| 摘要 |
A cabinet has a plurality of drawers, each provided with a latch hook at its rear end which is receivable through a corresponding one of a plurality of apertures in a lock bar at the rear of the cabinet which vertically reciprocates between a lowered position interfering with the latch hooks to prevent opening of the drawers and a raised position accommodating free movement of the latch hooks through the apertures to permit opening of the drawers. A lock at the front of the cabinet rotates an elongated rod, the rear end of which engages a coupling bracket on the lock bar to lift it part way to its raised position, at the same time moving a sliding portion of the coupling bracket into position for engagement with a pivoting crank coupled to the rear end of a second spring-biased and push button-actuated rod. When the push button is depressed, the crank is pivoted to lift the lock bar the rest of the way to its raised position.
|
