JPH10235054A - Cloth folded back guide device of sewing machine - Google Patents

Cloth folded back guide device of sewing machine

Info

Publication number
JPH10235054A
JPH10235054A JP7880997A JP7880997A JPH10235054A JP H10235054 A JPH10235054 A JP H10235054A JP 7880997 A JP7880997 A JP 7880997A JP 7880997 A JP7880997 A JP 7880997A JP H10235054 A JPH10235054 A JP H10235054A
Authority
JP
Japan
Prior art keywords
fabric
cloth
air
folding
sewing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7880997A
Other languages
Japanese (ja)
Inventor
Takashi Mizusaki
隆 水崎
Akio Yanaga
明夫 彌永
Seiji Hashimoto
誠治 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamato Sewing Machine Mfg Co Ltd
Original Assignee
Yamato Sewing Machine Mfg Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamato Sewing Machine Mfg Co Ltd filed Critical Yamato Sewing Machine Mfg Co Ltd
Priority to JP7880997A priority Critical patent/JPH10235054A/en
Publication of JPH10235054A publication Critical patent/JPH10235054A/en
Pending legal-status Critical Current

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  • Sewing Machines And Sewing (AREA)

Abstract

PROBLEM TO BE SOLVED: To allow even an inexperienced operator to easily and surely perform sewing while cloth is in a predetermined folded back state by making effective use of ejected air for stably keeping a folded back part in the cloth in its folded back state, and automating the operation of folding down the end of the cloth for formation of the folded back part and the operation of holding the folded down condition. SOLUTION: A cloth folded back part feeding and guiding part 6 which feeds and guides a folded back part Wa in cloth W to a needle location is provided with a hem-oriented air exhaust nozzle part 12 which keeps the fold Wa folded by ejecting air toward the edge We of the fold Wa in the cloth W transferred there, and an auxiliary air exhaust nozzle part which folds the end of the cloth W down by ejecting air diagonally forward and downward toward the end of the cloth W just before the cloth W is transferred is installed near an entrance to the cloth folded back feeding and guiding part 6.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はミシンの生地折返し
案内装置に関するもので、詳しくは、例えば下着等の衣
類の袖口や裾口などの縫製用生地の適当幅の端部を針落
ち部の手前で下側に折返し、その生地の折返し部を生地
の裏面に重合させた状態で針落ち部にまで送って所定の
縫製を行なう際、上記生地の折返し部が定規との摩擦な
どによってずれ動いて、縫い外れや縫い皺などを生じる
ことのないように生地の折返し部を所定の折返し状態に
保持させて送り案内するように構成されたミシンの生地
折返し案内装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fabric folding guide device for a sewing machine, and more particularly, to a sewing material such as a cuff or a hem of a garment such as underwear. When the fabric is turned over to the needle dropping section with the folded portion of the fabric superimposed on the back of the fabric and the specified sewing is performed, the folded portion of the fabric shifts due to friction with a ruler and the like. The present invention relates to a fabric folding guide device for a sewing machine configured to feed and guide a folded portion of a fabric in a predetermined folded state so as not to cause sewing stitches and wrinkles.

【0002】[0002]

【従来の技術】この種のミシンの生地折返し案内装置と
して、従来、実公昭62−43504号公報等に開示さ
れているように、生地の折返し部を針落ち部まで送り案
内するために針落ち部の手前側に設置された定規の略つ
の字状屈曲案内面に、コンプレッサなどのエア源に配管
接続されたエア噴出口部を開口させ、このエア噴出口部
から生地の折返し部の端縁部に向けて縫製進行方向に対
し直交する方向にエアを噴出させることによって、生地
の折返し部を所定の折返し状態に安定よく保持させるよ
うにしたものが知られている。
2. Description of the Related Art As this type of sewing machine fabric folding guide device, a needle dropping device for feeding and guiding a folded portion of a fabric to a needle dropping portion as disclosed in Japanese Utility Model Publication No. Sho 62-43504 has been conventionally used. An air outlet port connected to an air source such as a compressor is opened on the substantially bent-shaped guide surface of the ruler installed on the front side of the section, and the edge of the folded back portion of the fabric from this air outlet section There is known a structure in which air is blown toward a portion in a direction perpendicular to a sewing progress direction to stably hold a folded portion of a fabric in a predetermined folded state.

