JPH02270519A - Forming method - Google Patents
Forming methodInfo
- Publication number
- JPH02270519A JPH02270519A JP1092041A JP9204189A JPH02270519A JP H02270519 A JPH02270519 A JP H02270519A JP 1092041 A JP1092041 A JP 1092041A JP 9204189 A JP9204189 A JP 9204189A JP H02270519 A JPH02270519 A JP H02270519A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- shape
- preform
- synthetic resin
- volume
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000057 synthetic resin Substances 0.000 claims abstract description 38
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 38
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000004848 polyfunctional curative Substances 0.000 abstract 1
- 239000011257 shell material Substances 0.000 description 16
- 239000004033 plastic Substances 0.000 description 10
- 229920003023 plastic Polymers 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 239000004604 Blowing Agent Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000005187 foaming Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000636 poly(norbornene) polymer Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003509 tertiary alcohols Chemical class 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 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)
- Moulding By Coating Moulds (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、形状記憶合成樹脂が、温度によって、記憶し
た形状のゴム質および任意の形状に固定されたプラスチ
ック質に可逆的に変化することを利用した成形法に関す
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention is characterized in that a shape memory synthetic resin reversibly changes into a rubber material having a memorized shape and a plastic material fixed to an arbitrary shape depending on the temperature. Concerning a molding method using
近時、各種の形状記憶合成樹脂が開発されており、例え
ばトランスポリイソプレン、ポリノルボルネン、ポリウ
レタン、ポリスチレンと結晶化ポリブタジェンのブロッ
ク共重合物等があげられる。Recently, various shape memory synthetic resins have been developed, such as trans polyisoprene, polynorbornene, polyurethane, and block copolymers of polystyrene and crystallized polybutadiene.
これらは、内蔵する結晶部分の作用、架橋点の作用等に
よって、それぞれガラス転移点（以下Ｔｇとｂう）の温
度以上ではゴム質、Ｔ ｇ ｊｍｓ度以下ではプラスチ
ック質と可逆的に変化し、プラスチック質では付与され
た形状に固定さ−れ、ゴム質においては記憶した形状に
復元することが知られている。Due to the action of the built-in crystal parts, the action of crosslinking points, etc., these materials reversibly change into rubbery properties at temperatures above the glass transition point (hereinafter referred to as Tg), and plastic properties below Tgjms, respectively. It is known that plastic materials are fixed in the given shape, while rubber materials are known to restore to the memorized shape.
しかし、上記形状記憶合成樹脂はいずれもゴム質化七で
記憶した形状に復元する際、加熱した状態ではヤング率
が相当下がり、自重によって曲がってしまうものであり
、また非圧縮性のため、体積変化を伴う用途には使用出
来ず、その用途は曲げることに限られていた。However, when the above-mentioned shape memory synthetic resins are restored to their memorized shape by rubberization, their Young's modulus decreases considerably when they are heated, and they bend under their own weight, and because they are incompressible, their volumetric It could not be used for purposes that involved change, and its use was limited to bending.
本発明者らは、上記形状記憶合成樹脂によって体積変化
を伴う形状を記憶させ、型による成形法を開発すべ（鋭
意研究を行った結果、樹脂発泡操作により、無数の微小
気泡を成形体内に分散させる等この樹脂に気泡を含有さ
せると、ゴム質とした場合、見掛は比重が小さくなるこ
とにより樹脂が重量によって変形することがな（記憶し
た形状となり、これを加熱圧縮して体積を小さくして冷
却するとプラスチック化して圧縮された形状が保持され
ることを知見した。The inventors of the present invention have developed a molding method using a mold by using the above-mentioned shape-memory synthetic resin to memorize a shape accompanied by a volume change. When this resin contains air bubbles, for example, when it is made into a rubbery substance, the apparent specific gravity becomes smaller so that the resin does not deform under weight (it becomes a memorized shape, which is heated and compressed to reduce its volume). It was discovered that when it is cooled, it turns into plastic and retains its compressed shape.
本発明は上記の知見に基づいてなされたもので、形状記
憶合成樹脂を用い容易に目的とする成形体が得られる成
形法を提供することを目的とする。The present invention was made based on the above-mentioned findings, and an object of the present invention is to provide a molding method by which a desired molded article can be easily obtained using a shape-memory synthetic resin.
