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:
Mar. 27, 1984
Filed:
May. 13, 1983
Takashi Kato, Kiryu, JP;
Eltac Co. Ltd., Sizuoka, JP;
Tokai Industrial Sewing Machine Co. Ltd., Kasugai, JP;
Abstract
An embroidery stitch formation device for sewing machine comprising an outer cylinder which is mounted around a needle bar movable up and down in unison with the motion thereof, a nipple fitted to the lower end of the outer cylinder, passages for needle thread and cord provided slantwise through a frame and the outer cylinder, a rotary ring rotatably arranged on the outer cylinder having a driver gear on the upper portion thereof, a support arm provided with a tilted shaft on which is mounted a bobbin for bobbin thread, the support arm being positioned fixedly on the outer periphery of the rotary ring and a guide bar having guide holes for bobbin thread being mounted on the rotary ring, and while a lockstitch seam is being formed by a piece of needle thread and a piece of lockstitch thread, a piece of cord supplied through a passageway down to the needle in parallel therewith is wound with turns of bobbin thread supplied from the bobbin rotating around the outer cylinder by means of a rotating rotary ring, the cord also being locked by the piece of needle thread during the process of lockstitch formation.