Yarn tensioning device

US5611499A · kind A · utility

Assignee

• Epic Enterprises, Inc. · US

Inventors

• David Stokes · Boulder, US
• Michael R. Walker · Warsaw, US

Key dates

• Filing date: Dec 28, 1995
• Grant date: Mar 18, 1997
• Expiry date: Dec 28, 2015

Classification

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

Abstract

A yarn tensioning device 10 having three pairs of spring loaded tensioning disks 20 that exert an increasing incremental pressure on the yarn 12 which correlates to the tension in the yarn. The three pairs of tensioning disks 20 are mounted on the front side 42 of a bracket 40 around a post 90. The three posts 90 are coupled together on the back side 44 of the bracket 40 by a back plate 100. A threaded rod 108 is inserted through a center hole 48 in the bracket 40 and threadably engages the back plate 100, such that as the threaded rod 108 is rotated, the back plate 100 moves towards or away from the bracket 40. As the back plate 100 moves away from bracket 40 the posts 90 gets closer to the tensioning disks 20, thus increasing the amount of pressure exerted on the tension disks 20 by the springs 70. As the back plate 100 is moved closer to the bracket 40, the posts 90 get farther away from the bracket 40 and subsequently decrease the compression of the spring 70, thus reducing the amount of pressure exerted on the yarn 12. The tension in the yarn 12 can be adjusted by a color coded tool 130 which allows a technician to consistently adjust a number of devices 10 by referring to the…