JPS6325236Y2 - - Google Patents
Info
- Publication number
- JPS6325236Y2 JPS6325236Y2 JP6713882U JP6713882U JPS6325236Y2 JP S6325236 Y2 JPS6325236 Y2 JP S6325236Y2 JP 6713882 U JP6713882 U JP 6713882U JP 6713882 U JP6713882 U JP 6713882U JP S6325236 Y2 JPS6325236 Y2 JP S6325236Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- sound absorbing
- absorbing member
- carpet
- floor
- 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
- 239000002344 surface layer Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 27
- 239000000835 fiber Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 16
- 239000000057 synthetic resin Substances 0.000 claims description 16
- 229920003002 synthetic resin Polymers 0.000 claims description 16
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 19
- 238000009413 insulation Methods 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 11
- 239000010426 asphalt Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 230000007423 decrease Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Passenger Equipment (AREA)
- Carpets (AREA)
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は音を吸収する効果と音をさえぎる効
果とをもつ自動車用カーペツトに関するものであ
る。[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a carpet for automobiles that has the effect of absorbing sound and the effect of blocking sound.
従来、カーペツト等の表層部材の裏面の中央部
に、自動車の床面の一部に合せて表層部材よりも
小さく一定形状に栽断した繊維質の吸音部材を張
り合せ、さらに該吸音部材の裏面のみに吸音部材
と同じ大きさのシート状の遮音部材を張り合せた
自動車用カーペツトが知られている。この従来の
自動車用カーペツトは表層部材で外観を向上さ
せ、吸音部材で車室内の音を吸音させ、同時に遮
音部材で床面より車内に侵入する音を遮音させよ
うとしている。
Conventionally, a fibrous sound-absorbing member cut into a certain shape smaller than the surface member to match a part of the floor of the automobile is attached to the center of the back side of a surface member such as a carpet, and then the back side of the sound-absorbing member is pasted. Carpets for automobiles are known in which a sheet-like sound insulating member of the same size as the sound absorbing member is laminated together. This conventional automobile carpet uses a surface layer material to improve the appearance, a sound absorbing material to absorb sound inside the vehicle, and at the same time a sound insulating material to insulate sound from entering the vehicle from the floor surface.
しかしながら、従来の自動車用カーペツトは遮
音部材が吸音部材の裏面にのみしか接合されてい
ない。すなわち、床より上方に立ち上る両側下端
部や床面に設けられた突部のように厚い吸音部材
が使用されていない部分は表層部材だけであり、
遮音部材が存在しない。従つて、それらの部分か
ら床面の音が室内に侵入する。
However, in conventional automobile carpets, the sound insulating member is bonded only to the back side of the sound absorbing member. In other words, the only parts where thick sound absorbing members are not used are the surface layer members, such as the lower ends of both sides that rise above the floor and the protrusions provided on the floor surface.
There is no sound insulation material. Therefore, the sound from the floor enters the room from these parts.
本考案はこの問題点を解決すべくなされたもの
であつて、床面から侵入する音を確実に遮音し、
さらに吸音効率の高い自動車用カーペツトを提供
することを目的とする。 The present invention was developed to solve this problem, and is designed to reliably insulate sound from entering from the floor.
Furthermore, it is an object of the present invention to provide a carpet for automobiles with high sound absorption efficiency.
本考案の自動車用カーペツトは、自動車の床お
よび該床より上方に立ち上る両側下端部を覆うカ
ーペツト、フエルト等の表層部材と、該床の一部
を覆い、該表層部材の裏面の一部に通気性材料で
一体的に接合されたシート状の吸音部材と、該吸
音部材の裏面および該床と該両側下端部を覆う該
表層部材の裏面のうち該吸音部材の接合されてい
ない該表層部材の裏面とに一体的に接合されたシ
ート状の遮音部材とよりなる。
The automotive carpet of the present invention includes a surface member such as a carpet or felt that covers the floor of the vehicle and the lower ends of both sides rising above the floor, and a surface member that covers a part of the floor and has ventilation on a part of the back surface of the surface member. a sheet-like sound absorbing member integrally joined with a flexible material, and the back surface of the sound absorbing member and the back surface of the surface member covering the floor and the lower end portions of both sides, to which the sound absorbing member is not joined; It consists of a sheet-like sound insulating member that is integrally joined to the back surface.
表層部材は、自動車の床および床より上方に立
ち上る両側下端部を覆い装飾的効果を与えるとと
もに、吸音部材の表面を保護する。さらに表層部
材は音を吸音部材に導き、そこで吸音させる。そ
のため表層部材は通気性を有するものを使用す
る。表層部材としては、繊維を集積してニードル
パンチングを加えたフエルトあるいはフエルト状
のもの（ニードルパンチカーペツト）、繊維を織
成あるいは編成した布状のもの、布状材料に植毛
したカーペツト（タフトカーペツト）等の裏面に
通気性材料を裏打ちしたものを使用する。通気性
材料としてポリエチレン、ポリプロピレン、ポリ
メチルメタアクリレート樹脂のような常温でガラ
ス状態にあり少なくとも部分的に溶融冷却される
合成樹脂粉末を用いることができる。かかる合成
樹脂粉末を通気性材料として使用し成形工程で加
熱成形すると、この合成樹脂粉末が剛性のある多
孔質体となり表層部材と吸音部材との接合が通気
性のある状態で強固になるばかりでなく、吸音部
材、遮音部材の形状維持に有効である。なお、裏
打ちする合成樹脂粉末の量を加減することにより
表層部材の通気量を任意に制御することができ
る。通気性としては表層部材の表面積１cm2あたり
１秒間、気圧差12.7mm水柱で10ml以上の空気を通
すものが好ましい。より好ましくは同じ条件で50
ml以上の空気を通すものが良い。10ml以下の通気
量では音は表層部材で反射され吸音効果が十分で
ない。合成樹脂粉末の塗布量としては100〜800
ｇ／m2程度がよく、塗布量が多い場合には合成樹
脂粉末を格子状、島状に塗布し、通気性を保持す
ることができる。 The surface layer member covers the floor of the automobile and the lower ends of both sides rising above the floor, provides a decorative effect, and protects the surface of the sound absorbing member. Further, the surface layer member guides the sound to the sound absorbing member and absorbs the sound there. Therefore, the surface layer member used is one that has air permeability. Surface layer materials include felt or felt-like material made by accumulating fibers and adding needle punching (needle-punched carpet), cloth-like material made from woven or knitted fibers, and carpet made from flocked cloth material (tufted carpet). Use a material with a breathable material lined on the back. As the breathable material, synthetic resin powders such as polyethylene, polypropylene, and polymethyl methacrylate resins, which are in a glass state at room temperature and are at least partially melted and cooled, can be used. When such synthetic resin powder is used as a breathable material and heat-molded in the molding process, this synthetic resin powder becomes a rigid porous body, and the bond between the surface layer member and the sound absorbing member becomes strong in a breathable state. This is effective for maintaining the shape of sound absorbing members and sound insulating members. Note that the amount of ventilation in the surface layer member can be arbitrarily controlled by adjusting the amount of synthetic resin powder for lining. Regarding air permeability, it is preferable that 10 ml or more of air per 1 cm 2 of surface area of the surface layer member passes through for 1 second at a pressure difference of 12.7 mm in water column. More preferably 50 under the same conditions
It is best to use one that allows more than ml of air to pass through. If the ventilation volume is less than 10ml, the sound will be reflected by the surface layer material and the sound absorption effect will not be sufficient. The amount of synthetic resin powder applied is 100 to 800.
About g/m 2 is good, and if the coating amount is large, the synthetic resin powder can be applied in a lattice or island shape to maintain air permeability.
吸音部材は、床の一部を覆い、表層部材の裏面
の一部に一体的に接合されたシート状である。こ
の吸音部材としては、短繊維が個々に交錯して絡
み合い、嵩密度20〜150Kg／m3の短繊維の集合体
であり、厚さ５〜50mmのシート状とするのが好ま
しい。この短繊維の集合体はすぐれた吸音特性を
有する。この特性は集合体を構成する主成分が極
めて細い短繊維であること、及び各短繊維が無作
為の方向に三次元的にほぼ均一に分散し、嵩密度
が20〜150Kg／m3であることに基づくと考えられ
る。すなわち、極めて細い繊維が複雑に絡み合
い、通過する空気に迷路状の通路を与え、音波の
伝播によつて生じる空気の振動（移動）を抑制
し、空気の移動抵抗を大きくして音を吸収すると
解される。従つて、短繊維の配置が前述したもの
と異なり、例えば、布等のように一定方向に配列
せしめたものを用いた場合には音の吸収作用が減
少する。これは繊維の集合体に保持される空気量
が減少し、かつ短繊維どうしの結合が強くなりす
ぎるため短繊維間での相互作用が低下するためで
あると解される。従つて、吸音部材の嵩密度を20
〜150Kg／m3の範囲にするのが好ましい。嵩密度
が20Kg／m3に達しない場合には、短繊維どうしの
結合が弱すぎるために吸音部材としての形状保持
が困難となるためである。また嵩密度150Kg／m3
以下としたのは嵩密度が150Kg／m3をこえると短
繊維間の結合が強くなりすぎる結果、音の吸収効
果が減少するためである。また、音の吸収率は吸
音部材の厚さが増加するに従つて増加するが、実
用的には吸音部材の厚さは５〜50mmが適当であ
る。厚さは５mm未満では遮音部材と表層部材との
間の振動絶縁が困難であり、遮音部材が振動して
二次的な騒音を放射するためである。また厚さを
50mm以下とするのは50mmをこえる場合には実用的
ではないからである。特殊な場合として、50mm以
上の厚さを必要とする場合は本吸音部材を２枚あ
るいはそれ以上積層することにより、すぐれた吸
