JP2014212852A - Work shoe - Google Patents

Work shoe Download PDF

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JP2014212852A
JP2014212852A JP2013090582A JP2013090582A JP2014212852A JP 2014212852 A JP2014212852 A JP 2014212852A JP 2013090582 A JP2013090582 A JP 2013090582A JP 2013090582 A JP2013090582 A JP 2013090582A JP 2014212852 A JP2014212852 A JP 2014212852A
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rubber
sole
hardness
front part
shoe
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智 石沢
Satoshi Ishizawa
智 石沢
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Kohshin Rubber Co Ltd
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Kohshin Rubber Co Ltd
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole-and-heel integral units
    • A43B13/42Filling materials located between the insole and outer sole; Stiffening materials
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00Footwear with health or hygienic arrangements
    • A43B7/32Footwear with health or hygienic arrangements with shock-absorbing means

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a work shoe sole and a rubber boot sole which are improved in the front core shape without damaging the comfortableness of wearing and improved in the load bearing against the external load to the upper part of the toe without using any insertion in the sole and the manufacturing method.SOLUTION: The work shoe sole and the rubber boot sole is characterized by that the rubber system molding material constituting the front part around the toe core through the rear end of the toe core of the sole after molded has a type A durometer hardness of 71-99 written in JISK-6253, and the hardness of the molding material of the shoe sole body except for the front part around the toe core through the rear end of the toe core after molded has a type A durometer hardness of 40-70 written in JISK-6253, and the manufacturing method is provided.

Description

安全靴の性能を向上させるための靴底の改良に関する。 The present invention relates to improvement of a shoe sole for improving the performance of safety shoes.

図3および図4に示すように、従来の安全靴は、つま先を衝撃などの外部荷重から保護する目的において、先芯1などの形状の改良により外部荷重に対する耐荷重性の増強を図ったり、ゴム底1の肉厚内の爪先部から不踏部に到る部分または一部に適当な板厚を有する芯板を埋設しゴム底の変形を抑制することは一般に周知である。しかしながらこれらの先芯および靴底は成形時に部品点数が多くなることで、成形作業者が誤ってずれて配置してしまった場合には十分な耐荷重性を得ることができず、結果、重大事故につながる可能性が大となる。更には工程が増えコスト高になっていた。 As shown in FIG. 3 and FIG. 4, the conventional safety shoes are designed to enhance load resistance against external loads by improving the shape of the tip 1 etc. in order to protect the toes from external loads such as impacts. It is generally well known that a core plate having an appropriate thickness is embedded in a part or a part from the toe portion within the thickness of the rubber bottom 1 to the tread portion to suppress deformation of the rubber bottom. However, these toes and soles have a large number of parts during molding, and if the molding operator misplaces them, they cannot obtain sufficient load resistance. There is a greater possibility of an accident. Furthermore, the process increased and the cost was high.

すなわち、図3に示す、特許文献1には、本発明は、スカート部の平坦部の反り上がりが防止され、スカート部の平坦部の表底への食い込みが防止され、外部荷重に対する耐荷重性が向上する安全靴用先芯を提供する、として、内側に延長する平坦部分が形成されたスカート部の平坦部と、このスカート部の平坦部から立ち上がりアーチ状に形成されたアーチ部とからなり、安全靴の爪先を保護する安全靴用先芯において、前記スカート部の平坦部に前記アーチ立ち上がり部の外側より外部に突出する突出部分とを備えることを特徴とする、安全靴用先芯である点が開示されている。   That is, in Patent Document 1 shown in FIG. 3, the present invention prevents the flat portion of the skirt portion from warping, prevents the flat portion of the skirt portion from biting into the front bottom, and is resistant to external loads. Provides a toe for safety shoes that improves, and comprises a flat part of a skirt part formed with a flat part extending inward and an arch part formed in an arch shape rising from the flat part of the skirt part A safety shoe toe for protecting a toe of a safety shoe, wherein the flat part of the skirt portion includes a projecting portion that projects outward from the outside of the arch rising part. Some points are disclosed.

すなわち、図4に示す、特許文献2には、本発明は、底ゴムの変形を抑制するための底部を提供する、として、ゴム底に適当な板厚を有する芯板を埋設して成ることを特徴とする安全作業靴が、開示されている。
さらに、特許文献3には、発泡材料を用いた安全靴用靴底が開示され、靴底の爪先部分に相当する部分に剛性材料からなる部材を配置して作製することが示されている。しかし、靴底本体が発泡材料で作られているため、爪先に圧迫または衝撃等の外部荷重を受けたときには、爪先部が沈み込んでしまうため外部荷重に対する耐荷重性が不十分である。
That is, in Patent Document 2 shown in FIG. 4, the present invention provides a bottom portion for suppressing deformation of the bottom rubber, and a core plate having an appropriate plate thickness is embedded in the rubber bottom. A safety work shoe is disclosed.
Further, Patent Document 3 discloses a shoe sole for safety shoes using a foam material, and shows that a member made of a rigid material is arranged and formed on a portion corresponding to a toe portion of the shoe sole. However, since the sole body is made of a foam material, the toe portion sinks when an external load such as compression or impact is applied to the toe, so that the load resistance against the external load is insufficient.

