Photographic camera
AssigneeFuji Photo Film Co., Ltd.
InventorKiyotaka Kobayashi
Life of this patent
Estimating the term…
Abstract
A photographic camera has a magazine chamber which is opened and closed by a light-shielding lid. A film magazine which has a magazine body provided with a film exit slit and a light-shielding door for opening and closing the film exit slit is loaded in the magazine chamber. A light-shielding door opening and closing mechanism opens and closes the light-shielding door of the film magazine loaded in the magazine chamber. An electric motor is disposed in the camera and provides the light-shielding door opening and closing mechanism with driving force for opening and closing the light-shielding door. A controller causes the light-shielding door opening and closing mechanism to open and close the light-shielding door under the driving force provided by the electric motor when the light-shielding lid is closed.
Claims18
A photographic camera having a magazine chamber which is opened and closed by a light-shielding lid and in which is loaded a film magazine comprising a magazine body provided with a film exit slit and a light-shielding door for opening and closing the film exit slit, said camera comprising:
- a light-shielding door opening and closing mechanism which opens and closes the light-shielding door of the film magazine loaded in the magazine chamber;
- an electric motor which is disposed in the camera and provides the light-shielding door opening and closing mechanism with a driving force for opening and closing the light-shielding door, the driving force of said electric motor is also used for feeding the film;
- and
- a control means which causes the light-shielding door opening and closing mechanism to open and close the light-shielding door under the driving force provided by the electric motor when the light-shielding lid is closed;
- wherein said light-shielding door opening and closing mechanism comprises a light-shielding door driving member which is brought into engagement with the light-shielding door and is rotated to open and close the light-shielding door, and a driving force transmitting mechanism which receives the driving force of the electric motor from a part of a film feed mechanism which is driven by said electric motor and transmits the driving force to the light-shielding door driving member only when the light-shielding door is to be closed or opened, said driving force transmitting mechanism for opening and closing the light-shielding door comprises a sun gear which forms a part of the film feed mechanism, a planetary gear in mesh with the sun gear, a revolution limiting mechanism which selectively prevents and permits revolution of the sun gear and an engagement member which is actuated by rotation of the sun gear to be engaged with the light-shielding door opening and closing mechanism.
A photographic camera having a magazine chamber which is opened and closed by a light-shielding lid and in which is loaded a film magazine comprising a magazine body provided with a film exit slit, a light-shielding door for opening and closing the film exit slit and a spool around which a roll film is wound and which is supported for rotation in the magazine body and is rotated to feed out or rewind the film through the film exit slit, which camera characterized by having
- an electric motor,
- a spool rotating member which is engaged with the spool of the film magazine loaded in the magazine chamber and is driven by the electric motor to rotate the spool,
- a light-shielding door opening member which is engaged with the light-shielding door of the film magazine loaded in the magazine chamber and is driven by the electric motor to open the light-shielding door, and
- a driving mechanism which transmits the driving force of the electric motor to the light-shielding door opening member before the spool rotating member so that the spool is rotated after the light-shielding door is opened.
A photographic camera having a magazine chamber which is opened and closed by a light-shielding lid and in which is loaded a film magazine comprising a magazine body provided with a film exit slit and a light-shielding door for opening and closing the film exit slit, said camera comprising:
- a motor;
- a light-shielding door opening and closing mechanism which opens and closes the light-shielding door of the film magazine loaded in the magazine chamber, said opening and closing mechanism comprising a light-shielding door driving member which is brought into engagement with the light-shielding door and is rotated to open and close the light-shielding door, and a driving force transmitting mechanism for opening and closing the light-shielding door which receives the driving force of said motor from a part of a film feed mechanism which is driven by said motor and transmits the driving force to the light-shielding door driving member only when the light-shielding door is to be closed or opened, said driving force transmitting mechanism comprises a sun gear which forms a part of the film feed mechanism, a planetary gear in mesh with the sun gear, a revolution limiting mechanism which selectively prevents and permits revolution of the sun gear and an engagement member which is actuated by rotation of the sun gear to be engaged with the light-shielding door opening and closing mechanism;
- and
- a control means which causes the light-shielding door opening and closing mechanism to open and close the light-shielding door under the driving force provided by the motor when the light-shielding lid is closed.
A photographic camera having a magazine chamber which is opened and closed by a light-shielding lid and in which is loaded a film magazine comprising a magazine body provided with a film exit slit and a light shielding door for opening and closing the film exit slit, said camera comprising:
- means for feeding the film by rotating a spool on which the film is disposed;
- means for opening the light-shielding door;
- control means for, when the light-shielding door is closed, causing said feeding means to rotate the spool in a direction of winding up the film onto the spool and simultaneously opening the light-shielding door and, after said light-shielding door is opened, said control means causing the spool to rotate in a reverse direction to feed the film out of the film magazine.
A photographic camera having a magazine chamber which is opened and closed by a light-shielding lid and in which is loaded a film magazine comprising a magazine body provided with a film exit slit and a light-shielding door for opening and closing the film exit slit, said camera comprising:
- a light-shielding door opening and closing mechanism which opens and closes the light-shielding door of the film magazine loaded in the magazine chamber;
- an electric motor which is disposed in the camera;
- a lifter which is driven by a drive force of said motor after the light-shielding lid is unlocked for lifting said film magazine from a loaded position in said magazine chamber to a removal position where said film magazine can be taken out of the chamber.
Dependencies are inferred from the claim text.