JP2005143637A - Manufacturing method for shoe - Google Patents

Manufacturing method for shoe Download PDF

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JP2005143637A
JP2005143637A JP2003382520A JP2003382520A JP2005143637A JP 2005143637 A JP2005143637 A JP 2005143637A JP 2003382520 A JP2003382520 A JP 2003382520A JP 2003382520 A JP2003382520 A JP 2003382520A JP 2005143637 A JP2005143637 A JP 2005143637A
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sole
peripheral surface
shoe
mold set
hole
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Shoken Ki
正賢 紀
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<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for shoe which increases the combining force between an upper and a sole, and also shows a good relief of a pattern on the sole as well. <P>SOLUTION: This manufacturing method for shoe includes a sole preparing process, an upper preparing process, a mold set preparing process, a mold set installing process, a sole expanding process, and a shoe taking out process. After the sole is softened by a heat transfer medium which is injected in a communication space of the thermoplastic sole, the sole is expanded against the internal wall of a mold, and the sole is brought into close contact with the internal wall surface of the mold set. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は靴の製造方法に関し、特にソールの外周面に凹凸模様を形成することができる靴の製造方法に関する。   The present invention relates to a method for manufacturing shoes, and more particularly to a method for manufacturing shoes capable of forming a concavo-convex pattern on the outer peripheral surface of a sole.

米国特許第４２６６３１４号に運動靴の製造方法が開示されている。この方法は、プラスチック材料からなる２つの重なるライニングを、金型に入れ、加熱しながら、加圧することによってスリッパのソール及びアッパーに覆ってから、アウトソールを接着するように行われる。しかしながら、この方法においては、加熱・加圧だけで、靴の構成部材を結合するので、アッパーとソールとの間の結合力が弱いので、分離しがちという欠点がある。   U.S. Pat. No. 4,266,314 discloses a method for manufacturing athletic shoes. This method is performed in such a manner that two overlapping linings made of plastic material are placed in a mold, heated and pressurized to cover the slipper sole and upper, and then the outsole is bonded. However, this method has a drawback in that the components of the shoe are joined only by heating and pressurization, so that the coupling force between the upper and the sole is weak, so that they tend to be separated.

また、ソールの外周面に模様が形成される靴の製造方法が知られている。この方法は、まずインソールブランクを加熱して軟化してから、軟化されたインソールブランクをアッパーとアウトソールと共に金型に入れて加熱しながら、加圧することにより、インソールブランクの外周面に金型で模様をエンボスすることができる。しかしながら、前記インソールブランクは前記金型に入れる前に、必ず加熱されなければならないので、その加熱による収縮率が不安定であるため、加熱された前記インソールブランクを前記金型に入れる時、前記金型とぴったり合わせないので、前記金型で前記インソールブランクを押圧することが困難である上、前記インソールブランクにエンボスされた模様も浮出しが良くないという欠点がある。   In addition, a method for manufacturing a shoe in which a pattern is formed on the outer peripheral surface of the sole is known. In this method, the insole blank is first heated and softened, and then the softened insole blank is placed in a mold together with the upper and the outsole, and heated and pressurized, so that the outer peripheral surface of the insole blank is molded with a mold. The pattern can be embossed. However, since the insole blank must be heated before being put into the mold, the shrinkage rate due to the heating is unstable. Therefore, when the heated insole blank is put into the mold, the mold Since it does not fit exactly with the mold, it is difficult to press the insole blank with the mold, and the embossed pattern on the insole blank also has a drawback that it is not well raised.

上記に鑑みて、本発明は、アッパーとソールとの間の結合力が向上するのみならず、ソールに模様の浮出しも良い靴の製造方法を提供することを目的とする。   In view of the above, it is an object of the present invention to provide a method for manufacturing a shoe that not only improves the bonding force between the upper and the sole, but also allows the pattern to be raised on the sole.

