JPS6297593A - Sewing machine equipped with yarn gripper - Google Patents
Sewing machine equipped with yarn gripperInfo
- Publication number
- JPS6297593A JPS6297593A JP23683685A JP23683685A JPS6297593A JP S6297593 A JPS6297593 A JP S6297593A JP 23683685 A JP23683685 A JP 23683685A JP 23683685 A JP23683685 A JP 23683685A JP S6297593 A JPS6297593 A JP S6297593A
- Authority
- JP
- Japan
- Prior art keywords
- thread
- needle
- sewing machine
- loop
- needle thread
- 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.)
- Granted
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は針と天秤との間における上糸を掴むための糸
掴み装置を備えたミシンに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a sewing machine equipped with a thread gripping device for gripping an upper thread between a needle and a thread take-up.
（従来技術及び発明が解決しようとする問題点）一般に
、ミシンによって縫製を行う場合、第１針目の縫目を確
実に形成するために、上糸の自由端が針の巨大から所定
量、垂れ下がった状態で縫製が開始されるようになって
いる。(Prior Art and Problems to be Solved by the Invention) Generally, when sewing with a sewing machine, the free end of the needle thread hangs down a predetermined amount from the large needle in order to ensure the formation of the first stitch. Sewing is started when the
ところが、この従来のミシンにおいては、加工布の上面
に上糸の自由端が露出されたままの状態で、その自由端
を跨ぐようにして第２針目以降の縫目が形成され、それ
により自由端が加工布上面に縫付けられることがあり、
この場合には見栄えが悪くなって商品価値の低下を招く
おそれがある。However, in this conventional sewing machine, the free end of the needle thread is left exposed on the upper surface of the workpiece cloth, and the stitches from the second stitch onward are formed by straddling the free end, and as a result, the free end of the upper thread remains exposed. The edges may be sewn to the top of the work fabric,
In this case, the appearance may become poor and the product value may decrease.
また、縫製終了後に前記加工布上の上糸自由端を切り取
ることも可能であるが、その作業は非常に面倒で手間が
かかり、作業能率の低下を招くおそれがある。It is also possible to cut off the free end of the needle thread on the work cloth after sewing is completed, but this work is extremely troublesome and time-consuming, and may lead to a decrease in work efficiency.
（発明の目的）
この発明は上記の事情に鑑みてなされたものであって、
その目的はｔａ製製作待時おいて上糸の自由端が加工布
の上面に露出した状態で加工布上面に縫付けられること
を未然に防止することができる糸掴み装置を備えたミシ
ンを提供することにある。(Object of the invention) This invention was made in view of the above circumstances, and
The purpose is to provide a sewing machine equipped with a thread gripping device that can prevent the free end of the upper thread from being sewn onto the upper surface of the workpiece cloth while the free end of the upper thread is exposed on the upper surface of the workpiece cloth while waiting for TA production. It's about doing.
（問題点を解決するための手段及び作用）上記の目的を
達成するために、この発明においては、針と天秤との間
における上糸を掴むための糸掴み装置を備えたミシンに
おいて、前記糸掴み装置は、第１針目の上糸ループの釜
による捕捉時近傍から前記上糸ループの拡大終了時近傍
までの間にわたって前記上糸を掴むように構成されてい
る。(Means and operations for solving the problem) In order to achieve the above object, the present invention provides a sewing machine equipped with a thread gripping device for gripping the needle thread between the needle and the thread take-up. The gripping device is configured to grip the upper thread from around the time when the upper thread loop of the first stitch is captured by the hook to around when the upper thread loop finishes expanding.
従って、前記第１針目の上糸ループの拡大時には針より
自由端例の上糸が消費され、上糸の自由端が加工布上面
に露出することがない。Therefore, when the upper thread loop of the first needle is enlarged, the upper thread of the free end is consumed from the needle, and the free end of the upper thread is not exposed on the upper surface of the work cloth.
