JP2005015945A

JP2005015945A - Compound needle

Info

Publication number: JP2005015945A
Application number: JP2003180861A
Authority: JP
Inventors: Toshiaki Morita; 敏明森田
Original assignee: Shima Seiki Mfg Ltd
Current assignee: Shima Seiki Mfg Ltd
Priority date: 2003-06-25
Filing date: 2003-06-25
Publication date: 2005-01-20
Anticipated expiration: 2023-06-25
Also published as: DE602004016849D1; JP3983720B2; EP1640489A1; EP1640489A4; WO2005001186A1; EP1640489B1; ATE409770T1

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a slider butt from leaping up by force applied to a tongue. <P>SOLUTION: The compound needle has constitution that a branch part 10 is arranged at the middle part in the length direction of a needle member 3, a first fork 12 projected to a hook 8 side, a second fork 14 projected to the rear side and a third fork 16 facing the second fork 14 are installed. The tongue 32 is laid at the tip of a slider 30, a front solid part 38 is equipped with a first fork contact cam surface 39, the vertical movement of the slider 30 is controlled by the first fork 12, a second and a third fork contact surfaces 44 and 46 are formed at the front and the rear of a rear solid part 40 and the vertical movement of the slider 30 is controlled by the second fork 14 and the third fork 16. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の利用分野】
この発明は横編機等の編機に使用する複合針に関し、特に針部材に対するスライダのガイドに関する。
【０００２】
【従来技術】
【特許文献１】特開２００２−２９４５４１号公報
【特許文献２】特開２００１−０３２１５４号公報
【特許文献３】特開昭６２−２０６０６９号公報
【０００３】
特許文献１〜３は複合針について記載している。特許文献１では、針部材の長手方向中間部から分岐し、針部材先端のフック側へ延びるフォークを設けて、スライダをフォークの下面と針部材の上面とでガイドすることを開示している。スライダの後部にはスライダバットを設けて、スライダ後端の下端一対の支持部を設け、これらの支持部で針部材を挟み込むようにしている。なおこれらの支持部は、スライダに設けた突起と考えられる。
特許文献２は類似の種類の複合針を開示しているが、針部材にフォークを設けてスライダを挟み込むのではなく、スライダの上面を針床の帯金で支持するようにしている。
特許文献３は、針部材とスライダとに各々フォークを設け、これらのフォークを互いに係合させて、スライダの位置決めを行うようにしている。
【０００４】
特許文献１のように、スライダ先端のタングがステッチループを支持すると、スライダの後端を跳ね上げる力が加わる。これに対して前記の一対の支持部で、スライダの後端が上昇するのを防止する。発明者はここで、スライダの後端の下部に設けた一対の支持部では、スライダの後部を跳ね上げようとする力を充分に支持するのは難しく、複合針の寿命を縮め、またスライダバットの高さを正確に規制するのが難しいことを見出した。
【０００５】
【発明の課題】
この発明の課題は、スライダの後部に設けたバットが上昇するのを防止することにある。
この発明の副次的課題は、針部材の強度を増し、また針部材の加工を容易にすることにある。
この発明の副次的課題はまた、第２フォークや第３フォークに対するスライダの進退入を容易にすることにある。
この発明の副次的課題はさらに、スライダのタングを撓ませようとする力への剛性を増すことにある。
【０００６】
【発明の構成】
この発明は、先端にフックを備えた針部材と、該針部材を跨いで摺動しかつ先端にタングを備えたスライダとを備え、前記針部材と前記スライダとは独立に移動自在で、編目の形成と編目の目移しとが可能な複合針において、
前記針部材には、
前記スライダに跨られる領域のほぼ中間部から上方へ分岐する分岐部から、前記フック側へ突き出す第１フォークを設けて、前記スライダの前半部を該第１フォークと針部材との間に挟み込み、かつ前記第１フォークの下面でスライダをガイドし、スライダ前半部の上下動を規制するようにし、
前記分岐部から針部材の後方上部へ、スライダのバット側へと突き出す第２フォークを設けて、スライダが針部材に対して前進した位置で、該第２フォークの下面でスライダをガイドし、
針部材の前記スライダのバットよりも後方から前方へ分岐し、前記第２フォークと向かい合う第３フォークを設けて、前記スライダが針部材に対して後退した位置で、該第３フォークの下面でスライダをガイドし、
前記第２フォーク及び第３フォークにより、スライダの後半部の上下動を規制するようにし、
前記スライダは、
その後半部に前記スライダのバットを備え、
