JP2001070681A - Needle thread eyelet device for hole darning machine - Google Patents
Needle thread eyelet device for hole darning machineInfo
- Publication number
- JP2001070681A JP2001070681A JP24696599A JP24696599A JP2001070681A JP 2001070681 A JP2001070681 A JP 2001070681A JP 24696599 A JP24696599 A JP 24696599A JP 24696599 A JP24696599 A JP 24696599A JP 2001070681 A JP2001070681 A JP 2001070681A
- Authority
- JP
- Japan
- Prior art keywords
- thread
- needle
- eyelet
- needle thread
- needle bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、付属のカッターに
よって布に鳩目ボタン穴を開けた後若しくは開ける前
に、その縁に、針糸、ルーパー糸及び芯糸によって二重
環縫い目を形成する鳩目穴かがりミシンにおける針糸案
内装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eyelet which forms a double ring seam with a needle thread, a looper thread and a core thread at the edge thereof after or before the eyelet buttonhole is formed in the cloth by an attached cutter. The present invention relates to a needle thread guide device for a hole hogging machine.
【０００２】[0002]
【従来の技術】鳩目穴かがりミシンとして、従来、図６
に示すものが知られている。そのミシンには、不図示の
ミシン主軸の回転がカムを介して上下運動として伝えら
れ、針糸Ｙが上部から内部を通り、下端の縫針２の針穴
へ通される針棒１と、ミシン主軸の回転がカムを介して
揺動運動として伝えられ、針糸Ｙの引き出し、引き締め
を行う天秤３と、針糸Ｙの張力を調整し、縫い目形成時
の糸消費量を調整する糸調子５と、針棒１と同期して揺
動し、針棒１との協働により縫い目を形成する不図示の
ルーパー等が設けられている。そして、このミシンの針
糸Ｙは、糸案内４、糸調子５、天秤３を経て針棒１に入
る経路をとっている。2. Description of the Related Art Conventionally, as an eyelet buttonhole sewing machine, FIG.
The following are known. The rotation of the main shaft of the sewing machine (not shown) is transmitted to the sewing machine via a cam as a vertical movement, and a needle thread Y passes through the inside from the upper part, and is passed through the needle hole of the sewing needle 2 at the lower end. The rotation of the main shaft is transmitted as a swinging motion via a cam, and a balance 3 for pulling out and tightening the needle thread Y, and a thread tensioner 5 for adjusting the tension of the needle thread Y and adjusting the thread consumption at the time of forming the seam. And a looper (not shown) that swings in synchronization with the needle bar 1 and forms a seam in cooperation with the needle bar 1. The needle thread Y of the sewing machine passes through the thread guide 4, the thread tension 5, and the balance 3 and enters the needle bar 1.
【０００３】[0003]
【発明が解決しようとする課題】上記の鳩目穴かがりミ
シンの針糸案内部の構成は、針棒１、ルーパー、天秤３
の各揺動運動のストロークが共にカムの形状によって定
まる一定のものであり、糸案内４、糸調子５も位置が固
定されているので、糸引き量及び糸繰り出し量は一定で
ある。しかも、糸調子５のテンションダイヤル以外には
調整手段がなく、縫い目の糸締まりや縫い目の硬さ等の
調整範囲が狭い上に、縫製の途中での変更ができないの
で、鳩目穴かがり各部の縫い目を均一にすることが困難
である。The structure of the needle thread guide of the eyelet buttonhole sewing machine described above includes a needle bar 1, a looper, and a balance 3.
Is constant depending on the shape of the cam, and the positions of the thread guide 4 and the thread tension 5 are also fixed, so that the amount of threading and the amount of thread feeding are constant. In addition, there is no adjusting means other than the tension dial of the thread tension 5, so that the adjustment range such as the thread tightness and the seam hardness of the seam is narrow, and it is not possible to change the seam in the middle of sewing. Is difficult to make uniform.
【０００４】本発明は、縫製中にも糸繰り出し量を変更
し得る鳩目穴かがりミシンの針糸案内装置を提供するこ
とを目的としている。[0004] It is an object of the present invention to provide a needle thread guide device for an eyelet buttonhole sewing machine capable of changing the thread feeding amount even during sewing.
【０００５】[0005]
【課題を解決するするための手段】本発明の鳩目穴かが
りミシンの針糸案内装置は、針糸の引き出し引き締めを
行う天秤３と、針糸Ｙが上部から内部へ通される針棒１
との間に設けられ、その間の針糸Ｙに係合する針棒糸案
内６と、針棒糸案内６の位置を変えることにより針糸経
路を変えるアクチュエータ７と、アクチュエータ７を鳩
目穴かがりの所定領域で駆動させる制御手段（ＣＰＵ
等）とよりなるものである。SUMMARY OF THE INVENTION A needle thread guide device of an eyelet buttonhole sewing machine according to the present invention comprises a balance 3 for pulling out and tightening a needle thread, and a needle bar 1 through which a needle thread Y is passed from above to the inside.
