JPH04135502A - Direct molding method of shoes - Google Patents
Direct molding method of shoesInfo
- Publication number
- JPH04135502A JPH04135502A JP2259921A JP25992190A JPH04135502A JP H04135502 A JPH04135502 A JP H04135502A JP 2259921 A JP2259921 A JP 2259921A JP 25992190 A JP25992190 A JP 25992190A JP H04135502 A JPH04135502 A JP H04135502A
- Authority
- JP
- Japan
- Prior art keywords
- sole
- toe
- mold cavity
- mold
- toe part
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000000465 moulding Methods 0.000 title claims abstract description 10
- 229920002635 polyurethane Polymers 0.000 claims abstract description 15
- 239000004814 polyurethane Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 239000004636 vulcanized rubber Substances 0.000 claims description 5
- 238000002788 crimping Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 238000005187 foaming Methods 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、靴、さらに詳しくは発泡ミツドソールを有
し、爪先部に、胛被に接着された巻き上げ部を有する接
地底を備えた、いわゆる巻き上げ底を有する靴のダイレ
クト成形法に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a shoe, more specifically a so-called shoe having a foamed midsole and having a ground sole having a rolled-up part bonded to the toe part at the toe part. This invention relates to a direct molding method for shoes with rolled up soles.
（従来の技術）
従来、実公昭４５−５１５４号に示されているように、
発泡ミツドソールを有する巻き上げ底を備えた靴の構造
は、一般に周知である。(Prior art) Conventionally, as shown in Utility Model Publication No. 45-5154,
The construction of roll-up shoes with foam midsoles is generally known.
この種の靴の製造に当って従来発泡成形された発泡体シ
ミツトソール形状に打抜き裁断し、これを爪先部に巻き
上げ部（延長部）を形成した接地底と貼合わせて靴底を
形成し、この靴底を接着方式によって胛被の底部に接着
するとともに、巻き上げ部を胛被の爪先部に巻き上げ接
着していたため、製造工程が複雑化して著しくコストア
ップとなっていた。In manufacturing this type of shoe, a conventional foam molded shimmit sole is punched and cut into a shape, and this is bonded to a ground sole with a rolled-up part (extension part) formed at the toe part to form the sole. The sole of the shoe was glued to the bottom of the shoe, and the roll-up part was rolled up and glued to the toe of the shoe, complicating the manufacturing process and significantly increasing costs.
（問題点を解決するための手段）
この発明はダイレクト方式即ち、注形法または射出方式
によって低コストで発泡ミツドソールを有し、爪先部に
胛被に接着された巻き上げ部を有する！Ｉ！地底を備え
た靴を提供しようとするものである。(Means for Solving the Problems) The present invention has a low-cost foamed midsole using a direct method, that is, a casting method or an injection method, and has a rolled-up portion at the toe portion that is glued to the shoelace! I! The aim is to provide shoes with an underground sole.
（問題点を解決するための手段）
以下、この発明の実施状態を糸す図面によって説明すれ
ば、この発明は、胛被１を装着したラスト２と開閉自在
なサイドモールド３゜３と、上下動自在でその成形面５
０に加硫ゴム接地底４をセットしたボトムモールド５と
によって形成され、拡大された１次モールドキャビティ
Ｏに規定量の発泡性の液状ポリウレタン６′を導入して
後、ボトムモールド５を上昇させて、胛被１と接地底４
間に発泡ポリウレタンミツドソール６をＭＭするととも
に、胛被１の爪先部１１形状に沿って薄肉に形成された
接地底４の爪先巻き上げ部４１を２次モールドキャビテ
ィＯ′を形成する際のボトムモールド５の上昇圧によっ
て、接地底４の爪先部４１を胛被の爪先部１１に直接的
に圧着させることを特徴とする靴のダイレクト成形法を
発明の要旨とするものである。(Means for Solving the Problems) Below, the implementation state of the present invention will be explained with reference to the drawings. The movable molding surface 5
After introducing a specified amount of foamable liquid polyurethane 6' into the enlarged primary mold cavity O formed by the bottom mold 5 with the vulcanized rubber grounded bottom 4 set at 0, the bottom mold 5 is raised. So, 1st cover and 4th grounding base.
A polyurethane foam midsole 6 is placed in between, and the toe roll-up portion 41 of the ground-contact sole 4, which is thinly formed along the shape of the toe portion 11 of the shoe cover 1, is used as the bottom when forming the secondary mold cavity O'. The gist of the invention is a direct molding method for shoes, which is characterized in that the toe portion 41 of the ground sole 4 is directly pressed against the toe portion 11 of the shoelace by the rising pressure of the mold 5.
