JP3347821B2 - Needle plate of 2-needle double chain stitch machine - Google Patents
Needle plate of 2-needle double chain stitch machineInfo
- Publication number
- JP3347821B2 JP3347821B2 JP16176993A JP16176993A JP3347821B2 JP 3347821 B2 JP3347821 B2 JP 3347821B2 JP 16176993 A JP16176993 A JP 16176993A JP 16176993 A JP16176993 A JP 16176993A JP 3347821 B2 JP3347821 B2 JP 3347821B2
- Authority
- JP
- Japan
- Prior art keywords
- claw
- needle
- thickness
- double chain
- needle plate
- 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
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
- D05B73/04—Lower casings
- D05B73/12—Slides; Needle plates
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、２本針ミシンを用い
て、たとえばＪＩＳ Ｌ０１２０の表示記号４０６や６
０２などにみられるような二重環縫い目を形成するよう
になされた２本針二重環縫いミシンの針板に関するもの
である。The present invention relates to the use of a two-needle sewing machine, for example, with the display symbols 406 and 6 of JIS L0120.
The present invention relates to a needle plate of a two-needle double chain stitch sewing machine which forms a double chain stitch as seen in No. 02 or the like.
【０００２】[0002]
【従来の技術】この種の従来一般の針板は、図１０に示
すように、２本の針１０が出没する２つの針孔１１に続
く溝１２の間に、矢印Ａで示す生地送り出し側に向かう
爪１３を針板１４と一体的に形成して固定状態に設けて
おり、この爪１３の下面の先端は縫い目が抜け出やすい
ような斜面１３ａに形成されている。このような爪１３
は、縫い目１５の形成時やその直後において生地１６が
針１０の間に落ち込まないように保持するとともに、２
本の針糸１０ａ，１０ａそれぞれにより形成された縫い
目１５が下糸であるルーパー糸１７によって互いに引き
寄せられて、生地１６が蒲鉾状になるのを防ぎ、所定の
幅の縫い目１５を形成できるような働きを有するもので
ある。そして、薄い生地の縫製時にも、上記した爪１３
による機能を所定通りに発揮させるために、該爪１３の
作用部分の厚みをやや大きくして、針糸１０ａ，１０ａ
の下方への突出量を十分に確保させるようにしているの
が一般的である。2. Description of the Related Art As shown in FIG. 10, a conventional needle plate of this type has a cloth feeding side indicated by an arrow A between a groove 12 following two needle holes 11 in which two needles 10 appear and disappear. The claw 13 is formed integrally with the needle plate 14 and is provided in a fixed state. The tip of the lower surface of the claw 13 is formed on a slope 13a so that the seam can easily come off. Such a nail 13
Holds the cloth 16 so that the cloth 16 does not fall between the needles 10 at the time of forming the seam 15 or immediately thereafter,
The stitches 15 formed by the respective needle threads 10a, 10a are attracted to each other by the looper thread 17 serving as a lower thread, so that the cloth 16 is prevented from forming a semicircular shape, and the stitches 15 having a predetermined width can be formed. It has a function. And even when sewing thin cloth, the above-mentioned nail 13
In order to exhibit the function according to the predetermined, the thickness of the action portion of the claw 13 is slightly increased, and the needle thread 10a, 10a
In general, a sufficient amount of downward projection is ensured.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記のよう
な二重環縫製においては、例えば縫い終り端におけるほ
つれ防止などのために、図１０に示すように、縫製途中
で縫い目ピッチＰ１を通常時の縫い目ピッチＰに比べて
細かくするようなことがよく行なわれる。このような細
かいピッチＰ１での縫いが行なわれたとき、上記した従
来の爪１３の場合は、該爪１３に多数の縫い目１５が集
積されて絡み付くために、生地１６の進行に伴って縫い
目が爪１３から抜け出るのが遅れ気味となり、その結
果、針糸１０ａ，１０ａが十分に締められないままで縫
い目１５が形成されてしまい、図１１に示すように、生
地１６の下面において一方の針糸１０ａが大きく側方へ
はみ出して不良縫い目を形成するという問題があった。
特に、作用部分の厚みが大きい爪１３を用いた場合、そ
の不良縫い目の形成が顕著である。By the way, in the double chain sewing as described above, for example, in order to prevent fraying at the end of sewing, as shown in FIG. It is often performed to make the pitch finer than the stitch pitch P of. When the sewing is performed at such a fine pitch P1, in the case of the conventional nail 13 described above, a large number of seams 15 are accumulated on the nail 13 and become entangled. There is a slight delay in getting out of the claw 13, and as a result, the seam 15 is formed with the needle threads 10 a and 10 a not sufficiently tightened. As shown in FIG. There is a problem in that 10a largely protrudes laterally to form a defective seam.
