JP2592494Y2 - Sewing machine needle hole device - Google Patents
Sewing machine needle hole deviceInfo
- Publication number
- JP2592494Y2 JP2592494Y2 JP1993053229U JP5322993U JP2592494Y2 JP 2592494 Y2 JP2592494 Y2 JP 2592494Y2 JP 1993053229 U JP1993053229 U JP 1993053229U JP 5322993 U JP5322993 U JP 5322993U JP 2592494 Y2 JP2592494 Y2 JP 2592494Y2
- Authority
- JP
- Japan
- Prior art keywords
- needle
- sewing
- hole
- rotary hook
- 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.)
- Expired - Fee Related
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【0001】[0001]
【産業上の利用分野】この考案は、ミシンの縫い針によ
り上糸が布地を貫通して形成される糸ループを回転釜の
剣先が捕捉確実な位置に設定するミシンの針穴装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a needle hole device of a sewing machine for setting a thread loop formed by penetrating an upper thread through a fabric by a sewing needle of a sewing machine at a position where a blade point of a rotary hook catches the thread. is there.
【0002】[0002]
【従来の技術】図6は、ミシンの針穴装置Aを示す図で
あり、このミシンの針穴装置Aは、円形の針貫通穴Bを
備えた針ガイド部材A1と、この針ガイド部材A1を着
脱自在に支持する針板A2と、を備えて構成され、被縫
製物Wと後述の回転釜3との間に設置されている。そし
て、このミシンの針穴装置Aは、種々の被縫製物Wに応
じて縫い針Nを交換した際、その縫い針Nの太さに応じ
た針貫通穴Bを有する。この針ガイド部材A1は針貫通
穴Bの中心位置と縫い針Nの昇降経路N1とが一致する
ように針板A2に設置されている。2. Description of the Related Art FIG. 6 is a view showing a needle hole device A of a sewing machine. The needle hole device A of the sewing machine includes a needle guide member A1 having a circular needle through hole B, and a needle guide member A1. And a needle plate A2 for detachably supporting the sewing machine W. The needle plate A2 is provided between the sewing object W and a rotary hook 3 described later. The needle hole device A of the sewing machine has a needle through hole B corresponding to the thickness of the sewing needle N when the sewing needle N is exchanged according to various sewing objects W. The needle guide member A1 is installed on the needle plate A2 such that the center position of the needle through hole B coincides with the elevation path N1 of the sewing needle N.
【0003】また、Nは不図示の昇降手段により昇降を
なす縫い針であり、この縫い針Nは先端部の近傍に針穴
Naを備えていて、この針穴Naには縫い糸1(上糸)
が挿通されている。そして、3は回転釜(垂直全回転
釜、水平全回転釜、半回転釜等であって、図例は垂直全
回転釜を示している)であり、この回転釜3は、縫い糸
(下糸)を巻回したボビンを格納する中釜3bと、剣先
5を有し不図示の回転手段により回転をなす外釜3a
と、を備えていてる。[0003] Further, N is a sewing needle which is moved up and down by a lifting means (not shown). The sewing needle N has a needle hole Na near a tip end thereof. )
Is inserted. Reference numeral 3 denotes a rotary hook (a vertical full rotary hook, a horizontal full rotary hook, a half rotary hook, or the like, and the illustrated example shows a vertical full rotary hook). ) And an outer hook 3a having a sword 5 and rotated by rotating means (not shown).
And, it has.
【0004】次に図6に示した針穴装置の作用を図7お
よび図8により説明する。縫い針Nは、図7に示すよう
に被縫製物Wを貫いてミシンの針穴装置Aの針貫通穴B
を通り針板A2の下方まで下降し、次いで図8に示すよ
うに上昇して、被縫製物Wおよび針板A2の下方で縫い
糸1を撓ませて、針穴Naの両側部にループ1aを形成
する。そして、回転釜3は、縫い針Nが形成した糸ルー
プ1aを、外釜3aの剣先5で捕捉し、中釜3bが格納
するボビンの縫い糸(下糸)と捕捉した糸ループ1a
(上糸)とを交差させるように回転して縫い目を形成す
る。Next, the operation of the needle hole device shown in FIG. 6 will be described with reference to FIGS. As shown in FIG. 7, the sewing needle N penetrates the workpiece W and passes through the needle through hole B of the needle hole device A of the sewing machine.
