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JP6868513B2 - Sole and shoes with the sole - Google Patents
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JP6868513B2 - Sole and shoes with the sole - Google Patents

Sole and shoes with the sole Download PDF

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JP6868513B2
JP6868513B2 JP2017170363A JP2017170363A JP6868513B2 JP 6868513 B2 JP6868513 B2 JP 6868513B2 JP 2017170363 A JP2017170363 A JP 2017170363A JP 2017170363 A JP2017170363 A JP 2017170363A JP 6868513 B2 JP6868513 B2 JP 6868513B2
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sole
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hind foot
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JP2019042279A (en
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松尾 大
大 松尾
道生 川口
道生 川口
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アシックス商事株式会社
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Description

本発明は、O脚による膝への負担を抑えるための靴底、及び該靴底を備える靴に関する。 The present invention relates to a sole for suppressing the burden on the knee by the O-leg, and a shoe provided with the sole.

従来から、着用者の下腿を外側(横幅方向における外側)に傾き難くすることにより、O脚による膝への負担を抑えるように構成された靴が提供されている。 Conventionally, shoes have been provided which are configured to suppress the burden on the knee by the O-leg by making it difficult for the wearer's lower leg to tilt outward (outside in the lateral width direction).

かかる靴は、例えば特許文献1の図2、図3に開示されているように、内側(横幅方向における内側)から外側になるにつれて徐々に厚みが増すように形成された踵部サポートが靴底の後足部に形成されている。 As disclosed in FIGS. 2 and 3 of Patent Document 1, for example, the sole of such a shoe has a heel support formed so as to gradually increase in thickness from the inside (inside in the width direction) to the outside. It is formed on the hind legs.

前記靴によれば、踵部サポートの上面が内側から外側になるにつれて徐々に上方に向かうように傾斜しているため、歩行時に足にかかる荷重が内側に案内される結果、下腿が外側に傾き難くなる。従って、膝の位置が外側に移り難くなり、O脚による膝への負担が抑えられる。 According to the shoe, since the upper surface of the heel support is gradually inclined upward from the inside to the outside, the load applied to the foot during walking is guided inward, and as a result, the lower leg is inclined outward. It becomes difficult. Therefore, the position of the knee is difficult to move to the outside, and the burden on the knee due to the O-leg is suppressed.

特開2001−204503号公報Japanese Unexamined Patent Publication No. 2001-204503

ところで、上記従来の靴においては、靴底が踵部サポートの上面を傾斜させた構造となっているため、歩行時だけでなく立位時においても常に着用者の足にかかる荷重が内側に案内されている状態が続くため、着用者に違和感を与えてしまうことが問題となっている。 By the way, in the above-mentioned conventional shoes, since the sole has a structure in which the upper surface of the heel support is inclined, the load applied to the wearer's foot is always guided inward not only when walking but also when standing. Since the state of being worn continues, it is a problem that the wearer feels uncomfortable.

そこで、本発明は、斯かる実情に鑑み、立位時には着用者に違和感を与えず、歩行時にはO脚による膝への負担を抑えることができる靴底、及び該靴底を備える靴を提供することを課題とする。 Therefore, in view of such circumstances, the present invention provides a shoe sole that does not give the wearer a sense of discomfort when standing and can suppress the burden on the knee due to the O-leg when walking, and a shoe provided with the sole. That is the issue.

本発明の靴底は、
接地面側であり且つ横幅方向における内側の少なくとも後足部に対応する位置に設けられる変形部であって、靴底の厚み方向で弾性圧縮可能な変形部を備え、
該変形部は、後足部の後端部に設けられた易変形部と、
該易変形部に対して前方側で隣り合う位置に設けられた難変形部とを有し、
前記難変形部は、前記厚み方向における圧縮変形に対する剛性が前記易変形部よりも高い。
The sole of the present invention
A deformed portion provided on the ground contact surface side and at a position corresponding to at least the hind foot portion on the inner side in the width direction, and provided with a deformed portion that can be elastically compressed in the thickness direction of the sole.
The deformed portion includes an easily deformed portion provided at the rear end portion of the hind foot portion and an easily deformed portion.
It has a hard-to-deform part provided at a position adjacent to the easy-to-deform part on the front side, and has a hard-to-deform part.
The hard-to-deform portion has a higher rigidity against compressive deformation in the thickness direction than the easy-deformable portion.

上記構成の靴底によれば、難変形部の前記厚み方向における圧縮に対する剛性が前記易変形部よりも高くなっているため、足の裏全体で靴底が踏まれている状態、すなわち、立位状態の人の足を支えている状態においては難変形部が圧縮変形し難く、靴底全体内側にも外側にも傾き難くなっている。そのため、前記靴底は、立位状態の人の足を自然な状態で支えることができる。 According to the sole of the above configuration, the rigidity of the difficult-to-deform portion against compression in the thickness direction is higher than that of the easily deformable portion, so that the sole is stepped on by the entire sole of the foot, that is, standing. When the foot of a person in a position is supported, the difficult-to-deform part is hard to be compressed and deformed, and it is hard to tilt to the inside or the outside of the entire sole. Therefore, the sole can naturally support the foot of a person in a standing position.

一方、歩行動作中の人が踵で着地した際においては、変形部のうちの易変形部のみが踏みつけられて圧縮変形するため、靴底の後足部側が内側に沈み込む(傾く)。これに伴い、踵にかかる荷重が内側に案内される。 On the other hand, when a person who is walking is landing on the heel, only the easily deformed part of the deformed part is trampled and compressed and deformed, so that the hindfoot side of the sole sinks (tilts) inward. Along with this, the load applied to the heel is guided inward.

そして、踵で着地した後、後足部及び中足部が接地した状態に移る際に、前記荷重が内側に案内され易くなっており、難変形部が踏み込まれると、易変形部に加えて難変形部も圧縮変形する。 Then, after landing on the heel, when the hind foot and the midfoot move to the grounded state, the load is easily guided inward, and when the difficult-to-deform part is stepped on, in addition to the easily-deformable part, The difficult-to-deform part is also compressed and deformed.

下腿は、踵で着地した状態から後足部及び中足部が接地した状態に移る際に外側に傾こうとする動きが大きくなるが、前記靴底では、足にかかる荷重が内側に案内され易くなっているため、下腿の外側への傾き、すなわち、膝の外側への移動が抑えられ、これにより、O脚による膝への負担を抑えることができる。 When the lower leg moves from the state where it lands on the heel to the state where the hind foot and the midfoot are in contact with the ground, the movement toward the outside increases, but in the sole, the load applied to the foot is guided inward. Since it is easy, the inclination of the lower leg to the outside, that is, the movement of the knee to the outside is suppressed, and thus the burden on the knee by the O-leg can be suppressed.

本発明の靴底において、
前記易変形部は、後方側になるにつれて上方に向かうように湾曲していてもよい。
In the sole of the present invention
The easily deformable portion may be curved so as to move upward toward the rear side.

このようにすれば、歩行動作中の人の踵が着地した際に前記易変形部と接地面との接地面積が増えるため、靴底の後足部側が内側に沈み込み易くなる。 In this way, when the heel of a person who is walking is landed, the contact area between the easily deformed portion and the contact patch increases, so that the hindfoot side of the sole easily sinks inward.

本発明の靴底は、
前記変形部に対して外側で横並びに配置された後足支持部を備え、
該後足支持部の前記厚み方向における圧縮に対する剛性は、前記難変形部よりも高くなっていてもよい。
The sole of the present invention
A hind foot support portion arranged side by side with respect to the deformed portion is provided.
The rigidity of the hind foot support portion with respect to compression in the thickness direction may be higher than that of the difficult-to-deform portion.

上記構成の靴底によれば、変形部よりも、該変形部の外側に配置される後足支持部の方が圧縮変形し難くなるため、踵にかかる荷重が内側に案内され易くなり、下腿が外側に傾き難くなる。 According to the sole of the above configuration, the hind foot support portion arranged on the outside of the deformed portion is less likely to be compressed and deformed than the deformed portion, so that the load applied to the heel is easily guided inward, and the lower leg. Is less likely to tilt outward.

本発明の靴底において、
前記後足支持部の下面には、
アウトソールが取り付けられる接地側領域と、
該接地側領域よりも内側に位置し且つ該接地側領域を基準として上方に延びるように形成された逃領域とが含まれていてもよい。
In the sole of the present invention
On the lower surface of the hind foot support portion,
The ground side area where the outsole is attached and
An escape region that is located inside the ground side region and is formed so as to extend upward with respect to the ground side region may be included.

上記構成の靴底によれば、接地側領域よりも内側に位置する逃領域が接地面から離れるように形成されているため、靴底の後足部の内側に位置する変形部が沈み込んだときに、該後足支持部が接地面に干渉してしまうことを防止できる。 According to the shoe sole having the above configuration, since the escape region located inside the ground contact side region is formed so as to be separated from the ground contact surface, the deformed portion located inside the hind foot portion of the sole is sunk. Occasionally, it is possible to prevent the hind foot support portion from interfering with the ground contact surface.

従って、変形部の圧縮変形が後足支持部によって妨げられないようにすることができる。 Therefore, it is possible to prevent the compressive deformation of the deformed portion from being hindered by the hind foot support portion.

本発明の靴底において、
前記変形部の先端は、
靴底の前足部と中足部の境目に対応する位置又は該境目よりも後方側に位置するように構成されていてもよい。
In the sole of the present invention
The tip of the deformed part is
It may be configured to be located at a position corresponding to the boundary between the forefoot and the midfoot of the sole, or located on the rear side of the boundary.

このようにすれば、歩行動作中の人の荷重が靴底の後足部から中足部にかけてかかっていた状態から該荷重が前足部側にかかっている状態に切り替わるに伴い、着用者の荷重が足の横幅方向における中央部に移り戻り易くなる。従って、着用者が靴底の前足部全体で接地面を蹴り出し易くなるため、スムーズな歩行動作をとれるようになる。 In this way, as the load of the person during the walking motion is switched from the state in which the load is applied from the hind foot to the midfoot of the sole to the state in which the load is applied to the forefoot side, the load of the wearer is applied. Is easy to move back to the central part in the width direction of the foot. Therefore, it becomes easy for the wearer to kick out the ground contact surface with the entire forefoot portion of the sole, so that a smooth walking motion can be taken.

本発明の靴は、
着用者が足を入れる着用部と、
該着用部の下側に設けられた上記何れかの靴底とを備える。
The shoes of the present invention
The wearing part where the wearer puts his foot and
It is provided with any of the above-mentioned soles provided under the wearing portion.

かかる構成によれば、立位状態の人の足を自然な状態で支えることができるとともに、歩行時においては、下腿が外側に傾き難くなるため、O脚による膝への負担を抑えることができる。 According to this configuration, the legs of a standing person can be supported in a natural state, and the lower legs are less likely to tilt outward when walking, so that the burden on the knees due to the O-legs can be suppressed. ..

以上のように、本発明の靴底及び該靴底を備えた靴によれば、立位時には着用者に違和感を与えず、歩行時にはO脚による膝への負担を抑えることができるという優れた効果を奏し得る。 As described above, the sole of the present invention and the shoe provided with the sole are excellent in that the wearer does not feel uncomfortable when standing and the burden on the knee due to the O-leg can be suppressed when walking. Can be effective.

図1は、本発明の一実施形態に係る靴の内側面図である。FIG. 1 is an inner side view of a shoe according to an embodiment of the present invention. 図2は、同実施形態に係る靴の背面図である。FIG. 2 is a rear view of the shoe according to the embodiment. 図3は、同実施形態に係る靴底の底面図である。FIG. 3 is a bottom view of the sole of the shoe according to the embodiment. 図4は、同実施形態に係る靴底のうちのベース部の底面図である。FIG. 4 is a bottom view of the base portion of the sole according to the embodiment. 図5は、同実施形態に係る変形部の内側面図である。FIG. 5 is an inner side view of the deformed portion according to the embodiment. 図6は、図3のVI−VI断面線における断面図である。FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 図7は、同実施形態に係る靴底と足の位置関係の説明図である。FIG. 7 is an explanatory diagram of the positional relationship between the sole and the foot according to the embodiment. 図8において、(a)は着用者が立位状態のときの靴の背面図であり、(b)は着用者が立位状態のときの靴の内側面図である。In FIG. 8, (a) is a rear view of the shoe when the wearer is in a standing position, and (b) is an inner side view of the shoe when the wearer is in a standing position. 図9は、歩行時における着用者の荷重の推移を説明するための図である。FIG. 9 is a diagram for explaining the transition of the load of the wearer during walking. 図10において、(a)は着用者が歩行時に踵で着地したときの靴の背面図であり、(b)は着用者が歩行時に踵で着地したときの内側面図である。In FIG. 10, (a) is a rear view of the shoe when the wearer lands on the heel while walking, and (b) is an inner side view when the wearer lands on the heel while walking. 図11において、(a)は着用者の踵とつま先とが歩行時に接地したときの靴の背面図であり、(b)は着用者の踵とつま先とが歩行時に接地したときの内側面図である。In FIG. 11, (a) is a rear view of the shoe when the wearer's heel and toe touch the ground while walking, and (b) is an inner side view when the wearer's heel and toe touch the ground while walking. Is.

以下、本発明の一実施形態にかかる靴底について説明する。本実施形態に係る靴底は、着用者の下腿を内側(足の横幅方向における内側)に傾けて膝を内側に寄せることでO脚による膝への負担を抑えるように構成されたものである。なお、本実施形態において足とは、下肢のうち足首から下方側の部分のことである。 Hereinafter, the sole according to the embodiment of the present invention will be described. The sole according to the present embodiment is configured to suppress the burden on the knee by the O-leg by tilting the wearer's lower leg inward (inside in the lateral width direction of the foot) and moving the knee inward. .. In the present embodiment, the foot is a portion of the lower limbs on the lower side from the ankle.

そして、本実施形態では、図1に示すように、着用者が足を入れる着用部2と、該着用部2に設けられた靴底3とを備える靴1を一例に挙げて靴底3の説明を行うこととする。 Then, in the present embodiment, as shown in FIG. 1, a shoe 1 having a wearing portion 2 into which the wearer puts his / her foot and a sole 3 provided in the wearing portion 2 is taken as an example of the shoe sole 3. I will explain it.

着用部2は、着用者の足の側面及び上面を覆うように形成されており、また、着用者が足を出し入れするための出入口が形成されている。 The wearing portion 2 is formed so as to cover the side surface and the upper surface of the wearer's foot, and an entrance / exit for the wearer to put in and take out the foot is formed.

靴底3は、足の外形に合わせて形成されたベース部4と、前記横幅方向における内側の少なくとも後足部に対応する位置に設けられる変形部5であって、靴底3の厚み方向で弾性圧縮可能な変形部5とを有する。なお、ベース部4と変形部5は、靴底3のうちの、いわゆるミッドソールに該当する部分でもある。 The sole 3 is a base portion 4 formed according to the outer shape of the foot and a deformed portion 5 provided at a position corresponding to at least the hind foot portion on the inner side in the lateral width direction, and is provided in the thickness direction of the sole 3. It has a deformable portion 5 that can be elastically compressed. The base portion 4 and the deformed portion 5 are also portions of the sole 3 corresponding to the so-called midsole.

