JP4198305B2

JP4198305B2 - Shoe sole

Info

Publication number: JP4198305B2
Application number: JP2000206347A
Authority: JP
Inventors: 佐藤隆一; 片岡英明
Original assignee: 弘進ゴム株式会社
Priority date: 2000-07-07
Filing date: 2000-07-07
Publication date: 2008-12-17
Anticipated expiration: 2020-07-07
Also published as: JP2002017404A

Description

【０００１】
【産業上の利用分野】
本発明は、水産加工場や食品工場等において用いている防滑性射出成形長靴に主に適用される靴底に関するものである。
【０００２】
【従来の技術】
従来から、ポリ塩化ビニル製の射出成形長靴はその耐油性の良さから水産加工場や食品工場で作業に従事する人達に使用されてきており、その靴底は水や油で濡れた床面での転倒を防止するため、様々な工夫がされてきた。例えば、底の配合に高重合度のポリ塩化ビニルを使用してより柔軟性と弾性を付加したものや、エチレン酢酸ビニル共重合体の発泡架橋底を後から貼り付けたものなどが考案されてきた。
【０００３】
また、射出成形長靴以外のものにあっては、ガラス繊維や織布、不織布等の繊維状物やセラミックなどを混合することで滑りを防止しようとするものや繊維状物を直接靴底に貼り合わせて成るもの等があった。
【０００４】
【発明が解決しようとする課題】
しかしながら、ガラス繊維やセラミックはステンレス床等を傷付けるし、また柔軟性を増したり、発泡底といった方法は確かに靴底接地面と床面との間の摩擦抵抗を上げ滑りにくくなるものの、安定して歩行が出来るというほどの防滑効果はなかった。
【０００５】
本発明は斯様な従来例の欠点に着目して創案したものである。
【０００６】
【課題を解決するための手段】
踏みつけ部とヒール部に底意匠パターンを設けた靴底の前記底意匠パターンを、左右の両端を開口し、しかも、靴底の先後方向に対し直交する条溝部と、平滑状で、エッジ部が断面ほぼ９０°の接地面を備えた突条部を靴底の先後方向に交互に配して横縞模様状と成し、かつ、前記突条部を少くとも一対以上に分割する縦条溝部によって前記条溝部を互いに連通させて構成すると共に、前記踏みつけ部の前記底意匠パターン中の前記踏みつけ部と前記ヒール部間に介在する踏まず部寄りには、該底意匠パターンの前記突条部乃至条溝部に対して交叉する方向に配し、平滑状で、エッジ部が断面ほぼ９０°の接地面を備えた交叉突条部と前記条溝部に連通する交叉条溝部を交互に配して構成したパターン部分を設けた構成とする。
【０００７】
本発明に係る靴底は、ポリ塩化ビニル１００重量部に対して総可塑剤量を１００〜１２０重量部とし、その内の４０〜８０重量部をポリエステル系可塑剤を配合して成る耐油性を有する素材を用いることが望ましく、柔らかければ柔らかいほど良いが、耐摩耗性を考慮するとＨＤＡ５０〜６０（ＪＩＳＫ７２１５）のものを使用するのが望ましく、この硬さを出すのには、前記の通り、ポリ塩化ビニル１００重量部に対して総可塑剤量を１００〜１２０重量部とすることで実現する。その内の４０〜８０重量部をポリエステル系可塑剤を使用することで耐油性を増強する。