In particular, when the nail 13 having a large acting portion is used, the formation of the defective stitch is remarkable.
【０００４】本発明は上記したような問題を解消するた
めになされたもので、縫製後に２つの針糸による縫目が
互いに引き寄せられて生地が蒲鉾状になることを防止で
きるのはもちろん、縫製途中で縫目ピッチを細かくした
場合でも、針糸の緩みおよび側方へのはみ出しを無くし
て、良好かつ美麗な縫い目を形成させることができる２
本針二重環縫いミシンの針板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 to solve the above-described problem, and it is possible to prevent the sewing of two needle threads from being attracted to each other after sewing and the cloth to be formed into a semi-cylindrical shape. Even if the stitch pitch is fined in the middle, it is possible to form a good and beautiful stitch without loosing the needle thread and protruding sideways.
It is an object of the present invention to provide a needle plate of a double needle stitch sewing machine.
【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、本発明に係る２本針二重環縫いミシンの針板は、２
本の針が出没する２つの針孔と、これら２つの針孔にそ
れぞれ続く溝の間に位置させて生地送り出し側に向かっ
て形成された爪とを備えている２本針二重環縫いミシン
の針板において、上記爪を上下に２分割し、そのうち上
側の爪を固定爪とするとともに、下側の爪を上記固定爪
の下面側で移動させて作用部分の厚みを大きくする状態
と厚みを小さくする状態とに切替え可能な可動爪にした
ことを特徴とするものである。In order to achieve the above object, a needle plate of a two-needle double chain stitch sewing machine according to the present invention comprises
A two-needle double chain stitch sewing machine including two needle holes in which two needles appear and disappear, and a claw formed between the grooves following the two needle holes and formed toward the material feeding side. In the needle plate of the above, the above-mentioned claw is divided into upper and lower portions, and the upper claw is used as the fixed claw, and the lower claw is moved on the lower surface side of the fixed claw to increase the thickness of the working portion and the thickness. The movable claw can be switched to a state in which is reduced.
【０００６】また、上記下側の可動爪に、該可動爪を上
側の固定爪の下面に沿って摺動させる、もしくは、上下
に移動または回動させて上記の２状態に切替える駆動機
構を連結させ、この駆動機構により上記可動爪を動かし
て爪全体の作用部分の厚みを変化させるようにすること
が望ましい。A drive mechanism for sliding the movable claw along the lower surface of the upper fixed claw or moving or rotating the movable claw up and down to switch to the above two states is connected to the lower movable claw. It is desirable that the movable claw be moved by this drive mechanism to change the thickness of the working portion of the entire claw.
【０００７】[0007]
【作用】本発明によれば、通常のピッチでの縫製時に
は、上記可動爪を爪全体の作用部分の厚みを大きくする
位置に配置することにより、縫製後に２本の針糸が互い
に引き寄せられて、生地が蒲鉾状になることのない良好
な縫製を行なえる。また、縫い終り端などのように、縫
製途中で縫い目ピッチを小さくするときは、可動爪を移
動させて爪全体の作用部分の厚みを小さくする状態に切
替えことにより、爪からの縫い目の抜け出しを容易にし
て、針糸の余分な弛みを発生させることがなくなり、こ
れによって、針糸の側方へのはみ出しをなくするととも
に、糸締まりもよくして、良好かつ美麗な縫い目を形成
することが可能となる。According to the present invention, at the time of sewing at a normal pitch, the movable needle is arranged at a position where the thickness of the working portion of the entire nail is increased, so that the two needle threads are drawn to each other after sewing. In addition, it is possible to perform a good sewing without the fabric being in a kamaboko shape. Also, when decreasing the stitch pitch during sewing, such as at the end of sewing, move the movable claw to switch to a state where the thickness of the working portion of the entire claw is reduced, so that the stitch escape from the claw. This makes it easy to prevent the needle thread from becoming excessively slack, thereby preventing the needle thread from protruding to the side and improving the thread tightness to form a good and beautiful seam. It becomes possible.
