JPS585249A - Sound insulating core material and panel structure using said sound insulating core material - Google Patents
Sound insulating core material and panel structure using said sound insulating core materialInfo
- Publication number
- JPS585249A JPS585249A JP10366681A JP10366681A JPS585249A JP S585249 A JPS585249 A JP S585249A JP 10366681 A JP10366681 A JP 10366681A JP 10366681 A JP10366681 A JP 10366681A JP S585249 A JPS585249 A JP S585249A
- Authority
- JP
- Japan
- Prior art keywords
- core material
- soft resin
- sound insulating
- sound
- insulating core
- 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.)
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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】
本発明、遮音性能の優れたセル状構造体からなる遮音芯
材及び該遮音芯材を用いたパネル構造体に係るものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sound insulation core material made of a cellular structure with excellent sound insulation performance, and a panel structure using the sound insulation core material.
今日、工場騒音あるいは飛行機、自動車などの交通騒音
等の騒音が大きな社会問題となり、これら騒音発生地域
では騒音を遮断するために、壁材内に遮音芯材を装填し
たり、遮音芯材が充填されたドア、間仕切り、雨戸等の
パネル構造体を用いている。一方、従来から壁材あるい
はパネル構造体には、強度的に優れ、しかも軽量で取扱
いの簡単なハニカムコア等の気柱を並設したセル状構造
体が充填されたものがあるが、これら充填されたセル状
構造体紘気柱−這過状である上に、セル状構造体Ｏ厚さ
、即ち気柱の長ｉ１が騒音ＯｎＩ動数に岡関しえｐする
こともあって鐘音性能が劣る欠点があつ九、そこで、竜
ル状構造体０−ＩＮＫ軟質樹脂製シートを固着して鐘音
性能を肉よさせようという試み４あるが、ｅｏ４ｏは、
軟質樹脂ｍｙ −トが一面のみＫ１１着されてｉる九め
芯材として使用する場合、方向性が―瞭に生じてしｔ−
取ａｖ％が煩雑となル、そのため両ｍＫ軟ｊｔ樹脂製シ
ートを固着して方向性を牌消す為ようｋしてｖｈえ、し
かしながら軟質樹脂製シートをセル状構造体０ｊ１１面
に固着した％Ｏであって亀気柱長さは依然として長−た
め、騒音振動数の閂真域が広く十分な鐘音効果を得るこ
とがて自なｉ実状にあつえ。Nowadays, noise such as factory noise or traffic noise from airplanes and automobiles has become a major social problem, and in areas where these noises occur, in order to block out the noise, sound-insulating core materials are loaded into wall materials, or sound-insulating core materials are filled in. Panel structures such as doors, partitions, and shutters are used. On the other hand, conventional wall materials or panel structures have been filled with cellular structures in which air columns are arranged in parallel, such as honeycomb cores, which have excellent strength, are lightweight, and are easy to handle. In addition to the cellular structure having a creeping shape, the thickness of the cellular structure, that is, the length of the air column, i1, affects the noise OnI dynamic, which affects the bell sound performance. Therefore, there has been an attempt to improve the bell sound performance by fixing a dragon-shaped structure 0-INK soft resin sheet, but eo4o has the following drawbacks:
If the soft resin is coated with K11 on only one side and used as a core material, the directionality will clearly occur.
The av% is complicated, so I fixed both mK soft resin sheets to erase the directionality, but the soft resin sheets were fixed to the cellular structure 0j11 side. 0, and the length of the tortoise column is still long, so the bolt range of the noise frequency is wide and it is difficult to obtain a sufficient chime effect.
本発明は、上記の如き実状Ｋ１１ｌみこれらの欠点を一
掃すべく創案されたもＯであって、軟質樹層製シートを
用％Ａ九層音芯材であっても、七ｏｍｔ芯材の方向性を
解消し、しかも気柱長さをＸ＃０厚さよルも小さくし得
て、量貴振動歇Ｏ岡真域を可及的狭くして十分な鐘音性
能を得ることがで自る遮音芯材及び遮音芯材を用−九パ
ネル構造体を提供することを目的とした％Ｏ″′Ｃある
。The present invention was devised in order to eliminate the drawbacks of the above-mentioned actual situation, and even if it is a nine-layer sound core material using a sheet made of soft tree layer, it can be It is possible to eliminate the directivity, reduce the length of the air column and reduce the thickness of the air column, and narrow the oscillation interval Ooka true region as much as possible to obtain sufficient bell sound performance. The purpose of the present invention is to provide a nine-panel structure using a sound insulating core material and a sound insulating core material.