音効果が得られる。 The sound absorbing member is in the form of a sheet that covers a portion of the floor and is integrally joined to a portion of the back surface of the surface layer member. This sound-absorbing member is preferably an aggregate of short fibers having a bulk density of 20 to 150 kg/m 3 in which short fibers are individually crossed and entangled, and formed into a sheet shape with a thickness of 5 to 50 mm. This aggregate of short fibers has excellent sound absorption properties. This property is due to the fact that the main component of the aggregate is extremely thin short fibers, and each short fiber is almost uniformly distributed three-dimensionally in random directions, and has a bulk density of 20 to 150 kg/ m3. It is thought that this is based on the following. In other words, extremely thin fibers intertwine in a complex manner, creating a maze-like path for the air passing through, suppressing the vibration (movement) of the air caused by the propagation of sound waves, and increasing the resistance to air movement to absorb sound. be understood. Therefore, if the arrangement of the short fibers is different from that described above and is arranged in a fixed direction, such as cloth, the sound absorption effect will be reduced. This is understood to be because the amount of air held in the fiber aggregate decreases and the bonds between the short fibers become too strong, resulting in a decrease in the interaction between the short fibers. Therefore, the bulk density of the sound absorbing member is 20
The range is preferably 150 Kg/m 3 . This is because if the bulk density does not reach 20 Kg/m 3 , the bond between the short fibers is too weak, making it difficult to maintain the shape as a sound absorbing member. Also bulk density 150Kg/m 3
The reason for the following is that when the bulk density exceeds 150 Kg/m 3 , the bond between the short fibers becomes too strong and the sound absorption effect decreases. Further, the sound absorption rate increases as the thickness of the sound absorbing member increases, but in practical terms, the appropriate thickness of the sound absorbing member is 5 to 50 mm. If the thickness is less than 5 mm, vibration isolation between the sound insulation member and the surface layer member is difficult, and the sound insulation member vibrates and radiates secondary noise. Also the thickness
The reason why it is set to 50 mm or less is because it is not practical if it exceeds 50 mm. In special cases, when a thickness of 50 mm or more is required, an excellent sound absorption effect can be obtained by laminating two or more of these sound absorbing members.
遮音部材は、吸音部材の裏面に一体的に接合さ
れるとともに、床と両側下端部を覆う表層部材の
裏面のうち吸音部材の接合されていない表層部材
の裏面に一体的に接合されたシート状である。こ
の遮音部材は熱可塑性の合成樹脂、アスフアルト
等の気密性のあるシート材料とする。遮音部材の
面密度を0.5Kg／m2以上とすると遮音部材が音波
により振動することなく効果的に遮音効果を達成
する。なお面密度は最高で30Kg／m2程度である。
これ以上面密度を高くしても、これらの効果の向
上はあまりなく、逆に重くなる、経済的でない等
の問題が生じるためである。遮音部材の材質とし
ては、ゴムシート、合成樹脂シート、アスフアル
トシートあるいはそれらに珪酸カルシウム、鉛な
どの細粒、細片を混入したもの又は極く薄い鉛シ
ートなど、振動に対する内部損失の大きいものが
好ましい。内部損失の大きい材質を選ぶのは、遮
音部材の共振あるいは床面との接触部からの振動
伝達による二次的な放射音を防止する効果がある
ためである。なお、遮音部材は全体を同一の材質
で構成する必要はない。吸音部材に接する部分は
接着性のよいアスフアルトシートを用い、吸音部
材がない表層部材の部分には合成樹脂シートを用
いることができる。この場合、アスフアルトシー
トと合成樹脂シートは、はなれず一体的に接合さ
れていなければならない。分離していると、その
隙間から音が侵入するからである。 The sound insulating member is a sheet-like member that is integrally joined to the back surface of the sound absorbing member, and is also integrally joined to the back surface of the surface member that covers the floor and the lower ends of both sides to which the sound absorbing member is not joined. It is. This sound insulation member is made of an airtight sheet material such as thermoplastic synthetic resin or asphalt. When the areal density of the sound insulation member is set to 0.5 Kg/m 2 or more, the sound insulation member effectively achieves the sound insulation effect without being vibrated by sound waves. The maximum areal density is about 30Kg/ m2 .
