JPH02252402A - Preparation of injection molding shoe - Google Patents
Preparation of injection molding shoeInfo
- Publication number
- JPH02252402A JPH02252402A JP1075684A JP7568489A JPH02252402A JP H02252402 A JPH02252402 A JP H02252402A JP 1075684 A JP1075684 A JP 1075684A JP 7568489 A JP7568489 A JP 7568489A JP H02252402 A JPH02252402 A JP H02252402A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- sole
- space
- midsole
- cover
- 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.)
- Pending
Links
- 238000001746 injection moulding Methods 0.000 title 1
- 238000002360 preparation method Methods 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 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
- B29D35/08—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 having multilayered parts
- B29D35/081—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 having multilayered parts by injection moulding
- B29D35/082—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 having multilayered parts by injection moulding injecting first the outer sole part
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)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、胛被を嵌装したラストモールドとサイドモー
ルド及びボトムモールド並びに各ダミーモールドとの型
組みにより形成された空間部に靴底材を射出充填して胛
被に一体成形してなる射出成形靴の製造方法に関するも
のである。Detailed Description of the Invention (a) Industrial Application Field The present invention provides a shoe sole in a space formed by assembling a last mold fitted with a cover, a side mold, a bottom mold, and each dummy mold. The present invention relates to a method of manufacturing injection molded shoes in which a material is injected and filled and integrally molded onto a shoe.
（ロ）従来の技術
従来、２種或いは２色以上の多重底を有する射出成形靴
においては、各底材毎に材料が流れる為の厚み即らベー
ス厚みが必要であるから、そのトータル厚みは厚くなり
、製品の重量は大きくなる。(B) Conventional technology Conventionally, in injection molded shoes having multiple soles of two types or two or more colors, the thickness for each sole material to flow, that is, the base thickness, is required, so the total thickness is The thickness increases, and the weight of the product increases.
又、二重底の場合はミツドソールがソールモールドに直
接に接する面積がなくなり、三重底の場合は胛被に接着
したミツドソールと接地底との間にあるミツドソールが
中底やソールモールドに直接に接する面積が少なくなり
、従ってこれ等のミツドソールの冷却が悪くなり、冷却
時間を延長せざるを得なくなって作業能率の低下をきた
し、発泡層の厚みが少なくなってソリッド層の厚みが増
し、クツション性の低下を来たしていた。In addition, in the case of a double sole, there is no area where the midsole is in direct contact with the sole mold, and in the case of a triple sole, the midsole between the midsole bonded to the cover and the ground sole is in direct contact with the insole and sole mold. The surface area decreases, and therefore the cooling of these midsoles becomes poor, forcing the cooling time to be extended, resulting in a decrease in work efficiency, and the thickness of the foam layer decreases, increasing the thickness of the solid layer, resulting in poor cushioning properties. There was a decline in
（ハ）発明が解決しようとする問題点
本発明は、ボトムモールド上に載置したベース底厚みの
薄い接地底の上面に囲繞する突壁を設けて、該突壁の上
端を胛被を嵌装したラストモールド或いは、更に底面に
薄い第１のミツドソールを密着形成してなるラストモー
ルドに密接して、サイドモールドとの型組みにより形成
された空間部に底材を射出して、第２のミツドソールを
形成してなる射出成形靴の製造方法であって、接地底の
突壁の上端が該ラストモールドの底面側に密接されるだ
けで突壁の内外空間に分けられ、外空間には充分に厚み
を有する発泡体として第２のミツドソールが形成され、
内空間には接地底材からなるリブのみが形成されて、空
気室として利用され、ミツドソールの材料の削減並びに
その冷却時間を短縮することができ、またクツション性
の向上並びに軽量化を計ることを目的とする。(C) Problems to be Solved by the Invention The present invention provides a protruding wall surrounding the upper surface of a thin base bottom placed on a bottom mold, and a cover is fitted to the upper end of the protruding wall. The bottom material is injected into the space formed by the mold assembly with the side mold in close contact with the last mold in which the thin first midsole is closely formed on the bottom surface of the second mold. A method for manufacturing injection molded shoes formed with a midsole, in which the upper end of the protruding wall of the ground-contact sole is brought into close contact with the bottom side of the last mold, and the protruding wall is divided into an inner and outer space, and the outer space is sufficiently filled. A second midsole is formed as a foam having a thickness of
Only ribs made of the ground-contact sole material are formed in the inner space and used as air chambers, reducing the amount of material used in the midsole and its cooling time, as well as improving cushioning properties and reducing weight. purpose.
