JPH0420604B2 - - Google Patents
Info
- Publication number
- JPH0420604B2 JPH0420604B2 JP1428689A JP1428689A JPH0420604B2 JP H0420604 B2 JPH0420604 B2 JP H0420604B2 JP 1428689 A JP1428689 A JP 1428689A JP 1428689 A JP1428689 A JP 1428689A JP H0420604 B2 JPH0420604 B2 JP H0420604B2
- Authority
- JP
- Japan
- Prior art keywords
- elastic body
- compression
- compression holes
- heel
- sole
- 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
Links
- 230000006835 compression Effects 0.000 claims description 24
- 238000007906 compression Methods 0.000 claims description 24
- 239000011359 shock absorbing material Substances 0.000 claims description 6
- 210000000474 heel Anatomy 0.000 description 12
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 241000269978 Pleuronectiformes Species 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 241001663490 Dicologlossa cuneata Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000000459 calcaneus Anatomy 0.000 description 1
- KRGNPJFAKZHQPS-UHFFFAOYSA-N chloroethene;ethene Chemical group C=C.ClC=C KRGNPJFAKZHQPS-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、靴底用衝撃吸収材に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a shock absorbing material for shoe soles.
（従来の技術）
出願人は先に、特願昭59−135818号（特開昭61
−13902号）によつて剛性板間に低反発弾性発泡
体を介在接着させた衝撃吸収材を提案した。(Prior art) The applicant previously filed Japanese Patent Application No. 59-135818 (Japanese Patent Laid-Open No. 61
-13902) proposed a shock absorbing material in which a low-resilience foam was interposed and bonded between rigid plates.
このような衝撃吸収材を備えた靴底は、通常の
歩行またはジヨギングのような軽い走行において
は、比較的優れた衝撃吸収性と着地安定性を示す
が、テニス、バスケツト、サツカー、長距離ラン
ニング、ジヤンプ時のように着地衝撃圧が大きい
場合は、着地の初期において踵骨の下方の突出部
に対応する部分に体重圧の３倍以上の負荷が集中
してかかるため、着地衝撃圧を踵骨の下方の突出
部に対応する部分において充分吸収できず、しか
もこのような低反発弾性発泡体は圧縮永久歪が大
きく、長期にわたる使用によつて圧縮変形してし
まい耐久性に欠ける欠点があつた。 Shoe soles equipped with such shock-absorbing materials exhibit relatively good shock absorption and landing stability during light running such as normal walking or jogging, but they are also used in tennis, basketball, soccer, and long-distance running. When the landing impact pressure is large, such as during a jump, a load of more than three times the body weight pressure is concentrated on the part corresponding to the lower protrusion of the calcaneus at the initial stage of landing, so the landing impact pressure is transferred to the heel. It cannot be absorbed sufficiently in areas corresponding to the lower protrusions of bones, and in addition, such low-resilience foams have a large compression set, and have the disadvantage of being compressed and deformed with long-term use, resulting in a lack of durability. Ta.
（発明の解決しようとする問題点）
この発明は着地衝撃圧が大きい場合でも、衝撃
吸収性が良好で、しかも耐久性に優れた靴底用衝
撃吸収材を提供しようとするものである。(Problems to be Solved by the Invention) The present invention aims to provide a shock absorbing material for shoe soles that has good shock absorption properties and excellent durability even when the landing impact pressure is large.
（問題点を解決するための手段）
以下この発明を実施図面によつて説明すれば、
この発明はJISK6301スプリング式硬さ試験Ａ形
による硬度が20°〜60°の軟質弾性体１の垂直方向
に、その中心部１４１を狭窄した多数の圧縮孔１
４，１４…を設けたことを特徴とする靴底用衝撃
吸収材を発明の要旨とするものである。(Means for solving the problem) This invention will be explained below with reference to the drawings.
This invention consists of a soft elastic body 1 having a hardness of 20° to 60° according to JISK6301 spring type hardness test type A, and a large number of compression holes 1 narrowed in the center 141 in the vertical direction.
The gist of the invention is a shock absorbing material for shoe soles characterized by providing the following.
