Title:
ELEVATOR CONTROLLER
Document Type and Number:
WIPO Patent Application WO/2004/024609
Kind Code:
A1
Abstract:
An elevator controller wherein main ropes (13) are locked to a cab (2) to raise the latter and entrained around a plurality of winches (9) disposed in spaced opposed relation to each other, so as to drive the cab (2) for rising and lowering movement, the controller being adapted to detect the tension in each main rope (13) in a stationary state prior to driving the cab (2) and to individually increase or decrease the output power from the corresponding winch (9) on the basis of the detected value, thereby raising or lowering the cab (2). Therefore, even if the load is imbalancedly placed on the cab (2) to cause the tensions in the main ropes (13) to differ from each other, the winches (9) drives the cab (2) with their respective corresponding output powers, so that there is no possibility of the cab (2) being inclined.
More Like This:
| JPH07115806 | INDUSTRIAL APPLICABILITY: Elevator control device |
| JPS51143815 | SPEED INSTRUCTION CIRCUIT |
Inventors:
YASUE MASANORI
Application Number:
PCT/JP2002/009267
Publication Date:
March 25, 2004
Filing Date:
September 11, 2002
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B1/28; B66B1/44; B66B5/02; B66B7/06; (IPC1-7): B66B1/44; B66B5/02; B66B7/06
Foreign References:
| JP2001261257A | 2001-09-26 | |||
| JPH0570057A | 1993-03-23 | |||
| JP2000272849A | 2000-10-03 | |||
| JPH08301539A | 1996-11-19 | |||
| JP2001233553A | 2001-08-28 | |||
| JPH08217378A | 1996-08-27 | |||
| JP2000086151A | 2000-03-28 | |||
| JPH0725553A | 1995-01-27 |
Other References:
See also references of EP 1538121A4
None
None
Attorney, Agent or Firm:
Takada, Mamoru (Kuzuno Takahashi & Tanida, 5th Floor,
Intec 88 Bldg., 20, Araki-ch, Shinjuku-ku Tokyo, JP)
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