Film cartridge ejector for photographic system

Details Film cartridge ejector for photographic system Film cartridge ejector for photographic system

1995-05-19

1996-06-25

Hayes, Monroe H.

354275, G03B 1910

Patent

active

055305040

ABSTRACT:
An ejector mechanism is provided for use in any system which uses photographic film, such as cameras, film development equipment and any other systems designed for film cartridges. One embodiment of the ejector mechanism includes an ejector slide, an ejector slide spring, a trigger lever, a trigger lever spring, a cover plate and a loading chamber. The ejector slide includes a spring hook, a first guide pin, a second guide pin, a trigger lever tab, a trigger lever notch and a film cartridge pin. The trigger lever includes a trigger lever spring attachment, a trigger lever slot, a pawl, a trigger lever head and a trigger control tab. The cover plate includes a ejector spring attachment, a trigger spring hook, a first guide slot and a trigger control ramp. The first guide slot engages the first guide pin attached to the ejector slide to support first guide pin movement along the first guide slot. The first guide slot further includes a latch tab and a latch slot. The loading chamber, which receives a film cartridge endwise, i.e. axially, includes a second guide slot, a trigger lever guide pin and a film cartridge access slot. The second guide slot engages the second guide pin attached to the ejector slide to support second guide pin movement along the second guide slot. The ejector slide spring is positioned on the ejector spring attachment and the spring hook. The trigger lever spring is positioned on the trigger spring hook and the trigger lever spring attachment. The ejector slide and the trigger lever are positioned between the loading chamber and the cover plate.

REFERENCES:
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patent: 5323210 (1994-06-01), Richiuso et al.
patent: 5382992 (1995-01-01), Kawamura et al.
patent: 5430515 (1995-07-01), Lawther et al.
JP5-150342, Patent Abstract of Japan, Noriyasu Kotani, Camera With Ejector, Jun. 18, 1993.

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