JPH0772440B2 - Floor material - Google Patents
Floor materialInfo
- Publication number
- JPH0772440B2 JPH0772440B2 JP61254287A JP25428786A JPH0772440B2 JP H0772440 B2 JPH0772440 B2 JP H0772440B2 JP 61254287 A JP61254287 A JP 61254287A JP 25428786 A JP25428786 A JP 25428786A JP H0772440 B2 JPH0772440 B2 JP H0772440B2
- Authority
- JP
- Japan
- Prior art keywords
- floor
- sheet
- substrate
- groove
- elastic body
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 ［技術分野］ 本発明は、防音及び防振機能を備えた床材に関する。Description: TECHNICAL FIELD The present invention relates to a flooring material having 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上に化粧板（突
板）を張っただけのものであるため、床材に直接衝撃を
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
しくなかった。例えば、マンション等の集合住宅では上
階で子供が走り回れば下階の人からやかましいとクレー
ムがつくという問題があった。[Background Art] Conventional floor materials are, for example, simply a decorative board (projection board) stretched on a board made of plywood. Therefore, when the floor material is directly impacted, the floor material is transmitted through the floor material. There is a problem that vibration is transmitted to the base material, which is transmitted to the lower floor, which is not preferable for soundproofing. For example, in a condominium such as an apartment, there is a problem that if a child runs around on the upper floor, people on the lower floor complain that it is noisy.
［発明の目的］ 本発明は、上記の点に鑑みて発明したものであって、そ
の目的とするところは、床材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。[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide a flooring material capable of imparting soundproofing and vibration damping functions to the flooring material itself. is there.
［発明の開示］ 本発明の床材は、木質化粧板１の裏面にシート状物２を
積層一体化すると共にシート状物２の裏面に基板３を積
層一体化し、基板３に切溝４を設け、この基板３の裏面
に表面に凹凸を有した弾性体５を積層一体化して成るこ
とを特徴とするものであって、このような構成を採用す
ることで上記した従来例の問題点を解決して本発明の目
的を達成したものである。すなわち本発明の床材にあっ
ては、シート状物２と木質化粧板１とを貼り合わせるこ
とで第１段階の防音ができ、更に基板３に切溝４を設け
ることで第２段階の防音ができ、更に弾性体５で第３段
階の防音ができるようにしたものである。また、基板３
の裏面に積層一体化した弾性体５の表面には凹凸が設け
てあるので、みかけのヤング率を小さくすることができ
て、制振性を上げることができる。DISCLOSURE OF THE INVENTION In the flooring material of the present invention, the sheet-like material 2 is laminated and integrated on the back surface of the wooden decorative board 1, the substrate 3 is laminated and integrated on the back surface of the sheet-like material 2, and the kerf 4 is formed on the substrate 3. It is characterized in that an elastic body 5 having an unevenness on the surface is laminated and integrated on the back surface of the substrate 3, and the problems of the above-described conventional example are solved by adopting such a configuration. This has been solved to achieve the object of the present invention. That is, in the flooring material of the present invention, the soundproofing in the first stage can be performed by bonding the sheet-like material 2 and the wooden decorative board 1, and the soundproofing in the second stage can be performed by further providing the cut groove 4 on the substrate 3. In addition, the elastic body 5 can perform the soundproofing in the third stage. Also, the substrate 3
Since unevenness is provided on the surface of the elastic body 5 laminated and integrated on the back surface of the, the apparent Young's modulus can be reduced and the vibration damping property can be improved.
