FILM FEEDER FOR CAMERA

PURPOSE:To take-up and rewind a film with the normal rotation of a motor and to execute other works with reverse rotation, by providing a torque detection mechanism for detecting a specified torque at the time of completing the taking-up of all the film and making a planetary clutch mechanism link w...

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Bibliographic Details
Main Authors HIRAI MASAYOSHI, SATO MUNEYOSHI, KAMEYAMA NOBUYUKI, NISHIZAWA TETSUO, ONDA KAZUHIKO
Format Patent
LanguageEnglish
Published 13.03.1989
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PURPOSE:To take-up and rewind a film with the normal rotation of a motor and to execute other works with reverse rotation, by providing a torque detection mechanism for detecting a specified torque at the time of completing the taking-up of all the film and making a planetary clutch mechanism link with a film rewinding mechanism. CONSTITUTION:By the eneragizing force of the spring 44 of an engaging lever 38 and the spring 48 of the torque detection lever 46, the planetary gear 30 meshes with the gear 32 of a film taking-up mechanism and the film which is not shown in a drawing is taken up to a spool 76. Next, at the time of completing the take-up of the film, the spool 76 can not be rotated. When a motor 10 tries to rotate in such a state, the torque detection lever 46 turns counterclockwise and the gear 30 is linked with the rewinding mechanism and the film is rewound into a cartridge. When a zoom knob 136A is held on a teleposition, the rotational force from the motor 10 transmits the clockwise rotating force to the gear 32. Then a lens barrel 120 can be contained.
Bibliography:Application Number: JP19870223655