JPH074288B2 - Shoe sole manufacturing method - Google Patents
Shoe sole manufacturing methodInfo
- Publication number
- JPH074288B2 JPH074288B2 JP3131480A JP13148091A JPH074288B2 JP H074288 B2 JPH074288 B2 JP H074288B2 JP 3131480 A JP3131480 A JP 3131480A JP 13148091 A JP13148091 A JP 13148091A JP H074288 B2 JPH074288 B2 JP H074288B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- mold
- lower mold
- polyurethane
- shoe 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/122—Soles
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/0072—Footwear characterised by the material made at least partially of transparent or translucent materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は運動靴の製造法の改良に
関するものであって、更に詳しくは軽量性に富みかつ柔
軟性、屈曲性を有する靴底本体の接地面側に耐摩耗性に
優れた突起を一体的に備えた靴底を提供せんとするもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved method for manufacturing athletic shoes, and more specifically, to a wear resistant material on the ground contact surface side of a shoe sole body which is highly lightweight and has flexibility and flexibility. The sole is to provide a sole having excellent protrusions.
【０００２】[0002]
【従来の技術】従来滑り止め突起を有する靴底の改良と
して、不織布シートにポリウレタンエラストマーの突起
を一体的に結合させた靴底の製造方法として、出願人の
特願昭６３−１４０７２９号に係る発明がある。係る方
法によれば靴製造用金型である下金型内に液状ポリウレ
タン配合物を注流、充填した後、ポリウレタンの被膜層
を有する不織布シートを載せ蓋金型にて挟持しこれを加
熱加圧して所望の靴底を得るものである。しかるところ
この製造法によれば、ポリウレタンの突起を不織布シー
トに結合する際に、その結合力を強化するために不織布
シートに予めポリウレタンの被膜層を塗布する必要があ
った、ところがこの被膜層の塗布作業は極めて煩雑でか
つ、作業の熟練度によってバラツキが生じ、部分的に不
完全な接着部が生ずることもあり、品質が一定しないと
いう欠陥があった。また従来の製造法では、前記不織布
シートが加熱によって硬化しもろくなるおそれがあるた
め、架橋をゆるやかに促進させる方法として、一旦金型
から取り出した靴底を一定時間適宜温度で熟成する工程
が必要とされている。ところが、この熟成にかなり長時
間費やし生産性が著しく悪く大量生産がし難いという欠
陥もあった。更に不織布〔人工皮革〕は水分を吸収して
膨潤し易く軽量性及び耐久性を損なうおそれがあった。
従ってこのような素材の場合は殊に雨天に着用すること
の多いマラソン、ジョギングシューズに装着する靴底と
しては尚満足のいくものではなかった。2. Description of the Related Art As an improvement of a conventional shoe sole having anti-slip projections, a method of manufacturing a shoe sole in which a polyurethane elastomer projection is integrally bonded to a non-woven sheet is disclosed in Japanese Patent Application No. 63-140729 of the applicant. There is an invention. According to such a method, after pouring and filling the liquid polyurethane composition into the lower mold, which is a mold for manufacturing shoes, a non-woven fabric sheet having a polyurethane coating layer is placed and sandwiched by the lid mold and heated. The desired sole is obtained by pressing. However, according to this manufacturing method, when the protrusions of polyurethane were bonded to the nonwoven sheet, it was necessary to apply a coating layer of polyurethane to the nonwoven sheet in advance in order to strengthen the bonding force. The coating work is extremely complicated, and variations occur depending on the skill level of the work, and partially incompletely bonded portions may occur, resulting in a defect that the quality is not constant. Further, in the conventional manufacturing method, the nonwoven fabric sheet may be hardened and brittle by heating, so a step of aging the shoe sole once taken out from the mold at an appropriate temperature for a certain period is required as a method for gently promoting crosslinking. It is said that. However, there has been a defect that the aging takes a considerably long time, the productivity is remarkably deteriorated, and the mass production is difficult. Further, the non-woven fabric (artificial leather) is likely to absorb moisture and swell, which may impair the lightness and durability.
