Title:
NUT AND BALL SCREW DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/053415
Kind Code:
A1
Abstract:
A nut according to the present disclosure comprises: a cylindrical nut body through which a screw shaft is inserted; a plurality of inner track surfaces and a plurality of S-shaped groove surfaces recessed radially outward from the inner circumferential surface of the nut body; and a flange projecting radially outward from the outer circumferential surface of the nut body. The flange comprises at least one or more partial flanges extending only partially in the circumferential direction along the outer circumferential surface of the nut body. The space between one end and the other end of the partial flange in the circumferential direction in the case of one partial flange, and the space between partial flanges adjacent to each other in the circumferential direction in the case of two or more partial flanges serve as a relief space into which the wall part of the nut body can be released. On the radially inner side of the relief space, one S-shaped groove surface out of the plurality of S-shaped groove surfaces is disposed.
Inventors:
NAKABAYASHI YUTA (JP)
TANAKA KAZUTAKA (JP)
TANAKA KAZUTAKA (JP)
Application Number:
PCT/JP2023/030514
Publication Date:
March 14, 2024
Filing Date:
August 24, 2023
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16H25/22; F16H25/24
Foreign References:
| JP2014092223A | 2014-05-19 | |||
| JP2019014358A | 2019-01-31 | |||
| JP2021095924A | 2021-06-24 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Download PDF: