Patent ID: 7374260

Claim:
A sliding rail assembly auto locking structure used in a sliding rail assembly, said sliding rail assembly comprising an outer sliding rail fixedly mounted on the inside wall of a desk, an inner sliding rail axially movably mounted in said outer sliding rail and affixed to one side panel of a, drawer receivable in said desk, the sliding rail assembly auto locking structure comprising: a holder base affixed to said inner sliding rail of said sliding rail assembly, said holder base having an inside sliding wall, a guide wall extending along one lateral side of said inside sliding wall, a side notch cut through one end of said guide wall, and a stop edge disposed at one side of said side notch; a slide adapted to reciprocate on said inside sliding wall along said guide wall of said holder base, said slide having a top wall and a side wall adapted to guide reciprocating motion of said slide in said holder base, a recessed wall portion, a pivot pin disposed in said recessed portion, a side hole transversely disposed near a front side, an outer wall, and a locating groove disposed at a rear side thereof; a coil spring member, said coil spring member having a first end connected between the locating groove of said slide and a second end fastened to said inner sliding rail; a hook, said hook having a middle pivot hole coupled to the pivot pin of said slide, an inner notch, a pivot pin disposed in said inner notch, an outer opening, a locating groove facing said outer opening, a positioning notch disposed at one side of the locating groove of said hook, a retaining block disposed adjacent to said positioning notch, and a bearing wall at a rear side of said outer opening; a steel spring strip, said steel spring strip having a curved front end portion fastened to the locating groove of said hook, a curved rear end portion, an oblique middle portion, and a top bearing portion connected between one end of said oblique middle portion and said curved rear end portion, said oblique middle portion obliquely outwardly extending from said curved front end portion to said top bearing portion; said top bearing portion being kept spaced from the bearing wall of said hook at a distance after insertion of said steel spring strip in the locating groove of said hook; a locking block, said locking block having a coupling portion, a pivot hole cut through said coupling portion and coupled to the pivot pin of said hook, a locking body inserted into the side hole of said slide, and a neck connected between said coupling portion and said locking body; and an actuating block fixedly provided at one lateral sidewall of said outer sliding rail of said sliding rail assembly for acting against said steel spring strip.