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. 10, 2009
Filed:
Dec. 10, 2004
Hitoshi Sato, Tokyo, JP;
Sakae Higano, Tokyo, JP;
Hitoshi Sato, Tokyo, JP;
Sakae Higano, Tokyo, JP;
Mitsubishi Steel Mfg. Co., Ltd., Tokyo, JP;
Abstract
Two-shaft hinge mechanism components enabling harness wiring are provided to realize durability, reduction in size and weight and a mechanism to restrict rotation, in cellular phones, notebook computers and remote controllers required to have a smaller size, less weight and new functions. Rotation shaft and opening/closing shaft are inserted into coil spring, concave and convex cams, and a caulking component, to assemble a rotation shaft torque unit and an opening/closing torque unit. The units are attached to a hinge housing to constitute the two-shaft hinge. The opening/closing torque unit is disposed either on the left or right side of the hinge housing. A pipe-like shaft with a hollow is employed as rotation shaft, whereby harness wiring is provided easily. The torque unit is configured independently from the rotation shaft and the opening/closing shaft to achieve generation of a stable torque and click, improvement of durability, easy assembly of the components, reduction of size and weight by reducing the number of components, and ensuring of space by disposing the components in a concentrated manner.