Patent ID: 6217217
Filing Date: 2001-04-17
Classification: F16C

Abstract:
A linear roller guide device comprising a track rail and a movable block assembled to the track rail through a number of rollers, said movable block comprising:a roller rolling surface on which said rollers roll;a block body having a roller returning passage corresponding to the roller rolling surface;a direction changing passage inner periphery portion formed to both end surfaces of the block body;a pair of roller end surface guide walls formed to both sides of the roller rolling surface of the block body and adapted to guide both the end surfaces of the roller; andside covers each having a direction changing passage outer periphery portion for forming a direction changing passage by fitting the side cover into the direction changing passage inner periphery portion formed to both end surfaces of the block body,said track rail including a roller rolling surface extending in an axial direction corresponding to the roller rolling surface of the block body, andsaid rollers circulating in an endless circulating passage constituted by a loaded area between the roller rolling surface of the block body and the roller rolling surface corresponding to the track rail, the direction changing passage and the roller returning passage,wherein at least one of a roller returning passage forming member for forming the roller returning passage, which is of one-piece construction with a guide wall guiding a roller end surface, a direction changing passage inner periphery portion forming member for forming the direction changing passage inner periphery portion, which is of one-piece construction with the guide wall and a roller end surface guide wall forming member for forming at least one of the paired roller end surface guide walls, is formed as a molded body integrally formed with the block body by inserting the block body into a molding die.