| 摘要 |
A sliding block (11) with adjustable track positioning comprising a prismatic body, in one face of which there is a longitudinal recess (12) arranged to receive a rail (13) by way of rolling elements (16) positionable in respective tracks (14,14'), the body being essentially of C-shaped cross-section consisting of a central part (17) from which two flanges extend, wherein in at least one of the two flanges of the C-shaped cross-section there is provided a second longitudinal recess (18) which divides it into separate portions (19,20) connected together at the central part (17), the second recess (18) containing elements (21) for adjusting the distance between the two separate portions (19,20). |
