JP2911389B2 - Sewing machine thread feeder - Google Patents
Sewing machine thread feederInfo
- Publication number
- JP2911389B2 JP2911389B2 JP17248395A JP17248395A JP2911389B2 JP 2911389 B2 JP2911389 B2 JP 2911389B2 JP 17248395 A JP17248395 A JP 17248395A JP 17248395 A JP17248395 A JP 17248395A JP 2911389 B2 JP2911389 B2 JP 2911389B2
- Authority
- JP
- Japan
- Prior art keywords
- thread
- gripper
- needle
- looper
- stitch
- 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.)
- Expired - Fee Related
Links
- 238000009958 sewing Methods 0.000 title claims description 225
- 239000004744 fabric Substances 0.000 claims description 111
- 238000011144 upstream manufacturing Methods 0.000 claims description 107
- 238000005096 rolling process Methods 0.000 claims description 29
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 230000001360 synchronised effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 238000003079 width control Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000287107 Passer Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明はミシンの糸供給装
置に係り、特に、糸調子作業を不要にして、布に縫目形
成を行なう縫目形成装置に縫糸を供給できるミシンの糸
供給装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thread supply device for a sewing machine, and more particularly to a thread supply device for a sewing machine that can supply a sewing thread to a stitch forming device that forms a stitch on a cloth without requiring a thread tension operation. .
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来か
ら、本縫ミシンやオーバーロックミシンにおいては糸調
子バネで所定の押圧力に挟持される一対の糸調子皿から
なる糸調子器を備え、糸調子皿の間に縫糸を挟持し、縫
針やルーパによる縫目形成時に縫糸に生じる張力を所定
の値に糸調子器で調整し縫糸の種類や太さが変っても縫
目が綺麗に仕上るようにしていた。この場合、糸調子器
と針糸天秤やルーパ糸天秤との共働で引き込み、糸締め
をして縫糸の繰出しが行われる。これらのミシンでは、
糸調子器を調整するための極めて煩雑なマニュアル操作
入力が必要になる。特に、オーバーロックミシンにおい
ては縫糸数が多くなるため、縫糸間の糸調子バランスを
取ることが極めて面倒である。2. Description of the Related Art Conventionally, a lockstitch sewing machine or an overlock sewing machine is provided with a thread tensioner comprising a pair of thread tension discs which are held at a predetermined pressing force by a thread tension spring. A thread is clamped between thread tension plates, and the tension generated in the thread at the time of forming a stitch with a sewing needle or a looper is adjusted to a predetermined value by a thread tensioner, so that the stitch is beautifully finished even if the type or thickness of the thread changes. Was like that. In this case, the thread tension device and the needle thread balance or the looper thread balance are pulled in by cooperation with each other, the thread is tightened, and the sewing thread is paid out. With these sewing machines,
Extremely complicated manual operation input for adjusting the thread tensioner is required. In particular, in an overlock sewing machine, since the number of sewing threads increases, it is extremely troublesome to balance the thread tension between the sewing threads.
【０００３】さらに、一対のエンコーダ付ローラとそれ
ぞれに電磁式糸把持器を設け、エンコーダで糸の長さを
測定し、各電磁式糸把持器を開閉して縫目形成に必要な
縫糸量だけ供給するコンピュータミシンが知られている
（特開平２−４５０８８号公報）。このコンピュータミ
シンでは機構が複雑となり、縫糸の供給量は縫糸の種
類、縫糸の太さ、布厚、縫幅などのデータを予めコンピ
ュータに入力するマニュアル操作が必要になり、このマ
ニュアル入力と縫目の仕上りの対応がとりづらいという
難点がある。また、このコンピュータミシンでは糸切れ
が発生したときにもローラが強制的に縫糸を供給するの
で、無駄な縫糸を繰出してしまうという結果をもたら
す。Further, an electromagnetic thread gripper is provided for each of a pair of rollers with an encoder, and the length of a thread is measured by an encoder. Each of the electromagnetic thread grippers is opened and closed, and only a sewing thread amount necessary for forming a stitch is formed. A computer sewing machine to be supplied is known (JP-A-2-45088). With this computer sewing machine, the mechanism is complicated, and the supply amount of the sewing thread requires manual operation of inputting data such as the type of the sewing thread, the thickness of the sewing thread, the cloth thickness, and the sewing width to a computer in advance. There is a difficulty that it is difficult to respond to the finish. Further, in this computer sewing machine, since the roller is forcibly supplied with the sewing thread even when a thread break occurs, there is a result that an unnecessary sewing thread is unwound.
【０００４】本発明は、このような従来の問題点を解決
するためになされたもので、糸調子作業を不要にして、
布に縫目形成を行なう縫目形成装置に縫糸を供給できる
ミシンの糸供給装置を提供することを目的とする。The present invention has been made to solve such a conventional problem, and eliminates the need for a thread tensioning operation.
An object of the present invention is to provide a thread supply device of a sewing machine that can supply a sewing thread to a stitch forming device that forms a stitch on a cloth.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するため
本発明のミシンの糸供給装置は、布に縫目形成を行なう
縫目形成装置に縫糸を供給するミシンの糸供給装置であ
って、糸巻から給糸される縫糸を把持し、縫目形成装置
により縫目形成時に閉成され、布の布送り時に開成され
圧縮バネが介在された加圧把持皿、受け把持皿から成る
上流側把持器と、上流側把持器から導かれた縫糸を把持
し、縫目形成時に開成されて縫糸が縫目形成装置により
引出され、布の布送り時に閉成され圧縮バネが介在され
た加圧把持皿、受け把持皿から成る下流側把持器と、縫
目形成装置と同期して駆動され、布の布送り時に開成さ
れた上流側把持器および閉成された下流側把持器間に延
びる縫糸を縫目形成装置の１縫目に必要な縫糸量として
蓄糸し、縫目形成時に放糸する手繰部材とを備え、手繰
部材を上流側把持器および下流側把持器間に給糸方向に
隔置して配設された一対の糸案内の間に配置したもので
ある。To achieve this object, a sewing machine thread supply device according to the present invention is a sewing machine thread supply device for supplying a sewing thread to a stitch forming device for forming a stitch on a cloth, An upstream grip comprising a pressure gripping plate and a receiving gripping plate, which grips a sewing thread supplied from a bobbin and is closed at the time of forming a stitch by a stitch forming device, opened at the time of cloth feeding, and opened with a compression spring interposed. And a sewing thread guided from the upstream gripper, the sewing thread is opened at the time of forming a seam, the sewing thread is pulled out by the seam forming device, the sewing thread is closed at the time of feeding the cloth, and the pressure grip is interposed with the compression spring. A downstream gripper comprising a plate and a receiving gripper; and a sewing thread driven between the upstream gripper and the closed downstream gripper which are driven in synchronization with the stitch forming device and which are opened when the cloth is fed. Storing the thread as the amount of thread required for the first stitch of the stitch forming device and forming the stitch To a tag member Hoito, those disposed between the pair of thread guides arranged in spaced yarn feeding direction between the tag member upstream gripper and downstream gripper.
【０００６】布に縫目形成を行なう縫幅調節部の操作に
応じ変化する１縫目に必要な縫糸量に対応して手繰部材
を連動させて駆動する縫幅調節連動手段が手繰部材に連
結されている。布に縫目形成を行なう縫目送り調節部の
操作に応じ変化する１縫目に必要な縫糸量に対応して手
繰部材を連動させて駆動する縫目送り調節連動手段が手
繰部材に連結されている。[0006] A sewing width adjustment interlocking means for interlocking and driving the hand-rolling member in accordance with the sewing thread amount required for the first stitch which changes in accordance with the operation of the stitch-width adjusting unit for forming a stitch on the cloth is connected to the hand-rolling member. Have been. Stitch feed adjustment interlocking means for driving the hand feeding member in conjunction with the sewing thread amount necessary for the first stitch which changes according to the operation of the stitch feed adjusting section for forming a stitch on the cloth is connected to the hand feeding member. ing.
【０００７】布に縫目形成を行なう布押えによる布厚に
応じ変化する１縫目に必要な縫糸量に対応して手繰部材
を連動させて駆動する布厚調節連動手段が手繰部材に連
結されている。布に縫目形成を行なう縫幅調節部の操作
に応じ変化する１縫目に必要な縫糸量に対応して手繰部
材を連動させて駆動する縫幅調節連動手段が一対の糸案
内に連結されている。[0007] A cloth thickness adjusting and interlocking means for interlocking and driving the hand-moving member in accordance with the sewing thread amount required for the first stitch which changes according to the cloth thickness by the cloth presser for forming a stitch on the cloth is connected to the hand-handling member. ing. A sewing width adjustment interlocking means for interlocking and driving a hand-rolling member in accordance with an amount of sewing thread required for the first stitch, which is changed according to an operation of a sewing width adjusting unit for forming a stitch on the cloth, is connected to the pair of thread guides. ing.
【０００８】布に縫目形成を行なう縫目送り調節部の操
作に応じ変化する１縫目に必要な縫糸量に対応して手繰
部材を連動させて駆動する縫目送り調節連動手段がを一
対の糸案内に連結されている。布に縫目形成を行なう布
押えによる布厚に応じ変化する１縫目に必要な縫糸量に
対応して手繰部材を連動させて駆動する布厚調節連動手
段が一対の糸案内に連結されている。[0008] A pair of stitch feed adjustment interlocking means for driving the hand feeding member in association with the amount of thread required for the first stitch, which changes according to the operation of the stitch feed adjustment unit for forming stitches on the cloth, comprises a pair. Is connected to the thread guide. A cloth thickness adjusting and interlocking means for driving the hand reel member in conjunction with a sewing thread amount required for the first stitch, which varies according to the cloth thickness by the cloth presser for forming a stitch on the cloth, is connected to the pair of thread guides. I have.
【０００９】また、本発明のオーバーロックミシンの糸
供給装置は、布に縫目形成を行なう縫目形成装置の針、
上ルーパ、下ルーパに針糸、上ルーパ糸、下ルーパ糸を
供給するオーバーロックミシンの糸供給装置であって、
糸巻からそれぞれ給糸される針糸、上ルーパ糸、下ルー
パ糸を把持し、縫目形成装置により縫目形成時に閉成さ
れ、布の布送り時に開成され圧縮バネが介在された加圧
把持皿、受け把持皿から成る針糸上流側把持器、上ルー
パ糸上流側把持器、下ルーパ糸上流側把持器と、針糸上
流側把持器、上ルーパ糸上流側把持器、下ルーパ糸上流
側把持器からそれぞれ導かれた針糸、上ルーパ糸、下ル
ーパ糸を把持し、縫目形成時に開成されて針糸、上ルー
パ糸、下ルーパ糸が縫目形成装置により引出され、布の
布送り時に閉成され圧縮バネが介在された加圧把持皿、
受け把持皿から成る針糸下流側把持器、上ルーパ糸下流
側把持器、下ルーパ糸下流側把持器と、針、上ルーパ、
下ルーパと同期してそれぞれ駆動され、布の布送り時に
開成された針糸上流側把持器、上ルーパ糸上流側把持
器、下ルーパ糸上流側把持器および閉成された針糸下流
側把持器、上ルーパ糸下流側把持器、下ルーパ糸下流側
把持器間にそれぞれ延びる針糸、上ルーパ糸、下ルーパ
糸を縫目形成装置の１縫目にそれぞれ必要な縫糸量とし
て蓄糸し、縫目形成時に放糸する針糸手繰部材、上ルー
パ糸手繰部材、下ルーパ糸手繰部材とを備え、針糸手繰
部材、上ルーパ糸手繰部材、下ルーパ糸手繰部材を針糸
上流側把持器、上ルーパ糸上流側把持器、下ルーパ糸上
流側把持器および針糸下流側把持器、上ルーパ糸下流側
把持器、下ルーパ糸下流側把持器間に給糸方向に隔置し
て配設された一対の糸案内の間にぞれぞれ配置したもの
である。Further, according to the present invention, there is provided a thread supply device for an overlock sewing machine, comprising: a stitch forming device for forming a stitch on a cloth;
A thread supply device for an overlock sewing machine that supplies a needle thread, an upper looper thread, and a lower looper thread to an upper looper and a lower looper,
A needle grip, an upper looper thread and a lower looper thread respectively supplied from the bobbin are gripped, closed by a stitch forming device at the time of forming a stitch, opened at the time of feeding the cloth, and pressed and held by a compression spring. Needle thread upstream gripper, upper looper thread upstream gripper, lower looper thread upstream gripper, and needle thread upstream gripper, upper looper thread upstream gripper, lower looper thread upstream comprising a plate and a receiving gripper The needle thread, upper looper thread, and lower looper thread respectively guided from the side gripper are gripped, opened at the time of forming a stitch, and the needle thread, upper looper thread, and lower looper thread are pulled out by the stitch forming device, and the cloth A pressure gripping pan that is closed at the time of cloth feeding and has a compression spring interposed,
A needle thread downstream gripper comprising a receiving gripping plate, an upper looper thread downstream gripper, a lower looper thread downstream gripper, a needle, an upper looper,
The needle thread upstream gripper, the upper looper thread upstream gripper, the lower looper thread upstream gripper, and the closed needle thread downstream grip that are respectively driven in synchronization with the lower looper and opened when the cloth is fed. The needle thread, the upper looper thread, and the lower looper thread extending between the container, the upper looper downstream gripper, and the lower looper downstream gripper are stored as the required sewing thread amounts for the first stitch of the seam forming device. A needle thread reeling member for releasing a stitch, an upper looper thread reeling member, and a lower looper thread reeling member. The needle thread reeling member, the upper looper thread reeling member, and the lower looper thread reeling member are gripped on the needle thread upstream side. The upper looper yarn upstream gripper, the lower looper yarn upstream gripper and the needle yarn downstream gripper, the upper looper yarn downstream gripper, and the lower looper yarn downstream gripper are separated in the yarn feeding direction. Each is arranged between a pair of thread guides arranged.
【００１０】また、本発明のオーバーロックミシンの糸
供給装置は、布に縫目形成を行なう縫目形成装置の針、
上ルーパ、下ルーパに針糸、上ルーパ糸、下ルーパ糸を
供給するオーバーロックミシンの糸供給装置であって、
糸巻からそれぞれ給糸される針糸、上ルーパ糸、下ルー
パ糸を把持し、縫目形成装置により縫目形成時に閉成さ
れ、布の布送り時に開成され圧縮バネが介在された加圧
把持皿、受け把持皿から成る針糸上流側把持器、上ルー
パ糸上流側把持器、下ルーパ糸上流側把持器と、針糸上
流側把持器、上ルーパ糸上流側把持器、下ルーパ糸上流
側把持器からそれぞれ導かれた針糸、上ルーパ糸、下ル
ーパ糸を把持し、縫目形成時に開成されて針糸、上ルー
パ糸、下ルーパ糸が縫目形成装置により引出され、布の
布送り時に閉成され圧縮バネが介在された加圧把持皿、
受け把持皿から成る針糸下流側把持器、上ルーパ糸下流
側把持器、下ルーパ糸下流側把持器と、針、上ルーパ、
下ルーパと同期してそれぞれ駆動され、布の布送り時に
開成された針糸上流側把持器、上ルーパ糸上流側把持
器、下ルーパ糸上流側把持器および閉成された針糸下流
側把持器、上ルーパ糸下流側把持器、下ルーパ糸下流側
把持器間にそれぞれ延びる針糸、上ルーパ糸、下ルーパ
糸を縫目形成装置の１縫目にそれぞれ必要な縫糸量とし
て蓄糸し、縫目形成時に放糸する針糸手繰部材、上ルー
パ糸手繰部材、下ルーパ糸手繰部材とを備え、針糸手繰
部材、上ルーパ糸手繰部材、下ルーパ糸手繰部材を針糸
上流側把持器、上ルーパ糸上流側把持器、下ルーパ糸上
流側把持器および針糸下流側把持器、上ルーパ糸下流側
把持器、下ルーパ糸下流側把持器間に給糸方向に隔置し
て配設された一対の糸案内の間にぞれぞれ配置し、普通
ロック縫時には針糸手繰部材を針に同期して駆動し、上
ルーパ糸手繰部材および下ルーパ糸手繰部材を上ルーパ
および下ルーパの何れか一方に同期して駆動し、巻ロッ
ク縫時には針糸手繰部材および下ルーパ糸手繰部材を針
に同期して駆動し、上ルーパ糸手繰部材を上ルーパに同
期して駆動する切替機構を備えたものである。[0010] A thread supply device for an overlock sewing machine according to the present invention is a needle for a stitch forming device for forming a stitch on a cloth.