以下本発明を実施例により詳述する。木質化粧板１の裏
面にシート状物２を積層一体化すると共にシート状物２
の裏面に基板３を積層一体化してあり、基板３には切溝
４を設けてあり、更に基板３の裏面に弾性体５が積層一
体化してあって床材６が構成してある。ここで、木質化
粧板１は例えば合板1aの上に木質化粧単板1bを積層した
ものである。木質化粧板１には第３図のように化粧単板
1bのみに床材６の長手方向乃至巾方向に表面側溝７を設
けたり、あるいは第４図のように木質化粧板１の下部ま
で至る表面側溝７を床材６の長手方向乃至巾方向に設け
たりしてもよいものである。上記表面側溝７はＶ溝ある
いはＵ溝である。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。シート状物２としては例えばゴムシート、
合成樹脂シート、合成樹脂発泡シート、軟質遮音シート
（合成樹脂シートの中に金属、無機質等の高比重物質を
充填したもの）、不織布、布等が考えられる。要はシー
ト状物であれば任意のものであればよい。ただ、面密度
（m2当たりの重量）が重い物の方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としては例
えば合板が用いられる。そしてこの基板３の裏面に切溝
４が施してあるが、この切溝４は基板３の裏面側から上
方に向けて切り込んであり、シート状物２に至るまで切
り込んだり、あるいはシート状物２に至らない状態まで
切り込んだりするものである。ここで切り込み深さの異
なる切溝４を併用して用いてもよいものである。また切
溝４は第７図(a)に示すように床材６の長手方向に平行
に１乃至複数個設けてもよく、あるいは第７図(b)に示
すように床材６の巾方向に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
巾方向にそれぞれ１乃至複数個設けてもよく、あるいは
第７図(d)に示すように床材６の長手方向に対して斜め
方向に１乃至複数個設けてもよく、あるいは第７図(e)
に示すように床材６の長手方向に対して斜めとなった斜
め格子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、溝巾及び溝深さは任意でよい。Hereinafter, the present invention will be described in detail with reference to Examples. The sheet-like material 2 is laminated and integrated on the back surface of the wooden decorative board 1 as well as the sheet-like material 2
The substrate 3 is laminated and integrated on the back surface of the substrate 3, the cut groove 4 is provided in the substrate 3, and the elastic body 5 is laminated and integrated on the back surface of the substrate 3 to form the flooring 6. Here, the wooden decorative board 1 is, for example, a laminated wooden decorative single board 1b on a plywood 1a. As shown in Fig. 3, the decorative veneer 1 is made of wood.
The surface side groove 7 is provided in the longitudinal direction or width direction of the floor material 6 only in 1b, or the surface side groove 7 reaching the lower part of the wooden decorative board 1 is provided in the longitudinal direction or width direction of the floor material 6 as shown in FIG. It may be used. The front side groove 7 is a V groove or a U groove. By providing the surface side groove 7 in this way, the degree of freedom of the floor material 6 is increased and the floor impact sound can be further reduced. The sheet-like material 2 is, for example, a rubber sheet,
Synthetic resin sheets, synthetic resin foam sheets, soft sound-insulating sheets (synthetic resin sheets filled with high specific gravity substances such as metals and inorganic substances), non-woven fabrics, and cloths are considered. In short, any sheet-like material may be used. However, a material having a higher surface density (weight per m 2 ) is less likely to be deformed due to warping, etc., and the floor material is well-set. As the substrate 3, for example, plywood is used. A kerf 4 is formed on the back surface of the substrate 3, and the kerf 4 is cut upward from the back surface side of the substrate 3 to reach the sheet-shaped material 2 or the sheet-shaped material 2. It is something that cuts into a state that does not reach. Here, the kerfs 4 having different cutting depths may be used together. Further, one or a plurality of cut grooves 4 may be provided in parallel with the longitudinal direction of the floor material 6 as shown in FIG. 7 (a), or the width direction of the floor material 6 as shown in FIG. 7 (b). 1 to more than one may be provided in
Alternatively, as shown in FIG. 7 (c), one or more pieces may be provided in the longitudinal direction and the width direction of the floor material 6, respectively, or as shown in FIG. 7 (d), with respect to the longitudinal direction of the floor material 6. One or more may be provided in a diagonal direction, or FIG. 7 (e)
Alternatively, the floor material 6 may be provided in an oblique lattice shape that is oblique to the longitudinal direction of the floor material 6. Further, the cut groove 4 may have any groove width and groove depth.
