Transfer roll

US6508115B2 · kind B2 · utility

Assignee

• ABB AB · SE

Inventors

• Kjell Ingvarsson · Skultuna, SE
• Dan Johansson · Visby, SE
• Ulf Olsson · Sollentuna, SE
• Pär Gustafsson · Uppsala, SE

Key dates

• Filing date: Jun 15, 2001
• Grant date: Jan 21, 2003
• Expiry date: Jun 15, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2402/60
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A transfer roll 1 for conveying a strip of substantially flat material from one device to another. The strip passes over the transfer roll as the transfer roll rotates. The transfer roll includes a flat and smooth cylindrical outer skin which comprises at least two cylindrical elements. Between the cylindrical elements is arranged a mean 7 for reducing the mechanical stiffness of the cylindrical skin relative to the stiffness of the remainder of the cylindrical skin 2. Suitable means such as a welded joint 9 of reduced cross sectional thickness compared to the remainder of the cylinder are described. Such means separate the cylinder mechanically into a plurality of measurement areas with a predetermined degree of crosstalk. The transfer roll may be used to measure force or tension in strip material more accurately than with previous devices.