| 摘要 |
A clutch unit is disclosed for rotatably connecting two coaxial parts mounted for relative rotation. The clutch unit comprises a circular track on one part and at least one self-clamping cam on the other part bearing on a second track carried by the other part. The self-clamping cam comprises a roller having a roller surface and mounted for eccentric rotation about a pin having an outer periphery defining the second track. The roller surface is clampingly engageable with the first track to define an engaged position of the clutch unit. The pin is carried by a radially elastically deformable arm.
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