초록 ▼

An auxiliary locking device to be employed in a door knob includes a lock body that has at least two parallel through-bores extending through the body. A first retaining bolt is slidably received in one of the through-bores and includes two ends extending out from the lock body. A second retaining b

An auxiliary locking device to be employed in a door knob includes a lock body that has at least two parallel through-bores extending through the body. A first retaining bolt is slidably received in one of the through-bores and includes two ends extending out from the lock body. A second retaining bolt is slidably received in the other one of the through bore and has an end portion extending from the lock body. The end portion of the second bolt has a plate member with an opening around the periphery of which a wall body is mounted. The wall body confines a through-hole that generally has a cross-section equal to and in communication with the opening.

대표청구항 ▼

An auxiliary locking device for a door lock which includes a latch bolt formed on a door on which said door lock is fixed and a recessed groove formed on a door frame of said door to receive said latch bolt when said door is closed , said auxiliary locking device comprising: a lock body having at le

An auxiliary locking device for a door lock which includes a latch bolt formed on a door on which said door lock is fixed and a recessed groove formed on a door frame of said door to receive said latch bolt when said door is closed , said auxiliary locking device comprising: a lock body having at least two through-bores extending therethrough parallel to one another; a first bolt slidably received in one of said through-bores of said lock body and having first and second ends extending out from said lock body, said second end having an abutting face formed thereat; a second bolt slidably received in the other one of said through-bores of said lock body and having an end portion protruding out from said lock body, said end portion having a plate member mounted thereto parallel to the axis of said second bolt and further including an opening formed therein, a wall body being provided perpendicularly around the periphery of said opening and being adapted to be received in said recessed groove, said wall body confining a through-hole with a cross-section the same as that of said opening in which said latch bolt is to be received; and means for retaining said first and second bolts respectively in said through-bores of said lock body.