JP6606788B1 - Elastically deformable string - Google Patents
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Abstract
【課題】結び目を必要としない弾性変形可能な紐において、変形後の紐をより強い弾性力で復元させることを目的とする。【解決手段】紐は、左右両端領域を除く中間領域が異なる弾性力を有する複数の領域に分けられて構成され、かつ軸線方向全長に渡って断面が略同一の円形形状であり、紐の外形を形成する外層と外層の内部全長に渡って連続配置される芯材からなり、外層の中間領域は、外層用糸を異なる編み込みにより異なる弾性力を有する領域が複数形成され、外層の左右両端領域は、外層用糸を密に編み込んで形成され、芯材は、伸縮性を有する紐で構成され、中間領域の内部に弛緩及び/又は蛇行した状態で配置されている。【選択図】図1An object of the present invention is to restore a deformed string with a stronger elastic force in an elastically deformable string that does not require a knot. A string is formed by dividing an intermediate region excluding left and right end regions into a plurality of regions having different elastic forces, and has a circular shape with substantially the same cross section over the entire length in the axial direction. The outer layer and the core material continuously arranged over the entire inner length of the outer layer are formed, and in the intermediate region of the outer layer, a plurality of regions having different elastic forces are formed by different weaving yarns for the outer layer, and both left and right end regions of the outer layer Is formed by closely knitting the outer layer yarn, and the core material is formed of a stretchable string, and is arranged in a relaxed and / or meandering state inside the intermediate region. [Selection] Figure 1
Description
本発明は、結び目を必要としない弾性変形可能な紐に関する。 The present invention relates to an elastically deformable string that does not require a knot.
結び目を必要としない弾性変形可能な紐は、従来から良く知られている。具体的には、紐に軸線方向から張力を加えることで軸線方向に弾性変形可能なこぶ部と、当該こぶ部同士を連結する連結部から構成されるものであり、下記特許文献1〜3に示す3つの構造が主流となっている。 Elastically deformable strings that do not require a knot are well known in the art. Specifically, it is composed of a hump part that can be elastically deformed in the axial direction by applying tension to the string from the axial direction, and a connecting part that connects the hump parts. The three structures shown are mainstream.
特許文献1〜3に示す従来のこぶ部を有する紐は、いずれも一長一短あり、使用者の要求を十分に満たすことができなかった。 All of the strings having the conventional humps shown in Patent Documents 1 to 3 have their merits and demerits, and the user's request cannot be sufficiently satisfied.
図7は、特許文献1に記載の紐を示す図であり、ゴム等の弾性材からなる芯材の外側に、非伸縮性の繊維素材からなる外層を編み込んで構成し、こぶ部は繊維素材の「たるみ」によって形成している。弾性変形は紐の中心に真っ直ぐに配置されたゴム等の芯材の作用によるもので、主としてこぶ部に対応する部分が伸び縮みする、即ち、応力がゴム等の芯材の一部に集中することにより、繰り返し使用による芯材の部分的劣化が生じるとともに、こぶ部は非伸縮性の繊維素材の「たるみ」であることから、紐穴に通す際の摩擦抵抗が大きく、紐穴への装着時に使用者の指を痛めたり、紐穴に引っかかり易く、また紐穴そのものを損傷させてしまうこともあった。 FIG. 7 is a diagram showing a string described in Patent Document 1, and is formed by weaving an outer layer made of a non-stretchable fiber material on the outside of a core material made of an elastic material such as rubber, and a hump portion is a fiber material. It is formed by “sag”. Elastic deformation is due to the action of a core material such as rubber arranged straight in the center of the string, and the part corresponding to the hump part mainly expands and contracts, that is, stress concentrates on a part of the core material such as rubber. This results in partial deterioration of the core material due to repeated use, and the hump is a "slack" of non-stretchable fiber material, so the friction resistance when passing through the string hole is large, and it is attached to the string hole Occasionally, the user's finger hurts, is easily caught in the string hole, and the string hole itself may be damaged.
図8、9は、特許文献2、3に記載の紐を示す図であり、上記特許文献1に記載の発明が有する課題を解決するため出願人らによって改良されたものである。特許文献2、3に記載の中心ひも(本願の芯材に相当)は、弾性変形しない非伸縮性素材から構成れ、こぶ部の弾性変形は伸縮性を有するチューブ状ひも本体(本願の外層に相当)のみによって行うものである。これにより、こぶ部を弾性変形させるための力は小さくて済み、紐穴に通し易く、紐穴の損傷も少ない一方、逆に変形し易く元の形に復帰する力が弱いため、こぶ部と紐穴との間に強い応力が発生する激しい運動シーンにおいては、こぶ部が紐穴から抜け易いと言う欠点があった。 8 and 9 are diagrams showing the strings described in Patent Documents 2 and 3, which have been improved by the applicants in order to solve the problems of the invention described in Patent Document 1. The central straps described in Patent Documents 2 and 3 (corresponding to the core material of the present application) are made of a non-stretchable material that does not elastically deform, and the elastic deformation of the hump portion is a tube-shaped string main body (in the outer layer of the present application) Equivalent). As a result, the force for elastically deforming the hump part is small, it is easy to pass through the string hole, and the damage to the string hole is small, while conversely it is easy to deform and the force to return to the original shape is weak. In an intense motion scene where a strong stress is generated between the strap hole, there is a drawback that the hump portion is easily pulled out of the strap hole.
一方、特許文献2、3に記載の紐において、こぶ部の弾性力を強くしようとする場合、チューブ状ひも本体に用いる繊維にゴム等の繊維量を多く含ませれば良いが、そうすることでこぶ部そのものが固くなり、特許文献1に記載の紐と同様に、紐穴へ通す際の問題が発生することになる。 On the other hand, in the strings described in Patent Documents 2 and 3, when trying to increase the elastic force of the hump, it is sufficient to include a large amount of fiber such as rubber in the fiber used for the tube-shaped string main body. The knurled portion itself becomes hard, and a problem occurs when passing through the string hole as in the string described in Patent Document 1.
これに対し、出願人は特願2018−104865号(特許第6425364号、特許文献4)において、紐の中間領域にこぶ部を有さず、当該中間領域が通常の靴紐と同径でありながら、いくつかの領域ごとに引張弾性率を異ならせたものを提案している。 In contrast, in Japanese Patent Application No. 2018-104865 (Patent No. 6425364, Patent Document 4), the applicant does not have a knot in the middle region of the lace, and the middle region has the same diameter as a normal shoelace. However, it has been proposed to have different tensile elastic modulus for each of several regions.
しかしながら上記特願2018−104865号(特許第6425364号、特許文献4)に記載のものも、特許文献1〜3と同様に、その弾性変形は外層のみによって行われ、芯材は非伸縮性素材を用いているため、紐穴との間に強い応力が発生する激しい運動シーンにおいては、セットした紐の位置がずれ易い、と言う欠点があった。 However, as described in Japanese Patent Application No. 2018-104865 (Patent No. 6425364, Patent Document 4), as in Patent Documents 1 to 3, the elastic deformation is performed only by the outer layer, and the core material is a non-stretchable material. Therefore, there is a drawback that the position of the set string is likely to shift in a severe motion scene where a strong stress is generated between the string hole.
本願発明は、上記した従来技術が有する課題を解決し、紐穴にセットした際の復帰力を増強することにより、紐穴との間に強い応力が発生する激しい運動シーンにおいても、セットした紐の位置がずれにくい紐を提供することを目的とする。 The invention of the present application solves the above-mentioned problems of the prior art and enhances the return force when set in the string hole, so that the set string can be used even in intense exercise scenes where strong stress is generated between the string hole. The purpose of the present invention is to provide a string that is difficult to be displaced.
また、紐の左右両端領域の少なくともいずれか一方領域に、1個又は複数個の弾性変形可能な又は弾性変形しないこぶ部を有する実施形態においては、こぶ部を紐穴に通す際は、特許文献2、3に記載の紐と同じように軽い力で通し易くしたまま、紐穴に通し終わった際のこぶ部の復帰力及び紐穴に対する保持力は、弾性変形可能な芯材を用いることで、特許文献1に記載の紐と同程度となる紐を提供することを目的とする。 In an embodiment having one or a plurality of elastically deformable or non-elastically deformable humps in at least one of the left and right end regions of the string, when passing the hump through the string hole, Patent Document As with the cords described in 2 and 3, the return force of the hump and the holding force for the cord hole when it has been passed through the cord hole while being easy to pass with a light force can be obtained by using an elastically deformable core material. An object of the present invention is to provide a cord having the same level as that described in Patent Document 1.
本願発明は上記の目的を達成するため、軸線方向に弾性変形可能な紐であって、左右両端領域を除く中間領域が異なる弾性力を有する複数の領域に分けられて構成され、かつ軸線方向全長に渡って断面が略同一の円形形状であり、前記紐は、当該紐の外形を形成する外層と、当該外層の内部全長に渡って連続配置される芯材からなり、前記外層の前記中間領域は、外層用糸を異なる編み込みにより異なる弾性力を有する領域が複数形成され、前記外層の前記左右両端領域は、外層用糸を密に編み込んで形成され、前記芯材は、伸縮性を有する紐で構成され、前記中間領域の内部に弛緩及び/又は蛇行した状態で配置されている、ことを特徴とする。 In order to achieve the above object, the present invention is a string that is elastically deformable in the axial direction, the middle region excluding the left and right end regions is divided into a plurality of regions having different elastic forces, and the axial total length And the string is formed of an outer layer that forms the outer shape of the string and a core material that is continuously disposed over the entire inner length of the outer layer, and the intermediate region of the outer layer. A plurality of regions having different elastic forces are formed by different weaving outer layer yarns, the left and right end regions of the outer layer are formed by closely weaving outer layer yarns, and the core material is a stretchable string. And is arranged in a relaxed and / or meandering state inside the intermediate region.
上記構成を有する本願発明によれば、中間領域に軸線方向に異なる弾性力を有する複数の領域が形成されているため、靴紐や被服へ装着する際に、必要な箇所に必要なテンションをかけることができる一方、第一、第二発明のようなこぶ部を有さないため、装着時やテンション修正時に、煩わしい通し作業を必要とせず、しかも通常の組紐と同じ外見であり、見た目もすっきりとした組紐とすることができる。更に中間領域の内部に弛緩及び/又は蛇行した状態で配置されている芯材の弾性力が加わることによって、激しい運動シーンにおいても既にセットされている紐の位置ずれを抑止することができる。 According to the present invention having the above configuration, since a plurality of regions having different elastic forces in the axial direction are formed in the intermediate region, a necessary tension is applied to a necessary portion when being worn on a shoelace or clothing. On the other hand, because it does not have a hump like the first and second inventions, it does not require a troublesome threading work when attaching or tension correction, and it looks the same as a normal braid and has a clean appearance. Can be a braid. Furthermore, by applying the elastic force of the core material arranged in a relaxed and / or meandering state inside the intermediate region, it is possible to suppress the positional deviation of the already set string even in a severe motion scene.
上記のとおり本願発明は、芯材を弾性変形可能な紐とすることにより、特許文献1に記載の紐のように、真っ直ぐな状態で配置されたゴム素材に生じる応力集中が無く(ゴム素材だけの場合、真っ直ぐにしか配置できない)、芯材の破断や損傷を防ぐことができるとともに、特許文献2、3に記載の紐のように、外層のみで弾性力を発揮するものに比べて、紐全体の弾性力を高めることができるため、紐穴からの位置ずれを効果的に防止することができる。 As described above, the present invention makes the core material elastically deformable, so that there is no stress concentration generated in the rubber material arranged in a straight state like the cord described in Patent Document 1 (only the rubber material). In this case, the cord can be arranged only in a straight line), and the core material can be prevented from being broken or damaged. Since the entire elastic force can be increased, it is possible to effectively prevent displacement from the string hole.
以下、本発明の実施形態について図面を用いて詳細に説明する。なお、本発明は当該実施形態に何ら限定されるものではなく、その要旨を逸脱しない範囲内において、様々な態様で実施し得る。なお、本発明で言う芯材の「弛緩及び/又は蛇行した状態」とは、弾性力を有する芯材が、真っ直ぐに伸びた状態ではなく、弛緩し、蛇行した状態の形状を意味するものである。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to the said embodiment at all, and can be implemented with various aspects within the range which does not deviate from the summary. The “relaxed and / or meandered state” of the core material referred to in the present invention means a shape in which the core material having elastic force is not straightly stretched but relaxed and meandered. is there.
図1は紐1の断面を模式的に示した図であり、外層4は、左右両側に配置されるストッパー用こぶ10を除く中間領域が、通常の靴紐等と同径の中間領域9として形成されるとともに、当該中間領域9は、A、B、Cの3種の異なる弾性力(引張弾性率)を有する領域に分けられている。当該実施形態に係る外層の詳細構造は、出願人が提案した特願2018−104865号(特許第6425364号)を参照されたい。また異なる弾性力は2種、或いは4種以上であってもよく、その配列は弾性力が徐々に小さく(又は大きく)なるように配置しても、或いは高・中・低・中・高・・・の順で繰り返し配置しても良い。 FIG. 1 is a diagram schematically showing a cross-section of the lace 1, and the outer layer 4 has an intermediate area 9 having the same diameter as that of a normal shoelace or the like, except for the stopper knuckle 10 arranged on the left and right sides. While being formed, the intermediate region 9 is divided into regions having three different elastic forces (tensile elastic modulus) A, B, and C. For the detailed structure of the outer layer according to this embodiment, refer to Japanese Patent Application No. 2018-104865 (patent No. 6425364) proposed by the applicant. Further, there may be two or more different elastic forces, and the arrangement may be such that the elastic force gradually decreases (or increases), or high, medium, low, medium, high, -You may arrange repeatedly in the order.
芯材5は、中間領域9の外層4の内部において弛緩(或いは蛇行)した状態で配置されており、紐1は、中間領域9の外層4の弾性力と芯材5の弾性力の2つの弾性力によって伸縮可能となっている。 The core material 5 is disposed in a relaxed (or meandering) state inside the outer layer 4 in the intermediate region 9, and the string 1 is divided into two elastic forces, that is, the elastic force of the outer layer 4 in the intermediate region 9 and the elastic force of the core material 5. It can be expanded and contracted by elastic force.
当該実施形態に係る紐1は、以下説明する第一、第二参考実施形態のようにこぶ部2や長尺弾性部6が紐穴との位置関係で係止されるものではなく、紐穴に対しては通常の紐と同じ状態でセットされているが、中間領域9の外層4は、軸線方向に異なる弾性力を有する複数の領域が形成されているため、靴紐や被服へ装着する際に、必要な箇所に必要なテンションをかけることができ、また以下説明する第一、第二参考実施形態のようなこぶ部2や長尺弾性部6を有さないため、装着時やテンション修正時に、煩わしい通し作業を必要とせず、しかも通常の組紐と同じ外見であり、見た目もすっきりとした組紐とすることができる。 The string 1 according to this embodiment is not the one in which the hump part 2 or the long elastic part 6 is locked in the positional relationship with the string hole as in the first and second reference embodiments described below. However, the outer layer 4 of the intermediate region 9 is formed with a plurality of regions having different elastic forces in the axial direction, so it is attached to a shoelace or clothing. In this case, a necessary tension can be applied to a necessary portion, and since there is no hump portion 2 or a long elastic portion 6 as in the first and second reference embodiments described below, the tension can be applied at the time of mounting or tension. At the time of correction, it is possible to make a braid that does not require a troublesome threading operation, has the same appearance as a normal braid, and has a clean appearance.
さらに中間領域9の外層4の弾性力に加え、その内部に蛇行(及び/又は弛緩)した状態で配置されている芯材5の弾性力が加わることによって、激しい運動シーンにおいても既にセットされている紐1の位置ずれを抑止することができる。 Furthermore, in addition to the elastic force of the outer layer 4 in the intermediate region 9, the elastic force of the core material 5 arranged in a meandering (and / or relaxed) state is added to the inner layer 9, so that it is already set even in intense exercise scenes. The positional deviation of the string 1 can be suppressed.
