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(11) | EP 0 048 897 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Ratchet pawl |
(57) A rachet pawl (22) for a hoist (10) is self-camming into engagement with a ratchet
wheel (20) of the hoist. The pawl includes a primary lobe (32) which engages the ratchet
wheel teeth (24) and a secondary lobe (34) which rides on the ratchet wheel teeth
to cam the primary lobe into position to engage the next ratchet wheel tooth. In a
preferred embodment, the primary lobe is also spring biased into position to engage
the ratchet wheel teeth. |