A thread supply device for an overlock sewing machine that supplies a needle thread, an upper looper thread, and a lower looper thread to an upper looper and a lower looper,
A needle grip, an upper looper thread and a lower looper thread respectively supplied from the bobbin are gripped, closed by a stitch forming device at the time of forming a stitch, opened at the time of feeding the cloth, and pressed and held by a compression spring. Needle thread upstream gripper, upper looper thread upstream gripper, lower looper thread upstream gripper, and needle thread upstream gripper, upper looper thread upstream gripper, lower looper thread upstream comprising a plate and a receiving gripper The needle thread, upper looper thread and lower looper thread respectively guided from the side gripper are gripped, opened at the time of forming the stitch, and the needle thread, upper looper thread and lower looper thread are pulled out by the stitch forming device, and the cloth A pressure gripping pan that is closed at the time of cloth feeding and has a compression spring interposed,
A needle thread downstream gripper comprising a receiving gripping plate, an upper looper thread downstream gripper, a lower looper thread downstream gripper, a needle, an upper looper,
The needle thread upstream gripper, the upper looper thread upstream gripper, the lower looper thread upstream gripper, and the closed needle thread downstream grip that are respectively driven in synchronization with the lower looper and opened when the cloth is fed. The needle thread, the upper looper thread, and the lower looper thread extending between the container, the upper looper downstream gripper, and the lower looper downstream gripper are stored as the required sewing thread amounts for the first stitch of the seam forming device. A needle thread reeling member for releasing a stitch, an upper looper thread reeling member, and a lower looper thread reeling member. The needle thread reeling member, the upper looper thread reeling member, and the lower looper thread reeling member are gripped on the needle thread upstream side. The upper looper yarn upstream gripper, the lower looper yarn upstream gripper and the needle yarn downstream gripper, the upper looper yarn downstream gripper, and the lower looper yarn downstream gripper are separated in the yarn feeding direction. Each thread guide is arranged between a pair of thread guides. The reeling member is driven in synchronization with the needle, and the upper looper thread reeling member and the lower looper thread reeling member are driven in synchronization with either the upper looper or the lower looper. A switching mechanism is provided for driving the thread reeling member in synchronization with the needle and driving the upper looper thread reeling member in synchronization with the upper looper.
【００１１】このようなミシンの糸供給装置において、
布の布送り時には、上流側把持器が開成され、下流側把
持器が閉成されるので、手繰部材は上流側把持器および
下流側把持器間に延びる糸巻から給糸された縫糸を縫目
形成装置の１縫目に必要な縫糸量として蓄糸することが
できる。縫目形成時には、上流側把持器が閉成され、下
流側把持器が開成されるので、布の布送り時に蓄糸され
た縫糸を放糸することができる。In such a sewing machine thread supply device,
When the cloth is fed, the upstream gripper is opened and the downstream gripper is closed, so that the hand reeling member stitches the thread supplied from the bobbin extending between the upstream gripper and the downstream gripper. Threads can be stored as a necessary thread amount for the first stitch of the forming apparatus. At the time of forming the stitch, the upstream gripper is closed and the downstream gripper is opened, so that the sewing thread accumulated when the cloth is fed can be released.
【００１２】また、手繰部材を縫幅調節部に連動させる
ことができる縫幅調節連動手段を備えることにより、縫
幅調節部の操作に応じ変化する１縫目に必要な縫糸量に
対応させることができる。また、手繰部材を縫目送り調
節部に連動させることができる縫目送り調節連動手段を
備えることにより、縫目送り調節部の操作に応じ変化す
る１縫目に必要な縫糸量に対応させることができる。In addition, by providing a sewing width adjusting interlocking means capable of interlocking the hand-rolling member with the sewing width adjusting portion, it is possible to cope with a sewing thread amount required for the first stitch which changes according to the operation of the sewing width adjusting portion. Can be. In addition, by providing a stitch feed adjustment interlocking means capable of interlocking the hand feeding member with the stitch feed adjustment section, it is possible to correspond to the sewing thread amount required for the first stitch which changes according to the operation of the stitch feed adjustment section. Can be.
【００１３】さらに、手繰部材を布押えに連動させるこ
とができる布厚調節連動手段を備えることにより、布押
えによる布厚に応じ変化する１縫目に必要な縫糸量に対
応させることができる。普通ロック縫時には針糸手繰部
材を針に同期して駆動し、上ルーパ糸手繰部材および下
ルーパ糸手繰部材を上ルーパおよび下ルーパの何れか一
方に同期して駆動し、巻ロック縫時には針糸手繰部材お
よび下ルーパ糸手繰部材を針に同期して駆動し、上ルー
パ糸手繰部材を上ルーパに同期して駆動する切替機構を
備えたことにより、普通ロック縫時と巻ロック縫時とで
は蓄糸量を異ならせて普通ロック縫時と巻ロック縫時に
それぞれ対応することができる。Further, by providing a cloth thickness adjusting and interlocking means capable of interlocking the hand-rolling member with the presser foot, it is possible to cope with a sewing thread amount required for the first stitch which changes according to the cloth thickness by the presser foot. During normal lock sewing, the needle thread reeling member is driven in synchronization with the needle, and the upper looper thread reeling member and the lower looper thread reeling member are driven synchronously with either the upper looper or the lower looper. By providing a switching mechanism that drives the thread reeling member and the lower looper thread reeling member in synchronization with the needle, and drives the upper looper thread reeling member in synchronization with the upper looper, it is possible to perform normal lock sewing and winding lock sewing. In this case, the thread storage amount can be made different so as to cope with the ordinary lock sewing and the winding lock sewing, respectively.
【００１４】[0014]
【発明の実施の形態】以下、本発明のミシンの糸供給装
置の実施の形態を１本針３本糸オーバロックミシンに組
み込んだ状態で、図面を参照して説明する。１本針３本
糸オーバロックミシンは図１に示すように、機枠１に、
はずみ車２に固定された駆動軸３が軸承されている。は
ずみ車２はモータＭによってタイミングベルトＢを介し
て回転駆動される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a thread supply device for a sewing machine according to the present invention will be described below with reference to the drawings in a state where the thread supply apparatus is incorporated in a one-needle, three-thread overlock sewing machine. As shown in FIG. 1, the one-needle, three-thread overlock sewing machine is
A drive shaft 3 fixed to the flywheel 2 is supported. The flywheel 2 is rotationally driven by a motor M via a timing belt B.
【００１５】駆動軸３には針駆動偏心カム４（図２）が
設けられ、針駆動偏心カム４にはカムフォロアである針
駆動ロッド５（図２）の下端部が枢着され、針駆動ロッ
ド５の他端は機枠１に枢支された針駆動腕６に枢着され
ている。針駆動腕６のＵ字形の先端部６ａには連結ピン
１０により針留リンク７が枢支されている。針留リンク
７は機枠１に固定された案内棒１１に摺動可能に取り付
けられた針留８に連結ピン１２により枢着されている。
針留８には針９が固定されている。The drive shaft 3 is provided with a needle drive eccentric cam 4 (FIG. 2), and the lower end of a needle drive rod 5 (FIG. 2) which is a cam follower is pivotally mounted on the needle drive eccentric cam 4. The other end of 5 is pivotally attached to a needle drive arm 6 pivotally supported by the machine frame 1. A needle link 7 is pivotally supported by a connecting pin 10 at a U-shaped tip 6 a of the needle drive arm 6. The staple link 7 is pivotally connected to a staple 8 slidably mounted on a guide rod 11 fixed to the machine frame 1 by a connecting pin 12.
A needle 9 is fixed to the needle stay 8.
【００１６】また、駆動軸３には図２に示すように、下
ルーパ駆動傾斜カム１３、上ルーパ駆動傾斜カム１４が
固定され、下ルーパ駆動傾斜カム１３、上ルーパ駆動傾
斜カム１４にはそれぞれ下ルーパ駆動二又１５、上ルー
パ駆動二又１６に取り付けられたカムフォロアであるロ
ーラ１７、１８が係合されている。下ルーパ駆動二又１
５は下ルーパ駆動軸１９にピン２０により枢着されてい
る。下ルーパ駆動軸１９には下ルーパ２１が固定されて
いる。上ルーパ駆動二又１６は上ルーパ駆動軸２２にピ
ン２３により枢着されている。上ルーパ駆動軸２２には
上ルーパ駆動腕２４の一端が固定され、上ルーパ駆動腕
２４の他端には上ルーパ取付軸２５が枢着されている。
上ルーパ取付軸２５は機枠１に回動可能に装着されたピ
ボット２６に摺動可能に軸支されている。上ルーパ取付
軸２５の上端には上ルーパ２７が固定されている。As shown in FIG. 2, a lower looper drive tilt cam 13 and an upper looper drive tilt cam 14 are fixed to the drive shaft 3, and the lower looper drive tilt cam 13 and the upper looper drive tilt cam 14, respectively. Rollers 17 and 18 as cam followers attached to the lower looper drive fork 15 and the upper looper drive fork 16 are engaged. Lower looper drive fork 1
5 is pivotally connected to a lower looper drive shaft 19 by a pin 20. A lower looper 21 is fixed to the lower looper drive shaft 19. The upper looper drive fork 16 is pivotally connected to an upper looper drive shaft 22 by a pin 23. One end of an upper looper drive arm 24 is fixed to the upper looper drive shaft 22, and an upper looper mounting shaft 25 is pivotally connected to the other end of the upper looper drive arm 24.
The upper looper mounting shaft 25 is slidably supported by a pivot 26 rotatably mounted on the machine frame 1. An upper looper 27 is fixed to an upper end of the upper looper mounting shaft 25.
【００１７】さらに、駆動軸３には図３に示すように、
縫目送り調節部９００の部品である水平送りカム９１０
が固定されている。この縫目送り調節部９００は主送り
歯９０１および副送り歯９０２がそれぞれ布送り方向に
前後するように主送り歯取付軸９０３、副送り歯取付軸
９０４に固定され、主送り歯取付軸９０３、副送り歯取
付軸９０４は送り土台９０５の２つの支持部９０５ａ、
９０５ｂに摺動自在に支持されている。これら主送り歯
取付軸９０３および副送り歯取付軸９０４には主送り駆
動体９０６および副送り駆動体９０７が嵌装されてお
り、主送り歯取付軸９０３は主送り駆動体９０６に固定
され、副送り駆動体９０７に対しては摺動自在になって
いる。同様に副送り歯取付軸９０４は副送り駆動体９０
７に固定され、主送り駆動体９０６に対しては摺動自在
になっている。これら部材を支持する送り土台９０５
は、円筒状のボス部９０５ｃを有し、この円筒状のボス
部９０５ｃで土台軸９０８に支持されている。土台軸９
０８は機枠１に枢支される。Further, as shown in FIG.
Horizontal feed cam 910 which is a part of the seam feed adjusting section 900
Has been fixed. The stitch feed adjusting section 900 is fixed to the main feed dog mounting shaft 903 and the sub feed dog mounting shaft 904 such that the main feed dog 901 and the sub feed dog 902 move back and forth in the cloth feed direction, respectively. , The auxiliary feed dog mounting shaft 904 includes two support portions 905 a of the feed base 905,
905b slidably supported. A main feed driver 906 and a sub feed driver 907 are fitted to the main feed dog mounting shaft 903 and the sub feed dog mounting shaft 904, and the main feed dog mounting shaft 903 is fixed to the main feed driver 906, The sub-feed driver 907 is slidable. Similarly, the auxiliary feed dog mounting shaft 904 is
7 and is slidable with respect to the main feed driver 906. Feed base 905 supporting these members
Has a cylindrical boss 905c, and is supported on a base shaft 908 by the cylindrical boss 905c. Base axis 9
08 is pivotally supported by the machine frame 1.
【００１８】一方、駆動軸３に固定された水平送りカム
９１０には水平送りロッド９１１が嵌合されている。水
平送りロッド９１１の一端は主送り駆動腕９１２の一端
９１２ａに連結され、主送り駆動腕９１２の長方形の孔
９１２ｂには主送りスライドロッド９１３が２つの止め
板９１４Ａ、９１４Ｂで挟持されて摺動自在に支持され
ている。主送りスライドロッド９１３は送り土台９０５
の円筒状のボス部９０５ｃに近い部分に揺動軸９１５
（図１０）によって支持されている。主送り駆動腕９１
２の他端９１２ｃは、主送りリンク９１６を介して主送
り歯取付け軸９０３に固定された主送り駆動体９０６に
連結されている。On the other hand, a horizontal feed rod 911 is fitted to a horizontal feed cam 910 fixed to the drive shaft 3. One end of the horizontal feed rod 911 is connected to one end 912a of the main feed drive arm 912, and a main feed slide rod 913 is sandwiched between two stopper plates 914A and 914B in a rectangular hole 912b of the main feed drive arm 912 and slides. It is freely supported. The main feed slide rod 913 has a feed base 905.
The portion near the cylindrical boss portion 905c of FIG.
(FIG. 10). Main feed drive arm 91
The other end 912c of the second 2 is connected to a main feed driving body 906 fixed to a main feed dog mounting shaft 903 via a main feed link 916.
【００１９】また、送り土台９０５には主送り駆動腕９
１２が取付けられる側の反対側に副送りスライドロッド
９１８が揺動軸９１５によって支持されており、副送り
スライドロッド９１８は副送り駆動腕９１７の長方形の
孔９１７ａ内に２つの止め板（図示せず）で挟持されて
摺動自在に支持されている。副送り駆動腕９１７には、
主送りスライドロッド９１３および主送り駆動腕９１２
の揺動運動を伝達する連結ロッド９２０が連結されてい
る。連結ロッド９２０は、主送り駆動体９０６に連結さ
れている。一方、副送り駆動腕９１７の一端９１７ｂ
は、副送りリンク９２１を介して副送り歯取付け軸９０
４に固定された副送り駆動体９０７に連結されている。The feed base 905 has a main feed drive arm 9.
The sub-feed slide rod 918 is supported by a swing shaft 915 on the side opposite to the side on which the sub-feed 12 is mounted. The sub-feed slide rod 918 has two stopper plates (not shown) in a rectangular hole 917 a of the sub-feed drive arm 917. ) And slidably supported. The sub-feed drive arm 917 includes
Main feed slide rod 913 and main feed drive arm 912
Is connected to the connecting rod 920 for transmitting the swinging motion. The connecting rod 920 is connected to the main feed driver 906. On the other hand, one end 917b of the sub-feed drive arm 917
Is connected to the auxiliary feed dog mounting shaft 90 via the auxiliary feed link 921.
4 and is connected to a sub-feed drive body 907 fixed to the sub-drive unit 907.
