Patent ID: 7556431

Claim:
A linear slide, comprising: an elongate guide rail having opposite lateral surfaces, and a top surface that interconnects said lateral surfaces thereof; a sliding block slidable along said elongate guide rail, said sliding block including opposite vertical parts, each of which confronts a respective one of said lateral surfaces of said elongate guide rail, and a horizontal part that interconnects said vertical parts and that confronts said top surface of said elongate guide rail; a pair of ball roller chains, each of which is disposed between said elongate guide rail and said sliding block; and a pair of cylindrical roller chains, each of which is disposed between a respective one of said lateral surfaces of said elongate guide rail and a respective one of said vertical parts of said sliding block; wherein each of said vertical parts of said sliding block has an inner surface that is formed with a first groove, and is formed with a first through-hole that is parallel to said first groove in said inner surface of a respective one of said vertical parts of said sliding block, each of said lateral surfaces of said elongate guide rail being formed with a second groove that confronts said first groove in said inner surface of the respective one of said vertical parts of said sliding block, each of said confronting pairs of said first and second grooves defining a second through-hole, each of said cylindrical roller chains extending through a respective one of said first through-holes and a respective one of said second through-holes; wherein said horizontal part of said sliding block has an inner surface that is formed with a pair of third grooves, and is formed with a pair of third through-holes, each of which is parallel to a respective one of said third grooves in said inner surface of said horizontal part of said sliding block, said top surface of said elongate guide rail being formed with a pair of fourth grooves, each of which confronts a respective one of said third grooves in said inner surface of said horizontal part of said sliding block, each of said confronting pairs of said third and fourth grooves defining a fourth through-hole, each of said ball roller chains extending through a respective one of said third through-holes and a respective one of said fourth through-holes.