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:
Oct. 17, 2000
Filed:
Jun. 02, 1998
Hidekazu Michioka, Tokyo-to, JP;
Katsuya Iida, Tokyo-to, JP;
Masahiro Yoshihashi, Tokyo-to, JP;
Hiroaki Mochizuki, Tokyo-to, JP;
Tadashi Hirokawa, Tokyo-to, JP;
THK, Co., Ltd., Tokyo-To, JP;
Abstract
A linear motion guiding apparatus comprises a guide rail provided with a ball running groove, and a movable block movably arranged along the guide rail through balls. The movable block is provided with a ball running counter-groove, a ball returning passage arranged away from the ball running counter-groove and direction changing passages for connecting these members. A resin-formed body for forming a ball circulation passage comprises a pair of ball passage forming portions, a returning passage forming portion and a pair of direction changing passage-inner guide forming portions. The resin-formed body is separately formed from a body of the movable block. At least two portions of (a) the ball passage forming portions, (b) the returning passage forming portion, (c) one of the direction changing passage-inner guide forming portions and (d) another of the of direction changing passage-inner guide forming portions are connected with each other through integral forming so that the resin-formed body can be built in the body of the movable block.