Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1998-10-20
1999-10-26
Walsh, Donald P.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254372, 254375, B66D 114
Patent
active
059713640
ABSTRACT:
In order that an operating lever for a hoist and traction apparatus is combined as a unit to ensure the smooth operations so as to provide an improved workability with achieving a downsizing, a driving member of the hoist and traction apparatus is provided with a non-circular configured part, while also the operating lever is provided with a ratchet wheel having a non-circular fitting hole engageable with the non-circular configured part to be non-rotatable relative thereto and a transmission tooth around its outer periphery; a feed pawl engageable with the ratchet wheel; and a switching mechanism for selectively switching the feed pawl to a normal engagement position, a reverse engagement position, and a free rotation position at which the feed pawl is not engaged with the ratchet wheel in either of the normal and reverse directions. The operating lever combined as a unit enables the apparatus to be downsized, and the switching of the feed pawl to the free rotation position enables the operating lever to be prevented from being rotated together with the load sheave.
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patent: 5364073 (1994-11-01), Sell
Kobayasi Eikiti
Ueno Yosio
Elephant Chain Block Co., Ltd.
Marcelo Emmanuel M.
Walsh Donald P.
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