Film winding mechanism

Details Film winding mechanism Film winding mechanism

1978-09-05

1980-06-24

Gonzales, John

354206, G03B 1742, G03B 1912

Patent

active

042092469

ABSTRACT:
A camera winding mechanism for advancing the film and loading the shutter has a stop mechanism to prevent over rotation of the film sprocket shaft. In one embodiment a frictional brake ring mounted on the shaft engages a protrusion on the mirror charge lever to inhibit rotation of the sprocket when the film advance lever has reached the limit of travel. In a second embodiment, a pawl element is used to engage the protrusion.

REFERENCES:
patent: 2511215 (1950-06-01), Mihalyi
patent: 3221626 (1965-12-01), Fuketa
patent: 3580154 (1971-05-01), Ettischer
patent: 4003268 (1977-01-01), Shimizu
patent: 4047208 (1977-09-01), Kawaguchi

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