The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 1988
Filed:
Apr. 03, 1987
Walter Oefner, Otterfing, DE;
Gerhard Singer, Zoetermeer, NL;
Messerschmitt-Bolkow-Blohm GmbH, Munich, DE;
Abstract
In a bending load beam, in particular for the truck or bogie frames of rail vehicles, comprising a fiber composite structure relatively rigid at least in the center of the beam, elastic at the beam end sections, having an upper and a lower fiber cord fashioned as respective upper and lower flanges with the fiber oriented in the longitudinal direction of the beam and with a fiber composite core placed between the fiber cords to maintain their distance, the fiber composite core is composed of fiber composite load webs distributed lamellae-like over the width of the beam. The load webs are oriented in the longitudinal direction of the beam, form the boundaries of hollow chambers, and are bound into the upper and the lower fiber cords. The fibers of the load webs are oriented obliquely to the longitudinal direction of the beam, with which the demands of high torsion resistance, great flexural strength and a defined rigidity increasing from the relatively less rigid end sections toward the beam center are met in ways which do justice to the fiber composite material and save weight.