Through the needle plate A2, and then rises as shown in FIG. 8 to deflect the sewing thread 1 below the sewing object W and the needle plate A2, thereby forming loops 1a on both sides of the needle hole Na. Form. Then, the rotary hook 3 captures the thread loop 1a formed by the sewing needle N with the blade point 5 of the outer hook 3a, and captures the sewing thread (bottom thread) of the bobbin stored in the inner hook 3b with the thread loop 1a.
(Upper thread) to form a seam.
【0005】ところで、回転釜3は、縫い針Nと接近、
離間するように位置調節が可能となっていて、被縫製物
Wに応じて異なる太さの縫い針Nと交換した場合におい
ても縫い針Nと剣先5との間隙を一定にすることができ
るようになっている。また、回転釜3の中釜3bには、
中釜3bが外釜3aに追従して回転することがないよう
に中釜押え(不図示)が設けられていて、この中釜押え
には、縫い針Nの昇降経路N1を間にして回転釜3と反
対側に位置する糸ループ受け部材(不図示)が設置され
ている。そして、この糸ループ受け部材と糸ループ1a
とを接触させることで糸ループ1aを回転釜3の剣先方
向に導き、剣先5が適正に糸ループ1aを捕捉できるよ
うにしている。By the way, the rotary hook 3 approaches the sewing needle N,
The position can be adjusted so as to be separated from each other, so that the gap between the sewing needle N and the blade tip 5 can be kept constant even when the sewing needle N having a different thickness is exchanged according to the workpiece W. It has become. Also, in the intermediate pot 3b of the rotary pot 3,
An inner hook retainer (not shown) is provided to prevent the inner shuttle 3b from rotating following the outer shuttle 3a. The inner shuttle retainer is rotated by a lifting / lowering path N1 of the sewing needle N therebetween. A thread loop receiving member (not shown) located on the opposite side of the shuttle 3 is provided. The yarn loop receiving member and the yarn loop 1a
The thread loop 1a is guided in the direction of the blade point of the rotary hook 3 by making contact with the tip of the rotary hook 3, so that the blade point 5 can properly catch the thread loop 1a.
【0006】[0006]
【考案が解決しようとする課題】しかしながら上記従来
のミシンには次のような問題がある。すなわち、種々の
被縫製物Wに応じて縫い針Nを交換して、その縫い針N
の太さに応じて回転釜3の剣先5と縫い針Nとの位置を
調節すると、この回転釜3に設置された糸ループ受け部
材の位置も変化してしまうので、回転釜3の設定位置に
よっては糸ループ受け部材が所定の動作をなし得なくな
る場合が生じる。すなわち、細い縫い針Nの使用時、こ
の縫い針Nと回転釜3の剣先5とに適宜の間隙を形成す
るように回転釜3を縫い針Nに接近させると、縫い針N
を間にして回転釜3と反対側に設けられる糸ループ受け
部材は逆に縫い針Nから離れてしまう。However, the conventional sewing machine has the following problems. That is, the sewing needle N is exchanged according to various sewing objects W, and the sewing needle N is changed.
When the position of the sword tip 5 and the sewing needle N of the rotary hook 3 is adjusted according to the thickness of the rotary hook 3, the position of the thread loop receiving member installed on the rotary hook 3 also changes. In some cases, the thread loop receiving member cannot perform a predetermined operation. That is, when using the thin sewing needle N, when the rotary hook 3 is brought close to the sewing needle N so as to form an appropriate gap between the sewing needle N and the blade point 5 of the rotary hook 3, the sewing needle N
, The thread loop receiving member provided on the opposite side of the rotary hook 3 is separated from the sewing needle N on the contrary.
【0007】そして、縫い針Nから離れ過ぎた糸ループ
受け部材は、縫い針Nが形成した糸ループ1aを回転釜
3が適正に捕捉可能な位置まで導くことができなくなっ
てしまう。このようにして、回転釜3は糸ループ1aを
捕捉しない状態で回転し、縫い目が形成されない、いわ
ゆる目飛びを発生する。The thread loop receiving member that is too far from the sewing needle N cannot guide the thread loop 1a formed by the sewing needle N to a position where the rotary hook 3 can properly catch it. In this way, the rotary hook 3 rotates without catching the thread loop 1a, and so-called stitch skipping in which a stitch is not formed occurs.
