JPH0516845B2 - - Google Patents
Info
- Publication number
- JPH0516845B2 JPH0516845B2 JP63096524A JP9652488A JPH0516845B2 JP H0516845 B2 JPH0516845 B2 JP H0516845B2 JP 63096524 A JP63096524 A JP 63096524A JP 9652488 A JP9652488 A JP 9652488A JP H0516845 B2 JPH0516845 B2 JP H0516845B2
- Authority
- JP
- Japan
- Prior art keywords
- sole
- molding
- outer sole
- recess
- mold
- 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 - Lifetime
Links
- 238000000465 moulding Methods 0.000 claims description 13
- 239000012778 molding material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- -1 and if necessary Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
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
- B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
- B29D35/061—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding
-
- 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
- B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
- B29D35/065—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by compression moulding, vulcanising or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明はクツシヨン性の多層靴底の成形法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of forming a cushioned multilayer shoe sole.
（従来の技術）
従来、特開昭57−203403号、特開昭60−222002
号によつて、部分的に切抜部または透孔を形成し
た外底をモールドキヤビテイの底部にセツトし、
この外底の上面に形成された上底キヤビテイに外
底とは異質な発泡性の上底成形材を導入して、外
底上面にクツシヨン性の上底を積層成形するとと
もに上底の一部を切抜部または透孔に充填して、
上底を部分的に厚肉に形成し、しかも厚肉部を外
底の接地面に部分的に露出させたクツシヨン性の
多層靴底の成形法が提案されている。(Prior art) Previously, JP-A-57-203403, JP-A-60-222002
Depending on the number, the outer sole with a partially cutout or through hole is set at the bottom of the mold cavity,
A foamed upper sole molding material that is different from the outer sole is introduced into the upper sole cavity formed on the upper surface of the outer sole, and a cushioned upper sole is laminated and molded on the upper surface of the outer sole, as well as a part of the upper sole. Fill the cutout or through hole with
A method of forming a multilayer shoe sole with cushioning properties has been proposed in which the upper sole is partially thickened and the thickened portion is partially exposed on the ground contact surface of the outer sole.
しかしこれらの多層靴底の成形法において、上
底成形時に切抜部または透孔に充填される外底成
形材が外底の切抜部または透孔に隣接する外底の
接地面下面にバリとなつてはみ出し、このバリに
よつて外底の外観が著しく低下される欠点があつ
た。 However, in these molding methods for multilayer soles, the outsole molding material filled into the cutouts or holes during upper sole molding forms burrs on the lower surface of the contact surface of the outsole adjacent to the cutouts or holes in the outsole. This burr protruded out, and this burr significantly degraded the appearance of the outsole.
（発明の解決しようとする問題点）
この発明は簡単な方法によつて、上底成形時に
上底成形材が外底下面にバリとしてはみ出すこと
がなく、外観が良好なクツシヨン性の多層靴底を
提供しようとするものである。(Problems to be Solved by the Invention) The present invention provides a multilayer shoe sole with good cushioning properties that prevents the upper sole molding material from protruding as burrs on the lower surface of the outer sole during upper sole molding by using a simple method. This is what we are trying to provide.
（問題点を解決するための手段並びに実施例）
以下実施図面によつてこの発明を説明すれば、
この発明は上面は部分的に凹部１１を形成し、し
かもこの凹部１１の底壁１１０を透明乃至半透明
な薄膜で形成したゴム外底１を、モールド３のキ
ヤビテイＯの底部にセツトし、この外底１の上面
に形成された上底成形キヤビテイO′に外底１と
は異質なクツシヨン性の上底成形材を導入すると
ともに上底成形材を凹部１１に充填してこれをこ
れを発泡させて外底上面に部分的に厚肉部２１を
有するクツシヨン性の上底２を積層成形すること
を特徴とするクツシヨン性の多層靴底の成形法を
発明の要旨とするものである。(Means and Examples for Solving Problems) The present invention will be explained below with reference to the drawings.
In this invention, a rubber outer sole 1 having a partially formed recess 11 on the upper surface and a bottom wall 110 of this recess 11 made of a transparent or translucent thin film is set at the bottom of a cavity O of a mold 3, and this A cushioning upper molding material different from that of the outer sole 1 is introduced into the upper molding cavity O' formed on the upper surface of the outer sole 1, and the recess 11 is filled with the upper molding material, which is then foamed. The gist of the invention is a method for molding a cushioned multilayer shoe sole, which is characterized by laminating and molding a cushioned upper sole 2 having a partially thickened portion 21 on the upper surface of the outer sole.
