Multi-motor film feeding device with planetary gearing

Details Multi-motor film feeding device with planetary gearing Multi-motor film feeding device with planetary gearing

1995-05-24

1998-04-07

Nguyen, John Q.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Automated stop or reverse

2423321, 242357, 2423331, 396408, G03B 2143, G03B 158

Patent

active

057354758

ABSTRACT:
A film feeding device for a camera uses first and second electric motors associated with first and second planetary gearing mechanisms, respectively. In one embodiment, the first motor and first planetary gearing mechanism drive a spool shaft of a film cartridge to supply film to a winding spool. The winding spool is driven by the second motor and second planetary gearing mechanism to wind film onto the winding spool, at which time the first motor is stopped and the first planetary gearing mechanism is automatically disconnected from the spool shaft. For rewinding, the second motor is operated in reverse and the second planetary gearing mechanism is automatically disconnected from the winding spool and connected to the spool shaft of the film cartridge. In a second embodiment, the first motor and the first planetary gearing mechanism are employed to drive the spool shaft of the film cartridge in a film supply direction or a film rewind direction, and the second motor and the second planetary gearing mechanism are only used to drive the winding spool in a film winding direction.

REFERENCES:
patent: 4586801 (1986-05-01), Nishizawa et al.

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