特開平6−154009公報JP-A-6-154209 実開昭52−104449公報Japanese Utility Model Publication No. 52-104449 実開昭52−165733公報Japanese Utility Model Publication No. 52-165733

従来の安全靴用先芯では、図3に示すように改良した先芯1においては、表底の硬さが低いと圧迫または衝撃等の外部荷重を受けたとき、スカート部の平坦部6は内側へ反り上がりを発生しにくいものの、表底に食い込み、中底8とアーチ部との間隙がさらに狭くなってしまうという問題もあった。
更に図4に示すように従来の安全靴では、改良したゴム底においても、板厚を有する芯材を挿入してもゴム底が柔らかければ圧迫または衝撃等の外部荷重を受けたとき、表底に食い込み、もしくは先芯スカート部の平坦部が内側へ反り上がり、図5に示すように中底9とアーチ部との間隙がさらに狭くなってしまうという問題もあった。
よって、先芯1およびゴム底7に示されるように先芯の形状の改良、もしくはゴム底に芯板を挿入しただけでは、外部荷重に対する耐荷重性の向上には限界があった。

ゴム底に適当な板厚を有する芯板を埋設して成る底であっても、底部にある程度の剛性(硬さ)が必要であることは一般に周知されている。しかしながら、靴底が硬すぎると歩き難く疲れやすいため、作業者に負担となっていた。
本発明の目的は、上記問題点を改善するために、硬いゴムと柔らかいゴムを適材適所に配置することにより、スカート部の表底への食い込みが防止され、外部荷重に対する耐荷重性が向上した歩きやすい安全靴用底部を提供することにある。
In the conventional tip for safety shoes, the tip 1 improved as shown in FIG. 3 shows that when the hardness of the bottom surface is low, the flat portion 6 of the skirt portion is subjected to an external load such as compression or impact. Although it is difficult to warp inward, there is also a problem that the gap between the insole 8 and the arch portion is further narrowed by biting into the front bottom.
Further, as shown in FIG. 4, in the conventional safety shoes, even when the rubber bottom is soft even when the core having a thickness is inserted even when the rubber bottom is soft, when the external load such as compression or impact is applied. There is also a problem that the bottom bites into the bottom or the flat portion of the leading skirt portion warps inward, and the gap between the midsole 9 and the arch portion is further narrowed as shown in FIG.
Therefore, as shown in the tip 1 and the rubber bottom 7, there is a limit to the improvement of the load resistance against an external load only by improving the shape of the tip or by inserting the core plate into the rubber bottom.

It is generally known that a certain degree of rigidity (hardness) is required at the bottom even if the bottom is formed by embedding a core plate having an appropriate thickness on the rubber bottom. However, if the shoe sole is too hard, it is difficult to walk and tired easily.
The purpose of the present invention is to improve the load resistance against external load by preventing hard bite and soft rubber from entering the bottom of the skirt by placing hard rubber and soft rubber at the right place to improve the above problems. It is to provide a bottom for safety shoes that is easy to walk.

本発明は、上記の課題を解決するため、本発明者が鋭意努力をした結果、達成したものである。
すなわち、本発明は、靴底の爪先から先芯後端部付近の前方部を構成するゴム系成形材料の成形後の硬度が、JIS
K−6253記載のデュロメータAで、71〜99であり、当該先芯から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JIS
K−6253記載のデュロメータAで、40〜70であることを特徴とする安全靴の靴底である。
また、本発明の作業靴の靴底は、爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JIS
K−6253記載のデュロメータAで、40〜70であり、かつ、踏み付け部とかかと部では、殆ど同じ硬度とすることができる。
さらに、本発明の安全靴の靴底は、爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JIS
K−6253記載のデュロメータAで、40〜70であり、かつ、踏み付け部とかかと部で異なる硬度とすることもできる。
The present invention has been accomplished as a result of intensive efforts by the inventor to solve the above-described problems.
That is, according to the present invention, the hardness after molding of the rubber-based molding material constituting the front portion near the tip end rear end portion from the toe of the shoe sole is JIS.
The durometer A described in K-6253 is 71 to 99, and the hardness after molding of the molding material of the sole body portion excluding the front portion in the vicinity of the rear end portion of the front end from the front end is JIS.
It is a durometer A described in K-6253, and is a shoe sole of safety shoes characterized by being 40-70.
Further, the shoe sole of the working shoe of the present invention has a hardness after molding of the molding material of the sole body portion excluding the front portion near the tip end rear end portion from the toe.
In the durometer A described in K-6253, it is 40 to 70, and almost the same hardness can be obtained in the stepping portion and the heel portion.
Further, the shoe sole of the safety shoe of the present invention has a hardness after molding of the molding material of the sole body portion excluding the front portion near the tip end rear end portion from the toe, according to JIS.
In the durometer A described in K-6253, the hardness may be 40 to 70, and the hardness may be different between the stepping portion and the heel portion.

本発明の安全靴の靴底を構成するゴム系成形材料は、天然ゴム、イソプレンゴム、エポキシ化天然ゴム、スチレンブタジエンゴム、ブタジエンゴム、クロロプレンゴム、二トリルゴム、水素化ニトリルゴム、エチレンプロピレンゴム、アクリルゴム、フッ素ゴムからなる群れより選ばれる1種以上のゴム系材料とすることができる。   The rubber-based molding material constituting the sole of the safety shoe of the present invention is natural rubber, isoprene rubber, epoxidized natural rubber, styrene butadiene rubber, butadiene rubber, chloroprene rubber, nitrile rubber, hydrogenated nitrile rubber, ethylene propylene rubber, One or more rubber-based materials selected from the group consisting of acrylic rubber and fluororubber can be used.

