JPH11170398A - Injection molded shoe and its manufacture - Google Patents

Injection molded shoe and its manufacture

Info

Publication number
JPH11170398A
JPH11170398A JP9354112A JP35411297A JPH11170398A JP H11170398 A JPH11170398 A JP H11170398A JP 9354112 A JP9354112 A JP 9354112A JP 35411297 A JP35411297 A JP 35411297A JP H11170398 A JPH11170398 A JP H11170398A
Authority
JP
Japan
Prior art keywords
groove
heel
injection
shoe
wearing
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
Application number
JP9354112A
Other languages
Japanese (ja)
Other versions
JP3339812B2 (en
Inventor
Norihisa Kameyama
典央 亀山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Achilles Corp
Original Assignee
Achilles Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Achilles Corp filed Critical Achilles Corp
Priority to JP35411297A priority Critical patent/JP3339812B2/en
Publication of JPH11170398A publication Critical patent/JPH11170398A/en
Application granted granted Critical
Publication of JP3339812B2 publication Critical patent/JP3339812B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

PROBLEM TO BE SOLVED: To easily integrate a mounting unit within a groove of a shoe bottom heel at the time of injection molding by forming a push-out part in a direction separating from a side face of the groove parallel to a bottom at a site corresponding to the bottom of the groove of the unit. SOLUTION: A mounting unit (transparent synthetic resin hollow part) 21 is inserted into a groove 12 formed on an outer periphery of a shoe bottom heel 11. A push-outpart (flangepart) 22A is formed in a direction separating from a side face of the groove 12 parallel to a bottom BS at a site corresponding to the bottom BS of the groove 12 of the unit 21. Or, a substantially rectangular shape heel inner member (heel core) is mounted at the unit 21. And, the side face of the heel core becomes the push-out part. The heel core may be a non-hollow part (a solid part made of cork or the like). In this case, it is formed as a hollow block. Its hollow part communicates with a hollow part of the unit 21. An integral member of the unit 21 and the heel core becomes a mounting member.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、靴底踵部の外周に
形成した溝内に、装用体が収納された射出成形靴および
その製造方法に関し、前記溝が形成された靴底踵部の履
用特性を向上させた前記射出成形靴、および靴底の射出
成形時に前記装用体を前記溝内に靴底踵部に容易に一体
化できる前記製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection-molded shoe in which a wearing body is housed in a groove formed on the outer periphery of a heel portion of a shoe sole, and a method of manufacturing the same. The present invention relates to the above-mentioned injection-molded shoe with improved wear characteristics and the above-mentioned manufacturing method in which the above-mentioned wearing body can be easily integrated with the heel portion of the shoe sole during the injection molding of the shoe sole.

【0002】[0002]

【技術背景】従来、(i)靴底踵部の外周に溝を形成し
た射出成形靴(実開昭64−54801号公報参照)、
(ii)当該溝に合成樹脂中空体を取り付けた射出成形
靴が知られている。(i)の射出成形靴は、靴底の軽量
化を図る一方で、溝構造により踵部周囲の衝撃吸収を行
うことができ、また(ii)の射出成形靴は、靴底の軽
量化に加え、意匠効果をより高めることができる。
2. Description of the Related Art Conventionally, (i) an injection-molded shoe having a groove formed on the outer periphery of a heel portion of a shoe sole (see Japanese Utility Model Application Laid-Open No. 64-54801),
(Ii) An injection molded shoe in which a synthetic resin hollow body is attached to the groove is known. The injection-molded shoe (i) can reduce the weight of the sole, while the groove structure can absorb shock around the heel, and the injection-molded shoe (ii) can reduce the weight of the sole. In addition, the design effect can be further enhanced.

