JP2565828B2 - Midsole - Google Patents

Midsole

Info

Publication number
JP2565828B2
JP2565828B2 JP4236611A JP23661192A JP2565828B2 JP 2565828 B2 JP2565828 B2 JP 2565828B2 JP 4236611 A JP4236611 A JP 4236611A JP 23661192 A JP23661192 A JP 23661192A JP 2565828 B2 JP2565828 B2 JP 2565828B2
Authority
JP
Japan
Prior art keywords
midsole
body portion
main body
divided
recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP4236611A
Other languages
Japanese (ja)
Other versions
JPH0678805A (en
Inventor
正信 井ノ原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asics Corp
Original Assignee
Asics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asics Corp filed Critical Asics Corp
Priority to JP4236611A priority Critical patent/JP2565828B2/en
Publication of JPH0678805A publication Critical patent/JPH0678805A/en
Application granted granted Critical
Publication of JP2565828B2 publication Critical patent/JP2565828B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は運動靴の靴底少なくとも
踵部辺において着地衝撃を吸収緩和することを特徴とす
る衝撃吸収部材を備えたミッドソールの改良に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a midsole having an impact absorbing member which absorbs and alleviates a landing impact at least on the sole of the athletic shoe.

【0002】[0002]

【従来の技術】従来からEVA(エチレン酢酸ビニル共
重合体)若しくはポリウレタンの発泡体で一体形のミッ
ドソールを有する靴底における前記ミッドソールの踵部
辺及び/又は前部踏付部辺に合成樹脂シールで封入若し
くは封入されない緩衝部材を当着若しくは埋込みされた
ことを特徴とする運動靴が提供されていた。
2. Description of the Related Art Conventionally, EVA (Ethylene Vinyl Acetate Copolymer) or polyurethane foam is composited on the heel side and / or the front tread side of the midsole of a sole having an integrated midsole. There has been provided athletic shoes characterized in that a cushioning member enclosed or not enclosed by a resin seal is attached or embedded.

【0003】然しながら前述の従来の運動靴が備えてい
るミッドソールは、その多くのものが軟質のEVA製の
発泡体であるから運動中の靴着用者の足の過回内若しく
は過回外を抑止できないためこれらによる足の傷害を防
止できなかった。また同じく前記のミッドソールの所定
部位に当着若しくは埋込みされた緩衝部材は、その多く
のものが運動中の靴着用者の足の着地衝撃を緩和できる
反面靴着用者の前方への推進力を助長する反撥力が劣る
等の欠陥があった。
However, many of the midsoles provided in the above-mentioned conventional sports shoes are made of soft EVA foam, so that the midsole of a shoe wearer who is exercising during exercise may be excessively supination or supination. Since it could not be deterred, it was not possible to prevent the injuries to the feet due to these. Similarly, most of the cushioning members that are attached to or embedded in the predetermined portion of the midsole can reduce the impact of the foot of the shoe wearer during exercise on the ground, while the forward thrust of the shoe wearer is reduced. There was a defect such as poor repulsive force.

【0004】[0004]

【発明が解決しようとする課題】本発明は前述の従来の
運動靴のミッドソールの欠陥を克服し、靴着用者の前方
への推進力を助長する反撥弾性を緩衝部材の周辺をもた
らす機構をすくなくとも踵部辺に形成したミッドソール
を提供しようとするものである。
SUMMARY OF THE INVENTION The present invention provides a mechanism for overcoming the above-mentioned drawbacks of the midsole of the conventional sports shoe and providing impact resilience around the cushioning member for promoting forward propulsion of the shoe wearer. It aims to provide a midsole formed at least on the heel side.

【0005】[0005]

【課題を解決するための手段】本発明は前述の課題を解
決するために、ミッドソールを本体部分と分体部分の二
部分とし、前記本体部分aは従来の軟質の発泡体のみと
し、前記分体部分bは反撥弾性に富む構成のシール4内
に衝撃吸収部材5を封入し、これら本体部分aと分体部
分bをそれぞれの欠除部2と結合部3で結合し、更に前
記分体部分bのシール4の少なくとも内側面を外側面よ
りより厚く(或いはより薄く)することを新規な技術手
段とするものである。
In order to solve the above-mentioned problems, the present invention has a midsole as two parts, a main body part and a split part, and the main body part a is made of a conventional soft foam, In the divided part b, a shock absorbing member 5 is enclosed in a seal 4 which is rich in impact resilience, and the main body part a and the divided part b are connected to each other by the cutout portion 2 and the connecting portion 3. A new technical means is to make at least the inner surface of the seal 4 of the body part b thicker (or thinner) than the outer surface.

