JPS63176562A - Floor material - Google Patents

Floor material

Info

Publication number
JPS63176562A
JPS63176562A JP555687A JP555687A JPS63176562A JP S63176562 A JPS63176562 A JP S63176562A JP 555687 A JP555687 A JP 555687A JP 555687 A JP555687 A JP 555687A JP S63176562 A JPS63176562 A JP S63176562A
Authority
JP
Japan
Prior art keywords
substrate
elastic body
flooring material
view
flooring
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
Application number
JP555687A
Other languages
Japanese (ja)
Other versions
JP2573198B2 (en
Inventor
勉 古川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP62005556A priority Critical patent/JP2573198B2/en
Publication of JPS63176562A publication Critical patent/JPS63176562A/en
Application granted granted Critical
Publication of JP2573198B2 publication Critical patent/JP2573198B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 Ｅ技術分野１ 本発明は、防音及び防振機能を備えた床材に関する。[Detailed description of the invention] E-technical field 1 The present invention relates to flooring materials with soundproofing and vibrationproofing functions.

［背景技術） 従来床材は例えば、合板よりなる基板の４−に化粧板（
突板）を張っただけのものであるため、床材に直ａ？！
Ｊｉ撃を受けたとき、床材を伝わって建物の床基材に振
動が伝わり、これが下階に伝わるという問題があり、防
音上好ましくなかつｔこ。例えば、マンシラン等の集合
１［宅では上階でｒ−供が走り回れば上階の人からやか
ましいとクレー１１がつくという問題があった。[Background technology] Conventional flooring materials include, for example, a decorative board (4) on a substrate made of plywood.
Since it is just a piece of veneer), it can be directly attached to the flooring material. !
When a building is hit by a jittering attack, vibrations are transmitted through the flooring materials to the building's floor base material, which causes the problem of being transmitted to the lower floors, which is undesirable in terms of soundproofing. For example, there was a problem in the group 1 of Manshiran etc. that if the r-children ran around on the upper floor, the people on the upper floor would call them clay 11 for making a noise.

１発明の目的１ 本発明は、上記の点に鑑みて発明したらのであって、そ
の目的とするところは、床祠そのものに防音及び防振機
能を持たせることができる床材を提供するにある。1 Objective of the Invention 1 The present invention was invented in view of the above points, and its purpose is to provide a flooring material that can provide soundproofing and vibrationproofing functions to the altar itself. .

［発明の開示１ 本発明の床材は、木質化粧板１の裏面に軟質シート２を
積層一体化すると共に軟質シート２の裏面に基板：（を
Ｍｔ層一体化し、この１１４板３の裏面に裏面が凹凸と
なった弾性体５を積層一体化して成ることを特徴とする
ものであっ′ζ、このような構成を採用することで１−
記した従来例の問題点を解決して本発明の［］的を達成
したものである。ｒなわち本発明の床材にあっては、軟
質シート２と木質化粧板１とを貼り合わせることで防音
ができ、史に弾性体５でも防音ができ、しかも弾性体５
の食面が凹凸となっＣいることで、いっそう振動がｆＩ
ａわりにくくなるようにしたものである。[Disclosure of the Invention 1] The flooring material of the present invention has a flexible sheet 2 laminated and integrated on the back surface of a wood decorative board 1, a substrate (Mt layer) is integrated on the back surface of the soft sheet 2, and a It is characterized by being formed by laminating and integrating an elastic body 5 with an uneven back surface. By adopting such a structure, 1-
The object of the present invention has been achieved by solving the problems of the conventional example described above. In other words, in the flooring material of the present invention, soundproofing can be achieved by laminating the soft sheet 2 and the wooden decorative board 1, and soundproofing can be achieved even with the elastic body 5;
Since the eclipse surface is uneven, the vibration becomes even more fI.
a It is designed to be less likely to break down.

