Browse Prior Art Database

PLATEN LATCH Disclosure Number: IPCOM000023556D
Original Publication Date: 1978-Feb-28
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal


A latch 10 intended for use in a copier machine insures that the copier platen cover remains closed during the copy cycle. A solenoid 12 when activated draws a dead bolt 14 across the latch tongue lOa, locking the cover. An interlock switch 16 is tripped by an actuator 18 which closes the circuit allowing the copy run cycle to start. At the end of the copy cycle, the solenoid is deactivated and a return spring 22 slides the dead bolt 14 in the opposite direction, releasing the latch tongue lOa and allowing the platen cover to be opened and a new copy inserted. The latch tongue lOa is designed in such a manner that if the platen cover is not closed completely-the solenoid engagement of the dead bolt is blocked. Therefore, the interlock switch cannot be tripped and the machine will not start.