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:
May. 08, 2012
Filed:
Jun. 01, 2004
Kan Kawasaki, Fuchu, JP;
Ikuo Asami, Fuchu, JP;
Takashi Ishii, Fuchu, JP;
Shun Fujimura, Fuchu, JP;
Satoshi Takasawa, Fuchu, JP;
Kan Kawasaki, Fuchu, JP;
Ikuo Asami, Fuchu, JP;
Takashi Ishii, Fuchu, JP;
Shun Fujimura, Fuchu, JP;
Satoshi Takasawa, Fuchu, JP;
Toshiba Elevator Kabushiki Kaisha, Tokyo-To, JP;
Abstract
A machineroom-less elevator in which a counterweight is vertically moved behind a cage, with the cage and the counterweight being suspended in a jig back manner through a first and second diverting sheaves. In this machineroom-less elevator, a sufficiently large vertical stroke of the counterweight can be secured, while a durability of a hoist rope is improved. In addition, since no tensile difference is generated in respective parts of the hoist rope, vertical vibrations of the cage are prevented when the cage restarts a vertical movement. A traction sheave is disposed on one of right and left sidewalls of an elevator shaft. A first diverting sheave is disposed below and sufficiently apart from the traction sheave, and a second diverting sheave is disposed on a top of a rear wall of the elevator shaft. The traction sheave is disposed to be inclined relative to the sidewall such that a rotational axis thereof extends from the sidewall of the elevator shaft to the rear wall thereof, when viewed vertically from above.