JPS61118581U

JPS61118581U -

Info

Publication number: JPS61118581U
Application number: JP20278285U
Authority: JP
Priority date: 1985-12-27
Filing date: 1985-12-27
Publication date: 1986-07-26

Description

[Brief explanation of drawings]

第１図は要部の斜視図、第２図は電気回路のブ
ロツク図、第３図は第２図における作動回路２８
の詳細図、第４図は第２図における第二設定装置
２４の詳細を示したブロツク図、第５図はタイム
チヤート、第６図はアツプ・ダウンスイツチと係
数用カウンタの関係を示したフローチヤートであ
る。 Figure 1 is a perspective view of the main parts, Figure 2 is a block diagram of the electric circuit, and Figure 3 is the operating circuit 28 in Figure 2.
4 is a block diagram showing details of the second setting device 24 in FIG. 2, FIG. 5 is a time chart, and FIG. 6 is a flow chart showing the relationship between the up/down switch and the coefficient counter. It's a chat.

Claims

[Scope of Claim for Utility Model Registration] The stitch pitch determined by the swing width of the needle bar, the feed pitch of the material to be sewn, and the thickness of the material to be sewn are determined by an arithmetic expression having terms corresponding thereto. A calculation device that calculates the length of needle thread required for each stitch formation and generates a setting signal corresponding to that value; It has a feeding device that feeds it from a supply source to a balance each time it is formed, and a feeding device that can be operated manually to change the coefficient of the term corresponding to the stitch pitch in the calculation formula, and that sends different signals in relation to the operation mode. a first changing means that generates a signal; and a second changing means that is manually operable to change the coefficient of the term corresponding to the thickness of the workpiece in the calculation formula and generates a different signal in relation to the manner of the operation. a display means for displaying a coefficient of a term corresponding to the thickness of the material to be sewn, the sewing machine having: a display means for displaying a coefficient of a term corresponding to the thickness of the material to be sewn; A needle thread supply device for a sewing machine, comprising a reset device that converts the signal into a signal corresponding to a specific coefficient.