Patent ID: 7467833
Filing Date: 2008-12-23
Classification: E05B

Abstract:
1. A drawer locking apparatus disposed in a cabinet body having at least two vertically arranged drawers, when one of the drawers is drawn out, the other drawer being prevented from extending out of the cabinet body, said locking apparatus comprising: a first and a second slide rail assemblies being respectively corresponding to each drawer, the first slide rail assembly being positioned above the second slide rail assembly corresponding to the second slide rail assembly, the first slide rail assembly and the second slide rail assembly respectively including a stationary slide rail and a telescopic slide rail set, the stationary slide rail being disposed on the cabinet body, the telescopic slide rail set being disposed on the drawer, the telescopic slide rail set being back and forth slidably disposed in the stationary slide rail, the telescopic slide rail set being extensible out of front end of the stationary slide rail; a first and a second activators respectively being disposed on the first and second slide rail assemblies, the first activator being disposed at the telescopic slide rail set, the second activator being corresponding to the first activator and disposed at the stationary slide rail, the second activator including a base seat, a guide seat, a bar member, a pair of slide ways and a slide member, the base seat being disposed at the stationary slide rail, the guide seat being disposed on the base seat, the guide seat having a guide face for guiding the first activator to swing, the bar member being reciprocally movably disposed between the first and second slide rail assemblies, two ends of the bar member being respectively passed through spaces between the base seats and the guide seats of the first and second slide rail assemblies, the two slide ways being oppositely respectively formed on the base seat and the guide seat, the slide member being disposed between the base seats and the guide seats and corresponding to an end of the bar member, two ends of the slide member being respectively fitted through the slide ways, wherein the two ends of the slide member are slidable along the slide ways in the sliding direction of the telescopic slide rail set, one end of the slide member being dragged by the first activator and released by the swinging of the first activator, wherein the slide member is slidable back and forth between a first position and a second position, wherein when the slide member is positioned in the second position, the slide member abuts against the bar member, when the slide members of the first and second slide rail assemblies are positioned in the first position, means for making the bar member to move up and down and when one of the telescopic slide rail set is extended, the first activator drags the slide member from the first position to the second position, whereby the slide member pushes the bar member and then the slide member is engaged with the bar member to prevent the bar member from sliding.