JP2009034438A - Sole - Google Patents

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JP2009034438A
JP2009034438A JP2007203215A JP2007203215A JP2009034438A JP 2009034438 A JP2009034438 A JP 2009034438A JP 2007203215 A JP2007203215 A JP 2007203215A JP 2007203215 A JP2007203215 A JP 2007203215A JP 2009034438 A JP2009034438 A JP 2009034438A
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heel
outer side
base material
harder
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JP4685840B2 (en
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Isao Nakano
勲 中野
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Zett Corp
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Zett Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide soles which can effectively block the generation of sprain during the exercising. <P>SOLUTION: As to an ankle equivalent part R, the outer upper side area R1 is made harder as a whole than the inner upper side area R2. As for the longitudinal intermediate part r out of the ankle equivalent part R covering the center C of the ankle equivalent part R, the inner upper side part r2 contained in the inner upper side area R2 is made harder than the outer upper side part r1 contained in the outer upper side area R1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、靴底に関し、特に、運動時における着用者の足首などに障害が発生するのを抑止する技術に関する。   The present invention relates to a shoe sole, and in particular, to a technique for suppressing the occurrence of an obstacle on a wearer's ankle during exercise.

従来、この種の靴底としては、例えば、踵相当部位に軟質の衝撃緩衝部材が嵌挿されたものがある（例えば、下記特許文献１参照）。つまり、この靴底では、運動時に着用者の身体に伝達される衝撃力を衝撃緩衝部材で低減させることで、足首などに障害が発生するのを抑止する。   Conventionally, as this type of shoe sole, for example, there is one in which a soft shock-absorbing member is fitted into a heel-corresponding portion (for example, see Patent Document 1 below). That is, in this shoe sole, the impact force transmitted to the wearer's body during exercise is reduced by the impact buffer member, thereby preventing the ankle and the like from being damaged.

特開平７−１６１０４号公報Japanese Patent Laid-Open No. 7-16104

ところが、着用者の身体に伝達される衝撃力を低減するだけでは、足首全体について障害の発生をある程度抑止することができるものの、着用者の足裏面での重心移動などの動作に起因する障害としての捻挫、詳しくは、足首を内側に捻って外側の靭帯を傷める内反捻挫や足首を外側に捻って内側の靭帯を傷める外反捻挫については抑止効果が十分とはいえなかった。   However, by reducing the impact force transmitted to the wearer's body, it is possible to suppress the occurrence of damage to the entire ankle to some extent, but as a failure due to movement of the center of gravity on the wearer's sole, etc. Suppression of spinal cords, specifically, varus sprains that injure the outer ligaments by twisting the ankle inward and valgus sprains that injure the inner ligaments by twisting the ankles outward, have not been sufficiently effective.

本発明は、上述の実情に鑑みて為されたものであって、その主たる課題は、運動中における捻挫の発生を効果的に抑止し得る靴底を提供する点にある。   The present invention has been made in view of the above circumstances, and a main problem thereof is to provide a shoe sole that can effectively suppress the occurrence of sprains during exercise.

本発明の第１特徴構成は、靴底に係り、その特徴は、
踵相当部位について外甲側領域が内甲側領域よりも領域全体として硬く構成されているとともに、
前記踵相当部位のうち、踵相当部位の中心を含む前後方向中間部分については、前記内甲側領域に含まれる内甲側部分が前記外甲側領域に含まれる外甲側部分よりも硬く構成されている点にある。 A first characteristic configuration of the present invention relates to a shoe sole,
For the heel equivalent region, the outer side region is configured to be harder as a whole region than the inner side region,
Of the heel-corresponding portion, the front-rear direction intermediate portion including the center of the heel-corresponding portion is configured such that the inner shell side portion included in the inner shell side region is harder than the outer shell side portion included in the outer shell side region. It is in the point.

つまり、横方向での動作（例えば、横方法でのステップなどの動作）では、内反捻挫が起こり易いことが知られており、一方、前後方向での動作（例えば、ランニングやウォーキングなどの動作）では、外反捻挫が起こり易いことが知られている。   In other words, it is known that varus sprains are likely to occur in lateral movements (for example, lateral movement, etc.), while forward / backward movements (for example, running, walking, etc.) ), It is known that hallux valgus tends to occur.

すなわち、上記特徴構成によれば、踵相当部位について外甲側領域が内甲側領域よりも領域全体として硬く構成されているから、横方向での動作では足裏全体で着地する関係上、踵相当部位の全体に同時に加重がかけられることに対し、内甲側領域よりも領域全体として硬く構成された外甲側領域でもって、着用者の踵部分の外甲側の全体を効果的に支持する形態で、着用者が横方向動作中に足首を内側に捻ることを効果的に抑止することができる。   That is, according to the above-described characteristic configuration, the outer side region is configured to be harder as a whole region than the inner side region for the heel equivalent region. Effectively supports the entire outer side of the wearer's heel part with the outer side area, which is configured to be harder as a whole area than the inner side area, against the fact that the entire equivalent part is simultaneously weighted Thus, the wearer can be effectively prevented from twisting the ankle inward during the lateral movement.

さらに、前記踵相当部位のうち、踵相当部位の中心を含む前後方向中間部分については、前記内甲側領域に含まれる内甲側部分が前記外甲側領域に含まれる外甲側部分よりも硬く構成されているから、前後方向での動作では踵からつま先にかけて順次に着地する関係上、最初に踵相当部位の中心近傍位置に局部的に加重がかけられることに対し、外甲側部分よりも硬く構成された内甲側部分でもって、着用者の踵部分の内甲側の中心近傍位置を効果的に支持する形態で、着用者が前後方向動作中に足首を外側に捻ることを効果的に抑止することができる。   Further, among the heel-corresponding parts, for the front-rear direction intermediate part including the center of the heel-corresponding part, the inner shell side part included in the inner shell side area is more than the outer shell side part included in the outer shell side area. Because it is structured hard, the movement in the front-rear direction is landed sequentially from the heel to the toe, so that the weight is first applied locally to the position near the center of the heel equivalent part, from the outer side part It is effective to support the position of the wearer's heel in the vicinity of the center of the inner side of the wearer's heel, with the wearer twisting the ankle outward during forward and backward movement. Can be deterred.

したがって、運動中における内反捻挫及び外反捻挫の双方を効果的且つ効率的に抑止することができる。   Therefore, both varus and valgus sprains during exercise can be effectively and efficiently suppressed.

本発明の第２特徴構成は、第１特徴構成の実施に好適な構成であり、その特徴は、
前記踵相当部位の中央領域には、踵相当部位の基材よりも軟質の衝撃緩衝部材を嵌装する凹部が形成されているとともに、
前記凹部の輪郭形状が、前記踵相当部位について前記外甲側領域を構成する前記基材の体積が前記内甲側領域を構成する基材の体積よりも大きくなり、且つ、前記前後方向中間部分について前記内甲側部分を構成する基材の体積が前記外甲側部分を構成する基材の体積よりも大きくなる形態で構成されている点にある。 The second feature configuration of the present invention is a configuration suitable for the implementation of the first feature configuration.
In the central region of the wrinkle-corresponding portion, a recess for fitting an impact buffer member that is softer than the base material of the wrinkle-corresponding portion is formed,
The volume of the base material constituting the outer side region of the contour portion of the recess is larger than the volume of the base material constituting the inner side region, and the front-rear direction intermediate portion The volume of the base material that constitutes the inner side portion is about a point that is larger than the volume of the base material that constitutes the outer side portion.

上記特徴構成によれば、軟質の衝撃緩衝部材の嵌装で踵相当部位において身体側に伝達される衝撃力を低減することができながら、その軟質の衝撃緩衝部材を嵌装するための凹部の輪郭形状の加工という加工性の高い手法でもって、外甲側領域、内甲側領域、外甲側部位、内甲側部位の体積を調整する形態で、踵相当部位について外甲側領域を内甲側領域よりも領域全体として硬く構成し、且つ、踵相当部位のうち、踵相当部位の中心を含む前後方向中間部分については、内甲側部分を外甲側部分よりも硬く構成することができる。   According to the above characteristic configuration, it is possible to reduce the impact force transmitted to the body side in the heel-corresponding portion by fitting the soft shock absorbing member, and the concave portion for fitting the soft shock absorbing member can be reduced. The shape of the outer side area, the inner side area, the outer side part, and the inner side part is adjusted by a method with high workability, such as processing of the contour shape. The entire area is harder than the instep side area, and, among the heel equivalent parts, the front part in the front-rear direction including the center of the heel equivalent part may be configured to be harder than the outer side part. it can.

したがって、運動中における内反捻挫及び外反捻挫の双方を一層効果的且つ効率的に抑止することができる。   Therefore, both varus and valgus sprains during exercise can be more effectively and efficiently suppressed.

本発明の第３特徴構成は、第２特徴構成の実施に好適な構成であり、その特徴は、
前記凹部の壁部には、前記前後方向中間部の前記外甲側部分を構成する基材の体積を小さくするための凸壁部、又は、前後方向中間部分の前記内甲側部分を構成する基材の体積を大きくするための凹壁部、或いは、それらの両方が形成されている点にある。 The third characteristic configuration of the present invention is a configuration suitable for the implementation of the second characteristic configuration.
The wall portion of the concave portion constitutes the convex wall portion for reducing the volume of the base material constituting the outer side portion of the front-rear direction intermediate portion, or the inner side portion of the front-rear direction intermediate portion. A concave wall portion for increasing the volume of the base material or both of them are formed.

上記特徴構成によれば、前記凹部の壁部に対し前記凸壁部や前記凹壁部を形成するだけの極めて簡単な加工でもって、外甲側領域、内甲側領域、外甲側部位、内甲側部位の体積を調整する形態で、踵相当部位について外甲側領域を内甲側領域よりも領域全体として硬く構成し、且つ、踵相当部位のうち、踵相当部位の中心を含む前後方向中間部分については、内甲側部分を外甲側部分よりも硬く構成することができる。   According to the above-mentioned characteristic configuration, the outer side region, the inner side region, the outer side portion, by an extremely simple process that only forms the convex wall portion and the concave wall portion with respect to the wall portion of the concave portion, Before and after including the center of the heel-corresponding portion of the heel-corresponding portion, the outer-side region of the heel-corresponding portion is configured to be harder as a whole region than the inner-shell-side region. About the direction middle part, an inner side part can be comprised harder than an outer side part.

したがって、運動中における内反捻挫及び外反捻挫の双方をさらに一層効率的に抑止することができる。   Therefore, both varus and valgus sprains during exercise can be more effectively suppressed.

本発明の第４特徴構成は、第２又は第３特徴構成の実施に好適な構成であり、その特徴は、
前記凹部の輪郭形状が、滑らかな曲線から構成されている点にある。 The fourth feature configuration of the present invention is a configuration suitable for implementing the second or third feature configuration.
The contour shape of the concave portion is composed of a smooth curve.

