Title:
SEWING QUALITY CONTROL IN SEWING MACHINE
Document Type and Number:
WIPO Patent Application WO/2016/136737
Kind Code:
A1
Abstract:
The present invention relates to a sewing machine which evaluates sewing quality using a thread tightening index. During a sewing operation, an upper thread used length (U) used for each stitch is detected, and a thread tightening index (Ks) for each sewn stitch is calculated on the basis of a stitch length (M) for each stitch, defined in accordance with sewing pattern data, a fabric thickness (t) of the object being sewn, and the detected upper thread used length (U) data. A report (for example a display of the thread tightening index Ks) corresponding to the thread tightening index (Ks) calculated for each sewn stitch is issued. By comparing the thread tightening index (Ks) calculated for each sewn stitch with a reference value (Kref), the acceptability of the thread tightness for each sewn stitch can be assessed, and the assessment results can be reported.
Inventors:
OHASHI ISAO (JP)
NAKAMURA KOICHI (JP)
TAKIZAWA YOSHICHIKA (JP)
ONO MASAYOSHI (JP)
UENISHI HIROTSUGU (JP)
NAKAMURA KOICHI (JP)
TAKIZAWA YOSHICHIKA (JP)
ONO MASAYOSHI (JP)
UENISHI HIROTSUGU (JP)
Application Number:
PCT/JP2016/055259
Publication Date:
September 01, 2016
Filing Date:
February 23, 2016
Export Citation:
Assignee:
TOKAI IND SEWING MACHINE (JP)
NSD CORP (JP)
NSD CORP (JP)
International Classes:
D05B45/00
Foreign References:
| JPH05245285A | 1993-09-24 | |||
| JP2000334187A | 2000-12-05 | |||
| JP2004201946A | 2004-07-22 | |||
| JP2010132394A | 2010-06-17 |
Other References:
See also references of EP 3263756A4
Attorney, Agent or Firm:
IIZUKA, Yoshihito et al. (JP)
Yoshihito Iizuka (JP)
Yoshihito Iizuka (JP)
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