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:
Jan. 31, 1995
Filed:
Oct. 20, 1993
Tomohiro Ichida, Gifu, JP;
Takehiko Hara, Kanagawa, JP;
Nippon Thompson Co., Ltd., Tokyo, JP;
Abstract
A linear motion rolling guide unit equipped with a long slider composed of a coupling of a plurality of casings obtains an increase in the rated load while setting the total length of the slider to a suitable length to match the machine tool in which it is to be incorporated, while also maintaining a smooth sliding state at all times even if the casings shift out of position. These advantages are obtained by juxtapositioning a spacer between each casing, and making rolling element guide track grooves provided in said spacer larger than load bearing track grooves formed in each casing to allow the rolling element guide track grooves to act as reliefs for rolling elements.