上記特徴構成によれば、前記内甲側領域における前記内甲側部分での硬さの変化や前記外甲側領域における前記外甲側部分での硬さの変化を滑らかで自然なものとすることができて、着用者が運動時に違和感を生じるのを効果的に抑止することができる。   According to the above characteristic configuration, the change in hardness at the inner shell side portion in the inner shell side region and the change in hardness at the outer shell side portion in the outer shell side region are made smooth and natural. It is possible to effectively prevent the wearer from feeling uncomfortable during exercise.

本発明の第５特徴構成は、第２〜第４特徴構成のいずれかの実施に好適な構成であり、その特徴は、
前記凹部の輪郭形状が、凹形状と凸形状が連続する波型形状に構成されている点にある。 The fifth characteristic configuration of the present invention is a configuration suitable for implementing any one of the second to fourth characteristic configurations,
The contour shape of the concave portion is in the form of a wave shape in which the concave shape and the convex shape are continuous.

上記特徴構成によれば、踵相当部位における前記衝撃緩衝部材が嵌装された部分との間での硬さの変化を滑らかで自然なものとすることができて、着用者が運動時に違和感を生じるのを効果的に抑止することができる。   According to the above characteristic configuration, it is possible to make the change in hardness between the portion where the impact buffering member is fitted in the heel equivalent portion smooth and natural, and the wearer feels uncomfortable during exercise. It can be effectively prevented from occurring.

本発明の第６特徴構成は、靴底に係り、その特徴は、
踵相当部位について外甲側領域が内甲側領域よりも全体的に硬く構成されているとともに、
前記踵相当部位のうち、前後方向での一部分については、前記内甲側領域に含まれる内甲側部分が前記外甲側領域に含まれる外甲側部分よりも硬く構成されている点にある。 The sixth characteristic configuration of the present invention relates to a shoe sole,
The outer side area is generally harder than the inner side area for the heel equivalent part,
Among the parts corresponding to the heel, a part in the front-rear direction is that the inner side part included in the inner side region is configured to be harder than the outer side part included in the outer side region. .

つまり、横方向での動作（例えば、横方法でのステップなどの動作）では、内反捻挫が起こり易いことが知られており、一方、前後方向での動作（例えば、ランニングやウォーキングなどの動作）では、外反捻挫が起こり易いことが知られている。   In other words, it is known that varus sprains are likely to occur in lateral movements (for example, lateral movement, etc.), while forward / backward movements (for example, running, walking, etc.) ), It is known that hallux valgus tends to occur.

すなわち、上記特徴構成によれば、踵相当部位について外甲側領域が内甲側領域よりも領域全体として硬く構成されているから、内甲側領域よりも領域全体として硬く構成された外甲側領域でもって、着用者の踵部分の外甲側を効果的に支持する形態で、着用者が横方向動作中に足首を内側に捻ることを効果的に抑止することができる。   That is, according to the above-described characteristic configuration, the outer side region is configured to be harder as a whole region than the inner side region, so that the outer side is configured to be harder as a whole region than the inner side region. In the form of effectively supporting the outer side of the heel portion of the wearer in the region, the wearer can be effectively prevented from twisting the ankle inward during the lateral movement.

さらに、前記踵相当部位のうち、踵相当部位の中心を含む前後方向中間部分については、前記内甲側領域に含まれる内甲側部分が前記外甲側領域に含まれる外甲側部分よりも硬く構成されているから、外甲側部分よりも硬く構成された内甲側部分でもって、着用者の踵部分の内甲側を効果的に支持する形態で、着用者が前後方向動作中に足首を外側に捻ることを効果的に抑止することができる。   Further, among the heel-corresponding parts, for the front-rear direction intermediate part including the center of the heel-corresponding part, the inner shell side part included in the inner shell side area is more than the outer shell side part included in the outer shell side area. Because it is configured to be hard, it is a form that effectively supports the inner side of the heel part of the wearer with the inner side part that is configured to be harder than the outer side part, and the wearer is moving forward and backward It is possible to effectively prevent the ankle from being twisted outward.

したがって、運動中における内反捻挫及び外反捻挫の双方を効果的且つ効率的に抑止することができる。   Therefore, both varus and valgus sprains during exercise can be effectively and efficiently suppressed.

本発明の第７特徴構成は、靴底に係り、その特徴は、
踵相当部位について内甲側領域が外甲側領域よりも全体的に硬く構成されているとともに、
前記踵相当部位のうち、前後方向での一部分については、前記外甲側領域に含まれる外甲側部分が前記内甲側領域に含まれる内甲側部分よりも硬く構成されている点にある。 A seventh characteristic configuration of the present invention relates to a shoe sole,
For the heel equivalent part, the inner side area is generally harder than the outer side area,
Among the parts corresponding to the heel, a part in the front-rear direction is that the outer side part included in the outer side area is configured to be harder than the inner side part included in the inner side area. .

つまり、横方向での動作（例えば、横方法でのステップなどの動作）では、内反捻挫が起こり易いことが知られており、一方、前後方向での動作（例えば、ランニングやウォーキングなどの動作）では、外反捻挫が起こり易いことが知られている。   In other words, it is known that varus sprains are likely to occur in lateral movements (for example, lateral movement, etc.), while forward / backward movements (for example, running, walking, etc.) ), It is known that hallux valgus tends to occur.