【0008】そこで、この対策として図9に示すように
針板A2の針穴2の裏面部へ、一方に膨み4aを設けた
パイプ4を装設し、膨み4aによって糸ループ1aを回
転釜3の剣先方向にのみ突出させるようにしたものがあ
る。従って、針穴2およびパイプ4の図中左側壁は略直
線状に下方に延出しているため、例えば太い縫い針を使
用した場合には縫い針Nの昇降経路を間にして縫い針N
の保持する縫い糸1と接するパイプ4の左側壁は縫い針
Nの昇降を妨げることがないように、昇降する縫い針N
とに適正な空隙が形成される。そのことにより縫い糸1
の撓みを針穴Naから膨み4aに押し出して、糸ループ
1aを回転釜3の剣先方向にのみ突出するように形成す
る。Therefore, as a countermeasure against this, as shown in FIG. 9, a pipe 4 provided with a bulge 4a on one side is provided on the back surface of the needle hole 2 of the needle plate A2, and the yarn loop 1a is rotated by the bulge 4a. There is one in which the hook 3 projects only in the direction of the sword tip. Accordingly, since the left side wall of the needle hole 2 and the pipe 4 in the figure extends downward substantially linearly, for example, when a thick sewing needle is used, the sewing needle N
The left side wall of the pipe 4 which is in contact with the sewing thread 1 held by the sewing needle N so as not to hinder the elevation of the sewing needle N
Thus, an appropriate gap is formed. The sewing thread 1
Is extruded from the needle hole Na to the bulge 4a, and the thread loop 1a is formed so as to protrude only in the direction of the blade point of the rotary hook 3.
【0009】とことが細い縫い針Nを使用した場合には
前記パイプ4の左側壁と昇降する縫い針Nとの空隙が大
きくなり、そのため縫い糸1の撓みを針穴Naから膨み
4aに押し出す量が不十分となる。また、パイプ4の右
側壁も針穴2と直線状に下方に延出しているので、糸ル
ープ1aの大きさは膨み4aの大きさにかかわらずこの
パイプ4の直線部分によって制限されて不十分となる。
依って、そのため回転釜3の剣先が糸ループ1aを捕捉
しない状態で回転し、縫い目が形成されない、いわゆる
目飛びを発生する可能性がある。When a sewing needle N having a very small thickness is used, a gap between the left side wall of the pipe 4 and the sewing needle N which moves up and down becomes large, so that the bending of the sewing thread 1 is pushed out from the needle hole Na to the bulge 4a. Insufficient quantity. Since the right side wall of the pipe 4 also extends downward in a straight line with the needle hole 2, the size of the thread loop 1a is limited by the straight portion of the pipe 4 regardless of the size of the bulge 4a. Will be enough.
Therefore, there is a possibility that the blade point of the rotary hook 3 rotates without catching the thread loop 1a, so that a seam is not formed.
【0010】[0010]
【課題を解決するための手段】この考案に係るミシンの
針穴装置は、縫い針を挿通可能な針貫通穴を有する針ガ
イド部材と、 この針ガイド部材を着脱可能に支持する針
板と、を有し、 縫い針により形成される糸ル−プを回転
釜の剣先が捕捉可能なミシンの針穴装置において、 前記
針ガイド部材の針貫通穴を、縫い針の昇降経路の中心よ
り回転釜の剣先側に偏奇した針穴を含む円形穴と、縫い
針の昇降経路を間にして回転釜の剣先とは反対側の円形
穴内側面に、縫い針が保持する縫い糸と接する当接部
と、を備えて形成し、この当接部と縫い糸とを接触させ
ることにより、糸ル−プを回転釜の剣先寄りに形成する
ようにしたことを特徴とするミシンの針穴装置。SUMMARY OF THE INVENTION A needle hole device of a sewing machine according to the present invention has a needle needle having a needle through hole through which a sewing needle can be inserted.
