| 摘要 |
The invention relates to a switchable clutch which requires control power merely for switching from one operating state to another. The clutch is particularly suitable for connecting and disconnecting auxiliary units in internal combustion engines and motor vehicles. The clutch according to the invention has a driving element ( 9 ), which is rotationally fixed to a shaft ( 3 ) and a clutch disk ( 5 ) which is operatively connected to the auxiliary unit, at least one toggle lever ( 23 ) being rotatably mounted on the driving element ( 9 ), axial displacement of a control sleeve ( 33 ) causing it to engage with a first end ( 29 ) of the toggle lever ( 23 ) so that a second end ( 29 ) of the toggle lever ( 23 ), as a function of the position of the control sleeve ( 33 ), becomes operatively connected to the clutch disk ( 5 ), thereby closing or opening the clutch.
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