JPH03197758A - Soundproof double floor - Google Patents

Soundproof double floor

Info

Publication number
JPH03197758A
JPH03197758A JP33266189A JP33266189A JPH03197758A JP H03197758 A JPH03197758 A JP H03197758A JP 33266189 A JP33266189 A JP 33266189A JP 33266189 A JP33266189 A JP 33266189A JP H03197758 A JPH03197758 A JP H03197758A
Authority
JP
Japan
Prior art keywords
rubber
seat
floor panel
floor
reaction force
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.)
Pending
Application number
JP33266189A
Other languages
Japanese (ja)
Inventor
Akira Tani
谷 明
Toshiaki Onaka
大仲 敏章
Kazunori Ono
一則 小野
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.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co 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 Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP33266189A priority Critical patent/JPH03197758A/en
Publication of JPH03197758A publication Critical patent/JPH03197758A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To raise the soundproofing effect of floor by a method in which a movable floor panel is supported through a rubbery elastic seat on a floor slab in such a way that impact energy from the movable floor panel is absorbed by the buckling displacement of the rubbery elastic seat to lessen reaction. CONSTITUTION:A rubbery elastic seat 10b is of a so-called buckling form in which an octagonal space 15 is formed in a hard rubber 12. A movable floor panel is supported through leg columns consisting of the seat 10b and legs on a floor slab. Impact energy from the movable floor panel can thus be absorbed by a fixed buckling displacement in the rubbery elastic seat 10b and the reaction of the seat 10b is also reduced, whereby making impact sound smaller.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、アパート、マンション等の集合住宅や体育
館等の床の二重床防音方法に係わり、更に詳しくは置床
パネル上からの重量衝撃音を防音させる二重床防音方法
に関するものである。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a double-floor soundproofing method for floors of collective housing such as apartments and condominiums, gymnasiums, etc., and more specifically, it relates to a double-floor soundproofing method for floors of collective housing such as apartments and condominiums, and gymnasiums. The present invention relates to a double floor soundproofing method for soundproofing.

〔従来の技術] 従来、アパートマンション等の集合住宅の水廻り部や体
育館等の床の構造としては、例えは第5図及び第6図に
示すように、コンクリート等から成る床スラブ1上に、
ゴム座2と支持ボルト3とから成る複数本の脚柱4を介
して置床パネル5を設置し、そして置床パネル5上には
、捨張ベニア等のボード6を敷設した後、フローリング
やカーペットや畳等の仕上げ材7を載置した二重床にな
っている。
[Prior Art] Conventionally, the structure of the floor of a plumbing area of a housing complex such as an apartment building or a gymnasium, etc., has been constructed on a floor slab 1 made of concrete or the like, as shown in Figs. 5 and 6, for example. ,
A floor panel 5 is installed via a plurality of pillars 4 consisting of rubber seats 2 and support bolts 3, and after laying a board 6 such as veneer on top of the floor panel 5, flooring, carpet, etc. It has a double floor on which finishing materials 7 such as tatami mats are placed.

上記、脚柱4を構成する床スラブ1上のゴム座2は、弾
性力及び防音性を付与するために一般に使用されており
、またその他では、例えば特開昭62−133827号
公報に開示されているようにグラスウールパッド等の緩
衝部材と、防振ゴム等の弾性部材とを組合せて使用した
ものも知られている。
The rubber seat 2 on the floor slab 1 constituting the pedestal 4 is generally used to impart elasticity and soundproofing properties, and is also disclosed in, for example, Japanese Patent Laid-Open No. 133827/1983. There are also known devices that use a combination of a cushioning member such as a glass wool pad and an elastic member such as anti-vibration rubber.

また、防音性を高めるために、置床パネル5側に制振材
や吸音材を貼付けたものも提案されている(特開昭61
−146955号公報)。
Furthermore, in order to improve soundproofing properties, it has been proposed that vibration damping material or sound absorbing material is pasted on the side of the floor panel 5 (Japanese Patent Application Laid-open No. 61
-146955).

