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:
Jan. 22, 1991
Filed:
Aug. 28, 1989
Toru Hyodo, Tokyo, JP;
Akiyoshi Sasano, Tokyo, JP;
Janome Sewing Machine Company Limited, Tokyo, JP;
Abstract
A sewing machine capable of setting a feed pitch of a first stitch on zero in a work piece at the beginning of sewing operation, comprises: a needle reciprocable in a vertical direction and joggable in a lateral direction; a feed means which cooperates with a presser foot in operation in synchronism with the needle for feeding a work piece at a desired rate; a stitch-forming mechanism driven by a main drive motor of the sewing machine; a motor-operation detecting means for detecting operating conditions of the main drive motor; a needle-position detecting means for detecting a position of the needle having been disposed above a throat plate; and a presser-foot position detecting means for detecting a position of the presser foot relative to the throat plate, whereby a feed pitch of the feed means is set on zero at a time when the motor-operation detecting means detects a stopping condition of the main drive motor, so that a condition in which the feed pitch of the feed means is set on zero is held until a subsequent feed-control data is inputted.