（実施例）
以下、この発明を具体化した刺繍ミシンの一実施例を図
面に従って説明する。第１図に示すように、ミシンフレ
ーム１のアーム部１ａには針棒２が上下動可能に支承さ
れ、その下端部には針３及び糸案内４が装着されている
。この針棒２ば第３図に示すミシンモータ５によって回
転駆動される主軸（図示しない）の回転に伴って上下動
される。(Embodiment) An embodiment of an embroidery sewing machine embodying the present invention will be described below with reference to the drawings. As shown in FIG. 1, a needle bar 2 is supported on an arm portion 1a of a sewing machine frame 1 so as to be movable up and down, and a needle 3 and a thread guide 4 are attached to the lower end thereof. This needle bar 2 is moved up and down as a main shaft (not shown) is rotationally driven by a sewing machine motor 5 shown in FIG.
ミシンフレーム１のベッド部ｌｂ内には前記針３の上下
動に伴って形成される上糸Ｔのループを捕捉するための
釜６が一軸線の周りで回転可能に支持されている。A hook 6 for catching a loop of upper thread T formed as the needle 3 moves up and down is rotatably supported around an axis within the bed section 1b of the sewing machine frame 1.
前記アーム部１ａの前面には上糸供給源から針３に供給
される上糸Ｔの経路上に位置する周知の生糸調子器７及
び側糸調子器８が取付けられるとともに、複数の糸案内
体９が取付けられている。A well-known raw thread tension device 7 and a side thread tension device 8, which are located on the path of the needle thread T supplied from the needle thread supply source to the needle 3, are attached to the front surface of the arm portion 1a, as well as a plurality of thread guide bodies. 9 is installed.
さらに、前記アーム部ｌａ内には周知の天秤機構により
針棒２と同期して作動される天秤１０が設けられていて
、その先端がアーム部１ａ前面に突出するようになって
いる。そして、前記上糸Ｔは、各糸調子器７，８、各糸
案内体９、天秤１０を介して針３に供給される。この針
３の上下動によって形成される上糸ループは釜６の剣先
にて捕捉された後、その釜６によって拡大され、次いで
前記天秤ｌＯによって引き上げられる。そして、その上
糸ループとの係合により釜６内のボビンから下糸が繰り
出されることにより前記ベッド部ｌｂ上の加工布に本縫
縫目が形成されるようになっている。Furthermore, a take-up lever 10 is provided in the arm la and is operated in synchronization with the needle bar 2 by a well-known take-up mechanism, and its tip protrudes to the front surface of the arm la. The upper thread T is then supplied to the needle 3 via each thread tension device 7, 8, each thread guide 9, and thread take-up 10. The needle thread loop formed by the vertical movement of the needle 3 is captured by the tip of the hook 6, expanded by the hook 6, and then pulled up by the thread take-up lO. The bobbin thread is drawn out from the bobbin in the hook 6 by engagement with the needle thread loop, thereby forming a lock stitch in the work cloth on the bed portion lb.
なお、前記ベッド部１ｂ上の加工布は周知の加工布保持
枠（図示しない）によって保持された状態で、前記針３
の上下動に同期して前後左右に移動され、加工布に送り
が付与される。そして、前記針３、釜６及び加工布保持
枠の協働により加工布に刺繍が施される。Note that the work cloth on the bed portion 1b is held by a well-known work cloth holding frame (not shown), and the needle 3
It is moved forward, backward, left and right in synchronization with the vertical movement of the cloth, and feed is applied to the workpiece cloth. Then, the needle 3, hook 6, and work cloth holding frame cooperate to embroidery the work cloth.
次に、糸掴み装置を第１図及び第２図（ａ）。Next, the thread gripping device is shown in FIGS. 1 and 2 (a).
（ｂ）に基づいて説明する。前記針棒２と天秤１０との
間の上糸経路上においてアーム部１ａの下部前面には断
面はぼコ字状をなすとともに、前方及び左右両側方へ開
口する上糸受は体１１がその中央部１１ａにて取付けら
れ、その上下両板部１１ｂ、ｌｌｃには透孔１２がそれ
ぞれ形成されている。これら各透孔１２には上糸Ｔが挿
通されるようになっている。The explanation will be based on (b). On the needle thread path between the needle bar 2 and the thread take-up lever 10, the lower front surface of the arm portion 1a has a cross-section shaped like a U-shape, and the body 11 of the needle thread receiver is open to the front and both left and right sides. It is attached at the central portion 11a, and through holes 12 are formed in both the upper and lower plate portions 11b and llc, respectively. An upper thread T is inserted through each of these through holes 12.
