초록 ▼

A sliding rail assembly auto opening mechanism for drawer is disclosed to include a holder block affixed to the outer rail of a sliding rail assembly and defining two longitudinal sliding slots, a sliding hook slidably mounted in the longitudinal sliding slots, a spring member connected between the

A sliding rail assembly auto opening mechanism for drawer is disclosed to include a holder block affixed to the outer rail of a sliding rail assembly and defining two longitudinal sliding slots, a sliding hook slidably mounted in the longitudinal sliding slots, a spring member connected between the holder block and the sliding hook, and a rocker, which is pivoted to a pivot in the holder block and has a front locating rod insertable through guide-in groove, sliding groove, retaining groove and guide-out groove at the holder block to automatically lock the sliding rail assembly when the sliding rail assembly is received with the drawer in the desk and to automatically unlock the sliding rail assembly when the drawer is pushed backwards from the locking position over a predetermined distance.

대표청구항 ▼

What is claimed is: 1. A sliding rail assembly auto opening mechanism used in a sliding rail assembly, said sliding rail assembly comprising an outer rail fixedly mounted on the inside wall of a desk, an intermediate sliding rail axially movably mounted in said outer rail, an inner sliding rail axi

What is claimed is: 1. A sliding rail assembly auto opening mechanism used in a sliding rail assembly, said sliding rail assembly comprising an outer rail fixedly mounted on the inside wall of a desk, an intermediate sliding rail axially movably mounted in said outer rail, an inner sliding rail axially movably mounted in said intermediate sliding rail and affixed to one side panel of a drawer receivable in said desk, a first bushing set between said inner sliding rail and said intermediate sliding rail, and a second bushing set between said intermediate sliding rail and said outer rail, said sliding rail assembly auto opening mechanism comprising: a holder block affixed to the outer rail of said sliding rail assembly, said holder block comprising a longitudinal sliding track extending in direction corresponding to the moving direction of said drawer, two longitudinal sliding slots symmetrically formed in said longitudinal sliding track at two opposite lateral sides, said longitudinal sliding slots each having a rear end terminating in a rear stop edge and a front end curved forwardly downwards and forming a retaining groove, a locating notch disposed in said longitudinal sliding track on the middle near a front side of said longitudinal sliding track, and a stop face disposed at a rear side of said longitudinal sliding track adjacent to the rear stop edge of each of said longitudinal sliding slots, and a pivot perpendicularly extending from a bottom wall of said longitudinal sliding track; a rocker, said rocker having a rear coupling hole pivotally coupled to the pivot of said holder block and a front locating rod; a sliding hook, said sliding hook comprising a top wall, a bottom wall, two front guide rods and two rear guide rods respectively coupling to the longitudinal sliding slots of said holder block to guide forward/backward movement of said sliding hook along said longitudinal sliding track, a front sloping guide face raised from the top wall near a front side thereof, a rear stop block protruded from the top wall near a rear side thereof, a locating groove transversely formed in the top wall on the middle between said front sloping guide face and said rear stop block, a locating hole situated at the front side, a guide-in groove formed in the bottom wall, a retaining groove formed in the bottom wall in communication with said guide-in groove, a guide-out groove formed in the bottom wall, a sliding groove formed in the bottom wall and connected between said retaining groove and said guide-out groove, a sloping block protruded from the bottom wall for guiding the locating rod of said rocker into said guide-in groove, and a front open groove disposed at a front side of said sloping block, said guide-in groove comprising an entrance, a curved groove portion, and a guiding groove portion; said curved groove portion being in communication with one side of said retaining groove; a spring member connected between the locating hole of said sliding hook and the locating notch of said holder block; and a actuating member fixedly connected to the front side of the inner sliding rail of said sliding rail assembly, said actuating member having an actuating rod. 2. The sliding rail assembly auto opening mechanism as claimed in claim 1, wherein said sliding hook comprises a guide block facing a rear side of said guide-out groove for guiding the front locating rod of said rocker out of said guide-out groove toward said sloping block. 3. The sliding rail assembly auto opening mechanism as claimed in claim 1, wherein the sliding groove of said sliding hook has a rear side disposed in communication with one side of the retaining groove of said sliding hook that slopes in one direction, and a curved front side disposed in communication with a front part of said guide-out groove. 4. The sliding rail assembly auto opening mechanism as claimed in claim 1, wherein said holder block has two guide grooves bilaterally formed in said longitudinal siding track in communication with the retaining grooves of said longitudinal sliding slots for easy insertion of the guide rods of said sliding hook into the longitudinal sliding slots of said holder block during installation. 5. The sliding rail assembly auto opening mechanism as claimed in claim 1, wherein said rocker has a front arched block coupled to a sliding groove in the bottom wall of said longitudinal sliding track of said holder block to guide movement of said rocker about the pivot of said holder block.