| 摘要 |
The invention proposes a switchable finger lever (1) comprising a fork-shaped outer lever (2) between whose arms (3a, 3b) a fork-shaped inner lever (4) is arranged for pivoting relative thereto. The outer lever (2) comprises on an underside (6) in the region of its one closed end (7), a support (8) for the gas exchange valve. The inner lever (4) comprises on the underside (6) on the opposite end (9), a complementary surface (10) for a support element, and on the side of the one end (7), a cam contacting means (12). The latter extends on an axle (13) that is fixed in the outer lever (2). The two levers (2, 4) can be coupled and uncoupled at the opposite end (9) by a transversely displaceable coupling element (5). In this way, a switchable finger lever (1) is obtained that can also be designated as a "buckling" lever and, due to its configuration, has only a small design space requirement. At the same time, the finger lever (1) has only a low mass moment of inertia and can be installed without complicated modifications in existing cylinder heads.
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