JP2014032796A - Deformation member for sheet - Google Patents

Deformation member for sheet Download PDF

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JP2014032796A
JP2014032796A JP2012171686A JP2012171686A JP2014032796A JP 2014032796 A JP2014032796 A JP 2014032796A JP 2012171686 A JP2012171686 A JP 2012171686A JP 2012171686 A JP2012171686 A JP 2012171686A JP 2014032796 A JP2014032796 A JP 2014032796A
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heat
sheet
heat generating
generating member
deformation
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JP6022253B2 (en
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Kentaro Yasu
謙太郎 安
Masahiko Inami
昌彦 稲見
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Japan Science and Technology Agency
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Abstract

PROBLEM TO BE SOLVED: To achieve more complicated deformation more simply.SOLUTION: A deformation member for sheet includes: a heat-shrinkable member 10 to be shrunk by heat; and a heating member 11 which is provided on one surface of the heat-shrinkable member 10 and generates heat by receiving microwaves. Since one surface of the heat-shrinkable member 10 can be heated by irradiating the heating member 11 with microwaves, the heat-shrinkable member 10 can be bent by using the one surface as an inside. The heat-shrinkable member 10 is attached to a sheet so as to deform the sheet.

Description

本発明は、シート状部材を変形させるときに用いるシート用変形部材に関する。   The present invention relates to a deformation member for a sheet used when deforming a sheet-like member.

ユーザが自らの手で平面状のシートを折り曲げることで立体形状を作り出すものには、折り紙、飛び出す絵本、ペーパークラフト等が知られている。   Origami, pop-out picture books, paper crafts, and the like are known as ones in which a user can create a three-dimensional shape by folding a flat sheet with his / her hand.

一方で、シート状部材の形状を変化させるために、熱収縮インクを用いる技術が知られている(例えば、特許文献1参照。)。この技術では、シート状部材に溝を形成し、この溝の中に熱収縮インクを挿入している。この熱収縮インクを加熱することで、シート状部材を変形させている。また、フィルム状の合成樹脂に極めて薄いアルミニウムからなる導電性物質層を形成した電子レンジ用の加熱シートが知られている(例えば、特許文献2参照。)。また、加熱することにより収縮するゴムが知られている(例えば、特許文献3参照。)。   On the other hand, in order to change the shape of a sheet-like member, a technique using heat-shrinkable ink is known (for example, see Patent Document 1). In this technique, a groove is formed in a sheet-like member, and heat shrink ink is inserted into the groove. The sheet-like member is deformed by heating the heat-shrinkable ink. There is also known a heating sheet for a microwave oven in which a conductive material layer made of extremely thin aluminum is formed on a film-like synthetic resin (see, for example, Patent Document 2). Further, a rubber that shrinks when heated is known (for example, see Patent Document 3).

ここで、従来のペーパークラフトでは、立体形状を完成させるために手先の器用さが要求されるため、例えばプレゼントとして相手に送る際には、相手の手先の器用さや、完成させるために要する時間を考慮せねばならず、敬遠されることがあった。また、熱収縮インクを用いるものは、シート状部材に予め溝を形成する必要があった。さらに、熱収縮インクを用いるものでは、マイクロ波により加熱したときのシートの変位量及び変位速度は限られており、複雑な形状を形成することが困難であったり、驚きを演出するのには不十分であったりする。   Here, in conventional paper craft, dexterity of the hand is required to complete the three-dimensional shape. For example, when sending it as a present to the opponent, consider the dexterity of the opponent's hand and the time required to complete it. I had to do it, and sometimes I was shunned. Further, in the case of using heat shrink ink, it is necessary to form grooves in the sheet-like member in advance. Furthermore, in the case of using heat-shrinkable ink, the amount of displacement and the displacement speed of the sheet when heated by microwave are limited, and it is difficult to form a complicated shape or to produce a surprise It may be insufficient.

特許第4260549号公報Japanese Patent No. 4260549 特許第4170460号公報Japanese Patent No. 4170460 特許第4344878号公報Japanese Patent No. 4344878

本発明は、上記したような問題点に鑑みてなされたものであり、その目的は、より簡単に、より複雑な変形を実現することにある。   The present invention has been made in view of the above-described problems, and an object thereof is to realize a simpler and more complicated deformation.

上記課題を達成するために本発明によるシート用変形部材は、
熱により収縮する熱収縮部材と、
前記熱収縮部材の一方の面に設けられ、マイクロ波を受けることにより発熱する発熱部材と、
を備える。
In order to achieve the above object, the deformation member for a sheet according to the present invention is:
A heat shrinkable member that shrinks by heat;
A heat-generating member provided on one surface of the heat-shrinkable member and generating heat by receiving microwaves;
Is provided.

発熱部材は、熱収縮部材の一方の面に設けられるが、該一方の面とは反対側の面である他方の面には設けられていない。熱収縮部材は、発熱部材から熱を受けて温度が上昇する。そして、発熱部材が設けられている一方の面の温度が比較的高くなり、発熱部材が設けられていない他方の面の温度が比較的低くなる。そうすると、熱収縮部材の一方の面の収縮率が比較的高くなり、該一方の面とは反対側の面である他方の面の収縮率が比較的低くなる。これにより、一方の面と、他方の面とで、収縮率に差が生じるので、熱収縮部材は
、収縮率の高いほうへ折れ曲がる。また、熱収縮部材と発熱部材とが接しているので、熱収縮部材を加熱するときの効率が高い。さらに、発熱部材は、マイクロ波を受けることにより発熱するため、家庭で電子レンジを用いることにより発熱させることができる。また、熱収縮部材及び発熱部材の形状(例えば、面積、夫々の長さ、夫々の幅)を調整することにより、熱収縮部材が受ける熱の量を調整することができるので、折れ曲がる角度、速度、時期等を容易に調整することができる。これにより、複雑な変形が可能となる。なお、熱収縮部材及び発熱部材は、共にシート状に形成されていてもよい。また、熱収縮部材と発熱部材とは密着していてもよい。
The heat generating member is provided on one surface of the heat shrinkable member, but is not provided on the other surface which is the surface opposite to the one surface. The heat shrinkable member receives heat from the heat generating member and rises in temperature. Then, the temperature of one surface where the heat generating member is provided is relatively high, and the temperature of the other surface where the heat generating member is not provided is relatively low. If it does so, the shrinkage rate of one side of a heat contraction member will become comparatively high, and the shrinkage rate of the other surface which is a surface on the opposite side to this one surface will become comparatively low. As a result, there is a difference in shrinkage rate between the one surface and the other surface, so that the heat-shrinkable member bends toward the higher shrinkage rate. Moreover, since the heat shrinkable member and the heat generating member are in contact with each other, the efficiency when heating the heat shrinkable member is high. Further, since the heat generating member generates heat when it receives microwaves, it can generate heat by using a microwave oven at home. In addition, the amount of heat received by the heat shrinkable member can be adjusted by adjusting the shape (for example, area, length, width of each) of the heat shrinkable member and the heat generating member. The time etc. can be adjusted easily. Thereby, complicated deformation | transformation is attained. Both the heat shrink member and the heat generating member may be formed in a sheet shape. Further, the heat shrinkable member and the heat generating member may be in close contact with each other.

また、本発明においては、前記発熱部材の長さが、前記マイクロ波の波長に応じて決定されてもよい。ここで、発熱部材においてマイクロ波のエネルギを熱に変換するときの効率(以下、変換効率ともいう。)は、発熱部材の長さによって異なる。そして、この効率が高くなる発熱部材の長さは、マイクロ波の波長によって決まる。したがって、マイクロ波の波長に応じて発熱部材の長さを変えることにより、熱収縮部材が折れ曲がる角度、速度、時期等を調整することができる。例えば、発熱部材の長さをマイクロ波の1/4波長とすることで、発熱量を大きくすることができるので、折れ曲がる角度を大きくしたり、折れ曲がる速度を速くしたり、折れ曲がる時期を早くすることができる。   In the present invention, the length of the heat generating member may be determined according to the wavelength of the microwave. Here, the efficiency (hereinafter also referred to as conversion efficiency) when microwave energy is converted into heat in the heat generating member varies depending on the length of the heat generating member. The length of the heat generating member that increases the efficiency is determined by the wavelength of the microwave. Therefore, by changing the length of the heat generating member according to the wavelength of the microwave, the angle, speed, timing, etc., at which the heat shrinkable member is bent can be adjusted. For example, since the heat generation amount can be increased by setting the length of the heat generating member to ¼ wavelength of the microwave, the bending angle is increased, the bending speed is increased, or the bending time is increased. Can do.