以１・本発明を実施例により詳述する。木質化粧＋ｆ１
．１の大面に軟質ジートンを積層一体化すると共に軟質
シート２の刈面に基板３を積層一体化して＋１）す、Ｊ
！板：３には切溝４を設けζあり、更に基板；うの裏面
に弾性体５が積層一体化してあって床材６が構成しであ
る。ここで、木質化粧＠１は例えば合板１ｕの上に木質
化粧ｌｉｔ板１１）を積Ｍしたらのである。木質化粧板
１には第：３図のように化粧１１１板１ｂのみに床材６
の艮ｆ・方向乃至中方向に表面側溝７を設けたり、ある
いはｆＰＪ４図のように木質化粧板１のド部まで至る表
面側溝７を床材６の長手方向乃至中方向に設けたりして
もよいものである。上記表面側溝７は■溝あるいは切溝
である。1. The present invention will be explained in detail with reference to Examples. Wooden makeup + f1
．． +1) J
! The board 3 has grooves 4 and ζ, and an elastic body 5 is laminated and integrated on the back side of the board to form a flooring material 6. Here, the wood decoration @1 is obtained by stacking, for example, a wood decoration lit board 11) on top of the plywood 1u. For the wooden decorative board 1, as shown in Figure 3, there is a decorative 111, and only the flooring material 6 is for the board 1b.
Even if the surface gutter 7 is provided in the direction from the center direction of the floor material 6 to the middle direction, or the surface gutter 7 extending to the corner of the wooden decorative board 1 is provided in the longitudinal direction to the middle direction of the flooring material 6 as shown in Fig. fPJ4. It's good. The surface groove 7 is a groove or a cut groove.

このように表面側溝７を設けると床材６の自由度が高く
なりいっそう床衝撃音を小さくできるものである。軟質
シート２とは例えばゴムシート、合成樹脂シート、合成
＋３４脂発泡シート等の軟質シート状物の中に金属、無
機室等を充填し尚比重にしたものである。例えば−例を
あげると塩化ビニールシートの中に硫酸バリウムを）丸
太して軟質シート２を形成する。ここでｌｌ’ｆ、’比
重にした軟質シート２とは行過、面密度（１０２当たり
の重量）が２．（ｌｋ８７ｍ’以１−のものを言う。た
だ、面密度が重い物の）ｊが反り等の変形が少なくてす
み床材のおさまりがよい。また基板３とし一ζは例えば
合板が用いＣ）れる。基板３は切溝４を施した実施例の
もの（ｆ５１図乃至第７図に示ｒ）と切溝４を施してい
ない実施例のもの（ｆＰＪ１２図に示ｒ）とがある。１
１図乃至第７図に示す実施例て・は基板３の裏面に切溝
４が施しであるが、この切溝４は基＃、３の裏面側から
上方に向けて切り込んであり、軟質シート２に至るまで
切り込んだり、あるいは軟質シート２に至らない状態ま
で切り込んだりするものである。By providing the surface gutter 7 in this manner, the degree of freedom of the floor material 6 is increased, and floor impact noise can be further reduced. The soft sheet 2 is, for example, a soft sheet-like material such as a rubber sheet, a synthetic resin sheet, a synthetic +34 resin foamed sheet, etc., which is filled with metal, inorganic chambers, etc. to have a specific gravity. For example, the flexible sheet 2 is formed by logging barium sulfate into a vinyl chloride sheet. Here, the soft sheet 2 whose specific gravity is ll'f,' has a surface density (weight per 102) of 2. (Refers to 1-thickness of 87 m' or more. However, those with heavy areal density) J has less deformation such as warping and is good for flooring. Further, the substrate 3 is made of plywood, for example. There are two types of substrates 3: one with cut grooves 4 (r shown in Figures f51 to 7) and one without cut grooves 4 (r shown in Figure fPJ12). 1
In the embodiment shown in FIGS. 1 to 7, a cut groove 4 is provided on the back surface of the substrate 3, and this cut groove 4 is cut upward from the back surface side of the base plate 3. The cutting is performed until the soft sheet 2 is reached, or until the soft sheet 2 is not reached.

