JPWO2008018185A1 - Movable sinker and flat knitting machine - Google Patents

Movable sinker and flat knitting machine Download PDF

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JPWO2008018185A1
JPWO2008018185A1 JP2008528724A JP2008528724A JPWO2008018185A1 JP WO2008018185 A1 JPWO2008018185 A1 JP WO2008018185A1 JP 2008528724 A JP2008528724 A JP 2008528724A JP 2008528724 A JP2008528724 A JP 2008528724A JP WO2008018185 A1 JPWO2008018185 A1 JP WO2008018185A1
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sinker
torque spring
support
movable
movable sinker
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JP5161089B2 (en
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森田 敏明
敏明 森田
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Shima Seiki Manufacturing Ltd
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/06Sinkers
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/10Needle beds
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
    • D04B15/70Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used in flat-bed knitting machines
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/88Take-up or draw-off devices for knitting products
    • D04B15/90Take-up or draw-off devices for knitting products for flat-bed knitting machines

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

シンカ部にトルクばね部を一体化しても低コストで製造することができ、個々のばらつきをなくし、製造作業時間の短縮を図ることができる可動シンカおよび横編機を提供する。可動シンカ11のシンカ部12の支持部12aと腕部12bとの中間部分からは、トルクばね部13が腕部12bの逆方向に延出される。延出部13aに続いて、支持部12aの内周側で、仮想的な円心4cを迂回する迂回部13bが形成される。迂回部13bに続いて、延出部13aに並行する遊端部13cが形成される。迂回部13bと遊端部13cとの間に、径方向の外方に突出する突出部13dを設けて、線長を付加させる。線長の付加によって、プレスの打抜き加工でも充分な変位量と荷重との関係が得られる。Provided are a movable sinker and a flat knitting machine that can be manufactured at a low cost even if a torque spring portion is integrated with the sinker portion, eliminate individual variations, and shorten the manufacturing work time. From an intermediate portion between the support portion 12a and the arm portion 12b of the sinker portion 12 of the movable sinker 11, the torque spring portion 13 extends in the opposite direction of the arm portion 12b. Subsequent to the extending portion 13a, a bypass portion 13b that bypasses the virtual circle center 4c is formed on the inner peripheral side of the support portion 12a. Following the detour portion 13b, a free end portion 13c parallel to the extending portion 13a is formed. A protruding portion 13d protruding outward in the radial direction is provided between the detour portion 13b and the free end portion 13c to add a line length. By adding the wire length, a sufficient relationship between the amount of displacement and the load can be obtained even in stamping of the press.

Description

本発明は、ばね付勢で編地を押える可動シンカおよび横編機に関する。   The present invention relates to a movable sinker and a flat knitting machine that press a knitted fabric with a spring bias.

従来から、横編機の針床の先端の歯口には、天竺編成でのシンカループの形成や、ニードルループのクリアやノックオーバを助ける機能を有するシンカが設けられている。シンカを可動にすることによって、固定したシンカでは編成が困難である多重タック、ピンタック、引返し編みなどの編成が容易になる。可動シンカをばね付勢することによって、編目ループに常時適正な張力を作用させ、高品質で風合いの良い編地の編成が可能になる。   2. Description of the Related Art Conventionally, a sinker having a function of assisting formation of a sinker loop in tentacle knitting, clearing of a needle loop, and knockover is provided at a tip of a needle bed of a flat knitting machine. By making the sinker movable, knitting such as multi-tuck, pin tack, turnback knitting and the like, which is difficult to knitting with a fixed sinker, becomes easy. By spring-biasing the movable sinker, an appropriate tension is always applied to the stitch loop, and a knitted fabric with high quality and good texture can be knitted.

図5は、(a)で、ばね付勢される可動シンカで編地を押える可動シンカ装置1の構成を示す(たとえば、特許文献1参照。)。可動シンカ装置1は、シンカ部材2と線ばね3とが組合わされ、ニードルプレート4の歯口5側先端付近に配置される。ニードルプレート4は、図の紙面に垂直な方向に一定の間隔で配設される。ニードルプレート4間には、編針を収容する針溝が形成される。シンカ部材2は、板状であり、図示の形状となるように成型される。ニードルプレート4は、先端寄りに上部の一側面の肉厚を減少させた切欠部4aを有する。切欠部4aに、シンカ部材2は、支持部2aを含む大略的に逆Ω字形状の部分が収納される。ニードルプレート4には、切欠部4a底部にシンカ支承用凹部4bが形成される。シンカ支承用凹部4bは、円弧状の表面でシンカ部材2の支持部2aを支承する。支持部2aの外周は、シンカ支承用凹部4bに嵌合する。シンカ部材2は、支承用凹部4bの内周側の円弧の仮想的な円心4cを中心として揺動変位が可能であり、揺動変位に応じて、支持部2aから延びる腕部2bが歯口5に進退する。腕部2bの先端付近には、編針から歯口5に垂下する編地の編糸を押える編糸受け部2cが形成される。腕部2bの途中で、円心4cからの径が最大となる部分には、天竺編みで編針に編糸が引込まれる際に編糸が掛ってシンカループを形成する前縁部2dが設けられる。前縁部2dが隣接する編針間の中央となるように、腕部2bは、ニードルプレート4の切欠部4aに接していない側の厚みが減少させられている。   FIG. 5A shows a configuration of the movable sinker device 1 that presses the knitted fabric with a spring-biased movable sinker (see, for example, Patent Document 1). The movable sinker device 1 is a combination of a sinker member 2 and a wire spring 3 and is arranged near the tip of the needle plate 4 on the side of the tooth opening 5. The needle plates 4 are arranged at regular intervals in a direction perpendicular to the drawing sheet. A needle groove for accommodating the knitting needle is formed between the needle plates 4. The sinker member 2 has a plate shape and is molded so as to have the shape shown in the drawing. The needle plate 4 has a notch 4a in which the thickness of one side surface of the upper portion is reduced near the tip. In the cutout portion 4a, the sinker member 2 is accommodated with a substantially inverted Ω-shaped portion including the support portion 2a. The needle plate 4 is formed with a sinker support recess 4b at the bottom of the notch 4a. The sinker support recess 4b supports the support portion 2a of the sinker member 2 with an arcuate surface. The outer periphery of the support portion 2a is fitted into the sinker support recess 4b. The sinker member 2 is capable of oscillating displacement about the virtual circular center 4c of the arc on the inner peripheral side of the supporting recess 4b, and the arm portion 2b extending from the support portion 2a is toothed in accordance with the oscillating displacement. Move forward and backward to mouth 5. A knitting yarn receiving portion 2c that presses the knitting yarn of the knitted fabric that hangs down from the knitting needle to the mouth 5 is formed near the tip of the arm portion 2b. In the middle of the arm portion 2b, a front edge portion 2d that forms a sinker loop when the knitting yarn is drawn into the knitting needle by means of the tentacle knitting is provided at a portion where the diameter from the circle center 4c is maximum. . The arm 2b has a reduced thickness on the side not contacting the notch 4a of the needle plate 4 so that the front edge 2d is at the center between adjacent knitting needles.