Guide member and a needle for detachably supporting the needle guide member
It includes a plate, a title is formed by the needles - rotating the flop
In needle hole device of the sewing machine the hook point that can be captured in the kettle, the
The needle through-hole of the needle guide member is located on the opposite side of the rotary hook from the center of the sewing needle elevating path, including the circular hole including the staggered needle hole on the side of the rotary hook. The inner surface of the circular hole is provided with an abutting portion that comes into contact with the sewing thread held by the sewing needle, and the abutting portion and the sewing thread are brought into contact with each other to form a thread loop near the blade of the rotary hook. A needle hole device for a sewing machine, wherein
【0011】[0011]
【作用】この考案に係るミシンの針穴装置は、縫い針の
昇降経路の中心より回転釜の剣先側に偏奇した針穴を含
む円形穴を設け、縫い針の昇降経路を間にして回転釜の
剣先とは反対側の円形穴内側面に形成される当接部を、
縫い針の針穴から両側に折り返される一方側の縫い糸、
すなわち縫い針を間にして回転釜の剣先とは反対側に折
り返される縫い糸に接触させる。The needle hole device of the sewing machine according to the present invention is provided with a circular hole including a deviated needle hole on the blade point side of the rotary hook from the center of the lifting / lowering path of the sewing needle, and the rotary hook with the lifting / lowering path of the sewing needle interposed therebetween. The contact part formed on the inner surface of the circular hole opposite to the point of the sword,
One side sewing thread that is folded back to both sides from the needle hole of the sewing needle,
That is, the sewing needle is brought into contact with the sewing thread that is turned back to the opposite side of the rotary hook from the blade point.
【0012】そして、縫い針の上昇時において、縫い針
を間に回転釜の剣先とは反対側に生じる縫い糸の撓み
を、この当接部により縫い針の針穴から回転釜の剣先方
向に押し出し、糸ループを回転釜の剣先方向にのみ大き
く突出させる。これにより、回転釜の剣先は形状の大き
な糸ループを確実に捕捉することができ、目飛びのない
適正な縫い目を形成することができる。When the sewing needle is raised, the bending of the sewing thread generated between the sewing needle and the opposite side of the rotary hook from the sword tip is pushed out from the needle hole of the sewing needle toward the sword tip of the rotary hook by the abutting portion. The thread loop is made to protrude only in the direction of the blade point of the rotary hook. As a result, the point of the rotary hook can reliably catch the thread loop having a large shape, and an appropriate stitch without skipping can be formed.
【0013】[0013]
【実施例】図面にもとづいてこの考案の実施例を説明す
る。なお従来例と同一または相当箇所には同一符号を付
して説明する。図1および図2は、この考案の一実施例
を示す図である。図1においてAはミシンの針穴装置で
あり、このミシンの針穴装置Aは、縫い針Nを挿通する
針貫通穴Bを備えた針ガイド部材A1と、この針ガイド
部材A1を着脱自在に支持する針板A2とからなってい
て、被縫製物Wと回転釜3との間に設置されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. The same or corresponding parts as those in the conventional example will be described with the same reference numerals. 1 and 2 are views showing an embodiment of the present invention. In FIG. 1, A denotes a needle hole device of a sewing machine. The needle hole device A of the sewing machine includes a needle guide member A1 having a needle through hole B through which a sewing needle N is inserted, and the needle guide member A1 is detachably attached. It comprises a supporting needle plate A <b> 2, and is installed between the work W and the rotary hook 3.
【0014】そして、針ガイド部材A1の針貫通穴B
は、針穴を含む円形穴により形成するとともに、その中
心位置B1を縫い針Nの昇降経路N1から回転釜3の剣
先寄りに偏奇させて、昇降経路N1を間にして回転釜3
の剣先とは反対側の内側面で縫い針Nの保持する縫い糸
1と接する当接部Cを構成している。また、この当接部
Cは縫い針Nの昇降を妨げることがないように、昇降す
る縫い針Nとに僅かな空隙を形成するようになってい
る。The needle through hole B of the needle guide member A1
Is formed by a circular hole including a needle hole, the center position B1 of which is deviated from the lifting / lowering path N1 of the sewing needle N toward the blade point of the rotary hook 3, and the rotary hook 3 is interposed between the lifting / lowering path N1.
The abutment portion C which is in contact with the sewing thread 1 held by the sewing needle N is formed on the inner surface opposite to the point of the sword. Further, the contact portion C forms a slight gap with the sewing needle N that moves up and down so as not to hinder the elevation of the sewing needle N.