前記目的を達成するために、本発明は、上下両面と該上下両面間の周縁に沿いながら上へ延伸している周面と該上下周３面内に形成されている連通空間を有し、且つ、該周面に該連通空間と連通している通孔が形成してある熱可塑性ソールを用意するソール用意工程と、下面と該下面の周縁に沿いながら上へ延伸している周面とを有するアッパーを用意するアッパー用意工程と、組合わせにより靴を成型するためのキャビティーを形成することができ、且つその胴体内にそれぞれその内外両周面に開口している注入通路が開設してあり、前記内周面の開口が前記熱可塑性ソールの通孔と対応する位置にある金型セットを用意する金型セット用意工程と、前記アッパーの下面に接着剤を塗布する接着剤塗布工程と、前記アッパーを前記熱可塑性ソールの上方に配置して前記ソールの周面の上縁部を前記アッパーの周面の下縁部に外から覆わせると同時に、前記通孔と前記内周面の開口とを合わせるように前記アッパーと前記ソールとを金型セットのキャビティー内に入れる金型セット設置工程と、熱媒体を前記金型セットの外周面開口、注入通路、内周面開口、そして前記通孔を経由して前記熱可塑性ソールの連通空間に注入して前記ソールを軟化してから金型セットの内壁に対抗しながら拡張させるソール拡張工程と、前記金型セットから成型した靴を取り出す靴取出し工程とを備えることを特徴とする靴の製造方法を提供する。   In order to achieve the above object, the present invention includes a peripheral surface extending upward and downward along both the upper and lower surfaces and a peripheral space between the upper and lower surfaces, and a communication space formed in the upper and lower peripheral three surfaces. And a sole preparing step of preparing a thermoplastic sole in which a through hole communicating with the communication space is formed on the peripheral surface, and a peripheral surface extending upward along the periphery of the lower surface and the lower surface. The upper preparation step for preparing the upper and the cavity for molding the shoe can be formed by the combination, and the injection passages opened on the inner and outer peripheral surfaces are opened in the body. A mold set preparing step of preparing a mold set in which the opening of the inner peripheral surface is in a position corresponding to the through hole of the thermoplastic sole, and an adhesive applying step of applying an adhesive to the lower surface of the upper And the upper to the thermoplastic So that the upper edge of the peripheral surface of the sole is covered with the lower edge of the peripheral surface of the upper from the outside, and at the same time the opening of the inner peripheral surface is aligned with the through hole A mold set installation step for putting the upper and the sole into a cavity of the mold set, and a heating medium through the outer peripheral surface opening, the injection passage, the inner peripheral surface opening, and the through hole of the mold set. A sole expanding step of injecting into the communication space of the thermoplastic sole to soften the sole and then expanding the inner surface of the mold set against the inner wall of the mold set; and a shoe removing step of taking out the shoes molded from the mold set. A method for manufacturing a shoe is provided.

本発明の靴の製造方法によると、前記熱可塑性ソールの連通空間に注入する熱媒体によって前記ソールを軟化してから金型の内壁に対抗しながら拡張させることにより、前記ソールの表面を前記金型セットの内壁面とぴったり接触させるので、その外周面の前記金型の内壁面にエンボスされて出てくる模様を浮出しがはっきりさせるのみならず、前記ソールと前記アッパーとの間の結合力をも従来より遥かに向上させることができる。   According to the shoe manufacturing method of the present invention, the sole is softened by a heat medium injected into the communication space of the thermoplastic sole and then expanded while facing the inner wall of the mold, whereby the surface of the sole is made to be the mold. Since it is brought into close contact with the inner wall surface of the mold set, not only the embossed pattern appearing on the inner wall surface of the mold on the outer peripheral surface is clearly clarified, but also the connection between the sole and the upper The power can be improved much more than before.

