Patent ID: 8297723

Claim:
An interlock device, comprising: a slide assembly comprising an outer rail, an inner rail and an intermediate rail movably connected between the outer and inner rails, the outer rail having a sliding way, the outer rail having a support frame and an opening defined in the support frame; an interlock connected to a front end of the slide assembly, the interlock comprising: a base fixed to the support frame and located corresponding to the opening, the base having a top portion and a bottom portion located corresponding to the top portion, the top portion and the bottom portion respectively located on a top side and a bottom side of the sliding way of the outer rail, the top portion having a top room communicating with the sliding way of the outer rail, the bottom portion having a bottom room communicating with the sliding way of the outer rail; and a driving member movably connected to the base and having a driving portion, an engaging portion located corresponding to the driving portion, and a co-moving portion located between the driving portion and the engaging portion, the driving portion located at a front end of the intermediate rail and in the top room, a part of the driving portion extending from the top room, the engaging portion located in the bottom room of the base, the co-moving portion extending through the opening; wherein when the inner rail and the intermediate rail are pulled out relative to the outer rail, the driving portion of the driving member is pushed by the intermediate rail and retracted into the top room of the base, the co-moving portion is moved from a first position to a second position, and the engaging portion extends from the bottom room of the base.