JPH0339189A - Throat plate for sewing-machine - Google Patents

Abstract

PURPOSE:To make it easy to accurately guide a position of cloth to be sewn to a first egress-ingress way, by a method wherein a guide groove in which the position of the cloth to be sewed is dropped and guided to the first egress- ingress way, is provided along the direction in which the cloth is fed by a feed dog, ranging from the operator side to the first egress-ingress way. CONSTITUTION:On a throat plate 2, a guide groove 13 in which a position of cloth C to be sewn is dropped and guided to a first egress-ingress way 4, is provided along the direction in which the cloth is fed by a feed dog 9, ranging from a cut part 12 on the operator side to the first egress-ingress way, and the edge of the cut part 12 is so chamfered that the inner wall of part of the guide groove 13 is continuously extended toward the operator side. The guide groove 13 is so formed that an inclination theta2 for a second inner wall 13B on the cloth end side is larger than an inclination theta1 for a first inner wall 13A on the cloth main body side, and thus it is formed lest both the location of a needle 5 for the first egress-ingress way 4 and the position of cloth to be sewed relatively deviate in the right and left directions. In this way, sewing is kept acculate and in good result.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ごシン針の第１出退通路及び送り歯の第２出
退通路を設けてあるミシンの針仮に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sewing machine needle holder provided with a first exit/retreat path for a sewing machine needle and a second exit/retract path for a feed dog.

（従来の技術） 従来の上記ミシンの針板は、前記第１出退通路の周りを
面一の平滑面に形威しであるだけであった。(Prior Art) The throat plate of the conventional sewing machine has only a flat, smooth surface surrounding the first exit/exit passage.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

しかし、針仮に載せた生地を、送り歯によって送り込み
ながら縫製するに伴って、生地の縫取予定箇所が、第１
出退通路に至るまでに、針板上面で左右にすべって、そ
の進行方向が不安定になりやすかった。そのために、特
に、裾引加工や口伏せ加工等においては、縫取予定箇所
が第１出退通路に正確に案内されず、縫い外れする目飛
びと称する現象が起こることがあった。However, as the material temporarily placed on the needle is sewn while being fed by the feed dog, the part of the material to be sewn is
By the time it reached the exit/exit passage, it would slip from side to side on the upper surface of the throat plate, making the direction of movement likely to become unstable. For this reason, especially in hemming, hemming, and the like, the area to be sewn is not accurately guided to the first exit/exit path, resulting in a phenomenon called skipped stitches in which the stitches come off.

本発明の目的は、生地の縫取予定箇所を、正確に第１出
退通路に案内されやすくする点にある。SUMMARY OF THE INVENTION An object of the present invention is to make it easier to accurately guide a portion of fabric to be sewn into a first exit/exit path.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のミシンの針板の特徴構成は、生地の縫取予定箇
所を凹入させて第１出退通路に案内するガイド溝を、送
り歯による生地送り込み方向に沿わせて手前から前記第
１出退通路にかけて設けてあることにあり、その作用効
果は、次の通りである。A characteristic configuration of the throat plate of the sewing machine of the present invention is such that a guide groove for recessing the part of the fabric to be sewn and guiding it to the first exit/exit passage is arranged from the front along the fabric feeding direction by the feed dog to the first passage. The reason for this is that it is provided across the exit/exit passage, and its functions and effects are as follows.

〔作　用〕[For production]

つまり、生地縫取予定箇所を、ガイド溝に凹入させるこ
とによって、縫取予定箇所は、針板上面で左右に滑るこ
とが防止されてその進行方向が安定し、そのために、送
り歯によって送り込みながら生地を縫製するに伴って、
ガイド溝に案内されながら確実に第１出退通路に導かれ
る。In other words, by recessing the area to be sewn into the guide groove, the area to be sewn is prevented from sliding left and right on the upper surface of the throat plate, and its direction of movement is stabilized. While sewing the fabric,
While being guided by the guide groove, it is reliably guided to the first exit/exit passage.