線ばね3は、シンカ部材2の逆Ω字形状の部分から腕部2bが延出される部分に設けられるばね係止部2eに、基端部3aが弾発的に係止される。線ばね3は、基端部3aを除いて概略的にU字形状である。U字形状の部分は、シンカ部材2の支持部2aの内周に沿って曲り、円心4cを迂回する迂回部3bと、迂回部3bから基端部3aと並行して延びる遊端部3cとを有する。遊端部3cの先端付近は、ニードルプレート4の切欠部4aの上側の押圧部4dに当接する。図に示す状態で、線ばね3は、自由状態よりも遊端部3cが基端部3a側に接近するように押圧されており、シンカ部材2には、円心4cを中心として、時計回り方向のトルクが印加されている。編目受け部2cに掛る編糸の張力に基づく逆方向のトルクが大きくなると、シンカ部材2は反時計回り方向に揺動変位し、編糸の張力は緩和される。   In the wire spring 3, the base end portion 3 a is elastically locked to a spring locking portion 2 e provided at a portion where the arm portion 2 b extends from the inverted Ω-shaped portion of the sinker member 2. The wire spring 3 is generally U-shaped except for the base end portion 3a. The U-shaped portion bends along the inner periphery of the support portion 2a of the sinker member 2 and bypasses the detour portion 3b that bypasses the circular center 4c, and the free end portion 3c that extends in parallel with the base end portion 3a from the detour portion 3b. And have. The vicinity of the tip of the free end portion 3 c comes into contact with the pressing portion 4 d on the upper side of the notch portion 4 a of the needle plate 4. In the state shown in the figure, the wire spring 3 is pressed so that the free end portion 3c is closer to the base end portion 3a side than in the free state, and the sinker member 2 is rotated clockwise around the center 4c. Directional torque is applied. When the reverse torque based on the tension of the knitting yarn applied to the stitch receiving portion 2c increases, the sinker member 2 swings and displaces counterclockwise, and the tension of the knitting yarn is relaxed.

図5(a)に示す可動シンカ装置1では、シンカ部材2と線ばね3とが別体である。シンカ部材2は、金属板をプレスで打抜いて製造される。線ばね3は、角形断面の金属線材を曲げ成形して製造される。これに対して、ばねと一体化されたシンカも提案されている(たとえば、特許文献2参照。)。特許文献2の図4などに開示されているシンカは、丸編機に用いられ、大略的に直線状であり、編成作用を行うヘッドの反対側などにスプリング要素が形成されている。特許文献1にも、実施例の欄の最後付近には、「シンカープレートをバネ綱で形成し、その弾力で付勢手段を成形するようにしても良いことは言うまでもない」と記載されている。   In the movable sinker device 1 shown in FIG. 5A, the sinker member 2 and the wire spring 3 are separate bodies. The sinker member 2 is manufactured by punching a metal plate with a press. The wire spring 3 is manufactured by bending a metal wire having a square cross section. On the other hand, a sinker integrated with a spring has also been proposed (see, for example, Patent Document 2). The sinker disclosed in FIG. 4 of Patent Document 2 is used in a circular knitting machine, is generally linear, and a spring element is formed on the opposite side of the head that performs the knitting action. Also in Patent Document 1, it is described in the vicinity of the end of the column of “Example” that “the sinker plate may be formed of a spring rope and the urging means may be formed by its elasticity”. .

図5(b)は、(a)に示す可動シンカ装置1でシンカ部材2と線ばね3とを一体化させる場合に想定される構成を示す。シンカ部材2は、プレスで打抜いて製造されているので、トルクばね部6を一体化させる場合は、同時に打抜いて製造することが考えられる。すなわち、トルクばね部6は、(a)でばね係止部2eが設けられている部分から延出部6aとして支持部2a側に延出され、迂回部6bと遊端部6cとで、大略的にU字形状となると予想される。ただし、プレス打抜きでの量産を可能にするためには、トルクばね部6の外周とシンカ部材2の逆Ω字形状部分の内周との間に隙間sが一定の基準以上必要となり、トルクばね部6の幅wも一定の基準以上必要となる。   FIG.5 (b) shows the structure assumed when the sinker member 2 and the wire spring 3 are integrated in the movable sinker apparatus 1 shown to (a). Since the sinker member 2 is manufactured by punching with a press, when the torque spring portion 6 is integrated, it can be considered that the sinker member 2 is manufactured by punching at the same time. That is, the torque spring portion 6 is extended to the support portion 2a side as the extension portion 6a from the portion where the spring locking portion 2e is provided in (a), and is roughly composed of the detour portion 6b and the free end portion 6c. It is expected to be U-shaped. However, in order to enable mass production by press punching, a gap s between the outer periphery of the torque spring portion 6 and the inner periphery of the inverted Ω-shaped portion of the sinker member 2 is required to exceed a certain reference, and the torque spring The width w of the part 6 is also required to exceed a certain standard.

図6は、図5に示す可動シンカ装置1での変位量と荷重との関係の大略的な傾向を示す。図5(a)に示すシンカ部材2と線ばね3とが別体となる構成では、実線で示すように、変位量と荷重との関係は、編糸を適正に押下げる使用荷重範囲内に収っている。図5(b)に示すように、トルクばね部6を一体化する場合を想定すると、隙間sと幅wとを、別体の場合よりも大きくしなければならなくなる。隙間sが大きくなると、線ばね3に比較してトルクばね部6の線長が短くなる。トルクばね部6が線長の全体で曲げ変形を分担する際に、線長が短くなると、各部で分担する曲げ荷重が大きくなる。幅wが大きくなると、トルクばね部6の断面二次モーメントが線ばね3の断面二次モーメントよりも大きくなり、同一の曲げ変形に大きな曲げ力を要するようになる。この結果、二点鎖線で示すように、変位量に対する荷重は大きい側に移行し、使用荷重範囲から外れるおそれがある。また、ばね素材強度限界を超えて、トルクばね部6が破損するおそれもある。
特公平5−83657号公報 特開2001−303407号公報
FIG. 6 shows a general tendency of the relationship between the displacement and the load in the movable sinker device 1 shown in FIG. In the configuration in which the sinker member 2 and the wire spring 3 shown in FIG. 5 (a) are separated, the relationship between the displacement and the load is within the working load range for properly pushing down the knitting yarn, as shown by the solid line. I have it. As shown in FIG. 5B, assuming that the torque spring portion 6 is integrated, the gap s and the width w must be made larger than in the case of separate bodies. When the gap s increases, the wire length of the torque spring portion 6 becomes shorter than that of the wire spring 3. When the torque spring portion 6 shares the bending deformation with the entire wire length, if the wire length becomes short, the bending load shared by each portion increases. When the width w increases, the cross-sectional secondary moment of the torque spring portion 6 becomes larger than the cross-sectional secondary moment of the wire spring 3, and a large bending force is required for the same bending deformation. As a result, as indicated by a two-dot chain line, the load with respect to the displacement amount shifts to the larger side and may be out of the use load range. Further, the torque spring portion 6 may be damaged beyond the spring material strength limit.
Japanese Patent Publication No. 5-83657 JP 2001-303407 A