【0006】[0006]

【作用】本発明のミッドソールAは、軟質弾性に富む本
体部分aとこれとは別部材であって少なくとも踵部分に
相当する部分の反揆性のよいシール4内に衝撃吸収部材
5を封入した分体部分b を形成しているので、靴着用
者はその運動中における主として踵部辺における着地衝
撃を吸収緩和できる。また前記分体部分bの結合部3の
馬蹄形の側壁4の少なくとも外表面を所謂蛇腹状6或い
は波形若しくは刃形状にしているので、分体部分bの反
撥弾性を強化することができる。更にまた、前記分体部
分bの少なくとも結合部の馬蹄形の側壁はその外側部の
厚みを内側部の厚さより厚く形成することにより、靴着
用者がその運動中における過回内若しくは過回外を抑止
することができる。
In the midsole A of the present invention, the shock absorbing member 5 is enclosed in the seal 4 having a high resilience, which is a member different from the main body portion a rich in soft elasticity and at least a portion corresponding to the heel portion. Since the divided body portion b 1 is formed, the shoe wearer can absorb and relax the landing impact mainly on the heel side during the exercise. Further, since at least the outer surface of the horseshoe-shaped side wall 4 of the connecting portion 3 of the divided body portion b has a so-called bellows shape 6 or a corrugated or blade shape, the impact resilience of the divided body portion b can be enhanced. Furthermore, the horseshoe-shaped side wall of at least the connecting portion of the body part b is formed such that the thickness of the outer side portion thereof is thicker than the thickness of the inner side portion thereof, so that the shoe wearer can prevent excessive supination or supination during exercise. Can be deterred.

【0007】[0007]

【実施例】本発明に係るミッドソールAは図1、図2及
び図6で示すように本体部分aとこれとは別体で形成さ
れた分体部分bの二つの部品からなり、これら本体部分
aと分体部分bとを少なくとも踵部辺で結合して一体的
に成形されている。先づ前記主体部分aは、図1で示さ
れているように、ゴム若しくは合成樹脂の発泡体で一体
でかつ一部材で形成された従来のミッドソールと同様の
発泡体で成形されており、その素材は軟質の天然ゴム若
しくは合成ゴム又は熱可塑性の合成樹脂例えばEVAや
ポリウレタン等の発泡体が用いられているが、好ましく
はEVAの発泡体が使用される。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A midsole A according to the present invention comprises two parts, a main body part a and a split part b formed separately from the main body part a, as shown in FIGS. 1, 2 and 6. The portion a and the divided body portion b are integrally formed by joining at least the heel side. First, as shown in FIG. 1, the main body portion a is formed of the same foam as a conventional midsole integrally formed of a foam of rubber or synthetic resin and formed of one member, The material is a soft natural rubber or synthetic rubber, or a thermoplastic synthetic resin such as EVA or polyurethane foam, and preferably EVA foam is used.

【0008】また前記熱可塑性の合成樹脂のシール4内
に衝撃吸収部材5を封入密閉している。前記分体部分b
のシール4は、図2、図3及び図5で示すようにその少
なくとも外表面を断面が波形若しくは刃形所謂蛇腹状6
に形成しており、また該シール4は軟質で弾性に富むE
VA、ポリ塩化ビニル樹脂若しくはポリウレタンの如き
熱可塑性樹脂で成形しているので、衝撃吸収部材5の多
くのもののように緩衝性がよい反面に乏しい反撥弾性を
補強するものとなる。
A shock absorbing member 5 is sealed in the seal 4 made of the thermoplastic synthetic resin. The divided part b
As shown in FIGS. 2, 3 and 5, the seal 4 has a corrugated or blade-shaped so-called bellows-shaped section 6 at least on its outer surface.
And the seal 4 is made of a soft and elastic material.
Since it is formed of a thermoplastic resin such as VA, polyvinyl chloride resin or polyurethane, it has a good cushioning property like many shock absorbing members 5, but reinforces poor impact resilience.