以下、図面を参照しながら、本発明に係る靴の製造方法の好ましい実施形態を説明する。図１及び図２に示すのは本発明の第１の実施形態である。本発明の製造方法におけるソール用意，アッパー用意、及び、金型セット用意の３つの用意工程は、前後なく、同時に行うこともできるが、本実施形態においては、まず、ソール用意をし、即ち熱可塑性ソール１０を用意する（ソール用意工程）。本実施形態において、熱可塑性ソール１０はＴＰＵから構成されているが、これに限らず、ＰＶＣやＰＰ，ＡＢＳ，ＰＥ，ＴＰＲよりなる群れから選ばれたものが使用されてもよい。図３に示すように、この熱可塑性ソール１０は、上下両面１１，１２と上下両面１１，１２間の周縁に沿いながら上へ延伸している周面１３と、上下周３面内に形成されている連通空間１４を有し、且つ、周面１３に連通空間１４と連通している対称的な第１の通孔１６及び第２の通孔１７が形成してある。連通空間１４は、上下周３面１１，１２，１３に囲まれてなる空間内を複数の上下両面１１，１２間に延伸してなる支持部材としての通孔１５１付き連続壁１５により複数の小空間１４１に仕切るようになっている。なお、第２の通孔１７の孔径を第１の通孔１６の孔径より小さくする。   Hereinafter, preferred embodiments of a shoe manufacturing method according to the present invention will be described with reference to the drawings. 1 and 2 show a first embodiment of the present invention. The three preparation steps of the sole preparation, the upper preparation, and the mold set preparation in the manufacturing method of the present invention can be performed simultaneously without being mixed. In this embodiment, first, the sole is prepared, that is, the heat is prepared. A plastic sole 10 is prepared (sole preparation step). In the present embodiment, the thermoplastic sole 10 is made of TPU, but is not limited thereto, and a material selected from the group consisting of PVC, PP, ABS, PE, and TPR may be used. As shown in FIG. 3, the thermoplastic sole 10 is formed in a circumferential surface 13 that extends upward along the periphery between the upper and lower surfaces 11, 12 and the upper and lower surfaces 11, 12, and the upper and lower surfaces 3. A symmetric first through hole 16 and second through hole 17 are formed on the peripheral surface 13 and communicated with the communication space 14. The communication space 14 has a plurality of small walls by a continuous wall 15 with a through hole 151 as a support member that extends between a plurality of upper and lower surfaces 11, 12 in a space surrounded by the upper and lower circumferential surfaces 11, 12, 13. The space 141 is partitioned. The diameter of the second through hole 17 is made smaller than the diameter of the first through hole 16.

次に、下面２１と下面２１の周縁に沿いながら上へ延伸している周面２２とを有するアッパー２０を用意する（アッパー用意工程）。そして、図４に示すように、アッパー２０の周面２２のソール１０の周面１３に覆われる部分の直上に、条状の薄膜保護層２３を貼付する。   Next, the upper 20 having the lower surface 21 and the peripheral surface 22 extending upward along the periphery of the lower surface 21 is prepared (upper preparation step). Then, as shown in FIG. 4, a strip-shaped thin film protective layer 23 is affixed immediately above the portion of the peripheral surface 22 of the upper 20 that is covered by the peripheral surface 13 of the sole 10.

それに引き続いて、組合わせにより靴を成型するためのキャビティーを形成することができ、且つその胴体内にそれぞれその対称的な内外両周面に開口している注入通路４０１及び排出通路４０２が開設してあり、前記内周面の開口が熱可塑性ソール１０の第１の通孔１６及び第２の通孔１７と対応する位置にある金型セット４０を用意する（金型セット用意工程）。金型セット４０は、靴型３０を有する上型４１と、上型４０と対向する下型４２と、互いに対向する２つの側型４３とからなっている。   Subsequently, a cavity for molding a shoe can be formed by a combination, and an injection passage 401 and a discharge passage 402 are formed in the body, which are opened on both the inner and outer circumferential surfaces. A mold set 40 is prepared in which the opening on the inner peripheral surface is in a position corresponding to the first through hole 16 and the second through hole 17 of the thermoplastic sole 10 (mold set preparing step). The mold set 40 includes an upper mold 41 having a shoe mold 30, a lower mold 42 facing the upper mold 40, and two side molds 43 facing each other.

そして、アッパー２０の下面２１に接着剤を塗布する（接着剤塗布工程）。その後、アッパー２０を熱可塑性ソール１０の上方に配置してソール１０の周面１３の上縁部１３１をアッパー２０の周面２２の下縁部に外から覆わせると同時に、通孔１６と前記内周面の開口とを合わせるようにアッパー２０とソール１０とを金型セット４０のキャビティー内に入れる（金型セット設置工程）。   Then, an adhesive is applied to the lower surface 21 of the upper 20 (adhesive application step). Thereafter, the upper 20 is disposed above the thermoplastic sole 10 so that the upper edge 131 of the circumferential surface 13 of the sole 10 is covered from the lower edge of the circumferential surface 22 of the upper 20, and at the same time, The upper 20 and the sole 10 are placed in the cavity of the mold set 40 so as to match the opening on the inner peripheral surface (mold set installation step).