This is because even if the areal density is increased further, these effects will not be improved much, and problems such as increased weight and uneconomical problems will occur. Materials for sound insulation members include rubber sheets, synthetic resin sheets, asphalt sheets, materials mixed with fine particles or pieces of calcium silicate or lead, or extremely thin lead sheets, which have a large internal loss against vibration. preferable. The reason why a material with a large internal loss is selected is that it has the effect of preventing secondary radiated sound due to resonance of the sound insulating member or vibration transmission from the contact part with the floor surface. Note that the entire sound insulating member does not need to be made of the same material. An asphalt sheet with good adhesiveness can be used for the part that comes into contact with the sound absorbing member, and a synthetic resin sheet can be used for the part of the surface layer member that does not have the sound absorbing member. In this case, the asphalt sheet and the synthetic resin sheet must be integrally joined without being separated. This is because if they are separated, sound will enter through the gap.
本考案の自動車用カーペツトでは吸音部材はあ
る程度の厚さが必要であるため表層部材の裏面全
面に吸音部材を設けることができない。しかし、
遮音部材は比較的薄くとも遮音効果が高い。さら
に遮音部材を表層部材の全面に張り合せても特別
の不都合は生じない。従つて本考案の自動車用カ
ーペツトは従来の自動車用カーペツトとほぼ同一
の寸法、大きさで、車体床面より侵入する音を自
動車用カーペツトが被覆する面全てで遮音するこ
とができ、従来の自動車用カーペツトに比較し、
遮音効果が向上する。 In the automobile carpet of the present invention, the sound absorbing member must have a certain thickness, so it is not possible to provide the sound absorbing member on the entire back surface of the surface layer member. but,
Although the sound insulation member is relatively thin, it has a high sound insulation effect. Furthermore, no particular inconvenience occurs even if the sound insulating member is laminated over the entire surface of the surface layer member. Therefore, the automobile carpet of the present invention has almost the same dimensions and dimensions as conventional automobile carpets, and can insulate the sound that enters from the floor of the vehicle body on all the surfaces covered by the automobile carpet. Compared to carpet for
Improves sound insulation effect.
上記した自動車用カーペツトの遮音部材の裏面
にさらに別の第２吸音部材を張り合せることによ
り、さらに第２吸音部材の吸音効果が付加され
る。この自動車用カーペツトは床面よりの音を第
２吸音部材で吸音し、吸音されなかつた音を遮音
部材でさらに遮音する。このため車室内の静けさ
はさらに高まる。また第２吸音部材は床面から遮
音部材に伝達される振動を遮断する。なお、二次
的な効果として、第２吸音部材は床面の表面の若
干の凹凸を自己の変形によつて平坦化し遮音部材
の形状保持を容易にする。第２吸音部材の材質は
上記吸音部材の材質と同じものでもよいし、軟質
ポリウレタンフオームのように連続気泡の合成樹
脂発泡体でもよい。第２吸音部材の嵩密度は20〜
150Kg／m3とするのが好ましい。20Kg／m3未満で
は、強度が低く、形状維持が困難で作業性が悪
い。150Kg／m3をこえると、柔軟性が減少し吸音
効果が低い。厚さは５mm未満では床面と遮音部材
との間の振動絶縁が困難であり、遮音部材が振動
して二次的な騒音を放射するためである。また厚
さを50mm以下とするのは50mmをこえる場合には実
用的ではないからである。 By laminating another second sound absorbing member to the back surface of the sound insulating member of the above-mentioned automobile carpet, the sound absorbing effect of the second sound absorbing member is further added. This automobile carpet absorbs sounds from the floor using the second sound absorbing member, and further insulates unabsorbed sounds using the sound insulating member. This makes the cabin even more quiet. Further, the second sound absorbing member blocks vibrations transmitted from the floor surface to the sound insulating member. As a secondary effect, the second sound absorbing member flattens the slight irregularities on the surface of the floor by its own deformation, making it easier to maintain the shape of the sound insulating member. The material of the second sound-absorbing member may be the same as that of the sound-absorbing member, or may be an open-cell synthetic resin foam such as soft polyurethane foam. The bulk density of the second sound absorbing member is 20~
It is preferable to set it as 150Kg/ m3 . If it is less than 20 kg/m 3 , the strength is low, it is difficult to maintain the shape, and the workability is poor. If it exceeds 150Kg/ m3 , the flexibility will decrease and the sound absorption effect will be low. If the thickness is less than 5 mm, vibration isolation between the floor surface and the sound insulation member is difficult, and the sound insulation member vibrates and radiates secondary noise. Further, the reason why the thickness is set to 50 mm or less is because it is not practical if the thickness exceeds 50 mm.
