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(11) | EP 0 223 422 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Fibre-opening unit for an open-end spinning unit |
(57) Drive to the sliver feed roll 11 of a fibre-opening unit of an open-end spinner is
interrupted by de-activation of a clutch 2, 6, 7, 8 and simultaneously further rotation
of the input shaft 4 of a worm 9 and pinion 10 mechanism is blocked against further
rotation by release of a spring finger 13 into the path of peripheral teeth on a disc
12. Upon a yarn break sensed by a detector 15, the clutch is de-energised and the spring finger 13 released to arrest and lock the disc 12. |