前記上糸受は体１１に近接してアーム部１ａの外側面に
は電磁石１３が装着され、そのプランジャ１４の先端に
は上糸押え体１５がその基端にて固着されるとともに、
その先端が前記上糸受は体１１の上下両板部１１ｂ、Ｉ
ＩＣ間まで延びている。そして、電磁石１３の消磁時に
はプランジャ１４が突出位置に配置されて、第２図（ａ
）に示すように上糸押え体１５の先端が上糸受は体１１
の中央部１１ａから前方へ離間する不作用位置に配置さ
れ、上糸Ｔから離税される。また、電磁石１３の励磁時
にはプランジャ１４が没入位置に配置されて、第２図（
ｂ）に示すように上糸押え体１５の先端が上糸受は体１
１の中央部１１ａに接近する作用位置に配置され、その
上糸押え体１５と上糸受は体１１との間で上糸Ｔが掴ま
れるようになっている。この時、上糸Ｔは上糸受は体１
１を通過不能である。The upper thread receiver is close to the body 11, and an electromagnet 13 is attached to the outer surface of the arm portion 1a, and an upper thread presser body 15 is fixed to the tip of the plunger 14 at its base end.
The tip of the upper thread receiver is the upper and lower plate portions 11b and I of the body 11.
It extends between the ICs. When the electromagnet 13 is demagnetized, the plunger 14 is placed in the protruding position, as shown in FIG.
), the tip of the upper thread presser body 15 is connected to the upper thread receiver body 11.
The needle thread T is disposed at a non-active position spaced forward from the center portion 11a of the needle thread T, and is separated from the upper thread T. Further, when the electromagnet 13 is excited, the plunger 14 is placed in the retracted position, as shown in FIG.
As shown in b), the tip of the upper thread presser 15 is located at the upper thread holder 1.
The needle thread presser body 15 and the needle thread receiver are arranged at an operating position close to the center portion 11a of the needle thread member 1, and the needle thread T is gripped between the needle thread presser body 15 and the needle thread receiver body 11. At this time, the upper thread T is
1 cannot be passed.
次にこの実施例におけるミシンの電気的構成を第３図及
び第４図に従って説明すると、起動スイッチ１６は足踏
みペダル（図示しない）に連係され、その足踏みペダル
の踏み込み操作に伴い、その起動スイッチ１６から中央
処理装置（ＣＰ Ｕ）１７に起動信号が出力される。前
記アーム部ｌａ内には、前記釜６による上糸ループの捕
捉タイミング（この時、針３は最下点かられずかに上昇
した位置にある）に応じた第１作励信号と、捕捉された
上糸ループの拡大がほぼ終了するタイミング（この時、
針３は最上点近くにある）に応じた第２作励信号とを前
記主軸（図示しない）の回転に伴ってそれぞれ発生する
ための作動信号発生器１８が配設され、その両作動信号
が前記ＣＰＵ１７に入力される。なお、この作動信号発
生器１８は主軸に一体回転可能に装着された信号担持盤
と、その信号担持盤に光を照射してその信号担持盤から
の反射光に応じた作動信号を出力する役、受光器とから
構成されている。Next, the electrical configuration of the sewing machine in this embodiment will be explained with reference to FIGS. 3 and 4. The start switch 16 is linked to a foot pedal (not shown), and as the foot pedal is depressed, the start switch 16 An activation signal is output from the CPU 17 to the central processing unit (CPU) 17. A first actuation signal corresponding to the timing at which the needle thread loop is captured by the hook 6 (at this time, the needle 3 is at a position slightly raised from the lowest point) and a captured signal are contained in the arm portion la. The timing when the expansion of the needle thread loop is almost completed (at this time,
An actuation signal generator 18 is provided to generate a second actuation signal corresponding to the position of the needle (the needle 3 is near the highest point) as the main shaft (not shown) rotates, and both actuation signals are generated. It is input to the CPU 17. The actuation signal generator 18 has a signal carrying board that is rotatably mounted on the main shaft, and a function of irradiating the signal carrying board with light and outputting an actuation signal according to the reflected light from the signal carrying board. , and a photoreceiver.