図5(a)に示すように、シンカ部材2と線ばね3とが別体であると、加工と組立てとの工程が多くなり、製造作業時間が長くなって製造コストが上昇する。線ばね3は、成形加工が困難で、形状やばね特性のばらつきが大きい。特に基端部3aを弾発力のみでばね係止部2eに係止させることが困難な場合には、ロー付を併用しての固定も行われている。ただし、ロー付の際に線ばね3が倒れたり傾いたりすると、図6に示すよう変位量と荷重との関係のばらつきも大きくなってしまう。ばね係止部2eでの線ばね3の係止が不十分であると、シンカ部材2と線ばね3とが分離しやすくなってしまう。たとえば横編機のメンテナンス時などには、可動シンカ装置1を針床から取外すことがある。取外しの際に、シンカ部材2と線バネ3とが分離してしまうと、再度組立て作業を行う必要がある。   As shown in FIG. 5 (a), if the sinker member 2 and the wire spring 3 are separate bodies, the steps of processing and assembly increase, and the manufacturing operation time becomes long, resulting in an increase in manufacturing cost. The wire spring 3 is difficult to mold and has a large variation in shape and spring characteristics. In particular, when it is difficult to lock the base end portion 3a to the spring locking portion 2e only by a resilient force, fixing using brazing is also performed. However, if the wire spring 3 falls or tilts during brazing, the variation in the relationship between the displacement and the load increases as shown in FIG. If the wire spring 3 is not sufficiently locked by the spring locking portion 2e, the sinker member 2 and the wire spring 3 are easily separated. For example, the movable sinker device 1 may be removed from the needle bed during maintenance of the flat knitting machine. If the sinker member 2 and the wire spring 3 are separated during removal, it is necessary to perform assembly work again.

図5(b)に示すように、シンカ部材2にトルクばね部6を一体的に形成することができれば、別体時の問題は解決すると期待される。しかしながら、トルクばね部6をプレス加工でシンカ部材2と同時に打抜いて製造すると、隙間sの制約からばねとしての線長が短くなり、幅wの制約で曲げの断面としての厚みを減少させることもできない。このため、図6に二点鎖線で示すように、変位量と荷重との関係を適正な使用荷重範囲内に納めることが困難となる。ワイヤカットなど、隙間sや幅wを狭くし得る加工法はあっても、それらの加工法を採用すると、量産性はプレス加工に比較して低くなり、加工コストが上昇してしまう。   As shown in FIG. 5B, if the torque spring portion 6 can be formed integrally with the sinker member 2, it is expected that the problem at the time of separate body will be solved. However, if the torque spring portion 6 is manufactured by stamping at the same time as the sinker member 2, the wire length as a spring is shortened due to the restriction of the gap s, and the thickness as the bending section is reduced due to the restriction of the width w. I can't. For this reason, as shown by a two-dot chain line in FIG. 6, it becomes difficult to keep the relationship between the displacement and the load within an appropriate working load range. Even if there are processing methods that can narrow the gap s and the width w, such as wire cutting, if these processing methods are adopted, mass productivity becomes lower than press processing and processing costs increase.

本発明の目的は、シンカ部にトルクばね部を一体化しても低コストで製造することができ、個々のばらつきをなくし、製造作業時間の短縮を図ることができる可動シンカおよび横編機を提供することである。   An object of the present invention is to provide a movable sinker and a flat knitting machine that can be manufactured at a low cost even if a torque spring portion is integrated with the sinker portion, eliminate individual variations, and shorten the manufacturing work time. It is to be.

本発明は、シンカ部に支持部と腕部とを設けておき、支持部は、針床の歯口近傍に設ける円弧状の案内部によって、該円弧の円心を中心として揺動変位可能に支持し、腕部は、歯口に進出させて、支持部に作用させるトルクばねで、該腕部の先端側で編地を下方に押下げるように付勢する可動シンカであって、
腕部側から分岐して支持部側に延出する延出部と、
延出部に接続され、該円心の周囲を迂回する迂回部と、
迂回部に接続され、径方向の外方に突出する突出部と、
突出部に接続され、延出部に並行する遊端部と
を含むトルクばね部が、シンカ部と一体的に形成されていることを特徴とする可動シンカである。
In the present invention, the sinker portion is provided with a support portion and an arm portion, and the support portion can be oscillated and displaced about the center of the arc by an arc-shaped guide portion provided near the mouth of the needle bed. The arm portion is a movable sinker that is urged to push down the knitted fabric on the tip side of the arm portion with a torque spring that advances to the mouth and acts on the support portion,
An extending part that branches off from the arm part side and extends to the support part side;
A detour part connected to the extension part and detouring around the circle;
A projecting portion connected to the detour portion and projecting radially outward;
The movable sinker is characterized in that a torque spring portion including a free end portion connected to the projecting portion and parallel to the extending portion is formed integrally with the sinker portion.

また本発明で、前記シンカ部は、大略的にΩ字形状を有し、
前記支持部は、該Ω字形状の中間で、円弧状の外周と円弧状の内周との間に予め定める幅を有するように形成され、
前記トルクばね部の迂回部は、該支持部の内側に形成され、
前記突出部は、該支持部の外部に形成さていることを特徴とする。
In the present invention, the sinker portion has a generally Ω-shape,
The support part is formed to have a predetermined width between the arc-shaped outer periphery and the arc-shaped inner periphery in the middle of the Ω-shape,
The bypass portion of the torque spring portion is formed inside the support portion,
The projecting portion is formed outside the support portion.

また本発明で、前記シンカ部の支持部は、針床上に所定間隔毎に配設されるニードルプレートの先端寄りに形成されるシンカ支承用凹部で支持され、
前記トルクばね部の遊端部は、ニードルプレート側に設けられる押圧部に当接する突起を有することを特徴とする。
Further, in the present invention, the support portion of the sinker portion is supported by a sinker support recess formed near the tip of the needle plate disposed at predetermined intervals on the needle bed,
The free end portion of the torque spring portion has a protrusion that abuts against a pressing portion provided on the needle plate side.

また本発明で、前記シンカ部は、前記トルクばね部とシンカ部との間の隙間の最小寸法が板厚の70〜100%に、該トルクばね部の幅の最小寸法が板厚の40〜60%に、それぞれ設定され、ファインブランキングによって作製されることを特徴とする。   In the present invention, the sinker portion has a minimum dimension of a gap between the torque spring portion and the sinker portion of 70 to 100% of the plate thickness, and a minimum width of the torque spring portion of 40 to 100% of the plate thickness. It is set to 60%, respectively, and is produced by fine blanking.

さらに本発明は、前述のいずれか1つに記載の可動シンカを備えることを特徴とする横編機である。   Furthermore, the present invention is a flat knitting machine comprising the movable sinker described in any one of the above.

本発明によれば、シンカ部に一体的に形成されるトルクばね部は、延出部と迂回部と遊端部とで、別体のトルクばねと同等の大略的にU字状の形状を有する。トルクばね部の迂回部と遊端部との間には、径方向の外方に突出する突出部が形成されるので、線ばねとしての線長を余分に付加して延長することができ、可動シンカとして適正なばね付勢を行うことができる。シンカ部にトルクばね部を一体化しても、隙間やトルクばね部の幅を大きくすることができるので、プレスの打抜き加工で低コストで製造することができ、個々のばらつきをなくし、製造作業時間の短縮を図ることができる。   According to the present invention, the torque spring portion formed integrally with the sinker portion has an extension portion, a detour portion, and a free end portion, and has a substantially U-shaped shape equivalent to a separate torque spring. Have. Between the detour part and the free end part of the torque spring part, since a protruding part protruding outward in the radial direction is formed, the wire length as a wire spring can be added and extended, As a movable sinker, an appropriate spring bias can be performed. Even if the torque spring part is integrated with the sinker part, the gap and the width of the torque spring part can be increased, so that it can be manufactured at a low cost by stamping the press, and there is no individual variation, and the manufacturing work time Can be shortened.

また本発明によれば、トルクばね部の線長を余分に付加する突出部をシンカ部の支持部の外部に形成するので、突出部の外周から一定の隙間を空けてシンカ部の内周を形成しても、シンカ部材の支持部の強度を低下させないようにすることができる。   Further, according to the present invention, since the protruding portion that adds an extra line length of the torque spring portion is formed outside the support portion of the sinker portion, the inner periphery of the sinker portion is formed with a certain clearance from the outer periphery of the protruding portion. Even if formed, the strength of the support portion of the sinker member can be prevented from being lowered.

また本発明によれば、ニードルプレートの先端寄りに形成されるシンカ支承用凹部でシンカ部の支持部を支持するので、トルクばね部をシンカ部に一体化しても、トルクばねがシンカ部と別体の場合と同様に使用することができる。トルクばね部の遊端部は、ニードルプレート側に設けられる押下げ部に当接する突起を有するので、遊端部が押圧部に当接する位置を特定させて、動作の安定化を図ることができる。   Further, according to the present invention, the sinker support recess is formed near the tip of the needle plate so that the support portion of the sinker portion is supported. Therefore, even if the torque spring portion is integrated with the sinker portion, the torque spring is separated from the sinker portion. Can be used in the same way as the body. Since the free end portion of the torque spring portion has a protrusion that comes into contact with the push-down portion provided on the needle plate side, the position where the free end portion comes into contact with the press portion can be specified to stabilize the operation. .

また本発明によれば、トルクばね部を一体化したシンカ部を、トルクばね部とシンカ部との間の隙間の最小寸法が板厚の70〜100%に、トルクばね部の幅の最小寸法が板厚の40〜60%に、それぞれ設定してファインブランキングで作製する。高精度の打抜き加工でトルクバネ部としての特性をそろえることが可能となり、総合的な製造コストの低減を図ることができる。   Further, according to the present invention, the sinker portion in which the torque spring portion is integrated, the minimum dimension of the gap between the torque spring portion and the sinker portion is set to 70 to 100% of the plate thickness, and the minimum dimension of the width of the torque spring portion. Are set to 40 to 60% of the plate thickness, and are produced by fine blanking. It is possible to align the characteristics of the torque spring portion with high-accuracy punching, and the overall manufacturing cost can be reduced.

さらに本発明によれば、可動シンカのシンカ部とトルクばね部とを一体化し、横編機に多数使用される可動シンカ装置での特性のばらつきを減少させることができるので、編成される編地が安定し、高品質化を図ることができる。   Furthermore, according to the present invention, since the sinker portion of the movable sinker and the torque spring portion are integrated, the variation in characteristics in the movable sinker device used in many flat knitting machines can be reduced. Is stable and high quality can be achieved.

本発明の実施の一形態としての可動シンカ11の構成を示す側面図である。It is a side view which shows the structure of the movable sinker 11 as one Embodiment of this invention. 図1に示す可動シンカ11を横編機で使用する際に組合わされる主要な部品を示す側面図である。It is a side view which shows the main components combined when the movable sinker 11 shown in FIG. 1 is used with a flat knitting machine. 図1の可動シンカ11を装着する横編機20の概略的な構成を示す部分的な側面断面図である。FIG. 2 is a partial side sectional view showing a schematic configuration of a flat knitting machine 20 to which the movable sinker 11 of FIG. 1 is attached. 図1に示す可動シンカ11を用いる可動シンカ装置25の概略的な構成を示す側面断面図である。It is side surface sectional drawing which shows schematic structure of the movable sinker apparatus 25 using the movable sinker 11 shown in FIG. 従来からの可動シンカ装置1の構成を示す部分的な側面図である。It is a partial side view which shows the structure of the conventional movable sinker apparatus. 図5の可動シンカ装置1での変位量と荷重との関係を簡略化して示すグラフである。It is a graph which simplifies and shows the relationship between the displacement amount and load in the movable sinker apparatus 1 of FIG.

