Fire actuated release mechanism to separate electronic door lock from fire door

Disclosed is an electronic door lock (12). The lock (12) includes a housing mechanically mountable to a first side of a fire door (10), wires (22) extending out of the housing and into the fire door (10) and a circuit board mounted within the housing. A fire actuated mechanical release mechanically...

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Bibliographic Details
Main Authors ELLIS DAVID D, LOWDER SCOTT B, LORELLO MICHAEL J, LEITES RICK
Format Patent
LanguageEnglish
Published 26.06.2015
Subjects
ACCESSORIES THEREFOR
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
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Summary:Disclosed is an electronic door lock (12). The lock (12) includes a housing mechanically mountable to a first side of a fire door (10), wires (22) extending out of the housing and into the fire door (10) and a circuit board mounted within the housing. A fire actuated mechanical release mechanically releases the housing from a first side of the fire door (10) when a second side of the fire door (10) is exposed to a fire. A fire actuated electrical release electrically and mechanically disconnects the wires (22) from the circuit board when the second side of the fire door (10) is exposed to a fire. The mechanical release and electrical release cooperate to release the housing from connection to the first side of the fire door (10) and allow the housing to move sufficiently away from the fire door (10) to prevent ignition of any components of the electronic door lock (12) when the second side of the fire door (10) is exposed to a fire.
Bibliography:Application Number: NZ20120625768