前記起動スイッチ１６から起動信号が入力された時、Ｃ
ＰＵＩ ７は速度制御回路１９に低速運転指令信号を出
力し、それに基づき速度制御回路１９はミシンモータ５
を低速で回転させる。ミシンの低速運転状態で、ＣＰＵ
Ｉ ７は作動信号発生器１８からの最初の第１作励信号
の発生に応答して負荷ドライブ回路２０を介して電磁石
１３に駆動信号を出力するとともに、第２作励信号の発
生に応答してその駆動信号の出力を停止するように構成
されている。When a start signal is input from the start switch 16, C
PUI 7 outputs a low speed operation command signal to speed control circuit 19, and based on this, speed control circuit 19 controls sewing machine motor 5.
Rotate at low speed. When the sewing machine is running at low speed, the CPU
I 7 outputs a drive signal to the electromagnet 13 via the load drive circuit 20 in response to the generation of the first first actuation signal from the actuation signal generator 18, and also responds to the generation of the second actuation signal. The drive signal is configured to stop outputting the drive signal.
すなわち、第１針目の上糸ループが釜６によって捕捉さ
れた時近傍からその上糸ループの拡大がほぼ終了するま
での間、電磁石１３は励磁される。That is, the electromagnet 13 is energized from around the time when the needle thread loop of the first stitch is captured by the hook 6 until the enlargement of the needle thread loop is almost completed.
そして、前記作動信号発生器１８から２番目の第１作励
信号が入力された時、ＣＰＵ１７は速度制御回路１９に
対して低速運転指令信号の代わりに高速運転指令信号を
出力するとともに、以後に発生される第１．第２作励信
号には応答しないように構成されている。そして、前記
高速運転指令信号に基づき、速度制御回路１９はミシン
モータ５を高速で回転させる。When the second first activation signal is input from the activation signal generator 18, the CPU 17 outputs a high-speed operation command signal instead of the low-speed operation command signal to the speed control circuit 19, and thereafter The first occurrence. The second actuation signal is configured not to respond to the second actuation signal. Then, based on the high speed operation command signal, the speed control circuit 19 rotates the sewing machine motor 5 at high speed.
次に、上記のように構成されたミシンの作用を説明する
。さて、第１図は糸供給源からの上糸Ｔが各糸調子器７
，８、糸案内９、天秤１０及び上糸受は体１１を介して
針３に挿通されるとともに、電磁石１３が消磁状態に保
持され、上糸押え体１５が不作用位置に配置された状態
を示すものである。Next, the operation of the sewing machine configured as described above will be explained. Now, in FIG. 1, the upper thread T from the thread supply source is applied to each thread tension device 7.
, 8, the thread guide 9, the thread take-up 10, and the needle thread receiver are inserted into the needle 3 via the body 11, the electromagnet 13 is held in a demagnetized state, and the needle thread presser body 15 is placed in a non-operating position. This shows that.
この状態で、足踏みペダルが操作されて起動スイッチ１
６から起動信号が出力されると、ミシンモータ５が低速
で駆動されてミシンの低速運転が開始される。そして、
針３が下動され、第１針目の上糸ループが釜６によって
捕捉される時、そのタイミングに応じて作動信号発生器
１８から第１作励信号が出力される。この信号に基づき
、電磁石１３が励磁され、それにより第２図（ｂ）に示
すように上糸押え体１５が上糸受は体１１に向かって移
動されて両者１５．１１間で上糸Ｔが掴まれる。In this state, the foot pedal is operated and the start switch 1
When a start signal is output from 6, the sewing machine motor 5 is driven at a low speed and the sewing machine starts to operate at a low speed. and,
When the needle 3 is moved downward and the needle thread loop of the first stitch is captured by the hook 6, the first actuation signal is output from the actuation signal generator 18 in accordance with the timing. Based on this signal, the electromagnet 13 is energized, and as a result, the upper thread presser 15 is moved toward the upper thread receiver 11, and the upper thread T is moved between the two 15 and 11. is grabbed.