該スライダのバットよりも前方に、上下に貫通するスリットを備えて、該スリットに前記針部材の分岐部を貫通させ、
前記スライダ前半部は該貫通スリットよりも前方に位置し、かつ該スライダ前半部の上面に、前記第１フォークの下面にガイドされる第１フォーク当接カム面を設け、
スライダの後半部の前記スライダのバットよりも前方の上面に、前記第２フォークの下面にガイドされる第２フォーク当接面を設け、
前記スライダのバットよりも後方のスライダ後端の上面に、前記第３フォークの下面にガイドされる第３フォーク当接面を設けたことを特徴とする。
【０００７】
この明細書において、前後は複合針の長手方向で、フックやタング側が前で、スライダバットや第３フォーク側が後である。上下は、複合針を針床にセットした状態を基に定め、スライダが針部材の上にあって針部材に跨り、第１フォークや第２フォークがスライダの上にあって、スライダを針部材との間に挟み込む。左右や側面方向は長手方向にも上下方向にも直角な方向で、例えば貫通スリットの左右のスライダの薄板や、スカート部の左右の薄板などを指すために用いる。
【０００８】
好ましくは、前記スライダの後半部は、前記第３フォーク当接面から前記第２フォーク当接面まで、中実にほぼ同じ厚さに形成されている。
また好ましくは、前記スライダは、前記第２フォーク当接面の下方から前記貫通スリットまで側面方向に左右２枚に分かれ、前記貫通スリットの部分でスライダの上面と下面とをカットして前記貫通スリットを形成している。
【０００９】
好ましくは、前記第２フォークの後端部に、後上方から前下方を向いた斜めのテーパー部を設けると共に、
前記第３フォークの前端部に、前上方から後下方を向いた斜めのテーパー部を設け、
前記第２フォーク当接面の前端に、後上方から前下方を向いた斜めのテーパー部を設け、
前記第３フォーク当接面の後端に、前上方から後下方を向いた斜めのテーパー部を設ける。
【００１０】
好ましくは、前記針部材の前記フックよりも後方に、針部材の上面が上に凸に膨出した膨出部を形成し、
前記スライダー前半部は、その上部を中実に形成し、その下部を２枚に分かれたスカート部に形成し、
前記タングが前記フックを閉じた際に、前記膨出部のフック側の部分で、前記スカート部上の中実な部分の底部に設けた支持部を支持する。
【００１１】
特に好ましくは、前記スライダー前半部は、前記支持部の周囲で前記中実の部分の底部が上に凹な凹部をなし、かつ前記中実な部分のフック側先端での前上方から後下方への境界線よりも後方に、前記凹部を設ける。
【００１２】
【発明の作用と効果】
この発明の作用効果を説明する。針部材がスライダから前進し、フックが前進すると、第１フォークの下面からスライダの前半部を下側に押す力が働き、これに伴ってスライダ後部のスライダバットには上側に押し上げる力が作用する。このとき、第３フォークがスライダの後端上面に設けた第３フォーク当接面を支持することにより、スライダバットの上昇を防止する。またフックが後退し、スライダ先端のタングがフックを閉じた状態では、フック上のステッチループからの力などにより、スライダバットには上側に跳ね上げる力が作用する。この力は、スライダの第２フォーク当接面が針部材の第２フォークに当接することにより支持され、スライダバットの跳ね上がりを防止できる。これらのため、スライダバットの不用意な上昇を防止できるので、スライダバットの高さを正確に規制でき、スライダの操作が簡単になる。スライダバットの高さ規制は、第２フォークや第３フォーク、並びに第２フォーク当接面や第３フォーク当接面で行われ、これらの部材は強固に形成できるので、信頼性が高くかつ複合針の耐久性が増す。
【００１３】
スライダの後半部を、第３フォーク当接面から第２フォーク当接面まで中実にほぼ同じ厚さで形成すると、この部分の強度が増し、スライダの耐久性が増す。
【００１４】
スライダの第２フォーク当接面の下方から貫通スリットの部分まで、スライダを側面方向の左右２枚に分割し、貫通スリットの部分でスライダの上面と下面とをカットする。このようにすると切削加工により、簡単にスライダを構成できる。さらに第２フォーク当接面の下方でスライダを左右２枚に分割すると、スライダバットの付近の中実部分と、貫通スリットの付近の左右２枚に分かれた部分との境界を長い範囲に渡ってとることができ、この境界に応力が集中して破損するのを防止できる。
【００１５】
第２フォークの後端部や、第２フォーク当接面の前端部に、後上方から斜めに前下方を向いたテーパー部を設けると、第２フォーク当接面を第２フォークの下側に滑らかにガイドできる。また同様に、第３フォークの前端部や第３フォーク当接面の後端部に、前方向から斜めに後下方を向いたテーパー部を設けると、第３フォーク当接面を滑らかに第３フォークの下面にガイドできる。
【００１６】
タングがステッチループを保持した状態でフックを閉じた位置で、タングにはステッチループから横方向に撓ませようとする力などが働く。これに対して好ましくは、針部材の上面の膨出部のフック側の部分で、針部材の上面によりスカート部上の中実部分の底部を支持する。なお針部材の上面が中実部分の底部を支持する位置を支持部という。するとタングと支持部との距離が短いため、タングの剛性を高めて、撓み変形などを防止できる。このため硬い編糸を用いた編地や、目の詰まった編地の編成が容易になる。
【００１７】
スライダ前半部の中実部分のフック側の前上方から後下方への境界線を考える。この境界線は、２枚に分かれたタングやスカート部と中実部分との境界線である。そしてこの境界線よりも後方に、中実部分の底部に上に凹な凹部を設け、支持部とする。そしてタングがフックを閉じた際に、膨出部のフック寄りの部分が支持部としての凹部と接触してスライダの中実部分の底部を支持すると、凹部をタングから比較的近い位置に設けることができ、タングの剛性を高めることができる。
【００１８】
【実施例】
図１〜図１１に、実施例とその変形とを示す。図１，図２に、針部材の最初の例を示す。針部材２は本体部４と延長部６とで構成され、その先端にフック８があり、本体部４の中央付近に分岐部１０が設けられ、分岐部１０は本体部４から上側に分岐している。分岐部１０の前側に第１フォーク１２が設けられ、その下面にスライダの上面をガイドするためのガイド部１３が設けられている。分岐部１０から後側へ第２フォーク１４が分岐し、その下面にガイド面１５が設けられている。本体部４の後端付近から針部材２が上側に曲がり、前側へ第３フォーク１６が突き出している。第３フォーク１６の下面がガイド面１７である。第２フォーク１４の後端には、斜め後上方から斜め前下方へとテーパー部１８が設けられ、第３フォーク１６の先端には、斜め前上方から斜め後下方へとテーパー部１９が設けてある。