【0003】[0003]

【発明が解決しようとする課題】上記構成の先行技術に
よると、エア噴出口部から噴出されるエアによって生地
の折返し部に引き伸し力が働くことになり、この生地の
折返し部を定規との摩擦などによってずれ動かされるこ
となく、所定の折返し状態に安定保持して針落ち部まで
送り案内し、縫い外れや縫い皺などの発生を防止するこ
とが可能である。ところで、上記先行技術においては、
上記のように噴出エアにより折返し状態が安定保持され
る折返し部を形成するに当たって、縫製開始段階で生地
の縫い始め端側の端部を人手によって下側に折り込むと
いった面倒でかつ熟練を要する作業が必要であった。ま
た、縫製中は常に生地端部を下側へ折り込むように人手
を添えておくという面倒な作業を必要とする等の問題が
あった。
According to the prior art having the above construction, the air blown out from the air ejection port exerts a stretching force on the folded portion of the fabric, and the folded portion of the fabric is defined as a ruler. It is possible to stably maintain a predetermined folded state and feed and guide the needle to the needle dropping portion without being displaced and moved by friction or the like, thereby preventing the occurrence of stitching or wrinkling. By the way, in the above prior art,
In forming the folded portion in which the folded state is stably maintained by the blowing air as described above, a laborious and skillful operation such as manually folding the end of the sewing start end side of the fabric at the sewing start stage downward is performed. Was needed. In addition, there is a problem that a troublesome operation such as manually attaching the edge of the fabric to the lower side during sewing is required.

【0004】本発明は上記のような実情に鑑みてなされ
たもので、生地の折返し部の折返し状態を安定保持する
ために用いられる噴出エアを有効に活用して、折返し部
を形成するための生地端部の下側への折り込み及びその
折り込み状態の保持を自動化し、未熟練者であっても縫
い外れや縫い皺などを生じることなく、所定の折返し状
態での縫製を容易、確実に行なうことができるミシンの
生地折返し案内装置を提供することを目的としている。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and is intended to form a folded portion by effectively utilizing the blowing air used to stably maintain the folded state of the folded portion of the fabric. Automatically folds and holds the folded state below the edge of the fabric, and easily and reliably performs sewing in a predetermined folded state without causing unsewn or stitched wrinkles even by unskilled persons. It is an object of the present invention to provide a sewing machine fabric folding guide device which can be used.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するため
に、請求項1の発明に係るミシンの生地折返し案内装置
は、ミシンの針落ち部の手前側に設置され、端部が下側
に折返された状態で縫製方向に送られる生地の折返し部
を上記針落ち部まで送り案内する生地折返し部送り案内
部と、この生地折返し部送り案内部により送り案内され
る生地の折返し部の端縁部に向けて縫製進行方向に対し
直交する方向にエアを噴出して該生地の折返し部の折返
し状態を保持する折返し保持用エア噴出口部と、上記生
地折返し部送り案内部への入口付近に配置され、その生
地折返し部送り案内部に移行する直前の生地の端部に対
してエアを噴出して該生地の端部を下方に折り込む生地
端部折込み用エア噴出口部とを備えていることを特徴と
するものである。
According to a first aspect of the present invention, there is provided a sewing machine fabric folding guide device according to the first aspect of the present invention, which is installed in front of a needle drop portion of the sewing machine, and has an end portion located on a lower side. A dough return portion feed guide portion that feeds and guides a turn portion of the dough fed in the sewing direction in the folded state to the needle drop portion, and an edge of a dough turn portion of the dough fed and guided by the dough turn portion feed guide portion Air return port for ejecting air in a direction perpendicular to the sewing progress direction toward the sewing portion to maintain the folded state of the folded portion of the fabric, and near the entrance to the fabric folded portion feed guide section. A dough-end folding air ejection port for ejecting air to the end of the dough immediately before shifting to the dough-folding-part feeding guide section and folding the dough end downward. It is characterized by the following.

【0006】上記のような構成の請求項1に記載の発明
によれば、生地の縫い始め端を該縫い始め側の端部が下
側に折返される状態にして生地折返し部送り案内部にセ
ットした上で、ミシンを作動開始するとともに各エア噴
出部からエアを噴出させることによって、上記生地折返
し部送り案内部に移入されている生地の折返し部はその
端縁部に向けて噴出されるエアにより所定の折返し状態
に安定よく保持されて縫製進行方向に送り案内される一
方、上記生地折返し部送り案内部の入口付近にある生地
の端部は該生地の端部に対し斜め手前下方向に向けて噴
出されるエアにより下方へ折り込まれながら生地折返し
部送り案内部に移行され、その生地折返し部送り案内部
に移入した段階で所定の折返し部が形成されることにな
る。このように、生地端部の下側への折り込みによる折
返し部の形成及びその形成された折返し部の折返し状態
の安定保持作用を共に噴出エアによって連続自動的に行
なえるために、人手による折り込み作業が不要になり、
縫製作業の省力化及び能率向上を図ることが可能であ
る。
According to the first aspect of the present invention, the sewing start end of the cloth is set to a state in which the end on the sewing start side is folded downward, and the cloth folding section feed guide section is formed. After setting, the sewing machine starts to operate and the air is blown out from each of the air blowing portions, whereby the folded portion of the fabric that has been transferred to the fabric folding portion feed guide portion is blown toward the edge. While being stably held in the predetermined folded state by the air and being fed and guided in the sewing proceeding direction, the end of the cloth near the entrance of the above-mentioned cloth folded portion feed guide section is obliquely downward toward the end of the cloth. While being folded downward by the air ejected toward the fabric, the material is transferred to the dough-turning-part feeding guide portion, and a predetermined turning portion is formed at the stage of being transferred to the dough-turning-portion feed guide portion. In this way, the formation of the folded portion by folding down the fabric end and the operation of stably maintaining the folded state of the formed folded portion can be continuously and automatically performed by the blowing air. Is unnecessary,
It is possible to save labor and improve efficiency of sewing work.