【０００８】
【実施例】
図面は本発明に係る靴底の一実施例を示し、図１は正面図、図２は側面図である。
【０００９】
実施例の靴底Ａはアッパー部と一体に成形される射出成形長靴に適用したもので、ポリ塩化ビニル１００重量部、総可塑剤量１００重量部および安定剤５重量部から成る素材を用いて常法に従って成形したものである。
【００１０】
また、靴底Ａの底面は、踏みつけ部Ａａとヒール部Ａｂおよびこれらの間に介在させた踏まず部Ａｃとで構成し、踏みつけ部Ａａとヒール部Ａｂには底意匠パターン１Ａ，１Ｂを各部Ａａ，Ａｂの全域に設けてある。
【００１１】
底意匠パターン１Ａ，１Ｂは、左右の両端を開口した条溝部２，…と平滑状の接地面３ａを備えた突条部３，…を靴底Ａの先後方向に交互に配して横縞模様と成し、かつ、前記突条部３，…を一対以上に分割する縦条溝部４，…によって前記条溝部２，…を互いに連通させて構成する。
【００１２】
条溝部２は、所謂底意匠パターンの存在による踏みつけ部Ａａとヒール部Ａｂの歩行時における曲がりにくさを回避するためであるため、歩行方向すなわち靴底Ａの先後方向に対して直交する方向に配すること（条溝部２に沿って配した突条部３も必然的に条溝部２と方向性を同じくすることになる）が望ましいが、厳密な意味で直交する方向に配する必要はない。また、他方において、条溝部２は、歩行時の滑りの要因となる床面上の水や油を取り込むスペースとして機能するから、該機能を果たす程度の一定以上の幅を設けるべきである。
【００１３】
前記突条部３は接地面３ａを平滑状とすることにより床面との摩擦力が増大し、また、エッジ部（実施例は断面ほぼ９０°）によっての引っ掻き力を得られる。
【００１４】
従って、突条部３は長ければ長い程防滑効果を期待できるが、反面、突条部３，３間に介在する条溝部２に水や油が滞留することにより防滑効果が低下するため、前記の縦条溝部４を設けることにより該突条部３を２つ又は３つに分割してある。
【００１５】
縦条溝部４は、条溝部２に滞留する水や油の除去と、突条部３を分割して、分割した個々の突条部３部分を個々独立した可動性を持たせることにより歩行時の荷重移動（ヒール後端〜ヒール外側〜踏まず部外側〜踏付け部〜拇指球〜爪先）に伴う底意匠への荷重を局部的に捕らえ荷重を集中させることで摩擦力、引っ掻き力を高めている。
【００１６】
また、前記踏みつけ部Ａａの底意匠パターン１Ａは、ヒール部Ａｂの底意匠パターン１Ｂにないパターン部分１Ａ´を設けてある。
【００１７】
該パターン部分１Ａ´は、底意匠パターン１Ａ中の前記踏まず部Ａｃよりに設けてあり、底意匠パターン１Ａを構成する前記突条部３乃至条溝部２に対して交叉する方向に配した交叉突条部６と前記条溝部２に連通する交叉条溝部７を交互に配して構成し、その方向性により、前記先後方向に対する左右方向の防滑効果を期待するもので、該パターン部分１Ａ´を構成する。
【００１８】
交叉突条部６と交叉条溝部７は突条部３と条溝部２と方向性が異なるだけで残余の点はこれらと同様に構成する。
【００１９】
実施例試作品に関する比較試験を下記に示す。

