Sliding track assembly for drawers

A sliding track assembly arranged between a cabinet and a drawer, said sliding track assembly comprising an outer rail securely fixed to an inside wall of said cabinet, an intermediate rail, an inner rail fixedly secured to a lateral side of said drawer, a first sliding ball rack slidably connected between said outer rail and said intermediate rail, and a second sliding ball rack slidably connected between said intermediate rail and said inner rail, a first stop plate fixed to said intermediate rail at an outer end and having two projecting blocks having a distance therebetween for engagement with a second stop plate on said inner rail and two stop rods for stopping said second sliding ball rack in place, a second stop plate fixed to said inner rail at an outer side, said second stop plate being engaged with the projecting blocks of said first stop plate to stop said drawer in place when said drawer is pulled out of said cabinet,

• said second stop plate comprising a locating portion of a width slightly smaller than the distance between the two projecting blocks of said first stop plate and of a thickness slightly longer than the thickness of the projecting blocks of said first stop plate, the locating portion of said second stop plate being fixed to said inner rail, a retaining portion longitudinally extended from one end of the locating portion of said second stop plate and made of a width slightly longer than the distance between the two projecting blocks of said first stop plate and deeming two opposite projecting portions at two opposite lateral sides, a press portion longitudinally extended from the retaining portion of said second stop plate opposite to the locating portion of said second stop plate and made of a width slightly shorter than the distance between the two projecting blocks of said first stop plate, a forked retaining tail defining a retaining notch and fastened to said inner rail, and a bend connected between said press portion and said forked retaining tail, the retaining portion and press portion of said second stop plate being spaced from said inner tail by a space, the retaining portion of said second stop plate being forced to curved toward said inner rail and to disengage from said first stop plate when said press portion is depressed, for allowing said drawer to be disconnected from said cabinet, the retaining portion of said second stop plate having a sloping surface portion connected to the locating portion of said second stop plate and two projecting portions remote from the sloping surface portion thereof, the sloping surface portion surface portion of the retaining portion of said second stop plate being to guide said second stop plate through the projecting blocks of said first stop plate into said intermediate rail when said drawer is inserted into said cabinet, the projecting blocks of said first stop plate having a respective top side, which is guided by the sloping surface portion of the retaining portion of said second stop plate to pass over the retaining portion of said second stop plate into engagement with two projecting portions of the retaining portion of said second stop plate when said drawer is inserted into the inside wall of said cabinet, the projecting portions of the retaining portion of said second stop plate being engaged with the projecting blocks of said first stop plate to stop said drawer in place when said drawer is pulled out of said cabinet, said drawer being disconnected from said cabinet when said press portions of said second stop plate is depressed to curve the retaining portion of said second stop plate and to disengage the projecting portions of the retaining portion of said second stop plate from the projecting blocks of said first stop plate.