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:
May. 13, 2008
Filed:
Nov. 16, 2004
Ikuo Tajima, Nagaoya, JP;
Tetsurou Kondou, Tajimi, JP;
Ikuo Tajima, Nagaoya, JP;
Tetsurou Kondou, Tajimi, JP;
Abstract
Sewing machine includes a tension detection section () for detecting tension acting on a sewn material (A) paid out from a rotary holder member, and a drive section for driving the rotary holder member, and the driving operation of the drive section () is controlled on the basis of the detection by the tension detection section. Once the tension acting on the sewn material has increased, the rotary holder member is driven to rotate by the drive section, so that the sewn material can be paid out smoothly from the rotary holder member. The sewing machine is particularly useful in a case where the rotary holder member is constructed into an increased size so that an increased amount of the sewn material can be wound thereon.