JPS6035126B2 - athletic shoe soles - Google Patents

Description

【発明の詳細な説明】 この発明は、歩行及び走行時に靴底接地面に掛る負荷の
ベクトル（負荷の絶対値に方向性を加味）に対応して、
これを緩和吸収すべく底主体上面に複数条のスリット状
溝を穿設した運動靴底の構造に関する。[Detailed Description of the Invention] The present invention provides a method that corresponds to the load vector (direction is added to the absolute value of the load) applied to the contact surface of the sole during walking and running.
The present invention relates to a structure of an athletic shoe sole in which a plurality of slit-like grooves are formed on the upper surface of the sole body to absorb and absorb this.

その目的とするところは、靴を着用して歩行若しくは走
行する際、着地、接地、蹴り始め、蹴り上げの連続した
一連の動作に対応して、着地時に受ける衝撃力（ィンパ
ルス）、体重に運動エネルギーが加算されて片足に集中
する際の突進圧（スラスト）を適宜に緩和吸収し、更に
蹴り上げ時に爪先部に作用するキック力を些かも減殺す
ることなく効果的に発揮させるために、底主体の上面に
スリット状溝を穿設して、靴の運動機能性を顕著に向上
させ、履心地のよい安価な運動靴底を提供しようとする
ものである。The purpose of this study is to adjust the impact force (impulse) received upon landing, the body weight, and The bottom of the bottom was designed to appropriately alleviate and absorb the lunge pressure (thrust) that occurs when energy is added and concentrated on one foot, and to effectively exert the kicking force that acts on the toe when kicking up. A slit-like groove is formed on the upper surface of the main body to significantly improve the athletic functionality of the shoe, and to provide a comfortable and inexpensive athletic shoe sole.

従来、靴を着用して歩行、走行及び跳躍する際に、靴底
が受ける着地衝撃圧や突進圧を緩和吸収して、足や脚部
の筋肉、轍帯及び関節を保護する方策を講じた考案等が
種々提起されている。即ち、靴用途によって発泡倍率を
適宜に設定した発泡弾性体を底材に使用したり、組成や
硬度の異なる素材を重層形成したり、或いは靴底の各部
位に掛る負荷に対応して物体の異なる素材を局部的に配
置したり、また、厚手の靴底の場合、靴底上面に補強リ
ブで区画された凹陥部を設けて、靴底の屈曲性と軽量化
を計ったもの等は周知である。然しながら、靴底の素材
を軟質弾性体で構成した場合、確かに足袋の感触は軟ら
かく屈曲性が良好で、足の運びが容易で歩行能率が良い
が、反面、このような軟質素材の靴底を長時間着用する
と足の疲労感はかえって増進され、また歩行、走行及び
跳躍時に、足の筋力が軟質弾性体に吸収されて運動機能
性を損なうことになる。Conventionally, when walking, running, or jumping while wearing shoes, measures have been taken to protect the muscles, ruts, and joints of the feet and legs by alleviating and absorbing the landing impact pressure and lunge pressure that the soles of the shoes receive. Various ideas have been proposed. In other words, it is possible to use a foamed elastic material with the foaming ratio set appropriately depending on the shoe use, to form layers of materials with different compositions and hardnesses, or to create materials that correspond to the load applied to each part of the sole. It is well known that different materials are placed locally, or in the case of thick soles, a recessed part separated by reinforcing ribs is provided on the upper surface of the sole to make the sole more flexible and lighter. It is. However, when the sole material is made of a soft elastic material, the tabi feels soft and has good flexibility, making it easy to move and improve walking efficiency. Wearing footwear for a long period of time will actually increase the feeling of fatigue in the feet, and when walking, running, and jumping, the muscle strength of the feet will be absorbed by the soft elastic body, impairing motor functionality.

