Method and apparatus for connecting an upper thread with a lower thread

US4344277A · kind A · utility

Assignee

• W. Schlafhorst AG & Co. · DE

Inventors

• Joachim Rohner · Wittlich, DE
• Heinz Zumfeld · Wittlich, DE
• Reinhard Mauries · Mönchengladbach, DE

Key dates

• Filing date: Jun 2, 1980
• Grant date: Aug 17, 1982
• Expiry date: Jun 2, 2000

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/31
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Method for connecting an upper thread to a lower thread, which includes inserting the threads into a longitudinal groove formed in a chamber for connecting the threads with a thread feeder being movable from a thread receiving position to a thread delivery position, splicing the threads together in the chamber using compressed air acting on the threads from the side, securely holding the threads up to the application of the compressed air when the threads are inserted into the chamber uncrossed, and securely holding the threads which are inserted into the chamber during the splicing in the immediate vicinity of the chamber when the threads are crossed during movement of the thread feeder, and a device for carrying out the method.