Vibration damping device and elevator apparatus

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12227391
APP PUB NO 20210231190A1
SERIAL NO

17051788

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A vibration damping device for reducing vibration of an elevator rope includes a displacement amplifier arranged around a region from a first portion of the elevator rope drawn and a second portion of the elevator rope drawn from an opposite side of one or more sheaves in parallel with the first portion. The displacement amplifier is configured to amplify a displacement of each of the first portion and the second portion of the elevator rope. The device also includes a limiting member that controls displacement amplification performed by the displacement amplifier such that the displacement of the first portion or the second portion amplified by the displacement amplifier does not become greater than a first displacement, which is a displacement of the elevator rope by which the elevator rope is not allowed to return to an equilibrium position of the vibration.

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Patent Owner(s)

  • MITSUBISHI ELECTRIC CORPORATION

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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