JPS63153973U

JPS63153973U -

Info

Publication number: JPS63153973U
Application number: JP4784787U
Authority: JP
Priority date: 1987-03-31
Filing date: 1987-03-31
Publication date: 1988-10-11
Also published as: JPH0238697Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す正面図、第
２図は第１図に示した揺動板および係止板の拡大
側面図、第３図は第２図に示したものの横断面図
、第４図は第１図に示した係合体周辺の機構の拡
大正面図、第５は第４図に示したものの要部平面
図、第６図は第１図に示した係合体周辺の機構の
拡大正面図、第７図は第１図示したものの要部平
面図、第８図は制御装置による制御動作を示すフ
ローチヤート、第９図は一重縫いにおける各スイ
ツチおよびマグネツトの動作状態を示すタイミン
グチヤート、第１０図は二重縫いにおける各スイ
ツチおよびマグネツトの動作状態を示すタイミン
グチヤートである。６……メス、Ａ……メス駆動機構、２９……メ
ス止めマグネツト（駆動阻止手段）、５３……制
御装置（制御手段）、５４……一重縫い／二重縫
い選択スイツチ（設定手段）。 Fig. 1 is a front view showing one embodiment of this invention, Fig. 2 is an enlarged side view of the rocking plate and locking plate shown in Fig. 1, and Fig. 3 is a cross section of the one shown in Fig. 2. Figure 4 is an enlarged front view of the mechanism around the engaging body shown in Figure 1, Figure 5 is a plan view of the main part of the mechanism shown in Figure 4, and Figure 6 is the vicinity of the engaging body shown in Figure 1. Fig. 7 is a plan view of the main part of the mechanism shown in Fig. 1, Fig. 8 is a flowchart showing the control operation by the control device, and Fig. 9 shows the operating status of each switch and magnet during single stitching. FIG. 10 is a timing chart showing the operating status of each switch and magnet during double stitching. 6... Knife, A... Knife drive mechanism, 29... Knife retaining magnet (drive blocking means), 53... Control device (control means), 54... Single stitch/double stitch selection switch (setting means).

補正昭６２．７．２１図面の簡単な説明を次のように補正する。明細書第２０頁９行目の「第５」を「第５図」
と補正する。Amendment July 21, 1982 The brief description of the drawing is amended as follows. “5th” on page 20, line 9 of the specification is “Figure 5”
and correct it.

Claims

[Scope of utility model registration request]

A buttonhole sewing machine which performs at least one oversewing around a planned location for forming a buttonhole on a cloth, and after completing the oversewing, forms a buttonhole at the planned location using a scalpel, the buttonhole forming machine comprising: A setting means for setting the number of overlock stitches to be applied to a planned location, a knife drive mechanism for passing a knife through the location where a buttonhole is to be formed when the overlock operation is completed, and a drive blocking mechanism for blocking the operation of this knife drive mechanism. What is claimed is: 1. A buttonhole sewing machine comprising: a control means for controlling the operation of the drive blocking means so as to stop the operation of the drive blocking means during the final overlapping stitching operation.