JPH0584336B2 - - Google Patents
Info
- Publication number
- JPH0584336B2 JPH0584336B2 JP11944885A JP11944885A JPH0584336B2 JP H0584336 B2 JPH0584336 B2 JP H0584336B2 JP 11944885 A JP11944885 A JP 11944885A JP 11944885 A JP11944885 A JP 11944885A JP H0584336 B2 JPH0584336 B2 JP H0584336B2
- Authority
- JP
- Japan
- Prior art keywords
- impact
- core material
- fluid
- hollow body
- hollow
- 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
- 239000011162 core material Substances 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000011359 shock absorbing material Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000000872 buffer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 239000005662 Paraffin oil Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000007798 antifreeze agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Landscapes
- Building Environments (AREA)
- Floor Finish (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明は衝撃緩衝材、特に、重量衝撃力によつ
て生ずるコンクリートスラブの低周波数振動を緩
衝する衝撃緩衝材に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a shock absorbing material, and particularly to a shock absorbing material that buffers low frequency vibrations of a concrete slab caused by weight impact force.
(ロ) 従来技術とその問題点
従来、住宅、特に集合住宅における階上からの
衝撃振動騒音が社会問題となつているが、この衝
撃振動騒音のうち、重量衝撃、例えば、子供等が
飛び跳ねることにより、床スラブ自身が振動して
生ずる低周波振動音（63〜250Hz）を防止するた
め、床スラブの厚さを増加する方法と、浮き床構
造にする方法とが提案されている。(b) Prior art and its problems In the past, impact vibration noise from the upper floors of houses, especially apartment complexes, has become a social problem.Among these impact vibration noises, heavy impact, such as children jumping, etc. In order to prevent low-frequency vibration noise (63 to 250 Hz) caused by the vibration of the floor slab itself, a method of increasing the thickness of the floor slab and a method of creating a floating floor structure have been proposed.
床スラブの厚さを増加する方法としては、例え
ば、床スラブの厚さを通常の２倍である300mmと
することにより、衝撃力3875Nの振動音を階下で
12dB程度まで低下させることができる。 One way to increase the thickness of the floor slab is, for example, by increasing the thickness of the floor slab to 300 mm, which is twice the normal thickness, to reduce vibration noise with an impact force of 3875 N from downstairs.
It can be reduced to about 12dB.
しかしながら、この方法によれば、遮音等級が
Ｌ−55（日本建築学会基準）程度にしかならず、
遮音性能が十分でないうえに、床重量が増加し、
高層建築において構造設計面で不利になり、多大
のコストアツプを招くという問題点がある。 However, according to this method, the sound insulation grade is only about L-55 (according to the Architectural Institute of Japan standards).
In addition to insufficient sound insulation performance, the weight of the floor increases.
This poses a problem in that it is disadvantageous in terms of structural design in high-rise buildings, leading to a significant increase in costs.
一方、浮き床構造にする方法としては、例え
ば、厚さ150mmの床スラブ上に、厚さ50mmのグラ
スウール（密度96Kg／m3、ばね定数８×106Ｎ／
m3）からなる緩衝層と、厚さ50mmのコンクリート
からなる浮き床層とを順次設けることにより、振
動音を低減させる方法がある。 On the other hand, as a method for creating a floating floor structure, for example, 50 mm thick glass wool (density 96 Kg/m 3 , spring constant 8 x 10 6 N/m) is placed on a 150 mm thick floor slab.
There is a method of reducing vibration noise by sequentially providing a buffer layer consisting of 50 mm thick concrete and a floating floor layer consisting of 50 mm thick concrete.
しかしながら、この方法によつても、遮音等級
はＬ−50程度にしかならず、耳ざわりとならない
程度の遮音等級（Ｌ−45）に低減するのは困難で
あるという問題点があつた。 However, even with this method, the sound insulation grade is only about L-50, and there is a problem in that it is difficult to reduce the sound insulation grade to L-45, which is a level that does not cause any harshness to the ears.
