초록 ▼

A hidden type sliding rail assembly auto locking structure for drawer is disclosed comprised of a holder base, a slide, a coil spring member, a hook, a steel spring strip, a locking block, and an actuating block. When the outer sliding rail is moved outwards with the drawer, the actuating block push

A hidden type sliding rail assembly auto locking structure for drawer is disclosed comprised of a holder base, a slide, a coil spring member, a hook, a steel spring strip, a locking block, and an actuating block. When the outer sliding rail is moved outwards with the drawer, the actuating block pushes the steel spring strip to force the hook against the slide and to further force the locking block into a side notch and stopped at a stop edge at the holder base to prevent disconnection of the locking block, for enabling the coil spring member to return the drawer to the close position. Except the coil spring member, the holder base holds the other parts on the inside and keeps them from sight without the use of a cover, thereby saving much installation labor and time.

대표청구항 ▼

What is claimed is: 1. 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 on

What is claimed is: 1. 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. 2. The sliding rail assembly auto locking structure as claimed in claim 1, wherein the locating groove of said hook is detoured; the front end portion of said steel spring strip is detoured and tightly fitted into the detoured locating groove of said hook. 3. The sliding rail assembly auto locking structure as claimed in claim 1, further comprising a hydraulic cylinder fixedly mounted inside said holder base, said hydraulic cylinder having reciprocating rod connected to said slide for buffering return stroke of said slide. 4. The sliding rail assembly auto locking structure as claimed in claim 1, wherein said holder base has a guide rail fixedly provided at the inside sliding wall of said holder base; said slide has a sliding groove coupled to said guide rail to guide movement of said slide relative to said holder base.