Method of interconnecting an input shaft and a torsion bar of st

Details Method of interconnecting an input shaft and a torsion bar of st Method of interconnecting an input shaft and a torsion bar of st

1994-05-19

1995-07-11

Oberleitner, Robert J.

Spring devices

Vehicle

Torsion

29507, 29523, 403281, 403282, 403315, B65D 3912, B60G 1118

Patent

active

054313791

ABSTRACT:
A method for fastening an input shaft and a torsion bar together in a power steering mechanism, and the associated torsion bar. A ball-receiving hole is bored in the end of the torsion bar. The end of the torsion bar is inserted into a bore in the input shaft and a ball is pressed into the hole to provide an interference fit between the shaft and the bar. Subsequently, the peripheral edge of the hole in the torsion bar is elliptically deformed so as to retain the ball in the hole and the bar in the shaft. Since a portion of the opening is slightly diametrically broadened by the ball, the periphery of the portion closely contacts the inner wall of the input shaft, thereby strengthening the connection between the torsion bar and the input shaft.

REFERENCES:
patent: 1979686 (1934-11-01), Hall et al.
patent: 2554078 (1951-05-01), Werner
patent: 5078294 (1992-01-01), Staubli

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