【0007】上記請求項1に記載の発明に係るミシンの
生地折返し案内装置において、請求項2に記載したよう
に、上記生地端部折込み用エア噴出部の位置を前後、上
下及び左右にそれぞれ調節自在に構成することによっ
て、縫製対象となる生地の柔軟性、可撓性などの性質、
厚み、折込み量に応じて噴出エアが生地に対して作用す
る位置や引き伸し力を適正に調整させて、いかなる生地
であっても、噴出エアによる折込み機能を適確に発揮さ
せることができる。
According to the first aspect of the present invention, in the sewing machine fabric folding guide device, as described in the second aspect, the position of the fabric end folding air ejection portion is adjusted to the front and rear, up and down, and left and right, respectively. By freely configuring, the properties of the fabric to be sewn, such as flexibility and flexibility,
By properly adjusting the position where the blown air acts on the fabric and the stretching force according to the thickness and the amount of folding, the folding function by the blown air can be properly exhibited for any fabric. .

【0008】[0008]

【発明の実施の形態】以下、本発明の実施の形態を図面
にもとづいて説明する。図1は本発明に係るミシンの生
地折返し案内装置の要部を示す概略斜視図、図2は要部
の拡大正面図である。これら図1及び図2において、1
はミシンアーム(図示省略する)の先端部に上下に往復
運動可能に支持されている針棒2の下端部に取り付けら
れている針であり、これら針1が下降時に貫通状態に落
ち込む針落ち部を有する針板3が、ルーパ、布送り機構
等の縫いを構成するための部品(周知であるため、詳細
な説明および図示は省略する)を収納するミシンベッド
4上に水平姿勢で固定されている。5は上記ミシンアー
ムの先端部に昇降操作自在に支持されている押え金であ
る。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view showing a main part of a cloth folding guide device for a sewing machine according to the present invention, and FIG. 2 is an enlarged front view of the main part. In FIGS. 1 and 2, 1
Are needles attached to the lower end of a needle bar 2 supported reciprocally up and down at the tip of a sewing machine arm (not shown). Is fixed in a horizontal posture on a sewing machine bed 4 for storing parts for sewing, such as a looper and a cloth feed mechanism (because it is well known, detailed description and illustration are omitted). I have. Reference numeral 5 denotes a presser foot supported at the tip of the sewing machine arm so as to be able to move up and down.

【0009】6は上記針落ち部及び押え金5の手前側に
設置された生地折返し部送り案内部で、この生地折返し
部送り案内部6は、図2に明示されているように、縫製
対象生地Wを水平姿勢に載置可能で、その左端部が取付
台7に固定された平板状案内板8の右端、すなわち、縫
製進行方向aに平行な遊端縁部8aとこの案内板8の遊
端縁部8aに適当間隔を隔てて平行状に対向位置する略
つの字形状の屈曲案内面9aを有し固定取付台10上に
上記縫製進行方向aに対し直交する左右方向に摺動可能
な連結板23に固定された定規9における上記の略つの
字形状屈曲案内面9aとから構成されており、端部が下
側に折返された状態の生地Wの屈曲部Wbを左右から挟
んで縫製進行方向aに送られる生地Wの折返し部Waを
上記針落ち部及び押え金5まで送り案内するように形成
されている。
Numeral 6 denotes a cloth-turning-section feed guide section provided on the front side of the needle drop section and the presser foot 5, and the cloth-turning-section feed guide section 6 is, as clearly shown in FIG. The cloth W can be placed in a horizontal position, and the left end thereof is fixed to the mounting base 7 at the right end of the flat guide plate 8, that is, at the free end edge portion 8 a parallel to the sewing advance direction a and the guide plate 8. It has a substantially square-shaped bent guide surface 9a which is opposed to the free end edge 8a in parallel at an appropriate interval and is slidable on the fixed mounting base 10 in the left-right direction perpendicular to the sewing progress direction a. And the above-mentioned substantially two-shaped bent guide surface 9a of the ruler 9 fixed to the connecting plate 23, and sandwiches the bent portion Wb of the cloth W in a state where the end is folded downward from the left and right. The folded portion Wa of the fabric W sent in the sewing traveling direction a It is formed so as to guide the feed to Ekin 5.

