Film advancing and rewinding device for a camera

Details Film advancing and rewinding device for a camera Film advancing and rewinding device for a camera

1989-02-09

1990-10-30

Mathews, A. A.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

354204, 354214, 242 716, G03B 112

Patent

active

049672134

ABSTRACT:
A film advancing and rewinding device for a camera which reduces the number of parts to nearly one-half those in a conventional film advancing and rewinding device. The device includes a film take-up spool, a reversible motor installed inside the spool and provided with built-in reduction gears for rotating the spool, a group of gears for transmitting rotational force from the spool to a sprocket engaging film, and a rotational force disconnecting mechanism located in said group of gears which disconnects the rotational force from the spool to the sprocket when film is rewound or when the rotational speed of the sprocket by movement of the film is faster than that produced by the group of gears.

REFERENCES:
patent: 4401377 (1983-08-01), Sato et al.
patent: 4482226 (1984-11-01), Tamamura
patent: 4589604 (1986-05-01), Yagi et al.
patent: 4821059 (1989-04-01), Nakanishi et al.

Affiliated with

Also associated with

Rating

Film advancing and rewinding device for a camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Film advancing and rewinding device for a camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film advancing and rewinding device for a camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-277562