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:
Apr. 27, 2021
Filed:
Feb. 05, 2018
Applicant:
Thk Co., Ltd., Tokyo, JP;
Inventors:
Atsushi Suzuki, Tokyo, JP;
Kotaro Kawai, Tokyo, JP;
Assignee:
THK CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 25/24 (2006.01); F16H 25/22 (2006.01); F16C 33/37 (2006.01);
U.S. Cl.
CPC ...
F16H 25/2223 (2013.01); F16H 25/24 (2013.01); F16C 33/3706 (2013.01); F16H 25/2219 (2013.01); F16H 2025/2242 (2013.01); F16H 2025/2481 (2013.01);
Abstract
A screw device is provided which can facilitate management of a tolerance of a recess where a circulation component is housed. A circulation component is housed in a recess of a nut with clearance. At least part of the circulation component is blocked by a lid member fixed to the nut by fastening means. Upon a centrifugal force acting on a rolling element moving along a circulation path in the circulation component, the circulation component comes into contact at three points with the recess as viewed in an axial direction.