重層靴底や局部的に物性（硬度等）の異なる底材を配置
したものは、工数が増してコスト高となり採算的に不利
である。また、靴底上面に補強リブで区画して凹陥部を
設けたものは、従来の開示技術では殆んどが底材の削減
と靴底の軽量化を意図したものが多く、靴底接地面に掛
る負荷のベクトルに対応して、これを適宜に緩和吸収す
るように設計されたものではなかった。この発明は、こ
れ等の欠点を除去したもので、以下実施図面に従って説
明すれば、第１図、第３図の如く、底主体上面５に開口
した複数条のスリット状溝６を足袋の負荷の軌跡に対し
て横方向に設け、種部１１から不踏部１２に至る該溝６
は爪先１３方向へ傾斜して形成し、爪先部１３附近の該
溝６は種部１１方向へ傾斜して形成されている。この際
、該溝６の傾斜角は、靴底の接地面４に掛る負荷のベク
トル（歩行の場合約４細／日の速度、ジョギング走行の
場合は約１１物／日の速度を基準に設定）に対応して、
種部１１附近では傾斜角を急に、不踏部１２附近に至る
に従って傾斜角を’順次緩やかに形成して、スリット状
溝６間に狭窄された補強リブ７が発条機能を発揮できる
ように弾凝的に構成されたことを要旨とするものである
。即ち、歩行及び走行時に足裏に掛る負荷は、第１０図
に示す如く、種部１１の着地に始まって、不踏部１２の
外側緑に沿って種部１１から徐々に爪先部１３の方向へ
押圧されながら接地し、第５指のボール部に達したら、
足底を横切って第１指のボール部までローリングさせ、
そのまま第１指の反りなりにピッチングさせて力を次第
に第１指爪先部１３へ移し、最後に各指で地面を強く蹴
って前進する。Multi-layered soles or soles with localized soles having different physical properties (hardness, etc.) require more man-hours and are therefore more costly, making them unprofitable. In addition, most of the conventionally disclosed technologies that have a recessed part divided by reinforcing ribs on the upper surface of the sole are intended to reduce the sole material and make the sole lighter, and the sole contact area It was not designed to appropriately alleviate or absorb the load vector applied to it. This invention eliminates these drawbacks, and will be described below with reference to the drawings. As shown in FIGS. The groove 6 is provided in a direction transverse to the locus of
is formed to be inclined toward the toe portion 13, and the groove 6 near the toe portion 13 is formed to be inclined toward the seed portion 11 direction. At this time, the inclination angle of the groove 6 is set based on the vector of the load applied to the contact surface 4 of the sole (a speed of approximately 4 min/day for walking and a speed of approximately 11 min/day for jogging). ), corresponding to
The angle of inclination is steep in the vicinity of the seed part 11, and gradually becomes gentler as it approaches the untreaded part 12, so that the reinforcing ribs 7 narrowed between the slit-shaped grooves 6 can perform the springing function. The gist is that it is structured in a flexible manner. That is, as shown in FIG. 10, the load applied to the sole of the foot during walking and running starts when the seed part 11 lands, and gradually moves from the seed part 11 toward the toe part 13 along the outer green of the non-stepping part 12. When you touch the ground while being pressed down and reach the ball of your fifth finger,
Roll across the sole of the foot to the ball of the first toe,
Pitch the first finger as it is, gradually transferring the force to the first finger toe part 13, and finally kick the ground strongly with each finger to move forward.

（但し、普通は第４、５指はあまり使われていない。）
従って、靴底に掛る負荷方向は、種部１１から不踏部１
２附近まで爪先方向へ向う着地衝撃圧や突進圧が作用し
、ボール部から指骨群附近では種方向へ向うキック力と
して作用する。(However, the 4th and 5th fingers are usually not used much.)
Therefore, the direction of the load applied to the sole of the shoe is from the seed part 11 to the unstepped part 1.
Landing impact pressure and lunge pressure act in the direction of the toe up to around 2, and kick force acts in the direction from the ball to the phalanges.

その際に、靴底の各部位が受ける負荷変動及び靴底の接
地面積の変化（ワンステップ）は、例えば約１１物／日
でジョギング走行する場合の試験結果を第１１図、第１
２図に示している。At that time, the load fluctuations that each part of the shoe sole receives and the change in the ground contact area of the shoe sole (one step) are shown in Figure 11 and Figure 1.
It is shown in Figure 2.