【００１９】
この明細書において、前後は針部材２やスライダ３０の長手方向に沿って定め、フック８が前側で、第３フォーク１６などがある側が後側である。また針部材２は図示しない針床に収容されて前後に摺動し、図１，図３，図５の下側が下、これらの図の上側が上である。針部材２の側面は、図２の長手方向に沿った２つの側面を意味する。なおスライダ３０の場合、図４の上下の２つの側面が左右の側面である。
【００２０】
針部材２で、フック８よりもやや後方で、上側に向けて高さが増している部分がチーク２０である。チーク２０には窪み部２１を設けて、その上部（針部材の上面）を上側に膨らませて、上に凸な膨出面２２とする。膨出面２２中のフック８寄りの部分が、スライダ３０のタング３２でフック８を閉じた際に、スライダの中実部３８の底部を支持する。窪み部２１は、図２に示すように、チーク２０の部分で針部材２に窪み加工を行うことで設けられ、窪み部２１は例えば長方形状で、フック８側を前方として、後下方から前上方へと斜め向きである。そしてフック８が全開（図８）の際に、タング３２，３２を針部材２の左右の窪み部２１，２１に沈み込ませて、タング３２，３２が針部材２の側面から張り出さないようにする。２３は針部材２を前後進させるためのニードルバットを、模式的に示したものである。
【００２１】
図１，図２の針部材２はかなりの長さがあり、加工も難しいし、スライダ３０を嵌め合わせるのも手間がかかる。図３の針部材３は、本体部５とニードルジャック７とを別体にしたもので、嵌合凹部２４は本体部５に設けられ、嵌合凸部２５はニードルジャック７に設けられ、これらを嵌合させて、本体部５とニードルジャック７とを一体にする。なお本体部５側に嵌合凸部を設け、ニードルジャック７側に嵌合凹部を設けてもよい。そして図３の針部材３の場合、第３フォーク１６はニードルジャック７側に設けてあるため、スライダ３０の着脱が容易で、製造も容易である。
【００２２】
針部材２と針部材３の相違点は、本体部とニードルジャックの２つに分割するか、これらを一体にするかである。これ以外の点では針部材２，３は同様で、針部材２に関する説明は針部材３にも当てはまり、針部材３に関する説明は針部材２にも当てはまる。また実施例において、同じ符号を用いた部材は同じものを表す。
【００２３】
図４，図５にスライダ３０を示す。スライダ３０の先端には、左右一対のタング３２，３２があり、その間にはスリット３３が設けてある。タング３２，３２はスリット３３を中心にして左右に間隔を開けて設けられ、その先端で互いに当接するように曲げ加工が施されており、スリット３３に他のスライダのタングやフックを挿入することができる。タング３２のやや後方には、上側に盛り上がったノーズ３４があり、タング３２で保持するステッチループが、ノーズ３４より後ろへ移動しないようにしてある。スライダ３０の中央には貫通スリット部３６が設けられ、スライダ３０はこの部分で左右２枚に分かれて、その間が貫通スリット３７である。貫通スリット部３６が左右に膨らんでいるのは、針床での針溝の壁面などとの間に摩擦を持たせ、スライダ３０が妄動するのを防止するためである。貫通スリット３６部の前後には、前方の中実部３８と後方の中実部４０とが設けられ、これらの部分でスライダ３０は中実であり、中実部３８や中実部４０はそれぞれ肉厚が一定である。
【００２４】
中実部３８の上面には第１フォーク当接カム面３９が設けられ、第１フォーク１２の下面のガイド部１３と当接して、中実部３８の上下動を規制する。また中実部３８の前側と下側で、スライダ３０は左右２枚に分けられて、タング３２やノーズ３４とスカート部４１をなしている。スカート部４１は、第１フォーク１２の下側に対向する部分からチーク２０の部分で、本体部４，５に跨って摺動する。そして前記の膨出面２２は、中実部３８の底面を支持することにより、スライダの前半部が沈み込むのを防止する。
【００２５】
後方の中実部４０の中央には、上方に突き出たスライダバット４２があり、その前側に第２フォーク当接面４４があり、第２フォーク当接面４４の前端は、後上方から前下方へと斜めのテーパー部４５をなしている。スライダバット４２の後方には、第３フォーク当接面４６が設けられ、その後端は前上方から後下方へと斜めのテーパー部４７をなしている。中実部４０と貫通スリット部３６との境界線４８は、第２フォーク当接面４４にほぼ並行で、境界面４８の長さが大きいため、境界面４８に加わる応力を分散することができる。
【００２６】
図６に、スライダ３０の前半の中実部３８の周囲を拡大して示す。境界線５０は中実部３８の前方の斜めの境界線で、前方にはタング３２とノーズ３４とがある。境界線５０の後方に上に凹な凹部５２があり、凹部５２の前半に支持部５３があり、タング３２がステッチループを保持して、フック８を閉じた際に、膨出面２２とコンタクトして、タング３２の撓み変形を防止する。このようにすると、膨出面２２が窪み部２１の前半上方にあり、支持部５３とタング３２との距離が短いので、タング３２の剛性を高めることができる。
【００２７】
図７に、第２フォーク１４や第３フォーク１６と、第２フォーク当接面４４や第３フォーク当接面４６の関係を示す。スライダ３０が前進した位置では、第２フォーク当接面４４が第２フォーク１４により支持され、スライダ３０が後退した位置では、第３フォーク当接面４６が第３フォーク１６により支持される。第２フォーク当接面４４が第２フォーク１４と当接し、あるいは第３フォーク当接面４６が第３フォーク１６と当接する際には、テーパー部１８，４５やテーパー部１９，４７などにより中実部４０がガイドされる。また中実部４０は、第３フォーク当接面４６から第２フォーク当接面４４までの広い範囲で同じ板厚で中実なので、強度は高い。そして中実部４０と貫通スリット部３６との境界の応力は、境界線４８を長くとることで分散される。
【００２８】
図８〜図１０に、複合針の３つの状態を示す。なお６０は針床側の帯金で、第１フォーク１２や第２フォーク１４の上面と当接して、複合針が針床の針溝から浮き上がるのを防止する。