更に、防音性を向上させるために、動吸振器を置床パネ
ル5側または床スラブ1側に設置して振動を減衰させ、
防音対策としたものも提案されている(実開昭57−1
76141号公報)。
Furthermore, in order to improve soundproofing, a dynamic vibration absorber is installed on the floor panel 5 side or the floor slab 1 side to damp vibration.
Soundproofing measures have also been proposed (Utility Model No. 57-1
76141).

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

然しなから、上記のような従来の二重床横進の防音、防
振対策は、置床パネル5側若しく番J仕上げ材7側に物
を落としたり、底の固い靴部で歩行する際には、低周波
域の振動や騒音は、床スラブl上で直接物を落としたり
、歩行する場合に比べて小さくはなるが、やはり中高周
滲域の振動や騒音が階下の部屋または隣接するぷ屋に伝
わると言う問題があり、重量衝撃音は琲スラブ1上での
音に対して高くこそなれ、低くなることはまれであった
However, the conventional soundproofing and vibration-proofing measures for double-bed lateral movement as described above are difficult to prevent when objects are dropped on the floor panel 5 side or No. J finishing material 7 side, or when walking with hard-soled shoes. Although the vibrations and noise in the low frequency range are smaller than those caused when objects are dropped directly on the floor slab or when walking, the vibrations and noise in the mid-to-high frequency range are still felt when the floor is in the downstairs room or adjacent room. There was a problem in that the sound was transmitted to the floor, and the weight impact sound was higher than the sound on the slab 1, and rarely lower.

従って、従来より建築学会で定められていイ集合住宅や
ホテル、体育館等の床衝撃音の遮看等級に関しては、例
えば2級(許容できる等魅・3級(最低限等級)になら
ざるを得なかった。
Therefore, the insulation class for floor impact sound for apartment complexes, hotels, gymnasiums, etc., which has been set by the Architectural Institute of Japan, has to be, for example, 2nd grade (acceptable) or 3rd grade (minimum grade). There wasn't.

また、従来からの二重床の防音対策として、置床パネル
5と床スラブ1との間の空間に於しる空気層が、床衝撃
が加わった時点で置床パ滑ル5の振動による太鼓現象で
音圧が増幅し、これが床スラブ1を伝播、透過する現象
と考えられ、このような現象を低減させることで防音対
策が行われていた。
In addition, as a conventional soundproofing measure for double floors, the air layer in the space between the floor panel 5 and the floor slab 1 causes a drumming phenomenon due to the vibration of the floor panel 5 when a floor impact is applied. It is thought that this is a phenomenon in which the sound pressure is amplified and propagated and transmitted through the floor slab 1, and soundproofing measures have been taken to reduce this phenomenon.

然し、上述したように上記のような現象を低減させるだ
けでは、重量衝撃音を有効に防音させることはできなか
った。
However, as described above, it has not been possible to effectively dampen weight impact sound by simply reducing the above phenomena.

〔発明の目的〕[Purpose of the invention]

この発明は、かかる従来の課題に着目して案出されたも
ので、重量衝撃音は、衝撃によって与えられたエネルギ
ーが仕上げ材、捨張り(ボード)、#柱で順次吸収され
、その結果の反力が床スラブへ伝わり、この反力が床ス
ラブを振動させて発生すると言う知見を得て、置床パネ
ル側からの衝撃エネルギーを、ゴム状弾性座の一定の座
屈変位により吸収させると共に、ゴム状弾性座の反力を
小さくすることにより有効に防音するようにした二重床
防音方法を提供することを目的とするものである。
This invention was devised by focusing on this conventional problem, and the weight impact sound is caused by the energy given by the impact being sequentially absorbed by the finishing material, the board, and the pillars. We obtained the knowledge that the reaction force is transmitted to the floor slab, and that this reaction force is generated by vibrating the floor slab.The impact energy from the floor panel side is absorbed by the constant buckling displacement of the rubber-like elastic seat. It is an object of the present invention to provide a double floor soundproofing method that effectively achieves soundproofing by reducing the reaction force of a rubber-like elastic seat.

