JPH01259801A - Injection molding shoes and production thereof - Google Patents
Injection molding shoes and production thereofInfo
- Publication number
- JPH01259801A JPH01259801A JP63088278A JP8827888A JPH01259801A JP H01259801 A JPH01259801 A JP H01259801A JP 63088278 A JP63088278 A JP 63088278A JP 8827888 A JP8827888 A JP 8827888A JP H01259801 A JPH01259801 A JP H01259801A
- Authority
- JP
- Japan
- Prior art keywords
- shoe
- shoes
- sole
- shoe body
- external
- 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
- 238000001746 injection moulding Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 7
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 7
- 238000005187 foaming Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000002759 woven fabric 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
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)
- Molding Of Porous Articles (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、射出成形された靴に関し、特に靴外底と靴本
体との間に靴内底を備えた射出成形靴及びその製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to injection molded shoes, and more particularly to injection molded shoes having an inner sole between the outer sole and the shoe body, and a method for manufacturing the same. .
（従来の技術）
従来、特開昭６１−４１４０１号公報に見られるように
、射出成形される短靴等は、予め射出成形した靴外底を
ボトムモールドに据え置き、該靴外底に設けた射出孔を
介してサイドモールドに靴本体を射出成形し、両者を一
体に成形したものが知られている。このような靴は靴外
底の靴内面側には靴本体と一体に成形された内底が形成
された構造となる。これは全て射出成形のみで製造でき
るので、製造容易であり廉価に得られる利点がある。し
かしながら、該靴外底は耐久性を向上させるために比較
的硬い材質が用いられ、また靴本体も靴外底よりは軟ら
かいものの比較的硬い材質で形成されるため、クツショ
ン性に乏しく履き心地の低下が避けられない。(Prior Art) Conventionally, as seen in Japanese Patent Application Laid-Open No. 61-41401, short shoes etc. to be injection molded are made by placing a pre-injection-molded outsole in a bottom mold, It is known that the shoe body is injection molded onto the side mold through holes, and the two are integrally molded. Such shoes have a structure in which an inner sole integrally formed with the shoe body is formed on the inner surface of the outer sole of the shoe. Since all of these can be manufactured by injection molding alone, they have the advantage of being easy to manufacture and inexpensive. However, the outer sole of the shoe is made of a relatively hard material in order to improve its durability, and the shoe itself is also made of a relatively hard material, although it is softer than the outer sole, resulting in poor cushioning and poor wearing comfort. A decline is inevitable.
他方、予め靴本体の胛被部分を射出成形すると共に該胛
被部分の下縁開口に上底を縫着して靴本体を形成し、前
記と同様に靴外底をボトムモールドに据え置き、前記靴
本体と対置して、その間隙に他の樹脂を射出成形して中
間底を形成した靴も知られている。On the other hand, the shoe body is formed by injection molding the shoe body part of the shoe body and sewing the upper sole into the lower edge opening of the shoe body part, and placing the shoe outer sole on the bottom mold in the same manner as above. Shoes are also known in which an intermediate sole is formed by injection molding another resin in the gap between the shoe body and the shoe body.
この場合には、中間底に発泡性の樹脂を用いることによ
り、前記のクツション性を改善することができる。In this case, the above-mentioned cushioning properties can be improved by using a foamable resin in the intermediate sole.
しかしながら、前記構成にあっては、上底を逢着する作
業が必要であるため、製造容易な射出成形の靴には馴染
まず、また廉価に得ることができない不都合がある。However, since the above structure requires work to attach the upper sole, it is not compatible with injection molded shoes, which are easy to manufacture, and there are disadvantages in that it cannot be obtained at a low price.
（本発明が解決しようとする課題）
本発明は、かかる従来の不都合を解消し、靴底が好適な
りッション性を備え履き心地が優れた靴を全て射出成形
のみで製造することができる射出成形靴及びその製造方
法を提供することを目的とする。(Problems to be Solved by the Present Invention) The present invention solves such conventional inconveniences, and enables shoes with suitable soles, cushioning properties, and excellent comfort to be manufactured by injection molding alone. The purpose is to provide shoes and a method for manufacturing the same.
