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Patent Searching and Data


Title:
FILM REWINDING DEVICE OF CAMERA
Document Type and Number:
Japanese Patent JPS5863928
Kind Code:
A
Abstract:

PURPOSE: To avoid an unnecessary increase of the film winding resistance, by performing the contact and release of a clutch including a magnetic member through the magnetic attachment/detachment between the magnetic member and a film rewinding member.

CONSTITUTION: A rewind lever 1, a clutch 2 and a rewind spool shaft 3 are made of a magnetic material like magnets, iron, etc. The magnetic adsorbing force between the lever 1 and the clutch 2 is set larger than that between the clutch 2 and the shaft 3. As a result, the connection between a rewind handle 6 and the shaft 3 is released to wind a film. The handle 6 does not rotate even if the shaft 3 turns. Accordingly, an unnecessary increase of the film winding resistance, and the lifetime of a power supply is eliminated.


Inventors:
WATANABE YASUKAZU
Application Number:
JP16198781A
Publication Date:
April 16, 1983
Filing Date:
October 13, 1981
Export Citation:
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Assignee:
KONISHIROKU PHOTO IND
International Classes:
G03B17/00; G03B1/02; (IPC1-7): G03B17/00
Attorney, Agent or Firm:
Fumio Sato