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:
Aug. 27, 1996
Filed:
Jun. 28, 1995
Takashi Yamashita, Tokyo, JP;
Minoru Wada, Tokyo, JP;
Juki Corporation, Tokyo, JP;
Abstract
A shuttle hook driving device for driving a shuttle hook having a beak disposed between a needle drop position and a bobbin thread lead-out point of a bobbin in a sewing machine which includes a main shaft, a needle bar, a thread take-up lever, and a conversion mechanism for converting a rotation of the main shaft into an oscillating motion, the shuttle hook driving device comprises: a counter balance connected to the needle bar and the thread take-up lever, the counter balance being mounted on the main shaft such that the counter balance is displaced a predetermined angle with respect to the main shaft as compared with a standard sewing machine; an output shaft received the oscillating motion from the conversion mechanism, the output shaft being connected to the conversion device in right-left inverted relation with respect to an axis thereof as compared with the standard sewing machine, using an uppermost point of the needle bar as a reference; and a driver connected to the output shaft, for driving the shuttle hook.