即ち、歩行及び走行速度によって或いは個人差によって
、これ等の負荷変動や靴底の接地面積の軌跡は若干異な
るが、大筋としては大同４・異の傾向を示す。第１２図
でも明瞭な如く、片足に体重が集中し、且つこれに運動
エネルギーが加算された状態では、負荷（突進圧）の大
きさは体重の約２．７倍にも達する。（この際の負荷は
、種部１１から不踏部１２附近までの足袋面積で支持）
この過大な負荷を適宜に緩和吸収して、足や脚部の筋肉
、籾帯及び関節を保護するとともに、足の筋力を些かも
減殺することなく靴底に伝達するように靴底を構成する
ことが、この発明の必須要件である。That is, although these load fluctuations and the trajectory of the ground contact area of the sole differ slightly depending on walking and running speeds or individual differences, they generally show similar trends. As is clear from FIG. 12, when the body weight is concentrated on one foot and kinetic energy is added to this, the load (lunge pressure) reaches approximately 2.7 times the body weight. (The load at this time is supported by the tabi area from the seed part 11 to the vicinity of the unstepped part 12)
The sole of the shoe is constructed in such a way that this excessive load can be appropriately alleviated and absorbed to protect the muscles, husks, and joints of the foot and leg, and to transmit the muscle strength of the foot to the sole without diminishing it in the slightest. This is an essential requirement of this invention.

この発明の靴底の底主体３は、天然ゴム、合成ゴム並び
に合成樹脂等の底材により形成されたもので、充実体の
場合で硬度５０〜７０度（ＪＩＳＫ６３０１Ａ型硬度）
、発泡体の場合で硬度８０〜１００度（ＳＲＩＳＯＩＯ
Ｉによるスプリング硬さ試験の硬度）程度に若干硬めに
組成され、スリット状溝６と一体的に加熱加圧成形法な
いし射出成形法等によって成形されたものである。The sole main body 3 of the sole of the present invention is formed of a sole material such as natural rubber, synthetic rubber, or synthetic resin, and has a hardness of 50 to 70 degrees (JISK6301A type hardness) in the case of a solid body.
, in the case of foam, the hardness is 80 to 100 degrees (SRISOIO
It has a composition that is slightly hard, about the same as the hardness of the spring hardness test by I, and is molded integrally with the slit-shaped groove 6 by a hot pressure molding method, an injection molding method, or the like.

（前記のＳＲＩＳＯＩＯＩによるスプリング硬さ試験と
は、日本ゴム協会標準規格（ＳＲＩＳ）の膨張ゴムの物
理試験方法−規格番号０１０１のスプリング硬さ試験を
意味している。）また、靴底の底主体上面５に開口した
複数条のスリット状溝６は、前記の如く、足袋に掛る負
荷の軌跡及び負荷のベクトルに相対応して形成され、補
強リブ８の弾条作用が充分に発揮される煩斜角が設定さ
れる。(The above-mentioned spring hardness test by SRISOIOI means the spring hardness test of the physical test method for expanded rubber of the Japan Rubber Institute Standards (SRIS) - standard number 0101.) As mentioned above, the plurality of slit-shaped grooves 6 opened on the upper surface 5 are formed corresponding to the locus of the load applied to the tabi and the vector of the load, so that the elastic action of the reinforcing ribs 8 can be fully exerted. Bevel angle is set.

即ち、スリット状溝６の傾斜角は、第４図に示す如く、
種部１１附近では額射角を約７５ｏ±５ｏ程度に、不踏
部１２附近に至るに従って傾斜角を順次緩やかに形成し
、中足骨附近で約４５０±５ｏ程度に形成する。また、
中足骨の前部から指骨群にかけての爪先部１３に対応す
る底主体上面５に設けられたスリット状溝６は、種部方
向へ約７５０士５ｏ程度の後斜角で形成される。That is, the inclination angle of the slit-like groove 6 is as shown in FIG.
Near the seed part 11, the forehead angle is approximately 75o±5o, and as it approaches the non-stepping part 12, the inclination angle becomes gradually gentler, and near the metatarsal bone, it is approximately 450±5o. Also,
A slit-like groove 6 provided on the upper surface 5 of the bottom main body corresponding to the toe section 13 from the front part of the metatarsal bone to the phalanx group is formed at a posterior oblique angle of about 750 x 5 o in the direction of the seed part.

更に、スリット状溝６の幅寸法は約３〜１仇吻、スリッ
ト状溝６間に狭窄して形成された補強リブ７の幅寸法は
約５〜１仇駁程度とする。スリット状溝６の深さは、底
主体３の裏面に外底を装着するかどうかによっても異な
るが、仮に底主体３のみで靴底１を構成する場合、接地
面４からスリット状溝６の底面までの寸法は接地面４の
摩耗を配慮して、少なくとも約３〜５肋程度は必要であ
る。Further, the width of the slit grooves 6 is about 3 to 1 mm, and the width of the reinforcing ribs 7 narrowed between the slit grooves 6 is about 5 to 1 mm. The depth of the slit-like groove 6 varies depending on whether an outer sole is attached to the back surface of the sole main body 3, but if the sole 1 is composed of only the sole main body 3, the depth of the slit-like groove 6 from the ground contact surface 4 is The dimension to the bottom surface should be at least about 3 to 5 ribs in consideration of wear of the ground plane 4.

従って、瞳部１１が厚副こ、踏付部から爪先部１３に至
って順次簿目に形成した底主体３の場合、第５図、第６
図に示す如く、底厚が約３〜５柳確保できる種部１１附
近にのみスリット状溝６が形成される。Therefore, in the case of a bottom main body 3 in which the pupil part 11 is thick and the tread pattern is sequentially formed from the tread part to the toe part 13, FIGS.
As shown in the figure, the slit-shaped groove 6 is formed only in the vicinity of the seed portion 11 where the bottom thickness can be approximately 3 to 5 mm.

更に、第５図、第７図の如く、内不踏のアーチ部１４を
除いてスリット状溝６を設ければ、歩行及び走行時に靴
底に負荷が掛った際に、スリット状溝６が穿設された部
辺は負荷によって弾榛的に圧縮され、内不踏のアーチ部
１４は殆んど変位しないので、結果的に靴底のアーチ部
１４が足裏の内不踏部に密着した格好になり、フィット
感を増進することができる。Furthermore, as shown in FIGS. 5 and 7, if the slit-like grooves 6 are provided except for the arch part 14 of the inner foot, the slit-like grooves 6 will be removed when a load is applied to the sole during walking or running. The perforated side is elastically compressed by the load, and the arch part 14 of the inner foot is hardly displaced, so that the arch part 14 of the sole of the shoe comes into close contact with the inner foot part of the sole. You can look more stylish and improve your fit.

また、歩行及び軽走行時に足裏に作用する負荷は、第１
０図に示された矢印の如く変位するので、底主体上面５
に穿設されるスリット状溝６は、第７図の如く、この矢
印方向に沿って設けられる方が理想的である。In addition, the load that acts on the soles of the feet during walking and light running is
As it is displaced as shown by the arrow in Figure 0, the top surface 5 of the bottom main body
It is ideal that the slit-like groove 6 is provided along the direction of the arrow as shown in FIG.

この発明は、前記の如く構成されているので、歩行及び
走行時に靴底の種部に掛る着地衝撃圧、種部から不踏部
附近に至って掛る突進圧、及び爪先部附近に掛るキック
力を靴の運動機能性を損うことなく適宜に緩和吸収する
ことができた。Since this invention is constructed as described above, it reduces landing impact pressure applied to the seed part of the sole during walking and running, rush pressure applied from the seed part to the vicinity of the unstepped part, and kick force applied to the vicinity of the toe part. It was possible to appropriately relax and absorb without impairing the athletic functionality of the shoe.

また、前記の如く、この発明の靴の底主体は中硬質充実
体若しくは硬質発法体で形成されているので、足裏に対
する感触は適度の硬度を保持し、靴を長時間着用しても
疲労感が少なく、然かも着地衝撃圧や過大な突進圧は補
強リブの押し曲げと、これが複元しようとする際の反発
力によって適度に緩和吸収され、従って、従来の靴底に
比較して足及び脚部の筋肉、靭帯及び関節を損傷する懸
念を払拭し、人間工学的な論理にかなった理想的な運動
靴底を構成することができた。また、底主体と一体的に
スリット状溝が形成されるので、製造工程が簡単で製造
原価を低減することができた。In addition, as mentioned above, since the main sole of the shoe of the present invention is made of a medium-hard solid body or a hard extruded body, it maintains an appropriate hardness to the touch of the sole, even when the shoe is worn for a long time. There is less fatigue, and the landing impact pressure and excessive lunge pressure are moderately absorbed by the pushing and bending of the reinforcing ribs and the repulsive force when this tries to double, and therefore compared to conventional shoe soles. We were able to eliminate concerns about damaging the muscles, ligaments, and joints of the feet and legs, and construct an ideal athletic shoe sole that is ergonomically logical. Furthermore, since the slit-like grooves are formed integrally with the bottom main body, the manufacturing process is simple and manufacturing costs can be reduced.