【0009】また衝撃吸収部材5としてはやや流動性の
よい状態の若しくは流動性の乏しい状態のシリコン樹脂
を用いることにより、衝撃力が加わったときの変化によ
り前記衝撃力を充分に緩和することができる。また前記
分体部分bは図3乃至図5で示すようにそれ自体が結合
部3であって、平面が馬蹄形の側壁の上面32と該上面
32の側壁内側に凹み31底面33を形成している。ま
た前記上面32は前方に傾斜して分体部分bの底面34
で区切られている。更に前記凹み31は上方と同様に前
方でも開口している。
Further, by using a silicon resin having a slightly good fluidity or a poor fluidity as the impact absorbing member 5, the impact force can be sufficiently alleviated by a change when an impact force is applied. it can. As shown in FIGS. 3 to 5, the divided body portion b itself is the coupling portion 3 and has a horseshoe-shaped upper surface 32 of the side wall and a recess 31 on the inner side of the upper surface 32, and a bottom surface 33. There is. The upper surface 32 is inclined forward and the bottom surface 34 of the divided body portion b is
Separated by. Further, the recess 31 is open forward as well as upward.

【0010】前記本体部分aは図1で示すように少なく
とも後方例えば踵部辺に前記分体部分bの結合部3と結
合する欠除部2を有している。該欠除部2は前記分体部
分bの側壁の上面32と衝合する上部底面21と同じく
前記分体部分bの凹み31内に密着結合する凸部22と
同じく前記分体部分bの凹み31の底面33と衝合する
底面23及び同じく前記分体部分bの上面32の傾斜面
と衝合する斜面24を形成している。従って該分体部分
bの凹み31内に前記主体部分aの欠除分2の凸部22
を接着材を介して若しくは密着剤を用いないで密着嵌合
してミッドソールAを完成することができる。この時ミ
ッドソールAの底面7と分体部分bの底面34は同一平
面状に形成されている。
As shown in FIG. 1, the main body portion a has at least a rear portion, for example, a heel portion side, with a cutout portion 2 which is joined to the joint portion 3 of the divided body portion b. The cut-out portion 2 has a top surface 21 that abuts an upper surface 32 of the side wall of the division body portion b, and a projection 22 that closely adheres to a recess 31 of the division body portion b as well as a depression of the division body portion b. A bottom surface 23 that abuts a bottom surface 33 of the base 31 and a slope 24 that also abuts a sloped surface of the top surface 32 of the divided body portion b are formed. Therefore, in the recess 31 of the divided body portion b, the convex portion 22 of the lacking portion 2 of the main body portion a.
The midsole A can be completed by tightly fitting them together with an adhesive or without using an adhesive. At this time, the bottom surface 7 of the midsole A and the bottom surface 34 of the divided body portion b are formed in the same plane.

【0011】前記本体部分aと分体部分はそれぞれ所望
の成形型の上型と下型内で閉塞密閉された後、加熱加圧
成形される。この際前記本体部分aは既発泡のEVA材
を用い、同じく分体部分bはシール4内に衝撃吸収部材
5を封入したものを用いる。前記分体部分bのシール4
はその成形材料が押し出し成形機によって管状に押し出
されてチューブ状のものに成形される。次に該シール4
はその一部を両端が密閉される型内に挟まれ、該チュー
ブ内に圧縮空気が送り込まれて型内面に固定されて袋体
状となり、該袋体状内に衝撃吸収部材4を納め入れた後
にこれを密封して成形できる。所謂ブロー成形法を用い
て成形すればよい。
The main body part a and the divided part are closed and sealed in the upper mold and the lower mold of a desired molding die, respectively, and then heated and pressed. At this time, the body portion a is made of a foamed EVA material, and the body portion b is made of a seal 4 in which a shock absorbing member 5 is enclosed. The seal 4 of the divided part b
Is molded into a tubular shape by extruding the molding material into a tubular shape by an extrusion molding machine. Next, the seal 4
Part of it is sandwiched in a mold whose both ends are sealed, compressed air is sent into the tube and is fixed to the inner surface of the mold to form a bag, and the shock absorbing member 4 is housed in the bag. After that, it can be molded by sealing. It may be formed by using a so-called blow molding method.

【0012】[0012]

【別実施例】本発明のミッドソールAは、図1乃至図7
等出図示されるもののように、本体部分aと分体部分は
主として踵部辺に結合されるものの他に、図8及び図9
等で示されているもののように、ミッドソールAの全体
に亘って本体部分aと分体部分bが結合されるもの、即
ち分体部分bの凹み31内に本体部aの凸部22が嵌合
され、接着剤を介し若しくは介しないで、本体部分aの
凸部22の底面23が分体部分の凹み31の底面33
に、同じく本体部分aの全上部底面21が分体部分21
が分体部分bの全上面32に当着結合することにより一
体的に結合成形したものとしても提供できる。
[Other Embodiments] A midsole A of the present invention is shown in FIGS.
As shown in FIG. 8 and FIG. 9, the main body portion a and the divided body portion are connected mainly to the heel side as shown in FIG.
As shown in FIG. 4B, the body part a and the body part b are connected over the entire midsole A, that is, the protrusion 22 of the body part a is formed in the recess 31 of the body part b. The bottom surface 23 of the convex portion 22 of the main body portion a is fitted to the bottom surface 33 of the recess 31 of the divided body portion with or without an adhesive.
Similarly, the entire upper bottom surface 21 of the main body portion a is the division portion 21.
Can also be provided as an integrally-bonded one by being fixedly bonded to the entire upper surface 32 of the divided part b.