引き続くミシンの運転に基づき、釜６によって上糸ルー
プが拡大される。この時、前記上糸Ｔはその供給源側に
おいて上糸受は体１１と上糸押え体１５との間に挾持さ
れているため、供給源側から上糸Ｔが繰り出されること
はなく、上糸Ｔの自由端側か加工布の表面側に引き込ま
れ、上糸ループを拡大するために消費される。As the sewing machine continues to operate, the hook 6 enlarges the needle thread loop. At this time, the upper thread T is held between the body 11 and the upper thread presser body 15 on the supply source side, so the upper thread T is not let out from the supply source side, and It is drawn into the free end side of the thread T or the surface side of the work cloth and is consumed to enlarge the needle thread loop.
そして、前記上糸ループの拡大がほぼ終了した時、上糸
Ｔの自由端側か全て加工布裏面側に懐は出て下方にたれ
さがるとともに、前記電磁石駆動信号の出力が停止され
て電磁石１３が消磁され、上糸押え体１５が第２図（ａ
）に示す不作用位置まで復帰移動される。この時、第１
針目の縫目の結節点は形成されず、いわゆる目飛びの状
態になっている。上記の動作は針３が一上下往復動され
る間に遂行される。また、引き続くミシンの運転に伴い
、第２針目の針３の上下往復動が開始されて、その途中
で作動信号発生器１８から第１作励信号が出力されると
、ミシンモータ５が高速で駆動され、ミシンが高速運転
状態に切替えられる。When the expansion of the upper thread loop is almost completed, the upper thread T is fully exposed to the back side of the work cloth and hangs downward, and the output of the electromagnet drive signal is stopped and the electromagnet 13 is demagnetized, and the needle thread presser 15 moves as shown in FIG.
) is returned to the inactive position shown in the figure. At this time, the first
No knot points are formed between the stitches, resulting in a so-called skipped stitch state. The above operation is performed while the needle 3 is reciprocating up and down. Further, as the sewing machine continues to operate, when the needle 3 of the second stitch starts to move up and down and the first actuation signal is output from the actuation signal generator 18, the sewing machine motor 5 starts moving at high speed. The sewing machine is switched to high-speed operation mode.
この時、電磁石１３は励磁されないので、上糸Ｔは供給
源側から上糸ループの拡大に伴って供給され、引き続く
天秤１０の糸引上げ作用により本縫縫目が形成される。At this time, since the electromagnet 13 is not excited, the needle thread T is supplied from the supply source side as the needle thread loop expands, and a lock stitch is formed by the subsequent thread pulling action of the thread take-up lever 10.
上記のように、この実施例では第１針目において上糸Ｔ
の自由端が上糸ループを拡大するために消費されて加工
布の下面に引き込まれるため、その自由端が加工布の上
面に露出することがなく、そのため、引き続くミシンの
運転によって上糸Ｔの自由端が加工布上面に縫付けられ
ることもすく。As mentioned above, in this embodiment, the upper thread T
Since the free end is consumed to enlarge the upper thread loop and is drawn into the lower surface of the work cloth, the free end is not exposed on the upper surface of the work cloth, so that the upper thread T is It is also easy to sew the free end to the top surface of the work fabric.
奇麗な縫目を形成することができる。Beautiful seams can be formed.
なお、この発明は前記実施例に限定されるものではな（
、刺繍ミシン以外の各種のミシンに具体化することも可
能である。Note that this invention is not limited to the above embodiments (
, it is also possible to embody it in various sewing machines other than embroidery sewing machines.
