The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2016
Filed:
Oct. 19, 2011
Yoshihito Watanabe, Tokyo, JP;
Ryoji Tomono, Tokyo, JP;
Hidenori Kida, Tokyo, JP;
Shigeki Nakaminami, Tokyo, JP;
Hisaya Tanaka, Tokyo, JP;
Yoshihito Watanabe, Tokyo, JP;
Ryoji Tomono, Tokyo, JP;
Hidenori Kida, Tokyo, JP;
Shigeki Nakaminami, Tokyo, JP;
Hisaya Tanaka, Tokyo, JP;
THK CO., LTD., Shinagawa-ku, JP;
Abstract
The damping device includes: a fixed cylinder that is configured to be fixed to a first structural body and formed into a cylindrical shape so as to comprise a hollow portion; a shaft member that is configured to be fixed to a second structural body, the shaft member being housed in the hollow portion of the fixed cylinder and having an outer peripheral surface provided with a helical thread groove; a nut member that is threadedly engaged with the shaft member, and converts an axial motion of the shaft member into a rotational motion; a rotor member that is formed into a cylindrical shape so as to cover the fixed cylinder and to form a cylindrical accommodation chamber between the rotor member and an outer peripheral surface of the fixed cylinder, and is rotated by the nut member; and viscous fluid that is sealed in the cylindrical accommodation chamber.