また、本発明においては、前記熱収縮部材の一方向の収縮率が、該一方向と直交する他方向の収縮率よりも大きくてもよい。すなわち、収縮方向に異方性があってもよい。このように、主に一方向に収縮する部材を用いることにより、折れ曲がる方向、折れ曲がる位置などを特定することができる。また、主に一方向に収縮することにより、シート状部材からシート用変形部材が剥がれることを抑制できる。なお、収縮率は、単位体積または単位面積当たりの収縮量としてもよい。   In the present invention, the shrinkage rate in one direction of the heat-shrinkable member may be larger than the shrinkage rate in the other direction orthogonal to the one direction. That is, there may be anisotropy in the shrinkage direction. In this way, by using a member that contracts mainly in one direction, it is possible to specify the direction of bending, the position of bending, and the like. Moreover, it can suppress that the deformation | transformation member for sheets peels from a sheet-like member by shrink | contracting mainly to one direction. The shrinkage rate may be a shrinkage amount per unit volume or unit area.

本発明においては、前記他方向に前記発熱部材を設けてもよい。なお、他方向に発熱部材を設けることには、発熱部材の長手方向を前記他方向とし且つ幅方向(短手方向)を前記一方向とする場合、または、複数の発熱部材の配列方向を他方向とする場合を含む。そうすると、マイクロ波を受けたときに発熱部材の一方向の長さが短くなるように熱収縮部材が収縮する。この収縮が発熱部材の他方向の長さ分だけ起こることにより、発熱部材上の前記他方向に沿って、シート状部材が折れ曲がる。すなわち、折れ曲がる方向は異方性により決まっており、他方向に沿ってシート状部材を設ければ、該他方向に沿ってシート状部材を折り曲げることができる。また、一方向に対する発熱部材の長さ又は幅を調整することにより、折れ曲がる角度を調整することもできる。   In the present invention, the heat generating member may be provided in the other direction. In order to provide the heat generating member in the other direction, the longitudinal direction of the heat generating member is the other direction and the width direction (short direction) is the one direction, or the arrangement direction of the plurality of heat generating members is different. Includes the case of direction. If it does so, a heat contraction member will shrink | contract so that the length of the one direction of a heat generating member may become short when it receives a microwave. When this contraction occurs by the length in the other direction of the heat generating member, the sheet-like member bends along the other direction on the heat generating member. That is, the bending direction is determined by anisotropy, and if a sheet-like member is provided along the other direction, the sheet-like member can be bent along the other direction. Further, the angle at which the heat generating member is bent can be adjusted by adjusting the length or width of the heat generating member with respect to one direction.

本発明においては、前記熱収縮部材は、加熱されたときの前記発熱部材が設けられる面の収縮率が、該発熱部材が設けられる面とは反対側の面の収縮率よりも高くてもよい。すなわち、発熱部材を設けている面の収縮率をより高くすることで、折れ曲がる角度をより大きくしたり、折れ曲がる速度を速くしたり、折れ曲がる時期を早くしたりできる。   In the present invention, when the heat shrinkable member is heated, the shrinkage rate of the surface on which the heat generating member is provided may be higher than the shrinkage rate of the surface opposite to the surface on which the heat generating member is provided. . That is, by increasing the shrinkage rate of the surface on which the heat generating member is provided, the angle of bending can be increased, the speed of bending can be increased, and the time of bending can be increased.

本発明においては、前記発熱部材の面積が、前記熱収縮部材の面積よりも小さくてもよい。そうすると、熱収縮部材で収縮しない箇所が存在するため、シート用変形部材をシート状部材に張り付けたときに、該シート状部材から熱収縮部材が剥がれることを抑制できる。すなわち、熱収縮部材の全体が収縮すると、シート状部材から熱収縮部材が剥がれる虞があるが、これを抑制できる。   In the present invention, the area of the heat generating member may be smaller than the area of the heat shrinkable member. Then, since there is a portion where the heat shrinkable member does not shrink, it is possible to prevent the heat shrinkable member from being peeled off from the sheet-like member when the sheet deformation member is attached to the sheet-like member. That is, when the entire heat shrinkable member is shrunk, the heat shrinkable member may be peeled off from the sheet-like member, but this can be suppressed.

また、上記課題を達成するために本発明によるシート状部材は、前記シート用変形部材を備える。前記したシート用変形部材を備えることにより、シートを容易に変形させることができる。これにより、手先の器用さによらず、立体形状を完成させることができる。   Moreover, in order to achieve the said subject, the sheet-like member by this invention is equipped with the said deformation | transformation member for sheets. By providing the above-described sheet deformation member, the sheet can be easily deformed. Thereby, a solid shape can be completed irrespective of the dexterity of the hand.

そして、本発明においては、加熱することにより曲がる角度、加熱するときに曲がる速度、加熱開始から曲がり始めるまでの時間の少なくとも1つが異なる複数の前記シート用変形部材を備えることができる。そうすると、より複雑な立体形状を容易に完成させることができる。また、立体形状が完成されるまでの過程をより楽しむことができる。加熱することにより曲がる角度、加熱するときに曲がる速度、加熱開始から曲がり始めるまでの時間は、例えば、熱収縮部材及び発熱部材の形状(長さ及び幅を含む)を調整することにより、調整可能である。   In the present invention, it is possible to provide a plurality of sheet deformation members that differ in at least one of an angle of bending by heating, a speed of bending when heating, and a time from the start of heating to the start of bending. Then, a more complicated three-dimensional shape can be easily completed. In addition, the process until the three-dimensional shape is completed can be enjoyed more. The bending angle by heating, the bending speed when heating, the time from the start of heating to the start of bending can be adjusted by adjusting the shape (including length and width) of the heat shrink member and heat generating member, for example. It is.

本発明によれば、より簡単に、より複雑な変形を実現することができる。   According to the present invention, more complicated deformation can be realized more easily.

実施例に係るシート用変形部材の斜視図である。It is a perspective view of the deformation member for sheets concerning an example. シート用変形部材をシートに張り付けたときの斜視図である。It is a perspective view when the deformation member for sheets is stuck on the sheet. 図2に示したシートにマイクロ波を照射した後の断面図である。It is sectional drawing after irradiating a microwave to the sheet | seat shown in FIG. 1つの熱収縮部材に、3つの発熱部材を備える場合を示した図である。It is the figure which showed the case where three heat generating members are provided in one heat contraction member. 1つの熱収縮部材に複数の発熱部材を備える場合を示した図である。It is a figure showing the case where a plurality of exothermic members are provided in one heat contraction member. 発熱部材の他の形状を示した図である。It is the figure which showed the other shape of the heat generating member. 図1に示したシート用変形部材の発熱部材の幅(横軸)とシートが折れ曲がる角度θ(縦軸)との関係を、熱収縮部材の幅毎に示した図である。It is the figure which showed the relationship between the width | variety (horizontal axis) of the heat generating member of the deformation | transformation member for sheets shown in FIG. 1, and angle (theta) (vertical axis) at which a sheet | seat bends for every width | variety of a heat contraction member. シート用変形部材をポストカードに利用した例を示した図である。It is the figure which showed the example which utilized the deformation | transformation member for sheets for the postcard. 図8に示したポストカードを加熱した後の状態を示す図である。It is a figure which shows the state after heating the postcard shown in FIG. 折れ曲がるタイミングが異なるシート用変形部材を複数取り付けたシートを示した図である。It is the figure which showed the sheet | seat which attached multiple deformation | transformation members for sheets from which the timing which bends differs. 図10に示したシートを加熱した後に完成した立体形状を示す図である。It is a figure which shows the solid shape completed after heating the sheet | seat shown in FIG. 折れ曲がる時期及び折れ曲がる角度が異なる複数のシート用変形部材を取り付けたシートを示した図である。It is the figure which showed the sheet | seat which attached the some deformation | transformation member for sheets from which the time to bend and the angle to bend differ. 図12に示したシートを加熱した後に完成した立体形状を示す図である。It is a figure which shows the solid shape completed after heating the sheet | seat shown in FIG.

以下に図面を参照して、この発明を実施するための形態を、実施例に基づいて例示的に詳しく説明する。ただし、この実施例に記載されている構成部品の寸法、材質、形状、その相対配置などは、特に記載がない限りは、この発明の範囲をそれらのみに限定する趣旨のものではない。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be exemplarily described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified.