上記の目的を達成するため、本発明の成形法においては
、樹脂発泡操作により無数の微小気泡を成形体の内に分
散させる等、合成樹脂発泡体のように気泡を含有した形
状記憶合成樹脂を用いて、目的とする成形体より大きい
予備成形体をっ（す、この予備成形体を加熱圧縮して小
さくした後、冷却固定し、上記目的とする成形体を成形
する雌型状の成形型内に入れ、加熱膨張せしめて上記成
形型内面に密着させ、冷却固定した後離型する、又は樹
脂発泡操作により無数の微小気泡を成形体内に分散させ
る等合成樹脂発泡体のように気泡を含有した形状記憶合
成樹脂を用いて、目的とする成形体より小さい中空部を
有する予備成形体をつくり、この予備成形体を加熱加圧
・して該中空部を大きく℃た後、冷却固定し、上記目的
とする成形体を成形する雄型状の成形型を該中空部内に
入れ、加熱膨張せしめて上記成形型面に゛密着させ、冷
却固定した後離型する方法である。In order to achieve the above object, the molding method of the present invention uses a shape-memory synthetic resin containing air bubbles, such as a synthetic resin foam, by dispersing countless microbubbles into the molded object through a resin foaming operation. A female-shaped mold is used to make a preform larger than the desired molded object.This preform is heated and compressed to make it smaller, then cooled and fixed, and a female-shaped mold is used to form the desired molded object. It contains air bubbles like a synthetic resin foam, for example, by heating and expanding it, making it adhere to the inner surface of the mold, cooling and fixing it, and then releasing it from the mold, or by dispersing countless microbubbles inside the molded object by a resin foaming operation, etc. A preformed body having a hollow part smaller than the desired molded body is made using the shape memory synthetic resin, and this preformed body is heated and pressurized to raise the hollow part to a large degree, and then cooled and fixed. In this method, a male-shaped mold for forming the desired molded article is placed in the hollow portion, heated and expanded to bring it into close contact with the surface of the mold, cooled and fixed, and then released from the mold.
更に、気泡を含有した形状記憶合成樹脂を用いて、目的
とする雌型の成形体の容積より小さい容積を有する雌型
の予備成形体をつくり、この予備成形体を加熱加圧して
容積を拡大した後、冷却固定し、上記目的とする成形体
を成形するための雄型の型を該予備成形体内に入れ、該
予備成形体を加熱膨張せしめて上記型面に密着させζ冷
却し固定した後離型する方法であり、また、外殻構造体
の内周面に沿って、気泡を含有した形状記憶合成樹脂を
用いて、目的とする層状成形体の中空部の容積より小さ
い容積の中空部を有する層状予備成形体をつくり、この
層状予備成形体内に、膨張性中子挿入して、層状予備成
形体を外殻構造体の内周面に加熱加圧して層の厚さを薄
くし、中空部容積を拡げた後、冷却固定し、上記目的と
する成形体を形成するための雄型の型を該予備成形体内
の中空部に入れ該予備成形体を加熱膨張せしめて層の厚
さを厚（し、上記型外周に密着させ、冷却し固定した後
離型する方法であり、その実施態様として、外殻構造体
の内周面に沿って、気泡を含有した形状記憶合成樹脂及
び非形状記憶樹脂を用いて、目的とする層状成形体の中
空部の容積より小さい容積の中空部を有する一部分が形
状記憶合成樹脂から成り、他の部分が非形状記憶合成樹
脂から成る層状予備成形体をつくり、この層状予備成形
体内に膨張性中子を挿入して、層状予備成形体を外殻構
造体の内周面に加熱加圧して層の厚さを薄くし、中空部
容積を拡げた後、冷却して、形状記憶合成樹脂の部分を
固定し、上記目的とする成形体を成形するための雄型の
型を該予備成形体内の中空部に入れ、該予備成形体の形
状記憶合成樹脂部分を加熱膨張せしめて層の厚さを厚く
し、上記型外周面に密着させ、冷却し固定した後離型す
る方法である。Furthermore, using a shape memory synthetic resin containing air bubbles, a female preformed body with a volume smaller than the volume of the desired female molded body is created, and this preformed body is heated and pressurized to expand its volume. After that, it was cooled and fixed, and a male mold for molding the desired molded body was put into the preformed body, and the preformed body was heated and expanded so that it came into close contact with the mold surface, and then it was cooled and fixed. This is a method of post-mold release, and also uses a shape memory synthetic resin containing air bubbles along the inner peripheral surface of the outer shell structure to create a hollow with a volume smaller than the volume of the hollow of the desired layered molded product. An expandable core is inserted into the layered preform, and the layered preform is heated and pressed against the inner peripheral surface of