JP3600040B2

JP3600040B2 - Sports shoes

Info

Publication number: JP3600040B2
Application number: JP28610098A
Authority: JP
Inventors: 誠一後藤
Original assignee: Mizuno Corp
Current assignee: Mizuno Corp
Priority date: 1998-09-22
Filing date: 1998-09-22
Publication date: 2004-12-08
Anticipated expiration: 2018-09-22
Also published as: JP2000093204A

Description

【０００１】
【発明の属する技術分野】
本発明は、甲被の鳩目飾りに配置した鳩目穴の配列を変更した運動靴に関するものである。
【０００２】
【従来の技術】
従来より、甲被を締め付ける構造として装着された鳩目穴の配列を変更した靴においては、たとえば、実用新案昭３８−１７９１７号（従来技術１）には、内側の鳩目穴と外側の鳩目穴を互いに対称にすることなく、外側の鳩目穴を内側の鳩目穴より１ポイント後方に偏るよう穿孔して、足が靴の踵方向および外甲側に滑動することを防止したことを特徴とする靴が開示されている。また、特開平８−６６２０５号（従来技術２）には、内外の紐穴の位置する角度を、最も爪先寄りにある紐穴については踏付線と平行に、最も踵寄りの紐穴については靴型中心線と概ね直角にして、足に対する靴のフィット性を向上させることを特徴とする靴も開示されている。更に、鳩目穴の配列を足軸に対して対称な位置から横に平行にずらしたり、足軸に対してある角度を持たす技術（従来技術３）に至っては、従来より業界内で広く実施されていることは周知の事実である。
【０００３】
【発明が解決しようとする課題】
しかし、実用新案昭３８−１７９１７号（従来技術１）に記載された鳩目穴を後方に偏るように穿孔したトレーニングシューズでは、紐締めの方向が鳩目穴の配列に対して外側後方に傾斜しており、内側の鳩目穴と外側の鳩目穴の間で剪断力が発生し、甲被が攀じれたりして足への靴のフィット性が優れなかった。また、特開平８−６６２０５号（従来技術２）に記載された、内外の紐穴の位置する角度を変化させる靴では、甲部峰角度という解剖学上の寸法を取り入れることで、足部の静的な状態でのフィット性を向上させることができたが、スポーツでの使用におけるような足部の動的な形状変化に対するフィット性については考慮されておらず、身体動作を補助する機能は提供されていない。
【０００４】
そこで、本発明は、運動時の足部の動的な形状変化を考慮した運動靴を提供することで、運動中にもフィット性を損なうことなく、足部が靴底に対して位置的相関関係を維持することにより、力の伝達損失を減少させ、身体運動の向上に貢献することを目的とするものである。
【０００５】
【課題を解決するための手段】
上記の目的を達成するために、足部の関節軸とその動きに着目し、動きが異なる足部の部位毎に、甲被の締め付け方向を変更する構造を持った運動靴とする。即ち、本発明は、甲被の前部開口部に沿って設けた鳩目飾りの内甲側と外甲側の相対峙する位置に複数の靴紐を挿通する鳩目穴を配置した運動靴において、相対峙する鳩目穴の中間点を結んだ線で、前記鳩目穴に沿う前部開口部の中間点を結んだ線でもある鳩目軸線が２箇所で屈曲するように形成する。前記鳩目軸線が屈曲する位置を、足部の中足趾節関節の近傍及び足根中足関節の近傍の位置に設定する。
【０００６】
【発明の実施の形態】
本発明の運動靴においては、運動靴を足にフィットさせる方法として、甲被の前部開口部に設けた鳩目飾りに穿孔した複数の鳩目穴に靴紐を挿通して締め付け度合いを調節する手段を用いている。
【０００７】
図３に示した人の足の骨格構造により運動時における人の足の骨格の動きを見ると、距腿関節軸を中心に足先が上を向く動き（背屈）と足先が下を向く動き（底屈）の中で、底屈時に副次的に生じる外転の動きから中足骨頭列は足軸に対して外側後方に傾斜した動きをする。また、距骨頚部背側から斜め後方外側に走る距骨下関節軸を中心に、足底が内側を向く回外と足底が外側を向く回内の動きを生じ、底屈時に生じる回外の動きで足根骨は足軸に対して内側後方に傾斜した動きをする。従って、甲被の鳩目飾りに設ける鳩目穴の位置を、足の骨格の各部位の底背屈時の変位に対して直交する位置に配置することによって、各部位での動きに対して効果的に甲被を締め付けることができ、足部が靴底に対して位置的相関関係を維持することができる。
【０００８】
即ち、甲被の締め付けの方向は、踵から足軸に沿って足長の６５〜７５％の距離の範囲にある中足趾節関節の近傍より踵側寄りの領域においては、背底屈時に副次的に生じる内転外転の動きを生じる中足骨頭列での動きに平行となるように外側後方に傾斜させ、また、踵から足軸に沿って足長の４５〜５５％の距離の範囲にある足根中足関節の近傍より踵側寄りの領域においては、回内、回外の動きを生じる足根骨での動きに平行となるように内側後方に傾斜させる。このため、甲被の前部開口部に設ける鳩目飾りの外甲側及び内甲側に相対峙して穿孔する鳩目穴と鳩目穴、および、鳩目穴に沿う相対峙する開口部とを結んだ直線上に中間点を設定し、中間点と中間点とを結んで鳩目軸線を想定し、その鳩目軸線が中足趾節関節の近傍及び足根中足関節の近傍の位置で屈曲するように鳩目穴および開口部を形成する。
【０００９】
前記鳩目軸線の最も爪先側にある中間点（始点）および最も履口側にある中間点（終点）は概ね足軸上にあり、かつ、鳩目軸線が屈曲する角度は、足軸に対する爪先から踵方向への水平投影角度が鳩目軸線の始点から中足趾節関節の近傍の間の領域においては０〜３０度の範囲にあり、中足趾節関節の近傍から足根中足関節の近傍の間の領域においては−１０〜−４５度の範囲にあり、足根中足関節の近傍から鳩目軸線の終点の間の領域においては１０〜３５度の範囲にあるように設定する。
【００１０】
本発明の実施例である靴紐による締め付け構造における作用効果は、他の方法による締め付け構造、例えば、ベルベットファスナーを用いたベルト構造による締め付け構造にも応用することができる。
【００１１】
【実施例】
本発明の実施例を図面に基づいて説明する。
図１は、本発明の実施例である運動靴を上面から見た平面図、図２は、本発明における運動靴の上面と人の足の骨格構造との位置関係を示す略図、図３は人の足の骨格構造を示す平面図である。運動靴の甲被の前部開口部に設けた鳩目飾りに穿孔した鳩目穴に靴紐を挿通して甲被の締め付け度合いを調節する構成の運動靴１において、甲被２の前部開口部３に沿って設けた鳩目飾り４の外甲側と内甲側の相対峙する位置に複数の鳩目穴５を形成する。
【００１２】
本実施例においては、図２に示すように、その相対峙する外甲側の鳩目穴５および開口部と内甲側の鳩目穴５および開口部を結んだ直線上に中間点６を設定し、中間点６と中間点６とを結んで鳩目軸線７を想定し、その鳩目軸線７が、中足趾節関節９の近傍及び足根中足関節１０の近傍の２か所で屈曲するように鳩目穴５を設定する。
【００１３】
その鳩目穴５は、鳩目軸線７の最も爪先側にある中間点（始点）６ａ及び最も履口側にある中間点（終点）６ｂが概ね足軸８上にあり、かつ鳩目軸線の始点６ａから中足趾節関節９の近傍までの鳩目軸線７ａの水平投影角度が足軸８に対して３０度（図２において、α）、中足趾節関節９の近傍から足根中足関節１０の近傍までの鳩目軸線７ｂの水平投影角度が足軸８に対して−３０度（図２において、β）、足根中足関節１０の近傍から鳩目軸線の終点６ｂまでの鳩目軸線７ｃの水平投影角度が１５度（図２において、γ）となるように設定する。
【００１４】
【発明の効果】
以上のように、本発明は、前記の構成にしたから、このような運動靴を使用する時には、運動中に底背屈、内外転の動きを生じる中足趾節関節における、あるいは回内、回外の動きを生じる足根中足関節における足部の動きに平行するように靴紐を締め付けることができるので、足部の動きに対して効果的に甲被が締めつけられて、足に対する靴のフィット性が向上する。即ち、運動中の身体加速局面等で蹴り出す動作（底屈）時に、足の骨格形状から副次的に発生する内外転や回内、回外といった動作による足の変形に対して、変形方向と概ね平行に甲被を締め付けることにより、足が靴の中でずれることを防止し、運動中の力の伝達損失を減少させ（エネルギーロスを防止して）、身体運動を向上させることができる。
【００１５】
更に、足部が靴底に対して位置的相関関係を維持することで、運動接地面に力を及ぼす靴底意匠に対しても適性位置に足を保つことができる。即ち、スパイクを有する靴ではスパイクに対して足を、意匠パターンを配したゴム底を有する靴では意匠パターンに対して足を適正位置に保持でき、トラクション向上を図った靴底意匠パターンの効果を引き出すことができる。
【００１６】
また、本発明のような靴紐による締め付け構造以外にも、例えばベルベットファスナーを用いたベルト構造による締め付け具を装着する場合にも応用することができる。
【図面の簡単な説明】
【図１】本発明の実施例である運動靴を上面から見た平面図。
【図２】本発明の実施例である運動靴の上面と人の足の骨格構造との位置関係を示す略図。
【図３】人の足の骨格構造を示す略図。
【符号の説明】
１運動靴
２甲被
３開口部
４鳩目飾り
５鳩目穴
６中間点
６ａ中間点（始点）
６ｂ中間点（終点）
７鳩目軸線
７ａ鳩目軸線
７ｂ鳩目軸線
７ｃ鳩目軸線
８足軸
９中足趾節関節
１０足根中足関節[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to athletic shoes in which the arrangement of eyelets arranged on the eyelet decoration of the upper is changed.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a shoe in which the arrangement of eyelets mounted as a structure for tightening the upper is changed, Utility Model No. 38-17917 (Prior Art 1) discloses an inner eyelet and an outer eyelet. A shoe characterized in that the outer eyelet is perforated one point behind the inner eyelet without being symmetrical to each other to prevent the foot from sliding in the heel direction and the upper side of the shoe. Is disclosed. Japanese Patent Application Laid-Open No. 8-66205 (Prior Art 2) discloses that the angle at which the inner and outer cord holes are located is parallel to the tread line for the cord hole closest to the toe, and for the cord hole closest to the heel. Also disclosed is a shoe characterized by being substantially perpendicular to the centerline of the last to improve the fit of the shoe to the foot. Further, a technique (conventional technology 3) in which the arrangement of eyelets is shifted laterally and parallel from a position symmetrical with respect to the foot axis or has a certain angle with respect to the foot axis has been widely implemented in the industry. Is a well-known fact.
[0003]
[Problems to be solved by the invention]
However, in the training shoes described in Utility Model No. 38-17917 (Prior Art 1) in which the eyelets are perforated so as to be deviated rearward, the stringing direction is inclined outward and rearward with respect to the arrangement of the eyelets. Shearing force was generated between the inner eyelet and the outer eyelet, and the instep fit was not good because the instep could climb. In the shoes described in JP-A-8-66205 (prior art 2), in which the angle at which the inner and outer cord holes are located is changed, the anatomical dimension of the instep peak angle is taken in, so that the foot can be adjusted. Although it was possible to improve the fit in the static state, the fit to the dynamic shape change of the foot as in sports use was not considered, and the function to assist body movement was not considered. Not provided.
[0004]
Therefore, the present invention provides an athletic shoe that takes into account the dynamic shape change of the foot during exercise, so that the foot has a positional correlation with the sole without losing the fit even during exercise. By maintaining the relationship, the purpose is to reduce the power transmission loss and contribute to improving physical exercise.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is directed to an athletic shoe having a structure in which the fastening direction of the upper is changed for each of the parts of the foot where the movement is different, focusing on the joint axis of the foot and its movement. That is, the present invention is an athletic shoe in which a plurality of shoelaces are arranged at positions where the inner and outer shell sides of the eyelet decoration provided along the front opening of the upper cover face each other. A line connecting the midpoints of the confronting eyelets and the line connecting the midpoints of the front openings along the eyelets is formed so as to bend at two points. The positions where the eyelet axis is bent are set to positions near the metatarsophalangeal joint of the foot and near the tarsal metatarsal joint.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
In the athletic shoe of the present invention, as a method of fitting the athletic shoe to the foot, means for adjusting the degree of tightening by inserting a shoelace through a plurality of eyelets perforated in an eyelet decoration provided in the front opening of the upper. Is used.