【００２０】
なお、本発明は、例えばスニーカータイプの靴底（ゴムを素材としてプレス成形する）にも適用できるが、長靴のようにゆったりした足入れとなっている靴に適用するに好適である。
【００２１】
【発明の効果】
一般靴に比べゆったりした足入れとなっている長靴において、長靴と足がフィットしないだけ足裏の荷重位置と底意匠パターン位置がマッチしない場合が多く、スリップし易い状況となっているが、本発明によれば前記の通りの構成であるので、歩行時の接地〜踏付け〜踏み蹴りと一連の歩行運動でグリップ力を得られる底意匠及びパターン領域を広くし、ルーズな足入れでも高い防滑性を得られる長靴を提供できる。
【図面の簡単な説明】
【図１】正面図。
【図２】側面図。
【符号の説明】
Ａａ踏みつけ部
Ａｂヒール部
Ａｃ踏まず部
１Ａ底意匠パターン部
１Ａ´ パターン部分
２条溝部
３突条部
３ａ接地面
４縦条溝部
６交叉突条部
７交叉条溝部[0001]
[Industrial application fields]
The present invention relates to a shoe sole mainly applied to an anti-slip injection-molded boot used in fisheries processing plants, food factories, and the like.
[0002]
[Prior art]
Conventionally, injection-molded boots made of polyvinyl chloride have been used by people engaged in work at fisheries processing plants and food factories because of their oil resistance, and their soles are on the floor surface wet with water or oil. Various devices have been devised to prevent the fall. For example, it has been devised to add flexibility and elasticity by using polyvinyl chloride with a high degree of polymerization in the composition of the bottom, and to which a foamed crosslinked bottom of an ethylene vinyl acetate copolymer is attached later. It was.
[0003]
For items other than injection-molded boots, those that try to prevent slipping by mixing fibrous materials such as glass fibers, woven fabrics, and non-woven fabrics, and ceramics, or fibrous materials are directly attached to the shoe sole. There were things that were combined.
[0004]
[Problems to be solved by the invention]
However, glass fiber and ceramic damage the stainless steel floor, etc., and the method of increasing the flexibility and the foamed bottom will certainly increase the frictional resistance between the shoe ground contact surface and the floor surface, but it will not be slippery, but it will be stable. There was no anti-slip effect enough to walk.
[0005]
The present invention has been made by paying attention to the drawbacks of such a conventional example.
[0006]
[Means for Solving the Problems]
The bottom design pattern of the shoe sole in which the bottom design pattern is provided on the stepping portion and the heel portion, the left and right ends are opened , and the groove portion orthogonal to the front and rear direction of the shoe sole is smooth , and the edge portion is smooth. By means of a longitudinal groove portion that is formed in a horizontal stripe pattern by alternately arranging ridge portions having a ground contact surface with a cross-section of approximately 90 ° in the front and rear direction of the shoe sole, and dividing the ridge portion into at least one pair or more The groove portion is configured to communicate with each other, and the stepped portion of the bottom design pattern is located near the stepped portion interposed between the stepping portion and the heel portion in the bottom design pattern of the stepping portion. Arranged in the direction intersecting with the groove part, and the crossing groove part with a smooth shape and the edge part provided with a ground contact surface having a cross section of approximately 90 ° and the intersecting groove part communicating with the groove part are arranged alternately. The pattern portion is provided.
[0007]
The shoe sole according to the present invention has an oil resistance of 100 to 120 parts by weight of polyvinyl chloride and 100 to 120 parts by weight of the total plasticizer, and 40 to 80 parts by weight of the polyester plasticizer. It is desirable to use a material having softness, and the softer the better, but considering wear resistance, it is desirable to use HDA 50-60 (JIS K 7215). As described above, this is realized by setting the total plasticizer amount to 100 to 120 parts by weight with respect to 100 parts by weight of polyvinyl chloride. Oil resistance is enhanced by using a polyester plasticizer in 40 to 80 parts by weight of them.
[0008]
【Example】
The drawings show an embodiment of a shoe sole according to the present invention, FIG. 1 is a front view, and FIG. 2 is a side view.
[0009]
The shoe sole A of the embodiment is applied to an injection-molded boot which is formed integrally with the upper portion, and uses a material composed of 100 parts by weight of polyvinyl chloride, a total amount of plasticizer of 100 parts by weight and a stabilizer of 5 parts by weight. Molded according to a conventional method.
[0010]
Further, the bottom surface of the shoe sole A is composed of a stepping portion Aa, a heel portion Ab, and a stepless portion Ac interposed therebetween, and the

