Device for indicating the advancing of film in a camera being taken up or rewound
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorKatsuhiko Nomura
Life of this patent
Estimating the term…
Abstract
A camera in which a roll of film is employed is provided with a device for indicating the advancing of film being taken up or rewound. A friction member is rotatably mounted on the film take-up spool shaft but does not rotate with the shaft unless film is wound around the friction member. The friction member is provided with a cam portion which is engaged by one end of an indication lever. The other end of the indication lever is provided with a striped or other pattern which is viewable through a window in the camera body. Alternatively, a portion of the friction member could be directly viewed through the window.
Claims3
In a camera employing a roll of film and having a film take-up spool mounted on a spool shaft, a device for indicating the advancing of the film being taken up or rewound comprising:
- a friction member rotatably mounted on said spool shaft, said friction member rotating with said spool shaft only when film is wound around said friction member, and
- means viewable from the outside of the camera for indicating the rotation of said friction member.
Dependencies are inferred from the claim text.