(実施例1)
図1は、本実施例に係るシート用変形部材1の斜視図である。シート用変形部材1は、熱収縮部材10と、発熱部材11と、を備えて構成されている。
Example 1
FIG. 1 is a perspective view of a sheet deformation member 1 according to the present embodiment. The sheet deformation member 1 includes a heat shrinkable member 10 and a heat generating member 11.

熱収縮部材10は、熱を加えると収縮する部材であり、例えば、架橋ポリオレフィン、半硬質架橋ポリオレフィン、クロロプレンゴム、架橋フッ素ゴム、フッ素樹脂PVDFを材料に用いることができる。熱収縮部材10は、シート状に形成されている。熱収縮部材10は、一方向の収縮率が例えば50%程度と比較的高く、一方向と直交する他方向の収縮率が例えば数%と比較的低い。なお、以下では、収縮率が比較的高い一方向を、「収縮方向」と称し、収縮率が比較的低い他方向を、「非収縮方向」と称する。また、熱収縮部材10は、熱収縮チューブを中心軸と平行に切り開いたものであってもよい。なお、特に記載がない限りは、熱収縮部材10の幅といった場合には、収縮方向の長さを示し、熱収縮部材10の長さといった場合には、非収縮方向の長さを示す。   The heat-shrinkable member 10 is a member that shrinks when heat is applied. For example, crosslinked polyolefin, semi-rigid crosslinked polyolefin, chloroprene rubber, crosslinked fluororubber, or fluororesin PVDF can be used as the material. The heat shrinkable member 10 is formed in a sheet shape. The heat shrinkable member 10 has a relatively high shrinkage rate in one direction, for example, about 50%, and a relatively low shrinkage rate in the other direction orthogonal to the one direction, for example, several percent. Hereinafter, one direction having a relatively high shrinkage rate is referred to as a “shrinkage direction”, and the other direction having a relatively low shrinkage rate is referred to as a “non-shrinkage direction”. The heat shrinkable member 10 may be a heat shrinkable tube that is cut open parallel to the central axis. Unless otherwise specified, the width of the heat shrink member 10 indicates the length in the shrink direction, and the length of the heat shrink member 10 indicates the length in the non-shrink direction.

発熱部材11は、マイクロ波を受けることにより発熱する部材であり、例えば樹脂フィ
ルムにアルミニウム等の金属を蒸着させて形成される。樹脂フィルムには、発熱時の温度上昇に耐え得る材料を選択する。また、発熱部材11は、薄い金属シートとしてもよい。発熱部材11は、例えば接着剤または両面テープ等により、熱収縮部材10に張り付けられる。発熱部材11を熱収縮部材10に張り付けるときに用いる接着剤等は、加熱時に硬くならず、ある程度の柔軟性があることが望ましい。すなわち、加熱時に接着剤等が硬くなると、熱収縮部材10が収縮したときに該熱収縮部材10から発熱部材11が剥がれる虞がある。そして、発熱部材11が剥がれてしまうと、熱収縮部材10へ熱が伝わり難くなるので、所望の角度まで曲がらない虞がある。なお、発熱部材11は、熱収縮部材10の収縮率が比較的低い前記非収縮方向(他方向)に設けられる。
The heat generating member 11 is a member that generates heat when receiving microwaves, and is formed, for example, by depositing a metal such as aluminum on a resin film. For the resin film, a material that can withstand the temperature rise during heat generation is selected. The heat generating member 11 may be a thin metal sheet. The heat generating member 11 is attached to the heat shrinkable member 10 with, for example, an adhesive or a double-sided tape. It is desirable that the adhesive or the like used when the heat generating member 11 is attached to the heat shrinkable member 10 does not become hard when heated and has a certain degree of flexibility. That is, if the adhesive or the like is hardened during heating, the heat generating member 11 may be peeled off from the heat shrinkable member 10 when the heat shrinkable member 10 contracts. When the heat generating member 11 is peeled off, heat is not easily transmitted to the heat shrinkable member 10, so that there is a possibility that the heat generating member 11 does not bend to a desired angle. The heat generating member 11 is provided in the non-shrinking direction (other direction) where the shrinkage rate of the heat shrinking member 10 is relatively low.

なお、特に記載がない限りは、発熱部材11の幅といった場合には、熱収縮部材10の収縮方向における発熱部材11の長さを示し、発熱部材11の長さといった場合には、熱収縮部材10の非収縮方向における発熱部材11の長さを示す。図1においては、発熱部材11の長さが、熱収縮部材10の長さと略同じであるが、これに限らない。一方、発熱部材11の幅は、熱収縮部材10の幅よりも短い。これにより、熱収縮部材10の面積よりも、発熱部材11の面積が小さくなる。そして、熱収縮部材10の面積よりも、発熱部材11の面積を小さくすることで、加熱時に熱収縮部材10から発熱部材11が剥がれることを抑制できる。   Unless otherwise specified, the width of the heat generating member 11 indicates the length of the heat generating member 11 in the contraction direction of the heat contracting member 10, and the length of the heat generating member 11 indicates the heat contracting member. 10 shows the length of the heat generating member 11 in the non-shrinking direction. In FIG. 1, the length of the heat generating member 11 is substantially the same as the length of the heat shrinkable member 10, but is not limited thereto. On the other hand, the width of the heat generating member 11 is shorter than the width of the heat shrinkable member 10. Thereby, the area of the heat generating member 11 becomes smaller than the area of the heat shrinkable member 10. And by making the area of the heat-generating member 11 smaller than the area of the heat-shrinkable member 10, it is possible to suppress the heat-generating member 11 from being peeled from the heat-shrinkable member 10 during heating.

このようなシート用変形部材1に対して、例えば電子レンジを用いてマイクロ波を照射(以下、「加熱」ともいう。)すると、発熱部材11で発熱が起こるため、熱収縮部材10を加熱することができる。そして、加熱された熱収縮部材10は、発熱部材11が張り付けられている面が内側となるように折れ曲がる。ここで、熱収縮部材10においては、発熱部材11が張り付けられている面の温度が、この面の反対側の面であって発熱部材11が張り付けられていない面の温度よりも高くなる。また、発熱部材11が張り付けられている面のほうが温度の上昇する範囲も広くなる。これらにより、発熱部材11が張り付けられている面側の収縮率が、反対側の面側の収縮率よりも高くなる。このように、一方の面が他方の面よりも収縮率が高いことにより、一方の面が内側となって熱収縮部材10が折れ曲がる。   When such a sheet deformation member 1 is irradiated with microwaves (hereinafter also referred to as “heating”) using, for example, a microwave oven, heat generation occurs in the heat generation member 11, so that the heat contraction member 10 is heated. be able to. And the heat-shrinkable member 10 heated is bent so that the surface to which the heat generating member 11 is attached is on the inside. Here, in the heat shrinkable member 10, the temperature of the surface to which the heat generating member 11 is attached is higher than the temperature of the surface on the opposite side of this surface to which the heat generating member 11 is not attached. Further, the range in which the temperature rises is wider on the surface where the heat generating member 11 is attached. As a result, the shrinkage rate on the surface side to which the heat generating member 11 is attached becomes higher than the shrinkage rate on the opposite surface side. Thus, when one surface has a higher shrinkage rate than the other surface, the one surface becomes the inner side and the heat-shrinkable member 10 is bent.

また、熱収縮部材10は、加熱したときの熱収縮率が方向によって異なる。すなわち、主に収縮方向に収縮し、非収縮方向にはほとんど収縮しないため、熱収縮部材10の長さはほとんど変化しない。したがって、非収縮方向に発熱部材11を張り付けた場合には、発熱部材11が張り付けられている箇所において、該発熱部材11の長さは変わらず、幅が短くなる。そすると、折れ曲がる線(以下、折り曲げ線という)が非収縮方向と平行に形成される。この折り曲げ線は、熱収縮部材10が折れ曲がる位置を示している。ただし、熱収縮部材10は、この折り曲げ線上のみで折れ曲がるのではなく、発熱部材11が張り付けられている箇所及びその周辺で曲がるため、ある程度の曲率を持って折れ曲がる。したがって、この折り曲げ線は、曲がる範囲の中心線としてもよい。また、折り曲げ線は、発熱部材11の中心線としてもよい。折り曲げ線は、まだ折れ曲がっていない状態において、折れ曲がる位置を示す線としてもよく、折れ曲がる途中及び折れ曲がった後の状態において、実際に折れ曲がっている位置を示す線としてもよい。   Further, the heat shrinkage member 10 has different heat shrinkage ratios depending on directions when heated. That is, the length of the heat-shrinkable member 10 hardly changes because it contracts mainly in the contraction direction and hardly contracts in the non-contraction direction. Therefore, when the heat generating member 11 is attached in the non-shrinking direction, the length of the heat generating member 11 is not changed and the width is shortened at the place where the heat generating member 11 is attached. Then, a bending line (hereinafter referred to as a bending line) is formed in parallel with the non-shrinkage direction. This fold line indicates a position where the heat shrinkable member 10 is bent. However, the heat-shrinkable member 10 does not bend only on the fold line, but bends at a portion where the heat-generating member 11 is attached and its periphery, and therefore bends with a certain degree of curvature. Therefore, this fold line may be the center line of the bending range. The bend line may be the center line of the heat generating member 11. The fold line may be a line indicating a position where the fold is not bent yet, or may be a line indicating a position where the fold is actually bent in the middle of the fold and after the fold.

次に、図2は、シート用変形部材1をシート13に張り付けたときの斜視図である。また、図3は、図2に示したシート13にマイクロ波を照射した後の断面図である。シート13が折れ曲がる角度をθとする。なお、角度θは、熱収縮部材10または発熱部材11が折れ曲がる角度としてもよい。   Next, FIG. 2 is a perspective view when the sheet deformation member 1 is attached to the sheet 13. 3 is a cross-sectional view of the sheet 13 shown in FIG. 2 after being irradiated with microwaves. An angle at which the sheet 13 is bent is defined as θ. The angle θ may be an angle at which the heat shrink member 10 or the heat generating member 11 is bent.

シート13には、例えば紙、樹脂、木、ゴム、ガラスなどを用いることができる。また、シート13は、シート用変形部材1で折り曲げることのできる硬さ及び厚さとする。な
お、シート13に予め折り目を付けておくことにより、対応できる硬さ及び厚さを調整することもできる。また、シート13は、平面だけでなく曲面も含めることができる。また、シート13には凹凸があってもよい。また、シート13自体は、マイクロ波を照射したときに発熱しない材質のものが望ましいが、これに限らない。熱収縮部材10をシート13に張り付けるときには、発熱部材11が張り付けられている面とは反対側の面をシート13に張り付ける。そうすると、加熱後にシート13の内側に、シート用変形部材1が位置する。一方、熱収縮部材10とシート13との間に発熱部材11を挟むように、シート用変形部材1をシート13に張り付けると、加熱後にシート13の外側に、シート用変形部材1が位置する。シート用変形部材1の何れの面をシート13に張り付けるのかは、見栄えなどを考慮して適宜選択することができる。
For the sheet 13, for example, paper, resin, wood, rubber, glass or the like can be used. The sheet 13 has a hardness and thickness that can be bent by the sheet deformation member 1. In addition, by making a crease in the sheet 13 in advance, the corresponding hardness and thickness can be adjusted. Further, the sheet 13 can include not only a flat surface but also a curved surface. Further, the sheet 13 may be uneven. The sheet 13 itself is preferably made of a material that does not generate heat when irradiated with microwaves, but is not limited thereto. When the heat shrink member 10 is attached to the sheet 13, the surface opposite to the surface where the heat generating member 11 is attached is attached to the sheet 13. If it does so, the deformation member 1 for sheets will be located inside the sheet | seat 13 after a heating. On the other hand, when the sheet deformation member 1 is attached to the sheet 13 so that the heat generating member 11 is sandwiched between the heat shrinkable member 10 and the sheet 13, the sheet deformation member 1 is positioned outside the sheet 13 after heating. . Which surface of the sheet deformation member 1 is attached to the sheet 13 can be appropriately selected in consideration of appearance and the like.

熱収縮部材10は、例えば、接着剤または両面テープ等によりシート13に張り付けられる。なお、熱収縮部材10に粘着性を持たせることで、シート13に張り付けてもよい。また、溶着または融着により張り付けてもよい。なお、シート用変形部材1をシート13に張り付けるときに用いる接着剤等は、加熱しても硬くならず、ある程度の柔軟性があるものを用いることが望ましい。ここで、加熱時に接着剤等が硬くなると、熱収縮部材10が収縮したときにシート13から熱収縮部材10が剥がれる虞がある。そして、熱収縮部材10が剥がれてしまうと、折れ曲がったシート13が元に戻ってしまう虞がある。   The heat-shrinkable member 10 is attached to the sheet 13 with, for example, an adhesive or a double-sided tape. In addition, you may affix on the sheet | seat 13 by giving the heat-shrink member 10 adhesiveness. Further, it may be attached by welding or fusion. Note that it is desirable to use an adhesive or the like that is used when the sheet deformation member 1 is attached to the sheet 13 and that does not become hard even when heated and has a certain degree of flexibility. Here, if the adhesive or the like is hardened during heating, the heat shrinkable member 10 may be peeled off from the sheet 13 when the heat shrinkable member 10 is shrunk. And if the heat contraction member 10 peels, there exists a possibility that the bent sheet | seat 13 may return.

シート用変形部材1を張り付けたシート13に対して、例えば電子レンジを用いてマイクロ波を照射すると、発熱部材11において発熱が起こる。そして、発熱部材11からの熱を受けて熱収縮部材10が収縮する。このときに、発熱部材11が熱収縮部材10の内側となるように、該熱収縮部材10が折れ曲がる。そして、熱収縮部材10が接着されているシート13も、該熱収縮部材10と一緒に折れ曲がる。   When the sheet 13 with the sheet deforming member 1 attached thereto is irradiated with microwaves using, for example, a microwave oven, heat generation occurs in the heat generating member 11. And the heat contraction member 10 contracts in response to the heat from the heat generating member 11. At this time, the heat shrinkable member 10 is bent so that the heat generating member 11 is inside the heat shrinkable member 10. Then, the sheet 13 to which the heat shrink member 10 is bonded is also bent together with the heat shrink member 10.

ところで、シート13が折れ曲がる角度、折れ曲がる速度、折れ曲がる時期は、熱収縮部材10及び発熱部材11の面積、並びに、発熱部材11の形状などの影響を受ける。例えば、発熱部材11が発熱し易い形状であるほど、シート13が折れ曲がる角度が大きくなったり、折れ曲がる速度が速くなったり、折れ曲がる時期が早くなったりする。   Incidentally, the angle at which the sheet 13 is bent, the speed at which the sheet 13 is bent, and the timing at which the sheet 13 is bent are affected by the area of the heat shrink member 10 and the heat generating member 11 and the shape of the heat generating member 11. For example, as the heat generating member 11 is more easily heated, the angle at which the sheet 13 is bent becomes larger, the speed at which the sheet 13 is bent becomes faster, or the time at which the sheet 13 is bent becomes earlier.

例えば、発熱部材11の長さが変わることにより、発熱量も変わる。ここで、一般的な電子レンジに用いられているマイクロ波の周波数は、例えば2.45GHzであり、この場合の波長は約12.2cmである。そして、発熱部材11の長さを、電子レンジのマイクロ波の波長の四分の一である3cm程度としたときに、変換効率が高くなる。したがって、発熱部材11の長さを3cm、または3cm近傍とすることで、熱収縮部材10を速やかに加熱することできる。一方、この長さよりも長くても又は短くても、変換効率が低下する。   For example, when the length of the heat generating member 11 changes, the amount of heat generated also changes. Here, the frequency of the microwave used for a general microwave oven is 2.45 GHz, for example, and the wavelength in this case is about 12.2 cm. When the length of the heat generating member 11 is about 3 cm, which is a quarter of the microwave wavelength of the microwave oven, the conversion efficiency is increased. Therefore, the heat shrinkable member 10 can be quickly heated by setting the length of the heat generating member 11 to 3 cm or in the vicinity of 3 cm. On the other hand, if it is longer or shorter than this length, the conversion efficiency decreases.

なお、発熱部材11の長さが2cm、3cm、4cmと異なる3枚のシート用変形部材1に対して、同時にマイクロ波の照射を開始した場合に、発熱部材11の長さが3cmのものが最初に折れ曲がり、次いで、4cmのものが折れ曲がり、最後に2cmのものが折れ曲がることを実験により確認した。このように、発熱部材11の長さをマイクロ波の波長に基づいて調整することにより、シート用変形部材1及びシート13が折れ曲がる時期などを調整することができる。   In addition, when the microwave irradiation is simultaneously started on the three sheet deformation members 1 having lengths of 2 cm, 3 cm, and 4 cm, the length of the heat generating member 11 is 3 cm. It was confirmed by an experiment that the first bent, then the 4 cm bent, and finally the 2 cm bent. In this way, by adjusting the length of the heat generating member 11 based on the wavelength of the microwave, it is possible to adjust the time when the sheet deformation member 1 and the sheet 13 are bent.