それから、図５に示すように、第２の通孔１７と排出通路４０２とからなる出口をあけたまま、熱媒体としての熱風５０を金型セット４０における注入通路４０１の外周面開口，注入通路４０１それ自体，注入通路４０１の内周面開口，そして第１の通孔１６を経由して熱可塑性ソール１０の連通空間１４に注入してソール１０を軟化してから金型セット４０の内壁に対抗しながら拡張させる（ソール拡張工程）。そして、金型セット４０における注入通路４０１及び排出通路４０２を経由して第１の通孔１６及び第２の通孔１７を密封してから（通孔密封工程）、金型セット４０から成型した靴を取り出す（靴取り出し工程）。最後に、成型過程に前記金型内から食み出して薄膜保護層２３に付着されたソール１０の余り部分（図４のＣ）を切断してから薄膜保護層２３と共にソール１０の周面１３から剥す。なお、本発明のソールにおける通孔及び金型セットにおける通路の数がそれぞれ一つだけでもよい（即ち熱媒体の出入り口を一つとすること）が、熱媒体の交換通過でソール１０の連通空間１４内に熱を適当に供給し続けて所定の温度に保持するため、本実施形態においては、それぞれ空気の入り口としての第１の通孔１６及び注入通路４０１と空気の出口としての第２の通孔１７及び排出通路４０２とを設け、また、連通空間１４内の圧力を一定に制御し、ソール拡張工程を順調に行うため、前記出口としての第２の通孔１７及び排出通路４０２の孔径の少なくとも一方（本実施形態においては第２の通孔１７の方）を入り口としての第１の通孔１６及び注入通路４０１の孔径より小さくする。   Then, as shown in FIG. 5, the hot air 50 as the heat medium is passed through the opening of the outer peripheral surface of the injection passage 401 and the injection passage in the mold set 40 with the outlet made of the second through hole 17 and the discharge passage 402 being opened. 401 itself is injected into the communication space 14 of the thermoplastic sole 10 through the opening of the inner peripheral surface of the injection passage 401 and the first through hole 16 to soften the sole 10 and then to the inner wall of the mold set 40. Expand while opposing (sole expansion process). Then, the first through hole 16 and the second through hole 17 are sealed via the injection passage 401 and the discharge passage 402 in the mold set 40 (through hole sealing step), and then molded from the mold set 40. Remove shoes (shoe removal process). Finally, the excess portion (C in FIG. 4) of the sole 10 that protrudes from the mold and adheres to the thin film protective layer 23 during the molding process is cut, and then the peripheral surface 13 of the sole 10 together with the thin film protective layer 23. Remove from. Note that the number of passage holes in the sole of the present invention and the number of passages in the mold set may be only one (that is, one heat medium entrance / exit), but the communication space 14 of the sole 10 is exchanged through the heat medium. In this embodiment, the first through hole 16 and the injection passage 401 as an air inlet and the second passage as an air outlet are respectively provided in order to keep supplying heat to the inside and maintaining a predetermined temperature. The hole 17 and the discharge passage 402 are provided, the pressure in the communication space 14 is controlled to be constant, and the sole expansion process is performed smoothly. At least one (in the present embodiment, the second through hole 17) is made smaller than the diameters of the first through hole 16 and the injection passage 401 as an inlet.

このように作製された靴は、熱可塑性ソール１０の連通空間に注入する熱媒体によってソール１０を軟化してから金型４０の内壁に対抗しながら拡張させることにより、ソール１０の表面を金型セット４０の内壁面とぴったり接触させるので、その外周面の前記金型の内壁面にエンボスされて出てくる模様を浮出しがはっきりさせるだけでなく、ソール１０とアッパー２０との間の結合力をも従来より遥かに向上させることができる。   In the shoe thus manufactured, the sole 10 is softened by a heat medium injected into the communication space of the thermoplastic sole 10 and then expanded while facing the inner wall of the mold 40, whereby the surface of the sole 10 is molded. Since it is brought into close contact with the inner wall surface of the set 40, not only is the embossed pattern appearing on the inner wall surface of the mold on the outer peripheral surface, but also the coupling between the sole 10 and the upper 20 is made clear. The power can be improved much more than before.

