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. 10, 2024
Filed:
Jun. 22, 2022
Applicant:
Nsk Ltd., Tokyo, JP;
Inventors:
Ryo Segawa, Fujisawa, JP;
Kazutaka Tanaka, Fujisawa, JP;
Assignee:
NSK LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 25/20 (2006.01); F16H 25/22 (2006.01); F16H 25/24 (2006.01);
U.S. Cl.
CPC ...
F16H 25/2214 (2013.01); F16H 25/24 (2013.01); F16H 2025/2075 (2013.01);
Abstract
A ball screw device has: a screw shaft rotationally moving during use, a nut having a protruding non-rotating side engaging portion at an end portion on one side in an axial direction, the nut linearly moving during use, balls arranged between a shaft-side and nut-side grooves, and a driving member fixed to the screw shaft having an arc-shaped rotating-side engaging groove portion into which the non-rotating side engaging portion can be inserted in the axial direction, and which can be engaged with the non-rotating side engaging portion in a circumferential direction.