JP7115860B2 - Shoe sole shock absorbing member and shoe provided with the same - Google Patents

Shoe sole shock absorbing member and shoe provided with the same Download PDF

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JP7115860B2
JP7115860B2 JP2018017011A JP2018017011A JP7115860B2 JP 7115860 B2 JP7115860 B2 JP 7115860B2 JP 2018017011 A JP2018017011 A JP 2018017011A JP 2018017011 A JP2018017011 A JP 2018017011A JP 7115860 B2 JP7115860 B2 JP 7115860B2
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shock absorbing
absorbing member
portions
outer peripheral
pipe
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JP2019058637A (en
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陽平 吉田
幸司 伊藤
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Mizuno Corp
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Mizuno Corp
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本発明は、シューズ用ソールの衝撃緩衝部材およびそれを備えるシューズに関するものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing member for shoe soles and shoes having the same.

従来から、例えば特許文献１のように、シューズの前後方向で互いに間隔をあけて配置され、上下方向の外力によりシューズの前後方向に向かって弾性変形可能な前後一対の壁部と、前後一対の壁部同士を互いに連結する弾性変形可能なバネ部材とを備えた、シューズ用ソールの衝撃緩衝部材が開示されている（図５Ｂを参照）。各壁部は、上下方向略中央部がシューズの前側または後側に向かって湾曲状に突出するように形成されている。また、各壁部の内壁面には、上下方向略中央にシューズの足幅方向に延びる凹部が形成されている。さらに、バネ部材は、断面視略楕円状の前端部および後端部の各々が各壁部の凹部に嵌合された状態で前後方向に延びるように平板状に形成されている。 Conventionally, for example, as disclosed in Patent Document 1, a pair of front and rear wall portions are arranged at intervals in the front-rear direction of the shoe and elastically deformable in the front-rear direction of the shoe by an external force in the vertical direction. A shock absorbing member for a shoe sole is disclosed comprising an elastically deformable spring member connecting the walls to each other (see Figure 5B). Each wall portion is formed such that the substantially central portion in the vertical direction protrudes in a curved shape toward the front side or the rear side of the shoe. In addition, a concave portion extending in the foot width direction of the shoe is formed in the inner wall surface of each wall portion substantially in the center in the vertical direction. Further, the spring member is formed in a flat plate shape so as to extend in the front-rear direction with each of the front end portion and the rear end portion, which are substantially elliptical in cross section, fitted into the recesses of the respective wall portions.

米国特許第８１４６２７０号明細書U.S. Pat. No. 8,146,270

特許文献１の衝撃緩衝部材では、上下方向の外力により各壁部が弾性変形し、かつ各壁部の弾性変形に応じて壁部の上下方向略中央部がシューズの前後方向に移動する。これと同時に、バネ部材も両端部が凹部に嵌合された状態で前後方向に引っ張られて弾性変形する。一方、上下方向の外力がなくなると、壁部およびバネ部材の各々の復元力により衝撃緩衝部材が元の状態に戻ろうとする。これにより、衝撃緩衝性および反発力が発揮される。 In the shock absorbing member of Patent Document 1, each wall portion is elastically deformed by an external force in the vertical direction, and the substantially central portion in the vertical direction of the wall portion moves in the front-rear direction of the shoe according to the elastic deformation of each wall portion. At the same time, the spring member is also elastically deformed by being pulled in the front-rear direction with both ends fitted in the recesses. On the other hand, when the external force in the vertical direction disappears, the shock absorbing member attempts to return to its original state due to the restoring force of each of the wall portion and the spring member. As a result, impact cushioning and repulsive force are exhibited.

しかしながら、バネ部材はその端部が各壁部の凹部に嵌合されているにすぎないため、比較的大きな外力が生じたときに該外力により各壁部が大きく弾性変形するとバネ部材が過剰に伸長してしまい、バネ部材の両端部が各壁部の凹部から外れてしまうおそれがある。すなわち、バネ部材を各壁部に対して安定的に保持することが困難となってしまう。その結果、特許文献１の衝撃緩衝部材では、外力の大きさにより衝撃緩衝性および反発性を適切に維持することができないおそれがあった。 However, since the ends of the spring members are merely fitted into the recesses of the walls, the spring members may be excessively deformed when a relatively large external force causes the walls to undergo large elastic deformation. There is a risk that the ends of the spring member will be out of the recesses in the walls due to the extension. That is, it becomes difficult to stably hold the spring member with respect to each wall. As a result, the impact-absorbing member of Patent Document 1 may not be able to properly maintain impact-absorbing properties and resilience depending on the magnitude of the external force.

本発明は斯かる点に鑑みてなされたものであり、その目的は、シューズ用ソールの衝撃緩衝部材において外力の大小にかかわらず衝撃緩衝性および反発性を維持することにある。 SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to maintain shock-absorbing properties and resilience regardless of the magnitude of external force in a shock-absorbing member of a shoe sole.

上記の目的を達成するために、本発明の第１の形態は、シューズ用ソールの衝撃緩衝部材に係るものであり、この衝撃緩衝部材は、互いに間隔をあけて配置された複数の支持部材と、支持部材同士の間に架け渡され、該支持部材同士を互いに連結する連結部材と、を備えている。各支持部材は、上下方向の外力により弾性変形可能な湾曲状の壁部と、壁部に設けられた少なくとも１つの管部と、を有している。連結部材は、各支持部材の管部内に挿通された状態で端部同士に継ぎ目がないように閉塞状に一体形成されている。そして、連結部材における材料の弾性域は、前記支持部材における材料の弾性域よりも大きくなるように構成されている。 To achieve the above objects, a first aspect of the present invention is directed to a shock absorbing member for a shoe sole, the shock absorbing member comprising a plurality of spaced support members. and a connection member that spans between the support members and connects the support members to each other. Each support member has a curved wall portion that can be elastically deformed by an external force in the vertical direction, and at least one pipe portion provided on the wall portion . The connecting member is integrally formed in a closed shape so that there is no joint between the ends while being inserted into the tubular portion of each supporting member . The elastic region of the material of the connecting member is configured to be larger than the elastic region of the material of the support member.

この第１の形態では、上下方向の外力により各支持部材の壁部の弾性変形に応じて壁部に設けられた管部が所定の方向に移動するとともに、連結部材が管部内に挿通された状態で管部と同方向に移動する。そして、連結部材は各支持部材の管部内に挿通された状態で端部同士に継ぎ目がないように閉塞状に一体形成されている。このため、上下方向の外力により各支持部材の壁部が弾性変形したとしても、連結部材を管部内から容易に外れないようになっている。すなわち、外力により各支持部材の壁部が弾性変形したしても、その変形量の大小にかかわらず連結部材を各支持部材に対して安定的に保持することが可能となる。したがって、第１の形態では、外力の大小にかかわらず衝撃緩衝性および反発性を維持することができる。 In the first embodiment, the pipe portion provided on the wall portion of each support member moves in a predetermined direction according to the elastic deformation of the wall portion of each support member due to an external force in the vertical direction, and the connecting member is inserted through the pipe portion. move in the same direction as the tube. The connecting member is integrally formed in a closed shape so that the ends thereof are seamless while being inserted into the tubular portion of each supporting member. Therefore, even if the walls of the support members are elastically deformed by an external force in the vertical direction, the connecting members will not easily come off from the inside of the tube. That is, even if the wall portion of each support member is elastically deformed by an external force, the connection member can be stably held with respect to each support member regardless of the amount of deformation. Therefore, in the first form, it is possible to maintain impact cushioning and resilience regardless of the magnitude of the external force.

さらに、第１の形態では、各支持部材に上下方向の外力が付与されるとき、各支持部材の壁部には屈曲変形によるひずみが生じる一方、連結部材には各支持部材の管部が所定の方向に移動することにより生じる引っ張り力によるひずみが生じる。このとき、連結部材には弾性域が比較的大きい（すなわち復元力の低下の小さい）材料を用いていることから、上記外力が作用しなくなったときに、連結部材が各支持部材よりも大きな速度で復元するようになる。その結果、連結部材の復元力が各支持部材の復元を助けることになる。これにより、各支持部材のみで復元する場合と比較して、衝撃緩衝部材の反発性をより一層高めることができる。 Further, in the first embodiment, when an external force is applied to each support member in the vertical direction, the wall portion of each support member is distorted due to bending deformation, while the pipe portion of each support member is attached to the connecting member. Strain occurs due to the tensile force caused by moving in the direction of . At this time, since the connecting member is made of a material with a relatively large elastic region (that is, a material with a small reduction in restoring force), the connecting member can move faster than the supporting members when the external force ceases to act. will be restored. As a result, the restoring force of the connecting member helps restore each support member. As a result, the resilience of the shock-absorbing member can be further enhanced compared to the case of restoring only with each supporting member.

第２の形態は、第１の形態において、衝撃緩衝部材は、平面視で略環状に形成された外周部を有しており、連結部材は、隣り合う支持部材同士の間で外周部の周方向に沿って延びる複数の第１連結部と、外周部の周上から内側に向かって延びる複数の第２連結部と、を有しており、支持部材が外力を受けて弾性変形したときに、第１および第２連結部の各々がそれぞれの長さ方向に向かって引っ張られることを特徴とする。 In a second embodiment, in the first embodiment, the impact-absorbing member has an outer peripheral portion that is formed in a substantially annular shape in plan view, and the connecting member has an outer peripheral portion between adjacent support members. It has a plurality of first connecting portions extending along the circumferential direction and a plurality of second connecting portions extending inwardly from the circumference of the outer peripheral portion, and when the support member receives an external force and is elastically deformed Secondly, each of the first and second connecting parts is pulled in the respective longitudinal direction.

この第２の形態では、各支持部材が上下方向の外力を受けて弾性変形したときに第１および第２連結部の各々がそれぞれの長さ方向に引っ張られることから、衝撃緩衝性の偏りが生じにくくなるとともに、各支持部材が過度に変形しないようになる。そして、各支持部材に外力が作用しなくなったときに、第１および第２連結部の各々には、それぞれの長さ方向に引っ張られたときの伸長状態から収縮状態に戻ろうとする復元力が生じるとともに、第１および第２連結部の各復元力が各支持部材の復元力に寄与する。特に、各第１連結部に生じる復元力が隣り合う支持部材に対して相互に寄与する。これにより、衝撃緩衝部材の反発力がより一層向上する。したがって、第２の形態では、より優れた衝撃緩衝性および反発性を発揮することができる。 In the second embodiment, when each support member is elastically deformed by receiving an external force in the vertical direction, each of the first and second connecting portions is pulled in their respective length directions, so that the shock absorbing property is biased. It becomes difficult to generate, and each supporting member is prevented from being excessively deformed. When the external force ceases to act on each supporting member, each of the first and second connecting portions has a restoring force that tends to return to the contracted state from the expanded state when pulled in the respective length directions. and each restoring force of the first and second joints contributes to the restoring force of each support member. In particular, the restoring force generated in each first connecting portion contributes to the adjacent supporting members. This further improves the repulsive force of the shock absorbing member. Therefore, in the second form, it is possible to exhibit more excellent impact cushioning and resilience.

第３の形態は、第２の形態において、支持部材は、外周部の周方向に沿って延びる第１管部と、外周部の周上から内側に向かって延びかつ第１管部と連通する第２管部と、を有している。そして、第１連結部は、両側端部が第１管部内に挿通された状態で支持部材に設けられており、第２連結部は、少なくとも外周部側に位置する外端部が第２管部内に挿通された状態で支持部材に設けられていることを特徴とする。 A third embodiment is the second embodiment, wherein the support member includes a first pipe portion extending along the circumferential direction of the outer peripheral portion and extending inward from the circumference of the outer peripheral portion and communicating with the first pipe portion. and a second tube. The first connecting portion is provided on the supporting member in a state in which both side end portions are inserted into the first pipe portion, and the second connecting portion has an outer end portion positioned at least on the outer peripheral side of the second pipe portion. It is provided on the support member in a state of being inserted into the portion.

この第３の形態では、第１および第２連結部が第１および第２管部により支持部材から容易に外れないようになるため、支持部材と第１および第２連結部との連結力を高めることができる。 In this third embodiment, the first and second pipe portions prevent the first and second connecting portions from being easily separated from the supporting member, so that the connecting force between the supporting member and the first and second connecting portions is reduced. can be enhanced.

第４の形態は、第１～第３のいずれか１つの形態において、支持部材の上側および下側の少なくとも一方に配置され、隣り合う支持部材に架け渡される略板状の受板部材をさら
に備えることを特徴とする。 In a fourth aspect, in any one of the first to third aspects, a substantially plate-shaped receiving plate member disposed on at least one of the upper side and the lower side of the supporting member and bridged between the adjacent supporting members is further provided. It is characterized by having

この第４の形態では、受板部材により、上下方向の外力を隣り合う支持部材に対して略均等に作用させて、衝撃緩衝性の偏りを抑えることができる。 In the fourth embodiment, the receiving plate member allows the external force in the vertical direction to act substantially evenly on the adjacent supporting members, thereby suppressing unevenness in shock absorbing properties.

第５の形態は、第１～第４のいずれか１つの形態に係る衝撃緩衝部材を、シューズ用ソールにおける着用者の足の少なくとも踵部およびＭＰ関節のいずれか一方に対応する位置に配設したシューズであることを特徴とする。 In a fifth mode, the shock absorbing member according to any one of the first to fourth modes is provided at a position corresponding to at least one of the heel portion and the MP joint of the wearer's foot on the shoe sole. It is characterized by being a pair of shoes.

この第５の形態では、着用者の足の踵部またはＭＰ関節に対応する位置で上記第１～第４の形態と同様の作用効果が奏されるシューズを得ることができる。 In the fifth mode, it is possible to obtain a shoe that exhibits the same effects as those in the first to fourth modes at a position corresponding to the heel of the wearer's foot or the MP joint.

以上説明したように、本発明によると、外力の大小にかかわらず衝撃緩衝性および反発性を維持することができる。 As described above, according to the present invention, it is possible to maintain shock absorbing properties and resilience regardless of the magnitude of the external force.