符号の説明Explanation of symbols

4 ニードルプレート
5 歯口
11 可動シンカ
12 シンカ部
12a 支持部
12b 腕部
12g 欠如部
13 トルクばね部
13a 延出部
13b 迂回部
13c 遊端部
13d 突出部
13e 突起
15 編針
18 スペーサ
20 横編機
21 針床
25 可動シンカ装置
4 Needle plate 5 Tooth mouth 11 Movable sinker 12 Sinker part 12a Support part 12b Arm part 12g Lack part 13 Torque spring part 13a Extension part 13b Detour part 13c Free end part 13d Protrusion part 13e Protrusion 15 Knitting needle 18 Spacer 20 Flat knitting machine 21 Needle bed 25 Movable sinker device

図1は、本発明の実施の一形態としての可動シンカ11の構成を示す。以下図1〜図4では、図5で先行して説明している部分と対応する部分には同一の参照符を付して、重複する説明を省略する。     FIG. 1 shows a configuration of a movable sinker 11 as an embodiment of the present invention. In FIG. 1 to FIG. 4, portions corresponding to those previously described in FIG. 5 are denoted by the same reference numerals, and redundant description is omitted.

図1で、(a)は、7G(ゲージ)、すなわち25.4mm(1インチ)当り7本の割合で編針が配設される横編機用であり、(b)は12Gの横編機用である可動シンカ11をそれぞれ示す。可動シンカ11は、金属板材から、ファインブランキングによるプレス打抜き加工で、シンカ部12とトルクばね部13とが一体的に形成されている。シンカ部12の支持部12aを含む逆Ω字状の部分およびトルクばね部13の板厚は、たとえば、7G用が0.7mmであり、12G用が0.55mmである。この場合、シンカ部12の腕部12bの板厚は、7G用が0.49mm、12G用が0.38mmとなる。可動シンカ11の腕部12bの腕部板厚は、シンカ部材2の腕部2bと同様、隣接する編針の間隔の中央に配置されるように、減少させているからである。板厚および腕部板厚は、ゲージの数値が小さい7G用の方が大きくなっている。   In FIG. 1, (a) is for a flat knitting machine in which knitting needles are arranged at a rate of 7 G (gauge), ie, 7 pieces per 1 inch (25.4 mm), and (b) is a flat knitting machine of 12 G The movable sinkers 11 are shown respectively. In the movable sinker 11, the sinker portion 12 and the torque spring portion 13 are integrally formed from a metal plate material by press punching by fine blanking. The plate thickness of the inverted Ω-shaped portion including the support portion 12a of the sinker portion 12 and the torque spring portion 13 is, for example, 0.7 mm for 7G and 0.55 mm for 12G. In this case, the plate thickness of the arm portion 12b of the sinker portion 12 is 0.49 mm for 7G and 0.38 mm for 12G. This is because the arm plate thickness of the arm portion 12b of the movable sinker 11 is reduced so as to be arranged at the center of the interval between the adjacent knitting needles, similarly to the arm portion 2b of the sinker member 2. The plate thickness and arm plate thickness are larger for 7G with smaller gauge values.

シンカ部12は、図5(a)に示すシンカ部材2と同様に、外周が円弧状の支持部12aと、支持部12aから一方に延びる腕部12bとを有する。腕部12bには、シンカ部材2の腕部2bの編糸受け部2cおよび前縁部2dと同様の編糸受け部12cおよび前縁部12dがそれぞれ形成されている。7Gの横編機よりも12Gの横編機の方が細い編糸を使用するので、編糸受け部12cの凹所は、(b)に示す12G用の方が小さくなっている。編糸受け部12cの違いと、表1に示す違いとを除き、可動シンカ11は、7G用と12G用とでほぼ同等の構成を有する。以下、同等の構成を有する部分について説明する。   Similar to the sinker member 2 shown in FIG. 5A, the sinker portion 12 includes a support portion 12 a having an arcuate outer periphery and an arm portion 12 b extending from the support portion 12 a to one side. A knitting yarn receiving portion 12c and a front edge portion 12d similar to the knitting yarn receiving portion 2c and the front edge portion 2d of the arm portion 2b of the sinker member 2 are formed on the arm portion 12b, respectively. Since the 12G flat knitting machine uses finer knitting yarn than the 7G flat knitting machine, the recess of the knitting yarn receiving portion 12c is smaller for 12G shown in FIG. Except for the difference in the knitting yarn receiving portion 12c and the difference shown in Table 1, the movable sinker 11 has almost the same configuration for 7G and 12G. Hereinafter, the part which has an equivalent structure is demonstrated.

可動シンカ11のシンカ部12の支持部12aと腕部12bとの中間部分からは、トルクばね部13が腕部12bの逆方向に延出される。この中間部分は、図5(a)に示すシンカ部材2でばね係止部2eが設けられている部分に相当する。シンカ部12は、この中間部分と、支持部12aと、さらに図の左方に腕部12bと逆方向に突出する部分とで、大略的に逆Ω字の形状を形成する。腕部12bと逆方向に突出する部分は、横編機のキャリッジに搭載されるカムの作用を受けて、腕部12bを歯口から強制的に退避させるためのカム作用部12fとなる。トルクばね部13には、シンカ部12から分岐する部分に連なる延出部13aに続いて、支持部12aの内周側で、仮想的な円心4cを迂回する迂回部13bが形成される。トルクばね部13には、迂回部13bに続いて、延出部13aに並行する遊端部13cが形成される。延出部13a、迂回部13bおよび遊端部13cは、大略的にU字形状となり、図5(a)に示す可動シンカ装置1の線ばね3の基端部3aを除く形状と大略的に同等となる。   From an intermediate portion between the support portion 12a and the arm portion 12b of the sinker portion 12 of the movable sinker 11, the torque spring portion 13 extends in the opposite direction of the arm portion 12b. This intermediate portion corresponds to a portion where the spring locking portion 2e is provided in the sinker member 2 shown in FIG. The sinker portion 12 is generally formed in an inverted Ω shape by the intermediate portion, the support portion 12a, and a portion protruding in the opposite direction to the arm portion 12b on the left side of the drawing. The portion protruding in the direction opposite to the arm portion 12b becomes a cam action portion 12f for forcibly retracting the arm portion 12b from the tooth opening under the action of a cam mounted on the carriage of the flat knitting machine. In the torque spring portion 13, a bypass portion 13b that bypasses the virtual circle center 4c is formed on the inner peripheral side of the support portion 12a, following the extension portion 13a that continues to the portion branched from the sinker portion 12. The torque spring portion 13 is formed with a free end portion 13c parallel to the extending portion 13a following the bypass portion 13b. The extending portion 13a, the detour portion 13b, and the free end portion 13c are substantially U-shaped, and are substantially the same as the shape excluding the base end portion 3a of the wire spring 3 of the movable sinker device 1 shown in FIG. It becomes equivalent.

ただし、このようなU字形状のみでは、図5(b)に示すトルクばね部6と同等となり、線長が短くなるので、図7に二点鎖線で示すように、プレスの打抜き加工では充分な変位量と荷重との関係が得られない。可動シンカ11のトルクばね部13では、線長を付加するために、迂回部13bと遊端部13cとの間に、図の左方、すなわち径方向の外方に突出する突出部13dを設けている。突出部13dを設けても、隙間を確保することができるように、シンカ部12側には欠如部12gとなる凹所が形成される。欠如部12gが設けられるのは、シンカ部12の支持部12aの外部である。欠如部12gの上方の部分は、支持部12aが浮き上がらないように上方から押える押圧部12hとなる。   However, since only such a U-shape is equivalent to the torque spring portion 6 shown in FIG. 5B and the wire length is shortened, as shown by a two-dot chain line in FIG. The relationship between the amount of displacement and the load cannot be obtained. In the torque spring portion 13 of the movable sinker 11, in order to add a line length, a protruding portion 13d is provided between the detour portion 13b and the free end portion 13c. ing. Even if the protruding portion 13d is provided, a recess serving as a missing portion 12g is formed on the sinker portion 12 side so that a gap can be secured. The lacking portion 12g is provided outside the support portion 12a of the sinker portion 12. The upper part of the lacking part 12g is a pressing part 12h that is pressed from above so that the support part 12a does not float.

図1に示すようなシンカ部12とトルクばね部13とが一体化される可動シンカ11は、ファインブランキング(FB)と呼ばれるプレス打抜き加工法で好適に製造することができる。ファインブランキングでは、打抜く部分の周囲を拘束しながら、クリアランスの小さい金型で塑性加工する。拘束のために、シンカ部12のΩ形状部分の内周側とトルクばね部13の外周側との隙間sの部分と、トルクばね部13の幅wとに、板厚に応じた最小寸法以上の値が必要となる。なお、シンカ部12の押圧部12hに対して隙間sを確保しつつ、トルクばね部13としての線長を延長するために、遊端部13cは、トルクばね部13としての径方向の内方に撓む形状を有し、先端付近には径方向の外方に突出する突起13eが形成されている。打抜き後には、必要に応じて仕上げ加工が行われ、熱処理も行われる。   The movable sinker 11 in which the sinker portion 12 and the torque spring portion 13 are integrated as shown in FIG. 1 can be suitably manufactured by a press punching method called fine blanking (FB). In fine blanking, plastic working is performed with a mold having a small clearance while restraining the periphery of the punched portion. For restraint, the gap s between the inner peripheral side of the Ω-shaped portion of the sinker portion 12 and the outer peripheral side of the torque spring portion 13 and the width w of the torque spring portion 13 are not less than the minimum dimension according to the plate thickness. The value of is required. In addition, in order to extend the line length as the torque spring part 13 while ensuring the clearance s with respect to the pressing part 12h of the sinker part 12, the free end part 13c is radially inward as the torque spring part 13. A protrusion 13e is formed in the vicinity of the tip and protrudes outward in the radial direction. After punching, finishing is performed as necessary, and heat treatment is also performed.

前述のように、7G用の可動シンカ11の板厚を0.7mmとすれば、隙間sおよび幅wの最小寸法を、たとえば、0.55mmおよび0.32mmとする。これは、板厚を基準とすれば、それぞれ79%および46%となる。同様に、12G用の可動シンカ11の板厚を0.55mmとすれば、隙間sおよび幅wの最小寸法は、0.5mmおよび0.3mmとすることができ、それぞれ板厚の91%および55%となる。このように、隙間sの最小寸法は板厚の70〜100%に、幅wの最小寸法は板厚の40〜60%に、それぞれ設定することが好ましい。   As described above, if the plate thickness of the movable sinker 11 for 7G is 0.7 mm, the minimum dimensions of the gap s and the width w are, for example, 0.55 mm and 0.32 mm. This is 79% and 46%, respectively, based on the plate thickness. Similarly, if the plate thickness of the movable sinker 11 for 12G is 0.55 mm, the minimum dimension of the gap s and the width w can be 0.5 mm and 0.3 mm, respectively 91% of the plate thickness and 55%. Thus, it is preferable to set the minimum dimension of the gap s to 70 to 100% of the plate thickness and the minimum dimension of the width w to 40 to 60% of the plate thickness.

図2は、図1に示す可動シンカ11を横編機で使用する際に組合わされる主要な部品を示す。可動シンカ11は、図5に示すシンカ部材2と同様に、横編機の針床に並設されるニードルプレート4の先端側に肉厚を減少させて形成する切欠部4aに収納される。切欠部4aの底部には、円弧状の内周面を有するシンカ支承用凹所4bが形成されており、シンカ支承用凹所4bにはシンカ部12の支持部12aが嵌合する。シンカ支承用凹所4bの円弧の仮想的な円心4cは、可動シンカ11の揺動変位の中心となる。薄肉化されている切欠部4aの頂部には、トルクばね部13の突起13dが当接する押圧部4dが形成されている。   FIG. 2 shows main components combined when the movable sinker 11 shown in FIG. 1 is used on a flat knitting machine. Similar to the sinker member 2 shown in FIG. 5, the movable sinker 11 is housed in a notch 4a formed with a reduced thickness on the tip side of the needle plate 4 provided side by side on the needle bed of the flat knitting machine. A sinker support recess 4b having an arcuate inner peripheral surface is formed at the bottom of the notch 4a, and the support portion 12a of the sinker part 12 is fitted into the sinker support recess 4b. The virtual circular center 4c of the arc of the sinker support recess 4b is the center of the swinging displacement of the movable sinker 11. A pressing portion 4d with which the projection 13d of the torque spring portion 13 abuts is formed at the top of the thinned cutout portion 4a.

ニードルプレート4間の針溝には、編針15が収納される。編針15は、たとえば針本体16とニードルジャック17との組合わせで構成される。ニードルジャック17には、さらに選針用のセレクトジャックなどが組合わされる。針本体16は、たとえば先端のフック16aをべら16bで開閉するべら針であり、針幹部分には、目移し用の羽根16cを有する。ニードルジャック17には、横編機のキャリッジに搭載される編成駆動用のカム機構の作用を受けるバット17aが形成されている。   A knitting needle 15 is accommodated in the needle groove between the needle plates 4. The knitting needle 15 is composed of a combination of a needle body 16 and a needle jack 17, for example. The needle jack 17 is further combined with a select jack for needle selection. The needle body 16 is, for example, a latch needle that opens and closes a hook 16a at the tip with a latch 16b, and has a transfer blade 16c at the needle stem portion. The needle jack 17 is formed with a bat 17a that receives the action of a cam mechanism for knitting drive mounted on the carriage of the flat knitting machine.