ここで切り込み深さの異なる切溝４を（］用して用いて
もよいものである。また切溝４は第７図（ａ）に示Ｖよ
うに床材６の長手方向に平行に１乃至複数個設けζらよ
く、あるいはＰｔＳ７図（ｂ）に示すように床材６の中
力向に１乃至複数個設けてもよく、あるいは第７図（ｃ
）に示すように床材６の長手方向及び中り向にそれぞれ
１乃至複数個設けてもよく、あるいは第７１２１（ｄ）
に示すように床材６の長手方向に灯して斜めｈ向に１乃
至複数個設けてもよく、あるいは第７図（（・）に示す
ように床材６の長手方向に対しζ斜めとなった斜め格Ｐ
状に設けたりしてもよいものである。また、切溝４とし
てはＲ４中及び溝深さは任意でよいが、特に下記の条件
の場合にその防振性が顕著に発揮される。Here, the cutting grooves 4 having different cutting depths may be used by using ( ).The cutting grooves 4 are arranged parallel to the longitudinal direction of the floor material 6 as shown in FIG. 7(a). Alternatively, one or more pieces may be provided in the middle force direction of the flooring 6 as shown in FIG.
), one or more pieces may be provided in the longitudinal direction and the middle direction of the flooring 6, or as shown in Section 7121(d).
As shown in FIG. 7, one or more lights may be provided in the longitudinal direction of the flooring material 6 and diagonally in the h direction, or as shown in FIG. became oblique case P
It may also be provided in a shape. Further, the cut groove 4 may have any R4 depth and groove depth, but its vibration damping properties are particularly exhibited under the following conditions.

溝深さ・・・基板３の１°１みの１／２以上の時。但し
、軟質シート２に至るまで切り込むのが 防振性能を最大限に発揮する。Groove depth: 1/2 or more of 1° of board 3. However, cutting all the way to the soft sheet 2 maximizes the anti-vibration performance.

溝中・・・・・・０．５輸【ｆｌ〜５１１１１１＋の時
（ただし、３ＩＩＩＩ６程度が最適と思われる。） ところでこのように切溝４を設けることで、床材６を１
云わる音の振動エネルイーを切溝４８１ｓ分で滅只させ
ることがＣきるのである。Ｐｔ５Ｖ図（Ｃ）１１１゜は
切溝４のピッチを示しており、１例として上げれば切溝
４のピッチｍｌｊ：艮手力向及び中ノｊ向とも約Ｇ　Ｏ
１１１１１１て゛あるが必ずしもこれにのみ限定される
ものではない。基板３の裏面１こは弾性体５が接着しで
あるが、添付図面の実施例にあっては弾性体５の表面（
すなわち上面）に不織布１４が取着してあって、この不
織布１４を介し一ζ弾性体５を基板３に！＆着しである
。弾性体５はゴム発泡体製である。弾性体５はその表裏
面に凹凸を形成したもの、あるいは裏面のみ１こ凹凸を
形成したものが４えられる。この中で例えば表裏面に凹
凸を形成したものを考えると、その凹凸の面積比がド記
のものの場合に特に防振性が高まる 凸部の面積比率・・・２５％〜７５％ 第８図、第９図、第１０図には表裏面（こ凹凸を形成し
た実施例が示しである。この実施例では弾性体５の裏面
のド方に突出する凸部１０部分に対応して表面側が凹ん
で凹溝１１となり、弾性体５の裏面の四部１２に対応し
て表面側が突出して凸山部１３となっ一ζいる。なお弾
性体５のド面側に突出する凸部１０を第１０図に示すよ
うに平坦面といておくと建物のスラブのような床基材の
上に敷いて例えば接着する場合の接着性が向上するもの
である。なお、１１１図には弾性体５の裏面にのみ凸部
１０と四部１２とを設けた実施例が示しである。In the groove... 0.5 mm
This means that the vibration energy of the sound can be destroyed by 481 seconds of cutting grooves. Pt5V diagram (C) 111° shows the pitch of the kerf 4. As an example, the pitch mlj of the kerf 4 is approximately G O in both the cutting direction and the middle direction.
111111, but is not necessarily limited to this. The elastic body 5 is bonded to the back surface of the substrate 3, but in the embodiment shown in the attached drawings, the surface of the elastic body 5 (
In other words, a non-woven fabric 14 is attached to the upper surface), and the 1ζ elastic body 5 is attached to the substrate 3 via this non-woven fabric 14! &I'm wearing it. The elastic body 5 is made of rubber foam. The elastic body 5 can be one with unevenness formed on its front and back surfaces, or one with only one unevenness formed on the back side. For example, if we consider a device with unevenness formed on the front and back surfaces, if the area ratio of the unevenness is as shown in the figure below, the area ratio of the convex portion will particularly increase the vibration damping performance...25% to 75% Figure 8 , FIG. 9, and FIG. 10 show an embodiment in which unevenness is formed on the front and back surfaces. It is concave to form a groove 11, and the front side protrudes to form a convex portion 13 corresponding to the four parts 12 on the back surface of the elastic body 5. Note that the convex portion 10 protruding toward the front side of the elastic body 5 is referred to as the 10th As shown in the figure, if the surface is flat, the adhesion will be improved when it is laid on a floor base material such as a building slab and bonded. An example in which the convex portion 10 and the four portions 12 are provided only in the embodiment is shown.

