Coupling disconnected in the case of overloading
AssigneeJean Walterscheid GmbH
InventorClemens Nienhaus
Life of this patent
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Abstract
A coupling having a coupling hub and a rotatably received coupling sleeve. Locking catches (19)are arranged between these two components to transmit torque. Supporting faces of the locking catches, in the torque transmitting position, are supported on corresponding supporting faces of the coupling hub and coupling sleeve. The locking catches are held in the torque transmitting position by switching rings which, via switching faces, act on corresponding switching faces at the ends of the locking catches. In the case of overloading, the switching ring is axially adjusted against the force of a spring and releases the coupling towards the disengaged position. The coupling slides inwardly as a result of the relative movement on the inclined supporting faces of the coupling sleeve.
Claims7
A coupling comprising:
- a coupling hub and a coupling sleeve rotatably received thereon;
- a plurality of locking catches swivelably arranged between the coupling hub and coupling sleeve, said catches in a disengaged position engaging recesses in said coupling hub and, in a torque transmitting position, said catches being, at one end, held on a supporting face of the hub recess and at the other end being held in contact with an opposed supporting face of a recess of the coupling sleeve;
- said coupling hub being a driving part, and said locking catches, at their sides, including first switching faces which, if viewed in longitudinal section, extend on an incline which intersects the rotational axis of the coupling in the region of axial extension of the locking catches, said catches' first switching faces being loaded by switching faces of laterally arranged switching rings, at least one of said switching rings being spring-loaded in the axial direction towards the locking catches and a second supporting face of the locking catches and a supporting face of the coupling sleeve, viewed in the cross-section, corresponding to each other and intersecting a plane of a longitudinal section containing the rotational axis in such a way that when a predetermined torque value is exceeded, the locking catches move away from the supporting face of the coupling sleeve.
Dependencies are inferred from the claim text.