図1に示す可動シンカ11は、編針15が収納される針溝を形成するニードルプレート4の切欠部4a内に装着されるので、針溝で編針15の上方には空間が生じる。この空間には、スペーサ18が挿入される。後述するように、可動シンカ11の上方部分は、スペーサ18とニードルプレート4の切欠部4aとで挟まれる状態で使用される。   Since the movable sinker 11 shown in FIG. 1 is mounted in the notch 4a of the needle plate 4 that forms a needle groove in which the knitting needle 15 is accommodated, a space is created above the knitting needle 15 in the needle groove. A spacer 18 is inserted into this space. As will be described later, the upper portion of the movable sinker 11 is used in a state of being sandwiched between the spacer 18 and the notch 4 a of the needle plate 4.

図3は、可動シンカ11を装着する横編機20の概略的な構成を示す。ニードルプレート4は、横編機20の針床21に、紙面に垂直な方向に間隔を空けて並設される。前述のように、可動シンカ11のシンカ部12の支持部12a、腕部12bおよびカム作用部12fを除く部分やトルクばね部13の遊端部13cなどの上方部分は、ニードルプレート4の切欠部4aとスペーサ18とで挟まれる。切欠部4aの上部中央では、押え板22が紙面に垂直な方向に貫通する。シンカ部12の腕部12bは、歯口5側に突出する。支持部12aでの揺動変位で、腕部12bは歯口4に対して進退する旋回変位を行う。トルクばね部13の遊端部13cの先端付近の突起13eは、ニードルプレート4の押圧部4dで押圧され、腕部12bは図の時計回り方向のトルクで付勢される。このトルクで、編糸受け部12cは編地の編糸を歯口5の下方に押圧する。ただし、編糸の張力に基づく抗力がばね付勢による押圧力よりも大きくなれば、編糸受け部12cは歯口5から後退して、編糸を無理に押圧しない。キャリッジに搭載されるカムで、カム作用部12fを押圧すれば、腕部12bが歯口5から後退するように強制することもできる。なお、横編機20では、通常、同様な構成の針床21が歯口5を挟んで対向し、各針床21は歯口5側が上昇するように傾斜している。したがって、歯口5での上下方向は、紙面上でのニードルプレート4側を上、針床21側を下とする上下方向ではなく、この上下方向に従う紙面に対しては、左下が下、右上が上となるように傾斜している。   FIG. 3 shows a schematic configuration of the flat knitting machine 20 on which the movable sinker 11 is mounted. The needle plate 4 is juxtaposed on the needle bed 21 of the flat knitting machine 20 with an interval in a direction perpendicular to the paper surface. As described above, the upper portion of the movable sinker 11 excluding the support portion 12a, the arm portion 12b and the cam action portion 12f of the sinker portion 12 and the free end portion 13c of the torque spring portion 13 are notched portions of the needle plate 4. 4a and the spacer 18 are sandwiched. In the upper center of the notch 4a, the presser plate 22 penetrates in a direction perpendicular to the paper surface. The arm portion 12b of the sinker portion 12 protrudes toward the mouth opening 5 side. The arm portion 12b performs a turning displacement that advances and retreats with respect to the tooth opening 4 by the swing displacement at the support portion 12a. The protrusion 13e near the tip of the free end portion 13c of the torque spring portion 13 is pressed by the pressing portion 4d of the needle plate 4, and the arm portion 12b is urged by the clockwise torque in the drawing. With this torque, the knitting yarn receiving portion 12 c presses the knitting yarn of the knitted fabric downward of the tooth mouth 5. However, if the drag force based on the tension of the knitting yarn becomes larger than the pressing force due to the spring bias, the knitting yarn receiving portion 12c moves backward from the tooth opening 5 and does not force the knitting yarn. If the cam acting portion 12f is pressed with a cam mounted on the carriage, the arm portion 12b can be forced to retract from the tooth opening 5. In the flat knitting machine 20, a needle bed 21 having a similar configuration is usually opposed to each other with the tooth mouth 5 interposed therebetween, and each needle bed 21 is inclined so that the tooth mouth 5 side rises. Accordingly, the vertical direction at the tooth mouth 5 is not the vertical direction with the needle plate 4 side up and the needle bed 21 side down on the paper surface. Inclined so that is at the top.

図4は、図1(a)に示す7G用の可動シンカ11を用いる可動シンカ装置25の概略的な構成を示す。(a)は、編糸受け部12cが編糸を歯口5の下方に押込む下限の状態を示し、(b)は上限の状態を示す。上限の状態では、編糸受け部12cが編糸によって押上げられるか、または、カム作用部12fへの押圧で腕部12bが強制的に押上げられる。可動シンカ11は、(a)に示す下限の状態と(b)に示す上限の状態との間で揺動変位が可能である。この揺動変位は、シンカ部12の支持部12aの外周がニードルプレート4のシンカ支承用凹部4bで支承され、その円弧状の内周面による案内で、円弧の仮想的な円心4cを中心として行われる。揺動変位の間に、支持部12aがシンカ支承用凹部4bから離脱しないように、シンカ部12の端部の当接部12hは、先端付近のいずれかの部分で押え板22の下面に当接している。トルクばね部13の遊端部13cでは、径方向の外方に突出する突起13eの部分が、ニードルプレート4の押圧部4dに当接している。当接している位置は、押え板22よりも歯口5寄りとなる。   FIG. 4 shows a schematic configuration of the movable sinker device 25 using the 7G movable sinker 11 shown in FIG. (A) shows a lower limit state in which the knitting yarn receiver 12c pushes the knitting yarn below the mouthpiece 5, and (b) shows an upper limit state. In the upper limit state, the knitting yarn receiving portion 12c is pushed up by the knitting yarn, or the arm portion 12b is forcibly pushed up by pressing against the cam action portion 12f. The movable sinker 11 can swing and displace between a lower limit state shown in (a) and an upper limit state shown in (b). This rocking displacement is caused by the outer periphery of the support portion 12a of the sinker portion 12 being supported by the sinker support recess 4b of the needle plate 4 and guided by the arc-shaped inner peripheral surface thereof, and centering on the virtual circular center 4c of the arc. As done. The abutting portion 12h at the end of the sinker portion 12 abuts the lower surface of the presser plate 22 at any portion near the tip so that the support portion 12a does not separate from the sinker supporting recess 4b during the swinging displacement. It touches. In the free end portion 13 c of the torque spring portion 13, a portion of the protrusion 13 e that protrudes outward in the radial direction is in contact with the pressing portion 4 d of the needle plate 4. The abutting position is closer to the tooth opening 5 than the presser plate 22.

