Process and device for the manufacture of connecting seams between overlapping segments made of elastomeres or thermoplastic materials

US4652328A · kind A · utility

Assignee

• Saar-Gummiwerk GmbH · DE

Inventors

• Hans Bischoff · Wadern, DE
• Franz Koch · Augsburg, DE

Key dates

• Filing date: Jul 24, 1985
• Grant date: Mar 24, 1987
• Expiry date: Jul 24, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C66/91231
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

In a process for connecting material segments made of an elastomere or of a thermoplastic material the sections to be joined (3,4) are placed between two pressure beams (1,2) in the area of the seam (5) to be created. The pressure beams are not mechanically connected to one another. The forces necessary to hold and to attach the material segments (3,4) are generated by the evacuation of suction chambers formed between the cavities (9) in the contact surfaces (6a,6b) of the pressure beams (1,2) and the segments to be joined (3,4).