Method and device for knotting the end of a thread to a flat object

US7264282B2 · kind B2 · utility

Assignee

• Teepack Spezialmaschinen GmbH & Co. KG · DE

Inventors

• Stefan Lambertz · Hürth, DE
• Manfred Hauers · Viersen, DE
• Dieter Vits · Neuss, DE

Key dates

• Filing date: May 5, 2004
• Grant date: Sep 4, 2007
• Expiry date: Feb 17, 2026

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65B29/04
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method and a device for knotting the end of a thread to a flat object containing two spaced holes for the knot. The method provides the thread located in front of the holes is pulled to the other side of the object while forming loops, and in that the loop is rotated by at least 270°. Subsequently the end of the thread is pulled through this loop and the knot that is formed is tightened. The device provides three tools, specifically two bars and a gripper.