【０００８】特に、上記可動爪の固定爪に対する位置変
更動作を駆動機構を介して機械的、自動的に行なわせる
ことにより、縫い目ピッチに適応させて上述の爪作用部
分の厚みの変化を的確に行なえる。In particular, by changing the position of the movable claw with respect to the fixed claw mechanically and automatically via a drive mechanism, the change in the thickness of the above-mentioned claw action portion can be accurately adjusted in accordance with the stitch pitch. I can do it.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１は、本発明の第１実施例による２本針二重環
縫いミシンの針板全体を示す斜視図、図２は図１の要部
の拡大平面図、図３および図４は図２のＢ−Ｂ線および
にＣ−Ｃ線に沿った断面図である。これら各図におい
て、１は２本針二重環縫いミシンの針板であり、この針
板１には、２本の針２，２（図４）が出没する２つの針
孔３，３と、これら針孔３，３に続く２条の溝４，４
と、これら溝４，４を互いに連通接続する横溝５ならび
に上記２つの針孔３，３の両外側および後方にそれぞれ
生地送り歯用の長孔６が形成されているとともに、上記
２条の溝４，４の間には矢印Ａで示す生地送り出し側に
向かう爪７が形成されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an entire needle plate of a two-needle double chain stitch sewing machine according to a first embodiment of the present invention, FIG. 2 is an enlarged plan view of a main part of FIG. 1, and FIGS. FIG. 3 is a sectional view taken along lines BB and CC of FIG. In each of these figures, reference numeral 1 denotes a needle plate of a two-needle double chain stitch sewing machine. The needle plate 1 has two needle holes 3, 3 through which two needles 2, 2 (FIG. 4) appear and disappear. , Two grooves 4, 4 following these needle holes 3, 3
And a lateral groove 5 for connecting these grooves 4 and 4 to each other, and a long hole 6 for a cloth feed dog are formed on both outer side and rear side of the two needle holes 3 and 3, respectively. A claw 7 is formed between 4 and 4 toward the cloth feeding side indicated by an arrow A.
【００１０】上記爪７は、図３および図４で明示されて
いるように、上下に２分割されており、そのうち上側の
爪７Ａは上記針板１と一体的に形成された固定爪に構成
されているとともに、下側の爪７Ｂは上記固定爪７Ａの
下面に沿って前後に摺動可能な可動爪に構成されてい
る。この可動爪７Ｂの前端部に固定連結されて前方へ延
長された腕８の前端部分８ａを下方へ折り曲げ、その折
曲げ前端部８ａと上記針板１の下面に固定支持された駆
動機構としてのエアシリンダ９のピストンロッド９ａと
が連結されており、このエアシリンダ９の伸縮駆動によ
り上記可動爪７Ｂを前後に摺動させることによって、可
動爪７Ｂを上記固定爪７Ａの下面に重ねて爪７全体の作
用部分の厚みを大きくする状態と、上記固定爪７Ａの下
面から前方へ離間させて爪７全体の作用部分の厚みを小
さくする状態とに切替え可能にしている。As shown in FIGS. 3 and 4, the claw 7 is vertically divided into two parts, and the upper claw 7A is a fixed claw integrally formed with the needle plate 1. The lower claw 7B is a movable claw that can slide back and forth along the lower surface of the fixed claw 7A. The front end portion 8a of the arm 8 fixedly connected to the front end of the movable claw 7B and extended forward is bent downward, and the drive mechanism is fixedly supported on the bent front end 8a and the lower surface of the needle plate 1. The movable claw 7B is slid forward and backward by the expansion and contraction drive of the air cylinder 9 so that the movable claw 7B is overlapped with the lower surface of the fixed claw 7A and the claw 7a is connected to the piston rod 9a of the air cylinder 9. It is possible to switch between a state in which the thickness of the entire working portion is increased and a state in which the thickness of the entire working portion of the claw 7 is reduced by being separated from the lower surface of the fixed claw 7A forward.