（ニ）問題を解決する為の手段
本発明は、ソールモールドとダミーモールドとの型組み
により形成された空間部に底材を射出して接地底を形成
する第１工程と、第１工程後のソールモールドと胛被を
嵌装したラストモールド及びサイドモールドとの型組み
によって形成された空間部に底材を射出して胛被と接地
底とに一体成形してなる射出成形靴の製造方法において
、第１工程における接地底は薄い底板の上面の少なくと
も底厚部分の外縁部に囲繞する突壁を設けて第２工程に
おける空間部を形成するための堰の役目をなすよう構成
されてなる射出成形靴の製造方法である。(D) Means for Solving the Problem The present invention comprises a first step of injecting a bottom material into a space formed by assembling a sole mold and a dummy mold to form a grounded sole, and a step after the first step. A method for producing injection molded shoes, in which the sole mold is injected into the space formed by the last mold and the side mold into which the shoe cover is fitted, and the sole mold is integrally molded with the shoe cover and the ground sole. In the first step, the grounded bottom is configured to have a protruding wall surrounding at least the outer edge of the bottom thick portion of the upper surface of the thin bottom plate to serve as a dam for forming a space in the second step. This is a method of manufacturing injection molded shoes.
又、本発明は、ソールモールドと第１のダミーモールド
との型組みにより形成された空間部に底材を射出して接
地底を形成する第１工程と、胛被を嵌装したラストモー
ルドとサイドモールド及び第２のダミーモールドとの型
組みにより形成された空間部に底材を射出して第１のミ
ツドソールを胛被と一体成形する第２工程と、第１工程
後のソールモールドと第２工程後のラストモールド及び
サイドモールドの型組みにより形成された空間部に底材
を射出して第２のミツドソールを形成する第３工程とか
らなる射出成形靴の製造方法において、第１工程におけ
る接地底は薄い底板の上面の少なくとも底厚部分の外縁
部に囲繞する突壁を設けて第３工程における空間部を形
成するための堰の役目をなすよう構成されてなる射出成
形靴の製造方法である。The present invention also includes a first step of injecting a bottom material into a space formed by assembling a sole mold and a first dummy mold to form a grounded sole, and a last mold in which a cover is fitted. A second step in which the bottom material is injected into the space formed by mold assembly with the side mold and the second dummy mold to integrally mold the first midsole with the cover, and the sole mold after the first step and the second In the method for manufacturing injection molded shoes, the method includes a third step of injecting the sole material into the space formed by the last mold and side mold assembly after the second step to form a second midsole. A method for manufacturing injection molded shoes, wherein the ground sole is configured to have a protruding wall surrounding at least the outer edge of at least the thick part of the upper surface of the thin sole plate to serve as a dam for forming a space in the third step. It is.
（ホ）実施例
第１図は、本発明の第１実施例を示し、ソールモールド
（１１とダミーモールド（２）との型組みにより形成さ
れた空間部（５）に接地底材を射出しうる状態の縦断面
図、第３図は第１図におけるソールモールド＋１１とサ
イドモールド（３）及び胛被（７）を嵌装したラストモ
ールド（４）との型組みにより形成された空間部（８）
にミツドソール用底材を射出しうる状態の縦断面図であ
る。(e) Embodiment FIG. 1 shows a first embodiment of the present invention, in which a grounding sole material is injected into a space (5) formed by molding a sole mold (11) and a dummy mold (2). FIG. 3 is a longitudinal cross-sectional view of the wet state, and shows the space formed by the assembly of the sole mold +11 in FIG. 8)
FIG. 3 is a longitudinal cross-sectional view of a state in which the midsole sole material can be injected.
先ず、第１図に図示する如く、ソールモールド（１１の
上面に接地底（６）に合致する凹部が形成され、ダミー
モールド（２）の下面に少なくとも厚みの大なる踵部に
その輪郭に倣う囲繞した凹溝α〔が形成されており、こ
の凹溝０Ｉに縦横に連通ずるように凹溝が設けられてい
る。First, as shown in FIG. 1, a recess that matches the grounding sole (6) is formed on the upper surface of the sole mold (11), and a recess that matches the contour of the heel, which has a large thickness, is formed on the lower surface of the dummy mold (2). A surrounding groove α is formed, and grooves are provided to communicate with this groove 0I in the vertical and horizontal directions.
