Title:
EDDY-CURRENT TYPE DAMPER
Document Type and Number:
WIPO Patent Application WO/2020/116344
Kind Code:
A1
Abstract:
An eddy-current type damper (1) includes: a cylindrical magnet holding member (5); a plurality of permanent magnets (6); a cylindrical conductive member (4); a screw shaft (2); a ball nut (3); and a connection mechanism (7). The permanent magnets (6) are fixed to the magnet holding member (5), and are disposed so as to be spaced apart from each other along the circumferential direction of the magnet holding member (5) and to be alternately reversed in magnetic pole arrangement along the circumferential direction. The conductive member (4) faces the permanent magnets (6) with a gap therebetween in the radial direction of the magnet holding member (5). The screw shaft (2) can reciprocate along the center axis direction of the magnet holding member (5). The ball nut (3) is engaged with the screw shaft (2), and movement of the screw shaft (2) causes relative rotation of the permanent magnets (6) and the conductive member (4). The connection mechanism (7) causes connection between the magnet holding member (5) and the conductive member (4) and causes the magnet holding member (5) and the conductive member (4) to rotate in opposite directions.
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Inventors:
NOGUCHI YASUTAKA (JP)
NOGAMI HIROSHI (JP)
IMANISHI KENJI (JP)
MASUI RYOHSUKE (JP)
SANO KUMPEI (JP)
NOGAMI HIROSHI (JP)
IMANISHI KENJI (JP)
MASUI RYOHSUKE (JP)
SANO KUMPEI (JP)
Application Number:
PCT/JP2019/046797
Publication Date:
June 11, 2020
Filing Date:
November 29, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
E04H9/02; F16F7/10; F16F15/03
Foreign References:
| JP2014202234A | 2014-10-27 | |||
| JP2016517493A | 2016-06-16 | |||
| JP2013244841A | 2013-12-09 | |||
| JP2019183906A | 2019-10-24 |
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (JP)
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