Patent ID: 9247814
Filing Date: 2016-02-02
CPC Classification: A47B,F16C,H05K

Claim Text:
1. A slide rail assembly for mounting a lateral side of a chassis to a rack, the slide rail assembly comprising: a first rail including an upper wall, a lower wall opposite to the upper wall, and a sidewall connected between the upper wall and the lower wall, wherein the upper wall, the lower wall, and the sidewall define a longitudinal channel; a second rail slidably connected to the first rail, the second rail including an upper wall, a lower wall opposite to the upper wall, and a sidewall connected between the upper wall and the lower wall, the sidewall of the second rail having a mounting portion to engage a mounting member formed on the lateral side of the chassis; and a ball assembly including a ball retainer and a plurality of balls arranged in the ball retainer, the ball assembly being movably mounted between the first rail and the second rail, the ball retainer having a lateral portion extending into a space between the sidewall of the first rail and the sidewall of the second rail; wherein a projecting block protrudes from a surface along the sidewall of the second rail into the longitudinal channel to remain spaced from the sidewall of the first rail, the projecting block being fixedly disposed relative to the mounting portion longitudinally offset therefrom, the projecting block defining a ramped structure, and wherein the projecting block, upon contact with the lateral portion of the ball retainer during a longitudinal movement of the ball retainer relative to the projecting block, pushes the lateral portion of the ball retainer away from the sidewall of the second rail, thereby maintaining a clearance between the lateral portion of the ball retainer and the surface along the sidewall of the second rail for the duration of the longitudinal movement beyond the projecting block.