JPH01124988A - Formation of planar heater - Google Patents
Formation of planar heaterInfo
- Publication number
- JPH01124988A JPH01124988A JP28282587A JP28282587A JPH01124988A JP H01124988 A JPH01124988 A JP H01124988A JP 28282587 A JP28282587 A JP 28282587A JP 28282587 A JP28282587 A JP 28282587A JP H01124988 A JPH01124988 A JP H01124988A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- heating
- die
- mold
- raw element
- 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
- 230000015572 biosynthetic process Effects 0.000 title 1
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 57
- 239000000057 synthetic resin Substances 0.000 claims abstract description 57
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 21
- 239000004917 carbon fiber Substances 0.000 claims abstract description 21
- 239000012778 molding material Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229920001169 thermoplastic Polymers 0.000 claims description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 26
- 229920001187 thermosetting polymer Polymers 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 13
- 238000000465 moulding Methods 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 206010014357 Electric shock Diseases 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
Landscapes
- Resistance Heating (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Surface Heating Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は暖房便座、パネルヒータ等、面状ヒータの成
形法に関し、その目的は発熱素材である炭素繊維等を面
状ヒータ内に片寄りなく配設でき、また面状ヒータの本
体を構成する合成樹脂成形材料を溶融状態で金型内に注
入する注入ノズルの詰まりを防止できる面状ヒータの成
形法を提供することにある。[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a method for forming sheet heaters such as heated toilet seats and panel heaters, and its purpose is to skew heat-generating materials such as carbon fibers into the sheet heater. It is an object of the present invention to provide a method for molding a planar heater, which can be disposed without any problems, and which can prevent clogging of an injection nozzle for injecting a molten synthetic resin molding material constituting the main body of the planar heater into a mold.
（従来技術及びその問題点）
従来、板状合成樹脂成形体中に炭素繊維等の発熱素材を
埋設した面状ヒータを成形するには、射出成形法が代表
的であり、この射出成形法では予め噛合された金型内に
炭素繊維等を混入した熱溶融状態の合成樹脂成形材料を
射出することにより成形が行われている。(Prior art and its problems) Conventionally, injection molding is a typical method for molding a planar heater in which a heat generating material such as carbon fiber is embedded in a plate-shaped synthetic resin molded body. Molding is performed by injecting a molten synthetic resin molding material mixed with carbon fiber etc. into molds that are meshed together in advance.
しかし、この射出成形法では金型の射出ノズルから狭い
金型内に熱溶融状態の合成樹脂成形材料を充満させる必
要上、射出ノズルの径を小さくせねばならず、合成樹脂
成形材料中に炭素繊維等が混入されていることにより、
射出ノズルが詰まり易（なる。However, in this injection molding method, it is necessary to fill the narrow mold with the synthetic resin molding material in a hot molten state from the injection nozzle of the mold, so the diameter of the injection nozzle must be made small. Due to the inclusion of fibers, etc.
The injection nozzle is easily clogged.
一方、射出成形法において、予め金型内に炭素繊維等を
予め投入しておき、射出ノズルから合成樹脂材料を射出
することも考えられるが、射出圧で炭素繊維等が一個所
に片寄り、板状合成樹脂成形体中に炭素繊維等を均一に
配設することができなかった。On the other hand, in the injection molding method, it is possible to put carbon fibers etc. into the mold in advance and inject the synthetic resin material from the injection nozzle, but the injection pressure causes the carbon fibers etc. to be concentrated in one place. It was not possible to uniformly arrange carbon fibers, etc. in a plate-shaped synthetic resin molded body.
（問題を解決するための手段）
この発明では可撓性を有する熱可塑性の合成樹脂チュー
ブ内に炭素繊維及び／又は炭素粉末を相互に隙間を保持
して充填して発熱線材を形成し、この発熱線材を金型内
に配置し、この金型内に熱可塑性の合成樹脂成形材料を
熱□溶融状態で注入ノズルから注入しながら金型を噛合
させ、この合成樹脂成形材料から成形される板状合成樹
脂成形体中に前記発熱線材を一体に埋設することを特徴
とする面状ヒータの成形法を提出することにより上記問
題点を解決する。(Means for solving the problem) In the present invention, a heating wire is formed by filling a flexible thermoplastic synthetic resin tube with carbon fibers and/or carbon powder while keeping a gap between them. A heating wire is placed in a mold, and a thermoplastic synthetic resin molding material is injected into the mold in a hot molten state from an injection nozzle while the molds are engaged, and a plate is molded from this synthetic resin molding material. The above-mentioned problems are solved by presenting a method for molding a planar heater, characterized in that the heating wire is integrally embedded in a synthetic resin molded body.
