Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent
1977-06-14
1979-02-06
Hafer, Robert A.
Machine element or mechanism
Mechanical movements
Rotary to or from reciprocating or oscillating
354195, 350187, F16H 1904
Patent
active
041377826
ABSTRACT:
Apparatus for the retracting and extending the lens holder of a camera, which comprises two gear wheels or gearwheel segments swingably supported about fixed axes on different sides of the longitudinal central plane of the lens holder, said gear wheels or gear-wheel segments being in direct or indirect engagement with each other, two stationary toothed members, two swingable segments coupling said lens holder and said gear wheels or gear-wheel segments, said gear wheels or gear-wheel segments, when swung, being operable to retract and extend said lens holder via said swingable segments and to move said swingable segments over the toothed segments as said lens holder is extended from its fully retracted position, such that with equal paths of swing of the gear wheels or gear-wheel segments, the lens holder is displaced by a larger amount in the vicinity of the retracted position than in the vicinity of the extended position.
REFERENCES:
patent: 2995061 (1961-08-01), Briskin et al.
patent: 3251285 (1966-05-01), Uterhart
patent: 3398666 (1968-08-01), Mamiya et al.
patent: 4021115 (1977-05-01), Jeppesen
patent: 4040070 (1977-08-01), Hinon et al.
Balde Werke GmbH & Co. KG
Hafer Robert A.
LandOfFree
Apparatus for retracting and extending of a lens holder of a cam does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for retracting and extending of a lens holder of a cam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for retracting and extending of a lens holder of a cam will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-886123