【0013】[0013]

【発明の効果】前述のように本発明のミッドソールAを
有する靴底を備えた運動靴の着用者は、その歩行若しく
は走行殊に走行中における主として踵部辺で着地したと
き、その強力な着地衝撃を分体部分b内の衝撃吸収部材
の変形によって緩和して靴着用者の足にもたらす傷害の
発生を未然に防止できた。
As described above, the wearer of the athletic shoe provided with the sole having the midsole A of the present invention has a strong strength when it lands mainly on the heel side during walking or running, especially running. The landing impact was alleviated by the deformation of the impact absorbing member in the body part b, and the occurrence of injury to the foot of the shoe wearer was prevented.

【0014】また前記分体部分bの結合部3はそのシー
ル4内に衝撃吸収部材5を封入している。またシール4
の少なくとも外側面には反揆弾性に富む蛇腹状6を形成
しているので、シール4自身の弾性を強化してその反揆
弾性力による、衝撃の吸収緩和後の靴着用者の推進力を
高めランニングのスピードアップに寄与できた。また、
前記分体部分bはその少なくとも結合部3の馬蹄形の側
壁を構成する外側面の厚みを内側面のそれより厚くする
ことによって靴着用者の足の着地後の過回外による下肢
及び膝関にもたらす傷害の発生を防止できた。また前記
分体部分bの結合分3の馬蹄形の側壁の主として外表面
に形成した蛇腹状6はミッドソールの主として踵部辺の
外観体栽を良好にしてミッドソール若しくは運動靴の商
品価値を高めることができた。
The joint portion 3 of the divided body portion b has a shock absorbing member 5 enclosed in a seal 4 thereof. Seal 4
Since the bellows-like 6 rich in anti-elasticity is formed on at least the outer side surface of the shoe, the elasticity of the seal 4 itself is strengthened to increase the propulsive force of the shoe wearer after absorbing and relaxing the impact by the anti-elasticity. It contributed to the higher running speed. Also,
The segmental portion b has at least the outer side surface forming the horseshoe-shaped side wall of the connecting portion 3 made thicker than that of the inner side surface, so that the leg part and the knee joint due to excessive supination of the foot of the shoe wearer after landing. It was possible to prevent the resulting injury. Further, the bellows-like shape 6 formed mainly on the outer surface of the horseshoe-shaped side wall of the joint portion 3 of the division body portion b improves the appearance of the midsole mainly on the heel side and enhances the commercial value of the midsole or sports shoes. I was able to.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のミッドソールの本体部分を示す一側面
略図。
FIG. 1 is a schematic side view showing a main body portion of a midsole of the present invention.

【図2】同じく前記ミッドソールの分体部分の内側面略
図。
FIG. 2 is a schematic diagram of an inner side surface of a divided part of the midsole.

【図3】同じく前記ミッドソールの分体部分の外側面略
図。
FIG. 3 is a schematic side view of the outer side of the divided part of the midsole.

【図4】同じく前記ミッドソールの分体部分の上から見
た平面略図。
FIG. 4 is a schematic plan view of the midsole seen from above.

【図5】同じく前記図4の分体部分のX−X線に沿う拡
大横断面略図。
FIG. 5 is an enlarged schematic cross-sectional view of the divided body of FIG. 4 taken along line XX.

【図6】同じくミッドソールの一側面略図。FIG. 6 is a schematic side view of the same midsole.

【図7】同じく前記図6のミッドソールのY−Y線に沿
う拡大横断面略図。
7 is a schematic enlarged cross-sectional view of the midsole of FIG. 6 taken along line YY.

【図8】同じく他の実施例に係るミッドソールの一側面
略図。
FIG. 8 is a schematic side view of a midsole according to another embodiment.

【図9】同じく他の実施のミッドソールのZ−Z線に沿
う拡大横断面略図。
FIG. 9 is an enlarged schematic cross-sectional view of the midsole of another embodiment taken along line ZZ.