the outer shell structure to reduce the thickness of the layer. After expanding the volume of the hollow part, the preform is cooled and fixed, and a male mold for forming the desired molded body is placed in the hollow part of the preform, and the preform is heated and expanded to increase the layer thickness. This is a method in which a shape memory synthetic resin containing air bubbles is attached to the outer circumference of the mold, cooled and fixed, and then released from the mold. and non-shape-memory resin to create a layered preparatory material having a hollow portion with a volume smaller than the volume of the hollow portion of the desired layered molded article, in which a portion is made of shape-memory synthetic resin and the other portion is made of non-shape-memory synthetic resin. A molded body is made, an expandable core is inserted into the layered preformed body, and the layered preformed body is heated and pressed against the inner peripheral surface of the outer shell structure to reduce the thickness of the layer and reduce the volume of the hollow part. After spreading, it is cooled to fix the shape memory synthetic resin part, and a male mold for molding the desired molded body is placed in the hollow part of the preformed body, and the shape of the preformed body is adjusted. In this method, the memory synthetic resin portion is heated and expanded to increase the thickness of the layer, brought into close contact with the outer peripheral surface of the mold, cooled and fixed, and then released from the mold.
本発明は上記の構成となっているので、加熱圧縮して、
冷却固定された気泡を含有したプラスチック質が型内で
加熱され、記憶しているもとの形状に復元するが、その
際合成樹脂は気泡を含有しており見掛は比重が小さくな
っているので自重で変形することがない。特に気泡が独
立気泡の場合には、その反撥力も加わって速やかに膨張
する。Since the present invention has the above-mentioned configuration, it is heated and compressed,
The plastic material containing air bubbles that has been cooled and fixed is heated in the mold and restored to its original memorized shape, but at this time, the synthetic resin contains air bubbles and its apparent specific gravity is reduced. Therefore, it will not deform under its own weight. In particular, when the bubbles are closed cells, their repulsive force is added and they expand rapidly.
第１図（ａ）（ｂ）（ｃ）（ｄ）は本発明の成形法の原
理的説明図で、第１図（ａ）は気泡ｌを含有する形状記
憶合成樹脂２からなる直方体で、樹脂２はこの形状を記
憶している。FIGS. 1(a), (b), (c), and (d) are explanatory diagrams of the principle of the molding method of the present invention. FIG. 1(a) shows a rectangular parallelepiped made of a shape memory synthetic resin 2 containing air bubbles 1. The resin 2 remembers this shape.
上記気泡を含有した樹脂よりなる直方体をつくるには、
形状記憶合成樹脂（例えばウレタンの場合ポリオール１
００部）に発泡剤（アゾビスブチルジニトリル）、およ
び硬化剤（インシアネート）をアゾビスブチルジニトリ
ル１０部、インシアネート３０部を加西て、さらに必要
に応じて触媒、溶剤等を加えて、樹脂液をつくり、直方
体の型に流し込み発泡させ硬化させることによって第１
図（ａ）の気泡を含有した形状記憶合成樹脂（熱可塑性
ポリウレタンニラストアー）が得られる。To make a rectangular parallelepiped made of resin containing bubbles,
Shape memory synthetic resin (for example, polyol 1 in the case of urethane)
Add a blowing agent (azobisbutyldinitrile) and a curing agent (incyanate) to 00 parts), add 10 parts of azobisbutyldinitrile and 30 parts of incyanate, and further add a catalyst, solvent, etc. as necessary. , by making a resin liquid, pouring it into a rectangular parallelepiped mold, foaming it, and hardening it.
A shape memory synthetic resin (thermoplastic polyurethane nylon store) containing air bubbles as shown in Figure (a) is obtained.