(ハ) 問題点を解決するための手段
本発明にかかる衝撃緩衝材は、前記問題点に鑑
み、変形可能な中空体と、この中空体の中空部内
に充填、封入され、連通した多数の空隙部を有す
る弾性芯材と、前記中空部内に注入され、前記芯
材の空隙部間を流通自在な流動体とからなる構成
としてある。(c) Means for Solving the Problems In view of the above-mentioned problems, the impact cushioning material according to the present invention includes a deformable hollow body and a large number of communicating voids filled and sealed in the hollow part of the hollow body. The fluid is injected into the hollow part and can freely flow between the gaps in the core material.
(ニ) 実施例
以下、本発明にかかる一実施例を添付図面の第
１図ないし第４図に従つて説明する。(d) Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4 of the accompanying drawings.
本実施例は、第１図に示すように、コンクリー
トの床スラブ１面上に、本願にかかる衝撃緩衝材
２と、板状体３とを積層一体化し、床下地構造を
構成した場合である。 In this example, as shown in FIG. 1, the impact cushioning material 2 according to the present invention and the plate-shaped body 3 are laminated and integrated on one surface of a concrete floor slab to form a subfloor structure. .
衝撃緩衝材２は、内部に中空部５を設けた変形
可能な中空体４と、前記中空部５内に充填、封入
され、連通した多数の空隙部を有する弾性芯材６
と、前記中空部５内に注入され、前記芯材６の空
隙部間に流通自在な流動体７とからなり、全体と
して板形状を有するものである。 The impact cushioning material 2 includes a deformable hollow body 4 having a hollow portion 5 therein, and an elastic core material 6 having a large number of communicating voids filled and sealed in the hollow portion 5.
and a fluid 7 which is injected into the hollow part 5 and can freely flow between the gaps of the core material 6, and has a plate shape as a whole.
中空体４としては、ウレタンやゴム材等の弾性
素材の他、これらのものに独立した多数の気泡を
設けた独立発泡体、あるいは、金属板等の変形可
能なもので後述する流動体を透過しないものであ
ればよい。 The hollow body 4 may be made of an elastic material such as urethane or rubber, a closed foam with a large number of independent cells, or a deformable material such as a metal plate that allows the fluid to pass through, as described below. It is fine as long as it does not.
芯材６としては、連通した多数の気泡を有する
ウレタンフオームやゴム発泡体の他、前記中空部
５内に封入したときに連通した多数の空隙部を形
成するグラスウール、ロツクウール、ウツドフア
イバー等が使用される。 As the core material 6, in addition to urethane foam or rubber foam having a large number of communicating cells, glass wool, rock wool, wood fiber, etc., which form a large number of communicating voids when sealed in the hollow part 5, can be used. used.
流動体７としては、硬化しないものであれば良
く、水その他の液状物を用いることができるが、
芯材６の空隙部間を流動する際に抵抗が大きいも
の、すなわち、粘性の大きい液体が好ましく、例
えば、パラフイン油、ポリエチレングリコール、
液状シリコン、ゴム液、機械油等が望ましい。
又、この流動体７に防腐剤や凍結防止剤等を混入
しておいてもよい。 The fluid 7 may be anything that does not harden, and water or other liquid substances may be used.
It is preferable to use liquids that have a high resistance when flowing between the voids of the core material 6, that is, liquids with high viscosity, such as paraffin oil, polyethylene glycol,
Liquid silicone, rubber liquid, machine oil, etc. are preferable.
Further, a preservative, an antifreeze agent, etc. may be mixed into the fluid 7.
そして、この流動体７の注入量は、流動体７が
前記芯材６の空隙部間を自在に流通できることが
必要であることから、空隙部の有する体積の1/2
程度が望ましい。 Since the fluid 7 needs to be able to freely flow between the voids of the core material 6, the injection amount of the fluid 7 is set to 1/2 of the volume of the voids.
degree is desirable.