床材６には艮′ト方向の一側に嵌合突部８が突設し′ζ
あり、他１１１１１に嵌合凹部９が囲設しである。A fitting protrusion 8 is provided on one side of the floor material 6 in the mounting direction.
There is a fitting recess 9 in the other 11111.

しかして、上記のような構成の床材６は建物のスラブの
ような床シ（材の」−に直接載設したり、あるいは、弾
性下地材を床基材のＬに敷いてその上に載設したりｒる
ことができる。勿論法基材の上に根太等を組み、その上
に敷設するようにしてもよいものである。Therefore, the floor material 6 having the above-mentioned structure can be placed directly on a floor such as a slab of a building, or an elastic base material is laid on the L of the floor base material and then placed on top of it. Of course, it is also possible to construct a joist or the like on top of the base material and lay it on top of it.

［発明の効果１ 本発明にあっては、叙述のように木質化粧板の裏面に軟
質シートを積層一体化すると共に軟質シートのＪ！−面
に基板を積層一体化し、この基板の裏面に裏面が凹凸と
なった弾性体を積層一体化したので、軟質シートを貼り
合わせることで木質化粧板の共振をおさえ、床表面に衝
撃を加えた時の発生音を小さくでき、しかもｉ′層の弾
性体に上り防振ができ、更に弾性体の裏面が凹凸となっ
ているので、建物のスラブのような床茫材ｊｕｌ＋へ弾
性体からいっそう振動が伝わりにく（なり、より確天な
防音、防振効果を発揮でさるものである。[Effect of the invention 1 In the present invention, as described above, a soft sheet is laminated and integrated on the back side of a wooden decorative board, and the J! A substrate is laminated and integrated on the − side, and an elastic body with an uneven back surface is laminated and integrated on the back side of this substrate, so by bonding a soft sheet together, the resonance of the wooden decorative board is suppressed and the impact is applied to the floor surface. In addition, the elastic material of the i' layer can reduce vibrations, and since the back surface of the elastic material is uneven, it is possible to reduce the noise generated when This makes it more difficult for vibrations to be transmitted, and provides more reliable soundproofing and vibrationproofing effects.

【図面の簡単な説明】[Brief explanation of the drawing]