図面の簡単な説明図面は実施例を示すものであって、第
１図は種部から爪先部までスリット状溝を穿設した場合
の靴の側面図。BRIEF DESCRIPTION OF THE DRAWINGS The drawings show examples, and FIG. 1 is a side view of a shoe in which a slit-like groove is formed from the seed part to the toe part.

第２図は種部から不踏部附近までスリット状溝が穿設さ
れた靴の側面図。第３図はＡ−Ａ矢視平面図。第４図は
Ｃ−Ｃ断面図。第５図はＢ−Ｂ矢視平面図。第６図はＤ
−Ｄ断面図。第７図は足裏に掛る負荷の軌跡に沿ってス
リット状溝を穿設した底主体上面の平面図。第８図はＥ
−Ｅ断面図。第９図はＦ−Ｆ断面図。第１０図は足袋に
作用する負荷変位を図示した平面図。第１１図は約１１
袖′日でジョギング走行した場合のワンステップを、靴
底面より高速撮影した「靴底の接地面積変化」の軌跡図
。第１２図は約１１物／日でジョギング走行した場合の
ワンステップの負荷変化。符号の説明、１・・…・運動
靴底、２・・・・・・岬被、３・・・・・・底主体、４
・・・・・・底主体の接地面、５・・・・・・底主体上
面、６・・…・スリット状溝、７・・・・・・補強リブ
、８・・・・・・切欠溝、９・・・・・・芯底、１０…
・・・中底、１１・・・・・・種部、１２・・・・・・
不踏部、１３・・・・・・爪先部、１４・・・・・・ア
ーチ部、１〜２３……１１紘／日でジョギング走行した
場合のワンステップを靴底側より高速撮影した「靴底の
接地面積変化」の軌跡のコマ番号。FIG. 2 is a side view of a shoe in which a slit-like groove is formed from the tongue part to the vicinity of the non-stepping part. FIG. 3 is a plan view taken along the line A-A. FIG. 4 is a sectional view taken along line C-C. FIG. 5 is a plan view taken along the line B-B. Figure 6 is D
-D sectional view. FIG. 7 is a plan view of the upper surface of the main body of the sole in which slit-like grooves are formed along the locus of the load applied to the sole of the foot. Figure 8 is E
-E sectional view. FIG. 9 is a sectional view taken along line FF. FIG. 10 is a plan view illustrating the load displacement acting on the tabi. Figure 11 is about 11
A trajectory diagram of ``changes in the contact area of the sole of a shoe'' taken at high speed from the sole of the shoe during a single step while jogging. Figure 12 shows the one-step load change when jogging at a rate of about 11 hours per day. Explanation of symbols, 1... Sole of athletic shoes, 2... Cape cover, 3... Sole main body, 4
... Ground surface of bottom main body, 5 ... Top surface of bottom main body, 6 ... Slit-shaped groove, 7 ... Reinforcement rib, 8 ... Notch Groove, 9... Core bottom, 10...
...Insole, 11...Tane part, 12...
Non-stepping part, 13... Toe part, 14... Arch part, 1 to 23... One step taken when jogging at 11 km/day was photographed from the sole side of the shoe at high speed. Frame number of the trajectory of "change in the contact area of the sole of the shoe."

２４は、１１物′日でジョギング走行した場合のワンス
テップを靴底側より高速撮影した「靴底の接地面積の変
化」の軌跡１〜２３を重合したものである。24 is a superposition of trajectories 1 to 23 of ``changes in the ground contact area of the sole'' taken at high speed from the sole side of one step when jogging for 11 days.

