Title:
BALL SCREW DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/210307
Kind Code:
A1
Abstract:
The outer circumferential surface of a nut (3) is provided with a holding groove (10) that is formed so as to extend axially in a linear fashion and to have openings in both axial outer end faces of the nut (3). A circulation component (5) is disposed within the holding groove (10). The circulation component (5) is configured such that radially outward displacement and circumferential displacement thereof relative to the nut (3) are made impossible by bringing engagement protrusions (23) of fixed parts (17) disposed at respective axial outer ends of the circulation component (5) into engagement with engagement recesses disposed at both axial outer ends of the holding groove (10).
Inventors:
YAMADA KAZUYA (JP)
SHIMOMURA YUJI (JP)
ABE YASUAKI (JP)
SATO KANTA (JP)
SHIMOMURA YUJI (JP)
ABE YASUAKI (JP)
SATO KANTA (JP)
Application Number:
PCT/JP2021/009951
Publication Date:
October 21, 2021
Filing Date:
March 12, 2021
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16H25/22; F16H25/24
Foreign References:
| JP2010078060A | 2010-04-08 | |||
| JP2010112429A | 2010-05-20 | |||
| JP2015132369A | 2015-07-23 | |||
| JPH11351350A | 1999-12-24 |
Other References:
See also references of EP 4086478A4
Attorney, Agent or Firm:
KIWA INTERNATIONAL (JP)
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