JPH0444570B2 - - Google Patents
Info
- Publication number
- JPH0444570B2 JPH0444570B2 JP24140484A JP24140484A JPH0444570B2 JP H0444570 B2 JPH0444570 B2 JP H0444570B2 JP 24140484 A JP24140484 A JP 24140484A JP 24140484 A JP24140484 A JP 24140484A JP H0444570 B2 JPH0444570 B2 JP H0444570B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- vibration damping
- mica
- adhesive layer
- bituminous
- 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
- 238000013016 damping Methods 0.000 claims description 41
- 239000012943 hotmelt Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 9
- 239000010426 asphalt Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 239000010445 mica Substances 0.000 description 18
- 229910052618 mica group Inorganic materials 0.000 description 18
- 239000012790 adhesive layer Substances 0.000 description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- -1 polyethylene Polymers 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Vibration Prevention Devices (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、車両用制振シートに関し、詳しく
はたとえば振動や騒音の防止のために自動車の床
面やドア面に貼着される車両用制振シートの改良
に係わるものである。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a vibration damping sheet for a vehicle, and more specifically, for example, a vibration damping sheet for a vehicle that is attached to the floor surface or door surface of a vehicle to prevent vibration and noise. This relates to the improvement of vibration damping sheets.
（従来の技術）
一般に、自動車の振動防止や車内騒音の防止に
は熱融着型でかつ瀝青質系の制振シートが使用さ
れる。しかしながら、従来の制振シートは、たと
えば50℃の高温域では制振性が著しく低下する問
題点があつた。そこで、(イ)瀝青質シートに金属板
や不織布を重合させたもの、あるいは(ロ)瀝青質シ
ートに熱硬化性樹脂シートを重合させたもの、あ
るいは(ハ)瀝青質シートに熱可塑性シートを重合さ
せたものが、案出されているが、(イ)のものは自動
車床面の形状になじみにくく、(ロ)のものは熱融着
の際にフクレが生じ易く、フクレ防止加工を必要
とし製作が面倒になること、そして(ハ)のものは高
温域で軟化して制振効果が低下する不都合があ
り、いずれのものも良くないものであつた。(Prior Art) In general, heat-sealable bituminous damping sheets are used to prevent vibrations in automobiles and noise inside the vehicle. However, conventional vibration damping sheets have had the problem that their damping properties are significantly reduced in a high temperature range of, for example, 50°C. Therefore, (a) bituminous sheets polymerized with metal plates or nonwoven fabrics, (b) bituminous sheets polymerized with thermosetting resin sheets, or (c) bituminous sheets polymerized with thermoplastic sheets. A polymerized material has been devised, but the material in (a) has difficulty adapting to the shape of the car floor surface, and the material in (b) tends to blister during heat fusion, requiring treatment to prevent blistering. Both methods were not good, as they were troublesome to manufacture, and the method (c) softened in high temperature ranges, reducing the damping effect.
（発明が解決しようとする問題点）
しかし、本発明は上記した問題点を解決しよう
としたものであり、構造が簡単で製作し易く、か
つ製作したシートは貼着面の形状になじみ易く、
かつ高温域においても制振性の高い、車両用制振
シートを提供することにある。(Problems to be Solved by the Invention) However, the present invention attempts to solve the above-mentioned problems, and has a simple structure and is easy to manufacture, and the manufactured sheet easily conforms to the shape of the adhesive surface.
Another object of the present invention is to provide a vibration damping sheet for a vehicle that has high vibration damping properties even in a high temperature range.
（問題点を解決するための手段）
そこで、前記問題点を解決するための本発明の
手段は、瀝青を主体とした瀝青シート部の片面全
体に、金属あるいは非金属よりなる、はく片状物
質とホツトメルト樹脂との混合物を層状に接着せ
しめたものとなすことにある。(Means for Solving the Problems) Therefore, the means of the present invention for solving the above-mentioned problems is to provide a flake-shaped sheet made of metal or non-metal on the entire one side of the bitumen sheet portion mainly made of bitumen. The object is to form a layered mixture of a substance and a hot melt resin.
