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. 24, 2012
Filed:
Aug. 28, 2009
Jouns Liu, Taichung, TW;
Jui-long Hsu, Taichung, TW;
Jouns Liu, Taichung, TW;
Jui-Long Hsu, Taichung, TW;
Hiwin Technologies Corp., Taichung, TW;
Abstract
An external circulation type ball screw with a noise-reduction structure is provided with a noise-reduction cover to be mounted on the nut. The noise-reduction cover is defined with a noise-reduction groove with two ends to cover impacting portions of the return path of the return member where the rolling elements impact the return path. With the design of the noise-reduction groove, noises will counteract each other after being transmitted to the noise-reduction groove, thus reducing the noises produced by the rolling elements impacting the return member and accordingly reducing the noises produced during operation of the ball screw.