図１は、本発明の第１実施形態に係るシューズを示す斜視図である。FIG. 1 is a perspective view showing a shoe according to a first embodiment of the invention. FIG. 図２は、本発明の第１実施形態に係るシューズを示す底面図である。FIG. 2 is a bottom view showing the shoe according to the first embodiment of the invention. 図３は、衝撃緩衝部材を上方から見て示す斜視図である。FIG. 3 is a perspective view showing the shock absorbing member as viewed from above. 図４は、支持部材を上方から見て示す斜視図である。FIG. 4 is a perspective view showing the support member as viewed from above. 図５は、衝撃緩衝部材の横断面を上方から見て示す断面図である。FIG. 5 is a sectional view showing a cross section of the shock absorbing member as viewed from above. 図６は、衝撃緩衝部材に上下方向の外力が作用したときの支持部材および連結部材の変形状態を示す斜視図である。FIG. 6 is a perspective view showing a deformed state of the supporting member and the connecting member when an external force acts on the shock absorbing member in the vertical direction. 図７は、衝撃緩衝部材に上下方向の外力が作用したときの各部の変形状態を部分的に拡大して示す部分拡大断面図である。FIG. 7 is a partially enlarged cross-sectional view showing a partially enlarged deformation state of each part when an external force acts on the shock absorbing member in the vertical direction. 図８は、第１実施形態に係る衝撃緩衝部材の変形例を上方から見て示す斜視図である。FIG. 8 is a perspective view showing a modification of the shock absorbing member according to the first embodiment, viewed from above. 図９は、参考の実施形態１に係るシューズを示す斜視図である。FIG. 9 is a perspective view showing a shoe according to Reference Embodiment 1. FIG. 図１０は、参考の実施形態１に係る衝撃緩衝部材を上方から見て示す斜視図である。FIG. 10 is a perspective view showing the shock absorbing member according to the first embodiment as viewed from above. 図１１は、参考の実施形態２に係る衝撃緩衝部材を上方から見て示す斜視図である。FIG. 11 is a perspective view showing a shock absorbing member according to a second embodiment as viewed from above. 図１２は、参考の実施形態３に係るシューズを示す斜視図である。FIG. 12 is a perspective view showing a shoe according to Reference Embodiment 3. FIG. 図１３は、参考の実施形態３に係る衝撃緩衝部材を上方から見て示す斜視図である。FIG. 13 is a perspective view showing a shock absorbing member according to a third embodiment as viewed from above. 図１４は、図１３のXIV－XIV線断面図である。14 is a cross-sectional view taken along line XIV-XIV of FIG. 13. FIG. 図１５は、参考の実施形態３に係る衝撃緩衝部材に上下方向の外力が作用したときの支持部材および連結部材の変形状態を示す斜視図である。FIG. 15 is a perspective view showing a deformed state of a support member and a connecting member when an external force acts on the shock absorbing member according to the third embodiment in the vertical direction. 図１６は、参考の実施形態３に係る衝撃緩衝部材の変形例を上方から見て示す斜視図である。FIG. 16 is a perspective view showing a modification of the shock absorbing member according to the third embodiment as viewed from above. 図１７は、参考の実施形態３に係る衝撃緩衝部材の変形例に上下方向の外力が作用したときの支持部材および連結部材の変形状態を示す斜視図である。FIG. 17 is a perspective view showing a deformed state of a support member and a connecting member when an external force in the vertical direction acts on the modified example of the shock absorbing member according to the third embodiment. 図１８は、参考の実施形態４に係る衝撃緩衝部材を上方から見て示す斜視図である。FIG. 18 is a perspective view showing a shock absorbing member according to a fourth embodiment as viewed from above. 図１９は、参考の実施形態４に係る衝撃緩衝部材の平面図である。FIG. 19 is a plan view of a shock absorbing member according to Reference Embodiment 4. FIG. 図２０は、参考の実施形態４に係る衝撃緩衝部材に上下方向の外力が作用したときの支持部材および連結部材の変形状態を示す平面図である。FIG. 20 is a plan view showing a deformed state of the supporting member and the connecting member when an external force acts on the shock absorbing member according to the fourth embodiment in the vertical direction. 図２１は、参考の実施形態５に係る衝撃緩衝部材を上方から見て示す斜視図である。FIG. 21 is a perspective view showing a shock absorbing member according to a fifth embodiment as viewed from above. 図２２は、参考の実施形態５に係る衝撃緩衝部材の平面図である。FIG. 22 is a plan view of a shock absorbing member according to a fifth embodiment of reference . 図２３は、参考の実施形態５に係る衝撃緩衝部材に上下方向の外力が作用したときの支持部材および連結部材の変形状態を示す平面図である。FIG. 23 is a plan view showing a deformed state of the supporting member and the connecting member when an external force acts on the shock absorbing member according to the fifth embodiment in the vertical direction. 図２４は、参考の実施形態５に係る衝撃緩衝部材の変形例を上方から見て示す斜視図である。FIG. 24 is a perspective view showing a modification of the shock absorbing member according to the fifth embodiment as viewed from above. 図２５は、参考の実施形態５に係る衝撃緩衝部材の変形例を備えたシューズを示す側面図である。FIG. 25 is a side view showing a shoe provided with a modification of the shock absorbing member according to Reference Embodiment 5. FIG. 図２６は、参考の実施形態５に係る衝撃緩衝部材の変形例を備えたシューズを示す平面図である。FIG. 26 is a plan view showing a shoe provided with a modification of the shock absorbing member according to the fifth embodiment of the reference . 図２７は、参考の実施形態６に係る衝撃緩衝部材を上方から見て示す斜視図である。FIG. 27 is a perspective view showing a shock absorbing member according to Embodiment 6 as viewed from above. 図２８は、図２７のXXVIII－XXVIII線における断面状態を上方から見て示す斜視図である。28 is a perspective view showing a cross-sectional state taken along line XXVIII--XXVIII of FIG. 27 as viewed from above. 図２９は、参考の実施形態６に係る衝撃緩衝部材の平面図である。FIG. 29 is a plan view of a shock absorbing member according to Embodiment 6 of Reference . 図３０は、参考の実施形態６に係る衝撃緩衝部材に上下方向の外力が作用したときの支持部材および連結部材の変形状態を示す斜視図である。FIG. 30 is a perspective view showing a deformed state of the supporting member and the connecting member when an external force acts on the shock absorbing member according to the sixth embodiment in the vertical direction. 図３１は、参考の実施形態７に係る衝撃緩衝部材を上方から見て示す斜視図である。FIG. 31 is a perspective view showing a shock absorbing member according to Embodiment 7 as viewed from above.

以下、本発明の各実施形態を図面に基づいて詳細に説明する。以下の各実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。 Hereinafter, each embodiment of the present invention will be described in detail based on the drawings. The description of each embodiment below is merely illustrative in nature, and is not intended to limit the present invention, its applications, or its uses.

［第１実施形態］
図１および図２は、本発明の第１実施形態に係るシューズＳの全体を示し、このシューズＳは、例えばランニング、球技等の各種競技におけるスポーツ用シューズ、日常使用のスニーカー、リハビリ用シューズなどに適用される。 [First Embodiment]
FIGS. 1 and 2 show the entirety of a shoe S according to a first embodiment of the present invention, and this shoe S is, for example, sports shoes for various competitions such as running and ball games, sneakers for daily use, rehabilitation shoes, and the like. Applies to

ここで、シューズＳは、右足用シューズのみを例示している。左足用シューズは、右足用シューズと左右対称になるように構成されているので、以下の説明では右足用シューズのみについて説明し、左足用シューズの説明は省略する。 Here, the shoes S exemplify only shoes for the right foot. Since the left shoe and the right shoe are configured to be bilaterally symmetrical, only the right shoe will be described below, and the description of the left shoe will be omitted.

また、以下の説明において、上方（上側）および下方（下側）とはシューズＳの上下方向の位置関係を表し、前方（前側）および後方（後側）とはシューズＳの前後方向の位置関係を表し、内甲側および外甲側とはシューズＳの足幅方向の位置関係を表すものとする。 Further, in the following description, upward (upper side) and downward (lower side) represent the positional relationship of the shoe S in the vertical direction, and forward (front side) and rearward (rear side) represent the positional relationship of the shoe S in the longitudinal direction. , and the inner instep side and the outer instep side represent the positional relationship of the shoe S in the foot width direction.

図１および図２に示すように、シューズＳは、ソール１を備えている。ソール１は、シューズＳを着用した者（以下「着用者」という）の足の前足部から中足部に亘る範囲に設けられたアウトソール２を有している。このアウトソール２は、後述するミッドソール３よりも高硬度の硬質弾性部材で構成されており、例えばエチレン－酢酸ビニル共重合体（ＥＶＡ）等の熱可塑性樹脂、ポリウレタン（ＰＵ）等の熱硬化性樹脂、またはブタジエンラバーやクロロプレンラバー等のラバー素材が適している。アウトソール２の下面には、路面（地面、床面など）に接する接地面が形成されている。 As shown in FIGS. 1 and 2, the shoe S has a sole 1. As shown in FIG. The sole 1 has an outsole 2 provided in a range from the forefoot portion to the middle foot portion of the foot of a person who wears the shoe S (hereinafter referred to as the "wearer"). The outsole 2 is made of a hard elastic member having a hardness higher than that of the midsole 3, which will be described later. A flexible resin or a rubber material such as butadiene rubber or chloroprene rubber is suitable. The lower surface of the outsole 2 is formed with a contact surface that comes into contact with a road surface (ground, floor surface, etc.).

また、ソール１は、前足部から後足部までの足裏面を支持するミッドソール３を有している。このミッドソール３は、軟質の弾性材からなり、例えばエチレン－酢酸ビニル共重合体（ＥＶＡ）等の熱可塑性合成樹脂やその発泡体、ポリウレタン（ＰＵ）等の熱硬化性樹脂やその発泡体、ブタジエンラバーやクロロプレンラバー等のラバー素材やその発泡体などが適している。 The sole 1 also has a midsole 3 that supports the sole of the foot from the forefoot to the rearfoot. The midsole 3 is made of a soft elastic material, for example, a thermoplastic synthetic resin such as ethylene-vinyl acetate copolymer (EVA) or its foam, a thermosetting resin such as polyurethane (PU) or its foam, Rubber materials such as butadiene rubber and chloroprene rubber and their foams are suitable.

ミッドソール３は、その下部が接着剤などによってアウトソール２の上側に積層配置されている。ミッドソールの上部には、着用者の足の足裏面を支持する足裏支持部３ａが設けられている。また、ミッドソールの周縁部には、着用者の足を覆うアッパー４が設けられている（図１の仮想線を参照）。 The lower part of the midsole 3 is laminated on the upper side of the outsole 2 with an adhesive or the like. The upper portion of the midsole is provided with a sole support portion 3a that supports the sole of the wearer's foot. An upper 4 covering the wearer's foot is provided on the peripheral edge of the midsole (see the phantom lines in FIG. 1).

図１および図２に示すように、シューズＳは、衝撃緩衝部材１０を備えている。この衝撃緩衝部材１０は、上下方向の外力Ｆ（図６参照）がソール１に加わったときに生じる衝撃を緩衝しかつこの緩衝時に内部に蓄積されたひずみエネルギーを反発力に換えて該反発力を着用者の足に付与するためのものである。本実施形態において、衝撃緩衝部材１０は、ソール１（ミッドソール３）の後部側に配置されている。具体的に、衝撃緩衝部材１０は、ソール１において着用者の足の踵部に対応する位置に配設されている。 As shown in FIGS. 1 and 2, the shoe S has a shock absorbing member 10. As shown in FIG. This shock-absorbing member 10 absorbs the shock generated when an external force F (see FIG. 6) in the vertical direction is applied to the sole 1, and converts the strain energy accumulated inside during this shock-absorbing into a repulsive force. to the wearer's foot. In this embodiment, the shock absorbing member 10 is arranged on the rear side of the sole 1 (midsole 3). Specifically, the shock absorbing member 10 is arranged on the sole 1 at a position corresponding to the heel of the wearer's foot.

衝撃緩衝部材１０は、その外周部が平面視で略円形または多角形の環状となるように形成されている。以下の説明では、外周部を簡易的に表すために、各図における環状の破線を外周部１１として扱うものとする。また、各図の外周部１１は、各支持部材２０が上下方向の外力Ｆ（図６参照）を受ける前の状態を示すものとする。 The shock absorbing member 10 is formed such that its outer peripheral portion has a substantially circular or polygonal annular shape in a plan view. In the following description, the annular dashed line in each drawing is treated as the outer peripheral portion 11 in order to simply represent the outer peripheral portion. Also, the outer peripheral portion 11 in each figure shows the state before each support member 20 receives an external force F in the vertical direction (see FIG. 6).

図３に示すように、衝撃緩衝部材１０は、着用者の足を支持するための複数（図示例では６つ）の支持部材２０，２０，…を備えている。支持部材２０，２０，…は、外周部１１の周方向に沿って互いに間隔をあけて配置されている。図６および図７に示すように、各支持部材２０は、上下方向の外力Ｆを受けたときに外周部１１の外側方向に向かって弾性変形可能に構成されている。各支持部材２０は、例えばＰＥＢＡ（ポリエーテルブロックアミド）、ＰＡ（ポリアミド）またはＴＰＵ（熱可塑性ポリウレタン）等の樹脂材料が適している。 As shown in FIG. 3, the shock absorbing member 10 includes a plurality of (six in the illustrated example) support members 20, 20, . . . for supporting the wearer's feet. The support members 20 , 20 , . . . are spaced apart from each other along the circumferential direction of the outer peripheral portion 11 . As shown in FIGS. 6 and 7, each support member 20 is configured to be elastically deformable toward the outside of the outer peripheral portion 11 when receiving an external force F in the vertical direction. A resin material such as PEBA (polyether block amide), PA (polyamide) or TPU (thermoplastic polyurethane) is suitable for each support member 20 .

図３および図４に示すように、各支持部材２０は、路面側（ソール１の下側）に配置された略平板状の底板部２１と、底板部２１の上方に間隔をあけて配置された略平板状の天板部２２とを有している。また、底板部２１と天板部２２との上下間には、略板状の外壁部２３および内壁部２４が設けられている。外壁部２３および内壁部２４は、底板部２１および天板部２２と一体に形成されている。 As shown in FIGS. 3 and 4, each support member 20 includes a substantially flat plate-like bottom plate portion 21 disposed on the road surface side (under the sole 1), and a bottom plate portion 21 disposed above the bottom plate portion 21 with a space therebetween. and a substantially flat plate-shaped top plate portion 22 . A substantially plate-like outer wall portion 23 and inner wall portion 24 are provided between the bottom plate portion 21 and the top plate portion 22 . The outer wall portion 23 and the inner wall portion 24 are formed integrally with the bottom plate portion 21 and the top plate portion 22 .