本自動車用カーペツトは、表層部材を赤外線ヒ
ータ等で熱した後、型上でこの表層部材、吸音部
材および遮音部材を加熱加圧変形し、冷却固化す
ることにより成形が可能である。そのため曲面、
平面を問わず形成可能で、自動車の床面形状にそ
つた形状に成形可能である。 The present automobile carpet can be molded by heating the surface layer member with an infrared heater or the like, deforming the surface layer member, sound absorbing member and sound insulating member on a mold by heating and pressing, and cooling and solidifying. Therefore, the curved surface
It can be formed on any flat surface, and can be molded into a shape that conforms to the shape of the car floor.
本自動車用カーペツトの吸音特性は主として吸
音部材によつて得られ、表層部材の通気性を制御
することにより音の吸収帯域の制御がなされる。
また床面全てを覆つた遮音部材により床面からの
音を全面的に遮音する。遮音部材の裏面に第２吸
音部材を設けた場合、第２吸音部材の吸音効果と
ともに遮音部材の遮音効果がさらに向上する。
The sound absorption properties of the present automobile carpet are obtained primarily by the sound absorption member, and the sound absorption band is controlled by controlling the air permeability of the surface layer member.
In addition, the sound insulating material covering the entire floor completely blocks out noise from the floor. When the second sound absorbing member is provided on the back surface of the sound insulating member, the sound absorbing effect of the second sound absorbing member and the sound insulating effect of the sound insulating member are further improved.
〔実施例 １〕
表層部材２として、ポリプロピレン短繊維を積
層し、さらにニードルパンチを行なつて得たフエ
ルト状のカーペツト（ニードルパンチカーペツ
ト）（厚さ７mm、面密度500ｇ／m2）の裏面に、ポ
リメチルメタアクリレート樹脂粉末を通気性材料
として１m2当り約280ｇ網面状に裏打ちし、それ
を最終製品である自動車用カーペツトの形状にそ
つて裁断した。[Example 1] As the surface layer member 2, the back surface of a felt-like carpet (needle punch carpet) (thickness 7 mm, areal density 500 g/m 2 ) obtained by laminating polypropylene staple fibers and further performing needle punching. Next, polymethyl methacrylate resin powder was used as an air-permeable material and lined with a net of about 280 g per square meter, which was then cut into the shape of the final product, an automobile carpet.
次に吸音部材３として、綿、ポリエステル等の
短繊維をフエノール樹脂接着剤で積層したフエル
ト状の感触を有する厚さ10mm、嵩密度60Kg／m3の
短繊維集合体を使用し、自動車の床面の一部に合
せて一定寸法に裁断した。 Next, as the sound absorbing member 3, a short fiber aggregate of cotton, polyester, etc. short fibers laminated with a phenol resin adhesive with a thickness of 10 mm and a bulk density of 60 kg/ m3 , which has a felt-like feel, is used. It was cut to a certain size to fit part of the surface.
また、遮音部材４として、面密度３Kg／m2のア
スフアルトシートを用い表層部材２と同じ寸法に
裁断した。 Further, as the sound insulation member 4, an asphalt sheet with an areal density of 3 kg/m 2 was used and cut into the same dimensions as the surface layer member 2.
そして、遮音部材４を第５図に示す自動車用カ
ーペツト成形用金型１の下型１２の上面全てにそ
つて設置し、さらに吸音部材３をこの遮音部材４
の上の所定位置に重ねた。また、裁断した表層部
材２を赤外線ランプでその樹脂粉末を塗布した面
の上方より100〜150℃に加熱してこの樹脂粉末を
軟化一部溶融し、軟化した樹脂粉末をもつ面を下
にして、下型１２の上面に設置した上記遮音部材
４および吸音部材３の上全面に重ねた。そしてた
だちに上型１１を降し、上型１１と下型１２の間
でプレス成形した。軟化した樹脂粉末が冷却固化
し通気性材料とした後、上型１１を上げ、得られ
た本考案の自動車用カーペツトを下型１２より取
り出した。 Then, the sound insulating member 4 is installed along the entire upper surface of the lower mold 12 of the automobile carpet molding mold 1 shown in FIG.
