JPH04236902A - Direct molding of shoe - Google Patents
Direct molding of shoeInfo
- Publication number
- JPH04236902A JPH04236902A JP3023661A JP2366191A JPH04236902A JP H04236902 A JPH04236902 A JP H04236902A JP 3023661 A JP3023661 A JP 3023661A JP 2366191 A JP2366191 A JP 2366191A JP H04236902 A JPH04236902 A JP H04236902A
- Authority
- JP
- Japan
- Prior art keywords
- toe
- sole
- mold
- cover
- bottom 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.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 229920002635 polyurethane Polymers 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000004636 vulcanized rubber Substances 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 238000002788 crimping Methods 0.000 claims 1
- 238000005187 foaming Methods 0.000 abstract 2
- 238000005266 casting Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000012858 resilient material Substances 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013518 molded foam Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、靴、さらに詳しくは
発泡ミッドソ−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。[Field of Industrial Application] This invention relates to shoes, and more particularly to shoes with a so-called rolled-up sole, which has a foamed midsole and a ground sole having a rolled-up part glued to the toe part of the toe. This relates to a direct molding method.
【０００２】0002
【従来の技術】従来、実公昭４５−５１５４号に示され
ているように、発泡ミッドソ−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。2. Description of the Related Art Conventionally, the structure of a shoe with a rolled-up sole having a foamed midsole is generally known, as shown in Japanese Utility Model Publication No. 45-5154.
【０００３】この種の靴の製造に当って、従来発泡成形
された発泡体をミッドソ−ル形状に打ち抜き裁断し、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。[0003] In manufacturing this type of shoe, conventionally foam-molded foam is punched and cut into the shape of a midsole, and this is bonded to a ground sole with a rolled-up part (extension part) formed at the toe part. The sole was formed, and this sole was glued to the bottom of the toe using an adhesive method, and the rolled up part was rolled up and glued to the toe of the toe, complicating the manufacturing process and significantly increasing costs. .
【０００４】0004
【発明が解決しようとする課題】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、簡単に低コ
ストで発泡ミッドソ−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靴を提供しよう
とするものである。[Problems to be Solved by the Invention] The present invention has a foamed midsole that can be easily and inexpensively made by a direct method, that is, a casting method or an injection method, and has a rolled-up portion glued to the toe part of the shoe. The purpose is to provide shoes with a grounding sole.
【０００５】[0005]
【課題を解決するための手段】以下、この発明の実施状
態を示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、爪先部における摺動面３１．３
１を胛被１の爪先部１１方向に傾斜させた開閉自在なサ
イドモ−ルド３．３と、上下動自在で爪先エッジ部５１
をたわみ自在に形成し、その成形面５０に胛被１の爪先
部１１形状に沿って薄肉に形成された爪先巻き上げ部４
１を備えた加硫ゴム接地底４をセットしたボトムモ−ル
ド５とによって形成され拡大された１次モ−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−ルド５を上昇させて爪先エッジ部５
１をサイドモ−ルドの摺動面３１に沿って爪先エッジ部
５１を内方向にたわませ、胛被１と接地底４間に発泡ポ
リウレタンミッドソ−ル６を積層すると共に、胛被１の
爪先部１１形状に沿って薄肉に形成された爪先巻き上げ
部４１を、２次モ−ルドキャビティ０’を形成する際の
ボトムモ−ルド５の上昇圧と爪先エッジ部５１のたわみ
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を発明の要旨とする
ものである。[Means for Solving the Problems] This invention will be explained below with reference to drawings showing the state of implementation of the invention.
Last 2 with attached and sliding surface 31.3 at the toe part
1 is inclined in the direction of the toe part 11 of the cover 1 and can be opened and closed, and the toe edge part 51 can be moved up and down.
A toe roll-up portion 4 is formed to be flexible, and a toe roll-up portion 4 is thinly formed on the molded surface 50 along the shape of the toe portion 11 of the toe cover 1.
After introducing a specified amount of foamable liquid polyurethane 6' into the enlarged primary mold cavity 0 formed by the bottom mold 5 having a vulcanized rubber grounding bottom 4 set therein, the bottom mold Raise the lead 5 and remove the toe edge 5.
1 is bent inward along the sliding surface 31 of the side mold, and a foamed polyurethane midsole 6 is laminated between the sleeve 1 and the ground sole 4, and the The toe roll-up part 41, which is thinly formed along the shape of the toe part 11, is rolled up by the rising pressure of the bottom mold 5 and the deflection pressure of the toe edge part 51 when forming the secondary mold cavity 0'. The gist of the invention is a direct molding method for shoes, which is characterized by directly press-fitting the toe portion 11.
【０００６】この発明において、ボトムモ−ルド５は全
体的にポリウレタン、シリコンゴム等のたわみ自在な反
発弾性体で構成されていてもよいし、その爪先エッジ部
５１のみをたわみ自在な反発弾性体で構成した分割型を
ボトムモ−ルド本体に固着したものであってもよいし、
または爪先エッジ部５１を金属性の分割型で構成し、こ
れをボトムモ−ルド本体にスプリング等の弾性材を介し
てたわみ自在に軸受けされたものであってもよい。そし
て爪先エッジ部５１を反発弾性体で構成する場合、その
外周面に周方向に溝５１１．５１１を設けることによっ
て、たわみ性を促進させることができる。In the present invention, the bottom mold 5 may be entirely made of a flexible resilient material such as polyurethane or silicone rubber, or only the toe edge portion 51 may be made of a flexible resilient material. The configured split mold may be fixed to the bottom mold body, or
Alternatively, the toe edge portion 51 may be formed of a split metal type, which is flexibly supported on the bottom mold body via an elastic material such as a spring. When the toe edge portion 51 is made of a resilient material, flexibility can be promoted by providing grooves 511, 511 in the circumferential direction on the outer peripheral surface of the toe edge portion 51.
【０００７】この発明において、ボトムモ−ルドの爪先
エッジ部５１に対応するサイドモ−ルドの内周側面、即
ち摺動面は胛被の爪先部１１方向に傾斜されている。In this invention, the inner circumferential side surface, ie, the sliding surface, of the side mold corresponding to the toe edge portion 51 of the bottom mold is inclined toward the toe portion 11 of the cover.
【０００８】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４２．４２…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 the present invention, the vulcanized rubber ground sole 4 is made of natural rubber or synthetic rubber as a main component, and is formed in the shape of a shoe sole with an uneven design 42, 42... on the ground surface side, and the tip of the vulcanized rubber ground sole 4 is made of natural rubber or synthetic rubber. A thin rolled-up portion 41 is formed integrally with the grounding sole 4 along the shape of the toe portion 11 of the toe cover.
【０００９】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−ルド５にセットする際ボ
トムモ−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−ルドキャビティ０’を形成する際サ
イドモ−ルド３．３の下面に圧接しておけば、ミッドソ
−ル６を発泡成形する際ミッドソ−ル成形材が接地底６
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、ミッドソ−ル６成形後、常法によってモ
−ルドを開放し、成形された靴をラストから脱型して、
ナイフ、グラインダ−等によって除去すれば、ミッドソ
−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 the present invention, a thin burr 43 is formed integrally with the vulcanized rubber ground sole 4 on the upper periphery thereof,
When setting the vulcanized rubber ground sole 4 in the bottom mold 5, it is fitted into the groove 51 formed on the upper periphery of the bottom mold, and when forming the secondary mold cavity 0', the side mold 3. If it is pressed against the bottom surface of 3, the midsole molding material will be in contact with the ground sole 6 when foam molding the midsole 6.
No intrusion into the sides or the ground surface side. Moreover, this burr 43 can be removed by opening the mold in a conventional manner after molding the midsole 6, and removing the molded shoe from the last.
By removing it with a knife, grinder, etc., a shoe sole with a good appearance consisting of a laminate of the midsole 6 and the ground sole 4 can be obtained.
【００１０】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−ルドキャビティ０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４
１の内表面４１１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４１１に付着された液状ポリウレタン６’
が胛被１の爪先部１１との接着剤としてなるので簡便で
ある。In the present invention, an adhesive may be applied and dried in advance on the inner surface 411 of the toe roll-up portion 41 of the grounding sole 4, that is, on the contact surface with the toe portion 11 of the shoe cover 1. When the foamable liquid polyurethane 6' is introduced into the primary mold cavity 0 by a casting method or an injection method, the liquid polyurethane 6' is applied to the toe roll-up portion 4 of the grounding bottom 4.
If the casting position or injection pressure is set so that the liquid polyurethane 6' adheres to the inner surface 411 of the toe roll-up portion 41 of the grounding sole 4, the liquid polyurethane 6'
This is convenient because it serves as an adhesive for the toe portion 11 of the shoe cover 1.
【００１１】この発明において１次モ−ルドキャビティ
０に導入され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−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 0 is set to be less than or equal to the volume of the secondary mold cavity 0' depending on its expansion ratio.
【００１２】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−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−ルド５を
上昇させて２次モ−ルドキャビティ０’を形成すれば、
ボトムモ−ルド５上昇時にボトムモ−ルドの爪先エッジ
部５１がボトムモ−ルドの爪先部における摺動面３１．
３１に沿って、そのたわみ性によって胛被１の爪先部１
１方向に傾斜され、ボトムモ−ルドの爪先エッジ部５１
にセットされた接地底４の爪先巻き上げ部４１がボトム
モ−ルドの上昇圧とその爪先エッジ部５１のたわみ圧と
で接地底４の爪先巻き上げ部４１が胛被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、発泡ミッドソ−ル６が胛被１と接地底
４間に積層成形される。In the present invention, after the foamable liquid polyurethane 6' is introduced into the primary mold cavity 0 by the casting method or the injection method, the bottom mold 5 is raised to form the secondary mold cavity 0. If we form ',
When the bottom mold 5 is raised, the toe edge portion 51 of the bottom mold slides onto the sliding surface 31 at the toe portion of the bottom mold.
31, the toe part 1 of the yoke 1 due to its flexibility
The toe edge portion 51 of the bottom mold is inclined in one direction.
The toe roll-up part 41 of the grounding sole 4 set in the bottom mold is caused by the rising pressure of the bottom mold and the deflection pressure of the toe edge part 51 to cause the toe roll-up part 41 of the grounding sole 4 to roll up to the toe part 11 of the toe cover 1.
The liquid polyurethane foam 6'
is foamed and hardened, and a foamed midsole 6 is laminated between the shoe cover 1 and the ground sole 4.
【００１３】[0013]
【発明の効果】この発明は以上のように構成されている
ので、発泡ミッドソ−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
。Effects of the Invention Since the present invention is constructed as described above, the foamed midsole is molded, and at the same time, it is laminated to the shoe cover 1 and the ground sole 4, and at the same time, the toe roll-up portion 41 of the ground sole 4 is molded. 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１】（Ａ）１次モ−ルドキャビティに発泡性の液状
ポリウレタンを導入した状態を示す要部断面図である。
（Ｂ）Ａ図の要部拡大図である。FIG. 1 (A) is a sectional view of a main part showing a state in which foamable liquid polyurethane is introduced into a primary mold cavity. (B) It is an enlarged view of the main part of figure A.
【図２】２次モ−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ッドソ−ル成形している状
態を示す要部断面図である。FIG. 2 is a sectional view of a main part showing a state in which foamable liquid polyurethane is foamed and hardened in a secondary mold cavity to form a midsole.
【図３】ミッドソ−ル成形後、モ−ルドを開放した状態
を示す正面図である。FIG. 3 is a front view showing a state in which the mold is opened after molding the midsole.
１．胛被 １１…
爪先部２．ラスト ３
．サイドモ−ルド３１…摺動面
４．接地底４１…爪先巻き上げ部 ４
１１…内表面４２…凹凸意匠
４３…バリ５．ボトムモ−ルド ５０…
成形面５１…爪先エッジ部 ５１１…溝
６．ミッドソ−ル
６’．発泡性の液状ポリウレタン
０．１次モ−ルドキャビティ
０’．２次モ−ルドキャビティ1. 11...
Toe part 2. last 3
．． Side mold 31...Sliding surface
4. Grounding bottom 41...Toe roll-up part 4
11... Inner surface 42... Uneven design
43...Bali 5. Bottom mold 50...
Molding surface 51... Toe edge portion 511... Groove 6. Midsole 6'. Expandable liquid polyurethane 0.1st mold cavity 0'. Secondary mold cavity
Claims (1)
における摺動面３１．３１を胛被１の爪先部１１方向に
傾斜させた開閉自在なサイドモ−ルド３．３と、上下動
自在で爪先エッジ部５１をたわみ自在に形成し、その成
形面５０に胛被１の爪先部１１形状に沿って薄肉に形成
された爪先巻き上げ部４１を備えた加硫ゴム接地底４を
セットしたボトムモ−ルド５とによって形成され拡大さ
れた１次モ−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−ルド５を
上昇させて爪先エッジ部５１をサイドモ−ルドの摺動面
３１に沿って爪先エッジ部５１を内方向にたわませ、胛
被１と接地底４間に発泡ポリウレタンミッドソ−ル６を
積層すると共に、胛被１の爪先部１１形状に沿って薄肉
に形成された爪先巻き上げ部４１を、２次モ−ルドキャ
ビティ０’を形成する際のボトムモ−ルド５の上昇圧と
爪先エッジ部５１のたわみ圧によって、胛被の爪先部１
１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。Claim 1: A last 2 to which a shank cover 1 is attached, a side mold 3.3 that can be opened and closed in which a sliding surface 31.31 at the toe part is inclined in the direction of the toe part 11 of the shank cover 1, and a side mold 3.3 that can be moved up and down. A toe edge portion 51 is formed to be freely flexible, and a vulcanized rubber grounding sole 4 is set on the molded surface 50 thereof with a toe roll-up portion 41 formed thinly along the shape of the toe portion 11 of the toe cover 1. After introducing a specified amount of foamable liquid polyurethane 6' into the enlarged primary mold cavity 0 formed by the bottom mold 5, the bottom mold 5 is raised and the toe edge portion 51 is placed in the side mold. - The toe edge portion 51 is bent inward along the sliding surface 31 of the blade, and the polyurethane foam midsole 6 is laminated between the toe cover 1 and the ground sole 4, and the toe portion 11 of the toe cover 1 is laminated between the toe cover 1 and the ground sole 4. The toe roll-up part 41, which is thinly formed according to the shape, is rolled up by the rising pressure of the bottom mold 5 and the bending pressure of the toe edge part 51 when forming the secondary mold cavity 0'. 1
A direct molding method for shoes, which is characterized by directly crimping the shoes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3023661A JPH0691842B2 (en) | 1991-01-21 | 1991-01-21 | Direct shoe molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3023661A JPH0691842B2 (en) | 1991-01-21 | 1991-01-21 | Direct shoe molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04236902A true JPH04236902A (en) | 1992-08-25 |
| JPH0691842B2 JPH0691842B2 (en) | 1994-11-16 |
Family
ID=12116684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3023661A Expired - Lifetime JPH0691842B2 (en) | 1991-01-21 | 1991-01-21 | Direct shoe molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0691842B2 (en) |
-
1991
- 1991-01-21 JP JP3023661A patent/JPH0691842B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0691842B2 (en) | 1994-11-16 |
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