外壁部２３は外周部１１側に配置されている一方、内壁部２４は外周部１１よりも内側の位置に配置されている。具体的に、外壁部２３および内壁部２４は、外周部１１の半径方向において互いに対向するように間隔をあけて配置されている。また、外壁部２３および内壁部２４は、側面視で各々の上下方向略中央部が外周部１１の外側方向に向かって突出するように湾曲形成されている。 The outer wall portion 23 is arranged on the outer peripheral portion 11 side, while the inner wall portion 24 is arranged at a position inside the outer peripheral portion 11 . Specifically, the outer wall portion 23 and the inner wall portion 24 are spaced apart so as to face each other in the radial direction of the outer peripheral portion 11 . Further, the outer wall portion 23 and the inner wall portion 24 are curved so that their respective vertical center portions protrude outward from the outer peripheral portion 11 when viewed from the side.

また、図３および図４に示すように、各支持部材２０は、円筒状の第１および第２管部２５，２６を有している。第１および第２管部２５，２６は、外壁部２３および内壁部２４の上下方向略中央の位置に配置されている。 Further, as shown in FIGS. 3 and 4, each support member 20 has cylindrical first and second tubular portions 25 and 26 . The first and second pipe portions 25 and 26 are arranged at approximately the center of the outer wall portion 23 and the inner wall portion 24 in the vertical direction.

第１管部２５は、外周部１１の周方向に沿って延びている。第１管部２５は、外壁部２３の上下方向略中央の位置で外壁部２３と一体に形成されている。第１管部２５の内部には、断面視略円形状の孔部２５ａが外周部１１の周方向に沿って貫通形成されている。 The first pipe portion 25 extends along the circumferential direction of the outer peripheral portion 11 . The first pipe portion 25 is formed integrally with the outer wall portion 23 at a substantially central position in the vertical direction of the outer wall portion 23 . Inside the first pipe portion 25 , a hole portion 25 a having a substantially circular cross-sectional shape is formed so as to pass through the outer peripheral portion 11 along the circumferential direction.

第２管部２６は、第１管部２５の長さ方向に直交しかつ外周部１１の半径方向内側に向かって延びている。第２管部２６は、外周部１１側の端部が第１管部２５と連通した状態で第１管部２５および内壁部２４と一体に形成されている。第２管部２６の内部には、断面視略円形状の孔部２６ａが外周部１１の半径方向に沿って貫通形成されている。 The second pipe portion 26 extends perpendicularly to the length direction of the first pipe portion 25 and radially inward of the outer peripheral portion 11 . The second pipe portion 26 is formed integrally with the first pipe portion 25 and the inner wall portion 24 in a state where the end on the outer peripheral portion 11 side communicates with the first pipe portion 25 . Inside the second pipe portion 26 , a hole portion 26 a having a substantially circular cross-sectional shape is formed through the outer peripheral portion 11 along the radial direction.

図１および図２に示すように、衝撃緩衝部材１０は、支持部材２０，２０，…の下側に配置され、隣り合う支持部材２０，２０，…に架け渡される受板部材３０をさらに備えている。具体的に、受板部材３０は、略板状に形成されていて、その上面が各支持部材２０の底板部２１下面に接着剤などにより固着されている。 As shown in FIGS. 1 and 2, the shock absorbing member 10 further includes a receiving plate member 30 arranged below the supporting members 20, 20, . ing. Specifically, the receiving plate member 30 is formed in a substantially plate shape, and the upper surface thereof is fixed to the lower surface of the bottom plate portion 21 of each supporting member 20 with an adhesive or the like.

次に、図１～図３に示すように、衝撃緩衝部材１０は、連結部材４０を備えている。連結部材４０は、例えば射出成形により一体に形成されている。 Next, as shown in FIGS. 1 to 3, the shock absorbing member 10 has a connecting member 40. As shown in FIG. The connecting member 40 is integrally formed by injection molding, for example.

図５～図７にも示すように、連結部材４０は、支持部材２０，２０同士の間に架け渡されていて、支持部材２０，２０同士を互いに連結している。また、連結部材４０は、外力Ｆ（図６参照）により各支持部材２０の弾性変形に応じて弾性変形可能となるように構成されている。具体的に、連結部材４０における材料の弾性域は、支持部材２０における材料の弾性域よりも大きくなるように構成されている。連結部材４０は、例えばＰＥＢＡ（ポリエーテルブロックアミド）、ＴＰＵ（熱可塑性ポリウレタン）等の樹脂材料や合成ゴム等のゴム材料が適している。 As also shown in FIGS. 5 to 7, the connecting member 40 spans between the support members 20, 20 to connect the support members 20, 20 to each other. Further, the connecting member 40 is configured to be elastically deformable according to the elastic deformation of each supporting member 20 by an external force F (see FIG. 6). Specifically, the elastic region of the material in the connecting member 40 is configured to be larger than the elastic region of the material in the support member 20 . The connecting member 40 is suitably made of, for example, a resin material such as PEBA (polyether block amide) or TPU (thermoplastic polyurethane), or a rubber material such as synthetic rubber.

連結部材４０は、第１連結部４１，４１，…および第２連結部４２，４２，…を有している。第１および第２連結部４１，４２の各々は、例えば断面視略円形の棒状に形成されている。 The connecting member 40 has first connecting portions 41, 41, . . . and second connecting portions 42, 42, . Each of the first and second connecting portions 41 and 42 is formed, for example, in a substantially circular rod shape in cross section.

第１連結部４１，４１，…は、隣り合う支持部材２０，２０同士の間で外周部１１の周方向に沿って延びていて、支持部材２０，２０に設けられた状態で支持部材２０，２０同士を連結している。具体的に、図５および図７に示すように、第１連結部４１は、両側端部４１ａ，４１ａが第１管部２５内に挿通された状態で支持部材２０に設けられている。 The first connecting portions 41, 41, . 20 are connected. Specifically, as shown in FIGS. 5 and 7 , the first connecting portion 41 is provided on the support member 20 with both side end portions 41 a , 41 a inserted into the first tube portion 25 .

また、第１連結部４１，４１，…は、平面視で略環状となるように一体に形成されている。具体的に、第１連結部４１は、側端部４１ａが第１管部２５内で隣り合う他方の第１連結部４１の側端部４１ａと連続した状態（すなわち、継ぎ目がない状態）で一体に形成されている。 Also, the first connecting portions 41, 41, . . . Specifically, the side end portion 41a of the first connecting portion 41 is connected to the side end portion 41a of the other adjacent first connecting portion 41 in the first pipe portion 25 (that is, in a seamless state). integrally formed.

第２連結部４２，４２，…は、外周部１１の周上から半径方向内側に向かって延びている。また、第２連結部４２，４２，…は、支持部材２０，２０，…に設けられている。具体的に、第２連結部４２は、外周部１１側に位置する外端部４２ａを含む部分が第２管部２６内に挿通された状態で支持部材２０に設けられている。外端部４２ａは、第１および第２管部２５，２６内で第１連結部４１の側端部４１ａと連続している。すなわち、各第２連結部４２は、各支持部材２０の第２管部２６内に挿通された状態で外端部４２ａと第１連結部４１の側端部４１ａとの継ぎ目がないように一体形成されている。 The second connecting portions 42 , 42 , . . . extend radially inward from the circumference of the outer peripheral portion 11 . Further, the second connecting portions 42, 42, . . . are provided on the supporting members 20, 20, . Specifically, the second connecting portion 42 is provided in the support member 20 in a state in which a portion including the outer end portion 42 a located on the outer peripheral portion 11 side is inserted into the second pipe portion 26 . The outer end portion 42 a is continuous with the side end portion 41 a of the first connecting portion 41 within the first and second pipe portions 25 and 26 . That is, each second connecting portion 42 is inserted into the second pipe portion 26 of each supporting member 20, and the outer end portion 42a and the side end portion 41a of the first connecting portion 41 are integrally formed so as to be seamless. formed.

第２連結部４２，４２，…は、外周部１１の内側で互いに連結されている。具体的に、第２連結部４２，４２，…は、外周部１１の内側に位置する内端部４２ｂ，４２ｂ，…が互いに連結されるように構成されている。本実施形態では、外周部１１の内側に平面視で略六角形の環状に形成された第３連結部４３が配設されていて、第３連結部４３の各頂点に対応する位置において第２連結部４２の内端部４２ｂが第３連結部４３と連続している。 The second connecting portions 42 , 42 , . . . are connected to each other inside the outer peripheral portion 11 . Specifically, the second connecting portions 42, 42, . . . are configured such that inner end portions 42b, 42b, . In the present embodiment, a third connecting portion 43 formed in a generally hexagonal annular shape in a plan view is disposed inside the outer peripheral portion 11 , and second connecting portions 43 are arranged at positions corresponding to respective vertices of the third connecting portion 43 . An inner end portion 42 b of the connecting portion 42 is continuous with the third connecting portion 43 .

このような構成により、連結部材４０は、各支持部材２０の第１および第２管部２５，２６内に挿通された状態で端部同士に継ぎ目がないように閉塞状に一体形成されている。 With such a configuration, the connecting member 40 is integrally formed in a closed shape so that the ends thereof are seamless while being inserted into the first and second pipe portions 25 and 26 of each supporting member 20 . .

そして、図６に示すように、衝撃緩衝部材１０に上下方向の外力Ｆが加わると、各支持部材２０における天板部２２が底板部２１に向かって押し下げられるとともに、外壁部２３および内壁部２４の各々の上下方向略中央部が外周部１１の外側方向に向かって屈曲するようになる。すなわち、支持部材２０は、上下方向の外力Ｆにより外壁部２３および内壁部２４が外周部１１の外側方向に向かって屈曲するように弾性変形する。このとき、外壁部２３および内壁部２４が屈曲するとともに、第１および第２管部２５，２６が外周部１１の外側方向に向かって移動するようになる。 As shown in FIG. 6, when an external force F in the vertical direction is applied to the shock absorbing member 10, the top plate portion 22 of each support member 20 is pushed down toward the bottom plate portion 21, and the outer wall portion 23 and the inner wall portion 24 are pushed down. is bent toward the outer side of the outer peripheral portion 11. That is, the support member 20 is elastically deformed by the external force F in the vertical direction such that the outer wall portion 23 and the inner wall portion 24 are bent toward the outside of the outer peripheral portion 11 . At this time, the outer wall portion 23 and the inner wall portion 24 are bent, and the first and second pipe portions 25 and 26 move toward the outside of the outer peripheral portion 11 .

図６および図７に示すように、第１連結部４１は、支持部材２０が外力Ｆを受けて弾性変形したときに、支持部材２０，２０同士の間で外周部１１の周方向に引っ張られる。具体的に、第１管部２５が外周部１１の半径方向外側に向かって移動するとともに、第１連結部４１において、両側端部４１ａ，４１ａが各支持部材２０の変形に応じて外周部１１の半径方向外側に向かって移動する。これにより、第１連結部４１は、その中途部が外周部１１の周方向において支持部材２０，２０同士の間で伸長するように弾性変形する。 As shown in FIGS. 6 and 7, the first connecting portion 41 is pulled in the circumferential direction of the outer peripheral portion 11 between the supporting members 20, 20 when the supporting member 20 receives an external force F and is elastically deformed. . Specifically, as the first pipe portion 25 moves radially outward of the outer peripheral portion 11 , both side end portions 41 a and 41 a of the first connecting portion 41 move toward the outer peripheral portion 11 according to the deformation of the support members 20 . move radially outward. As a result, the first connecting portion 41 is elastically deformed such that its intermediate portion extends between the support members 20 , 20 in the circumferential direction of the outer peripheral portion 11 .

一方、第２連結部４２は、各支持部材２０が外力Ｆを受けて弾性変形したときに、外周部１１の外側方向に向かって引っ張られる。具体的に、第２連結部４２は、外端部４２ａを含む中途部が第３連結部４３に連続する内端部４２ｂに対して第１および第２管部２５，２６外周部１１の半径方向外側に向かって移動するとともに、外周部１１の半径方向外側に向かって伸長するように弾性変形する。 On the other hand, the second connecting portion 42 is pulled toward the outside of the outer peripheral portion 11 when each support member 20 receives the external force F and is elastically deformed. Specifically, the second connecting portion 42 has an intermediate portion including the outer end portion 42a that is radially different from the inner end portion 42b that is continuous with the third connecting portion 43 so that the radius of the outer peripheral portion 11 of the first and second pipe portions 25 and 26 is greater than the inner end portion 42b. While moving outward in the direction, it elastically deforms so as to extend outward in the radial direction of the outer peripheral portion 11 .

（第１実施形態の作用効果）
以上のように、衝撃緩衝部材１０では、上下方向の外力Ｆにより各支持部材２０の外壁部２３および内壁部２４の弾性変形に応じて壁部（外壁部２３および内壁部２４）に設けられた第１および第２管部２５，２６が外周部１１の半径方向外側に移動するとともに、連結部材４０が第１および第２管部２５，２６内に挿通された状態で第１および第２管部２５，２６と同方向に移動する。そして、連結部材４０は各支持部材２０の第１および第２管部２５，２６内に挿通された状態で端部同士に継ぎ目がないように閉塞状に一体形成されている。このため、上下方向の外力Ｆにより各支持部材２０の外壁部２３および内壁部２４が弾性変形したとしても、連結部材４０を第１および第２管部２５，２６内から容易に外れないようになっている。すなわち、外力Ｆにより各支持部材２０の外壁部２３および内壁部２４が弾性変形したしても、その変形量の大小にかかわらず連結部材４０を各支持部材２０に対して安定的に保持することが可能となる。したがって、本発明の第１実施形態に係る衝撃緩衝部材１０では、外力Ｆの大小にかかわらず衝撃緩衝性および反発性を維持することができる。 (Action and effect of the first embodiment)
As described above, in the shock absorbing member 10, the wall portions (the outer wall portion 23 and the inner wall portion 24) are provided in accordance with the elastic deformation of the outer wall portion 23 and the inner wall portion 24 of each support member 20 due to the external force F in the vertical direction. While the first and second pipe portions 25 and 26 move radially outwardly of the outer peripheral portion 11, the first and second pipe portions 25 and 26 move in a state in which the connecting member 40 is inserted through the first and second pipe portions 25 and 26. It moves in the same direction as the parts 25 and 26. The connecting member 40 is inserted into the first and second pipe portions 25 and 26 of each supporting member 20 and integrally formed in a closed shape so that the ends are seamless. Therefore, even if the outer wall portion 23 and the inner wall portion 24 of each support member 20 are elastically deformed by the external force F in the vertical direction, the connecting member 40 is prevented from easily coming off the first and second pipe portions 25 and 26 . It's becoming That is, even if the outer wall portion 23 and the inner wall portion 24 of each support member 20 are elastically deformed by the external force F, the connecting member 40 can be stably held with respect to each support member 20 regardless of the amount of deformation. becomes possible. Therefore, the shock absorbing member 10 according to the first embodiment of the present invention can maintain shock absorbing properties and resilience regardless of the magnitude of the external force F.