上記発泡剤としては、例えば水、有機物系発泡剤（例え
ば、３級アルコール、アゾビスブチルジニトリル）、無
機物系発泡剤（例えばホウ酸）、低沸点のハロゲン化ア
ルカン（例えばトリクロルモノフルオルメタン）等があ
げられ、また硬化剤としては、インシアネート（例えば
ＭＤＩ、ＴＤＩ）があげられる。Examples of the blowing agent include water, organic blowing agents (e.g., tertiary alcohol, azobisbutyldinitrile), inorganic blowing agents (e.g., boric acid), and low-boiling halogenated alkanes (e.g., trichloromonofluoromethane). ), and examples of the curing agent include incyanate (eg, MDI, TDI).
上記の形状記憶合成樹脂に形状で記憶させるための基本
的操作は次の如（される。The basic operation for making the shape memory synthetic resin memorize the shape is as follows.
上記無数の微小気泡を含有する直方体の樹脂２（第１図
（ａ））を準備する。A rectangular parallelepiped resin 2 (FIG. 1(a)) containing countless microbubbles is prepared.
この直方体の樹脂をＴｇ温度以上瞬加熱して、外力を加
えると、第１図（ｂ）のように変形する。When this rectangular parallelepiped resin is instantaneously heated above the Tg temperature and an external force is applied, it deforms as shown in FIG. 1(b).
この変形した状態で、Ｔｇの温度以下に冷却するとプラ
スチック化して、第１図（Ｃ）に示すように変形した状
態を保持して固定される。When this deformed state is cooled to a temperature below Tg, it becomes plastic and is fixed while maintaining the deformed state as shown in FIG. 1(C).
これを、Ｔｇの温度以上とすると、ゴム化するとともに
、第１図（ｄ）に示すように、記憶している第１図（ａ
）の形状に復元する。When this is heated to a temperature higher than Tg, it turns into rubber, and as shown in FIG.
).
こｂ成形品は、気泡が存在するため見掛比重が小さく、
樹脂が自重により変形することがない。This b molded product has a small apparent specific gravity due to the presence of air bubbles.
The resin does not deform due to its own weight.
この際、上記樹脂は、気泡の形態を独立気泡によって形
成してお（と、第１図（ｂ）のように外力によって変形
される場合の抗力は高いが、復元させる場合には、樹脂
の形状記憶による復元力と、気泡の反撥力とが作用、速
やかにもとの形状となる。At this time, the resin has a closed cell shape (as shown in Fig. 1(b), the resistance force is high when it is deformed by an external force, but when it is restored, the resin The restoring force due to shape memory and the repulsive force of the bubbles act to quickly return to the original shape.
なお、気泡形態は必ずしも独立気泡に限られるものでな
く、連続気泡を含有する樹脂は、初期の形状を圧縮する
場合の変形抗力が少ない点で別の有利点がある。また加
熱冷却時に高温空気又は低温空気を流通させる場合も有
利である。Note that the cell form is not necessarily limited to closed cells, and resins containing open cells have another advantage in that there is less deformation resistance when compressing the initial shape. It is also advantageous to circulate high-temperature air or low-temperature air during heating and cooling.
上記の作用は、種々な方面に利用可能である。The above effect can be used in various fields.
実施例１
第２図ないし第６図は、スキー靴の硬質プラスチック殻
材の内面に添設する内貼り方式のインナーブーツの型取
りにこの発明を実施した方法を示す説明図で、図中符号
３は成形時に外殻構造体として機能するスキー靴のシェ
ルである。シェル３内に第２図に示すように膨張及び収
縮自在で、かつ加熱及び冷却が出来る足形より小さい中
子４を挿入し、シェル３と中子４の間に、硬化剤９発泡
剤、形状記憶合成樹脂未硬化物よりなる樹脂液２ａを注
入し、硬化させる。これにより気泡を含有する層状の予
備成形体が得られる。Embodiment 1 FIGS. 2 to 6 are explanatory diagrams showing a method of implementing the present invention for molding an inner boot of the inner sticking method attached to the inner surface of a hard plastic shell material of a ski boot. 3 is the shell of the ski boot which functions as an outer shell structure during molding. As shown in FIG. 2, a core 4 smaller than a foot shape, which can expand and contract freely and can be heated and cooled, is inserted into the shell 3, and between the shell 3 and the core 4, a hardening agent 9, a foaming agent, and a shape A resin liquid 2a made of an uncured synthetic memory resin is injected and cured. As a result, a layered preform containing bubbles is obtained.
