JPS6342393B2 - - Google Patents
Info
- Publication number
- JPS6342393B2 JPS6342393B2 JP234880A JP234880A JPS6342393B2 JP S6342393 B2 JPS6342393 B2 JP S6342393B2 JP 234880 A JP234880 A JP 234880A JP 234880 A JP234880 A JP 234880A JP S6342393 B2 JPS6342393 B2 JP S6342393B2
- Authority
- JP
- Japan
- Prior art keywords
- snow melting
- linear heater
- plate
- reinforced plastic
- melting device
- 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
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 239000002990 reinforced plastic Substances 0.000 claims description 11
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009787 hand lay-up Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Surface Heating Bodies (AREA)
- Details Of Aerials (AREA)
Description
【発明の詳細な説明】
この発明は強化プラスチツク製品の融雪装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a snow melting device for reinforced plastic products.
従来、空中線などの金属製品における融雪装置
は、第１図に示すように、金属板１の裏面に線状
ヒーター２、または各種ヒーターを貼り付け、か
つ熱効率をよくするため、さらに断熱材３にて覆
つて構成していた。ところが、例えば強化プラス
チツク製アンテナ反射鏡などで融雪する場合、表
面にヒーターを取付けることはできず、また裏面
にヒーターを取付けることは熱効率を下げること
になる。 Conventionally, snow melting devices for metal products such as aerials have a linear heater 2 or various types of heaters pasted on the back side of a metal plate 1, and a heat insulating material 3 is added to improve thermal efficiency, as shown in Fig. 1. It was constructed by covering it. However, when melting snow using a reinforced plastic antenna reflector, for example, it is not possible to attach a heater to the front surface, and attaching a heater to the back surface reduces thermal efficiency.
この発明の目的は、強化プラスチツクスの製品
の内部に線状ヒーターを入れることにより、これ
らの欠点を除去し、簡単に製造でき、融雪効率を
上げた融雪装置を提供することにある。 An object of the present invention is to eliminate these drawbacks by incorporating a linear heater inside a reinforced plastic product, and to provide a snow melting device that is easy to manufacture and has improved snow melting efficiency.
以下図面によりこの発明を詳細に説明する。 The present invention will be explained in detail below with reference to the drawings.
強化プラスチツクスの成形には種々の方法があ
るが、レジンインジエクシヨン法による線状ヒー
ター２入り融雪装置について第２図ａ〜ｄの工程
図により説明する。まず、第２図ａに示すよう
に、成形用下型４の上にガラス繊維６を置く、次
に第２図ｂに示すように、あらかじめ強化プラス
チツクス板７や他の板状のものに取付けられた線
状ヒーター２をヒーターが融雪表面側にくる状態
で配置する。この時にガラス繊維６の厚さを変化
させることによつて融雪表面からの位置が決ま
り、線状ヒーター１を働かせた時の融雪表面の温
度が決まるので、熱効率を上げるために可能な限
りガラス繊維６は薄くする必要がある。この線状
ヒーター２取付けの上に、第２図ｃに示すよう
に、断熱材としても作用するガラス繊維８を置
く。さらに、第２図ｄに示すように、成形用上型
５を重ね、注入口９から樹脂を充填し、養生後脱
型して成形品を得ることができる。前述した第１
図の従来の融雪装置においては、線状ヒーター２
の熱は金属板１を通過してから反射鏡表面（図
中、上側）へ達するので、金属板１によつて温度
降下が発生し、反射鏡表面への熱量が減少するた
めに、融雪装置としての熱効率が良くない。ま
た、強化プラスチツク板を使つて、このプラスチ
ツク板の裏面に線状ヒーターを貼り付けた従来の
反射鏡は、金属板の熱伝導率よりもプラスチツク
の熱伝導率の方が低いため、更に熱効率は悪い。
これに対し、第２図に示した本発明の融雪装置
は、線状ヒーター２を融雪すべき反射鏡面（図
中、下側）に十分近接して埋め込む構造となつて
いるので、上述の従来のものに比べて熱効率が非
常に良い。 Although there are various methods for molding reinforced plastics, a snow melting device containing two linear heaters using the resin injection method will be explained with reference to the process diagrams of FIGS. 2a to 2d. First, as shown in FIG. 2a, the glass fiber 6 is placed on the lower mold 4. Next, as shown in FIG. The attached linear heater 2 is placed in a state where the heater is on the snow melting surface side. At this time, by changing the thickness of the glass fiber 6, the position from the snow melting surface is determined, and the temperature of the snow melting surface when the linear heater 1 is activated is determined. 6 needs to be made thinner. On top of the linear heater 2, as shown in FIG. 2c, a glass fiber 8 is placed which also acts as a heat insulator. Further, as shown in FIG. 2d, the upper mold 5 for molding is stacked, resin is filled through the injection port 9, and the mold is removed after curing to obtain a molded product. The first mentioned above
In the conventional snow melting device shown in the figure, the linear heater 2
The heat passes through the metal plate 1 and reaches the reflector surface (upper side in the figure), so the metal plate 1 causes a temperature drop and the amount of heat to the reflector surface decreases. Thermal efficiency is not good. In addition, conventional reflectors that use a reinforced plastic plate and have a linear heater attached to the back of the plastic plate have a lower thermal efficiency because the thermal conductivity of the plastic is lower than that of the metal plate. bad.
On the other hand, the snow melting device of the present invention shown in FIG. Thermal efficiency is much better than that of
第３図ａ〜ｃは、本発明の他の実施例のハンド
レイアツプで成形する場合の工程図である。第３
図ａに示すように、型１０の上にガラス繊維に樹
脂浸透させ、強化プラスチツクスの層１１を成形
し、この強化前に線状ヒーター２を、第３図ｂに
示すように置き、第３図ｃに示すように線状ヒー
ター２の上に強化プラスチツクの層１２を成形す
る。 3a to 3c are process diagrams for molding by hand lay-up according to another embodiment of the present invention. Third
As shown in Figure 3a, a reinforcing plastic layer 11 is formed on the mold 10 by infiltrating the glass fibers with resin.Before this reinforcement, a linear heater 2 is placed as shown in Figure 3b. A layer 12 of reinforced plastic is molded over the linear heater 2 as shown in Figure 3c.
以上説明のように、線状ヒーターは強化プラス
チツクス断面の任意の位置に置くことができるの
で任意の条件のものを成形できる。また、成形板
の裏側はそれ自身で断熱材として働き、実用的な
融雪を可能とする。さらに、断熱効率を上げるた
め、第４図に示すように、発泡ウレタン１３やバ
ルサ材等の断熱材を強化プラスチツク層１４では
さむことにより熱効率を高めるだけでなく機械的
強度を上げることもできる。 As explained above, since the linear heater can be placed at any position on the cross section of the reinforced plastic, it can be molded under any desired conditions. In addition, the back side of the molded plate itself acts as an insulator, making practical snow melting possible. Furthermore, in order to increase the heat insulation efficiency, as shown in FIG. 4, by sandwiching a heat insulating material such as urethane foam 13 or balsa wood between reinforced plastic layers 14, not only the thermal efficiency but also the mechanical strength can be increased.
第１図は従来の成形品の断面図、第２図ａ〜ｄ
は本発明の第１の実施例の製造工程図、第３図ａ
〜ｃは本発明の第２の実施例の製造工程図、第４
図は本発明の実施例の使用法を示す断面図であ
る。図において、
１……金属板、２……線状ヒーター、３……断
熱材、４……成形用下型、５……成形用上型、
６，８……ガラス繊維、７……線状ヒーターを取
付るための板状の物、９……樹脂注入口、１０…
…型、１１，１２，１４……強化プラスチツクス
層、１３……発泡ウレタンである。
Figure 1 is a cross-sectional view of a conventional molded product, Figures 2 a to d
Figure 3a is a manufacturing process diagram of the first embodiment of the present invention.
~c is a manufacturing process diagram of the second embodiment of the present invention, the fourth
The figure is a cross-sectional view illustrating the use of an embodiment of the invention. In the figure, 1...metal plate, 2...linear heater, 3...insulating material, 4...lower mold for molding, 5...upper mold for molding,
6, 8...Glass fiber, 7...Plate-shaped object for attaching a linear heater, 9...Resin injection port, 10...
... Mold, 11, 12, 14... Reinforced plastic layer, 13... Urethane foam.
Claims (1)
いて、前記板状部材を強化プラスチツクとし、前
記強化プラスチツクを板状に成形する際、ガラス
繊維を埋め込むとともに、線状ヒーターをこの線
状ヒーターが前記板状部材の融雪すべき面に効率
よく熱を伝えるように前記融雪すべき面に近接し
て埋め込むことを特徴とする線状ヒーター入り融
雪装置。1. In a snow melting device for a plate-shaped member such as an antenna reflector, the plate-shaped member is made of reinforced plastic, and when the reinforced plastic is formed into a plate shape, glass fiber is embedded and the linear heater is A snow melting device including a linear heater, characterized in that the snow melting device includes a linear heater embedded in the plate-like member in close proximity to the surface to be melted so as to efficiently transfer heat to the surface to be melted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP234880A JPS5699991A (en) | 1980-01-11 | 1980-01-11 | Snow melting device with linear heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP234880A JPS5699991A (en) | 1980-01-11 | 1980-01-11 | Snow melting device with linear heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5699991A JPS5699991A (en) | 1981-08-11 |
| JPS6342393B2 true JPS6342393B2 (en) | 1988-08-23 |
Family
ID=11526767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP234880A Granted JPS5699991A (en) | 1980-01-11 | 1980-01-11 | Snow melting device with linear heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5699991A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0662989U (en) * | 1993-02-22 | 1994-09-06 | 行夫 籠宮 | Device for collecting lint of washing machines |
| CN103855457A (en) * | 2012-12-06 | 2014-06-11 | 古野电气株式会社 | Radar antenna heating device and radar antenna |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59203A (en) * | 1982-06-25 | 1984-01-05 | Nec Corp | Motor-driven expansion antenna provided with antifreezing device |
-
1980
- 1980-01-11 JP JP234880A patent/JPS5699991A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0662989U (en) * | 1993-02-22 | 1994-09-06 | 行夫 籠宮 | Device for collecting lint of washing machines |
| CN103855457A (en) * | 2012-12-06 | 2014-06-11 | 古野电气株式会社 | Radar antenna heating device and radar antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5699991A (en) | 1981-08-11 |
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