Take-up assembly for automatic film loading of camera

Details Take-up assembly for automatic film loading of camera Take-up assembly for automatic film loading of camera

1981-12-17

1983-10-25

Mathews, Alan

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 714, G03B 104

Patent

active

044115091

ABSTRACT:
A take-up assembly for automatic film loading comprises a film take-up spool sleeve having a notch window formed therein for receiving a film catch member, a spool shaft rotatably fitted inside the spool sleeve and supported by a camera body so as to present a given magnitude of friction for its rotation relative to the body, a catch member rotatably mounted on the spool shaft and having a pawl which is disposed inside the notch window for fitting engagement with one of perforations formed in a perforated roll film, a first spring for causing the catch member to project out of the notch window during a film loading operation, and a second spring for causing the spool sleeve to rotate through a given angle relative to the spool shaft for receiving the catch member inside the notch window.

REFERENCES:
patent: 3377935 (1968-04-01), Furusawa
patent: 3377936 (1968-04-01), Goshima et al.
patent: 4274726 (1981-06-01), Yoneyama et al.

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