It was placed in the designated position on top of the screen. In addition, the cut surface layer member 2 is heated to 100 to 150 degrees Celsius from above the surface coated with the resin powder using an infrared lamp to soften and partially melt the resin powder, and the surface with the softened resin powder is placed downward. , was placed over the entire surface of the sound insulating member 4 and sound absorbing member 3 installed on the upper surface of the lower mold 12. Immediately, the upper mold 11 was lowered, and press molding was performed between the upper mold 11 and the lower mold 12. After the softened resin powder was cooled and solidified to form a breathable material, the upper mold 11 was lifted and the resulting automobile carpet of the present invention was taken out from the lower mold 12.
得られた本実施例の自動車用カーペツトの斜視
図を第４図に示す。またこの自動車用カーペツト
を自動車の床面に敷いた状態の断面を第１図、第
２図に示す。なお、第１図の断面は第４図のＡ−
Ａ矢視断面に、第２図の断面は第４図のＢ−Ｂ矢
視断面に相当する。 A perspective view of the obtained automobile carpet of this example is shown in FIG. Further, FIGS. 1 and 2 show cross sections of this automobile carpet laid on the floor of an automobile. Note that the cross section in Figure 1 is taken from A- in Figure 4.
The cross section in FIG. 2 corresponds to the cross section taken along line B-B in FIG. 4.
この自動車用カーペツトは表層部材２と吸音部
材３および遮音部材４とよりなる。 This automobile carpet consists of a surface layer member 2, a sound absorbing member 3, and a sound insulating member 4.
表層部材２は、第１図、第２図に示すようにカ
ーペツトに通気性材料が裏打ちされ、吸音部材３
と通気性のある状態で接合している。 As shown in FIGS. 1 and 2, the surface layer member 2 includes a carpet lined with a breathable material, and a sound absorbing member 3.
and are connected in a breathable manner.
吸音部材３は、自動車の床５の底部５１および
中央の突部５２のみを覆つており、両側下端部５
３および自動車の床５を左右に走る梁状の突部５
４は覆つていない。これらの部分は、設計上、吸
音部材３を使用すると車室内が狭くなる等の不都
合が生じるためである。 The sound absorbing member 3 covers only the bottom part 51 and the central protrusion 52 of the floor 5 of the automobile, and covers the lower end parts 5 on both sides.
3 and a beam-shaped protrusion 5 running left and right on the floor 5 of the car.
4 is not covered. This is because the use of the sound absorbing member 3 in these parts causes problems such as narrowing of the vehicle interior.
遮音部材４は、吸音部材３の存在しない上記両
側下端部５３、突部５４も覆い、床５の全面を覆
つている。 The sound insulating member 4 also covers the lower end portions 53 and the protrusions 54 on both sides where the sound absorbing member 3 is not present, and covers the entire surface of the floor 5.
本実施例の自動車用カーペツトは、遮音部材４
で床５から車室内に侵入する音を効果的に遮断し
ている。また遮音部材４は吸音部材３に比較して
厚さが薄いため、車室内の幅を狭くする不都合も
生じない。 The automobile carpet of this embodiment has a sound insulating member 4
This effectively blocks the sound that enters the passenger compartment from floor 5. Furthermore, since the sound insulating member 4 is thinner than the sound absorbing member 3, there is no problem of narrowing the width of the vehicle interior.
〔実施例 ２〕
表層部材２として、実施例１と同じ材料のフエ
ルト状カーペツト（ニードルパンチカーペツト）
の裏面に、通気性材料としてアクリル酸、塩化ビ
ニル、酢酸ビニル等のビニルモノマーとエチレン
またはスチレンとの共重合物を１m2あたり約300
ｇ、さらにエチレン−ビニルアセテート樹脂粉末
を１m2あたり約30ｇ網目状に裏打ちし、それを最
終製品である自動車用カーペツトの形状にそつて
裁断した。[Example 2] As the surface layer member 2, a felt-like carpet (needle punch carpet) made of the same material as in Example 1 was used.
A copolymer of vinyl monomers such as acrylic acid, vinyl chloride, vinyl acetate, and ethylene or styrene is added as a breathable material to the back side of the paper at a rate of about 300 per square meter .
g, and further lined with ethylene-vinyl acetate resin powder of about 30 g per m 2 in the form of a mesh, which was then cut into the shape of the final product, an automobile carpet.
吸音部材３，６として、実施例１の吸音部材と
同じ材質、形状の吸音部材３と第２吸音部材６を
用意した。 As the sound absorbing members 3 and 6, the sound absorbing member 3 and the second sound absorbing member 6 having the same material and shape as the sound absorbing member of Example 1 were prepared.