ところでこのように切溝４を設けることで、床材６を伝
わる音の振動エネルギーを切溝４部分で減衰させること
ができるのである。弾性体５はゴム発泡体製や合成樹脂
（ウレタン、ポリエチレン、ポリスチレン等）発泡体製
等の弾性を有するものである。弾性体５の表面には凹凸
を形成してある。このように弾性体５の表面を凹凸にす
ることで、弾性体５の見かけのヤング率を小さくするこ
とができて、制振性を上げることができるものである。
ここで凸部の面積比率が小さすぎると荷重に対するへこ
みが大きくなりすぎて床材として適当でなく、また、凸
部の面積比率が大きすぎると、見かけのヤング率をあま
り小さくできず、凹凸を設けたことによる制振性を上げ
る効果があまり期待できない。これらのことを考慮する
と凸部の面積比率は25％〜75％が好ましい。なお、第１
図乃至第６図においては弾性体５の表面に凹凸を設けた
図面となっていないが、これは作図上凹凸を省略した概
略図であり、本発明において弾性体５の表面には実際に
は凹凸が形成してある。By providing the cut grooves 4 in this manner, the vibration energy of the sound transmitted through the floor material 6 can be attenuated at the cut groove 4 portions. The elastic body 5 is made of rubber foam or synthetic resin (urethane, polyethylene, polystyrene, etc.) foam and has elasticity. Irregularities are formed on the surface of the elastic body 5. By making the surface of the elastic body 5 uneven as described above, the apparent Young's modulus of the elastic body 5 can be reduced, and the vibration damping property can be improved.
If the area ratio of the protrusions is too small, the dents against the load will be too large and not suitable as a flooring material.If the area ratio of the protrusions is too large, the apparent Young's modulus cannot be reduced so much that unevenness occurs. It cannot be expected that the effect of improving the damping effect will be so great. Considering these points, the area ratio of the convex portions is preferably 25% to 75%. The first
Although FIG. 6 to FIG. 6 do not show the surface of the elastic body 5 provided with unevenness, this is a schematic view in which the unevenness is omitted in the drawing, and in the present invention, the surface of the elastic body 5 is actually not shown. Unevenness is formed.
第８図(a)には凸部10の面積比率が25％の例が示してあ
り、第８図(b)には凸部10の面積比率が50％の例が示し
てある。この第８図において凸部10間の距離と凸部10の
巾とが同じ長さｌとなっている。FIG. 8 (a) shows an example in which the area ratio of the convex portions 10 is 25%, and FIG. 8 (b) shows an example in which the area ratio of the convex portions 10 is 50%. In FIG. 8, the distance between the convex portions 10 and the width of the convex portions 10 are the same length l.
床材６には長手方向の一側に嵌合突部８が突設してあ
り、他側に嵌合凹部が凹設してある。The floor member 6 is provided with a fitting projection 8 on one side in the longitudinal direction and a fitting recess on the other side.
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
うな床基材の上に直接載設したり、あるいは、弾性下地
材を床基材の上に敷いてその上に載設したりすることが
できる。勿論床基材の上に根太等を組み、その上に載設
するようにしてもよいものである。Then, the flooring material 6 having the above-described structure is directly placed on a floor base material such as a building slab, or an elastic base material is laid on the floor base material and placed on it. You can Of course, joists or the like may be assembled on the floor base material and placed on the floor base material.
次に、本発明の実施例の実験データにつき説明する。Next, experimental data of the example of the present invention will be described.
この実験データとしては現状の集合住宅（マンション）
の床コンクリートスラブ厚は、150mmが一般的である
為、測定に際しては150mm厚スラブの上に各々試作品を
施工し、JIS A1418に定められた軽量床衝撃音発生器
（タッピングマシン）により衝撃を加え、JIS A1419の
遮音等級での評価を実施した。This experimental data is the current housing complex (condominium)
Since the floor concrete slab thickness of 150 mm is generally 150 mm, at the time of measurement, each prototype was constructed on a 150 mm thick slab and shock was generated by a lightweight floor impact sound generator (tapping machine) specified in JIS A1418. In addition, the sound insulation rating of JIS A1419 was evaluated.
