US 5,020,783 A · Torsional spring

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.

Claims17

Dependent claims

A torsional spring comprising:

at least two thin-walled tubular sections positioned coaxially and loosely separated radially along a common longitudinal axis of said tubular sections;
said tubular sections being secured together at a first non-rotating end, said tubular sections comprising resilient sections;
means for securing a second non-rotating end of said tubular sections to mutually rotating members at said second end and comprising a torsion bar for a connecting rod pivoting in a bearing mounted stationary in a vehicle to position wheel means at an end remote from said bearing;
said tubular sections being integral with one another at said first end and one tubular section merging directly into another tubular section to form a curved integrally continuous portion at said first end, said portion being a transition point at which one tubular section reverses direction and becomes the other coaxial tubular section, said tubular sections comprising a one-piece unit.

1 more element

Dependencies are inferred from the claim text.

Torsional spring

Life of this patent

Torsional spring

Life of this patent

Abstract

Claims17