JPH074015A - Sheet-like buffer material and sound insulating floor material - Google Patents
Sheet-like buffer material and sound insulating floor materialInfo
- Publication number
- JPH074015A JPH074015A JP27999493A JP27999493A JPH074015A JP H074015 A JPH074015 A JP H074015A JP 27999493 A JP27999493 A JP 27999493A JP 27999493 A JP27999493 A JP 27999493A JP H074015 A JPH074015 A JP H074015A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- floor
- flooring
- cushioning material
- cushioning
- 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.)
- Granted
Links
Landscapes
- Floor Finish (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はシート状緩衝材および少
なくとも制振材を含む基材の裏面にシート状緩衝材を接
着した防音床材に関し、特に家屋の階上部分に使用して
床面の衝撃による固体音の階下への伝搬を防止するたと
えば床材用緩衝材および防音床材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof flooring material in which a sheet-shaped cushioning material and a base material containing at least a vibration damping material are adhered to the backside of the sheet-shaped cushioning material, and particularly to a floor surface used for the upper part of a house. For example, the present invention relates to a cushioning material for floor materials and a soundproof floor material for preventing solid sound from propagating to the downstairs due to the impact of.
【０００２】[0002]
【従来技術】この種の防音床材としては、例えば床材本
体の裏面に発泡倍率３〜１０倍の軟質高発泡層とエンボ
ス加工を施された発泡倍率１．５〜３倍の軟質低発泡層
とを順次積層形成したもの（実開昭５０−４９９１７
号）や、木質板の下面全体に複数層よりなる遮音用発泡
体を貼着し且つ隣接する層における該遮音用発泡体の発
泡倍率を異なるよう構成したもの（実開昭６１−４７３
３９号）が提案されている。2. Description of the Related Art A soundproof flooring of this type is, for example, a soft high-foaming layer having a foaming ratio of 3 to 10 times and an embossed soft low-foaming having a foaming ratio of 1.5 to 3 times on the back surface of the flooring body. What is formed by sequentially laminating layers (Actually published No. 50-49917)
No.) or a sound insulation foam made up of a plurality of layers is attached to the entire lower surface of a wooden board, and the foaming ratios of the sound insulation foams in the adjacent layers are made different (Actual No. Sho 61-473).
No. 39) has been proposed.
【０００３】これらの防音床材においては緩衝材として
発泡体が用いられ、該発泡体が衝撃を受けて圧縮ないし
変形されるためその変形の間衝突時間が長くなり、運動
量の変化即ち力積、衝撃力の時間的積分値は一定であっ
ても、衝撃力のピーク値や衝撃固有周波数を低下させ、
基板への衝撃入力エネルギーを低減させ、もって衝撃に
よる音や振動を低下させることができるものである。In these soundproof floor materials, a foam is used as a cushioning material, and the foam is subjected to impact to be compressed or deformed, so that the collision time becomes long during the deformation, and a change in momentum, that is, an impulse, Even if the temporal integration value of impact force is constant, the peak value of impact force and impact natural frequency are reduced,
It is possible to reduce the impact input energy to the substrate and thereby reduce the sound and vibration caused by the impact.
【０００４】また、かかる発泡体の如き緩衝材が床材の
裏面に接合された場合、床材の曲げ振動で生じる該緩衝
材の伸縮変形によって衝撃エネルギーが吸収され、緩衝
作用をなすものである。Further, when a cushioning material such as the foam is bonded to the back surface of the flooring material, the shock energy is absorbed by the expansion and contraction deformation of the cushioning material caused by the bending vibration of the flooring material, thereby providing a cushioning effect. .
【０００５】[0005]
【発明が解決しようとする課題】これら従来のとたとえ
ば床材に用いる緩衝材または防音床材において十分な防
音効果をもたらすためには床材と緩衝材との厚さ比を適
切に設定する必要があり、一般に緩衝材を床材の２〜３
倍の厚さとして用いられる。しかしながら緩衝材の厚さ
をこのように設定すると、床材自体の撓みが大きくな
り、床材の実部分が破損したり実部に不陸が発生したり
する。In order to bring about a sufficient soundproof effect in these conventional and cushioning materials or soundproof flooring materials used for flooring materials, for example, it is necessary to appropriately set the thickness ratio of the flooring material to the cushioning material. There is generally 2 to 3 cushioning materials for floor materials.