・測定例１）…弾性シート（天然ゴムシート）のみ 表側の2.5mm厚の合板と裏側の9mm厚の合板との間に1mm
の天然ゴムシートを挟み込み、総厚12.5mmのサンドイッ
チパネルとして床衝撃音レベルを測定すると、周波数12
5Hzでは80dB、周波数250Hzでは77dBとなり、Ｌ等級表示
ではＬ−70（Ｌ数ではＬ−71であるが、JIS A1419の2dB
の許容を考えるとＬ−70等級と呼べる）となる。・ Measurement example 1) ... Only elastic sheet (natural rubber sheet) 1 mm between the front side 2.5 mm thick plywood and the back side 9 mm thick plywood
The floor impact sound level was measured as a sandwich panel with a total thickness of 12.5 mm by sandwiching a natural rubber sheet of
It becomes 80 dB at 5 Hz and 77 dB at a frequency of 250 Hz, and is L-70 in the L class display (L-71 in L number, but 2 dB of JIS A1419.
It can be called L-70 grade).
・測定例２）…弾性シート＋切溝 上記測定例１のサンドイッチパネルの9mm厚の合板に裏
側に切溝を施して（溝ピッチ60mm、溝巾1.8mm、溝深さ
8.5mm）床衝撃音レベルを測定すると、周波数125Hzでは
71dB、周波数250Hzでは68dBとなり、Ｌ等級表示ではＬ
−60（Ｌ数ではＬ−62であるが、JIS A1419の2dBの許容
を考えるとＬ−60等級と呼べる）となる。したがって、
測定例１と比較すると、Ｌ値で９改善され、遮音等級と
しては２ランク改善されたことになる。・ Measurement example 2): Elastic sheet + kerf The kerf is formed on the back side of the sandwich panel of the above-mentioned measurement example 1 with a thickness of 9 mm (groove pitch 60 mm, groove width 1.8 mm, groove depth).
8.5mm) When measuring the floor impact sound level, at a frequency of 125Hz
71 dB, 68 dB at a frequency of 250 Hz, L in the L class display
-60 (It is L-62 in the number of L, but can be called L-60 grade considering the allowance of 2 dB of JIS A1419). Therefore,
As compared with Measurement Example 1, the L value was improved by 9, and the sound insulation grade was improved by 2 ranks.
・測定例３）…弾性シート＋切溝＋表面に凹凸を形成し
た弾性体 上記測定例２のサンドイッチパネルの9mm厚の合板の裏
側に厚さ8mmの表面に凹凸を形成した天然ゴム弾性体
（面積比50％）を貼着して床衝撃音レベルを測定する
と、周波数125Hzでは64dB、周波数250Hzでは61dBとな
り、Ｌ等級表示ではＬ−55（Ｌ数でも55）であった。こ
れにより、測定例３のものが測定例１）や測定例２）の
ものよりもＬ数が改善され、遮音等級も改善されている
ことが判明する。・ Measurement example 3) ... Elastic sheet + kerf + elastic body with irregularities formed on the surface Natural rubber elastic body with irregularities formed on the surface with a thickness of 8 mm on the back side of the 9 mm thick plywood of the sandwich panel of the above measurement example ( When the floor impact sound level was measured by sticking the area ratio (50%), it was 64 dB at a frequency of 125 Hz and 61 dB at a frequency of 250 Hz, and was L-55 (L number was 55) in the L class display. As a result, it was found that the measurement example 3 had an improved L number and the sound insulation grade was also improved as compared with the measurement examples 1) and 2).
・測定例４）…弾性シート＋切溝＋表面に凹凸を形成し
た弾性体＋表面側溝（Ｕ溝） 上記測定例３のサンドイッチパネルの2.5mm厚の合板の
表側の上記切溝に対応する位置にＵ溝（溝底巾1.0±0.2
mm、溝開口巾1.8±0.2mm、溝深さ0.45±0.05mm）加工を
施して床衝撃音レベルを測定すると、周波数125Hzでは6
1dB、周波数250Hzでは59dBとなり、Ｌ等級表示ではＬ−
55（Ｌ数ではＬ−53）であった。これにより、測定例３
と比較すると、Ｌ等級ではいずれもＬ−55であるが、測
定例４の方がＬ数が改善されており、表面側溝による効
果のあることがわかる。-Measurement example 4) ... Elastic sheet + kerf + elastic body with unevenness formed on the surface + surface groove (U groove) Position corresponding to the kerf on the front side of the 2.5 mm-thick plywood of the sandwich panel of the above measurement example 3 U groove (groove bottom width 1.0 ± 0.2
mm, groove opening width 1.8 ± 0.2 mm, groove depth 0.45 ± 0.05 mm) and the floor impact sound level is measured and it is 6 at a frequency of 125 Hz.
