Title:
ELEVATOR
Document Type and Number:
WIPO Patent Application WO/2006/001075
Kind Code:
A1
Abstract:
An elevator in which a main rope suspending a cage and a counterweight are passed about the driving sheave of a driver. The cage side and the counterweight side are arranged to be balanced when the load in the cage does not exceed one half of the maximum loadage of the cage. The cage is provided with a weighing unit for measuring the load in the cage. A torque assist unit is provided in the elevator shaft. An assist controller controls the torque assist unit such that an auxiliary torque is imparted to the driving sheave when the load in the cage obtained based on information from the weighing unit exceeds a specified level.
Inventors:
YOSHIKAWA MASAMI (JP)
Application Number:
PCT/JP2004/009368
Publication Date:
January 05, 2006
Filing Date:
June 25, 2004
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
YOSHIKAWA MASAMI (JP)
YOSHIKAWA MASAMI (JP)
International Classes:
B66B11/08; (IPC1-7): B66B11/08
Foreign References:
| JPH01271381A | 1989-10-30 | |||
| JPS61127588A | 1986-06-14 | |||
| JPS58130874A | 1983-08-04 | |||
| JPH02300085A | 1990-12-12 |
Other References:
See also references of EP 1760030A4
Attorney, Agent or Firm:
Soga, Michiteru (8th Floor Kokusai Building, 1-1, Marunouchi 3-chom, Chiyoda-ku Tokyo 05, JP)
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