Patent ID: 8740321

Claim:
A slide rail comprising: an outer rail comprising a first main plate and two first sidewalls extending from opposite sides of the first main plate, an inner surface of each first sidewall longitudinally defines a first recess; an intermediate rail slidably received in the outer rail, the intermediate rail comprising a second main plate and two second sidewalls extending from opposite sides of the second main plate, each second sidewall comprising a first bent portion extending from a corresponding one of the opposite sides of the second main plate, a second bent portion located outside the first bent portion, and a connecting plate connecting between the first bent portion and the second bent portion, each first bent portion, together with the corresponding one of the opposite sides of the second main plate, binding a second recess open toward another corresponding one of the opposite sides of the second main plate, the second bent portion located between a corresponding one of the first sidewalls of the outer rail and the first bent portion, and defining a third recess facing the first recess; an inner rail received in the intermediate rail, the inner rail comprising a third main plate and two third sidewalls extending from opposite sides of the third main plate, each third sidewall comprising a sliding portion slidably received in a corresponding one of the second recesses of the intermediate rail; and a ball bracket with a plurality of balls positioned between the outer rail and the intermediate rail, and located in the first and third recesses; wherein the second main plate comprises a flat panel, two end portions at opposite sides of the flat panel, and two connection portions each slantingly connected between a corresponding side of the flat panel and a corresponding end portion; and wherein the first bent portion comprises an extension plate perpendicularly extending from a side of a corresponding end portion opposite to the connection portion, and a linking plate substantially perpendicularly extending from a side of the extension plate opposite to the corresponding end portion, wherein the end portion, the extension plate, and the linking plate cooperatively bind the second recess.