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. 21, 2010
Filed:
Jan. 20, 2005
Hirokazu Ishikawa, Shinagawa-ku, JP;
Shunji Matsutomi, Shinagawa-ku, JP;
Tsutomu Hasegawa, Shinagawa-ku, JP;
Mitsuteru Nanba, Shinagawa-ku, JP;
Hirokazu Ishikawa, Shinagawa-ku, JP;
Shunji Matsutomi, Shinagawa-ku, JP;
Tsutomu Hasegawa, Shinagawa-ku, JP;
Mitsuteru Nanba, Shinagawa-ku, JP;
THK Co., Ltd., Tokyo, JP;
THK Intechs Co., Ltd., Tokyo, JP;
Abstract
A rotary table system having high axial and radial run-out accuracy, high resolution, and thin and medium- or large-sized system. The rotary table system includes a guide apparatus and a rotary table mounted on the guide apparatus. The guide apparatus includes a ring-shaped integrated rail having no discontinuity in the travel direction thereof, and a plurality of guide blocks assembled to the rail from the direction of their surfaces opposing the rail. The surface of the rail opposite to the surface thereof opposing the guide blocks and the underside of the rotary table are joined together. The rail has an L-shaped cross-sectional configuration formed from a vertical portion and a horizontal portion extending from the upper end of the vertical portion in the radial direction of the rotary table. A tape scale that is detected by a detecting mechanism is provided on the outer peripheral surface of the rail.