〔発明の効果〕〔Effect of the invention〕

従って、生地の縫取予定箇所が確実に第１出退通路に導
かれるために、縫い目が美しく並び、製品の価値を高く
維持できるようになった。その上、特に掘割加工や口伏
せ加工等においては、厚みの大きい縫取予定箇所が、第
１出退通路に到達する前で、布端を切断するための力・
ンターの出退用切欠き部を通過する時に、その切欠き部
の端縁にひっかかって左右にずれやすくなる傾向にある
加工においても、ガイド溝への縫取予定箇所の凹入によ
って、簡単になくすことができ、結局、ガイド溝を設け
るだけの簡単な改良で、目飛び現象や縫い目の直進性不
良等を防止し得て、正確で仕上がりの良好な縫製を維持
しやすくなった。Therefore, since the part of the fabric to be sewn is reliably guided to the first exit/exit path, the seams are lined up beautifully and the value of the product can be maintained at a high level. In addition, especially in cutting-out processing, closing-up processing, etc., the force required to cut the edge of the fabric before the thick part to be sewn reaches the first entrance/exit passageway.
Even in machining where when passing through the notch for entering and leaving the center, it tends to get caught on the edge of the notch and shift from side to side. In the end, with the simple improvement of just providing a guide groove, skipped stitches and poor straightness of seams can be prevented, making it easier to maintain accurate and well-finished sewing.

その上、ガイド溝に生地の縫取予定箇所が、針板上面よ
り下方に凹入したまま第１出退通路に案内されてミシン
針で縫われるために、縫取予定箇所が針仮によって不必
要に張った状態にならず、そのために、ミシン針が生地
に突入する時に、ミシン針によって生地の繊維が切れて
針孔が生地に形成されるということが防止され、縫い目
の強度を大きく維持できるようになった。Furthermore, since the part of the fabric to be sewn is recessed downward from the upper surface of the throat plate in the guide groove and is guided to the first exit/exit passage and sewn with the sewing machine needle, the part to be sewn may be damaged by the temporary needle. This prevents the sewing machine needle from cutting the fibers of the fabric and forming a needle hole in the fabric when the sewing machine needle penetrates the fabric, thereby maintaining the strength of the seam. Now you can.

〔実施例〕〔Example〕

次に本発明の実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.

第６図に示すように、針棒（３）に取付けられ、かつ、
針板（２）に形威した第１出退通路（４）に出退するミ
シン針（５）と、ミシン針挿通孔部（６）を切欠形成し
である押さえ金具（７）を、布台（１）の針板（２）の
上方に配設し、前記針板（２）の下方には、図外の周知
の下送り機構に連動して、針板（２）に形威された第２
出退通路（８）　、　（８）を通して上方に突出循環運
動することにより、生地（Ｃ）の下面に対して直線送り
力を付与する左右の送り歯（９）を設けてあり、生地送
り方向で前記針板（２）の手前側に、生地の縫取予定箇
所を係止しながら第１出退通路（４）の延長線上にほぼ
合わせる定規装置（１０）を設けて、裾引き加工用ミシ
ン縫製部を構威している。As shown in FIG. 6, it is attached to the needle bar (3), and
The sewing machine needle (5) that enters and exits the first exit/exit passage (4) formed in the throat plate (2) and the presser metal fitting (7) having a notch formed with the sewing machine needle insertion hole (6) are attached to the cloth. It is disposed above the throat plate (2) of the base (1), and below the throat plate (2), a shape is provided on the throat plate (2) in conjunction with a well-known downward feeding mechanism (not shown). second
Left and right feed teeth (9) are provided which apply a linear feed force to the lower surface of the fabric (C) by protruding upward and circulating through the exit/return passages (8) and (8). A ruler device (10) is provided on the front side of the throat plate (2) to hold the part of the fabric to be sewn and align it approximately on the extension line of the first exit/exit path (4) for hemming. In charge of the sewing machine sewing department.

第１図ないし第５図に示すように、前記針板（２）にお
ける第１出退通路（４）と２本の第２出退通路（８）は
、送り歯（９）　、　（９）による生地送り方向とは直
交する方向に並べてあり、第１出退通路（４）の手前に
、生地（Ｃ）の端部切断用カッター（１１）の配置用切
欠き部（１２）を設けて、裾引き加工用の針板（２）を
構威しである。As shown in FIGS. 1 to 5, the first egress/retreat passage (4) and the two second egress/retreat passages (8) in the throat plate (2) are connected to the feed dogs (9), (9). They are arranged in a direction perpendicular to the fabric feeding direction, and a cutout (12) for arranging a cutter (11) for cutting the edge of the fabric (C) is provided in front of the first exit/exit path (4). , and a throat plate (2) for hemming.

