Sliding movement locking apparatus and sliding cover apparatus f

Details Sliding movement locking apparatus and sliding cover apparatus f Sliding movement locking apparatus and sliding cover apparatus f

1999-05-13

2000-07-11

Blankenship, Howard B.

Photography

Camera detail

Lens cover

G03B 1700

Patent

active

060862661

ABSTRACT:
A sliding movement locking apparatus for a sliding cover of a camera includes a lens barrel, a sliding cover, a drive member which is moved in association with the movement of the lens barrel and which is provided with a rack, a first gear which engages with the rack of the drive member, a second gear coaxial and relatively rotatable to the first gear, a sliding movement locking member which is provided with a rack which engages with the second gear and which is moved to prevent the movement of the sliding cover into a closed position thereof when the locking member is at the forward extremity of movement, and a clutch mechanism is provided between the first and second gears, for rotating the first and second gears together without play therebetween when the lens barrel is moved from the retracted position to the photographing position, and for initially rotating the first gear by a predetermined angle and thereafter rotating the first and second gears together when the lens barrel is moved from the photographing position to the retracted position. The invention is also directed to a sliding cover apparatus for a camera.

REFERENCES:
patent: D387368 (1997-12-01), Matsuda
patent: 4522478 (1985-06-01), Kando et al.
patent: 5708884 (1998-01-01), Morishita
patent: 5819127 (1998-10-01), Yokota
patent: 5822634 (1998-10-01), Morishita

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