【００２９】
図８のように、フック８が最前進し、針部材に対してスライダ３０が最後退した状態を示す。この時、第１フォーク１２の下面にあるガイド部１３から、第１フォーク当接カム面３９を下側に押し込む力が加わり、この力がスライダバット４２を上昇させるように作用する。これに対して、第３フォーク１６に第３フォーク当接面４６が当接することにより、スライダバット４２が上昇するのを防止する。この時、タング３２は針本体２の左右の窪み部２１に沈み込んで、針本体２の側面に張り出さないようにしてある。そしてこのことは、フック８上のステッチをタング３２へ移し替えるのを容易にする。
【００３０】
図９のように、タング３２がフック８を閉じた状態では、タング３２が保持しているステッチループなどからの力により、スライダバット４２を上側に跳ね上げようとする力が作用する。この力は第２フォーク当接面４４と第２フォーク１４とにより支持され、スライダバット４２の不用意な上昇を防止する。このことは図１０のように、タング３２がさらに前進した場合も同様で、図１０はスライダ３０が針部材３に対して最前進した状態を示す。
【００３１】
図９の状態を拡大して図１１に示す。タング３２にはステッチループ６２が保持されており、ニードルベッドのラッキング動作や編地の引き下げなどにより編地にテンションがかかるため、タング３２には左右方向の力が加わる。またこれ以外にタング３２にはステッチループ６２から下向きの力が加わる。タング３２では、スライダ３０が左右２枚に分かれているので、その剛性は低い。これは、タング３２，３２の隙間に他の複合針のタングやフックなどを挿入して、ステッチループの移動などを行うために必要なことである。中実部３８の前方斜めの境界線５０よりもやや後ろに、前記の支持部５３があり、これが針部材３側の膨出面２２と当接して、中実部３８の底面を支持する。このようにすると支持部５３からタング３２までの距離を短くなるので、タング３２の撓み変形を防止できる。
【００３２】
実施例では以下の効果が得られる。
（１）第１〜第３フォークと、第１フォーク当接カム面や第２及び第３フォーク当接面により、スライダの上下動を規制できる。特にスライダバットを上昇させようとする力を、第２フォークや第３フォークなどにより規制し、スライダバットの高さを正確に規制できる。
（２）第３フォークからスライダバット、第２フォークまでの部分が中実に同じ肉厚で形成されているので、この部分の強度が高い。
（３）タングにステッチループから加わる力に対して、タングから近い位置でスライダを支持するので、タングの撓み変形が少ない。このため、硬い編糸を用いた編成や目の詰まった編成などで、編成動作を安定に行える。
【図面の簡単な説明】
【図１】実施例の複合針での針部材の要部側面図
【図２】図１の針本体の平面図
【図３】変形例の複合針での針部材の要部側面図
【図４】実施例の複合針でのスライダの平面図
【図５】図４のスライダの側面図
【図６】図５の要部拡大側面図
【図７】変形例の複合針での、針部材の第２フォーク及び第３フォークと、スライダの第２フォーク当接面及び第３フォーク当接面とを拡大して示す側面図
【図８】変形例の複合針で、針部材を前進させた際の姿を示す側面図
【図９】変形例の複合針で、針部材のフックをスライダのタングで閉じた際の姿を示す側面図
【図１０】変形例の複合針で、図９の状態からスライダをさらに前進させた姿を示す側面図
【図１１】図９での複合針の状態を拡大して示す図
【符号の説明】
２，３針部材
４，５本体部
６延長部
７ニードルジャック
８フック
１０分岐部
１２第１フォーク
１３ガイド部
１４第２フォーク
１６第３フォーク
１５，１７ガイド面
１８，１９テーパー部
２０チーク
２１窪み部
２２膨出面
２３ニードルバット
２４嵌合凹部
２５嵌合凸部
３０スライダ
３２タング
３３スリット
３４ノーズ
３６貫通スリット部
３７貫通スリット
３８，４０中実部
３９第１フォーク当接カム面
４１スカート部
４２スライダバット
４４第２フォーク当接面
４６第３フォーク当接面
４５，４７テーパー部
４８，５０境界線
５２凹部
５３支持部
６０帯金
６２ステッチループ[0001]
[Field of the Invention]
The present invention relates to a compound needle used in a knitting machine such as a flat knitting machine, and more particularly to a slider guide for a needle member.
[0002]
[Prior art]
[Patent Document 1] JP 2002-294541 A [Patent Document 2] JP 2001-032154 [Patent Document 3] JP 62-206069 A
Patent documents 1 to 3 describe a compound needle. Patent Document 1 discloses that a fork that branches off from a longitudinal intermediate portion of the needle member and extends toward the hook side at the tip of the needle member is provided to guide the slider between the lower surface of the fork and the upper surface of the needle member. A slider bat is provided at the rear part of the slider, and a pair of support parts at the lower end of the slider rear end is provided, and the needle member is sandwiched between these support parts. These support portions are considered to be protrusions provided on the slider.
Patent Document 2 discloses a similar type of compound needle, but instead of providing a fork on the needle member to sandwich the slider, the upper surface of the slider is supported by a needle bed band.
In Patent Document 3, a fork is provided on each of a needle member and a slider, and these forks are engaged with each other to position the slider.
[0004]
As in Patent Document 1, when the tongue at the tip of the slider supports the stitch loop, a force for flipping up the rear end of the slider is applied. On the other hand, the rear end of the slider is prevented from rising by the pair of support portions. The inventor here is that it is difficult to sufficiently support the force to lift the rear part of the slider with the pair of support parts provided at the lower part of the rear end of the slider, shortening the life of the compound needle, and the slider bat I found it difficult to accurately regulate the height of the.
[0005]
[Problems of the Invention]
An object of the present invention is to prevent the bat provided at the rear portion of the slider from rising.
A secondary problem of the present invention is to increase the strength of the needle member and facilitate the processing of the needle member.
Another object of the present invention is to facilitate the advancement and retraction of the slider with respect to the second fork and the third fork.
A further object of the present invention is to increase the rigidity to a force that attempts to deflect the tongue of the slider.
[0006]
[Structure of the invention]
The present invention includes a needle member having a hook at the tip, and a slider that slides across the needle member and has a tongue at the tip, and the needle member and the slider are independently movable, and the stitches In a compound needle capable of forming and transferring stitches,
In the needle member,
A first fork protruding toward the hook side from a branching portion that branches upward from a substantially middle portion of the region straddling the slider, and the front half of the slider is sandwiched between the first fork and the needle member; In addition, the slider is guided by the lower surface of the first fork, and the vertical movement of the first half of the slider is restricted.
A second fork protruding from the branching portion to the rear upper portion of the needle member toward the butt side of the slider is provided, and the slider is guided by the lower surface of the second fork at a position where the slider has advanced with respect to the needle member,
A third fork is provided that branches from the back to the front of the slider butt of the needle member and faces the second fork, and the slider is retracted from the lower surface of the third fork at a position where the slider is retracted from the needle member. Guide and
The second fork and the third fork regulate the vertical movement of the rear half of the slider,
The slider is
The latter half is equipped with the slider bat,
Provided with a slit penetrating up and down in front of the bat of the slider, the branch portion of the needle member penetrates the slit,
The first half of the slider is positioned in front of the through slit, and a first fork contact cam surface guided by the lower surface of the first fork is provided on the upper surface of the first half of the slider;
A second fork contact surface guided by the lower surface of the second fork is provided on the upper surface of the rear half of the slider in front of the butt of the slider;
A third fork contact surface guided by the lower surface of the third fork is provided on the upper surface of the rear end of the slider behind the bat of the slider.
[0007]
In this specification, the front and rear are the longitudinal direction of the compound needle, the hook and tongue side being front, and the slider bat and third fork side being rear. The upper and lower sides are determined based on the state where the compound needle is set on the needle bed, the slider is on the needle member and straddles the needle member, the first fork and the second fork are on the slider, and the slider is the needle member. And put between. The left and right and side directions are perpendicular to the longitudinal direction and the vertical direction, and are used to indicate, for example, the thin plates of the left and right sliders of the through slit and the left and right thin plates of the skirt.
[0008]
Preferably, the rear half of the slider is formed to have substantially the same thickness from the third fork contact surface to the second fork contact surface.
Preferably, the slider is divided into two left and right sides in a lateral direction from the lower side of the second fork contact surface to the through slit, and the upper and lower surfaces of the slider are cut at the through slit to cut the through slit. Is forming.
[0009]
Preferably, at the rear end portion of the second fork, an oblique taper portion facing from the rear upper side to the front lower side is provided, and
The front end of the third fork is provided with an inclined tapered portion facing from the front upper side to the rear lower side,
An oblique taper portion is provided at the front end of the second fork contact surface from the rear upper side to the front lower side,
An oblique tapered portion is provided at the rear end of the third fork contact surface from the front upper side to the rear lower side.
[0010]
Preferably, a bulging portion in which the upper surface of the needle member bulges upward is formed behind the hook of the needle member,
The first half of the slider is formed with a solid upper part and a lower part with a skirt divided into two sheets.
When the tongue closes the hook, the hook-side portion of the bulging portion supports a support portion provided at the bottom of the solid portion on the skirt portion.
[0011]
Particularly preferably, the first half of the slider has a concave portion in which the bottom of the solid portion is recessed upward around the support portion, and from the front upper side to the rear lower side at the hook side tip of the solid portion. The recess is provided behind the boundary line.
[0012]
[Operation and effect of the invention]
The effect of this invention is demonstrated. When the needle member advances from the slider and the hook advances, a force that pushes the front half of the slider downward from the lower surface of the first fork acts, and along with this, a force that pushes the slider bat behind the slider acts upward. . At this time, the third fork supports the third fork contact surface provided on the upper surface of the rear end of the slider, thereby preventing the slider bat from rising. Further, when the hook is retracted and the tongue at the tip of the slider is closed, the slider bat is subjected to a force that springs upward due to the force from the stitch loop on the hook. This force is supported by the contact of the second fork contact surface of the slider with the second fork of the needle member, and can prevent the slider bat from jumping up. For these reasons, the slider bat can be prevented from being lifted inadvertently, so that the height of the slider bat can be accurately regulated and the operation of the slider is simplified. The height of the slider bat is regulated by the second fork and the third fork, and the second fork contact surface and the third fork contact surface, and these members can be formed firmly, so that they are highly reliable and complex. Increased needle durability.