[0007]
Looking at the movement of the human foot skeleton during exercise by the human foot skeletal structure shown in FIG. 3, the toe moves upward (dorsiflexion) and the toe moves downward about the talar joint axis. In the facing movement (plantar flexion), the metatarsal head row is inclined outward and rearward with respect to the ankle axis due to the abduction movement that occurs secondary to plantar flexion. In addition, supination movement with the plantar facing inward and pronation with the sole facing outward, centering on the subtalar joint axis running diagonally and posteriorly from the back of the talus neck, the supination movement that occurs during plantar flexion Then, the tarsal bone moves inward and backward with respect to the foot axis. Therefore, by arranging the positions of the eyelet holes provided in the eyelet decoration of the instep at a position orthogonal to the displacement at the time of plantar dorsiflexion of each part of the foot skeleton, it is effective for movement at each part. And the foot can maintain a positional correlation with the sole of the shoe.
[0008]
That is, the direction of the tightening of the instep is in a region closer to the heel side than the vicinity of the metatarsophalangeal joint which is in a range of 65 to 75% of the length of the foot from the heel along the foot axis, when the dorsal plantar flexion occurs. Incline outward and rearward so as to be parallel to the movement of the metatarsal head row that causes the secondary abduction and abduction movements, and a distance of 45-55% of the foot length from the heel along the foot axis In a region closer to the heel side than the vicinity of the metatarsal joint in the range of (2), the inner side is inclined inward and rearward so as to be parallel to the movement of the tarsal bone causing the pronation and supination movement. For this reason, the eyelet hole and the eyelet hole that are pierced facing each other on the outer and inner shell sides of the eyelet decoration provided at the front opening portion of the instep cover , and the opposing opening along the eyelet hole are connected. set the midpoint on the straight line, so as to assume the eyelet axis by connecting the intermediate point and the intermediate point, it is bent at a position near the vicinity and tarsal metatarsal joints of the eyelet axes metatarsophalangeal joint Form eyelets and openings .
[0009]
The intermediate point (start point) closest to the toe and the intermediate point (end point) closest to the mouth of the eyelet axis are generally on the foot axis, and the angle at which the eyelet axis is bent is from the toe to the heel with respect to the foot axis. The horizontal projection angle is in the range of 0 to 30 degrees in the region between the start of the eyelet axis and the vicinity of the metatarsophalangeal joint, and between the vicinity of the metatarsophalangeal joint and the vicinity of the tarsal metatarsal joint. Is set in the range of -10 to -45 degrees, and in the region between the vicinity of the tarsal metatarsal joint and the end point of the eyelet axis line, the range is set to 10 to 35 degrees.
[0010]
The operation and effect of the shoelace fastening structure according to the embodiment of the present invention can be applied to a fastening structure by another method, for example, a fastening structure by a belt structure using a velvet fastener.
[0011]
【Example】
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of an athletic shoe according to an embodiment of the present invention as viewed from above, FIG. 2 is a schematic diagram showing a positional relationship between the upper surface of the athletic shoe and a skeleton structure of a human foot, and FIG. It is a top view which shows the skeleton structure of a human foot. The front opening of the upper 2 of the athletic shoe 1 in which the shoelace is inserted into the eyelet hole formed in the eyelet provided at the front opening of the upper of the athletic shoe to adjust the degree of tightening of the upper. A plurality of eyelets 5 are formed at positions of the eyelet decoration 4 provided along 3 on the outer side and the inner side facing each other.
[0012]
In this embodiment, as shown in FIG. 2, an intermediate point 6 is set on a straight line connecting the opposing outer eyelet 5 and the opening and the inner eyelet 5 and the opening. The eyelet axis 7 is assumed by connecting the intermediate point 6 and the intermediate point 6, and the eyelet axis 7 is bent at two places near the metatarsophalangeal joint 9 and near the tarsal metatarsal joint 10. The eyelet hole 5 is set in.
