Current collector for transmitting energy between a contact wire and a motor coach

US5732803A · kind A · utility

Assignee

• Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. · DE

Inventors

• Elmar Breitbach · Oebisfelde, DE
• Andreas Buter · Braunschweig, DE

Key dates

• Filing date: Nov 7, 1996
• Grant date: Mar 31, 1998
• Expiry date: Nov 7, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60L2200/26
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A current collector for transmitting energy between a contact wire and a motor coach having at least one collector shoe (1) and at least one suspension spring (16) with a positive stiffness, the suspension spring supporting the collector shoe which lies with a contact force from below and against the contact wire. The suspension spring (16) is arranged in parallel with a correction spring (17), the correction spring having a negative stiffness in a zero-crossing of its spring characteristic curve, which coincides with the spring travel of the suspension spring (16), which spring travel corresponds to the desired contact force.