また、前記針板（２）には、生地（Ｃ）の縫取予定箇所
を凹入させて第１出退通路（４）に案内するガイド溝（
１３）を、送り歯（９）による生地送り込み方向に沿わ
せて手前の切欠き部（１２）から第１出退通路（１４）
にかけて設けてあり、ガイド溝（１３）の一部の内壁を
手前に連続的に延長するように、切欠き部（１２）の端
縁を面取り形威しである。Further, the throat plate (2) is provided with a guide groove (4) that recesses the area where the fabric (C) is to be sewn and guides it to the first exit/exit path (4).
13) along the fabric feed direction by the feed dog (9) from the front notch (12) to the first exit/exit path (14).
The edge of the notch (12) is chamfered so that a part of the inner wall of the guide groove (13) continuously extends toward the front.

前記ガイド溝（１３）は、正面から見た断面で第３図に
示すように、生地本体側第１内壁（１３Ａ）の傾斜角（
θ、）よりも生地端部側第２内壁（１３Ｂ）の傾斜角（
θ２）の方に大きくして、厚みの大きくなる生地端部の
縫取予定箇所が、生地本体側から押されてガイド溝（１
３〉内からはみ出さないようにして、目飛び現象を防止
するために、第１出退通路（４）に対するミシン針（５
）の出退位置と縫取予定箇所との左右方向に相対位置が
ずれないようにしである。As shown in FIG. 3 in a cross section seen from the front, the guide groove (13) has an inclination angle (
The inclination angle (
θ2), the area where the end of the fabric is to be sewn, where the thickness increases, is pushed from the fabric body side and the guide groove (1
3> In order to prevent the sewing machine needle (5) from protruding from the inside and prevent the stitch skipping phenomenon,
) to prevent the relative position from shifting in the left-right direction between the exit/retreat position and the planned sewing location.

前記カッター（１１）は、固定カッター（１，１Ａ）　
　と固定カッター（ＩＩＡ）に対して上下動する可動カ
ッター（ＩＩＢ）　とから戒り、生地を送り歯（９）で
移送するに伴って生地の端を切そろえるように構威しで
ある。The cutter (11) is a fixed cutter (1, 1A).
and a movable cutter (IIB) that moves up and down relative to the fixed cutter (IIA), so that the edges of the fabric are trimmed as the fabric is transported by the feed dog (9).

前記定規装置（１０）は、第４図ないし第６図に示すよ
うに、裾引き加工を行うために、生地（Ｃ）の端部をＳ
字状に折返して、端から順に第１折返し部（１４）と第
２折返し部（１５）を形成し、先端部（１６Ａ）を第２
折返し部（１５）に挿入すると共に、先端部（１６Ａ）
との協働で第１折返し部（１４）を挟む基端部（１６Ｂ
）を形成した正面視はぼＵ字状の定規羽ｔｌ（１６）を
、上下揺動自在に定規台（１７）に取付け、この定規台
（１７〉をミシン本体（Ａ）に固定しである。The ruler device (10), as shown in FIGS. 4 to 6, cuts the edge of the fabric (C) in order to hem the fabric (C).
Fold it in a letter shape to form a first folded part (14) and a second folded part (15) in order from the end, and the tip part (16A) to form a second folded part (15).
While inserting into the folded part (15), the tip part (16A)
The proximal end portion (16B) sandwiching the first folded portion (14) in cooperation with
) The ruler wing tl (16), which is roughly U-shaped when viewed from the front, is attached to a ruler stand (17) so as to be able to swing up and down, and this ruler stand (17>) is fixed to the sewing machine body (A). .

前記定規台（１７）には、前記先端部（１６Ａ）と左右
方向で対向して、前記第２折返し部（１５）をガイド溝
（１３）及び第１出退通路（４）に向けて案内するガイ
ド面（１７Ａ）を設けてある。The ruler stand (17) has a guide member that faces the tip end (16A) in the left-right direction and guides the second folded part (15) toward the guide groove (13) and the first exit/exit path (4). A guide surface (17A) is provided.

前記ガイド面（１７Ａ）は、平面視で弯曲形状に形状し
てあり、第２折返し部（１５）を前記先端部（１６＾）
との協働で挟みながら、送り歯（９）　、　（９）によ
り送られる布の縫取予定箇所を、第１出退通路（４）及
びガイド溝（１３）に沿うようにほぼ直線状に引張って
、ガイドするように構威しである。The guide surface (17A) has a curved shape in plan view, and the second folded portion (15) is connected to the tip portion (16^).
While holding the cloth in cooperation with the feed dogs (9) and (9), the sewing area of the fabric fed by the feed dogs (9) and (9) is almost straight along the first egress/retreat path (4) and the guide groove (13). It is designed to pull and guide.

