SEALED ACTUATOR WITH INTERNAL CLUTCHING

摘要

A sealed actuator with internal clutching assembly including an output shaft, output detent ring, moving detent ring, and a wave spring, which is fit inside a sealed housing. The moving detent ring is able to move axially to the output shaft and the output detent ring is able to rotate on the output shaft. Intermeshing ramped teeth of these rings are held together by a wave spring and allow the output shaft to rotate and transmit torque of a motor through a main gear operably coupled to an output gear mounted on the output shaft to the outside of the housing. During predetermined high loads, the output and moving detent rings ramped teeth create an axial force that overcomes the load from the wave spring, which allows moving detent ring to disengage and output shaft to rotate freely to help prevent damage to the actuator.

主权项

1. A sealed actuator with internal clutching for attachment to a vehicle component, comprising:
an output shaft with an output gear and an output detent ring rotatably mounted thereon; a moving detent ring slidably mounted on said output shaft and intermeshable with said output detent ring; a wave spring mounted on said output shaft providing a biasing force against said moving detent ring; a housing portion that is fixed and sealed within which said output shaft is mounted; a main gear having selective torsional force transferring gear contact with said output gear; a motor having a worm gear providing selective torsional force transferring gear contact with said main gear; wherein when said moving detent ring and said output detent ring are intermeshed by the force of said wave spring, said output shaft is rotatable to transmit torque from said motor through said main gear and said output gear to the outside of said housing portion; and wherein when during predetermined conditions said moving detent ring and said output detent ring create an axile force that overcomes the load from said wave spring, said output shaft is allowed to rotate freely for preventing damage to said sealed actuator with internal clutching.