【0015】次にこのミシンの針穴装置Aの作用を図2
により説明する。図2(a)に示すように縫い針Nが被
縫製物Wを貫きミシンの針穴装置Aの針貫通穴Bを通る
と、中心を回転釜3寄りに偏奇させて縫い針Nの昇降経
路N1を間にして回転釜3とは反対側の内側面から構成
される当接部Cは、縫い針Nの針穴Naから縫い針Nの
両側部に折り返される縫い糸1の一方側、すなわち縫い
針Nを介して回転釜3と反対側(図において左側)の縫
い糸1に接触する。Next, the operation of the needle hole device A of the sewing machine will be described with reference to FIG.
This will be described below. As shown in FIG. 2 (a), when the sewing needle N penetrates the workpiece W and passes through the needle through hole B of the needle hole device A of the sewing machine, the center is deviated toward the rotary hook 3 to move the needle N up and down. An abutment portion C constituted by an inner surface opposite to the rotary hook 3 with N1 interposed therebetween is one side of the sewing thread 1 folded back from the needle hole Na of the sewing needle N to both side portions of the sewing needle N, that is, the sewing. The needle contacts the sewing thread 1 on the opposite side (left side in the figure) of the rotary hook 3 via the needle N.
【0016】そして、縫い針Nが上昇する際、縫い糸1
は、図8に示すように針穴Naを中心にして両側にそれ
ぞれ同形状のループを形成するように撓もうとするが、
この縫い糸1の一方側(図において左側)に接する当接
部Cは、図2(b)に示すように縫い針Nの上昇ととも
に生じる縫い糸の撓みを針穴Naから他方側(図におい
て右側)に押し出して、糸ループ1aを回転釜3方向に
のみ大きく突出するように形成する。すなわち、当接部
Cと接触する縫い糸1は、縫い針Nと当接部Cとの間に
挟まれた状態となり、縫い針Nが上昇しても撓み(ルー
プ)を形成することができず縫い針Nに沿って直線状と
なり、この縫い糸1の撓み分は縫い針Nが上昇するにし
たがい、針穴Naから回転釜3の剣先方向に繰り出され
る。この際、偏奇した針貫通穴B(針穴を含む円形溝)
において、縫い針Nの右側には大きな空隙が存在するの
で、糸ループ1aはこの空隙により撓み制限を受けるこ
となく回転釜3の剣先方向に繰り出される。Then, when the sewing needle N rises, the sewing thread 1
Attempts to bend so as to form loops of the same shape on both sides of the needle hole Na as shown in FIG.
As shown in FIG. 2B, the contact portion C that contacts one side (the left side in the figure) of the sewing thread 1 causes the bending of the sewing thread that occurs with the rise of the sewing needle N from the needle hole Na to the other side (the right side in the figure). And the yarn loop 1a is formed so as to protrude largely only in the direction of the rotary hook 3. That is, the sewing thread 1 that comes into contact with the contact portion C is sandwiched between the sewing needle N and the contact portion C, and cannot bend (loop) even if the sewing needle N rises. The sewing thread 1 is linearly formed along the sewing needle N, and the bending amount of the sewing thread 1 is fed out from the needle hole Na toward the blade point of the rotary hook 3 as the sewing needle N rises. At this time, the distorted needle through hole B (circular groove including the needle hole)
In this case, since a large gap exists on the right side of the sewing needle N, the thread loop 1a is extended in the direction of the blade point of the rotary hook 3 without being restricted by the gap.
【0017】そして、回転釜3の剣先側にのみ糸ループ
1aが形成され、この糸ループ1aは従来回転釜3の剣
先側に形成される糸ループ1aのほぼ2倍の大きさとな
る。これにより、回転釜3の剣先は、大きく突出した糸
ループ1aを確実に捕捉することができ、目飛びのない
適正な縫い目を形成することが可能となる。なお、被縫
製物Wに応じて縫い針Nを交換した場合には、その縫い
針Nの太さに応じた針貫通穴B、当接部Cを備えた針ガ
イド部材A1に交換すれば上述同様糸ループ1aを回転
釜3の剣先が十分に捕捉可能な位置まで導くことができ
る。The thread loop 1a is formed only on the blade point side of the rotary hook 3, and this thread loop 1a is approximately twice as large as the thread loop 1a formed on the blade point side of the conventional rotary hook 3. As a result, the point of the rotary hook 3 can reliably catch the thread loop 1a that protrudes greatly, and it is possible to form an appropriate seam without skipping. When the sewing needle N is exchanged according to the sewing object W, the needle needle member A1 having the needle through hole B and the contact portion C according to the thickness of the sewing needle N can be exchanged as described above. Similarly, the thread loop 1a can be guided to a position where the blade point of the rotary hook 3 can be sufficiently captured.