本発明の構成を、１ＩｉｌＫ示畜れえ実施例に基−て説
明する。オす、第１ＩＩ人及びＩＫ示す第１実１１ＩＡ
例の總音芯材ム紘、塩化ビニル、７１７エチレン、を五
等の軟質＊ｍｓｇシート１を挾んで、同径の気Ｓ：雪を
遊設し良略岡厚のハニカムコア等のセル状構造体３，３
を、気柱宜が同一位置となるように１着したものであみ
。The structure of the present invention will be explained based on an illustrative example. Os, 1st II person and IK 1st fruit 11IA
For example, the core material Muhiro, vinyl chloride, 717 ethylene, is sandwiched between 5 grade soft*msg sheets 1, and air of the same diameter is loosely placed in a cell shape such as a honeycomb core of good thickness. Structure 3, 3
, and the one that finished first so that Kibashira was in the same position.
まえ、第２図に示す第２実施例の遮音芯材Ｂは、二枚の
軟質樹脂製シート１，１をセル状構造体３に多層状に積
層固着しえものであゐ、第３１１に示す第３実施例の遮
音ＳＯは、軟質樹脂製シート１を挾んで厚さの異なった
セル状構造体３，３ａを固着し友もの、第４閣に示す第
４実施例の鍾音板りは、軟質＊＊製シート１を挾んてセ
ル状構造体３、ｓを気柱！が甑■状にずれ良状態で固着
し九もの、宜九、ｌ＋ｓ図に示す第５実施例０燗青板８
は、軟質樹ｍｓｉシート１ｔ−挾んで、気柱２の径が＾
なりたセル状構造体３．３ｂｔａ着したものが七れぞれ
示されていゐ、しかしながら、本発明のものはこれら実
施ｆｌＫ限定されるもＯではなく。First, the sound insulating core material B of the second embodiment shown in FIG. The sound insulation SO of the third embodiment shown is a sound insulation board in which a soft resin sheet 1 is sandwiched and cellular structures 3, 3a of different thickness are fixed together. , sandwiching the soft** sheet 1, the cellular structure 3, and the air column! 5th Example 0 Ceramic Plate 8, which is fixed in good condition with a shift in the shape of a grid.
The diameter of the air column 2 is 1 t of soft wood msi sheet held in between.
The resulting cellular structure 3.3bta is shown in Figure 1, however, the present invention is not limited to these implementations.
さらに、セル状構造体３は、気柱意形状を円柱状ＯもＯ
と角柱状０４０＠異ならしめ喪もの、あるいは、隣接す
る気柱が連通状となるように気柱周ｉ１１に連通孔を穿
設した％Ｏ″ｅｈりてもよ（，１良、上記各実施例を組
み合せえもｏ”ｅ島ってもよく、豪は、軟質樹脂製シー
）１（Ｕｌｌ儒ｆＣ−ｋｋ状構造体を固着し丸ものであ
ればよめ。Furthermore, the cellular structure 3 has an air column shape of cylindrical shape O or O.
and the prismatic shape 040@different, or the communication hole is drilled around the air column i11 so that the adjacent air columns are connected. Examples may be combined or o"e island, and Australia is good if it is a soft resin sheet) 1 (UlllfC-kk shaped structure fixed and round.
一方、第６１１には、パネル構造体に係り尭＠Ｏ−実施
例が示されて−るが１本実施
ル構造体ｒを構成す為金属製網板かｂｙＩ＃威１れ九表
ｎｉｌ！４，４０所定間隔を存し九対角ＩＩ関に．前記
遮音芯材のうちｊ１１夷；ｍａで示す層管芯材ムが充填
され九％のを示した．ｌＩＩ中、Ｓ紘枠材である。On the other hand, No. 611 shows an example of a panel structure, but in order to construct one structure, a metal mesh plate is used. There are 4,40 predetermined intervals and nine diagonals II. Of the sound insulating core materials, the laminated tube core material indicated by ma was filled at 9%. It is S-Ko frame material in III.
しかしながら、本発−０４０紘これに＠ｙＩＬされる４
０″Ｃ″鉱なく、両ｗ１［間に，軟質樹脂層シー）０両
面にセル状構造体が固着された鐘音芯＃が充填されてー
れはよく、１九、パネル構造体Ｏ製造にあ九って杜、既
Ｋｌ１着虞形され九値晋Ｓ材を両開板間にす／ドイツテ
状に介装してホットメルト系などＯＩＩ着剤″１？固着
する方法％ｈ為が、パネル構造体が、ホットメルト系接
着剤を裏ＩＩＫＩＩＩ有しえ、両面板間に芯材を介装し
た後に，ホットプレス行＠ｓ ：２−ルドゾレス行１を
経て圧着成形する方式の％のＫあっては、あらかじめ軟
質＊＊製シート０両Ｗｉにホットメルト系接着剤を塗布
してお亀、＊ｍ＊ｉｅに末鎖着状態のＩＩ青芯ｉを介装
し九後に＊ットプレス行ＩＩＫ、コールドプレス行−を
経て、Ａネル構造体ＯＪＲ形と同ＩＩに遮音芯材を固着
成形するようにしてもよめ． ゛
次に、叙述Ｏ如く構成し九本発明の作用について説明す
る．まず、遮音芯材ＫＴｈ％／’ｍて唸、軟質樹１１１
１Ｖ−ｚが芯＃１ＩＩＩで祉なく中間部にあるから、た
とえ一枚の軟質ｍｍ製シート１を用−九ものであって４
遮音芯材０両ｍ拡セル状構造体３が露呈して方向性がな
くなる．従って壁材あゐいはパネル構造体等に介装する
ｌｌｌ０取扱−が簡単にな為．しか４、セル状構造体ｓ
の気柱長位、軟質＊＊製ート１を１１会して分断され九
短めものになるため，履督振動数ＯＭ調域拡高域儒に移
る九め、軟質樹脂ｌＩ４￥−）ＩＫ１４１Ｉ音エネルギ
ーの吸収と合わせて優れ九履晋轡性を奏することかで皇
る。However, Honsha-040 Hiro is @yIL 4
0"C" without mineral, both w1 [between, soft resin layer seam] 0 both sides are filled with bell tone core # with cellular structure fixed. 19. Manufacture of panel structure O In the Nia Kutte Mori, the existing Kl1-shaped Ku-value Shin-S material is inserted between the two open plates/deutsche style and OII adhesive such as hot melt type is used to fix the material. %K of a method in which the panel structure has a hot melt adhesive on the back side IIKIII, and after interposing a core material between the double-sided plates, press-forms through hot press row @s: 2-rudosoles row 1. If so, apply a hot melt adhesive to the soft ** sheet 0 Wi in advance, insert the II blue core i with the end chain attached to *m*ie, and then press *t press IIK. The sound insulating core material may be fixedly molded on the A-flank structure OJR type and II through cold pressing.Next, the operation of the present invention will be explained with the structure as described in OJR. , Sound insulation core material KTh%/'m, Soft wood 111
Since 1V-z is awkwardly located in the middle of core #1III, even if one soft mm sheet 1 is used for 4
The sound insulating core material 0 m wide cell-like structure 3 is exposed and directionality is lost. Therefore, it is easy to handle wall materials, panel structures, etc. But 4, cellular structure s
Since the long air column, soft resin 1 is divided into 11 parts and becomes 9 shorter, the 9th, soft resin lI 4 yen -) IK141I moves to the retarded frequency OM key range expansion range yen. It is known for its ability to absorb sound energy as well as its excellent performance.