[0013]
If the latter half of the slider is formed with substantially the same thickness from the third fork contact surface to the second fork contact surface, the strength of this portion increases and the durability of the slider increases.
[0014]
The slider is divided into two left and right sides in the lateral direction from the lower side of the second fork contact surface of the slider to the through slit, and the upper and lower surfaces of the slider are cut at the through slit. If it does in this way, a slider can be simply constituted by cutting. Further, when the slider is divided into two left and right below the second fork contact surface, the boundary between the solid portion near the slider bat and the left and right two portions near the through slit extends over a long range. It is possible to prevent the stress from being concentrated on this boundary and being damaged.
[0015]
When a taper portion is provided at the rear end portion of the second fork or the front end portion of the second fork contact surface so as to be inclined obliquely from the rear upper direction to the front lower direction, the second fork contact surface is placed below the second fork. Can guide smoothly. Similarly, if a tapered portion is provided at the front end portion of the third fork or the rear end portion of the third fork abutting surface so as to be inclined obliquely from the front direction to the rear lower side, the third fork abutting surface can be made smoother. Can be guided on the underside of the fork.
[0016]
At the position where the tongue holds the stitch loop and the hook is closed, the tongue is subjected to a force to bend laterally from the stitch loop. On the other hand, preferably, the bottom portion of the solid portion on the skirt portion is supported by the upper surface of the needle member at the hook side portion of the bulging portion on the upper surface of the needle member. The position where the upper surface of the needle member supports the bottom of the solid portion is called a support portion. Then, since the distance between the tongue and the support portion is short, the rigidity of the tongue can be increased and bending deformation can be prevented. For this reason, knitting of a knitted fabric using hard knitting yarn or a knitted fabric with clogged eyes becomes easy.
[0017]
Consider a boundary line from the front upper side to the rear lower side on the hook side of the solid part of the first half of the slider. This boundary line is a boundary line between the tongue or skirt portion and the solid portion which are separated into two sheets. Then, behind this boundary line, a concave portion is provided on the bottom of the solid portion so as to serve as a support portion. And when the tongue closes the hook, when the portion of the bulging portion near the hook comes into contact with the concave portion as the support portion and supports the bottom portion of the solid portion of the slider, the concave portion is provided at a position relatively close to the tongue. And the rigidity of the tongue can be increased.
[0018]
【Example】
1 to 11 show an embodiment and its modifications. 1 and 2 show a first example of a needle member. The needle member 2 is composed of a main body portion 4 and an extension portion 6, a hook 8 is provided at the tip thereof, a branch portion 10 is provided near the center of the main body portion 4, and the branch portion 10 branches upward from the main body portion 4. ing. A first fork 12 is provided on the front side of the branching portion 10, and a guide portion 13 for guiding the upper surface of the slider is provided on the lower surface thereof. The second fork 14 branches from the branching portion 10 to the rear side, and a guide surface 15 is provided on the lower surface thereof. The needle member 2 is bent upward from the vicinity of the rear end of the main body 4, and the third fork 16 protrudes to the front side. The lower surface of the third fork 16 is a guide surface 17. A taper portion 18 is provided at the rear end of the second fork 14 from obliquely upward to obliquely forward and downward, and a taper portion 19 is provided at the tip of the third fork 16 from obliquely upward to obliquely rearward and downward. is there.
[0019]
In this specification, the front and rear are defined along the longitudinal direction of the needle member 2 and the slider 30, and the hook 8 is the front side, and the side where the third fork 16 is located is the rear side. The needle member 2 is housed in a needle bed (not shown) and slides back and forth, with the lower side of FIGS. 1, 3 and 5 being the lower side and the upper side of these figures being the upper side. The side surface of the needle member 2 means two side surfaces along the longitudinal direction of FIG. In the case of the slider 30, the two upper and lower side surfaces in FIG. 4 are the left and right side surfaces.
[0020]
A portion of the needle member 2 that is slightly rearward of the hook 8 and whose height increases toward the upper side is a cheek 20. The cheek 20 is provided with a depression 21 and its upper part (the upper surface of the needle member) is bulged upward to form a bulging surface 22 that is convex upward. When the hook 8 is closed by the tongue 32 of the slider 30, the portion near the hook 8 in the bulging surface 22 supports the bottom of the solid portion 38 of the slider. As shown in FIG. 2, the recess 21 is provided by performing recess processing on the needle member 2 at the portion of the cheek 20. The recess 21 is rectangular, for example, with the hook 8 side in the front, and from the rear lower side to the front. It is inclined upward. When the hook 8 is fully opened (FIG. 8), the tongues 32 and 32 are submerged in the left and right recesses 21 and 21 of the needle member 2 so that the tongues 32 and 32 do not protrude from the side surface of the needle member 2. To. Reference numeral 23 schematically shows a needle bat for moving the needle member 2 back and forth.
[0021]
The needle member 2 shown in FIGS. 1 and 2 has a considerable length, is difficult to process, and takes time and effort to fit the slider 30 together. The needle member 3 in FIG. 3 has a main body 5 and a needle jack 7 separated from each other. The fitting recess 24 is provided in the main body 5, and the fitting protrusion 25 is provided in the needle jack 7. And the main body 5 and the needle jack 7 are integrated. A fitting convex portion may be provided on the main body portion 5 side, and a fitting concave portion may be provided on the needle jack 7 side. In the case of the needle member 3 of FIG. 3, since the third fork 16 is provided on the needle jack 7 side, the slider 30 can be easily detached and manufactured.
