Winding spindle

US5217175A · kind A · utility

Assignee

• Barmag AG · DE

Inventors

• Albert Stitz · Lingen (Ems), DE
• Martin Zingsem · Remscheid, DE

Key dates

• Filing date: Aug 3, 1992
• Grant date: Jun 8, 1993
• Expiry date: Aug 3, 2012

Classification

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

Abstract

A yarn winding spindle is disclosed which is characterized by the ability to grip the interior of a tubular bobbin during the winding of the yarn thereon and then release the bobbin to facilitate doffing. The spindle comprises a cylindrical support member which is composed of a plurality of axially spaced apart annular entrainment members and a plurality of annular, elastic clamping members mounted between adjacent entrainment members. The elastic members are configured and internally self-biased so as to assume a radially extended position to engage the bobbin in the absence of an external force being applied thereto, and to assume a radially retracted position to release the bobbin upon a biasing force being applied thereto.