- Patent Title: Screw shaft, manufacturing method thereof, and ball screw device
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Application No.: US15563113Application Date: 2016-03-31
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Publication No.: US10663045B2Publication Date: 2020-05-26
- Inventor: Kazunari Miyazaki , Keisuke Muto , Yutaka Nagai , Satoru Arai , Daisuke Maruyama , Masahiro Nobutomo
- Applicant: NSK LTD.
- Applicant Address: JP Tokyo
- Assignee: NSK LTD.
- Current Assignee: NSK LTD.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@c9619bc com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1425b6f0 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@393f65ba com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@60c37e44 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5ca4c019 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@650f7f4b com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@27dfc4e5
- International Application: PCT/JP2016/060808 WO 20160331
- International Announcement: WO2016/159303 WO 20161006
- Main IPC: F16H25/22
- IPC: F16H25/22 ; F16H25/24
Abstract:
Provided is a screw shaft in a ball screw device. At least a part of the screw shaft includes a cylindrical body which is manufactured by a filament winding method or a sheet winding method, and a spiral member or a partitioned spiral member which is fixed to an outer circumferential surface of the cylindrical body and forms a thread groove.
Public/Granted literature
- US20180087636A1 SCREW SHAFT, MANUFACTURING METHOD THEREOF, AND BALL SCREW DEVICE Public/Granted day:2018-03-29
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