[0022]
The difference between the needle member 2 and the needle member 3 is whether the needle member 2 is divided into the main body portion and the needle jack, or these are integrated. In other respects, the needle members 2 and 3 are the same, and the description regarding the needle member 2 also applies to the needle member 3, and the description regarding the needle member 3 also applies to the needle member 2. Moreover, in an Example, the member using the same code | symbol represents the same thing.
[0023]
4 and 5 show the slider 30. A pair of left and right tongues 32, 32 are provided at the tip of the slider 30, and a slit 33 is provided between them. The tongues 32 and 32 are provided with a gap left and right with the slit 33 as a center, and are bent so as to abut on each other at the tip, and a tongue or hook of another slider is inserted into the slit 33. Can do. There is a nose 34 raised upward on the rear side of the tongue 32 so that the stitch loop held by the tongue 32 does not move behind the nose 34. A through slit portion 36 is provided at the center of the slider 30, and the slider 30 is divided into two on the left and right sides at this portion, and a through slit 37 is provided therebetween. The reason why the through slit portion 36 swells to the left and right is to prevent friction of the slider 30 with the wall surface of the needle groove on the needle bed to prevent the slider 30 from moving away. A front solid part 38 and a rear solid part 40 are provided before and after the through slit 36 part, and the slider 30 is solid in these parts, and the solid part 38 and the solid part 40 are respectively The wall thickness is constant.
[0024]
A first fork abutting cam surface 39 is provided on the upper surface of the solid portion 38 and abuts against the guide portion 13 on the lower surface of the first fork 12 to restrict the vertical movement of the solid portion 38. Further, on the front side and the lower side of the solid portion 38, the slider 30 is divided into two pieces on the left and right sides to form a tongue 32, a nose 34, and a skirt portion 41. The skirt portion 41 slides across the main body portions 4 and 5 from the portion facing the lower side of the first fork 12 to the portion of the cheek 20. The bulging surface 22 supports the bottom surface of the solid portion 38 to prevent the front half of the slider from sinking.
[0025]
In the center of the rear solid part 40, there is a slider butt 42 protruding upward, and there is a second fork contact surface 44 on the front side. The front end of the second fork contact surface 44 extends from the rear upper side to the front lower side. A tapered portion 45 that is inclined to the heel is formed. A third fork contact surface 46 is provided behind the slider butt 42, and a rear end thereof forms an inclined tapered portion 47 from the front upper side to the rear lower side. Since the boundary line 48 between the solid portion 40 and the through slit portion 36 is substantially parallel to the second fork contact surface 44 and the length of the boundary surface 48 is large, the stress applied to the boundary surface 48 can be dispersed. .
[0026]
FIG. 6 is an enlarged view of the periphery of the solid portion 38 of the first half of the slider 30. The boundary line 50 is an oblique boundary line in front of the solid portion 38, and has a tongue 32 and a nose 34 in the front. There is a concave recess 52 on the rear side of the boundary line 50 and a support 53 in the first half of the recess 52. When the tongue 32 holds the stitch loop and closes the hook 8, it contacts the bulging surface 22. Thus, the bending deformation of the tongue 32 is prevented. In this way, the bulging surface 22 is located in the upper part of the first half of the hollow portion 21 and the distance between the support portion 53 and the tongue 32 is short, so that the rigidity of the tongue 32 can be increased.
[0027]
FIG. 7 shows the relationship between the second fork 14 and the third fork 16 and the second fork contact surface 44 and the third fork contact surface 46. The second fork contact surface 44 is supported by the second fork 14 at the position where the slider 30 has advanced, and the third fork contact surface 46 is supported by the third fork 16 at the position where the slider 30 has retracted. When the second fork contact surface 44 contacts the second fork 14 or when the third fork contact surface 46 contacts the third fork 16, the taper portions 18, 45, taper portions 19, 47, etc. The real part 40 is guided. Further, since the solid portion 40 is solid with the same plate thickness in a wide range from the third fork contact surface 46 to the second fork contact surface 44, the strength is high. The stress at the boundary between the solid portion 40 and the through slit portion 36 is dispersed by taking the boundary line 48 longer.
[0028]
8 to 10 show three states of the compound needle. Reference numeral 60 denotes a band on the needle bed side, which is in contact with the upper surfaces of the first fork 12 and the second fork 14 to prevent the composite needle from floating from the needle groove of the needle bed.
[0029]
As shown in FIG. 8, the hook 8 is moved forward most and the slider 30 is finally retracted with respect to the needle member. At this time, a force for pushing the first fork contact cam surface 39 downward is applied from the guide portion 13 on the lower surface of the first fork 12, and this force acts to raise the slider butt 42. On the other hand, when the third fork contact surface 46 contacts the third fork 16, the slider butt 42 is prevented from rising. At this time, the tongue 32 sinks into the left and right recesses 21 of the needle body 2 so as not to protrude from the side surface of the needle body 2. This makes it easy to transfer the stitch on the hook 8 to the tongue 32.
[0030]
As shown in FIG. 9, when the tongue 32 closes the hook 8, a force to lift the slider bat 42 upwards acts by a force from a stitch loop or the like held by the tongue 32. This force is supported by the second fork contact surface 44 and the second fork 14 and prevents the slider butt 42 from being inadvertently raised. This is the same when the tongue 32 is further advanced as shown in FIG. 10, and FIG. 10 shows a state where the slider 30 is most advanced with respect to the needle member 3.