【0010】上記生地折返し部送り案内部6を構成する
案内板8は、上記取付台7と固定取付台10との間に介
設されたシリンダ11を介して上記縫製進行方向aに対
して直交する方向bに往復摺動駆動可能に構成されてお
り、この案内板8の上記方向bへの往復摺動により、そ
の遊端縁部8aを上記定規9の屈曲案内面9aに接近さ
せた送り案内作用状態と屈曲案内面9aから離間させた
送り案内非作用状態とに切換え可能に構成している。
A guide plate 8 which constitutes the cloth feeding portion feed guide portion 6 is orthogonal to the sewing traveling direction a via a cylinder 11 provided between the mounting base 7 and the fixed mounting base 10. The guide plate 8 is reciprocally slidable in the direction b, and the free end edge 8a of the guide plate 8 is moved closer to the bent guide surface 9a of the ruler 9 by reciprocating sliding in the direction b. It is configured to be able to switch between a guide operation state and a feed guide non-operation state separated from the bending guide surface 9a.

【0011】12は生地Wの折返し部Waの折返し状態
を保持するための折返し保持用(以下、ヘム用と称す
る)エア噴出口部であって、上記生地折返し部送り案内
部6により送り案内される生地Wの折返し部Waの端縁
部Weに向けて縫製進行方向aに対し直交する方向にエ
アを噴出するように、二つのヘム用エア噴出口部(図で
は1つのみを示している)12が上記生地折返し部送り
案内部6を構成する案内板8の屈曲案内面9aに縫製進
行方向aに並列されて開口されている。これらヘム用エ
ア噴出口部12に接続された各エアパイプ13は二股状
継手14及び後述するエア噴出速度調整器(以下、スピ
コンと称する)15を経てコンプレッサー等のエア源
(図示省略する)に連通接続されている。
Reference numeral 12 denotes a folded and held (hereinafter referred to as "hem") air ejection port for maintaining the folded state of the folded portion Wa of the fabric W, which is fed and guided by the fabric folded portion feed guide section 6. Two hem air outlets (only one is shown in the figure) so as to blow air toward the edge We of the folded portion Wa of the fabric W in a direction perpendicular to the sewing progress direction a. ) 12 are opened in the bending guide surface 9a of the guide plate 8 constituting the fabric folded portion feed guide portion 6 in parallel with the sewing progress direction a. Each of the air pipes 13 connected to these hem air outlets 12 communicates with an air source (not shown) such as a compressor via a forked joint 14 and an air ejection speed adjuster (hereinafter referred to as a speed controller) 15 described later. It is connected.

【0012】16は生地端部折込み用(以下、補助用と
称する)エア噴出口部であって、上記生地折返し部送り
案内部6への入口付近に設置されて、その生地折返し部
送り案内部6に移行する直前の生地Wの端部に対して斜
め手前下方向に向けてエアを噴出することにより、生地
Wの端部を下方へ折り込むように作用する。17はこの
補助用エア噴出口部16の手前で、かつ、該補助用エア
噴出口部16よりも左側寄り位置に設置されたカール矯
正用エア噴出口部であって、上記生地折返し部送り案内
部6に移行する前の生地Wの端縁部Weに向けてエアを
噴出することにより、生地Wの折返し部Waとなる端部
分に発生するカールを矯正するように作用する。これら
補助用エア噴出口部16及びカール矯正用エア噴出口部
17にそれぞれ接続されたエアパイプ18及び19は二
股状継手20及び上記スピコン15を経て上記と同一の
エア源に接続されており、上記共通のスピコン15を介
して各エア噴出口部12,16,17からのエア噴出速
度が同時に調整可能とされている。
Numeral 16 denotes an air ejection port for folding the fabric end (hereinafter referred to as an auxiliary), which is installed near the entrance to the fabric folding section feed guide section 6 and is provided with the fabric folding section feed guide section. By blowing the air obliquely downward toward the end of the cloth W just before shifting to 6, the cloth W acts to fold the end of the cloth W downward. Numeral 17 denotes a curl correction air ejection port located before the auxiliary air ejection port 16 and on the left side of the auxiliary air ejection port 16. By ejecting air toward the edge We of the cloth W before shifting to the section 6, the cloth W acts to correct the curl generated at the end of the cloth W which is to be the folded back portion Wa. The air pipes 18 and 19 connected to the auxiliary air ejection port 16 and the curl correction air ejection port 17, respectively, are connected to the same air source via the forked joint 20 and the speed controller 15 as described above. The air ejection speed from each of the air ejection ports 12, 16, and 17 can be simultaneously adjusted via the common speed controller 15.

