10, the boom acceleration releasing mechanism being configured to return the boom accelerating valve 4 to the neutral position 4b from the accelerating position 4a, when an arm direction switching valve 2z is operated.
MULTIDIRECTIONAL SWITCHING VALVE FOR CONSTRUCTION MACHINE
The object of the present invention is to provide a multiple direction switching valve capable of stopping acceleration of a first actuator upon operation of a second actuator, without adding any outside pipe. A boom accelerating valve 4 is located in a valve member block 10, the boom accelerating valve 4 having an accelerating position 4a at which pressure oil from a second pump 52 is supplied to a boom hydraulic cylinder 55, and a neutral position 4b at which the pressure oil from the second pump 52 is not supplied to the boom hydraulic cylinder 55. In addition, a boom acceleration releasing mechanism is provided in the valve member block 10, the boom acceleration releasing mechanism being configured to return the boom accelerating valve 4 to the neutral position 4b from the accelerating position 4a, when an arm direction switching valve 2z is operated.
MULTIDIRECTIONAL SWITCHING VALVE FOR CONSTRUCTION MACHINE
MULTIDIREKTIONALES SCHALTVENTIL FÜR EINE BAUMASCHINE
VANNE DE COMMUTATION MULTIDIRECTIONNELLE POUR ENGIN DE CHANTIER
OKADA TAISUKE (author)
2019-02-27
Patent
Electronic Resource
English
MULTIDIRECTIONAL SWITCHING VALVE FOR CONSTRUCTION MACHINE
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