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:
Apr. 08, 1997
Filed:
Sep. 15, 1995
Masayuki Katahira, Saitama, JP;
NSK. Ltd., Tokyo, JP;
Abstract
In a guide rail for a linear guide apparatus including a plurality of rolling elements and a slider, the guide rail includes a pair of rolling grooves formed in side surfaces of the guide rail for supporting the slider through the rolling elements, the rolling-element rolling grooves axially extending in parallel with each other, a pair of hardened surface layers formed continuously all over the side surfaces by subjecting the side surfaces to induction hardening, and a hole formed penetratingly in a soft portion existing between the hardened surface layers for fixing the guide rail. The hardened surface layers thus formed are sufficient to receive a shearing force which is applied to the guide rail when the linear guide apparatus is in operation.