초록 ▼

A photographic camera which is fully automated in the film winding and rewinding operations is provided. In one form of the present camera, the film winding operation may be automatically moved into the film rewinding operation by detecting the end of the film, for example, by detecting the fact tha

A photographic camera which is fully automated in the film winding and rewinding operations is provided. In one form of the present camera, the film winding operation may be automatically moved into the film rewinding operation by detecting the end of the film, for example, by detecting the fact that the tension of the film has exceeded a predetermined level. In another form, a planet gear mechanism is provided in the power transmission train so as to minimize the consumption of energy. In a further form, the camera is provided with an automatic film loading or setting mechanism and an alarm unit for generating an alarm signal when the failure of automatic film setting has been detected. In a still further form, the camera may be operated without film loaded in the camera.

대표청구항 ▼

A photographic camera for automatically winding a film loaded therein to a spool and rewinding said film from said spool on a frame by frame basis, comprising: a driving motor which is driven to rotate in a first direction which corresponds to a winding direction of said film and driven to rotate in

A photographic camera for automatically winding a film loaded therein to a spool and rewinding said film from said spool on a frame by frame basis, comprising: a driving motor which is driven to rotate in a first direction which corresponds to a winding direction of said film and driven to rotate in a second direction which is opposite to said first direction and corresponds to a rewinding direction of said film; first power transmission means having a first end operatively connected to said driving motor for transmitting a driving power received from said driving motor to its second end; second power transmission means having a first end operatively connected to said second end of said first power transmission means and a second end connected to a first shaft of said camera, said spool being rotatably mounted on said first shaft; third power transmission means having a first end and a second end which is in power transmitting relation with said second end of said first power transmission means and operatively connected to engageable means for engaging a second shaft around which said film is initially wound; and first clutch means for operatively connecting said second end of said first power transmission means to said first end of said third power transmission means when said motor is driven to rotate in said second direction and disconnecting said second end of said first power transmission means from said first end of said third power transmission means when said motor is driven to rotate in said first direction.