したがつて、本実施例によれば、板状体３の上
面に対して垂直方向（第１図矢印方向）に衝撃力
Ｐが加わると、まず、中空体４および芯材６が変
形し、この際に衝撃エネルギーの一部が吸収され
る。さらに、この芯材６の変形に伴ない、中空部
５内に注入されている流動体７が芯材６の空隙部
間を流通するので、芯材６と流動体７との抵抗に
より、衝撃エネルギーの一部が吸収される。この
ため、床スラブ１に伝わる衝撃力が減少し、衝撃
振動の発生、伝達を有効に防止でき、床スラブ１
の低周波振動音を小さくすることができる。 Therefore, according to this embodiment, when an impact force P is applied in the direction perpendicular to the upper surface of the plate-shaped body 3 (in the direction of the arrow in FIG. 1), the hollow body 4 and the core material 6 are first deformed, At this time, part of the impact energy is absorbed. Furthermore, as the core material 6 deforms, the fluid 7 injected into the hollow part 5 flows between the gaps in the core material 6, so the resistance between the core material 6 and the fluid 7 causes an impact. Some of the energy is absorbed. Therefore, the impact force transmitted to the floor slab 1 is reduced, the generation and transmission of impact vibrations can be effectively prevented, and the floor slab 1
can reduce low-frequency vibration noise.
なお、実際の現場においては、前述の板状体３
の表面に捨て貼りを施した後、仕上げ床材（化粧
合板、カーペツト等）を貼設してもよく、また、
直接、仕上げ床材を貼設してもよいことは勿論で
ある。 In addition, in the actual site, the above-mentioned plate-shaped body 3
Finishing flooring materials (decorative plywood, carpet, etc.) may be applied after pasting on the surface of the
Of course, it is also possible to directly apply the finished flooring material.
次に、本実施例にかかる試験例について説明す
る。 Next, a test example according to this example will be explained.
すなわち、本実施例にかかる床下地構造は、厚
さ150mmのコンクリート製スラブ１（密度ρ＝
2300Kg／cm3、外形寸法5700×4675mm）面上に、衝
撃緩衝材２と、板状体３とを順次積層一体化した
構造としてある。 That is, the subfloor structure according to this embodiment is a concrete slab 1 with a thickness of 150 mm (density ρ=
2300Kg/cm 3 , external dimensions 5700×4675mm), the shock absorbing material 2 and the plate-shaped body 3 are sequentially laminated and integrated on the surface.
そして、本試験例にかかる床下地構造を
JISA1418に規定されている重量衝撃発生装置に
て加振し、階下より床衝撃音の程度を調べたとこ
ろ、耳ざわりとなるような衝撃音は感じられなか
つた。 Then, the subfloor structure for this test example was
When we tested the level of floor impact noise from downstairs by using a weight impact generator specified in JISA1418, we found that no impact noise was noticeable.
第２実施例は前述の第１実施例が別体からなる
板状体３を施工の際に載置一体化するものである
のに対し、あらかじめ板状体８，８を上下面に一
体化したものである（第２図）。 In the second embodiment, unlike the first embodiment, in which the plate-shaped body 3, which is a separate body, is placed and integrated during construction, the plate-shaped bodies 8, 8 are integrated on the upper and lower surfaces in advance. (Figure 2).
本実施例によれば、施工が容易になるうえに、
下面に設けた板状体８が床スラブの突起等から中
空体４を保護するという利点がある。 According to this embodiment, construction is easy, and
There is an advantage that the plate-shaped body 8 provided on the lower surface protects the hollow body 4 from protrusions of the floor slab.
第３、第４実施例では、前述の実施例が１つの
中空部５のみを有している中空体４の場合である
のに対し、複数の中空部５を有している中空体４
の場合である（第３図、第４図）。特に、第４実
施例にかかる中空部５は断面円形を有している。
他は前述の第１実施例と同様であるため、説明を
省略する。 In the third and fourth embodiments, the hollow body 4 has a plurality of hollow parts 5, whereas the previous embodiment deals with a hollow body 4 having only one hollow part 5.
This is the case (Figures 3 and 4). In particular, the hollow portion 5 according to the fourth embodiment has a circular cross section.
The rest is the same as the first embodiment described above, so the explanation will be omitted.
なお、中空部の形状、個数等は前述の実施例の
ものに限らず、使用条件に応じ、適宜選択すれば
よいことは勿論である。 It goes without saying that the shape, number, etc. of the hollow portions are not limited to those of the above-described embodiments, and may be appropriately selected depending on the conditions of use.
(ホ) 発明の効果
以上の説明から明らかなように、本発明にかか
る衝撃緩衝材に衝撃力が加わると、衝撃エネルギ
ーが中空体の変形、芯材の変形および流動体が芯
材の空隙部間を通過する際に生じる流動体と芯材
との抵抗によつて消費、吸収されるため、衝撃力
を緩衝して衝撃振動音の発生を防止し、優れた防
振作用を得ることができるという効果がある。(E) Effects of the Invention As is clear from the above explanation, when an impact force is applied to the impact cushioning material according to the present invention, the impact energy deforms the hollow body, deforms the core material, and causes the fluid to deform the voids in the core material. Because it is consumed and absorbed by the resistance between the fluid and the core material that occurs when it passes between them, it can buffer the impact force, prevent the generation of impact vibration noise, and provide excellent vibration-proofing effects. There is an effect.
第１図ないし第４図は本発明にかかる実施例を
示し、第１図は第１実施例の使用例を示す部分断
面斜視図、第２図、第３図および第４図は第２実
施例、第３実施例および第４実施例の断面図であ
る。
２……衝撃緩衝材、４……中空体、５……中空
部、６……芯材、７……流動体。
1 to 4 show an embodiment according to the present invention, FIG. 1 is a partial cross-sectional perspective view showing an example of use of the first embodiment, and FIGS. 2, 3, and 4 show a second embodiment. FIG. 4 is a cross-sectional view of an example, a third embodiment, and a fourth embodiment. 2... Impact cushioning material, 4... Hollow body, 5... Hollow part, 6... Core material, 7... Fluid.
Claims (1)
に充填、封入され、連通した多数の空隙部を有す
る弾性芯材と、前記中空部内に注入され、前記芯
材の空隙部間を流通自在な流動体とからなること
を特徴とする衝撃緩衝材。 ２ 前記中空体が、独立発泡体からなることを特
徴とする特許請求の範囲第１項記載の衝撃緩衝
材。 ３ 前記芯材が、連通した多数の気泡を有する多
孔質材からなることを特徴とする特許請求の範囲
第１項又は第２項記載の衝撃緩衝材。[Scope of Claims] 1. A deformable hollow body, an elastic core material filled and sealed in the hollow part of the hollow body, and having a large number of communicating voids; A shock-absorbing material characterized by comprising a fluid that can freely flow between voids. 2. The impact cushioning material according to claim 1, wherein the hollow body is made of a closed foam body. 3. The impact cushioning material according to claim 1 or 2, wherein the core material is made of a porous material having a large number of communicating cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11944885A JPS61277744A (en) | 1985-05-31 | 1985-05-31 | Shock cushioning material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11944885A JPS61277744A (en) | 1985-05-31 | 1985-05-31 | Shock cushioning material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61277744A JPS61277744A (en) | 1986-12-08 |
| JPH0584336B2 true JPH0584336B2 (en) | 1993-12-01 |
Family
ID=14761645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11944885A Granted JPS61277744A (en) | 1985-05-31 | 1985-05-31 | Shock cushioning material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61277744A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0625525Y2 (en) * | 1987-09-01 | 1994-07-06 | ミサワホーム株式会社 | Earthquake-proof structure of a house |
| JPH0625526Y2 (en) * | 1987-09-07 | 1994-07-06 | ミサワホーム株式会社 | Earthquake-proof structure of a house |
-
1985
- 1985-05-31 JP JP11944885A patent/JPS61277744A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61277744A (en) | 1986-12-08 |
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