（課題を解決するための手段）
かかる目的を達成するために、本発明の射出成形靴は、
軟質合成樹脂製の靴本体と同一樹脂製の靴外底とを備え
た射出成形靴において、該靴本体が開口する下縁部全周
に内方に延びる内周縁部を備え、該靴本体と前記靴外底
との間隙を充填すると共に靴外底の外周縁部と靴本体の
下縁部との間隙を介して靴本体の下縁部外面に延びて靴
外底を靴本体に一体に溶着する前記樹脂と同一の樹脂か
らなる発泡性靴内底を射出成形により設けたことを特徴
とする。(Means for Solving the Problems) In order to achieve the above object, the injection molded shoes of the present invention have the following features:
In an injection molded shoe comprising a shoe body made of a soft synthetic resin and an outer sole made of the same resin, the shoe body is provided with an inner peripheral edge extending inward around the entire circumference of the lower edge where the shoe body opens; It fills the gap between the outer sole and the outer sole of the shoe, and extends to the outer surface of the lower edge of the shoe body through the gap between the outer peripheral edge of the outer sole and the lower edge of the shoe body, thereby integrating the outer sole with the shoe body. The shoe is characterized in that a foam inner sole made of the same resin as the resin to be welded is provided by injection molding.
前記靴本体、靴外底及び靴内底を形成する合成樹脂は、
ポリ塩化ビニル樹脂、ポリウレタン樹脂、エチレン・酢
酸ビニル共重合体、熱可塑性ゴム等を用いることが可能
である。The synthetic resin forming the shoe body, the shoe outer sole, and the shoe inner sole is
It is possible to use polyvinyl chloride resin, polyurethane resin, ethylene/vinyl acetate copolymer, thermoplastic rubber, etc.
また、本発明の製造方法は、前記靴本体と前記靴外底と
を各別に射出成形する工程と、成形された靴本体と靴外
底とを溶着可能な状態に加熱保持して前記靴内底を形成
するための空隙部を介して対置して、該空隙部に前記靴
内底用樹脂を射出して靴内底を形成し、該靴内底を介し
て靴本体と靴外底とを溶着する工程とからなることを特
徴とする。Further, the manufacturing method of the present invention includes a step of separately injection molding the shoe body and the shoe outsole, and heating and holding the molded shoe body and the shoe outsole in a state where they can be welded. The shoe inner sole is formed by injecting the resin for the shoe inner sole into the gap, and the shoe body and the shoe outer sole are connected to each other through the shoe inner sole. and a process of welding.
（作 用）
本発明の射出成形靴は、かかる構成によれば前記靴本体
と前記靴外底と前記靴内底とを夫々射出成形によって形
成することのみにより製造可能となる。(Function) According to this configuration, the injection molded shoe of the present invention can be manufactured only by forming the shoe body, the shoe outer sole, and the shoe inner sole by injection molding.
また、発泡性樹脂で形成される前記靴内底は、前記靴本
体の下縁部の開口に直接露出する面を備えるので、該靴
内底のクツション性を足裏で直接に感じることが可能と
なり、且つ靴底の重量を軽量化する。Furthermore, the shoe inner sole made of foamed resin has a surface that is directly exposed to the opening at the lower edge of the shoe body, so the cushioning properties of the shoe inner sole can be felt directly on the soles of the feet. This also reduces the weight of the sole.
更に、前記靴本体と前記靴外底と前記靴内底とは同一樹
脂で成形されるので互いに溶着が可能となり、特別に接
着作業を必要としない。Furthermore, since the shoe body, the shoe outer sole, and the shoe inner sole are molded from the same resin, they can be welded to each other, and no special bonding work is required.
そして更に、前記靴本体と前記靴外底との接合は該靴本
体の下縁部に設けた内周縁部と該靴外底の内面との間だ
けではなく、靴外底の外周縁部内面及び靴外底の外周縁
部の上縁と靴本体の下縁部との間隙を介して靴本体の下
縁部外面に延びる靴内底とによって溶着されるので接合
強度が向上する。Furthermore, the connection between the shoe body and the shoe outer sole is not only between the inner peripheral edge provided at the lower edge of the shoe body and the inner surface of the shoe outer sole, but also between the outer peripheral edge and inner surface of the shoe outer sole. The upper edge of the outer periphery of the outer sole is welded to the inner sole extending to the outer surface of the lower edge of the shoe body through a gap between the lower edge of the shoe body, thereby improving the joint strength.
また、この靴外底の外周縁部の上縁と靴本体の下縁部と
の間隙を介して靴本体の下縁部外面に延び靴外面に露出
する部分は、従来の接着靴に見られるような接着テープ
様の外観を与えるようにすることが可能となる。In addition, the part that extends to the outer surface of the lower edge of the shoe body through the gap between the upper edge of the outer peripheral edge of the outer sole of the shoe and the lower edge of the shoe body and is exposed to the outer surface of the shoe is similar to that seen in conventional adhesive shoes. It is possible to give the adhesive tape-like appearance.
