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Patent Searching and Data


Title:
VIBRATION DAMPING DEVICE AND ELEVATOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/220669
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a vibration damping device provided with an instability prevention means for efficiently suppressing amplification of vibration due to a resonance phenomenon in a long structural body that is flexible in terms of its mechanical structure. A vibration damping device (100) for reducing vibration in a long structural body (1) is provided with a displacement amplifier (7) and restricting members (8). The displacement amplifier (7) is arranged at any position in the lengthwise direction of the structural body (1). The displacement amplifier (7) amplifies displacement of the structural body (1). The restricting members (8) prevent the displacement amplifier (7) from amplifying displacement of the structural body (1) by greater than a first displacement at which a return to the vibration equilibrium position does not occur.

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Inventors:
SAITO EIICHI (JP)
HIRAI TAKAHIDE (JP)
WATANABE SEIJI (JP)
NAKAZAWA DAISUKE (JP)
FUKUI DAIKI (JP)
ASAMURA TOMOHIRO (JP)
CHIKADA YUSUKE (JP)
Application Number:
PCT/JP2018/044400
Publication Date:
November 21, 2019
Filing Date:
December 03, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F16F15/02; B66B7/06; F16F15/03
Domestic Patent References:
WO2010013597A12010-02-04
Foreign References:
JP2007309411A2007-11-29
JPH10504088A1998-04-14
JP2014190507A2014-10-06
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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