【0018】一方、図3ないし図4は、この考案の他の
実施例を示す図である。この実施例の針穴装置Aは、図
3および図4に示すように被縫製物側の開口部を縫い針
Nの昇降経路N1を中心とする大径円形穴B2と、この
大径円形穴B2の下部側方に縫い針Nの昇降経路N1の
中心より回転釜3の剣先側に偏奇した針穴を含む小径円
形穴B3と、縫い針Nの昇降経路N1を間にして回転釜
3の剣先とは反対側の前記小径円形穴B3の内側面に、
縫い針Nが保持する縫い糸と接する当接部Cとを設けて
いる。この当接部Cは縫い針Nの昇降を妨げることがな
いよう、昇降する縫い針Nとの間に僅かな空隙を形成す
るようになっている。FIGS. 3 and 4 show another embodiment of the present invention. As shown in FIGS. 3 and 4, the needle hole device A of this embodiment has a large-diameter circular hole B2 centered on an ascending / descending path N1 of the sewing needle N, and a large-diameter circular hole. A small-diameter circular hole B3 including a needle hole deviated from the center of the ascending and descending path N1 of the sewing needle N to the sword tip side of the rotary hook 3 below the lower side of B2, and the ascending and descending path N1 of the sewing needle N On the inner surface of the small-diameter circular hole B3 opposite to the point of the sword,
There is provided a contact portion C which comes into contact with the sewing thread held by the sewing needle N. The contact portion C forms a slight gap between the needle N and the needle N that moves up and down so as not to hinder the elevation of the needle N.
【0019】以上の構成からなるミシンの針穴装置A
は、上述したこの考案の上記一実施例(図2(a)およ
び(b)参照)と同様に、当接部Cと縫い糸1とを接触
させて、糸ループ1aを回転釜3の剣先寄りに大きく形
成し、回転釜3の剣先に確実に糸ループ1aを捕捉させ
るこで適正な縫い目の形成を可能にする。A needle hole device A for a sewing machine having the above-described configuration.
As in the above-described embodiment of the present invention (see FIGS. 2 (a) and 2 (b)), the contact portion C and the sewing thread 1 are brought into contact with each other, and the thread loop 1a is brought closer to the blade point of the rotary hook 3. It is possible to form an appropriate seam by reliably catching the thread loop 1a at the blade point of the rotary hook 3.
【0020】また、このミシンの針穴装置Aにおいて
は、縫い針Nの昇降経路N1と、被縫製物W側の開口部
(大径円形穴B2)の中心位置が一致するよう設定され
ているので、模様縫いミシン等において被縫製物Wがい
かなる方向に送られても、図4(a)に示すように縫い
針Nの昇降経路N1から針貫通穴B(円形溝B2)の縁
部までの距離a及びbが等しく、縫い糸1とミシンの針
穴装置Aの縁部との摩擦抵抗が一定しているので、ミシ
ンの天秤による糸締めが均一に行え、適正な模様縫い目
が形成される。Further, in the needle hole device A of the sewing machine, the elevating / lowering path N1 of the sewing needle N and the center position of the opening (large-diameter circular hole B2) on the workpiece W side are set to coincide. Therefore, no matter what direction the workpiece W is sent in the pattern sewing machine or the like, as shown in FIG. 4A, the sewing needle N is moved from the elevation path N1 to the edge of the needle through hole B (circular groove B2). Are equal and the frictional resistance between the sewing thread 1 and the edge of the needle hole device A of the sewing machine is constant, so that the thread can be uniformly tightened by the balance of the sewing machine and an appropriate pattern stitch is formed. .