, A needle bar thread guide 6 that engages the needle thread Y therebetween, an actuator 7 that changes the needle thread path by changing the position of the needle bar thread guide 6, and an actuator 7 that is Control means (CPU for driving in a predetermined area)
Etc.).
【０００６】本発明の鳩目穴かがりミシンの他の針糸案
内装置は、針糸供給源と、針糸Ｙが上部から内部へ通さ
れる針棒１との間の糸経路の所定位置で針糸Ｙを挟持す
る糸調子１１と、糸調子１１の糸挟持力を鳩目穴かがり
の所定領域で変更する制御手段（ＣＰＵ等）とよりなる
ものである。Another needle thread guide device of the eyelet buttonhole sewing machine according to the present invention is a needle thread feeding device and a needle thread at a predetermined position in a thread path between a needle thread supply source and a needle bar 1 through which a needle thread Y passes. It comprises a thread tension 11 for clamping the thread Y, and a control means (CPU or the like) for changing the thread clamping force of the thread tension 11 in a predetermined region of eyelet buttonhole.
【０００７】制御手段より、鳩目穴かがりの直線部と鳩
目部で異なる針糸張力となるよう信号を発するようにす
る。The control means generates a signal so that the needle thread tension is different between the linear portion of the eyelet hole and the eyelet portion.
【０００８】制御手段より、鳩目穴かがりの直線部で、
上死点位置にある針棒上端と天秤先端とを結ぶ線上に針
棒糸案内６の糸係合部６ａが位置し、鳩目部で、上死点
位置にある針棒上端と天秤先端とを結ぶ線より下方に針
棒糸案内６の糸係合部６ａが位置するよう信号を発する
ようにする。[0008] From the control means, in the linear portion of the eyelet hole
The thread engaging portion 6a of the needle bar thread guide 6 is located on a line connecting the upper end of the needle bar at the top dead center position and the top end of the balance, and the upper end of the needle bar at the top dead center position and the top end of the balance are located at the eyelet. A signal is issued so that the thread engaging portion 6a of the needle bar thread guide 6 is located below the connecting line.
【０００９】所定領域は、鳩目穴かがりの縫い始め部、
縫い終わり部、鳩目部の少なくとも１カ所とする。[0009] The predetermined area is a sewing start part of an eyelet buttonhole,
At least one of the end of sewing and the eyelet.
【００１０】本発明の鳩目穴かがりミシンの他の針糸案
内装置は、針糸Ｙの引き出し引き締めを行う天秤３と、
針糸Ｙが上部から内部へ通される針棒１との間に設けら
れ、その間の針糸Ｙに係合する針棒糸案内６と、針棒糸
案内６の位置を変えることにより針糸経路を変えるアク
チュエータ７と、鳩目穴かがりのかがり幅又は縫いピッ
チに応じてアクチュエータ７を駆動させる制御手段（Ｃ
ＰＵ等）とよりなるものであ。Another needle thread guide device of the eyelet buttonhole sewing machine of the present invention includes a balance 3 for pulling out and tightening the needle thread Y;
A needle thread Y is provided between a needle bar 1 through which the needle thread Y is passed from the upper portion to the inside. A needle bar thread guide 6 engaging with the needle thread Y therebetween and a needle thread An actuator 7 for changing the path, and control means (C for driving the actuator 7 in accordance with the eyelet overhole width or the sewing pitch)
PU etc.).
【００１１】制御手段は、鳩目穴かがりの所定領域で駆
動される。[0011] The control means is driven in a predetermined region of the eyelet buttonhole.
【００１２】[0012]
【発明の実施の形態】図1ないし図５を参照し、本発明
の鳩目穴かがりミシンの針糸案内装置の実施形態につい
て説明する。なお、前述した従来のものと同一ないし相
当する構成部材については、同一符号を付す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 5, an embodiment of a needle thread guide device of an eyelet buttonhole sewing machine according to the present invention will be described. The same reference numerals are given to the same or corresponding components as those of the above-described conventional one.
【００１３】鳩目穴かがりミシンそのものは周知のもの
であり、本発明においては、針糸案内部に特徴を有する
ものである。従って、鳩目穴かがりミシンそのものの説
明は省略し、針糸案内部の説明を行なう。[0013] The eyelet buttonhole sewing machine itself is well known, and in the present invention, the needle thread guide portion has a feature. Therefore, the description of the eyelet buttonhole sewing machine itself will be omitted, and the needle thread guide will be described.
【００１４】針糸案内装置は、図１に示すように、鳩目
穴かがりミシンの針棒１と天秤３との間のミシンアーム
に設けられた、針糸Ｙの糸道の屈曲程度を変化させるこ
とにより縫目の締まりの程度を調節する針棒糸案内６
と、その針棒糸案内６を駆動するためのアクチュエータ
７とよりなっている。針糸案内部には、この他に、従来
のものと同様に、針糸供給源側の糸案内４と、その糸道
下流側の糸調子５とが設けられている。As shown in FIG. 1, the needle thread guiding device changes the degree of bending of the thread path of the needle thread Y provided on the sewing machine arm between the needle bar 1 and the balance 3 of the eyelet buttonhole sewing machine. Needle bar thread guide 6 that adjusts the degree of seam tightening
And an actuator 7 for driving the needle bar thread guide 6. In addition to the above, the needle thread guide section is provided with a thread guide 4 on the side of the needle thread supply source and a thread tension 5 on the downstream side of the thread path, similarly to the conventional one.
