| 摘要 |
The invention proposes a switchable component (1) for a valve train of an internal combustion engine, said component comprising a housing (2) in whose bore (3) an axially displaceable inner element (4) is received, at least one coupling means (5) being arranged in the inner element (4), said coupling means (5), for effecting coupling [axially distant relative position of the inner element (4) to the housing (2)], being able to be brought partially into engagement with an entraining surface (6) of the housing (2), the inner element (4) being biased in outward direction from the housing (2) by at least one lost motion spring (7), an axially fully extended position of the inner element (4) being defined by a stop means (9) overlapping an annular groove (8) between the inner element (4) and the housing (2), and an anti-rotation device (10) being arranged between the inner element (4) and the housing (2). This anti-rotation device (10) is configured as a thin-walled ring comprising a slit (11), a rectangular extension (13) projects inwards from a central position from the inner peripheral surface (12) of said ring (10) which extends parallel to a transversal plane of the component (1) on an outer peripheral surface (14) of the housing (2), the housing (2) comprises an aperture (15) that is complementary in shape to the extension (13) of the ring (10) and said extension (13) extends through said aperture (15), a counter surface (17) for the extension (13) extends in the form of a longitudinal flattened portion or a longitudinal groove in the outer peripheral surface (16) of the inner element (4), and the extension (13) extends with, a complementary inner surface (18) directly on or into said counter surface (17).
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