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:
Oct. 12, 2021
Filed:
Mar. 12, 2018
Oiles Corporation, Tokyo, JP;
Ryohei Kaneko, Fujisawa, JP;
OILES CORPORATION, Tokyo, JP;
Abstract
Provided is a rotary damper on which the timing for generating a damping torque can be set freely. Groove-like bypass passages () that are longer in the circumferential direction than vanes () are formed in the upper surface () of a torque regulation plate () arranged on the bottom part () of a cylindrical circular chamber (). When the rotor () rotates in a first rotational direction R, if both end faces () of the vanes () are positioned within a range of the respective bypass passages (), each area () and the corresponding area () are communicated via the corresponding bypass passage (), enabling movement of a viscous fluid () from the area () to the area (). Subsequently, if the rotor () rotates further in the first rotational direction Rand one or both of the end faces () of each vane () is outside of the range of the corresponding bypass passage (), each area () and the corresponding area () are not communicated via the corresponding bypass passage (), and the viscous fluid () is unable to move from each area () to the corresponding area ().