【００１５】針棒糸案内６は、ミシンアームＡの据付部
材８に支軸９により屈曲部が回動可能に支持されたＬ字
状のレバーよりなっている。そのほぼ水平に向いた部分
の自由端には、糸通し穴６ａが設けられている。糸通し
穴６ａは、選択的に使用できるように、図１（３）に示
すように複数設けることもできる。The needle bar thread guide 6 is composed of an L-shaped lever whose bent portion is rotatably supported by a support shaft 9 on a mounting member 8 of the sewing machine arm A. A threading hole 6a is provided at a free end of the substantially horizontal portion. As shown in FIG. 1 (3), a plurality of threading holes 6a can be provided so as to be selectively used.
【００１６】アクチュエータ７は、電磁ソレノイド、エ
アーシリンダ等よりなるものであり、そのロッド７ａ
は、針棒糸案内６のほぼ鉛直に向いた部分の下端に、ピ
ン１０によって連結されている。従って、アクチュエー
タ７のロッド７ａの伸び、縮みにより、針棒糸案内６の
糸通し穴６ａの位置は、上、下に変位する。The actuator 7 comprises an electromagnetic solenoid, an air cylinder, etc., and its rod 7a
Is connected by a pin 10 to the lower end of a portion of the needle bar thread guide 6 which faces substantially vertically. Therefore, the position of the threading hole 6a of the needle bar thread guide 6 is displaced upward and downward due to extension and contraction of the rod 7a of the actuator 7.
【００１７】このアクチュエータ７は、図１（２）に示
すコントローラ（制御手段）の中央処理装置（ＣＰＵ）
からの予め定められたプログラムに従った指令信号によ
り制御される。その中央処理装置（ＣＰＵ）には、適宜
容量の読取り専用メモリ（ＲＯＭ）、随意読出し書込み
メモリ（ＲＡＭ）により形成された記憶装置、設定入力
手段、針上位置検出手段等が接続されており、他に布送
りモータも接続されている。指令信号は、針棒１が最上
位置に上昇したことを針上位置検出手段が検出したとき
に、ＣＰＵより発せられる。The actuator 7 is a central processing unit (CPU) of a controller (control means) shown in FIG.
Is controlled by a command signal in accordance with a predetermined program from the computer. The central processing unit (CPU) is connected to a read only memory (ROM) having an appropriate capacity, a storage device formed by an optional read / write memory (RAM), setting input means, needle position detecting means, and the like. In addition, a cloth feed motor is connected. The command signal is issued by the CPU when the needle position detecting means detects that the needle bar 1 has risen to the uppermost position.
【００１８】この鳩目穴かがり縫いミシンの針糸案内部
における針糸経路は、次の通りである。即ち、針糸Ｙは
糸案内４から糸調子５、天秤３、針棒糸案内６の糸通し
穴６ａ、針棒１のように通される。The needle thread path in the needle thread guide portion of the eyelet buttonhole sewing machine is as follows. That is, the needle thread Y is passed from the thread guide 4 to the thread tension 5, the balance 3, the threading hole 6a of the needle bar thread guide 6, and the needle bar 1.
【００１９】ここで、本発明の針糸案内装置における、
針棒糸案内６の糸通し穴６ａの上、下位置の違いによる
針糸張力の違いについて説明する。Here, in the needle thread guide device of the present invention,
The difference in the needle thread tension due to the difference between the upper and lower positions of the threading hole 6a of the needle bar thread guide 6 will be described.
【００２０】図２（１）に示すように、針棒１が上死点
位置にあるときの、針棒１の上端と天秤３の先端とを結
ぶ線より下方に針棒糸案内の糸通し穴６ａが位置してい
る場合には、針棒１が下がっているときに、天秤３から
針棒上端への針糸Ｙの糸道はほぼ直線的になり、針棒１
が上がっているときに、針糸Ｙの糸道は糸通し穴６ａの
位置で大きく屈曲し、針糸Ｙは締め上げられ、縫い目形
成時にしっかりと締められ、縫い目は硬くなる。この場
合、図２（２）に示すように、針棒糸案内の糸通し穴６
ａ（６ａ’）の位置を前後に移動させることにより、上
記針糸Ｙの糸道の屈曲程度を変化させることができ、縫
い目の締まりの程度を調節することができる。As shown in FIG. 2A, when the needle bar 1 is at the top dead center position, the threading of the needle bar thread guide is below the line connecting the upper end of the needle bar 1 and the tip of the balance 3. When the hole 6a is located, when the needle bar 1 is lowered, the thread path of the needle thread Y from the balance 3 to the upper end of the needle bar becomes substantially straight, and the needle bar 1
When the needle thread Y is raised, the thread path of the needle thread Y is largely bent at the position of the threading hole 6a, the needle thread Y is tightened up, firmly tightened at the time of forming the seam, and the seam becomes hard. In this case, as shown in FIG.
