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:
Jul. 31, 2012
Filed:
Oct. 31, 2005
Hidekazu Michioka, Tokyo, JP;
Masahiko Yoshino, Tokyo, JP;
Mitsuaki Homma, Tokyo, JP;
Satoru Nagai, Tokyo, JP;
Hidekazu Michioka, Tokyo, JP;
Masahiko Yoshino, Tokyo, JP;
Mitsuaki Homma, Tokyo, JP;
Satoru Nagai, Tokyo, JP;
THK Co., Ltd., Tokyo, JP;
Abstract
A motion guide device that has a novel damping structure different from the conventional damping structure is provided. The present invention comprises a raceway member () having a rolling-element rolling part (); a moving member () having a loaded rolling-element rolling part () facing the rolling-element rolling part () and being allowed to make a linear or curved movement relatively to the raceway member (); and a plurality of rolling elements () intervening between the rolling-element rolling part () of the raceway member () and the loaded rolling-element rolling part () of the moving part (). A gap () between the raceway member () and the moving member () is filled with a layer of oil contacting the raceway member () and the moving member (). Viscosity resistance of the oil is utilized to apply a braking force to the moving member () or the raceway member () in proportion to a speed.