Vibration damping device and elevator apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12103823
APP PUB NO 20210094799A1
SERIAL NO

17051786

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An object of the present invention is to provide a vibration damping device including an instability preventing means, for efficiently suppressing amplification of vibration of a long structure, which is mechanically flexible, due to a resonance phenomenon. A vibration damping device (100) for reducing vibration of a long structure (1) includes a displacement amplifier (7) and limiting members (8). The displacement amplifier (7) is arranged along a given position in the longitudinal direction of the structure (1). The displacement amplifier (7) amplifies a displacement of the structure (1). The limiting members (8) control displacement amplification performed by the displacement amplifier (7) such that the displacement of the structure (1) amplified by the displacement amplifier (7) does not become greater than a first displacement, the first displacement being a displacement of the structure (1) by which the structure (1) is not allowed to return to the equilibrium position of the vibration.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATIONCHIYODA-KU TOKYO 100-8310

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asamura, Tomohiro Tokyo, JP 6 22
Chikada, Yusuke Tokyo, JP 4 18
Fukui, Daiki Tokyo, JP 13 121
Hirai, Takahide Tokyo, JP 9 48
Nakazawa, Daisuke Tokyo, JP 16 84
Saito, Eiichi Tokyo, JP 21 129
Watanabe, Seiji Tokyo, JP 95 1296

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