Patent · US Expired

Truck for high speed rail cars

US4278030A · kind A · utility

15Cited by

5References

2Claims

0Family size

Assignee

Waggon Union GmbH · DE

Inventors

Gunther Ahlborn · Siegen, DE
Eberhard Fiedler · Stuttgart, DE
Henry Hubsch · Siegen, DE
Rolf Kramer · Siegen, DE

Key dates

Filing date	Jan 8, 1979
Grant date	Jul 14, 1981
Priority date	—
Expiry date	Jan 8, 1999

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB61F5/10
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A truck for high speed rail cars, comprises an H-shape truck frame which included bearings for supporting each end of the axles of each wheel set from longitudinally extending leaf springs which are supported in brackets depending from the frame. In addition, air springs are supported on spring troughs which are supported by connecting rods that are pivotally connected between the frame and the troughs. The air springs on the troughs support a cradle which includes spaced upper and lower beam portions or chord members having one or more spaces enclosed therebetween which form auxiliary air spaces providing an additional air chamber for the air springs which are between the troughs and the upper chord member of the cradle.

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