また、発熱部材11の長さが同じ場合には、発熱部材11の幅(面積としてもよい)に応じて、発熱量が変わる。例えば、発熱部材11の面積が大きいほど、発熱量が多くなるので、シート13が折れ曲がる角度が大きくなり、折れ曲がる速度が速くなり、折れ曲がる時期が早くなる。しかし、発熱部材11を複数に分けることにより、発熱部材11の面積を小さくしつつ、シート13が折れ曲がる角度及び折れ曲がる速度を同等に維持するこ
ともできる。
Further, when the length of the heat generating member 11 is the same, the amount of heat generated varies depending on the width (or area) of the heat generating member 11. For example, as the area of the heat generating member 11 increases, the amount of heat generation increases, so the angle at which the sheet 13 is bent increases, the speed at which the sheet 13 is bent becomes faster, and the time at which the sheet 13 is bent becomes earlier. However, by dividing the heat generating member 11 into a plurality, it is possible to keep the angle of the sheet 13 to be bent and the bending speed to be equal while reducing the area of the heat generating member 11.

図4は、1つの熱収縮部材10に、3つの発熱部材11A,11B,11Cを備える場合を示した図である。3つの発熱部材11A,11B,11Cの長さは、熱収縮部材10と同じであり、図1に示した場合と同じである。3つの発熱部材11A,11B,11Cは、幅方向に所定の間隔で設けられている。このときに、図1で示した発熱部材11から熱が伝わる範囲と、図4に示した発熱部材11A,11B,11Cから熱が伝わる範囲と、が同じになるように、各発熱部材11A,11B,11Cを配置している。なお、所定の間隔及び発熱部材11A,11B,11Cの幅は、加熱時に、夫々の発熱部材11A,11B,11Cから、熱収縮部材10に熱が伝わる範囲を考慮しつつ決定される。   FIG. 4 is a view showing a case where three heat generating members 11A, 11B, and 11C are provided in one heat shrinkable member 10. The lengths of the three heat generating members 11A, 11B, and 11C are the same as those of the heat shrinkable member 10, and are the same as those shown in FIG. The three heat generating members 11A, 11B, and 11C are provided at predetermined intervals in the width direction. At this time, each heat generating member 11A, so that the range where heat is transmitted from the heat generating member 11 shown in FIG. 1 is the same as the range where heat is transmitted from the heat generating members 11A, 11B, 11C shown in FIG. 11B and 11C are arranged. The predetermined intervals and the widths of the heat generating members 11A, 11B, and 11C are determined in consideration of the range in which heat is transmitted from the heat generating members 11A, 11B, and 11C to the heat shrinkable member 10 during heating.

ここで、発熱部材11A,11B,11Cから熱収縮部材10へ熱が伝わるのは、発熱部材11A,11B,11Cが直接貼り付けられている箇所だけではない。すなわち、発熱部材11が張り付けられている箇所の周りにも熱が伝わる。そして、熱が伝わる範囲内であり、十分に温度が高くなれば、熱収縮部材10は収縮する。この熱が伝わる範囲は、実験やシミュレーション等によって求めることができる。このように、発熱部材11を複数に分けると、熱収縮部材10が収縮したときに、該熱収縮部材10から発熱部材11が剥がれ難い。このため、所望の角度までシート13及びシート用変形部材1をより確実に折り曲げることができる。   Here, the heat is transmitted from the heat generating members 11A, 11B, and 11C to the heat shrinkable member 10 not only at the portion where the heat generating members 11A, 11B, and 11C are directly attached. That is, heat is also transmitted around the place where the heat generating member 11 is attached. And if it is in the range where heat is transmitted and the temperature is sufficiently high, the heat-shrinkable member 10 contracts. The range in which this heat is transmitted can be obtained by experiments or simulations. As described above, when the heat generating member 11 is divided into a plurality of parts, the heat generating member 11 is hardly peeled off from the heat shrinkable member 10 when the heat shrinkable member 10 contracts. For this reason, the sheet | seat 13 and the deformation | transformation member 1 for sheets can be more reliably bent to a desired angle.

また、図5は、1つの熱収縮部材10に複数の発熱部材11を備える場合を示した図である。夫々の発熱部材11は、収縮方向が長手方向になるように形成される。すなわち、発熱部材11は、非収縮方向よりも収縮方向が長い。そして、夫々の発熱部材11は、非収縮方向に所定の間隔で配置される。例えば、図1に示した発熱部材11の幅と、図5に示した発熱部材11の収縮方向の長さは同じである。   FIG. 5 is a diagram showing a case where a plurality of heat generating members 11 are provided in one heat shrinkable member 10. Each heat generating member 11 is formed such that the shrinking direction is the longitudinal direction. That is, the heat generating member 11 has a contraction direction longer than the non-contraction direction. Each heat generating member 11 is arranged at a predetermined interval in the non-shrinking direction. For example, the width of the heat generating member 11 shown in FIG. 1 is the same as the length of the heat generating member 11 shown in FIG. 5 in the contraction direction.

このように発熱部材11を配置することにより、マイクロ波を照射したときの変換効率が図1に示した場合よりも低くなる。これにより、熱収縮部材10が折れ曲がる時期を遅くしたり、折れ曲がる速度を遅くしたりすることができる。また、隣接する発熱部材11の間の熱収縮部材10にも該発熱部材11から十分な熱が伝われば、折れ曲がる角度が図1と同等になる。   By arranging the heat generating member 11 in this way, the conversion efficiency when irradiated with microwaves becomes lower than that shown in FIG. Thereby, the time when the heat shrinkable member 10 bends can be delayed, or the bending speed can be slowed. Further, if sufficient heat is transmitted from the heat generating member 11 to the heat shrinkable member 10 between the adjacent heat generating members 11, the angle at which the heat contracting member 10 is bent becomes the same as that in FIG.

なお、図5における発熱部材11の収縮方向の長さ、発熱部材11の非収縮方向の長さ、発熱部材11の間隔は、熱収縮部材10の折れ曲がる角度、折れ曲がる速度、折れ曲がる時期と関係がある。これらの関係は、実験またはシミュレーションにより求めることができる。   The length of the heat generating member 11 in the contraction direction, the length of the heat generating member 11 in the non-contraction direction, and the interval between the heat generating members 11 in FIG. 5 are related to the angle at which the heat contracting member 10 is bent, the speed at which it is bent, and the time at which it is bent. . These relationships can be obtained by experiment or simulation.

また、図6は、発熱部材11の他の形状を示した図である。図6に示す発熱部材11の非収縮方向の長さは、図1に示す場合と同じであるが、幅は非収縮方向の位置によって変化する。すなわち、発熱部材11は、収縮方向に複数の枝が等間隔に延びている。このように延びた枝の周りにも熱が伝わるので、隣り合う枝と枝との間であっても熱収縮部材10を収縮させることができる。   FIG. 6 is a view showing another shape of the heat generating member 11. The length in the non-shrink direction of the heat generating member 11 shown in FIG. 6 is the same as that shown in FIG. 1, but the width varies depending on the position in the non-shrink direction. That is, the heat generating member 11 has a plurality of branches extending at equal intervals in the contraction direction. Since heat is transmitted also around the branch extending in this way, the heat shrinkable member 10 can be contracted even between adjacent branches.

また、図7は、図1に示したシート用変形部材1の発熱部材11の幅(横軸)とシート13が折れ曲がる角度θ(縦軸)との関係を、熱収縮部材10の幅毎に示した図である。実線は、実際に実験を行って得た値であり、一点鎖線は、シミュレーションによって得た値である。角度θは、図3で示される角度である。また、実線は同条件で実験を5回行ったときの平均値である。一番上の図は、熱収縮部材10の幅が9mmの場合を示し、上から二番目の図は、熱収縮部材10の幅が15mmの場合を示し、一番下の図は、熱収縮部材10の幅が21mmのときを示している。夫々の幅の熱収縮部材10に対して、発熱部
材11の幅を3mm、5mm、7mmとして、実験及びシミュレーションを行っている。図7において、シート13が折れ曲がる前の角度θは、180度である。
7 shows the relationship between the width (horizontal axis) of the heat generating member 11 of the sheet deformation member 1 shown in FIG. 1 and the angle θ (vertical axis) at which the sheet 13 bends for each width of the heat shrinkable member 10. FIG. The solid line is a value obtained by actually conducting an experiment, and the alternate long and short dash line is a value obtained by simulation. The angle θ is the angle shown in FIG. The solid line is the average value when the experiment was conducted five times under the same conditions. The uppermost figure shows the case where the width of the heat shrinkable member 10 is 9 mm, the second figure from the top shows the case where the width of the heat shrinkable member 10 is 15 mm, and the lowermost figure shows the heat shrinkage The case where the width of the member 10 is 21 mm is shown. Experiments and simulations are performed with the heat-shrinking member 11 having a width of 3 mm, 5 mm, and 7 mm for the heat-shrinkable member 10 of each width. In FIG. 7, the angle θ before the sheet 13 is bent is 180 degrees.

