Patent · US Expired

Method series production of an outer column of a safety steering column for automotive vehicles

US4301959A · kind A · utility

2Cited by

4References

8Claims

0Family size

Assignee

Benteler-Werke AG · DE

Inventors

Hubertus Benteler · Bielefeld, DE
Wolfgang Streubel · Detmold, DE
Egon Olszewski · Paderborn, DE

Key dates

Filing date	Dec 12, 1979
Grant date	Nov 24, 1981
Priority date	—
Expiry date	Dec 12, 1999

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23Q7/14
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for series production of an outer column for a safety steering column for motor vehicles in which a first tubular blank is stepwise moved to a plurality of working stations in which the blank is deformed respectively punched to form a substantially smooth-walled protecting tube of the outer column. A second tubular blank is simultaneously moved to a working station in which it is transformed into a corrugated tube and subsequently the two tubes are fed against each other so that end portions of the tube overlap and the overlapping tubes are then welded together in a main welding station. Thereafter at least one pressed metal part is welded to one of the tubes at an auxiliary welding station. At least one control station is coordinated with at least one working station for the first tubular blank and at least one additional control station is coordinated with at least one of the welding stations for checking the work performed by the at least one working and the at least one welding station. After ascertaining of a faulty part in one of the control stations; at least operation of all working and welding stations upstream of the one control station is stopped under simultane…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.