| 摘要 |
PURPOSE:To make it possible to easily adjust gaps between guide members and brackets by making the bracket divisible into left and right parts and providing ball retainers between respective bracket members and both side surfaces of each of the guide members. CONSTITUTION:Each of the guide members 11 has on its both sides a pair of sloped surfaces 14 and 14 along the longitudinal direction, and also has depressed parts 15 extending in the longitudinal direction. On the sloped surfaces 14 and 14 of each of the depressed parts 15 are formed load ball grooves 16 and 16 extending in the longitudinal direction. Each of the brakcets 12 is mainly composed of an L-shaped part 17 encircling the upper corner part of the guide member 11, and a projected part 18 formed with load ball grooves 19 and 19 are integrally provided on the surface confronting the side surface of the guide member 11. The ball retainer 13 is provided between the depressed part 15 and the projected part 18. As a result, a spacer is inserted between end surfaces of the L-shaped part to make the gap between the guide member and the bracket 12 easily adjustable. |