すなわち、上記特徴構成によれば、踵相当部位について内甲側領域が外甲側領域よりも領域全体として硬く構成されているから、外甲側領域よりも領域全体として硬く構成された内甲側領域でもって、着用者の踵部分の内甲側を効果的に支持する形態で、着用者が前後方向動作中に足首を外側に捻ることを効果的に抑止することができる。   That is, according to the above-described characteristic configuration, the inner side region is configured to be harder as a whole region than the outer side region, so that the inner side is configured to be harder as a whole region than the outer side region. With the region, it is possible to effectively prevent the wearer from twisting the ankle to the outside during the front-rear direction movement in a form that effectively supports the inner side of the wearer's heel portion.

さらに、前記踵相当部位のうち、前後方向の一部分については、前記外甲側領域に含まれる外甲側部分が前記内甲側領域に含まれる内甲側部分よりも硬く構成されているから、内甲側部分よりも硬く構成された外甲側部分でもって、着用者の踵部分の外甲側を効果的に支持する形態で、着用者が横方向動作中に足首を内側に捻ることを効果的に抑止することができる。   Furthermore, for a part in the front-rear direction of the heel equivalent portion, the outer side portion included in the outer side region is configured to be harder than the inner side portion included in the inner side region, In a form that effectively supports the outer side of the wearer's heel part with the outer side part configured to be harder than the inner side part, the wearer twists the ankle inward during lateral movement It can be effectively deterred.

したがって、運動中における内反捻挫及び外反捻挫の双方を効果的且つ効率的に抑止することができる。   Therefore, both varus and valgus sprains during exercise can be effectively and efficiently suppressed.

図１、図２は、靴の一例である右足用のスパイクシューズを示し、このスパイクシューズの靴底Ｋは、ＴＰＵ製のアウトソール１、ＥＶＡ製のミッドソール２、天然皮革や合成皮革、織布、不織布等で製作された甲皮Ｕの底面形成部位３、織布等で比較的硬質に形成された中底４を、その順に下層側から接着剤や縫製により積層接着するとともに、織布製の柔軟なインナーソール６を中底４の上面に積層非接着の状態で敷設して構成されている。   FIG. 1 and FIG. 2 show a spike shoe for the right foot, which is an example of a shoe. The sole K of the spike shoe has a TPU outsole 1, EVA midsole 2, natural leather, synthetic leather, woven The bottom forming part 3 of the upper U made of cloth, non-woven fabric, etc., and the insole 4 formed relatively hard with woven fabric etc. are laminated and bonded in that order from the lower layer side by adhesive or sewing, and the woven fabric A flexible inner sole 6 made of plastic is laid on the upper surface of the midsole 4 in a non-laminated state.

当該靴底Ｋは、図３に示すように、後述するミッドソール１における硬さの調整によって、踵相当部位Ｒの外甲側領域Ｒ１が内甲側領域Ｒ２よりも領域全体として硬く構成されているとともに、踵相当部位Ｒのうちの踵相当部位Ｒの中心Ｃを含む前後方向中間部分ｒ（踵相当部位Ｒのうちの前後方向での一部分の一例）については、内甲側領域Ｒ２に含まれる内甲側部分ｒ２が外甲側領域Ｒ１に含まれる外甲側部分ｒ１よりも硬く構成されている。   As shown in FIG. 3, the shoe sole K is configured such that the outer side region R1 of the heel equivalent region R is harder as a whole region than the inner side region R2 by adjusting the hardness of the midsole 1 described later. In addition, the front-rear direction intermediate portion r including the center C of the heel equivalent portion R of the heel equivalent portion R (an example of a part of the heel equivalent portion R in the front-rear direction) is included in the inner side region R2. The inner side r2 is configured to be harder than the outer side r1 included in the outer side region R1.

前記アウトソール１の底面には、多数の固定スタッド１ａが一体形成されているとともに、アウトソール１の踵相当部位Ｒの中央部位には、上方側（つまり、ミッドソール２の側）に突出する縁部からなる窓孔を透通性ＴＰＵ材で閉塞して構成された窓部１ｂが形成されている。   A large number of fixing studs 1 a are integrally formed on the bottom surface of the outsole 1, and the center portion of the heel-corresponding portion R of the outsole 1 protrudes upward (that is, the midsole 2 side). A window portion 1b configured by closing a window hole formed of an edge portion with a permeable TPU material is formed.

前記ミッドソール２は、アウトソール１の土踏まず部分から後端にかけての領域に対応する形状で構成されている。当該ミッドソール２の踵相当部位Ｒは、それの中央部位が略同一の厚みで構成されているとともに、それの両側端側及び後端側が上方側にすり鉢状に盛り上がった形態で構成されている。   The midsole 2 has a shape corresponding to a region from the arch portion of the outsole 1 to the rear end. The heel-corresponding portion R of the midsole 2 is configured in such a manner that the central portion thereof is configured with substantially the same thickness, and the both side end sides and the rear end side thereof are raised in a mortar shape on the upper side. .

また、ミッドソール２の両側面部には、ミッドソール２を構成する基材（本例では、ＥＶＡ）よりも硬質のＴＰＵ製の型崩れ防止部材７が貼着されているとともに、ミッドソール２の踵相当部位Ｒの左右方向の中央領域には、ミッドソール２の基材よりも軟質の衝撃緩衝部材５を嵌装するための凹部２Ａが形成されている。   In addition, a TPU-shaped deformation prevention member 7 made of TPU that is harder than the base material (EVA in this example) constituting the midsole 2 is attached to both side portions of the midsole 2, and In the central region in the left-right direction of the heel-corresponding portion R, a recess 2A for fitting an impact buffer member 5 that is softer than the base material of the midsole 2 is formed.

