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Title:
NOISE REDUCTION METHOD USING LUBRICATING LIQUID CRYSTAL COMPOUND, FRICTION CLUTCH DEVICE AND FRICTION BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/124072
Kind Code:
A1
Abstract:
Provided are: a noise reduction method using a lubricating liquid crystal compound (a liquid crystal grease) which is capable of preventing the generation of abnormal noise between a friction member and a pressed member and stabilizing friction properties; a friction clutch device; and a friction brake device. A friction brake device 70 to be used in a winding machine, which comprises rotatable friction members 72a and 72b and pressed members 71, 73 and 35 being capable of generating a frictional force between the friction members 72a and 72b, wherein the friction members 72a and 72b are impregnated with a calamitic liquid crystal compound 1 aligned in the smectic liquid crystal state, and the calamitic liquid crystal compound 1, which is in the liquid crystal state showing smectic phase, exists within the friction members 72a and 72b and between the friction members 72a and 72b and the pressed members 71, 73 and 35.

Inventors:
HARAMOTO Yuichiro (4-37 Takeda 4-chome, Kofu-sh, Yamanashi 10, 〒4008510, JP)
HARAMOTO Takami (2000Tsuijiarai, Showa-cho, Nakakoma-gu, Yamanashi 53, 〒4093853, JP)
Application Number:
JP2018/044688
Publication Date:
June 27, 2019
Filing Date:
December 05, 2018
Export Citation:
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Assignee:
UNIVERSITY OF YAMANASHI (4-37, Takeda 4-chome Kofu-sh, Yamanashi 10, 〒4008510, JP)
KITO CORPORATION (2000, Tsuijiarai Showa-cho, Nakakoma-gu, Yamanashi 53, 〒4093853, JP)
International Classes:
C09K3/14; B66D1/16; B66D5/14; C10M129/86; F16D13/62; F16D69/02; C10N20/00; C10N20/06; C10N30/00; C10N40/00
Foreign References:
JP2004359848A2004-12-24
JPH06159409A1994-06-07
JPH08226461A1996-09-03
JPH08245976A1996-09-24
Attorney, Agent or Firm:
IAT WORLD PATENT LAW FIRM (7th Floor, HULIC Nakano Bldg. 44-18 Honcho 4-chome, Nakano-k, Tokyo 12, 〒1640012, JP)
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