JPS58136086U

JPS58136086U - Sewing machine thread cutting device

Info

Publication number: JPS58136086U
Application number: JP3358982U
Authority: JP
Inventors: 寺本　昌史
Original assignee: ペガサスミシン製造株式会社
Priority date: 1982-03-09
Filing date: 1982-03-09
Publication date: 1983-09-13
Also published as: JPS6310147Y2

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]

図は本考案に係る糸切断装置を示すもので、第１図はそ
の斜視図、第２〜４図は作動順を示す図である。１・・・切断刃、２・・・糸フック、３・・・板バネ、
４・・・ブロック、６・・・軸部、７・・・案内部材、
８・・・ビン、９・・・スライドバー、１１・・・レバ
ー、１３・・・ルーパ、１５・・・針。The figures show a thread cutting device according to the present invention; FIG. 1 is a perspective view thereof, and FIGS. 2 to 4 are diagrams showing the order of operation. 1... Cutting blade, 2... Yarn hook, 3... Leaf spring,
4... Block, 6... Shaft portion, 7... Guide member,
8... Bottle, 9... Slide bar, 11... Lever, 13... Looper, 15... Needle.

Claims

[Scope of utility model registration request]

(1) It has a cutting blade, a thread hook that is attached to the cutting blade so that it can move forward and backward, and a spring that brings the hook into elastic contact with the cutting blade, and when the sewing work is completed, the thread hook reciprocates and prevents the thread from becoming tangled. In a sewing machine thread cutting device that captures upper thread and lower thread that are connected to a louver from the end, pulls them to a cutting blade, and cuts them in cooperation with the cutting blade, the cutting blade with which the thread hook comes into elastic contact rotates. The thread hook is movably supported and captures the upper and lower threads.
A thread cutting device characterized by being able to rotate in response to twisting caused by thread tension.

(2) The thread hook is attached to the protruding end of the slide bar that is slidably attached to the guide member, and the cutting blade and the spring are attached to the protruding end of the slide bar that is slidably attached to the guide member. A thread cutting device according to claim 1, which is attached to a thread cutting device.

(3) The thread cutting device according to claim 2, wherein the block is rotatably supported by the guide member.

(4) The block is pivotally supported by the guide member so as to be rotatable and slidable in the axial direction, and is always urged to protrude to the cutting position by a separately provided spring;
The thread cutting device according to claim 2, wherein the thread cutting device engages with the thread hook when the thread hook is retracted and is retracted against the action of the spring.