Used as double the thickness. However, if the thickness of the cushioning material is set in this way, the flexure of the floor material itself becomes large, and the actual portion of the floor material is damaged or the solid portion is uneven.
【０００６】また、緩衝材が余りにも軟質であるため、
床上を歩行する際の歩行感が悪化し、更にピアノ、冷蔵
庫、家具等の重量物が置かれて該床材に集中荷重が加え
られると、緩衝材が圧縮されてしまい、その緩衝効果が
大幅に低下ししてしまう。更には、このような大きな荷
重が長期間に亙って加えられると、緩衝材自体の復元力
が弱いために床面が波打ち、隣接する床材との突合わせ
部で段差が発生する等の問題点があった。Moreover, since the cushioning material is too soft,
If the feeling of walking when walking on the floor deteriorates, and if a heavy load such as a piano, refrigerator, or furniture is placed on the floor material and a concentrated load is applied to the floor material, the cushioning material will be compressed, resulting in a significant cushioning effect. Will fall to. Furthermore, when such a large load is applied for a long period of time, the cushioning material itself has a weak restoring force, which causes the floor surface to wavy, resulting in a step at the abutting portion with the adjacent floor material. There was a problem.
【０００７】[0007]
【課題を解決するための手段とその作用】本発明は上記
従来のたとえば床材に用いられる緩衝材および防音床材
の問題点を解決するため、次のような手段をとったもの
である。すなわち、例えば床材に用いる緩衝材および少
なくとも制振材を含む床材基板の裏面に、シート状緩衝
材を接着した防音床材において、表裏両面に複数の凸部
１を有し、前記凸部１の表裏面に対する面積比が３０〜
６０％であり、表面と裏面の凸部の面積比が異なるシー
ト状緩衝材を用いたものである。Means for Solving the Problem and Its Action The present invention takes the following means in order to solve the problems of the conventional cushioning materials and soundproof flooring materials used for flooring materials, for example. That is, for example, in a soundproof flooring material in which a sheet-shaped cushioning material is adhered to the back surface of a flooring material substrate including a cushioning material used for a flooring material and at least a damping material, a plurality of convex portions 1 are provided on both front and back surfaces, The area ratio of 1 to the front and back surfaces is 30 to
It is 60%, and the sheet-shaped cushioning material in which the area ratio of the convex portions on the front surface and the rear surface is different is used.
【０００８】本発明緩衝材および防音床材は上記の構成
とることにより、緩衝材または床材に与えられた衝撃エ
ネルギーを吸収する優れた緩衝作用を有し、また、適度
な硬度を有するため、床材としての使用に際して、不快
な歩行感を与えることもないという特色を有するもので
ある。The cushioning material and the soundproof flooring material according to the present invention having the above-mentioned structure have an excellent cushioning effect for absorbing the impact energy given to the cushioning material or the flooring material, and have appropriate hardness. It has a feature that it does not give an unpleasant walking feeling when used as a floor material.
【０００９】[0009]
【構成の説明】以下、本発明を、図面に基づき詳細に説
明する。図１は、本発明のシート状緩衝材２の表面図で
あり図中、１は円形凸部である。後述の説明は凸部が円
形の場合を代表例として説明する。このシート状緩衝材
の表裏面に夫々形成される円形凸部は、円柱状もしくは
切頭円錐状の形状であり、一体成形または加圧成形によ
って形成される。[Description of Configuration] Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a surface view of a sheet-shaped cushioning material 2 of the present invention, in which 1 is a circular convex portion. In the following description, the case where the convex portion is circular will be described as a typical example. The circular convex portions formed on the front and back surfaces of the sheet-shaped cushioning material have a columnar shape or a truncated cone shape, and are formed by integral molding or pressure molding.