なお、紐1の左右両側に配置されるストッパー用こぶ10は、以下説明する第二参考実施形態と同様に、靴等に装着された紐1のセット状態を維持するためのこぶであり、いわゆる端部ストッパーとしての機能を持たせるためのものであって、以下説明する第一参考実施形態における紐1の全長に渡って配置されるこぶ部2とは、その目的、機能を異にするものである。
また、芯材5は組紐又はリリアン編紐、或いはそれ以外の各種の編紐でもよく、更には撚紐であっても良い。いずれにしても、芯材5は、伸縮性の繊維と非伸縮性の繊維とを組み合わせた伸縮性を有する紐(弾性複合繊維紐を含む)であれば良い。
The stopper humps 10 disposed on both the left and right sides of the string 1 are humps for maintaining the set state of the string 1 attached to shoes or the like, as in the second reference embodiment described below. It is for giving a function as an end stopper, and has a different purpose and function from the hump portion 2 arranged over the entire length of the string 1 in the first reference embodiment described below. It is.
Further, the core material 5 may be a braid, a Lilian braid, or other various braids, and may be a twisted braid. Anyway, the core material 5 should just be a string (an elastic composite fiber string is included) which has the elasticity which combined the elastic fiber and the non-elastic fiber.
図2は、本発明の第一参考実施形態に係る弾性変形可能な紐1の全体斜視図である。図1は、紐1に対して外力が働いていない自然状態を示す全体像であり、軸線方向に同一径の複数のこぶ部2が適宜の間隔をおいて配置され、こぶ部2とこぶ部2との間は、小径の連結部3によって連結されている。通常、連結部3の径は装着対象物に形成される紐穴(例えば靴の紐穴)よりも小さく、こぶ部2の径は紐穴より大きいものを使用するものであり、連結部3は紐穴を摩擦接触することなく通過し、こぶ部2は紐穴との摩擦接触しつつ変形して通過するようになっている。紐1の両端部分は、最初に紐穴に通すリード部分であり、基本的に連結部3と同様の構成か、或いはそれより細く硬く構成され、紐が解けたり、糸がばらけたりしないよう、樹脂等で被覆されている。 FIG. 2 is an overall perspective view of the elastically deformable string 1 according to the first embodiment of the present invention. FIG. 1 is an overall view showing a natural state in which an external force is not applied to the string 1, and a plurality of humps 2 having the same diameter are arranged at appropriate intervals in the axial direction. 2 is connected by a small diameter connecting portion 3. Usually, the diameter of the connecting portion 3 is smaller than a string hole (for example, shoelace hole of a shoe) formed on the wearing object, and the diameter of the hump portion 2 is larger than that of the string hole. It passes through the string hole without frictional contact, and the hump portion 2 is deformed while being in frictional contact with the string hole. Both end portions of the cord 1 are lead portions that are first passed through the cord hole, and basically have the same configuration as the connecting portion 3 or are thinner and harder so that the cord is not unwound and the yarn is not loosened. It is covered with a resin or the like.
図3は、紐1の断面を模式的に示した図であり、(a)は外力を与えていない自然状態を示し、(b)は軸線方向からの外力によって最大限に引っ張られた状態を示している。図3に示すとおり、紐1は、外形を形成する外層4と、当該外層4の内部全長に渡って連続して配置される芯材5とで構成される。外層4の構造は特許第5079926号と基本的に同じであり、伸縮性の糸と非伸縮性の糸を適宜の組合せで編み込んだ組紐であり、こぶ部2は疎に編み込むことで柔らかく膨出するよう形成され、連結部3は密に編み込むことで硬く細く形成されている(当該連結部3は、通常の紐と同様に実質的に弾性変形しない)。 FIG. 3 is a diagram schematically showing a cross section of the string 1. FIG. 3A shows a natural state where no external force is applied, and FIG. 3B shows a state where the cord is pulled to the maximum by an external force from the axial direction. Show. As shown in FIG. 3, the string 1 includes an outer layer 4 that forms an outer shape, and a core member 5 that is continuously arranged over the entire inner length of the outer layer 4. The structure of the outer layer 4 is basically the same as that of Japanese Patent No. 5079926, and is a braid formed by knitting a stretchable yarn and a non-stretchable yarn in an appropriate combination, and the hump portion 2 swells softly by knitting loosely. The connecting portion 3 is formed so as to be hard and thin by being tightly knitted (the connecting portion 3 is not substantially elastically deformed like a normal string).
芯材5は、外層4内に配置する細く弾性変形可能な編み紐であり、図3(a)に示すとおり、こぶ部2の内部において蛇行した状態で配置され、連結部3の内部では真っ直ぐに伸びた状態で配置されている。 The core material 5 is a thin elastically deformable braid arranged in the outer layer 4, and is arranged in a meandering state inside the hump portion 2 as shown in FIG. 3A, and straight inside the connecting portion 3. It is arranged in a stretched state.
芯材5は、天然ゴム、合成ゴム等の弾性素材からなる伸縮性糸と、ナイロン、ポリエステル等の非弾性素材からなる非伸縮性糸を、適宜の本数比で編み込んだ編紐(例えば組紐やリリアン編紐)として形成され、伸縮性を有する。芯材5の弾性力は、伸縮性糸と非伸縮性糸の本数比で変化させることができ、例えば、伸縮性糸と非伸縮性糸の本数比を1:1、1:2、1:3、1:4、1:5、1:6等の適宜の本数比で編むことができる。この本数比を適宜に決定することで、芯材5の弾性力を調整することができる。 The core material 5 is a knitted string (for example, braided string or knitted string) in which an elastic yarn made of an elastic material such as natural rubber or synthetic rubber and a non-elastic yarn made of an inelastic material such as nylon or polyester are knitted in an appropriate ratio. Lilian braided cord) and has elasticity. The elastic force of the core material 5 can be changed by the number ratio of the stretchable yarn and the non-stretchable yarn. For example, the number ratio of the stretchable yarn and the non-stretchable yarn is 1: 1, 1: 2, 1: It can be knitted with an appropriate number ratio such as 3, 1: 4, 1: 5, 1: 6. The elastic force of the core material 5 can be adjusted by appropriately determining the number ratio.
