Document Type and Number:
Japanese Patent JPS5089033
Kind Code:
A
Abstract:
A cartridge loaded film projector includes film driving and sound pickup components and apparatus for automatically engaging and positioning the film with respect to these components when a cartridge is inserted into the projector. A pressure roller and pressure pad are mounted within the projector on a pivotably mounted frame. The frame is normally biased out of the cartridge's path within the projector but an actuating arm attached to the frame extends into the path. When a cartridge is inserted along the path, it engages the arm and thereby pivots the frame and thus the roller and pad to engage the film and position it against the projector's film driving and sound pickup components. The cartridge holds the frame in position while inserted, but the frame automatically returns the roller and pad to inoperable positions upon cartridge removal. The projector and all cartridges are constructed so that the cartridges may be varied in size.
Application Number:
JP9661974A
Publication Date:
July 17, 1975
Filing Date:
August 22, 1974
Export Citation:
International Classes:
G03B31/00; G03B21/32; G03B31/02; (IPC1-7): G03B31/00