Automatic film winder for camera

Details Automatic film winder for camera Automatic film winder for camera

1980-05-29

1981-06-23

Griffin, Donald A.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 711, 354212, G03B 104, B65H 7528

Patent

active

042747260

ABSTRACT:
An automatic film winding device for camera comprising the film winding member of which the outer peripheral portion at one end is formed larger in diameter than the other outer peripheral portion. The automatic film winding device for camera comprises a pressing means mounted on a camera body for pressing the narrowed leading end of the film against the outer peripheral surface of the film winding member at the position where the leading end of the film is received into the film winding chamber. The pressing means is so set that its pressing position corresponds to a part of the cut edge of the narrowed leading end portion of the film, and mounted on the inner surface of a back cover and urged by spring means so as to be capable of pressing the leading end of the film to the film winding member in the winding operation.

REFERENCES:
patent: 1386617 (1921-08-01), Gunderman
patent: 1930144 (1933-10-01), Lee
patent: 2741168 (1956-04-01), Schreiber
patent: 2989906 (1961-06-01), Rentschler
patent: 3002438 (1961-10-01), Trow
patent: 3484053 (1969-12-01), Rehn et al.
patent: 3567147 (1971-03-01), Engelsmann et al.
I.B.M. Technical Disclosure Bulletin, vol. 12, No. 8, Jan. 1970, p. 1305.

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