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:
Apr. 17, 2007
Filed:
Nov. 30, 2005
Hidenori Kanno, Tokyo, JP;
Ryota Shimura, Tokyo, JP;
Masanori Itagaki, Tokyo, JP;
Kabushiki Kaisha Somic Ishikawa, Tokyo, JP;
Abstract
A rotary damper is provided which can include a valve () which automatically varies a flow rate of a viscous fluid passing through fluid passages (a,b) in correspondence with variation in load. The valve () comprises a leaf spring. The flow rate-adjusting portion (g) constituting the valve () is provided so as not to close the fluid passages (a,b) when no load is applied and bends so that its one surface side projects when no load is applied and becomes deformed in a direction in which the fluid passage (b) is closed when receiving pressure of the viscous fluid on its one surface side. The flow rate of the viscous fluid passing through the fluid passage (b) is adjusted depending on a degree of deformation of the flow rate-adjusting portion (g) corresponding to magnitude of pressure of the viscous fluid applied to one surface side of the flow rate-adjusting portion (g). The flow rate-adjusting portion (g), when receiving pressure of the viscous fluid on its other surface side, keeps the fluid passages (a,b) open at all times.