【００２０】このように構成された縫目送り調節部９０
０には、主送りを調節するために送り目調節ダイヤル９
３０が設けられている。この送り目調節ダイヤル９３０
は送りダイヤル軸９３６を介して略半円板９３１に固定
され、略半円板９３１はリンク９３２および調節板９３
３を介して調節腕９３４に連結されている。調節腕９３
４は土台軸９０８に軸支され、腕部９３４ａは調節リン
ク９３５を介して主送り駆動腕９１２の一端９１２ａに
連結されている。なお、副送りを調節するために差動調
節レバー９４０（図１）が設けられている。この差動調
節レバー９４０はリンク、土台軸、副送り駆動腕等を介
して副送り駆動腕９１７の他端９１７ｃに連結されてい
る。The stitch feed adjusting section 90 thus configured
0 is a feed stitch adjusting dial 9 for adjusting the main feed.
30 are provided. This feed adjustment dial 930
Is fixed to a substantially semi-circular plate 931 via a feed dial shaft 936, and the substantially semi-circular plate 931 is connected to a link 932 and an adjusting plate 93.
3 is connected to the adjusting arm 934. Adjustable arm 93
4 is supported by a base shaft 908, and the arm 934 a is connected to one end 912 a of the main feed drive arm 912 via an adjustment link 935. Note that a differential adjustment lever 940 (FIG. 1) is provided to adjust the sub-feed. This differential adjustment lever 940 is connected to the other end 917c of the sub-feed drive arm 917 via a link, a base shaft, a sub-feed drive arm, or the like.
【００２１】このような縫目送り調節部９００の主送り
歯９０１および副送り歯９０２は、機枠１に摺動可能に
取着された押棒１０５１の先端に固定された布押え１０
５０によって針板９３７（図１）に押えられた布を、適
切な布送り量で移動させることができる。また、１本針
３本糸オーバロックミシンには、縫製直前に布の縁を切
りそろえるためのメス駆動機構３５で布切り幅（メス切
り幅）を変更するために、図４に示すような縫幅調節部
１０００を有している。縫幅調節部１０００は機枠１に
固定された軸１００１に縫幅調節ダイヤル１００２が螺
合され、この縫幅調節ダイヤル１００２によって下メス
土台１００３が軸支されている。なお、下メス土台１０
０３は機枠１に固定された回転止め軸１００４によっ
て、回転方向の動きを規制されている。The main feed dog 901 and the sub feed dog 902 of such a stitch feed adjusting section 900 are provided with a cloth presser 10 fixed to the tip of a push rod 1051 slidably attached to the machine frame 1.
The cloth pressed by the needle plate 937 (FIG. 1) by 50 can be moved by an appropriate cloth feed amount. The single-needle, three-thread overlock sewing machine is provided with a sewing machine as shown in FIG. 4 in order to change the cloth cutting width (scalpel cutting width) by a knife driving mechanism 35 for trimming the edges of the cloth immediately before sewing. It has a width adjusting unit 1000. In the sewing width adjustment unit 1000, a sewing width adjustment dial 1002 is screwed to a shaft 1001 fixed to the machine frame 1, and the lower knife base 1003 is pivotally supported by the sewing width adjustment dial 1002. In addition, the lower knife base 10
Reference numeral 03 denotes a rotation-restricted shaft 1004 fixed to the machine casing 1, and the movement in the rotation direction is restricted.
【００２２】このように構成されたオーバーロックミシ
ンの縫目形成装置１００の針９、上ルーパ２７、下ルー
パ２１により、布に縫目形成を行なう。この縫目形成装
置１００の針９、上ルーパ２７、下ルーパ２１に各縫糸
を供給するために糸供給装置が使用される。糸供給装置
は図５に示すように、糸巻５１、５２、５３からそれぞ
れ給糸される針糸３１、上ルーパ糸３２、下ルーパ糸３
３を把持し、縫目形成装置１００により縫目形成時に閉
成され、布の布送り時に開成される針糸上流側把持器４
０、上ルーパ糸上流側把持器５０、下ルーパ糸上流側把
持器６０（図６（ａ））を備えている。A stitch is formed on the cloth by the needle 9, the upper looper 27 and the lower looper 21 of the stitch forming apparatus 100 of the overlock sewing machine configured as described above. A thread supply device is used to supply each thread to the needle 9, the upper looper 27, and the lower looper 21 of the stitch forming apparatus 100. As shown in FIG. 5, the yarn supply device includes a needle thread 31, an upper looper thread 32, and a lower looper thread 3 which are respectively supplied from thread spools 51, 52, and 53.
The needle thread upstream side gripper 4 which is closed at the time of forming a stitch by the stitch forming apparatus 100 and is opened at the time of feeding the cloth.
0, an upper looper yarn upstream gripper 50 and a lower looper yarn upstream gripper 60 (FIG. 6A).
【００２３】針糸上流側把持器４０、上ルーパ糸上流側
把持器５０、下ルーパ糸上流側把持器６０は、それぞれ
図６（ａ）、図７（ａ）、（ｂ）に示すように、機枠１
に固定された糸供給ユニット枠４１に軸着された上流側
把持軸４２と、上流側把持軸４２に加圧把持皿４３、受
け把持皿４４とを有している。上流側把持軸４２に固定
されたバネ受け４５と加圧把持皿４３との間には圧縮バ
ネ４６が介在されている。加圧把持皿４３には糸外れ防
止溝４３ａと、糸外れ防止溝４３ａの位置ずれを防ぐた
めの回転止４３ｂとが形成されている。上流側把持軸４
２には布送り時に針糸３１、上ルーパ糸３２、下ルーパ
糸３３を開放するために加圧把持皿４３を所定位置に停
止させるストッパ４７が固定されている。受け把持皿４
４には糸供給ユニット枠４１との間に緩衝材４８と、加
圧把持皿４３方向に弾撥する圧縮バネ４９とを有してい
る。この圧縮バネ４９は極めて弱い弾発力を付与するバ
ネであるが、これは縫糸を手繰ったときに必要以上に糸
巻からの縫糸が手繰りこまれないようにするためであ
る。The needle yarn upstream gripper 40, the upper looper yarn upstream gripper 50, and the lower looper yarn upstream gripper 60 are as shown in FIGS. 6 (a), 7 (a) and 7 (b), respectively. , Machine frame 1
An upstream gripping shaft 42 is attached to a thread supply unit frame 41 fixed to the frame, and a pressure gripping plate 43 and a receiving gripping plate 44 are provided on the upstream gripping shaft 42. A compression spring 46 is interposed between a spring receiver 45 fixed to the upstream grip shaft 42 and the pressing grip plate 43. The pressing gripping plate 43 is formed with a thread detachment preventing groove 43a and a rotation stopper 43b for preventing the thread detachment preventing groove 43a from being displaced. Upstream gripping shaft 4
A stopper 47 for stopping the pressing and holding plate 43 at a predetermined position in order to release the needle thread 31, the upper looper thread 32, and the lower looper thread 33 at the time of cloth feeding is fixed. Receiving gripping plate 4
4 has a cushioning material 48 between itself and the yarn supply unit frame 41, and a compression spring 49 that rebounds in the direction of the pressure holding plate 43. The compression spring 49 is a spring which gives an extremely weak elastic force, in order to prevent the thread from being wound from being wound more than necessary when the thread is threaded.
【００２４】糸供給装置は、針糸上流側把持器４０、上
ルーパ糸上流側把持器５０、下ルーパ糸上流側把持器６
０からそれぞれ導かれた針糸３１、上ルーパ糸３２、下
ルーパ糸３３を把持し、縫目形成時に開成されて針糸３
１、上ルーパ糸３２、下ルーパ糸３３が縫目形成装置１
００により引出され、布の布送り時に閉成される針糸下
流側把持器７０、上ルーパ糸下流側把持器８０、下ルー
パ糸下流側把持器９０を備えている。The yarn supply device includes a needle yarn upstream gripper 40, an upper looper yarn upstream gripper 50, and a lower looper yarn upstream gripper 6.
The needle thread 31, the upper looper thread 32, and the lower looper thread 33, which are respectively guided from 0, are gripped and opened at the time of forming the stitches.
1, the upper looper thread 32 and the lower looper thread 33
00, a needle thread downstream gripper 70, an upper looper thread downstream gripper 80, and a lower looper thread downstream gripper 90 that are closed when the cloth is fed.
【００２５】針糸下流側把持器７０、上ルーパ糸下流側
把持器８０、下ルーパ糸下流側把持器９０は、それぞれ
図６（ａ）、図８（ａ）、（ｂ）に示すように、機枠１
に固定された糸供給ユニット枠４１に軸着された下流側
把持軸７１と、下流側把持軸７１に加圧把持皿７２、受
け把持皿７３とを有している。上流側把持軸４２に固定
されたバネ受け７４と加圧把持皿７２との間には圧縮バ
ネ７５が介在されている。下流側把持軸７１には縫目形
成時に針糸３１、上ルーパ糸３２、下ルーパ糸３３を開
放するために加圧把持皿７２を所定位置に停止させるス
トッパ７６が固定されている。受け把持皿７３には糸供
給ユニット枠４１との間に緩衝材７７を有している。As shown in FIGS. 6 (a), 8 (a) and 8 (b), the needle thread downstream gripper 70, the upper looper yarn downstream gripper 80, and the lower looper yarn downstream gripper 90 respectively. , Machine frame 1
A downstream gripping shaft 71 is attached to the thread supply unit frame 41 fixed to the frame, and the downstream gripping shaft 71 has a pressure gripping tray 72 and a receiving gripping tray 73. A compression spring 75 is interposed between the spring holder 74 fixed to the upstream grip shaft 42 and the pressing grip plate 72. A stopper 76 for stopping the pressing gripping plate 72 at a predetermined position to release the needle thread 31, the upper looper thread 32, and the lower looper thread 33 at the time of forming a stitch is fixed to the downstream gripping shaft 71. The receiving gripping plate 73 has a cushioning material 77 between itself and the yarn supply unit frame 41.
【００２６】また、図６（ａ）、（ｂ）に示すように、
針駆動腕６を機枠１に枢支する揺動軸８１には揺動腕８
２の一端が固定され、他端は連結棒８３の一端に連結さ
れ、連結棒８３の他端は糸供給ユニット枠４１に枢着さ
れた把持軸駆動カム８４に枢着されている。把持軸駆動
カム８４は上流側把持軸４２、下流側把持軸７１にそれ
ぞれ摺接する端面カム８４ａ、８４ｂを有し、針糸上流
側把持器４０、上ルーパ糸上流側把持器５０、下ルーパ
糸上流側把持器６０を縫目形成時に閉成し、布の布送り
時に開成し、針糸下流側把持器７０、上ルーパ糸下流側
把持器８０、下ルーパ糸下流側把持器９０を縫目形成時
に開成し、布の布送り時に閉成するものである。As shown in FIGS. 6A and 6B,
The swing arm 81 pivotally supports the needle drive arm 6 to the machine frame 1.
One end of the connecting rod 83 is fixed, and the other end is connected to one end of a connecting rod 83. The other end of the connecting rod 83 is pivotally connected to a gripping shaft drive cam 84 that is pivotally mounted to the thread supply unit frame 41. The gripping shaft drive cam 84 has end face cams 84a and 84b that are in sliding contact with the upstream gripping shaft 42 and the downstream gripping shaft 71, respectively, and the needle thread upstream gripper 40, the upper looper thread upstream gripper 50, and the lower looper thread. The upstream gripper 60 is closed when the stitch is formed, and is opened when the cloth is fed, and the needle thread downstream gripper 70, the upper looper thread downstream gripper 80, and the lower looper thread downstream gripper 90 are stitched. It opens when forming and closes when the cloth is fed.
【００２７】糸供給装置は針９、上ルーパ２７、下ルー
パ２１と同期してそれぞれ駆動され、布の布送り時に開
成された針糸上流側把持器４０、上ルーパ糸上流側把持
器５０、下ルーパ糸上流側把持器６０および閉成された
針糸下流側把持器７０、上ルーパ糸下流側把持器８０、
下ルーパ糸下流側把持器９０間にそれぞれ延びる針糸３
１、上ルーパ糸３２、下ルーパ糸３３を縫目形成装置１
００の１縫目にそれぞれ必要な縫糸量として蓄糸し、縫
目形成時に放糸する図６（ａ）、図９に示すような針糸
蓄糸器１１０、上ルーパ糸蓄糸器１２０、下ルーパ糸蓄
糸器１３０を備えている。The yarn supply device is driven in synchronization with the needle 9, the upper looper 27, and the lower looper 21, respectively, and the needle yarn upstream gripper 40, the upper looper yarn upstream gripper 50 opened when the cloth is fed. A lower looper yarn upstream gripper 60, a closed needle yarn downstream gripper 70, an upper looper yarn downstream gripper 80,
Needle thread 3 extending between lower looper thread downstream gripper 90
1, the upper looper thread 32 and the lower looper thread 33
6A, the needle thread storage device 110 and the upper looper thread storage device 120 as shown in FIGS. The lower looper yarn storage device 130 is provided.
【００２８】このような針糸蓄糸器１１０、上ルーパ糸
蓄糸器１２０、下ルーパ糸蓄糸器１３０は、例えばそれ
ぞれ縫目形成装置１００と同期して駆動され、布の布送
り時に開成された針糸上流側把持器４０、上ルーパ糸上
流側把持器５０、下ルーパ糸上流側把持器６０および閉
成された針糸下流側把持器７０、上ルーパ糸下流側把持
器８０、下ルーパ糸下流側把持器９０間に延びる縫糸を
縫目形成装置１００の１縫目に必要な縫糸量として糸巻
５１、５２、５３から引出して蓄糸し、縫目形成時に放
糸する手繰部材１１１、１２１、１３１から成るもので
ある。手繰部材１１１、１２１、１３１は針糸上流側把
持器４０、上ルーパ糸上流側把持器５０、下ルーパ糸上
流側把持器６０および針糸下流側把持器７０、上ルーパ
糸下流側把持器８０、下ルーパ糸下流側把持器９０間に
給糸方向に隔置して配設された一対の針糸案内５４ａ、
５４ｂ、上ルーパ糸案内５５ａ、５５ｂ、下ルーパ糸案
内５６ａ、５６ｂの間にそれぞれ配置されている。The needle thread accumulator 110, the upper looper thread accumulator 120, and the lower looper thread accumulator 130 are driven, for example, in synchronization with the stitch forming apparatus 100, respectively, and are opened when the cloth is fed. Needle thread upstream gripper 40, upper looper thread upstream gripper 50, lower looper thread upstream gripper 60, closed needle thread downstream gripper 70, upper looper thread downstream gripper 80, lower A hand-rolling member 111 which withdraws a thread extending between the looper thread downstream gripper 90 as a necessary thread amount for the first stitch of the stitch forming apparatus 100 from the bobbins 51, 52, 53, stores the thread, and releases the thread when forming the stitch. , 121, 131. The hand-rolling members 111, 121, and 131 include a needle thread upstream gripper 40, an upper looper thread upstream gripper 50, a lower looper thread upstream gripper 60, a needle thread downstream gripper 70, and an upper looper thread downstream gripper 80. A pair of needle thread guides 54a disposed between the lower looper thread downstream gripper 90 in the yarn feeding direction.
54b, upper looper thread guides 55a and 55b, and lower looper thread guides 56a and 56b.
【００２９】この手繰部材１１１、１２１、１３１を針
糸上流側把持器４０、上ルーパ糸上流側把持器５０、下
ルーパ糸上流側把持器６０、および針糸下流側把持器７
０、上ルーパ糸下流側把持器８０、下ルーパ糸下流側把
持器９０に同期して駆動させるために、図１０、図１１
に示すように主送り駆動腕９１２が連結リンク９１、ベ
ルクランク９２、連結リンク９３、軸腕９４からなる連
設リンク９５を介して手繰部材駆動軸９６に接続されて
いる。手繰部材駆動軸９６には針糸手繰部材駆動腕９７
と、上ルーパ糸手繰部材駆動腕９８とが固定されてい
る。The hand-rolling members 111, 121, 131 are gripped by the needle thread upstream gripper 40, the upper looper thread upstream gripper 50, the lower looper thread upstream gripper 60, and the needle thread downstream gripper 7.
