Drive force transmission mechanism having inclined drive shaft f

Details Drive force transmission mechanism having inclined drive shaft f Drive force transmission mechanism having inclined drive shaft f

1997-09-11

2000-03-21

Blankenship, Howard B.

Photography

With film drive

Mechanical detail

G03B 100

Patent

active

060394765

ABSTRACT:
Drive force transmission device for a camera, namely, a film drive mechanism for a camera, in which a drive force of a motor is transmitted through a differential gear mechanism to a wind shaft and a rewind shaft and is also transmitted through a screw gear to a spool shaft or a fork shaft whereby operations of winding and rewinding film are performed. The rewind shaft is placed in such a manner as to be inclined to the drive shaft of the differential gear mechanism. Moreover, a fork shaft and a spool shaft to be driven by film at the time of winding or rewinding the film can be driven even when the screw gear and the helical gear remain engaged with each other. This film drive mechanism occupies only a small space and is small in weight and is advantageous for the cost thereof.

REFERENCES:
patent: 4304480 (1981-12-01), Fukahori et al.
patent: 4351595 (1982-09-01), Date et al.
patent: 5337108 (1994-08-01), Kaihara et al.

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