なお、シミュレーションを行った結果、熱収縮部材10がシート13から剥がれてしまったり、シート13が立ち上がった後に倒れてしまったりすると考えられる場合を、破線で示している。例えば、熱収縮部材10の幅に対して、発熱部材11の幅が比較的大きいと、熱収縮部材10がシート13から剥がれ易くなる。ここで、シート13を置いたときに下側を向く面にシート用変形部材1を配置すると、マイクロ波を照射したときに、シート13が折れ曲がるにしたがって、熱収縮部材10が持ち上がり、シート13が立ち上がる。そして、シート13が折れ曲がるにしたがって、角度θが小さくなる。角度θが0に近くなると、シート13は倒れてしまう。   In addition, as a result of the simulation, the case where it is considered that the heat shrinkable member 10 is peeled off from the sheet 13 or falls after the sheet 13 is raised is indicated by a broken line. For example, if the width of the heat generating member 11 is relatively large with respect to the width of the heat shrinkable member 10, the heat shrinkable member 10 is easily peeled off from the sheet 13. Here, when the sheet deformation member 1 is arranged on the surface facing downward when the sheet 13 is placed, the heat shrinkable member 10 is lifted as the sheet 13 is bent when the microwave is irradiated, and the sheet 13 is stand up. Then, as the sheet 13 is bent, the angle θ decreases. When the angle θ is close to 0, the sheet 13 falls.

なお、シミュレーションでは、発熱部材11からの距離に基づいて熱収縮部材10の温度が推定され、この温度に基づいて熱収縮部材10の収縮率を設定している。   In the simulation, the temperature of the heat shrinkable member 10 is estimated based on the distance from the heat generating member 11, and the shrinkage rate of the heat shrinkable member 10 is set based on this temperature.

図7に示されるように、熱収縮部材10の幅及び発熱部材11の幅によって、シート13が折れ曲がる角度が異なる。したがって、熱収縮部材10の幅及び発熱部材11の幅を調節することにより、シート13が折れ曲がる角度を調節することができる。例えば、熱収縮部材10の幅に対する発熱部材11の幅の比が大きくなるにしたがって、角度θは小さくなるものの、この比が大きくなりすぎると、熱収縮部材10から発熱部材11が剥がれたり、シート13が倒れたりする。熱収縮部材10から発熱部材11が剥がれると、角度θが所望の値とならない。シート13が倒れると、シート13の変形時の演出に悪影響を与える虞がある。また、熱収縮部材10の収縮率によっても、シート13が折れ曲がる角度が変わるため、熱収縮部材10の材質によって、熱収縮部材10の幅及び発熱部材11の幅を調整してもよい。これらは、例えば、500Wの電子レンジで10秒加熱することを想定して調整してもよい。   As shown in FIG. 7, the angle at which the sheet 13 is bent varies depending on the width of the heat shrinkable member 10 and the width of the heat generating member 11. Therefore, the angle at which the sheet 13 is bent can be adjusted by adjusting the width of the heat shrinkable member 10 and the width of the heat generating member 11. For example, as the ratio of the width of the heat generating member 11 to the width of the heat shrinkable member 10 increases, the angle θ decreases. However, if this ratio becomes too large, the heat generating member 11 peels off from the heat shrinkable member 10 or the sheet 13 falls down. When the heat generating member 11 is peeled off from the heat shrinkable member 10, the angle θ does not become a desired value. If the sheet 13 falls, there is a possibility that an effect at the time of deformation of the sheet 13 is adversely affected. Further, since the angle at which the sheet 13 bends also changes depending on the shrinkage rate of the heat shrinkable member 10, the width of the heat shrinkable member 10 and the width of the heat generating member 11 may be adjusted depending on the material of the heat shrinkable member 10. These may be adjusted assuming heating for 10 seconds in a 500 W microwave oven, for example.

そして、図7において、実線と一点鎖線とは比較的近い値となっている。このため、シミュレーションの結果に基づいて、熱収縮部材10及び発熱部材11の形状を決定することができるので、実験を行って試行錯誤する手間を省くことができる。   In FIG. 7, the solid line and the alternate long and short dash line are relatively close values. For this reason, since the shape of the heat-shrinkable member 10 and the heat generating member 11 can be determined based on the result of the simulation, it is possible to save time and effort for experimentation and error.

本実施例に係るシート用変形部材1は、折り紙、飛び出す絵本、ペーパークラフト、雑誌の付録等、様々なものに用いることができる。また、紙コップの取っ手や食品を加熱する容器の取っ手などにも用いることができる。例えば、電子レンジで加熱する前には取っ手が容器本体に張り付いており、加熱後に取っ手が立ち上がるようにすれば、輸送時や陳列時には取っ手が邪魔にならず、加熱後には温度が高くなっている食品から離れたところに取っ手が立ち上がっているので、手に持ったときの熱さを低減できる。   The sheet deformation member 1 according to the present embodiment can be used for various things such as origami, a picture book that pops out, a paper craft, and a magazine appendix. It can also be used as a handle for a paper cup or a container for heating food. For example, if the handle sticks to the container body before heating in a microwave oven and the handle rises after heating, the handle will not get in the way during transportation or display, and the temperature will rise after heating. Since the handle stands up away from the food, you can reduce the heat when you hold it.

以上説明したように本実施例によれば、普及率が比較的高い電子レンジを用いて、シート13を平面形状から立体形状へ変化させることができる。したがって、手先の器用さによらず、家庭で安全に形状変化を楽しむことができる。また、電子レンジ内での変形を見て楽しむことができる。さらに、電子レンジを用いることで、加熱時には熱源とユーザとが隔離されるため、安全である。また、発熱部材11以外は、マイクロ波を照射してもほとんど発熱せず、また、夫々の部材が薄いため加熱後には熱が速やかに放出されるので、加熱終了後にすぐに温度が低くなり、すぐに触ることができる。   As described above, according to the present embodiment, the sheet 13 can be changed from a planar shape to a three-dimensional shape using a microwave oven having a relatively high penetration rate. Therefore, the shape change can be enjoyed safely at home regardless of the dexterity of the hand. You can also enjoy watching the deformation inside the microwave oven. Furthermore, the use of the microwave oven is safe because the heat source and the user are isolated during heating. Further, except for the heat generating member 11, almost no heat is generated even when irradiated with microwaves, and since each member is thin, heat is quickly released after heating, so the temperature immediately decreases after the heating is finished, You can touch immediately.

また、シートが折れ曲がる角度や速度、時期を調整することができるので、これらの異なる複数のシート用変形部材1を1枚のシートに複数配置することにより、複雑な形状に変化させることができる。また、熱収縮部材10及び発熱部材11の面積や形状が、シート13の折れ曲がる角度や速度、時期に与える影響を予め求めておいたり、シミュレーシ
ョンで求めておいたりすることで、変形後の形状を予想することができる。これにより、立体形状の設計が容易になる。また、完成後の形状の再現性を高めることができる。
In addition, since the angle, speed, and timing at which the sheet is bent can be adjusted, a plurality of these different sheet deformation members 1 can be arranged on a single sheet to change the shape into a complicated shape. In addition, the area and shape of the heat-shrinkable member 10 and the heat-generating member 11 can be obtained in advance by calculating the influence on the angle, speed, and timing at which the sheet 13 is bent, or by determining the shape after deformation. Can be expected. This facilitates the design of a three-dimensional shape. Moreover, the reproducibility of the shape after completion can be improved.

また、熱により変色したり、発色したりするインクを用いてシート13に予め字や絵を書いておくことで、加熱後にメッセージや模様が浮き出るといった演出もできる。   In addition, by writing characters or pictures on the sheet 13 in advance using ink that changes color or develops color due to heat, it is possible to produce a message or pattern that emerges after heating.