1dB, 59dB at a frequency of 250Hz, L-in the L class display
It was 55 (L-53 in terms of L number). As a result, measurement example 3
Comparing with, although it is L-55 in all of the L grades, the L number is improved in the measurement example 4, and it can be seen that there is an effect due to the surface side groove.
［発明の効果］ 本発明にあっては、叙述のように木質化粧板の裏面にシ
ート状物を積層一体化すると共にシート状物の裏面に基
板を積層一体化し、基板に切溝を設け、この基板の裏面
に表面に凹凸を有した弾性体を積層一体化したので、シ
ート状物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て第
１段階の防音ができ、基板に切溝をもうけることで床材
そのものの振動減衰が顕著にあらわれて第２段階の防音
ができ、更に下層の弾性体により第３段階の防振ができ
るのはもちろん、この第３段階の防振に当たり弾性体の
表面に凹凸が形成してあるので、見かけのヤング率を低
下させることができてより効果的に防振性を向上させる
ことができるのであって、以上の３つの防音、防振手段
の相乗効果により床材自体としてより確実な防音、防振
効果を発揮できるものである。また基板に切溝を入れた
ので、防振効果のみでなく、床材そのものの反りをおさ
えることができ、床面（例えばコンクリート面）へのな
じみ性もよくなるものである。また基板に切溝を入れる
と、その切溝が床材表面へ筋としてあらわれ、斜光線に
より浮き上がって見えるが、本発明にあってはそれをシ
ート状物を入れることにより発生をおさえることができ
る。[Effects of the Invention] In the present invention, as described above, the sheet-like material is laminated and integrated on the back surface of the wooden decorative board, and the substrate is laminated and integrated on the back surface of the sheet-like material, and a kerf is provided on the substrate. Since the elastic body with irregularities on the back surface of this board is laminated and integrated, the resonance of the wooden decorative board can be suppressed by laminating the sheet-like objects, and the sound generated when a shock is applied to the floor surface can be reduced. The first stage soundproofing can be done, and by making a cut groove in the substrate, the vibration damping of the floor material itself can be noticeable and the second stage soundproofing can be done, and further the lower layer elastic body can do the third stage vibrationproofing. Of course, since the unevenness is formed on the surface of the elastic body in the third stage of vibration isolation, the apparent Young's modulus can be reduced and the vibration isolation can be improved more effectively. There are three types of soundproofing and vibration-proofing Due to the synergistic effect, the flooring material itself can exhibit more reliable soundproofing and vibration damping effects. Further, since the substrate is provided with the cut grooves, not only the vibration-proof effect but also the warp of the floor material itself can be suppressed and the conformability to the floor surface (for example, concrete surface) is improved. Further, when a kerf is formed on the substrate, the kerf appears as a streak on the surface of the floor material and appears to be lifted up by oblique rays, but in the present invention, the occurrence can be suppressed by inserting it into a sheet. .
第１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、第３図は本発明の床材の他の実施例の断面
図、第４図は同上の更に他の実施例の断面図、第５図は
同上の更に他の実施例の断面図、第６図は同上の更に他
の実施例の断面図、第７図(a)(b)(c)(d)(e)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)(b)は
それぞれ弾性体の表面に凹凸を設けた各実施例の斜視図
であって、１は木質化粧板、２はシート状物、３は基
板、４は切溝、５は弾性体である。1 is a sectional view of an embodiment of the flooring material of the present invention, FIG. 2 is a perspective view of the same as above, FIG. 3 is a sectional view of another embodiment of the flooring material of the present invention, and FIG. FIG. 5 is a cross-sectional view of still another embodiment, FIG. 5 is a cross-sectional view of still another embodiment of the above, and FIG. 6 is a cross-sectional view of yet another embodiment of the same as that of FIG. 7 (a) (b) (c). ) (d) (e) is a bottom view of each embodiment in which the floor material is provided with a kerf, and FIGS. 8 (a) (b) is a perspective view of each embodiment in which the surface of the elastic body is provided with irregularities. Here, 1 is a wooden decorative board, 2 is a sheet-like material, 3 is a substrate, 4 is a kerf, and 5 is an elastic body.