次に、本発明に係る靴の製造方法の第２の実施形態を説明する。本実施形態の前記第１の実施形態と異なる点は、図６に示すように、前記ソール用意工程においては、熱可塑性ソールとして上下両面からそれぞれ対向に突出してから互いに連接してなり、且つ上下両端が開口している支持部材としての複数の中空体６１が形成してあるソール６０を用意することにある。なお、前記支持部材の強度を強化するために、中空体６１内に補強材６２を入れることができる。補強材６２は、ＥＶＡ，ＰＵ，ＴＰＵ，ＰＶＣからなる群れより選ばれたものからなる。そして、図７に示すように、この実施形態はソール６０の下面に耐摩耗層６３を付け加えるので、前記３つの用意工程と共に耐摩耗層用意工程を行い、また、金型セット用意工程においては、耐摩耗層６３の付け加えに応じるキャビティーを有するものを準備しなければならない。もちろん、金型セット設置工程においても、図７のように、耐摩耗層６３を正当な箇所に入れなければならない。このように、前記第１の実施形態と同様に、その外周面の金型４０の内壁面にエンボスされて出てくる模様を浮出しがはっきりさせるのみならず、ソール６０とアッパー２０との間の結合力をも従来より遥かに向上させることができる。なお、本実施形態においては、前記第１の実施形態と同じ部分は、同一の符号を添付してその説明を省略する。   Next, a second embodiment of the shoe manufacturing method according to the present invention will be described. As shown in FIG. 6, the present embodiment is different from the first embodiment in that in the sole preparation process, the thermoplastic sole projects from both the upper and lower surfaces to face each other and is connected to each other. The object is to prepare a sole 60 in which a plurality of hollow bodies 61 are formed as support members having both ends open. In addition, in order to reinforce the strength of the support member, a reinforcing material 62 can be placed in the hollow body 61. The reinforcing material 62 is made of a material selected from the group consisting of EVA, PU, TPU, and PVC. And as shown in FIG. 7, since this embodiment adds the abrasion-resistant layer 63 to the lower surface of the sole 60, the abrasion-resistant layer preparation step is performed together with the three preparation steps, and in the mold set preparation step, Those having a cavity corresponding to the addition of the wear-resistant layer 63 must be prepared. Of course, also in the mold set installation step, the wear-resistant layer 63 must be put in a proper place as shown in FIG. As described above, as in the first embodiment, the embossing of the pattern embossed on the inner wall surface of the mold 40 on the outer peripheral surface not only becomes clear but also the sole 60 and the upper 20 The bonding force between them can be improved much more than before. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