１１図は本発明の床材の一実施例の断面図、第２図は同
上の斜視図、＋５３図は本発明の床材の池の実施例の断
面図、第４図は同１−の更に他の実施例の断面図、第５
図は同上の更に飢の実施例の断面図、ｔｊＩＪ’６図は
同」二の更に池の実施例の断面図、第７図（ａ）（ｂ）
（ｅ）（ｄ）（ｃ）はそれぞれ床材に切溝を設けた各実
施例の底面図、第８図（ａ）（＋３）はそれぞれ弾性体
の表裏面に凹凸を設けた実施例の平面図及び断面図、Ｐ
ｔ５９図（、）（ｂ）は同上の他の実施例の斜視図及び
平面図、第１０図は同上の更に他の実施例の断面図、Ｐ
ｔＳｉ２図は同上の更に池の実施例の断面図、ｔｊＳ１
２図は本発明において基板に切溝を設けない場合の実施
例の斜視図であって、１は木質化粧板、２は軟質シート
、３は基板、５は弾性体である。 代理人　弁理Ｌ　石　１）艮　七 ５・・・弾性体 第２図 ψ１ （〜　　　ｊＱ　　　　　　　　　　　　　　　ｌ’Ｊ
第７図 （ａ）　　　　（ｂ）　　　　（ｃ）　　　　（ｄ）　
　　（ｅ）■− 第８図 第８は１ （ｂ） 第９図 （Ｇ）Figure 11 is a sectional view of an embodiment of the flooring material of the present invention, Figure 2 is a perspective view of the same as above, Figure +53 is a sectional view of an embodiment of the pond of the flooring material of the present invention, and Figure 4 is a sectional view of the same as 1-. Cross-sectional view of still another embodiment, No. 5
The figure is a sectional view of the embodiment of the same further pond as above, tjIJ'6 is a sectional view of the embodiment of the second further pond, Figures 7(a)(b)
(e), (d), and (c) are bottom views of each example in which grooves are provided in the flooring material, and Figures 8 (a) and (+3) are bottom views of each example in which unevenness is provided on the front and back surfaces of the elastic body, respectively. Plan view and sectional view, P
Figure t59 (,) (b) is a perspective view and a plan view of another embodiment same as the above, Fig. 10 is a sectional view of still another embodiment same as above, P
Figure tSi2 is a cross-sectional view of the embodiment of the same pond, tjS1
FIG. 2 is a perspective view of an embodiment in which the substrate is not provided with grooves in the present invention, in which 1 is a wooden decorative board, 2 is a soft sheet, 3 is a substrate, and 5 is an elastic body. Agent Attorney L Stone 1) 艮 75...Elastic body Fig. 2 ψ1 (~ jQ l'J
Figure 7 (a) (b) (c) (d)
(e) ■- Figure 8 8 is 1 (b) Figure 9 (G)

Claims (4)

【特許請求の範囲】[Claims] （１）木質化粧板の裏面に軟質シートを積層一体化する
と共に軟質シートの裏面に基板を積層一体化し、この基
板の裏面に裏面が凹凸となった弾性体を積層一体化して
成ることを特徴とする床材。(1) A flexible sheet is laminated and integrated on the back side of a wood decorative board, a substrate is laminated and integrated on the back side of the soft sheet, and an elastic body with an uneven back surface is laminated and integrated on the back side of this substrate. flooring material. （２）基板に切溝を設けて成ることを特徴とする特許請
求の範囲第１項記載の床材。(2) The flooring material according to claim 1, characterized in that the substrate is provided with grooves. （３）基板に切溝が設けてないことを特徴とする特許請
求の範囲第１項記載の床材。(3) The flooring material according to claim 1, characterized in that the substrate is not provided with grooves. （４）木質化粧板の表面に表面側溝を設けて成ることを
特徴とする特許請求の範囲第１項記載の床材。(4) The flooring material according to claim 1, characterized in that a surface gutter is provided on the surface of the wooden decorative board.
JP62005556A 1987-01-13 1987-01-13 Floor material Expired - Lifetime JP2573198B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62005556A JP2573198B2 (en) 1987-01-13 1987-01-13 Floor material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62005556A JP2573198B2 (en) 1987-01-13 1987-01-13 Floor material

Publications (2)

Publication Number Publication Date
JPS63176562A true JPS63176562A (en) 1988-07-20
JP2573198B2 JP2573198B2 (en) 1997-01-22

Family

ID=11614471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62005556A Expired - Lifetime JP2573198B2 (en) 1987-01-13 1987-01-13 Floor material

Country Status (1)