0, in order to drive in synchronization with the upper looper yarn downstream gripper 80 and the lower looper yarn downstream gripper 90, FIGS.
As shown in the figure, the main feed drive arm 912 is connected to the hand-moving member drive shaft 96 via a connecting link 95 including a connecting link 91, a bell crank 92, a connecting link 93, and a shaft arm 94. The thread driving member driving arm 96 has a needle thread
And the upper looper thread reeling member drive arm 98 are fixed.
【００３０】針糸手繰部材駆動腕９７は図１２に示すよ
うに、後述する連結軸７１３で連結された駆動リンク１
０１、１０２の下端に枢着され、駆動リンク１０２の上
端は糸供給ユニット枠４１に軸支された手繰軸９９に固
定された手繰部材１１１に枢着されている。上ルーパ糸
手繰部材駆動腕９８は後述する連結軸５２０で連結され
た駆動リンク１０３、１０４の下端に枢着され、駆動リ
ンク１０４の上端は糸供給ユニット枠４１に軸支された
手繰軸９９に枢着された手繰部材１２１に枢着されてい
る。手繰部材１３１は手繰軸９９上に枢着されている。As shown in FIG. 12, the needle thread reeling member drive arm 97 has a drive link 1 connected by a connection shaft 713 to be described later.
The drive link 102 is pivotally attached to the lower ends of the drive links 101 and 102, and the upper end of the drive link 102 is pivotally connected to a reeling member 111 fixed to a reeling shaft 99 which is supported by the thread supply unit frame 41. The upper looper thread reeling member drive arm 98 is pivotally connected to lower ends of drive links 103 and 104 connected by a coupling shaft 520 described later, and an upper end of the drive link 104 is connected to a reel shaft 99 pivotally supported by the thread supply unit frame 41. It is pivotally attached to the pivot member 121 which is pivotally attached. The hand-pulling member 131 is pivotally mounted on a hand-pulling shaft 99.
【００３１】糸供給装置は普通ロック縫時には針糸蓄糸
器１１０の手繰部材１１１を針９に同期して駆動し、上
ルーパ糸蓄糸器１２０の手繰部材１２１および下ルーパ
糸蓄糸器１３０の手繰部材１３１を上ルーパ２７および
下ルーパ２１の何れか一方に同期して駆動し、巻ロック
縫時には針糸蓄糸器１１０の手繰部材１１１および下ル
ーパ糸蓄糸器１３０の手繰部材１３１を針９に同期して
駆動し、上ルーパ糸蓄糸器１２０の手繰部材１２１を上
ルーパ２７に同期して駆動する切替機構８００を備えて
いる。The thread supply device drives the hand reeling member 111 of the needle thread accumulator 110 in synchronization with the needle 9 at the time of ordinary lock sewing, and the hand reeling member 121 of the upper looper thread accumulator 120 and the lower looper thread accumulator 130. Is driven in synchronization with one of the upper looper 27 and the lower looper 21, and during winding lock sewing, the hand-rolling member 111 of the needle thread storage device 110 and the hand-rolling member 131 of the lower looper thread storage device 130 are moved. A switching mechanism 800 that is driven in synchronization with the needle 9 and that drives the hand-rolling member 121 of the upper looper yarn accumulator 120 in synchronization with the upper looper 27 is provided.
【００３２】切替機構８００は図１３に示すように、手
繰部材１２１に固定された雌クラッチ部１０５と、手繰
軸９９に固定された雌クラッチ部１０６と、手繰部材１
３１に固定され手繰軸９９上に枢支されるスリーブ１０
７と、スリーブ１０７上で雌クラッチ部１０５、雌クラ
ッチ部１０６間において摺動する雄クラッチスライダ１
０８と、雄クラッチスライダ１０８を駆動する操作レバ
ー１０９とからなる。雄クラッチスライダ１０８の溝１
０８ａにはスライダ駆動腕１１２の一端に設けたピン１
１３が遊嵌されている。スライダ駆動腕１１２の他端は
糸供給ユニット枠４１に枢支され、他端側の先端は三角
カム１１２ａを形成している。操作レバー１０９は糸供
給ユニット枠４１に枢着され、駆動リンク１１４を枢着
している。駆動リンク１１４には三角カム１１２ａに係
合するカムフォロア１１５が設けられ、スライダ駆動腕
１１２とカムフォロア１１５との間には引張バネ１１６
が張設され、雄クラッチスライダ１０８を雌クラッチ部
１０５、雌クラッチ部１０６の何れか一方に咬み合う状
態を維持するように作動する。As shown in FIG. 13, the switching mechanism 800 includes a female clutch portion 105 fixed to the hand-moving member 121, a female clutch portion 106 fixed to the hand-moving shaft 99, and a hand-moving member 1.
Sleeve 10 fixed to 31 and pivotally supported on hand shaft 99
And a male clutch slider 1 sliding between the female clutch portion 105 and the female clutch portion 106 on the sleeve 107.
08 and an operating lever 109 for driving the male clutch slider 108. Groove 1 of male clutch slider 108
08a is a pin 1 provided at one end of the slider drive arm 112.
13 is loosely fitted. The other end of the slider drive arm 112 is pivotally supported by the yarn supply unit frame 41, and the other end forms a triangular cam 112a. The operation lever 109 is pivotally attached to the yarn supply unit frame 41 and has the drive link 114 pivotally attached thereto. The drive link 114 is provided with a cam follower 115 that engages with the triangular cam 112a, and a tension spring 116 is provided between the slider drive arm 112 and the cam follower 115.
And operates so as to maintain the state in which the male clutch slider 108 is engaged with either the female clutch portion 105 or the female clutch portion 106.
【００３３】このように構成された糸供給装置は、上ル
ーパ糸蓄糸器１２０および下ルーパ糸蓄糸器１３０を縫
幅調節部１０００の縫幅調節ダイヤル１００２の操作に
応じ変化する１縫目に必要な縫糸量に対応して連動させ
て駆動するために、図９、図１４、図１５に示すような
縫幅調節連動手段５００を有している。縫幅調節連動手
段５００は一端が機枠１に固定された軸１００１に枢着
され、機枠１に固定された支点部５０２を中心に縫幅調
節ダイヤル１００２の操作に応じて揺動する第１縫幅連
動腕５０１と、第１縫幅連動腕５０１の他端に段ネジ５
０４で連結された第２縫幅連動腕５０３と、第２縫幅連
動腕５０３に縫幅連動腕軸５０５にて固定された縫幅制
御腕５０６とを備えている。The thread supply device having the above-described configuration provides an upper looper thread storage device 120 and a lower looper thread storage device 130 with the first stitch that changes in accordance with the operation of the sewing width adjusting dial 1002 of the sewing width adjusting section 1000. In order to drive in association with the required amount of sewing thread, a sewing width adjustment interlocking means 500 as shown in FIGS. 9, 14 and 15 is provided. The sewing width adjustment interlocking means 500 is pivotally connected at one end to a shaft 1001 fixed to the machine frame 1, and swings around a fulcrum 502 fixed to the machine frame 1 in response to the operation of the sewing width adjustment dial 1002. The first sewing width interlocking arm 501 and the other end of the first sewing width interlocking arm 501
The second sewing width interlocking arm 503 is connected to the second sewing width interlocking arm 503, and the sewing width control arm 506 is fixed to the second sewing width interlocking arm 503 by a sewing width interlocking arm shaft 505.
【００３４】また、縫幅調節連動手段５００は駆動リン
ク１０３、１０４を連結する連結軸５２０に固定された
調節角駒５１６と、調節角駒５１６が摺動自在な溝を有
する調節桝５１５と、調節桝５１５の一端を枠４１に枢
着する調節桝軸５１９と、調節桝５１５の他端に段ネジ
５１４にて枢着される縫幅制御縦ロッド５０７とを備え
ている。縫幅制御縦ロッド５０７の一端にはフック部５
０７ａが設けられ、縫幅制御腕５０６の端部に設けられ
たフック部５０６ａに係合されている。The sewing width adjusting interlocking means 500 includes an adjusting square piece 516 fixed to a connecting shaft 520 connecting the driving links 103 and 104, an adjusting square 515 having a groove in which the adjusting square piece 516 can slide. An adjustment box shaft 519 for pivotally connecting one end of the adjustment box 515 to the frame 41, and a sewing width control vertical rod 507 pivotally connected to the other end of the adjustment box 515 with a step screw 514 are provided. A hook portion 5 is provided at one end of the sewing width control vertical rod 507.
07a is provided and is engaged with a hook 506a provided at the end of the sewing width control arm 506.
【００３５】なお、調節桝５１５には内設された調節角
駒５１６の一部を覆設するために調節桝蓋５１７が固定
され、この調節桝蓋５１７と枠４１との間には引張りバ
ネ５１８が張設され、手繰部材１２１を常時、所定位置
に付勢させている。さらに、縫幅調節連動手段５００は
ロック縫いの風合い、即ち上ルーパ糸３２、下ルーパ糸
３３の締り具合を調節する縫幅微調整ダイヤル５０８を
有している。縫幅微調整ダイヤル５０８は縫幅微調整ダ
イヤル軸５０９の一端に固定されている。縫幅微調整ダ
イヤル軸５０９は枠４１にカラー５２１、５２２を介し
てネジ５２３、５２４にて固定された押え板５１１に、
スラスト受５１０を介して軸支されている。縫幅微調整
ダイヤル軸５０９の他端には縫幅微調整二又５１２が螺
合され、縫幅微調整二又５１２は縫幅制御縦ロッド５０
７の他端に設けられた二又部５０７ｂにピン５１３で係
合されている。An adjusting box 517 is fixed to the adjusting box 515 to cover a part of the adjusting square piece 516 provided therein. A tension spring is provided between the adjusting box 517 and the frame 41. 518 is stretched to constantly urge the hand-moving member 121 to a predetermined position. Further, the sewing width adjustment interlocking means 500 has a sewing width fine adjustment dial 508 for adjusting the texture of the lock sewing, that is, the tightening degree of the upper looper thread 32 and the lower looper thread 33. The sewing width fine adjustment dial 508 is fixed to one end of a sewing width fine adjustment dial shaft 509. The sewing width fine adjustment dial shaft 509 is fixed to a holding plate 511 fixed to the frame 41 with screws 523 and 524 via collars 521 and 522.
It is pivotally supported via a thrust receiver 510. The other end of the sewing width fine adjustment dial shaft 509 is screwed with a sewing width fine adjustment fork 512, and the sewing width fine adjustment fork 512 is a sewing width control vertical rod 50.
7 is engaged with a forked portion 507 b provided at the other end of the base 7 by a pin 513.
【００３６】また、糸供給装置は、針糸蓄糸器１１０、
上ルーパ糸蓄糸器１２０および下ルーパ糸蓄糸器１３０
を縫目送り調節部９００の送り目調節ダイヤル９３０の
操作に応じ変化する１縫目に必要な縫糸量に対応して連
動させて駆動するために、縫目送り調節連動手段６００
を有している。縫目送り調節連動手段６００は上述した
連結リンク９１、ベルクランク９２、連結リンク９３、
軸腕９４からなる連設リンク９５と、手繰部材駆動軸９
６とからなるものである（図１０）。The yarn supply device includes a needle yarn accumulator 110,
Upper looper yarn storage device 120 and lower looper yarn storage device 130
The stitch feed adjustment interlocking means 600 is driven in conjunction with the amount of thread required for the first stitch which changes according to the operation of the feed stitch adjustment dial 930 of the stitch feed adjusting section 900.
have. The stitch feed adjustment interlocking means 600 includes the above-described connection link 91, bell crank 92, connection link 93,
A continuous link 95 composed of a shaft arm 94;
6 (FIG. 10).
【００３７】さらに、糸供給装置は、針糸蓄糸器１１０
を布押え１０５０による布厚に応じて変化する１縫目に
必要な縫糸量に対応して連動させて駆動するために、図
１６に示すような布厚調節連動手段７００を有してい
る。布厚調節連動手段７００は布押え１０５０を機枠１
に取付るための押棒１０５１に固定された布厚検出台７
０１と、布厚検出台７０１に固定されたピン７０２に係
合される布厚検出腕７０３と、一端が布厚検出腕７０３
に固定され布厚検出台７０１に固定されたピン７０２の
垂直方向の移動により回動する布厚連動軸７０４と、布
厚連動軸７０４の他端に固定された調節腕７０５と、一
端が調節腕７０５に連結された調節リンク７０６とを備
えている。Further, the yarn supply device includes a needle yarn accumulator 110
A cloth thickness adjustment interlocking means 700 as shown in FIG. 16 is provided in order to interlock and drive in accordance with the required sewing amount of the first stitch which changes according to the cloth thickness by the cloth presser 1050. The cloth thickness adjustment interlocking means 700 moves the cloth presser 1050 to the machine frame 1.
Cloth detection table 7 fixed to push rod 1051 for attachment to
01, a cloth thickness detection arm 703 engaged with a pin 702 fixed to the cloth thickness detection base 701, and one end of the cloth thickness detection arm 703.
, Which is rotated by a vertical movement of a pin 702 fixed to the cloth thickness detecting base 701, an adjusting arm 705 fixed to the other end of the cloth thickness interlocking shaft 704, and one end is adjusted. An adjustment link 706 connected to the arm 705.
【００３８】また、布厚調節連動手段７００は縫幅調節
連動手段５００と同様に、駆動リンク１０１、１０２を
連結する連結軸７１３に固定された調節角駒７０８と、
調節角駒７０８が摺動自在な溝を有する調節桝７０７
と、調節桝７０７の一端を枠４１に枢着する調節桝軸７
１２とを備えている。調節桝７０７の他端には段ネジ７
１１にて調節リンク７０６の他端が枢着されている。な
お、調節桝７０７には内設された調節角駒７０８の一部
を覆設するために調節桝蓋７０９が固定され、この調節
桝蓋７０９と糸供給ユニット枠４１との間には引張りバ
ネ７１０が張設され、手繰部材１１１を常時、所定位置
に付勢させている。Similarly to the sewing width adjustment interlocking means 500, the cloth thickness adjustment interlocking means 700 includes an adjustment angle piece 708 fixed to a connection shaft 713 connecting the drive links 101 and 102;
Adjustment box 707 in which adjustment angle piece 708 has a slidable groove
And a control box shaft 7 for pivotally connecting one end of the control box 707 to the frame 41.
12 are provided. The other end of the adjusting box 707 has a shoulder screw 7
At 11 the other end of the adjustment link 706 is pivoted. Note that an adjustment box 709 is fixed to the adjustment box 707 to cover a part of the adjustment square piece 708 provided therein. A tension spring is provided between the adjustment box 709 and the yarn supply unit frame 41. 710 is stretched to constantly urge the hand-rolling member 111 to a predetermined position.
【００３９】以上のような構成における糸供給装置の動
作について説明する。まず、針糸、上ルーパ糸、下ルー
パ糸の各糸巻５１、５２、５３からそれぞれ針糸３１、
上ルーパ糸３２、下ルーパ糸３３を引出し、糸案内２８
（図５）を経て各糸をそれぞれ針糸上流側把持器４０、
上ルーパ糸上流側把持器５０、下ルーパ糸上流側把持器
６０の各加圧把持皿４３、受け把持皿４７間、および針
糸下流側把持器７０、上ルーパ糸下流側把持器８０、下
ルーパ糸下流側把持器９０の各加圧把持皿７２、受け把
持皿７３間にそれぞれ挿入する。挿入後、針糸３１は糸
案内２８、針糸天秤２９を経て針９の針穴に、上ルーパ
糸３２および下ルーパ糸３３は加圧気体を利用して自動
的に糸を通すための糸通し器３４を経て上ルーパ２７、
下ルーパ２１の糸口にそれぞれ通す。The operation of the yarn supplying device having the above configuration will be described. First, the needle thread 31, 52, 53 of the needle thread, the upper looper thread, and the lower looper thread, respectively,
The upper looper thread 32 and the lower looper thread 33 are pulled out, and the thread guide 28 is pulled out.
