Patent · US Expired

Needle roller arrangement with several needle rollers for perforating a material web

US5802945A · kind A · utility

5Cited by

9References

8Claims

0Family size

Assignee

Windmöller & Hölscher KG · DE

Inventors

Friedhelm Brinkmeier · Lengerich, DE
Achim Seeberger · Lengerich, DE

Key dates

Filing date	Nov 22, 1996
Grant date	Sep 8, 1998
Priority date	—
Expiry date	Nov 22, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/9314
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A needle roller arrangement includes several needle rollers arranged in a freely rotatable manner in a rotary frame on a circular line which is concentric to its rotational axis. One of the needle rollers interacts with a brush roller for perforating a material web passing through the arrangement. In order to be able to lift the needle roller interacting with the brush roller away and replace it while requiring less energy, each roller is arranged inside the rotary frame such that it can be lifted off of the brush roller. The needle roller interacting with the brush roller is respectively provided with an arrangement for removal from the brush roller and application to the brush roller.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.