JPS6355968U

JPS6355968U -

Info

Publication number: JPS6355968U
Application number: JP15080786U
Authority: JP
Priority date: 1986-09-30
Filing date: 1986-09-30
Publication date: 1988-04-14
Anticipated expiration: 2001-09-30
Also published as: JP2504080Y2

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化したジグザグミシン
の一実施例を示す部分正断面図、第２図はその部
分平面図、第３図は同じく部分側断面図、第４図
は作用を説明するための線図、第５図は従来構成
の作用を説明するための線図である。４……固定支軸、６……針棒支持枠、８……針
棒、９……縫針、９ａ……目孔、１１……回転体
、１４……連結杆、１７……釜、１７ａ……剣先
。 Fig. 1 is a partial front sectional view showing an embodiment of a zigzag sewing machine embodying this invention, Fig. 2 is a partial plan view thereof, Fig. 3 is a partial side sectional view, and Fig. 4 explains the operation. FIG. 5 is a diagram for explaining the operation of the conventional configuration. 4... Fixed support shaft, 6... Needle bar support frame, 8... Needle bar, 9... Sewing needle, 9a... Eye hole, 11... Rotating body, 14... Connecting rod, 17... Hook, 17a ...The tip of the sword.

Claims

[Claims for Utility Model Registration] A needle bar support frame 6 that supports a needle bar 8 having a sewing needle 9 attached to its lower end so as to be movable up and down, and is attached so as to be able to swing in the lateral direction, and the needle bar support frame 6. A rotating body 1 that is rotationally driven around an axis that intersects with the oscillating motion plane of 6.
1 and a needle bar 8 whose one end is rotatably connected to the rotating body 11 at a position offset from its rotational axis, and whose other end is below the one end.
A hook 17 having a connecting rod 14 rotatably connected to the sewing needle 1 and a tip 17a that moves in synchronization with the vertical reciprocation of the needle bar 8 in order to capture the thread loop formed in the eye hole 9a of the sewing needle 9. and the connecting rod 14 when catching the thread ring.
In a zigzag sewing machine in which the moving relationship between the rotating body 11 and the hook 17 is set such that one end and the tip 17a move in the same direction with respect to the swing movement direction of the needle bar support frame 6, the needle bar support frame 6 is mounted so as to be able to swing around a substantially vertical fixed axis, and with the sewing needle 9 set at each of the two swing limit positions of its swing movement range, the tip 17a captures the thread loop. A zigzag sewing machine characterized in that the height of the sewing needle 9 at each swing limit position is substantially constant.