Patent · US Expired

Knitting machine

US5329790A · kind A · utility

2Cited by
3References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 4, 1993
Grant dateJul 19, 1994
Priority date
Expiry dateMay 4, 2013

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD04B15/78
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A knitting machine comprises a needle cylinder, stitch-forming knitting needles, displaceable selector elements for initiating specific knitting operations, springs which bias the selector elements into a first position, mechanical control means which transfer the selector elements into a second position contrary to their biasing and electromagnetic selector means which comprise at least one activatable magnetic pole for holding the selector elements in their second position. The displaceable selector elements have a stop edge which cooperates in the second position with a counterstop edge stationary relative to the movement of the selector element. When the stop edge engages on the counterstop edge, the selector elements are located at such a small distance from the electromagnetic selector means, hereby forming an air gap, that their magnetic force is still sufficient to hold the selector elements in their second position.

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