【００１１】上記可動爪７Ｂおよび固定爪７Ａの下面の
先端はそれぞれ縫い目が抜け出やすいような斜面７ａ，
７ｂに形成されているとともに、上記可動爪７Ｂが最も
前進したとき、それら斜面７ａ，７ｂが図３に示すよう
に面一となるようになされている。なお、この第１実施
例においては、２本の針２，２の間隔Ｌが４．８ｍｍ、
針板１の厚みＴが３．８ｍｍ、固定爪７Ａの厚みｔ１が
１ｍｍ、可動爪７Ｂの厚みｔ２が２．５ｍｍ、その幅ｌ
が４ｍｍに設定されている。The lower ends of the movable claw 7B and the fixed claw 7A have inclined surfaces 7a,
7b, the inclined surfaces 7a and 7b are flush with each other when the movable claw 7B is moved forward most as shown in FIG. In the first embodiment, the distance L between the two needles 2, 2 is 4.8 mm,
The thickness T of the needle plate 1 is 3.8 mm, the thickness t1 of the fixed claw 7A is 1 mm, the thickness t2 of the movable claw 7B is 2.5 mm, and its width l.
Is set to 4 mm.
【００１２】上記構成の第１実施例においては、例えば
薄い生地に対する通常ピッチＰでの縫製時には、図５に
示すように、上記固定爪７Ａの下面に可動爪７Ｂを重ね
て爪７全体の作用部分の厚みを３．５ｍｍと大きくして
使用することにより、縫製後に２本の針糸が互いに引き
寄せられて、生地１６が蒲鉾状になることのない良好な
縫製が行なえる。また、縫い終り端などのように、縫い
目ピッチＰ１を細かくするときは、図６に示すように、
エアシリンダ９および腕８を介して可動爪７Ｂを矢印の
方向に摺動させ、固定爪７Ａの下面から離間させて爪７
の作用部分の厚みを１ｍｍと小さくする状態に切替えこ
とにより、爪７からの縫い目１５の抜け出しを容易にし
て、針糸１０ａ，１０ａが余分に弛んだり、針糸１０ａ
の側方へのはみ出しをなくするとともに、糸締まりもよ
くして、図７に示すような良好かつ美麗な縫い目を形成
することができる。In the first embodiment having the above structure, for example, when sewing a thin cloth at a normal pitch P, as shown in FIG. 5, a movable claw 7B is superimposed on the lower surface of the fixed claw 7A to operate the entire claw 7. By using the portion having a large thickness of 3.5 mm, the two needle threads are attracted to each other after sewing, so that good sewing can be performed without the fabric 16 having a semi-cylindrical shape. Also, when the stitch pitch P1 is to be fine, such as at the end of the stitch, as shown in FIG.
The movable pawl 7B is slid in the direction of the arrow through the air cylinder 9 and the arm 8 so as to be separated from the lower surface of the fixed pawl 7A,
By switching to a state in which the thickness of the action portion is reduced to 1 mm, the seam 15 can be easily pulled out from the claw 7, the needle threads 10 a, 10 a become excessively slack, and the needle thread 10 a
, And the thread tightness is improved, so that a good and beautiful seam as shown in FIG. 7 can be formed.
【００１３】図８は本発明の第２実施例による２本針二
重環縫いミシンの針板の要部を拡大して示す縦断面図で
あり、固定爪７Ａは上記第１実施例と同様に、針板１と
一体的に形成されており、一方、可動爪７Ｂは縦向き姿
勢に配置して針板１に固定支持させたエアシリンダ１９
のピストンロッド１９ａに直結されており、該エアシリ
ンダ１９の伸縮駆動により上記可動爪７Ｂを上下に移動
させることによって、可動爪７Ｂを上記固定爪７Ａの下
面に密着させて爪７全体の作用部分の厚みを小さくする
状態と、上記固定爪７Ａの下面から下方へ離隔させて爪
７全体の作用部分の厚みを大きくする状態とに切替え可
能になしたものである。その他の構成は上記第１実施例
と全く同一であり、また、作用も可動爪７Ｂが上下に移
動する以外は全く同様である。FIG. 8 is an enlarged longitudinal sectional view showing a main part of a needle plate of a two-needle double chain stitch sewing machine according to a second embodiment of the present invention. The air cylinder 19 is formed integrally with the needle plate 1, while the movable claw 7B is arranged in a vertical position and fixedly supported by the needle plate 1.
The movable claw 7B is moved up and down by the expansion and contraction drive of the air cylinder 19, whereby the movable claw 7B is brought into close contact with the lower surface of the fixed claw 7A, and the working portion of the entire claw 7 is actuated. The thickness can be switched between a state in which the thickness of the claw 7 is reduced and a state in which the thickness of the entire working portion of the claw 7 is increased by being separated downward from the lower surface of the fixed claw 7A. The other configuration is exactly the same as that of the first embodiment, and the operation is exactly the same except that the movable claw 7B moves up and down.
【００１４】図９は本発明の第３実施例による２本針二
重環縫いミシンの針板の要部を拡大して示す縦断面図で
あり、固定爪７Ａは上記第１実施例と同様に、針板１と
一体的に形成されており、一方、可動爪７Ｂはその一端
部側において針板１の上面下側に支軸２０を介して回動
自在に枢着されているとともに、縦向き姿勢に配置して
針板１に固定支持させたエアシリンダ２１のピストンロ
ッド２１ａの上端部が可動爪７Ｂから一体に突出させた
突片７の下面に当接されており、該エアシリンダ２１の
伸縮駆動により上記可動爪７Ｂを支軸２０の周りで上下
に回動させることによって、可動爪７Ｂを２点鎖線で示
すように、上記固定爪７Ａの下面に密着させて爪７全体
の作用部分の厚みを小さくする状態と、実線で示すよう
に上記固定爪７Ａの下面から下方へ離隔させて爪７全体
の作用部分の厚みを大きくする状態とに切替え可能にな
したものである。その他の構成は上記第１実施例と全く
同一であり、また、作用も可動爪７Ｂが上下に移動する
以外は全く同様である。FIG. 9 is an enlarged longitudinal sectional view showing a main part of a needle plate of a two-needle double chain stitch sewing machine according to a third embodiment of the present invention. On the other hand, the movable claw 7B is rotatably pivotally mounted on the lower end of the upper surface of the needle plate 1 via a support shaft 20 at one end thereof, The upper end of the piston rod 21a of the air cylinder 21, which is disposed in a vertical position and fixedly supported on the needle plate 1, is in contact with the lower surface of the protruding piece 7 integrally protruding from the movable claw 7B. By moving the movable claw 7B up and down around the support shaft 20 by the expansion and contraction drive of the 21, the movable claw 7B is brought into close contact with the lower surface of the fixed claw 7A as shown by a two-dot chain line, and The state where the thickness of the action portion is reduced and the above-mentioned fixing claw 7A as shown by a solid line. From the lower surface by spaced downward is obtained without the switchable to a state of increasing the thickness of the working part of the whole nail 7. The other configuration is exactly the same as that of the first embodiment, and the operation is exactly the same except that the movable claw 7B moves up and down.
【００１５】なお、上記各実施例では、可動爪７Ｂの駆
動機構としてエアシリンダを使用したが、それ以外に電
磁ソレノイドやねじ機構などを用いてもよい。また、上
記第１実施例に示した各部の寸法は一例であって、これ
に限られるものでないのは当然である。In each of the above embodiments, an air cylinder is used as a drive mechanism of the movable claw 7B, but an electromagnetic solenoid or a screw mechanism may be used instead. Further, the dimensions of each part shown in the first embodiment are merely examples, and it is a matter of course that the present invention is not limited to these dimensions.
