The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1999
Filed:
Oct. 20, 1998
Yosio Ueno, Osaka, JP;
Eikiti Kobayasi, Osaka, JP;
Elephant Chain Block Co., Ltd., Osaka, JP;
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile