Patent ID: 6854773
Filing Date: 2005-02-15
Classification: E05B,Y10S,Y10T

Abstract:
1. A fire door lock mechanism, comprising: a body mounted on a fire door and formed with a handlebar and a drive mechanism operationally associated with the handlebar, for allowing a user to depress the handlebar to disengage the fire door lock mechanism, wherein the body comprises a lock shell for accommodating components of the drive mechanism, a bottom of the lock shell being coupled to a mount plate and a base plate having two ends: a handlebar mount having a recess for receiving the base plate; a pair of first horseshoe elements, connected to opposite ends of the base plate; a pair of second horseshoe elements, connected to opposite ends of a bottom of the handlebar; a pair of actuators, each bent to form a central portion and two end portions, wherein one of the end portions of each actuator is connected to a respective one of the second horseshoe elements, and the central portion of each actuator is connected to a respective first horseshoe element, such that the actuators receive a force from the handlebar via the second horseshoe elements to rotate the actuators; a push rod coupled to the other end portion of the actuators; a glide mount coupled to one end of the push rod to receive motion from the push rod; and a lock bolt coupled to the glide mount to receive motion from the glide mount.