また芯材5に用いる編紐は、伸縮性繊維と非伸縮性繊維を一体化した、いわゆる公知の伸縮性複合繊維糸のみを用いて編んだ編紐でも良い。この伸縮性複合繊維糸を用いる場合、微細な伸縮性繊維と微細な非伸縮性繊維を適宜の割合で配合することができるため、前記した伸縮性糸及び非伸縮性糸を用いる場合に比べて、芯材5の弾性力を微調整することができる。本願発明においては、芯材5の機能を考えて、伸縮性繊維の配合割合は、非伸縮性繊維に対して15〜50%の範囲とすることが好ましい。 The knitted string used for the core material 5 may be a knitted string knitted using only a so-called known stretchable composite fiber yarn in which stretchable fibers and non-stretchable fibers are integrated. When using this stretchable composite fiber yarn, fine stretchable fibers and fine non-stretchable fibers can be blended at an appropriate ratio, so compared to the case of using the aforementioned stretchable yarn and non-stretchable yarn. The elastic force of the core material 5 can be finely adjusted. In the present invention, considering the function of the core material 5, the blending ratio of the stretchable fibers is preferably in the range of 15 to 50% with respect to the non-stretchable fibers.
図4は、紐1を製造する装置及び方法を模式的に示したものであり、上記により予め作成した芯材5を中心として、非伸縮性糸であるナイロン糸7と伸縮性糸であるゴム糸8を適宜の組合せで編み込むものであり、引き上げ速度を調整することにより疎又は密に編み込み、柔らかく膨出するこぶ部2と、硬く細い連結部3が外層4として形成される。同時に、その内部中心に位置する芯材5は、こぶ部2の内部で蛇行した状態で配置され、連結部3の内部では真っ直ぐに伸びた状態で配置される。 FIG. 4 schematically shows an apparatus and a method for manufacturing the string 1, and a nylon thread 7 that is a non-stretchable thread and a rubber that is a stretchable thread, centering on the core material 5 prepared in advance as described above. The yarn 8 is knitted in an appropriate combination, and the protruding portion 2 that swells softly and bulges loosely or densely by adjusting the pulling speed and the hard and thin connecting portion 3 are formed as the outer layer 4. At the same time, the core member 5 located at the center of the inside is arranged in a meandering manner inside the hump portion 2 and arranged in a state of extending straight inside the connecting portion 3.
芯材5は、硬く細い連結部3の内部では外層4と密着(圧着)しており、柔らかく膨出したこぶ部2の内部では外層4と密着せず、ほぼフリーな蛇行状態となっている。 The core material 5 is in close contact (crimping) with the outer layer 4 inside the hard and thin connecting portion 3, and is not in close contact with the outer layer 4 inside the softly bulging hump portion 2, and is in a substantially free meandering state. .
以上の装置と方法を用いて製造された紐1は、疎に編み込むことで柔らかく膨出するよう形成されたこぶ部2が軸線方向からの外力によって容易に弾性変形する一方、密に編み込むことで硬く細く形成される連結部3は、ほとんど変形しない。 The string 1 manufactured by using the above apparatus and method can be easily elastically deformed by an external force from the axial direction while the hump portion 2 formed so as to swell softly by loosely knitting, while being tightly knitted. The connecting portion 3 formed to be hard and thin hardly deforms.
こぶ部2は、外層4の弾性力と、芯材5の弾性力の2つによって外力に抗するとともに復元力を有するものであるが、例えば、紐穴にこぶ部2を通常の速度で通す際は、紐穴とこぶ部2の摩擦力は外層4のこぶ部の弾性力に比例するため、小さな力で通すことができる。即ち、この状態において芯材5はまだ弛緩及び/又は蛇行した状態であるためその弾性力はほとんど生じていないため、こぶ部2のみの弾性力に抗しながら紐穴を通すからである。一方、激しい運動シーンでは、紐1の全体(又は局所的)に大きな外力が急激に加わるが、この場合、こぶ部2が有する外層4の弾性力と芯材5が有する弾性力とが合わさることで抵抗力が増し、紐穴からこぶ部2が容易に抜けることが無い。 The hump portion 2 has resistance against external force by the elastic force of the outer layer 4 and the elastic force of the core material 5 and has a restoring force. For example, the hump portion 2 is passed through the string hole at a normal speed. In this case, since the frictional force between the string hole and the hump portion 2 is proportional to the elastic force of the hump portion of the outer layer 4, it can be passed with a small force. That is, in this state, the core material 5 is still in a relaxed and / or meandering state, so that almost no elastic force is generated, so that the string hole is passed while resisting the elastic force of only the hump portion 2. On the other hand, in an intense motion scene, a large external force is suddenly applied to the entire string 1 (or locally). In this case, the elastic force of the outer layer 4 of the hump portion 2 and the elastic force of the core material 5 are combined. Thus, the resistance is increased, and the hump portion 2 is not easily pulled out from the string hole.
表1は、本参考実施形態に基づくサンプル1〜7と、比較例1、2を作成し、紐1の全体の弾性力、こぶ部による紐穴への影響等を実験した結果を示すものである。比較例1は特許文献2に記載の発明に基づく紐、比較例2は特許文献1に記載の発明に基づく紐であり、サンプル1〜7と、比較例1、2は、いずれも全長を50cm、こぶ部の径を7mm、こぶ部の数を30個として作製した。
Table 1 shows the results of making samples 1 to 7 and comparative examples 1 and 2 based on this reference embodiment, and experimenting the overall elastic force of the cord 1, the effect of the hump on the cord hole, and the like. is there. Comparative Example 1 is a string based on the invention described in Patent Document 2, Comparative Example 2 is a string based on the invention described in Patent Document 1, and Samples 1 to 7 and Comparative Examples 1 and 2 both have a total length of 50 cm. The diameter of the hump was 7 mm and the number of humps was 30.
