Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1977-01-25
1978-05-16
McCarthy, Edward J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
354212, 354214, G03B 106
Patent
active
040894835
ABSTRACT:
A film feeding device for a camera including a rotatable center shaft member having a protrudent clutch pin, the center shaft being movable alone in the direction of its axis; a rotatable film feeding sprocket which has a slot to allow the protrudent pin to engage therewith and which thus moves together with the center shaft member when the center shaft rotates; a drive device which is provided with a clutch groove to allow the protrudent pin to engage with and disengage from the clutch groove, the drive device being arranged to rotate in response to a film winding operation. When the center shaft shifts to one side defined by the slot, the protrudent clutch pin comes to engage with the clutch groove to cause the sprocket to rotate in response to the film winding operation. When the center shaft shifts to the other side, the protrudent clutch pin is disengaged from the clutch groove to permit free rotation of the sprocket. Thus, rotation of the sprocket is controlled by means of the single protrudent pin in such a manner as to minimize variation in spacing between one photographed picture and another.
REFERENCES:
patent: 3485156 (1930-12-01), Takahashi
patent: 3621770 (1971-11-01), Tsuruoka
patent: 3645182 (1972-02-01), Kimura
patent: 3757660 (1973-09-01), Kuramoto
patent: 3967291 (1976-06-01), Nagashima
Hokkanji Sakae
Iura Yukio
Shimizu Masami
Sunouchi Akio
Watanabe Yoshiaki
Canon Kabushiki Kaisha
McCarthy Edward J.
LandOfFree
Film feeding device for 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 feeding device for camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film feeding device for camera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1194137