（発明の効果）
以上詳述したように、この発明は縫製作業時において上
糸が加工布の上面に露出した状態で加工布上面に縫付け
られることを未然に防止することができるという優れた
効果を奏する。(Effects of the Invention) As detailed above, the present invention has an excellent advantage in that it can prevent the needle thread from being sewn onto the upper surface of the work cloth in a state where it is exposed on the upper surface of the work cloth during sewing work. be effective.
第１図はこの発明を具体化したミシンの部分斜視図、第
２図（ａ）、 （ｂ）は糸掴み装置の作動状態を示す
部分断面図、第３図はミシンの電気ブは上糸である。
特許出願人 ブラザー工業株式会社代理人
弁理士 恩１）博宣第３図
第４図FIG. 1 is a partial perspective view of a sewing machine embodying the present invention, FIGS. 2(a) and (b) are partial sectional views showing the operating state of the thread gripping device, and FIG. 3 is a partial perspective view of a sewing machine embodying the present invention. It is. Patent applicant Brother Industries, Ltd. Agent
Patent Attorney On 1) Hironobu Figure 3 Figure 4
Claims (1)
を掴むための糸掴み装置を備えたミシンにおいて、 前記糸掴み装置は、第１針目の上糸ループの釜（６）に
よる捕捉時近傍から前記上糸ループの拡大終了時近傍ま
での間にわたって前記上糸（Ｔ）を掴むように構成され
ており、 前記第１針目の上糸ループの拡大時には針（３）より自
由端側の上糸（Ｔ）が消費されることを特徴とする糸掴
み装置を備えたミシン。[Claims] 1. Needle thread (T) between needle (3) and thread take-up (10)
In a sewing machine equipped with a thread gripping device for gripping the needle thread loop, the thread gripping device grips the needle thread loop from the vicinity of the time when the needle thread loop of the first stitch is captured by the hook (6) to the vicinity of the time when the expansion of the needle thread loop ends. A thread gripping device configured to grip the needle thread (T), wherein the needle thread (T) on the free end side of the needle (3) is consumed when the needle thread loop of the first stitch is expanded. Sewing machine with equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60236836A JPH0632726B2 (en) | 1985-10-23 | 1985-10-23 | Sewing machine with a thread gripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60236836A JPH0632726B2 (en) | 1985-10-23 | 1985-10-23 | Sewing machine with a thread gripping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6297593A true JPS6297593A (en) | 1987-05-07 |
| JPH0632726B2 JPH0632726B2 (en) | 1994-05-02 |
Family
ID=17006503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60236836A Expired - Lifetime JPH0632726B2 (en) | 1985-10-23 | 1985-10-23 | Sewing machine with a thread gripping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632726B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04272787A (en) * | 1991-02-27 | 1992-09-29 | Juki Corp | Stretching device for sewing thread of sewing machine |
| JP2006175128A (en) * | 2004-12-24 | 2006-07-06 | Juki Corp | Thread guide of sewing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54152551A (en) * | 1978-05-19 | 1979-11-30 | Brother Ind Ltd | Upper thread controller for sewing machine |
| JPS5784089A (en) * | 1980-11-14 | 1982-05-26 | Yoshida Kogyo Kk | Preventive device for defective cotton tightening in sewing machine |
| JPS60173156A (en) * | 1984-02-15 | 1985-09-06 | 株式会社バルダン | Sewing machine |
-
1985
- 1985-10-23 JP JP60236836A patent/JPH0632726B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54152551A (en) * | 1978-05-19 | 1979-11-30 | Brother Ind Ltd | Upper thread controller for sewing machine |
| JPS5784089A (en) * | 1980-11-14 | 1982-05-26 | Yoshida Kogyo Kk | Preventive device for defective cotton tightening in sewing machine |
| JPS60173156A (en) * | 1984-02-15 | 1985-09-06 | 株式会社バルダン | Sewing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04272787A (en) * | 1991-02-27 | 1992-09-29 | Juki Corp | Stretching device for sewing thread of sewing machine |
| JP2006175128A (en) * | 2004-12-24 | 2006-07-06 | Juki Corp | Thread guide of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0632726B2 (en) | 1994-05-02 |
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