Invention Grant
- Patent Title: Steering shaft and method for producing a profiled hollow shaft for a telescopic steering shaft of a motor vehicle
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Application No.: US15519751Application Date: 2015-07-31
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Publication No.: US10948008B2Publication Date: 2021-03-16
- Inventor: Michael Walser
- Applicant: ThyssenKrupp Presta AG , ThyssenKrupp AG
- Applicant Address: LI Eschen; DE Essen
- Assignee: ThyssenKrupp Presta AG,ThyssenKrupp AG
- Current Assignee: ThyssenKrupp Presta AG,ThyssenKrupp AG
- Current Assignee Address: LI Eschen; DE Essen
- Agency: thyssenkrupp North America, LLC
- Priority: DE102014115140.2 20141017
- International Application: PCT/EP2015/067613 WO 20150731
- International Announcement: WO2016/058723 WO 20160421
- Main IPC: B21D17/04
- IPC: B21D17/04 ; F16C3/03 ; F16D3/06 ; B21D15/02 ; B21H1/20 ; B21H7/18 ; B62D1/16 ; B21K1/06 ; F16D3/40

Abstract:
A method for producing a profiled hollow shaft for a telescopic steering shaft of a motor vehicle may involve providing a hollow shaft to be processed, a profile mandrel, and a roller head comprising at least one roller. The method may further involve introducing the profile mandrel into the hollow shaft in order to produce a groove in the hollow shaft. The method may also involve moving the profile mandrel and the hollow shaft together relative to the roller head, wherein movement of the profile mandrel and the hollow shaft relative to the roller head is performed exclusively in a direction of a longitudinal axis of the hollow shaft in order to form a groove.
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