つぎに遮音部材として、実施例１で用いたのと
同じアスフアルトシート４を第２吸音部材６より
わずかに大きい形状に裁断し、エチレン−ビニル
アセテート樹脂のフイルム（２Kg／m2）からなる
合成樹脂シート４１を床面の両側下端部の形状に
裁断した。 Next, as a sound insulating member, the same asphalt sheet 4 used in Example 1 was cut into a shape slightly larger than the second sound absorbing member 6, and a synthetic resin made of ethylene-vinyl acetate resin film (2 kg/m 2 ) was used. The sheet 41 was cut into the shape of the lower end portions on both sides of the floor surface.
そして第２吸音部材６を実施例１と同じ成形型
１の下型１２の上面の所定位置に設置し、さらに
アスフアルトシート４をこの第２吸音部材６を覆
うように重ねた。そのつぎに、合成樹脂シート４
１を加熱して軟化させ、下型１２のアスフアルト
シート４の周端が重なる程度にアスフアルトシー
ト４の周辺に配置した。さらに吸音部材３をアス
フアルトシート４の上に所定位置に重ねて置い
た。そして表層部材２を赤外線ランプで上記樹脂
粉末を塗布した面の上方より100〜150℃に加熱し
てこの樹脂粉末を軟化一部溶融し、加熱された面
を下にして吸音部材３、合成樹脂シート４１の上
全面に重ね、ただちに上型１１を下げて上型１１
と下型１２とを閉ざしプレス成形した。軟化ある
いは溶融した樹脂粉末を冷却固化し通気性材料と
した後、上型１１を上げ、本実施例の自動車用カ
ーペツトを製造した。 Then, the second sound absorbing member 6 was installed at a predetermined position on the upper surface of the lower die 12 of the mold 1, which is the same as in Example 1, and the asphalt sheet 4 was layered so as to cover the second sound absorbing member 6. Next, synthetic resin sheet 4
1 was heated to soften it and placed around the asphalt sheet 4 of the lower mold 12 to such an extent that the peripheral edges of the asphalt sheet 4 overlapped with each other. Further, the sound absorbing member 3 was placed on top of the asphalt sheet 4 in a predetermined position. Then, the surface layer member 2 is heated to 100 to 150°C from above the surface coated with the resin powder using an infrared lamp to soften and partially melt the resin powder. Lay it on the entire surface of the sheet 41, and immediately lower the upper mold 11.
and the lower mold 12 were closed and press molding was performed. After the softened or melted resin powder was cooled and solidified to form a breathable material, the upper mold 11 was lifted, and the automobile carpet of this example was manufactured.
この自動車用カーペツトの第１図と同様な断面
を第３図に示す。この自動車用カーペツトは、表
層部材２がカーペツトに通気性材料を裏打ちさ
れ、吸音部材３と通気性のある状態で接合してい
る。また、吸音部材３および第２吸音部材６が被
覆されていない表層部材２の裏面の両側下端部に
合成樹脂シート４１が被覆され、この合成樹脂シ
ート４１がアスフアルトシート４と一体的に接合
し一様な遮音部材となつていた。従つて、本実施
の自動車用カーペツトは吸音部材３、第２吸音部
材６周辺の床面から侵入する音を遮断する能力を
もつ。 A cross section of this automobile carpet similar to that shown in FIG. 1 is shown in FIG. In this automobile carpet, a surface layer member 2 is lined with a breathable material and is joined to a sound absorbing member 3 in a breathable state. In addition, a synthetic resin sheet 41 is coated on both lower ends of the back surface of the surface member 2 which is not covered with the sound absorbing member 3 and the second sound absorbing member 6, and this synthetic resin sheet 41 is integrally joined to the asphalt sheet 4 and is It was used as a kind of sound insulation material. Therefore, the automobile carpet of this embodiment has the ability to block the sound that enters from the floor surface around the sound absorbing member 3 and the second sound absorbing member 6.
この自動車用カーペツトは、表層部材の表面か
ら入る音を表層部材で反射することなく吸音部材
で吸音する。また、この吸音部材の存在しない両
側下端部や突部から入る音を遮音部材で遮音し、
この自動車用カーペツトの表面には出さないよう
にする。このように本自動車用カーペツトは、吸
音と遮音の両効果を奏する。
This automobile carpet absorbs sound entering from the surface of the surface layer member with the sound absorbing member without being reflected by the surface layer member. In addition, the sound insulating member is used to insulate the sound that enters from the lower ends and protrusions on both sides where the sound absorbing member does not exist.
Do not expose it to the surface of this automobile carpet. In this way, the present automobile carpet has both sound absorbing and sound insulating effects.