次いで、第３図に示すように、中子４に高温流体を圧入
することにより中子４を膨張させ気泡を含有した樹脂を
圧縮した後Ｔｇ温度以下に冷却すると、樹脂は圧縮され
た状態で固定され、中子４を除去すると、その圧縮した
形状が保持され、インナーブーツ５が形成される。Next, as shown in FIG. 3, the core 4 is expanded by injecting high-temperature fluid into the core 4, and the resin containing bubbles is compressed and then cooled to below the Tg temperature, so that the resin remains in the compressed state. When the inner boot 5 is fixed and the core 4 is removed, the compressed shape is maintained and the inner boot 5 is formed.
目的とする形状のインナーブーツを求める人は、第４図
に示すように、離型剤又は離型膜を付した足（または足
型）６を圧縮された形状が保持されたインナーブーツ内
に挿入する。次いでインナーブーツをＴｇ温度以上に加
熱すると、インナーブーツ５は、第５図に示すように記
憶している形状に復元しようとして膨張し、足６に密着
する。この状態でＴｇ温度以下に冷却した後、足６を抜
（と、第６図に示すように特定の形状を求める者の足形
にフィツトしたインナーブーツ５゛が得られる。As shown in Fig. 4, a person who wants an inner boot with a desired shape inserts a foot (or last) 6 coated with a release agent or a release film into an inner boot that maintains its compressed shape. insert. Next, when the inner boot is heated to a temperature above Tg, the inner boot 5 expands in an attempt to restore the memorized shape as shown in FIG. 5, and comes into close contact with the foot 6. After cooling in this state to a temperature below Tg, the feet 6 are removed (as shown in FIG. 6), an inner boot 5 that fits the shape of the foot of a person seeking a specific shape is obtained.
実施例２
第７図ないし第１１図は、スキー靴の硬質プラスチック
殻材の内面に添設する内貼り方式のインナーブーツの型
取りにこの発明を実施した他の方法を示す説明図で、図
中符号１３は成形時に外殻構造体として機能するスキー
靴のシェルである。Embodiment 2 FIGS. 7 to 11 are explanatory diagrams showing another method in which the present invention is applied to the molding of inner boots attached to the inner surface of the hard plastic shell material of ski boots. Reference numeral 13 indicates the shell of the ski boot, which functions as an outer shell structure during molding.
シェル１３内に、第７図に示すように膨張及び収縮自在
で、かつ加熱及び冷却が出来る足より小さい中子１４を
入れ、シェル１３のソール部分１３ａと中子１４の間に
硬化剤１発泡剤、形状記憶合成樹脂未硬化物よりなる樹
脂液１２ａを注入し硬化させる。これにより気泡を含有
する層状の予備成形体がシェルのソール部分１３ａの内
面と中子との間に得られる。次いでソール部分を除くシ
ェルの他の一部分１３ｂと中子との間に非形状記憶合成
樹脂から成る発泡樹脂層状体を挿入し、シェル内面に添
設する。As shown in FIG. 7, a core 14 smaller than a foot is inserted into the shell 13 and is capable of expanding and contracting as well as being heated and cooled, as shown in FIG. A resin liquid 12a made of an uncured shape memory synthetic resin is injected and cured. A layered preform containing air bubbles is thereby obtained between the inner surface of the sole portion 13a of the shell and the core. Next, a foamed resin layered body made of a non-shape memory synthetic resin is inserted between the other part 13b of the shell excluding the sole part and the core, and attached to the inner surface of the shell.