この発明において加硫ゴム接地底４は、天然ゴムまたは
合成ゴムを主成分として、接地面側に凹凸意匠４２．４
２・・・を付して靴底形状に形成され、その先端部には
胛被の爪先部１１形状に沿って薄肉な巻き上げ部４１が
接地底４と一体に形成されている。In this invention, the vulcanized rubber ground sole 4 is mainly made of natural rubber or synthetic rubber and has an uneven design 42.4 on the ground surface side.
2... is formed in the shape of a shoe sole, and a thin rolled-up part 41 is formed integrally with the ground sole 4 at the tip thereof along the shape of the toe part 11 of the toe.
この発明において加硫ゴム接地底４の上周辺部に薄いバ
リ４３を接地底４と一体に形成しておき、加硫ゴム接地
底４をボトムモールド５にセットする際ボトムモールド
の上周辺部に形成された溝５１に嵌込みセットして、２
次モールドキャビティ０′を形成する際サイドモールド
３，３の下面に圧接しておけば、ミツドソール６を発泡
成形する際ミツドソール成形材が接地酸４の側面または
接地面側に侵入することがない。しかもこのバリ４３は
、ミツドソール６成形後、ナイフ、グラインダー等によ
って除去すれば、ミツドソール６と接地底４の積層体か
らなる外観良好な靴底が得られる。In this invention, a thin burr 43 is formed integrally with the upper periphery of the vulcanized rubber grounding sole 4, and when the vulcanized rubber grounding sole 4 is set in the bottom mold 5, the thin burr 43 is formed on the upper periphery of the bottom mold. Fit it into the formed groove 51 and set it 2.
If the side molds 3, 3 are pressed against the lower surfaces of the side molds 3 when forming the next mold cavity 0', the midsole molding material will not invade the side surface of the grounding acid 4 or the grounding surface side when the midsole 6 is foam-molded. Moreover, by removing the burr 43 with a knife, a grinder, or the like after molding the midsole 6, a sole with a good appearance consisting of a laminate of the midsole 6 and the ground sole 4 can be obtained.
この発明において接地底４の爪先巻き上げ部４１の内表
面４１１．即ち胛被１の爪先部１１との接地面には、予
め接着剤を塗布、乾燥しておいてもよいが、１次モール
ドキャビティＯに対する発泡性の液状ポリウレタン６′
の注型法または射出方式による導入の際、液状ポリウレ
タン６′が接地底４の爪先巻き上げ部４１の内表面４１
１に付着するように注型位置または射出圧の設定をして
おけば、この接地底４の爪先巻き上げ部４１の内表面４
１１に付着された液状ポリウレタン６′が胛被１の爪先
部１１との接着剤として成るので簡便である。In this invention, the inner surface 411 of the toe roll-up portion 41 of the grounding sole 4. That is, an adhesive may be applied and dried in advance on the ground surface of the toe portion 11 of the shank 1, but foamable liquid polyurethane 6' for the primary mold cavity O may be applied beforehand.
When introduced by the casting method or injection method, the liquid polyurethane 6' is applied to the inner surface 41 of the toe roll-up portion 41 of the grounding sole 4.
If the casting position or injection pressure is set so that it adheres to
The liquid polyurethane 6' attached to the toe part 11 serves as an adhesive for the toe part 11 of the toe cover 1, which is simple.
この発明において１次モールドキャビティＯに導入さ九
る発泡性の液状ポリウレタン６′は、その発泡倍率に応
じて２次モールドキャビティ０′の容積以下に設定され
ている。In the present invention, the volume of the foamable liquid polyurethane 6' introduced into the primary mold cavity O is set to be less than or equal to the volume of the secondary mold cavity 0' depending on its expansion ratio.
そしてこの発明において、注型法または射出方式によっ
て１次モールドキャビティ０に発泡性の液状ポリウレタ
ン６′を導入した後、ボトムモールド５を上昇させて２
次モールドキャビティＯ′を形成すれば、ボトムモール
ドの上昇圧で接地底４の爪先巻き上げ部４１胛被１の爪
先部１１に圧着されるとともに発泡性の液状ポリウレタ
ン６′が発泡硬化され、発泡ミツドソール６が胛被１と
接地底４間に積層成形される。In this invention, after introducing the foamable liquid polyurethane 6' into the primary mold cavity 0 by a casting method or an injection method, the bottom mold 5 is raised and the 2
Next, when the mold cavity O' is formed, the rising pressure of the bottom mold presses the toe roll-up part 41 of the ground sole 4 to the toe part 11 of the cover 1, and the foaming liquid polyurethane 6' is foamed and hardened, forming a foamed midsole. 6 is laminated and molded between the cover 1 and the ground sole 4.
（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、発泡ミツ
ドソールを成形すると同時に、これを胛被１と接地底４
に積層成形すると同時に接地底４の爪先巻き上げ部４１
を胛被１の爪先部１１に圧着でき、低コストで巻き上げ
底を有する靴を提供することができる。(Operations and Effects of the Invention) Since the present invention is configured as described above, at the same time the foamed midsole is molded,
At the same time, the toe roll-up portion 41 of the grounding sole 4 is laminated and formed.
can be crimped onto the toe part 11 of the shoe cover 1, and shoes with rolled up soles can be provided at low cost.
図面は、この発明の実施状態を示すものであって、第１
図は、１次モールドキャビティに発泡性のポリウレタン
を導入した状態を示す要部断面図であり、第２図は、２
次モールドキャビティ中で発泡性の液状ポリウレタンを
発泡硬化させてミツドソールを成形している状態を示す
要部断面図である。
符合の説明
］１・・・爪先部
３、サイドモールド
４１・・・接地底の爪先部
４２・・・凹凸意匠
５、ボトムモールド
５１・・溝
１、胛被
２、ラスト
４、接地底
４１１・・・内表面
４３・・・パリ
５０・・・成形面
６、ミツドソール
６′２発泡性の液状ポリウレタン
０．１次モールドキャビティ
Ｏ′、２次モールドキャビティThe drawings show the state of implementation of the invention, and show the first
The figure is a sectional view of the main part showing the state in which foamable polyurethane is introduced into the primary mold cavity.
FIG. 7 is a sectional view of a main part showing a state in which a midsole is molded by foaming and hardening foamable liquid polyurethane in a next mold cavity. Explanation of symbols] 1... Toe part 3, side mold 41... Toe part 42 of grounding sole... uneven design 5, bottom mold 51... groove 1, lace cover 2, last 4, grounding sole 411. ...Inner surface 43...Paris 50...Molding surface 6, Mid sole 6'2 Foaming liquid polyurethane 0. Primary mold cavity O', Secondary mold cavity
Claims (1)
３、３と、上下動自在でその成形面５０に加硫ゴム接地
底４をセットしたボトムモールド５とによって形成され
、拡大された１次モールドキャビティ０に、規定量の発
泡性の液状ポリウレタン６′を導入して後、ボトムモー
ルド５を上昇させて、胛被１と接地底４間に発泡ポリウ
レタンミッドソール６を積層するとともに、胛被１の爪
先部１１形状に沿って薄肉に形成された接地底４の爪先
巻き上げ部４１を、２次モールドキャビティ０′を形成
する際のボトムモールド５の上昇圧によって胛被の爪先
部１１に直接的に圧着させることを特徴とする靴のダイ
レクト成形法。The enlarged primary mold is formed by the last 2 equipped with the cover 1, the side molds 3, 3 which can be opened and closed, and the bottom mold 5 which is movable up and down and has a vulcanized rubber grounding sole 4 set on its molding surface 50. After introducing a specified amount of foamable liquid polyurethane 6' into the mold cavity 0, the bottom mold 5 is raised, and the foamed polyurethane midsole 6 is laminated between the shoe cover 1 and the ground sole 4. The toe roll-up part 41 of the grounding sole 4, which is thinly formed along the shape of the toe part 11 of the first mold, is directly attached to the toe part 11 of the toe cover by the rising pressure of the bottom mold 5 when forming the secondary mold cavity 0'. A direct shoe molding method that is characterized by crimping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2259921A JPH0651004B2 (en) | 1990-09-27 | 1990-09-27 | Direct shoe molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2259921A JPH0651004B2 (en) | 1990-09-27 | 1990-09-27 | Direct shoe molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04135502A true JPH04135502A (en) | 1992-05-11 |
| JPH0651004B2 JPH0651004B2 (en) | 1994-07-06 |
Family
ID=17340784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2259921A Expired - Lifetime JPH0651004B2 (en) | 1990-09-27 | 1990-09-27 | Direct shoe molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0651004B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014131865A (en) * | 2013-01-04 | 2014-07-17 | ▲そう▼成実業股▲ふん▼有限公司 | Shoes produced by automated production process, and production method of shoes |
-
1990
- 1990-09-27 JP JP2259921A patent/JPH0651004B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014131865A (en) * | 2013-01-04 | 2014-07-17 | ▲そう▼成実業股▲ふん▼有限公司 | Shoes produced by automated production process, and production method of shoes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0651004B2 (en) | 1994-07-06 |
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