By moving the position a (6a ') back and forth, the degree of bending of the thread path of the needle thread Y can be changed, and the degree of tightening of the seam can be adjusted.
【００２１】逆に、図２（３）に示すように、針棒１が
上死点位置にあるときの、針棒１の上端と天秤３の先端
とを結ぶ線上に針棒糸案内の糸通し穴６ａが位置してい
る場合には、針棒１が下がっているときに、天秤３から
針棒上端への針糸Ｙの糸道は糸通し穴６ａの位置で大き
く屈曲しているが、針棒１が上がっているときには、糸
通し穴６ａの位置での屈曲が少なくなり、針糸Ｙはゆる
み、縫い目形成時にゆるく締められ、縫い目は柔らかく
なる。この場合も、図２（４）に示すように、針棒糸案
内の糸通し穴６ａ（６ａ’）の位置を前後に移動させる
ことにより、上記針糸Ｙの糸道の屈曲程度を変化させる
ことができ、縫い目の締まりの程度を調節することがで
きる。Conversely, as shown in FIG. 2 (3), when the needle bar 1 is at the top dead center position, the needle bar thread guide yarn is placed on a line connecting the upper end of the needle bar 1 and the tip of the balance 3. When the through-hole 6a is located, when the needle bar 1 is lowered, the thread path of the needle thread Y from the balance 3 to the upper end of the needle bar is largely bent at the position of the threading hole 6a. When the needle bar 1 is raised, the bending at the position of the threading hole 6a is reduced, the needle thread Y is loosened, loosely tightened at the time of forming the seam, and the seam is softened. Also in this case, as shown in FIG. 2 (4), by moving the position of the threading hole 6a (6a ') of the needle bar thread guide back and forth, the bending degree of the thread path of the needle thread Y is changed. And the degree of seam tightening can be adjusted.
【００２２】また、図２（５）、（６）に示すように、
針棒糸案内の糸通し穴６ａ（６ａ’）位置を斜め方向に
移動させるても、針糸Ｙの糸道の屈曲程度が変化し、縫
い目の締まりの程度を調節することができる。As shown in FIGS. 2 (5) and (6),
Even if the position of the threading hole 6a (6a ') of the needle bar thread guide is moved obliquely, the degree of bending of the thread path of the needle thread Y changes, and the degree of tightness of the stitch can be adjusted.
【００２３】以上の知見を踏まえて、アクチュエータ７
を駆動するための、即ち、針棒糸案内６の糸通し穴６ａ
を上、下させるためのプログラムが組まれるが、そのプ
ログラムは、予めＲＯＭに書き込んでおかれる。また、
ＲＯＭに書き込まれているプログラム以外のプログラム
をユーザが設定する場合には、設定入力手段よりＲＡＭ
に書き込まれる。なお、各縫い目形成領域は針位置信号
を計数する方式又はタイマー設定による方式等により検
出され、実行される。Based on the above knowledge, the actuator 7
, Ie, a threading hole 6a of the needle bar thread guide 6.
A program for raising and lowering the program is prepared, and the program is written in the ROM in advance. Also,
When the user sets a program other than the program written in the ROM, the user inputs the RAM from the setting input means.
Is written to. Each stitch forming area is detected and executed by a method of counting needle position signals, a method of setting a timer, or the like.
【００２４】次に、プログラムのいくつかの例を示す。Next, some examples of the program will be described.
【００２５】デニム等の厚物の場合等に、図４（１）に
示す鳩目穴かがりの全縫い目１ａをしっかり（硬く）縫
うには、針棒糸案内６の糸通し穴６ａの位置を図１
（１）に示すように下げるよにする。逆に、薄物の場合
等には、針棒糸案内６の糸通し穴６ａの位置を図２
（３）に示すように上げ、全縫い目１ａをゆるめにし、
生地になじむようにする。In the case of a thick material such as denim, etc., in order to sew (stiffly) all the stitches 1a of the eyelet overlock shown in FIG. 4A, the position of the threading hole 6a of the needle bar thread guide 6 is shown. 1
Lower as shown in (1). Conversely, in the case of a thin object, the position of the threading hole 6a of the needle bar thread guide 6 is shown in FIG.
Raise as shown in (3), loosen all seams 1a,
Let it adapt to the dough.