（実施例）
この発明の実施例に係る暖房便座の成形法を図面にもと
づいて説明する。(Example) A method of forming a heated toilet seat according to an example of the present invention will be described based on the drawings.
第１図（Ａ）乃至（Ｄ）は暖房便座の成形法を工程順に
示したものである。FIGS. 1A to 1D show a method of forming a heated toilet seat in the order of steps.
第１図（Ａ）に示すように、発熱線材（１）を金型（２
）の下型（３）内に配置する。As shown in Figure 1 (A), the heating wire (1) is placed in the mold (2).
) in the lower mold (3).
発熱線材（１）の配置は必ずしも下型（３）内である必
要はなく、上型（４）に仮止めしたり、或いは上型（４
）と下型（３）との間に張架しておいても成形は可能で
ある。The heating wire (1) does not necessarily have to be placed inside the lower mold (3), but may be temporarily fixed to the upper mold (4) or placed inside the upper mold (4).
) and the lower mold (3).
発熱線材（１）は可撓性を有する熱可塑性の合成樹脂チ
ューブ（５）内に炭素繊維（６）を相互に隙間を保持し
て充填して形成している。The heating wire (1) is formed by filling a flexible thermoplastic synthetic resin tube (5) with carbon fibers (6) with gaps maintained between them.
合成樹脂チューブ（５）にはＡＢＳ樹脂（アクリロニト
リル−ブタジェン−スチレン共重合樹脂）、ポリスチレ
ン樹脂、ポリエステル樹脂等の熱可塑性樹脂が好適に使
用される。Thermoplastic resins such as ABS resin (acrylonitrile-butadiene-styrene copolymer resin), polystyrene resin, polyester resin, etc. are preferably used for the synthetic resin tube (5).
炭素繊維（６）としては長形（５〜２０ｍ１）、矩形（
５ｍ未満）のいずれの形状でもよく、ピッチ系、ポリア
クリロニトリル系のいずれもが好適に用いられる。The carbon fiber (6) is long (5 to 20 m1), rectangular (
It may be of any shape (less than 5 m), and both pitch-based and polyacrylonitrile-based materials are preferably used.
発熱素材には第２図（Ａ）に示すように、炭素繊維（６
）に代えて炭素粉末（７）を用いることもでき、第２図
（Ｂ）に示すように炭素繊維（６）と炭素粉末（７）を
混合したものを用いることもできる。As shown in Figure 2 (A), the heat generating material is carbon fiber (6
) Instead of carbon powder (7), a mixture of carbon fiber (6) and carbon powder (7) may be used as shown in FIG. 2(B).
次に、第１図（Ｂ）に示すように下型（３）内に合成樹
脂成形材料（１０）を熱溶融状態で注入ノズル（１））
から注入しながら、第１図（Ｃ）に示すように下型（３
）とシャーエツジ付の上型（１２）とを噛合させ、その
圧力で流動状態の合成樹脂成形材料（１０）を金型（２
）内の隅々まで押し広げる。Next, as shown in Fig. 1 (B), the synthetic resin molding material (10) is injected into the lower mold (3) in a hot molten state through the nozzle (1)).
While pouring from the lower mold (3) as shown in Figure 1(C),
) and the upper mold (12) with a shear edge are engaged, and the pressure causes the synthetic resin molding material (10) in a fluid state to be forced into the mold (2).
) to every corner.
合成樹脂成形材料（１０）としては、前記合成樹脂チュ
ーブ（５）と同一素材のものを用いるのが望ましい。As the synthetic resin molding material (10), it is desirable to use the same material as the synthetic resin tube (5).
次に、第１図（Ｄ）に示すように、上型（４）を下型（
３）から分離し、下型（３）内の成形された暖房便座（
８）を取出す。Next, as shown in FIG. 1(D), the upper mold (4) is replaced with the lower mold (
3) and molded heated toilet seat (
8) Take out.
暖房便座（８）は平面から見て第３図に示す通りであり
、第１図（Ｄ）に示すように板状合成樹脂成形体（９）
中に発熱線材（１）が一体に埋設される。The heated toilet seat (8) is as shown in Fig. 3 when viewed from above, and as shown in Fig. 1 (D), the plate-shaped synthetic resin molded body (9)
A heating wire (1) is integrally buried inside.
尚、発熱線材（１）は板状合成樹脂成形体（９）中では
なく、板状合成樹脂成形体（９）表面において埋設され
るようにしてもよい。Note that the heating wire (1) may be embedded not in the plate-shaped synthetic resin molded body (9) but on the surface of the plate-shaped synthetic resin molded body (9).
このような成形法では、炭素繊維（６）等の発熱素材が
合成樹脂チェープ（５）内に充填されているので、合成
樹脂成形材料（１０）に発熱素材を混入する必要がなく
、注入ノズル（１））を詰まらせることかない。In such a molding method, a heat-generating material such as carbon fiber (6) is filled into the synthetic resin chain (5), so there is no need to mix the heat-generating material into the synthetic resin molding material (10), and the injection nozzle (1)) will not be clogged.
また、このような成形法で得られた暖房便座（８）は、
発熱素材が合成樹脂チューブ（５）内に充填されている
ので、金型（２）内に合成樹脂成形材料（１０）を注入
する際に炭素繊維（６）等の発熱素材が流動圧で片寄る
ことはなく、必要個所に発熱素材を必要量のみ集約化し
て配設でき、発熱素材の使用量並びに暖房に要する電力
を削減できる。In addition, the heated toilet seat (8) obtained by such a molding method is
Since the heat generating material is filled in the synthetic resin tube (5), when the synthetic resin molding material (10) is injected into the mold (2), the heat generating material such as carbon fiber (6) is biased due to fluid pressure. Instead, only the required amount of heat-generating materials can be placed in the necessary locations, reducing the amount of heat-generating materials used and the power required for heating.
更に、合成樹脂成形材料（１０）と合成樹脂チューブ（
５）とがいずれも熱可塑性樹脂であるから、金型（２）
内に熱溶融状態の合成樹脂成形材料（１０）を注入した
際に、合成樹脂チューブ（５）の表面と合成樹脂成形材
料（ｌＯ）とが熱融着状態で一体的に接着され、炭素繊
維（６）等の発熱素材で発生された熱が合成樹脂チュー
ブ（５）を介して板状合成樹脂成形体（９）に有効に熱
伝導される。Furthermore, a synthetic resin molding material (10) and a synthetic resin tube (
Since mold (5) and are both thermoplastic resins, mold (2)
When the synthetic resin molding material (10) in a hot molten state is injected into the tube, the surface of the synthetic resin tube (5) and the synthetic resin molding material (lO) are integrally bonded in a heat fused state, and the carbon fibers are bonded together. Heat generated by the heat generating material such as (6) is effectively conducted to the plate-shaped synthetic resin molded body (9) via the synthetic resin tube (5).
また、炭素繊維等の発熱素材が合成樹脂チューブ（５）
内に充填されているので、板状合成樹脂成形体（９）に
ひび割れが生じても、合成樹脂チューブ（５）が露出す
るのみで、発熱素材は露出せず感電の恐れはない。In addition, heat-generating materials such as carbon fiber are used in synthetic resin tubes (5).
Since the plate-shaped synthetic resin molded body (9) is filled with cracks, only the synthetic resin tube (5) is exposed, and the heat generating material is not exposed, so there is no risk of electric shock.
（発明の効果）
この発明は可撓性を有する熱可塑性の合成樹脂チューブ
内に炭素繊維及び／又は炭素粉末を相互に隙間を保持し
て充填して発熱線材を形成し、この発熱線材を金型内に
配置し、この金型内に熱可塑性の合成樹脂成形材料を熱
溶融状態で注入ノズルから注入しながら金型を噛合させ
、この合成樹脂成形材料から成形される板状合成樹脂成
形体中に前記発熱線材を一体に埋設することを特徴とす
る面状ヒータの成形法であるから以下の効果を奏する。(Effects of the Invention) This invention forms a heating wire by filling a flexible thermoplastic synthetic resin tube with carbon fibers and/or carbon powder while maintaining a gap between them, and then molding the heating wire into a metal. A plate-shaped synthetic resin molded body that is placed in a mold, and is molded from the synthetic resin molding material by injecting a thermoplastic synthetic resin molding material in a hot molten state into the mold from an injection nozzle and engaging the molds. This method of forming a sheet heater is characterized in that the heating wire is integrally buried therein, so that the following effects can be achieved.
すなわち、合成樹脂成形材料中に発熱素材を混入する必
要がないので、注入ノズルを詰まらせることがない。That is, since there is no need to mix a heat-generating material into the synthetic resin molding material, the injection nozzle will not be clogged.
また、発熱素材が合成樹脂チューブ内に充填されている
ので、金型内に合成樹脂成形材料を注入する際に発熱素
材が流動圧で片寄ることはなく、必要個所に発熱素材を
必要量のみ集約化して配設でき、発熱素材の使用量並び
に暖房に要する電力を削減できる。In addition, since the heat-generating material is filled in the synthetic resin tube, the heat-generating material does not shift due to the flow pressure when the synthetic resin molding material is injected into the mold, and only the necessary amount of heat-generating material is concentrated in the necessary locations. This reduces the amount of heat-generating materials used and the electricity required for heating.