引っ張り力は、各紐が5cm、10cm伸びるのに要した力をgで計測したものであり、紐全体の外力に抗する力(弾性力)を示している。表1に示す通り、サンプル1〜7は比較例1に比べて、いずれ2〜5倍の大きな弾性力を有しており、また弾性素材の量を増やすことで、比較例2よりも大きな弾性力を有させることもできる。 The pulling force is a force (elastic force) against the external force of the entire string, which is obtained by measuring the force required for each string to extend by 5 cm and 10 cm in g. As shown in Table 1, Samples 1 to 7 have an elastic force that is 2 to 5 times greater than that of Comparative Example 1, and by increasing the amount of the elastic material, the samples 1 to 7 are more elastic than Comparative Example 2. You can also have power.
紐穴への通し実験は、厚紙に形成した4mmの円形紐穴に対して各紐のこぶ部を合計100回通すことにより、どれだけ紐穴が変形拡大するかを計測したものであり、こぶ部の外力に抗する力(弾性力)を測ることができる。実験の結果、サンプル1〜7は、最大で20%程度紐穴が拡大したものの、比較例1と比べても大差がない一方、比較例2は紐穴が大きく損傷した。 The experiment through the string hole was to measure how much the string hole was deformed and expanded by passing the knot portion of each string 100 times through a 4 mm circular string hole formed on cardboard. The force (elastic force) against the external force of the part can be measured. As a result of the experiment, although the string holes of Samples 1 to 7 were enlarged by about 20% at the maximum, there was not much difference compared with Comparative Example 1, while in Comparative Example 2, the string holes were greatly damaged.
上記実験の結果からわかるとおり、本実施形態に係る紐1のこぶ部2は、ほぼこぶ部2の弾性力で紐穴を通過するため、大きな力を必要とせず、また紐穴の損傷も抑えることができる。なお、紐穴に金属製の輪をカシメた構成の紐穴であれば、硬いこぶ部2でも紐穴の損傷は少ないため、多少弾性力の大きいこぶ部であっても良いが、こぶ部が弾性変形しない比較例2では紐穴を通すこと自体が難しい。 As can be seen from the results of the above experiment, the hump portion 2 of the string 1 according to the present embodiment passes through the string hole with almost the elastic force of the hump portion 2, so that a large force is not required and damage to the string hole is suppressed. be able to. In addition, if the string hole has a structure in which a metal ring is crimped to the string hole, even the hard hump part 2 has little damage to the string hole. In Comparative Example 2 which does not elastically deform, it is difficult to pass the string hole itself.
表1の最右欄は、10cmの芯材のみの引張試験結果であり、各芯材の最大伸長(最大限に伸ばした長さ)を示しており、サンプル1〜7の芯材5が比較例1と比べて大きな伸長性を有していることが分かる。また一部のサンプルは、ゴム素材のみを用いた比較例2に比べても、大きく弾性変形することが分かる。これは、本願発明の芯材5が、ゴム等の伸縮性素材を編むことにより形成され、所定長さの芯材5には、その自然長よりも長い伸縮性素材が螺旋状或いは蛇行して編みこまれているため、ゴム素材のみを用いた比較例2に比べても、大きく弾性変形するからである。従って、一本の太いゴム糸を使用する比較例2よりも、弾性力を柔軟に変化させることができる。 The rightmost column of Table 1 is the result of a tensile test of only a 10 cm core material, and indicates the maximum elongation (maximum length) of each core material, and the core materials 5 of samples 1 to 7 are compared. It can be seen that it has a greater extensibility compared to Example 1. In addition, it can be seen that some of the samples are greatly elastically deformed as compared with Comparative Example 2 using only the rubber material. This is because the core material 5 of the present invention is formed by knitting a stretchable material such as rubber, and the stretchable material longer than its natural length is spirally or meandered to the core material 5 of a predetermined length. This is because, since it is knitted, it is greatly elastically deformed compared to Comparative Example 2 using only a rubber material. Therefore, the elastic force can be changed more flexibly than Comparative Example 2 using a single thick rubber thread.
なお上記実験用に作成したサンプルは、伸縮性糸と非伸縮性糸をいくつかの代表的本数比で作成したものであるが、本願発明はこの本数比に限定されるものではない。 In addition, although the sample produced for the said experiment is what produced the elastic thread | yarn and the non-stretchable thread | yarn by some typical number ratios, this invention is not limited to this number ratio.
図4は、上記した第一参考実施形態の変形例に係る紐1の断面を模式的に示したものである。当該変形例は、複数種の径を有するこぶ部2が、紐1の軸線方向に配置されたものであり、例えば靴用紐とする際、靴のつま先側のこぶ部2は小径とし、甲側のこぶ部2の径を大径として、紐穴への装着を容易にしたものである。当該変形例における各種の径を有するこぶ部2の内部にも、芯材5が蛇行するように配置されている。当該外層の詳細構造は、出願人が提案した国際公開WO2018/163268A1公報を参照されたい。 FIG. 4 schematically shows a cross-section of the string 1 according to the modified example of the first reference embodiment described above. In this modification, the hump portion 2 having a plurality of types of diameters is arranged in the axial direction of the string 1. For example, when forming a shoelace, the hump portion 2 on the toe side of the shoe has a small diameter, The diameter of the hump portion 2 on the side is made large so that it can be easily attached to the string hole. The core material 5 is also arranged to meander inside the hump portion 2 having various diameters in the modified example. For the detailed structure of the outer layer, refer to International Publication WO2018 / 163268A1 proposed by the applicant.
