JP3222405U - Heat shield structure of helmet - Google Patents
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- JP3222405U JP3222405U JP2019001284U JP2019001284U JP3222405U JP 3222405 U JP3222405 U JP 3222405U JP 2019001284 U JP2019001284 U JP 2019001284U JP 2019001284 U JP2019001284 U JP 2019001284U JP 3222405 U JP3222405 U JP 3222405U
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Abstract
【課題】熱中症予防に効果的なヘルメットの遮熱構造を提供する。【解決手段】アルミホイル等輻射熱に対して高反射率の素材、接着や熱溶着層、不識布や樹脂シートを順に積層した遮熱シート３を、ヘッドバンドや衝撃吸収ライナー８と帽体９の内側との間に、アルミホイル等輻射熱に対して高反射率の素材がヘルメット１の帽体９の内側に向く様に、しかもヘルメット１の帽体９の内側と遮熱シート３との間に空間２をもたせる様に取り付けた。【選択図】図１To provide a heat shield structure for a helmet that is effective for preventing heat stroke. A heat-shielding sheet 3 in which a material having high reflectivity with respect to radiant heat, such as aluminum foil, an adhesive or heat-welding layer, an unintelligible cloth, and a resin sheet are sequentially laminated, a headband, an impact-absorbing liner 8 and a cap body 9 are provided. Between the inside of the helmet body 1 and the heat shield sheet 3 so that the material having high reflectivity with respect to the radiant heat, such as aluminum foil, faces the inside of the hat body 9 of the helmet 1. It was attached so that it had space 2. [Selection] Figure 1
Description
本考案は、ヘルメットの内側に、アルミホイル等輻射熱に対して高反射率の素材を使用し、熱中症予防に効果的なヘルメットを提供するものである。 The present invention provides a helmet that is effective in preventing heat stroke by using a material having high reflectivity against radiant heat such as aluminum foil inside the helmet.
ヘルメットの内面に、アルミホイル等輻射熱に対して高反射率の素材を直貼りしたものがある。 Some helmets have a high reflectance material directly attached to the inner surface of the helmet, such as aluminum foil.
その為次のような問題があった。
太陽光がヘルメットに照射されると、気温３０℃でもヘルメット表面は６５℃以上にもなり、その熱はヘルメットの帽体を伝達し、帽体内側表面から頭部に二次輻射熱として放射される。熱中症は、気温よりはむしろこの輻射熱の影響が大きいと考えられる。
ヘルメットの帽体の内側表面から放射される輻射熱の阻止のため、ヘルメットの帽体の内側にアルミホイル等輻射熱に対して高反射率の素材を直貼りして対処しているものがある。これは、アルミホイル等輻射熱に対して高反射率の素材は、低放射率の素材でもあるからである。
これによって、気温２５℃位であればヘルメットの帽体外側は６５℃以上になっても、内側は２５〜２６℃程度の表面温度とする事が出来る。
一見涼しいように思えるが、ヘルメットには体温３６．５℃位の頭部が入る訳で、熱は熱い方から冷たい方に移動の原則に則り、頭部からヘルメットの帽体の内側に向かって輻射熱が放射される。すると、この輻射熱はアルミホイル等輻射熱に対して高反射率の素材表面で反射され、再び頭部に戻され暑さを感じる事になる。
即ち、太陽からの輻射熱は阻止したものの、頭部から放射される熱を阻止する事が出来ず、折角遮熱しても効果が低下する事になる。
本考案は、これらの問題を解決する為になされたものである。Therefore there was the following problem.
When sunlight is irradiated to the helmet, the helmet surface reaches 65 ° C or higher even at an air temperature of 30 ° C, and the heat is transmitted to the head from the inner surface of the helmet as secondary radiant heat. . Heatstroke is considered to be largely affected by this radiant heat rather than air temperature.
In order to prevent radiant heat radiated from the inner surface of the helmet cap body, there is a technique in which a highly reflective material such as aluminum foil is directly pasted on the inner side of the helmet cap body. This is because a material of high reflectivity to radiant heat such as aluminum foil is also a material of low emissivity.
By this, if the temperature is 25 ° C. or so, the outer surface of the helmet cap can have a surface temperature of about 25 to 26 ° C. even if the temperature rises above 65 ° C.
Although it seems cool at first glance, the helmet has a head with a body temperature of about 36.5 ° C, and the heat moves from the head toward the inside of the helmet body in accordance with the principle of movement from the hot side to the cold side. Radiant heat is emitted. Then, this radiant heat is reflected on the surface of the material with high reflectance to radiant heat such as aluminum foil, and it is returned to the head again to feel the heat.
That is, although the radiant heat from the sun is blocked, the heat radiated from the head can not be blocked, and the effect is reduced even when the thermal insulation is cut off.
The present invention has been made to solve these problems.