【0003】図6(A)は、上記(ii)の射出成形靴
の踵部の側面図、図6(B)は(A)におけるX−X線
の垂直断面図である。図6(A),(B)の射出成形靴
9では、靴底踵部91の外周に形成した溝92に、合成
樹脂からなる中空体93が挿着されている。ところで、
この射出成形靴9では、中空体93は、靴底を形成した
後に、手作業により溝92内に接着材により固着され
る。このため、中空体93(または/および溝92の内
面)への接着材塗布作業や、中空体93の溝92内部へ
の挿着作業により、製造工程が煩雑化する。また、中空
体93が溝92内部に不正確な配置で取り付けられた場
合には、修復が容易ではないため、中空体93の上記の
接着や挿着には熟練が必要とされる。さらに、溝92の
深さを深くすると、履用時に踵部に加わる負荷によって
は、図6(B)に一点鎖線Yや二点鎖線Zで示したよう
に溝92が歪み、靴底踵部の本来の剛性や衝撃吸収性が
保証されないという問題もある。
FIG. 6A is a side view of the heel portion of the injection molded shoe of (ii), and FIG. 6B is a vertical sectional view taken along line XX in FIG. 6A and 6B, a hollow body 93 made of synthetic resin is inserted into a groove 92 formed on the outer periphery of a heel portion 91 of a shoe sole. by the way,
In this injection-molded shoe 9, the hollow body 93 is manually fixed in the groove 92 by an adhesive after forming the shoe sole. For this reason, the manufacturing process is complicated by the work of applying the adhesive to the hollow body 93 (and / or the inner surface of the groove 92) and the work of attaching the hollow body 93 to the inside of the groove 92. In addition, if the hollow body 93 is mounted in the groove 92 with an incorrect arrangement, repair is not easy, and thus the above-mentioned bonding and insertion of the hollow body 93 requires skill. Further, when the depth of the groove 92 is increased, the groove 92 is distorted as shown by a one-dot chain line Y or a two-dot chain line Z in FIG. There is also a problem that the original rigidity and shock absorbency of the above are not guaranteed.

【0004】一方、靴底踵部に踵内部材を取り付けた射
出成形靴が種々知られている(特公昭38−21285
号、特開昭59−168802号公報、特開昭62−2
24302号、特開昭63−200703号参照)。こ
の種の射出成形靴は、踵内部材を射出により形成した
り、別部材として作成した踵内部材を射出時に靴底内に
埋設するものである。踵部材を射出により形成する場合
には、踵部材の材質が限定されると言う問題があり、ま
た別部材として作成した踵部材を射出時に靴底内に埋設
する場合には、当該踵部材を安定して靴底キャビティ内
に保持することが容易ではないという問題がある。
On the other hand, various injection molded shoes in which a heel inner member is attached to a heel portion of a shoe sole are known (Japanese Patent Publication No. 38-21285).
JP-A-59-168802, JP-A-62-282
24302, JP-A-63-200703). In this type of injection-molded shoe, the inner heel member is formed by injection, or the inner heel member formed as a separate member is embedded in the shoe sole at the time of injection. When the heel member is formed by injection, there is a problem that the material of the heel member is limited, and when the heel member created as a separate member is embedded in the shoe sole at the time of injection, the heel member is There is a problem that it is not easy to stably hold it in the sole cavity.

【0005】[0005]

【発明の目的】本発明の目的は、靴底踵部の外周に形成
した溝内に、装用体が収納されされてなる射出成形靴の
履用特性を向上させることである。本発明の他の目的
は、前記射出成形靴の靴底射出成形時に、前記装用体を
前記溝内に靴底踵部に容易に一体化することで、前記射
出成形靴を容易に製造することである。本発明のさらに
他の目的は、靴底の射出成形時に踵内部材を靴底踵部内
に容易に埋設することである。
SUMMARY OF THE INVENTION It is an object of the present invention to improve the wearing characteristics of an injection molded shoe in which a wearing body is housed in a groove formed on the outer periphery of a heel portion of a shoe sole. Another object of the present invention is to easily manufacture the injection-molded shoe by easily integrating the wearing body with the heel portion of the shoe sole in the groove during sole injection molding of the shoe. It is. Still another object of the present invention is to easily embed the inner heel member in the heel portion of the sole during the injection molding of the sole.

【0006】[0006]

【発明の概要】本発明の射出成形靴は、靴底踵部の外周
に形成した溝内に、装用体が収納されてなるもので、前
記装用体の前記溝の底面に相応する部位に、当該底面に
平行でかつ当該溝の側面から遠ざかる向きに、迫出し部
が形成されていることを特徴とする。
SUMMARY OF THE INVENTION An injection-molded shoe according to the present invention comprises a wearing body accommodated in a groove formed on the outer periphery of a heel portion of a shoe sole, and a portion corresponding to a bottom surface of the groove of the wearing body, A protruding portion is formed parallel to the bottom surface and away from the side surface of the groove.

【0007】本発明は、典型的には、踵部に段差がない
スポーツシューズに適用される。装用体が収納される溝
は、通常、靴底踵部の内側(第1指側)外周および外側
(第5指側)外周の双方に形成される。通常、内側外周
に形成した溝内に収納された装用体と、外側外周に形成
した溝内に収納された装用体とは独立した構成とされ
る。溝の個数は内側外周および外側外周のそれぞれにつ
いて、1つとすることもできるし、2つ以上とすること
もできる。内側外周および外側外周とに形成される溝の
個数は同一でなくてもよい。
[0007] The present invention is typically applied to sports shoes having no step on the heel. The groove for accommodating the wearing body is usually formed on both the inner periphery (first finger side) and the outer periphery (fifth finger side) of the heel portion of the sole. Usually, the wearing body housed in the groove formed on the inner periphery and the wearing body housed in the groove formed on the outer periphery are independent. The number of grooves can be one for each of the inner outer periphery and the outer outer periphery, or can be two or more. The number of grooves formed on the inner outer circumference and the outer circumference may not be the same.

【0008】内側外周や外側外周に形成される溝が複数
個の場合、これらの溝は、当該外周に沿って1列に配置
することもできるし、前記外周に沿って上下2列に配置
することもできる。これら複数個の溝の全てに装用体が
収納される必要はない。また、上記複数個の溝(一方の
外周に形成される複数個の溝)それぞれに装用体を収納
する場合、各装用体は、連結された一体の部材として構
成してもよいし、非連結の別部材として構成してもよ
い。
When there are a plurality of grooves formed on the inner outer circumference and the outer outer circumference, these grooves can be arranged in a single row along the outer circumference, or in two upper and lower rows along the outer circumference. You can also. It is not necessary that the wearing body be housed in all of the plurality of grooves. When the wearing bodies are stored in the plurality of grooves (a plurality of grooves formed on one outer circumference), each of the wearing bodies may be configured as a connected integral member, or may be configured as a non-connected body. May be configured as a separate member.

【0009】溝は、靴底踵部の各外周に沿った長手形状
とすることもできるし、長手形状ではない円形,四角形
等とすることもできる。通常、装用体の形状は、溝形状
に相応する形状とされ、たとえば、溝が長手形状である
場合には装用体も長手形状とされるし、溝が円形状であ
る場合には装用体も円形状とされる。装用体は、通常は
合成樹脂からなり、中空体であってもよいし非中空体で
あってもよい。中空体の垂直断面は、四角形状、円弧状
等、種々の形状とすることができる。また、本発明の射
出成形靴では、踵芯等の踵内部材を前記装用体に取り付
けることもできる。この踵内部材は中空(装用体が中空
である場合に、これに連通していてもよいし、これとは
連通していなくてもよい)とすることもできるし、非中
空とすることもできる。
The groove may be formed in a longitudinal shape along each outer periphery of the heel portion of the shoe sole, or may be formed in a non-longitudinal shape such as a circle or a square. Usually, the shape of the wearing body is a shape corresponding to the groove shape, for example, when the groove is a long shape, the wearing body is also a long shape, and when the groove is a circular shape, the wearing body is also It has a circular shape. The wearing body is usually made of a synthetic resin, and may be a hollow body or a non-hollow body. The vertical cross section of the hollow body can have various shapes such as a square shape and an arc shape. Further, in the injection molded shoe of the present invention, an inner heel member such as a heel core can be attached to the wearing body. The inner member of the heel can be hollow (when the wearing body is hollow, it may or may not communicate with it), or it may be non-hollow it can.

【0010】本発明の射出成形靴によれば、靴底踵部の
外周に形成した溝による、踵部の軽量化、および装用体
によるデザインの多様化を図ることができることはもち
ろん、装用体に設けた迫出し部が、踵部内部に埋まって
いるので、履用時に溝が好ましくない状態歪むことはな
くなり、履用性能が向上する。
According to the injection molded shoe of the present invention, it is possible to reduce the weight of the heel portion and to diversify the design of the wearing body by using the groove formed on the outer periphery of the heel portion of the shoe sole. Since the provided protruding portion is buried in the inside of the heel portion, the groove is not distorted in an undesired state at the time of wearing, and the wearing performance is improved.

【0011】本発明の射出成形靴の製造方法は、サイド
モールドと、ボトムモールドと、ラストモールドとを閉
型し、この後これらのモールドにより形成されるキャビ
ティ内に靴底材料を射出することにより靴底を形成する
もので、上記の射出成形靴の製造に適用される。この製
造方法において使用されるサイドモールドは、靴底踵部
の前記溝(装用体が収容される溝)に対応する部位に、
垂直断面が凹形状をなす突起体が形成されている。この
突起体の凹部に、前記装用体が、前記迫出し部が前記突
起の凹形状の先端に接面するように取り付けられる。こ
の後、前記各モールドを閉型して靴底材料の射出が行わ
れる。
The method of manufacturing an injection-molded shoe according to the present invention comprises closing a side mold, a bottom mold and a last mold, and then injecting a shoe sole material into a cavity formed by these molds. It forms a shoe sole and is applied to the manufacture of the above-mentioned injection molded shoes. The side mold used in this manufacturing method has a portion corresponding to the groove (a groove for accommodating the wearing body) in the heel portion of the shoe sole,
A projection having a concave vertical cross section is formed. The wearing body is attached to the concave portion of the projection so that the protruding portion comes into contact with the concave tip of the projection. Thereafter, the molds are closed and the shoe sole material is injected.

