JPS6018771U

JPS6018771U - Overlock sewing machine

Info

Publication number: JPS6018771U
Application number: JP11124583U
Authority: JP
Inventors: 荻野　守男; 佐藤　栄吉
Original assignee: ブラザー工業株式会社; 瑞浪精機株式会社
Priority date: 1983-07-18
Filing date: 1983-07-18
Publication date: 1985-02-08
Also published as: JPS637028Y2

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 the drawing]

第１図〜第５図はこの考案を具体化した第一実施例を示
すものであって、第１図はオーバーロックミシンの要部
を示す正面図、第２図は一本針二本糸の縁かがり縫時に
おける上ルーパ等の部分拡大正面図、第３図は同じく平
面図、第４図は第３図のＡ−Ａ線における断面図、第５
図は係合板等　−を示す分解斜視図である。第６図及び
第７図はこの考案を具体化した第二実施例を示すもので
あって、第６図は上ルーパ等を示す平面図、第７図は正
面図である。Figures 1 to 5 show a first embodiment embodying this invention. Figure 1 is a front view showing the main parts of an overlock sewing machine, and Figure 2 is a single needle, double thread sewing machine. FIG. 3 is a plan view, FIG. 4 is a sectional view taken along line A-A in FIG. 3, and FIG.
The figure is an exploded perspective view showing the engagement plate, etc. FIGS. 6 and 7 show a second embodiment embodying this invention, in which FIG. 6 is a plan view showing the upper looper, etc., and FIG. 7 is a front view.

Claims

[Claims for Utility Model Registration] 1. The upper looper 8 extending from the upper looper stand 6 mounted on the upper looper shaft 4 toward the trajectory line of the needle 9 is connected to the lower looper 1.
In an overlock sewing machine that performs one-needle, three-thread overlock stitching in cooperation with 2 and needle 9, the base end is attached to the upper looper stand 6 or the upper looper shaft 4, and the upper looper A recess 8 formed on the upper edge near the tip of the upper looper 8 at the tip extending toward the tip of the upper looper 8.
An engaging portion 2 that engages with b to form a key and a looper 28
2, and the engagement plate 18 is capable of taking a position where the engagement portion 22 engages with the recess 8b and a position separated from the recess 8b; It is formed of an elastic material so as to be placed in one of the positions, and the elastic force of the engaging plate 18 engages with a part of the engaging plate 18 to move the engaging portion 22 to the other position. By operating the operating member 25 to engage the engaging portion 22 of the engaging plate 18 in the recess 8b, the edge of the single needle and double thread can be moved. An overlock sewing machine that can perform overlock stitches. 2. The overlock sewing machine according to claim 1, wherein the engaging plate 18 is formed of a leaf spring material. 3 The operation member 25 is rotatably supported on the upper looper base 6, and based on the rotation operation, the engagement plate 18
- Two cam portions 26a, 26b, 30a that can be selectively placed in the two positions. 30b. The overlock sewing machine according to claim 1 or 2 of the utility model registration claim. 4. The overlock sewing machine according to claim 3, wherein the operating member 25 is supported on an axis that is perpendicular to the upper louver shaft 4 and extends back and forth. 5. The overlock sewing machine according to claim 3, wherein the operating member 25 is supported on the axis of the upper looper.