さらにまた本発明は、靴底の爪先から先芯後端部付近の前方部を構成するゴム系成形材料の成形後の硬度が、JIS
K−6253記載のデュロメータAで、71〜99であり、当該爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JIS
K−6253記載のデュロメータAで、40〜70である安全靴の靴底の製造において、金型にゴム系成形材料をセットするに際して、まず、靴底の爪先から先芯後端部付近の前方部を構成する硬質のゴム系成形材料を靴底の金型の先端部をセットし、先端部がセットし終わった後、金型の温度が冷却しないうちに先端部のゴム系成形材料に比して、硬度の低いゴム系成形材料を金型にセットして、金型の蓋を密閉し、加圧、加熱して加硫を行って一体化することを特徴とする安全靴の靴底の製造方法である。
また、本発明の作業靴の靴底の成形方法においては、前方部の注入が終わり、加熱して先端部以外の靴底本体部と加圧して接着することにより一体化することもできる。
Furthermore, according to the present invention, the hardness after molding of the rubber-based molding material constituting the front part in the vicinity of the rear end of the tip from the toe of the shoe sole is JIS.
The durometer A described in K-6253 is 71 to 99, and the hardness after molding of the molding material of the sole body portion excluding the front portion near the tip end rear end portion from the toe is JIS.
In manufacturing a shoe sole for a safety shoe 40 to 70 with a durometer A described in K-6253, when setting a rubber-based molding material on a mold, first, from the toe of the shoe sole to the front part near the rear end of the tip Set the tip of the mold of the shoe sole with the hard rubber molding material that constitutes the part, and after the tip has been set, the temperature of the mold has not cooled down and compared to the rubber molding compound of the tip. The sole of a safety shoe is characterized in that a rubber-based molding material with low hardness is set in a mold, the mold lid is sealed, and pressure is applied and heated to vulcanize and integrate. It is a manufacturing method.
Moreover, in the method for forming the sole of the work shoe of the present invention, the injection of the front portion is completed, and the shoe can be integrated by heating and pressurizing and bonding to the shoe sole body other than the tip.

本発明は、靴底の爪先から先芯後端部付近の前方部を構成するゴム系成形材料の成形後の硬度が、JIS
K−6253記載のデュロメータAで、71〜99であり、当該爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JIS
K−6253記載のデュロメータAで、40〜70である安全靴の靴底の構造をしているため、爪先上部に外部荷重が加わった際に、靴底前方部に硬質部を設けることで先芯の沈み込みが減少し、より防護性が高い構造が得られ、履き心地も優れている安全靴の靴底を得られる。また、長時間の作業が行われるガレキ撤去作業等の作業環境の改善に貢献できる。
In the present invention, the hardness after molding of the rubber-based molding material constituting the front part in the vicinity of the rear end of the tip from the toe of the shoe sole is JIS
The durometer A described in K-6253 is 71 to 99, and the hardness after molding of the molding material of the sole body portion excluding the front portion near the tip end rear end portion from the toe is JIS.
In the durometer A described in K-6253, because it has the structure of the sole of a safety shoe 40-70, when an external load is applied to the top of the toe, a hard part is provided at the front part of the sole. The sinking of the lead is reduced, a structure with higher protection is obtained, and the sole of a safety shoe having excellent comfort is obtained. Moreover, it can contribute to the improvement of the working environment such as debris removal work in which long work is performed.

本発明の靴底に先芯を乗せた状態の平面図The top view of the state which put the tip on the sole of the present invention 本発明の靴底に先芯を乗せた状態の側面図The side view of the state which put the tip on the sole of the present invention 従来の安全靴用先芯の外観図External view of conventional safety shoe tip ゴム底に芯板を埋設した従来の安全靴用靴底を使用した靴の断面図Cross-sectional view of a shoe using a conventional shoe sole for safety shoes with a core plate embedded in the rubber sole ゴム底に芯板を埋設した従来の安全靴用靴底の爪先上部が外部荷重を受けた時の断面図Sectional view when the top of the toe of a conventional safety shoe sole with a core plate embedded in the rubber sole is subjected to an external load 本発明の成型プロセス図Molding process diagram of the present invention

本発明で用いることが出来るゴム系高分子材料としては、天然ゴム、エポキシ化天然ゴム(ENR)、イソプレンゴム(IR)、スチレンブタジエンゴム(SBR)、ブタジエンゴム(BR)、クロロプレンゴム(CR)、ニトリルゴム(NBR)、水素化ニトリルゴム(HNBR)、エチレンプロピレンゴム(EPDM)などが挙げられる。
天然ゴム配合の可塑剤としては、ナフテン系オイル、パラフィン系オイルが挙げられる。

また、本発明で用いることが出来るゴム系配合の老化防止剤としては、2,2’-メチレンビス(4-エチル-6-tert-ブチルフェノール)(MBETB)等ビスフェノール系、モノ(α-メチルベンジル)(DTBMP)フェノール等モノフェノール系、6-エトキシ-1,2-ジヒドロ-2,2,4-トリメチルキノリン(ETMDQ)等アミン-ケトン系、2-メルカプトベンゾイミダゾール(MBI)等ベンツイミダゾール系、オクチル化ジフェニルアミン(ODPA)等芳香族第二級アミン系などが挙げられる。

さらに、本発明で用いることが出来る加硫助剤としては、酸化亜鉛、炭酸亜鉛、水酸化カルシウム等が挙げられる。
Rubber-based polymer materials that can be used in the present invention include natural rubber, epoxidized natural rubber (ENR), isoprene rubber (IR), styrene butadiene rubber (SBR), butadiene rubber (BR), and chloroprene rubber (CR). Nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), ethylene propylene rubber (EPDM), and the like.
Examples of plasticizers containing natural rubber include naphthenic oils and paraffinic oils.

Further, the rubber-based anti-aging agent that can be used in the present invention includes 2,2′-methylenebis (4-ethyl-6-tert-butylphenol) (MBETB) and other bisphenol-based, mono (α-methylbenzyl) (DTBMP) Monophenols such as phenol, amine-ketones such as 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline (ETMDQ), benzimidazoles such as 2-mercaptobenzimidazole (MBI), octyl And aromatic secondary amines such as diphenylamine (ODPA).

