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:
Dec. 07, 2010
Filed:
Nov. 30, 2007
Hideki Kuwajima, Kyoto, JP;
Yasuchika Kudo, Fukui, JP;
Hideki Kuwajima, Kyoto, JP;
Yasuchika Kudo, Fukui, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An opening and closing device to be used in a variety of electronic apparatuses is disclosed, and the opening and closing device can be manufactured at a low cost and ensures a positive opening/closing action. After the reversing cam moves along an axial line, a movable cam protruding on an inner wall of a ring-like movable unit elastically urges against a reversing cam. While the movable cam is held at a given angle, the movable cam elastically urges against the reversing cam and rotates, so that a stationary unit needs no stationary cam during this given angle being kept. The stationary unit thus needs the stationary cam on its outer wall only in part but not entirely. As a result, the stationary unit can be manufactured with ease by forming process.