そして、図８に示すのは、本発明の第３の実施形態である。本実施形態において、前記第１の実施形態と異なる点は、前記ソール用意工程と前記ソール用意工程から前記金型セット設置工程にかけての間に更に、膨張手段挿入工程を備えることにある。前記ソール工程においては、熱可塑性ソールとしてその上面に複数の窪みと該複数の窪みを連通させている複数の開渠とからなった連通空間としての窪み模様７１が形成してあるソール７０を用意する。前記膨張手段挿入工程は、窪み模様７１内に、熱可塑性ソール７０の通孔と対応する位置に注入孔（図示せず）が付設してあり、該注入孔を経由して熱媒体５０が注入されると窪み模様７１とほぼ同じ模様に膨張できる膨張手段８０を入れるように行われる。それに応じて、前記ソール拡張工程においては、熱媒体５０は注入孔を経由して前記連通空間内における膨張手段８０内に注入し、膨張手段８０の膨張によってソール７０を金型４０の内壁に対抗しながら拡張させる。このように、前記第１の実施形態と同様に、その外周面の金型４０の内壁面にエンボスされて出てくる模様を浮出しがはっきりさせるのみならず、ソール７０とアッパー２０との間の結合力をも従来より遥かに向上させることができる。なお、本実施形態においては、前記第１の実施形態と同じ部分は、同一の符号を添付してその説明を省略する。   FIG. 8 shows a third embodiment of the present invention. The present embodiment is different from the first embodiment in that it further includes an expansion means insertion step between the sole preparation step and the sole preparation step to the mold set installation step. In the sole step, a sole 70 having a recess pattern 71 as a communication space formed of a plurality of depressions and a plurality of ridges communicating the plurality of depressions on the upper surface is prepared as a thermoplastic sole. To do. In the expansion means inserting step, an injection hole (not shown) is provided in the depression pattern 71 at a position corresponding to the through hole of the thermoplastic sole 70, and the heat medium 50 is injected through the injection hole. If it does, it will be performed so that the expansion | swelling means 80 which can be expand | swelled in the substantially same pattern as the hollow pattern 71 is put. Accordingly, in the sole expansion step, the heat medium 50 is injected into the expansion means 80 in the communication space via the injection hole, and the sole 70 is opposed to the inner wall of the mold 40 by the expansion of the expansion means 80. While expanding. As described above, as in the first embodiment, the embossing of the pattern embossed on the inner wall surface of the mold 40 on the outer peripheral surface is not only clarified, but the sole 70 and the upper 20 The bonding force between them can be improved much more than before. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

上記のように、本発明は、アッパーとソールとの間の結合力が向上するのみならず、ソールに模様の浮出しも良い靴の製造方法を提供することができる。   As described above, the present invention can provide a method for manufacturing a shoe that not only improves the bonding force between the upper and the sole, but also allows the pattern to be raised on the sole.

本発明に係る靴の製造方法の第１の実施形態を示すフローチャートである。It is a flowchart which shows 1st Embodiment of the manufacturing method of the shoe which concerns on this invention. 前記第１の実施形態を示す説明図である。It is explanatory drawing which shows the said 1st Embodiment. 前記第１の実施形態における熱可塑性ソールを示す斜視透視図である。It is a perspective perspective view which shows the thermoplastic sole in the said 1st Embodiment. 前記第１の実施形態における熱媒体がソールの連通空間に注入されてソールを拡張させる状態を示す一部拡大図である。It is a partially expanded view which shows the state which the heat medium in the said 1st Embodiment is inject | poured into the communication space of a sole, and expands a sole. 前記第１の実施形態における熱媒体がソールの連通空間に注入されてソールを拡張させた状態を示す断面図である。It is sectional drawing which shows the state which the heat medium in the said 1st Embodiment was inject | poured into the communicating space of the sole, and expanded the sole. 本発明に係る靴の製造方法の第２の実施形態における熱可塑性ソールを示す斜視透視図である。It is a perspective see-through | perspective view which shows the thermoplastic sole in 2nd Embodiment of the manufacturing method of the shoe which concerns on this invention. 前記第２の実施形態における熱媒体がソールの連通空間に注入された状態を示す断面図である。It is sectional drawing which shows the state in which the heat medium in the said 2nd Embodiment was inject | poured into the communicating space of the sole. 本発明に係る靴の製造方法の第３の実施形態における熱媒体がソールの連通空間に注入された状態を示す断面図である。It is sectional drawing which shows the state in which the heat medium in 3rd Embodiment of the manufacturing method of the shoe which concerns on this invention was inject | poured into the communicating space of the sole.

符号の説明Explanation of symbols

１０、６０、７０ 熱可塑性ソール
１１ 上面
１２、２１ 下面
１３、２２ 周面
１３１ 上縁部
１４ 連通空間
１４１ 小空間
１５ 連続壁
１５１ 通孔
１６ 第１の通孔
１７ 第２の通孔
２０ アッパー
２３ 薄膜保護層
３０ 靴型
４０ 金型セット
４０１ 注入通路
４０２ 排出通路
４１ 上型
４２ 下型
４３ 側型
５０ 熱媒体
６１ 中空体
６２ 補強材
６３ 耐摩耗層
７１ 窪み模様
８０ 膨張手段 10, 60, 70 Thermoplastic sole 11 Upper surface 12, 21 Lower surface 13, 22 Peripheral surface 131 Upper edge portion 14 Communication space 141 Small space 15 Continuous wall 151 Through hole 16 First through hole 17 Second through hole 20 Upper 23 Thin film protective layer 30 Shoe mold 40 Mold set 401 Injection passage 402 Discharge passage 41 Upper die 42 Lower die 43 Side die 50 Heat medium 61 Hollow body 62 Reinforcement material 63 Wear resistant layer 71 Dimple pattern 80 Expansion means