この発明において軟質弾性体１は天然ゴム、合
成ゴム等のゴム、塩化ビニル樹脂、塩化ビニルエ
チレン共重合体樹脂、塩化ビニル酢酸ビニル共重
合体樹脂、エチレン酢酸ビニル共重合体樹脂、
1.2ポリブタジエン樹脂、ポリウレタン等の合成
樹脂によつて構成されている。この発明において
軟質弾性体１の硬度を20°〜60°に限定したのは、
硬度がそれ以下となれば圧縮変形性による衝撃吸
収性は良くなるが弾性回復力が低下し、圧縮永久
歪が大きくなり耐久性が低下する欠点があり、ま
た硬度がそれ以上となれば、圧縮変形性が低下し
て衝撃吸収性が低下するからである。 In this invention, the soft elastic body 1 includes rubber such as natural rubber and synthetic rubber, vinyl chloride resin, vinyl chloride ethylene copolymer resin, vinyl chloride vinyl acetate copolymer resin, ethylene vinyl acetate copolymer resin,
1.2 Constructed from synthetic resins such as polybutadiene resin and polyurethane. In this invention, the hardness of the soft elastic body 1 is limited to 20° to 60° because
If the hardness is lower than this, the shock absorption property due to compression deformability will be improved, but the elastic recovery power will be reduced, the compression set will be large, and the durability will be reduced. This is because the deformability decreases and the shock absorbability decreases.
この発明において圧縮孔１４，１４…は、その
垂直方向における断面形状が多角形、円形、だ円
形状等の適宜形状に形成されていてよい。そして
この発明において、圧縮孔１４，１４…をポンチ
等で弾性体１を打抜き形成すれば、打抜き時にお
いて弾性体１がその中心部において矢印で示すよ
うに圧縮された状態で打抜かれるため、打抜き後
ポンチ等の打抜き具をひき抜いた際、圧縮状態が
開放され、弾性体１の弾性回復力によつてその中
心部１４１において圧縮孔１４，１４…が狭窄さ
れることになるので、圧縮孔１４，１４…の形成
が簡単である。 In the present invention, the compression holes 14, 14, . . . may have an appropriate cross-sectional shape in the vertical direction, such as a polygon, a circle, or an ellipse. In this invention, if the compression holes 14, 14... are formed by punching out the elastic body 1 using a punch or the like, the elastic body 1 will be punched out in a compressed state as shown by the arrow at its center during punching. When a punching tool such as a punch is pulled out after punching, the compressed state is released, and the compression holes 14, 14... are narrowed in the center part 141 due to the elastic recovery force of the elastic body 1, so that the compression The holes 14, 14... are easily formed.
この発明において圧縮孔１４，１４…を弾性体
の外側辺部１１において、その内側辺部１２より
もその表面積占有率が大であるように、具体的に
は圧縮孔１４，１４…が弾性体１に全体的に同一
大きさに形成されている場合は、圧縮孔１４，１
４…をその外側辺部１１に集中して配置してお
き、また圧縮孔１４，１４…を弾性体１に全体的
に均一に配置する場合、その外側辺部１１に配置
される圧縮孔１４′，１４′…をその内側辺部１２
に配置される圧縮孔１４″，１４″…よりも大きく
形成しておき、その外側辺部１１を靴底２の踵部
外側辺部２３に、その内側辺部１２を靴底２の踵
部の内側辺部２２に位置させて、靴底の踵部に埋
設しておけば、通常の歩行、走行において靴底２
の踵部外側辺部２３に負荷される着地初期の最大
衝撃圧は弾性体の外側辺部１１に形成された圧縮
孔１４，１４…によつて一層効果的に吸収され、
靴底２の踵部外側辺部２３の着地に連続して靴底
２の踵部内側辺部２２が着地する際、弾性体１の
内側辺部１２に形成された圧縮孔１４，１４…が
その外側辺部１１に形成された圧縮孔１４，１４
…がよりもその表面積占有率が小さいため、その
内側辺部１２において、その外側辺部１１よりも
圧縮変形率が抑制されることになり、靴底２の踵
部の内側辺部２２が過度に内転されることなく、
オーバープロネーシヨンが防止されることになり
好都合である。 In this invention, the compression holes 14, 14... are formed in the elastic body so that the surface area occupancy is larger on the outer side 11 of the elastic body than on the inner side 12. 1, the compression holes 14, 1 are formed to have the same size overall.
4 are arranged in a concentrated manner on the outer side 11, and when the compression holes 14, 14... are arranged uniformly throughout the elastic body 1, the compression holes 14 arranged on the outer side 11 ', 14'... on its inner side 12
are formed larger than the compression holes 14'', 14'', etc., arranged in If it is placed in the inner side 22 of the shoe sole and embedded in the heel of the shoe sole, the sole 2
The maximum impact pressure applied to the outer side 23 of the heel at the initial stage of landing is absorbed more effectively by the compression holes 14, 14, . . . formed in the outer side 11 of the elastic body.
When the heel inner side 22 of the sole 2 lands on the ground following the landing of the heel outer side 23 of the sole 2, the compression holes 14, 14... formed in the inner side 12 of the elastic body 1 are compressed. Compression holes 14, 14 formed in the outer side 11
Since the surface area occupation rate is smaller than that of , the compressive deformation rate is suppressed on the inner side 12 than on the outer side 11, and the inner side 22 of the heel of the sole 2 is excessively without being adducted to
This is advantageous because overpronation is prevented.