Furthermore, examples of the vulcanization aid that can be used in the present invention include zinc oxide, zinc carbonate, and calcium hydroxide.

本発明で用いることが出来る補強剤としては、カーボンブラック、ホワイトカーボン(シリカ)、塩基性炭酸マグネシウム、活性化炭酸カルシウム、ハイスチレン樹脂、クマロン・インデン樹脂、フェノール・ホルムアルデヒド樹脂、ビニルトルエン共重合樹脂、フェノール樹脂繊維などが挙げられる。

本発明で用いることが出来るゴム系配合の充填剤としては、炭酸カルシウム、炭酸マグネシウム、シリカ、カーボンブラック、クレーなどが挙げられる。
その他、超微粉けい酸マグネシウム、タルク、シリカ、ゼオライト、チタン酸カリウム、・ウィスカ、珪藻土、硅砂、硫酸バリウム、硫酸アルミニウム、硫酸カルシウム等無機充填剤、再生ゴム、ゴム粉末、エボナイト粉末、セラック、木粉、ココナットやし殻粉、コルク粉末、セルロースパウダ、休場日粉体、木材パルプ等有機充填剤、雲母粉、グラファイト、ガラス繊維、ガラス珠、火山ガラス中空体、カーボン繊維、炭素中空珠、シリコーン樹脂微粉末、シリカ球状微粒子、アラミド繊維、アルミナ繊維等なども補強材、充填剤として挙げられる。
Reinforcing agents that can be used in the present invention include carbon black, white carbon (silica), basic magnesium carbonate, activated calcium carbonate, high styrene resin, coumarone / indene resin, phenol / formaldehyde resin, vinyltoluene copolymer resin. And phenol resin fibers.

Examples of rubber-based fillers that can be used in the present invention include calcium carbonate, magnesium carbonate, silica, carbon black, and clay.
In addition, super fine magnesium silicate, talc, silica, zeolite, potassium titanate, whisker, diatomaceous earth, cinnabar, barium sulfate, aluminum sulfate, calcium sulfate and other inorganic fillers, recycled rubber, rubber powder, ebonite powder, shellac, wood Powder, coconut husk powder, cork powder, cellulose powder, holiday powder, wood pulp, organic fillers, mica powder, graphite, glass fiber, glass beads, volcanic glass hollow body, carbon fiber, carbon hollow beads, silicone Resin fine powder, silica spherical fine particles, aramid fiber, alumina fiber, and the like can also be mentioned as reinforcing materials and fillers.

本発明で用いることが出来る加硫促進剤としては、ヘキサメチレンテトラミン(H)等アルデヒドアンモニア系、トリメチルチオ尿素等チオウレア系、1,3-ジフェニルグアニジン(DPG)等グアニジン系、ジベンゾチアゾリルジズルフィド(MBTS)等チアゾール系、N-tert-ブチルベンゾチアゾール-2-スルフェンアミド(BBS)等スルフェンアミド系、テトラメチルチウラムジスルフィド(TMTD)等チウラム系、ジブチルジチオカルバミン酸亜鉛(ZnBDC)等、ジチオカルバミン酸塩系などが挙げられる。

本発明で用いることが出来る加硫剤としては、硫黄、塩化硫黄、酸化マグネシウム等無機加硫剤、p-キノオンジオキシム等オキシム系、ヘキサメチレン・ジアミン等ポリアミン系等が挙げられる。
Examples of the vulcanization accelerator that can be used in the present invention include aldehyde ammonia such as hexamethylenetetramine (H), thiourea such as trimethylthiourea, guanidine such as 1,3-diphenylguanidine (DPG), and dibenzothiazolyl dizul. Thiodos such as fido (MBTS), sulfenamides such as N-tert-butylbenzothiazole-2-sulfenamide (BBS), thiurams such as tetramethylthiuram disulfide (TMTD), zinc dibutyldithiocarbamate (ZnBDC), etc. Examples include dithiocarbamate.

Examples of the vulcanizing agent that can be used in the present invention include inorganic vulcanizing agents such as sulfur, sulfur chloride, and magnesium oxide, oxime systems such as p-quinone dioxime, and polyamine systems such as hexamethylene and diamine.

図1に、本発明の靴底に先芯を乗せた状態の平面図を示す。
1は、先芯部分を示す。
2〜4は、靴底であり、2が前方部、3が踏み付け部、4がかかと部である。本願発明は、前方部2がゴム系高分子材料でできており、安全靴として先芯1の沈み込みを防ぐため、硬度はデュロメータAで71〜99である。踏み付け部3、かかと部4がゴム系高分子材料でできており、作業や歩行のしやすさなどから硬度はデュロメータAで40〜70である。
本発明で用いられるゴム系成形材料としては、天然ゴム、イソプレンゴムエポキシ化天然ゴム、スチレンブタジエンゴム、ブタジエンゴム、クロロプレンゴム、二トリルゴム、水素化ニトリルゴム、エチレンプロピレンゴム、アクリルゴム、フッ素ゴムこれらの1種類の材料もしくは2種類以上の混合物の使用が可能であり、成形性や安全靴としての機能が問題なければこれに限定されるものではない。ここで、取り扱いやすさや経済的な観点から、天然ゴムが好ましい。
In FIG. 1, the top view of the state which put the tip on the shoe sole of this invention is shown.
Reference numeral 1 denotes a tip portion.
2-4 are soles, 2 is a front part, 3 is a stepping part, 4 is a heel part. In the present invention, the front portion 2 is made of a rubber-based polymer material, and the hardness of the durometer A is 71 to 99 in order to prevent the tip 1 from sinking as a safety shoe. The stepping portion 3 and the heel portion 4 are made of a rubber-based polymer material, and the hardness is 40 to 70 with a durometer A because of ease of work and walking.
Rubber-based molding materials used in the present invention include natural rubber, isoprene rubber, epoxidized natural rubber, styrene butadiene rubber, butadiene rubber, chloroprene rubber, nitrile rubber, hydrogenated nitrile rubber, ethylene propylene rubber, acrylic rubber, fluoro rubber, etc. It is possible to use one kind of material or a mixture of two or more kinds, and there is no limitation to this as long as there is no problem with moldability and safety shoes. Here, natural rubber is preferred from the viewpoints of ease of handling and economical.