〔課題を解決するための手段〕[Means to solve the problem]

この発明は上記目的を達成するため、床スラブ上に、ゴ
ム状弾性座と脚とから成る複数本の脚柱を介して置床パ
ネルを支持し、前記置床パネル側からの衝撃エネルギー
を、ゴム状弾性座の一定の座屈変位により吸収させると
共に、ゴム状弾性座の反力を小さくすることにより防音
特性を高めることを要旨とするものである。
In order to achieve the above object, the present invention supports a floor panel on a floor slab via a plurality of pillars each consisting of a rubber-like elastic seat and legs, and absorbs the impact energy from the floor panel side using rubber-like elastic seats. The gist of the invention is to absorb the noise by a certain buckling displacement of the elastic seat and to improve the soundproofing properties by reducing the reaction force of the rubber-like elastic seat.

即ち、本願発明者等は長年脱気研究を重ねた結果、重量
衝撃音対策として、置床パネルに伝わる衝撃エネルギー
は、置床パネルから脚柱の各々の部位で蓄えられ、そし
て順次次の部位、即ち床スラブ側に伝わるとの知見を得
た。
That is, as a result of many years of degassing research, the inventors of the present application have found that, as a countermeasure against weight impact noise, the impact energy transmitted to the floor panel is stored in each part of the floor panel to the pedestal, and then transferred to the next part, i.e. It was discovered that this was transmitted to the floor slab side.

即ち、重量衝撃音は、蓄えられた衝撃エネルギーの反力
が床スラブへ伝わり、この反力が床スラブを振動させて
発生するものと考えられる。
That is, it is thought that the weight impact sound is generated when the reaction force of the stored impact energy is transmitted to the floor slab, and this reaction force vibrates the floor slab.

90cm X 180cmのパネルを用いて重量衝撃音
と床スラブへ伝達された衝撃反力との相関関係を見ると
、第7図の重量衝撃音と衝撃反力との関係を示すグラフ
説明図に示すように非常に高い相関性が見られた。即ち
、重量衝撃音を下げるには、床スラブへ伝わる衝撃反力
を下げると、遮音等級の特級(建築学会で定められた特
別仕様)にも入る特性を得ることが出来る。
When looking at the correlation between the weight impact sound and the impact reaction force transmitted to the floor slab using a 90cm x 180cm panel, it is shown in the graph explanatory diagram showing the relationship between the weight impact sound and the impact reaction force in Figure 7. A very high correlation was observed. That is, in order to reduce weight impact noise, by lowering the impact reaction force transmitted to the floor slab, it is possible to obtain characteristics that fall within the special class of sound insulation class (special specifications specified by the Architectural Institute of Japan).

因みに、本グラフにおいては、衝撃反力200 kgf
で、LH45を与える。
Incidentally, in this graph, the impact reaction force is 200 kgf
So, give LH45.

所定の衝撃エネルギーを吸収して反力を下げる方法とし
ては、種々の方法があるが、一般的な方法としては、弾
性体のバネ定数を低(抑える方法がある。この方法を用
いると、所定のエネルギーを吸収するまでは、バネの変
位が大きくなる。変位が大きくなれば、置床構造の場合
、置床パネルや脚柱から成る置床ユニットの沈みが生じ
て実用化には適さないことになる。
There are various methods to reduce the reaction force by absorbing a predetermined impact energy, but a common method is to reduce the spring constant of an elastic body. The displacement of the spring becomes large until it absorbs the energy of

そこで、高エネルギーの吸収、低反力のバネが必要とな
る。これは低変位時のバネ定数を高くし、中変位時のバ
ネ定数は非常に低いか、またはゼロ或いはマイナスとな
り、高変位時では再び高くする反力曲線で得られること
になる。
Therefore, a spring with high energy absorption and low reaction force is required. This results in a reaction force curve in which the spring constant is high at low displacements, the spring constant is very low, zero or negative at medium displacements, and increases again at high displacements.