また、１ｓ！！笑＊例の遮音芯材ＢＣ）ように複数０軟
質樹脂製シート１を用−九４０紘、気柱最が一段と小さ
くなるうえに１軟質１１ｊｌｌｌｐ−トｘｆｌｌｌＫは
密封され九気柱層−ＩＩＸｙ＃成される丸め、ｍ膏性能
の向上はもちろん、熱伝導率が低くなって断熱性能の優
れたもＯＫなる。一方、菖３実ｍａｅ鐘青芯材０は、両
セル構造体ｓ、ｓａｏ厚−Ｉｉが異なるため気柱長に変
化が出る。従って、軟質＊、ａｔ製シー）ｌｊｌｉ伺で
Ｏ＃綴周波黴が異１ｋ）、總晋愉簡Ｏ陶土を図ることが
で１する。馬４１１膣１１１０層費芯材りは、気柱２が
■■状にずれて訃）、１１えｓｓ実実施Ｎ０膏膏芯材１
紘気柱！ＯＩＩが異なってか）、これらのもの性、一方
Ｏ−にル状構造体３から他方のセル状構造体３へＯ騒音
伝達ｏ ＩＩ ｓ騒音エネルギーＯ分散を図ることがで
きて中は）鐘音性能Ｏ向上を図ることがで詣る。Also, 1s! ! Lol *Example sound insulation core material BC) Using multiple 0 soft resin sheets 1-940 hiro, the air column becomes even smaller, and the 1 soft 11 jllllp-txflllK is sealed and the nine air column layers-IIXy# Not only does the rounding and molding performance improve, but the thermal conductivity is lowered, resulting in excellent heat insulation performance. On the other hand, in the case of the iris 3-mae and bell-blue core material 0, the air column length changes because both cell structures s and sao thickness -Ii are different. Therefore, it is possible to make a soft*, at-made clay, with different O# spelling frequency molds. Horse 411 vagina 1110 Layer cost core material, air column 2 shifted in ■■ shape and died), 11 Ess actual implementation N0 plaster core material 1
Hiroki Pillar! O II is different), these characteristics allow noise transmission from one O to the other cell-like structure O II s noise energy O can be dispersed, and inside is a bell) It is a great place to visit to improve sound performance.
尚、上記実施例に用ｖｈる軟質樹脂製シー） Ｉ Ｋｓ
鉄、鉛部Ｏ金属粉末を混入しておけば、芯材金体のｍｓ
度も増加して一層層音性能を向上することがで自為、オ
九、パネル構造体０１！用例紘、後述の／々ネル構造体
ＰＫ＠定される４ｏ′ｃａな（、セル状構造体が使用さ
れていゐ様々な分野で饅州で龜ることは−うｔて％−＆
−０
一方％ｇ＠１ｌｓｃ線、上記各層音芯材ム〜ｎｏうち、
菖ｌ実施例の値！芯材Ａを介装し九パネル構造体ｒが例
示されて−るが、この様なパネル構造体デは、従来のよ
うにセル状構造体Ｏみを用い友もＯある一線セル状構造
体の表１１１に軟質＊ｍ製シートを固着し九％のよ）は
鐘音性能が優れること線勿論であゐが、従来Ｏζｏｓｏ
Ａネル構造体は、芯材と１に為セル状構造体が両表面板
間に介装される一枚の厚ｖｈ４０をＭ％Ａて一九九め、
パネル構造体自体の剛性が必要以上に高くなって騒音に
対してあえかも一体化された一枚ｏｌｌＷｂ＊として作
用してしま−、層管性能が劣る要因と４なって％Ａ九九
−かしながら、本発−に係るＡネル構造体ｒは、ｊ１６
１１に示し九も〇〇ように、中間部に軟質樹脂製シー）
Ｉｔ介装しえ鐘音芯材ムを用いて−るため、中間Ｏ軟質
樹脂製シート１が緩衝材となり、パネル構造体７０剛性
を必要以上に高（すること ｊがなくなって、）
専ル構造体Ｆ□−げ及び剪断強度を下げることになゐ、
この丸めパネル構造体ｒは、軟質樹脂製シート１を境に
しえ柔軟性Ｏある多重化構造にすることがで龜、騒音に
対する鐘音芯材ムの優れ九層音性能に合わせて従来に＊
％／％値音性能を得ることがで龜る。In addition, the soft resin sheath used in the above examples)
If iron and lead part O metal powder is mixed, the ms of the core metal body
By increasing the frequency and further improving the sound performance, the panel structure 01! As an example, the cell-like structure PK@determined 4o'ca (described later) is the most common in various fields where cellular structures are used.
