Device for incorporating individual reinforcing threads into an unfinished tube and process for manufacturing a thread-reinforced unfinished tube with the aid of this device

US6494980B1 · kind B1 · utility

Assignee

• ContiTech Luftfedersysteme GmbH · DE

Inventors

• Fritz Rothemeyer · Altwarmbüchen, DE
• Achim Hüls · Barsinghausen, DE
• Rainer Oehl · Großburgwedel, DE
• Stefan Wode · Langenhagen, DE

Key dates

• Filing date: Oct 8, 1999
• Grant date: Dec 17, 2002
• Expiry date: Oct 8, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29K2105/101
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A device is disclosed for applying individual reinforcing threads onto a tubular layer. The device contains a positioning ring with equidistant holes that lie on a circumferential line, with the positioning ring surrounding and concentric with a rotationally symmetric, funnel-shaped deflection element. The deflection element deflects the reinforcing threads that are guided from radially outward to radially inward through the holes f the positioning ring into an essentially axial direction, wherein all the threads assume an equidistant spacing from one another. Also disclosed is a process for manufacturing an unfinished tube consisting of several layers with the aid of the device.