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. 22, 2011
Filed:
Jun. 27, 2008
Toshiyuki Nakada, Osaka, JP;
Hideaki Kawane, Osaka, JP;
Hiroyasu Fujinaka, Osaka, JP;
Itaru Enguchi, Nara, JP;
Toshiyuki Nakada, Osaka, JP;
Hideaki Kawane, Osaka, JP;
Hiroyasu Fujinaka, Osaka, JP;
Itaru Enguchi, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A collapsible lens barrel is provided, including a mechanism capable of reliably inhibiting rotation of a rotational barrel even if any impact is applied thereto, for example, due to a fall with the barrel being extended. When the rotational barrel is pressed upon a fixed member due to impact in defiance of the biasing force of a wave spring, a first engagement portion provided at a camera body-side end of the rotational barrel engages with second engagement portions provided on a subject-side surface of the fixed member, which locks rotation of the rotational barrel, thereby making it possible to prevent gears from being damaged, for example.