【0013】そして、上記補助用エア噴出口部16に接
続されたエアパイプ18の途中にはパイプ軸線方向に直
交する方向の筒状調節部材21が貫通支持され、この調
節部材21がネジ25を介してその筒軸線の周りで回動
固定可能に構成されているとともに、この調節部材21
から縫製進行方向aに向けて延出した調節ロッド22が
上記連結板23の上面に固定された調節片24にネジ2
6を介して縫製進行方向aに沿って前後に摺動固定可能
に構成され、さらに、上記連結板23がその側面板部2
3aに形成の長孔27とネジ28を介して上記固定取付
台10に対して左右に摺動固定可能に構成されており、
これら調節部材21の筒軸線周りの回動固定と調節ロッ
ド22の前後摺動固定と連結板23の左右摺動固定とに
よって上記補助用エア噴出口部16の位置が前後、上下
及び左右にそれぞれ調節自在とされている。
A cylindrical adjusting member 21 extending in a direction perpendicular to the pipe axis direction is penetrated and supported in the middle of the air pipe 18 connected to the auxiliary air jetting portion 16, and the adjusting member 21 is screwed through a screw 25. The adjustment member 21 is configured so as to be rotatable and fixed around the cylinder axis.
An adjusting rod 22 extending in the sewing advance direction a from a screw 2 is attached to an adjusting piece 24 fixed to the upper surface of the connecting plate 23.
6, and can be slidably fixed back and forth along the sewing progress direction a.
It is configured to be slidably fixed to the fixed mounting base 10 left and right through a long hole 27 and a screw 28 formed in 3a,
The position of the auxiliary air ejection port 16 is moved forward and backward, up and down, and left and right by the rotational fixing of the adjusting member 21 around the cylinder axis, the front and rear sliding fixing of the adjusting rod 22, and the left and right sliding fixing of the connecting plate 23, respectively. It is adjustable.

【0014】次に、上記のように構成された生地折返し
案内装置を有するミシンを用いてエンドレスの筒状縫製
生地を折返し縫製する動作について、図3のタイミング
チャートを参照して説明する。なお、図3に示す操作ペ
ダル、膝スイッチはミシンに装備されている公知のもの
である。
Next, an operation of folding and sewing an endless tubular sewing material using a sewing machine having a material folding guide device configured as described above will be described with reference to a timing chart of FIG. The operation pedal and the knee switch shown in FIG. 3 are known ones provided on the sewing machine.

【0015】まず、案内板8をその遊端縁部8aが定規
9の屈曲案内面9aに接近した送り案内作用状態に切換
えた上で押え金5を上昇させて、生地Wの縫い始め端側
の右端部を下側へ折返される状態にして生地折返し部送
り案内部6にセットする。このとき、各エア噴出部1
2,16,17からはそれぞれ所定の方向に向けてエア
が噴出されており、この噴出エアによって上記生地折返
し部送り案内部6にセットされた生地Wの縫い始め端側
の端部は、図2に示すような所定の折返し状態に折返さ
れることになる。
First, the guide plate 8 is switched to the feed guide action state in which the free end edge portion 8a of the guide plate 8 approaches the bent guide surface 9a of the ruler 9, and then the presser foot 5 is raised to start sewing the fabric W at the end of sewing. Is set in the dough-folding-section feed guide section 6 with its right end folded downward. At this time, each air ejection part 1
Air is spouted from each of the fabrics 2, 16, and 17 in a predetermined direction, and the end of the fabric W set on the fabric turn-up portion feed guide section 6 on the sewing start end side is shown in FIG. It will be folded back to a predetermined folded state as shown in FIG.

【0016】上記のセットが完了した図4の状態で、上
記押え金5を下降させた上、操作ペダルを踏み込んでミ
シンを作動させると、上記生地折返し部送り案内部6に
移入されている生地Wの折返し部Waはヘム用エア噴出
口部12からその端縁部Weに向けて噴出されるエアに
より所定の折返し状態に安定よく保持されて縫製進行方
向aに送り案内される一方、縫製の進行に伴って上記生
地折返し部送り案内部6の入口付近に次々と達する生地
Wの端部には補助用エア噴出口部16から該生地Wの端
部に対し斜め手前下方向に向けてエアが噴出されている
とともに、それよりも手前の生地Wの端縁部Weに向け
てもカール矯正用エア噴出口部17からエアが噴出され
ており、これによって、カールが矯正された生地Wの端
部が図5に示すように、下方へ確実、自動的に折り込ま
れながら上記生地折返し部送り案内部6に移行され、そ
の生地折返し部送り案内部6に移入した段階で所定の折
返し部Waが連続して形成されることになる。
In the state of FIG. 4 where the above-mentioned setting is completed, the presser foot 5 is lowered, and then the operation pedal is depressed to operate the sewing machine. The folded portion Wa of W is stably held in a predetermined folded state by air jetted from the hem air jet port portion 12 toward the end edge We and is fed and guided in the sewing advancing direction a. At the end of the dough W which reaches the vicinity of the entrance of the dough return portion feed guide portion 6 one after another as the traveling progresses, air is directed obliquely downward from the auxiliary air outlet 16 toward the end of the dough W. Is also ejected, and air is ejected from the curl correction air ejection port 17 toward the edge We of the cloth W in front of it, whereby the curl-corrected cloth W The ends are shown in Figure 5 Then, it is transferred to the dough-folding-section feed guide section 6 while being reliably and automatically folded downward, and at the stage when the dough-folding section feed guide section 6 is transferred, a predetermined turning section Wa is continuously formed. become.

【0017】そして、生地Wの縫い終り端に近付いて時
点で、上記操作ペダルを中立に戻して各エア噴出口部1
2,16,17からのエアの噴出をそれぞれ停止すると
ともに、膝スイッチをプッシュして上記案内板8をその
遊端縁部8aが定規9の屈曲案内面9aから離間した非
送り案内作用状態に切換え、その直後、再び操作ペダル
を踏み込んでミシンの作動を再開することで縫い終り端
の縫製を行なう。この縫い終り端の縫製時には上記ヘム
用エア噴出口部12からのエアの噴出を停止したまま、
補助用エア噴出口部16およびカール矯正用エア噴出口
部17からのエアの噴出を再開することで、縫い終り端
の折返し縫製が終了するまでの間の折り込みを保つ。
Then, when approaching the sewing end of the cloth W, the operation pedal is returned to the neutral position, and each air ejection port 1
At the same time, the ejection of air from 2, 16, and 17 is stopped, and the knee switch is pushed to bring the guide plate 8 into the non-feeding guide state in which the free end edge 8a is separated from the bent guide surface 9a of the ruler 9. After the change, the operation pedal is depressed again to restart the operation of the sewing machine, thereby performing the sewing at the end of the sewing. At the time of sewing at the sewing end end, the air ejection from the hem air ejection port 12 is stopped,
By restarting the ejection of air from the auxiliary air ejection port 16 and the curl correction air ejection port 17, the folding at the end of the sewing until the return sewing is completed is maintained.

【0018】上記のように、生地Wの端部の下側への折
り込みによる折返し部Waの形成及びその形成された折
返し部Waの折返し状態の安定保持作用が共に噴出エア
によって連続自動的に行なわれるために、人手による折
り込み作業が不要になり、縫製作業の省力化及び能率向
上を図ることが可能である。
As described above, the formation of the folded portion Wa by folding the end portion of the cloth W below and the operation of stably maintaining the folded state of the formed folded portion Wa are continuously and automatically performed by the jet air. This eliminates the need for manual folding work, and can save labor and improve efficiency of sewing work.

【0019】また、縫製対象となる生地Wの柔軟性、可
撓性などの性質、厚み、折込み量に応じて上記補助用エ
ア噴出口部16の位置を、予め前後、上下及び左右に調
節して噴出エアが生地Wに対して作用する位置や引き伸
し力を適正に調整しておくことによって、いかなる生地
Wであっても、噴出エアによる折込み機能を適確に発揮
させることが可能であり、また、スピコン15を介して
各噴出エアの噴出速度を縫製対象生地Wの性質に対応し
て予め調整しておくことによって、生地Wの性質に応じ
て折返し部Waの折返し状態の安定保持、生地端部折込
み、カール矯正の各作用を適正に行なわせることが可能
である。
The position of the auxiliary air ejection port 16 is adjusted in advance to the front and rear, up and down, and left and right in accordance with the properties such as the flexibility and flexibility of the cloth W to be sewn, the thickness, and the amount of folding. By properly adjusting the position at which the ejected air acts on the fabric W and the stretching force, the folding function by the ejected air can be properly exhibited for any fabric W. In addition, by adjusting the ejection speed of each ejection air via the speed controller 15 in advance in accordance with the properties of the fabric W to be sewn, the folded portion Wa can be stably maintained in a folded state in accordance with the properties of the fabric W. In addition, it is possible to properly perform the operations of folding the edge of the cloth and straightening the curl.

【0020】なお、上記実施の形態では、エンドレスの
筒状縫製生地を折返し縫製する場合の動作について説明
したが、非エンドレスで帯状の縫製生地の折返し縫製に
適用しても同様な機能を奏するものである。ただし、こ
の場合は、縫製途中で上記案内板8をその遊端縁部8a
が定規9の屈曲案内面9aから離間した非送り案内作用
状態に切換えたり、ヘム用エア噴出口部12からのエア
噴出を停止したりする必要はなく、縫製完了まで案内板
8を送り案内作用状態に、かつ、ヘム用エア噴出口部1
2からのエア噴出を保てばよい。
In the above-described embodiment, the operation in the case where the endless tubular sewing material is folded and sewn has been described. However, the same function can be obtained even when the present invention is applied to the non-endless and band-shaped sewing material. It is. In this case, however, the guide plate 8 is moved to its free end edge 8a during sewing.
It is not necessary to switch to the non-feeding guide operation state separated from the curved guide surface 9a of the ruler 9 or to stop the air ejection from the hem air ejection port 12, and the guide plate 8 is fed and guided until the sewing is completed. Hem air spout 1
What is necessary is just to keep the air ejection from 2.

【0021】[0021]

【発明の効果】以上のように、請求項1に記載の発明に
よれば、生地の折返し部の折返し状態を安定保持するた
めのエア噴出口部と同一のエア源に接続させて生地折返
し部送り案内部への入口付近に生地端部折込み用エア噴
出口部を設置することによって、生地に折返し部を形成
するための生地端部の下側への折り込み作用及びその折
り込み状態の安定保持作用を自動的かつ連続的に行なう
ことができるので、人手による折り込み作業が必要なく
なり、未熟練者であっても縫い外れや縫い皺などを生じ
ることなく、所定の折返し状態での縫製を容易、確実か
つ迅速に行なうことができるという効果を奏する。
As described above, according to the first aspect of the present invention, the fabric turning portion is connected to the same air source as the air outlet for stably maintaining the folded state of the fabric turning portion. By installing an air ejection port for folding the fabric end near the entrance to the feed guide section, the fabric is folded downward to form a folded portion on the fabric and the folded state is maintained stably. Can be performed automatically and continuously, so that manual folding work is not required, and even inexperienced persons can easily and reliably sew in a predetermined folded state without causing stitches or wrinkles. In addition, there is an effect that it can be performed quickly.

【0022】また、請求項2に記載の発明によれば、上
記請求項1に記載の発明の効果に加えて、縫製対象とな
る生地の柔軟性、可撓性などの性質、厚み、折込み量に
応じて噴出エアが生地に対して作用する位置や引き伸し
力を適正に調整可能で、いかなる生地であっても、噴出
エアによる折込み機能を適確に発揮させることができ
る。
According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, properties, such as flexibility and flexibility, thickness, and amount of folding of the fabric to be sewn are provided. Therefore, the position at which the ejected air acts on the fabric and the stretching force can be appropriately adjusted, and the folding function by the ejected air can be properly exhibited with any fabric.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係るミシンの生地折返し案内装置の要
部を示す概略斜視図である。
FIG. 1 is a schematic perspective view showing a main part of a cloth folding guide device of a sewing machine according to the present invention.

【図2】同上ミシンの生地折返し案内装置の要部の拡大
正面図である。
FIG. 2 is an enlarged front view of a main part of the dough folding guide device of the sewing machine.

【図3】同上ミシンによるエンドレス縫製生地の折返し
縫製動作を説明するタイミングチャートである。
FIG. 3 is a timing chart for explaining a folding sewing operation of the endless sewing cloth by the sewing machine.

【図4】折返し縫製動作開始時の生地の状態を示す要部
の概略斜視図である。
FIG. 4 is a schematic perspective view of a main part showing a state of the cloth at the start of the folding sewing operation.

【図5】折返し縫製動作途中の生地の状態を示す要部の
概略斜視図である。
FIG. 5 is a schematic perspective view of a main part showing a state of the fabric during the folding sewing operation.

【符号の説明】[Explanation of symbols]

6 生地折返し部送り案内部 8 平板状案内板 8a 8の遊端縁部 9 定規 9a 屈曲案内面 12 ヘム用エア噴出口部(折返し保持用エア噴出口
部) 15 スピコン(エア噴出速度調整器) 16 補助用エア噴出口部(生地端部折込み用エア噴出
口部) 17 カール矯正用エア噴出口部 W 生地 Wa 生地の折返し部
Reference Signs List 6 Feeding part for folded back portion 8 Flat guide plate 8a Free edge of 8 9 Ruler 9a Bend guide surface 12 Hem air outlet (return holding air outlet) 15 Speakon (air injection speed regulator) 16 Auxiliary air spout (fabric end folding air spout) 17 Curl straightening air spout W Fabric Wa Fabric folded back

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ミシンの針落ち部の手前側に設置され、
端部が下側に折返された状態で縫製方向に送られる生地
の折返し部を上記針落ち部まで送り案内する生地折返し
部送り案内部と、 この生地折返し部送り案内部により送り案内される生地
の折返し部の端縁部に向けて縫製進行方向に対し直交す
る方向にエアを噴出して該生地の折返し部の折返し状態
を保持する折返し保持用エア噴出口部と、 上記生地折返し部送り案内部への入口付近に配置され、
その生地折返し部送り案内部に移行する直前の生地の端
部に対してエアを噴出して該生地の端部を下方に折り込
む生地端部折込み用エア噴出口部とを、備えていること
を特徴とするミシンの生地折返し案内装置。
1. A sewing machine, which is installed in front of a needle drop portion of a sewing machine,
A dough-turning-part feed guide for feeding and guiding a turn-over portion of the dough fed in the sewing direction with the end turned down to the needle drop portion; a dough fed and guided by the dough-turning-part feed guide A fold-retaining air ejection port for blowing air in a direction perpendicular to the sewing progress direction toward the edge of the folded portion to maintain the folded state of the folded portion of the fabric; and the fabric folded portion feed guide. Located near the entrance to the department,
A fabric end folding air outlet for ejecting air to the end of the fabric immediately before shifting to the fabric folding portion feed guide section and folding the end of the fabric downward. Characteristic sewing machine fabric folding guide device.
【請求項2】 上記生地端部折込み用エア噴出口部の位
置が前後、上下及び左右にそれぞれ調節自在に構成され
ている請求項1に記載のミシンの生地折返し案内装置。
2. The dough folding guide device of the sewing machine according to claim 1, wherein the position of the dough end folding air ejection port is configured to be adjustable in front and rear, up and down, and left and right, respectively.
JP7880997A 1997-02-21 1997-02-21 Cloth folded back guide device of sewing machine Pending JPH10235054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7880997A JPH10235054A (en) 1997-02-21 1997-02-21 Cloth folded back guide device of sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7880997A JPH10235054A (en) 1997-02-21 1997-02-21 Cloth folded back guide device of sewing machine