図5(a)に示すように、線ばね3がシンカ部材2と別体で、線ばね3の基端部3aをシンカ部材2のばね係止部2eで弾発的に保持する場合は、ばね係止部2eが比較的大きな部分を占め、並行する遊端部3c側を変形させる余地は小さい。可動シンカ11では、シンカ部12とトルクばね部13とが一体化され、シンカ部材2のようなばね係止部2eを設ける必要はなく、遊端部13cの下方にスペースを設けることができる。したがって、遊端部13cの先端付近に、径方向の外方に突出する突起13eを設けても、遊端部13cの先端などがシンカ部12側に接触しないようにすることができる。突起13eの頂部は、曲率半径が比較的小さい凸曲面であり、ニードルプレート4の押圧部4dとは安定に点接触し、しかも押圧部4aの表面に沿っての移動も円滑に行うことができる。   As shown in FIG. 5A, when the wire spring 3 is separate from the sinker member 2 and the base end portion 3a of the wire spring 3 is elastically held by the spring locking portion 2e of the sinker member 2, The spring locking portion 2e occupies a relatively large portion, and there is little room for deforming the parallel free end portion 3c side. In the movable sinker 11, the sinker portion 12 and the torque spring portion 13 are integrated, and it is not necessary to provide the spring locking portion 2e like the sinker member 2, and a space can be provided below the free end portion 13c. Therefore, even if the protrusion 13e protruding radially outward is provided near the tip of the free end portion 13c, the tip of the free end portion 13c can be prevented from coming into contact with the sinker portion 12 side. The top portion of the protrusion 13e is a convex curved surface having a relatively small radius of curvature, can stably make point contact with the pressing portion 4d of the needle plate 4, and can smoothly move along the surface of the pressing portion 4a. .

なお、図1に示す可動シンカ11では、腕部12bの板厚を減少させて他の部分と異ならせているけれども、全体を同一の板厚にしても、可動シンカ装置としての機能は同等に果すことができる。また、可動シンカ11の支持部12aを支承するシンカ支承用凹部4bをニードルプレート4に設けているけれども、針床21に設けることもできる。カム作用部12fは、押下げ作用でシンカ部12に反時計回り方向のトルクを受けるように形成されているけれども、歯口5と反対方向への引込作用で同様のトルクを受けるように、図示のような横方向ではなく、縦方向に形成することもできる。このように、本発明の精神と範囲から逸脱しなければ、本発明への変化および変更がなされてもよいことは、いうまでもない。   In the movable sinker 11 shown in FIG. 1, although the plate thickness of the arm portion 12b is reduced to be different from other portions, the function as the movable sinker device is equivalent even if the entire plate has the same thickness. Can be done. Further, although the sinker support recess 4 b for supporting the support portion 12 a of the movable sinker 11 is provided in the needle plate 4, it can also be provided in the needle bed 21. Although the cam action portion 12f is formed so as to receive a counterclockwise torque from the sinker portion 12 by the push-down action, the cam action portion 12f is illustrated so as to receive a similar torque by the retraction action in the direction opposite to the tooth opening 5. It can also be formed in the vertical direction instead of the horizontal direction. Thus, it goes without saying that changes and modifications to the present invention may be made without departing from the spirit and scope of the present invention.

Claims (5)

シンカ部に支持部と腕部とを設けておき、支持部は、針床の歯口近傍に設ける円弧状の案内部によって、該円弧の円心を中心として揺動変位可能に支持し、腕部は、歯口に進出させて、支持部に作用させるトルクばねで、該腕部の先端側で編地を下方に押下げるように付勢する可動シンカであって、
腕部側から分岐して支持部側に延出する延出部と、
延出部に接続され、該円心の周囲を迂回する迂回部と、
迂回部に接続され、径方向の外方に突出する突出部と、
突出部に接続され、延出部に並行する遊端部と
を含むトルクばね部が、シンカ部と一体的に形成されていることを特徴とする可動シンカ。
A support part and an arm part are provided in the sinker part, and the support part is supported by an arc-shaped guide part provided near the mouth of the needle bed so as to be swingable and displaceable around the center of the arc. The part is a movable sinker that urges the knitted fabric to be pushed downward on the tip side of the arm part by a torque spring that advances to the mouth and acts on the support part,
An extending part that branches off from the arm part side and extends to the support part side;
A detour part connected to the extension part and detouring around the circle;
A projecting portion connected to the detour portion and projecting radially outward;
A movable sinker characterized in that a torque spring part including a free end part connected to the projecting part and parallel to the extending part is formed integrally with the sinker part.
前記シンカ部は、大略的にΩ字形状を有し、
前記支持部は、該Ω字形状の中間で、円弧状の外周と円弧状の内周との間に予め定める幅を有するように形成され、
前記トルクばね部の迂回部は、該支持部の内側に形成され、
前記突出部は、該支持部の外部に形成さていることを特徴とする請求項1記載の可動シンカ。
The sinker portion has a generally Ω-shape,
The support part is formed to have a predetermined width between the arc-shaped outer periphery and the arc-shaped inner periphery in the middle of the Ω-shape,
The bypass portion of the torque spring portion is formed inside the support portion,
The movable sinker according to claim 1, wherein the projecting portion is formed outside the support portion.
前記シンカ部の支持部は、針床上に所定間隔毎に配設されるニードルプレートの先端寄りに形成されるシンカ支承用凹部で支持され、
前記トルクばね部の遊端部は、ニードルプレート側に設けられる押圧部に当接する突起を有することを特徴とする請求項1または2記載の可動シンカ。
The support portion of the sinker portion is supported by a sinker support recess formed near the tip of the needle plate disposed at predetermined intervals on the needle bed,
3. The movable sinker according to claim 1, wherein the free end portion of the torque spring portion has a protrusion abutting against a pressing portion provided on the needle plate side.
前記シンカ部は、前記トルクばね部とシンカ部との間の隙間の最小寸法が板厚の70〜100%に、該トルクばね部の幅の最小寸法が板厚の40〜60%に、それぞれ設定され、ファインブランキングによって作製されることを特徴とする請求項1〜3のいずれか1つに記載の可動シンカ。   In the sinker portion, the minimum dimension of the gap between the torque spring portion and the sinker portion is 70 to 100% of the plate thickness, and the minimum width of the torque spring portion is 40 to 60% of the plate thickness, respectively. The movable sinker according to any one of claims 1 to 3, wherein the movable sinker is set and manufactured by fine blanking. 請求項1〜4のいずれか1つに記載の可動シンカを備えることを特徴とする横編機。   A flat knitting machine comprising the movable sinker according to any one of claims 1 to 4.
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