JPH0633677B2 - Floor structure - Google Patents
Floor structureInfo
- Publication number
- JPH0633677B2 JPH0633677B2 JP61309514A JP30951486A JPH0633677B2 JP H0633677 B2 JPH0633677 B2 JP H0633677B2 JP 61309514 A JP61309514 A JP 61309514A JP 30951486 A JP30951486 A JP 30951486A JP H0633677 B2 JPH0633677 B2 JP H0633677B2
- Authority
- JP
- Japan
- Prior art keywords
- floor
- panel
- air
- floor panel
- panels
- 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
Landscapes
- Floor Finish (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、住宅、特に集合住宅において階上で子供等が
飛び跳ねた時等に生じる床衝撃音が階下に伝達するのを
低減するようにした遮音性能の優れた床構造に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is intended to reduce the transmission of a floor impact sound generated when a child or the like jumps upstairs in a house, particularly an apartment house, to the downstairs. The present invention relates to a floor structure having excellent sound insulation performance.
（従来の技術） 床衝撃音は、人間の歩行、飛びはね等に伴う衝撃力が、
床構造を振動させ、その振動によって下階に音が放出さ
れることによって生じるものである。この床衝撃音に
は、人が歩行するような軽量衝撃力による床衝撃音と、
子供が飛びはねる時の重量衝撃力（ＪＩＳ−Ａ１４１８
に規定する重量床衝撃音発生器における実効衝撃力３８
７５Ｎに相当する衝撃力）による床衝撃音とがある。上
記床衝撃音のうち、軽量衝撃力によるものは、カーペッ
ト等の床仕上げ材を用いることで衝撃力を吸収させて軽
減することが出来るが、重量衝撃力によるものは、衝撃
力が大きいために床下地に容易に伝達して床下地自体を
振動させてしまい、その軽減が困難であった。(Prior Art) Floor impact noise is caused by the impact force caused by human walking, flight, etc.
It is caused by vibrating the floor structure and emitting the sound to the lower floor due to the vibration. The floor impact sound is a floor impact sound due to a light impact force such as a person walking,
Weight impact force when a child jumps (JIS-A1418
Effective impact force in heavy floor impact sound generator specified in 38
There is a floor impact sound due to an impact force equivalent to 75N. Of the above floor impact sounds, those due to light weight impact force can be absorbed and reduced by using floor finishing materials such as carpet, but those due to heavy impact force have large impact force. It easily transmitted to the floor substrate and vibrated the floor substrate itself, which was difficult to reduce.
このような床衝撃音を軽減する床構造として浮床による
構造が知られている。この従来の浮床は、第２１図に示
すようにコンクリート床スラブａ上にグラスウール等の
緩衝材ｂを配設し、該緩衝材ｂ上に５０〜６０mm角の根
太材ｃを配し、その上に複数枚の合板等の床パネルｄを
上記緩衝材ｂとの間に空気層ｅを保持した状態で並設載
置し、さらにその上に床仕上げ材ｆを設けたものであ
り、上記緩衝材ｂの緩衝性等により衝撃力が直接コンク
リート床スラブａに伝達するのを防止するようにしたも
のである。A floating floor structure is known as a floor structure for reducing such floor impact noise. In this conventional floating floor, as shown in FIG. 21, a cushioning material b such as glass wool is arranged on a concrete floor slab a, and a joist material c of 50 to 60 mm square is arranged on the cushioning material b, A plurality of floor panels d, such as plywood, are placed side by side with the cushioning material b holding an air layer e, and a floor finishing material f is provided thereon. The shock absorbing force of the material b prevents the impact force from being directly transmitted to the concrete floor slab a.
そして、上記従来の浮床構造によると、衝撃力Ｐが根太
材ｃによって分散して緩衝材ｂに伝達され、この分散力
Ｐ１が該緩衝材ｂで吸収緩和されることにより、床スラ
ブａに加わる衝撃力が小さくかつ分散されて、階下に放
出される床衝撃音が小さくなり、緩衝材を設けない場合
に比べると床衝撃音が全体的に低下して、日本建築学会
基準の床衝撃音レベルによる遮音等級は、Ｌ−５５〜Ｌ
−５７となり、生活実感として、衝撃による音が少し気
になる程度で注意して生活すれば問題にならないレベル
まで床衝撃音を低減させることが出来るものである。Further, according to the above conventional floating floor structure, the impact force P is dispersed by the joist material c and transmitted to the cushioning material b, and the dispersing force P 1 is absorbed and relaxed by the cushioning material b, so that the floor slab a. The impact force applied is small and dispersed, the floor impact sound emitted downstairs is reduced, and the floor impact sound is generally lower than when no cushioning material is provided. Sound insulation grade according to level is L-55 to L
It becomes -57, and it is possible to reduce the floor impact sound to a level where it does not pose a problem if one lives by paying attention to the sound caused by the impact and living with care.
