| 摘要 |
In a pneumatic actuator wherein air pressure in a diaphragm compartment (38) is changed by controlling solenoid valves (39, 39 and 41) thereby to output a displacement; an intake solenoid valve (39) has a spring (30h) which penetrates a center part of a fixed iron core (39e) and urges a movable iron core (39f), and the solenoid valves (39, 39 and 41) are mounted on a housing (31) in a triangular disposition with terminal side thereof faced to the housing (31), and besides, one of terminals of each solenoid valve (39 or 41) is secured with each other at a center part of the triangular disposition, and the other terminals are disposed outward of the triangular disposition.
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