[0031]
The state of FIG. 9 is enlarged and shown in FIG. A stitch loop 62 is held on the tongue 32, and tension is applied to the knitted fabric by a racking operation of the needle bed or lowering of the knitted fabric, so that a lateral force is applied to the tongue 32. In addition, a downward force is applied to the tongue 32 from the stitch loop 62. In the tongue 32, since the slider 30 is divided into two pieces on the left and right, the rigidity thereof is low. This is necessary for inserting a tongue or hook of another compound needle into the gap between the tongues 32 and 32 and moving the stitch loop. The support portion 53 is slightly behind the oblique front boundary line 50 of the solid portion 38, and contacts the bulging surface 22 on the needle member 3 side to support the bottom surface of the solid portion 38. In this way, the distance from the support portion 53 to the tongue 32 is shortened, so that bending deformation of the tongue 32 can be prevented.
[0032]
In the embodiment, the following effects can be obtained.
(1) The vertical movement of the slider can be regulated by the first to third forks, the first fork contact cam surface, and the second and third fork contact surfaces. In particular, the force for raising the slider bat can be regulated by the second fork, the third fork, etc., and the height of the slider bat can be regulated accurately.
(2) Since the portion from the third fork to the slider bat and the second fork is formed with the same thickness, the strength of this portion is high.
(3) Since the slider is supported at a position close to the tongue against the force applied to the tongue from the stitch loop, the bending deformation of the tongue is small. For this reason, the knitting operation can be stably performed by knitting using hard knitting yarn or knitting with closed eyes.
[Brief description of the drawings]
FIG. 1 is a side view of a main part of a needle member in a compound needle of an embodiment. FIG. 2 is a plan view of a needle body in FIG. FIG. 5 is a side view of the slider of FIG. 4. FIG. 6 is an enlarged side view of the main part of FIG. 5. FIG. FIG. 8 is an enlarged side view showing the second fork and third fork of the slider and the second fork contact surface and the third fork contact surface of the slider. FIG. FIG. 9 is a side view showing the state when the hook of the needle member is closed with the tongue of the slider. FIG. 10 is a side view showing the shape of the modified needle shown in FIG. FIG. 11 is a side view showing the state in which the slider is further advanced from the state. FIG. 11 is an enlarged view showing the state of the compound needle in FIG.
2, 3 Needle members 4, 5 Body portion 6 Extension portion 7 Needle jack 8 Hook 10 Branch portion 12 First fork 13 Guide portion 14 Second fork 16 Third forks 15, 17 Guide surfaces 18, 19 Tapered portion 20 Teak 21 Recess Portion 22 bulging surface 23 needle butt 24 fitting recess 25 fitting projection 30 slider 32 tongue 33 slit 34 nose 36 through slit portion 37 through slit 38, 40 solid portion 39 first fork contact cam surface 41 skirt portion 42 slider Butt 44 Second fork contact surface 46 Third fork contact surface 45, 47 Taper portion 48, 50 Boundary line 52 Recess 53 Support portion 60 Band 62 Stitch loop

Claims

A needle member having a hook at the tip, and a slider that slides across the needle member and has a tongue at the tip, and the needle member and the slider are independently movable to form a stitch and stitch In a compound needle that can be transferred,
In the needle member,
A first fork protruding toward the hook side from a branching portion that branches upward from a substantially middle portion of the region straddling the slider, and the front half of the slider is sandwiched between the first fork and the needle member; In addition, the slider is guided by the lower surface of the first fork, and the vertical movement of the first half of the slider is restricted.
A second fork protruding from the branching portion to the rear upper portion of the needle member toward the butt side of the slider is provided, and the slider is guided by the lower surface of the second fork at a position where the slider has advanced with respect to the needle member,
A third fork is provided that branches from the back to the front of the slider butt of the needle member and faces the second fork, and the slider is retracted from the lower surface of the third fork at a position where the slider is retracted from the needle member. Guide and
The second fork and the third fork regulate the vertical movement of the rear half of the slider,
The slider is
The latter half is equipped with the slider bat,
Provided with a slit penetrating up and down in front of the bat of the slider, the branch portion of the needle member penetrates the slit,
The first half of the slider is positioned in front of the through slit, and a first fork contact cam surface guided by the lower surface of the first fork is provided on the upper surface of the first half of the slider;
A second fork contact surface guided by the lower surface of the second fork is provided on the upper surface of the rear half of the slider in front of the butt of the slider;
A third fork contact surface guided by the lower surface of the third fork is provided on the upper surface of the rear end of the slider behind the bat of the slider.
A compound needle characterized by that.

2. The compound needle according to claim 1, wherein the rear half of the slider is formed with substantially the same thickness from the third fork contact surface to the second fork contact surface.

The slider is divided into two laterally from the lower side of the second fork contact surface to the through slit, and the upper and lower surfaces of the slider are cut at the through slit to form the through slit. The compound needle according to claim 1, wherein:

In the rear end portion of the second fork, an oblique taper portion facing from the rear upper side to the front lower side is provided,
The front end of the third fork is provided with an inclined tapered portion facing from the front upper side to the rear lower side,
An oblique taper portion is provided at the front end of the second fork contact surface from the rear upper side to the front lower side,
2. The compound needle according to claim 1, wherein an oblique tapered portion is provided at the rear end of the third fork contact surface from the front upper side to the rear lower side.

Forming a bulging portion in which the upper surface of the needle member bulges upwardly behind the hook of the needle member,
The first half of the slider is formed with a solid upper part and a lower part with a skirt divided into two sheets.
When the tongue closes the hook, a portion of the bulging portion on the hook side supports a support portion provided at the bottom of a solid portion on the skirt portion, The compound needle according to claim 1.

The front half of the slider has a concave portion in which the bottom of the solid portion is recessed upward around the support portion, and a boundary line from the front upper side to the rear lower side at the hook side tip of the solid portion. The composite needle according to claim 5, wherein the concave portion is provided on the rear side.