Country Link
JP (1) JP2573198B2 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63241264A (en) * 1987-03-27 1988-10-06 松下電工株式会社 Wooden floor material
JPS641855A (en) * 1987-06-20 1989-01-06 Noda Corp Soundproof floor material
JPS642940U (en) * 1987-06-25 1989-01-10
JPS642939U (en) * 1987-06-25 1989-01-10
JPS6423535U (en) * 1987-07-31 1989-02-08
JPS6423536U (en) * 1987-07-31 1989-02-08
JPS6431834U (en) * 1987-08-21 1989-02-28
JPS6443135U (en) * 1987-09-11 1989-03-15
JPH0194529U (en) * 1987-12-15 1989-06-22
JPH0245227U (en) * 1988-09-21 1990-03-28
JPH02164978A (en) * 1988-12-15 1990-06-25 Noda Corp Sheet-shaped cushioning material and soundproof floor material
JPH02139250U (en) * 1989-04-26 1990-11-21
JPH03169970A (en) * 1989-11-27 1991-07-23 Matsushita Electric Works Ltd Woody flooring
JPH0431947U (en) * 1990-07-11 1992-03-16
JPH0633585A (en) * 1991-11-22 1994-02-08 Mitsuboshi Belting Ltd Soundproof floor material
JPH0633580A (en) * 1992-03-11 1994-02-08 Mitsuboshi Belting Ltd Cushioning sheet and soundproof floor material using the same
JPH074015A (en) * 1993-10-05 1995-01-10 Noda Corp Sheet-like buffer material and sound insulating floor material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821623U (en) * 1981-08-04 1983-02-10 ミサワホ−ム株式会社 flooring
JPS5998949A (en) * 1982-11-30 1984-06-07 松下電工株式会社 Sound-proof and vibration dampening panel
JPS6083145U (en) * 1983-11-15 1985-06-08 伊弉末　邦夫 Surface material for concrete floors
JPS6185608U (en) * 1984-11-12 1986-06-05
JPS61137964A (en) * 1984-12-10 1986-06-25 株式会社ブリヂストン Floor panel material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821623U (en) * 1981-08-04 1983-02-10 ミサワホ−ム株式会社 flooring
JPS5998949A (en) * 1982-11-30 1984-06-07 松下電工株式会社 Sound-proof and vibration dampening panel
JPS6083145U (en) * 1983-11-15 1985-06-08 伊弉末　邦夫 Surface material for concrete floors
JPS6185608U (en) * 1984-11-12 1986-06-05
JPS61137964A (en) * 1984-12-10 1986-06-25 株式会社ブリヂストン Floor panel material

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63241264A (en) * 1987-03-27 1988-10-06 松下電工株式会社 Wooden floor material
JPS641855A (en) * 1987-06-20 1989-01-06 Noda Corp Soundproof floor material
JPS642940U (en) * 1987-06-25 1989-01-10
JPS642939U (en) * 1987-06-25 1989-01-10
JPS6423535U (en) * 1987-07-31 1989-02-08
JPS6423536U (en) * 1987-07-31 1989-02-08
JPS6431834U (en) * 1987-08-21 1989-02-28
JPS6443135U (en) * 1987-09-11 1989-03-15
JPH0194529U (en) * 1987-12-15 1989-06-22
JPH0245227U (en) * 1988-09-21 1990-03-28
JPH02164978A (en) * 1988-12-15 1990-06-25 Noda Corp Sheet-shaped cushioning material and soundproof floor material
JPH02139250U (en) * 1989-04-26 1990-11-21
JPH03169970A (en) * 1989-11-27 1991-07-23 Matsushita Electric Works Ltd Woody flooring
JPH0431947U (en) * 1990-07-11 1992-03-16
JPH0633585A (en) * 1991-11-22 1994-02-08 Mitsuboshi Belting Ltd Soundproof floor material
JPH0633580A (en) * 1992-03-11 1994-02-08 Mitsuboshi Belting Ltd Cushioning sheet and soundproof floor material using the same
JPH074015A (en) * 1993-10-05 1995-01-10 Noda Corp Sheet-like buffer material and sound insulating floor material

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