また、シート13にシート用変形部材1を接着して加熱すれば、該シート13を折り曲げることができるので、シート13に予め溝などを設ける必要もない。さらに、熱収縮部材10には収縮方向と非収縮方向とが存在するので、シート13を折り曲げる方向を定めることができる。   Further, if the sheet deformation member 1 is bonded to the sheet 13 and heated, the sheet 13 can be bent, so that it is not necessary to provide a groove or the like in the sheet 13 in advance. Furthermore, since the heat shrinkable member 10 has a shrinkage direction and a non-shrinkage direction, the direction in which the sheet 13 is bent can be determined.

なお、本実施例においては、発熱部材11が設けられていない面よりも、発熱部材11が設けられている面のほうで、熱収縮部材10の収縮率が高くなっていてもよい。すなわち、熱収縮部材10の一方の面と他方の面とで熱収縮率が異なっていてもよい。この場合、熱収縮部材の厚さ方向で熱収縮率が徐々に変化してもよい。このようにすることで、加熱時の発熱部材11が設けられている面側の収縮率が相対的により高くなるので、折れ曲がる角度をより大きくすることができる。また、折れ曲がる速度をより速くし、折れ曲がる時期をより早くすることができる。   In the present embodiment, the shrinkage rate of the heat shrinkable member 10 may be higher on the surface on which the heat generating member 11 is provided than on the surface on which the heat generating member 11 is not provided. That is, the heat shrinkage rate may be different between one surface of the heat shrinkable member 10 and the other surface. In this case, the heat shrinkage rate may gradually change in the thickness direction of the heat shrinkable member. By doing in this way, since the contraction | shrinkage rate of the surface side in which the heat generating member 11 is provided at the time of a heating becomes comparatively higher, the angle at which it bends can be enlarged more. In addition, the folding speed can be made faster, and the folding time can be made earlier.

また、シート用変形部材1の形状を最適化することにより、熱収縮部材10及び発熱部材11の使用量を低減することができる。これにより、シート用変形部材1の軽量化が可能となる。たとえば、シート13を立ち上がらせるときに、シート用変形部材1が重いほど、立ち上がらせるためにより大きな力が必要となる。そして、シート用変形部材1が重すぎると、シート13が立ち上がらなくなる。したがって、シート用変形部材1を軽量化できれば、立ち上がらせるために必要となる力を小さくすることができ、より確実にシート13を立ち上がらせることができる。   Further, by optimizing the shape of the deformation member 1 for a sheet, the usage amount of the heat shrink member 10 and the heat generating member 11 can be reduced. Thereby, weight reduction of the deformation member 1 for sheets is attained. For example, when the sheet 13 is raised, the heavier the sheet deformation member 1 is, the more force is required to stand up. If the sheet deforming member 1 is too heavy, the sheet 13 cannot rise. Therefore, if the weight of the sheet deforming member 1 can be reduced, the force required to stand up can be reduced, and the sheet 13 can be raised more reliably.

(実施例2)
図8は、シート用変形部材1をポストカード50に利用した例を示した図である。図9は、図8に示したポストカード50を加熱した後の状態を示す図である。完成した立体形状は、動物(犬)を模倣したものである。
(Example 2)
FIG. 8 is a view showing an example in which the sheet deformation member 1 is used for the postcard 50. FIG. 9 is a diagram showing a state after the postcard 50 shown in FIG. 8 is heated. The completed three-dimensional shape imitates an animal (dog).

加熱後に動物の形状となる部分(以下、単に動物51という)にシート用変形部材1が張り付けられる。シート用変形部材1は、熱収縮部材10に対して発熱部材11が動物51の反対側に位置するように、該動物51に張り付けられる。また、シート用変形部材1の折り曲げ線が、動物51の背51Aに沿って配置されるように、シート用変形部材1を動物51に張り付ける。   The sheet deformable member 1 is attached to a portion (hereinafter simply referred to as an animal 51) that becomes an animal shape after heating. The sheet deformation member 1 is attached to the animal 51 such that the heat generating member 11 is located on the opposite side of the animal 51 with respect to the heat shrinkable member 10. Further, the sheet deformation member 1 is attached to the animal 51 so that the folding line of the sheet deformation member 1 is arranged along the back 51 </ b> A of the animal 51.

そして、台紙52に動物51を張り付けることにより、ポストカード50が完成する。台紙52に動物51を張り付けるときには、加熱時に台紙52から動物51が剥がれるように、例えば粘着力を調整しておく。   Then, the post card 50 is completed by attaching the animal 51 to the mount 52. When the animal 51 is attached to the mount 52, for example, the adhesive force is adjusted so that the animal 51 is peeled off from the mount 52 during heating.

このように構成されたポストカード50では、ポストカード50を電子レンジで加熱することにより、動物51が背51Aに沿って折れ曲がり、該動物51が台紙52から立ち上がる。これにより、簡単かつ安全に、立体形状を完成させることができる。   In the postcard 50 configured as described above, the animal 51 is bent along the spine 51 </ b> A by heating the postcard 50 with a microwave oven, and the animal 51 rises from the mount 52. Thereby, a solid shape can be completed easily and safely.

(実施例3)
図10は、折れ曲がるタイミングが異なるシート用変形部材91,92,93,94を複数取り付けたシート90を示した図である。また、図11は、図10に示したシート90を加熱した後に完成した立体形状を示す図である。完成した立体形状は、リスを模倣し
たものである。なお、図10において見えている側の面を表面とし、見えていない側の面を裏面として説明する。
(Example 3)
FIG. 10 is a view showing a sheet 90 to which a plurality of sheet deformation members 91, 92, 93, 94 having different bending timings are attached. FIG. 11 is a diagram showing a three-dimensional shape completed after the sheet 90 shown in FIG. 10 is heated. The completed 3D shape imitates a squirrel. In the following description, the surface that is visible in FIG. 10 is the front surface, and the surface that is not visible is the back surface.

表面には、比較的早い時期に折れ曲がるシート用変形部材92,93を2つ備えている。この比較的早い時期に折れ曲がるシート用変形部材92,93はリスの足に相当する箇所に設けられる。一方、表面及び裏面に、比較的遅い時期に折れ曲がるシート用変形部材91,94を1つずつ備えている。この比較的遅い時期に折れ曲がるシート用変形部材91,94は、表面のリスの尾に相当する箇所と、裏面のリスの背に相当する箇所に設けられる。何れのシート用変形部材91,92,93,94も、発熱部材11がシート90の外側に位置するように、該シート90に張り付けられている。なお、図10において、折り曲げ線を一点鎖線で示している。この一点鎖線が各シート用変形部材91,92,93,94の非収縮方向となる。   The surface is provided with two sheet deformation members 92 and 93 that bend relatively early. The sheet deforming members 92 and 93 that bend at a relatively early time are provided at locations corresponding to the legs of the squirrel. On the other hand, sheet deformation members 91 and 94 that are bent at a relatively late time are provided on the front and back surfaces, respectively. The sheet deformation members 91 and 94 that are bent at a relatively late time are provided at a location corresponding to the tail of the squirrel on the front surface and a location corresponding to the back of the squirrel on the back surface. Any of the sheet deformation members 91, 92, 93, 94 is attached to the sheet 90 so that the heat generating member 11 is positioned outside the sheet 90. In FIG. 10, the folding line is indicated by a one-dot chain line. This alternate long and short dash line is the non-shrinkage direction of each of the sheet deformation members 91, 92, 93, 94.

このように構成されたシート90は、表面に設けられたシート用変形部材92,93,94と、裏面に設けられたシート用変形部材91とで、折れ曲がる方向が逆になる。そして、加熱時には、先に、足に相当する箇所に配置されているシート用変形部材92,93が折れ曲がり、その後に、背及び尾に相当する箇所に配置されているシート用変形部材91,94が折れ曲がる。仮に、全てのシート用変形部材91,92,93,94が同時に折れ曲がった場合には、足または背に相当する箇所に反対方向に折れ曲がる力がかかる虞があり、所望の立体形状ができない虞がある。   In the sheet 90 configured in this way, the bending direction is reversed between the sheet deformation members 92, 93, 94 provided on the front surface and the sheet deformation member 91 provided on the back surface. At the time of heating, the sheet deforming members 92 and 93 disposed at the positions corresponding to the feet are bent first, and then the sheet deforming members 91 and 94 disposed at the positions corresponding to the back and the tail. Bends. If all of the sheet deforming members 91, 92, 93, 94 are bent at the same time, there is a possibility that a force corresponding to the foot or the back is bent in the opposite direction, and a desired three-dimensional shape cannot be formed. is there.

