1981-01-30
1982-07-20
Gellner, Michael L.
G03B 118
Patent
active
043402909
ABSTRACT:
An electric rewind device for a camera having a clutch device for causing a sprocket operatively associated with a wind-up mechanism for feeding a roll film wound on a spool in a film magazine to be disconnected from the wind-up mechanism. A rewind coupling capable of being coupled to the spool is driven by a motor to effect film rewind operation and includes a first operating member engageable with the clutch device and movable between a first position for connecting the wind-up mechanism and the sprocket and a second position for breaking the connection between the two. A second operating member operatively associated with the rewind coupling is movable between a third position for disengaging the rewind coupling from the spool and a fourth position for causing the two to engage each other, and means are provided for blocking the movement of the second operating member to the fourth position in response to the movement of the first operating member to the first position and for releasing said blocking in response to the movement of the first operating member to the second position.
REFERENCES:
patent: 4194824 (1980-03-01), Arai et al.
Matsukawa Nobuo
Sekine Kenji
Gellner Michael L.
Nippon Kogaku K.K.
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