【0021】なお、図1および図3に示したミシンの針
穴装置Aは、一つまたは二つの円形穴を形成することで
当接部Cを構成したが、例えば図5(a)に示すように
回転釜方向に向けて突出するように傾斜する傾斜部によ
り当接部Cを形成しても良く、また同図(b)に示すよ
うにミシンの針穴装置の下方に回転釜方向に向けて突出
する突出部材を固定して当接部Cを形成しても同様の効
果を得ることができる。さらに、上記実施例および他の
実施例で述べた針ガイド部材A1は、ピン等の位置決め
部材等を介して針板A2に装着されているが、勿論針ガ
イド部材A1を針板A2に一体に構成しても良い。In the needle hole device A of the sewing machine shown in FIGS. 1 and 3, the contact portion C is formed by forming one or two circular holes. For example, as shown in FIG. The contact portion C may be formed by an inclined portion which is inclined so as to protrude toward the rotating hook in the direction of the rotating hook in the direction of the rotating hook below the needle hole device of the sewing machine as shown in FIG. The same effect can be obtained even if the abutting portion C is formed by fixing the protruding member protruding toward. Further, the needle guide member A1 described in the above embodiment and other embodiments is mounted on the needle plate A2 via a positioning member such as a pin, but of course, the needle guide member A1 is integrated with the needle plate A2. You may comprise.
【0022】[0022]
【考案の効果】この考案に係るミシンの針穴装置は、以
上説明したように、縫い針を挿通する針貫通穴を、縫い
針の昇降経路の中心より回転釜の剣先側に偏奇した針穴
を含む円形穴と、縫い針の昇降経路を間にして回転釜と
は反対側の円形穴内側面に、縫い針が保持する縫い糸と
接する当接部と、を備えて構成し、この当接部と縫い糸
とを接触させることにより、糸ル−プを回転釜の剣先寄
りに形成するようにしたので、回転釜の剣先に確実に糸
ル−プを捕捉させることができ、目飛びのない適正な縫
い目が可能となる。また、針穴を有する針ガイド部材
は、針板に着脱可能である。このため、縫製条件に基づ
き縫い針を交換した場合、この縫い針の太さに応じた、
針貫通穴と当接部とを備えた針ガイド部材への交換を容
易に行うことができる。 As described above, in the needle hole device of the sewing machine according to the present invention, the needle through hole for inserting the sewing needle is deviated from the center of the ascending / descending path of the sewing needle to the sword tip side of the rotary hook. And a contact portion which is in contact with a sewing thread held by the sewing needle on the inner surface of the circular hole opposite to the rotary hook with the sewing needle elevating path interposed therebetween. The thread loop is formed near the sword tip of the rotary hook by contacting the sewing thread with the sewing thread. It is possible to make a great seam. A needle guide member having a needle hole;
Is detachable from the needle plate. Therefore, based on the sewing conditions,
If the sewing needle has been replaced,
Replacement with a needle guide member having a needle through hole and a contact part
It can be done easily.
【図1】この考案に係るミシンの針穴装置の一実施例を
示す断面図である。FIG. 1 is a sectional view showing an embodiment of a needle hole device of a sewing machine according to the present invention.
【図2】図1に示したミシンの針穴装置の作用を示す図
で、同図(a)は縫い針の下降時、同図(b)は縫い針
の上昇時における糸ループ形成時を示す説明側面図であ
る。FIGS. 2A and 2B are diagrams showing the operation of the needle hole device of the sewing machine shown in FIG. 1, wherein FIG. 2A shows the state when the sewing needle is lowered, and FIG. 2B shows the state when the thread loop is formed when the sewing needle is raised. It is an explanatory side view shown.
【図3】縫い針の昇降経路を中心とする円形状の開口部
を有する針貫通穴を備えたミシンの針穴装置の他の実施
例を示す説明断面図である。FIG. 3 is an explanatory cross-sectional view showing another embodiment of a needle hole device of a sewing machine having a needle through-hole having a circular opening centered on a vertical movement path of a sewing needle.
【図4】図3に示したミシンの針穴装置の針貫通穴を示
し、(a)は平面図、(b)は説明斜視図である。4A and 4B show a needle through hole of the needle hole device of the sewing machine shown in FIG. 3, wherein FIG. 4A is a plan view and FIG. 4B is an explanatory perspective view.