これに対して、本実施例のように、最初に足を折り曲げてから、背及び尾を折り曲げることにより、足または背に対して反対方向に折れ曲がる力がかかることを抑制できるので、立体形状をより確実に完成させることができる。   On the other hand, as in this embodiment, by first bending the foot and then bending the back and tail, it is possible to suppress the force of bending in the opposite direction with respect to the foot or the back, so that the three-dimensional shape can be reduced. It can be completed more reliably.

このように、折り曲げる順番を考慮することで、より複雑な形状を完成させることができる。   Thus, a more complicated shape can be completed by considering the bending order.

(実施例4)
図12は、折れ曲がる時期及び折れ曲がる角度が異なる複数のシート用変形部材104,105を取り付けたシート100を示した図である。また、図13は、図12に示したシート100を加熱した後に完成した立体形状を示す図である。完成した立体形状は、ロボットを模倣したものである。なお、図12において見えている側の面を表面とし、見えていない側の面を裏面として説明する。また、折り曲げ線を一点鎖線で示している。
Example 4
FIG. 12 is a view showing a sheet 100 to which a plurality of sheet deforming members 104 and 105 having different bending times and bending angles are attached. FIG. 13 is a view showing a three-dimensional shape completed after heating the sheet 100 shown in FIG. The completed solid shape imitates a robot. In the following description, the surface that is visible in FIG. 12 is the front surface, and the surface that is not visible is the back surface. Further, the folding line is indicated by a one-dot chain line.

シート100は、頭101、胴102、足103を備えて構成されている。頭101と胴102は、首109を介して繋がれている。また、胴102には、右手107及び左手108が備わる。頭101には、顔106が備わる。そして、シート100の表面及び裏面には、図12に示すように、複数のシート用変形部材104,105が張り付けられている。ここで、足103に張り付けられているシート用変形部材104は、加熱後の角度θが、他のシート用変形部材105よりも小さくなる。他のシート用変形部材105は、加熱後の角度θがおよそ90度となるように設定される。また、右手107及び左手108に張り付けられるシート用変形部材105の他は、何れのシート用変形部材104,105も、長手方向が非収縮方向となる。また、加熱前のシート100は、平面状である。   The seat 100 includes a head 101, a torso 102, and legs 103. The head 101 and the torso 102 are connected via a neck 109. In addition, the body 102 includes a right hand 107 and a left hand 108. The head 101 is provided with a face 106. A plurality of sheet deformation members 104 and 105 are attached to the front and back surfaces of the sheet 100 as shown in FIG. Here, the sheet deformation member 104 attached to the foot 103 has a smaller angle θ after heating than the other sheet deformation members 105. The other sheet deformation members 105 are set so that the angle θ after heating is approximately 90 degrees. In addition to the sheet deformation member 105 attached to the right hand 107 and the left hand 108, the longitudinal direction of each of the sheet deformation members 104 and 105 is the non-shrinkable direction. Moreover, the sheet | seat 100 before a heating is planar.

例えば、最初に頭101及び足103を形成し、その後に胴102を形成し、最後に右手107及び左手が108起き上がるように、夫々のシート用変形部材104,105が折れ曲がる時期を調整してもよい。そうすることで、より長い時間、変形を楽しむことができる。そして、図12に示したシート100の状態では、図13に示した完成後の形状を想像することは困難であり、完成したときの驚きは大きい。このようにして、複雑な形
状を完成させると共に、加熱前のシートの状態からは想像できないような形状を完成させることができる。このため、ユーザの驚きが増す。
For example, the timing at which each of the sheet deformation members 104 and 105 is bent is adjusted so that the head 101 and the foot 103 are formed first, then the torso 102 is formed, and the right hand 107 and the left hand are finally raised 108. Good. By doing so, the deformation can be enjoyed for a longer time. In the state of the sheet 100 shown in FIG. 12, it is difficult to imagine the completed shape shown in FIG. 13, and the surprise when completed is great. In this way, a complicated shape can be completed, and a shape that cannot be imagined from the state of the sheet before heating can be completed. For this reason, a user's surprise increases.

1 シート用変形部材
10 熱収縮部材
11 発熱部材
11A 発熱部材
13 シート
50 ポストカード
51 動物
51A 背
52 台紙
DESCRIPTION OF SYMBOLS 1 Sheet deformation member 10 Heat shrink member 11 Heat generating member 11A Heat generating member 13 Sheet 50 Postcard 51 Animal 51A Back 52 Mount

Claims (8)

熱により収縮する熱収縮部材と、
前記熱収縮部材の一方の面に設けられ、マイクロ波を受けることにより発熱する発熱部材と、
を備えるシート用変形部材。
A heat shrinkable member that shrinks by heat;
A heat-generating member provided on one surface of the heat-shrinkable member and generating heat by receiving microwaves;
A deformation member for a sheet comprising:
前記発熱部材の長さが、前記マイクロ波の波長に応じて決定される請求項1に記載のシート用変形部材。   The sheet deformation member according to claim 1, wherein a length of the heat generating member is determined according to a wavelength of the microwave. 前記熱収縮部材の一方向の収縮率が、該一方向と直交する他方向の収縮率よりも大きい請求項1または2に記載のシート用変形部材。   The deformation member for a sheet according to claim 1 or 2, wherein a shrinkage rate in one direction of the heat shrinkable member is larger than a shrinkage rate in another direction orthogonal to the one direction. 前記他方向に前記発熱部材を設ける請求項3に記載のシート用変形部材。   The sheet deformation member according to claim 3, wherein the heat generating member is provided in the other direction. 前記熱収縮部材は、加熱されたときの前記発熱部材が設けられる面の収縮率が、該発熱部材が設けられる面とは反対側の面の収縮率よりも高い請求項1から4の何れか1項に記載のシート用変形部材。   5. The heat shrinkable member according to claim 1, wherein when heated, the surface on which the heat generating member is provided has a higher shrinkage rate than the surface on the opposite side of the surface on which the heat generating member is provided. The deformation member for a sheet according to item 1. 前記発熱部材の面積が、前記熱収縮部材の面積よりも小さい請求項1から5の何れか1項に記載のシート用変形部材。   The sheet deformation member according to any one of claims 1 to 5, wherein an area of the heat generating member is smaller than an area of the heat shrinkable member. 前記請求項1から6の何れか1項に記載のシート用変形部材を備えたシート状部材。   A sheet-like member comprising the sheet deformation member according to any one of claims 1 to 6. 加熱することにより曲がる角度、加熱するときに曲がる速度、加熱開始から曲がり始めるまでの時間の少なくとも1つが異なる複数の前記シート用変形部材を備える請求項7に記載のシート状部材。   The sheet-like member according to claim 7, comprising a plurality of the sheet deformation members having different at least one of an angle of bending by heating, a speed of bending when heating, and a time from the start of heating to the start of bending.
JP2012171686A 2012-08-02 2012-08-02 Sheet deformation member Expired - Fee Related JP6022253B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019230698A1 (en) * 2018-06-01 2019-12-05 株式会社フジシールインターナショナル Determination sheet
JP2020171455A (en) * 2019-04-10 2020-10-22 大阪シーリング印刷株式会社 Swing structure, bobblehead toy including the same and package

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05306677A (en) * 1992-04-30 1993-11-19 Ricoh Co Ltd Actuator
JP2004350906A (en) * 2003-05-29 2004-12-16 Univ Waseda Actuator consisting of sheet-shaped member and its manufacturing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05306677A (en) * 1992-04-30 1993-11-19 Ricoh Co Ltd Actuator
JP2004350906A (en) * 2003-05-29 2004-12-16 Univ Waseda Actuator consisting of sheet-shaped member and its manufacturing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019230698A1 (en) * 2018-06-01 2019-12-05 株式会社フジシールインターナショナル Determination sheet
JPWO2019230698A1 (en) * 2018-06-01 2021-08-05 株式会社フジシールインターナショナル Judgment sheet
JP7233421B2 (en) 2018-06-01 2023-03-06 株式会社フジシールインターナショナル Judgment sheet
JP2020171455A (en) * 2019-04-10 2020-10-22 大阪シーリング印刷株式会社 Swing structure, bobblehead toy including the same and package
JP7303602B2 (en) 2019-04-10 2023-07-05 大阪シーリング印刷株式会社 Oscillating structure, swinging toy and package provided with the same

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