【００１０】さらに、この円形凸部１は、緩衝材面にお
いて占める割合が、面積比で３０〜６０％となるよう成
形する。なお、表面と裏面の円形凸部面積は異なる面積
比となるように構成する。これは、円形凸部１の割合が
６０％より大きい場合、床材基板との接触面積が大き
く、従って単位面積当たりの伸縮変形量が小さくなるた
め床材基板Ｘに加えられた衝撃エネルギーを吸収する緩
衝効果が低下してしまう。また、床材基板Ｘの裏面とシ
ート状緩衝材２の表面側の凸部との間、及び該シート状
緩衝材２の裏面側の凸部と床下地Ｙとの間に形成される
吸音室としての働きを有する空間部が少なくなるため、
防音効果も低下してしまう。さらに３０％より小さい場
合は、重量物による荷重により、沈みが発生しやすく好
ましくないためである。さらに、シート状緩衝材２の表
面と裏面の円形凸部の面積比を異なるものとすることに
より、円形凸部の面積比の大きい面より面積比の小さい
面のほうが、単位面積当たりの荷重が小さくとも伸縮変
形を生ずることとなる。したがって、床材基板の表面に
衝撃が加えられたとき、シート状緩衝材の円形凸部の面
積比が小さい面の円形凸部の伸縮変形が起こり、次いで
面積比の大きい面の円形凸部の伸縮が起こるという２段
階の衝撃吸収が起こることとなる。また、衝撃力が小さ
いときは、面積比の小さい面の円形凸部の収縮のみで衝
撃を吸収することができるものである。このような特性
を有するシート状緩衝材であるため、床材上部で発生し
た伝搬音の高音域を面積比の小さい面で吸収し、低音域
を面積比の大きい面で吸収し、高音域から低音域全般に
渡って効率よく吸収するものである。Further, the circular convex portion 1 is molded so that the area ratio of the circular convex portion 1 is 30 to 60%. The areas of the circular convex portions on the front surface and the back surface have different area ratios. This is because when the ratio of the circular convex portion 1 is larger than 60%, the contact area with the floor material substrate is large, and therefore the amount of expansion and contraction per unit area is small, so that the impact energy applied to the floor material substrate X is absorbed. The buffering effect will decrease. Further, a sound absorbing chamber formed between the back surface of the floor material substrate X and the convex portion on the front surface side of the sheet cushioning material 2, and between the convex portion on the back surface side of the sheet cushioning material 2 and the floor base Y. Since the space that has the function of
The soundproof effect is also reduced. Further, if it is less than 30%, sinking is likely to occur due to the load of heavy objects, which is not preferable. Further, by making the area ratio of the circular convex portions on the front surface and the back surface of the sheet-shaped cushioning material 2 different, the load per unit area is smaller on the surface having a smaller area ratio than on the surface having a large area ratio of the circular convex portions. Even if it is small, expansion and contraction will occur. Therefore, when an impact is applied to the surface of the flooring substrate, the circular convex portion of the surface of the sheet-shaped cushioning material having a small area ratio of the circular convex portions expands and contracts, and then the circular convex portion of the surface having a large area ratio of the circular convex portion There are two stages of shock absorption in which expansion and contraction occur. Further, when the impact force is small, the impact can be absorbed only by the contraction of the circular convex portion of the surface having a small area ratio. Since it is a sheet-shaped cushioning material with such characteristics, the high-frequency range of the propagation sound generated in the upper part of the floor material is absorbed by the surface with a small area ratio, and the low-frequency range is absorbed by the surface with a large area ratio. It efficiently absorbs over the entire low range.
