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Patent Searching and Data


Title:
VIBRATION SUPPRESSION DEVICE FOR ROPE-LIKE BODY OF ELEVATOR
Document Type and Number:
WIPO Patent Application WO/2021/090400
Kind Code:
A1
Abstract:
Provided is a vibration suppression device for a rope-like body capable of suppressing the displacement of the rope-like body of an elevator from becoming unstable due to a negative restoring force that amplifies the displacement. This vibration suppression device (21) comprises a first displacement measuring unit, a first displacement amplifier, and a control unit (24). The first displacement measuring unit measures displacement in the lateral direction of vibration centered on an equilibrium position (20) of the rope-like body at a first position (P1) in the longitudinal direction of the rope-like body of the elevator (1). The first displacement amplifier applies, to the rope-like body, a negative restoring force that amplifies the displacement of the rope-like body. The control unit (24) apply to the first displacement amplifier a negative restoring force smaller than a positive restoring force, on the basis of the displacement measured by the first displacement measuring unit. The positive restoring force is a force for returning the rope-like body to the equilibrium position (20).

Inventors:
ASAMURA TOMOHIRO (JP)
SAITO EIICHI (JP)
Application Number:
PCT/JP2019/043480
Publication Date:
May 14, 2021
Filing Date:
November 06, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B7/06; F16F15/02
Foreign References:
JPH0326682A1991-02-05
JP2003192242A2003-07-09
JP2014159328A2014-09-04
JPH0351279A1991-03-05
JPH09142756A1997-06-03
JP2004250217A2004-09-09
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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