Each yarn is passed through the needle yarn upstream side gripper 40 (FIG. 5),
The upper gripper yarn upstream gripper 50 and the lower looper yarn upstream gripper 60 between the pressure gripping trays 43 and the receiving gripping trays 47, and the needle thread downstream gripper 70, the upper looper yarn downstream gripper 80, It is inserted between each pressurized gripping plate 72 and receiving gripping plate 73 of the looper yarn downstream side gripper 90. After insertion, the needle thread 31 passes through the thread guide 28 and the needle thread balance 29 into the needle hole of the needle 9, and the upper looper thread 32 and the lower looper thread 33 use a pressurized gas to automatically pass the thread. The upper looper 27 through the passer 34,
Pass each through the thread of the lower looper 21.
【００４０】このように糸通しが終了した後、縫い動作
を開始すると駆動軸３が回転し、その一回転において駆
動軸３に設けられた針駆動偏心カム４に枢着された針駆
動ロッド５によって、針駆動腕６は一往復の揺動運動を
行う。この際、針９の一往復の上下運動と共に、針駆動
腕６を機枠１に枢支する揺動軸８１に固定された揺動腕
８２および連結棒８３によって把持軸駆動カム８４は一
往復の揺動運動を行う。これにより、上流側把持軸４２
と下流側把持軸７１とは、把持軸駆動カム８４の端面カ
ム８４ａ、８４ｂによって下ルーパ糸上流側把持器６０
側に交互に移動しながら往復運動するので、針糸上流側
把持器４０、上ルーパ糸上流側把持器５０、下ルーパ上
流側把持器６０を縫目形成時に閉成させ、布送り時に開
成させ、針糸下流側把持器７０、上ルーパ糸下流側把持
器８０、下ルーパ糸下流側把持器９０を縫目形成時に開
成させ、布送り時に閉成させることができる。When the sewing operation is started after the completion of the threading, the drive shaft 3 rotates, and the needle drive rod 5 pivotally attached to the needle drive eccentric cam 4 provided on the drive shaft 3 in one rotation. Accordingly, the needle driving arm 6 performs one reciprocating swinging motion. At this time, the holding shaft driving cam 84 makes one reciprocating movement by the swinging arm 82 and the connecting rod 83 fixed to the swinging shaft 81 that pivotally supports the needle driving arm 6 to the machine frame 1 together with the reciprocating vertical movement of the needle 9. Perform rocking movement. Thereby, the upstream gripping shaft 42
And the downstream gripping shaft 71 are connected to the lower looper yarn upstream gripper 60 by end cams 84a and 84b of the gripping shaft drive cam 84.
Side, the needle thread upstream gripper 40, the upper looper thread upstream gripper 50, and the lower looper upstream gripper 60 are closed at the time of forming a stitch and opened at the time of cloth feeding. In addition, the needle thread downstream gripper 70, the upper looper thread downstream gripper 80, and the lower looper thread downstream gripper 90 can be opened when forming a stitch and closed when feeding a cloth.
【００４１】このような把持器の各糸を開成、閉成する
動作と同時に、駆動軸３の一回転において駆動軸３に固
定された水平送りカム９１０に嵌合する水平送りロッド
９１１は往復運動を行う。この水平送りロッド９１１の
往復運動により、水平送りロッド９１１に連結された主
送り駆動腕９１２が揺動運動を行うので、主送り駆動腕
９１２の長方形の孔９１２ｂに摺動自在に支持された主
送りスライドロッド９１３は、連結された連設リンク９
５を介して手繰部材駆動軸９６を所定角度で回動させ
る。At the same time as opening and closing each thread of the gripper, the horizontal feed rod 911 fitted to the horizontal feed cam 910 fixed to the drive shaft 3 in one rotation of the drive shaft 3 reciprocates. I do. The reciprocating motion of the horizontal feed rod 911 causes the main feed drive arm 912 connected to the horizontal feed rod 911 to perform an oscillating motion, so that the main feed drive arm 912 is slidably supported by the rectangular hole 912b. The feed slide rod 913 is connected to the connected link 9.
The handle member drive shaft 96 is rotated at a predetermined angle via the fifth lever 5.
【００４２】手繰部材駆動軸９６が所定角度で回動する
と、手繰部材駆動軸９６に固定された針糸手繰部材駆動
腕９７および上ルーパ糸手繰部材駆動腕９８に枢着され
た一体の駆動リンク１０１、１０２および一体の駆動リ
ンク１０３、１０４によって、針糸蓄糸器１１０の手繰
部材１１１および上ルーパ糸蓄糸器１２０の手繰部材１
２１は揺動運動を行う。この手繰部材１１１および手繰
部材１２１の揺動運動は駆動軸３の一回転において一往
復する揺動運動である。When the hand-rolling member drive shaft 96 is rotated by a predetermined angle, an integral drive link pivotally attached to the needle thread hand-rolling member drive arm 97 and the upper looper thread hand-rolling member drive arm 98 fixed to the hand-rolling member drive shaft 96. The hand-rolling member 111 of the needle thread storage device 110 and the hand-rolling member 1 of the upper looper thread storage device 120 are provided by 101, 102 and the integral drive links 103, 104.
21 performs a rocking motion. The swing motion of the hand-moving member 111 and the hand-moving member 121 is a reciprocating swing motion in one rotation of the drive shaft 3.
【００４３】なお、下ルーパ糸蓄糸器１３０の手繰部材
１３１は切替機構８００によって、普通ロック縫時には
上ルーパ糸蓄糸器１２０の手繰部材１２１に同期して駆
動され、巻ロック縫時には針糸蓄糸器１１０の手繰部材
１１１に同期して駆動される。即ち、図１２（ｂ）、図
１３に示すように巻ロック縫いに操作レバー１０９を操
作すると、スリーブ１０７上に嵌合した雄クラッチスラ
イダ１０８のクラッチ爪１０８ｂがスリーブ１０７の凹
溝１０７ａより突出して雌クラッチ部１０６の凹溝１０
６ａに咬み合うので、手繰部材１３１および手繰部材１
１１は同じ揺動角で駆動される。また、図１２（ａ）、
図１３に示すように普通ロック縫いに操作レバー１０９
を操作すると、雄クラッチスライダ１０８のクラッチ爪
１０８ｃが雌クラッチ部１０５の凹溝１０５ａに咬み合
うので、手繰部材１３１および手繰部材１２１は同じ揺
動角で駆動される。これにより、切替機構８００は普通
ロック縫時には針糸蓄糸器１１０の手繰部材１１１を針
９に同期して駆動し、上ルーパ糸蓄糸器１２０の手繰部
材１２１および下ルーパ糸蓄糸器１３０の手繰部材１３
１を上ルーパ２７および下ルーパ２１の何れか一方に同
期して駆動し、巻ロック縫時には針糸蓄糸器１１０の手
繰部材１１１および下ルーパ糸蓄糸器１３０の手繰部材
１３１を針９に同期して駆動し、上ルーパ糸蓄糸器１２
０の手繰部材１２１を上ルーパ２７に同期して駆動する
ことができる。したがって、下ルーパ糸蓄糸器１３０の
手繰部材１３１は普通ロック縫時と巻ロック縫時とでは
蓄糸量が異なる。The hand reeling member 131 of the lower looper thread storage device 130 is driven by the switching mechanism 800 in synchronization with the manual reeling member 121 of the upper looper thread storage device 120 during normal lock sewing, and the needle thread during winding lock sewing. It is driven in synchronization with the hand reel member 111 of the yarn storage device 110. That is, as shown in FIGS. 12B and 13, when the operation lever 109 is operated for the winding lock sewing, the clutch claws 108 b of the male clutch slider 108 fitted on the sleeve 107 project from the groove 107 a of the sleeve 107. Groove 10 of female clutch part 106
6a, the hand-moving member 131 and the hand-handing member 1
11 are driven at the same swing angle. FIG. 12 (a),
As shown in FIG.
Is operated, the clutch claw 108c of the male clutch slider 108 engages with the concave groove 105a of the female clutch portion 105, so that the hand member 131 and the hand member 121 are driven at the same swing angle. In this way, the switching mechanism 800 drives the hand reeling member 111 of the needle thread storage device 110 in synchronization with the needle 9 at the time of the normal lock sewing, and the hand reeling member 121 of the upper looper thread storage device 120 and the lower looper thread storage device 130. Hand member 13
1 is driven in synchronization with one of the upper looper 27 and the lower looper 21, and at the time of winding lock sewing, the hand-rolling member 111 of the needle thread storage device 110 and the hand-rolling member 131 of the lower looper thread storage device 130 are attached to the needle 9. The upper looper yarn storage device 12 is driven in synchronization with the upper looper yarn storage device 12.
The zero hand member 121 can be driven in synchronization with the upper looper 27. Accordingly, the thread storage amount of the hand-rolling member 131 of the lower looper thread storage device 130 differs between the ordinary lock sewing and the wound lock sewing.
【００４４】このような本実施例の糸供給装置の具体的
な糸供給動作を、上ルーパ糸上流側把持器５０、上ルー
パ糸下流側把持器８０、上ルーパ糸蓄糸器１２０によっ
て説明する。布送り時は図１７（ａ）、（ｂ）に示すよ
うに、上流側把持軸４２が把持軸駆動カム８４の端面カ
ム８４ａによって押圧されないので、加圧把持皿４３お
よび受け把持皿４４に対する圧縮バネ４６、４９からの
弾発力が弱くなり、上ルーパ糸上流側把持器５０は開成
される。また、このときには下流側把持軸７１が把持軸
駆動カム８４の端面カム８４ｂによって押圧されるの
で、下流側把持軸７１に固定されたバネ受け７４によっ
て圧縮バネ７５を圧縮し加圧把持皿７２に弾発力を付与
する。これにより、上ルーパ糸下流側把持器８０は閉成
される。さらに、上ルーパ糸蓄糸器１２０の手繰部材１
２１が、上ルーパ糸３２を糸巻５２から引出しながら移
動する。したがって、縫目形成装置１００の１縫目に必
要な縫糸量として蓄糸することができる。The specific yarn supply operation of the yarn supply device of this embodiment will be described with reference to the upper looper yarn upstream gripper 50, the upper looper yarn downstream gripper 80, and the upper looper yarn storage device 120. . During cloth feeding, as shown in FIGS. 17A and 17B, the upstream gripping shaft 42 is not pressed by the end cam 84 a of the gripping shaft drive cam 84, so that the pressing gripping plate 43 and the receiving gripping plate 44 are compressed. The elastic force from the springs 46 and 49 is weakened, and the upper looper yarn upstream gripper 50 is opened. Also, at this time, the downstream grip shaft 71 is pressed by the end cam 84b of the grip shaft drive cam 84, so that the compression spring 75 is compressed by the spring receiver 74 fixed to the downstream grip shaft 71, and the compression grip 75 is compressed. Gives resilience. Thereby, the upper looper yarn downstream gripper 80 is closed. Further, the hand reeling member 1 of the upper looper yarn storage device 120
21 moves while pulling out the upper looper thread 32 from the bobbin 52. Therefore, it is possible to accumulate the required amount of thread for the first stitch of the stitch forming apparatus 100.
【００４５】また縫目形成時は図１８（ａ）、（ｂ）に
示すように、上流側把持軸４２が把持軸駆動カム８４の
端面カム８４ａによって押圧されるので、上流側把持軸
４２に固定されたバネ受け４５によって圧縮バネ４６を
圧縮し加圧把持皿４３に弾発力を付与する。これによ
り、圧縮バネ４９も受け把持皿４４に弾発力を付与する
ので上ルーパ糸上流側把持器５０は閉成される。また、
このときには下流側把持軸７１が把持軸駆動カム８４の
端面カム８４ｂによって押圧されないので、加圧把持皿
７２はストッパ７６によって圧縮バネ７５方向に強制的
に移動される。これにより、上ルーパ糸下流側把持器８
０は開成される。なお、上ルーパ糸蓄糸器１２０の手繰
部材１２１は上ルーパ糸３２を手繰らない位置に移動さ
れる。したがって、縫目形成装置１００の１縫目に必要
な縫糸量として蓄糸された上ルーパ糸３２を放糸するこ
とができる。When the stitch is formed, as shown in FIGS. 18A and 18B, the upstream gripping shaft 42 is pressed by the end cam 84a of the gripping shaft drive cam 84. The compression spring 46 is compressed by the fixed spring receiver 45 to apply elastic force to the pressure holding plate 43. As a result, the compression spring 49 also applies a resilient force to the receiving gripping tray 44, so that the upper looper thread upstream gripper 50 is closed. Also,
At this time, since the downstream grip shaft 71 is not pressed by the end cam 84b of the grip shaft driving cam 84, the pressing grip plate 72 is forcibly moved in the direction of the compression spring 75 by the stopper 76. Thereby, the upper looper yarn downstream gripper 8
0 is opened. In addition, the handle member 121 of the upper looper yarn storage device 120 is moved to a position where the upper looper yarn 32 is not twisted. Therefore, it is possible to release the upper looper thread 32 stored as a necessary thread amount for the first stitch of the stitch forming apparatus 100.
【００４６】なお、針糸上流側把持器４０、針糸下流側
把持器７０、針糸蓄糸器１１０、および下ルーパ糸上流
側把持器６０、下ルーパ糸下流側把持器９０、下ルーパ
糸蓄糸器１３０も同様の糸供給動作をするのは言うまで
もない。このような糸供給装置において、布に縫目形成
を行なうときにオーバーロック縫いの縫幅を変更して糸
の縫糸量を調整する場合には、縫幅調節ダイヤル１００
２を回して、縫幅調節連動手段５００の第１の縫幅連動
腕５０１、第２の縫幅連動腕５０２および縫幅連動腕軸
５０５により縫幅制御腕５０６を揺動させ、縫幅制御縦
ロッド５０７を介して調節桝５１５の回転位置を調整す
る。即ち、縫幅調節ダイヤル１００２が縫幅が広くなる
ように設定されているときには、図１９（ａ）に示すよ
うに調節桝５１５の溝方向がほぼ垂直方向に位置してい
るので、手繰部材駆動軸９６に固定された上ルーパ糸手
繰部材駆動腕９８の揺動により、駆動リンク１０３が調
節角駒５１６を実質的に上ルーパ糸手繰部材駆動腕９８
の揺動量Ｚに応じた移動量Ｘで摺動させる。これによ
り、駆動リンク１０４に連結された上ルーパ糸蓄糸器１
２０の手繰り部材１２１は、図２１に示す縫幅Ｗが広い
ときの縫糸量分を蓄糸することができる。The needle thread upstream gripper 40, the needle thread downstream gripper 70, the needle thread accumulator 110, the lower looper thread upstream gripper 60, the lower looper thread downstream gripper 90, the lower looper thread Needless to say, the yarn accumulator 130 performs the same yarn supplying operation. In such a thread supply device, when the stitch width of the overlock stitch is changed by adjusting the sewing thread amount when forming a stitch on a cloth, the sewing width adjustment dial 100 is used.
2, the sewing width control arm 506 is swung by the first sewing width interlocking arm 501, the second sewing width interlocking arm 502, and the sewing width interlocking arm shaft 505 of the sewing width adjustment interlocking means 500 to control the sewing width. The rotation position of the adjustment box 515 is adjusted via the vertical rod 507. That is, when the sewing width adjustment dial 1002 is set so as to increase the sewing width, the groove direction of the adjustment box 515 is located almost vertically as shown in FIG. By swinging of the upper looper threading member drive arm 98 fixed to the shaft 96, the drive link 103 causes the adjustment angle piece 516 to substantially move the upper looper thread threading member drive arm 98.
Is slid by a movement amount X corresponding to the swing amount Z of As a result, the upper looper yarn accumulator 1 connected to the drive link 104
The 20 hand-pulling member 121 can accumulate the amount of sewing thread when the sewing width W shown in FIG. 21 is wide.
【００４７】また、縫幅調節ダイヤル１００２が縫幅が
狭くなるように設定されているときには、図１９（ｂ）
に示すように調節桝５１５の溝方向が、枠４１に枢着さ
れている調節桝軸５１９を中心に垂直方向から所定角度
だけ回転移動するので、調節角駒５１６は上ルーパ糸手
繰部材駆動腕９８の揺動量Ｚより少ない移動量Ｙで摺動
される。これにより、駆動リンク１０４に連結された上
ルーパ糸蓄糸器１２０の手繰り部材１２１は、図２１に
示す縫幅Ｗが狭いときの縫糸量分を蓄糸することにな
る。When the sewing width adjustment dial 1002 is set so as to reduce the sewing width, FIG.
Since the groove direction of the adjustment box 515 is rotated by a predetermined angle from the vertical direction about the adjustment box shaft 519 pivotally attached to the frame 41 as shown in FIG. The slide is performed with a movement amount Y smaller than the swing amount Z of 98. As a result, the hand-pulling member 121 of the upper looper thread storage device 120 connected to the drive link 104 stores the thread amount when the sewing width W shown in FIG. 21 is narrow.
【００４８】また、布に縫目形成を行なうときにオーバ
ーロック縫いの縫目送り量の変更に対応して糸の縫糸量
を調整する場合には、送り目調節ダイヤル９３０を回し
て、主送りスライドロッド９１３に固定された止め板９
１４Ｂに対する主送り駆動腕９１２の揺動位置を変更し
て、連設リンク９５による手繰部材駆動軸９６の回動量
を調整する。この手繰部材駆動軸９６の回動量の調整に
より、針糸蓄糸器１１０、上ルーパ糸蓄糸器１２０、下
ルーパ糸蓄糸器１３０の各手繰部材１１１、１２１、１
３１の蓄糸量が変化する。したがって、図２１に示す縫
目送りピッチＰを変えるために送り目調節ダイヤル９３
０を回すと、針糸蓄糸器１１０、上ルーパ糸蓄糸器１２
０、下ルーパ糸蓄糸器１３０を縫目送り調節連動手段６
００を介して縫目送り調節部９００に連動させることが
できるので、送り目調節ダイヤル９３０の操作に応じ変
化する１縫目に必要な縫糸量に対応させることができ
る。To adjust the sewing thread amount in response to a change in the stitch feed amount of the overlock stitch when forming a stitch on the cloth, turn the feed stitch adjusting dial 930 to set the main feed. Stop plate 9 fixed to slide rod 913
The swing position of the main feed drive arm 912 with respect to 14B is changed, and the amount of rotation of the hand-held member drive shaft 96 by the continuous link 95 is adjusted. By adjusting the amount of rotation of the hand-rolling member drive shaft 96, the hand-rolling members 111, 121, and 1 of the needle thread storage device 110, the upper looper thread storage device 120, and the lower looper thread storage device 130 are adjusted.
The yarn storage amount of No. 31 changes. Therefore, in order to change the stitch feed pitch P shown in FIG.
By turning 0, the needle thread storage device 110, the upper looper thread storage device 12
0, the lower looper thread storage device 130
Since it can be interlocked with the stitch feed adjusting section 900 via 00, it is possible to correspond to the sewing thread amount required for the first stitch that changes according to the operation of the feed stitch adjusting dial 930.
【００４９】さらに、布に縫目形成を行なうときに布押
え１０５０による布押え量が布厚によって変化する場合
には、押棒１０５１に固定された布厚検出台７０１のピ
ン７０２がその変化に応じて布厚検出腕７０３を介して
布厚連動軸７０４を回転させる。この布厚連動軸７０４
の回転動作により調節腕７０５、調節リンク７０６を介
して調節桝７０７の回転位置を調整する。即ち、布厚が
薄いときには、図２０（ａ）に示すように調節桝７０７
の溝方向がほぼ垂直方向に位置しているので、手繰部材
駆動軸９６に固定された針糸手繰部材駆動腕９７の揺動
により、駆動リンク１０１が調節角駒７０８を実質的に
針糸手繰部材駆動腕９７の揺動量Ｚ′に応じた移動量
Ｘ′で摺動させる。これにより、駆動リンク１０２に連
結された針糸蓄糸器１１０の手繰り部材１１１は、図２
１に示す布厚Ｔが薄いときの縫糸量分を蓄糸することが
できる。Further, when the amount of presser foot by the presser foot 1050 changes according to the cloth thickness when forming a stitch on the cloth, the pin 702 of the cloth thickness detecting table 701 fixed to the push rod 1051 responds to the change. Then, the cloth thickness interlocking shaft 704 is rotated via the cloth thickness detecting arm 703. This cloth thickness interlocking shaft 704
The rotational position of the adjusting box 707 is adjusted via the adjusting arm 705 and the adjusting link 706 by the rotating operation of. That is, when the cloth thickness is thin, as shown in FIG.
Since the groove direction is positioned substantially vertically, the drive link 101 causes the adjusting square piece 708 to substantially move the needle thread handle 708 by the swing of the needle thread handle member drive arm 97 fixed to the thread drive member drive shaft 96. The member drive arm 97 is slid by a movement amount X 'according to the swing amount Z'. As a result, the hand-pulling member 111 of the needle thread storage device 110 connected to the drive link 102 is
The sewing thread amount when the cloth thickness T shown in FIG. 1 is thin can be stored.
【００５０】また、布厚が厚いときには、図２０（ｂ）
に示すように調節桝７０７の溝方向が、糸供給ユニット
枠４１に枢着されている調節桝軸７１２を中心に垂直方
向から所定角度だけ回転移動するので、調節角駒７０８
は針糸手繰部材駆動腕９７の揺動量Ｚ′より少ない移動
量Ｙ′で摺動される。これにより、駆動リンク１０２に
連結された針糸蓄糸器１１０の手繰り部材１１１は、図
２１に示す布厚Ｔが厚いときの縫糸量分だけ蓄糸するこ
とになる。When the cloth thickness is large, FIG.
As shown in the figure, the groove direction of the adjusting box 707 is rotated by a predetermined angle from the vertical direction about the adjusting box shaft 712 pivotally attached to the yarn supply unit frame 41, so that the adjusting square piece 708 is formed.
Is slid with a movement amount Y 'smaller than the swing amount Z' of the needle thread hand-rolling member driving arm 97. Thereby, the hand-pulling member 111 of the needle thread storage device 110 connected to the drive link 102 stores the thread by the sewing thread amount when the cloth thickness T shown in FIG. 21 is large.
【００５１】なお、本実施例においては縫幅調節連動手
段、縫目送り調節連動手段および布厚調節連動手段をそ
れぞれ別個に設けていたが、これに限らず、縫幅調節部
および縫目送り調節部の操作に応じ相互に関連して変化
する１縫目に必要な縫糸量に対応して蓄糸器を連動させ
る縫幅・縫目送り調節連動手段や、布押えによる布厚お
よび縫目送り調節部の操作に応じ相互に関連して変化す
る１縫目に必要な縫糸量に対応して蓄糸器を連動させる
布厚・縫目送り調節連動手段を設けてもよい。In this embodiment, the interlocking means for adjusting the sewing width, the interlocking means for adjusting the stitch feed and the interlocking means for adjusting the cloth thickness are provided separately. A sewing width / stitch feed adjustment interlocking means for interlocking the yarn accumulator in accordance with a required thread amount of the first stitch which changes in relation to each other in accordance with the operation of the adjusting section; A cloth thickness / stitch feed adjustment interlocking means may be provided for interlocking the yarn accumulator in accordance with the required thread amount of the first stitch which changes in relation to each other in accordance with the operation of the feed adjustment section.
【００５２】また、本実施例においては各蓄糸器の手繰
部材によって縫糸量を変化させていたが、これに限ら
ず、各一対の糸案内を移動させることによって縫糸量を
変化させてもよい。例えば、一対の上ルーパ糸案内５５
ａ、５５ｂを縫幅調節連動手段５００に連結させる。具
体的には、一対の上ルーパ糸案内５５ａ、５５ｂで上ル
ーパ糸３２の縫糸量を変化させるために、図２２
（ａ）、（ｂ）に示すような縫幅制御縦ロッド５２６が
使用される。縫幅制御縦ロッド５２６の一端にはフック
部５２６ａが設けられ、縫幅制御腕５０６の端部に設け
られたフック部５０６ａに係合されている。また、他端
には二又部５２６ｂが設けられ、縫幅微調整二又５１２
に固定されたピン５１３に係合されている。さらに、フ
ック部５２６ａと二又部５２６ｂとの間には腕部５２６
ｃが形成されている。この縫幅制御縦ロッド５２６の腕
部５２６ｃは段ネジ５３０で縫糸量調節腕５２７の一端
に連結されている。縫糸量調節腕５２７の他端は段ネジ
５３１で連結腕５３２の一端に連結され、連結腕５３２
の他端は段ネジ５３３で、一対の上ルーパ糸案内５５
ａ、５５ｂを固定した糸案内取付腕５２８に固定されて
いる。なお、縫糸量調節腕５２７の中心部は糸供給ユニ
ット枠４１に軸支されている。糸案内取付腕５２８は縫
幅制御縦ロッド５２６がピン５１３を中心に回動したと
きに、縫糸量調節腕５２７を介して一対の上ルーパ糸案
内５５ａ、５５ｂを回動させることができるように、糸
供給ユニット枠４１に軸着されている。また、糸供給ユ
ニット枠４１と縫幅制御縦ロッド５２６との間には引張
りバネ５２９が張設され、手繰部材１２２を常時、蓄糸
量が少なくなるような位置に付勢させている。Further, in this embodiment, the thread amount is changed by the threading member of each yarn storage device. However, the present invention is not limited to this, and the thread amount may be changed by moving each pair of thread guides. . For example, a pair of upper looper thread guides 55
a and 55b are connected to the sewing width adjustment interlocking means 500. Specifically, in order to change the thread amount of the upper looper thread 32 with the pair of upper looper thread guides 55a and 55b, FIG.
A sewing width control vertical rod 526 as shown in (a) and (b) is used. A hook 526a is provided at one end of the sewing width control vertical rod 526, and is engaged with a hook 506a provided at an end of the sewing width control arm 506. Further, a fork portion 526b is provided at the other end, and a sewing width fine adjustment fork 512 is provided.
Is fixed to the pin 513 which is fixed to the pin. Further, an arm 526 is provided between the hook portion 526a and the forked portion 526b.
c is formed. The arm portion 526c of the sewing width control vertical rod 526 is connected to one end of a thread amount adjusting arm 527 by a step screw 530. The other end of the sewing thread amount adjusting arm 527 is connected to one end of the connecting arm 532 by a step screw 531, and the connecting arm 532 is
Of the upper looper thread guide 55
a and 55b are fixed to the thread guide mounting arm 528 to which the fixing is performed. The center of the thread amount adjusting arm 527 is supported by the thread supply unit frame 41. The thread guide mounting arm 528 can rotate the pair of upper looper thread guides 55a and 55b via the thread amount adjusting arm 527 when the sewing width control vertical rod 526 rotates about the pin 513. The shaft is attached to the yarn supply unit frame 41. Further, a tension spring 529 is stretched between the thread supply unit frame 41 and the sewing width control vertical rod 526, and constantly urges the hand reeling member 122 to a position where the thread storage amount is reduced.
【００５３】このような一対の上ルーパ糸案内５５ａ、
５５ｂの間に配置された上ルーパ糸蓄糸器１２０は針駆
動ロッド５に連動する手繰部材１２２から成るものであ
る。手繰部材１２２は手繰部材１２２を糸供給ユニット
枠４１に軸着するピン１２３を中心に、針駆動ロッド５
の揺動により上ルーパ糸３２を手繰ることができる。し
たがって、縫幅調節ダイヤル１００２を回して第１の縫
幅連動腕５０１、第２の縫幅連動腕５０２および縫幅連
動腕軸５０５により縫幅制御腕５０６を揺動させ、縫幅
制御ロッド５２６、縫糸量調節腕５２７および連結腕５
３２によって一対の上ルーパ糸案内５５ａ、５５ｂの位
置を調整する。即ち、縫幅調節ダイヤル１００２が縫幅
が狭くなるように設定されているときには、図２２
（ａ）に示すように手繰部材１２２による蓄糸量が少な
くなるような高さ位置Ｘ″（手繰部材１２２の最下限位
置を基準とする）に固定させることができる。また、縫
幅調節ダイヤル１００２が縫幅が広くなるように設定さ
れているときには縫幅制御ロッド５２６が縫糸量調節腕
５２７および連結腕５３２を介して手繰部材１２２を押
上げているので、図２２（ｂ）に示すように手繰部材１
２２による蓄糸量が多くなるような高さ位置Ｙ″（手繰
部材１２２の最下限位置を基準とする）に固定させるこ
とができる。Such a pair of upper looper thread guides 55a,
The upper looper yarn accumulator 120 disposed between 55b is composed of a hand-rolling member 122 interlocked with the needle drive rod 5. The hand-moving member 122 is centered on a pin 123 for axially attaching the hand-managing member 122 to the yarn supply unit frame 41, and the needle driving rod 5
The upper looper thread 32 can be turned by the swinging of. Therefore, the sewing width control arm 506 is swung by the first sewing width interlocking arm 501, the second sewing width interlocking arm 502, and the sewing width interlocking arm shaft 505 by turning the sewing width adjustment dial 1002, and the sewing width control rod 526 is turned. , Sewing thread adjusting arm 527 and connecting arm 5
32 adjusts the positions of the pair of upper looper thread guides 55a and 55b. That is, when the sewing width adjustment dial 1002 is set so that the sewing width becomes narrower, FIG.
As shown in (a), the thread can be fixed at a height position X ″ (based on the lowermost position of the hand-rolling member 122) so that the amount of yarn accumulated by the hand-rolling member 122 is reduced. When the sewing width 1002 is set to be large, the sewing width control rod 526 pushes up the hand-pulling member 122 via the thread amount adjusting arm 527 and the connecting arm 532, so that as shown in FIG. To hand member 1
22 can be fixed at a height position Y ″ (based on the lowermost position of the hand-rolling member 122) so that the amount of yarn stored by the yarn 22 increases.
