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:
Mar. 17, 1981
Filed:
Jul. 12, 1979
Keisuke Haraguchi, Ranzan, JP;
Susao Nakamura, Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An automatic film winding device in a camera in which a camera winding coupling is coupled to a motor drive side through a power transmission mechanism having a cam and a follower. The device comprises a cam system having a first cam for maintaining a motor drive circuit energized and a second cam for a film winding operation in said camera. After a release operation in the camera the motor drive circuit is energized in association with restoration of a camera release button or a shutter. The follower is displaced to the first cam by the relative motion of said first cam and follower caused by the further rotation of said motor, to maintain the motor drive circuit energized. After the completion of winding operation in the camera, the second cam is disengaged from the follower by the relative motion of the second cam and follower to deenergize the motor drive circuit.