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. 19, 2017
Filed:
Mar. 03, 2016
Applicant:
Hiwin Technologies Corp., Taichung, TW;
Inventor:
Shang-Hua Tsai, Taichung, TW;
Assignee:
Hiwin Technologies Corp., Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 21/10 (2006.01); F16H 25/22 (2006.01);
U.S. Cl.
CPC ...
F16H 25/2228 (2013.01);
Abstract
A shaft circulation ball screw includes: a screw, a nut, a circulation member, and two fixing rings. The screw is provided with a stop portion for the two ends of the circulation member to rest against, a distance from the stop portion to a central axis of the screw is defined as a first height H, a distance from a highest point of the rolling elements which are located in the return passage to the central axis of the screw is defined as a second height Hmax, and Hmax satisfies the following relation: Hmax−0.5×BD≦H≦Hmax.