【００５４】また、一対の針糸案内５４ａ、５４ｂ、上
ルーパ糸案内５５ａ、５５ｂ、下ルーパ糸案内５６ａ、
５６ｂを縫目送り調節連動手段６００に連結させる。こ
の場合においても、針糸蓄糸器１１０、上ルーパ糸蓄糸
器１２０および下ルーパ糸蓄糸器１３０の各手繰部材を
針駆動ロッド５に連結させ、また、一対の針糸案内５４
ａ、５４ｂ、上ルーパ糸案内５５ａ、５５ｂ、下ルーパ
糸案内５６ａ、５６ｂをそれぞれ糸案内取付腕（糸案内
取付腕５２８と同形状）に固定させ、各糸案内取付腕を
連結腕（連結腕５３２と同形状）を介して縫糸量調節腕
（縫糸量調節腕５２７と同形状）に連結させる。この縫
糸量調節腕を連設リンク９５に連結させれば、送り目調
節ダイヤル９３０の操作に応じて一対の針糸案内５４
ａ、５４ｂ、上ルーパ糸案内５５ａ、５５ｂ、下ルーパ
糸案内５６ａ、５６ｂの高さ位置を変化させることがで
きる。Further, a pair of needle thread guides 54a, 54b, upper looper thread guides 55a, 55b, lower looper thread guide 56a,
56b is connected to the stitch feed adjustment interlocking means 600. Also in this case, the hand-operated members of the needle thread storage device 110, the upper looper thread storage device 120, and the lower looper thread storage device 130 are connected to the needle drive rod 5, and the pair of needle thread guides 54
a, 54b, upper looper thread guides 55a, 55b, and lower looper thread guides 56a, 56b are respectively fixed to thread guide mounting arms (the same shape as the thread guide mounting arm 528), and each thread guide mounting arm is connected to a connecting arm (connection arm). 532) (the same shape as the sewing thread amount adjusting arm 527). If the sewing thread amount adjusting arm is connected to the continuous link 95, the pair of needle thread guides 54 can be operated in accordance with the operation of the feed stitch adjusting dial 930.
a, 54b, upper looper thread guides 55a, 55b, and lower looper thread guides 56a, 56b can be changed in height position.
【００５５】さらに、一対の針糸案内５４ａ、５４ｂを
布厚調節連動手段７００に連結させる。この場合におい
ても、針糸蓄糸器１１０の手繰部材を針駆動ロッド５に
連結させ、また、一対の針糸案内５４ａ、５４ｂを糸案
内取付腕（糸案内取付腕５２８と同形状）に固定させ、
糸案内取付腕を連結腕（連結腕５３２と同形状）を介し
て縫糸量調節腕（縫糸量調節腕５２７と同形状）に連結
させる。この縫糸量調節腕を調節リンク７０６に連結さ
せれば布押え１０５０による布厚に応じて一対の針糸案
内５４ａ、５４ｂの高さ位置を変化させることができ
る。Further, the pair of needle thread guides 54a and 54b are connected to the cloth thickness adjustment interlocking means 700. Also in this case, the hand threading member of the needle thread storage device 110 is connected to the needle drive rod 5, and the pair of needle thread guides 54a and 54b are fixed to the thread guide mounting arm (having the same shape as the thread guide mounting arm 528). Let
The thread guide mounting arm is connected to the thread amount adjusting arm (same shape as the thread amount adjusting arm 527) via the connecting arm (same shape as the connecting arm 532). If this sewing thread amount adjusting arm is connected to the adjusting link 706, the height position of the pair of needle thread guides 54a and 54b can be changed according to the cloth thickness by the cloth presser 1050.
【００５６】なお、一対の糸案内を縫幅・縫目送り調節
手段や、布厚・縫目送り調節連動手段に連結させてもよ
い。これにより、縫幅・縫目送り調節手段や、布厚・縫
目送り調節連動手段のそれぞれの調節部の操作に応じて
一対の糸案内の高さ位置を変化させることができる。ま
た、本実施例においてはミシンの糸供給装置を１本針３
本糸オーバロックミシンに適用させていたが、これに限
らず、本縫いミシンにも適用させることができる。The pair of thread guides may be connected to a sewing width / stitch feed adjusting means or a cloth thickness / stitch feed adjusting interlocking means. Thereby, the height position of the pair of thread guides can be changed in accordance with the operation of the respective adjusting portions of the sewing width / stitch feed adjusting means and the cloth thickness / stitch feed adjusting interlocking means. Further, in this embodiment, the thread supply device of the sewing machine is a single needle 3
Although the present invention has been applied to a main thread overlock sewing machine, the present invention is not limited to this, and may be applied to a lockstitch sewing machine.
【００５７】[0057]
【発明の効果】以上、説明したように、本発明のミシン
の糸供給装置によれば、縫目形成装置に連動させて上流
側把持器、下流側把持器および手繰部材を駆動すること
ができるので、糸調子作業を行わずに適正な糸調子を得
ることができる。これにより、糸の太さ、撚り、染色、
伸縮性の糸（ウーリー糸）など、従来の糸調子における
変動要素に関係なく縫目を形成することができるので、
未熟練者においても多様な縫製条件に対応して高品質な
縫目を得ることができる。即ち、縫製作業が非常に容易
となる。さらに、把持器による糸の保持などの駆動をす
べて機械的な機構のみで行っているので、電気的な制御
を一切不要とし、ミシンの機構を簡略化することがで
き、また組立の容易化、低コスト化を図ることができ
る。さらに、普通ロック縫時と巻ロック縫時とでは蓄糸
量を異ならせて普通ロック縫時と巻ロック縫時にそれぞ
れ対応することができる。As described above, according to the thread supply device of the sewing machine of the present invention, the upstream gripper, the downstream gripper, and the hand-pulling member can be driven in conjunction with the stitch forming device. Therefore, an appropriate thread tension can be obtained without performing the thread tension operation. By this, the thickness of the thread, twist, dyeing,
Since seams can be formed regardless of the variable factors in the conventional thread tension, such as stretchable threads (woolly threads),
Even an unskilled person can obtain a high-quality seam corresponding to various sewing conditions. That is, the sewing work becomes very easy. Furthermore, since all driving such as holding of the thread by the gripper is performed only by a mechanical mechanism, no electrical control is required, and the mechanism of the sewing machine can be simplified, and assembling can be simplified. Cost reduction can be achieved. Further, the thread storage amount is made different between the normal lock sewing and the winding lock sewing, so that the normal lock sewing and the winding lock sewing can be respectively performed.
【図１】本発明のミシンの糸供給装置が適用されるオー
バロックミシンを示す全体斜視図。FIG. 1 is an overall perspective view showing an overlock sewing machine to which a thread supply device for a sewing machine according to the present invention is applied.
【図２】図１のオーバロックミシンの上ルーパおよび下
ルーパを駆動させるための機構を示す斜視図。FIG. 2 is a perspective view showing a mechanism for driving an upper looper and a lower looper of the overlock sewing machine in FIG. 1;
【図３】図１のオーバロックミシンの縫目送り調節部の
機構を示す斜視図。FIG. 3 is a perspective view showing a mechanism of a stitch feed adjusting section of the overlock sewing machine of FIG. 1;
【図４】図１のオーバロックミシンの縫幅調節部の機構
を示す分解斜視図。FIG. 4 is an exploded perspective view showing a mechanism of a sewing width adjusting unit of the overlock sewing machine of FIG. 1;
【図５】本発明のミシンの糸供給装置が適用されるオー
バロックミシンを示す外観斜視図。FIG. 5 is an external perspective view showing an overlock sewing machine to which the sewing machine thread supply device of the present invention is applied.
【図６】本発明のミシンの糸供給装置の上流側把持器、
下流側把持器および蓄糸器を示す図で、（ａ）は全体斜
視図、（ｂ）はこれらを駆動するための駆動機構の斜視
図。FIG. 6 is an upstream gripper of the thread supply device of the sewing machine of the present invention;
3A and 3B are views showing a downstream gripper and a yarn accumulator, wherein FIG. 3A is an overall perspective view, and FIG. 3B is a perspective view of a drive mechanism for driving these.
【図７】本発明のミシンの糸供給装置の上流側把持器を
示す図で、（ａ）は断面図、（ｂ）は分解斜視図。7A and 7B are diagrams showing an upstream gripper of the thread supply device of the sewing machine of the present invention, wherein FIG. 7A is a cross-sectional view, and FIG. 7B is an exploded perspective view.
【図８】本発明のミシンの糸供給装置の下流側把持器を
示す図で、（ａ）は断面図、（ｂ）は分解斜視図。FIGS. 8A and 8B are views showing a downstream gripper of the sewing machine thread supply device of the present invention, wherein FIG. 8A is a sectional view and FIG. 8B is an exploded perspective view.
【図９】本発明のミシンの糸供給装置の各手繰部材と、
縫幅調節連動手段、縫目送り調節連動手段および布厚調
節連動手段との関係を示す斜視図。FIG. 9 shows each hand-moving member of the thread supply device of the sewing machine of the present invention;
FIG. 5 is a perspective view showing a relationship among a sewing width adjustment interlocking unit, a stitch feed adjustment interlocking unit, and a cloth thickness adjustment interlocking unit.
【図１０】本発明のミシンの糸供給装置の縫目送り調節
連動手段を示す詳細図。FIG. 10 is a detailed view showing a stitch feed adjustment interlocking means of the thread supply device of the sewing machine of the present invention.
【図１１】本発明のミシンの糸供給装置の縫目送り調節
連動手段を示す分解斜視図。FIG. 11 is an exploded perspective view showing a stitch feed adjustment interlocking means of the thread supply device of the sewing machine of the present invention.
【図１２】本発明のミシンの糸供給装置の切替機構を示
す詳細図で、（ａ）は巻ロック縫いの状態の図、（ｂ）
は普通ロック縫いの状態の図。12A and 12B are detailed views showing a switching mechanism of the thread supply device of the sewing machine according to the present invention, wherein FIG.
Is a diagram of a state of ordinary lock stitching.
【図１３】本発明のミシンの糸供給装置の切替機構を示
す分解斜視図。FIG. 13 is an exploded perspective view showing a switching mechanism of the thread supply device of the sewing machine of the present invention.
【図１４】本発明のミシンの糸供給装置の縫幅調節連動
手段を示す詳細図。FIG. 14 is a detailed view showing a sewing width adjustment interlocking means of the thread supply device of the sewing machine of the present invention.
【図１５】本発明のミシンの糸供給装置の縫幅調節連動
手段を示す分解斜視図。FIG. 15 is an exploded perspective view showing a sewing width adjustment interlocking means of the thread supply device of the sewing machine of the present invention.
【図１６】本発明のミシンの糸供給装置の布厚調節連動
手段を示す詳細図。FIG. 16 is a detailed view showing a cloth thickness adjustment interlocking means of the thread supply device of the sewing machine of the present invention.
【図１７】本発明のミシンの糸供給装置の布送り時の状
態を示す図で、（ａ）は上面図、（ｂ）は（ａ）のＡ−
Ａ断面図。17A and 17B are diagrams showing a state of the thread supply device of the sewing machine according to the present invention at the time of cloth feeding, wherein FIG. 17A is a top view, and FIG.
A sectional drawing.
【図１８】本発明のミシンの糸供給装置の縫目形成時の
状態を示す図で、（ａ）は上面図、（ｂ）は（ａ）のＡ
−Ａ断面図。FIGS. 18A and 18B are views showing a state in which a thread is supplied to the thread supply device of the sewing machine according to the present invention, wherein FIG. 18A is a top view, and FIG.
-A sectional drawing.
【図１９】本発明のミシンの糸供給装置の縫幅調節連動
手段と手繰部材との関係を示す説明図で、（ａ）は縫幅
が広く設定されたときの図、（ｂ）は縫幅が狭く設定さ
れたときの図。19A and 19B are explanatory diagrams showing the relationship between the sewing width adjustment interlocking means of the thread supply device of the sewing machine of the present invention and the hand reeling member, wherein FIG. The figure when the width is set to be narrow.
【図２０】本発明のミシンの糸供給装置の布厚調節連動
手段と手繰部材との関係を示す説明図で、（ａ）は布厚
が薄いときの図、（ｂ）は布厚が厚いときの図。FIG. 20 is an explanatory view showing the relationship between the cloth thickness adjusting and interlocking means of the thread supply device of the sewing machine of the present invention and the hand reeling member. Figure of time.
【図２１】図１に示すオーバロックミシンによるオーバ
ロック縫目を示す説明図。FIG. 21 is an explanatory view showing an overlock stitch by the overlock sewing machine shown in FIG. 1;
【図２２】図１９のその他の実施例を示す説明図で、
（ａ）は縫幅が狭く設定されたときの図、（ｂ）は縫幅
が広く設定されたときの図。FIG. 22 is an explanatory view showing another embodiment of FIG. 19;
(A) is a diagram when the sewing width is set to be narrow, and (b) is a diagram when the sewing width is set to be wide.
３０・・・・布 １００・・・・縫目形成装置 ９・・・・針 ２７・・・・上ルーパ ２１・・・・下ルーパ ３１、３２、３３・・・・縫糸 ３１・・・・針糸 ３２・・・・上ルーパ糸 ３３・・・・下ルーパ糸 ５１、５２、５３・・・・糸巻 ４６・・・・圧縮バネ ４３・・・・加圧把持皿 ４４・・・・受け把持皿 ４０、５０、６０・・・・上流側把持器 ４０・・・・針糸上流側把持器 ５０・・・・上ルーパ糸上流側把持器 ６０・・・・下ルーパ糸上流側把持器 ７５・・・・圧縮バネ ７２・・・・加圧把持皿 ７３・・・・受け把持皿 ７０、８０、９０・・・・下流側把持器 ７０・・・・針糸下流側把持器 ８０・・・・上ルーパ糸下流側把持器 ９０・・・・下ルーパ糸下流側把持器 １１１、１２１、１２２・・・・手繰部材 １１１・・・・針糸手繰部材 １２１・・・・上ルーパ糸手繰部材 １２２・・・・下ルーパ糸手繰部材 ５５ａ、５５ｂ・・・・一対の糸案内 １０００・・・・縫幅調節部 ５００・・・・縫幅調節連動手段 ９００・・・・縫目送り調節部 ６００・・・・縫目送り調節連動手段 ７００・・・・布厚調節連動手段 ８００・・・・切替機構 30 Cloth 100 Stitch forming device 9 Needle 27 Upper looper 21 Lower looper 31, 32, 33 ... Thread 31 ... Needle thread 32 Upper looper thread 33 Lower looper thread 51, 52, 53 Thread spool 46 Compression spring 43 Compressed gripping plate 44 Grip plate 40, 50, 60 ... Upstream gripper 40 ... Needle yarn upstream gripper 50 ... Upper looper yarn upstream gripper 60 ... Lower looper yarn upstream gripper 75 ··· Compression spring 72 ··· Pressurized holding plate 73 ··· Receiving holding plate 70,80,90 ··· Downstream side holding device 70 ··· Needle thread downstream side holding device 80 · ·········································································・ Needle thread reeling member 121 ・ ・ ・ ・ Upper looper thread reeling member 122 ・ ・ ・ ・ Lower looper thread reeling member 55a, 55b ・ ・ ・ ・ A pair of thread guides 1000 ・ ・ ・ ・ Sewing width adjustment part 500 ・ ・ ・ ・Sewing width adjustment interlocking means 900 seam feeding adjustment part 600 seam feeding adjustment interlocking means 700 cloth thickness adjustment interlocking means 800 switching mechanism
Claims (9)
置（１００）に縫糸（３１、３２、３３）を供給するミ
シンの糸供給装置であって、糸巻（５１、５２、５３）から給糸される前記縫糸を把
持し、前記縫目形成装置により縫目形成時に閉成され、
前記布の布送り時に開成され圧縮バネ（４６）が介在さ
れた加圧把持皿（４３）、受け把持皿（４４）から成る
上流側把持器（４０、５０、６０）と、 前記上流側把持器から導かれた前記縫糸を把持し、前記
縫目形成時に開成されて前記縫糸が前記縫目形成装置に
より引出され、前記布の布送り時に閉成され圧縮バネ
（７５）が介在された加圧把持皿（７２）、受け把持皿
（７３）から成る下流側把持器（７０、８０、９０）
と、 前記縫目形成装置と同期して駆動され、前記布の布送り
時に開成された前記上流側把持器および閉成された前記
下流側把持器間に延びる前記縫糸を前記縫目形成装置の
１縫目に必要な縫糸量として蓄糸し、前記縫目形成時に
放糸する手繰部材（１１１、１２１、１２２）とを備
え、 前記手繰部材を前記上流側把持器および前記下流側把持
器間に給糸方向に隔置して配設された一対の糸案内（５
５ａ、５５ｂ）の間に配置したことを特徴とするミシン
の糸供給装置。 A thread supply device for a sewing machine for supplying a sewing thread (31, 32, 33) to a stitch forming device (100) for forming a stitch on a cloth (30), comprising a thread winding (51, 52, 53). ) From the sewing thread supplied from
Holding at the time of seam formation by the seam forming device,
The cloth is opened when the cloth is fed, and a compression spring (46) is interposed.
