Patent · US Expired

Compound needle

US6598430B2 · kind B2 · utility

2Cited by

7References

11Claims

0Family size

Assignees

GROZ-BECKERT KG · DE
SHIMA SEIKI MFG., LTD. · JP

Inventors

Klaus Ruoff · Albstadt, DE
Norbert Gomeringer · Gammertingen, DE
Andreas Dietz · Balingen, DE

Key dates

Filing date	Jun 21, 2002
Grant date	Jul 29, 2003
Priority date	—
Expiry date	Jun 21, 2022

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD04B35/06
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A compound needle (1) is provided with a slider (8) having two slider springs (11, 12). These are arched away from each other in a section immediately adjoining their insertion funnel (28). The compound needle has a slider slit (4), which initially is relatively narrow at its inlet (15), so that a guide section (4a) has been established there. Thereafter the slider slit (4) widens, so that a running section (4b) is established. The lateral bulge of the slider springs (11, 12) is of such a dimension that the slider (8) runs free in the running section (4b), and is guided without lateral play in the guide section (4a). The compound needle (1) also operates precisely in case of tension forces acting laterally on the slider (8) and requires only a small opening width of its funnel (28).

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