[0013]
The eyelet hole 5 has an intermediate point (start point) 6a closest to the toe side of the eyelet axis 7 and an intermediate point (end point) 6b closest to the mouthpiece on the foot axis 8 and is positioned from the start point 6a of the eyelet axis. The horizontal projection angle of the eyelet axis 7a up to the vicinity of the toe joint 9 is 30 degrees with respect to the foot axis 8 (α in FIG. 2), and the vicinity of the metatarsophalangeal joint 9 to the vicinity of the tarsal metatarsal joint 10 The horizontal projection angle of the eyelet axis 7b to the foot axis 8 is -30 degrees (β in FIG. 2), and the horizontal projection angle of the eyelet axis 7c from the vicinity of the tarsal metatarsal joint 10 to the end point 6b of the eyelet axis Is set to 15 degrees (γ in FIG. 2).
[0014]
【The invention's effect】
As described above, the present invention is configured as described above, when using such athletic shoes, plantar dorsiflexion during exercise, in the metatarsophalangeal joint causing movement of adduction and abduction, or in the pronation, The shoelace can be tightened in parallel with the movement of the foot at the metatarsal joint causing supination movement, so that the upper can be effectively tightened against the movement of the foot and the shoe against the foot can be tightened. The fit is improved. That is, at the time of a kick-out operation (plantar flexion) during a body acceleration phase or the like during exercise, a deformation direction is generated with respect to the deformation of the foot due to an adduction / inversion / pronation / supination operation that is secondary to the skeleton shape of the foot. By tightening the upper cover almost parallel to the above, it is possible to prevent the foot from slipping in the shoe, reduce the transmission loss of power during exercise (prevent energy loss), and improve physical exercise .
[0015]
Furthermore, since the foot maintains the positional correlation with the sole, the foot can be kept at an appropriate position with respect to the sole design exerting a force on the athletic contact surface. That is, in the shoes having spikes, the feet can be held at appropriate positions with respect to the spikes, and in the shoes having the rubber soles with the design patterns, the effect of the sole design patterns with improved traction can be maintained. Can be withdrawn.
[0016]
In addition to the fastening structure using shoelaces as in the present invention, the present invention can also be applied to a case in which a fastening tool having a belt structure using a velvet fastener is attached.
[Brief description of the drawings]
FIG. 1 is a plan view of an athletic shoe according to an embodiment of the present invention as viewed from above.
FIG. 2 is a schematic diagram showing a positional relationship between the upper surface of the athletic shoe according to the embodiment of the present invention and a skeleton structure of a human foot.
FIG. 3 is a schematic diagram showing a skeleton structure of a human foot.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Athletic shoes 2 Instep 3 Opening 4 Eyelet decoration 5 Eyelet hole 6 Intermediate point 6a Intermediate point (starting point)
6b Intermediate point (end point)
7 Eyelet axis 7a Eyelet axis 7b Eyelet axis 7c Eyelet axis 8 Foot axis 9 Metatarsophalangeal joint 10 Tarsus metatarsal joint

Claims

In athletic shoes in which a plurality of eyelets for inserting shoelaces are arranged at positions where the inner and outer sides of the eyelet provided along the front opening of the upper cover face each other, An intermediate point (start point) closest to the toe and an intermediate point (end point) closest to the toe of the eyelet axis, which is a line connecting the intermediate points and also connecting the intermediate point of the front opening along the eyelet hole. Are substantially on the foot axis, the eyelet axis is bent so as to be located near the metatarsophalangeal joint and near the tarsal metatarsal joint , and the metatarsophalangeal joint from the start point of the eyelet axis The horizontal projection angle of the eyelet axis to the vicinity of the eye is in the range of 0 to 30 degrees outside the ankle heel direction with respect to the foot axis, and the eyelet axis from the vicinity of the metatarsophalangeal joint to the vicinity of the tarsal metatarsal joint Horizontal projection angle of -10 to -45 degrees outward in the ankle heel direction with respect to the foot axis, near the metatarsal ankle joint Athletic shoe horizontal projection angle eyelet axis to the end point of the eyelet axis, characterized in that the in the range of 10 to 35 degrees to the foot axis heel outward relative to the foot axis.