この発明において、外底１は天然ゴム、ポリイ
ソプレンゴム、スチレンブタジエン共重合ゴム、
ブタジエンゴム、クロロプレンゴムの１種または
２種以上の混合物に炭酸マグネシウム、微粒子状
のホワイトカーボン等の透明性の充填剤を添加し
たものを主成分とすることが好ましく、これに架
橋剤、架橋助剤、架橋促進剤、顔料、安定剤等の
常用ゴム配合薬品、必要によつては発泡剤を、外
底成形後の薄肉部１１における透明乃至半透明性
が阻害されない程度に添加したもので架橋成形さ
れている。 In this invention, the outer sole 1 is made of natural rubber, polyisoprene rubber, styrene-butadiene copolymer rubber,
It is preferable that the main component is one or a mixture of two or more of butadiene rubber and chloroprene rubber to which transparent fillers such as magnesium carbonate and fine particulate white carbon are added. Cross-linking is carried out by adding commonly used rubber compounding chemicals such as additives, cross-linking accelerators, pigments, and stabilizers, and if necessary, foaming agents to an extent that does not impede the transparency or translucency of the thin-walled portion 11 after molding the outer sole. Molded.
この発明において、外底１上面に形成される凹
部１１は外底踵部、踏付部のようにクツシヨン性
が必要とされる個所に設けられるものである。凹
部１１の肉厚としては外底１が透明性配合で形成
されている場合は、外底１の基部よりも薄肉であ
ればよいが、ソールクレープのような半透明なも
ので形成されている場合は、0.05mm〜１mm程度が
好ましい。厚みがそれ以下となれば成形上そのよ
うな薄膜部の成形が不可能となり、また厚みがそ
れ以上となれば、凹部１１の底壁を透しての上底
２の透視効果、即ち意匠感が低下するきらいがあ
る。外底１はモールド３のキヤビテイＯの底部で
ダミー型４を使用して直接的に加圧成形して成形
後、外底１をモールドキヤビテイＯの底部に保持
させたまま、ダミー型４を脱型することによつ
て、モールドキヤビテイＯの底部にセツトされて
もよいし、別途準備された外底１をモールドキヤ
ビテイＯの底部に裁置することによつてモールド
キヤビテイＯの底部にセツトされてもよい。そし
て外底１の上面には必要によつては接着剤を塗布
しておいてもよい。 In this invention, the concave portion 11 formed on the upper surface of the outsole 1 is provided at a location where cushioning properties are required, such as the heel portion and the stepping portion of the outsole. When the outer sole 1 is made of a transparent compound, the thickness of the recess 11 may be thinner than the base of the outer sole 1, but it may be made of a translucent material such as sole crepe. In this case, it is preferably about 0.05 mm to 1 mm. If the thickness is less than that, it will be impossible to form such a thin film part, and if the thickness is more than that, the perspective effect of the upper sole 2 through the bottom wall of the recess 11, that is, the design impression. tends to decrease. The outer sole 1 is directly pressure molded using the dummy mold 4 at the bottom of the cavity O of the mold 3. After molding, the dummy mold 4 is pressed while the outer sole 1 is held at the bottom of the mold cavity O. It may be set at the bottom of the mold cavity O by demolding, or it may be set at the bottom of the mold cavity O by placing a separately prepared outer sole 1 at the bottom of the mold cavity O. may be set to . An adhesive may be applied to the upper surface of the outer sole 1 if necessary.
このようにしてモールドキヤビテイＯの底部に
外底１をセツトした後、モールド３の上方に上型
またはラスト５を嵌合して、外底１の上面に上底
成形キヤビテイO′を形成し、この上底成形キヤ
ビテイO′に発泡性のPVC，EVA、ポリウレタン
または熱可塑性のゴム等を射出成形等の手段によ
つて導入するとともに上底成形材を凹部１１に充
填して、これを発泡させて外底１の上面に部分的
に厚肉部２１を有するクツシヨン性の上底２を積
層成形するものである。 After the outer sole 1 is set at the bottom of the mold cavity O in this way, the upper mold or last 5 is fitted above the mold 3 to form the upper mold cavity O' on the upper surface of the outer sole 1. , foamable PVC, EVA, polyurethane, thermoplastic rubber, etc. is introduced into this upper molding cavity O' by means such as injection molding, and the upper molding material is filled into the recess 11, and this is foamed. Then, a cushioned upper sole 2 having a partially thickened portion 21 is laminated on the upper surface of the outer sole 1.
（発明の作用効果）
この発明は以上のように上底発泡成形時に、外
底１上面に形成された凹部１１に上底成形材を充
填して部分的に厚肉部２１を発泡形成したので厚
肉部２１によつてクツシヨン性に優れた多層靴底
が得られる。しかも厚肉部成形の際、凹部１１の
底壁１１０が薄膜で形成されているので外底１の
接地面に、外底１とは異質な上底成形材がバリと
なつてはみ出すことがなく、しかも凹部１１の底
壁１１０が透明乃至半透明の薄膜であるため、外
底１の接地面に外底１とは異質な上底の厚肉部２
１を透視でき、外観が良好な多層靴底を得ること
ができる。(Operations and Effects of the Invention) As described above, in the present invention, during the foam molding of the upper sole, the recess 11 formed on the upper surface of the outer sole 1 is filled with the upper sole molding material, and the thick portion 21 is partially foamed. The thick portion 21 provides a multilayer sole with excellent cushioning properties. Moreover, when forming the thick part, since the bottom wall 110 of the recess 11 is formed of a thin film, the upper sole molding material, which is different from the outer sole 1, does not protrude as burrs on the ground surface of the outer sole 1. Moreover, since the bottom wall 110 of the recess 11 is a transparent or semi-transparent thin film, the thick part 2 of the upper sole, which is different from the outer sole 1, is formed on the ground surface of the outer sole 1.
1 can be seen through, and a multilayer shoe sole with a good appearance can be obtained.
図面はこの発明のクツシヨン性の多層靴底の成
形状態を示す要部断面図である。
符号の説明、１……外底、１１……凹部、１１
０……底壁、２……上底、２１……厚肉部、３…
…モールド、４……ダミー型、５……上型または
ラスト、６……側部型、Ｏ……モールドキヤビテ
イ、O′……上底成形キヤビテイ。
The drawing is a cross-sectional view of a main part showing a molded state of the cushioned multilayer shoe sole of the present invention. Explanation of symbols, 1...outer bottom, 11...recess, 11
0... Bottom wall, 2... Upper bottom, 21... Thick wall part, 3...
...Mold, 4...Dummy mold, 5...Top mold or last, 6...Side mold, O...Mold cavity, O'...Top bottom molding cavity.
Claims (1)
の凹部１１の底壁１１０を透明乃至半透明な薄膜
で形成したゴム外底１を、モールド３のキヤビテ
イＯの底部にセツトし、この外底１の上面に形成
された上底成形キヤビテイO′に外底１とは異質
なクツシヨン性の上底成形材を導入するとともに
上底成形材を凹部１１に充填してこれを発泡させ
て外底上面に部分的に厚肉部２１を有するクツシ
ヨン性の上底２を積層成形することを特徴とする
クツシヨン性の多層靴底の成形法。1. A rubber outer sole 1 having a recess 11 partially formed on the upper surface and a bottom wall 110 of the recess 11 made of a transparent or semi-transparent thin film is set on the bottom of the cavity O of the mold 3, and this outer sole is A cushioning upper molding material different from that of the outer sole 1 is introduced into the upper molding cavity O' formed on the upper surface of the upper sole 1, and the upper sole molding material is filled into the recess 11 and foamed to form an outer sole. A method for molding a cushioned multilayer shoe sole, which comprises laminating and molding a cushioned upper sole 2 having a partially thickened portion 21 on the upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096524A JPH01265901A (en) | 1988-04-18 | 1988-04-18 | Molding method for cushiony laminated sole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096524A JPH01265901A (en) | 1988-04-18 | 1988-04-18 | Molding method for cushiony laminated sole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01265901A JPH01265901A (en) | 1989-10-24 |
| JPH0516845B2 true JPH0516845B2 (en) | 1993-03-05 |
Family
ID=14167528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63096524A Granted JPH01265901A (en) | 1988-04-18 | 1988-04-18 | Molding method for cushiony laminated sole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01265901A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08505333A (en) * | 1993-11-05 | 1996-06-11 | エルフ アトケム ソシエテ アノニム | Molding of lightweight polyetheramides onto thermoplastic elastomers |
| DE10156529A1 (en) * | 2001-11-16 | 2003-05-28 | Alsa Gmbh | Shoe manufacture involves placement of an upper shoe part with stitched sole cover directly onto a polymer compound in a mold cavity |
| DK1662925T3 (en) | 2003-09-19 | 2011-01-31 | Alsa Gmbh | Process for making a shoe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57192505A (en) * | 1981-05-25 | 1982-11-26 | Sumitomo Rubber Ind | Colored transparent synthetic resin shoe sole |
-
1988
- 1988-04-18 JP JP63096524A patent/JPH01265901A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57192505A (en) * | 1981-05-25 | 1982-11-26 | Sumitomo Rubber Ind | Colored transparent synthetic resin shoe sole |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01265901A (en) | 1989-10-24 |
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