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:
Jun. 29, 2004
Filed:
Sep. 23, 2002
Shinji Yamasaki, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In an elevator drive sheave, positioning of divided segments in a circumferential direction relative to a sheave body and transmission of torque between the sheave body and the divided segments are performed by a torque transmission mechanism having a plurality of keys interposed between the sheave body and the divided segments. A projecting portion projecting radially inward is disposed on an axial end portion of the divided segments, a contact surface being disposed on the projecting portions. Positioning of the divided segments in an axial direction relative to the sheave body is performed by the contact surface being placed in contact with an axial end surface of the sheave body.