METHOD OF MEASURING ELASTIC CHARACTERISTICS OF KITTING YARN AND KNITTING MACHINE

Title:

METHOD OF MEASURING ELASTIC CHARACTERISTICS OF KITTING YARN AND KNITTING MACHINE

Document Type and Number:

WIPO Patent Application WO/2008/032451

Kind Code:

A1

Abstract:

A method of measuring the elastic characteristics of a knitting yarn capable of self-evaluating the characteristics of an elastic yarn in use by a knitting machine, and a knitting machine. When a yarn feed roller (16) is reverse-rotated with the tip end of a knitting yarn (5) held with a gripper (7), the tension of the knitting yarn (5) between the yarn feed roller (16) and the gripper (7) can be increased. Free length of the knitting yarn (5) remaining in a distance W section under this yarn tension T is W-d assuming the returned length of the fed knitting yarn (5) is d when the yarn feed roller (16) is forward-rotated to return a yarn tension to a lower limit or lower in the vicinity of 0. Since an elongation percentage under yarn tension T is W/(W-d) Œ 100%, a flat-knitting machine (1) is used to be able to self-evaluate the elastic characteristics of the knitting yarn (5).

Inventors:

WADA TOSHIHIDE (JP)
YAMAGATA TAKEO (JP)

Application Number:

PCT/JP2007/001000

Publication Date:

March 20, 2008

Filing Date:

September 13, 2007

Export Citation:

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Assignee:

SHIMA SEIKI MFG (JP)
WADA TOSHIHIDE (JP)
YAMAGATA TAKEO (JP)

International Classes:

D04B15/50

Domestic Patent References:

WO2004094712A1	2004-11-04
WO2004094712A1	2004-11-04

Foreign References:

JP2006118059A	2006-05-11
JPH06200453A	1994-07-19
JP3010171B2	2000-02-14
JPH08120548A	1996-05-14
JPH03130443A	1991-06-04
US3858416A	1975-01-07
JP2005089933A	2005-04-07
JPH03130443A	1991-06-04
JP2001130443A	2001-05-15
US3858416A	1975-01-07
JP2005089933A	2005-04-07

Other References: