JPS60158582U

JPS60158582U - Inner hook holding mechanism of sewing machine

Info

Publication number: JPS60158582U
Application number: JP4697284U
Authority: JP
Inventors: 石井　政夫
Original assignee: ジューキ株式会社
Priority date: 1984-03-31
Filing date: 1984-03-31
Publication date: 1985-10-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、糸の縫目形成の説明図、第２図は、釜の拡散
分解図、第３図は、釜と針の関係を示す説明正面図、第
４図は、第３図のＩＶ−ＩＶ線断面図、第５図は、釜の
平面図、第６図は、上糸の釜周りの動きを示す説明図で
、図■は、針が針孔を通過し上糸のループができたとき
の図、図■は、上糸ループが剣先に捕捉されたときの図
、図■は、上糸が中釜押えの突起により溝に止められて
いるときの図、第７図は、上糸が中釜の溝を通過する状
況を示す説明図で、図Ａは、上糸が溝に入ろうとすると
きの図、図Ｂは、上糸が溝の右端に達し中釜押への突起
により抜は出しを阻止されているときの図、図Ｃは上糸
が溝を通過し終ったときの図、第８図は、従来の中釜押
え機構の斜視図、第９図は、上下送り軸と水平送り軸と
の関係を示す拡散分解図、第１０図は、本考案の実施例
の斜視図である。１・・・釜、２・・・外釜、２ｋ・・・剣先、３・・・
中釜、７・・・中釜押え、７ｔ・・・突起、２１・・・
上下送り軸、２６・・・中釜押え。Fig. 1 is an explanatory diagram of thread stitch formation, Fig. 2 is a diffusion exploded view of the hook, Fig. 3 is an explanatory front view showing the relationship between the hook and the needle, and Fig. 4 is the same as in Fig. 3. 5 is a plan view of the hook, FIG. 6 is an explanatory diagram showing the movement of the upper thread around the hook, and Figure 2 is a loop of the upper thread after the needle passes through the needle hole. Figure ■ is a diagram when the needle thread loop is captured by the tip of the hook, Figure ■ is a diagram when the needle thread is held in the groove by the protrusion of the hook presser, Figure 7 is an explanatory diagram showing the situation in which the upper thread passes through the groove of the inner hook. Figure A is a diagram when the upper thread is about to enter the groove, and Figure B is a diagram when the upper thread reaches the right end of the groove and the inner hook is pushed. Figure C is a diagram when the upper thread has finished passing through the groove, Figure 8 is a perspective view of the conventional hook holding mechanism, Figure 9 10 is a diffused exploded view showing the relationship between the vertical feed axis and the horizontal feed axis, and FIG. 10 is a perspective view of an embodiment of the present invention. 1...Kettle, 2...Outer pot, 2k...Sword tip, 3...
Inner hook, 7...Inner hook holder, 7t...Protrusion, 21...
Vertical feed shaft, 26...Inner hook holder.

Claims

[Scope of utility model registration request]

Place the inner hook presser, which is loosely fitted into a groove in which a protrusion is formed on the inner hook to restrict the rotation of the inner hook, with enough room for the upper thread to pass in the direction of rotation of the outer hook, and move the feed dog horizontally. It is connected to a vertical feed shaft that swings in a reciprocating manner, so that the loop of upper thread caught at the tip of the outer hook is smoothly released from the hook after going around the inner hook. The inner hook presser mechanism of the sewing machine. −