【００１６】[0016]
【発明の効果】以上のように、本発明によれば、通常の
ピッチでの縫製時には、爪全体の作用部分の厚みを大き
くして使用することにより、縫製後に２本の針糸の縫い
目が互いに引き寄せられて、生地が蒲鉾状になることを
防ぎ、良好な縫製を行なうことができる。また、縫い終
り端などのように、縫製途中で縫い目ピッチを細かくす
るときは、可動爪を移動させて爪の作用部分の厚みを小
さくする状態に切替えて使用することにより、爪からの
縫い目の抜け出しを容易にして、針糸に余分な弛みを発
生したり、針糸が側方へはみ出すことをなくするととも
に、糸締まりもよくして、良好かつ美麗な縫い目を形成
することができる。As described above, according to the present invention, at the time of sewing at a normal pitch, the thickness of the working portion of the entire claw is increased to be used, so that the stitches of two needle threads can be formed after sewing. It is possible to prevent the fabric from being drawn into each other to form a kamaboko shape and to perform good sewing. Also, when the stitch pitch is to be reduced during sewing, such as at the end of stitching, the movable claw is moved to reduce the thickness of the action portion of the claw and used to reduce the stitch from the claw. It is possible to easily remove the needle thread, prevent the needle thread from becoming excessively slack, and prevent the needle thread from protruding to the side, and improve the thread tightness to form a good and beautiful seam.
【００１７】また、上記可動爪の固定爪に対する位置変
更動作を駆動機構を介して機械的、自動的に行なわせる
ことにより、縫い目ピッチに適応させて上述の爪作用部
分の厚みの変化を的確かつ能率よく行なうことができ
る。特に、可動爪を上下に移動または回動させる形式の
場合は、この可動爪が占有する平面スペースを少なくす
ることが可能で、例えば可動爪の手前に生地送り歯を設
ける空間を確保できるという効果も奏する。Further, by changing the position of the movable claw with respect to the fixed claw mechanically and automatically via a drive mechanism, the change in the thickness of the above-mentioned claw acting portion can be accurately determined in accordance with the stitch pitch. It can be performed efficiently. In particular, in the case of a type in which the movable claw is moved or rotated up and down, it is possible to reduce the plane space occupied by the movable claw, and for example, it is possible to secure a space for providing the cloth feed dog in front of the movable claw. Also play.
【図１】本発明の第１実施例による２本針二重環縫いミ
シンの針板全体を示す斜視図である。FIG. 1 is a perspective view showing an entire needle plate of a two-needle double chain stitch sewing machine according to a first embodiment of the present invention.
【図２】図１の要部の拡大平面図である。FIG. 2 is an enlarged plan view of a main part of FIG.
【図３】図２のＢ−Ｂ線に沿った断面図である。FIG. 3 is a sectional view taken along line BB of FIG. 2;
【図４】図２のＣ−Ｃ線に沿った断面図である。FIG. 4 is a sectional view taken along the line CC of FIG. 2;
【図５】爪の厚みを大きくした使用状態での縫製動作を
示す要部の縦断側面図である。FIG. 5 is a vertical sectional side view of a main part showing a sewing operation in a use state in which the thickness of the nail is increased.
【図６】爪の厚みを小さくした使用状態での縫製動作を
示す要部の縦断側面図である。FIG. 6 is a vertical sectional side view of a main part showing a sewing operation in a use state in which the thickness of the nail is reduced.
【図７】第１実施例によって縫製された生地の縫い目の
状態を示す下面図である。FIG. 7 is a bottom view showing a seam state of the fabric sewn according to the first embodiment.
【図８】本発明の第２実施例による２本針二重環縫いミ
シンの針板の要部を拡大して示す縦断面図である。FIG. 8 is an enlarged longitudinal sectional view showing a main part of a needle plate of a two-needle double chain stitch sewing machine according to a second embodiment of the present invention.