また、連結部材４０における材料の弾性域は、支持部材２０における材料の弾性域よりも大きくなるように構成されていることから、各支持部材２０に上下方向の外力Ｆが付与されるとき、各支持部材２０の外壁部２３および内壁部２４には屈曲変形によるひずみが生じる一方、連結部材４０には各支持部材２０の第１および第２管部２５，２６が外周部１１の半径方向外側に移動することにより生じる引っ張り力によるひずみが生じる。このとき、連結部材４０には弾性域が比較的大きい（すなわち復元力の低下の小さい）材料を用いていることから、外力Ｆが作用しなくなったときに、連結部材４０が各支持部材２０よりも大きな速度で復元するようになる。その結果、連結部材４０の復元力が各支持部材２０の復元を助けることになる。これにより、支持部材２０のみで復元する場合と比較して、衝撃緩衝部材１０の反発性をより一層高めることができる。なお、一般的に樹脂材料は変形による大きなひずみが生じると復元力（復元速度）の低下が見られる。また、弾性域が小さな樹脂材料ほどその低下の度合いが大きくなる。 In addition, since the elastic region of the material of the connecting member 40 is configured to be larger than the elastic region of the material of the supporting member 20, when an external force F in the vertical direction is applied to each supporting member 20, each The outer wall portion 23 and the inner wall portion 24 of the support member 20 are strained due to bending deformation, while the first and second pipe portions 25 and 26 of each support member 20 are arranged radially outward of the outer peripheral portion 11 of the connecting member 40 . Distortion occurs due to the tensile force caused by the movement. At this time, since the connecting member 40 is made of a material having a relatively large elastic region (that is, a material with a small reduction in restoring force), when the external force F ceases to act, the connecting member 40 is more elastic than the support members 20. will also be restored at a great speed. As a result, the restoring force of the connecting member 40 helps each support member 20 to restore. As a result, the resilience of the shock-absorbing member 10 can be further enhanced as compared with the case where only the support member 20 is used for restoration. In general, resin materials exhibit a decrease in restoring force (restoring speed) when a large amount of strain occurs due to deformation. In addition, the smaller the elastic range of the resin material, the greater the degree of decrease.

また、支持部材２０が上下方向の外力Ｆを受けて弾性変形したときに第１および第２連結部４１，４２の各々がそれぞれの長さ方向に引っ張られることから、衝撃緩衝性の偏りが生じにくくなるとともに、支持部材２０，２０，…が過度に変形しないようになる。そして、支持部材２０，２０，…に外力Ｆが作用しなくなったときに、第１および第２連結部４１，４２の各々には、それぞれの長さ方向に引っ張られたときの伸長状態から収縮状態に戻ろうとする復元力が生じるとともに、第１および第２連結部４１，４２の各復元力が支持部材２０の復元力に寄与する。特に、第１連結部４１に生じる復元力が隣り合う支持部材２０，２０に対して相互に寄与する。これにより、衝撃緩衝部材１０の反発力がより一層向上する。したがって、衝撃緩衝部材１０は、より優れた衝撃緩衝性および反発性を発揮することができる。 Further, when the support member 20 receives an external force F in the vertical direction and is elastically deformed, each of the first and second connecting portions 41 and 42 is pulled in their respective length directions, resulting in uneven shock absorption. In addition, the support members 20, 20, . . . are prevented from being excessively deformed. Then, when the external force F no longer acts on the support members 20, 20, . A restoring force is generated to return to the state, and each restoring force of the first and second connecting portions 41 and 42 contributes to the restoring force of the support member 20 . In particular, the restoring force generated in the first connecting portion 41 mutually contributes to the adjacent support members 20 , 20 . Thereby, the repulsive force of the shock absorbing member 10 is further improved. Therefore, the shock-absorbing member 10 can exhibit better shock-absorbing properties and resilience.

また、第１連結部４１は、両側端部４１ａ，４１ａが第１管部２５内に挿通された状態で支持部材２０に設けられており、第２連結部４２は、外端部４２ａが第２管部２６内に挿通された状態で支持部材２０に設けられているため、第１および第２連結部４１，４２を、第１および第２管部２５，２６により支持部材２０から容易に外れないようになる。これにより、支持部材２０と第１および第２連結部４１，４２との連結力を高めることができる。 The first connecting portion 41 is provided on the support member 20 with both side end portions 41a, 41a inserted into the first tube portion 25, and the second connecting portion 42 has an outer end portion 42a. Since the support member 20 is provided in a state of being inserted into the two pipe portions 26, the first and second connecting portions 41 and 42 can be easily removed from the support member 20 by the first and second pipe portions 25 and 26. It becomes impossible to come off. Thereby, the connecting force between the support member 20 and the first and second connecting portions 41 and 42 can be increased.

また、受板部材３０により、上下方向の外力Ｆを支持部材２０，２０，…に対して略均等に作用させて、衝撃緩衝性の偏りを抑えることができる。 Further, by the receiving plate member 30, the external force F in the vertical direction can be applied to the support members 20, 20, .

さらに、衝撃緩衝部材１０を、ソール１において着用者の足の踵部に対応する位置に配設することにより、上記実施形態と同様の作用効果を、着用者の足の踵部に対応する位置で奏するシューズを得ることができる。 Furthermore, by arranging the shock absorbing member 10 in the sole 1 at a position corresponding to the heel of the wearer's foot, the same effects as those of the above embodiment can be obtained at the position corresponding to the heel of the wearer's foot. You can get shoes that play with.

［第１実施形態の変形例］
図８は、本発明の第１実施形態に係る衝撃緩衝部材１０の変形例を示す。図８に示すように、各支持部材２０において、底板部２１と天板部２２との上下間には、外壁部２３および第１管部２５が設けられている。外壁部２３および第１管部２５の各構成については、上記第１実施形態と同様であるため、その詳細を省略する。一方、この変形例の各支持部材２０には、上記第１実施形態で示した内壁部２４および第２管部２６が設けられていない。 [Modification of First Embodiment]
FIG. 8 shows a modification of the shock absorbing member 10 according to the first embodiment of the invention. As shown in FIG. 8 , in each support member 20 , an outer wall portion 23 and a first pipe portion 25 are provided between the bottom plate portion 21 and the top plate portion 22 . Since each configuration of the outer wall portion 23 and the first pipe portion 25 is the same as that of the first embodiment, details thereof will be omitted. On the other hand, each support member 20 of this modified example is not provided with the inner wall portion 24 and the second pipe portion 26 shown in the first embodiment.

また、この変形例の連結部材４０は、上記第１実施形態で示した第２連結部４２，４２，…および第３連結部４３を有しておらず、上記第１実施形態で示した第１連結部４１，４１，…のみで構成されている。この変形例の連結部材４０は、上記第１実施形態で示した第１連結部４１，４１，…の構成と同様であるため、その詳細を省略する。なお、この変形例では、衝撃緩衝部材１０が受板部材３０を備えていない形態を示したが、この形態に限られず、衝撃緩衝部材１０が受板部材３０を備えていてもよい。 Further, the connecting member 40 of this modified example does not have the second connecting portions 42, 42, . . . and the third connecting portion 43 shown in the first embodiment. It is composed of only one connecting portion 41, 41, . . . Since the connecting member 40 of this modified example has the same configuration as the first connecting portions 41, 41, . . . shown in the first embodiment, details thereof will be omitted. In this modified example, the shock absorbing member 10 does not include the receiving plate member 30 , but the shock absorbing member 10 may include the receiving plate member 30 .

以上のように、変形例に係る衝撃緩衝部材１０では、上下方向の外力により各支持部材２０の外壁部２３の弾性変形に応じて外壁部２３に設けられた第１管部２５が外周部１１の半径方向外側に移動するとともに、連結部材４０が第１管部２５，２５，…内に挿通された状態で第１管部２５，２５，…と同方向に移動する。そして、連結部材４０は第１管部２５，２５，…内に挿通された状態で端部同士に継ぎ目がないように閉塞状に一体形成されている。このため、上下方向の外力により各支持部材２０の外壁部２３が弾性変形したとしても、連結部材４０を第１管部２５，２５，…内から容易に外れないようになっている。すなわち、外力Ｆにより各支持部材２０の外壁部２３が弾性変形したしても、その変形量の大小にかかわらず連結部材４０を各支持部材２０に対して安定的に保持することが可能となる。したがって、この変形例に係る衝撃緩衝部材１０であっても、上記第１実施形態と同様に、上下方向の外力の大小にかかわらず衝撃緩衝性および反発性を維持することができる。 As described above, in the impact-absorbing member 10 according to the modification, the first pipe portion 25 provided on the outer wall portion 23 of each support member 20 is elastically deformed by an external force in the vertical direction, and the outer wall portion 25 of the outer wall portion 25 is displaced from the outer peripheral portion 11 . , and the connecting member 40 moves in the same direction as the first pipe portions 25, 25, . The connecting member 40 is integrally formed in a closed shape so that the ends thereof are seamless while being inserted into the first pipe portions 25, 25, . . . . Therefore, even if the outer wall portion 23 of each support member 20 is elastically deformed by an external force in the vertical direction, the connecting member 40 will not easily come off from the inside of the first pipe portions 25, 25, . That is, even if the outer wall portion 23 of each support member 20 is elastically deformed by the external force F, the connection member 40 can be stably held with respect to each support member 20 regardless of the amount of deformation. . Therefore, even with the shock absorbing member 10 according to this modified example, as in the first embodiment, it is possible to maintain the shock absorbing property and the resilience regardless of the magnitude of the external force in the vertical direction.

［第１実施形態におけるその他の実施形態］
上記第１実施形態では、衝撃緩衝部材１０を、ソール１において着用者の足の踵部に対応する位置に配設した形態を示したが、この形態に限られない。例えば、衝撃緩衝部材１０を、ソール１において着用者の足のＭＰ関節に対応する位置に配設した形態であってもよい。これにより、上記実施形態と同様の作用効果を、着用者の足のＭＰ関節に対応する位置で得ることができる。 [Other embodiments in the first embodiment]
In the above-described first embodiment, the shock absorbing member 10 is arranged in the sole 1 at a position corresponding to the heel of the wearer's foot, but the present invention is not limited to this form. For example, the shock absorbing member 10 may be arranged in the sole 1 at a position corresponding to the MP joint of the wearer's foot. This makes it possible to obtain the same effects as those of the above embodiment at positions corresponding to the MP joints of the wearer's foot.

また、上記第１実施形態に係る衝撃緩衝部材１０として、図示例で６つの支持部材２０，２０，…を備える形態を示したが、この形態に限られない。すなわち、衝撃緩衝部材１０としては、少なくとも２つ以上の支持部材２０，２０を備えていればよい。より好ましくは、外周部１１の周方向に沿って互いに間隔をあけて配置された少なくとも３つ以上の支持部材２０，２０，…を備えていればよい。 Also, as the shock absorbing member 10 according to the first embodiment, the illustrated example has shown a form including six support members 20, 20, . . . , but the present invention is not limited to this form. In other words, the shock absorbing member 10 may be provided with at least two supporting members 20,20. More preferably, at least three or more supporting members 20, 20, .

また、上記第１実施形態では、連結部材４０として第１連結部４１，４１，…および第２連結部４２，４２，…を含む形態を示したが、この形態に限られない。すなわち、連結部材４０としては、第１連結部４１，４１，…および第２連結部４２，４２，…のいずれか一方を有する形態であってもよい。この場合、支持部材２０には、第１および第２管部２５，２６のいずれか一方を形成すればよい。 In addition, in the first embodiment, the connection member 40 includes the first connection portions 41, 41, ... and the second connection portions 42, 42, ..., but the connection member 40 is not limited to this form. That is, the connecting member 40 may have one of the first connecting portions 41, 41, . . . and the second connecting portions 42, 42, . In this case, one of the first and second pipe portions 25 and 26 may be formed on the support member 20 .

また、上記第１実施形態では、第３連結部４３の各頂点４３ａに対応する位置に各第２連結部４２の内端部４２ｂが連続している形態を示したが、この形態に限られない。例えば、第３連結部４３を設けずに、第２連結部４２，４２，…の内端部４２ｂ，４２ｂ，…を直接的に連結させた形態であってもよい。 In addition, in the above-described first embodiment, the form in which the inner ends 42b of the second connecting parts 42 are continuous with the positions corresponding to the vertices 43a of the third connecting part 43 is shown, but the present invention is not limited to this form. do not have. For example, the inner end portions 42b, 42b, . . . of the second connecting portions 42, 42, .

また、上記第１実施形態では、受板部材３０を支持部材２０，２０，…の下側に設けた形態を示したが、この形態に限られない。例えば、受板部材３０を支持部材２０，２０，…の上側のみに設けた形態であってもよい。あるいは、受板部材３０，３０を支持部材２０，２０，…の上側および下側の双方に設けた形態であってもよい。さらには、受板部材３０を設けない形態であってもよい。 Further, in the first embodiment, the form in which the receiving plate member 30 is provided below the support members 20, 20, . . . is shown, but the form is not limited to this. For example, a form in which the receiving plate member 30 is provided only on the upper side of the support members 20, 20, . Alternatively, a configuration in which the receiving plate members 30, 30 are provided on both the upper side and the lower side of the support members 20, 20, . Furthermore, the form which does not provide the receiving plate member 30 may be sufficient.

