Patent · US Expired

Compound needle with improved slider

US6546761B2 · kind B2 · utility

1Cited by

6References

7Claims

0Family size

Assignees

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

Inventors

Klaus Ruoff · Albstadt, DE
Jürgen Schneider · Kirchzarten, DE
Andreas Dietz · Balingen, DE

Key dates

Filing date	Jun 21, 2002
Grant date	Apr 15, 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), whose ends constitute an open funnel pointing toward the hook (3). The ends, or legs (21, 22), constituting the funnel, are flattened. Therefore, starting at a starting point, the thickness of the material is reduced in the tapered area (29) toward the ends of the slider springs (11, 12). By means of this a correct functioning of the compound needle is also provided if the slider (8) is not completely centered. Moreover, it is possible to improve the easy movement of the slider (8) in the slider slit in that the funnel, formed by the legs (21, 22), can be embodied to be narrower at a constant width, than without the taper of the slider springs (11, 12).

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