ベース部4には、靴1の着用者の踵が配置される部分である後足部E1、着用者のつま先が配置される前足部E2、後足部E1と前足部E2の間の部分、すなわち、着用者の土踏まずが配置される部分である中足部E3が含まれている(図7参照)。変形部5は、この後足部E1の前記横幅方向における内側に配置された状態でベース部4の下面側(接地面側)に取り付けられている。 The base portion 4 includes a hindfoot portion E1 on which the heel of the wearer of the shoe 1 is arranged, a forefoot portion E2 on which the toe of the wearer is arranged, and a portion between the hindfoot portion E1 and the forefoot portion E2. That is, the midfoot portion E3, which is the portion where the wearer's arch is arranged, is included (see FIG. 7). The deformed portion 5 is attached to the lower surface side (ground contact surface side) of the base portion 4 in a state of being arranged inside the hind foot portion E1 in the lateral width direction.

また、本実施形態では、着用者のつま先と踵とが並ぶ方向を前後方向、着用者の足の横幅に対応する方向を横幅方向、そして、前記前後方向と前記横幅方向とに直交する方向を厚み方向と称して以下の説明を行うこととする。なお、本実施形態では、前記厚み方向が上下方向と同方向であることを前提に以下の説明を行うこととする。また、本実施形態では、前記横幅方向における内側を単に内側と称し、前記横幅方向における外側を単に外側と称して以下の説明を行うこととする。 Further, in the present embodiment, the direction in which the wearer's toes and heels are lined up is the front-back direction, the direction corresponding to the width of the wearer's foot is the width direction, and the direction orthogonal to the front-back direction and the width direction is defined. The following description will be given in the name of the thickness direction. In this embodiment, the following description will be given on the assumption that the thickness direction is the same as the vertical direction. Further, in the present embodiment, the inside in the width direction is simply referred to as the inside, and the outside in the width direction is simply referred to as the outside, and the following description will be given.

本実施形態に係るベース部4は、図4、及び図7に示すように、変形部5を取り付けるための取付部40と、該取付部40の前方及び外側に広がる支持部41とを有する。 As shown in FIGS. 4 and 7, the base portion 4 according to the present embodiment has a mounting portion 40 for mounting the deformed portion 5, and a supporting portion 41 extending forward and outward of the mounting portion 40.

取付部40は、内側の後足部E1から中足部E3に至る領域に形成されている。 The attachment portion 40 is formed in a region extending from the inner hind foot portion E1 to the midfoot portion E3.

支持部41は、地面等の接地面に接触するアウトソールOが取り付けられる部分でもある。そして、支持部41には、後足部E1に形成されている後足支持部410と、中足部E3に形成されている中足支持部411と、前足部E2に形成されている前足支持部412と、が含まれている。 The support portion 41 is also a portion to which the outsole O that comes into contact with the ground contact surface such as the ground is attached. The support portion 41 includes a hindfoot support portion 410 formed on the hindfoot portion E1, a middle foot support portion 411 formed on the middle foot portion E3, and a forefoot support formed on the forefoot portion E2. A part 412 and is included.

後足支持部410は、前記横幅方向において、変形部5の外側に並ぶ位置に形成されている。また、後足支持部410は、前記前後方向における後方側になるにつれて、徐々に上方に向かうように湾曲した形状となっている(図1参照)。 The hind foot support portion 410 is formed at a position arranged outside the deformed portion 5 in the lateral width direction. Further, the hind foot support portion 410 has a shape curved so as to gradually move upward toward the rear side in the front-rear direction (see FIG. 1).

本実施形態に係る後足支持部410には、図2に示すように、アウトソールOを介して接地面上に配置される接地側領域410aと、該接地側領域410aよりも内側(より具体的には、前記幅方向における外側で変形部5に対向する場所)に位置し且つ該接地側領域410aから上方に向かうように形成された逃領域410bが含まれている。そのため、逃領域410bは、接地側領域410aに取り付けられているアウトソールOよりも上方に位置することになる。これにより、靴底3は、着用者の立位時及び歩行時において、逃領域410bが接地面に接触しないように構成されている。 As shown in FIG. 2, the hind foot support portion 410 according to the present embodiment has a ground contact side region 410a arranged on the ground contact surface via the outsole O and inside (more specifically) the ground contact side region 410a. It includes an escape region 410b that is located on the outer side in the width direction and faces the deformed portion 5) and is formed so as to face upward from the ground side region 410a. Therefore, the escape region 410b is located above the outsole O attached to the ground side region 410a. As a result, the sole 3 is configured so that the escape region 410b does not come into contact with the ground contact surface when the wearer is standing or walking.

前足支持部412は、前記前後方向における前方側になるにつれて、徐々に上方に向かうように湾曲した形状となっている(図1参照)。 The forefoot support portion 412 has a shape curved so as to gradually move upward toward the front side in the front-rear direction (see FIG. 1).

本実施形態に係るベース部4には、図3、図4、及び図7に示すように、後端を基準として前端側に向かって延びるガイド溝42が形成されている。 As shown in FIGS. 3, 4, and 7, the base portion 4 according to the present embodiment is formed with a guide groove 42 extending toward the front end side with the rear end as a reference.

ガイド溝42は、前記幅方向におけるベース部4の中央部側に形成されており、該ガイド溝42の先端は、前足部E2内でベース部4の前端よりも後方側に位置している。 The guide groove 42 is formed on the central portion side of the base portion 4 in the width direction, and the tip of the guide groove 42 is located in the forefoot portion E2 on the rear side of the front end of the base portion 4.

また、中足支持部411には、ガイド溝42を境として内側に位置する内側中足支持部411と、ガイド溝42を境として外側に位置する外側中足支持部411とが含まれている。 Further, the midfoot support portion 411 includes an inner midfoot support portion 411 located inside with the guide groove 42 as a boundary and an outer midfoot support portion 411 located outside with the guide groove 42 as a boundary. ..

なお、本実施形態に係るガイド溝42は、前足部E2内においては、先端側になるにつれて内側に向かうように湾曲している。 The guide groove 42 according to the present embodiment is curved inward in the forefoot portion E2 toward the tip end side.

図1に戻り、変形部5は、靴底3の厚み方向で弾性圧縮可能であり、前記前後方向における後方側の圧縮剛性が前記前後方向における前方側の圧縮剛性よりも低くなるように構成されている。 Returning to FIG. 1, the deformed portion 5 can be elastically compressed in the thickness direction of the sole 3, and the compression rigidity on the rear side in the front-rear direction is lower than the compression rigidity on the front side in the front-rear direction. ing.

また、変形部5の前方側及び外側の周側部は、ベース部4(前足支持部412や、後足支持部410とが隣接しているが、該周側部と、前足支持部412及び後足支持部410とは互いに分断されている。 Further, the front side and the outer peripheral side portion of the deformed portion 5 are adjacent to the base portion 4 (forefoot support portion 412 and hindfoot support portion 410, but the peripheral side portion and the forefoot support portion 412 and It is separated from the hind foot support portion 410.

本実施形態に係る変形部5は、後足部E1の後端部に設けられた易変形部6と、該易変形部6に対して前方側で隣り合う位置に設けられた難変形部7とを有する。なお、ベース部4と変形部5とが弾性を有する材料で構成されている場合は、立位時や歩行時に何れも弾性変形することになるが、ベース部4には圧縮代が設定されていないのに対して、変形部5は圧縮代を持つように構成されているため、ベース部4に対して変形部5(特に易変形部6)を大きく弾性変形させることができるようになっている。 The deformable portion 5 according to the present embodiment is an easily deformable portion 6 provided at the rear end portion of the hind foot portion E1 and a difficult deformable portion 7 provided at a position adjacent to the easily deformable portion 6 on the front side. And have. If the base portion 4 and the deforming portion 5 are made of an elastic material, the base portion 4 and the deforming portion 5 are elastically deformed when standing or walking, but a compression allowance is set for the base portion 4. On the other hand, since the deforming portion 5 is configured to have a compression allowance, the deforming portion 5 (particularly the easily deforming portion 6) can be greatly elastically deformed with respect to the base portion 4. There is.

また、変形部5は、図3及び図7に示すように、前記前後方向における先端が、中足部E3と前足部E2の境目、若しくは中足部E3内に位置していればよいが、変形部5の全長(前記前後方向における全長)は、ベース部4の最後端を基準として該ベース部4の全長の約20%〜55%となっていることが好ましい。本実施形態の変形部5の全長はベース部4の全長の約50%となっており、変形部5の先端が中足部E3の中央部(前記前後方向における中央部)に位置している。 Further, as shown in FIGS. 3 and 7, the tip of the deformed portion 5 in the front-rear direction may be located at the boundary between the midfoot portion E3 and the forefoot portion E2 or within the midfoot portion E3. The total length of the deformed portion 5 (total length in the front-rear direction) is preferably about 20% to 55% of the total length of the base portion 4 with reference to the rearmost end of the base portion 4. The total length of the deformed portion 5 of the present embodiment is about 50% of the total length of the base portion 4, and the tip of the deformed portion 5 is located at the central portion of the midfoot portion E3 (the central portion in the front-rear direction). ..

変形部5の後端は、ベース部4(取付部40)の後端と一致又は略一致する場所に配置されている。また、変形部5は、後端側から前端側になるにつれて徐々に剛性が高くなるように構成されているが、易変形部6が難変形部7よりも圧縮変形し易くなっていれば、例えば、後端側から前端側にかけて、段階的に剛性が高くなるように構成されていてもよい。なお、本実施形態における圧縮剛性とは、前記厚み方向における圧縮力に対する剛性(潰れ難さ)のことである。 The rear end of the deformed portion 5 is arranged at a position that coincides with or substantially coincides with the rear end of the base portion 4 (mounting portion 40). Further, the deformed portion 5 is configured so that the rigidity gradually increases from the rear end side to the front end side, but if the easily deformed portion 6 is more easily compressed and deformed than the difficult deformed portion 7, For example, the rigidity may be gradually increased from the rear end side to the front end side. The compressive rigidity in the present embodiment is the rigidity (difficulty of crushing) with respect to the compressive force in the thickness direction.

本実施形態に係る変形部5は、図5に示すように、取付部40に取り付けられる取付板部50と、該取付板部50の下方側(すなわち、取付板部50よりも接地面側)に位置する接地側板部51と、取付板部50と接地側板部51との間に形成された圧縮調整部52とを有しており、取付板部50、接地側板部51、圧縮調整部52は、それぞれ弾性を有する材料で構成されている。 As shown in FIG. 5, the deformed portion 5 according to the present embodiment has a mounting plate portion 50 attached to the mounting portion 40 and a lower side of the mounting plate portion 50 (that is, a ground contact surface side of the mounting plate portion 50). It has a grounding side plate portion 51 located in, and a compression adjusting portion 52 formed between the mounting plate portion 50 and the grounding side plate portion 51, and has a mounting plate portion 50, a grounding side plate portion 51, and a compression adjusting portion 52. Are each made of elastic material.

取付板部50には、図6に示すように、取付部40に固定される固定面500と、接地側板部51に対向する上側対向面501とを有するように構成されており、該上側対向面501は、外側から内側になるにつれて徐々に上方に向かうように傾斜している。 As shown in FIG. 6, the mounting plate portion 50 is configured to have a fixed surface 500 fixed to the mounting portion 40 and an upper facing surface 501 facing the grounding side plate portion 51, and the upper facing surface 501. The surface 501 is inclined so as to gradually move upward from the outside to the inside.

接地側板部51には、取付板部50(上側対向面501)に対向する下側対向面510と、該下側対向面510とは反対側の一面、すなわち、該下側対向面510よりも接地面側に配置される一面である下面511とを有するように構成されており、該下側対向面510は、外側から内側になるにつれて徐々に下方側に向かうように傾斜している。 The grounding side plate portion 51 has a lower facing surface 510 facing the mounting plate portion 50 (upper facing surface 501) and one surface opposite to the lower facing surface 510, that is, more than the lower facing surface 510. It is configured to have a lower surface 511, which is one surface arranged on the ground contact surface side, and the lower facing surface 510 is gradually inclined downward from the outside to the inside.

そのため、前記厚み方向における接地側板部51と取付板部50の間隔は、外側から内側になるにつれて徐々に大きくなっている。 Therefore, the distance between the grounding side plate portion 51 and the mounting plate portion 50 in the thickness direction gradually increases from the outside to the inside.

圧縮調整部52は、図5に示すように、前記前後方向において間隔をあけて並ぶように取付板部50と接地側板部51との間に複数形成されている。 As shown in FIG. 5, a plurality of compression adjusting portions 52 are formed between the mounting plate portion 50 and the grounding side plate portion 51 so as to be arranged at intervals in the front-rear direction.

圧縮調整部52は、前記幅方向における内側から外側に向かって延びている。 The compression adjusting unit 52 extends from the inside to the outside in the width direction.

また、圧縮調整部52は、側面視において前記厚み方向に対して前記前後方向に傾いている。 Further, the compression adjusting unit 52 is tilted in the front-rear direction with respect to the thickness direction in the side view.

複数の圧縮調整部52のうち、易変形部6を構成するものは、上端部(取付板部50に連続する一端)が下端部(接地側板部51に連続する一端)よりも前記前後方向における前方側に位置するように傾斜しており、また、前記前後方向において後方側に位置するものであるほど前記厚み方向に対する傾きが大きくなっている。 Of the plurality of compression adjusting portions 52, those constituting the easily deformable portion 6 have an upper end portion (one end continuous with the mounting plate portion 50) in the front-rear direction with respect to the lower end portion (one end continuous with the grounding side plate portion 51). It is inclined so as to be located on the front side, and the more it is located on the rear side in the front-rear direction, the greater the inclination with respect to the thickness direction.

そのため、易変形部6を構成する圧縮調整部52は、前記前後方向における後方側に位置するものであるほど、前記厚み方向における圧縮力(着用者の荷重)が加わった際に傾倒し易くなっている。 Therefore, the more the compression adjusting unit 52 constituting the easily deformable unit 6 is located on the rear side in the front-rear direction, the easier it is to tilt when a compressive force (wearer's load) in the thickness direction is applied. ing.

一方、難変形部7を構成する圧縮調整部52は、易変形部6を構成する圧縮調整部52よりも前記厚み方向に対する傾きが小さくなっており、前記厚み方向における圧縮力(着用者の荷重)が加わった際に傾倒し難くなっている。 On the other hand, the compression adjusting portion 52 constituting the difficult-to-deform portion 7 has a smaller inclination with respect to the thickness direction than the compression adjusting portion 52 constituting the easily deformable portion 6, and the compressive force (load of the wearer) in the thickness direction is smaller. ) Is added, it becomes difficult to tilt.

これにより、変形部5では、前記厚み方向における圧縮力が加わると、変形部5の後方側(すなわち、易変形部6に該当する部分)の方が、変形部5の前方側(すなわち、難変形部7に該当する部分)よりも沈み込み易くなっている。 As a result, when the compressive force in the thickness direction is applied to the deformed portion 5, the rear side of the deformed portion 5 (that is, the portion corresponding to the easily deformed portion 6) is on the front side of the deformed portion 5 (that is, it is difficult). It is easier to sink than the portion corresponding to the deformed portion 7).

本実施形態では、易変形部6を構成している取付板部50の後方側、接地側板部51の後方側、変形部5の後方側に位置する圧縮調整部52を、それぞれ後方取付板部502、後方接地側板部512、後方圧縮調整部520と称し、難変形部7を構成している取付板部50の前方側、接地側板部51の前方側、変形部5の前方側に位置する圧縮調整部52を、それぞれ前方取付板部503、前方接地側板部513、前方圧縮調整部521と称して以下の説明を行うこととする。 In the present embodiment, the compression adjusting portions 52 located on the rear side of the mounting plate portion 50 constituting the easily deformable portion 6, the rear side of the grounding side plate portion 51, and the rear side of the deformed portion 5 are respectively rear-mounted plate portions. It is referred to as 502, the rear grounding side plate portion 512, and the rear compression adjusting portion 520, and is located on the front side of the mounting plate portion 50 constituting the difficult-to-deform portion 7, the front side of the grounding side plate portion 51, and the front side of the deformed portion 5. The compression adjusting unit 52 will be referred to as a front mounting plate portion 503, a front grounding side plate portion 513, and a front compression adjusting portion 521, respectively, and the following description will be given.

前記前後方向で隣り合う圧縮調整部52の間は、中空の領域(以下、中空領域称する)53となっており、該中空領域53には、図6に示すように、変形部5の内側の側面(すなわち、取付板部50及び接地側板部51の前記他端)で開口する内側開口530と、接地側板部51の外側にて下方側に向けて開口する外側開口531とが含まれている。また、中空領域53は、外側から内側になるにつれて広がるように形成されている。 A hollow region (hereinafter referred to as a hollow region) 53 is formed between the compression adjusting portions 52 adjacent to each other in the front-rear direction, and the hollow region 53 is inside the deformed portion 5 as shown in FIG. An inner opening 530 that opens on the side surface (that is, the other end of the mounting plate portion 50 and the grounding side plate portion 51) and an outer opening 531 that opens downward on the outside of the grounding side plate portion 51 are included. .. Further, the hollow region 53 is formed so as to expand from the outside to the inside.

本実施形態に係る靴1の構成は、以上の通りである。続いて、着用者が立位状態、及び歩行状態であるときの靴底3の変形の仕方について説明を行う。 The configuration of the shoe 1 according to the present embodiment is as described above. Subsequently, a method of deforming the sole 3 when the wearer is in a standing state and a walking state will be described.

着用者が立位状態である場合、図8(a)、図8(b)に示すように、靴底3全体に着用者の荷重がかかる。このとき、変形部5では、難変形部7が変形しない若しくは略変形しないため、易変形部6も全く変形しないか、略変形せず、靴底3全体が内側にも外側にも傾かない水平な姿勢で保たれる。そのため、着用者の足も、内側にも外側にも傾かない水平な姿勢に保たれる。 When the wearer is in the standing position, the load of the wearer is applied to the entire sole 3 as shown in FIGS. 8 (a) and 8 (b). At this time, in the deformed portion 5, since the hardly deformed portion 7 is not deformed or substantially deformed, the easily deformed portion 6 is not deformed at all or is not substantially deformed, and the entire sole 3 is not tilted inward or outward horizontally. It is kept in a good posture. Therefore, the wearer's feet are maintained in a horizontal posture that does not tilt inward or outward.

これに対し、着用者が歩行する場合、踵で着地すると、荷重が後足部E1の後方の外側の地点P1を始点として踵の外形に沿うようにして中足部E3の後方内側の地点P2まで移る(図9参照)。 On the other hand, when the wearer walks, when the wearer lands on the heel, the load starts from the rear outer point P1 of the hindfoot E1 and follows the outer shape of the heel, and the rear inner point P2 of the midfoot E3. (See Fig. 9).

本実施形態では、後足支持部410の圧縮剛性が易変形部6の圧縮剛性よりも高くなっているため、後足部E1全体に着用者の踵から荷重がかかると、該後足支持部410は変形しないか略変形しないが、図10(a)、図10(b)に示すように、易変形部6が圧縮変形するため、後足部E1の内側が沈み込む。これにより、歩行中の着用者の荷重(踵にかかる荷重)が内側に案内されるとともに、下腿が内側に傾き始める。なお、図10(a)は、図10(b)の矢印Aの方向で靴1を見た図である。 In the present embodiment, the compressive rigidity of the hindfoot support portion 410 is higher than the compressive rigidity of the easily deformable portion 6, so that when a load is applied to the entire hindfoot portion E1 from the wearer's heel, the hindfoot support portion The 410 is not deformed or substantially not deformed, but as shown in FIGS. 10 (a) and 10 (b), the easily deformed portion 6 is compression-deformed, so that the inside of the hind foot portion E1 sinks. As a result, the load of the wearer during walking (the load applied to the heel) is guided inward, and the lower leg begins to tilt inward. Note that FIG. 10A is a view of the shoe 1 viewed in the direction of arrow A in FIG. 10B.

また、本実施形態では、易変形部6と難変形部7とが一体に形成されているため、易変形部6の圧縮変形に伴い、難変形部7も圧縮変形し始める。 Further, in the present embodiment, since the easily deformable portion 6 and the difficult-to-deformate portion 7 are integrally formed, the difficult-to-deformate portion 7 also begins to be compression-deformed with the compression deformation of the easily-deformable portion 6.

そして、踵で着地した状態から後足部E1及び中足部E3が接地した状態に移る際、着用者の足にかかる荷重は、中足部E3の後方内側の地点P2から前足部E2後方の中央部(前記幅方向における中央部)の地点P3に移る(図9参照)。 Then, when the hindfoot E1 and the midfoot E3 move from the state of landing on the heel to the state of being in contact with the ground, the load applied to the wearer's foot is applied from the point P2 on the rear medial side of the midfoot E3 to the rear of the forefoot E2. It moves to the point P3 of the central portion (the central portion in the width direction) (see FIG. 9).

このとき、図11(a)、図11(b)に示すように、足にかかる荷重が内側に移った状態で難変形部7が踏み込まれると、易変形部6に加えて難変形部7も圧縮変形する。 At this time, as shown in FIGS. 11A and 11B, if the difficult-to-deform part 7 is stepped on while the load applied to the foot is transferred inward, the hard-to-deform part 7 is added to the easy-to-deform part 6. Also compresses and deforms.

踵で着地した状態から後足部E1及び中足部E3が接地した状態に移る際においては、下腿の外側に傾こうとする動きが大きくなるが、本実施形態の靴底3では、足にかかる荷重が内側に案内され易い状態が続くため、下腿が内側に傾くに伴って膝が内側に寄せられ易くなる。 When the hindfoot E1 and the midfoot E3 are in contact with the ground from the state of landing on the heel, the movement of tilting to the outside of the lower leg becomes large, but in the sole 3 of the present embodiment, the foot Since the state in which the applied load is easily guided inward continues, the knee is easily moved inward as the lower leg is tilted inward.

さらに、後足部E1及び中足部E3が接地した状態から後足部E1及び中足部E3が接地面から離れて前足部E2のみが接地している状態に移るに伴って、易変形部6及び難変形部7が圧縮変形している状態から形状が復帰する。また、着用者が前足部E2全体で接地面を蹴り出す際、着用者の足にかかる荷重は、前足部E2後方の中央部の地点P3から靴底3の前端に移る(図9参照)。 Further, as the hindfoot part E1 and the middle foot part E3 are in contact with the ground, the hindfoot part E1 and the middle foot part E3 are separated from the ground contact surface, and only the forefoot part E2 is in contact with the ground. The shape is restored from the state in which 6 and the difficult-to-deform portion 7 are compression-deformed. Further, when the wearer kicks the ground contact surface with the entire forefoot portion E2, the load applied to the wearer's foot shifts from the point P3 at the center behind the forefoot portion E2 to the front end of the sole 3 (see FIG. 9).

以上のように、本実施形態に係る靴1によれば、着用者が立位状態(足の裏全体で靴底3を踏んでいる状態)である場合には、着用者の足を水平な姿勢で支えることができ、歩行時においては、下腿の外側への傾きを抑えることによって膝の外側への移動を抑えることができる、若しくは膝を内側に寄せることができるため、立位時には着用者に違和感を与えず、歩行時にはO脚による膝への負担を抑えることができるようになっている。 As described above, according to the shoe 1 according to the present embodiment, when the wearer is in a standing state (a state in which the sole 3 is stepped on by the entire sole of the foot), the wearer's foot is horizontal. It can be supported in a posture, and when walking, the movement of the knee to the outside can be suppressed by suppressing the inclination of the lower leg to the outside, or the knee can be moved inward, so that the wearer can stand. It is possible to suppress the burden on the knees due to the O-legs when walking without giving a sense of discomfort.

特に、下腿は、踵で着地した状態から後足部E1及び中足部E3が接地した状態に移るまでの動作期間において外側に傾こうとする動きが大きくなるが、本実施形態に係る靴1は、かかる動作期間の間、足にかかる荷重が内側に案内され易い状態が続くため、下腿の外側への傾き、すなわち、膝の外側への移動が抑えられ、これにより、O脚による膝への負担を抑えることができるようになっている。 In particular, the lower leg tends to tilt outward during the operation period from the state of landing on the heel to the state of the hindfoot E1 and the midfoot E3 touching the ground. During this movement period, the load applied to the foot continues to be easily guided inward, so that the outward inclination of the lower leg, that is, the outward movement of the knee is suppressed, and thereby the O-leg to the knee. It is possible to reduce the burden on the patient.

また、靴底3の易変形部6が後方側になるにつれて上方に向かうように湾曲していているため、立位時においては、易変形部6が接地面に接触し難くなり、着用者の荷重で易変形部6が圧縮変形してしまうことを防止できる。 Further, since the easily deformable portion 6 of the shoe sole 3 is curved so as to move upward toward the rear side, it becomes difficult for the easily deformable portion 6 to come into contact with the ground contact surface when standing, and the wearer It is possible to prevent the easily deformed portion 6 from being compressively deformed by a load.

さらに、歩行時においては、着用者が踵で着地した際に、易変形部6と地面との接地面積を広く確保することができるため、易変形部6に着用者の荷重がかかり易くなる。従って、易変形部6が十分に圧縮変形して靴底3の後足部E1の内側が大きく沈み込むため、着用者の荷重が内側に案内され易くなる。 Further, during walking, when the wearer lands on the heel, a large contact area between the easily deformable portion 6 and the ground can be secured, so that the wearer's load is likely to be applied to the easily deformable portion 6. Therefore, the easily deformable portion 6 is sufficiently compressed and deformed, and the inside of the hind foot portion E1 of the sole 3 is greatly sunk, so that the load of the wearer is easily guided to the inside.

また、本実施形態では、変形部5に対して後足支持部410、内側中足支持部411、外側中足支持部411が隣接しているが、これらの構成は互いに分断されているため、変形部5と、後足支持部410や、内側中足支持部411、外側中足支持部411が独立して圧縮変形できるようになっている。従って、変形部5の圧縮変形が後足支持部410や、内側中足支持部411、外側中足支持部411の剛性に妨げられないため、靴底3の後足部E1の内側が沈み易くなる。 Further, in the present embodiment, the hind foot support portion 410, the medial midfoot support portion 411, and the lateral midfoot support portion 411 are adjacent to the deformed portion 5, but these configurations are separated from each other. The deformed portion 5, the hind foot support portion 410, the medial midfoot support portion 411, and the lateral midfoot support portion 411 can be independently compressed and deformed. Therefore, since the compressive deformation of the deformed portion 5 is not hindered by the rigidity of the hindfoot support portion 410, the medial midfoot support portion 411, and the lateral midfoot support portion 411, the inside of the hindfoot portion E1 of the sole 3 tends to sink. Become.

さらに、本実施形態では、変形部5の圧縮剛性が後端側から前端側になるにつれて徐々に高くなっているため、歩行時においては変形部5が後端側から前端側にかけてスムーズに圧縮変形する。これにより、着用者は、違和感の少ない円滑な歩行動作をとることができるようになる。 Further, in the present embodiment, since the compressive rigidity of the deformed portion 5 gradually increases from the rear end side to the front end side, the deformed portion 5 is smoothly compressed and deformed from the rear end side to the front end side during walking. To do. As a result, the wearer can take a smooth walking motion with less discomfort.

本実施形態において、変形部5の外側には難変形部7よりも圧縮剛性が高い後足支持部410が配置されているため、着用者の足にかかる荷重が外側に案内されてしまうことを抑えることができる。 In the present embodiment, since the hind foot support portion 410 having higher compressive rigidity than the difficult-to-deform portion 7 is arranged on the outside of the deformable portion 5, the load applied to the wearer's foot is guided to the outside. It can be suppressed.

また、変形部5の外側には難変形部7よりも圧縮剛性が高い後足支持部410が配置されているが、後足支持部410の内側(変形部5側)には接地側領域410aから上方に向かうように形成された逃領域410bが含まれているため、後足支持部410のさらに内側にある変形部5が圧縮変形した際に、後足支持部410の内側が接地面に接触してしまうことを抑えることができる。 Further, the hindfoot support portion 410 having higher compressive rigidity than the difficult-to-deform portion 7 is arranged on the outside of the deformed portion 5, but the ground contact side region 410a is arranged on the inside of the hindfoot support portion 410 (deformed portion 5 side). Since the escape region 410b formed so as to go upward from the hind foot support portion 410 is included, when the deformed portion 5 further inside the hind foot support portion 410 is compression-deformed, the inside of the hind foot support portion 410 becomes a ground contact surface. It is possible to prevent contact.

従って、本実施形態に係る靴1は、変形部5の圧縮変形が後足支持部410により妨げられないようになっている。 Therefore, in the shoe 1 according to the present embodiment, the compression deformation of the deformed portion 5 is not hindered by the hind foot support portion 410.

そして、本実施形態に係る靴底3では、変形部5の先端が靴底3の前足部E2と中足部の境目に対応する位置又は該境目よりも後方側に位置するように構成されているため、靴底3の後足部E1から中足部E3にかけて荷重がかかっていた状態から前足部E2側に荷重がかかっている状態に切り替わるに伴い、着用者の荷重が足の内側から前記横幅方向における中央部側に移り易くなる。 The sole 3 according to the present embodiment is configured such that the tip of the deformed portion 5 is located at a position corresponding to the boundary between the forefoot portion E2 and the midfoot portion of the shoe sole 3 or located on the rear side of the boundary. Therefore, as the load is applied from the hind foot portion E1 to the middle foot portion E3 of the sole 3 to the state in which the load is applied to the forefoot portion E2 side, the load of the wearer is applied from the inside of the foot to the above. It becomes easy to move to the central part side in the width direction.

