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:
Sep. 24, 2002
Filed:
Mar. 27, 2001
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In an elevator, a transmission sheave is attached to a mount structure fastened to a guide rail. A speed governor rope suspended from a speed governor is coupled with an elevator car that ascends and descends in a shaft, and is wound on the transmission sheave. An idler pulley is provided for increasing a winding angle with respect to the transmission sheave by changing movement of the speed governor rope 4. A position detection apparatus is provided for detecting the position of the car in the shaft based upon the rotation of the transmission sheave. The position detection apparatus can be installed in an empty space in the shaft without the need of a repair of an existing speed governor to save the repair costs of the elevator.