Therefore, such a material is still unsatisfactory as a sole to be worn on marathons and jogging shoes, which are often worn in the rain.
【０００３】[0003]
【発明が解決しようとする課題】本発明者等は前述した
従来品の欠陥に鑑み鋭意研究した結果本発明に至ったも
のであって、その目的とするところは、生産効率が高
く、屈曲性、軽量性を有し、かつ耐摩耗性に優れ、加え
て透明感を加味した漸進なデザインを有する靴底の製造
法を提供せんとするものである。DISCLOSURE OF THE INVENTION The inventors of the present invention have conducted intensive studies in view of the above-mentioned defects of the conventional products, and as a result, the present invention has been achieved. The present invention provides a method for manufacturing a shoe sole that is lightweight, has excellent wear resistance, and has a gradual design in which transparency is taken into consideration.
【０００４】[0004]
【発明を解決するための手段】前記の課題を解決するた
めに本発明者は次のような手段を採用するに至った。即
ち本発明は、溶解したとき透明になる性質を有するポリ
ウレタン繊維でなるシートと、上面凹部内に靴底の滑り
止め突起に対応する複数個の凹嵌部を設けた下金型と、
蓋金型とを準備し、前記下金型の各凹嵌部内に液状ポリ
ウレタン配合物を注流、充填した後、前記シートを下金
型の上面凹部内に収め入れ、該熱溶解シートとポリウレ
タン配合物を蓋金型と下金型とにより挟持し、これを加
熱加圧した後蓋金型を取り除くことによって、透明とな
ったシート上にポリウレタンエラストマーの突起を一体
的に形成する製造方法を採用した。In order to solve the above problems, the present inventor has adopted the following means. That is, the present invention is a sheet made of polyurethane fiber having a property of becoming transparent when melted, a lower mold having a plurality of recessed fitting portions corresponding to anti-slip projections of the shoe sole in the recessed upper surface,
A lid mold is prepared, and after pouring and filling a liquid polyurethane composition into each concave fitting portion of the lower mold, the sheet is put into the upper concave part of the lower mold, and the heat-melting sheet and polyurethane are placed. A method for manufacturing a method of integrally forming protrusions of polyurethane elastomer on a transparent sheet by sandwiching the composition with a lid mold and a lower mold, heating and pressing the mixture, and then removing the lid mold Adopted.
【０００５】[0005]
【作用】本発明によれば、上記のような製造方法を採用
したので、靴底本体となるシートがポリウレタン繊維に
て形成され、かつ熱によって溶解し、透明になる性質の
ものにて形成されるものであるから、靴底本体に従来品
のように予めポリウレタン被膜を塗布する作業を必要と
せず、液状ポリウレタン配合物を注流、充填した金型内
で加熱加圧するのみで熱溶解シート上にポリウレタンエ
ラストマーの突起を一体的に熱融合することができる。
更に金型内から本靴底を取り出した後は熟成のための時
間を要しないため効率的な生産を可能にすることが出来
た。According to the present invention, since the manufacturing method as described above is adopted, the sheet to be the main body of the shoe sole is made of polyurethane fiber and is made of a material which becomes transparent by being melted by heat. Since it does not require the work of applying a polyurethane film to the sole of the shoe in advance, unlike the conventional products, the liquid polyurethane compound can be poured on the heat-melting sheet simply by heating and pressing in the filled mold. The polyurethane elastomer projections can be integrally heat-fused together.
Furthermore, after taking out the shoe sole from the mold, it does not take time for aging, which enables efficient production.
【０００６】[0006]
【実施例】以下本発明の靴底の製造法の一実施例を図面
に従って説明すると、次のとおりである。図１はポリウ
レタンの繊維でなるシート１を示すものであって、加熱
によって溶解したとき透明となる性質を有するものであ
って、該シート１は通常不透明性である。このような素
材としては熱可塑性の繊維であって、ポリウレタンの長
繊維を圧縮成形した不織布がもちいられる。このような
素材としては、例えば株式会社トーネンタピルスのタピ
ルス〔同社登録商標〕がある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the method for manufacturing a shoe sole according to the present invention will be described below with reference to the drawings. FIG. 1 shows a sheet 1 made of polyurethane fibers, which has a property of becoming transparent when melted by heating, and the sheet 1 is usually opaque. As such a material, a non-woven fabric which is a thermoplastic fiber and is formed by compression-molding long polyurethane fibers is used. As such a material, for example, Tapyrus [registered trademark of Tonentapyrus] is available.
【０００７】次に図２は上面凹部８内に靴底の突起２に
対応する凹嵌部３を刻設した下金型４の断面を示してい
る。該下金型４はシート１が載置された時、その接合面
が下金型４に平坦に密接するように少なくともその上面
７が同一平面状となるように形成されている。図３は下
金型４を密閉する平板状の蓋金型５を示すものである。Next, FIG. 2 shows a cross section of a lower mold 4 in which a concave fitting portion 3 corresponding to the protrusion 2 of the shoe sole is formed in the upper concave portion 8. The lower mold 4 is formed so that at least the upper surface 7 thereof is flush with the lower mold 4 when the sheet 1 is placed on the lower mold 4 so that the joint surface of the lower mold 4 closely contacts the lower mold 4 in a flat manner. FIG. 3 shows a flat plate-shaped lid mold 5 for sealing the lower mold 4.
【０００８】次に本発明の製造方法を順次説明すると、
先ず図４に示すように下金型４の上面８側に設けた凹嵌
部３内にそれぞれ液状ポリウレタン配合物６を注流、充
填する。係る液状ポリウレタン配合物６としては、イソ
シアネートＴＶポリマーに顔料を混和し、５０〜１５０
度Ｃに加熱する一方、硬化剤、触媒を８０〜１３０度Ｃ
に加熱しておき、両者を均一に混合、攪拌した後、脱泡
工程を経て金型へ注流、充填する。次に前記下金型４か
ら漏れた余分の液状ポリウレタン配合物６をヘラ等を用
いて除去し、下金型４の上面７と同一平面状となるよう
にレベリングし、次に図５及び図６に示すようにシート
１を前記下金型４の上面７と接するように載置し、その
上から蓋金型５にて密閉し、金型内の液状ポリウレタン
配合物６が硬化するまで約１００〜１２０度の温度で、
１００〜１５０気圧の圧力をかけ約３０〜４０分間加熱
加圧した後金型４．５を取り除き作業工程は完了し、図
８に示すような靴底が得られた。Next, the manufacturing method of the present invention will be described in order.
First, as shown in FIG. 4, the liquid polyurethane compound 6 is poured and filled into the concave fitting portions 3 provided on the upper surface 8 side of the lower mold 4. As the liquid polyurethane composition 6, the isocyanate TV polymer is mixed with a pigment to obtain 50 to 150.
While heating to 80 ° C, the curing agent and catalyst are heated to 80 to 130 ° C.
The mixture is heated to 1, and both are uniformly mixed and stirred, and then the mixture is poured into a mold through a defoaming step and filled. Next, the excess liquid polyurethane compound 6 leaked from the lower mold 4 is removed by using a spatula or the like, and leveling is performed so as to be flush with the upper surface 7 of the lower mold 4, and then, as shown in FIGS. As shown in FIG. 6, the sheet 1 is placed so as to be in contact with the upper surface 7 of the lower mold 4, and the lid mold 5 is closed over the sheet 1 until the liquid polyurethane compound 6 in the mold is cured. At a temperature of 100-120 degrees,
After applying a pressure of 100 to 150 atm for heating and pressurizing for about 30 to 40 minutes, the mold 4.5 was removed and the working process was completed to obtain a shoe sole as shown in FIG.
【０００９】成形後の熱溶解シート１は加熱加圧によっ
て溶解し透明度の高い靴底、主とし外底が得られる。シ
ート１に結合される液状ポリウレタン配合物６は硬化し
てエラストマーとなし、ポリウレタンの長繊維からなる
シート１に融着結合して一体的なものに成形される。The hot melt sheet 1 after molding is melted by heating and pressurizing to obtain a highly transparent shoe sole, mainly an outer sole. The liquid polyurethane compound 6 to be bonded to the sheet 1 is cured into an elastomer, and is melt-bonded to the sheet 1 made of polyurethane long fibers to be molded integrally.
【００１０】[0010]
【発明の効果】従って本発明によれば上記製造法による
ものであるから、以下のような効果を発揮する。本発明
によれば、上記のような製造方法を採用したので、靴底
本体となる不織布シートがポリウレタン不織布にて形成
され、かつ熱によって溶解し、透明になる性質のものに
て形成されるものであるから、靴底本体に従来品のよう
に予めポリウレタン被膜を塗布する工程を必要とせず、
液状ポリウレタン配合物を注流、充填した金型内で加熱
加圧するのみで熱溶解したシート上にポリウレタンエラ
ストマーの突起を一体的に融着結合することができる。
更に金型内から本靴底を取り出した後は長時間の熟成を
要しないため効率のよい生産を可能にすることが出来
た。また加熱加圧によって成形した靴底は互いに熱融合
されるものであるから結合力が強力で突起２の剥離脱落
のおそれが無く突起２の地面把持力を遺憾なく発揮する
ことができる。加えて熱溶解シート１は成形後、加熱に
より透明性を帯びているため、従来にない漸進なデザイ
ンを有する靴底の提供に寄与することができた。Therefore, according to the present invention, since the above-mentioned manufacturing method is employed, the following effects are exhibited. According to the present invention, since the manufacturing method as described above is adopted, the nonwoven fabric sheet that becomes the main body of the shoe sole is formed of polyurethane nonwoven fabric, and is formed by the property of becoming transparent by being melted by heat. Therefore, unlike the conventional product, the step of pre-coating the sole body with the polyurethane coating is not required,
The projections of the polyurethane elastomer can be integrally fused and bonded onto the heat-melted sheet only by heating and pressing the liquid polyurethane composition in a mold filled with the liquid polyurethane.
Furthermore, after taking out the shoe sole from the mold, aging for a long time is not required, so that efficient production can be achieved. Further, since the shoe soles formed by heating and pressing are heat-fused with each other, the binding force is strong and there is no risk of the projections 2 peeling off, and the ground gripping force of the projections 2 can be fully exerted. In addition, since the heat-melting sheet 1 is transparent due to heating after molding, it was possible to contribute to the provision of a shoe sole having a progressive design that has never been seen before.
【図１】 シートを示す断面図。FIG. 1 is a cross-sectional view showing a sheet.
【図２】 下金型を示す断面図。FIG. 2 is a sectional view showing a lower mold.
【図３】 蓋金型を示す断面図。FIG. 3 is a cross-sectional view showing a lid mold.
【図４】 液状ポリウレタン配合物を注流した状態を示
す下金型の断面図。FIG. 4 is a cross-sectional view of a lower mold showing a state where a liquid polyurethane composition is poured.
【図５】 金型内にシートを収め入れた製造工程を示す
断面図。FIG. 5 is a cross-sectional view showing a manufacturing process in which a sheet is put in a mold.
【図６】 金型内にシートを収め入れた製造工程を示す
断面図。FIG. 6 is a cross-sectional view showing a manufacturing process in which a sheet is put in a mold.
【図７】 本発明の製造工程によって得られた靴底を示
す部分断面図。FIG. 7 is a partial sectional view showing a shoe sole obtained by the manufacturing process of the present invention.
【図８】 本発明の靴底の接地面側を示す平面図。FIG. 8 is a plan view showing the ground contact side of the shoe sole of the present invention.
【図９】 本発明の靴底を備えた靴の側面図。FIG. 9 is a side view of a shoe including the shoe sole of the present invention.
１ シート ２ 突起 ３ 凹嵌部 ４ 下金型 ５ 蓋金型 ６．液状ポリウレタン配合物 ７．上面 ８．凹部 1 sheet 2 protrusion 3 concave fitting portion 4 lower mold 5 lid mold 6. Liquid polyurethane formulation 7. Top surface 8. Recess
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 75:00 Ｂ２９Ｌ 31:50 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location // B29K 75:00 B29L 31:50
Claims (1)
リウレタン繊維でなるシート１と、上面凹部１０内に靴
底の滑り止め突起２に対応する複数個の凹嵌部３を設け
た下金型４と、蓋金型５とを準備し、前記下金型４の各
凹嵌部３内に液状ポリウレタン配合物６を注流、充填し
た後、前記シート１を下金型４の上面凹部８内に収め入
れ、該熱溶解シート１とポリウレタン配合物を蓋金型５
と下金型４とにより挟持し、これを加熱加圧した後蓋金
型５を取り除くことによって透明となったシート１上に
ポリウレタンエラストマーの突起２を一体的に形成した
ことを特徴とする靴底の製造法。1. A lower mold having a sheet 1 made of polyurethane fiber having a property of becoming transparent when melted, and a plurality of recessed fitting portions 3 corresponding to anti-slip projections 2 of a shoe sole in an upper surface recessed portion 10. 4 and a lid mold 5 are prepared, and the liquid polyurethane compound 6 is poured into and filled in each concave fitting part 3 of the lower mold 4, and then the sheet 1 is recessed on the upper surface 8 of the lower mold 4. Then, the heat-melting sheet 1 and the polyurethane compound are put into a lid mold 5
A shoe characterized in that a protrusion 2 of polyurethane elastomer is integrally formed on a transparent sheet 1 by sandwiching it with a lower mold 4 and heating and pressurizing it, and then removing the lid mold 5. Bottom manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3131480A JPH074288B2 (en) | 1991-06-04 | 1991-06-04 | Shoe sole manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3131480A JPH074288B2 (en) | 1991-06-04 | 1991-06-04 | Shoe sole manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04357902A JPH04357902A (en) | 1992-12-10 |
| JPH074288B2 true JPH074288B2 (en) | 1995-01-25 |
Family
ID=15058963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3131480A Expired - Fee Related JPH074288B2 (en) | 1991-06-04 | 1991-06-04 | Shoe sole manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074288B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030089257A (en) * | 2002-05-17 | 2003-11-21 | 주식회사 동성화학 | Polyurethane resin for using molding |
| KR20020059298A (en) * | 2002-06-12 | 2002-07-12 | 류경아 | method of making anti-abrasive protecting layer on uppers of leather shoes |
| US7047668B2 (en) | 2003-07-24 | 2006-05-23 | Nike, Inc. | Article of footwear having an upper with a polymer layer |
| KR100719525B1 (en) * | 2005-11-02 | 2007-05-18 | 주식회사 성신신소재 | Jig apparatus for setting shoe sole insert in mold and method for manufacturing shoe sole with multi color, density and hardness using the same |
| ES2361315B1 (en) * | 2009-06-18 | 2012-04-20 | Vulcanizados Argus, S.L | METHOD OF MANUFACTURE OF A BASE-FLOOR ASSEMBLY FOR FOOTWEAR AND BASE-FLOOR ASSEMBLY MANUFACTURED WITH SUCH METHOD. |
| CN106572717B (en) * | 2014-07-11 | 2021-06-29 | 健乐士股份公司 | Method for providing a part of a waterproof and vapor-permeable shoe, part of a waterproof and vapor-permeable shoe provided with said method, and waterproof and vapor-permeable sole provided with said part of a shoe |
-
1991
- 1991-06-04 JP JP3131480A patent/JPH074288B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04357902A (en) | 1992-12-10 |
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