【符号の説明】[Explanation of symbols]

A ミッドソール a 本体部分 b 分体部分 1 上面 2 欠除部 3 結合部 4 シール 5 衝撃吸収部材 6 蛇腹状 7 底面 A midsole a body part b division part 1 upper surface 2 lacking part 3 connecting part 4 seal 5 shock absorbing member 6 bellows-like 7 bottom surface

Claims (5)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 足裏状の上面1及び踵部辺の下方部位の
周側に欠除部2を有し、該欠除部2によってできる凸部
22を有する本体部分aと、該本体部分aの凸部22を
嵌合する凹み31と該凹み31を囲む馬蹄形の側壁を有
する結合部3を形成した分体部分bとからなり、前記本
体部分aはゴム若しくは樹脂の発泡体で形成し、前記分
体部分bはゴム若しくは合成樹脂のシール4内に衝撃吸
収部材5を封入形成し、これら本体部分aの凸部22を
前記分本部分bの結合部分bの結合部3の凹み31内に
嵌め込み結合してなることを特徴とするミッドソール
A。
1. A main body portion a having a foot-like upper surface 1 and a cutout portion 2 on a peripheral side of a lower portion of a heel side, and a convex portion 22 formed by the cutout portion 2, and the main body portion. It is composed of a recess 31 into which the convex portion 22 of a is fitted, and a divided body portion b in which a connecting portion 3 having a horseshoe-shaped side wall surrounding the recess 31 is formed, and the main body portion a is formed of rubber or resin foam. In the divided portion b, a shock absorbing member 5 is formed in a rubber or synthetic resin seal 4, and the convex portion 22 of the main body portion a is recessed in the joint portion 3 of the joint portion b of the divided portion b. A midsole A characterized by being fitted and connected inside.
【請求項2】 前記分体部分bの結合部3は、前記凹み
31と該凹み31を囲む馬蹄形の側壁の上面32及び底
部33からなることを特徴とする請求項1記載ノミッド
ソールA。
2. The nomid sole A according to claim 1, wherein the joint portion 3 of the divided body portion b is composed of the recess 31 and an upper surface 32 and a bottom portion 33 of a horseshoe-shaped side wall surrounding the recess 31.
【請求項3】 前記本体部分aの欠除部2は前記分本体
部分bの側壁の上面32と衝合する上部底面21と同じ
く前記分体部分bの凹み31に嵌合する凸部22及び同
じく前記分体部分bの凹み31の底面33と衝合する前
記凸部22の底面23からなることを特徴とする請求項
1記載のミッドソールA。
3. The cutout portion 2 of the main body portion a has an upper bottom surface 21 that abuts an upper surface 32 of a side wall of the division main body portion b, and a convex portion 22 that fits into a recess 31 of the division body portion b. The midsole A according to claim 1, further comprising a bottom surface 23 of the convex portion 22 that abuts a bottom surface 33 of the recess 31 of the divided portion b.
【請求項4】 前記分本部bのシール4はその少なくと
も外表面を蛇腹状6に形成したことを特徴とする請求項
1若しくは請求項2のいずれかに記載のミッドソール
A。
4. The midsole A according to claim 1, wherein at least the outer surface of the seal 4 of the main part b is formed in a bellows shape 6.
【請求項5】 前記分本部分bの結合部3の側壁の厚み
は少なくとも外側面の厚みを内側面のそれより厚く形成
したことを特徴とする、請求項1、請求項2及び請求項
4のいずれかに記載のミッドソールA。
5. The thickness of the side wall of the connecting portion 3 of the division portion b is formed such that at least the thickness of the outer side surface is thicker than that of the inner side surface. Midsole A according to any one of 1.
JP4236611A 1992-09-04 1992-09-04 Midsole Expired - Lifetime JP2565828B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4236611A JP2565828B2 (en) 1992-09-04 1992-09-04 Midsole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4236611A JP2565828B2 (en) 1992-09-04 1992-09-04 Midsole

Publications (2)

Publication Number Publication Date
JPH0678805A JPH0678805A (en) 1994-03-22
JP2565828B2 true JP2565828B2 (en) 1996-12-18

Family

ID=17003211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4236611A Expired - Lifetime JP2565828B2 (en) 1992-09-04 1992-09-04 Midsole

Country Status (1)

Country Link
JP (1) JP2565828B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6343925Y2 (en) * 1986-04-11 1988-11-16
JP3082007U (en) * 2001-05-23 2001-11-30 株式会社丸福 Sink lantern

Also Published As

Publication number Publication date
JPH0678805A (en) 1994-03-22

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