Patent · US Expired

Hollow bearer for vehicles and method for its manufacture

US4288025A · kind A · utility

3Cited by

3References

5Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Willi Reidelbach · Sindelfingen, DE
Hermann Renner · Worms, DE
Wolfgang Klie · Ditzingen, DE

Key dates

Filing date	Oct 2, 1979
Grant date	Sep 8, 1981
Priority date	—
Expiry date	Oct 2, 1999

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49869
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A bearer, especially a longitudinal bearer of a motor vehicle frame, which is constructed as hollow profile and includes a deformable section dissipating impact energy; the walls of the longitudinal bearer have different strength characteristics as a result of a treatment of these areas changing the strength of the wall material compared to non-treated areas; a greater strength thereby exists in the treated wall areas than in the untreated areas.

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