次いで、第８図に示すように中子１４に高温流体を圧入
することにより中子１４を膨張させ気泡を含有した樹脂
を圧縮した後Ｔｇ温度以下に冷却すると、形状記憶合成
樹脂の部分は圧縮された状態で固定され、中子１４を除
去すると、そのソール部分が圧縮した形状が保持された
インナーブーツ１５が形成される。その際、非形状記憶
合成樹脂の部分も同時に圧縮されるが、冷却しても中子
を除去すると元の形状に回復してしまう。Next, as shown in FIG. 8, the core 14 is expanded by injecting high-temperature fluid into the core 14, the resin containing bubbles is compressed, and then cooled to below the Tg temperature, so that the shape memory synthetic resin portion is compressed. When the core 14 is removed, an inner boot 15 is formed in which the sole retains its compressed shape. At this time, the non-shape-memory synthetic resin portion is also compressed, but even after cooling, it recovers to its original shape when the core is removed.
目的とする形状のインナーブーツを求める人は、第９図
に示すように、離型剤又は離型膜を付した足１６（又は
足型）を、ソール部分１３ａのみの形状記憶合成樹脂が
圧縮固定され、ソール部分以外の他の０部分１３ｂは圧
縮された後、固定されずに厚さの形状が回復した状態の
インナーブーツ内に挿入する。次いでインナーブーツを
Ｔｇ温度以上に加熱すると、インナーブーツ１５は、第
１θ図に示すように記憶している形状に復元しようとし
て膨張し、足１６に密着する。この状態でＴｇ温度以下
に冷却した後、足１６を抜くと、第１１図に示すように
、足形状を求める者の足形にフィブトシ太インナーブー
ツ１５°が得られる。As shown in FIG. 9, a person who wants inner boots with a desired shape can attach a foot 16 (or last) to which a release agent or release film has been applied, and compress the shape memory synthetic resin only in the sole portion 13a. After being fixed, the other part 13b other than the sole part is compressed, and then inserted into the inner boot in a state where the shape of the thickness has been recovered without being fixed. Next, when the inner boot is heated to a temperature above Tg, the inner boot 15 expands in an attempt to restore the memorized shape as shown in FIG. 1θ, and comes into close contact with the foot 16. After cooling to a temperature below Tg in this state, the foot 16 is removed, and as shown in FIG. 11, a 15° thick inner boot with a fib-shaped shape is obtained for the foot shape of the person seeking the foot shape.
上記スキー靴は、足形状が異なる他人が使用する場合、
同様な操作によって、他の者の足に合わせることが出来
る。If the above ski shoes are used by someone else with a different foot shape,
You can use a similar operation to match other people's feet.
以上述べたように、本発明の成形法は、形状記憶合成樹
脂を用いることによりゴム質とプラスチック質Ｊこ可逆
的に変化し、Ｔｇ温度以上のゴム質における形状を記憶
し、Ｔｇ温度以下のプラスチック質においては圧縮した
形状が固定されるので、その状態変化を利用して、スキ
ー靴のインナーブーツ等、種々な方面に利用出来る。As described above, the molding method of the present invention uses a shape memory synthetic resin to reversibly change the rubber and plastic materials, memorizes the shape of the rubber material at temperatures above Tg, and stores the shape at temperatures below Tg. Plastics have a fixed compressed shape, so they can be used in a variety of applications, such as inner boots for ski boots, by taking advantage of changes in their state.
第１図（ａ）（ｂ）（ｃ）（ｄ）は本発明の詳細な説明
図、第２図ないし第１１図は本発明を利用した例を示す
ものでζスキ°−靴のインナーブーツの成形法の工程の
説明図である。
ｌ・・・・・・気泡、
２・・・・・・形状記憶合成樹脂、
２ａ、１２ａ・・・・・・樹脂液、
３．１３・・・・・・シェル、
１３ａ・・・・・・ソール部分、
１３ｂ・・・・・・他の部分、
４．１４・・・・・・中子、
５．１５・・・・・・インナーブーツ、５°、１５°・
・・・・・足にフイ・ノドしたインナーブー・ノ、６．
１６・・・・・・足。Figures 1 (a), (b), (c) and (d) are detailed explanatory diagrams of the present invention, and Figures 2 to 11 show examples using the present invention. FIG. 3 is an explanatory diagram of the steps of the molding method. 1...Bubble, 2...Shape memory synthetic resin, 2a, 12a...Resin liquid, 3.13...Shell, 13a...・Sole part, 13b...other parts, 4.14...core, 5.15...inner boots, 5°, 15°・
...Inner boob that throbbed on the legs, 6.
16...feet.