Claims (2)
化すると共にシート状物の裏面に基板を積層一体化し、
基板に切溝を設け、この基板の裏面に表面に凹凸を有し
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 sheet-like material is laminated and integrated on the back surface of a wooden decorative board, and a substrate is laminated and integrated on the back surface of the sheet-like material,
A flooring material, characterized in that a cut groove is provided on a substrate, and an elastic body having irregularities on the surface is laminated and integrated on the back surface of the substrate.
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, wherein a surface side groove is provided on the surface of the wooden decorative board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254287A JPH0772440B2 (en) | 1986-10-25 | 1986-10-25 | Floor material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254287A JPH0772440B2 (en) | 1986-10-25 | 1986-10-25 | Floor material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63107649A JPS63107649A (en) | 1988-05-12 |
| JPH0772440B2 true JPH0772440B2 (en) | 1995-08-02 |
Family
ID=17262870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61254287A Expired - Lifetime JPH0772440B2 (en) | 1986-10-25 | 1986-10-25 | Floor material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0772440B2 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0543156Y2 (en) * | 1987-02-04 | 1993-10-29 | ||
| JPH0545706Y2 (en) * | 1987-02-05 | 1993-11-25 | ||
| JPS63162046U (en) * | 1987-04-08 | 1988-10-24 | ||
| JPS63179350U (en) * | 1987-05-12 | 1988-11-21 | ||
| JPH0543157Y2 (en) * | 1987-05-27 | 1993-10-29 | ||
| JPH01137064A (en) * | 1987-11-20 | 1989-05-30 | Bridgestone Corp | Floor finishing material |
| JPH0230848A (en) * | 1988-04-09 | 1990-02-01 | Nippon Steel Chem Co Ltd | Impact absorbing flooring |
| JP2642666B2 (en) * | 1988-05-26 | 1997-08-20 | 松下電工株式会社 | Soundproof flooring |
| JPH0211943U (en) * | 1988-07-06 | 1990-01-25 | ||
| JPH0211942U (en) * | 1988-07-06 | 1990-01-25 | ||
| JPH0351472A (en) * | 1989-07-15 | 1991-03-05 | Matsushita Electric Works Ltd | Wooden type floor material |
| JPH076331Y2 (en) * | 1989-09-19 | 1995-02-15 | 倉敷紡績株式会社 | Floor material |
| JP2542569Y2 (en) * | 1989-10-14 | 1997-07-30 | 松下電工株式会社 | Wood flooring |
| JPH0451534U (en) * | 1990-09-05 | 1992-04-30 | ||
| JP2536685Y2 (en) * | 1991-12-20 | 1997-05-21 | 株式会社河合楽器製作所 | Soundproof flooring |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623509A (en) * | 1979-08-06 | 1981-03-05 | Nippon Radiator Co Ltd | Exhaust system |
| JPS5998949A (en) * | 1982-11-30 | 1984-06-07 | 松下電工株式会社 | Sound-proof and vibration dampening panel |
| JPS6086646U (en) * | 1983-11-21 | 1985-06-14 | 昭和機工株式会社 | Anti-vibration pad |
| JPS60143828U (en) * | 1984-03-05 | 1985-09-24 | 株式会社コンステック | Vibration isolator |
| JPH0448258Y2 (en) * | 1986-06-13 | 1992-11-13 | ||
| JPS6355258A (en) * | 1986-08-26 | 1988-03-09 | 松下電工株式会社 | Floor material |
-
1986
- 1986-10-25 JP JP61254287A patent/JPH0772440B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63107649A (en) | 1988-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |