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:
Jun. 14, 2005
Filed:
Sep. 09, 2003
Shih-fang Chen, Taipei, TW;
Shih-Fang Chen, Taipei, TW;
Ching Chi Machine Co., Ltd., Taipei Hsien, TW;
Abstract
A take-up cam phase adjustment structure of looper thread take-up apparatus of a sewing machine includes a rotary shaft rotatablly mounted in the sewing machine. A thread-guiding plate mounted on the housing for correspondingly pressing a stitching thread against the rim of the take-up cam. A transmission mechanism connected between the lower driving shaft and the rotary shaft. The transmission mechanism includes a driven wheel rotatablly mounted on the rotary shaft. The take-up cam phase adjustment structure includes a locking member for locking the driven wheel on the rotary shaft and a turning section disposed at one end of the rotary shaft. After the second locking member is unscrewed and loosened, by means of rotating the turning section, the relative radial positions between the take-up cam and the lower driving shaft is drivingly adjustable.