【００１１】シート状緩衝材の表面と裏面の凸部面積を
異なったものとするためには、同一寸法の凸部を表面と
裏面で異なる数に形成するか、あるいは、凸部の数は同
一で凸部の寸法を変えるか、さらには、凸部の寸法およ
び数を異なるように形成することにより実施できる。ま
た、シート状緩衝材の凸部面積比の大きい側を床材基材
裏面に接着するように積層しても、逆に凸部面積比の小
さい側を床材基材裏面に接着するように積層しても良
く、いずれの場合も前述の衝撃吸収および防音の効果は
ほぼ同等に得られるものである。また、この円形凸部１
の大きさは、その直径が１０ｍｍ〜２５ｍｍの範囲にな
るよう成形するのが好ましい。直径が１０ｍｍのとき
は、１００ｃｍ２当りの円形凸部１は３０個〜６０個、
２５ｍｍのときは、１００ｃｍ２当りの円形凸部１は６
個〜１２個が夫々均等に配置されることとなる。In order to make the convex areas of the front surface and the rear surface of the sheet-shaped cushioning material different, the convex portions having the same size are formed in different numbers on the front surface and the back surface, or the number of the convex portions is the same. Can be carried out by changing the dimensions of the convex portions or by forming the convex portions in different sizes and numbers. Also, even if the sheet-shaped cushioning material is laminated so that the side with a large convex area ratio is adhered to the back surface of the flooring material base, the side with a small convex area ratio is bonded to the back surface of the flooring material base. They may be laminated, and in any case, the above-mentioned effects of shock absorption and soundproofing are almost the same. In addition, this circular convex portion 1
The size is preferably molded so that the diameter is in the range of 10 mm to 25 mm. When the diameter is 10 mm, there are 30 to 60 circular convex portions 1 per 100 cm 2 .
At 25 mm, the number of circular protrusions 1 per 100 cm 2 is 6
The number of pieces to 12 pieces is evenly arranged.
【００１２】これは、円形凸部１の直径が２５ｍｍ以上
の場合、床材基板Ｘ裏面とシート状緩衝材２との間、及
びシート状緩衝材２と床下地面との合計接触面積は同じ
でも、接触部分の１単位が大きくなるため、円形凸部１
の単位面積当りの伸縮変形量が小さくなり、床材基板Ｘ
に加えられた衝撃エネルギーを吸収する緩衝効果が低下
してしまう。This is because when the diameter of the circular convex portion 1 is 25 mm or more, even if the total contact area between the back surface of the floor material substrate X and the sheet cushioning material 2 and between the sheet cushioning material 2 and the floor base surface is the same. , 1 unit of the contact area becomes large, so the circular protrusion 1
The amount of elastic deformation per unit area of
The buffering effect of absorbing the impact energy applied to is reduced.
【００１３】また、円形凸部１の直径が１０ｍｍ以下の
場合は、凸部１単位が耐え得る重量が小さくなる為、重
量物の荷重により沈みが発生し易いためである。Further, when the diameter of the circular convex portion 1 is 10 mm or less, the weight that the unit of the convex portion can withstand becomes small, and the sinking is likely to occur due to the load of the heavy object.
【００１４】また、このシート状緩衝材２としては、ゴ
ム系、合成樹脂あるいは発泡合成樹脂系、アスファルト
系などのシート状物によって形成される。The sheet-like cushioning material 2 is formed of a sheet-like material such as rubber, synthetic resin or foam synthetic resin, and asphalt.
【００１５】具体的には例えば、エチレンとシクロペン
タジエンより成る開環重合モノマー（ノルボルネンモノ
マー）及び、ポリエチレン発泡体などが挙げられる。シ
ート状緩衝材２の素材の硬度は、３０〜６５度程度のも
のであることが好ましい。これは、３０度未満である
と、床として施工したときに、ピアノや冷蔵庫、家具等
の重量物による荷重により、沈みが発生しやすく、また
６５度を越えるような剛性のものであると緩衝力のエネ
ルギー吸収が十分になされず、防音効果を低下させるた
めである。Specific examples thereof include ring-opening polymerization monomers (norbornene monomers) composed of ethylene and cyclopentadiene, and polyethylene foams. The hardness of the material of the sheet-shaped cushioning material 2 is preferably about 30 to 65 degrees. If it is less than 30 degrees, when it is constructed as a floor, sinking is likely to occur due to the load from heavy objects such as pianos, refrigerators, furniture, etc., and if it is more than 65 degrees, it is buffered. This is because the energy absorption of force is not sufficiently performed and the soundproof effect is reduced.