【図９】本発明の第３実施例による２本針二重環縫いミ
シンの針板の要部を拡大して示す縦断面図である。FIG. 9 is an enlarged longitudinal sectional view showing a main part of a needle plate of a two-needle double chain stitch sewing machine according to a third embodiment of the present invention.
【図１０】従来の針板を使用したときの縫製状態を説明
する要部の縦断側面図である。FIG. 10 is a longitudinal sectional side view of a main part illustrating a sewing state when a conventional needle plate is used.
【図１１】従来の針板の使用によって縫製された生地の
縫い目の状態を示す下面図である。FIG. 11 is a bottom view showing a state of seams of a fabric sewn by using a conventional needle plate.
１ 針板 ２ 針 ３ 針孔 ４ 溝 ７ 爪 ７Ａ 固定爪 ７Ｂ 可動爪 ９，１９，２１ エアシリンダ（駆動機構） １５ 縫い目 １６ 生地 1 Needle plate 2 Needle 3 Needle hole 4 Groove 7 Claw 7A Fixed claw 7B Movable claw 9, 19, 21 Air cylinder (drive mechanism) 15 Seam 16 Fabric
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−291892（ＪＰ，Ａ) 実開 昭62−39682（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) D05B 1/00 - 97/12 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-291892 (JP, A) JP-A 62-39682 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) D05B 1/00-97/12
Claims (2)
ら２つの針孔にそれぞれ続く溝の間に位置させて生地送
り出し側に向かって形成された爪とを備えている２本針
二重環縫いミシンの針板において、上記爪を上下に２分
割し、そのうち上側の爪を固定爪とするとともに、下側
の爪を上記固定爪の下面側で移動させて作用部分の厚み
を大きくする状態と厚みを小さくする状態とに切替え可
能な可動爪にしたことを特徴とする２本針二重環縫いミ
シンの針板。1. A two-hole comprising two needle holes in which two needles appear and disappear, and a claw formed between grooves following each of the two needle holes and formed toward a cloth feeding side. In the needle plate of the needle double chain stitch sewing machine, the above-mentioned claw is divided into upper and lower portions, and the upper claw is used as the fixed claw, and the lower claw is moved on the lower surface side of the fixed claw to thereby obtain the thickness of the working portion. A needle plate of a two-needle double chain stitch sewing machine having a movable claw that can be switched between a state in which the thickness is increased and a state in which the thickness is reduced.
の固定爪の下面に沿って摺動させる、もしくは、上下に
移動または回動させて上記の２状態に切替える駆動機構
が連結されている請求項１記載の２本針二重環縫いミシ
ンの針板。2. The lower movable claw has a drive mechanism that slides the movable claw along the lower surface of the upper fixed claw, or moves or rotates up and down to switch between the two states. The needle plate of the two-needle double chain stitch sewing machine according to claim 1, which is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16176993A JP3347821B2 (en) | 1993-06-30 | 1993-06-30 | Needle plate of 2-needle double chain stitch machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16176993A JP3347821B2 (en) | 1993-06-30 | 1993-06-30 | Needle plate of 2-needle double chain stitch machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0716365A JPH0716365A (en) | 1995-01-20 |
| JP3347821B2 true JP3347821B2 (en) | 2002-11-20 |
Family
ID=15741556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16176993A Expired - Fee Related JP3347821B2 (en) | 1993-06-30 | 1993-06-30 | Needle plate of 2-needle double chain stitch machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3347821B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1116811A1 (en) * | 1999-12-15 | 2001-07-18 | Johannes Sahl | Needle plate for an interlock sewing machine with two or three needles |
| JP4616512B2 (en) * | 2001-06-01 | 2011-01-19 | グンゼ株式会社 | Needle plate structure in flat stitched multi-needle sewing machine |
| JP6374745B2 (en) * | 2014-09-29 | 2018-08-15 | Juki株式会社 | sewing machine |
| WO2018105405A1 (en) * | 2016-12-08 | 2018-06-14 | 東海工業ミシン株式会社 | Sewing machine |
-
1993
- 1993-06-30 JP JP16176993A patent/JP3347821B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0716365A (en) | 1995-01-20 |
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