【0012】本発明の射出成形靴の製造方法によれば、
装用体は極めて容易にサイドモールドに形成された溝に
取り付けられて、射出成形と同時に当該装用体は靴底踵
部の溝内に固着されるので、製造工程の簡略化が図られ
る。すなわち、装用体に設けた迫出し部は、踵部内部に
埋められる(迫出し部の、前記突起体の凹形状先端との
押接部よりも外側部分に靴底材料が回り込む)ので、装
用体は、接着材を用いることなく(接着材を用いる場合
よりも強固に)、前記溝内部に固着され、さらに、装用
体と一体となった踵芯等の踵内部材を射出成形時に、靴
底踵部に埋設できるので、踵内部材を靴底形成後に手作
業により埋設等する従来方法に比べて製造能率が飛躍的
に向上する。
According to the method for producing an injection-molded shoe of the present invention,
The wearing body is very easily attached to the groove formed in the side mold, and the wearing body is fixed in the groove of the heel portion of the shoe sole simultaneously with the injection molding, so that the manufacturing process is simplified. That is, the protruding portion provided on the wearing body is buried in the inside of the heel portion (the shoe sole material wraps around an outer portion of the protruding portion with respect to a pressing contact portion with the concave tip of the protrusion). The body is fixed to the inside of the groove without using an adhesive (more firmly than when an adhesive is used). Since it can be embedded in the bottom heel portion, the production efficiency is dramatically improved as compared with the conventional method in which the heel inner member is manually embedded after forming the shoe sole.

【0013】本発明の射出成形靴の製造方法では、装用
体が中空体である場合には、サイドモールドに形成され
た前記突起体を、その凹部の内側の垂直断面が、凹形状
先端の開口部よりも内側で拡がるような輪郭を持つよう
に構成することができる。この凹部に、前記装用体(中
空体)が、中空部が圧縮された状態で取り付けられた後
に、各モールドを閉型して靴底材料の射出が行われる。
この方法では、中空体は、射出成形靴の脱型後におい
て、前記溝内において膨らむので、溝底面の迫出し部表
面に形成される、前記突起体の凹形状先端の押接跡が完
全に隠蔽される。
In the method for manufacturing an injection-molded shoe according to the present invention, when the wearing body is a hollow body, the projection formed on the side mold is formed by removing the vertical cross section inside the recess by the opening at the tip of the recess. It can be configured to have a contour that extends inside the part. After the wearing body (hollow body) is attached to the concave portion in a state where the hollow portion is compressed, each mold is closed and the shoe sole material is injected.
In this method, since the hollow body expands in the groove after the mold is released from the injection molded shoe, the pressing contact mark of the concave-shaped tip of the protrusion formed on the surface of the protruding portion on the bottom of the groove is completely formed. Be concealed.

【0014】[0014]

【実施例】本発明の射出成形靴の一実施例を図1
(A),(B)に示す。図1(A)は、射出成形靴1の
踵部の側面図、図1(B)は(A)におけるP−P線の
垂直断面図である。図1(A),(B)において、靴底
踵部11の外周に形成された溝12には、装用体(ここ
では、透明な合成樹脂中空体21)が挿着されている。
中空体21の、溝12の底面BSに相応する部位には、
当該底面BSに平行に、溝12の側面から遠ざかる向き
に迫出し部(ここでは、フランジ22A)が形成されて
いる。図1(A),(B)では、中空体21とフランジ
22Aとの一体部材を装用部材2Aで示す。
FIG. 1 shows an embodiment of an injection molded shoe according to the present invention.
(A) and (B) show. FIG. 1A is a side view of a heel portion of the injection-molded shoe 1, and FIG. 1B is a vertical cross-sectional view taken along a line PP in FIG. 1A and 1B, a wearing body (here, a transparent synthetic resin hollow body 21) is inserted into a groove 12 formed on the outer periphery of the heel portion 11 of the shoe sole.
In a portion of the hollow body 21 corresponding to the bottom surface BS of the groove 12,
An extension (here, a flange 22A) is formed in a direction parallel to the bottom surface BS and away from the side surface of the groove 12. In FIGS. 1A and 1B, an integral member of the hollow body 21 and the flange 22A is indicated by a wearing member 2A.

【0015】本発明の射出成形靴の他の実施例を図1
(A),(B)に示す。図2(A),(B)は図1
(A),(B)と同様の、射出成形靴の踵部の側面図お
よび垂直断面図である。図2(A),(B)では、装用
体は図1(A),(B)と同様の中空体21からなる
が、この中空体21には概略四角形状の踵内部材(ここ
では、踵芯23)が取り付けられており、この踵芯23
の側面22Bが迫出し部となっている。踵芯23は、非
中空体(コルク等からなる中実体)であってもよいが、
図2(A),(B)では、中空ブロックとしてあり、そ
の中空部は、中空体21の中空部に連通している。図2
(A),(B)では、中空体21と踵芯23との一体部
材を装用部材2Bで示す。踵芯23は中空体21と同一
の素材により構成されていてもよいし、異なる素材によ
り構成されていてもよい。
FIG. 1 shows another embodiment of the injection molded shoe of the present invention.
(A) and (B) show. 2A and 2B show FIG.
It is the side view and vertical cross section of the heel part of an injection molding shoe similar to (A) and (B). 2 (A) and 2 (B), the wearing body is composed of a hollow body 21 similar to that of FIGS. 1 (A) and 1 (B), and this hollow body 21 has a substantially square heel inner member (here, The heel core 23) is attached,
The side surface 22B is a protruding portion. The heel core 23 may be a solid body (a solid body made of cork or the like),
In FIGS. 2A and 2B, the hollow block is a hollow block, and the hollow portion communicates with the hollow portion of the hollow body 21. FIG.
In (A) and (B), an integral member of the hollow body 21 and the heel core 23 is indicated by a wearing member 2B. The heel core 23 may be made of the same material as the hollow body 21 or may be made of a different material.

【0016】図1(A),(B)、および図2(A),
(B)に示した射出成形靴では、フランジ22Aや踵芯
23が、溝12の形状を保持するための構造部材として
機能するので、仮に、中空体21として弾力性が高いも
のを使用したとしても、履用時に溝12が、に歪むと言
った不都合(図6(B)参照)は生じない。
FIGS. 1A and 1B, and FIGS.
In the injection molded shoe shown in (B), since the flange 22A and the heel core 23 function as structural members for maintaining the shape of the groove 12, it is assumed that a hollow body 21 having high elasticity is used. However, the inconvenience that the groove 12 is distorted when worn (see FIG. 6B) does not occur.

【0017】以下、図1(A),(B)に示した射出成
形靴の製造方法の実施例を、図3〜図5により説明す
る。図3は、図1(A),(B)において使用されてい
る装用部材2Aの一部を切り欠いて示す斜視図である。
装用部材2Aは細長のボードBと、当該ボードB上にフ
ランジ22Aを残して形成された断面が略円弧状(ここ
で、円弧角θが180°よりも大きい)のドーム体D
とからなる。ボードBのフランジ22Aを除く部分と、
ドーム体Dとが、中空体21を形成している。なお、図
3には、ドーム体Dの高さをh、幅をWでそれぞれ
示し、ボードBの幅をWで示してある。
An embodiment of the method for manufacturing the injection-molded shoe shown in FIGS. 1A and 1B will be described below with reference to FIGS. FIG. 3 is a perspective view of the wearing member 2A used in FIGS. 1A and 1B with a part cut away.
The wearing member 2A has an elongated board B and a dome body D having a substantially arc-shaped cross section (here, the arc angle θ D is larger than 180 °) formed on the board B while leaving the flange 22A.
Consists of A portion excluding the flange 22A of the board B;
The dome body D forms the hollow body 21. Incidentally, in FIG. 3, respectively the height of the dome body D h D, the width W D, are the width of the board B in W B.

【0018】図4(A)は、本発明の製造方法に使用す
る射出成形靴のサイドモールド3の一例を示す踵部側部
の部分拡大図、図4(B)は(A)におけるQ−Q線の
垂直断面図である。なお、サイドモールド3は、2つで
1組として使用される。図4(A),(B)において、
靴底踵部の内側外周と外側外周に対応に部位(一方の外
周のみを示す)には、中空体21を装着するための突起
体31が形成されている。この突起体31は、垂直断面
が凹形状をなし、凹部311の内側輪郭は、開口部より
も内部がやや拡がった形状となっている。ここでは、凹
部の内側輪郭は、装用部材2Aのドーム体Dの断面の円
弧角θとほぼ同様の円弧角θの断面を有している。
ここでは、ドーム体Dの高さhは、突起体31の凹部
311の内側輪郭の深さdよりも低くなるように、ま
たドーム体Dの幅Wは、突起体31の凹部内側輪郭W
よりも大きくなるようにし、中空体21を圧嵌入保持
するように、装用部材2Aは設計されている。さらに、
ボードBの幅Wは、突起体31の幅Wよりも大きく
設計されている。
FIG. 4A is a partially enlarged view of an example of the side mold 3 of the injection-molded shoe used in the manufacturing method of the present invention, and FIG. It is a vertical sectional view of the Q line. The two side molds 3 are used as one set. In FIGS. 4A and 4B,
Protrusions 31 for mounting the hollow body 21 are formed on portions (only one outer circumference is shown) corresponding to the inner outer circumference and the outer outer circumference of the heel portion of the shoe sole. The protrusion 31 has a concave vertical cross section, and the inner contour of the concave portion 311 has a shape in which the inside is slightly wider than the opening. Here, the inner contour of the recess has substantially the same cross-section arc angle theta I arc angle theta D of the cross-section of the dome member D of the wear member 2A.
Here, the height h D of the dome body D, the width W D of the way lower than the depth d I of the inner contour of the recess 311, also dome member D of the protrusion 31, the recess inside the protrusion 31 Contour W
The wearing member 2A is designed to be larger than I and to press-fit and hold the hollow body 21. further,
Width W B of the board B is designed larger than the width W O of the protrusion 31.

【0019】靴底材料の射出に先立って、図3(A),
(B)の装用部材2Aの中空体21を、図4(A),
(B)のサイドモールド3に形成された突起体31の凹
部311に、フランジ22Aが突起体31の先端に接面
するように取り付ける。このとき、中空体21は、中空
部が圧縮された状態で、凹部311に嵌まり込む。装用
部材2Aのサイズと、突起体31の凹部311の内側輪
郭のサイズは、上記のように設計されているので、装用
部材2が、凹部311から脱落することはない。なお、
中空体21の先端部と凹部311の底面部との間には、
多少の空隙(突起体31のサイズの誤差吸収のために形
成されるもので、次に述べる図5の符合E参照)が生じ
ていてもよい。
Prior to the injection of the sole material, FIG.
The hollow body 21 of the wearing member 2A shown in FIG.
The flange 22A is attached to the concave portion 311 of the projection 31 formed on the side mold 3 shown in FIG. At this time, the hollow body 21 fits into the recess 311 in a state where the hollow portion is compressed. Since the size of the wearing member 2A and the size of the inner contour of the recess 311 of the projection 31 are designed as described above, the wearing member 2 does not fall out of the recess 311. In addition,
Between the tip of the hollow body 21 and the bottom of the recess 311,
Some voids (formed to absorb errors in the size of the projections 31 and see the symbol E in FIG. 5 described below) may occur.

【0020】この後、図5に示すように、中空体21が
それぞれ取り付けられた2つのサイドモールド3,3
と、ボトムモールド4と、ラストモールド5とを閉型
し、これらのモールドにより形成されるキャビティ内に
靴底材料を射出する。射出材料は、図5に点線矢印Nで
示すように、フランジ22Aの表面側(ボードBのドー
ム体Dが形成されている側)にも回り込む。このとき、
射出材料の流圧はフランジ22Aにより弱められてお
り、かつ中空体21は、中空部が圧縮された状態で、突
起体31の凹部に嵌まり込んでいるので、射出材料が突
起体31と中空体21との間の空隙Eに進入することは
ない。靴底の射出後に、射出成形靴を型から外すと、中
空体21は突起体31による圧縮から開放され、元の形
状に復帰する。これにより、図1(A),(B)にも示
したように、溝12の底面BSが隠蔽されるので、見栄
えが良くなるとともに中空体21と突起体31との間に
泥や埃が溜まることはない。
Thereafter, as shown in FIG. 5, the two side molds 3, 3 to which the hollow bodies 21 are respectively attached are provided.
Then, the bottom mold 4 and the last mold 5 are closed, and the shoe sole material is injected into a cavity formed by these molds. As shown by the dotted arrow N in FIG. 5, the injection material also wraps around the surface of the flange 22A (the side where the dome body D of the board B is formed). At this time,
The flow pressure of the injection material is weakened by the flange 22A, and the hollow body 21 is fitted into the recess of the projection 31 in a state where the hollow portion is compressed. It does not enter the gap E between itself and the body 21. When the injection-molded shoe is removed from the mold after the shoe sole is injected, the hollow body 21 is released from compression by the projection 31 and returns to its original shape. Thereby, as shown in FIGS. 1A and 1B, the bottom surface BS of the groove 12 is concealed, so that the appearance is improved, and at the same time, dirt and dust are formed between the hollow body 21 and the projection 31. It does not accumulate.

【0021】[0021]

【発明の効果】本発明では、装用体にフランジ等の迫出
し部を形成しているので、装用体が履用により脱落して
しまうことは皆無となる。また、装用体が収納される溝
の深さを深くしても、迫出し部が構造部材として機能す
る。したがって、当該溝が履用時に好ましくない状態で
歪むことはないので、靴底踵部の本来の剛性や衝撃吸収
性が保証される。
According to the present invention, since the protruding portion such as the flange is formed on the wearing body, the wearing body does not fall off when worn. Also, even if the depth of the groove in which the wearing body is stored is increased, the protruding portion functions as a structural member. Therefore, since the groove does not deform in an unfavorable state when worn, the original rigidity and shock absorption of the heel portion of the shoe sole are guaranteed.

【0022】装用体は、極めて容易にサイドモールドに
形成された突起体の凹形状部分に取り付けられて、靴底
の射出成形が行われるので、製造効率が飛躍的に向上
し、かつ装用体が不正確な配置で溝に取り付けられるこ
とはなくなった。
The wearing body is very easily attached to the concave portion of the projection formed on the side mold, and the injection molding of the shoe sole is performed, so that the manufacturing efficiency is greatly improved and the wearing body is improved. No longer incorrectly placed in grooves.

【0023】また、踵内部材を射出により形成する場
合、別部材として作成した踵内部材を射出時に靴底キャ
ビティ内に、安定した状態で埋設することができる。
Further, when the inner heel member is formed by injection, the inner heel member prepared as a separate member can be stably embedded in the shoe sole cavity at the time of injection.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の射出成形靴の一実施例を示す図であ
り、(A)は射出成形靴の踵部の側面図、(B)は
(A)におけるP−P線の垂直断面図である。
FIG. 1 is a view showing one embodiment of the injection-molded shoe of the present invention, wherein (A) is a side view of a heel portion of the injection-molded shoe, and (B) is a vertical sectional view taken along the line PP in (A). It is.

【図2】本発明の射出成形靴の他の実施例を示す図であ
り、(A)は射出成形靴の踵部の側面図、(B)は
(A)におけるP−P線の垂直断面図である。
FIG. 2 is a view showing another embodiment of the injection-molded shoe of the present invention, in which (A) is a side view of a heel portion of the injection-molded shoe, and (B) is a vertical cross section taken along the line PP in (A). FIG.

【図3】図1(A),(B)において使用されている装
用部材の一部を切り欠いて示す斜視図である。
FIG. 3 is a perspective view showing a part of the wearing member used in FIGS.

【図4】(A)は、本発明の製造方法に使用する射出成
形靴のサイドモールドの一例を示す踵部側部の部分拡大
図、(B)は(A)におけるQ−Q線の垂直断面図であ
る。
FIG. 4A is a partially enlarged view of a side portion of a heel showing an example of a side mold of an injection-molded shoe used in the manufacturing method of the present invention, and FIG. 4B is a vertical view taken along a line QQ in FIG. It is sectional drawing.

【図5】中空体がそれぞれ取り付けられた2つのサイド
モールドと、ボトムモールドと、ラストモールドとを閉
型し、これらのモールドにより形成されるキャビティ内
に靴底材料を射出した様子を示す図である。
FIG. 5 is a diagram showing a state in which two side molds, a bottom mold, and a last mold each having a hollow body attached thereto are closed, and a shoe sole material is injected into a cavity formed by these molds. is there.

【図6】(A)は、従来の射出成形靴の踵部の側面図、
(B)は(A)におけるX−X線の垂直断面図である。
FIG. 6A is a side view of a heel portion of a conventional injection-molded shoe,
(B) is a vertical sectional view taken along line XX in (A).

【符号の説明】[Explanation of symbols]

11 靴底踵部 12 溝 2A,2B 装用部材 21 中空体 22A フランジ 22B 踵芯側面 23 踵芯 3 サイドモールド 31 突起体 312 凹部 BS 凹部の底面 B ボード D ドーム体 DESCRIPTION OF SYMBOLS 11 Sole heel part 12 Groove 2A, 2B Wearing member 21 Hollow body 22A Flange 22B Heel core side surface 23 Heel core 3 Side mold 31 Projection 312 Concave part BS Bottom of concave part B Board D Dome body

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 靴底踵部の外周に形成した溝内に、装用
体が収納されてなる射出成形靴において、 前記装用体の前記溝の底面に相応する部位に、当該底面
に平行でかつ当該溝の側面から遠ざかる向きに、迫出し
部が形成されていることを特徴とする射出成形靴。
1. An injection molded shoe in which a wearing body is housed in a groove formed on an outer periphery of a heel portion of a shoe sole, wherein a part of the wearing body corresponding to a bottom surface of the groove is parallel to the bottom surface and An injection-molded shoe characterized in that a protruding portion is formed in a direction away from a side surface of the groove.
【請求項2】 前記装用体に、踵内部材が取り付けられ
ていることを特徴とする請求項1に記載の射出成形靴。
2. The injection molded shoe according to claim 1, wherein an inner heel member is attached to the wearing body.
【請求項3】 前記装用体は、垂直断面が円弧状をな
し、全体が靴底踵部の外周に沿った長手形状をなす合成
樹脂中空体であることを特徴とする請求項1または2に
記載の射出成形靴。
3. The wearable body according to claim 1, wherein the wearable body is a synthetic resin hollow body having a vertical cross section in an arc shape and having a longitudinal shape entirely along the outer periphery of the heel portion of the shoe sole. Injection molded shoes as described.
【請求項4】 サイドモールドと、ボトムモールドと、
ラストモールドとを閉型し、この後これらのモールドに
より形成されるキャビティ内に靴底材料を射出すること
により靴底を形成する、請求項1〜4の何れかに記載さ
れた射出成形靴を製造するための方法であって、 前記サイドモールドに形成された垂直断面が凹形状をな
す突起体の当該凹部に、前記装用体を、前記迫出し部が
前記突起の凹形状の先端に接面するように取り付け、こ
の後、前記各モールドを閉型して前記射出を行う、こと
を特徴とする射出成形靴の製造方法。
4. A side mold, a bottom mold,
The injection molded shoe according to any one of claims 1 to 4, wherein the shoe is formed by closing a last mold and thereafter injecting a shoe sole material into a cavity formed by these molds. A method for manufacturing, wherein the vertical section formed on the side mold has a concave shape, and the wearing body is in contact with the concave portion of the protrusion, and the protruding portion is in contact with the concave tip of the protrusion. And then performing the injection by closing each of the molds.
【請求項5】 請求項3に記載の射出成形靴を製造する
ための、請求項4に記載の方法であって、 垂直断面が凹形状先端の開口部よりも内側で拡がるよう
な輪郭を持つ前記突起体の凹部に、前記装用体を、前記
中空体内の中空部が圧縮されるように取り付ける、こと
を特徴とする射出成形靴の製造方法。
5. The method according to claim 4, for producing an injection molded shoe according to claim 3, wherein the vertical cross section has a contour that extends inside the opening of the concave tip. A method for manufacturing an injection-molded shoe, comprising: attaching the wearing body to a recess of the projection so that a hollow portion in the hollow body is compressed.
JP35411297A 1997-12-08 1997-12-08 Injection molded shoes and method of manufacturing the same Expired - Fee Related JP3339812B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35411297A JP3339812B2 (en) 1997-12-08 1997-12-08 Injection molded shoes and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35411297A JP3339812B2 (en) 1997-12-08 1997-12-08 Injection molded shoes and method of manufacturing the same

Publications (2)

Publication Number Publication Date
JPH11170398A true JPH11170398A (en) 1999-06-29
JP3339812B2 JP3339812B2 (en) 2002-10-28

Family

ID=18435381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35411297A Expired - Fee Related JP3339812B2 (en) 1997-12-08 1997-12-08 Injection molded shoes and method of manufacturing the same

Country Status (1)

Country Link
JP (1) JP3339812B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006095996A1 (en) * 2005-03-07 2006-09-14 Seong Jo Lim Shoe with the functions of shock absorption and airing and manufacturing method of the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106626466B (en) * 2017-03-22 2019-03-29 泉州玉环模具有限公司 Last carving pattern core for the double-colored upper of slippers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006095996A1 (en) * 2005-03-07 2006-09-14 Seong Jo Lim Shoe with the functions of shock absorption and airing and manufacturing method of the same
KR100677740B1 (en) * 2005-03-07 2007-02-02 임성조 Shoe with shock absorption and airing function and their manufacturing method

Also Published As

Publication number Publication date
JP3339812B2 (en) 2002-10-28

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