Claims (4)
とする成形体より大きい予備成形体をつくり、この予備
成形体を加熱圧縮して小さくした後、冷却固定し、上記
目的とする成形体を成形する型内に入れ、該予備成形体
を加熱膨張せしめて上記型内面に密着させ、冷却し固定
した後離型することを特徴とする成形法。(1) Using a shape memory synthetic resin containing bubbles, make a preform larger than the desired molded object, heat and compress this preform to make it smaller, cool and fix it, and mold it to the above purpose. A molding method characterized by placing a preform into a mold, heating and expanding the preform to bring it into close contact with the inner surface of the mold, cooling and fixing, and then releasing from the mold.
とする雌型の成形体の容積より小さい容積を有する雌型
の予備成形体をつくり、この予備成形体を加熱加圧して
容積を拡大した後、冷却固定し、上記目的とする成形体
を成形するための雄型の型を該予備成形体内に入れ、該
予備成形体を加熱膨張せしめて上記型面に密着させ、冷
却し固定した後離型することを特徴とする成形法。(2) Using a shape memory synthetic resin containing air bubbles, create a female preform with a volume smaller than the volume of the desired female mold, and heat and pressurize this preform to increase the volume. After being expanded, it is cooled and fixed, a male mold for molding the desired molded body is placed inside the preformed body, the preformed body is heated and expanded so that it comes into close contact with the mold surface, and is cooled and fixed. A molding method characterized by releasing the mold after molding.
状記憶合成樹脂を用いて、目的とする層状成形体の中空
部の容積より小さい容積の中空部を有する層状予備成形
体をつくり、この層状予備成形体内に、膨張性中子を挿
入して、層状予備成形体を外殻構造体の内周面に加熱加
圧して層の厚さを薄くし、中空部容積を拡げた後、冷却
固定し、上記目的とする成形体を形成するための雄型の
型を該予備成形体内の中空部に入れ該予備成形体を加熱
膨張せしめて層の厚さを厚くし、上記型外周に密着させ
、冷却し固定した後離型することを特徴とする成形法。(3) A layered preformed body having a hollow portion along the inner circumferential surface of the outer shell structure using a shape memory synthetic resin containing bubbles and having a volume smaller than the volume of the hollow portion of the intended layered molded product. An expandable core is inserted into this layered preform, and the layered preform is heated and pressed against the inner peripheral surface of the outer shell structure to reduce the thickness of the layer and expand the volume of the hollow part. After that, it is cooled and fixed, and a male mold for forming the desired molded body is placed in the hollow part of the preformed body, and the preformed body is heated and expanded to increase the thickness of the layer. A molding method characterized by placing the material in close contact with the outer periphery of the mold, cooling and fixing it, and then releasing it from the mold.
状記憶合成樹脂及び非形状記憶樹脂を用いて、目的とす
る層状成形体の中空部の容積より小さい容積の中空部を
有する一部分が形状記憶合成樹脂から成り、他の部分が
非形状記憶合成樹脂から成る層状予備成形体をつくり、
この層状予備成形体内に膨張性中子を挿入して、層状予
備成形体を外殼構造体内周面に加熱加圧して層の厚さを
薄くし、中空部容積を拡げた後、冷却して、形状記憶合
成樹脂の部分を固定し、上記目的とする成形体を成形す
るための雄型の型を該予備成形体内の中空部に入れ、該
予備成形体の形状記憶合成樹脂部分を加熱膨張せしめて
層の厚さを厚くし、上記型外周面に密着させ、冷却し固
定した後離型することを特徴とする成形法。(4) Along the inner circumferential surface of the outer shell structure, shape-memory synthetic resin containing bubbles and non-shape-memory resin are used to form a hollow portion with a volume smaller than the volume of the hollow portion of the target layered molded product. producing a layered preformed body in which a portion thereof is made of a shape-memory synthetic resin and another portion is made of a non-shape-memory synthetic resin;