【００１６】図２は、図１のシート状緩衝材２のＡ−Ａ
部断面図である。表面側の円形凸部１と裏面側の円形凸
部１の位置は、同じ位置になるよう形成しても、互い違
いになるよう形成してもよい。FIG. 2 shows the sheet-like cushioning material 2 of FIG.
FIG. The positions of the front surface-side circular protrusions 1 and the back surface-side circular protrusions 1 may be the same or different.
【００１７】以上、シート状緩衝材２の凸部１が、円形
の場合について説明したが、凸部１の形状は円形に限定
されるものではなく、例えば方形や台形等の多角柱形状
または多角錐形状であってもよい。Although the case where the convex portion 1 of the sheet-shaped cushioning material 2 is circular has been described above, the shape of the convex portion 1 is not limited to a circular shape, and may be, for example, a polygonal column shape such as a square or a trapezoid or a multi-column shape. It may have a pyramid shape.
【００１８】床材基板Ｘとしては合板、木質繊維板、木
削片板（パーティクルボード、フレークボード、ストラ
ンドボード、ＯＳＢ等）、挽き材等の任意の板状体が用
いられる。これらの板状体を単独で床材基板Ｘとする
か、種々複合した積層体を床材基板Ｘとしその裏面にシ
ート状緩衝材２を接着することにより、防音床材を構成
することができる。As the floor material substrate X, an arbitrary plate-like material such as plywood, wood fiber board, wood shaving board (particle board, flake board, strand board, OSB, etc.), sawing material, etc. is used. A soundproof floor material can be constructed by using these plate-like bodies as the flooring material substrate X alone or by using a laminate of various composites as the flooring material substrate X and adhering the sheet-shaped cushioning material 2 to the back surface thereof. .
【００１９】また、床材基板Ｘの表面には、必要に応
じ、柄模様の印刷形式、化粧単板（スライス単板、ハー
フランド単板、ロータリー単板、人工突板）貼り、合成
樹脂化粧シート或いは合成樹脂発泡化粧シート貼り、化
粧紙又は合成樹脂含浸化粧紙若しくは化粧合成紙貼り等
の任意化粧を施すことができる。On the surface of the flooring substrate X, if necessary, a pattern printing pattern, a decorative veneer (slice veneer, half land veneer, rotary veneer, artificial veneer), synthetic resin decorative sheet are attached. Alternatively, an arbitrary makeup such as a synthetic resin foam decorative sheet pasting, a decorative paper, a synthetic resin impregnated decorative paper or a pasting synthetic paper can be applied.
【００２０】床材基板Ｘの木口部には、相決り加工、本
実加工等の実加工が施される。また、床材基板Ｘを前記
化粧材、板状拘束材及び制振材を組み合わせることによ
り構成することができる。板状拘束材としては、例えば
合板、木質繊維板、木削片板（パーティクルボード、フ
レークボード、ストランドボード、ＯＳＢ等）、合成樹
脂板、金属板、コンクリート系板などの板状体を用いる
ことができる。The opening portion of the floor material substrate X is subjected to actual processing such as phase-determination processing and actual processing. Further, the floor material substrate X can be configured by combining the decorative material, the plate-shaped restraining material, and the vibration damping material. As the plate-like restraint member, for example, a plate-like body such as plywood, wood fiber board, wood shaving board (particle board, flake board, strand board, OSB, etc.), synthetic resin board, metal board, concrete board, etc. should be used. You can
【００２１】また、制振材としては、ゴム系、合成樹
脂、あるいは発泡合成樹脂系、アスファルト系のシート
状物、鉛粉、酸化鉄他比重４以上の重質物などが混合さ
れたシート状物などを用いることができる。少なくとも
３材を組み合わせた床材基板Ｘとしては、表面側から化
粧材／板状拘束材／制振材の順で積層したもの又は、表
面側から化粧材／制振材／板状拘束材の順で積層したも
のが挙げられる。As the vibration damping material, a rubber-based, synthetic resin-based, or foamed synthetic resin-based, asphalt-based sheet material, lead powder, iron oxide and other heavy materials having a specific gravity of 4 or more are mixed. Etc. can be used. The flooring material substrate X in which at least three materials are combined is a laminate of decorative material / plate-like constraining material / damping material in that order from the surface side, or a decorative material / damping material / plate-like constraining material from the surface side. Examples include those laminated in order.