Claims (9)

上下両面と該上下両面間の周縁に沿いながら上へ延伸している周面と上下周３面内に形成されている連通空間を有し、且つ、該周面に該連通空間と連通している通孔が形成してある熱可塑性ソールを用意するソール用意工程と、
下面と該下面の周縁に沿いながら上へ延伸している周面とを有するアッパーを用意するアッパー用意工程と、
組合わせにより靴を成型するためのキャビティーを形成することができ、且つその胴体内にそれぞれその内外両周面に開口している注入通路が開設してあり、前記内周面の開口が前記熱可塑性ソールの通孔と対応する位置にある金型セットを用意する金型セット用意工程と、
前記アッパーの下面に接着剤を塗布する接着剤塗布工程と、
前記アッパーを前記熱可塑性ソールの上方に配置して前記ソールの周面の上縁部を前記アッパーの周面の下縁部に外から覆わせると同時に、前記通孔と前記内周面の開口とを合わせるように前記アッパーと前記ソールとを金型セットのキャビティー内に入れる金型セット設置工程と、
熱媒体を前記金型セットの外周面開口，注入通路，内周面開口，そして前記通孔を経由して前記熱可塑性ソールの連通空間に注入して前記ソールを軟化してから金型セットの内壁に対抗しながら拡張させるソール拡張工程と、
前記金型セットから成型した靴を取り出す靴取出し工程とを備えることを特徴とする靴の製造方法。 The upper and lower surfaces and a peripheral surface extending along the periphery between the upper and lower surfaces and a communication space formed in the upper and lower peripheral three surfaces, and the peripheral surface communicates with the communication space A sole preparing step of preparing a thermoplastic sole having through holes formed therein;
An upper preparation step of preparing an upper having a lower surface and a peripheral surface extending upward along the periphery of the lower surface;
A cavity for molding a shoe can be formed by a combination, and an injection passage is opened in the inner and outer peripheral surfaces of the body, and the opening of the inner peripheral surface is A mold set preparation step of preparing a mold set at a position corresponding to the through hole of the thermoplastic sole;
An adhesive application step of applying an adhesive to the lower surface of the upper;
The upper is disposed above the thermoplastic sole so that the upper edge of the peripheral surface of the sole is covered with the lower edge of the peripheral surface of the upper, and at the same time, the opening of the through hole and the inner peripheral surface A mold set installation step for putting the upper and the sole into a cavity of the mold set so as to match with
A heat medium is injected into the communication space of the thermoplastic sole through the outer peripheral surface opening, the injection passage, the inner peripheral surface opening, and the through hole of the mold set, and the sole is softened, and then the mold set Sole expansion process that expands against the inner wall,
A method for manufacturing shoes, comprising: a shoe removing step of taking out shoes molded from the mold set. 前記ソール拡張工程と前記靴取出し工程との間に、更に、前記金型セットの外周面開口、注入通路及び内周面開口を経由して前記通孔を密封する通孔密封工程とを備えることを特徴とする請求項１に記載の靴の製造方法。   A through hole sealing step for sealing the through hole through the outer peripheral surface opening, the injection passage and the inner peripheral surface opening of the mold set is further provided between the sole expanding step and the shoe removing step. The method for manufacturing a shoe according to claim 1. 前記ソール用意工程においては、前記熱可塑性ソールとしてその上面に複数の窪みと該複数の窪みを連通させている複数の開渠とからなった前記連通空間としての窪み模様が形成してあるソールを用意し、
また、前記ソール用意工程から前記金型セット設置工程にかけての間に、更に、前記窪み模様内に、前記熱可塑性ソールの通孔と対応する位置に注入孔が付設してあり、該注入孔を経由して前記熱媒体が注入されると該窪み模様とほぼ同じ模様に膨張できる膨張手段を入れる膨張手段挿入工程を備え、
それに応じて、前記ソール拡張工程においては、前記熱媒体は前記注入孔を経由して前記連通空間内における前記膨張手段内に注入し、該膨張手段の膨張によって前記ソールを前記金型の内壁に対抗しながら拡張させることを特徴とする請求項１に記載の靴の製造方法。 In the sole preparation step, a sole having a depression pattern as the communication space formed of a plurality of depressions and a plurality of ridges communicating the plurality of depressions on the upper surface is formed as the thermoplastic sole. Prepare