［参考の実施形態１］
図９および図１０は、参考の実施形態１に係る衝撃緩衝部材１０を示す。この参考の実施形態１では、上記第１実施形態と比較して、支持部材２０および連結部材４０の構成が異なっている。なお、この参考の実施形態に係る衝撃緩衝部材１０の他の構成は、上記第１実施形態に係る衝撃緩衝部材１０の構成と同様である。このため、以下の説明では、図１～図７と同じ部分について同じ符号を付し、その詳細な説明を省略する。 [ Reference Embodiment 1 ]
9 and 10 show a shock absorbing member 10 according to Embodiment 1 for reference . In this reference embodiment 1 , the configurations of the supporting member 20 and the connecting member 40 are different from those of the first embodiment. Other configurations of the shock absorbing member 10 according to this reference embodiment are the same as those of the shock absorbing member 10 according to the first embodiment. Therefore, in the following description, the same parts as those in FIGS. 1 to 7 are denoted by the same reference numerals, and detailed description thereof will be omitted.

図９および図１０に示すように、参考の実施形態１に係る衝撃緩衝部材１０は、外周部１１が平面視で略円環状となるように形成されている。また、衝撃緩衝部材１０は、１つの支持部材２０を備えている。支持部材２０は、上記第１実施形態と同様に、底板部２１および天板部２２を有している。底板部２１および天板部２２の各々は、円板状に形成されている。 As shown in FIGS. 9 and 10, the shock absorbing member 10 according to the first embodiment of the reference is formed such that the outer peripheral portion 11 has a substantially annular shape in plan view. Also, the shock absorbing member 10 includes one support member 20 . The support member 20 has a bottom plate portion 21 and a top plate portion 22 as in the first embodiment. Each of bottom plate portion 21 and top plate portion 22 is formed in a disc shape.

底板部２１と天板部２２との上下間には、複数（図示例では３つ）の壁部２７ａ，２７ａ，…が設けられている。壁部２７ａ，２７ａ，…は、外周部１１の周方向において互いに間隔をあけて配置されている。各壁部２７ａは、底板部２１および天板部２２と一体に形成されている。各壁部２７ａは、各々の上下方向略中央部が衝撃緩衝部材１０の外側方向に向かって突出するように湾曲形成されている。 Between the bottom plate portion 21 and the top plate portion 22, a plurality of (three in the illustrated example) wall portions 27a, 27a, . The wall portions 27 a , 27 a , . . . are spaced from each other in the circumferential direction of the outer peripheral portion 11 . Each wall portion 27 a is formed integrally with the bottom plate portion 21 and the top plate portion 22 . Each wall portion 27a is curved such that the vertical central portion of each wall portion 27a protrudes toward the outside of the shock absorbing member 10. As shown in FIG.

支持部材２０は、複数（図示例では３つ）の管部２８ａ，２８ａ，…を有している。各管部２８ａは、各壁部２７ａの上下方向略中央の位置に配置されている。各管部２８ａは、外周部１１の周方向に沿って湾曲状に延びていて、各壁部２７ａの上下方向略中央の位置で各壁部２７ａと一体に形成されている。各管部２８ａの内部には、断面視略円形状の孔部２９ａが外周部１１の周方向に沿って貫通形成されている。 The support member 20 has a plurality of (three in the illustrated example) pipe portions 28a, 28a, . Each pipe portion 28a is arranged at a position substantially central in the vertical direction of each wall portion 27a. Each pipe portion 28a extends in a curved shape along the circumferential direction of the outer peripheral portion 11, and is formed integrally with each wall portion 27a at a substantially central position in the vertical direction of each wall portion 27a. Inside each tube portion 28a, a hole portion 29a having a substantially circular cross section is formed through the outer peripheral portion 11 along the circumferential direction.

連結部材４０は、隣り合う管部２８ａ，２８ａ同士の間で外周部１１の周方向に沿って延びている。具体的に、連結部材４０は、各管部２８ａの孔部２９ａを貫通した状態で各管部２８ａと一体成形されている。そして、連結部材４０は、管部２８ａ，２８ａ，…内に挿通された状態で端部同士に継ぎ目がないように閉塞状に形成されている。 The connecting member 40 extends along the circumferential direction of the outer peripheral portion 11 between the adjacent pipe portions 28a, 28a. Specifically, the connecting member 40 is formed integrally with each pipe portion 28a in a state of penetrating through the hole portion 29a of each pipe portion 28a. The connecting member 40 is formed in a closed shape so that the ends thereof are seamless when inserted into the pipe portions 28a, 28a, . . . .

この参考の実施形態１に係る衝撃緩衝部材１０では、上下方向の外力Ｆ（図９参照）により支持部材２０の壁部２７ａ，２７ａ，…の弾性変形に応じて管部２８ａ，２８ａ，…が外周部１１の半径方向外側に移動するとともに、連結部材４０が管部２８ａ，２８ａ，…内に挿通された状態で管部２８ａ，２８ａ，…と同方向に移動する。そして、連結部材４０は各管部２８ａの孔部２９ａ内に挿通された状態で端部同士に継ぎ目がないように閉塞状に一体形成されている。このため、上下方向の外力Ｆにより支持部材２０の各壁部２７ａが弾性変形したとしても、連結部材４０を管部２８ａ，２８ａ内から容易に外れないようになる。すなわち、外力Ｆにより支持部材２０の各壁部２７ａが弾性変形したしても、その変形量の大小にかかわらず連結部材４０を支持部材２０に対して安定的に保持することが可能となる。したがって、参考の実施形態１に係る衝撃緩衝部材１０であっても、上記第１実施形態と同様に、外力Ｆの大小にかかわらず衝撃緩衝性および反発性を維持することができる。 In the shock absorbing member 10 according to this reference embodiment 1 , the pipe portions 28a, 28a, . . . While moving radially outward of the outer peripheral portion 11, the connecting member 40 moves in the same direction as the pipe portions 28a, 28a, . The connecting member 40 is inserted into the hole 29a of each tube 28a and integrally formed in a closed shape so that the ends are seamless. Therefore, even if each wall portion 27a of the support member 20 is elastically deformed by the external force F in the vertical direction, the connecting member 40 will not be easily removed from the pipe portions 28a, 28a. That is, even if each wall portion 27a of the support member 20 is elastically deformed by the external force F, the connection member 40 can be stably held with respect to the support member 20 regardless of the amount of deformation. Therefore, even with the shock absorbing member 10 according to the reference embodiment 1 , it is possible to maintain shock absorbing properties and resilience regardless of the magnitude of the external force F, as in the first embodiment.

［参考の実施形態２］
図１１は、参考の実施形態２に係る衝撃緩衝部材１０を示す。この参考の実施形態２では、第１実施形態の変形例と比較して、連結部材４０の構成が一部異なっている。なお、この参考の実施形態に係る衝撃緩衝部材１０の他の構成は、第１実施形態の変形例に係る衝撃緩衝部材１０の構成と同様である。このため、以下の説明では、図８と同じ部分について同じ符号を付し、その詳細な説明を省略する。 [ Reference Embodiment 2 ]
FIG. 11 shows a shock absorbing member 10 according to Embodiment 2 of Reference . In this reference embodiment 2 , the configuration of the connecting member 40 is partially different from that of the modification of the first embodiment. Other configurations of the shock absorbing member 10 according to this reference embodiment are the same as those of the shock absorbing member 10 according to the modified example of the first embodiment. Therefore, in the following description, the same reference numerals are given to the same parts as in FIG. 8, and detailed description thereof will be omitted.

図１１に示すように、参考の実施形態２に係る衝撃緩衝部材１０において、連結部材４０は、その形状が上記第１実施形態の変形例で示した閉塞状の連結部材４０と異なるように構成されている。具体的に、連結部材４０は、上記第１実施形態の変形例で示した連結部材４０の一部が途切れた非閉塞状に形成されている。 As shown in FIG. 11, in the shock absorbing member 10 according to the second embodiment, the connecting member 40 is configured so that its shape is different from the closed connecting member 40 shown in the modified example of the first embodiment. It is Specifically, the connecting member 40 is formed in a non-closed shape in which a portion of the connecting member 40 shown in the modified example of the first embodiment is cut off.

連結部材４０の両端部には、抜け止め部５０，５０が形成されている。抜け止め部５０，５０は、連結部材４０の両端部側に位置する第１管部２５，２５の外側に配置されている。抜け止め部５０，５０は、各々が連結部材４０の周方向において互いに間隔をあけて対向するように配置されている。各抜け止め部５０は、各第１管部２５における孔部２５ａの内径よりも大きい外径を有している。 Retaining portions 50 , 50 are formed at both ends of the connecting member 40 . The retainer portions 50 , 50 are arranged outside the first tube portions 25 , 25 positioned on both end side portions of the connecting member 40 . The retaining portions 50 , 50 are arranged so as to face each other with a space therebetween in the circumferential direction of the connecting member 40 . Each retaining portion 50 has an outer diameter larger than the inner diameter of the hole portion 25 a in each first pipe portion 25 .

ここで、図１１中の左側に位置している抜け止め部５０は略球状に形成されている一方、図１１中の右側に位置している抜け止め部５０は略円盤状に形成されている。なお、抜け止め部５０，５０は、このような形状に限られず、種々の形状にすることが可能である。 Here, the retaining portion 50 located on the left side in FIG. 11 is formed in a substantially spherical shape, while the retaining portion 50 located on the right side in FIG. 11 is formed in a substantially disk shape. . It should be noted that the retainer portions 50, 50 are not limited to such shapes, and can be formed in various shapes.

以上のように、参考の実施形態２に係る衝撃緩衝部材１０では、連結部材４０の両端部に設けられた抜け止め部５０，５０により、非閉塞状の連結部材４０が第１管部２５，２５から抜けにくくなっている。このため、上下方向の外力により各支持部材２０の外壁部２３が弾性変形したとしても、連結部材４０が各第１管部２５内から容易に外れないようになり、上記弾性変形による変形量の大小にかかわらず連結部材４０を各支持部材２０に対して安定的に保持することが可能となる。したがって、参考の実施形態２に係る衝撃緩衝部材１０であっても、上下方向の外力の大小にかかわらず衝撃緩衝性および反発性を維持することができる。 As described above, in the shock- absorbing member 10 according to the second embodiment, the connecting member 40 in a non-closed state is secured to the first pipe portions 25 and 25 by the retaining portions 50 provided at both ends of the connecting member 40 . It is becoming difficult to escape from 25. Therefore, even if the outer wall portion 23 of each support member 20 is elastically deformed by an external force in the vertical direction, the connecting member 40 is not easily removed from the inside of each first pipe portion 25, and the amount of deformation due to the elastic deformation is reduced. The connecting member 40 can be stably held with respect to each supporting member 20 regardless of its size. Therefore, even the shock absorbing member 10 according to the second embodiment can maintain the shock absorbing property and the resilience regardless of the magnitude of the external force in the vertical direction.

［参考の実施形態３］
図１２～図１５は、参考の実施形態３に係る衝撃緩衝部材１０を示す。この参考の実施形態３では、第１実施形態と比較して、支持部材２０および連結部材４０の具体的構成が異なっている。なお、この参考の実施形態に係る衝撃緩衝部材１０の他の構成は、第１実施形態に係る衝撃緩衝部材１０の構成と同様である。このため、以下の説明では、図１～図７と同じ部分について同じ符号を付し、その詳細な説明を省略する。 [ Reference Embodiment 3 ]
12 to 15 show a shock absorbing member 10 according to Embodiment 3 of Reference . In this reference embodiment 3 , the specific configurations of the supporting member 20 and the connecting member 40 are different from those of the first embodiment. Other configurations of the shock absorbing member 10 according to this reference embodiment are the same as those of the shock absorbing member 10 according to the first embodiment. Therefore, in the following description, the same parts as those in FIGS. 1 to 7 are denoted by the same reference numerals, and detailed description thereof will be omitted.

図１３～図１５に示すように、参考の実施形態３に係る衝撃緩衝部材１０は、２つの支持部材２０，２０を備えている。支持部材２０，２０は、壁部２７ｂ，２７ｂ同士が互いに向き合うように配置されている。 As shown in FIGS. 13 to 15, the shock absorbing member 10 according to the third embodiment includes two support members 20,20 . The support members 20, 20 are arranged such that the wall portions 27b, 27b face each other.

各支持部材２０は、上記第１実施形態と同様に、底板部２１および天板部２２を有している。底板部２１と天板部２２との上下間には、１つの壁部２７ｂが設けられている。壁部２７ｂは、底板部２１および天板部２２と一体に形成されている。 Each support member 20 has a bottom plate portion 21 and a top plate portion 22 as in the first embodiment. One wall portion 27 b is provided between the bottom plate portion 21 and the top plate portion 22 . The wall portion 27 b is formed integrally with the bottom plate portion 21 and the top plate portion 22 .

壁部２７ｂは、上下方向略中央部が底板部２１および天板部２２の中央部から衝撃緩衝部材１０の外側方向に向かって突出するように湾曲形成されている。具体的に、図１３の左側に示した支持部材２０は、壁部２７ｂの上下方向略中央部が図１３の左方向に向かって突出するように配置されている。他方、図１３の右側に示した支持部材２０は、壁部２７ｂの上下方向略中央部が図１３の右方向に向かって突出するように配置されている。 The wall portion 27 b is curved such that the substantially center portion in the vertical direction protrudes from the center portions of the bottom plate portion 21 and the top plate portion 22 toward the outside of the shock absorbing member 10 . Specifically, the support member 20 shown on the left side of FIG. 13 is arranged such that the substantially central portion in the vertical direction of the wall portion 27b protrudes leftward in FIG. On the other hand, the support member 20 shown on the right side of FIG. 13 is arranged so that the substantially central portion in the vertical direction of the wall portion 27b protrudes rightward in FIG.

各支持部材２０は、１つの管部２８ｂを有している。管部２８ｂは、壁部２７ｂ，２７ｂ同士が向き合う方向（図１３の左右方向）に沿って延びている。管部２８ｂは、壁部２７ａの上下方向略中央の位置で壁部２７ｂと一体に形成されている。管部２８ｂの内部には、断面視略円形状の孔部２９ｂが管部２８ｂの長手方向に沿って貫通形成されている（図１４参照）。 Each support member 20 has one tube portion 28b. The pipe portion 28b extends along the direction in which the wall portions 27b, 27b face each other (horizontal direction in FIG. 13). The pipe portion 28b is formed integrally with the wall portion 27b at a position substantially central in the vertical direction of the wall portion 27a. Inside the pipe portion 28b, a hole portion 29b having a substantially circular cross section is formed through the pipe portion 28b along the longitudinal direction thereof (see FIG. 14).