【００２６】図４（２）に示す、鳩目穴かがり縫いの縫
い始め１ｂの領域と縫い終わり３ｂの領域の縫い目を、
針棒糸案内６の糸通し穴６ａの位置を図１（１）に示す
ように下げ、しっかりと締めることにより、縫製中及び
縫製後の縫い込み芯の抜けを防ぐことができる。この場
合、縫い始め１ｂ及び縫い終わり３ｂの領域以外の縫い
目２ｂの領域を縫うときには、針棒糸案内８の糸通し穴
６ａの位置は、図２（３）に示すように上げられる。As shown in FIG. 4 (2), the stitches in the area at the start 1b and the end 3b of the eyelet buttonhole sewing are
By lowering the position of the threading hole 6a of the needle bar thread guide 6 as shown in FIG. 1A and firmly tightening it, the sewing core can be prevented from coming off during and after sewing. In this case, when sewing the area of the stitch 2b other than the area of the sewing start 1b and the sewing end 3b, the position of the threading hole 6a of the needle bar thread guide 8 is raised as shown in FIG.
【００２７】図４（３）に示すように、鳩目穴かがりの
縫い目で最も耐久性の必要な鳩目部２ｃの領域の縫い目
を、針棒糸案内６の糸通し穴６ａの位置を図１（１）に
示すように下げて、しっかりと締めることにより、その
部分の糸のほつれをなくし、縫い込み芯を抜けにくくす
ることができる。この場合、平行部１ｃ、３ｃの領域の
縫い目を縫うときには、針棒糸案内６の糸通し穴６ａ位
置は、図２（３）に示すように上げられる。また、普通
に縫えば、平行部１ｃ、３ｃと鳩目部２ｃとで縫い目の
締まりが変わるので、平行部１ｃ、３ｃと鳩目部２ｃの
糸締まりを変化させ、縫い目を均一にすることもでき
る。As shown in FIG. 4 (3), the seam in the area of the eyelet portion 2c where the durability is the most required in the eyelet hole buttoning seam, and the position of the threading hole 6a of the needle bar thread guide 6 is shown in FIG. By lowering and firmly tightening as shown in 1), it is possible to eliminate fraying of the thread at that portion and make it difficult for the sewing core to come off. In this case, when sewing the stitches in the region of the parallel portions 1c and 3c, the position of the threading hole 6a of the needle bar thread guide 6 is raised as shown in FIG. Further, if the sewing is performed normally, the tightness of the seam changes between the parallel portions 1c and 3c and the eyelet portion 2c. Therefore, the thread tightness of the parallel portions 1c and 3c and the eyelet portion 2c can be changed, and the seam can be made uniform.
【００２８】図４（４）に示すものは、図４（３）に示
すものと、ほぼ同様であるが、針棒糸案内６の糸通し穴
６ａの位置を下げておく部分を、鳩目部中央部２ｄの領
域に限定した点で異なっている。4 (4) is almost the same as that shown in FIG. 4 (3), except that the position of the threading hole 6a of the needle bar thread guide 6 is lowered. The difference is that the area is limited to the area of the central portion 2d.
【００２９】図４（５）に示すように、鳩目穴かがりの
前半領域の縫い目１ｅを形成するとき（行き）と、後半
領域の縫い目２ｅを形成するとき（帰り）とでは糸道経
路が変わり、糸締まりが変わるので、前半縫製時と、後
半縫製時の針棒糸案内６の糸通し穴６ａの位置を変え
（前半に上げ、後半に下げる）、前半の縫い目１ｅと後
半の縫い目２ｅを見かけ上均一にすることもできる。As shown in FIG. 4 (5), the thread path changes between when forming the seam 1e in the first half area of the eyelet buttonhole (going) and when forming the seam 2e in the second half area (return). Since the thread tightening is changed, the position of the threading hole 6a of the needle bar thread guide 6 during the first half sewing and the second half sewing is changed (raised to the first half and lowered to the second half), and the first and second stitches 1e and 2e are changed. It can be apparently uniform.
【００３０】普通に縫製した鳩目穴かがりの縫い目を細
かく観察すれば、図４（６）に示すように、縫い始め部
１ｆ及び縫い終わり部５ｆと、平行部２ｆ、４ｆと、鳩
目部３ｆとでは縫い目の硬さが異なる。そこで、平行部
２ｆ、４ｆの領域を縫うときには、針棒糸案内６の糸通
し穴６ａの位置を、図２（３）に示す位置に上げてゆる
く締め、その他は、図２（１）に示す位置に下げてしっ
かりと締めることにより、縫い目は柔らかく、縫い込み
芯を抜け難くすることができる。When the stitches of the normally sewn eyelet buttonhole are closely observed, as shown in FIG. 4 (6), the sewing start portion 1f and the sewing end portion 5f, the parallel portions 2f, 4f, and the eyelet portion 3f Then the hardness of the seams is different. Therefore, when sewing the areas of the parallel portions 2f and 4f, the position of the threading hole 6a of the needle bar thread guide 6 is raised to the position shown in FIG. 2 (3) and loosely tightened. By lowering to the position shown and tightening firmly, the seam can be soft and hard to slip out of the seam.
