Patent
1979-05-30
1981-07-07
Gonzales, John
G03B 1704
Patent
active
042771579
ABSTRACT:
The lens tube retraction mechanism for a camera having a lens tube which is slidable relative to a body of the camera between a photographing position and a retracted position includes on each of the opposite sides of the camera a roller which is engaged with part of the lens tube, a pusher lever capable of fixing the lens tube at the photographing position by holding the roller, and an intermediate lever having a slot for allowing a shaft portion of the roller to pass therethrough, for moving the roller, enabling the lens tube to take the photographing position and the retracted position.
When the lens tube is retracted by pushing the intermediate lever inwards, the pusher lever is first moved upwards by the intermediate lever so as to be disengaged from the roller, whereby the lens tube can be retracted lightly although the lens tube can be held tightly when it is projected at the photographing position. Furthermore, in the intermediate lever, a spring and a pin are disposed for positioning the roller at the same position in a slot of the intermediate lever, whereby the tilting of the lens tube is prevented when the lens tube is projected and retracted.
Miyagawa Fumihiro
Sawabe Kousaku
Gonzales John
Ricoh & Company, Ltd.
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