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Title:
EDDY CURRENT-TYPE DAMPER
Document Type and Number:
WIPO Patent Application WO/2019/054278
Kind Code:
A1
Abstract:
This eddy current-type damper (1) is provided with: a threaded shaft (7) that is capable of moving in an axial direction; a plurality of first permanent magnets (3); a plurality of second permanent magnets (4); a magnet holding member (2) formed in a cylindrical shape; a current-conducting member (5) which is formed in a cylindrical shape and which has conductive properties; a ball nut (6) which meshes with the threaded shaft (7); and a heat transfer layer (12) which covers a surface of the current-conducting member (5) facing the first permanent magnets (3) and the second permanent magnets (4). The magnet holding member (2) holds the first permanent magnets (3) and the second permanent magnets (4). The current-conducting member (5) is disposed so as to face, across a gap, the first permanent magnets (3) and the second permanent magnets (4). The ball nut (6) is disposed inside the current-conducting member (5) and the magnet holding member (2) and is fixed to the magnet holding member (2) or the current-conducting member (5). The heat transfer layer (12) has a higher thermal conductivity than the current-conducting member (5).

Inventors:
NOGUCHI YASUTAKA (JP)
IMANISHI KENJI (JP)
MASUI RYOHSUKE (JP)
NOGAMI HIROSHI (JP)
Application Number:
JP2018/033061
Publication Date:
March 21, 2019
Filing Date:
September 06, 2018
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
F16F15/03; F16H25/20; F16H25/22; F16H25/24; H02K49/10
Domestic Patent References:
WO2003104679A12003-12-18
Foreign References:
JP2013210048A2013-10-10
JP2005256889A2005-09-22
JP2008068650A2008-03-27
JPH0586496A1993-04-06
JP2000320607A2000-11-24
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (JP)
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