Title:
VIBRATION REDUCER OF ELEVATOR
Document Type and Number:
WIPO Patent Application WO/2002/083541
Kind Code:
A1
Abstract:
A vibration reducer of elevator comprising acceleration sensors (61, 62) for detecting vibration of a cage, controllers (90a, 90b) for calculating a force applied to the cage based on signals from the acceleration sensors, and actuators (81-84) for applying the force to the cage according to the result of the calculation by the controllers, wherein a dead band filter (102) having a specified dead band region corresponding to the noise level of the acceleration sensors and an integrator (92) for integrating the signals from the acceleration sensors having passed through the dead band filter are provided to the acceleration sensors (61, 62) or the controllers (90a, 90b) or between them.
Inventors:
UTSUNOMIYA KENJI (JP)
OKAMOTO KENICHI (JP)
YUMURA TAKASHI (JP)
OKAMOTO KENICHI (JP)
YUMURA TAKASHI (JP)
Application Number:
PCT/JP2001/003082
Publication Date:
October 24, 2002
Filing Date:
April 10, 2001
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
UTSUNOMIYA KENJI (JP)
OKAMOTO KENICHI (JP)
YUMURA TAKASHI (JP)
UTSUNOMIYA KENJI (JP)
OKAMOTO KENICHI (JP)
YUMURA TAKASHI (JP)
International Classes:
B66B7/04; B66B11/02; (IPC1-7): B66B1/06; B66B11/02
Foreign References:
| JPH0826624A | 1996-01-30 | |||
| JPH0867427A | 1996-03-12 | |||
| JPH09305203A | 1997-11-28 |
Attorney, Agent or Firm:
Soga, Michiteru (Kokusai Building 1-1 Marunouchi 3-chome Chiyoda-ku, Tokyo, JP)
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