| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple valve device, in which feed of working fluid to change-over valve mechanisms alone can be stopped in simple constitution, and an automatic stop function of an actuator such as a cylinder can be realized. SOLUTION: Focusing on the fact that feed of working fluid to the respective change-over valve mechanisms 3A and 3B is performed through a parallel line 4 connected to an excess flow outlet port 21 of a priority valve mechanism 2, an emergency stop valve 61 is provided to disconnectably connect the parallel line 4 to a tank line 5. In a prescribed condition where the automatic stop function is demanded, the emergency stop valve 61 is opened. COPYRIGHT: (C)2009,JPO&INPIT
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