即ち、第8・図において、線図C,Dのような曲線を与
えるバネを脚柱に設置することになる。
That is, in Figure 8, springs that provide curves as shown in diagrams C and D are installed on the pillars.

しかし、このハネは、金属バネを用いた場合、衝撃時に
金属と床スラブとの固体接触音が発生するので好ましく
なく、そのため可撓性物質よりなり、接触音の発生がし
ないものが良い。
However, when a metal spring is used, this spring is undesirable because it generates solid contact sound between the metal and the floor slab upon impact. Therefore, it is preferable that the spring is made of a flexible material and does not generate contact sound.

また、可撓性物質の場合には、形状や大きさ硬さ等によ
り、設計の自由度があり、任意のバネ定数に設定できる
Further, in the case of a flexible material, there is a degree of freedom in design depending on the shape, size, hardness, etc., and an arbitrary spring constant can be set.

次に、第8図に示す衝撃反力と、ゴム状弾性座の変位と
、吸収エネルギーとの関係をグラフについて説明する。
Next, the relationship between the impact reaction force, the displacement of the rubber-like elastic seat, and the absorbed energy will be explained using the graph shown in FIG.

第8図において、A、Bの曲線は、−船釣な可撓性物質
で作られた円柱状等の一般形状のゴム脚柱の曲線を示し
ており、Cの曲線は、低変位時にハネ定数を8曲線より
も高くし、中変位時にバネ定数を8曲線よりも低くし、
高変位時には、再びバネ定数を高くした時の曲線である
In Fig. 8, curves A and B show the curves of a rubber pedestal made of a flexible material used for fishing boats and have a general shape such as a cylinder, and curve C shows the curves of a rubber column made of a flexible material used for boat fishing. The constant is higher than the 8 curve, and the spring constant is lower than the 8 curve at medium displacement.
This is the curve when the spring constant is increased again at high displacement.

A曲線は、常にC曲線よりバネ定数を高くした曲線であ
り、夫々の曲線の吸収エネルギー曲線をA“、B’ 、
C’ に示す。
The A curve is always a curve with a higher spring constant than the C curve, and the absorbed energy curves of each curve are A", B',
Shown in C'.

ここで、所定の吸収エネルギーをXとすると、エネルギ
ー曲線により、変位)At 、Ct 、B+の時の反力
は、反力曲線よりAI、B、、C。
Here, assuming that the predetermined absorbed energy is X, the reaction forces at displacements) At, Ct, and B+ are AI, B, and C according to the energy curve.

が与えられる。即ち、Cの曲線は、第8図のグラフ線図
上では、変位がAI、B+の略中間域であり、反力はそ
れに比較してB、と同等以下となり、反力はA2の約1
72以下を示している。
is given. That is, in the graph diagram of FIG. 8, the displacement of curve C is approximately in the middle range between AI and B+, and the reaction force is equal to or less than that of B, and the reaction force is about 1 of A2.
72 or less is shown.

またCの曲線は、形状、可撓性物質の横弾性係数(G)
を変える事により、広範囲な設計の自由度が与えられ、
例えば、Dのような曲線を設けることも可能である。0
曲線によれば、変位1反力ともにC曲線より下ることは
容易に推測出来るものである。
In addition, the curve C shows the shape and the transverse elastic modulus (G) of the flexible material.
By changing the
For example, it is also possible to provide a curve like D. 0
According to the curve, it can be easily inferred that both displacement and reaction force fall below the C curve.

以上のようなことから、可撓性物質、即ちゴム状弾性体
の形状としては、重量衝撃音(衝撃エネルギー)に対し
て、一定の変位内でエネルギーを十分に吸収し、その時
のゴム状弾性体の反力を如何に小さいものにするかによ
って衝撃音を小さ(することが出来るのである。
From the above, the shape of a flexible material, that is, a rubber-like elastic body, is such that it can sufficiently absorb energy within a certain displacement against weight impact sound (impact energy), and the shape of the rubber-like elastic body at that time Impact noise can be reduced by reducing the reaction force of the body.

