The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2017
Filed:
Aug. 04, 2015
Applicant:
Janome Sewing Machine Co., Ltd., Hachioji-shi, Tokyo, JP;
Inventors:
Assignee:
Tokyo Electron Limited, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D05B 47/04 (2006.01); D05B 19/12 (2006.01); D05B 63/00 (2006.01);
U.S. Cl.
CPC ...
D05B 47/04 (2013.01); D05B 19/12 (2013.01); D05B 63/00 (2013.01);
Abstract
A sewing machine includes a sewing-machine motor that drives, through an upper shaft and a lower shaft, a thread take-up lever, a needle bar, and a shuttle in conjunction one another. In addition, the sewing machine includes a stepping motor different from the sewing-machine motor. A bobbin-thread supply member is driven by drive power from the stepping motor, and applies tension to a bobbin thread in accordance with the drive timing of the stepping motor and the drive amount of the stepping motor. The drive timing of the stepping motor is variable in accordance with a sewing condition.