【００３１】図５（１）に示すように、鳩目穴かがりの
かがり幅を小幅なものに（黒丸表示から白丸表示へ）変
更するときには、１針当たりに必要な針糸供給量が少な
くなるが、針棒や天秤による針糸の繰り出し量は一定で
あるので、針糸供給量が必要量以上になってたるみ、目
飛び等の縫い不良につながる。そこで、かがり幅の変更
に合わせて、針棒糸案内６の糸通し穴６ａの位置を上
げ、下げし、針糸Ｙのたるみを取り、縫い不良を防止す
るようにする。As shown in FIG. 5 (1), when the oversized width of the eyelet overhole is changed to a small one (from black circle display to white circle display), the necessary amount of needle thread supplied per stitch becomes small. Since the feeding amount of the needle thread by the needle bar or the balance is constant, the supply amount of the needle thread becomes more than a necessary amount, which leads to slack, stitch skipping and other sewing failures. Therefore, the position of the threading hole 6a of the needle bar thread guide 6 is raised and lowered in accordance with the change of the overlock width, the slack of the needle thread Y is removed, and the sewing failure is prevented.
【００３２】図５（２）に示すように、鳩目穴かがりの
送りピッチを小さなものに（黒丸表示から白丸表示へ）
変更するときにも、１針当たりに必要な針糸供給量が少
なくなるが、針棒や天秤による針糸の繰り出し量は一定
であるので、針糸供給量が必要量以上になってたるみ、
目飛び等の縫い不良につながる。そこで、かがり幅の変
更に合わせて、針棒糸案内６の糸通し穴６ａの位置を上
げ、下げし、針糸Ｙのたるみを取り、縫い不良を防止す
るようにする。また、鳩目穴かがりのかがり幅やピッチ
の変更に応じた針棒糸案内６の制御に加え、鳩目穴かが
りの所定領域で針棒糸案内６を駆動させるように制御す
ることもできる。As shown in FIG. 5 (2), the feed pitch of the eyelet overcast is reduced (from black circle display to white circle display).
Also when changing, the required amount of needle thread supplied per needle is reduced, but the amount of needle thread fed out by the needle bar or the balance is constant, so the supplied amount of needle thread becomes more than necessary,
It leads to poor sewing such as skipped stitches. Therefore, the position of the threading hole 6a of the needle bar thread guide 6 is raised and lowered in accordance with the change of the overlock width, the slack of the needle thread Y is removed, and the sewing failure is prevented. Further, in addition to the control of the needle bar thread guide 6 in accordance with the change of the overcast width and the pitch of the eyelet, it is also possible to control the needle bar thread guide 6 to be driven in a predetermined region of the eyelet overcast.
【００３３】以上、針棒糸案内６の糸通し穴６ａの位置
を上げ、下げし、針糸張力を調整する例を説明したが、
その針棒糸案内６に代えて、図３に示すように、縫製中
に上糸張力を変化させ得る糸調子１１を設けても同様の
効果を期待することができる。この場合、例えば、ソレ
ノイドに掛ける電圧を縫製中に変化させることにより、
糸調子１１を構成する皿の挟持力を調整し、鳩目穴かが
りの所定の位置で上糸張力を変え、縫い目の硬さ、糸締
まりを自由に制御するようにする。その制御も図１
（２）に示すものと同様のコントローラ（制御手段）に
より行われる。なお、糸調子（可変糸調子）１１と糸調
子５は、図３に示すように、糸案内４と、天秤３との間
の糸経路上に設けられているが、これに代え、天秤３と
針棒１上部に至る糸経路や、針糸供給源（糸巻）と糸案
内４との間に設けてもよい。In the above, the example in which the position of the threading hole 6a of the needle bar thread guide 6 is raised and lowered to adjust the needle thread tension has been described.
A similar effect can be expected by providing a thread tensioner 11 capable of changing the upper thread tension during sewing, as shown in FIG. 3, instead of the needle bar thread guide 6. In this case, for example, by changing the voltage applied to the solenoid during sewing,
The pinching force of the plate constituting the thread tension 11 is adjusted, the needle thread tension is changed at a predetermined position of the eyelet buttonhole, and the hardness of the seam and the tightness of the thread are freely controlled. Fig. 1
This is performed by a controller (control means) similar to that shown in (2). The thread tension (variable thread tension) 11 and the thread tension 5 are provided on the thread path between the thread guide 4 and the balance 3 as shown in FIG. And a yarn path leading to the upper portion of the needle bar 1, or between a needle yarn supply source (thread winding) and the yarn guide 4.
【００３４】[0034]
【発明の効果】以上説明したように本発明の鳩目穴かが
りミシンの針糸案内装置は、縫い目の糸締まりや縫い目
の硬さ等の調整範囲を従来より広くすることが可能とな
り、縫製中にも針糸繰り出し量を変更できるようになっ
た。従って、鳩目穴かがり各部の縫い目を均一、且つ、
風合いの良好なものにしたり、所定部の縫い目を強固に
したり、縫い込み芯の抜けを確実に防ぐことができるよ
うになった。As described above, the needle thread guide device of the eyelet buttonhole sewing machine according to the present invention makes it possible to increase the adjustment range such as the thread tightness of the seam and the hardness of the seam. Can also change the needle thread payout amount. Therefore, the stitches of each part of the eyelet buttonhole are uniform, and
The texture can be improved, the seam at a predetermined portion can be strengthened, and the sewn-in core can be reliably prevented from coming off.
