Patent · US Expired

Hub for information media

US6102326A · kind A · utility

6Cited by

6References

11Claims

0Family size

Assignee

Emtec Magnetics GmbH · DE

Inventors

August Liepold · Munich, DE
Bernd Scholtysik · Munich, DE
Hartmut Thiele · Munich, DE
Jose' Toral · Munich, DE

Key dates

Filing date	Oct 7, 1997
Grant date	Aug 15, 2000
Priority date	—
Expiry date	Oct 7, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG11B23/044
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A hub, on which compressing of the inner central bore is to be minimized during the winding up of an information medium in tape form under high winding pressure. According to one embodiment, this is achieved by an outer hub ring having a strong profile being provided alongside the outer winding area and by there also being elastically deformable intermediate elements between outer hub ring and inner hub ring. Such elements provide for a compression ratio of the compressed diameters of a the inner to the outer ring of less than 1:4. In the case of a further embodiment, variously shaped openings or notches, which are distributed evenly over the entire circumference, are provided on both sides of the hub between its outer circumference and inner circumference. In a still further embodiment the elastically deformable intermediate elements consist of webs running in radial and circumferential directions and residual portions between openings provided between the periphery of the outer ring and said webs.

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