本考案は、アルミホイル等輻射熱に対して高反射率の素材、接着や熱溶着層、不織布や樹脂シート等を順に積層した遮熱シートを、ヘッドバンドや衝撃吸収ライナーと帽体の内側との間に、アルミホイル等輻射熱に対して高反射率の素材がヘルメットの帽体の内側に向く様に、しかもヘルメットの帽体の内側と遮熱シートとの間に空間を持たせる様に取り付けたヘルメットの遮熱構造である。 In the present invention, a heat shielding sheet in which a material having high reflectance to radiant heat such as aluminum foil, an adhesive or heat-welding layer, a non-woven fabric, a resin sheet, etc. is sequentially laminated, In the meantime, it was attached so that the material of high reflectivity to radiation heat such as aluminum foil turned to the inside of the helmet's cap, and that there was a space between the inside of the helmet's cap and the heat shield sheet. It is a heat shield structure of a helmet.
以下本考案を実施するための最良の形態について説明する。
本考案は、アルミホイル等輻射熱に対して高反射率の素材５、接着や熱溶着層６、不織布や樹脂シート等７を順に積層した遮熱シート３を、ヘッドバンドや衝撃吸収ライナー８と帽体９内側との間に、アルミホイル等輻射熱に対して高反射率の素材５がヘルメット１の帽体９の内側に向く様に、しかもヘルメット１の帽体９の内側と遮熱シート３との間に空間２を持たせる様に取り付けたヘルメットの遮熱構造である。The best mode for carrying out the present invention will be described below.
In the present invention, a heat-shielding sheet 3 in which a material 5 having high reflectivity to radiant heat such as aluminum foil, an adhesive or heat-welding layer 6, a non-woven fabric or a resin sheet 7 is laminated in order, a headband, an impact-absorbing liner 8 and a cap. Between the inside of the body 9, the material 5 having high reflectivity with respect to the radiant heat such as aluminum foil faces the inside of the cap body 9 of the helmet 1, and the inside of the cap body 9 of the helmet 1 and the heat shield sheet 3 Of the helmet attached so as to have a space 2 between them.
遮熱シート３は、アルミホイル等輻射熱に対して高反射率の素材５に、不織布や樹脂シート等７を接着材や熱溶着６で貼った三層構造のシートである。
又遮熱シート３は、アルミホイル等輻射熱に対して高反射率の素材５がヘルメット１の帽体９内側に向く様に、しかもヘルメット１の帽体９の内面と遮熱シー３との間に空間２が出来る様に施工する。
遮熱シート３の取り付け位置は、ヘッドバンドや衝撃吸収ライナー８の天端とヘルメット１の帽体９の内面との間である。しっかり固定する場合は、ヘッドバンドや衝撃吸収ライナー８の天端に、遮熱シート３の不織布や樹脂シート等７を両面テープやマジックテープで接着固定する事も出来る。
遮熱シート３の端面とヘルメット１側面は極力密着が好ましいが、ヘルメット１は不定形なものが多いので、遮熱シート３の形状によっては隙間が出来る場合もある。しかし、この隙間からは出入りする熱は伝導熱や対流熱なので熱量も少ないのでそれほど気にする事は無い。The heat shield sheet 3 is a sheet having a three-layer structure in which a nonwoven fabric, a resin sheet or the like 7 is attached to a material 5 having high reflectance to radiant heat such as aluminum foil with an adhesive or heat welding 6.
The heat shield sheet 3 is formed so that the material 5 having high reflectivity with respect to radiant heat, such as aluminum foil, faces the inside of the cap body 9 of the helmet 1 and between the inner surface of the cap body 9 of the helmet 1 and the heat shield sea 3. Install so that space 2 can be created.
The mounting position of the heat shield sheet 3 is between the top end of the head band or the shock absorbing liner 8 and the inner surface of the cap 9 of the helmet 1. When firmly fixed, the non-woven fabric of the heat shield sheet 3 or the resin sheet 7 can be adhered and fixed to the top end of the head band or the impact absorbing liner 8 with a double-sided tape or a velcro.
The end face of the heat shield sheet 3 and the side surface of the helmet 1 are preferably in close contact with each other as much as possible. However, since the helmet 1 has many irregular shapes, gaps may be formed depending on the shape of the heat shield sheet 3. However, the heat coming in and out from this gap is conduction heat and convective heat, so the amount of heat is small, so there is no need to worry so much.
アルミホイル等輻射熱に対して高反射率の素材５は蒸着品でもアルミ箔等でも良く、重要なのは輻射熱に対する反射率で、反射率が高いほど効果を発揮する。一般的には、反射率９５パーセント以上のものが使用されている。 The material 5 having high reflectivity with respect to radiant heat such as aluminum foil may be a vapor-deposited product or an aluminum foil. The important thing is the reflectivity with respect to radiant heat, and the higher the reflectivity, the more effective. Generally, one having a reflectance of 95% or more is used.
不織布や樹脂シート等７は、輻射熱が透過しないものが良くしかも熱を吸収する素材が好ましい。
形状は、花びら型や丸型、楕円形等様々なものが考えられるが特にこだわらない。
厚みは、通常は２〜５ミリメートル位のものが使用されている。The non-woven fabric, the resin sheet or the like 7 is preferably a material that does not transmit radiant heat and that absorbs heat.
Various shapes such as a petal shape, a round shape, and an oval shape can be considered, but there is no particular limitation.
The thickness is usually about 2 to 5 millimeters.
当該発明のメカニズムを説明する。
屋外で体温を上昇させる最も大きな要因は太陽光所謂輻射熱である。従って、暑さ対策には輻射熱を阻止する事が最も重要である。この輻射熱を最も効率的に阻止できるのはアルミホイル等輻射熱に対して高反射率の素材５である。
本考案は、ヘルメット１内部に、しかもヘルメット１内側表面との間に空間２を設けて取り付けてあり、更にアルミホイル等輻射熱に対して高反射率の素材５がヘルメット１表面側に施工されている。
太陽光がヘルメット１に照射されると、一部はヘルメット１表面で反射するが、大半はヘルメット１素材に吸収され伝導熱となる。この伝導熱は、熱は高い方から低い方に移動の法則に則り、ヘルメット１の内側表面まで移動、その多くは二次輻射熱の形態をとって頭部４に向かって放射される。
しかし、途中に遮熱シート３があり、しかもアルミホイル等輻射熱に対して高反射率の素材５がある為、ヘルメット１からの輻射熱はこのアルミホイル等輻射熱に対して高反射率の素材５で大半が反射されヘルメット１に戻されることになる。従って、遮熱シート３を通して頭部４に伝達される熱量は非常に少なくなる。
一方、遮熱シート３が体温より低い場合、頭部４の熱は遮熱シート３に向かって放射される。しかし、遮熱シート３の頭部４側には、不織布や樹脂シート等７輻射熱に対して低反射率の素材があり、頭部４からの輻射熱の大半はこれらの素材に吸収され伝導熱となり、頭部４に反射して戻される輻射熱は非常に少なくなる。
この結果、太陽から来る輻射熱、そして頭部４から放射される輻射熱をも阻止できるので、頭部４に伝達される熱量は大幅に減少し、快適な環境を生み出す事が出来る。The mechanism of the invention will be described.
The biggest factor that raises the temperature outdoors is the so-called radiant heat. Therefore, it is most important to stop radiant heat for measures against heat. The material 5 having the highest reflectivity with respect to the radiant heat, such as aluminum foil, can most effectively block this radiant heat.
In the present invention, a space 2 is provided inside the helmet 1 and between the inner surface of the helmet 1 and a material 5 of high reflectance to radiant heat such as aluminum foil is applied to the surface of the helmet 1 Yes.
When sunlight is irradiated on the helmet 1, a part of the light is reflected on the surface of the helmet 1, but most of the light is absorbed by the helmet 1 material and becomes conduction heat. This heat of conduction travels to the inner surface of the helmet 1 in accordance with the law of heat transfer from high to low, many of which are emitted towards the head 4 in the form of secondary radiation heat.
However, since there is a heat shielding sheet 3 in the middle and there is a material 5 with high reflectance to radiant heat such as aluminum foil, the radiation heat from the helmet 1 is a material 5 with high reflectance to radiant heat such as aluminum foil. Most will be reflected back to the helmet 1. Therefore, the amount of heat transferred to the head 4 through the heat shield sheet 3 is very small.
On the other hand, when the heat shield sheet 3 is lower than the body temperature, the heat of the head 4 is radiated toward the heat shield sheet 3. However, on the head 4 side of the heat shield sheet 3 there is a non-woven fabric, resin sheet or other material with low reflectance to 7 radiation heat, and most of the radiation heat from the head 4 is absorbed by these materials and becomes conduction heat. The radiant heat reflected back to the head 4 is very small.
As a result, since the radiant heat coming from the sun and the radiant heat radiated from the head 4 can also be blocked, the amount of heat transferred to the head 4 is greatly reduced, and a comfortable environment can be created.
夏場の暑さでも、快適な作業が出来る様になった。 Even in the summer heat, I can now work comfortably.
１ヘルメット
２空間
３遮熱シート
４頭部
５アルミホイル等輻射熱に対して高反射率の素材
６接着層
７不織布や樹脂シート等
８ヘッドバンドや衝撃吸収ライナー
９帽体1 helmet 2 space 3 heat shield sheet 4 head 5 material with high reflectance to radiant heat such as aluminum foil 6 adhesive layer 7 non-woven fabric or resin sheet 8 head band or shock absorbing liner 9 cap body
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019001284U JP3222405U (en) | 2019-03-22 | 2019-03-22 | Heat shield structure of helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019001284U JP3222405U (en) | 2019-03-22 | 2019-03-22 | Heat shield structure of helmet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3222405U true JP3222405U (en) | 2019-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019001284U Active JP3222405U (en) | 2019-03-22 | 2019-03-22 | Heat shield structure of helmet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3222405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021055236A (en) * | 2019-10-02 | 2021-04-08 | 株式会社アムズ | Heat shield |
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2019
- 2019-03-22 JP JP2019001284U patent/JP3222405U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021055236A (en) * | 2019-10-02 | 2021-04-08 | 株式会社アムズ | Heat shield |
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