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. 09, 1985
Filed:
Jul. 09, 1982
Yoshimichi Tamiya, Tokyo, JP;
Yasukata Eguchi, Tokyo, JP;
Janome Sewing Machine Co. Ltd., Tokyo, JP;
Abstract
Stitches have once been formed in a sewing machine in four steps to produce a buttonhole, the number of the stitches to be used in each of the steps are stored in a memory, and the stitches in each step are formed with the number of stored stitches for following buttonhole such that all sizes of the buttonholes are made of the same size. The sewing machine is provided with a central circuit which includes a pattern selecting device which selects a cam from a plurality of pattern cams in correspondence to stitching of the designated step in producing the buttonholes. An electronic control device provided in the sewing machine stores the number of stitches formed in accordance with each of the steps with the memory designation, and a stitching mode check device designates a subsequent step in each of the steps. An indicating device provided in the central circuit indicates this designation, and the buttonhole is repeatedly formed. A machine motor control circuit stops a machine motor at completion of the number of stitches stored in each step and the machine motor again starts with selection of new patterns of the stitches.