【００２２】さらに、３材の組み合わせ例としては、例
えば、図３に示すように、化粧材として表面に任意化粧
の施された表面化粧単板３を用い、その裏面に板状拘束
材５ａ，５ｂ及び制振材４ａ及び４ｂとを積層したもの
を床材基板Ｘとし、その裏面にシート状緩衝材２を積層
したもの。また、図４は一層の板状拘束材５ａのみとし
たものなどを挙げることができる。Further, as an example of the combination of three materials, for example, as shown in FIG. 3, a surface decorative veneer 3 having an arbitrary makeup applied to the surface is used as a decorative material, and a plate-like restraint member 5a, The floor material substrate X is formed by laminating 5b and the damping materials 4a and 4b, and the sheet-shaped cushioning material 2 is laminated on the back surface thereof. Further, FIG. 4 may include a single-layer plate-shaped restraint member 5a only.
【００２３】このように、剛性の高い板状拘束材５ａ，
５ｂと、その粘弾性を有する制振材４ａ，４ｂを設ける
ことにより、床材基板Ｘに与えられた緩衝力による曲げ
振動に伴なう伸縮力及び振動エネルギーが、板状拘束材
５ａ，５ｂと、この板状拘束材５ａ，５ｂに拘束された
制振材４ａ，４ｂとの間で生じるせん断変形により吸収
させるため、緩衝材層への衝撃の伝搬は、減少され優れ
た防音効果を示す。As described above, the plate-like restraint member 5a having high rigidity,
By providing 5b and the damping materials 4a and 4b having viscoelasticity, the expansion and contraction force and the vibration energy accompanying the bending vibration due to the buffering force applied to the floor material substrate X are reduced to the plate-shaped restraining materials 5a and 5b. And the vibration-damping materials 4a, 4b constrained by the plate-shaped constraining materials 5a, 5b are absorbed by the shear deformation, so that the propagation of the shock to the cushioning material layer is reduced and an excellent soundproof effect is exhibited. .
【００２４】なお、シート状緩衝材２の裏面側に更に公
知の制振シート（遮音シートとも呼ばれる）及び／また
は弾性シートを貼着して、これらシート材を介して床下
地Ｙに接着するようにしてもよい。制振シートは、一般
に合成ゴムと合成樹脂とを主成分とし、例えばエチレン
・プロピレンゴム（ＥＰＯＭ）より成り、ゴム硬度が６
０〜８０度程度のものであり、鉄粉や酸化鉄粉等の重質
物が混合されて１〜１．２若しくはそれ以上の重量とさ
れより遮音性を向上されたものである。A known vibration damping sheet (also called a sound insulating sheet) and / or an elastic sheet is further attached to the back surface side of the sheet-shaped cushioning material 2 so as to be bonded to the floor base Y through these sheet materials. You may The vibration damping sheet generally contains synthetic rubber and synthetic resin as main components, and is made of, for example, ethylene-propylene rubber (EPOM) and has a rubber hardness of 6
It is about 0 to 80 degrees, and a heavy material such as iron powder or iron oxide powder is mixed to obtain a weight of 1 to 1.2 or more, and the sound insulation is further improved.
