| 摘要 |
A lock mounted with blind fasteners comprising a mounting plate fastened to a door or door jamb by screws passing through holes in the plate, a lock housing normally covering the mounting plate rendering the fastening screws inaccessable, the housing having a bore to detachably receive a lock core, movable bolt means on the housing operatively connected to the lock core, the bolt means preferably being a flat bar having a rock gear on one edge engaged to a spur gear mounted on the housing and driven by rotation of a first key in the lock core through a pair of connecting pins, the lock core being detachable from the bore in the housing in response to a second key, a second bore in the bottom of the bore in the housing adapted to receive a bolt extending therethrough and engagably in a threaded bore in the mounting plate thereby detachably securing the housing to the plate.
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