Supporting device for supporting a roll film in a camera
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorHeizo Kawaguchi
Life of this patent
Estimating the term…
Abstract
A roll of film placed in a camera is restrained from completely free movement by a lever which frictionally engages the support shaft holding the film roll. When the leader is wound on the take up roll, the friction on the support shaft prevents bunching or misalignment of the film by keeping it taut. When the camera back is closed the lever is moved so as to be out of frictional engagement with the support shaft.
Claims4
In a camera of the type having, a support shaft for engaging and rotating with a film roll, a take-up spool for receiving the leader part of the film from said film roll and a back cover which can be opened to load and unload film rolls and is closed during picture-taking operation, the improvement comprising, means operative only when said back cover is open to frictionally restrict the unwinding of said film from said film roll said means engaged with said support shaft only when said back cover is open.
Dependencies are inferred from the claim text.