Pressure tray (43), receiving tray (44)
An upstream gripper (40, 50, 60); grips the suture guided from the upstream gripper;
The sewing thread is opened at the time of seam formation and the sewing thread is sent to the seam forming device.
The compression spring is pulled out and closed when the cloth is fed.
(75) interposed pressure gripping pan (72), receiving gripping pan
Downstream gripper (70, 80, 90) comprising (73)
And driven in synchronism with the stitch forming apparatus to feed the cloth
Sometimes the upstream gripper opened and the closed gripper closed
The sewing thread extending between the downstream grippers is used for the stitch forming device.
Storing the necessary amount of thread for the first stitch
And a hand-rolling member (111, 121, 122) for releasing the yarn.
The hand gripping member is gripped by the upstream gripper and the downstream gripper.
A pair of yarn guides (5
Sewing machine characterized by being arranged between 5a and 55b)
Yarn feeder.
０００）の操作に応じ変化する１縫目に必要な縫糸量に000) to change the amount of thread required for the first stitch
対応して前記手繰部材を連動させて駆動する縫幅調節連A sewing width adjusting unit which drives the corresponding hand member in conjunction with the sewing width adjusting unit;
動手段（５００）を前記手繰部材に連結したことを特徴A moving means (500) is connected to the hand-moving member.
とする請求項１記載のミシンの糸供給装置。The thread supply device for a sewing machine according to claim 1, wherein
（９００）の操作に応じ変化する１1 that changes according to the operation of (900) 縫目に必要な縫糸量Needle thread amount for seam
に対応して前記手繰部材を連動させて駆動する縫目送りStitch feed that drives the hand-operated member in conjunction with
調節連動手段（６００）を前記手繰部材に連結したことConnecting the adjusting interlocking means (600) to the hand-moving member;
を特徴とする請求項１記載のミシンの糸供給装置。The thread supply device for a sewing machine according to claim 1, wherein:
厚に応じ変化する１縫目に必要な縫糸量に対応して前記According to the amount of thread required for the first stitch that varies according to the thickness,
手繰部材を連動させて駆動する布厚調節連動手段（７０The cloth thickness adjustment interlocking means (70
０）を前記手繰部材に連結したことを特徴とする請求項2. The method according to claim 1, wherein the first member is connected to the hand-moving member.
１記載のミシンの糸供給装置。2. The thread supply device for a sewing machine according to claim 1.
０００）の操作に応じ変化する１縫目に必要な縫糸量に000) to change the amount of thread required for the first stitch
対応して前記手繰部材を連動させて駆動する縫幅調節連A sewing width adjusting unit which drives the corresponding hand member in conjunction with the sewing width adjusting unit;
動手段（５００）を前記一対の糸案内に連結したことをThat the moving means (500) is connected to the pair of thread guides.
特徴とする請求項１記載のミシンの糸供給装置。The thread supply device for a sewing machine according to claim 1, wherein:
（９００）の操作に応じ変化する１縫目に必要な縫糸量Needle thread amount required for the first stitch that changes according to the operation of (900)
に対応して前記手繰部材を連動させて駆動する縫目送りStitch feed that drives the hand-operated member in conjunction with
調節連動手段（６００）を前記一対の糸案内に連結したAdjustment interlocking means (600) is connected to the pair of thread guides
ことを特徴とする請求項１記載のミシンの糸供給装置。The thread supply device for a sewing machine according to claim 1, wherein:
厚に応じ変化する１縫目に必要な縫糸量に対応して前記According to the amount of thread required for the first stitch that varies according to the thickness,
手繰部材を連動させて駆動する布厚調節連動手段（７０The cloth thickness adjustment interlocking means (70
０）を一対の糸案内に連結したことを特徴とする請求項And (0) connected to a pair of thread guides.
１記載のミシンの糸供給装置。2. The thread supply device for a sewing machine according to claim 1.
置（１００）の針（９）、上ルーパ（２７）、下ルーパNeedle (9), upper looper (27), lower looper
（２１）に針糸（３１）、上ルーパ糸（３２）、下ルー(21) Needle thread (31), upper looper thread (32), lower thread
パ糸（３３）を供給するオーバーロックミシンの糸供給Thread supply for overlock sewing machine that supplies the thread (33)
装置であって、A device, 糸巻（５１、５２、５３）からそれぞれ給糸される前記The yarns respectively supplied from the pegs (51, 52, 53)
針糸、前記上ルーパ糸、前記下ルーパ糸を把持し、前記Grasping the needle thread, the upper looper thread, and the lower looper thread,
縫目形成装置により縫目形成時に閉成され、前Closed when forming the seam by the seam forming device 記布の布Writing cloth
送り時に開成され圧縮バネ（４６）が介在された加圧把A pressurizing bag opened at the time of feeding and having a compression spring (46) interposed
持皿（４３）、受け把持皿（４４）から成る針糸上流側Needle thread upstream consisting of holding tray (43) and receiving gripping tray (44)
把持器（４０）、上ルーパ糸上流側把持器（５０）、下Gripper (40), upper looper yarn upstream gripper (50), lower
ルーパ糸上流側把持器（６０）と、A looper yarn upstream gripper (60); 前記針糸上流側把持器、前記上ルーパ糸上流側把持器、The needle thread upstream gripper, the upper looper thread upstream gripper,
前記下ルーパ糸上流側把持器からそれぞれ導かれた前記The lower looper yarn upstream gripper respectively led from the gripper
針糸、前記上ルーパ糸、前記下ルーパ糸を把持し、前記Grasping the needle thread, the upper looper thread, and the lower looper thread,
縫目形成時に開成されて前記針糸、前記上ルーパ糸、前The needle thread, the upper looper thread,
記下ルーパ糸が前記縫目形成装置により引出され、前記The lower looper thread is pulled out by the stitch forming device,
布の布送り時に閉成され圧縮バネ（７５）が介在されたClosed when cloth is fed, and compression spring (75) is interposed
加圧把持皿（７２）、受け把持皿（７３）から成る針糸Needle thread consisting of a pressure gripping tray (72) and a receiving gripping tray (73)
下流側把持器（７０）、上ルーパ糸下流側把持器（８Downstream gripper (70), upper looper yarn downstream gripper (8
０）、下ルーパ糸下流側把持器（９０）と、0), a lower looper yarn downstream gripper (90), 前記針、前記上ルーパ、前記下ルーパと同期してそれぞIn synchronization with the needle, the upper looper, and the lower looper
れ駆動され、前記布の布送り時に開成された前記針糸上On the needle thread opened when the cloth is fed.
流側把持器、前記上ルーパ糸上流側把持器、前記下ルーFlow side gripper, Upper looper yarn upstream gripper, Lower loop
パ糸上流側把持器および閉成された前記針糸下流側把持Thread upstream gripper and closed needle downstream grip
器、前記上ルーパ糸下流側把持器、前記下ルーパ糸下流Container, the upper looper yarn downstream gripper, the lower looper yarn downstream
側把持器間にそれぞれ延びる前記針糸、前記上ルーパThe needle thread and the upper looper respectively extending between side grippers
糸、前記下ルーパ糸を前記縫目形成装置の１縫目にそれThread, the lower looper thread to the first stitch of the stitch forming apparatus
ぞれ必要な縫糸量として蓄糸し、前記縫目形成時に放糸Threads are stored as the required amount of sewing thread and released when forming the stitches.
する針糸手繰部材（１１１）、上ルーパ糸手繰部材（１Needle threading member (111), upper looper thread threading member (1
２１）、下ルーパ糸手繰部材（１２２）とを備え、21) and a lower looper thread hand reeling member (122). 前記針糸手繰部材、前記上ルーパ糸手繰部材、前記下ルThe needle thread reeling member, the upper looper thread reeling member, the lower loop
ーパ糸手繰部材を前記針糸上流側把持器、上ルーパ糸上Move the looper thread handling member on the needle thread upstream gripper, upper looper thread.
流側把持器、下ルーパ糸上流側把持器および前記針糸下Flow side gripper, lower looper yarn upstream side gripper and below the needle thread
流側把持器、前記上ルーパ糸下流側把持器、前記下ルーFlow side gripper, the upper looper yarn downstream gripper, the lower loop
パ糸下流側把持器間に給糸方向に隔置して配設された一One of the yarns disposed in the yarn feeding direction between the yarn downstream grippers.
対の糸案内（５５ａ、５５ｂ）の間にぞれぞれ配置したArranged between the pair of thread guides (55a, 55b)
ことを特徴とするオーバーロックミシンの糸供給装置。A thread supply device for an overlock sewing machine.
置（１００）の針（９）、上ルーパ（２７）、下ルーパNeedle (9), upper looper (27), lower looper
（２１）に針糸（３１）、上ルーパ糸（３２）、下ルー(21) Needle thread (31), upper looper thread (32), lower thread
パ糸（３３）を供給するオーバーロックミシンの糸供給Thread supply for overlock sewing machine that supplies the thread (33)
装置であって、A device, 糸巻（５１、５２、５３）からそれぞれ給糸される前記The yarns respectively supplied from the pegs (51, 52, 53)
針糸、前記上ルーパ糸、前記下ルーパ糸を把持し、前記Grasping the needle thread, the upper looper thread, and the lower looper thread,
縫目形成装置により縫目形成時に閉成され、前記布の布Closing the stitch by the stitch forming apparatus,
送り時に開成され圧縮バネ（４６）が介在された加圧把A pressurizing bag opened at the time of feeding and having a compression spring (46) interposed
持皿（４３）、Holding plate (43), 受け把持皿（４４）から成る針糸上流側Needle yarn upstream side comprising a receiving gripping plate (44)
把持器（４０）、上ルーパ糸上流側把持器（５０）、下Gripper (40), upper looper yarn upstream gripper (50), lower
ルーパ糸上流側把持器（６０）と、A looper yarn upstream gripper (60); 前記針糸上流側把持器、前記上ルーパ糸上流側把持器、The needle thread upstream gripper, the upper looper thread upstream gripper,
前記下ルーパ糸上流側把持器からそれぞれ導かれた前記The lower looper yarn upstream gripper respectively led from the gripper
針糸、前記上ルーパ糸、前記下ルーパ糸を把持し、前記Grasping the needle thread, the upper looper thread, and the lower looper thread,
縫目形成時に開成されて前記針糸、前記上ルーパ糸、前The needle thread, the upper looper thread,
記下ルーパ糸が前記縫目形成装置により引出され、前記The lower looper thread is pulled out by the stitch forming device,
布の布送り時に閉成され圧縮バネ（７５）が介在されたClosed when cloth is fed, and compression spring (75) is interposed
加圧把持皿（７２）、受け把持皿（７３）から成る針糸Needle thread consisting of a pressure gripping tray (72) and a receiving gripping tray (73)
下流側把持器（７０）、上ルーパ糸下流側把持器（８Downstream gripper (70), upper looper yarn downstream gripper (8
０）、下ルーパ糸下流側把持器（９０）と、0), a lower looper yarn downstream gripper (90), 前記針、前記上ルーパ、前記下ルーパと同期してそれぞIn synchronization with the needle, the upper looper, and the lower looper
れ駆動され、前記布の布送り時に開成された前記針糸上On the needle thread opened when the cloth is fed.
流側把持器、前記上ルーパ糸上流側把持器、前記下ルーFlow side gripper, Upper looper yarn upstream gripper, Lower loop
パ糸上流側把持器および閉成された前記針糸下流側把持Thread upstream gripper and closed needle downstream grip
器、前記上ルーパ糸下流側把持器、前記下ルーパ糸下流Container, the upper looper yarn downstream gripper, the lower looper yarn downstream
側把持器間にそれぞれ延びる前記針糸、前記上ルーパThe needle thread and the upper looper respectively extending between side grippers
糸、前記下ルーパ糸を前記縫目形成装置の１縫目にそれThread, the lower looper thread to the first stitch of the stitch forming apparatus
ぞれ必要な縫糸量として蓄糸し、前記縫目形成時に放糸Threads are stored as the required amount of sewing thread and released when forming the stitches.
する針糸手繰部材（１１１）、上ルーパ糸手繰部材（１Needle threading member (111), upper looper thread threading member (1
２１）、下ルーパ糸手繰部材（１２２）とを備え、21) and a lower looper thread hand reeling member (122). 前記針糸手繰部材、前記上ルーパ糸手繰部材、前記下ルThe needle thread reeling member, the upper looper thread reeling member, the lower loop
ーパ糸手繰部材を前記針糸上流側把持器、上ルーパ糸上Move the looper thread handling member on the needle thread upstream gripper, upper looper thread.
流側把持器、下ルーパ糸上流側把持器および前記針糸下Flow side gripper, lower looper yarn upstream side gripper and below the needle thread
流側把持器、前記上ルーパ糸下流側把持器、前記下ルーFlow side gripper, the upper looper yarn downstream gripper, the lower loop
パ糸下流側把持器間に給糸方向に隔置して配設された一One of the yarns disposed in the yarn feeding direction between the yarn downstream grippers.
対の糸案内（５５ａ、５５ｂ）の間にぞれぞれ配置し、Arranged between the pair of thread guides (55a, 55b), 普通ロック縫時には前記針糸手繰部材を前記針に同期しAt the time of normal lock sewing, the needle thread reeling member is synchronized with the needle.
て駆動し、前記上ルーパ糸手繰部材および前記下ルーパAnd the upper looper thread reeling member and the lower looper
糸手繰部材を前記上ルーパおよび前記下ルーパの何れかEither the upper looper or the lower looper
一方に同期して駆動し、巻ロック縫時には前記針糸手繰It is driven in synchronization with one side, and during winding lock sewing, the needle thread
部材および前記下ルーパ糸手繰部材を前記針に同期してThe member and the lower looper thread handing member are synchronized with the needle.
駆動し、前記上ルーパ糸手繰部材を前記上ルーパに同期Drives and synchronizes the upper looper thread reeling member with the upper looper
して駆動する切替機構（８００）を備えたことを特徴とAnd a switching mechanism (800) that is driven by
するオーバーロックミシンの糸供給装置。Overlock sewing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17248395A JP2911389B2 (en) | 1995-07-07 | 1995-07-07 | Sewing machine thread feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17248395A JP2911389B2 (en) | 1995-07-07 | 1995-07-07 | Sewing machine thread feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0919583A JPH0919583A (en) | 1997-01-21 |
| JP2911389B2 true JP2911389B2 (en) | 1999-06-23 |
Family
ID=15942833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17248395A Expired - Fee Related JP2911389B2 (en) | 1995-07-07 | 1995-07-07 | Sewing machine thread feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2911389B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3877829B2 (en) * | 1997-03-31 | 2007-02-07 | 株式会社鈴木製作所 | Yarn supply device for overlock sewing machine |
| US8794167B2 (en) * | 2010-07-28 | 2014-08-05 | Nsd Corporation | Sewing machine |
| KR101780853B1 (en) | 2011-09-26 | 2017-09-21 | 엔에스디 가부시끼가이샤 | Sewing machine |
| CN109667074B (en) * | 2019-01-11 | 2023-06-13 | 宁波三合鑫自动化有限公司 | Edge covering cylinder driving mechanism and working method thereof |
-
1995
- 1995-07-07 JP JP17248395A patent/JP2911389B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0919583A (en) | 1997-01-21 |
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