本発明の製造方法は、前記の工程により本発明の射出成
形靴を製造することを可能とする。The manufacturing method of the present invention makes it possible to manufacture the injection molded shoe of the present invention through the steps described above.
（実施例）
本発明の実施の一例として長靴の例を図示する第１図に
より、更に詳説する
第１図はその説明的断面図であり、１は靴本体、２は靴
外底、３は靴内底である。該靴本体ｌはポリ塩化ビニル
樹脂で後述するように射出成形され、上部に胴４を備え
、下縁部全周に内方に延びる内周縁部５を備えて下方は
開口されると共に内面全面゛に通気性を有する薄い裏布
６を備えている。(Example) FIG. 1 shows an example of boots as an example of carrying out the present invention, and FIG. 1 is an explanatory cross-sectional view of the boots. This is the inner sole of the shoe. The shoe body 1 is made of polyvinyl chloride resin by injection molding as will be described later, and has a torso 4 at the top, an inner peripheral edge 5 that extends inward around the entire lower edge, is open at the bottom, and has a full inner surface. It is equipped with a thin lining fabric 6 that is highly breathable.
該靴外底２は靴本体１と同一のポリ塩化ビニル樹脂で靴
本体１を構成する樹脂よりも耐久性のある比較的硬質の
樹脂により成形され、その外周全周に起立する外周縁部
７を備え船底形状に成形されている。The shoe outer sole 2 is molded from the same polyvinyl chloride resin as the shoe body 1, which is more durable and relatively hard than the resin constituting the shoe body 1, and has an outer peripheral edge 7 that stands up all around its outer periphery. It is molded into the shape of the ship's bottom.
該靴内底３は後述するようにその大半は靴外底２の底面
に形成された孔８を介して前記靴本体１と靴外底２との
空隙部を充填するように射出された自家発泡性のポリ塩
化ビニル樹脂で形成され、靴本体１の内周縁部５の開口
を覆い、靴外底２の外周縁部７の上縁と靴本体ｌの下縁
部との間隙９を介して靴本体１の下縁部外面に延びる露
出部１０を備える。そして、該靴内底３は、該靴本体ｌ
の下縁部に設けた内周縁部５外面との間、靴外底２の外
周縁部７内面と靴本体１の下縁部外面との間で靴本体１
と靴外底２とを溶着する。As will be described later, most of the shoe inner sole 3 is made of self-propelled material injected through holes 8 formed in the bottom surface of the shoe outer sole 2 to fill the gap between the shoe body 1 and the shoe outer sole 2. It is made of foamable polyvinyl chloride resin, covers the opening in the inner peripheral edge 5 of the shoe body 1, and is inserted through the gap 9 between the upper edge of the outer peripheral edge 7 of the shoe outsole 2 and the lower edge of the shoe body l. The shoe body 1 has an exposed portion 10 extending to the outer surface of the lower edge of the shoe body 1. The shoe inner sole 3 is connected to the shoe body l.
between the outer surface of the inner peripheral edge 5 provided on the lower edge of the shoe body 1, and between the inner surface of the outer peripheral edge 7 of the outer sole 2 and the outer surface of the lower edge of the shoe body 1.
and the shoe outer sole 2 are welded together.
次に、本発明の製造方法の実施の一例を第２図及び第３
図に従って説明する。Next, an example of the implementation of the manufacturing method of the present invention is shown in FIGS. 2 and 3.
This will be explained according to the diagram.
第２図はターンテーブル１１上の同一回動位置に間隔を
存して配設された成形型１２．１３で前記靴本体１と前
記靴外底２とを各別に射出成形する状態の説明的断面図
、第３図は次いで成形された靴本体ｌと靴外底２との間
に靴内底を射出成形する状態の説明的断面図である。FIG. 2 is an explanatory diagram of a state in which the shoe body 1 and the shoe outsole 2 are separately injection molded using molds 12 and 13 arranged at the same rotational position on the turntable 11 with a gap between them. FIG. 3 is an explanatory cross-sectional view showing a state in which the shoe inner sole is then injection molded between the molded shoe body l and the shoe outer sole 2.
靴本体１の成形型１２は第１図示のようにターンテーブ
ル１１上にダミーボトムモールド１４を配設し、該ダミ
ーボトムモールド１４に対して離接自在の一対のサイド
モールド１５．１６をラスト１７を内挿して設けてなり
、スプール１８によりダミーモールド１４を介してサイ
ドモールド１５，１６ 、ラスト１７側に射出して靴本
体１を成形する。このとき、ダミーボトムモールド１４
とラスト１７の底面外周との間には靴本体１の下縁部の
前記内周縁部５を成形するためのキャビティ１９が前記
網４を成形するためのキャビティ２０に接続して形成さ
れている。該ラスト１７には予め該ラスト１７の下面を
含めて通気性のある織布である裏布６が挿着されている
。As shown in the first figure, the mold 12 of the shoe body 1 includes a dummy bottom mold 14 disposed on a turntable 11, and a pair of side molds 15 and 16 that can be freely moved in and out of the dummy bottom mold 14 and attached to the last 17. The shoe body 1 is formed by inserting a spool 18 into the side molds 15, 16 and the last 17 through the dummy mold 14 and injecting the shoes into the side molds 15, 16 and the last 17. At this time, the dummy bottom mold 14
A cavity 19 for molding the inner peripheral edge 5 of the lower edge of the shoe body 1 is connected to the cavity 20 for molding the net 4 between and the bottom outer periphery of the last 17. . A backing cloth 6, which is a breathable woven fabric, is inserted into the last 17 in advance, including the lower surface of the last 17.
他方、靴外底２の成形型１３はターンテーブル１１上に
靴外底用のボトムモールド２１を配設し、該ボトムモー
ルド２１に対して離接自在にダミーラスト２２を設けて
なり、スプール２３によりボトムモールド２１を介して
射出して靴外底２を成形する。On the other hand, the mold 13 for the shoe outsole 2 is made up of a bottom mold 21 for the outsole placed on a turntable 11, a dummy last 22 that can be freely moved toward and away from the bottom mold 21, and a spool 23. The outsole 2 of the shoe is molded by injection through the bottom mold 21.
このとき、ボトムモールド２１にはダミーラスト２２と
共に前記靴外底２の底部を成形するためのキャビティ２
３が形成され、該キャビティ２４は前記靴外底２の外周
縁部５を成形するためのキャビティ２５に接続されてい
る。該ボトムモールド２１のキャビティ２４には、後述
する靴内底３を射出成形するためのスプールを形成する
ために、該キャビティ２４においてダミーラスト２２に
向かって突出する進退自在のロッド２６を備えている。At this time, the bottom mold 21 has a cavity 2 for molding the bottom of the shoe outer sole 2 together with the dummy last 22.
3 is formed, and the cavity 24 is connected to a cavity 25 for molding the outer peripheral edge 5 of the shoe outsole 2. The cavity 24 of the bottom mold 21 is equipped with a rod 26 that can move forward and backward in the cavity 24 and protrudes toward the dummy last 22 in order to form a spool for injection molding the inner sole 3 to be described later. .
また、ボトムモールド２０には後述する靴内底３を成形
するためのスプール２７を備える。The bottom mold 20 also includes a spool 27 for molding the shoe inner sole 3, which will be described later.
このようにした前記金型１２．１３において各別に靴本
体１及び靴外底２用のポリ塩化ビニル樹脂が各キャビテ
ィに射出されて成形される。In the molds 12 and 13 thus constructed, polyvinyl chloride resin for the shoe body 1 and the shoe outsole 2 is injected into each cavity and molded.
そして、各キャビティ中の樹脂が固化した状態で各金型
１２がダミーボトムモールド１４とサイドモールド１５
．１６及びラスト１７との間で、また金型１３がボトム
モールド２１とダミーラスト２２との間で型開きされ、
ターンテーブル１１が回動されて、第２図示のように、
サイドモールド１５．１６及びラスト１７と共に成形さ
れた靴本体ｌが、ボトムモールド２１と共に成形された
靴外底２と靴内底３を成形するための空隙を介して対置
されて型が閉じられる。Then, with the resin in each cavity solidified, each mold 12 is attached to a dummy bottom mold 14 and a side mold 15.
．． 16 and the last 17, and the mold 13 is opened between the bottom mold 21 and the dummy last 22,
When the turntable 11 is rotated, as shown in the second diagram,
The shoe body 1 molded together with the side molds 15, 16 and the last 17 is placed oppositely with a gap for molding the shoe outer sole 2 and shoe inner sole 3 molded together with the bottom mold 21, and the mold is closed.
その間、成形された靴本体１及び靴外底２とは図示しな
い加熱手段により後述する靴内底３で溶着可能な状態に
加温される。During this time, the molded shoe body 1 and shoe outer sole 2 are heated by a heating means (not shown) to a state where they can be welded to a shoe inner sole 3, which will be described later.
その後に、前記ボトムモールド２１のロッド２６が下降
されて成形された靴外底２に貫通するスプール２６ａが
形成され、ボトムモールド２１のスプール２７及び２６
ａを介して自家発泡性のポリ塩化ビニル樹脂が射出され
て靴内底３が成形され、該靴内底３により靴本体１と靴
外底２とは一体に溶着される。この際に靴本体１の下線
部外周に延び、該下縁部と靴外底２の外周縁部７との間
の間隙９とを充填する露出部１０はボトムモールド２１
に設けられたランナー２８により形成される。また、射
出された自家発泡性の樹脂が発泡する際に発生するガス
は、前記ラスト１７の下面に介在する裏布６を介してサ
イドモールド１５．１６とラスト１７との間の裏布６に
流れて容易にガス抜きされて自家発泡が良好に行われ、
靴内底３が靴本体１と靴外底２との間に良好に成形され
る。Thereafter, the rod 26 of the bottom mold 21 is lowered to form a spool 26a penetrating the molded outsole 2, and the spools 27 and 26 of the bottom mold 21 are
A self-foaming polyvinyl chloride resin is injected through a to form the shoe inner sole 3, and the shoe body 1 and the shoe outer sole 2 are welded together by the shoe inner sole 3. At this time, the exposed portion 10 extending to the outer periphery of the underlined part of the shoe body 1 and filling the gap 9 between the lower edge and the outer peripheral edge 7 of the shoe outsole 2 is formed by the bottom mold 21.
It is formed by a runner 28 provided in the. Further, the gas generated when the injected self-foaming resin foams passes through the lining fabric 6 interposed on the lower surface of the last 17 to the lining fabric 6 between the side mold 15.16 and the last 17. It flows and degasses easily, allowing for good self-foaming.
The shoe inner sole 3 is well formed between the shoe body 1 and the shoe outer sole 2.
（効 果）
本発明は、前記の説明から明らかなように、靴本体と靴
外底との間に介在させた自家発泡性樹脂からなる靴内底
を該靴本体内に露出させて設けたので、クツション性に
優れ履き心地が良好で軽量あると共に靴本体、靴外底及
び靴内底とが堅牢に接合され耐久性に優れ、更に靴本体
の下縁部外層に露出する靴内底が接着テープ様の外観を
与えて意匠的にも優れた射出成形靴を提供することがで
きる。(Effects) As is clear from the above description, the present invention has a shoe inner sole made of a self-foaming resin interposed between the shoe body and the shoe outer sole, which is exposed inside the shoe body. Therefore, it has excellent cushioning properties, is comfortable to wear, and is lightweight, and the shoe body, outer sole, and inner sole are firmly joined, resulting in excellent durability. It is possible to provide injection molded shoes that have an appearance similar to adhesive tape and are excellent in design.
本発明の製造方法によれば、前記本発明の射出成形靴を
全て射出成形のみで製造することができ該射出成形靴を
廉価に製造することができるの効果がある。According to the manufacturing method of the present invention, the injection molded shoes of the present invention can be manufactured entirely by injection molding, and the injection molded shoes can be manufactured at low cost.
第１図は本発明の実施の一例を示す説明的断面図、第２
図及び第３図は、その製造方法の実施の一例を示す説明
的断面図である。
ｌ・・靴本体 ２・・靴外底
３・・靴内底 ５・・内周縁部７・・外周縁部FIG. 1 is an explanatory cross-sectional view showing an example of the implementation of the present invention, and FIG.
3 and 3 are explanatory cross-sectional views showing an example of the implementation of the manufacturing method. l...Shoe body 2...Shoe outer sole 3...Shoe inner sole 5...Inner peripheral edge 7...Outer peripheral edge
Claims (1)
備えた射出成形靴において、該靴本体が開口する下縁部
全周に内方に延びる内周縁部を備え、該靴本体と前記靴
外底との間隙を充填すると共に靴外底の外周縁部と靴本
体の下縁部との間隙を介して靴本体の下縁部外面に延び
て靴外底を靴本体に一体に溶着する前記樹脂と同一の樹
脂からなる発泡性靴内底を射出成形により設けたことを
特徴とする射出成形靴 ２、前記靴本体と前記靴外底とを各別に射出成形する工
程と、成形された靴本体と靴外底とを溶着可能な状態に
加熱保持して前記靴内底を形成するための空隙部を介し
て対置して、該空隙部に前記靴内底用樹脂を射出して靴
内底を形成し、該靴内底を介して靴本体と靴外底とを溶
着する工程とからなることを特徴とする請求項１記載の
射出成形靴の製造方法[Scope of Claims] 1. In an injection molded shoe comprising a shoe body made of a soft synthetic resin and an outer sole made of the same resin, an inner circumferential edge extending inward around the entire circumference of the lower edge where the shoe body opens. a part that fills the gap between the shoe body and the shoe outsole and extends to the outer surface of the lower edge of the shoe body through the gap between the outer peripheral edge of the shoe outsole and the lower edge of the shoe body. An injection-molded shoe 2 characterized in that a foamed inner sole made of the same resin as the resin whose outer sole is integrally welded to the shoe body is provided by injection molding, the shoe body and the shoe outer sole are each A separate injection molding step is performed, and the molded shoe body and the shoe outer sole are heated and held in a weldable state to form the shoe inner sole. The injection molded shoe according to claim 1, further comprising the steps of injecting a shoe inner sole resin to form the shoe inner sole, and welding the shoe body and the shoe outer sole via the shoe inner sole. manufacturing method
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63088278A JP2585358B2 (en) | 1988-04-12 | 1988-04-12 | Injection molded shoes and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63088278A JP2585358B2 (en) | 1988-04-12 | 1988-04-12 | Injection molded shoes and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01259801A true JPH01259801A (en) | 1989-10-17 |
| JP2585358B2 JP2585358B2 (en) | 1997-02-26 |
Family
ID=13938437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63088278A Expired - Fee Related JP2585358B2 (en) | 1988-04-12 | 1988-04-12 | Injection molded shoes and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2585358B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2719199A1 (en) * | 1994-04-29 | 1995-11-03 | Salomon Sa | Method of assembling a shoe and shoe obtained by assembly according to such a method. |
| WO2003020490A1 (en) * | 2001-08-30 | 2003-03-13 | Oshima Electric Works Co., Ltd. | Injection molding and manufacture method thereof |
| WO2016004360A1 (en) * | 2014-07-03 | 2016-01-07 | Nike Innovate C.V. | Method of making an article of footwear with a segmented plate |
| CN113017188A (en) * | 2021-03-10 | 2021-06-25 | 黄凯涛 | Shoe and preparation process thereof |
| JP2021146732A (en) * | 2020-03-20 | 2021-09-27 | キング スチール マシネリー カンパニー リミテッド | Injection molding method |
| US11780129B2 (en) | 2020-03-20 | 2023-10-10 | King Steel Machinery Co., Ltd. | Molding method for operating molding device |
-
1988
- 1988-04-12 JP JP63088278A patent/JP2585358B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2719199A1 (en) * | 1994-04-29 | 1995-11-03 | Salomon Sa | Method of assembling a shoe and shoe obtained by assembly according to such a method. |
| WO1995029606A1 (en) * | 1994-04-29 | 1995-11-09 | Salomon S.A. | Footwear assembly method and resulting footwear |
| WO2003020490A1 (en) * | 2001-08-30 | 2003-03-13 | Oshima Electric Works Co., Ltd. | Injection molding and manufacture method thereof |
| JPWO2003020490A1 (en) * | 2001-08-30 | 2004-12-16 | 株式会社大嶋電機製作所 | Injection molded body and method for producing the same |
| WO2016004360A1 (en) * | 2014-07-03 | 2016-01-07 | Nike Innovate C.V. | Method of making an article of footwear with a segmented plate |
| JP2021146732A (en) * | 2020-03-20 | 2021-09-27 | キング スチール マシネリー カンパニー リミテッド | Injection molding method |
| US11780129B2 (en) | 2020-03-20 | 2023-10-10 | King Steel Machinery Co., Ltd. | Molding method for operating molding device |
| CN113017188A (en) * | 2021-03-10 | 2021-06-25 | 黄凯涛 | Shoe and preparation process thereof |
| CN113017188B (en) * | 2021-03-10 | 2022-02-15 | 黄凯涛 | Shoe and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2585358B2 (en) | 1997-02-26 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |