JPH0366798B2 - - Google Patents
Info
- Publication number
- JPH0366798B2 JPH0366798B2 JP28282587A JP28282587A JPH0366798B2 JP H0366798 B2 JPH0366798 B2 JP H0366798B2 JP 28282587 A JP28282587 A JP 28282587A JP 28282587 A JP28282587 A JP 28282587A JP H0366798 B2 JPH0366798 B2 JP H0366798B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- mold
- heating wire
- molding material
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 54
- 239000000057 synthetic resin Substances 0.000 claims description 54
- 239000012778 molding material Substances 0.000 claims description 22
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 20
- 239000004917 carbon fiber Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 229920001169 thermoplastic Polymers 0.000 claims description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 description 21
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 11
- 238000000465 moulding Methods 0.000 description 9
- 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
- 230000004927 fusion Effects 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
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
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、その射出成形法では金型の射出ノズル
から狭い金型内に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
くなる。 However, in this injection molding method, it is necessary to fill the narrow mold with molten synthetic resin molding material from the injection nozzle of the mold, so the diameter of the injection nozzle must be made small, and carbon fibers are contained in the synthetic resin molding material. etc., the injection nozzle is likely to become 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
なかつた。 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 and the like in the 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
脂チユ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 maintaining a gap between them.
This 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 formed 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 for 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 FIG. 1A, the heating wire 1 is placed in the lower mold 3 of the mold 2. As shown in FIG.
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 need 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.
Molding is possible even if the mold is stretched between the mold 3 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
脂チユーブ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.
合成樹脂チユーブ５にはABS樹脂（アクリロ
ニトリルーブタジエン−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。 Synthetic resin tube 5 is made of ABS resin (acrylonitrile-butadiene-styrene copolymer resin),
Thermoplastic resins such as polystyrene resin and polyester resin are preferably used.
炭素繊維６としては長形（５〜20mm）、短形
（５mm未満）のいずれの形状でもよく、ピツチ系、
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 may be either long (5 to 20 mm) or short (less than 5 mm), and may be pitch type,
Any polyacrylonitrile type is suitably 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を用いることができ、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 FIG. 2A, carbon powder 7 can be used as the heat generating material instead of carbon fiber 6.
As shown in Figure B, a mixture of carbon fiber 6 and carbon powder 7 can also be used.
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１１か
ら注入しながら、第１図Ｃに示すように下型３と
シヤーエツジ付の上型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. 1B, while injecting the synthetic resin molding material 10 in a hot molten state into the lower mold 3 from the injection nozzle 11, as shown in FIG. The mold 12 is engaged with the mold 12, and the fluidized synthetic resin molding material 10 is spread to every corner within the mold 2 by the pressure.
合成樹脂成形材料１０としては、前記合成樹脂
チユーブ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.
The molded heated toilet seat 8 inside the lower mold 3 is taken 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. 1D, the heating wire 1 is embedded integrally in a plate-shaped synthetic resin molded body 9.
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
材が合成樹脂チユーブ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１１を詰まらせることが
ない。 In such a molding method, a heat-generating material such as carbon fiber 6 is filled into the synthetic resin tube 5, so there is no need to mix the heat-generating material into the synthetic resin molding material 10, and the injection nozzle 11 is not clogged. do not have.
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ユーブ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, heated toilet seat 8 obtained by such a molding method
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 the carbon fiber 6 will not be biased due to the fluid pressure, and it will not be placed in the necessary places. It is possible to centralize and arrange only the necessary amount of heat-generating materials, reducing the amount of heat-generating materials used and the electricity required for heating.
更に、合成樹脂成形材料１０と合成樹脂チユー
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、合成樹脂チユーブ５の表面と合成樹脂
成形材料１０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
成樹脂チユーブ５を介して板状合成樹脂成形体９
に有効な熱伝導される。 Furthermore, since the synthetic resin molding material 10 and the synthetic resin tube 5 are both thermoplastic resins, when the synthetic resin molding material 10 in a hot molten state is injected into the mold 2, the surface of the synthetic resin tube 5 and The synthetic resin molding material 10 is integrally bonded with heat fusion, and the heat generated by the heat generating material such as carbon fiber 6 is transferred to the plate-like synthetic resin molded body 9 through the synthetic resin tube 5.
effective heat conduction.
また、炭素繊維等の発熱素材が合成樹脂チユー
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、合成樹脂チユーブ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。 Furthermore, since the synthetic resin tube 5 is filled with a heat-generating material such as carbon fiber, even if the plate-shaped synthetic resin molded body 9 cracks, the synthetic resin tube 5
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
チユ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
脂成形材料から形成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 tube. A plate-shaped synthetic resin molded body is formed from the synthetic resin molding material by placing it in a mold and injecting a thermoplastic synthetic resin molding material in a hot molten state from an injection nozzle into the mold while 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.
すわなち、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, there is no possibility of clogging the injection nozzle.
また、発熱素材が合成樹脂チユーブ内に充填さ
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 will not shift due to fluid pressure when the synthetic resin molding material is injected into the mold.
Only the necessary amount of heat-generating materials can be centrally placed in the necessary locations, reducing the amount of heat-generating materials used and the power required for heating.
更に、共に熱可塑性樹脂である合成樹脂チユー
ブの表面と合成樹脂成形材料とが熱融着状態で一
体的に融着され、炭素繊維等の発熱素材で発生さ
れた熱が合成樹脂チユ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 tube, both made of thermoplastic resin, and the synthetic resin molding material are integrally fused in a thermally fused state, and the heat generated by the heat generating material such as carbon fiber is transferred through the synthetic resin tube. Heat is effectively conducted to the synthetic resin molded body, improving heating efficiency.
また、合成樹脂成形体にひび割れが生じても、
合成樹脂チユ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。 In addition, even if cracks occur in the synthetic resin molded product,
Only the synthetic resin tube is exposed, and the heat-generating material is not exposed, eliminating the risk of electric shock and increasing safety.
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
チユーブ、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、１１……注入ノズル。
FIGS. 1A to D are process diagrams showing a method for forming a heated toilet seat according to an embodiment of the present invention, FIGS. 2A and B are longitudinal sectional views illustrating another structure of the heating wire, and FIG. FIG. 2 is a plan view of a heated toilet seat obtained by a molding method. DESCRIPTION OF SYMBOLS 1... Heating wire, 2... Mold, 5... Synthetic resin tube, 6... Carbon fiber, 7... Carbon powder, 9
... Plate-shaped synthetic resin molded body, 10 ... Synthetic resin molding material, 11 ... Injection nozzle.
Claims (1)
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。1 Fill a flexible thermoplastic synthetic resin tube with carbon fibers and/or carbon powder while maintaining a gap between them to form a heating wire, place this heating wire in a mold, and 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 the mold, and the heating wire is integrated into a plate-shaped synthetic resin molded body formed from this synthetic resin molding material. A method for forming a planar heater, characterized by embedding it in.
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 JPH01124988A (en) | 1989-05-17 |
| JPH0366798B2 true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0815111B2 (en) * | 1990-02-09 | 1996-02-14 | 株式会社細川製作所 | Manufacturing method of sheet heater |
| JP3714751B2 (en) * | 1997-01-14 | 2005-11-09 | 旭化成ケミカルズ株式会社 | Thermoplastic resin exothermic molded product |
| ES2383865B2 (en) | 2012-03-08 | 2012-11-06 | Anguiano Poliuretanos, S.L. | Decorative radiator with integrated water circuit |
-
1987
- 1987-11-09 JP JP28282587A patent/JPH01124988A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01124988A (en) | 1989-05-17 |
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