JP2622830B2 - Injection molding of shoes with different color tape - Google Patents
Injection molding of shoes with different color tapeInfo
- Publication number
- JP2622830B2 JP2622830B2 JP5095312A JP9531293A JP2622830B2 JP 2622830 B2 JP2622830 B2 JP 2622830B2 JP 5095312 A JP5095312 A JP 5095312A JP 9531293 A JP9531293 A JP 9531293A JP 2622830 B2 JP2622830 B2 JP 2622830B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- edge tape
- bottom mold
- dummy
- tape
- 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
- 238000001746 injection moulding Methods 0.000 title claims description 7
- 238000000465 moulding Methods 0.000 claims description 18
- 239000012778 molding material Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000005187 foaming Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は異色テープを有する靴
の射出成形法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for injection-molding shoes having a different color tape.
【０００２】[0002]
【従来の技術】従来、異色テープを有する靴の射出成形
法として特公昭５３−２１３４８号によって、胛被を吊
込んだラストとサイドモールドと外周辺部にシール壁を
環状に突設したボトムモールドによって、胛被の下周辺
部に縁テープ成形キャビティを形成し、この縁テープ成
形キャビティに縁テープ成形材を射出して、胛被の下周
辺部に縁テープを成形した後、ボトムモールドを降下さ
せて、胛被を吊込んだラストと縁テープを保持したサイ
ドモールドとボトムモールドと靴底本体成形モールドと
によって靴底本体成形キャビティを形成し、この靴底本
体成形キャビティに縁テープとは異色な靴底本体成形材
を射出して、胛被の底部と縁テープに一体に靴底本体を
成形する異色テープを有する靴の射出成形法が提案され
ている。2. Description of the Related Art Conventionally, as a method of injection-molding shoes having a different color tape, Japanese Patent Publication No. 53-21348 discloses a bottom mold in which a last and a side mold in which a cap is suspended and a seal wall is annularly protruded from an outer peripheral portion. The edge tape molding cavity is formed in the lower peripheral portion of the shell, and the edge tape molding material is injected into the edge tape molding cavity to form the edge tape in the lower peripheral portion of the shell, and then the bottom mold is lowered. Then, a sole mold is formed by the side mold, the bottom mold holding the edge tape, the edge tape held therein, the sole mold, and the shoe sole body molding mold. The shoe sole body molding cavity has a different color from the edge tape. There has been proposed an injection molding method for shoes having a different color tape for injecting a sole-sole body molding material to form the sole sole body integrally with the bottom of the upper cover and the edge tape.
【０００３】しかしながらこの方法による場合、ボトム
モールドに一体に突設された環状のシール壁によって縁
テープと靴底本体との境界に環状の溝が形成され、この
溝によって靴底が亀裂したり引き裂かれたりして靴底の
耐久性が著しく低下する欠点があり、しかもシール壁に
よるシール性が不充分で縁テープ成形材が環状突起の内
側へ侵入し、靴底本体成形時に靴底本体と胛被との接着
性が著しく阻害されていた。However, according to this method, an annular groove is formed at the boundary between the edge tape and the sole body by an annular sealing wall integrally projecting from the bottom mold, and the groove may crack or tear the sole. There is a drawback that the durability of the shoe sole is significantly reduced, and the sealing property of the seal wall is insufficient, so that the edge tape molding material enters the inside of the annular projection, and the shoe sole body and the shell are formed when the shoe sole body is formed. Adhesion to the coating was significantly inhibited.
【０００４】[0004]
【発明が解決しようとする課題】この発明は、これらの
欠点を除去し胛被との接着性並びに耐久性に優れた異色
テープを有する軽量な靴を簡単な方法によって提供しよ
うとするものである。SUMMARY OF THE INVENTION An object of the present invention is to eliminate these drawbacks and to provide a lightweight shoe having a different color tape which is excellent in adhesiveness to a shell and durability, by a simple method. .