【図１】本発明の鳩目穴かがりミシンの針糸案内装置に
関する図であり、（１）は針糸案内装置の取り付け状態
を示す正面図、（２）は同制御部のブロック線図、
（３）は針棒糸案内の変形例を示す正面図である。FIG. 1 is a diagram relating to a needle thread guide device of an eyelet buttonhole sewing machine of the present invention, (1) is a front view showing an attached state of the needle thread guide device, (2) is a block diagram of the control unit,
(3) is a front view which shows the modification of a needle bar thread guide.
【図２】それぞれ、針棒糸案内の糸通し穴の位置と針糸
張力との関係を説明する正面図である。FIG. 2 is a front view illustrating the relationship between the position of a threading hole of a needle bar thread guide and the needle thread tension.
【図３】本発明の他の針糸案内装置を取り付けた鳩目穴
かがりミシンの斜視図である。FIG. 3 is a perspective view of an eyelet buttonhole sewing machine to which another needle thread guide device of the present invention is attached.
【図４】針棒糸案内の種々の駆動プログラムを説明する
ための、鳩目穴かがり縫い目の平面図である。FIG. 4 is a plan view of an eyelet buttonhole stitch for explaining various drive programs of a needle bar thread guide.
【図５】（１）は鳩目穴かがりのかがり幅と針糸張力と
の関係を説明する図であり、（２）は同送りピッチと針
糸張力との関係を説明する図である。FIG. 5 (1) is a diagram for explaining the relationship between the eyelet hole overhang width and the needle thread tension, and FIG. 5 (2) is a diagram for explaining the relationship between the feed pitch and the needle thread tension.
【図６】従来の針糸案内部を備えた鳩目穴かがりミシン
の斜視図である。FIG. 6 is a perspective view of a conventional eyelet buttonhole sewing machine having a needle thread guide.
１ 針棒 ３ 天秤 ６ 針棒糸案内 ６ａ 糸通し穴 ７ アクチュエータ １１ 糸調子 Ｙ 針糸 1 Needle bar 3 Balance 6 Needle bar thread guide 6a Threading hole 7 Actuator 11 Thread tension Y Needle thread
フロントページの続き (72)発明者 野口 宏 東京都調布市国領町８丁目２番地の１ ジ ューキ株式会社内 Ｆターム(参考） 3B150 AA05 AA24 BA06 CB03 CD03 CE27 FG06 GF02 GF03 JA11 JA13 LA06 LA07 LB03 MA02 MA07 NA76 NB00 NB15 NC11 NC18 QA01 Continuation of the front page (72) Inventor Hiroshi Noguchi 1-2-2, Kokuryo-cho, Chofu-shi, Tokyo F-term in Juke Corporation (reference) 3B150 AA05 AA24 BA06 CB03 CD03 CE27 FG06 GF02 GF03 JA11 JA13 LA06 LA07 LB03 MA02 MA07 NA76 NB00 NB15 NC11 NC18 QA01
Claims (7)
糸が上部から内部へ通される針棒との間に設けられ、そ
の間の針糸に係合する針棒糸案内と、針棒糸案内の位置
を変えることにより針糸経路を変えるアクチュエータ
と、アクチュエータを鳩目穴かがりの所定領域で駆動さ
せる制御手段とよりなる鳩目穴かがりミシンの針糸案内
装置。1. A needle bar thread guide which is provided between a balance for pulling out and tightening a needle thread and a needle bar through which the needle thread is passed from above and which engages with the needle thread therebetween, and a needle bar. A needle thread guide device for an eyelet buttonhole sewing machine, comprising: an actuator that changes a needle thread path by changing a position of a thread guide; and control means for driving the actuator in a predetermined area of the eyelet buttonhole tool.
れる針棒との間の糸経路の所定位置で針糸を挟持する糸
調子と、糸調子の糸挟持力を鳩目穴かがりの所定領域で
変更する制御手段とよりなる鳩目穴かがりミシンの針糸
案内装置。2. A thread tension for clamping a needle thread at a predetermined position in a thread path between a needle thread supply source and a needle bar through which the thread passes from above, and the eye-catching force of the thread tension. A needle thread guide device for an eyelet buttonhole sewing machine comprising a control means for changing a buttonhole in a predetermined area.
部で異なる針糸張力となるように信号を発する請求項１
又は請求項２に記載の鳩目穴かがりミシンの針糸案内装
置。3. A control means for issuing a signal so that the needle thread tension is different between the linear portion of the eyelet buttonhole and the eyelet portion.
Or the needle thread guide device of the eyelet hole buttonhole sewing machine according to claim 2.