【００２５】このような制振シートは、振動エネルギー
を吸収して防音効果を高めると共に、複合体としての床
材全体の曲げに対して抵抗する引張強度を与える。また
弾性シートは、例えば発泡倍率３〜３０倍のポリオレフ
ィン発泡体であって、第二の緩衝材として振動エネルギ
ーを吸収し、不陸の発生を防止・吸収し、その弾性を通
じて適度な歩行感を与える等の効果を生ずる。また、こ
れらのシート材をシート状緩衝材２とコンクリート等の
床下地Ｙとの間に介在させることにより、接着性を向上
させることができる。Such a vibration damping sheet absorbs vibration energy to enhance the soundproof effect, and at the same time, provides a tensile strength that resists bending of the entire floor material as a composite. The elastic sheet is, for example, a polyolefin foam having a foaming ratio of 3 to 30 times, absorbs vibration energy as a second cushioning material, prevents and absorbs occurrence of unevenness, and provides a proper walking feeling through its elasticity. An effect such as giving is produced. Further, by interposing these sheet materials between the sheet cushioning material 2 and the floor base Y such as concrete, the adhesiveness can be improved.
【００２６】[0026]
【実施例】図５に示すような床材基板Ｘとシート状緩衝
材２からなる床材を用い軽量床衝撃音レベルの測定を行
なった。ただし、図中、ポリエチレンの円形凸部１は、
表面側の直径が１８ｍｍで面積比が５１％、裏面側の直
径が１５ｍｍで面積比が３５％のものを用いた。EXAMPLE A lightweight floor impact sound level was measured using a floor material consisting of a floor material substrate X and a sheet-shaped cushioning material 2 as shown in FIG. However, in the figure, the circular convex portion 1 of polyethylene is
The diameter of the front side was 18 mm and the area ratio was 51%, and the diameter of the back side was 15 mm and the area ratio was 35%.
【００２７】また比較例として、床材基板Ｘは同様のも
のを用い、凹凸ポリエチレンを、円形凸部１を直径が８
ｍｍで面積比が５０％のもの（比較例１）、円形凸部１
を直径が３０ｍｍで面積比５０％のもの（比較例２）に
変えた床材を用い、同様の測定を行なった。オクターブ
バンド周波数別に、軽量床衝撃音性能Ｌ−５０の基準内
（合格）か、基準外（不合格）かの結果を、表−１に示
す。As a comparative example, the same floor material substrate X is used, and the convex and concave polyethylene is used and the circular convex portion 1 has a diameter of 8 mm.
mm with an area ratio of 50% (Comparative Example 1), circular convex portion 1
The same measurement was performed using a flooring material having a diameter of 30 mm and an area ratio of 50% (Comparative Example 2). Table-1 shows the results of whether the floor impact sound performance L-50 is within the standard (pass) or out of the standard (fail) for each octave band frequency.
【表１】 [Table 1]
【００２８】図５において ８：表面化粧単板 ０．２５ｍ／ｍ ５ａ：合板（板状拘束材） ２．３ ｍ／ｍ ４ａ： 制振シート（制振材） ０．８ ｍ／ｍ ５ｂ：合板（板状拘束材） ２．３ ｍ／ｍ ４ｂ：制振シート（制振材） ０．８ ｍ／ｍ ５ｃ：合板（板状拘束材） ２．３ ｍ／ｍ ２：凹凸ポリエチレン 全体の厚さ １５ｍ／ｍIn FIG. 5, 8: Veneered surface veneer 0.25 m / m 5a: Plywood (plate-like restraint material) 2.3 m / m 4a: Damping sheet (damping material) 0.8 m / m 5b: Plywood (plate-like restraint material) 2.3 m / m 4b: Damping sheet (damping material) 0.8 m / m 5c: Plywood (plate-like restraint material) 2.3 m / m 2: Uneven polyethylene Thickness 15m / m
【００２９】なおＬ−５０の基準を説明するため、表
２、表３を示す。Tables 2 and 3 are shown to explain the criteria of L-50.
