초록 ▼

A door lock for use particularly with sliding patio doors. The lock assembly includes a rotary actuator (door knob) connected to a shaft which drives a crank connected, in turn, to one or more spring-biased bolt rods and operable through the crank to shift the bolt rod to its spring-biased, door-loc

A door lock for use particularly with sliding patio doors. The lock assembly includes a rotary actuator (door knob) connected to a shaft which drives a crank connected, in turn, to one or more spring-biased bolt rods and operable through the crank to shift the bolt rod to its spring-biased, door-locking position. Stops are positioned to stop the movement of the crank in the locking and unlocking positions of the bolt rod, respectively. Rotary interengaging means such as a pair of meshing gears releasably connect the crank to the shaft assembly. A latch maintains the spring-biased bolt rod releasably in its door-locking position when the gears are meshed. A trip disengages the gear when the bolt rod is in its spring-biased, door-locking position, thereby actuating automatic unlocking of the door.

대표청구항 ▼

A door lock comprising: (a) a rotary actuator, (b) means for mounting the actuator on the door, (c) a shaft assembly connected for rotary movement to the actuator, (d) at least one spring-biased bolt rod mounted on the door for reciprocation between door-locking and door-unlocking positions, (e) a c

A door lock comprising: (a) a rotary actuator, (b) means for mounting the actuator on the door, (c) a shaft assembly connected for rotary movement to the actuator, (d) at least one spring-biased bolt rod mounted on the door for reciprocation between door-locking and door-unlocking positions, (e) a crank connected to the bolt rod and operable to shift the bolt rod to its spring-biased door-locking position, (f) stop means positioned to stop the movement of the crank in the locking and unlocking positions of the bolt rod, (g) rotary interengaging means releasably connecting the crank to the shaft assembly, (h) a latch operable to maintain the spring-biased bolt rod releasably in its door-locking position, and (i) trip means arranged for disengaging the rotary interengaging means when the bolt rod is in its spring-biased, door-locking position, thereby actuating automatic unlocking of the door.