第１図、第２図は本考案の第１実施例に示す自
動車用カーペツトの断面図、第３図は第２実施例
の自動車用カーペツトの第１図と同様な断面図で
ある。第４図は本考案の第１実施例に示す自動車
用カーペツトの斜視図、第５図は本考案の実施例
で使用した自動車用カーペツト成形用型の斜視図
である。
図中、符号１は型、２は表層部材、３は吸音部
材、４は遮音部材、５は床、６は第２吸音部材を
示す。
1 and 2 are sectional views of an automobile carpet according to a first embodiment of the present invention, and FIG. 3 is a sectional view similar to FIG. 1 of an automobile carpet according to a second embodiment. FIG. 4 is a perspective view of an automobile carpet according to the first embodiment of the present invention, and FIG. 5 is a perspective view of a mold for forming an automobile carpet used in the embodiment of the present invention. In the figure, reference numeral 1 indicates a mold, 2 a surface member, 3 a sound absorbing member, 4 a sound insulating member, 5 a floor, and 6 a second sound absorbing member.
Claims (1)
側下端部を覆うカーペツト、フエルト等の表層
部材と、 該床の一部を覆い、該表層部材の裏面の一部
に通気性材料で一体的に接合されたシート状の
吸音部材と、 該吸音部材の裏面および該床と該両側下端部
を覆う該表層部材の裏面のうち該吸音部材の接
合されていない該表層部材の裏面とに一体的に
接合されたシート状の遮音部材とよりなること
を特徴とする自動車用カーペツト。 (2) 上記吸音部材は短繊維が個々に交差して絡み
合い、嵩密度20〜150Kg／m3の短繊維の集合体
であり、厚さ５〜50mmのシート状である実用新
案登録請求の範囲第１項記載の自動車用カーペ
ツト。 (3) 上記遮音部材は面密度が0.5〜30Kg／m2であ
つて気密性のシート状である実用新案登録請求
の範囲第１項記載の自動車用カーペツト。 (4) 上記遮音部材の裏面には、さらに、上記吸音
部材と同様な、上記表層部材よりも小さく一定
形状に栽断された第２吸音部材が接合されてい
る実用新案登録請求の範囲第１項記載の自動車
用カーペツト。 (5) 該表層部材と該吸音部材とを接合する通気性
材料は、常温でガラス状態にあり、少なくとも
部分的に溶融冷却される合成樹脂粉末である実
用新案登録請求の範囲第１項記載の自動車用カ
ーペツト。[Scope of Claim for Utility Model Registration] (1) A surface member such as carpet or felt that covers the floor of an automobile and the lower ends of both sides rising above the floor, and a part of the back surface of the surface member that covers a part of the floor. a sheet-like sound absorbing member integrally joined with a breathable material to the rear surface of the sound absorbing member and the rear surface of the surface layer covering the floor and the lower end portions of both sides to which the sound absorbing member is not joined; A carpet for an automobile comprising a sheet-like sound insulating member integrally joined to the back surface of a surface member. (2) The above-mentioned sound absorbing member is an aggregate of short fibers having a bulk density of 20 to 150 Kg/m 3 and is in the form of a sheet with a thickness of 5 to 50 mm. Scope of the Utility Model Registration Claim The automobile carpet according to item 1. (3) The automobile carpet according to claim 1, wherein the sound insulating member has an areal density of 0.5 to 30 kg/m 2 and is in the form of an airtight sheet. (4) A second sound absorbing member, which is similar to the sound absorbing member and cut into a certain shape smaller than the surface layer member, is further joined to the back surface of the sound insulating member. Carpet for automobiles as described in Section 1. (5) The breathable material joining the surface member and the sound absorbing member is a synthetic resin powder that is in a glass state at room temperature and is at least partially melted and cooled, as set forth in claim 1 of the utility model registration claim. Automotive carpet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6713882U JPS58168929U (en) | 1982-05-07 | 1982-05-07 | automotive carpet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6713882U JPS58168929U (en) | 1982-05-07 | 1982-05-07 | automotive carpet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58168929U JPS58168929U (en) | 1983-11-11 |
| JPS6325236Y2 true JPS6325236Y2 (en) | 1988-07-11 |
Family
ID=30076978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6713882U Granted JPS58168929U (en) | 1982-05-07 | 1982-05-07 | automotive carpet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58168929U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10334273B4 (en) * | 2003-07-25 | 2007-02-15 | Carcoustics Tech Center Gmbh | Sound-insulating composite part |
| JP5431783B2 (en) * | 2009-05-08 | 2014-03-05 | 寿屋フロンテ株式会社 | Automotive flooring |
-
1982
- 1982-05-07 JP JP6713882U patent/JPS58168929U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58168929U (en) | 1983-11-11 |
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