【図5】ミシンの針穴装置の他の実施例を示す図で、同
図(a)は当接部を傾斜する突出部により形成したミシ
ンの針穴装置を示す断面図、同図(b)は当接部を突出
部材を固定することで形成したミシンの針穴装置を示す
断面図である。5A and 5B are views showing another embodiment of the needle hole device of the sewing machine, and FIG. 5A is a cross-sectional view showing the needle hole device of the sewing machine formed by a projecting portion having an inclined contact portion, and FIG. () Is a cross-sectional view showing a needle hole device of the sewing machine in which the contact portion is formed by fixing a protruding member.
【図6】従来のミシンの針穴装置を示す説明側面図であ
る。FIG. 6 is an explanatory side view showing a conventional needle hole device of a sewing machine.
【図7】図6に示したミシンの針穴装置を備えたミシン
における縫い針の下降時を示す説明側面図である。7 is an explanatory side view of the sewing machine provided with the needle hole device of the sewing machine shown in FIG. 6, when the sewing needle is lowered.
【図8】図6に示したミシンの針穴装置を備えたミシン
における縫い針の上昇時を示す説明側面図である。8 is an explanatory side view of the sewing machine provided with the needle hole device of the sewing machine shown in FIG. 6 when the sewing needle is raised.
【図9】従来のミシンの針穴装置を備えたミシンを示す
他例の側面図である。FIG. 9 is a side view of another example showing a sewing machine provided with a conventional needle hole device of the sewing machine.
1 縫い糸 1a 糸ループ 3 回転釜 A ミシンの針穴装置 B 針貫通穴 C 当接部 N 縫い針 W 被縫製物 Reference Signs List 1 sewing thread 1a thread loop 3 rotary hook A needle hole device of sewing machine B needle through hole C contact part N sewing needle W sewing object
Claims (1)
イド部材と、 この針ガイド部材を着脱可能に支持する針板と、を有
し、 縫い針により形成される糸ル−プを回転釜の剣先が捕捉
可能なミシンの針穴装置において、 前記針ガイド部材の針貫通穴を、 縫い針の昇降経路の中心より回転釜の剣先側に偏奇した
針穴を含む円形穴と、 縫い針の昇降経路を間にして回転釜の剣先とは反対側の
円形穴内側面に、縫い針が保持する縫い糸と接する当接
部と、を備えて形成し、 この当接部と縫い糸とを接触させることにより、糸ル−
プを回転釜の剣先寄りに形成するようにしたことを特徴
とするミシンの針穴装置。 A needle needle having a needle through hole through which a sewing needle can be inserted.
And a needle plate for detachably supporting the needle guide member.
And the point of the rotary hook catches the thread loop formed by the sewing needle.
In a possible needle hole device of a sewing machine, the needle through-hole of the needle guide member is provided between a circular hole including a needle hole deviated from the center of the elevating path of the sewing needle toward the blade point of the rotary hook, and the elevating path of the sewing needle. The rotary hook has a contact portion in contact with the sewing thread held by the sewing needle on the inner surface of the circular hole on the opposite side of the sword tip of the rotary hook, and the thread portion is brought into contact with the contact portion and the sewing thread. −
A needle hole device for a sewing machine, wherein a buckle is formed near a sword of a rotary hook.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993053229U JP2592494Y2 (en) | 1993-09-30 | 1993-09-30 | Sewing machine needle hole device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993053229U JP2592494Y2 (en) | 1993-09-30 | 1993-09-30 | Sewing machine needle hole device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0724278U JPH0724278U (en) | 1995-05-09 |
JP2592494Y2 true JP2592494Y2 (en) | 1999-03-24 |
Family
ID=12936997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1993053229U Expired - Fee Related JP2592494Y2 (en) | 1993-09-30 | 1993-09-30 | Sewing machine needle hole device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2592494Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009055966A (en) * | 2007-08-30 | 2009-03-19 | Brother Ind Ltd | Sewing machine |
JP6443860B2 (en) * | 2015-01-07 | 2018-12-26 | 極東産機株式会社 | Sewing needle guide mechanism of tatami stitching device and tatami stitching device provided with sewing needle guide mechanism |
-
1993
- 1993-09-30 JP JP1993053229U patent/JP2592494Y2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0724278U (en) | 1995-05-09 |
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