なお、本第一参考実施形態及びその変形例において、芯材5はこぶ部2の内部で蛇行した状態としているが、真っ直ぐに伸びていない、いわゆる弛緩した状態であれば良い。 In addition, in this 1st reference embodiment and its modification, although the core material 5 is the state meandering inside the hump part 2, what is necessary is just the so-called relaxed state which is not extending straight.
次に、本発明の第二参考実施形態について説明する。図5は紐1の断面を模式的に示した図であり、紐穴に通して固定される部分が、こぶ部2ではなく長尺弾性部6として形成されている。この長尺弾性部は、外層4の編み込過程において、連続した疎となるように形成するものであり、第一参考実施形態におけるこぶ部2と同様に、弾性変形可能となっている。なお第二参考実施形態に係る外層4の詳細構造は、出願人が提案した特願2017−57383号を参照されたい。 Next, a second reference embodiment of the present invention will be described. FIG. 5 is a diagram schematically showing a cross section of the string 1, and a portion that is fixed through the string hole is formed as a long elastic portion 6 instead of the hump portion 2. This long elastic portion is formed so as to be continuous and sparse in the process of weaving the outer layer 4, and can be elastically deformed similarly to the hump portion 2 in the first reference embodiment. For the detailed structure of the outer layer 4 according to the second reference embodiment, refer to Japanese Patent Application No. 2017-57383 proposed by the applicant.
芯材5は、長尺弾性部6の内部において蛇行(及び/又は弛緩)した状態で配置されており、紐1は、長尺弾性部6の弾性力と芯材5の2つの弾性力によって伸縮可能となっている。 The core material 5 is arranged in a meandering (and / or relaxed) state inside the long elastic portion 6, and the string 1 is caused by the elastic force of the long elastic portion 6 and the two elastic forces of the core material 5. It can be expanded and contracted.
なお、紐1の左右両側に配置されるストッパー用こぶ10は、靴等に装着された紐1のセット状態を維持するために形成した紐端部のこぶであり、いわゆる端部ストッパーとしての機能を持たせるためのものであって、第一実施形態における紐1の全長に渡って配置されるこぶ部2とは、その目的、機能を異にするものである。 The stopper humps 10 arranged on the left and right sides of the string 1 are knots on the end of the string formed to maintain the set state of the string 1 attached to shoes or the like, and function as a so-called end stopper. The hump part 2 arranged over the entire length of the string 1 in the first embodiment has a different purpose and function.
また長尺弾性部6の自然状態における径は、紐1の左右両側に配置したストッパー用こぶ10の径と同径、又は小径、或いは大径であっても良い。更に、長尺弾性部6とストッパー用こぶ10との間は、第一実施形態で説明した連結部3とすることができる。 The diameter of the long elastic portion 6 in the natural state may be the same diameter as the diameter of the stopper hump 10 disposed on the left and right sides of the string 1, or may be a small diameter or a large diameter. Furthermore, the connection part 3 demonstrated in 1st embodiment can be used between the elongate elastic part 6 and the hump 10 for stoppers.
第二参考実施形態の紐1によれば、例えば、紐穴に長尺弾性部6を通常の速度で通す際は、紐穴と長尺弾性部6の摩擦力は外層4の弾性力に比例するため、小さな力で通すことができる。即ち、この状態において芯材はまだ弛緩及び/又は蛇行した状態であるためその弾性力はほとんど生じていないため、長尺弾性部6のみの弾性力に抗しながら紐穴を通すからである。一方、激しい運動シーンでは紐1の全体(又は局所的)に大きな外力が急激に加わるが、この外力に対し、長尺弾性部6が有する外層4の弾性力と芯材5が有する弾性力とが合わさることで抵抗力が増し、紐穴から長尺弾性部6が容易にずれてしまうことを抑止することができる。 According to the string 1 of the second reference embodiment, for example, when the long elastic part 6 is passed through the string hole at a normal speed, the frictional force between the string hole and the long elastic part 6 is proportional to the elastic force of the outer layer 4. Therefore, it can pass with a small force. That is, in this state, since the core material is still in a relaxed and / or meandering state, almost no elastic force is generated, and thus the string hole is passed while resisting the elastic force of only the long elastic portion 6. On the other hand, in an intense exercise scene, a large external force is suddenly applied to the entire string 1 (or locally), but against this external force, the elastic force of the outer layer 4 that the long elastic portion 6 has and the elastic force that the core material 5 has As a result, the resistance increases and it is possible to prevent the long elastic portion 6 from being easily displaced from the string hole.
本願発明の実施形態及び上記各参考実施形態において、芯材5は組紐又はリリアン編紐として説明したが、それ以外の各種の編紐でもよく、更には撚紐であっても良い。いずれにしても、芯材5は、伸縮性の繊維と非伸縮性の繊維とを組み合わせた伸縮性を有する紐(弾性複合繊維紐)であれば良い。 In the embodiment of the present invention and each of the reference embodiments described above, the core material 5 has been described as a braided string or a Lilian braided string. However, other various braided strings may be used, and a twisted string may also be used. Anyway, the core material 5 should just be a string (elastic composite fiber string) which has the elasticity which combined the stretchable fiber and the non-stretchable fiber.
本願発明の実施形態及び上記第二参考実施形態に係る紐1の製造方法は、基本的に第一参考実施形態と同様であるため詳細な説明は省略する。 Since the manufacturing method of the string 1 which concerns on embodiment of this invention and said 2nd reference embodiment is the same as that of 1st reference embodiment fundamentally, detailed description is abbreviate | omitted.
