Torsional spring

US5020783A · kind A · utility

Assignee

• IBP Pietzsch GmbH · DE

Inventors

• Bernd Schröder · Jülich, DE
• Rudolf Hartmann · Waldbronn, DE
• Helmut Thate · Rothenfels, DE

Key dates

• Filing date: Jan 26, 1990
• Grant date: Jun 4, 1991
• Expiry date: Jan 26, 2010

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60G2206/82013
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A torsional spring to be secured non-rotating to mutually rotating components at each end. At least two thin-walled piping sections are positioned loosely coaxial and secured together non-rotating at one end, accordingly functioning as a series of resilient sections. There are means of securing them non-rotating to the mutually rotating components at the other end. The spring especially constitutes a torsion bar for a connecting rod that pivots in a bearing mounted stationary in a vehicle and positions either a running wheel or a caterpillar cogwheel at the end remote from the bearing. The piping sections are integrated into each other such that one merges directly into the other at the end where they are secured together non-rotating in a turnback that represents a transition point. The piping sections are preferably made of fiber-reinforced plastic and may have several layers.