〔別実施例〕[Another example]

前記ガイド溝（１３）は、第７図に示すように、第１内
壁（１３Ａ）と第２内壁（１３Ｂ）の傾斜角を夫々同じ
に形成してあってもよく、第８図に示すように、第２内
壁（１３Ｂ）の傾斜角（θ２）を９０度以上に形成して
あってよく、この方が縫取予定箇所のガイドをより安定
して行える利点がある。The guide groove (13) may have the first inner wall (13A) and the second inner wall (13B) having the same inclination angle as shown in FIG. Furthermore, the inclination angle (θ2) of the second inner wall (13B) may be formed to be 90 degrees or more, which has the advantage of being able to more stably guide the area to be sewn.

本発明は、裾引き加工用のミシン以外のミシンの針板も
適用してもよいものである。The present invention may also be applied to throat plates of sewing machines other than sewing machines for hemming.

前記第１出退通路（８）は、２木釘用のくシンのように
２つ並設してありもよい。Two of the first exit/exit passages (8) may be arranged in parallel like two wooden nails.

前記定規装置（１０）における定規羽根（１６）の先端
部（１６Ａ）には、第９図ないし第１３図に示すように
上下軸（Ｐ）周りに回転する円盤（１８）を設けてあっ
てもよく、この円盤（１８）を、第２折返し部（１５）
に挿入して折り目を付けながら生地（Ｃ）を送りガイド
するのに、抵抗少なくスムーズに行える利点を有し、特
に、部分的に伸縮率の異なるプリント柄の捺染用生地を
縫製する場合は、第１０図に示すように、周部が凹凸形
状をした歯車状円盤（１９）を回転自在に取付ければよ
（、これによると、生地（Ｃ）のプリント箇所の有無に
かかわらず、生地（Ｃ）の第２折返し部（１５）を確実
に係止しながら回転して、送り歯（９）の送り速度と同
調した送り速度で送り込むことができ、その結果目飛び
現象なく一定の間隔の縫目を形成できる。The tip (16A) of the ruler blade (16) in the ruler device (10) is provided with a disk (18) that rotates around the vertical axis (P), as shown in FIGS. 9 to 13. Also, this disk (18) can be attached to the second folded part (15).
It has the advantage of being able to feed and guide the fabric (C) while creating creases by inserting it into the fabric (C), which can be done smoothly with little resistance.Especially when sewing fabrics for printing with printed patterns that have partially different stretch rates. As shown in Fig. 10, a gear-shaped disk (19) with an uneven circumferential portion is rotatably attached (According to this, regardless of the presence or absence of a printed area on the fabric (C), The second folded part (15) of C) can be rotated while being securely locked, and can be fed at a feed speed that is synchronized with the feed speed of the feed dog (9). Can form seams.

尚、前記先端部（１６＾）及び前記円盤（１８）　、　
（１９）の周縁は、第１３図に示すように、正面視で約
６０゜の角度で先細りのエッヂに形成してあり、このエ
ッヂによって、第２折返し部（１５）に折り目がつきや
すくしながらガイド溝（Ｉ３）に係入しやすくして、縫
い位置を安定させられるように構成しである。In addition, the tip portion (16^) and the disk (18),
As shown in Fig. 13, the peripheral edge of (19) is formed into a tapered edge at an angle of approximately 60° when viewed from the front, and this edge makes it easy to crease the second folded portion (15). However, it is structured so that it can be easily inserted into the guide groove (I3) and the sewing position can be stabilized.

前記定規羽根（１６）には、第１４図に示すように、円
！　（１８）　、　（１９）を着脱又は交換できるよう
に、円盤用軸受部（２０）を設けた取付部材（２１）を
、定規羽根（１６）に沿って正面視はぼＵ字状に弯曲形
成させた金属板から形成して、定規羽根（１６）に重ね
るように外嵌させた円盤取付状態と、定規羽根（１６）
から離した円盤取外し状態とに切換自在に構威し、円盤
取付状態では定規羽ｍ　（１６）と取付部材（２１）と
をビス（２２）で一体連結できるように構成しである。As shown in FIG. 14, the ruler blade (16) has a circle! (18), (19), the mounting member (21) provided with the disc bearing part (20) is curved into a U-shape when viewed from the front along the ruler blade (16). A state in which a disk is mounted and formed from a metal plate made of a metal plate and fitted over the ruler blade (16), and a ruler blade (16)
The ruler blade m (16) and the mounting member (21) can be integrally connected with the screw (22) in the disk mounted state.

