JPS644761B2 - - Google Patents
Info
- Publication number
- JPS644761B2 JPS644761B2 JP59254848A JP25484884A JPS644761B2 JP S644761 B2 JPS644761 B2 JP S644761B2 JP 59254848 A JP59254848 A JP 59254848A JP 25484884 A JP25484884 A JP 25484884A JP S644761 B2 JPS644761 B2 JP S644761B2
- Authority
- JP
- Japan
- Prior art keywords
- porous body
- sole
- insole
- shoe
- 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.)
- Expired
Links
- 239000004744 fabric Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- KRGNPJFAKZHQPS-UHFFFAOYSA-N chloroethene;ethene Chemical group C=C.ClC=C KRGNPJFAKZHQPS-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000011359 shock absorbing material Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は靴の成形法に関するものである。[Detailed description of the invention] (Industrial application field) This invention relates to a method of molding shoes.
（従来の技術）
従来、靴底の軽量化とクツシヨン性を図るため
実公昭42−8574号、特開昭49−87459号に示すよ
うに胛被と中底からなる胛被体の中底下面に多孔
体を接着し、胛被体の中底下面に靴底を射出成形
して靴底中に多孔体を埋設する方法は一般に周知
である。(Prior art) Conventionally, in order to reduce the weight and improve the cushioning properties of soles, as shown in Japanese Utility Model Publication No. 42-8574 and Japanese Unexamined Patent Publication No. 49-87459, the bottom surface of the midsole of a shoe sole consisting of a shoe cover and an insole has been proposed. A method of embedding the porous material in the shoe sole by bonding the porous material to the shoe sole and injection molding the sole to the lower surface of the midsole of the shoe cover is generally known.
しかしながら塩化ビニル、エチレンと酢酸ビニ
ルとの共重合体、熱可塑性のゴム、液状ポリウレ
タン等で靴底を射出成形する場合、靴底成形材の
溶融熱または反応熱で中底下面に接着された多孔
体が加熱され、多孔体中に含有された気泡が膨脹
したり、多孔体が合成樹脂乃至ゴム発泡体である
場合、成形工程で多孔体中に残存している発泡剤
の熱分解等により、多孔体中からガスが発生さ
れ、このガスが逃げ場を失つて、中底と多孔体の
接着面に集中し、この接着面で熱膨脹されるた
め、膨脹圧によつて中底と多孔体との接着が剥離
される欠点があり、完成品において、中底が靴底
から浮上がつて履心地を著しく阻害していた。 However, when the sole is injection molded with vinyl chloride, a copolymer of ethylene and vinyl acetate, thermoplastic rubber, liquid polyurethane, etc., porous holes are bonded to the lower surface of the insole by the heat of melting or reaction of the sole molding material. When the body is heated, the bubbles contained in the porous body expand, or when the porous body is a synthetic resin or rubber foam, the foaming agent remaining in the porous body during the molding process is thermally decomposed, etc. Gas is generated from inside the porous body, and this gas loses its escape and concentrates on the adhesive surface between the inner sole and the porous body, and is thermally expanded at this adhesive surface. The disadvantage was that the adhesive peeled off, and in the finished product, the midsole rose above the sole, significantly impairing the comfort of the shoe.
（発明の解決しようとする問題点）
この発明はこれらの欠点を除去し、履心地の良
好な靴を簡単な方法で提供しようとするものであ
る。(Problems to be Solved by the Invention) The present invention aims to eliminate these drawbacks and provide comfortable shoes using a simple method.
（問題点を解決するための手段、実施例）
この発明を以下実施図面に従つて説明すれば、
この発明は、胛被１１と中底１２からなる胛被体
１の中底下面に、上下に布帛２１，２２を接着し
た多孔体２を接着し、中底の多孔体２接着位置
に、予め中底１２を貫通する排気孔１２１，１２
１…を形成した後、胛被体の下面に靴底３を射出
成形して、靴底３中に多孔体２を埋設することを
特徴とする靴の成形法を要旨とするものである。(Means for solving the problems, embodiments) This invention will be explained below with reference to the drawings.
In this invention, a porous body 2 with fabrics 21 and 22 bonded to the upper and lower sides is adhered to the lower surface of the insole of a toss cover 1 consisting of a toss cover 11 and an insole 12, and the porous body 2 is attached in advance to the bonding position of the insole. Exhaust holes 121 and 12 passing through the inner sole 12
1 is formed, a shoe sole 3 is injection molded on the lower surface of the shoe cover, and a porous body 2 is embedded in the shoe sole 3.
この発明において多孔体２として、コルク板、
フエルト、合成樹脂乃至ゴム発泡体、ウレタン発
泡体等が挙げられるが、衝撃吸収性のもの即ち、
ゴム、エチレンと酢酸ビニルとの共重合体等の弾
性材料に通常以上の粘着剤を添加して発泡架橋し
たもの、不完全架橋のウレタン発泡体等で構成し
ておけば、多孔体２によつて着地時における衝撃
を吸収できるので、履心地を一層良好なものとす
ることができる。 In this invention, as the porous body 2, a cork board,
Examples include felt, synthetic resin or rubber foam, urethane foam, etc., but shock absorbing materials, i.e.,
If it is made of an elastic material such as rubber or a copolymer of ethylene and vinyl acetate, which is foamed and crosslinked by adding a larger amount of adhesive than usual, or an incompletely crosslinked urethane foam, the porous body 2 can be used. Since it can absorb the impact when landing on the ground, it can provide even better comfort.
多孔体２の中底下面に対する接着位置として
は、中底１２下面の踵部、踵付部等に限定して接
着しておいてもよいし、中底は下面全体に接着し
ておいてもよい。中底１２に対する排気孔１２
１，１２１の穿設は中底１２の裁断工程で同時に
行つてもよいし、中底１２下面に多孔体２を接着
した後、針、錐、千枚通し等によつて行つてもよ
い。 The position of adhesion to the lower surface of the inner sole of the porous body 2 may be limited to the heel, heel area, etc. on the lower surface of the inner sole 12, or the inner sole may be bonded to the entire lower surface of the inner sole. good. Exhaust hole 12 for midsole 12
The holes 1 and 121 may be made at the same time during the cutting process of the inner sole 12, or may be made with a needle, awl, an awl, etc. after the porous body 2 is adhered to the lower surface of the inner sole 12.
以上のようにして準備された胛被体１は靴成形
型４に吊込まれ、常法によつて胛被体１の下面に
靴底３が射出成形される。 The shoe cover 1 prepared as described above is suspended in a shoe mold 4, and the sole 3 is injection molded on the lower surface of the shoe cover 1 by a conventional method.
（発明の効果）
この発明は以上のように形成されているので、
靴底３の射出成形時に、靴底成形材が塩化ビニル
エチレンと酢酸ビニルとの共重合体、熱可塑性ゴ
ム等の熱可塑性材料である場合、その溶融熱によ
つて、靴底成形材が液状ポリウレタンである場合
は、その反応熱によつて中底１２下面に接着され
た多孔体２が加熱され、多孔体２中に含有された
気泡が膨張したり、多孔体２中に残存している発
泡剤の熱分解により、多孔体２中からガスが発生
されても、中底１２に排気孔１２１，１２１…が
形成されているため、このガスは排気孔１２１，
１２１…によつて容易に排出される。したがつて
従来のように中底と多孔体の接着面に、逃げ場を
失つたガスが集中され、集中されたガスの膨張圧
によつて中底と多孔体との接着が剥離されること
がないので、中底１２が靴底３から浮上がること
なく、履心地の良好な靴が提供できる。また多孔
体２の上下に布帛２１，２２が接着されているの
で、布帛２１，２２によつて多孔体２が補強され
るとともに布帛２１，２２によつて、中底１２並
びに射出成形される靴底３との接着強度が著しく
増強される。(Effect of the invention) Since this invention is formed as described above,
During injection molding of the sole 3, if the sole molding material is a thermoplastic material such as a copolymer of vinyl chloride ethylene and vinyl acetate or thermoplastic rubber, the sole molding material becomes liquid due to the heat of fusion. In the case of polyurethane, the porous body 2 bonded to the lower surface of the inner sole 12 is heated by the heat of reaction, causing bubbles contained in the porous body 2 to expand or remain in the porous body 2. Even if gas is generated from inside the porous body 2 due to the thermal decomposition of the foaming agent, this gas will not flow through the exhaust holes 121, 121... because the exhaust holes 121, 121, .
121... is easily discharged. Therefore, unlike in the past, the gas that has no place to escape is concentrated on the adhesive surface between the insole and the porous body, and the adhesive between the insole and the porous body is separated by the expansion pressure of the concentrated gas. Therefore, the midsole 12 does not rise above the sole 3, and shoes with good wearing comfort can be provided. Further, since the fabrics 21 and 22 are bonded to the top and bottom of the porous body 2, the porous body 2 is reinforced by the fabrics 21 and 22, and the insole 12 and the shoes to be injection molded are formed by the fabrics 21 and 22. The adhesive strength with the sole 3 is significantly increased.
図面は実施例を示すものであつて、第１図はこ
の発明の靴の成形状態を示す要部断面図であり、
第２図は従来の方法によつて成形された靴の要部
断面図である。
符号の説明 １……胛被体、１１……胛被、１
２……中底、１２１……排気孔、２……多孔体、
２１，２２……布帛、３……靴底、４……靴成形
型。
The drawings show examples, and FIG. 1 is a cross-sectional view of essential parts showing the molded state of the shoe of the present invention.
FIG. 2 is a sectional view of essential parts of a shoe molded by a conventional method. Explanation of the symbols 1...Kyoto subject, 11...Kyoto cover, 1
2... Insole, 121... Exhaust hole, 2... Porous body,
21, 22...Fabric, 3...Sole, 4...Shoe mold.
Claims (1)
下面に、上下に布帛２１．２２を接着した多孔体
２を接着し、中底の多孔体２接着位置に、予め中
底１２を貫通する排気孔１２１．１２１…を形成
した後、胛被体の下面に靴底３を射出成形して、
靴底３中に多孔体２を埋設することを特徴とする
靴の成形法。1 Glue the porous body 2 with fabrics 21 and 22 glued on the top and bottom to the lower surface of the insole of the insole 1 consisting of the insole 11 and the insole 12, and place the insole 12 in advance at the position where the porous body 2 is attached on the insole. After forming the exhaust holes 121, 121... that pass through the shoe soles 3, the sole 3 is injection molded on the lower surface of the shoe cover.
A shoe molding method characterized by embedding a porous body 2 in a shoe sole 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59254848A JPS61131702A (en) | 1984-11-30 | 1984-11-30 | Molding of shoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59254848A JPS61131702A (en) | 1984-11-30 | 1984-11-30 | Molding of shoes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61131702A JPS61131702A (en) | 1986-06-19 |
| JPS644761B2 true JPS644761B2 (en) | 1989-01-26 |
Family
ID=17270685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59254848A Granted JPS61131702A (en) | 1984-11-30 | 1984-11-30 | Molding of shoes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61131702A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20250003587A (en) | 2022-04-18 | 2025-01-07 | 아지노모토 가부시키가이샤 | Resin composition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4987459A (en) * | 1972-12-27 | 1974-08-21 |
-
1984
- 1984-11-30 JP JP59254848A patent/JPS61131702A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20250003587A (en) | 2022-04-18 | 2025-01-07 | 아지노모토 가부시키가이샤 | Resin composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61131702A (en) | 1986-06-19 |
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