Patent · US Expired

Bending spring made of fiber compound material

US4457500A · kind A · utility

12Cited by

4References

10Claims

0Family size

Assignee

Messerschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftung · DE

Inventors

Franz Drachenberg · Baldham, DE
Walter Oefner · Otterfing, DE

Key dates

Filing date	Apr 28, 1982
Grant date	Jul 3, 1984
Priority date	—
Expiry date	Apr 28, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24132
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A bending spring or similar component made of fiber compound material is so onstructed that the stress on the fiber reinforcing strands is optimized while the stress on the matrix of resinous impregnating material is reduced. For this purpose fiber inserts divide the matrix of suitable binder material which holds unidirectionally extending reinforcing fibers embedded in the matrix. The fiber inserts have a main fiber orientation extending about radially to the longitudinal bending axis of the spring. The fiber inserts may comprise layers of fiber webbings, for example double layers, whereby the fiber orientation in one webbing may differ from the fiber orientation in the other webbing.

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