ソールモールド＋１）とダミーモールド（２）との型組
みにより空間部（５）にソールモールド＋１１に設けら
れた射出孔αＤから接地底材を射出充填して接地底（６
）が形成される。これが第１工程である。第２図には、
第１工程後ダミーモールド（２）を除去した平面図を示
す。By assembling the sole mold +1) and the dummy mold (2), the grounding sole material is injected and filled into the space (5) through the injection hole αD provided in the sole mold +11 to form the grounding sole (6).
) is formed. This is the first step. In Figure 2,
A plan view with the dummy mold (2) removed after the first step is shown.
次に、ダミーモールド（２）を除去した後、接地底（６
）が上面に載置されたソールモールド（１）とサイドモ
ールド（３）及び胛被（７）を嵌装したラストモールド
（４）との型組みにより形成された空間部（８）に射出
孔０乃からミツドソール材を射出して、ミツドソール（
９）が胛被（７）と接地底（６）とに一体に成形される
。これが第２工程である。この第２工程においては第１
工程において形成された突壁０階の上面がラストモール
ド（４）に嵌装された胛被（７）の中底面に当接されて
いるから、この突壁αｍの内部と外部が分断され、突壁
Ｑ３）の内部にミツドソール材が洩れることはない。Next, after removing the dummy mold (2), the ground bottom (6) is removed.
) is placed on the upper surface of the sole mold (1), the side mold (3), and the last mold (4) fitted with the cover (7). Inject the midsole material from 0no to create midsole (
9) is integrally formed on the cover (7) and the ground sole (6). This is the second step. In this second step, the first
Since the top surface of the 0th floor of the projecting wall formed in the process is in contact with the middle bottom surface of the cover (7) fitted into the last mold (4), the inside and outside of this projecting wall αm are separated, The midsole material does not leak into the inside of the projecting wall Q3).
第２工程後脱型して所望の胛被（７）に一体成形してな
る二重底を有する靴を得ることができた。After the second step, the shoe was removed from the mold and integrally molded with the desired shoe cover (7) to obtain a shoe with a double sole.
第４図は、本発明の第２実施例を示し、胛被（７）を嵌
装したラストモールド（４）とサイドモールド（３）及
びダミーモールドαａとにより形成された空間部ａ９に
第１のミツドソール材を射出しうる状態の縦断面図、第
５図は第１図におけるソールモールド（１１とサイドモ
ールド（３）及び第４図における胛被（７）を嵌装した
ラストモールド（４）との型組みにより形成された空間
部０７）に第２のミツドソール材を射出しうる状態の縦
断面図である。FIG. 4 shows a second embodiment of the present invention, in which a first mold is placed in a space a9 formed by a last mold (4) fitted with a cover (7), a side mold (3), and a dummy mold αa. Fig. 5 is a vertical cross-sectional view of the mid-sole material in a state in which it can be injected, and Fig. 5 shows the sole mold (11 and side mold (3) in Fig. 1 and the last mold (4) fitted with the cover (7) in Fig. 4). FIG. 7 is a vertical cross-sectional view showing a state in which the second midsole material can be injected into the space 07) formed by mold assembly with the second midsole material.
本実施例は、第４図に示す如く胛被（７）を嵌装したラ
ストモールド（４）とサイドモールド（３）及びダミー
モールドαａとの型組みによって形成される空間部０９
が薄い層状に形成されており、この空間部ａつに第１の
ミツドソールＱ６）材が射出孔から射出されて胛被（７
）の底面に第１のミツドソールαυが一体形成される第
２工程が第１実施例に加えられたものである。In this embodiment, as shown in FIG. 4, a space 09 is formed by assembling a last mold (4) fitted with a cover (7), a side mold (3), and a dummy mold αa.
is formed in a thin layer, and the first midsole material (Q6) is injected from the injection hole into this space a to form a layer (7).
) is added to the first embodiment in a second step in which the first midsole αυ is integrally formed on the bottom surface of the shoe.
即ち、第５図に示す如く第１実施例における第１工程後
にダミーモールド（２）を除去し、上面に接地底（６）
が載置されたソールモールド（１）とサイドモールド（
３）及び本実施例における第２工程後の薄い第１のミツ
ドソールＱ［９を有する胛被（７）を嵌着したラストモ
ールド（４）との型組みにより形成される空間部ａηに
射出口から第２のミツドソール材が射出され第２のミツ
ドソールα樽が形成される。この第３工程後脱型して所
望の胛被（７）に一体成形してなる三重底を有する靴を
得ることができた。That is, as shown in FIG. 5, after the first step in the first embodiment, the dummy mold (2) is removed and a grounding bottom (6) is placed on the top surface.
Sole mold (1) and side mold (
3) and the injection port in the space aη formed by the mold assembly with the last mold (4) into which the thin first midsole Q [9] is fitted after the second step. A second midsole material is injected from the injector to form a second midsole α barrel. After this third step, the shoe was removed from the mold and integrally molded with the desired shoe cover (7) to obtain a shoe having a triple sole.
（ト）発明の効果
本発明は、ダミーモールドを用いてソールモールドとの
型組みにより形成された空間部に、接地底材を射出して
少なくとも厚みが大である踵部上面に倣って囲繞する突
壁を形成し、この突壁上面を胛被を嵌装したラストモー
ルドの底面に、或いは胛被下面に薄い第１のミツドソー
ルを形成した胛被を嵌装したラストモールドの底面に当
接することにより、突壁内部に空間部を形成することが
できるから、この空間部が空気袋の働きをなして、クツ
ション性の向上、並びに第２ミツドソール材の削減によ
り軽量化を計ることができ、又、ミツドソールの厚みが
厚いものでもその体積に比べて金型に接触する面積が大
きく冷却時間の短縮を計ることができると共にひけ防止
をなくすことができた。(G) Effects of the Invention The present invention uses a dummy mold to inject a grounding sole material into a space formed by molding with a sole mold to surround the space so as to follow at least the upper surface of the heel portion, which has a large thickness. A projecting wall is formed, and the upper surface of this projecting wall is brought into contact with the bottom surface of a last mold fitted with a cover, or the bottom surface of a last mold fitted with a cover with a thin first midsole formed on the lower surface of the cover. As a result, a space can be formed inside the projecting wall, and this space can act as an air bag, improving cushioning properties and reducing the weight by reducing the second midsole material. Even if the midsole is thick, the area in contact with the mold is large compared to its volume, making it possible to shorten the cooling time and eliminate the problem of sink marks.
第１図は本発明の第１実施例を示し第１工程における縦
断面図、第２図は第１工程後の平面図、第３図は第２工
程における縦断面図、第４図は第２実施例を示し第２工
程における縦断面図、第５図は第３工程における縦断面
図である。
ｉ −ソールモールド、２−・ダミーモールド、３サイ
ドモールド、４− ラストモールド、５− 空間部
、６−接地底、７・・胛被、８−空間部、９−ミツドソ
ール、 １０−凹溝、１１．１２−一射出孔、 １３突
壁、１４−ダミーモールド、１５−空間部、 １６−・
・第１のミツドソール、１７・空間部、 １Ｂ−第２の
ミツドソール。1 shows a first embodiment of the present invention, and FIG. 2 is a plan view after the first step. FIG. 3 is a longitudinal sectional view after the second step. FIG. 5 is a longitudinal sectional view showing two embodiments in the second step, and FIG. 5 is a longitudinal sectional view in the third step. i - sole mold, 2 - dummy mold, 3 side mold, 4 - last mold, 5 - space, 6 - ground bottom, 7 - lace cover, 8 - space, 9 - mid sole, 10 - groove, 11.12-Injection hole, 13-Protruding wall, 14-Dummy mold, 15-Space, 16-・
・First midsole, 17・Space, 1B-Second midsole.
Claims (2)
り形成された空間部に底材を射出して接地底を形成する
第１工程と、第１工程後のソールモールドと胛被を嵌装
したラストモールド及びサイドモールドとの型組みによ
って形成された空間部に底材を射出して胛被と接地底と
に一体成形してなる射出成形靴の製造方法において、第
１工程における接地底は薄い底板の上面の少なくとも底
厚部分の外縁部に囲繞する突壁を設けて第２工程におけ
る空間部を形成するための堰の役目をなすよう構成され
てなる射出成形靴の製造方法。(1) The first step of injecting the bottom material into the space formed by molding the sole mold and the dummy mold to form a grounded sole, and the last step of fitting the sole mold and the cover after the first step. In a method for manufacturing injection molded shoes in which a sole material is injected into a space formed by assembling a mold and a side mold and integrally molded with a shoe cover and a ground sole, the ground sole in the first step is a thin sole plate. A method for manufacturing injection molded shoes, comprising: providing a projecting wall surrounding at least the outer edge of the thick sole portion of the upper surface of the shoe to serve as a dam for forming a space in the second step.
みにより形成された空間部に底材を射出して接地底を形
成する第１工程と、胛被を嵌装したラストモールドとサ
イドモールド及び第２のダミーモールドとの型組みによ
り形成された空間部に底材を射出して第１のミッドソー
ルを胛被と一体成形する第２工程と、第１工程後のソー
ルモールドと第２工程後のラストモールド及びサイドモ
ールドとの型組みにより形成された空間部に底材を射出
して第２のミッドソールを形成する第３工程とからなる
射出成形靴の製造方法において、第１工程における接地
底は薄い底板の上面の少なくとも底厚部分の外縁部に囲
繞する突壁を設けて第３工程における空間部を形成する
ための堰の役目をなすよう構成されてなる射出成形靴の
製造方法。(2) A first step of injecting the bottom material into the space formed by the mold assembly of the sole mold and the first dummy mold to form a grounded sole; A second step of injecting the sole material into the space formed by mold assembly with the second dummy mold and integrally molding the first midsole with the cover, and a second step of molding the sole mold after the first step. In a method for manufacturing injection molded shoes, the method includes a third step of injecting a sole material into a space formed by mold assembly with a later last mold and a side mold to form a second midsole. A method for manufacturing injection molded shoes, wherein the ground sole is configured to have a protruding wall surrounding at least the outer edge of at least the thick part of the upper surface of the thin sole plate to serve as a dam for forming a space in the third step. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1075684A JPH02252402A (en) | 1989-03-27 | 1989-03-27 | Preparation of injection molding shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1075684A JPH02252402A (en) | 1989-03-27 | 1989-03-27 | Preparation of injection molding shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02252402A true JPH02252402A (en) | 1990-10-11 |
Family
ID=13583264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1075684A Pending JPH02252402A (en) | 1989-03-27 | 1989-03-27 | Preparation of injection molding shoe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02252402A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000049831A (en) * | 2000-05-02 | 2000-08-05 | 박종화 | shoes-plate having impact-absorbing projection and its manufacturing method |
| WO2009095935A1 (en) * | 2008-01-28 | 2009-08-06 | Soles.Com S.R.L. | Method for manufacturing shoe soles with composite structure and such shoe soles |
| WO2019199270A1 (en) * | 2018-04-09 | 2019-10-17 | Hewlett-Packard Development Company, L.P. | Footwear with structural members |
| CN111530659A (en) * | 2020-05-08 | 2020-08-14 | 杭州萍沉鞋业有限公司 | Leather shoe gluing equipment convenient for uniform gluing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447251A (en) * | 1966-04-30 | 1969-06-03 | Erich Drexler | Shoe with air cushion sole and method for manufacturing the shoe |
-
1989
- 1989-03-27 JP JP1075684A patent/JPH02252402A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447251A (en) * | 1966-04-30 | 1969-06-03 | Erich Drexler | Shoe with air cushion sole and method for manufacturing the shoe |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000049831A (en) * | 2000-05-02 | 2000-08-05 | 박종화 | shoes-plate having impact-absorbing projection and its manufacturing method |
| WO2009095935A1 (en) * | 2008-01-28 | 2009-08-06 | Soles.Com S.R.L. | Method for manufacturing shoe soles with composite structure and such shoe soles |
| WO2019199270A1 (en) * | 2018-04-09 | 2019-10-17 | Hewlett-Packard Development Company, L.P. | Footwear with structural members |
| CN111530659A (en) * | 2020-05-08 | 2020-08-14 | 杭州萍沉鞋业有限公司 | Leather shoe gluing equipment convenient for uniform gluing |
| CN111530659B (en) * | 2020-05-08 | 2021-06-08 | 上海兰顿鞋业有限公司 | Leather shoe gluing equipment convenient for uniform gluing |
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