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Patent Searching and Data


Title:
TORQUE GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/039293
Kind Code:
A1
Abstract:
Provided is a torque generating device which is suitable for miniaturization and with which a large shear stress can be obtained. This torque generating device is provided with: a magnetic disk which can rotate around a rotation axis; a first yoke located on one side and a second yoke located on the other side in a first direction parallel to the rotation axis with the magnetic disk interposed therebetween; a first coil which is disposed on the first yoke side in the first direction and spaced apart from the magnetic disk, and which generates a magnetic field; and a magnetic viscous fluid filled between the first yoke and the second yoke, wherein: the first yoke is provided radially extending between the first coil and the magnetic disk so as to form a first magnetic gap between the first coil and the magnetic disk; and the first magnetic gap has a shape such that the closer to the first coil, the larger the radial width.

Inventors:
KOIKE, Asuka (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
TAKAHASHI, Kazunari (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
KUGE, Yoshihiro (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
TAKAHASHI, Misuzu (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
Application Number:
JP2018/029838
Publication Date:
February 28, 2019
Filing Date:
August 08, 2018
Export Citation:
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Assignee:
ALPS ALPINE CO., LTD. (1-7 Yukigaya-otsukamachi, Ota-ku Tokyo, 01, 〒1458501, JP)
International Classes:
F16D63/00; F16D57/00; F16F9/53
Foreign References:
US2580869A1952-01-01
JP2005061542A2005-03-10
JP2015022280A2015-02-02
JP2014121202A2014-06-30
JP2014020539A2014-02-03
JPH0417685U1992-02-13
Attorney, Agent or Firm:
OKUBO, Katsuyuki (7th Floor, SEIBUNDO Building 4-3-26, Kudan-kita, Chiyoda-k, Tokyo 73, 〒1020073, JP)
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