Patent ID: 8511764

Claim:
A slide automatic-closing buffer assembly, installed on a slide having an inner rail and an outer rail, comprising: a base, disposed at an end of the outer rail, and linearly extended towards a front end of the outer rail, and having a containing space formed therein, a linear guide slot formed on both sides of the containing space separately, at least one buffer rail installed in the containing space, and a first positioning portion substantially in an arc shape and disposed at a front end of the linear guide slot; a sliding block, having a first protruding shaft and a second protruding shaft both protruded outwardly from each side of the sliding block respectively, and passed between the pair of linear guide slots, and the first protruding shaft having a length sufficient to pass through the pair of linear guide slots, and the sliding block having a buffer wheel installed at a position corresponding to the buffer rail, wherein the buffer wheel is installed in a pair on the pair of second protruding shafts on each side of the sliding block respectively, and the buffer rail is installed in a pair on an internal side proximate to the pair of linear guide slots respectively, and the buffer wheel is slowed down by the buffer rail to reduce a moving speed of the sliding block, and the sliding block having a snap groove formed therein; at least one elastic element, an end of the elastic element disposed on the base, and an other end of the elastic element coupled to one of the first protruding shafts of the sliding block; and a bump, disposed at an end of the inner rail and opposite to a surface of the sliding block; when the inner rail is opened with respect to the outer rail, the sliding block is driven by the bump to slide in the pair of linear guide slots and turn to snap into the first positioning portion, and when the inner rail is closed with respect to the outer rail, the bump is snapped into the snap groove to push or turn the sliding block back into the pair of linear guide slots, and the sliding block is pulled in a reverse direction by the elastic element, and slides along the pair of linear guide slots to a rear end to achieve the automatic closing effect under a buffering effect of the buffer wheel and the buffer rail.