Document Type and Number:
Japanese Patent JPS50108890
Kind Code:
U
Abstract:
An actuator rod extending between a pair of knobs on the inside and the outside, respectively, of a door is normally rotatable by both knobs to cause the usual latch bolt of the door to be thrown back. The inside knob has a push button upon depression of which a first clutch of claw type connecting the outside knob to the actuator rod is disengaged. The outside knob has a built-in cylinder lock assembly associated with a second clutch of tongue-and-groove type to permit the door to be opened from the outside while the push button is held depressed. Upon manipulation of the cylinder lock key the second clutch engages to connect the outside knob to the actuator rod. Cam means is employed by way of operative connection between the second clutch and the "plug" or cylindrical rotor of the cylinder lock assembly.
More Like This:
| WO/2004/104331 | IMPROVEMENTS IN LOCKS |
Application Number:
JP2131674U
Publication Date:
September 05, 1975
Filing Date:
February 20, 1974
Export Citation:
International Classes:
E05B55/00; E05B63/08; E05B55/14; (IPC1-7): E05B63/10
Domestic Patent References:
| JPS486225U | 1973-01-24 |