（作用）
この発明において、瀝青シート部および、はく
片状物質を含むホツトメルト樹脂層部により、車
両の振動、防音が吸収される。そして本発明は熱
融着性の材質とはく片状物質とよりなり、被接着
部の形状によくなじむ。はく片状物質はとくに高
温においても拘束層として働き、瀝青シートのみ
に較べ制振効果を維持するのに役立つ。(Function) In the present invention, vibrations and soundproofing of the vehicle are absorbed by the bitumen sheet portion and the hot melt resin layer portion containing flaky material. The present invention is made of a heat-fusible material and a flake-like material, and it conforms well to the shape of the part to be adhered. The flakes act as a restraining layer, especially at high temperatures, and help maintain the damping effect compared to bituminous sheets alone.
（実施例）
次に本発明の一実施例を、参照図面により説明
する。(Example) Next, an example of the present invention will be described with reference to the drawings.
第１図は本例の制振シート１を示すものであつ
て、制振用に使用される通常の瀝青シート２の片
面全体に、金属あるいは非金属よりなる無数のは
く片状物質４〜４をホツトメルト樹脂５に分散さ
せたはく片接着層３を設けたものである。前記瀝
青シート２は主体とする瀝青質に炭酸カルシウム
粉末及びアスベストなどを混合してシート状にな
したものである。 FIG. 1 shows a vibration damping sheet 1 of this example, in which numerous flake-like substances 4 to 4 made of metal or non-metal are covered over one side of a normal bitumen sheet 2 used for vibration damping. A flake adhesive layer 3 in which 4 is dispersed in a hot melt resin 5 is provided. The bitumen sheet 2 is formed into a sheet by mixing the bituminous substance with calcium carbonate powder, asbestos, and the like.
前記はく片状物質４〜４は、アルミニウムはく
片などの金属はく片、マイカなどの非金属はく片
が使用され、はく片のアスペクト比（はく片の平
均直径／平均厚み）は約60〜90程度の非常に偏平
のものである。そしてはく片状物質４〜４の粒度
は、あまり大きいと剥れ易くなり、かつあまり小
さいとアスペクト比の高いものが得にくいので約
20〜100メツシユ程度、好ましくは約40〜80メツ
シユ程度のものが採用される。ホルトメルト樹脂
５は、熱融着炉（図示せず）の温度条件に応じた
適度の軟化点のものが選択使用され、たとえば
EVA（エチレン酢酸ビニル共重合体）、ポリエチ
レン、ポリプロピレンなどの熱可塑性の合成樹脂
が単体あるいは混合して用いられる。またホツト
メルト樹脂５は瀝青質にEVA、ポリエチルン、
ポリプロピレンなどの熱可塑性樹脂を配合したも
のであつてよい。そして、ホツトメルト樹脂５に
は、タルク、炭酸カルシウム、鉄粉などの無機質
フイラーを添加し重量を上げて制振効果及び遮音
効果を高めることができる。なお、制振シート１
は通常何枚か重ねた状態で取扱われるため、常温
にてベタツキが少なく、かつコーテイングし易い
EVA系のホツトメルトタイプのものが望ましい。 For the flake-like substances 4 to 4, metal flakes such as aluminum flakes and non-metallic flakes such as mica are used, and the aspect ratio of the flakes (average diameter/average thickness of flakes) is ) is very oblate with a size of about 60 to 90. The particle size of the flaky substances 4 to 4 is about
About 20 to 100 meshes, preferably about 40 to 80 meshes, is used. The holt-melt resin 5 is selected to have an appropriate softening point depending on the temperature conditions of the heat fusion furnace (not shown), such as
Thermoplastic synthetic resins such as EVA (ethylene vinyl acetate copolymer), polyethylene, and polypropylene are used singly or in combination. In addition, the hot melt resin 5 includes bituminous materials such as EVA, polyethylene,
It may be blended with a thermoplastic resin such as polypropylene. Then, an inorganic filler such as talc, calcium carbonate, iron powder, etc. can be added to the hot melt resin 5 to increase its weight, thereby increasing the vibration damping effect and the sound insulation effect. In addition, vibration damping sheet 1
Because it is usually handled in layers, it is less sticky at room temperature and is easier to coat.
EVA hot melt type is preferable.
しかして、本例の制振シート１は自動車ボデー
床面の鉄板部Ｇに、制振シート１のはく片接着層
３が上向きとなるようにして加熱着接される。制
振シート１は熱融着タイプであり、かつはく片を
使用しているため、床面の鉄板部Ｇの形状によく
なじみ接着性良好であつた。次いで接着した制振
シート１にはフエルト６が重ねられ、該フエルト
６上にはカーペツト７が敷かれて床面が構成され
る。 Thus, the damping sheet 1 of this example is heat-bonded to the steel plate G on the floor surface of the automobile body with the peel adhesive layer 3 of the damping sheet 1 facing upward. Since the damping sheet 1 was of a heat-sealing type and used flakes, it conformed well to the shape of the iron plate portion G on the floor surface and had good adhesion. Next, a felt 6 is laid on the bonded damping sheet 1, and a carpet 7 is laid on the felt 6 to form a floor surface.
本例の制振シート１を採用した自動車床面は防
振性（制振性）良好であつた（JAS−M329法に
基づき評価した）。 The automobile floor surface employing the damping sheet 1 of this example had good vibration damping properties (evaluated based on JAS-M329 method).
次に本例制振シートの試験例を説明する。 Next, a test example of the vibration damping sheet of this example will be explained.
試験例 １
瀝青シート部の重量が4.35Kg／m2でありマイカ
接着層が比重1.58で60メツシユのマイカ65部と
EVAのホツトメルト樹脂35部とよりなる配合で
マイカ接着層部分の重量が1.21Kg／m2の制振シー
トＳ−１（重量5.56Kg／m2）の高温時の防振性を
調べた。Test example 1 The weight of the bituminous sheet part was 4.35Kg/ m2 , and the mica adhesive layer was made of 65 parts of mica with a specific gravity of 1.58 and 60 mesh.
The vibration damping properties at high temperatures of vibration damping sheet S-1 (weight 5.56 kg/m 2 ) with a mica adhesive layer portion weighing 1.21 kg/m 2 and containing 35 parts of EVA hot melt resin were investigated.
なお、マイカ接着層を設けない瀝青シート単独
の制振シート（シート重量5.56Kg／m2）を比較対
照Ｃ−１とした。また、マイカ接着層を設けない
でマイカを直接に瀝青に混入させた制振シートの
防振性を比較対照Ｃ−２として比較した。この試
験例１の試験結果は第３図のグラフに示す通りで
あり、マイカ接着層を設けた制振シートＳ−１は
40℃、60℃の高温においても防振係数が下がら
ず、防振性良好なことがわかる。 Note that a vibration damping sheet made of a bituminous sheet alone without a mica adhesive layer (sheet weight 5.56 kg/m 2 ) was used as a comparison control C-1. In addition, the vibration damping properties of a vibration damping sheet in which mica was directly mixed into bitumen without providing a mica adhesive layer were compared as a comparison control C-2. The test results of Test Example 1 are as shown in the graph of Figure 3, and the damping sheet S-1 with the mica adhesive layer was
It can be seen that the vibration isolation coefficient does not decrease even at high temperatures of 40℃ and 60℃, indicating good vibration isolation properties.
試験例 ２
瀝青シート部の重量が2.56Kg／m2であり、マイ
カ接着層が比重1.57で40メツシユのマイカ35部
と、EVAのホツトメルト樹脂35部と、炭酸カル
シウム30部とよりなる配合でマイカ接着層部分の
重量が0.99Kg／m2の制振シートＳ−２の高温防振
性を調べた。なお、マイカ接着層を設けない瀝青
シート単独の制振シート（シート重量3.55Kg／
m2）を比較対照Ｓ−３とした。この試験例２の試
験結果は第４図のグラフに示す通りであり、マイ
カ接着層を設けた制振シートＳ−２は高温におい
ても防振性良好なことがわかる。Test Example 2 The weight of the bituminous sheet was 2.56Kg/ m2 , and the mica adhesive layer was made of mica with a composition of 35 parts of mica with a specific gravity of 1.57 and 40 mesh, 35 parts of EVA hot melt resin, and 30 parts of calcium carbonate. The high-temperature vibration-proofing properties of the vibration-damping sheet S-2 whose adhesive layer portion weighs 0.99 kg/m 2 were investigated. In addition, vibration damping sheet made of bituminous sheet alone without mica adhesive layer (sheet weight 3.55 kg/
m 2 ) was used as a comparison control S-3. The test results of Test Example 2 are as shown in the graph of FIG. 4, and it can be seen that the vibration damping sheet S-2 provided with the mica adhesive layer has good vibration damping properties even at high temperatures.
試験例 ３
瀝青シート部の重量が3.70Kg／m2であり、マイ
カ接着層が比重1.64で60メツシユのマイカ30部
と、ポリエチレン10部と、炭酸カルシウム40部
と、ストレートアルフアルト20部とよりなる配合
でマイカ接着層部分の重量が1.21Kg／m2の制振シ
ートＳ−３（シート重量4.91Kg／m2）の高温防振
性を調べた。なお、マイカ接着層を設けない瀝青
シート単独の制振シート（シート重量4.91Kg／
m2）を比較対照Ｓ−４とした。Test Example 3 The weight of the bituminous sheet part is 3.70Kg/ m2 , and the mica adhesive layer is made of 30 parts of mica with a specific gravity of 1.64 and 60 mesh, 10 parts of polyethylene, 40 parts of calcium carbonate, and 20 parts of straight alpha alt. The high-temperature vibration damping properties of vibration damping sheet S-3 (sheet weight 4.91 Kg/m 2 ) with a mica adhesive layer portion weight of 1.21 Kg/m 2 were investigated. In addition, a vibration damping sheet made of bituminous sheet alone without a mica adhesive layer (sheet weight 4.91Kg/
m 2 ) was used as a comparison control S-4.
この試験例３の試験結果は第５図のグラフに示
す通りであり、マイカ接着層を設けた制振シート
Ｓ−３は高温において防振性良好なことがわか
る。 The test results of Test Example 3 are as shown in the graph of FIG. 5, and it can be seen that the vibration damping sheet S-3 provided with the mica adhesive layer has good vibration damping properties at high temperatures.
（発明の効果）
本発明は、瀝青シート部にはく片状物質をホツ
トメルト樹脂にて接着した構造であるため、構造
が簡単であり、製造し易い。そして瀝青シート及
びホツトメルト樹脂を主体としているので、車両
床面などの接着部形状になじみ易く、かつはく片
状物質を含むホツトメルト層により、常温域はも
ちろん、たとえば40℃などの高温域においても制
振性が高い効果を奏する。(Effects of the Invention) The present invention has a structure in which a flake-like substance is adhered to a bitumen sheet portion using a hot melt resin, so the structure is simple and easy to manufacture. Since it is mainly made of bituminous sheet and hot melt resin, it easily conforms to the shape of the bonded part such as the vehicle floor surface, and because of the hot melt layer containing flaky substances, it can be used not only at room temperature but also at high temperatures such as 40 degrees Celsius. It has a high vibration damping effect.
第１図及び第２図は本発明の一実施例を示すも
のであり、第１図は制振シートの一部破断省略し
た斜視図、第２図は使用態様図である。第３図、
第４図及び第５図は制振性試験の結果を示すグラ
フである。
１……制振シート、２……瀝青シート、３……
はく片接着層、４……はく片状物質、５……ホツ
トメルト樹脂。
1 and 2 show an embodiment of the present invention. FIG. 1 is a perspective view of a vibration damping sheet with a partially cutaway portion omitted, and FIG. 2 is a view of how it is used. Figure 3,
FIGS. 4 and 5 are graphs showing the results of the vibration damping test. 1... Vibration damping sheet, 2... Bituminous sheet, 3...
flake adhesive layer, 4... flake-like substance, 5... hot melt resin.
Claims (1)
に、金属あるいは非金属よりなる、はく片状物質
とホツトメルト樹脂との混合物を層状に接着せし
めてなることを特徴とした車両用制振シート。1. A vibration damping sheet for a vehicle, characterized in that a mixture of a flake-like substance made of a metal or a non-metal and a hot melt resin is adhered in a layer on one side of a bituminous sheet mainly made of bitumen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24140484A JPS61118243A (en) | 1984-11-14 | 1984-11-14 | Vibration-damping sheet for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24140484A JPS61118243A (en) | 1984-11-14 | 1984-11-14 | Vibration-damping sheet for car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61118243A JPS61118243A (en) | 1986-06-05 |
| JPH0444570B2 true JPH0444570B2 (en) | 1992-07-22 |
Family
ID=17073775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24140484A Granted JPS61118243A (en) | 1984-11-14 | 1984-11-14 | Vibration-damping sheet for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61118243A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0661892B2 (en) * | 1990-04-13 | 1994-08-17 | 日本特殊塗料株式会社 | High damping material |
| JPH0464744A (en) * | 1990-07-03 | 1992-02-28 | Nippon Sekisoo Kogyo Kk | Bitumen system vibration-damping sheet provided with surface-processed layer |
-
1984
- 1984-11-14 JP JP24140484A patent/JPS61118243A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61118243A (en) | 1986-06-05 |
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