| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a combined solenoid selector valve capable of quickly detecting an exhaust failure from an exhaust chamber to a low pressure side, as well as of detecting mismatching operation of two main valves. Ž<P>SOLUTION: Operation detecting members 27, 28 are provided at the axial ends of the two main valves 8, 9 movably in the axial direction, and both operation detecting members 27, 28 are energized to be moved integrally with the main valves 8, 9 in the axial direction by springs 29, 30 so that they can freely abut on the axial ends of the main valves 8, 9. The operation detecting members 27, 28 are subjected to working force based on the pressure of compressed air on the side of the exhaust chamber E1 via flow paths 36, 37 against the elastic force of the springs 29, 30. When the operation detecting members 27, 28 are subjected to the working force based on the pressure of compressed air on the side of the exhaust chamber E1, exceeding the elastic force of the springs 29, 30, the operation detecting members 27, 28 are isolated from both main valves 8, 9 to approach nearby switches 31, 32 so that the adjacent switches 31, 32 are turned on to detect an exhaust failure. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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