Instant film unit advancing apparatus
This invention relates to a instant film unit advancing apparatus used for an instant camera or an instant printer to perform a diffusion transfer development while advancing the film unit. An instant film unit advancing apparatus of reduced size, which avoids failure of a discharging film unit when...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
03.12.2002
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Online Access | Get full text |
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Summary: | This invention relates to a instant film unit advancing apparatus used for an instant camera or an instant printer to perform a diffusion transfer development while advancing the film unit.
An instant film unit advancing apparatus of reduced size, which avoids failure of a discharging film unit when a slip arises between a pair of spreading rollers and the film unit. Components to drive and support the pair of rollers and a picking claw for thrusting the film unit to a bite of the pair of rollers are arranged within the width of a film unit pack. Spreading rollers supporting means support a surface of the spreading rollers, and a driving power source unit includes a motor and a reducing gear train whose shafts are parallel to the spreading rollers. A rotating cam shaft moves the picking claw, which is also parallel to the spreading rollers, instead of a large cam plate used in conventional apparatuses. The cam shaft and a featured mechanism keep rotation of the spreading rollers independent from a cam mechanism for moving the picking claw. |
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