また、前記甲皮Ｕの底面形成部３及び前記中底４のミッドソール２の凹部２Ａに対応する部位には、中底４の上方側から凹部２Ａに対し衝撃緩衝部材５を挿入するための挿入孔３ａ、４ａが形成されている。   In addition, an impact buffer member 5 is inserted into the recess 2A from the upper side of the midsole 4 in the portion corresponding to the bottom surface forming part 3 of the upper U and the recess 2A of the midsole 2 of the midsole 4. Insertion holes 3a and 4a are formed.

そして、前記衝撃緩衝部材５は、前記凹部２Ａの形状に対応する形態（つまり、凹部２Ａの壁部２ａの全面に密着する形態）で構成された嵌装部５ａと、この嵌装部５ａの上端部位において外方向に突出する環状の鍔部５ｂとから構成されている。   The impact buffering member 5 includes a fitting portion 5a configured in a form corresponding to the shape of the concave portion 2A (that is, a form in close contact with the entire surface of the wall portion 2a of the concave portion 2A), and the fitting portion 5a. It is comprised from the cyclic | annular collar part 5b which protrudes in an outward direction in an upper end part.

つまり、当該衝撃緩衝部材５は、図２に示すように、鍔部５ｂが中底４の挿通孔４ａの周縁部に当て付けられた状態で、且つ、嵌装部５ａが甲皮Ｕの底面形成部３及び中底４の挿入孔３ａ、４ａを通じてミッドソール２の凹部２Ａに嵌装された状態で、インナーソール６の下方に配設されている。   That is, as shown in FIG. 2, the shock absorbing member 5 is in a state in which the flange portion 5 b is applied to the peripheral edge portion of the insertion hole 4 a of the insole 4 and the fitting portion 5 a is the bottom surface of the upper U. It is disposed below the inner sole 6 in a state of being fitted into the recess 2A of the midsole 2 through the forming portion 3 and the insertion holes 3a, 4a of the midsole 4.

なお、図１、図３に示すように、踵相当部位Ｒとは、靴底Ｋの後端から足長Ｌの約２７％の長さ範囲に含まれる部位を云い、踵相当部位Ｒの中心Ｃとは、靴底Ｋの縦方向中心線Ｓ上における靴底Ｋの後端から足長Ｌの約１７％の長さだけ前側に移動した部位を云う。   As shown in FIGS. 1 and 3, the heel equivalent region R is a region included in the length range of about 27% of the foot length L from the rear end of the shoe sole K, and is the center of the heel equivalent region R. C refers to a portion that has moved forward from the rear end of the sole K on the longitudinal center line S of the sole K by a length of about 17% of the foot length L.

また、踵相当部位Ｒの外甲側領域Ｒ１は、踵相当部位Ｒについて前記縦方向中心線Ｓに直交する方向で３等分した外甲側の領域部位を云い、踵相当部位Ｒの内甲側領域Ｒ２は、踵相当部位Ｒについて前記縦方向中心線Ｓに直交する方向で３等分した内甲側の領域部位を云う。   Further, the outer side region R1 of the heel equivalent region R refers to the outer side region portion of the heel equivalent region R that is equally divided into three in the direction perpendicular to the longitudinal center line S. The side region R2 refers to a region on the inner shell side obtained by dividing the heel equivalent region R into three equal parts in a direction orthogonal to the longitudinal center line S.

前記ミッドソール２の凹部２Ａの輪郭形状は、図３に示すように、略垂直に形成された壁部２ａから滑らか曲線で凹形状と凸形状とが連続する波型形状の輪郭形状に構成されている。   As shown in FIG. 3, the contour shape of the concave portion 2A of the midsole 2 is constituted by a corrugated contour shape in which a concave shape and a convex shape are continuous with a smooth curve from a wall portion 2a formed substantially vertically. ing.

前記凹部２の壁部２ａには、複数（本例では、４つ）の曲面状の凸壁部２ｂ〜２ｅと、複数（本例では、４つ）の曲面状の凹壁部２ｆ〜２ｉとが形成されており、凸壁部２ｂ〜２ｅと凹壁部２ｆ〜２ｉによるミッドソール２の基材の上面視面積の調整（本例では、外甲側領域Ｒ１と内甲側領域Ｒ２との上面視面積比が約１００対９０となり、且つ、外甲側部位ｒ１と内甲側部位ｒ２との上面視面積の比が約７５対１００となるように調整）で当該基材の体積を調整することにより、踵相当部位Ｒについて外甲側領域Ｒ１を構成する基材の体積が内甲側領域Ｒ２を構成する基材の体積よりも大きく構成され、且つ、前後方向中間部分ｒについて内甲側部分ｒ２を構成する基材の体積が外甲側部分ｒ１を構成する基材の体積よりも大きく構成されている。   The wall 2a of the recess 2 includes a plurality (four in this example) of curved convex walls 2b to 2e and a plurality (four in this example) of curved concave walls 2f to 2i. Adjustment of the top view area of the base material of the midsole 2 by the convex wall portions 2b to 2e and the concave wall portions 2f to 2i (in this example, the outer side region R1 and the inner side region R2 And the volume ratio of the base material is adjusted so that the ratio of the top view area of the outer part r1 and the inner part r2 is about 75: 100). By adjusting, the volume of the base material that constitutes the outer side region R1 in the heel equivalent region R is configured to be larger than the volume of the base material that constitutes the inner side region R2, and the inner portion r in the front-rear direction intermediate portion r The volume of the base material constituting the upper side portion r2 is configured to be larger than the volume of the base material constituting the outer side portion r1. There.