更に、共に熱可塑性樹脂である合成樹脂チｊ−一プの表
面と合成樹脂成形材料とが熱融着状態で一体的に接着さ
れ、炭素繊維等の発ｖ！！素材で発生された熱が合成樹
脂チューブを介して合成樹脂成形体に有効に熱伝導され
、暖房効率が向上する。Furthermore, the surface of the synthetic resin chip J-1, both of which are thermoplastic resins, and the synthetic resin molding material are integrally bonded together in a thermally fused state, and carbon fibers, etc. are produced! ! Heat generated in the material is effectively conducted to the synthetic resin molded body through the synthetic resin tube, improving heating efficiency.
また、合成樹脂成形体にひび割れが生じても、合成樹脂
チューブが露出するのみで、発熱素材は露出せず、感電
の恐れがなく、安全性が高まる。Moreover, even if a crack occurs in the synthetic resin molded body, only the synthetic resin tube is exposed, and the heat generating material is not exposed, so there is no risk of electric shock, and safety is increased.
第１図（Ａ）乃至（Ｄ）はこの発明の一実施例に係る暖
房便座の成形法を示す工程図、第２図（Ａ） ・（Ｂ
）は発熱線材の他の構造を説明する縦断面図、第３図は
この成形法で得られた暖房便座の平面図である。
（１）・・・発熱線材 （２）・・・金 型（
５）・・・合成樹脂チヘープ （６）・・・炭素繊維（
７）・・・炭素粉末
（９）・・・板状合成樹脂成形体
（１０）・・・合成樹脂成形材料 （１））・・・注入
ノズル（Ｂ） （Ｄ）Figures 1 (A) to (D) are process diagrams showing a method of forming a heated toilet seat according to an embodiment of the present invention, and Figures 2 (A) and (B).
) is a longitudinal sectional view illustrating another structure of the heating wire, and FIG. 3 is a plan view of a heated toilet seat obtained by this molding method. (1)...Heating wire (2)...Mold (
5)...Synthetic resin Chihepe (6)...Carbon fiber (
7) Carbon powder (9) Plate-shaped synthetic resin molded body (10) Synthetic resin molding material (1)) Injection nozzle (B) (D)
Claims (1)
炭素繊維及び／又は炭素粉末を相互に隙間を保持して充
填して発熱線材を形成し、この発熱線材を金型内に配置
し、この金型内に熱可塑性の合成樹脂成形材料を熱溶融
状態で注入ノズルから注入しながら金型を噛合させ、こ
の合成樹脂成形材料から成形される板状合成樹脂成形体
中に前記発熱線材を一体に埋設することを特徴とする面
状ヒータの成形法。(1) A flexible thermoplastic synthetic resin tube is filled with carbon fibers and/or carbon powder while maintaining a gap between them to form a heating wire, and this heating wire is placed in a mold. , The molds are engaged with each other while injecting a thermoplastic synthetic resin molding material in a hot molten state from an injection nozzle into this mold, and the heating wire is inserted into a plate-shaped synthetic resin molded body molded from this synthetic resin molding material. A method for forming a planar heater characterized by integrally embedding the heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28282587A JPH01124988A (en) | 1987-11-09 | 1987-11-09 | Formation of planar heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28282587A JPH01124988A (en) | 1987-11-09 | 1987-11-09 | Formation of planar heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01124988A true JPH01124988A (en) | 1989-05-17 |
| JPH0366798B2 JPH0366798B2 (en) | 1991-10-18 |
Family
ID=17657570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28282587A Granted JPH01124988A (en) | 1987-11-09 | 1987-11-09 | Formation of planar heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124988A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03236187A (en) * | 1990-02-09 | 1991-10-22 | Hosokawa Seisakusho:Kk | Planar heater molding |
| JPH10193380A (en) * | 1997-01-14 | 1998-07-28 | Asahi Chem Ind Co Ltd | Heat-generating molding of thermoplastic resin |
| EP2657616A2 (en) | 2012-03-08 | 2013-10-30 | Anguiano Poliuretanos, S.L. | Decorative radiator with integrated water circuit |
-
1987
- 1987-11-09 JP JP28282587A patent/JPH01124988A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03236187A (en) * | 1990-02-09 | 1991-10-22 | Hosokawa Seisakusho:Kk | Planar heater molding |
| JPH10193380A (en) * | 1997-01-14 | 1998-07-28 | Asahi Chem Ind Co Ltd | Heat-generating molding of thermoplastic resin |
| EP2657616A2 (en) | 2012-03-08 | 2013-10-30 | Anguiano Poliuretanos, S.L. | Decorative radiator with integrated water circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0366798B2 (en) | 1991-10-18 |
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