An expandable core is inserted into the layered preform, and the layered preform is heated and pressed against the inner peripheral surface of the outer shell structure to reduce the layer thickness and expand the hollow volume, and then cooled. The shape memory synthetic resin portion is fixed, a male mold for molding the desired molded body is placed in the hollow portion of the preform, and the shape memory synthetic resin portion of the preform is heated and expanded. A molding method characterized by increasing the thickness of the layer, bringing it into close contact with the outer peripheral surface of the mold, cooling and fixing, and then releasing from the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1092041A JPH02270519A (en) | 1989-04-12 | 1989-04-12 | Forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1092041A JPH02270519A (en) | 1989-04-12 | 1989-04-12 | Forming method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11890591A Division JPH0655635A (en) | 1991-05-23 | 1991-05-23 | Molding method for filler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02270519A true JPH02270519A (en) | 1990-11-05 |
| JPH0512141B2 JPH0512141B2 (en) | 1993-02-17 |
Family
ID=14043441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1092041A Granted JPH02270519A (en) | 1989-04-12 | 1989-04-12 | Forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02270519A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655635A (en) * | 1991-05-23 | 1994-03-01 | Yamaha Corp | Molding method for filler |
| WO1996013183A1 (en) * | 1994-10-27 | 1996-05-09 | Nordica S.P.A. | Innerboot for sports shoes and method for manufacturing the same |
| EP0711515A1 (en) | 1994-11-10 | 1996-05-15 | Salomon S.A. | Internal shoe for skiboot |
| US6710766B1 (en) * | 1999-11-12 | 2004-03-23 | Sony Computer Entertainment Inc. | Manual controller |
| JP2010527295A (en) * | 2007-04-18 | 2010-08-12 | スミス アンド ネフュー ピーエルシー | Expansion molding of shape memory polymer |
| US8210561B2 (en) | 2003-11-24 | 2012-07-03 | Tyrolia Technology Gmbh | Ski boots |
| US8359773B2 (en) | 2007-02-02 | 2013-01-29 | Calzaturificio Dal Bello Srl | Series of sports shoes, such as ski boots, snowboard boots or suchlike, of different sizes, combination of two or more series and relative method of production |
| US9000066B2 (en) | 2007-04-19 | 2015-04-07 | Smith & Nephew, Inc. | Multi-modal shape memory polymers |
| US9770534B2 (en) | 2007-04-19 | 2017-09-26 | Smith & Nephew, Inc. | Graft fixation |
-
1989
- 1989-04-12 JP JP1092041A patent/JPH02270519A/en active Granted
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655635A (en) * | 1991-05-23 | 1994-03-01 | Yamaha Corp | Molding method for filler |
| WO1996013183A1 (en) * | 1994-10-27 | 1996-05-09 | Nordica S.P.A. | Innerboot for sports shoes and method for manufacturing the same |
| EP0711515A1 (en) | 1994-11-10 | 1996-05-15 | Salomon S.A. | Internal shoe for skiboot |
| US5746015A (en) * | 1994-11-10 | 1998-05-05 | Salomon S.A. | Comfort liner for ski boot |
| US5924218A (en) * | 1994-11-10 | 1999-07-20 | Salomon S. A. | Internal liner for a boot |
| US6710766B1 (en) * | 1999-11-12 | 2004-03-23 | Sony Computer Entertainment Inc. | Manual controller |
| US8210561B2 (en) | 2003-11-24 | 2012-07-03 | Tyrolia Technology Gmbh | Ski boots |
| US8359773B2 (en) | 2007-02-02 | 2013-01-29 | Calzaturificio Dal Bello Srl | Series of sports shoes, such as ski boots, snowboard boots or suchlike, of different sizes, combination of two or more series and relative method of production |
| JP2010527295A (en) * | 2007-04-18 | 2010-08-12 | スミス アンド ネフュー ピーエルシー | Expansion molding of shape memory polymer |
| US9815240B2 (en) | 2007-04-18 | 2017-11-14 | Smith & Nephew, Inc. | Expansion moulding of shape memory polymers |
| US9000066B2 (en) | 2007-04-19 | 2015-04-07 | Smith & Nephew, Inc. | Multi-modal shape memory polymers |
| US9308293B2 (en) | 2007-04-19 | 2016-04-12 | Smith & Nephew, Inc. | Multi-modal shape memory polymers |
| US9770534B2 (en) | 2007-04-19 | 2017-09-26 | Smith & Nephew, Inc. | Graft fixation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512141B2 (en) | 1993-02-17 |
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