Actuator device

Details Actuator device Actuator device

1996-07-26

1998-02-24

Joyce, Harold

Machine element or mechanism

Elements

Gear casings

74421A, 74606R, F16H 5704

Patent

active

057202060

ABSTRACT:
An actuator device designed to prevent intrusion of water into a control section housing chamber due to an breathing operation and hence malfunction and fracture of a control section. In the actuator device, a ventilating opening is provided in a partition between a mechanism section housing chamber and a control section housing chamber for communicating the mechanism section housing chamber and the control section housing chamber, a cylindrical protrusion is provided in the partition on the side of the mechanism section housing chamber so as to surround the ventilating opening; and a drain hole for communicating said mechanism section housing chamber with outside air is provided at a position lower than that of the ventilating opening of said mechanism section housing chamber.

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