【表２】 [Table 2]
【表３】 [Table 3]
【００３０】[0030]
【発明の効果】本発明のシート状緩衝材は、床材の裏面
に接着された場合、床材に与えられた衝撃エネルギーを
２段階に渡って吸収する優れた緩衝作用を有し、しかも
高音域から低音域の全般に渡って優れた防音性能を示す
ものである。また、適度な硬度を有するため、床材とし
ての使用に際して不快な歩行感を与えることもない。さ
らに、このシート状緩衝材は床材基板の裏面に接着して
なる防音床材は、極めて優れた防音効果を示し、しかも
この床材は簡単な構造であって、従来から市販されてい
る材料を用いて安価に製造することができる。The sheet-like cushioning material of the present invention has an excellent cushioning effect of absorbing the impact energy applied to the flooring material in two steps when it is adhered to the back surface of the flooring material, and has a high cushioning effect. It exhibits excellent soundproofing performance in the entire range from the sound range to the low range. Further, since it has an appropriate hardness, it does not give an unpleasant walking feeling when used as a floor material. Furthermore, this sheet-shaped cushioning material is a sound-insulating flooring material that is adhered to the back surface of the flooring material substrate, and exhibits an extremely excellent sound-insulating effect. Moreover, this flooring material has a simple structure and is a material that has been commercially available in the past. Can be manufactured at low cost.
【図１】 本発明緩衝材の平面図、FIG. 1 is a plan view of a cushioning material of the present invention,
【図２】 図１Ａ−Ａ断面図、FIG. 2 is a sectional view of FIG.
【図３】 本発明床材の第１構成例の断面図、FIG. 3 is a cross-sectional view of a first configuration example of the flooring material of the present invention,
【図４】 同じく第２構成例の断面図、FIG. 4 is a sectional view of a second configuration example,
【図５】 実施例の対象となった床材の断面図、FIG. 5 is a cross-sectional view of a floor material that is a target of the embodiment,
１：円形凸部、２：シート状緩衝材、３：表面化粧単
板、４ａ．４ｂ：制振材、５ａ，５ｂ，５ｃ：板状拘束
材、Ｘ：床材基板、Ｙ：床下地。1: Circular convex part, 2: Sheet-shaped cushioning material, 3: Surface decorative veneer, 4a. 4b: damping material, 5a, 5b, 5c: plate-like restraining material, X: floor material substrate, Y: floor base material.
Claims (3)
１の表裏面に対する面積比が３０〜６０％であり、表面
と裏面の凸部の面積比が異なることを特徴とするシート
状緩衝材。1. A plurality of convex portions 1 are provided on both front and back surfaces, the area ratio of the convex portions 1 to the front and back surfaces is 30 to 60%, and the area ratio of the convex portions on the front surface and the back surface is different. Sheet-shaped cushioning material.
基板Ｘの裏面に接着した防音床材。2. A soundproof flooring material in which the sheet-shaped cushioning material 2 according to claim 1 is adhered to the back surface of a flooring material substrate X.
材、制振材を積層した請求項２記載の防音床材。3. The soundproof flooring material according to claim 2, wherein a surface decorative material, a plate-shaped restraining material, and a vibration damping material are laminated as the flooring material substrate X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5279994A JP2990402B2 (en) | 1993-10-05 | 1993-10-05 | Sheet-shaped cushioning material and soundproof flooring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5279994A JP2990402B2 (en) | 1993-10-05 | 1993-10-05 | Sheet-shaped cushioning material and soundproof flooring |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31499188A Division JPH02164978A (en) | 1988-12-15 | 1988-12-15 | Sheet-shaped cushioning material and soundproof floor material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH074015A true JPH074015A (en) | 1995-01-10 |
| JP2990402B2 JP2990402B2 (en) | 1999-12-13 |
Family
ID=17618832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5279994A Expired - Lifetime JP2990402B2 (en) | 1993-10-05 | 1993-10-05 | Sheet-shaped cushioning material and soundproof flooring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2990402B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013036211A (en) * | 2011-08-05 | 2013-02-21 | Jsp Corp | Vibration-proof floor structure and vibration-proof material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63176562A (en) * | 1987-01-13 | 1988-07-20 | 松下電工株式会社 | Floor material |
-
1993
- 1993-10-05 JP JP5279994A patent/JP2990402B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63176562A (en) * | 1987-01-13 | 1988-07-20 | 松下電工株式会社 | Floor material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013036211A (en) * | 2011-08-05 | 2013-02-21 | Jsp Corp | Vibration-proof floor structure and vibration-proof material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2990402B2 (en) | 1999-12-13 |
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