前方部2と踏み付け部3は、天然ゴムによる同時加硫接着のため、接着強度が強固であり、分離破断しにくい。したがって、靴底としての一体感は強固であるが、屈曲部は軟質部で覆われるもしくは軟質部材で構成されるようにするのが望ましい。   The front portion 2 and the stepping portion 3 have a strong adhesive strength and are difficult to break apart due to simultaneous vulcanization adhesion with natural rubber. Accordingly, it is desirable that the sense of unity as a shoe sole is strong, but the bent portion is covered with a soft portion or configured with a soft member.

硬質部、軟質部のゴム系成形材料は、天然ゴム、イソプレンゴムエポキシ化天然ゴム、スチレンブタジエンゴム、ブタジエンゴム、クロロプレンゴム、二トリルゴム、水素化ニトリルゴム、エチレンプロピレンゴム、アクリルゴム、フッ素ゴムなどのゴム系高分子材料に、補強材や充填剤、可塑剤の混合量を適宜変えて硬さ調節をする。
ゴム系高分子材料に充填剤を多めに添加するまたは、可塑剤を少なめに混合すれば、硬質部分ができ、ゴム系高分子材料に充填剤を少なめに添加するまたは、可塑剤を多めに混合すれば、軟質部分ができる。
顔料は、好みに応じて、市販のものを1種、または2種以上混合して使うことができる。
Hard and soft rubber molding materials include natural rubber, isoprene rubber, epoxidized natural rubber, styrene butadiene rubber, butadiene rubber, chloroprene rubber, nitrile rubber, hydrogenated nitrile rubber, ethylene propylene rubber, acrylic rubber, fluorine rubber, etc. The hardness is adjusted by appropriately changing the amount of the reinforcing material, filler, and plasticizer mixed with the rubber polymer material.
Add a large amount of filler to the rubber-based polymer material or mix a small amount of plasticizer to form a hard part. Add a small amount of filler to the rubber-based polymer material or mix a large amount of plasticizer. If so, a soft part is formed.
The pigments can be used alone or in combination of two or more according to preference.

本発明のプレス成型に用いる一般的な天然ゴム組成物の代表的配合は天然ゴム100質量部に対して老化防止剤0.5〜5質量部、加硫助剤1〜10質量部、補強材50〜150質量部、充填剤、20〜200質量部、顔料0.1〜5質量部、加硫促進剤1〜5質量部、加硫剤1〜10質量部であり、その他粘着剤や滑剤等を適宜用いることが出来る。 A typical blend of a general natural rubber composition used for press molding of the present invention is 0.5 to 5 parts by weight of an anti-aging agent, 1 to 10 parts by weight of a vulcanization aid, and a reinforcing material with respect to 100 parts by weight of natural rubber. 50 to 150 parts by weight, filler, 20 to 200 parts by weight, pigment 0.1 to 5 parts by weight, vulcanization accelerator 1 to 5 parts by weight, vulcanizing agent 1 to 10 parts by weight, and other adhesives and lubricants Etc. can be used as appropriate.

請求項5
本発明のプレス成型方法は、未加硫状態の硬質ゴム、軟質ゴムをモールドにセットし、加圧、加熱することで一体化した当該靴底が得られる。
請求項6
また、加硫状態の硬質ゴムと未加硫状態の軟質ゴムをモールドにセットし、加圧、加熱することでも一体化した当該靴底が得られる。
請求項7
さらには、未加硫状態の硬質ゴムと加硫状態の軟質ゴムをモールドにセットし、加圧、加熱することでも一体化した当該靴底が得られる。
硬質ゴムおよび軟質ゴムの仕込み重量は硬質部をつま先からどのくらい確保したいか、モールドの形状により任意に調整できる。
Claim 5
In the press molding method of the present invention, an unvulcanized hard rubber or soft rubber is set in a mold, and the shoe sole integrated by pressing and heating is obtained.
Claim 6
Moreover, the integrated shoe sole can be obtained by setting a vulcanized hard rubber and an unvulcanized soft rubber in a mold, and applying pressure and heating.
Claim 7
Furthermore, an integrated shoe sole can be obtained by setting an unvulcanized hard rubber and a vulcanized soft rubber in a mold, and applying pressure and heating.
The charged weight of hard rubber and soft rubber can be arbitrarily adjusted depending on the shape of the mold and how much the hard part is desired to be secured from the toes.

次に実施例で用いた硬質ゴム組成物の配合例の一例を示す。
天然ゴム70質量部、合成ゴム30質量部、老化防止剤4質量部、加硫助剤6質量部、補強材45質量部、充填剤20質量部、顔料2質量部、加硫促進剤2質量部、加硫剤3質量部。

また、実施例で用いた軟質ゴム組成物の配合例の一例を示す。
天然ゴム80質量部、合成ゴム20質量部、老化防止剤4質量部、加硫助剤6質量部、補強材10質量部、充填剤45質量部、顔料2質量部、加硫促進剤2質量部、加硫剤3質量部。
Next, an example of a blending example of the hard rubber composition used in the examples is shown.
70 parts by weight of natural rubber, 30 parts by weight of synthetic rubber, 4 parts by weight of anti-aging agent, 6 parts by weight of vulcanization aid, 45 parts by weight of reinforcing material, 20 parts by weight of filler, 2 parts by weight of pigment, 2 parts by weight of vulcanization accelerator Part, 3 parts by mass of vulcanizing agent.

Moreover, an example of the compounding example of the soft rubber composition used in the Example is shown.
80 parts by weight of natural rubber, 20 parts by weight of synthetic rubber, 4 parts by weight of anti-aging agent, 6 parts by weight of vulcanization aid, 10 parts by weight of reinforcing material, 45 parts by weight of filler, 2 parts by weight of pigment, 2 parts by weight of vulcanization accelerator Part, 3 parts by mass of vulcanizing agent.

図6に基づいて説明する。金型に合わせた所定の形状の未加硫状態の硬質ゴム材、及び金型に合わせた所定の形状の未加硫状態の軟質ゴム材を金型(モールド)にセットする。
硬質ゴム材及び軟質ゴム材の仕込み重量は、硬質部をつま先からどれぐらいの長さまで確保するかによって、若しくは金型(モールド)の形状により調節することが出来る。
次いで金型(モールド)のフタを下ろし、加圧、加熱する。温度130〜170℃、3〜15分加熱する。
実施例1においては、靴底前方部には加硫後の硬度が75となる未加硫状態のゴムを配置し、踏み付け部および踵部には加硫後の硬度が61となる未加硫状態のゴムを配置してなる靴底を使用したものである。
尚、前方部の強度確認試験条件はJIS T 8101記載の安全靴 圧迫試験H種で行った。
This will be described with reference to FIG. An unvulcanized hard rubber material having a predetermined shape that matches the mold and an unvulcanized soft rubber material having a predetermined shape that matches the mold are set in a mold.
The charged weight of the hard rubber material and the soft rubber material can be adjusted depending on how long the hard portion is secured from the toe or by the shape of the mold (mold).
Next, the mold (mold) lid is lowered, and pressure and heating are performed. Heat at 130-170 ° C. for 3-15 minutes.
In Example 1, an unvulcanized rubber having a hardness after vulcanization of 75 is disposed at the front portion of the shoe sole, and an unvulcanized rubber having a hardness after vulcanization of 61 is provided at the stepping portion and the heel portion. The shoe sole formed by placing the rubber in the state is used.
The test for confirming the strength of the front part was performed by the safety shoe compression test H type described in JIS T8101.

実施例2においては、靴底前方部には加硫後の硬度が82となる加硫状態の硬質ゴムと踏み付け部および踵部には加硫後の硬度が61となる未加硫状態の軟質ゴムをモールドにセットし、加圧、加熱することで一体化する製造方法を用いて得られた靴底を使用したものである。尚、加圧、加熱時の温度と時間は130〜170℃、3〜15分とした。
尚、前方部の強度確認試験条件はJIS T 8101記載の安全靴 圧迫試験H種で行った。
In Example 2, a vulcanized hard rubber having a hardness after vulcanization of 82 at the front part of the shoe sole and an unvulcanized soft rubber having a hardness of 61 after vulcanization at the stepping part and the heel part A shoe sole obtained by using a manufacturing method in which rubber is set in a mold and integrated by pressurization and heating is used. The temperature and time during pressurization and heating were 130 to 170 ° C. and 3 to 15 minutes.
The test for confirming the strength of the front part was performed by the safety shoe compression test H type described in JIS T8101.

実施例3においては、靴底前方部には加硫後の硬度が95となる未加硫状態の硬質ゴムと踏み付け部および踵部には加硫後の硬度が55となる加硫状態の軟質ゴムをモールドにセットし、加圧、加熱することで一体化する製造方法を用いて得られた靴底を使用したものである。尚、加圧、加熱時の温度と時間は130〜170℃、3〜15分とした。
尚、前方部の強度確認試験条件はJIS T 8101記載の安全靴 圧迫試験H種で行った。
In Example 3, an unvulcanized hard rubber having a hardness after vulcanization of 95 is applied to the front portion of the shoe sole, and a vulcanized soft resin having a hardness of 55 after vulcanization is applied to the stepping portion and the heel portion. A shoe sole obtained by using a manufacturing method in which rubber is set in a mold and integrated by pressurization and heating is used. The temperature and time during pressurization and heating were 130 to 170 ° C. and 3 to 15 minutes.
The test for confirming the strength of the front part was performed by the safety shoe compression test H type described in JIS T8101.

(比較例1)
靴底前方部には硬度62のゴムを配置し、踏み付け部および踵部には硬度55のゴムを配置してなる靴底を使用したものである。
尚、前方部の強度確認試験条件はJIS T 8101記載の安全靴 圧迫試験H種で行った。

(比較例2)
靴底前方部には硬度85のゴムを配置し、踏み付け部および踵部には硬度85のゴムを配置してなる靴底を使用したものである。
尚、前方部の強度確認試験条件はJIS T 8101記載の安全靴 圧迫試験H種で行った。

(比較例3)
靴底前方部には硬度45のゴムを配置し、踏み付け部および踵部には硬度40のゴムを配置してなる靴底を使用したものである。
尚、前方部の強度確認試験条件はJIS T 8101記載の安全靴 圧迫試験H種で行った。

(Comparative Example 1)
A shoe sole is used in which rubber having a hardness of 62 is disposed in the front portion of the shoe sole, and rubber having a hardness of 55 is disposed in the stepping portion and the heel portion.
The test for confirming the strength of the front part was performed by the safety shoe compression test H type described in JIS T8101.

(Comparative Example 2)
A rubber shoe having a hardness of 85 is disposed in the front portion of the shoe sole, and a shoe sole in which rubber having a hardness of 85 is disposed in the stepping portion and the heel portion is used.
The test for confirming the strength of the front part was performed by the safety shoe compression test H type described in JIS T8101.

(Comparative Example 3)
A rubber sole having a hardness of 45 is disposed in the front portion of the shoe sole, and a shoe sole in which rubber having a hardness of 40 is disposed in the stepping portion and the heel portion is used.
The test for confirming the strength of the front part was performed by the safety shoe compression test H type described in JIS T8101.

性能テスト
履き心地(履いた時の感触)
◎:とてもよい
○:よい
△:あまりよくない
×:よくない
前方部の強度
○ JIS T8101 安全靴に示す圧迫試験方法に準じ、合格のとき
× JIS T8101 安全靴に示す圧迫試験方法に準じ、不合格のとき

テスト結果を表1に示す。
Performance test comfort (feel when worn)
◎: Very good ○: Good △: Not good ×: Unsatisfactory front part strength ○ Conforms to the compression test method shown in JIS T8101 safety shoes, Pass × Not conforming to the compression test method shown in JIS T8101 safety shoes When passed

Table 1 shows the test results.

Figure 2014212852
Figure 2014212852

安全靴の前方部を硬質材料にし、踏み付け部から踵部を軟質材料にしたことで、良好な履き心地を有すると同時に、万が一、爪先上部に外部荷重が集中的にかかっても、先芯の沈み込みが少ないため、労働災害を防ぐことが出来、長時間の作業が行われるガレキ撤去作業等の作業環境の改善に貢献できる。   The front part of the safety shoes is made of a hard material and the heel part of the safety shoe is made of a soft material. Because there is little sinking, it is possible to prevent occupational accidents and to contribute to the improvement of the working environment such as rubble removal work where long work is performed.

1 先芯
2 前方部
3 ソール部
4 かかと部
5 先芯1
6 スカート部の平坦部
7 ゴム底1
8 中底1
9 中底2
DESCRIPTION OF SYMBOLS 1 Tip 2 Front part 3 Sole part 4 Heel part 5 Tip 1
6 Flat part of skirt part 7 Rubber bottom 1
8 Insole 1
9 Insole 2

Claims (7)

靴底の爪先から先芯後端部付近の前方部を構成するゴム系成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、71〜99であり、当該爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、40〜70であることを特徴とする安全靴の靴底また、それを用いた安全靴。 The hardness after molding of the rubber-based molding material constituting the front part in the vicinity of the rear end of the tip from the toe of the shoe sole is 71 to 99 in the durometer A described in JISK-6253. The sole of the safety shoe, which has a durometer A described in JISK-6253 and has a hardness of 40 to 70, except for the front part near the front part, is 40 to 70. Had safety shoes. 爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、40〜70であり、かつ、踏み付け部とかかと部では、殆ど同じ硬度であることを特徴とする請求項1に記載の安全靴の靴底また、それを用いた安全靴。 The hardness after molding of the molding material of the sole body part excluding the front part near the rear end of the tip from the toe is 40 to 70 in the durometer A described in JISK-6253, and in the stepping part and the heel part. The sole of the safety shoe according to claim 1, wherein the shoe has the same hardness, and the safety shoe using the same. 爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、40〜70であり、かつ、踏み付け部とかかと部で異なる硬度であることを特徴とする請求項1に記載の安全靴の靴底また、それを用いた安全靴。 The hardness after molding of the molding material of the shoe sole body excluding the front part near the rear end of the toe core from the toe is 40 to 70 in the durometer A described in JISK-6253, and at the stepping part and the heel part. The sole of the safety shoe according to claim 1, or a safety shoe using the same. 靴底の爪先から先芯後端部付近の前方部を構成するゴム系成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、71〜99であり、当該爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、40〜70である安全靴の靴底の製造において、金型にゴム系成形材料をセットするに際して、まず、靴底の爪先から先芯後端部付近の前方部を構成する硬質のゴム系成形材料を靴底の金型の前方部にセットし、前方部がセットし終わった後、金型の温度が冷却しないうちに前方部のゴム系成形材料に比して、硬度の低いゴム系成形材料を金型の前方部より後方にセットして、金型の蓋を密閉し、加圧、加熱して加硫を行って一体化することを特徴とする安全靴の靴底の製造方法また、それを用いた安全靴。   The hardness after molding of the rubber-based molding material constituting the front part in the vicinity of the rear end of the tip from the toe of the shoe sole is 71 to 99 in the durometer A described in JISK-6253. In the manufacture of the sole of a safety shoe, the hardness after molding of the molding material of the sole body part excluding the front part near the part is 40 to 70 with the durometer A described in JISK-6253, the rubber mold is formed on the mold. When setting the material, first set the hard rubber molding material that forms the front part near the rear end of the tip from the toe of the shoe sole to the front part of the mold of the shoe sole, and the front part has been set After that, before the mold temperature cools down, set the rubber molding material with lower hardness compared to the rubber molding material in the front part behind the mold front part and seal the mold lid And vulcanize by pressurization and heating to integrate. Method for manufacturing a sole for all shoes also safety shoes using the same. 靴底の爪先から先芯後端部付近の前方部を構成するゴム系成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、71〜99であり、当該爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、40〜70である安全靴の靴底の製造において、未加硫状態の硬質ゴムと未加硫状態の軟質ゴムをモールドにセットし、加圧、加熱することで一体化することを特徴とする請求項4に記載の安全靴の靴底の製造方法また、それを用いた安全靴。 The hardness after molding of the rubber-based molding material constituting the front part in the vicinity of the rear end of the tip from the toe of the shoe sole is 71 to 99 in the durometer A described in JISK-6253. In the manufacture of the sole of a safety shoe, the hardness after molding of the molding material of the sole body part excluding the front part in the vicinity of the part is 40 to 70 in the durometer A described in JISK-6253, the hardened unvulcanized state The method for producing the sole of a safety shoe according to claim 4, wherein the rubber and the unvulcanized soft rubber are set in a mold, and are integrated by pressurization and heating. safety shoes. 靴底の爪先から先芯後端部付近の前方部を構成するゴム系成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、71〜99であり、当該爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、40〜70である安全靴の靴底の製造において、加硫状態の硬質ゴムと未加硫状態の軟質ゴムをモールドにセットし、加圧、加熱することで一体化することを特徴とする請求項4に記載の安全靴の靴底の製造方法また、それを用いた安全靴。   The hardness after molding of the rubber-based molding material constituting the front part in the vicinity of the rear end of the tip from the toe of the shoe sole is 71 to 99 in the durometer A described in JISK-6253. Hard rubber in a vulcanized state in the manufacture of the sole of a safety shoe having a durometer A of JISK-6253 with a hardness after molding of the molding material of the sole body part excluding the front part in the vicinity of the part of 40 to 70 A method for producing a sole of a safety shoe according to claim 4, wherein the unvulcanized soft rubber is set in a mold, and is integrated by pressurization and heating. shoes. 靴底の爪先から先芯後端部付近の前方部を構成するゴム系成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、71〜99であり、当該爪先から先芯後端部付近の前方部を除く靴底本体部の成形材料の成形後の硬度が、JISK−6253記載のデュロメータAで、40〜70である安全靴の靴底の製造において、未加硫状態の硬質ゴムと加硫状態の軟質ゴムをモールドにセットし、加圧、加熱することで一体化することを特徴とする請求項4に記載の安全靴の靴底の製造方法また、それを用いた安全靴。
The hardness after molding of the rubber-based molding material constituting the front part in the vicinity of the rear end of the tip from the toe of the shoe sole is 71 to 99 in the durometer A described in JISK-6253. In the manufacture of the sole of a safety shoe, the hardness after molding of the molding material of the sole body part excluding the front part in the vicinity of the part is 40 to 70 in the durometer A described in JISK-6253, the hardened unvulcanized state The method for producing a sole of a safety shoe according to claim 4, wherein the rubber and the vulcanized soft rubber are set in a mold, and are integrated by pressurization and heating, and safety using the same shoes.
JP2013090582A 2013-04-23 2013-04-23 Work shoe Pending JP2014212852A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108440810A (en) * 2018-03-20 2018-08-24 唐旭 A kind of damping vibration combination object and the shoes using the damping vibration combination object
CN110194855A (en) * 2019-05-27 2019-09-03 浙江盖瑞莉娃文化科技有限公司 A kind of production method of elastomer shock-absorbing sole
CN110862596A (en) * 2019-12-18 2020-03-06 中国化工集团曙光橡胶工业研究设计院有限公司 Boot sole rubber material for flame retardance, wear resistance, skid resistance and static electricity resistance
CN111393722A (en) * 2020-05-25 2020-07-10 际华三五三九制鞋有限公司 High-hardness hard rubber compound applied to anti-smashing protective boot vamp

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52165733U (en) * 1976-06-09 1977-12-15
JPS57164604U (en) * 1981-04-09 1982-10-16
JPS5997601U (en) * 1982-12-21 1984-07-02 株式会社アシックス athletic shoe soles
JPH046902U (en) * 1990-05-09 1992-01-22
JPH0541406U (en) * 1991-11-13 1993-06-08 株式会社シモン Safety shoes with toe plate
JPH08214912A (en) * 1995-02-17 1996-08-27 Aoki Anzengutsu Seizo Kk Shoe and its manufacture
JP2000279203A (en) * 1999-03-31 2000-10-10 Moon Star Co Outsole
JP2001029104A (en) * 1999-07-15 2001-02-06 Meriito Kk Antistatic shoe sole structure
JP2006101983A (en) * 2004-10-01 2006-04-20 Maeda Yuukifu Footwear

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52165733U (en) * 1976-06-09 1977-12-15
JPS57164604U (en) * 1981-04-09 1982-10-16
JPS5997601U (en) * 1982-12-21 1984-07-02 株式会社アシックス athletic shoe soles
JPH046902U (en) * 1990-05-09 1992-01-22
JPH0541406U (en) * 1991-11-13 1993-06-08 株式会社シモン Safety shoes with toe plate
JPH08214912A (en) * 1995-02-17 1996-08-27 Aoki Anzengutsu Seizo Kk Shoe and its manufacture
JP2000279203A (en) * 1999-03-31 2000-10-10 Moon Star Co Outsole
JP2001029104A (en) * 1999-07-15 2001-02-06 Meriito Kk Antistatic shoe sole structure
JP2006101983A (en) * 2004-10-01 2006-04-20 Maeda Yuukifu Footwear

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108440810A (en) * 2018-03-20 2018-08-24 唐旭 A kind of damping vibration combination object and the shoes using the damping vibration combination object
CN110194855A (en) * 2019-05-27 2019-09-03 浙江盖瑞莉娃文化科技有限公司 A kind of production method of elastomer shock-absorbing sole
CN110862596A (en) * 2019-12-18 2020-03-06 中国化工集团曙光橡胶工业研究设计院有限公司 Boot sole rubber material for flame retardance, wear resistance, skid resistance and static electricity resistance
CN111393722A (en) * 2020-05-25 2020-07-10 际华三五三九制鞋有限公司 High-hardness hard rubber compound applied to anti-smashing protective boot vamp

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