従って、着用者が靴底3の前足部E2全体で接地面を蹴り出せるようになり、スムーズな歩行動作をとれるようになる。 Therefore, the wearer can kick out the ground contact surface with the entire forefoot portion E2 of the sole 3, and can take a smooth walking motion.

また、後足支持部410及び易変形部6が後方側になるにつれて上方に向かうように湾曲していているため、着用者が歩行時に踵で着地した後、荷重が前方側に移り易くなる。 Further, since the hind foot support portion 410 and the easily deformable portion 6 are curved so as to move upward toward the rear side, the load is likely to be transferred to the front side after the wearer lands on the heel during walking.

さらに、前足支持部412が前方側になるにつれて上方に向かうように湾曲していているため、着用者が接地面を蹴り出す動作がベース部4により妨げられ難くなっている。なお、本実施形態では、上述のように、変形部5がベース部4の後端から中足部E3の中央部に至る領域に設けられることにより、歩行動作中の人の荷重が靴底3の後足部E1から中足部E3にかけてかかっていた状態から該荷重が前足部E2側にかかっている状態に切り替わる際に、着用者の荷重が足の横幅方向における中央部に戻り易くなっているため、着用者が前足部E2全体で接地面を蹴り出し易くなっている。 Further, since the forefoot support portion 412 is curved so as to move upward toward the front side, the movement of the wearer kicking the ground contact surface is less likely to be hindered by the base portion 4. In the present embodiment, as described above, the deformed portion 5 is provided in the region from the rear end of the base portion 4 to the central portion of the midfoot portion E3, so that the load of the person during the walking motion is applied to the sole 3. When switching from the state in which the hindfoot portion E1 to the midfoot portion E3 is applied to the state in which the load is applied to the forefoot portion E2 side, the wearer's load is likely to return to the central portion in the lateral width direction of the foot. Therefore, it is easy for the wearer to kick out the ground contact surface with the entire forefoot portion E2.

従って、本実施形態に係る靴1は、着用者が歩行時に前方に進むための推進力が付き易くなるため、スムーズな歩行動作をとれるようになる。 Therefore, the shoe 1 according to the present embodiment can easily provide a propulsive force for the wearer to move forward when walking, so that the shoe 1 can take a smooth walking motion.

なお、本発明の靴は、上記一実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲において種々変更を行うことは勿論である。 It should be noted that the shoes of the present invention are not limited to the above-described embodiment, and it goes without saying that various modifications are made without departing from the gist of the present invention.

上記実施形態では、易変形部6と難変形部7とが一体的に形成されていたが、この構成に限定されない。例えば、易変形部6と難変形部7とは別体であってもよい。 In the above embodiment, the easily deformable portion 6 and the difficult-to-deformate portion 7 are integrally formed, but the present invention is not limited to this configuration. For example, the easily deformable portion 6 and the difficultly deformable portion 7 may be separate bodies.

上記実施形態において、変形部5の剛性は、圧縮調整部52の傾き(前記厚み方向に対する傾き)を変化させることで調整されていたが、例えば、圧縮調整部52の硬度や、幅(前記前後方向における幅)を変化させることで変形部5の剛性を調整してもよい。なお、変形部5の剛性は、中空領域53のサイズを変更することにより調整することも可能である。 In the above embodiment, the rigidity of the deformed portion 5 is adjusted by changing the inclination of the compression adjusting portion 52 (inclination with respect to the thickness direction). For example, the hardness and width of the compression adjusting portion 52 (before and after the above). The rigidity of the deformed portion 5 may be adjusted by changing the width in the direction). The rigidity of the deformed portion 5 can also be adjusted by changing the size of the hollow region 53.

また、後方取付板部502と後方接地側板部512との間隔よりも前方取付板部503と前方接地側板部513との間隔を狭めたうえで、取付部40の前方側の厚みを大きくする等して変形部5の剛性を調整してもよい。 Further, the distance between the front mounting plate portion 503 and the front grounding side plate portion 513 is narrower than the distance between the rear mounting plate portion 502 and the rear grounding side plate portion 512, and the thickness of the front side of the mounting portion 40 is increased. The rigidity of the deformed portion 5 may be adjusted accordingly.

上記実施形態において、変形部5は、板状の取付板部50と、接地側板部51とを圧縮調整部52で繋いだ構造となっていたが、この構成に限定されない。例えば、変形部5は、ブロック状であってもよい。すなわち、上記実施形態の変形部5は、中空状に形成されていたが、例えば、中実であってもよい。この場合、易変形部6と難変形部7を一つのブロック状の部材で構成してもよいし、易変形部6と難変形部7とを別々のブロック状の部材で構成してもよい。 In the above embodiment, the deformed portion 5 has a structure in which the plate-shaped mounting plate portion 50 and the grounding side plate portion 51 are connected by the compression adjusting portion 52, but the present invention is not limited to this configuration. For example, the deformed portion 5 may have a block shape. That is, although the deformed portion 5 of the above embodiment is formed in a hollow shape, it may be solid, for example. In this case, the easily deformable portion 6 and the difficult-to-deformate portion 7 may be composed of one block-shaped member, or the easily-deformable portion 6 and the difficult-to-deformate portion 7 may be composed of separate block-shaped members. ..

なお、上記構成を採用する場合、易変形部6と難変形部7の剛性は、硬度や、厚み等により調整することになるが、板状の取付板部50と、接地側板部51とを圧縮調整部52で繋いだ構造としている場合は、圧縮調整部52の形状で易変形部6と難変形部7の剛性を調整できるため、該剛性を調整し易くなる。 When the above configuration is adopted, the rigidity of the easily deformable portion 6 and the difficult-to-deformate portion 7 is adjusted by the hardness, the thickness, etc., but the plate-shaped mounting plate portion 50 and the grounding side plate portion 51 are combined. When the structure is connected by the compression adjusting portion 52, the rigidity of the easily deformable portion 6 and the difficult-to-deform portion 7 can be adjusted by the shape of the compression adjusting portion 52, so that the rigidity can be easily adjusted.

上記実施形態において、ガイド溝42は、後足部E1から中足部E3を通過して前足部E2まで延びるように形成されていたが、例えば、中足部E3から前足部E2まで延びるように形成されていても良い。 In the above embodiment, the guide groove 42 is formed so as to extend from the hind foot portion E1 through the midfoot portion E3 to the forefoot portion E2, but for example, it extends from the midfoot portion E3 to the forefoot portion E2. It may be formed.

上記実施形態において、ガイド溝42の先端は、前足部E2の先端よりも後方側に位置していたが、この構成に限定されない。例えば、ガイド溝42の先端は、前足部E2の先端と対応する場所に位置していてもよい。すなわち、ガイド溝42の先端は、前足部E2の先端で前記前後方向における前方側に開放されていてもよい。 In the above embodiment, the tip of the guide groove 42 is located on the rear side of the tip of the forefoot portion E2, but the present invention is not limited to this configuration. For example, the tip of the guide groove 42 may be located at a position corresponding to the tip of the forefoot portion E2. That is, the tip of the guide groove 42 may be opened to the front side in the front-rear direction at the tip of the forefoot portion E2.

