Rail vehicle having supplementary spring providing the restoring moment at high angles of body roll

US5311821A · kind A · utility

Assignee

• MAN GHH Schienenverkehrstechnik GmbH · DE

Inventors

• Hans-Peter Lang · Harburg, DE
• Alfred Uttner · Donauwörth, DE

Key dates

• Filing date: Jul 23, 1992
• Grant date: May 17, 1994
• Expiry date: Jul 23, 2012

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B61F5/24
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a railway vehicle with a secondary spring arrangement acting between the chassis and the vehicle body which generates a continuously increasing restoring moment at a relative inclination between the two units until the maximum permissible angle of roll is reached, according to the invention a permissible limitation of the angle of roll is achieved without any adverse effect on the derailing limit and ride comfort on straights in a structurally simple and reliable manner, in that the spring arrangement is comparatively soft and there is a passively acting supplementary spring with a limited range of rotation (rotation play coupling) connected in parallel to the spring arrangement, which operates virtually without restoring moment in a partial range of slight roll angle movements, and at greater deviations of the roll angle within the permissible range, generates a steeply increasing restoring moment which is many times greater than that of the spring arrangement at the maximum permissible angle of body roll.