Further, during the period from the sole preparation step to the mold set installation step, an injection hole is further provided in the recess pattern at a position corresponding to the through hole of the thermoplastic sole, and the injection hole is An expansion means insertion step for inserting expansion means capable of expanding into a pattern substantially the same as the hollow pattern when the heat medium is injected via,
Accordingly, in the sole expansion step, the heat medium is injected into the expansion means in the communication space via the injection hole, and the sole is applied to the inner wall of the mold by the expansion of the expansion means. The shoe manufacturing method according to claim 1, wherein the shoe is expanded while facing. 前記ソール用意工程においては、前記熱可塑性ソールとして前記上下周３面に囲まれてなる空間内を複数の前記上下両面間に延伸してなる支持部材により前記連通空間がなるように仕切ったソールを用意することを特徴とする請求項１に記載の靴の製造方法。   In the sole preparing step, a sole that is partitioned so that the communication space is formed by a support member that extends between a plurality of upper and lower surfaces in a space surrounded by the three upper and lower circumferential surfaces as the thermoplastic sole. The shoe manufacturing method according to claim 1, wherein the shoe is prepared. 前記ソール用意工程においては、前記熱可塑性ソールとして前記上下周３面に囲まれてなる空間内を複数の小空間に仕切った互いに連続している前記支持部材としての通孔付き連続壁が形成してあるソールを用意することを特徴とする請求項４に記載の靴の製造方法。   In the sole preparation step, as the thermoplastic sole, a continuous wall with a through hole is formed as the support member that is continuous with each other and divides the space surrounded by the three upper and lower circumferential surfaces into a plurality of small spaces. A shoe manufacturing method according to claim 4, wherein a sole is provided. 前記ソール用意工程においては、前記熱可塑性ソールとして前記上下両面からそれぞれ対向に突出してから互いに連接してなり、且つ上下両端が開口している前記支持部材としての複数の中空体が形成してあるソールを用意することを特徴とする請求項４に記載の靴の製造方法。   In the sole preparation step, a plurality of hollow bodies are formed as the supporting members that are connected to each other after projecting oppositely from the upper and lower surfaces as the thermoplastic sole, and are open at both upper and lower ends. The shoe manufacturing method according to claim 4, wherein a sole is prepared. 前記ソール用意工程から前記金型セット設置工程にかけての間に、前記中空体内に補強材を入れる補強材充填工程を更に備えることを特徴とする請求項６に記載の靴の製造方法。   The shoe manufacturing method according to claim 6, further comprising a reinforcing material filling step of inserting a reinforcing material into the hollow body between the sole preparation step and the mold set installation step. 前記アッパー用意工程から前記金型セット設置工程にかけての間に、前記アッパーの周面の前記ソールの周面に覆われる部分の直上に、条状の薄膜保護層を貼付することを特徴とする請求項１〜７のいずれか一項に記載の靴の製造方法。   The strip-shaped thin film protective layer is pasted immediately above a portion of the peripheral surface of the upper covered with the peripheral surface of the sole during the upper preparation step and the mold set installation step. The manufacturing method of the shoes as described in any one of claim | item 1 -7. 前記ソール拡張工程においては、前記熱媒体として熱風を使用することを特徴とする請求項１〜７のいずれか一項に記載の靴の製造方法。   The shoe manufacturing method according to any one of claims 1 to 7, wherein hot air is used as the heat medium in the sole expansion step.
JP2003382520A 2003-11-12 2003-11-12 Manufacturing method for shoe Ceased JP2005143637A (en)

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