Patent ID: 6287005
Filing Date: 2001-09-11
Classification: F16C

Abstract:
A roller guiding apparatus comprising:an elongated traveling rail having a roller-rolling surface formed thereon;a movable body having a roller-rolling surface formed in opposition to the roller-rolling surface of said traveling rail; anda multitude of rollers interposed between the opposed roller-rolling surfaces of said traveling rail and said movable body;wherein said rollers are each formed with a pair of arc-shaped portions having a diameter gradually decreasing from a central portion thereof toward opposite ends thereof, andwherein each of said roller-rolling surfaces has a pair of first regions corresponding to said arc-shaped portions of each of said rollers, said first regions being each formed into an arc surface having a radius of curvature slightly greater than that of a corresponding arc surface of each roller such that each roller can be in contact at its opposite side arc surfaces with the corresponding arc surfaces of said opposed roller-rolling surfaces to thereby cause a differential slip therebetween.