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Title:
LINEAR DAMPER AND ROTARY DAMPER
Document Type and Number:
WIPO Patent Application WO/2019/065028
Kind Code:
A1
Abstract:
Provided are a linear damper and a rotary damper which have desired damping characteristics and a simple structure. These dampers (1) are provided with a cylinder (4), a rod (50), and a plurality of granular bodies (90). The cylinder (40) has a first space (S11) formed therein. The rod (50) is partially accommodated inside the first space (S11) and protrudes to the outside. In addition, the rod (50) can reciprocate relative to the cylinder (40) in the center axis direction. Furthermore, the rod (50) forms a filling space (S1), between the rod (50) and the cylinder (40), inside the first space (S11). The plurality of granular bodies (90) are filled in the filling space (S1). In addition, the shape and area of the cross-section, in a direction perpendicular to the central axis, at a predetermined position in the central axis direction of the rod (50) changes according to the movement of the rod (50).

Inventors:
CHIKAMATSU, Satoshi (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
TOYOUCHI, Atsushi (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
SEKINE, Shinichi (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
MASAMURA, Tatsuya (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
MOCHIZUKI, Takahisa (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
KAWAKAMI, Hideki (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
SUOU, Shirou (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
OGURA, Masanori (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
ABE, Keita (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
OTA, Akihisa (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
FUKUZAWA, Yuji (9165, Sakaki, Sakaki-machi, Hanishina-gu, Nagano 88, 〒3890688, JP)
Application Number:
JP2018/031347
Publication Date:
April 04, 2019
Filing Date:
August 24, 2018
Export Citation:
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Assignee:
KYB CORPORATION (World Trade Center Bldg, 4-1 Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
KYB-YS CO., LTD. (9165, Sakaki Sakaki-machi, Hanishina-gu, Nagano 88, 〒3890688, JP)
International Classes:
F16F9/48; F16F7/09; F16F9/14; F16F9/20; F16F9/30; F16F9/32; F16F15/02; F16F15/023
Domestic Patent References:
WO2017221465A12017-12-28
Foreign References:
JPS51133669A1976-11-19
JP2009168233A2009-07-30
JPS6343041A1988-02-24
JP2015222098A2015-12-10
JP2011021648A2011-02-03
JPH08219377A1996-08-30
JPH0550192U1993-07-02
JP2018013191A2018-01-25
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (Hirokoji Sakae Bldg. 3F, 4-1 Sakae 2-chome, Naka-ku, Nagoya-sh, Aichi 08, 〒4600008, JP)
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