bottom design patterns

1A and 1B are formed on the stepping portion Aa and the heel portion Ab. It is provided in the whole area of Aa and Ab.
[0011]
The

bottom design patterns

1A, 1B are horizontally striped by alternately arranging the groove portions 2,... Opened at the left and right ends, and the protrusion portions 3,... Having the smooth grounding surface 3a in the front-rear direction of the shoe sole A. And the groove portions 2,... Are communicated with each other by vertical groove portions 4, which divide the protrusion portions 3,.
[0012]
Article grooves 2, because in order to avoid the bending difficulty in walking the treading portion Aa and the heel portion Ab due to the presence of the so-called bottom design pattern, the direction of Cartesian relative front-to-rear direction of the walking direction, that sole A placing the (protrusions 3 arranged along the strip groove 2 also will also inevitably conditions groove 2 and direction) it is desirable, must be disposed in a direction Cartesian strictly There is no. On the other hand, the groove portion 2 functions as a space for taking in water or oil on the floor surface that causes slipping during walking, and therefore should have a certain width or more so as to fulfill the function.
[0013]
By making the ground contact surface 3a smooth, the protrusion 3 increases the frictional force with the floor surface, and obtains a scratching force by an edge portion (in the embodiment, the cross section is approximately 90 °).
[0014]
Accordingly, the longer the protrusion 3 is, the longer the anti-slip effect can be expected. On the other hand, the anti-slip effect decreases due to water or oil remaining in the groove 2 interposed between the

protrusions

3 and 3. By providing the vertical groove 4, the ridge 3 is divided into two or three.
[0015]
The vertical groove portion 4 removes water and oil remaining in the groove portion 2 and divides the ridge portion 3 so that the divided individual ridge portion 3 portions have independent mobility when walking. The frictional force and scratching force are enhanced by locally capturing the load on the bottom design associated with the load movement (back of the heel-outer side of the heel-outer side of the stepping part-stepping part-thumb ball-toe) and concentrating the load. ing.
[0016]
Further, the bottom design pattern 1A of the stepping portion Aa is provided with a pattern portion 1A ′ that is not present in the bottom design pattern 1B of the heel portion Ab.
[0017]
The pattern portion 1A ′ is provided from the stepped portion Ac in the bottom design pattern 1A, and is crossed in a direction intersecting with the protruding portion 3 to the groove portion 2 constituting the bottom design pattern 1A. The protrusions 6 and the cross groove portions 7 communicating with the groove portions 2 are alternately arranged, and due to the directionality, the anti-slip effect in the lateral direction with respect to the front-rear direction is expected. Configure.
[0018]
The crossing ridge 6 and the crossing groove 7 are different in the directionality from the ridge 3 and the groove 2 but the remaining points are configured in the same manner.
[0019]
The comparative test regarding the example prototype is shown below.

[0020]
The present invention can be applied to, for example, a sneaker-type shoe sole (press-molded using rubber as a raw material), but is suitable for application to a shoe having a loose foot pocket such as a boot.
[0021]
【The invention's effect】
In boots that are more comfortable than ordinary shoes, the load position on the sole and the bottom design pattern position often do not match as long as the boot does not fit the foot, and it is easy to slip. According to the present invention, since it is configured as described above, the bottom design and pattern area where the gripping force can be obtained by a series of walking motions such as grounding, stepping, stepping, and kicking during walking are widened, and high anti-slip is achieved even with loose footsteps. It is possible to provide boots that can be sexy.
[Brief description of the drawings]
FIG. 1 is a front view.
FIG. 2 is a side view.
[Explanation of symbols]
Aa Stepping portion Ab Heel portion Ac Unstepped portion 1A Bottom design pattern portion 1A ′ Pattern portion 2 Groove portion 3 Projection portion 3a Grounding surface 4 Vertical groove portion 6 Cross projection portion 7 Crossing groove portion

Claims

The bottom design pattern of the shoe sole in which the bottom design pattern is provided on the stepping portion and the heel portion, the left and right ends are opened , and the groove portion orthogonal to the front and rear direction of the shoe sole is smooth , and the edge portion is smooth. By means of a longitudinal groove portion that is formed in a horizontal stripe pattern by alternately arranging ridge portions having a ground contact surface with a cross-section of approximately 90 ° in the front and rear direction of the shoe sole, and dividing the ridge portion into at least one pair or more The groove portion is configured to communicate with each other, and the stepped portion of the bottom design pattern is located near the stepped portion interposed between the stepping portion and the heel portion in the bottom design pattern of the stepping portion. Arranged in the direction intersecting with the groove part, and the crossing groove part that is smooth and the edge part has a ground contact surface with a cross section of approximately 90 ° and the intersecting groove part communicating with the groove part are arranged alternately. Shoe sole with a patterned part.