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:
Jul. 17, 2012
Filed:
Jan. 23, 2009
Fumio Shinano, Osaka, JP;
Tetsuya Uno, Osaka, JP;
Norihiko Saka, Osaka, JP;
Kazuaki Matsui, Osaka, JP;
Fumio Shinano, Osaka, JP;
Tetsuya Uno, Osaka, JP;
Norihiko Saka, Osaka, JP;
Kazuaki Matsui, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A lens barrel of the present invention includes a fixing frameprovided with cam grooves-formed in an inner circumferential surface of the fixing frame, and a drive frameprovided with cam followers-formed on an outer circumferential surface of the drive frame and a plurality of engaging teethprovided to the outer circumferential surface of the drive frame so as to be located on substantially the same circumference as the cam followers-. The drive frameis adapted such that, with the drive frame incorporated in the fixing frame, the cam followers-are fitted in the cam grooves-, drive force is transmitted via the engaging teeth, and the drive framecan move relative to the fixing framein the optical axis direction of a lens as the cam followers-move along the cam grooves-. According to the present invention, it is possible to provide a lens barrel in which cam followers are less likely to come out of the cam grooves even in the case where a retainer wall cannot be provided within an area where a cam follower about to fall out is received directly by the wall, or in the case where the retainer wall provided within the area where a cam follower is received directly is not sufficient.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile