JPH0123122B2 - - Google Patents
Info
- Publication number
- JPH0123122B2 JPH0123122B2 JP59064459A JP6445984A JPH0123122B2 JP H0123122 B2 JPH0123122 B2 JP H0123122B2 JP 59064459 A JP59064459 A JP 59064459A JP 6445984 A JP6445984 A JP 6445984A JP H0123122 B2 JPH0123122 B2 JP H0123122B2
- Authority
- JP
- Japan
- Prior art keywords
- sole
- heel
- molding
- protrusions
- grooves
- 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
- 238000000465 moulding Methods 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 239000012778 molding material Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
【発明の詳細な説明】
この発明は射出成形靴ならびにその製造法に関
するものであつて、その目的とするところは軽量
でクツシヨン性、耐久性に優れた品質の安定した
靴を廉価に提供しようとするものである。出願人
は特願昭57−34183号（特開昭58−152504号）に
よつて、胛部を吊込んだ靴型と左右の側部型と踵
部において下部が狭窄された突起を成形面に立設
した底型によつて形成された成形空隙に靴底成形
材を射出して胛部の底に靴底を一体に装着成形す
ることを特徴とする靴の射出成形法を提案した
が、突起の高さによつては突起によつて踵部成形
空隙における靴底成形材の流動性が著しく阻害さ
れ、靴底材の充填不足個所を生じ、その結果不良
率が高くなりコスト高になる欠点があつた。[Detailed Description of the Invention] This invention relates to injection molded shoes and a method for manufacturing the same, and the purpose thereof is to provide lightweight shoes with excellent cushioning properties and durability, and stable quality at a low price. It is something to do. In accordance with Japanese Patent Application No. 57-34183 (Japanese Patent Application No. 58-152504), the applicant has developed a shoe last with a hanging lace, left and right side molds, and a protrusion narrowed at the lower part of the heel on the molding surface. We have proposed an injection molding method for shoes, which is characterized by injecting a sole molding material into a molding gap formed by an upright sole mold and integrally molding the sole on the sole of the lace. Depending on the height of the protrusions, the protrusions can significantly impede the fluidity of the sole molding material in the heel molding cavity, resulting in insufficient filling of the sole material, resulting in a high defect rate and high costs. There was a drawback.
この発明はこれらの欠点を除去したものであつ
て、靴底の踵部に、接地面に開口する溝１，１…
を設けたものにおいて、踵部中央辺ａに形成され
た溝１１，１１…がその左右側辺ｂ，ｂ…に形成
された溝１２，１２…よりも浅いことを特徴とす
る射出成形靴を第１の発明とし、左右の側部型
２，２と胛部３を吊込んだ靴型４と、踵部成形中
央辺a′に成形された突起５１１，５１１がその左
右側辺b′，b′に形成された突起５１２，５１２…
よりも低い突起５１，５１…を有する底型５とに
よつて形成された靴底成形空隙６に、該成形空隙
６の踵部中央後方c′に設けられた射出口７を通し
て、靴底成形材を射出充填して靴底８を成形する
と同時に靴底８を胛部に接着させた後、突起５
１，５１…を介して靴底８を常法によつて底型５
によつて冷却することを特徴とする射出成形靴の
製造法を第２の発明とするものである。 This invention eliminates these drawbacks, and includes grooves 1, 1, which open on the ground surface in the heel portion of the sole of the shoe.
An injection molded shoe characterized in that the grooves 11, 11... formed on the central side a of the heel part are shallower than the grooves 12, 12... formed on the left and right sides b, b... The first invention has a shoe last 4 in which the left and right side molds 2, 2 and the laces 3 are suspended, and protrusions 511, 511 formed on the heel molding center side a', and the left and right sides b', Protrusions 512, 512... formed on b'
The sole molding cavity 6 formed by the sole mold 5 having lower protrusions 51, 51... is passed through the injection port 7 provided at the rear center of the heel part of the molding cavity 6. After molding the sole 8 by injection filling the material and simultaneously adhering the sole 8 to the laces, the protrusion 5 is
1, 51..., the sole 8 is formed into a sole mold 5 by a conventional method.
A second invention provides a method for manufacturing injection molded shoes characterized by cooling the shoes by cooling the shoes.
この発明において、射出成形靴とは靴底８のみ
を成形した短靴乃至靴底８と胴部と外胛部を射出
成形した長靴を含めたものを意味する。したがつ
て特許請求の範囲に云う胛部とは長靴の場合、裏
布即ち内胛被を云うものである。 In the present invention, injection molded shoes include short shoes in which only the sole 8 is molded, and boots in which the sole 8, torso, and outer heel are injection molded. Therefore, in the case of boots, the lace part referred to in the claims refers to the lining fabric, that is, the inner lace part.
便宜上第２の発明から説明すると、この発明に
おいて底型５の踵成形辺に形成される突起５１，
５１…は一体に形成した平板乃至波形板状のもの
を第５図に示すように短手方向に並列しておいて
もよいし、第６図に示すように長手方向に並列し
ていてもよいし、第７図に示すように多数の独立
したものを一定の間隔を置いて配列しておいても
よい。この発明において底型５の踵成形辺に形成
される突起５１，５１…が第５図に示すように平
板乃至波形板状のものを短手方向に並列されてい
る場合、踵部成形中央辺a′において突起５１，５
１…に凹部５１１０，５１１０…を形成し、該中
央辺a′に位置する突起５１１，５１１…をその左
右側辺b′，b′に位置する突起５１２，５１２…よ
りも低く形成し、しかも短手方向に配列された突
起の凹部５１１０，５１１０…を爪先部方向に放
射状に拡大しておけば、該凹部５１１，５１１…
によつて、靴底成形空隙６の踵部中央後方c′に設
けられた射出口７を通して、靴底成形材の踏付部
d′乃至爪先部e′方向への流動性が促進されるので
不良率が一層低下される。 To explain from the second invention for convenience, in this invention, the protrusion 51 formed on the heel molding side of the sole mold 5,
51... may be integrally formed flat plates or corrugated plates arranged in parallel in the transverse direction as shown in Fig. 5, or in parallel in the longitudinal direction as shown in Fig. 6. Alternatively, as shown in FIG. 7, a large number of independent devices may be arranged at regular intervals. In this invention, when the protrusions 51, 51, . protrusion 51,5 at a'
1... are formed with recesses 5110, 5110..., and the protrusions 511, 511... located on the central side a' are formed lower than the protrusions 512, 512... located on the left and right sides b', b', and If the recesses 5110, 5110... of the protrusions arranged in the transverse direction are expanded radially in the direction of the toe, the recesses 511, 511...
The treading part of the sole molding material is passed through the injection port 7 provided at the center rear c' of the heel part of the sole molding cavity 6.
Since the fluidity in the direction from d' to the toe part e' is promoted, the rejection rate is further reduced.
そして、この発明において、靴型４に吊込まれ
る胛部３が胛被３１の下周縁と中底３２の外周縁
を縫着してなり、しかもその縫代３３が靴底成形
空隙６に突出されるものである場合は、縫代３３
が位置する部分に対向して位置する突起５１３，
５１３…をその左右辺に位置する突起よりも低く
形成しておけば、これによつて成形された靴底８
において、該縫代３３の下辺を厚肉に形成して補
強できるので耐久性を良好にし、しかも縫代３３
が靴底に形成された溝１，１…に露出して外観を
低下させたり、露出された縫代３３を介して靴内
に水が滲透したりすることがない。 In this invention, the lace part 3 suspended from the shoe last 4 is formed by sewing the lower periphery of the lace 31 and the outer periphery of the midsole 32, and the seam allowance 33 protrudes into the sole molding gap 6. If the seam allowance is 33
a protrusion 513 located opposite to the part where is located;
If 513... is formed lower than the protrusions located on the left and right sides, the sole 8 formed by this
In this case, since the lower side of the seam allowance 33 can be reinforced by forming a thick wall, durability can be improved, and the seam allowance 33 can be reinforced.
are not exposed to the grooves 1, 1, . . . formed in the sole of the shoe and deteriorate the appearance, and water does not seep into the shoe through the exposed seam allowance 33.
また突起５１，５１…は底型５の踵成形外周辺
を除いて形成しておけば成形される靴底８の踵部
外周辺には溝１，１…が成形されることがないの
で、その外周辺によつて靴底の踵部が補強でき
る。 In addition, if the protrusions 51, 51... are formed except for the outer periphery of the heel molding of the sole mold 5, the grooves 1, 1... will not be formed on the outer periphery of the heel of the sole 8 to be molded. The heel portion of the sole can be reinforced by the outer periphery.
そして、この発明において靴底射出成形材とし
ては塩化ビニル樹脂、EVA、液状ポリウレタン、
熱可塑性ゴム等通常の射出成形靴に使用されるも
のが使用される。 In this invention, the sole injection molding materials include vinyl chloride resin, EVA, liquid polyurethane,
Thermoplastic rubber and other materials used in ordinary injection molded shoes are used.
前述の第２の発明、またはその他の同効な方法
によつて製造されたものが第１の発明の射出成形
靴である。 The injection molded shoe of the first invention is manufactured by the above-mentioned second invention or other equally effective method.
この発明は以上のように構成されているので、
第２の発明において、靴底成形空隙６の踵部中央
後方c′に設けられた射出口７を通して、靴底成形
材を靴底成形空隙６に射出した場合、底型５に設
けられた突起５１，５１…が踵部成形中央辺ａに
おいて形成された突起５１１，５１１…がその左
右側辺b′，b′に形成された突起５１２，５１２…
よりも低く形成されているので、踵部成形辺a′に
おいて、成形空隙が拡張されることになり、靴底
成形材の踏付部d′乃至爪先部e′方向への流動性が
促進され、靴底成形材の靴底成形空隙６に対する
充填不足が回避され不良率が低下され、品質の安
定した靴が廉価に提供できる。また靴底８成形
後、突起５１，５１…を介して靴底８を常法によ
つて底型５によつて冷却固化できるので靴底８の
踵部が厚肉であつても、踵部の冷却が短時間で済
み能率的である。そして成形された靴底８は踵部
に溝１，１…が形成されているので軽量であり、
しかも踵部中央辺ａにおいて該溝１，１…がその
左右側辺ｂ，ｂに形成された溝１２，１２…より
も浅く、したがつて踵部中央辺ａにおいて靴底８
が厚肉に形成されているので、靴底の踵部に溝
１，１…が形成されていたとしても靴底の踵部に
おける屈曲変形が防止され、耐久性に優れた靴底
を提供できる。また靴底の踵部中央辺ａの左右側
辺ｂ，ｂにおいては溝１２，１２…が深く形成さ
れているので、溝１２，１２…によつて適度なク
ツシヨン性を保持できる。 Since this invention is configured as described above,
In the second invention, when the sole molding material is injected into the sole molding cavity 6 through the injection port 7 provided at the center rear c' of the heel part of the sole molding cavity 6, the protrusion provided on the sole mold 5 The protrusions 511, 51... are formed on the heel molding center side a, and the protrusions 512, 512... are formed on the left and right sides b', b'.
Since it is formed lower than the heel molding side a', the molding gap is expanded, and the fluidity of the sole molding material in the direction from the treading part d' to the toe part e' is promoted. Insufficient filling of the sole molding cavity 6 with the sole molding material is avoided, the defective rate is reduced, and shoes with stable quality can be provided at a low price. In addition, after the sole 8 is formed, the sole 8 can be cooled and solidified by the sole mold 5 in a conventional manner through the protrusions 51, 51, etc., so even if the heel of the sole 8 is thick, the heel Cooling time is short and efficient. The molded sole 8 has grooves 1, 1... formed in the heel, so it is lightweight.
Moreover, the grooves 1, 1, .
is formed with a thick wall, so even if the grooves 1, 1... are formed in the heel part of the sole, bending deformation in the heel part of the shoe sole is prevented, and a sole with excellent durability can be provided. . Further, since the grooves 12, 12, . . . are formed deeply on the left and right sides b, b of the heel center side a of the sole, appropriate cushioning properties can be maintained by the grooves 12, 12, .
また溝１，１…を薄肉に形成しておけば、履用
時に溝１，１…に小石等がかみ込まれることなく
便利である。 Furthermore, if the grooves 1, 1... are formed thin, it is convenient to prevent pebbles or the like from getting caught in the grooves 1, 1... when worn.
図面は実施例を示すものであつて、第１図は第
１の発明の射出成形靴の見取り図であり、第２図
は第１図のＸ−Ｘ線における断面図であり、第３
図は第２の発明による第１図の射出成形靴の製造
法を示す短手方向における要部断面図であり、第
４図は第１図の射出成形靴の製造法を示す長手方
向における要部断面図であり、第５図は第３，４
図の底型の見取り図である。第６図は他の実施例
における底型の見取り図であり、第７図は別の実
施例の底型の見取り図である。
符号の説明、１……溝、１１……溝、１２……
溝、２……側部型、３……胛部、３１……胛被、
３２……中底、３３……縫代、４……靴型、５…
…底型、５１……突起、５１１……突起、５１２
……突起、５１３……突起、５１１０……凹部、
６……靴底成形空隙、７……射出口、８……靴
底、ａ……靴底の踵部中央辺、ｂ……外側辺、ａ
……底型の踵部成形中央辺、ｂ……左右側辺、ｃ
……靴底成形空隙の踵部中央後方、ｄ……靴底成
形空隙の踏付部、ｅ……靴底成形空隙の爪先部。
The drawings show examples, and FIG. 1 is a sketch of the injection molded shoe of the first invention, FIG. 2 is a sectional view taken along the line X-X of FIG. 1, and FIG.
The figure is a cross-sectional view of the main parts in the transverse direction showing the method for manufacturing the injection molded shoe shown in FIG. 1 according to the second invention, and FIG. 5 is a partial sectional view, and FIG.
It is a sketch of the bottom mold of the figure. FIG. 6 is a sketch of a bottom mold in another embodiment, and FIG. 7 is a sketch of a bottom mold in another embodiment. Explanation of symbols, 1...groove, 11...groove, 12...
groove, 2... side mold, 3... lace part, 31... lace cover,
32...Insole, 33...Seam allowance, 4...Shoe last, 5...
...Bottom mold, 51...Protrusion, 511...Protrusion, 512
... protrusion, 513 ... protrusion, 5110 ... recess,
6...Sole molding gap, 7...Injection port, 8...Sole, a...Central side of the heel of the sole, b...Outer side, a
... Center side of the heel molding of the bottom mold, b ... Left and right sides, c
. . . Central rear part of the heel of the sole molding cavity, d . . . treading part of the sole molding cavity, e . . . Toe part of the sole molding cavity.
Claims (1)
を設けたものにおいて、踵部中央辺ａに形成され
た溝１１，１１…がその左右側辺ｂ，ｂに形成さ
れた溝１２，１２…よりも浅いことを特徴とする
射出成形靴。 ２ 左右の側部型２，２と胛部３を吊込んだ靴型
４と、踵部成形中央辺a′に形成された突起５１
１，５１１…がその左右側辺b′，b′に形成された
突起５１２，５１２…よりも低い突起５１，５１
…を有する底型５とによつて形成された靴底成形
空隙６に、該成形空隙６の踵部中央後方C′に設け
られた射出口７を通して、靴底成形材を射出充填
して靴底８を成形すると同時に靴底８を胛部に接
着させた後、突起５１，５１…を介して、常法に
より底型５によつて靴底８を冷却することを特徴
とする射出成形靴の製造法。[Claims] 1. Grooves 1, 1, which open to the ground surface in the heel portion of the sole of the shoe.
An injection molded shoe characterized in that grooves 11, 11, . . . formed on the central side a of the heel are shallower than grooves 12, 12, . 2. A last 4 with left and right side molds 2, 2 and a lace part 3 suspended therein, and a protrusion 51 formed on the center side a' of the heel molding.
1,511... are lower protrusions 51, 51 than the protrusions 512, 512... formed on the left and right sides b', b'
A sole molding material is injected and filled into a sole molding cavity 6 formed by a sole mold 5 having... through an injection port 7 provided at the rear center C' of the heel part of the molding cavity 6. An injection molded shoe characterized in that after the sole 8 is molded and the sole 8 is bonded to the laces at the same time, the sole 8 is cooled by the sole mold 5 in a conventional manner via the protrusions 51, 51... manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064459A JPS60207602A (en) | 1984-03-30 | 1984-03-30 | Injection molded shoes and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064459A JPS60207602A (en) | 1984-03-30 | 1984-03-30 | Injection molded shoes and its production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60207602A JPS60207602A (en) | 1985-10-19 |
| JPH0123122B2 true JPH0123122B2 (en) | 1989-05-01 |
Family
ID=13258838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59064459A Granted JPS60207602A (en) | 1984-03-30 | 1984-03-30 | Injection molded shoes and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60207602A (en) |
-
1984
- 1984-03-30 JP JP59064459A patent/JPS60207602A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60207602A (en) | 1985-10-19 |
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