〔発明の作用〕[Action of the invention]

この発明は上記のように構成され、置床パネルからの衝
撃エネルギーを、ゴム状弾性座の一定の座屈変位により
吸収すると共に、ゴム状弾性座の反力を小さくすること
により防音特性を高め、建築学会で定める遮音等級の特
級(特別仕様)の範囲に入れることが出来る。
This invention is configured as described above, absorbs impact energy from the floor panel by a certain buckling displacement of the rubber-like elastic seat, and improves soundproofing properties by reducing the reaction force of the rubber-like elastic seat. It can be placed within the special grade (special specification) sound insulation class specified by the Architectural Institute of Japan.

〔発明の実施例〕[Embodiments of the invention]

以下、添付図面に基づき、この発明の詳細な説明する。 Hereinafter, the present invention will be described in detail based on the accompanying drawings.

なお、従来例と同一構成要素は、同一符号を付して説明
は省略する。
Note that the same components as those in the conventional example are given the same reference numerals, and the description thereof will be omitted.

第1図(a)、 (b)は、この発明の第1比較例を示
すゴム状弾性座10の半断面図とI−I矢視底面図を示
し、このゴム状弾性座10は、内部に中空部11を形成
した円錐台状に成形された硬質ゴム12と、その上面に
金属座13とで構成され、金属座13には支持ボルト3
が取付けられている。また、第2図(a)、 (b)は
、この発明の第2比較例を示すゴム状弾性座10aの半
断面図と■−■矢視底面図を示し、この比較例の場合に
は、上記第1比較例における硬質ゴム12を軟らかくす
るために、切欠部14を円周上に4箇所設け、しかもゴ
ムの横断弾性係数を小さ(したものである。
FIGS. 1(a) and 1(b) show a half-sectional view and a bottom view taken along the arrow II of a rubber-like elastic seat 10 showing a first comparative example of the present invention. It consists of a hard rubber 12 shaped like a truncated cone with a hollow part 11 formed therein, and a metal seat 13 on the top surface of the hard rubber 12. A support bolt 3 is attached to the metal seat 13.
is installed. Moreover, FIGS. 2(a) and 2(b) show a half-sectional view and a bottom view as viewed from the arrows ■-■ of a rubber-like elastic seat 10a showing a second comparative example of the present invention. In order to soften the hard rubber 12 in the first comparative example, four notches 14 are provided on the circumference, and the transverse elastic modulus of the rubber is made small.

また、第3図に示すこの発明の実施例のゴム状弾性座1
0bは、硬質ゴム12の内部に8角形上の空間部15を
形成し、全体形状としては、所謂座屈型の形状に構成し
たものである。
Further, a rubber-like elastic seat 1 according to an embodiment of the present invention shown in FIG.
0b has an octagonal space 15 formed inside the hard rubber 12, and the overall shape is a so-called buckled shape.

この実施例のゴム状弾性座10bは、第1図(a)、 
(b)に示すゴム状弾性座10と同程度の横断弾性係数
を有するが、外方向への膨らみで座屈するように構成し
であるので、第1比較例のゴム状弾性座10よりは軟ら
かく、かつ座屈型の反力曲線を描(ものである。
The rubber-like elastic seat 10b of this embodiment is shown in FIG.
Although it has the same transverse elastic modulus as the rubber-like elastic seat 10 shown in (b), it is configured to buckle when it bulges outward, so it is softer than the rubber-like elastic seat 10 of the first comparative example. , and draw a buckling-type reaction force curve.

上記、第1比較例のゴム状弾性座10は、第8図に於け
るA曲線を与える形状のものであり、また第2比較例の
ゴム状弾性座10aは、第8図に於ける8曲線を与える
形状のものであり、更に実施例のゴム状弾性座10bは
、第8図に於けるC曲線を与える形状のものである。
The rubber-like elastic seat 10 of the first comparative example has a shape that gives the A curve in FIG. 8, and the rubber-like elastic seat 10a of the second comparative example has the shape of Furthermore, the rubber-like elastic seat 10b of the embodiment has a shape that provides a curve C in FIG. 8.

なおその他の座屈型の反力曲線を与える硬質ゴム12の
形状の実施例としては、第4図(a)〜第4図(C)に
示すものが考えられ、第4図(a)の硬質ゴム12の形
状は、直状のものであり、また第4図(b)及び第4図
(C)の硬質ゴム12の形状は、直状または円のもので
あり、これらは何れも重量衝撃音(衝撃エネルギー)に
対して、一定の変位でエネルギーを十分に吸収し、その
時のゴム状弾性体の反力を小さくし、衝撃音を小さくす
ることが出来るものである。
As examples of the shape of the hard rubber 12 that provides other buckling-type reaction force curves, those shown in FIGS. 4(a) to 4(C) can be considered. The shape of the hard rubber 12 is straight, and the shape of the hard rubber 12 in FIGS. 4(b) and 4(C) is straight or circular, and both of these have a weight It is possible to sufficiently absorb impact sound (impact energy) with a constant displacement, reduce the reaction force of the rubber-like elastic body at that time, and reduce the impact sound.

以上のように、重量衝撃音と衝撃反力との間には、非常
に高い相関関係があることは、第7図で詳述したとおり
であり、この点からゴム状弾性座10の形状を、上述し
た所謂座屈タイプにすると衝撃反力は下がり、その反力
は建築学会で定める遮音等級の特級(特別仕様)に相当
する240 kgf程度となった。
As described above, there is a very high correlation between the weight impact sound and the impact reaction force, as detailed in FIG. When the above-mentioned so-called buckling type was used, the impact reaction force decreased, and the reaction force was about 240 kgf, which corresponds to the special grade (special specification) of the sound insulation class specified by the Architectural Institute of Japan.

この結果、重量衝撃音はLl(47と言う結果を得るこ
とが出来、遮音等級では±2dBまで許容されるために
、遮音等級LH45を得ることが出来た。
As a result, it was possible to obtain a result that the weight impact sound was Ll (47), and since the sound insulation grade allowed up to ±2 dB, the sound insulation grade was able to be obtained as LH45.

〔発明の効果〕〔Effect of the invention〕

この発明は、上記のように床スラブ上に、ゴム状弾性座
と脚とから成る複数本の脚柱を介して置床パネルを支持
し、前記置床パネルからの衝撃エネルギーを、ゴム状弾
性座の一定の座屈変位により吸収させると共に、ゴム状
弾性座の反力を小さくすることにより防音特性を高める
ことが出来るため、置床パネルからの重量衝撃音を、有
効に低減させて防音することが出来、この結果建築学会
で定める遮音等級の特級(特別仕様)にも入れることが
出来る効果がある。
As described above, the present invention supports a floor panel on a floor slab via a plurality of pillars each consisting of a rubber-like elastic seat and legs, and transfers impact energy from the floor panel to the rubber-like elastic seat. It is possible to improve the soundproofing properties by absorbing it by a certain buckling displacement and by reducing the reaction force of the rubber-like elastic seat, so it is possible to effectively reduce and soundproof the weight impact sound from the floor panel. As a result, it has the effect of being able to be included in the special class (special specification) of the sound insulation class specified by the Architectural Institute of Japan.

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

第1図(a)、 (b)は、この発明の第1比較例を示
すゴム状弾性座の半断面図と、I−1矢視底面図、第2
図(a)、 (b)は、この発明の第2比較例を示すゴ
ム状弾性座の半断面図と、■−■矢視底面図、第3図は
、この発明の実施例を示すゴム状弾性座斜視図、第4図
(a)〜第4図(C)は、ゴム状弾性座の他の実施例を
示す断面図、第5図は従来の二重床の構造を示す斜視図
、第6図は第5図の7部に於ける拡大断面図、第7図は
重量衝撃音と衝撃反力との関係を示すグラフ説明図、第
8図は衝撃反力と、ゴム状弾性座の変位と、吸収エネル
ギーとの関係を示すグラフ説明図である。 1・・・床スラブ、2・・・ゴム座、3・・・支持ボル
ト、4・・・脚柱、5・・・置床パネル、6・・・ボー
ド、7・・・仕上げ材、10・・・ゴム状弾性座、11
・・・中空部、12・・・硬質ゴム、13・・・金属座
、14・・・切欠部。
FIGS. 1(a) and 1(b) are a half-sectional view of a rubber-like elastic seat showing a first comparative example of the present invention, a bottom view as viewed from the I-1 arrow, and a second
Figures (a) and (b) are a half-sectional view of a rubber-like elastic seat showing a second comparative example of the present invention, and a bottom view as seen from the FIG. 4(a) to FIG. 4(C) are cross-sectional views showing other embodiments of the rubber-like elastic seat, and FIG. 5 is a perspective view showing the structure of a conventional double floor. , Fig. 6 is an enlarged cross-sectional view at section 7 of Fig. 5, Fig. 7 is a graph explanatory diagram showing the relationship between weight impact sound and impact reaction force, and Fig. 8 shows impact reaction force and rubber-like elasticity. FIG. 3 is a graph explanatory diagram showing the relationship between seat displacement and absorbed energy. DESCRIPTION OF SYMBOLS 1... Floor slab, 2... Rubber seat, 3... Support bolt, 4... Pillar, 5... Floor panel, 6... Board, 7... Finishing material, 10... ...Rubber-like elastic seat, 11
...Hollow part, 12...Hard rubber, 13...Metal seat, 14...Notch part.

Claims (1)

【特許請求の範囲】[Claims] 床スラブ上に、ゴム状弾性座と脚とから成る複数本の脚
柱を介して置床パネルを支持し、前記置床パネル側から
の衝撃エネルギーを、ゴム状弾性座の一定の座屈変位に
より吸収させると共に、ゴム状弾性座の反力を小さくす
ることにより防音特性を高めることを特徴とする二重床
防音方法。
A floor panel is supported on the floor slab via a plurality of pillars consisting of rubber-like elastic seats and legs, and impact energy from the floor panel side is absorbed by a certain buckling displacement of the rubber-like elastic seats. A double floor soundproofing method characterized by increasing soundproofing characteristics by reducing the reaction force of a rubber-like elastic seat.
JP33266189A 1989-12-25 1989-12-25 Soundproof double floor Pending JPH03197758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33266189A JPH03197758A (en) 1989-12-25 1989-12-25 Soundproof double floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33266189A JPH03197758A (en) 1989-12-25 1989-12-25 Soundproof double floor

Publications (1)

Publication Number Publication Date
JPH03197758A true JPH03197758A (en) 1991-08-29

Family

ID=18257457

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33266189A Pending JPH03197758A (en) 1989-12-25 1989-12-25 Soundproof double floor

Country Status (1)

Country Link
JP (1) JPH03197758A (en)

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US20120297713A1 (en) * 2009-10-05 2012-11-29 Andreas Geith Illuminated hallway floor assembly
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US8390251B2 (en) 2004-01-21 2013-03-05 Irobot Corporation Autonomous robot auto-docking and energy management systems and methods
US8387193B2 (en) 2005-02-18 2013-03-05 Irobot Corporation Autonomous surface cleaning robot for wet and dry cleaning
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US8412377B2 (en) 2000-01-24 2013-04-02 Irobot Corporation Obstacle following sensor scheme for a mobile robot
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Publication number Priority date Publication date Assignee Title
JPS6466359A (en) * 1987-09-07 1989-03-13 Bridgestone Corp Underfloor foundation structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6466359A (en) * 1987-09-07 1989-03-13 Bridgestone Corp Underfloor foundation structure

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