Title:
BALL SCREW DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/282012
Kind Code:
A1
Abstract:
[Problem] To provide a ball screw device wherein rotation of a nut that is a linear movement element can be stopped at low cost. [Solution] A nut 3 has, in an outer circumferential surface, a guidance groove 18 that can engage in a circumferential direction with a rotation stopping member 6. An insertion hole 7 of a housing 5 has, in an inner circumferential surface, a retention groove 21 that can engage in the circumferential direction with the rotation stopping member 6. The rotation stopping member 6 is a shaft-shaped member extending in an axial direction, an outside section thereof with regard to a radial direction is positioned inside the retention groove 21, and an inside section thereof with regard to the radial direction is positioned inside the guidance groove 18 in a manner allowing sliding movement in the axial direction.
Inventors:
SEGAWA RYO (JP)
Application Number:
PCT/JP2022/024123
Publication Date:
January 12, 2023
Filing Date:
June 16, 2022
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16H25/22; F16H25/24
Domestic Patent References:
| WO2006106817A1 | 2006-10-12 |
Foreign References:
| JP2007303515A | 2007-11-22 | |||
| JPS60189649U | 1985-12-16 | |||
| JP2009241660A | 2009-10-22 | |||
| JP2014145465A | 2014-08-14 | |||
| JP2021035311A | 2021-03-01 | |||
| JP2007303515A | 2007-11-22 |
Other References:
See also references of EP 4206492A4
Attorney, Agent or Firm:
KIWA INTERNATIONAL (JP)
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