【０００５】[0005]
【課題を解決するための手段】以下この発明を実施図面
によって説明すれば、この発明は胛被１１を吊込んだラ
スト１とサイドモールド２．２と外周辺部に弾性のシー
ル壁３１を環状に突設し、その立上り部の内角αが鋭角
となるように構成したダミーボトムモールド３とを、該
ダミーボトムモールド３をサイドモールド２．２に対し
て上昇させて、サイドモールド２．２とダミーボトムモ
ールド３とを斜面で嵌合させて組合せ、胛被１１の下周
辺部に縁テープ成形キャビティ０１を形成し、この縁テ
ープ成形キャビティ０１に縁テープ成形材を射出して、
胛被１１の下周辺部に縁テープ６を成形した後、ダミー
ボトムモールド３を本体ボトムモールド４と置換し、胛
被１１を吊込んだラスト１とサイドモールド２．２とサ
イドモールド２．２に保持された縁テープ６と本体ボト
ムモールド４とによって形成された靴底本体成形キャビ
ティ０２に縁テープ６とは異色の発泡性の靴底本体成形
材を射出して、胛被１１の底部と縁テープ６に一体に発
泡靴底本体７を成形することを特徴とする異色テープを
有する靴の射出成形法を発明の要旨とするものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. And the inner angle α of the rising part is acute.
And a dummy bottom mold 3 configured to be
Dummy bottom mold 3 against side mold 2.2
And raise the side mold 2.2 and dummy bottom
The edge tape molding cavity 01 is formed in the lower peripheral portion of the cover 11 by fitting the edge tape 3 with the slope 3 and the edge tape molding material is injected into the edge tape molding cavity 01.
After the edge tape 6 is formed on the lower peripheral portion of the cover 11, the dummy bottom mold 3 is replaced with the main body bottom mold 4, and the last 1, the side mold 2.2, and the side mold 2.2 on which the cover 11 is suspended. A foaming sole body molding material of a different color from the edge tape 6 is injected into the sole sole molding cavity 02 formed by the edge tape 6 and the main body bottom mold 4 held by the bottom tape 4 and the bottom of the shell 11. The gist of the invention is an injection molding method for shoes having a different color tape, wherein the foamed sole body 7 is formed integrally with the edge tape 6.
【０００６】この発明において、ダミーボトムモールド
３の外周辺部に突設されるシール壁３１は、ラスト１と
サイドモールド２．２とダミーボトムモールド３とを組
み合わせた際、ラスト１に吊込まれた胛被１１の底部に
圧接される高さに突設されており、ダミーボトムモール
ド３がポリウレタンのような弾性体で構成されている場
合は、ダミーボトムモールド３と一体に形成されていて
もよいが、ダミーボトムモールド３が金属性である場合
は、アクリルゴム、フッ素ゴム、クロロスルホン化ポリ
エチレン、シリコンゴム、ニトリルゴム、ポリスルフィ
ドゴム等の耐熱性ゴムで構成し、これをボトムモールド
３の外周辺部に設けられた溝３２に部分的に埋設してラ
スト１の底面に対向して突設固着されていてもよい。ダ
ミーボトムモールド３とサイドモールド２．２の嵌合面
の摩耗を回避でき、モールドの耐久性をアップでき、し
かもシール壁３１をずれることなく胛被１１の下面に正
確に圧接できる。In the present invention, when the last 1, the side mold 2.2 and the dummy bottom mold 3 are combined, the seal wall 31 projecting from the outer peripheral portion of the dummy bottom mold 3 is suspended in the last 1. When the dummy bottom mold 3 is made of an elastic material such as polyurethane, it is formed integrally with the dummy bottom mold 3 when the dummy bottom mold 3 is made of an elastic material such as polyurethane. However, when the dummy bottom mold 3 is made of metal, the dummy bottom mold 3 is made of a heat-resistant rubber such as acrylic rubber, fluorine rubber, chlorosulfonated polyethylene, silicon rubber, nitrile rubber, or polysulfide rubber. It may be partially buried in the groove 32 provided in the peripheral portion and protruded and fixed to face the bottom surface of the last 1. Wear of the fitting surface between the dummy bottom mold 3 and the side mold 2.2 can be avoided, the durability of the mold can be increased, and the seal wall 31 can be accurately pressed against the lower surface of the shell 11 without shifting.
【０００７】[0007]
【発明の作用】この発明は以上のように構成されてお
り、異色テープを有する靴を射出成形するに当って、底
部に中底１２を袋縫いした胛被１１をラスト１に吊込
み、これにダミーボトムモールド３をサイドモールド
２．２に対して上昇させて、サイドモールド２．２とダ
ミーボトムモールド３を斜面で嵌合させて組み合わせ、
ダミーボトムモールド３の外周辺部に突設された環状の
弾性のシール壁３１を胛被１１の底部に圧接させ、胛被
１１の下周辺部に形成された縁テープ成形キャビティ０
１に、射出ゲート２１を通して縁テープ成形材を射出し
て、縁テープ６を成形する。縁テープ６を成形した後、
常法によってダミーボトムモールド３を降下させ、ラス
ト１とサイドモールド２．２から離説させ、常法によっ
て本体ボトムモールド４をラスト１と縁テープ６を保持
したサイドモールド２．２に対して上昇させて、ラスト
１とサイドモールド２．２に組み合わせて、靴底本体成
形キャビティ０１を形成し、この靴底本体成形キャビテ
ィ０１に射出ゲート４１を通して、縁テープ６とは異色
の発泡性の靴底本体成形材を射出して、胛被１１の底部
と縁テープ６に発泡靴底本体７を一体に成形する。The present invention is constructed as described above. In injection-molding a shoe having a different color tape, a shell 11 sewn with a midsole 12 at the bottom is hung on the last 1. Dummy bottom mold 3 side mold
2.2, the side mold 2.2 and the dummy bottom mold 3 are fitted together on a slope and combined,
An annular elastic seal wall 31 protruding from the outer periphery of the dummy bottom mold 3 is pressed against the bottom of the shell 11 to form an edge tape molding cavity 0 formed in the lower periphery of the shell 11.
First, the edge tape molding material is injected through the injection gate 21 to form the edge tape 6. After molding the edge tape 6,
The dummy bottom mold 3 is lowered by an ordinary method to separate from the last 1 and the side mold 2.2, and the main body bottom mold 4 is raised by an ordinary method with respect to the side mold 2.2 holding the last 1 and the edge tape 6. Then, the last 1 and the side mold 2.2 are combined to form a shoe sole body molding cavity 01, and the injection gate 41 is passed through the shoe sole body molding cavity 01, and the foaming sole is different in color from the edge tape 6. The main body molding material is injected to form the foam sole sole body 7 integrally with the bottom of the upper cover 11 and the edge tape 6.
【０００８】[0008]
【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、縁テープ６射出成形時に弾性のシール壁３１
が胛被１の下面に正確に圧接されているので、縁テープ
成形材がシール壁３１を越えて環状のシール壁３１の内
側へ侵入することがなく、靴底本体成形時に靴底本体と
胛被１との接着性が阻害されることがない。また靴底本
体７は、ダミーボトムモールド３を本体ボトムモールド
４と置換して形成される靴底本体成形キャビティ０１で
射出発泡形成されるので、軽量でしかも従来のように縁
テープ６と靴底本体７との境界にシール壁によって環状
の溝が形成されることなく、耐久性に優れた異色テープ
を有する靴を成形することができる。しかもダミーボト
ムモールド３の立上り部の内角αが鋭角となるように構
成され、ダミーボトムモールド３をサイドモールド２．
２に対して上昇させて、サイドモールド２．２とダミー
ボトムモールド３とを斜面で嵌合させ、縁テープ成形キ
ャビティ０１が形成されるので、ダミーボトムモールド
３をサイドモールド２．２の嵌合面の摩耗が回避されモ
ールドの耐久性がアップされる。 Since the present invention is constructed as described above, the elastic sealing wall 31 is formed when the edge tape 6 is injection-molded.
Is accurately pressed against the lower surface of the upper cover 1, so that the edge tape molding material does not intrude into the inside of the annular seal wall 31 beyond the seal wall 31. Adhesion to the subject 1 is not hindered. Further, since the sole body 7 is formed by injection foaming in the sole body molding cavity 01 formed by replacing the dummy bottom mold 3 with the body bottom mold 4, it is lightweight and the edge tape 6 and the sole are formed as in the prior art. Without forming an annular groove by the seal wall at the boundary with the main body 7, it is possible to mold a shoe having a different color tape with excellent durability. Moreover, a dummy boat
The inner angle α of the rising portion of the mold 3 is set to be an acute angle.
Then, the dummy bottom mold 3 is replaced with the side mold 2.
2 and side mold 2.2 and dummy
The bottom mold 3 is fitted on the slope,
Cavity 01 is formed, so a dummy bottom mold
3 is used to prevent wear of the mating surface of the side mold 2.2.
Field durability is increased.
【図面の簡単な説明】[Brief description of the drawings]
【図１】Ａ．縁テープ成形状態を示す要部断面図であ
る。 Ｂ．靴底本体成形状態を示す要部断面図である。FIG. It is principal part sectional drawing which shows an edge tape molding state. B. It is principal part sectional drawing which shows a shoe sole main body molding state.
０１．縁テープ成形キャビティ ０２．靴底本
体成形キャビティ １．ラスト １１．胛被 １２．中底 ２．サイドモ
ールド ３．ダミーボトムモールド ３０．射出ゲ
ート ３１．シール壁 ３２．溝 ４．本体ボトムモールド ４１．射出ゲ
ート ６．縁テープ ７．靴底本体 α．ダミーボトムモールドの立上り部の内角01. Edge tape molding cavity 02. Sole body molding cavity 1. Last 11. Cape 12. Insole 2. Side mold 3. Dummy bottom mold 30. Injection gate 31. Seal wall 32. Groove 4. Body bottom mold 41. Injection gate 6. Edge tape 7. Shoe sole body α. Inner corner of rising part of dummy bottom mold
───────────────────────────────────────────────────── 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 Ｂ２９Ｃ 45/16 // Ｂ２９Ｋ 105:04 105:20 Ｂ２９Ｌ 31:50 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location B29C 45/16 // B29K 105: 04 105: 20 B29L 31:50
Claims (1)
ールド２．２と外周辺部に弾性のシール壁３１を環状に
突設し、その立上り部の内角αが鋭角となるように構成
したダミーボトムモールド３とを、該ダミーボトムモー
ルド３をサイドモールド２．２に対して上昇させて、サ
イドモールド２．２とダミーボトムモールド３とを斜面
で嵌合させて組合せ、胛被１１の下周辺部に縁テープ成
形キャビティ０１を形成し、この縁テープ成形キャビテ
ィ０１に縁テープ成形材を射出して、胛被１１の下周辺
部に縁テープ６を成形した後、ダミーボトムモールド３
を本体ボトムモールド４と置換し、胛被１１を吊込んだ
ラスト１とサイドモールド２．２とサイドモールド２．
２に保持された縁テープ６と本体ボトムモールド４とに
よって形成された靴底本体成形キャビティ０２に縁テー
プ６とは異色の発泡性の靴底本体成形材を射出して、胛
被１１の底部と縁テープ６に一体に発泡靴底本体７を成
形することを特徴とする異色テープを有する靴の射出成
形法。1. A structure in which an elastic seal wall 31 is annularly protruded from the last 1 on which the cover 11 is suspended, the side mold 2.2, and an outer peripheral portion, and an inner angle α of the rising portion is an acute angle.
Dummy bottom mold 3 and dummy bottom mold 3
Hand 3 is raised with respect to the side mold 2.2,
Sliding the mold 2.2 and the dummy bottom mold 3
The edge tape molding cavity 01 is formed in the lower peripheral portion of the upper cover 11, and the edge tape molding material is injected into the lower edge peripheral portion of the upper cover 11. 6 and then the dummy bottom mold 3
Is replaced with the bottom mold 4 of the main body, and the last 1, the side mold 2.2, and the side mold 2.
A foaming sole body molding material different in color from the edge tape 6 is injected into a sole body molding cavity 02 formed by the edge tape 6 held by the edge tape 6 and the body bottom mold 4, and the bottom of the upper cover 11 is formed. And forming a foam sole body 7 integrally with the edge tape 6 by injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5095312A JP2622830B2 (en) | 1993-03-29 | 1993-03-29 | Injection molding of shoes with different color tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5095312A JP2622830B2 (en) | 1993-03-29 | 1993-03-29 | Injection molding of shoes with different color tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06277104A JPH06277104A (en) | 1994-10-04 |
| JP2622830B2 true JP2622830B2 (en) | 1997-06-25 |
Family
ID=14134245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5095312A Expired - Lifetime JP2622830B2 (en) | 1993-03-29 | 1993-03-29 | Injection molding of shoes with different color tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2622830B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413674C (en) * | 2004-07-19 | 2008-08-27 | 许圣慈 | Process for improved multicolour forming of foamed polymer |
| FR3102709B1 (en) * | 2019-10-31 | 2021-11-05 | Christian Louboutin | Two-tone shoe outsole and method of manufacturing such an outsole |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02224602A (en) * | 1989-02-27 | 1990-09-06 | Moon Star Co | Method for molding injection molded shoe |
| JPH0651003B2 (en) * | 1990-05-12 | 1994-07-06 | 株式会社アサヒコーポレーション | Molding method for multicolor soles with different colored tapes |
-
1993
- 1993-03-29 JP JP5095312A patent/JP2622830B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06277104A (en) | 1994-10-04 |
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