以上のとおり、本願発明に係る紐1によれば、弾性変形可能な外層4に加えて、その内部に配置される芯材5も弾性変形可能であることから、装着後の外力に対しては、外層4の弾性力と芯材5の弾性力によって抗することができるため、所定のセット位置から容易にずれたりすることを抑止することができる。 As described above, according to the string 1 according to the present invention, in addition to the elastically deformable outer layer 4, the core material 5 disposed therein can also be elastically deformed. Since it can be resisted by the elastic force of the outer layer 4 and the elastic force of the core member 5, it can be prevented from easily deviating from a predetermined set position.
1 紐
2 こぶ部
3 連結部
4 外層
5 芯材
6 長尺弾性部
7 ナイロン糸
8 ゴム糸
9 中間領域
10 ストッパー用こぶ
DESCRIPTION OF SYMBOLS 1 String 2 Hump part 3 Connection part 4 Outer layer 5 Core material 6 Long elastic part 7 Nylon thread 8 Rubber thread 9 Middle area 10 Hump for stopper
Claims (12)
左右両端領域を除く中間領域が異なる弾性力を有する複数の領域に分けられて構成され、かつ軸線方向全長に渡って断面が略同一の円形形状であり、
前記紐は、当該紐の外形を形成する外層と、当該外層の内部全長に渡って連続配置される芯材からなり、
前記外層の前記中間領域は、外層用糸を異なる編み込みにより異なる弾性力を有する領域が複数形成され、
前記外層の前記左右両端領域は、外層用糸を密に編み込んで形成され、
前記芯材は、伸縮性を有する紐で構成され、前記中間領域の内部に弛緩及び/又は蛇行した状態で配置されている、
ことを特徴とする弾性変形可能な紐。 A string that is elastically deformable in the axial direction,
The middle region excluding the left and right end regions is divided into a plurality of regions having different elastic forces, and has a circular shape with substantially the same cross section over the entire length in the axial direction.
The string comprises an outer layer that forms the outer shape of the string and a core material that is continuously arranged over the entire inner length of the outer layer,
In the intermediate region of the outer layer, a plurality of regions having different elastic forces by forming different yarns for the outer layer are formed,
The left and right end regions of the outer layer are formed by closely knitting outer layer yarns,
The core material is composed of a stretchable string, and is arranged in a relaxed and / or meandering state inside the intermediate region.
An elastically deformable string characterized by that.
ことを特徴とする請求項1に記載の弾性変形可能な紐。 The stretchable string used for the core material is formed by knitting stretchable yarn and non-stretchable yarn at a ratio of 1: 1, 1: 2, 1: 3, 1: 4, or 1: 5. A braided or twisted twisted string,
The elastically deformable string according to claim 1.
ことを特徴とする請求項1に記載の弾性変形可能な紐。 The stretchable string used for the core material is a knitted string knitted using a stretchable composite fiber yarn in which stretchable fibers and non-stretchable fibers are integrated, or a twisted twisted string. The blending ratio of the fiber is 15 to 50% with respect to the non-stretchable fiber.
The elastically deformable string according to claim 1.
ことを特徴とする請求項2又は3に記載の弾性変形可能な紐。 The elastic yarn and the elastic fiber are made of synthetic rubber or natural rubber material,
The elastically deformable string according to claim 2 or 3.
ことを特徴とする請求項2又は3に記載の弾性変形可能な紐。 The non-stretchable yarn and the non-stretchable fiber are made of nylon or polyester material.
The elastically deformable string according to claim 2 or 3.
ことを特徴とする請求項2又は3に記載の弾性変形可能な紐。 The string used for the core material is a braided string or a Lilian braided string,
The elastically deformable string according to claim 2 or 3.
ことを特徴とする請求項1ないし6のいずれか1項に記載の弾性変形可能な紐。 The outer layer is a braid.
The elastically deformable string according to any one of claims 1 to 6, wherein the string is elastically deformable.
ことを特徴とする請求項1ないし7のいずれか1項に記載の弾性変形可能な紐。 The outer layer yarn is a combination of a stretchable yarn and a non-stretchable yarn, or a stretchable composite fiber yarn in which a stretchable fiber and a non-stretchable fiber are integrated.
The elastically deformable string according to any one of claims 1 to 7, wherein the string is elastically deformable.
ことを特徴とする請求項1ないし8のいずれか1項に記載の弾性変形可能な紐。 The intermediate region is configured by alternately arranging two or three types of regions having different elastic forces along the axial direction.
The elastically deformable string according to any one of claims 1 to 8, wherein the string is elastically deformable.
ことを特徴とする請求項1ないし8のいずれか1項に記載の弾性変形可能な紐。 The intermediate region is configured by sequentially arranging a plurality of regions in which the elastic force gradually decreases from one end to the other end along the axial direction.
The elastically deformable string according to any one of claims 1 to 8, wherein the string is elastically deformable.
ことを特徴とする請求項1ないし10のいずれか1項に記載の弾性変形可能な紐。 The string has one or a plurality of elastically deformable or non-elastically deformable humps in at least one of the left and right end regions.
The elastically deformable string according to any one of claims 1 to 10, wherein the string is elastically deformable.
ことを特徴とする請求項1ないし11のいずれか1項に記載の弾性変形可能な紐。
The intermediate region is connected by a connecting portion that does not elastically deform between the plurality of regions having different elastic forces.
The elastically deformable string according to any one of claims 1 to 11, wherein the string is elastically deformable.
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