| 摘要 |
<p>Failsafe apparatus for use with linear actuators are disclosed. A failsafe apparatus for use with a linear actuator (102) includes a spring (124) to urge a first stem (106) of a device (108) to be operated by the linear actuator toward a failsafe position and a clutch (104) to operatively couple a second stem (110) of the linear actuator (102) to the first stem (106). The clutch (104) includes a frame (112) coupled to one of the first stem or the second stem and jaws (114,116) moveably coupled to the frame. The jaws are to engage the other one of the first stem or the second stem to enable the linear actuator to operate the device and to disengage the other one of the first stem or the second stem to enable the spring to move the first stem toward the failsafe position.</p> |