上記実施形態において、特に言及しなかったが、変形部5は、取付板部50と接地側板部51のそれぞれの外側の一端部を接続する接続部を有するものであってもよい。この場合、接続部は、少なくとも取付板部50の一端部よりも薄肉であることが好ましい。 Although not particularly mentioned in the above embodiment, the deformed portion 5 may have a connecting portion for connecting one outer end portion of each of the mounting plate portion 50 and the grounding side plate portion 51. In this case, the connecting portion is preferably thinner than at least one end of the mounting plate portion 50.

このようにすれば、取付板部50の一端部と接地側板部51の一端部とを接続する接続部の厚みが、取付板部50の一端部よりも薄肉であるため、変形部5に着用者の荷重がかかった際に、接続部を基点として取付板部50を接地側板部51に接近させるようにして変形部5を変形させることができる。 In this way, since the thickness of the connecting portion connecting one end of the mounting plate 50 and one end of the grounding side plate 51 is thinner than that of one end of the mounting plate 50, it is worn on the deformed portion 5. When a person's load is applied, the deformed portion 5 can be deformed by bringing the mounting plate portion 50 closer to the ground side plate portion 51 with the connecting portion as a base point.

従って、接地側板部51に対して取付板部50を傾けるようにして変形部5を変形させることができるため、着用者の荷重が内側に案内され易くなる。 Therefore, since the deformed portion 5 can be deformed by tilting the mounting plate portion 50 with respect to the ground side plate portion 51, the load of the wearer is easily guided inward.

また、接地側板部51の下面511全体が接地面に接触し易くなるため、例えば、歩行時に接地側板部51の下面511の一部だけが接地面と接触することが抑えられるため、接地側板部51に局所的な摩耗が生じることが抑えられる。 Further, since the entire lower surface 511 of the ground contact side plate portion 51 is likely to come into contact with the ground contact surface, for example, it is possible to prevent only a part of the lower surface 511 of the ground contact side plate portion 51 from coming into contact with the ground contact surface during walking. Local wear on 51 is suppressed.

上記実施形態では、着用者が歩行する場合を前提として靴1の説明を行ったが、走行時と歩行時の着用者の動作は、基本的に同様であるため、走行時等においても歩行時と同様の効果が得られる。 In the above embodiment, the shoe 1 has been described on the premise that the wearer walks, but since the wearer's movements during running and walking are basically the same, the wearer's movements during running and the like are also during walking. The same effect as is obtained.

1…靴、2…着用部、3…靴底、4…ベース部、5…変形部、6…易変形部、7…難変形部、40…取付部、41…支持部、42…ガイド溝、50…取付板部、51…接地側板部、52…圧縮調整部、53…中空領域、410…後足支持部、410a…接地側領域、410b…逃領域、411…中足支持部、内側中足支持部、外側中足支持部、412…前足支持部、500…固定面、501…上側対向面、502…後方取付板部、503…前方取付板部、510…下側対向面、511…下面、512…後方接地側板部、513…前方接地側板部、520…後方圧縮調整部、521…前方圧縮調整部、530…内側開口、531…外側開口、E1…後足部、E2…前足部、E3…中足部、P1…外側後点、P2…地点、P3…地点 1 ... shoes, 2 ... wearing part, 3 ... sole, 4 ... base part, 5 ... deformed part, 6 ... easily deformed part, 7 ... difficult deformed part, 40 ... mounting part, 41 ... support part, 42 ... guide groove , 50 ... Mounting plate part, 51 ... Ground side plate part, 52 ... Compression adjustment part, 53 ... Hollow area, 410 ... Hind foot support part, 410a ... Ground side area, 410b ... Escape area, 411 ... Middle foot support part, inside Midfoot support part, outer foot support part, 412 ... forefoot support part, 500 ... fixed surface, 501 ... upper facing surface, 502 ... rear mounting plate part, 503 ... front mounting plate part, 510 ... lower facing surface, 511 ... Bottom surface, 512 ... Rear ground contact side plate, 513 ... Front ground contact side plate, 520 ... Rear compression adjustment unit, 521 ... Front compression adjustment unit, 530 ... Inner opening, 513 ... Outer opening, E1 ... Hind foot, E2 ... Forefoot Part, E3 ... Midfoot, P1 ... Outer rear point, P2 ... Point, P3 ... Point

Claims (5)

足の外形に合わせて後足部から前足部にかけて広がるように形成されるベース部と、
前記ベース部の接地面側において横幅方向における内側に配置され、且つ先端が前記ベース部の前足部と中足部の境目に対応する位置又は該境目よりも後方側に位置するように形成される変形部であって、靴底の厚み方向で前記ベース部よりも大きく弾性変形可能な変形部と、を備え、
該変形部は、前記ベース部の後足部の後端部に設けられた易変形部と、該易変形部に対して前方側で隣り合う位置に設けられた難変形部とを有し、
前記難変形部は、前記厚み方向における圧縮変形に対する剛性が前記易変形部よりも高い靴底。
A base part that is formed to spread from the hind foot part to the forefoot part according to the outer shape of the foot,
It is formed so as to be arranged inside in the lateral width direction on the ground contact surface side of the base portion and the tip thereof is located at a position corresponding to the boundary between the forefoot portion and the midfoot portion of the base portion or located behind the boundary. It is provided with a deformable portion that is larger than the base portion and can be elastically deformed in the thickness direction of the sole.
The deformable portion has an easily deformable portion provided at the rear end portion of the hind foot portion of the base portion and a difficult deformable portion provided at a position adjacent to the easily deformable portion on the front side.
The hard-to-deform portion is a shoe sole having a higher rigidity against compressive deformation in the thickness direction than the easily deformable portion.
前記変形部には、内側の側面で開口する内側開口が含まれる中空領域が形成され、
該中空領域は、前記横幅方向における外側から内側に向かうにつれて上下方向での幅が広がるように形成される、
請求項1に記載の靴底。
A hollow region including an inner opening that opens on the inner side surface is formed in the deformed portion.
The hollow region is formed so that the width in the vertical direction increases from the outside to the inside in the width direction.
The sole according to claim 1.
前記ベース部は、前記変形部に対して外側で横並びに配置された後足支持部を備え、
該後足支持部の前記厚み方向における圧縮に対する剛性は、前記難変形部よりも高くなっている請求項1又は請求項2に記載の靴底。
The base portion includes a hind foot support portion arranged side by side with respect to the deformed portion.
The sole according to claim 1 or 2, wherein the rigidity of the hind foot support portion with respect to compression in the thickness direction is higher than that of the difficult-to-deform portion.
前記後足支持部の下面には、
アウトソールが取り付けられる接地側領域と、
該接地側領域よりも内側に位置し且つ該接地側領域を基準として上方に延びるように形成された逃領域とが含まれている請求項3に記載の靴底。
On the lower surface of the hind foot support portion,
The ground side area where the outsole is attached and
The sole according to claim 3, wherein the shoe sole is located inside the ground contact area and includes an escape region formed so as to extend upward with respect to the ground contact area.
着用者が足を入れる着用部と、
該着用部の下側に設けられた上記請求項1乃至請求項の何れか1項に記載の靴底とを備える靴。
The wearing part where the wearer puts his foot and
A shoe provided with a sole according to any one of claims 1 to 4 provided on the lower side of the wearing portion.
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JPH0838207A (en) * 1993-07-18 1996-02-13 Sachiko Kosaka Footwear for patient with knee arthritis deformation
JP3479611B2 (en) * 1999-05-31 2003-12-15 株式会社アシックス Sole structure
KR100317184B1 (en) * 1999-09-06 2002-01-18 장성욱 Shoes bottom
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