Integral safety interlock latch mechanism

Details Integral safety interlock latch mechanism Integral safety interlock latch mechanism

1998-01-08

2000-02-29

Royer, William

Electrophotography

Machine operation

Electrical connection

3242072, G03G 1500

Patent

active

060320044

ABSTRACT:
An interlock/latch system for a machine cover, particularly for an electrophotographic printing machine. A cover latch is provided with a latching mechanism and a set of electrical contacts which are mechanically closed when the cover is closed and the latch engaged. A sensor such as a Hall-Effect sensor is mounted in close proximity to the latch. A magnet in the cover actuates the Hall-Effect sensor when the cover is closed and latched sending a signal to the machine controller. The machine controller prohibits operation of the machine until the signal is received.

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patent: 4917414 (1990-04-01), Boulanger
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patent: 5216246 (1993-06-01), Weldman et al.
patent: 5590809 (1997-01-01), Prescott et al.
JP362069277A, Tamura, Takashi, `Copying Machine with Interlock Switch`, Mar. 30, 1987.
United States Statutory Invention Registration: Reg. No. H43, Published Apr. 1, 1986 Inventor: Michaels.

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