Patent ID: 7900591

Claim:
A switchable component for a valve train of an internal combustion engine, said component comprising: a housing in whose bore an axially displaceable inner element comprising coupling elements is received, said coupling elements, for effecting coupling axially distant relative position of the inner element to the housing, being able to he brought partially into engagement with an entraining surface of the housing, the inner element being biased in outward direction from the housing by a lost motion spring, an axially fully extended position of the inner element being defined by an upper vertical stop means overlapping an annular gap between the inner element and the housing, in which extended position, a coupling position of the coupling elements with coupling lash relative to the entraining surface of the coupling elements is created, and an anti-rotation device extending from an outer casing of the housing projects beyond a surrounding structure, wherein the outer anti-rotation device is configured as a C-shaped, thin-walled ring comprising a slit, said ring extends in a manner of a clip in an annular groove in the outer casing of the housing parallel to a transversal plane of the component and, for effecting anti-rotation, said ring projects with a sickle-shaped portion of an outer peripheral surface beyond the outer casing of the housing, and a remaining outer peripheral portion of said ring does not protrude beyond the outer casing of the housing, and wherein the ring is configured at the same time as an upper vertical stop means, and the housing comprises at least one aperture through which an appropriate inner peripheral segment of the ring projects, and in an outer peripheral surface of the inner element extends a longitudinal flattened portion or a longitudinal groove, into which the inner peripheral segment engages, and a lower edge of the longitudinal flattened portion/longitudinal groove abuts against a lower surface of the inner peripheral segment for defining the coupling position upper vertical stop means.