发明名称 Cameras with a film loading device for facilitating film loading
摘要 A camera includes an internal cover plate which is supported independently of a camera back cover for movement between covering and uncovering positions where it covers and uncovers a film take-up chamber respectively. When the internal cover plate is in the covering position, its inner surface contacts a leader portion of a film pulled out of a film cartridge received in a film cartridge chamber, for preventing a sprocket hole of the leader portion of the film having engaged one of sprocket pawls of a sprocket from being disengaged therefrom. The sprocket is provided at a position past an exposure station for transportation of the film toward the film take-up chamber. When the camera back cover is held in an open position, the film transportation by the sprocket is automatically effected by an electric motor in response to the movement of the internal cover plate from the uncovering position to the covering position and the leader portion of the film transported into the film take-up chamber is automatically wound around a spool by engagement of one of the sprocket holes with one of spool pawls of the spool. The film transportation in this case is automatically interrupted when an initial frame of the film comes in alignment with an exposure aperture at the exposure station. The internal cover plate is releasably locked in the covering position by a detent member.
申请公布号 US4477162(A) 申请公布日期 1984.10.16
申请号 US19820403998 申请日期 1982.08.02
申请人 MINOLTA CAMERA KABUSHIKI KAISHA 发明人 MATSUMOTO, TOSHIAKI
分类号 G03B1/56;G03B17/02;(IPC1-7):G03B1/24 主分类号 G03B1/56
代理机构 代理人
主权项
地址