Automatic winder for film of camera

Abstract

Abstract PURPOSE:To eliminate the excess deviation of gear trains and prevent blurs by conducting electricity in a reverse direction to a motor instantaneously upon completion of winding, in an electrically driven winder of a camera for one-screen and one-hole film. CONSTITUTION:When a film is wound up to a prescribed position by a film winding mechanism, it fits from a perforation detecting member 15, and therefore a switch lever 16 operates a contact piece 26, and shifts the same to the contact piece S1 side. A motor runs reverse and tries to eliminate the backlash remained in gear trains 17-20, but an antireversing lever is driven by the engagement of a pawl 23 and a gear 20, by which a switch S3 is opened. Therefore, the motor stops after just a slight reverse run. No excess tension is left in the film, and the vibrations during shutter operation are not directly transmitted.

Inventors

• 👤 Susumu Fujita
• 👤 Yoichi Hamada

Bibliographic Details