イ・・・・・・重垂方向負荷、口・・・・・・水平前後
方向負荷、ハ…・・・水平左右方向負荷、二・・・・・
・体重ライン、■・・・・・・接地時間、■・・・・・
・体重レベルまでの時間、■・・・・・・最大衝撃圧、
■…・・・最大衝撃圧までの時間、■・・・・・・最小
圧、■・・・…最小圧までの時間、０１１・・・・・・
最大突進圧（スラスト）、０１２・・・・・・最大突進
圧までの時間、０１５・・・…最大衝撃圧から最大突進
圧までの時間、０１６・・・・・・体重ィンパルス′ｗ
ｄｔ、０１７・・・・・・垂直ィンパルス′Ｆｚｄｔ、
０１８・・…・平均垂直圧ＪＦｚｄｔ／ｔ、０１９・・
・・・・除体垂直ィンパルス′Ｆｚｄｔ−Ｊｗｄｔ、０
２０・・・・・・最大ブレーキング力、０２１・・・・
・・最大ブレーキング力までの時間、０２４・・・・・
・ブレーキング時間、０２６…・・・ブレーキングィン
パルスノＦｙｄｔ、０２７……平均ブレーキング力′Ｆ
ｙｄｔ／ブレーキング時間、０２８……最大推進力（キ
ック力）、０２９・・・・・・最大推進力までの時間、
０３２・・・・・・推進力時間、０３４・・・・・・推
進ィンパルスー′Ｆｙｄｔ、０３５……平均推進力′−
Ｆｙｄｔ／推進力時間。第４図 素ｌ図 秦２図 弟３図 第５図 第６図 第７図 第８図 弟ｑ図 秦 ！０図 髪′！図 寿ｌ２図A...heavy vertical load, mouth...horizontal longitudinal load, c...horizontal left and right load, two...
・Weight line, ■・・・・・・ Ground contact time, ■・・・・・・
・Time to reach body weight level, ■・・・Maximum impact pressure,
■...Time to maximum impact pressure, ■...Minimum pressure, ■...Time to minimum pressure, 011...
Maximum thrust pressure (thrust), 012...Time to maximum thrust pressure, 015...Time from maximum impact pressure to maximum thrust pressure, 016...Body weight impulse'w
dt, 017... Vertical impulse 'Fzdt,
018... Average vertical pressure JFzdt/t, 019...
...Debody vertical impulse 'Fzdt-Jwdt, 0
20... Maximum braking force, 021...
...Time to maximum braking force, 024...
・Braking time, 026...Breaking impulse pressure Fydt, 027...Average braking force'F
ydt/braking time, 028... Maximum propulsive force (kick force), 029... Time to maximum propulsive force,
032... Propulsive force time, 034... Propulsive impulse-'Fydt, 035... Average propulsive force'-
Fydt/propulsion time. Figure 4 Figure l Figure Qin 2 Figure Younger brother 3 Figure 5 Figure 6 Figure 7 Figure 8 Younger brother q Figure Qin! 0 figure hair'! Diagram 12

Claims (1)

【特許請求の範囲】 １ 底主体上面５に開口した複数条のスリツト状溝６を
足裏の負荷の軌跡に対して横方向に設け、踵部１１から
不踏部１２に至る該溝６は爪先部１３方向に傾斜して形
成し、爪先部１３附近の該溝６は踵部１１方向へ傾斜し
て形成したことを特徴とした運動靴底１。 ２ 前記の踵部１１から不踏部１２に至つて爪先部１３
方向へ傾斜して形成されたスリツト状溝６の傾斜角が、
踵部１１附近では傾斜角を急に、不踏部１２附近に至る
に従つて傾斜角を順次緩やかに形成したことを特徴とし
た特許請求の範囲第１項記載の運動靴底１。[Scope of Claims] 1. A plurality of slit-like grooves 6 opened on the upper surface 5 of the sole main body are provided in a direction transverse to the trajectory of the load on the sole, and the grooves 6 extending from the heel part 11 to the non-stepping part 12 are A sole 1 of an athletic shoe characterized in that the groove 6 near the toe part 13 is formed to be inclined in the direction of the heel part 11. 2 From the heel part 11 to the non-stepping part 12 to the toe part 13
The angle of inclination of the slit-like groove 6 formed to be inclined in the direction is
2. The athletic shoe sole 1 according to claim 1, wherein the inclination angle is steeper near the heel portion 11 and gradually becomes gentler as it approaches the non-stepping portion 12.