Patent ID: 9267540
Filing Date: 2016-02-23
CPC Classification: F16C

Claim Text:
1. A linear guideway, comprising: an elongated spacer defining a longitudinal direction, wherein the spacer has a receiving portion and two engaging portions, the receiving portion has a plurality of thru-holes arranged in a row along the longitudinal direction and spaced apart from each other, the engaging portions are respectively arranged on two opposite edges of the receiving portion, wherein the spacer is integrally formed in one piece, the engaging portions are respectively extended from two opposite longitudinal edges of the receiving portion; the receiving portion resembles a sheet and defines a normal direction perpendicular to a main surface of the receiving portion, the receiving portion has a thickness along the normal direction, each engaging portion has a height along the normal direction, and the height of each engaging portion is greater than the thickness of the receiving portion; a plurality of rollers respectively arranged in the thru-holes of the spacer; and two elongated sliding blocks, wherein each sliding block has a rolling groove and an engaging groove concavely formed on a bottom portion of the rolling groove, each rolling groove has two track surfaces spaced apart from each other, and each engaging groove is in air communication with the corresponding rolling groove, wherein the engaging portions of the spacer are respectively and slidably inserted into the engaging grooves of the sliding blocks along the longitudinal direction, thereby sustaining sliding of each sliding block only along the longitudinal direction with respect to another sliding block, wherein the track surfaces of each sliding block are respectively arranged at two opposite sides of the receiving portion of the spacer, each roller is respectively arranged in the rolling grooves of the sliding blocks, and the rollers are rollably clamped between the track surfaces of the sliding blocks by respectively inserting the engaging portions into the engaging grooves.