Patent · US Expired

Collapsible intermediate steering shaft

US5685565A · kind A · utility

11Cited by

3References

6Claims

0Family size

Assignee

LEMFORDER METALLWAREN AG · DE

Inventors

Burkhard Schafer · Ganderkesee, DE
Kai-Uwe Grams · Emstek, DE
Olaf Szielasko · Bohmte, DE

Key dates

Filing date	Jan 23, 1996
Grant date	Nov 11, 1997
Priority date	—
Expiry date	Jan 23, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T403/7077
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The present invention pertains to a safety system for steering shafts, in which shaft parts non-rotatably engage each other and are secured against relative displacement in relation to one another by injected shear materials, which are designed for maximum axial forces in the steering shaft and engage recesses on the outer circumference of the inner shaft part and on the inner circumference of the outer shaft part. Such a safety system has an at least double telescoping shaft system, in which at least two shaft parts are connected to one another by an intermediate shaft part, and the inner shaft parts engage a radial expansion of the corresponding outer shaft part, and a cross section of the shear material designed for shearing is arranged between the shaft parts in the area of the expansion.

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