| 摘要 |
A switchable drag lever ( 1 ) of a valve timing mechanism of an internal combustion engine is proposed, having an outer lever ( 3 ) and an inner lever ( 4 ) which is arranged between the said outer lever ( 3 ). The drag lever ( 1 ) has a rest ( 7 ) for a gas exchange valve on an underside ( 5 ) at one end ( 6 ), and a pivoting bearing ( 9 ) for a supporting element on an underside ( 5 ) at the other end ( 8 ). The levers ( 3, 4 ) extend at one end ( 6 ) on a common pin ( 10 ). Receptacles ( 10 a, 10 b) for coupling means are provided which extend longitudinally at the end ( 8 ) facing away from the pin ( 10 ) and are aligned with respect to one another in the cam base circle. The side walls ( 2 ) of the outer lever ( 3 ) have contact faces ( 12 ) for lifting cams on their upper sides ( 11 ). A segment-like collar ( 13 ) protrudes inwards from each upper side ( 11 ), which segment-like collar ( 13 ) forms a structural unit with the respective contact face ( 12 ), the corresponding underside ( 14 ) of the collar ( 13 ) bearing against a complementary stop face ( 15 ) of an upper side ( 16 ) of the adjacent arm ( 2 a) of the inner lever ( 4 ) in the coupling case. Alignment of the receptacles ( 10 a, 10 b) is therefore provided in a simple way for the coupling case.
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