踵相当部位Ｒの前後方向中間部分ｒについて詳しく説明すると、凸壁部２ｃにより外甲側部分ｒ１を構成する基材の上面視面積を小さくすることにより当該基材の体積を小さくするとともに、凹壁部２ｉにより内甲側部分Ｒ２を構成する基材の上面視面積を小さくすることにより当該基材の体積（本例では、上面視面積）を大きくしてあり、これにより、前後方向中間部分ｒについて内甲側部分ｒ２を構成する基材の体積が外甲側部分ｒ１を構成する基材の体積よりも大きく構成されている。   The front-rear direction intermediate portion r of the heel equivalent portion R will be described in detail. By reducing the top surface area of the base material that forms the outer side portion r1 by the convex wall portion 2c, the volume of the base material is reduced, and the concave portion The volume of the base material (in this example, the top view area) is increased by reducing the top surface area of the base material that forms the inner side portion R2 by the wall 2i. The volume of the base material constituting the inner side portion r2 with respect to r is configured to be larger than the volume of the base material constituting the outer side portion r1.

つまり、当該スパイクシューズは、靴底Ｋにおける踵相当部位Ｒについて外甲側領域Ｒ１が内甲側領域Ｒ２よりも領域全体として硬く構成されているから、横方向での動作では足裏全体で着地する関係上、踵相当部位Ｒの全体に同時に加重がかけられることに対し、内甲側領域Ｒ２よりも領域全体として硬く構成された外甲側領域Ｒ１でもって、着用者の踵部分の外甲側を効果的に支持する形態で、着用者が横方向動作中に足首を内側に捻ることを効果的に抑止することができる。   That is, in the spike shoes, the outer side region R1 is configured to be harder as the entire region than the inner side region R2 with respect to the heel equivalent region R in the shoe sole K. For this reason, the entire heel equivalent region R is simultaneously weighted, whereas the outer side region R1 configured to be harder as a whole region than the inner side region R2, the outer surface of the wearer's heel portion It is possible to effectively prevent the wearer from twisting the ankle inward during the lateral movement in the form of effectively supporting the side.

さらに、踵相当部位Ｒのうち、踵相当部位Ｒの中心Ｃを含む前後方向中間部分ｒについて、内甲側領域Ｒ２に含まれる内甲側部分ｒ２が外甲側領域Ｒ１に含まれる外甲側部分ｒ１よりも硬く構成されているから、前後方向での動作では踵からつま先にかけて順次に着地する関係上、最初に踵相当部の中心近傍に局部的且つ瞬間的に加重がかけられることに対し、外甲側部分ｒ１よりも硬く構成された内甲側部分ｒ２でもって、着用者の踵部分の中心近傍の内甲側を効果的に支持する形態で、着用者が前後方向動作中に足首を外側に捻ることを効果的に抑止することができ、また、オーバープロネーション（過回内）なども効果的に抑止することができる。   Further, among the heel-corresponding portion R, for the middle part r in the front-rear direction including the center C of the heel-corresponding portion R, the inner side r2 included in the inner side region R2 is the outer side where the outer side region R1 is included. Since it is configured to be harder than the portion r1, in the operation in the front-rear direction, the load is applied locally and instantaneously in the vicinity of the center of the portion corresponding to the heel first because of landing sequentially from the heel to the toe. In the form that effectively supports the inner side near the center of the heel part of the wearer with the inner side part r2 that is configured to be harder than the outer side part r1, Can be effectively prevented from twisting to the outside, and overpronation (overtime) can also be effectively inhibited.

なお、前記凹部２Ａの底面部２ｊには、前述したアウトソール１の窓部１ｂが下方から嵌り込む嵌合孔２ｋが貫通形成されている。そのため、アウトソール１とミッドソール２との接着前の相対移動を抑止することができるとともに、窓部１Ｂを通して靴底Ｋの下方から衝撃緩衝部材５の有無などの目視確認を行うことができる。   A fitting hole 2k through which the window 1b of the outsole 1 is fitted from below is formed through the bottom surface 2j of the recess 2A. Therefore, the relative movement before adhesion between the outsole 1 and the midsole 2 can be suppressed, and the presence / absence of the shock absorbing member 5 can be visually confirmed from below the shoe sole K through the window portion 1B.

［その他の実施形態］
（１）前述の実施形態では、踵相当部位Ｒのうち、前後方向での一部分として、踵相当部位Ｒの中心Ｃを含む前後方向中間部分ｒについて内甲側部分ｒ２が外甲側部分ｒ１よりも硬く構成されている場合を例に示したが、例えば、踵相当部位Ｒの中心Ｃを含まない一部分（例えば、前述の前後方向中間部分の前方側や後方側の部分）について、内甲側部分ｒ２が外甲側部分ｒ１よりも硬く構成されていてもよい。 [Other Embodiments]
(1) In the above-described embodiment, as the part in the front-rear direction of the heel equivalent part R, the inner side part r2 of the front-rear direction intermediate part r including the center C of the heel equivalent part R is greater than the outer side part r1. However, for example, a portion not including the center C of the heel equivalent region R (for example, the front side or the rear side portion of the intermediate portion in the front-rear direction described above) The portion r2 may be configured to be harder than the outer side portion r1.

（２）前述の実施形態では、踵相当部位Ｒについて外甲側領域Ｒ１が内甲側領域Ｒ２よりも領域全体として硬く構成されているとともに、踵相当部位Ｒのうち、前後方向での一部分について、内甲側領域Ｒ２に含まれる内甲側部分ｒ２が外甲側領域Ｒ１に含まれる外甲側部分ｒ１よりも硬く構成されている場合を例に示したが、これとは逆に、踵相当部位Ｒについて内甲側領域Ｒ２が外甲側領域Ｒ１よりも領域全体として硬く構成されているとともに、踵相当部位Ｒのうち、前後方向での一部分について、外甲側領域Ｒ１に含まれる外甲側部分ｒ１が内甲側領域Ｒ２に含まれる内甲側部分ｒ２よりも硬く構成されていてもよい。 (2) In the above-described embodiment, the outer side region R1 of the heel equivalent region R is configured to be harder as a whole region than the inner side region R2, and a part of the heel equivalent region R in the front-rear direction is also configured. The case where the inner shell side portion r2 included in the inner shell side region R2 is configured to be harder than the outer shell side portion r1 included in the outer shell side region R1 is shown as an example. The inner side region R2 is configured to be harder as a whole region than the outer side region R1 with respect to the equivalent region R, and a part of the heel equivalent region R in the front-rear direction is included in the outer side region R1. The upper side part r1 may be configured to be harder than the inner side part r2 included in the inner side area R2.

この場合、外甲側領域Ｒ１よりも領域全体として硬く構成された内甲側領域Ｒ２でもって、着用者が横方向動作中に足首を外側に捻ることを効果的に抑止するとともに、内甲側部分ｒ２よりも硬く構成された外甲側部分ｒ１でもって、着用者が前後方向動作中に足首を内側に捻ることを効果的に抑止することができ、また、オーバーサビネーション（過回外）なども効果的に抑止することができる。   In this case, the inner side region R2 which is configured to be harder as a whole region than the outer side region R1, effectively prevents the wearer from twisting the ankle outward during the lateral movement, and the inner side The outer side portion r1, which is configured to be harder than the portion r2, can effectively prevent the wearer from twisting the ankle inward during forward / backward movement, and over-sabi Can also be effectively suppressed.

（３）前述の実施形態では、外甲側領域Ｒ１、内甲側領域Ｒ２、外甲側部位ｒ１、内甲側部位ｒ２の基材の体積を調整することで、外甲側領域Ｒ１、内甲側領域Ｒ２、外甲側部位ｒ１、内甲側部位ｒ２の硬さを調整する場合を例に示したが、例えば、外甲側領域Ｒ１、内甲側領域Ｒ２、外甲側部位ｒ１、内甲側部位ｒ２の基材の素材や厚みを調整することで、外甲側領域Ｒ１、内甲側領域Ｒ２、外甲側部位ｒ１、内甲側部位ｒ２の硬さを調整してもよい。 (3) In the above-described embodiment, by adjusting the volume of the base material of the outer side region R1, the inner side region R2, the outer side portion r1, the inner side portion r2, The case where the hardness of the upper side region R2, the outer side portion r1, and the inner side portion r2 is shown as an example. For example, the outer side region R1, the inner side region R2, the outer side portion r1, You may adjust the hardness of outer shell side field R1, inner shell side field R2, outer shell side field r1, and inner shell side field r2 by adjusting the material and thickness of the base material of inner shell side field r2. .

（４）前述の実施形態では、凹部２Ａの壁部２ａに、外甲側部分ｒ１を構成する基材の体積を小さくするための凸壁部２ｃと、内甲側部分ｒ２を構成する基材の体積を大きくするための凹壁部２ｉの両方を形成することで、内甲側部分ｒ２を構成する基材の体積が外甲側部分ｒ１を構成する基材の体積よりも大きく構成されている場合を例に示したが、凸壁部２ｃと凹壁部２ｉの一方のみを形成することで、内甲側部分ｒ２を構成する基材の体積が外甲側部分ｒ１を構成する基材の体積よりも大きく構成されていてもよい。 (4) In the above-described embodiment, the convex wall portion 2c for reducing the volume of the base material constituting the outer side portion r1 and the base material constituting the inner side portion r2 on the wall portion 2a of the concave portion 2A. By forming both the concave wall portions 2i for increasing the volume of the base material, the volume of the base material constituting the inner side portion r2 is configured to be larger than the volume of the base material constituting the outer side portion r1. Although the case where it has shown in the example, the base material which the volume of the base material which comprises the inner side part r2 comprises the outer side part r1 by forming only one of the convex wall part 2c and the concave wall part 2i is shown. It may be configured to be larger than the volume.

（５）前述の実施形態では、靴底Ｋが複層構造である場合を例に示したが、単層構造などであってもよい。 (5) In the above-described embodiment, the case where the shoe sole K has a multilayer structure is shown as an example, but a single-layer structure or the like may be used.

（６）靴底Ｋの具体的構成（例えば、構成材の素材種や形状など）については、前述の実施形態で示した如き構成に限らず、種々の構成変更が可能である。 (6) The specific configuration of the sole K (for example, the material type and shape of the constituent material) is not limited to the configuration shown in the above-described embodiment, and various configuration changes can be made.

（７）本発明は、前述の実施形態で示したスパイクシューズに限らず、ランニングシューズやトレッキングシューズ、革靴などの種々の靴に採用することができる。 (7) The present invention can be applied to various shoes such as running shoes, trekking shoes, and leather shoes, as well as the spike shoes shown in the above-described embodiment.

スパイクシューズの分解図Exploded view of spiked shoes 図１のＡ−Ａ線断面図AA line sectional view of FIG. ミッドソールの上面図Midsole top view

符号の説明Explanation of symbols

Ｒ 踵相当部位
Ｒ１ 外甲側領域
Ｒ２ 内甲側領域
Ｃ 踵相当部位の中心
ｒ 前後方向中間部分
ｒ１ 外甲側部分
ｒ２ 内甲側部分
２Ａ 凹部
２ｃ 凸壁部
２ｉ 凹壁部 R Coral equivalent region R1 Outer side region R2 Inner side region C Center r of corresponding part r Front / rear direction intermediate portion r1 Outer side portion r2 Inner side portion 2A Concave part 2c Convex wall part 2i Concave wall part

Claims (7)

踵相当部位について外甲側領域が内甲側領域よりも領域全体として硬く構成されているとともに、
前記踵相当部位のうち、踵相当部位の中心を含む前後方向中間部分については、前記内甲側領域に含まれる内甲側部分が前記外甲側領域に含まれる外甲側部分よりも硬く構成されている靴底。 For the heel equivalent region, the outer side region is configured to be harder as a whole region than the inner side region,
Of the heel-corresponding portion, the front-rear direction intermediate portion including the center of the heel-corresponding portion is configured such that the inner shell side portion included in the inner shell side region is harder than the outer shell side portion included in the outer shell side region. The soles that are. 前記踵相当部位の中央領域には、踵相当部位の基材よりも軟質の衝撃緩衝部材を嵌装する凹部が形成されているとともに、
前記凹部の輪郭形状が、前記踵相当部位について前記外甲側領域を構成する前記基材の体積が前記内甲側領域を構成する基材の体積よりも大きくなり、且つ、前記前後方向中間部分について前記内甲側部分を構成する基材の体積が前記外甲側部分を構成する基材の体積よりも大きくなる形態で構成されている請求項１記載の靴底。 In the central region of the wrinkle-corresponding portion, a recess for fitting an impact buffer member that is softer than the base material of the wrinkle-corresponding portion is formed,
The volume of the base material constituting the outer side region of the contour portion of the recess is larger than the volume of the base material constituting the inner side region, and the front-rear direction intermediate portion The shoe sole according to claim 1, wherein a volume of a base material constituting the inner upper side portion is configured to be larger than a volume of a base material constituting the outer upper side portion. 前記凹部の壁部には、前記前後方向中間部の前記外甲側部分を構成する基材の体積を小さくするための凸壁部、又は、前後方向中間部分の前記内甲側部分を構成する基材の体積を大きくするための凹壁部、或いは、それらの両方が形成されている請求項２記載の靴底。   The wall portion of the concave portion constitutes a convex wall portion for reducing the volume of the base material constituting the outer side portion of the front-rear direction intermediate portion, or the inner side portion of the front-rear direction intermediate portion. The shoe sole according to claim 2, wherein a concave wall portion for increasing the volume of the base material or both of them are formed. 前記凹部の輪郭形状が、滑らかな曲線から構成されている請求項２又は３記載の靴底。   The shoe sole according to claim 2 or 3, wherein the contour shape of the concave portion is constituted by a smooth curve. 前記凹部の輪郭形状が、凹形状と凸形状が連続する波型形状に構成されている請求項２〜４のいずれか１項に記載の靴底。   The shoe sole according to any one of claims 2 to 4, wherein a contour shape of the concave portion is formed into a wave shape in which the concave shape and the convex shape are continuous. 踵相当部位について外甲側領域が内甲側領域よりも全体的に硬く構成されているとともに、
前記踵相当部位のうち、前後方向での一部分については、前記内甲側領域に含まれる内甲側部分が前記外甲側領域に含まれる外甲側部分よりも硬く構成されている靴底。 The outer side area is generally harder than the inner side area for the heel equivalent part,
A part of the heel equivalent part in the front-rear direction is a shoe sole in which the inner side part included in the inner side region is configured to be harder than the outer side part included in the outer side region. 踵相当部位について内甲側領域が外甲側領域よりも全体的に硬く構成されているとともに、
前記踵相当部位のうち、前後方向での一部分については、前記外甲側領域に含まれる外甲側部分が前記内甲側領域に含まれる内甲側部分よりも硬く構成されている靴底。 For the heel equivalent part, the inner side area is generally harder than the outer side area,
The shoe sole in which, for a part in the front-rear direction of the heel-corresponding portion, the outer side portion included in the outer side region is configured to be harder than the inner side portion included in the inner side region.
JP2007203215A 2007-08-03 2007-08-03 Shoe sole Expired - Fee Related JP4685840B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016136381A1 (en) * 2015-02-27 2016-09-01 美津濃株式会社 Midsole structure for shoes

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0586204U (en) * 1991-08-07 1993-11-22 株式会社アシックス Athletic sole
JP2003009903A (en) * 2001-06-28 2003-01-14 Mizuno Corp Midsole structure for sport shoes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0586204U (en) * 1991-08-07 1993-11-22 株式会社アシックス Athletic sole
JP2003009903A (en) * 2001-06-28 2003-01-14 Mizuno Corp Midsole structure for sport shoes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016136381A1 (en) * 2015-02-27 2016-09-01 美津濃株式会社 Midsole structure for shoes
JPWO2016136381A1 (en) * 2015-02-27 2017-11-02 美津濃株式会社 Shoe midsole structure
US10743612B2 (en) 2015-02-27 2020-08-18 Mizuno Corporation Midsole structure for a shoe

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