Patent ID: 9372497
Filing Date: 2016-06-21
CPC Classification: G05G,Y10T

Claim Text:
1. A rotary actuator comprising: a rotatable first part, comprising an axially aligned peg having a frustoconical shape, and an axially oriented control surface with projections forming an undulating or sawtooth profile, the first part being movable axially against a restoring force; and a fixed second part, comprising at least one detent element running on the control surface, wherein the detent element is fixed in position and interacts with the control surface of the first part, wherein the peg engages with circumferential play when fully engaged in a recess having a first wall surface and a second wall surface and a shape complementary to the peg, and as the detent element runs up a projection, of the projections, of the control surface as a result of a movement of the first part, the peg is partially disengaged from the recess in an axial direction while partially resting against the first wall surface of the recess and, upon passing beyond the projection, the peg snaps back due to the restoring force and strikes against the second wall surface.