尚、前記円盤取外し状態では、本来の使い方としての定
規羽１（１６）だけの使用が可能である。In addition, in the state in which the disk is removed, only the ruler blade 1 (16) can be used as originally intended.

図中（２３〉は、円盤取付状態で定規羽ＩＩ（１６）と
取付部材（２１）との間隔を、一定距離あけるためのス
ペーサ用突出部である。In the figure, (23>) is a spacer protrusion for creating a certain distance between the ruler wing II (16) and the attachment member (21) when the disk is attached.

尚、前記円盤（１８）　、　（１９）は、金属板又は樹
脂板又は樹脂をコーティングした金属板又はセラミック
板から成形しである。The disks (18) and (19) are molded from metal plates, resin plates, or resin-coated metal plates or ceramic plates.

前記円盤（１Ｂ）　、　（１９）の軸部には、滑りが良
く摩擦を少なくするために、テフロン樹脂又はカーボチ
タン等のセラ主ツクスをコーティングしてあってもよい
。The shaft portions of the disks (1B) and (19) may be coated with a ceramic material such as Teflon resin or carbo titanium in order to improve slippage and reduce friction.

また、前記定規羽根（１６）又は円盤（１８）　、　（
１９）は、帯電防止材から形成してあってもよく、この
場合は、化学繊維の縫製時に生しる静電気に起因した生
地のからみ付きや、ゴミの付着が防止でき、生地の滑り
が良く縫製を良好に維持できる。In addition, the ruler blade (16) or the disc (18), (
19) may be made of an antistatic material; in this case, it is possible to prevent the fabric from tangling and dust from adhering to it due to static electricity generated when sewing chemical fibers, and to improve the slippage of the fabric. Sewing can be maintained well.

４ 尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。4. Note that although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

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

図面は本発明に係るミシンの針板の実施例を示し、第１
図は針板の平面図、第２図は針板の斜視図、第３図は要
部断面図、第４図は要部平面図、第５図は布縫製時の要
部平面図、第６図は要部斜視図、第７図及び第８図は夫
々別実施例の針板の要部断面図、第９図及び第１０図は
夫々別実施例の定規羽根の底面斜視図、第１１図は別実
施例の要部正面図、第１２図は別実施例の要部平面図、
第１３図は円盤の要部正面図、第１４図は別実施例の定
期羽根の分解斜視図である。 （２）・・・・・・針板、（４）・・・・・・第１出退
通路、（５）・・・・・・ミシン針、（８）・・・・・
・第２出退通路、（９）・・・・・・送り歯、（１３）
・・・・・・ガイド溝、（Ｃ）・・・・・・生地。The drawings show an embodiment of the needle plate of the sewing machine according to the present invention.
The figure is a plan view of the throat plate, Figure 2 is a perspective view of the throat plate, Figure 3 is a sectional view of the main part, Figure 4 is a plan view of the main part, Figure 5 is a plan view of the main part when sewing cloth, 6 is a perspective view of the main part, FIGS. 7 and 8 are sectional views of the main part of the throat plate of another embodiment, and FIGS. 9 and 10 are bottom perspective views of the ruler blade of another embodiment, respectively. Fig. 11 is a front view of the main part of another embodiment, Fig. 12 is a plan view of the main part of another embodiment,
FIG. 13 is a front view of the main part of the disk, and FIG. 14 is an exploded perspective view of a periodic blade according to another embodiment. (2)... Throat plate, (4)... First entrance/exit passage, (5)... Sewing machine needle, (8)...
・Second exit/exit passage, (9)... Feed dog, (13)
...Guide groove, (C) ...Fabric.

Claims (1)

【特許請求の範囲】[Claims] ミシン針（５）の第１出退通路（４）及び送り歯（９）
の第２出退通路（８）を設けてあるミシンの針板であっ
て、生地（Ｃ）の縫取予定箇所を凹入させて前記第１出
退通路（４）に案内するガイド溝（１３）を、前記送り
歯（９）による生地送り込み方向に沿わせて手前から前
記第１出退通路（４）にかけて設けてあるミシンの針板
。First egress/retreat path (4) of sewing machine needle (5) and feed dog (9)
The needle plate of a sewing machine is provided with a second egress/egress passage (8), the guide groove ( 13) is provided along the fabric feed direction by the feed dog (9) from the front side to the first egress/retreat path (4).