死点位置にある針棒上端と天秤先端とを結ぶ線上に針棒
糸案内の糸係合部が位置し、鳩目部で、上死点位置にあ
る針棒上端と天秤先端とを結ぶ線より下方に針棒糸案内
の糸係合部が位置するように信号を発する請求項３に記
載の鳩目穴かがりミシンの針糸案内装置。4. The control means is arranged such that the thread engaging portion of the needle bar thread guide is located on a line connecting the upper end of the needle bar at the top dead center position and the tip of the balance with a straight line portion of the eyelet hole. 4. The needle thread of an eyelet buttonhole sewing machine according to claim 3, wherein a signal is issued so that the thread engaging portion of the needle thread guide is located below a line connecting the upper end of the needle bar at the top dead center position and the tip of the balance. Guide device.
縫い終わり部、鳩目部の少なくとも１カ所である請求項
１又は請求項２に記載の鳩目穴かがりミシンの針糸案内
装置。5. The sewing machine according to claim 5, wherein the predetermined region is a sewing start portion of an eyelet buttonhole.
The needle thread guide device for an eyelet buttonhole sewing machine according to claim 1 or 2, wherein the needle thread guide device is at least one of a sewing end portion and an eyelet portion.
糸が上部から内部へ通される針棒との間に設けられ、そ
の間の針糸に係合する針棒糸案内と、針棒糸案内の位置
を変えることにより針糸経路を変えるアクチュエータ
と、鳩目穴かがりのかがり幅又は縫いピッチに応じてア
クチュエータを駆動させる制御手段とよりなる鳩目穴か
がりミシンの針糸案内装置。6. A needle bar thread guide which is provided between a balance for pulling out and tightening the needle thread and a needle bar through which the needle thread is passed from above to engage the needle thread therebetween, and a needle bar. A needle thread guide device for an eyelet stitching machine comprising an actuator for changing a needle thread path by changing a position of a thread guide, and control means for driving the actuator in accordance with an eyelet stitching width or a sewing pitch.
される請求項６に記載の鳩目穴かがりミシンの針糸案内
装置。7. The needle thread guide device for an eyelet buttonhole sewing machine according to claim 6, wherein the control means is driven in a predetermined area of the eyelet buttonhole buttonhole sewing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24696599A JP2001070681A (en) | 1999-09-01 | 1999-09-01 | Needle thread eyelet device for hole darning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24696599A JP2001070681A (en) | 1999-09-01 | 1999-09-01 | Needle thread eyelet device for hole darning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001070681A true JP2001070681A (en) | 2001-03-21 |
Family
ID=17156368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24696599A Pending JP2001070681A (en) | 1999-09-01 | 1999-09-01 | Needle thread eyelet device for hole darning machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001070681A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000271367A (en) * | 1999-03-19 | 2000-10-03 | Duerkopp Adler Ag | Button hole sewing machine |
| JP2008119162A (en) * | 2006-11-10 | 2008-05-29 | Juki Corp | Eyelet buttonhole sewing machine |
-
1999
- 1999-09-01 JP JP24696599A patent/JP2001070681A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000271367A (en) * | 1999-03-19 | 2000-10-03 | Duerkopp Adler Ag | Button hole sewing machine |
| JP2008119162A (en) * | 2006-11-10 | 2008-05-29 | Juki Corp | Eyelet buttonhole sewing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5339110B2 (en) | Sewing thread supply device | |
| JP2700557B2 (en) | Automatic thread tension sewing machine | |
| JP2001070681A (en) | Needle thread eyelet device for hole darning machine | |
| JPH01121091A (en) | Sewing machine for correcting tightness of thread depending on position of needle | |
| US4934291A (en) | Needle thread supply device in two needle sewing machine with one needle pause function | |
| JPH0295398A (en) | Securing device for sewing thread quantity of upper thread for sewing machine | |
| JPH1043455A (en) | Sewing thread controller for chain sewing machine | |
| US2725840A (en) | Thread releases for sewing machines | |
| JPH0510796Y2 (en) | ||
| JPS6029514B2 (en) | Needle thread tensioning device for buttonhole sewing machine | |
| JP4903316B2 (en) | sewing machine | |
| JPH0941258A (en) | Embroidery machine | |
| US11668034B2 (en) | Sewing machine | |
| JP2002177679A (en) | Sewing machine for root winding button sewing and apparatus for stitch balancing thread tension of sewing machine | |
| JP4392572B2 (en) | Hole sewing machine | |
| JP2571036Y2 (en) | Multi-needle interlock stitch machine | |
| JP2910121B2 (en) | Sewing thread feeding device | |
| JPH075576U (en) | Tensioning device for boring cycle sewing machine | |
| JPH1033872A (en) | Sewing machine | |
| JP4392639B2 (en) | Hole sewing machine | |
| JP2001137575A (en) | Thread guide device for spreader thread take-up lever | |
| JPH07275545A (en) | Needle thread tension control method and device for sewing machine | |
| JPH0333324Y2 (en) | ||
| JP3817039B2 (en) | Embroidery sewing machine | |
| JP4240181B2 (en) | Drilling stitch forming method, drilling sewing machine and drilling stitch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20040512 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060825 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080723 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081029 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20081126 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20090323 |