Publications (1)

Publication Number Publication Date
JPH10235054A true JPH10235054A (en) 1998-09-08

Family

ID=13672181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7880997A Pending JPH10235054A (en) 1997-02-21 1997-02-21 Cloth folded back guide device of sewing machine

Country Status (1)

Country Link
JP (1) JPH10235054A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101824710A (en) * 2009-03-03 2010-09-08 大和缝纫机制造株式会社 Sewing machine cloth return guide device
CN103668806A (en) * 2012-09-18 2014-03-26 大和缝纫机制造株式会社 Hemming sewing machine
CN105463713A (en) * 2014-09-25 2016-04-06 大和缝纫机制造株式会社 Sewing machine
DE102015225830A1 (en) 2014-12-19 2016-06-23 Yamato Mishin Seizo K.K. Sewing machine for a hem
JP2016131632A (en) * 2015-01-16 2016-07-25 Juki株式会社 Side seam sewing machine
CN106149211A (en) * 2016-08-09 2016-11-23 孙丽君 A kind of Chinese knot sewing machine from ball of yarn to finished product
US9752261B2 (en) 2013-09-24 2017-09-05 Yamato Mishin Seizo Kabushiki Kaisha Cloth edge curl correction device
US10006158B2 (en) 2014-10-17 2018-06-26 Yamato Mishin Seizo Kabushiki Kaisha Sewing machine
TWI816839B (en) * 2018-07-24 2023-10-01 日商大和縫紉製造股份有限公司 Garment seam expanding device

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101824710A (en) * 2009-03-03 2010-09-08 大和缝纫机制造株式会社 Sewing machine cloth return guide device
CN103668806A (en) * 2012-09-18 2014-03-26 大和缝纫机制造株式会社 Hemming sewing machine
TWI626348B (en) * 2012-09-18 2018-06-11 大和縫紉製造股份有限公司 Overlock sewing machine
CN103668806B (en) * 2012-09-18 2017-09-08 大和缝纫机制造株式会社 Crimping sewing machine
US9752261B2 (en) 2013-09-24 2017-09-05 Yamato Mishin Seizo Kabushiki Kaisha Cloth edge curl correction device
CN105463713A (en) * 2014-09-25 2016-04-06 大和缝纫机制造株式会社 Sewing machine
JP2016064044A (en) * 2014-09-25 2016-04-28 ヤマトミシン製造株式会社 sewing machine
TWI648449B (en) * 2014-09-25 2019-01-21 大和縫紉機製造股份有限公司 Sewing machine
US10006158B2 (en) 2014-10-17 2018-06-26 Yamato Mishin Seizo Kabushiki Kaisha Sewing machine
DE102015225830A1 (en) 2014-12-19 2016-06-23 Yamato Mishin Seizo K.K. Sewing machine for a hem
US9631308B2 (en) 2014-12-19 2017-04-25 Yamato Mishin Seizo Kabushiki Kaisha Sewing machine for hem
JP2016116636A (en) * 2014-12-19 2016-06-30 ヤマトミシン製造株式会社 Blindstitch hemming sewing machine
CN105714481A (en) * 2014-12-19 2016-06-29 大和缝纫机制造株式会社 Sewing Machine for Hem
TWI675949B (en) * 2014-12-19 2019-11-01 日商大和縫紉機製造股份有限公司 Sewing machine for hem
CN105714481B (en) * 2014-12-19 2020-03-13 大和缝纫机制造株式会社 Hemming sewing machine
JP2016131632A (en) * 2015-01-16 2016-07-25 Juki株式会社 Side seam sewing machine
CN106149211A (en) * 2016-08-09 2016-11-23 孙丽君 A kind of Chinese knot sewing machine from ball of yarn to finished product
TWI816839B (en) * 2018-07-24 2023-10-01 日商大和縫紉製造股份有限公司 Garment seam expanding device

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