（発明の作用効果）
この発明は以上のように構成されているので、
これを靴底の踵部に埋設して使用すれば、着地衝
撃圧が踵部に負荷された場合、圧縮孔１４，１４
…が圧縮変形されて圧縮孔１４，１４…によつて
衝撃が吸収され、踵部における着地衝撃圧の負荷
が解除された場合、軟質弾性体１の弾性回復力に
よつて急速に原形に復帰し、次の歩行走行工程で
の踵部における着地衝撃圧の負荷に備えられる。(Actions and Effects of the Invention) Since this invention is configured as described above,
If this is used by embedding it in the heel part of the sole of the shoe, when landing impact pressure is applied to the heel part, the compression holes 14, 14
... is compressively deformed and the impact is absorbed by the compression holes 14, 14..., and when the load of landing impact pressure on the heel is released, it quickly returns to its original shape by the elastic recovery force of the soft elastic body 1. However, it is prepared for the impact pressure of landing on the heel during the next walking and running process.
そしてこの発明において、圧縮孔１４，１４…
がその中心部１４１によつて狭窄されているため
圧縮孔１４，１４…の下方部１４２で地面の放射
方向からの衝撃圧を広い範囲で吸収し、また圧縮
孔１４，１４…で吸収できなかつた衝撃圧を、そ
の上方部１４３で壁面１４０に沿つて放射方向に
分散させるため衝撃緩和性も良好で、しかも圧縮
孔１４，１４…のくりかえし圧縮変形によつても
圧縮孔１４，１４…が損傷されることなく、長期
にわたつて衝撃吸収性と弾性回復力を維持し、耐
久性に優れたものとすることができる。 In this invention, the compression holes 14, 14...
is narrowed by the center part 141, so the lower part 142 of the compression holes 14, 14... absorbs the impact pressure from the radial direction of the ground over a wide range, and the compression holes 14, 14... cannot absorb it. Since the impact pressure is dispersed in the radial direction along the wall surface 140 in the upper part 143, the impact mitigation property is also good.Moreover, the compression holes 14, 14... It is possible to maintain shock absorption and elastic recovery power over a long period of time without being damaged, and to have excellent durability.
図面は実施例を示すものであつて、第１図はそ
の見取り図であり、第２図は第１図−線にお
ける断面図であり、第３図はこの発明の靴底用衝
撃吸収材を靴底に埋設した状態の要部断面図であ
る。
符合の説明、１……軟質弾性体、１１……外側
辺部、１２……内側辺部、１４（１４′，１４″）
……圧縮孔、１４０……壁面、１４１……中心
部、１４２……下方部、１４３……上方部、２…
…靴底、２２……踵部内側辺部、２３……踵部外
側辺部、３……ウエツジソール、４……ミツドソ
ール。
The drawings show an embodiment, in which FIG. 1 is a sketch thereof, FIG. 2 is a sectional view taken along the line shown in FIG. It is a sectional view of the main part in a state buried in the bottom. Description of symbols, 1... Soft elastic body, 11... Outer side, 12... Inner side, 14 (14', 14'')
... Compression hole, 140 ... Wall surface, 141 ... Center part, 142 ... Lower part, 143 ... Upper part, 2 ...
... Sole, 22... Inner side of heel, 23... Outer side of heel, 3... Wedge sole, 4... Mid sole.
Claims (1)
硬度が20°〜60°の軟質弾性体１の垂直方向に、そ
の中心部１４１を狭窄した多数の圧縮孔１４，１
４…を設けたことを特徴とする靴底用衝撃吸収
材。1 A large number of compression holes 14, 1 narrowed in the center 141 in the vertical direction of a soft elastic body 1 with a hardness of 20° to 60° according to JISK6301 spring type hardness test type A.
4. A shock absorbing material for shoe soles, characterized by having...
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1428689A JPH02193602A (en) | 1989-01-23 | 1989-01-23 | Impact absorption material for sole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1428689A JPH02193602A (en) | 1989-01-23 | 1989-01-23 | Impact absorption material for sole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02193602A JPH02193602A (en) | 1990-07-31 |
| JPH0420604B2 true JPH0420604B2 (en) | 1992-04-03 |
Family
ID=11856850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1428689A Granted JPH02193602A (en) | 1989-01-23 | 1989-01-23 | Impact absorption material for sole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02193602A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100871737B1 (en) * | 2007-08-31 | 2008-12-05 | 박장원 | Buffer structure for sole |
-
1989
- 1989-01-23 JP JP1428689A patent/JPH02193602A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02193602A (en) | 1990-07-31 |
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