JPH0449070U

JPH0449070U -

Info

Publication number: JPH0449070U
Application number: JP9227590U
Authority: JP
Priority date: 1990-08-31
Filing date: 1990-08-31
Publication date: 1992-04-24

Description

[Brief explanation of the drawing]

第１図は本考案の１実施例の釜調整装置の平面
図、第２図は第１図の釜調整装置による釜タイミ
ングを変更した時の天秤曲線と釜曲線を示した図
、第３図は従来の釜の構成図、第４図〜第６図は
第３図の動作説明図、第７図は釜曲線と天秤曲線
を示した図、第８図は釜タイミングを変更したと
きの天秤曲線と釜曲線を示した図である。１……釜軸台、２……外釜、３……走路押え、
３′……走路押え、３の尾部、４……ねじ、５…
…剣先、６……中釜、７……キヤツプ、８……中
釜止め部、９……針位置、１０……糸掛部、１２
……長穴。 Fig. 1 is a plan view of a hook adjustment device according to an embodiment of the present invention, Fig. 2 is a diagram showing a balance curve and a hook curve when the hook timing is changed by the hook adjustment device of Fig. 1, and Fig. 3 4 to 6 are diagrams explaining the operation of FIG. 3, FIG. 7 is a diagram showing the hook curve and balance curve, and FIG. 8 is the balance when the hook timing is changed. It is a diagram showing a curve and a pot curve. 1... Hook shaft stand, 2... Outer hook, 3... Runway holder,
3'...Runway presser, tail of 3, 4...screw, 5...
...Sword tip, 6...Inner hook, 7...Cap, 8...Inner hook stop, 9...Needle position, 10...Thread hook, 12
...Long hole.

Claims

[Scope of utility model registration request]

In a sewing machine hook equipped with a tip and running presser foot that rotates around an inner hook attached to the hook section, an elongated hole is provided in the longitudinal direction of the running presser foot, and the timing of the hook is fixed by screwing through the elongated hole. A shuttle adjustment device characterized in that the tail portion of the running path presser is moved forward or backward in the tip direction according to the above.