-0 On the other hand, %g @ 1lsc wire, each layer of the above tone core material ~ no,
Value of irises example! Although a nine-panel structure R with a core material A interposed therein is shown as an example, such a panel structure D is different from a conventional one-line cellular structure using a cellular structure O and also having a member O. Table 111 shows that the bell sound performance is excellent when the soft *m sheet is fixed (9%), but the conventional Oζoso
The A-nel structure has a core material and a cell-like structure interposed between both surface plates, with a thickness of vh40 and M%A of 199,
The rigidity of the panel structure itself becomes higher than necessary, and it acts as an integrated single sheet ollWb* against noise, which is a factor in the poor performance of the layered pipe, resulting in a %A factor of 4. However, the A-nel structure r according to the present invention is j16
As shown in 11, there is a soft resin seam in the middle part)
Since the intervening core material is used, the intermediate soft resin sheet 1 acts as a buffer material, making the panel structure 70 stiffer than necessary.
Dedicated structure F
This rounded panel structure r has a flexible multilayered structure with a soft resin sheet 1 as a boundary, and is designed to match the excellent nine-layer sound performance of the bell sound core material against noise.
%/% value makes it faster to obtain sound performance.
以上要するに１本ｌ１ｔ１４は、軟質樹１ｉｌｙ−）０
両」１気柱を並設したハニカムコア等Ｏ−にル状構造体
を、気柱が閉畠されるように固着してあみから、軟質樹
脂製シートを用−で鐘音性能を向上できる鐘音芯材であ
っても、軟質１１１１ｍｌｌＩＩシート拡セル状構シー
開拡セルされえ構造になりて鐘音芯材の方向性をなくす
ことができるうえに１気柱長は芯材金体の厚さよりｔ小
さくし得て、量膏Ｏ岡＊ｉｉ動数域をより高域側にして
可及的狭くて龜、中間＠０軟質樹脂製シートの振動エネ
ルギーの徴収作用と合せて優れ九層音性能を得ることか
で龜るものである。In short, one l1t14 is a soft tree 1ily-)0
The bell sound performance can be improved by fixing a loop-shaped structure such as a honeycomb core with air columns arranged side by side so that the air columns are closed, and then using a soft resin sheet. Even with the bell sound core material, the soft 1111ml II sheet has an expanded cell structure, which eliminates the directionality of the bell sound core material. The thickness can be made smaller than the thickness, and the dynamic range can be made higher to make it as narrow as possible. Combined with the vibration energy collection effect of the middle @ 0 soft resin sheet, it has an excellent nine-layer structure. Obtaining sound performance is a problem.
しかも、この鐘音芯材を、所定間隔を存して対向配設す
る両表面板間に充填し九ノネＡＩＩＩＩＩＬ体にあって
は、層音芯材轡有Ｏ層管性簡Ｏうえに、中関郁Ｏ軟１１
１脂製シートがノネル構造体自体Ｏ自げ及び剪断強ｆを
下げて柔軟性ＯＴｏる多重化構造となるが故に生じる遮
音性能とが相俟って従来にない遮音性能を得ることがで
きるものである。Moreover, in the case of a nine-one AIIIL body in which this bell sound core material is filled between both surface plates that are arranged facing each other with a predetermined interval, in addition to the layer sound core material and the O-layer pipe material, Iku Nakaseki O Soft 11
1. Combined with the sound insulation performance that occurs because the resin sheet becomes a multiplexed structure that lowers the nonel structure itself and the shear strength, and has flexibility, it is possible to obtain unprecedented sound insulation performance. It is.
図面は本発明に係る遮音芯材及び遮音芯材を用いたパネ
ル構造体の実施例を示したものであるが、第１図及びＢ
はそれぞれ第１実施例の遮音芯材の斜視図及び断面図、
第２図〜第５図は第２実施例〜第５実施例の遮音芯材の
断面図、第６図はパネル構造体の要部断面図である。
図中、１は軟質樹脂製シート、２は気柱、３、３ａ、３
ｂはセル状構造体、４は表面板、５は枠材、Ａ〜Ｅは第
１−第５実施例の遮音芯材、Ｆはパネル構造体である。
特許出願人 三和シャッター工業株式会社第３図The drawings show examples of the sound insulation core material and the panel structure using the sound insulation core material according to the present invention.
are a perspective view and a sectional view of the sound insulation core material of the first embodiment, respectively,
2 to 5 are sectional views of the sound insulating core materials of the second to fifth embodiments, and FIG. 6 is a sectional view of the main part of the panel structure. In the figure, 1 is a soft resin sheet, 2 is an air column, 3, 3a, 3
b is a cellular structure, 4 is a surface plate, 5 is a frame material, A to E are sound insulation core materials of the first to fifth embodiments, and F is a panel structure. Patent applicant: Sanwa Shutter Industry Co., Ltd. Figure 3
Claims (6)
カムコア等のセル状構造体を、気柱が閉塞されるように
固着してあることを特徴とする遮音芯材。(1) A sound insulating core material characterized in that a cellular structure such as a honeycomb core in which air columns are arranged in parallel is fixed to both sides of a soft resin sheet so that the air columns are occluded.
た特許請求０＠Ｎ１１１１１項記載の層管芯材。(2) A layered tube core material according to Patent Claim 0@N11111, which is constructed in a multilayered manner using a plurality of soft resin sheets.
さを異ならしめた特許請求Ｏｓ園１１１１１記載の鐘音
芯材。(3) The bell sound core material according to patent claim Osen 11111, in which the thicknesses of the O-cell structures on both sides sandwiching the soft resin sheet are different.
気柱を、互ＶｈＫＩＩＩＩ状と１に為ようにずらせて固
着し九特許請求０ｍ１ｌｌ第１項記載Ｏ鐘管芯材。(4) Le-shaped structure O on both sides sandwiching the soft resin sheet
The core material for a bell tube according to claim 1, wherein the air columns are shifted and fixed in a mutually VhKIII-like manner.
気柱ｌｌを異ならしめ九轡許請求０１１■ＩＩＩＪＪ［
記載Ｏｌｌｌ基音。(5) Le-shaped structure O on both sides sandwiching the soft resin sheet
Request for permission to make the air column ll different 011■IIIJJ[
Ollll fundamental tone listed.
軟質樹脂製シートの両ＩＮＫセル状構造体が固着される
遮音芯材を充填したことを特徴とする遮音芯材を用いた
パネル構造体。(6) On both sides of IIT, which are arranged facing each other with a predetermined interval,
A panel structure using a sound insulating core material, characterized in that it is filled with a sound insulating core material to which both INK cell structures made of soft resin sheets are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10366681A JPS585249A (en) | 1981-07-02 | 1981-07-02 | Sound insulating core material and panel structure using said sound insulating core material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10366681A JPS585249A (en) | 1981-07-02 | 1981-07-02 | Sound insulating core material and panel structure using said sound insulating core material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS585249A true JPS585249A (en) | 1983-01-12 |
| JPS64213B2 JPS64213B2 (en) | 1989-01-05 |
Family
ID=14360104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10366681A Granted JPS585249A (en) | 1981-07-02 | 1981-07-02 | Sound insulating core material and panel structure using said sound insulating core material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585249A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01182439A (en) * | 1988-01-13 | 1989-07-20 | Natl House Ind Co Ltd | Floor panel |
| JP2011026815A (en) * | 2009-07-24 | 2011-02-10 | Inoac Corp | Sound absorption panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54134178U (en) * | 1978-03-06 | 1979-09-18 | ||
| JPS55134241U (en) * | 1979-03-15 | 1980-09-24 | ||
| JPS57194506U (en) * | 1981-06-05 | 1982-12-09 |
-
1981
- 1981-07-02 JP JP10366681A patent/JPS585249A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54134178U (en) * | 1978-03-06 | 1979-09-18 | ||
| JPS55134241U (en) * | 1979-03-15 | 1980-09-24 | ||
| JPS57194506U (en) * | 1981-06-05 | 1982-12-09 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01182439A (en) * | 1988-01-13 | 1989-07-20 | Natl House Ind Co Ltd | Floor panel |
| JP2011026815A (en) * | 2009-07-24 | 2011-02-10 | Inoac Corp | Sound absorption panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS64213B2 (en) | 1989-01-05 |
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