連結部材４０は、支持部材２０，２０同士の間に架け渡され、支持部材２０，２０同士を互いに連結している。そして、連結部材４０は、上記第１実施形態で示した連結部材４０と異なり、管部２８ｂ，２８ｂ同士の間に亘って非閉塞状に形成されている。具体的に、連結部材４０は、各端部が各管部２８ｂの孔部２９ｂ内に挿通された状態で管部２８ｂ，２８ｂ同士の間に亘って直線状に延びている。 The connecting member 40 spans between the supporting members 20 and 20 and connects the supporting members 20 and 20 to each other. And unlike the connecting member 40 shown in the said 1st Embodiment, the connecting member 40 is formed in non-blocking shape between the pipe parts 28b and 28b. Specifically, the connecting member 40 extends linearly between the pipe portions 28b, 28b with each end being inserted into the hole 29b of each pipe portion 28b.

また、連結部材４０の両端部には、抜け止め部５０，５０が形成されている。各抜け止め部５０は、各管部２８ｂよりも外側の位置に配置されている。各抜け止め部５０は、各管部２８ｂの孔部２９ｂの内径よりも大きい外径を有する略球状に形成されている。なお、抜け止め部５０，５０の形状は、略球状に限られず、種々の形状にすることが可能である。 Also, retaining portions 50 , 50 are formed at both ends of the connecting member 40 . Each retaining portion 50 is arranged at a position outside each pipe portion 28b. Each retaining portion 50 is formed in a substantially spherical shape having an outer diameter larger than the inner diameter of the hole portion 29b of each pipe portion 28b. It should be noted that the shape of the retaining portions 50, 50 is not limited to the substantially spherical shape, and various shapes are possible.

以上のように、参考の実施形態３に係る衝撃緩衝部材１０では、連結部材４０の両端部に設けられた抜け止め部５０，５０により、非閉塞状の連結部材４０が管部２８ｂ，２８ｂから抜けにくくなっている。このため、上下方向の外力Ｆ（図１５参照）により各支持部材２０の壁部２７ｂが弾性変形したとしても、連結部材４０が各管部２８ｂ内から容易に外れないようになり、上記弾性変形による変形量の大小にかかわらず連結部材４０を各支持部材２０に対して安定的に保持することが可能となる。したがって、参考の実施形態３に係る衝撃緩衝部材１０であっても、外力Ｆの大小にかかわらず衝撃緩衝性および反発性を維持することができる。 As described above, in the shock- absorbing member 10 according to the third embodiment, the non-closed connecting member 40 is separated from the pipe portions 28b, 28b by the retaining portions 50, 50 provided at both ends of the connecting member 40. It is difficult to remove. Therefore, even if the wall portion 27b of each supporting member 20 is elastically deformed by an external force F (see FIG. 15) in the vertical direction, the connecting member 40 will not easily come off from the inside of each pipe portion 28b, and the above elastic deformation will occur. It is possible to stably hold the connecting member 40 with respect to each supporting member 20 regardless of the amount of deformation caused by the force. Therefore, even with the impact-absorbing member 10 according to the third embodiment, the impact-absorbing property and resilience can be maintained regardless of the magnitude of the external force F.

また、参考の実施形態３に係る衝撃緩衝部材１０では、壁部２７ｂの変形方向が連結部材４０の伸長方向と平行になっている。このため、所定の方向に対する衝撃緩衝性および反発性を集中的に高めることができる。 In addition, in the shock absorbing member 10 according to the third embodiment, the deformation direction of the wall portion 27b is parallel to the extension direction of the connecting member 40 . Therefore, it is possible to intensively improve the shock absorbing property and the repulsive property in a predetermined direction.

さらに、参考の実施形態３では、図１２に示すように、複数（図示例では３つ）の衝撃緩衝部材１０，１０，…がソール１の踵部に対応する位置に配置されかつ前後方向に互いに間隔をあけて配置されている。そして、各衝撃緩衝部材１０は、連結部材４０が足幅方向に沿って延びるように配置されている。これにより、参考の実施形態３に係る衝撃緩衝部材１０，１０，…を備えたシューズＳでは、例えば接地時に生じる衝撃が足の踵部に対応する位置で適切に抑制されるとともに、足幅方向に偏りが生じないように足の平衡感覚を安定的に保つことができる。 Further, in the reference embodiment 3 , as shown in FIG. 12, a plurality (three in the illustrated example) of shock absorbing members 10, 10, . They are spaced apart from each other. Each shock absorbing member 10 is arranged such that the connecting member 40 extends along the foot width direction. As a result, in the shoes S provided with the shock absorbing members 10 , 10, . It is possible to maintain a stable sense of balance of the foot so that there is no bias in the foot.

［参考の実施形態３の変形例］
図１６および図１７は、上記参考の実施形態３に係る衝撃緩衝部材１０の変形例を示す。図１６および図１７に示すように、この変形例に係る衝撃緩衝部材１０では、上記参考の実施形態３と比較して、２つの支持部材２０，２０がさらに追加されている。 [Modification of Reference Embodiment 3 ]
16 and 17 show a modification of the shock absorbing member 10 according to the above-described reference embodiment 3. FIG. As shown in FIGS. 16 and 17, in the shock absorbing member 10 according to this modified example, two support members 20, 20 are added as compared with the above-described reference embodiment 3. As shown in FIGS.

具体的に、一方の支持部材２０，２０（図１６の左側に位置する支持部材２０，２０）は、壁部２７ｂ，２７ｂの上下方向略中央部が図１６の左方向に向かって突出するように配置されている。これに対し、他方の支持部材２０，２０（図１６の右側に位置する支持部材２０，２０）は、壁部２７ｂ，２７ｂの上下方向略中央部が図１６の右方向に向かって突出するように配置されている。 Specifically, one of the support members 20, 20 (the support member 20, 20 positioned on the left side in FIG. 16) is arranged so that the substantially center portions in the vertical direction of the wall portions 27b, 27b protrude leftward in FIG. are placed in On the other hand, the other supporting members 20, 20 (supporting members 20, 20 positioned on the right side in FIG. 16) are arranged such that the vertical central portions of the wall portions 27b, 27b project rightward in FIG. are placed in

また、連結部材４０は、複数の抜け止め部５０，５０，…を有している。抜け止め部５０は、各管部２８ｂよりも外側の位置に配置されている。この抜け止め部５０，５０，…により、非閉塞状の連結部材４０が管部２８ｂ，２８ｂ，…から抜けにくくなる。 Further, the connecting member 40 has a plurality of retaining portions 50, 50, . The retaining portion 50 is arranged at a position outside each pipe portion 28b. These retaining portions 50, 50, .

図１７に示すように、上記一方の支持部材２０，２０は、各々の壁部２７ｂが上下方向の外力Ｆを受けたときに連結部材４０の長手方向に沿って図１７の左方向に屈曲変形するようになる。これに対し、上記他方の支持部材２０，２０は、各々の壁部２７ｂ，２７ｂが上下方向の外力Ｆを受けたときに連結部材４０の長手方向に沿って図１７の右方向に屈曲変形するようになる。そして、連結部材４０は、上下方向の外力Ｆを受けたときに、連結部材４０の中央部を境目として左右それぞれに設けられた支持部材２０，２０の壁部２７ｂ、２７ｂにより左右方向に引っ張られる。その結果、連結部材４０は、左右方向に伸長するようになる。以上のような複数の支持部材２０，２０，…の配置構成により、この変形例に係る衝撃緩衝部材１０では、所定の方向に対する衝撃緩衝性および反発性をより一層高めることができる。 As shown in FIG. 17, one of the support members 20, 20 is bent leftward in FIG. will come to On the other hand, the other supporting members 20, 20 bend and deform along the longitudinal direction of the connecting member 40 to the right in FIG. become. When the connecting member 40 receives an external force F in the vertical direction, the connecting member 40 is pulled in the left-right direction by the wall portions 27b, 27b of the supporting members 20, 20 provided on the left and right sides with the central portion of the connecting member 40 as a boundary. . As a result, the connecting member 40 extends in the left-right direction. With the arrangement configuration of the plurality of support members 20, 20, .

［参考の実施形態４］
図１８～図２０は、参考の実施形態４に係る衝撃緩衝部材１０を示す。この参考の実施形態４では、参考の実施形態３と比較して、支持部材２０および連結部材４０の構成が異なっている。特に、参考の実施形態４では、外力を受けたときに連結部材４０が変形する方向が参考の実施形態３と異なっている。なお、この参考の実施形態に係る衝撃緩衝部材１０の他の構成は、参考の実施形態３に係る衝撃緩衝部材１０の構成と同様である。このため、以下の説明では、図１２～図１５と同じ部分について同じ符号を付し、その詳細な説明を省略する。 [ Reference Embodiment 4 ]
18 to 20 show a shock absorbing member 10 according to Embodiment 4 of Reference . In this fourth reference embodiment, the configurations of the support member 20 and the connecting member 40 are different from those of the third reference embodiment. In particular, the fourth embodiment differs from the third embodiment in the direction in which the connecting member 40 deforms when receiving an external force. Other configurations of the shock absorbing member 10 according to this reference embodiment are the same as those of the shock absorbing member 10 according to the third reference embodiment. Therefore, in the following description, the same parts as those in FIGS. 12 to 15 are denoted by the same reference numerals, and detailed description thereof will be omitted.

図１８～図２０に示すように、参考の実施形態４に係る衝撃緩衝部材１０は、２つの支持部材２０，２０を備えている。各支持部材２０は、上記参考の実施形態３と同様に、底板部２１および天板部２２を有している。 As shown in FIGS. 18 to 20, the shock absorbing member 10 according to the fourth embodiment includes two support members 20,20 . Each support member 20 has a bottom plate portion 21 and a top plate portion 22 in the same manner as in the third embodiment .

図１８に示すように、一方の支持部材２０（図１８中の手前側に示した支持部材２０）において、底板部２１と天板部２２との上下間には、壁部２７ｃ，２７ｃが設けられている。壁部２７ｃ，２７ｃは、底板部２１および天板部２２における両短辺側に配置されている。また、壁部２７ｃ，２７ｃは、図１８の左右方向で互いに向き合うように配置されている。壁部２７ｃ，２７ｃは、底板部２１および天板部２２の両短辺側で底板部２１および天板部２２と一体に形成されている。各壁部２７ｃは、上下方向略中央部が底板部２１および天板部２２の短辺側の端部から左右方向中央に向かって凹陥するように湾曲形成されている。 As shown in FIG. 18, wall portions 27c, 27c are provided between the bottom plate portion 21 and the top plate portion 22 in one support member 20 (the support member 20 shown on the front side in FIG. 18). It is The wall portions 27c, 27c are arranged on both short sides of the bottom plate portion 21 and the top plate portion 22, respectively. The walls 27c, 27c are arranged so as to face each other in the horizontal direction of FIG. The wall portions 27c, 27c are formed integrally with the bottom plate portion 21 and the top plate portion 22 on both short sides of the bottom plate portion 21 and the top plate portion 22, respectively. Each wall portion 27c is curved such that a substantially central portion in the vertical direction is recessed from the ends of the short sides of the bottom plate portion 21 and the top plate portion 22 toward the center in the horizontal direction.

上記一方の支持部材２０は、一対の管部２８ｃ，２８ｃを有している。一対の管部２８ｃ，２８ｃは、底板部２１および天板部２２の短辺に平行な方向に沿って互いに平行に延びている。各管部２８ｃは、各壁部２７ｃにおける内側面の上下方向略中央に配置されていて、各壁部２７ｃと一体に形成されている。各管部２８ｃの内部には、断面視略円形状の孔部２９ｃが底板部２１および天板部２２の短辺と平行な方向に沿って貫通形成されている（図１８参照）。 The one support member 20 has a pair of pipe portions 28c, 28c. The pair of pipe portions 28 c , 28 c extends parallel to each other along the direction parallel to the short sides of the bottom plate portion 21 and the top plate portion 22 . Each pipe portion 28c is disposed substantially in the vertical center of the inner surface of each wall portion 27c and formed integrally with each wall portion 27c. Inside each tube portion 28c, a hole portion 29c having a substantially circular cross-sectional view is formed through the hole portion 29c along a direction parallel to the short sides of the bottom plate portion 21 and the top plate portion 22 (see FIG. 18).

また、他方の支持部材２０（図１８中の奥側に示した支持部材２０）において、底板部２１と天板部２２との上下間には、壁部２７ｄ，２７ｄが設けられている。壁部２７ｄ，２７ｄは、底板部２１および天板部２２の両短辺側に配置されている。また、壁部２７ｄ，２７ｄは、図１８の左右方向で互いに向き合うように配置されている。壁部２７ｄ，２７ｄは、底板部２１および天板部２２の両短辺側で底板部２１および天板部２２と一体に形成されている。各壁部２７ｄは、上下方向略中央部が底板部２１および天板部２２の短辺側の端部から左右方向外側に向かって突出するように湾曲形成されている。 Wall portions 27d, 27d are provided between the bottom plate portion 21 and the top plate portion 22 of the other support member 20 (the support member 20 shown on the far side in FIG. 18). The wall portions 27d, 27d are arranged on both short sides of the bottom plate portion 21 and the top plate portion 22, respectively. The wall portions 27d, 27d are arranged so as to face each other in the horizontal direction of FIG. The wall portions 27d, 27d are formed integrally with the bottom plate portion 21 and the top plate portion 22 on both short sides of the bottom plate portion 21 and the top plate portion 22, respectively. Each wall portion 27d is curved such that a substantially central portion in the vertical direction protrudes outward in the left-right direction from the ends of the short sides of the bottom plate portion 21 and the top plate portion 22 .

上記他方の支持部材２０は、一対の管部２８ｄ，２８ｄを有している。一対の管部２８ｄ，２８ｄは、底板部２１および天板部２２の短辺方向に沿って互いに平行に延びている。各管部２８ｄは、各壁部２７ｄにおける外側面の上下方向略中央に配置されていて、各壁部２７ｄと一体に形成されている。各管部２８ｄの内部には、断面視略円形状の孔部２９ｄが底板部２１および天板部２２の短辺と平行な方向に沿って貫通形成されている（図１８参照）。 The other support member 20 has a pair of pipe portions 28d, 28d. The pair of pipe portions 28 d and 28 d extend parallel to each other along the short side directions of the bottom plate portion 21 and the top plate portion 22 . Each pipe portion 28d is disposed substantially in the vertical center of the outer surface of each wall portion 27d and formed integrally with each wall portion 27d. Inside each tube portion 28d, a hole portion 29d having a substantially circular cross-sectional view is formed through in a direction parallel to the short sides of the bottom plate portion 21 and the top plate portion 22 (see FIG. 18).

参考の実施形態４に係る衝撃緩衝部材１０は、２つの連結部材４０，４０を備えている。各連結部材４０は、支持部材２０，２０同士の間に架け渡され、支持部材２０，２０同士を互いに連結している。各連結部材４０は、管部２８ｃ，２８ｄ同士の間に亘って非閉塞状になっている。具体的に、各連結部材４０は、管部２８ｃの孔部２９ｃ内および管部２８ｄの孔部２９ｄ内に挿通された状態で管部２８ｃ，２８ｄ同士の間に亘って直線状に延びている。 The shock absorbing member 10 according to the fourth reference embodiment includes two connecting members 40 , 40 . Each connecting member 40 spans between the supporting members 20, 20 and connects the supporting members 20, 20 to each other. Each connecting member 40 is in a non-blocking shape between the pipe portions 28c and 28d. Specifically, each connecting member 40 extends linearly between the pipe portions 28c and 28d while being inserted into the hole portion 29c of the pipe portion 28c and the hole portion 29d of the pipe portion 28d. .

また、各連結部材４０の両端部には、抜け止め部５０，５０が形成されている。図１８の手前側に形成された各抜け止め部５０は、各管部２８ｃよりも外側の位置に配置されている。また、図１８の奥側に形成された各抜け止め部５０は、各管部２８ｄよりも外側の位置に配置されている。各抜け止め部５０は、管部２８ｃの孔部２９ｃ内および管部２８ｄの孔部２９ｄの内径よりも大きい外径を有する略球状に形成されている。なお、抜け止め部５０，５０は、略球状に限られず、種々の形状にすることが可能である。 Also, retaining portions 50 , 50 are formed at both ends of each connecting member 40 . Each retaining portion 50 formed on the front side of FIG. 18 is arranged at a position outside each pipe portion 28c. Further, each retaining portion 50 formed on the back side in FIG. 18 is arranged at a position outside each pipe portion 28d. Each retaining portion 50 is formed in a substantially spherical shape having an outer diameter larger than the inner diameter of the hole 29c of the tube portion 28c and the hole 29d of the tube portion 28d. It should be noted that the retaining portions 50, 50 are not limited to having a substantially spherical shape, and may have various shapes.

そして、図１９および図２０に示すように、上記一方の支持部材２０は、各々の壁部２７ｃ，２７ｃが上下方向の外力を受けたときに、管部２８ｃ、２８ｃが延びる方向と交差する方向であって図１９および図２０の左右方向内側に向かって屈曲変形するようになる。これに対し、上記他方の支持部材２０は、各々の壁部２７ｄ，２７ｄが上下方向の外力を受けたときに、管部２８ｄ、２８ｄが延びる方向と交差する方向であって図１９および図２０の左右方向外側に向かって屈曲変形するようになる。すなわち、各連結部材４０は、上下方向の外力を受けたときに、中間部が支持部材２０，２０の壁部２７ｃ、２７ｄにより管部２８ｃ、２８ｄが延びる方向と交差する方向に剪断変形するように構成されている。 As shown in FIGS. 19 and 20, the one support member 20 moves in a direction intersecting with the extending direction of the tube portions 28c, 28c when the wall portions 27c, 27c receive an external force in the vertical direction. , and bends and deforms toward the inside in the left-right direction of FIGS. 19 and 20 . 19 and 20, the other support member 20 extends in a direction intersecting the extending direction of the tube portions 28d, 28d when the wall portions 27d, 27d receive an external force in the vertical direction. It bends and deforms toward the outside in the left-right direction. That is, when each connecting member 40 receives an external force in the vertical direction, the intermediate portion is sheared by the wall portions 27c and 27d of the supporting members 20 and 20 in a direction intersecting the extending direction of the tube portions 28c and 28d. is configured to

以上のように、参考の実施形態４に係る衝撃緩衝部材１０では、各連結部材４０の両端部に設けられた抜け止め部５０，５０により、非閉塞状の各連結部材４０が管部２８ｃおよび管部２８ｄから抜けにくくなっている。このため、図２０に示すように、上下方向の外力により壁部２７ｃ，２７ｃおよび壁部２７ｄ，２７ｄが弾性変形したとしても、各連結部材４０が管部２８ｃおよび管部２８ｄ内から容易に外れないようになり、上記弾性変形による変形量の大小にかかわらず連結部材４０，４０を支持部材２０，２０に対して安定的に保持することが可能となる。したがって、参考の実施形態４に係る衝撃緩衝部材１０であっても、上記参考の実施形態３と同様に、上下方向の外力の大小にかかわらず衝撃緩衝性および反発性を維持することができる。 As described above, in the impact-absorbing member 10 according to the fourth embodiment , the non-blocking connecting members 40 are secured to the pipe portions 28c and 28c by the retaining portions 50, 50 provided at both ends of the connecting members 40. It is difficult to come off from the pipe portion 28d. Therefore, as shown in FIG. 20, even if the wall portions 27c, 27c and the wall portions 27d, 27d are elastically deformed by an external force in the vertical direction, the connecting members 40 can be easily removed from the pipe portions 28c and 28d. Therefore, the connecting members 40, 40 can be stably held with respect to the supporting members 20, 20 regardless of the amount of deformation caused by the elastic deformation. Therefore, even with the shock absorbing member 10 according to the fourth embodiment, as in the third embodiment, it is possible to maintain shock absorbing properties and resilience regardless of the magnitude of the external force in the vertical direction.

［参考の実施形態５］
図２１～図２３は、参考の実施形態５に係る衝撃緩衝部材１０を示す。この参考の実施形態５では、上記参考の実施形態４で示した支持部材２０の構成が一部異なっている。なお、この参考の実施形態に係る衝撃緩衝部材１０の他の構成は、参考の実施形態４に係る衝撃緩衝部材１０の構成と同様である。このため、以下の説明では、図１８～図２０と同じ部分について同じ符号を付し、その詳細な説明を省略する。 [ Reference Embodiment 5 ]
21 to 23 show a shock absorbing member 10 according to a fifth embodiment of reference . In this fifth embodiment , the configuration of the support member 20 shown in the fourth embodiment is partially different. Other configurations of the shock absorbing member 10 according to this reference embodiment are the same as those of the shock absorbing member 10 according to the fourth reference embodiment. Therefore, in the following description, the same parts as in FIGS. 18 to 20 are denoted by the same reference numerals, and detailed description thereof will be omitted.

図２１に示すように、参考の実施形態５に係る衝撃緩衝部材１０には、上記参考の実施形態４で示した壁部２７ｃおよび管部２８ｃを有する支持部材２０，２０が設けられていない。すなわち、参考の実施形態５に係る衝撃緩衝部材１０では、上記参考の実施形態４で示した壁部２７ｄおよび管部２８ｄを有する支持部材２０，２０，…のみで構成されている。 As shown in FIG. 21, the shock absorbing member 10 according to the fifth embodiment is not provided with the supporting members 20, 20 having the wall portion 27c and the pipe portion 28c shown in the fourth embodiment. That is, the shock absorbing member 10 according to the fifth embodiment of the reference is composed only of the support members 20, 20, .

具体的に、連結部材４０，４０の両端部には、上記参考の実施形態４で示した壁部２７ｄ，２７ｄおよび管部２８ｄ，２８ｄを有する支持部材２０，２０が設けられている。また、各連結部材４０の中間部には、壁部２７ｄ，２７ｄおよび片方の壁部２７ｄのみに一体形成された管部２８ｄを有する支持部材２０が連結されている。すなわち、各連結部材４０は、管部２８ｄ，２８ｄ，…の孔部２９ｄ，２９ｄ，…内に挿通された状態で管部２８ｄ，２８ｄ同士の間に亘って直線状に延びている。 Specifically, at both ends of the connecting members 40, 40, the support members 20, 20 having the wall portions 27d, 27d and the tube portions 28d, 28d shown in the fourth embodiment are provided. In addition, a support member 20 having wall portions 27d, 27d and a pipe portion 28d integrally formed only with one wall portion 27d is connected to an intermediate portion of each connecting member 40. As shown in FIG. That is, each connecting member 40 is inserted into the holes 29d, 29d, . . . of the pipe portions 28d, 28d, .

図２２および図２３に示すように、連結部材４０，４０の両端部に連結された支持部材２０，２０は、各々の壁部２７ｄ，２７ｄが上下方向の外力を受けたときに管部２８ｄ、２８ｄが延びる方向と交差する図２３の左右方向外側に向かって屈曲変形するようになる。これにより、連結部材４０，４０は、各々の両端部が左右方向で互いに離反するように変形する。 As shown in FIGS. 22 and 23, the support members 20, 20 connected to both end portions of the connection members 40, 40, when the respective wall portions 27d, 27d receive an external force in the vertical direction, the pipe portion 28d, 28d, and bends toward the outside in the left-right direction of FIG. As a result, the connecting members 40, 40 are deformed such that their respective ends are separated from each other in the left-right direction.

これに対し、連結部材４０，４０の中間部に連結された支持部材２０，２０は、各々の壁部２７ｄ，２７ｄが上下方向の外力を受けたときに左右方向外側に向かって屈曲変形するようになる。これにより、連結部材４０，４０は、各々の中間部が左右方向で互いに接近するように変形する。 On the other hand, the supporting members 20, 20 connected to the intermediate portions of the connecting members 40, 40 are bent outward in the left-right direction when the respective wall portions 27d, 27d receive an external force in the vertical direction. become. As a result, the connecting members 40, 40 are deformed so that their intermediate portions approach each other in the left-right direction.

以上のように、各連結部材４０は、上下方向の外力を受けると両端部および中間部の各々の変形方向が互いに異なることから、管部２８ｄ、２８ｄが延びる方向と交差する方向（図２３の左右方向）に剪断変形するようになる。これにより、参考の実施形態５に係る衝撃緩衝部材１０であっても、上記参考の実施形態４と同様に、上下方向の外力の大小にかかわらず衝撃緩衝性および反発性を維持することができる。 As described above, when each connecting member 40 receives an external force in the vertical direction, the deformation directions of the both end portions and the intermediate portion are different from each other. lateral direction). As a result, even the shock absorbing member 10 according to the fifth embodiment can maintain shock absorbing properties and resilience regardless of the magnitude of the external force in the vertical direction, as in the fourth embodiment. .

［参考の実施形態５の変形例］
図２４～図２６は、上記参考の実施形態５に係る衝撃緩衝部材１０の変形例を示す。図２４～図２６に示すように、この変形例に係る衝撃緩衝部材１０では、上記参考の実施形態５で示した支持部材２０，２０，…および連結部材４０，４０，…がシューズＳのソール１において着用者の足のＭＰ関節の位置を含む前足部領域に配設されている。これにより、前足部領域で衝撃緩衝性および反発性を発揮させることができる。 [Modification of Reference Embodiment 5 ]
24 to 26 show modifications of the shock absorbing member 10 according to Embodiment 5 of the above reference . 24 to 26, in the shock absorbing member 10 according to this modification , the supporting members 20, 20, . . . and the connecting members 40, 40, . 1 in the forefoot region including the location of the MP joint of the wearer's foot. This allows the forefoot region to exhibit impact cushioning and resilience.

また、この変形例に係る衝撃緩衝部材１０は、支持部材２０，２０，…が連結部材４０，４０，…を介して前後方向および足幅方向に整列した状態となるように組み合わされている。そして、連結部材４０，４０，…は、その長手方向がシューズＳの足幅方向に沿うように配置されている。これにより、支持部材２０，２０，…が足幅方向に延びる各連結部材４０を回動軸として上下回動するようになる。その結果、シューズＳの前足部領域に配置した衝撃緩衝部材１０を、例えば歩行時または走行時におけるＭＰ関節の動作に追従させることができる。 In addition, the shock absorbing member 10 according to this modification is combined so that the support members 20, 20, ... are aligned in the front-rear direction and the foot width direction through the connecting members 40, 40, .... The connection members 40, 40, . . . As a result, the support members 20, 20, . As a result, the shock absorbing member 10 arranged in the forefoot region of the shoe S can follow the movement of the MP joints during walking or running, for example.

［参考の実施形態６］
図２７～図３０は、参考の実施形態６に係る衝撃緩衝部材１０を示す。この参考の実施形態６では、参考の実施形態３と比較して、支持部材２０および連結部材４０の構成が異なっている。特に、支持部材２０に設けられた管部の形状および連結部材４０の形状が参考の実施形態３で示したものと異なっている。なお、この参考の実施形態に係る衝撃緩衝部材１０の他の構成は、参考の実施形態３に係る衝撃緩衝部材１０の構成と同様である。このため、以下の説明では、図１２～図１５と同じ部分について同じ符号を付し、その詳細な説明を省略する。 [ Reference Embodiment 6 ]
27 to 30 show the shock absorbing member 10 according to Embodiment 6 of Reference . In this sixth reference embodiment, the configurations of the support member 20 and the connecting member 40 are different from those of the third reference embodiment. In particular, the shape of the tube portion provided in the support member 20 and the shape of the connecting member 40 are different from those shown in the third embodiment . Other configurations of the shock absorbing member 10 according to this reference embodiment are the same as those of the shock absorbing member 10 according to the third reference embodiment. Therefore, in the following description, the same parts as those in FIGS. 12 to 15 are denoted by the same reference numerals, and detailed description thereof will be omitted.

図２７に示すように、参考の実施形態６に係る衝撃緩衝部材１０は、３つの支持部材２０，２０，…を備えている。各支持部材２０は、上記参考の実施形態３と同様に、底板部２１および天板部２２を有している。各支持部材２０において、底板部２１と天板部２２との上下間には、１つの壁部２７ｅが設けられている。壁部２７ｅは、底板部２１および天板部２２と一体に形成されている。 As shown in FIG. 27, the shock absorbing member 10 according to the sixth reference embodiment includes three support members 20, 20, . Each support member 20 has a bottom plate portion 21 and a top plate portion 22 in the same manner as in the third embodiment . In each support member 20 , one wall portion 27 e is provided between the bottom plate portion 21 and the top plate portion 22 . The wall portion 27 e is formed integrally with the bottom plate portion 21 and the top plate portion 22 .

図２７に示すように、一方の支持部材２０（図２７中の手前側に示した支持部材２０）の壁部２７ｅは、上下方向略中央部が底板部２１および天板部２２の中央部から図２７の手前側に向かって突出するように湾曲形成されている。また、他方の支持部材２０，２０（図２７中の奥側に示した支持部材２０，２０）の壁部２７ｅ，２７ｅは、上下方向略中央部が底板部２１および天板部２２の中央部から図２７の奥側に向かって突出するように湾曲形成されている。 As shown in FIG. 27, a wall portion 27e of one of the support members 20 (the support member 20 shown on the near side in FIG. 27) has a substantially center portion in the vertical direction that extends from the center portions of the bottom plate portion 21 and the top plate portion 22. As shown in FIG. It is curved so as to protrude toward the front side of FIG. Wall portions 27e, 27e of the other supporting members 20, 20 (supporting members 20, 20 shown on the far side in FIG. 27) have substantially vertically central portions that are central portions of the bottom plate portion 21 and the top plate portion 22, respectively. 27 so as to protrude toward the back side of FIG.

各支持部材２０は、１つの管部２８ｅを有している。管部２８ｅは、壁部２７ｅにおける内側面の上下方向略中央に配置されている。そして、管部２８ｅは、その中間位置に形成された折れ曲がり部から各端部に向かって互いに異なる方向に分岐している。また、管部２８ｅは、平面視で略Ｖ字状に形成されていて、折れ曲がり部が壁部２７ｅ内側面の上下方向略中央に当接した状態で壁部２７ｅと一体に形成されている。図２８に示すように、管部２８ｅの内部には、断面視略円形状の孔部２９ｅが管部２８ｅの長手方向に沿って貫通形成されている。 Each support member 20 has one tube portion 28e. The pipe portion 28e is arranged substantially in the vertical center of the inner surface of the wall portion 27e. The pipe portion 28e is branched in different directions toward each end portion from a bent portion formed at an intermediate position thereof. Further, the tube portion 28e is formed in a substantially V shape in a plan view, and is formed integrally with the wall portion 27e in a state in which the bent portion is in contact with the center of the inner surface of the wall portion 27e in the vertical direction. As shown in FIG. 28, a hole 29e having a substantially circular cross section is formed through the tube portion 28e along the longitudinal direction of the tube portion 28e.

参考の実施形態６に係る衝撃緩衝部材１０は、１つの連結部材４０を備えている。連結部材４０は、支持部材２０，２０同士の間に架け渡され、支持部材２０，２０同士を互いに連結している。そして、連結部材４０は、管部２８ｅ，２８ｅ同士の間に亘って非閉塞状になっている。さらに、連結部材４０は、各支持部材２０における管部２８ｅの孔部２９ｅ内に挿通された状態で管部２８ｅ，２８ｅ同士の間に亘って屈曲形成されている。 The shock absorbing member 10 according to Embodiment 6 of Reference includes one connecting member 40 . The connecting member 40 spans between the support members 20, 20 and connects the support members 20, 20 to each other. The connecting member 40 is in a non-blocking state between the pipe portions 28e, 28e. Further, the connecting member 40 is bent between the pipe portions 28e, 28e in a state of being inserted into the hole portion 29e of the pipe portion 28e of each support member 20. As shown in FIG.

連結部材４０の両端部には、抜け止め部５０，５０が形成されている。各抜け止め部５０は、図２７の奥側に配置された各支持部材２０の各管部２８ｅに設けられている。各抜け止め部５０は、管部２８ｅの孔部２９ｅの内径よりも大きい外径を有する略球状に形成されている。なお、抜け止め部５０，５０は、略球状に限られず、種々の形状にすることが可能である。 Retaining portions 50 , 50 are formed at both ends of the connecting member 40 . Each retaining portion 50 is provided on each tube portion 28e of each support member 20 arranged on the back side in FIG. Each retaining portion 50 is formed in a substantially spherical shape having an outer diameter larger than the inner diameter of the hole portion 29e of the tube portion 28e. It should be noted that the retaining portions 50, 50 are not limited to having a substantially spherical shape, and may have various shapes.

図２９および図３０に示すように、上記一方の支持部材２０は、上下方向の外力Ｆ（図３０参照）を受けたときに壁部２７ｅの上下方向略中央が図３０の手前側に突出するように屈曲変形する。上記他方の支持部材２０，２０は、外力Ｆを受けたときに各壁部２７ｅの上下方向略中央が図３０の奥側に突出するように屈曲変形する。 As shown in FIGS. 29 and 30, when the support member 20 receives a vertical external force F (see FIG. 30), the vertical center of the wall portion 27e protrudes forward in FIG. It bends and deforms like this. The other supporting members 20, 20 are bent and deformed so that the vertical center of each wall portion 27e protrudes toward the back side in FIG.

連結部材４０は、外力Ｆを受けると支持部材２０，２０，…の壁部２７ｅ、２７ｅにより連結部材４０の長手方向に沿って伸縮変形するようになる。具体的に、連結部材４０は、上記一方の支持部材２０の管部２８ｅと上記他方の支持部材２０の管部２８ｅとの間で伸長するようになる。これにより、参考の実施形態６に係る衝撃緩衝部材１０であっても、上記参考の実施形態３と同様に、上下方向の外力の大小にかかわらず衝撃緩衝性および反発性を維持することができる。 When the connecting member 40 receives the external force F, the wall portions 27e, 27e of the supporting members 20, 20, . Specifically, the connecting member 40 extends between the tube portion 28 e of the one support member 20 and the tube portion 28 e of the other support member 20 . As a result, even with the shock absorbing member 10 according to the sixth embodiment, as in the third embodiment, it is possible to maintain shock absorbing properties and resilience regardless of the magnitude of the external force in the vertical direction. .

［参考の実施形態７］
図３１は、参考の実施形態７に係る衝撃緩衝部材１０を示す。この参考の実施形態では、上記参考の実施形態１と比較して、連結部材４０の構成が異なっている。具体的に、上記参考の実施形態２で示した抜け止め部５０，５０が連結部材４０の両端部に形成されている。これにより、参考の実施形態７に係る衝撃緩衝部材１０であっても、上記参考の実施形態２で示した衝撃緩衝部材１０と同様の作用効果を得ることができる。 [ Reference Embodiment 7 ]
FIG. 31 shows a shock absorbing member 10 according to Embodiment 7 for reference . In this reference embodiment, the configuration of the connecting member 40 is different from that of the first reference embodiment. Specifically, the retaining portions 50 , 50 shown in the second reference embodiment are formed at both ends of the connecting member 40 . As a result, even with the shock absorbing member 10 according to the seventh embodiment of the reference, it is possible to obtain the same effect as the shock absorbing member 10 shown in the second embodiment of the above reference .

［その他の参考の実施形態］
上記参考の実施形態１～７に係るシューズＳとして、衝撃緩衝部材１０を、ソール１において着用者の足の少なくとも踵部に対応する位置および足のＭＰ関節のいずれか一方に対応する位置に配設した形態としてもよい。 [Other Reference Embodiments]
In the shoes S according to the above-described reference embodiments 1 to 7 , the shock absorbing member 10 is arranged on the sole 1 at a position corresponding to at least the heel of the wearer's foot or at a position corresponding to either one of the MP joints of the foot. It is good also as the form which provided.

以上、本発明についての実施形態を説明したが、本発明は上述の実施形態のみに限定されず、発明の範囲内で種々の変更が可能である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the invention.

本発明は、例えば例えばランニング、球技等の各種競技におけるスポーツ用シューズ、日常使用のスニーカー、リハビリ用シューズとして産業上の利用が可能である。 INDUSTRIAL APPLICABILITY The present invention can be industrially applied, for example, as sports shoes for various competitions such as running and ball games, sneakers for daily use, and shoes for rehabilitation.

Ｓ：シューズ
１：ソール
１０：衝撃緩衝部材
１１：外周部
２０：支持部材
２５：第１管部
２６：第２管部
２７ａ～２７ｅ：壁部
２８ａ～２８ｅ：管部
３０：受板部材
４０：連結部材
４１：第１連結部
４１ａ：側端部
４２：第２連結部
４２ａ：外端部
４２ｂ：内端部
４３：第３連結部
５０：抜け止め部
Ｆ：外力
S: Shoe 1: Sole 10: Shock absorbing member 11: Peripheral portion 20: Support member 25: First tube portion 26: Second tube portion 27a to 27e: Wall portions 28a to 28e: Tube portion 30: Receiving plate member 40: Connection member 41: first connection portion 41a: side end portion 42: second connection portion 42a: outer end portion 42b: inner end portion 43: third connection portion 50: retaining portion F: external force

Claims (5)

シューズ用ソールの衝撃緩衝部材であって、
互いに間隔をあけて配置された複数の支持部材と、
前記支持部材同士の間に架け渡され、該支持部材同士を互いに連結する連結部材と、を備え、
前記各支持部材は、
上下方向の外力により弾性変形可能な湾曲状の壁部と、
前記壁部に設けられた少なくとも１つの管部と、を有し、
前記連結部材は、前記各支持部材の前記管部内に挿通された状態で端部同士に継ぎ目がないように閉塞状に一体形成されており、
前記連結部材における材料の弾性域は、前記支持部材における材料の弾性域よりも大きくなるように構成されている、シューズ用ソールの衝撃緩衝部材。 A shock absorbing member for a shoe sole,
a plurality of support members spaced from one another;
a connecting member that bridges between the support members and connects the support members to each other;
Each support member is
a curved wall portion that can be elastically deformed by an external force in the vertical direction;
at least one tube portion provided in the wall portion;
The connecting member is integrally formed in a closed shape so that there is no joint between the ends while being inserted into the pipe portion of each supporting member ,
A shock absorbing member for a shoe sole , wherein the elastic area of the material of the connecting member is larger than the elastic area of the material of the supporting member. 請求項１に記載のシューズ用ソールの衝撃緩衝部材において、
前記衝撃緩衝部材は、平面視で略環状に形成された外周部を有しており、
前記連結部材は、
隣り合う前記支持部材同士の間で前記外周部の周方向に沿って延びる複数の第１連結部と、
前記外周部の周上から内側に向かって延びる複数の第２連結部と、を有しており、
前記支持部材が前記外力を受けて弾性変形したときに、前記第１および第２連結部の各々がそれぞれの長さ方向に向かって引っ張られる、シューズ用ソールの衝撃緩衝部材。 The shock absorbing member for the shoe sole according to claim 1 ,
The shock-absorbing member has an outer peripheral portion formed in a substantially annular shape in a plan view,
The connecting member is
a plurality of first connecting portions extending along the circumferential direction of the outer peripheral portion between the adjacent supporting members;
and a plurality of second connecting portions extending inwardly from the periphery of the outer peripheral portion,
A shock absorbing member for a shoe sole, wherein each of said first and second connecting portions is pulled in its longitudinal direction when said supporting member is elastically deformed by receiving said external force. 請求項２に記載のシューズ用ソールの衝撃緩衝部材において、
前記支持部材は、
前記外周部の周方向に沿って延びる第１管部と、
前記外周部の周上から内側に向かって延びかつ前記第１管部と連通する第２管部と、を有しており、
前記第１連結部は、両側端部が前記第１管部内に挿通された状態で前記支持部材に設けられており、
前記第２連結部は、少なくとも前記外周部側に位置する外端部が前記第２管部内に挿通された状態で前記支持部材に設けられている、シューズ用ソールの衝撃緩衝部材。 In the shock absorbing member for the shoe sole according to claim 2 ,
The support member is
a first pipe portion extending along the circumferential direction of the outer peripheral portion;
a second pipe portion extending inwardly from the circumference of the outer peripheral portion and communicating with the first pipe portion;
The first connecting portion is provided on the supporting member in a state in which both side end portions are inserted into the first pipe portion,
A shock absorbing member for a shoe sole, wherein the second connecting portion is provided on the supporting member in a state in which at least an outer end portion located on the outer peripheral portion side is inserted into the second pipe portion. 請求項１～３のいずれか１項に記載のシューズ用ソールの衝撃緩衝部材において、
前記支持部材の上側および下側の少なくとも一方に配置され、隣り合う該支持部材に架け渡される略板状の受板部材をさらに備える、シューズ用ソールの衝撃緩衝部材。 In the shock absorbing member for the shoe sole according to any one of claims 1 to 3 ,
A shock absorbing member for a shoe sole, further comprising a substantially plate-shaped receiving plate member arranged on at least one of the upper side and the lower side of the supporting member and bridged between the adjacent supporting members. 請求項１～４のいずれか１項に記載の衝撃緩衝部材を、シューズ用ソールにおける着用者の足の少なくとも踵部およびＭＰ関節のいずれか一方に対応する位置に配設した、シューズ。 A shoe, wherein the shock absorbing member according to any one of claims 1 to 4 is arranged at a position corresponding to at least one of the heel portion and the MP joint of the wearer's foot in the shoe sole.
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JP2008501401A (en) 2004-06-07 2008-01-24 ドクター フォー ドクター カンパニー リミテッド Shoes that can relieve shock by air circulation
US20060065499A1 (en) 2004-09-27 2006-03-30 Nike, Inc. Impact attenuating and spring elements and products containing such elements
JP2006334400A (en) 2005-06-03 2006-12-14 Treksta Inc Sole of footwear
JP2008149116A (en) 2006-12-18 2008-07-03 Adidas Internatl Marketing Bv Shoe
DE202012101767U1 (en) 2012-05-14 2013-08-19 Diemer & Dr. Jaspert GbR (vertretungsberechtigter Gesellschafter: Herrn Dr. Bodo F. Jaspert, 85630 Grasbrunn) spring element
US20140366401A1 (en) 2013-06-13 2014-12-18 Nike, Inc. Article of Footwear With Sole Member

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