The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2001
Filed:
Nov. 24, 1999
Hiroshi Teramachi, Tokyo, JP;
Other;
Abstract
A roller guiding apparatus for use in linear guiding portions of a variety of kinds of industrial machines such as machine tools and the like is provided for guiding rollers which rollingly travel along a pair of opposed roller-rolling surfaces formed on a traveling rail and a movable body so as to move the movable body along the traveling rail. The apparatus employs barrel-shaped rollers which are suitable for supporting heavy loads and have excellent self-aligning ability and vibration-damping capability. To this end, the barrel-shaped rollers (,) each have a pair of arc-shaped portions (,) which gradually decrease in their diameter from a center thereof toward opposite ends thereof. The opposed roller-rolling surfaces (,) are configured such that those regions thereof which correspond to the opposite side arc-shaped portions (,) of each roller (,) are composed of arc surfaces (,) which have a radius of curvature slightly greater than that of the opposite side arc-shaped portions (,) of each roller (,) so as to cause differential slips when the rollers (,) are traveling while contacting the opposed roller-rolling surfaces.