（発明が解決しようとする課題） しかしながら、近年、プライバシー等の尊重と住宅の高
層化に伴って、さらに優れた遮音性能が要求されてお
り、上記従来の浮床構造では、Ｌ−５５の性能までが限
界であり、遮音等級としてＬ５０やＬ−４５という，床
衝撃音がほとんど気にならない範囲まで低減することは
困難であった。(Problems to be Solved by the Invention) However, in recent years, with respect to privacy and the like and higher-rise houses, more excellent sound insulation performance is required, and in the conventional floating floor structure described above, even the performance of L-55 is required. Was the limit, and it was difficult to reduce the floor impact sound to a level where the floor impact sound was hardly noticed, such as L50 and L-45 as the sound insulation grade.
その理由について考察するに、上記従来の浮床構造では
例えばＪＩＳで規定するところの３８７５Ｎという大き
な衝撃力が作用すると、第２１図に示す如く緩衝材ｂ上
の根太材ｃと表面の床パネルｄとが瞬間的に大きな曲げ
変形を生じて、床面に大きな曲げ振動が発生する。この
曲げ振動は、床パネルｄのサイズやその下に配した根太
材ｃのサイズ及び間隔によって振動周波数が変化してく
るが、根太材ｃや床パネルｄの振動が大きい程、又、振
動が長い間継続する程、床スラブに対して上記振動が付
加されてしまい、その結果階下への放出音が大きくなっ
て床衝撃音レベルが基準値を満足出来なくしているもの
と推定される。Considering the reason for this, in the above conventional floating floor structure, when a large impact force of 3875 N, which is specified by JIS, acts, as shown in FIG. 21, a joist material c on the cushioning material b and a floor panel d on the surface are used. Causes a large bending deformation instantaneously, causing a large bending vibration on the floor surface. This bending vibration changes its vibration frequency depending on the size of the floor panel d and the size and spacing of the joists c arranged below it. The larger the vibration of the joists c and the floor panel d, the more the vibration. It is presumed that the vibration is added to the floor slab as it continues for a long time, and as a result, the sound emitted to the downstairs becomes louder and the floor impact sound level cannot satisfy the reference value.
その場合、特に、上記床構造では、床衝撃力が作用して
床パネルｄが曲げ変形したとき、該床パネルｄと緩衝材
ｂとの間の空気層ｅにおける空気が根太材ｃでその流動
が拘束されて圧縮され、この空気圧の一部は根太材ｃ，
ｃの間に沿って横方向に逃げるが、一部は垂直方向に空
気バネとして働いて緩衝材ｂを介して床スラブａに力
Ｐ′を伝え、またこの空気圧の緩衝材ｂからの反力が床
パネルｄに作用して該パネルｄに曲げ振動を起こさせ
る。つまり、上記空気層ｅに働く圧縮・膨張力に起因し
て床スラブａおよび床パネルｄの各々の振動が増幅され
て床衝撃音が増長されるものと推定される。In that case, particularly in the above floor structure, when the floor impact force acts and the floor panel d is bent and deformed, the air in the air layer e between the floor panel d and the cushioning material b flows in the joist material c. Are constrained and compressed, and part of this air pressure is joist timber,
Although it escapes laterally along the space between c, a part acts vertically as an air spring to transmit a force P ′ to the floor slab a through the cushion b, and a reaction force of this air pressure from the cushion b. Acts on the floor panel d to cause bending vibration to the panel d. That is, it is estimated that the vibrations of the floor slab a and the floor panel d are amplified due to the compression / expansion force acting on the air layer e, and the floor impact sound is increased.
本発明は、かかる推考に基づき、床衝撃力の作用時に床
下地と床パネルとの間の空気層に働く圧縮・膨張力を低
減すれば、床パネルの曲げ振動が速かにおさまって床下
地に伝わる力および床パネルに伝わる力を低減でき、結
果として床パネル及び床下地の振動を大幅に減じること
ができることに着目し、これにより床材表面の曲げ振動
は勿論のこと、床下地自体の振動も小さくして、従来の
浮床構造の限界であった床衝撃音レベルＬ−５５よりも
高い遮音性能，例えばＬ−５０，Ｌ−４５等の遮音性能
を発揮させるようにすることを目的とする。The present invention is based on this inference, and if the compression / expansion force acting on the air layer between the floor substrate and the floor panel during the action of the floor impact force is reduced, the bending vibration of the floor panel can be suppressed quickly. Focusing on the fact that the force transmitted to the floor panel and the force transmitted to the floor panel can be reduced, and as a result, the vibration of the floor panel and the floor substrate can be significantly reduced, this allows bending vibration of the floor material surface as well as that of the floor substrate itself. The purpose is to reduce the vibration so that the sound insulation performance is higher than the floor impact sound level L-55 which is the limit of the conventional floating floor structure, for example, the sound insulation performance such as L-50 and L-45. To do.
（課題を解決するための手段） 上記の目的のため、本発明では、各床パネルを緩衝材で
弾性的に支持させると共に、床衝撃力が作用したとき
に、床パネル下方の空気層において垂直方向に働く空気
の働き、つまり床下地や床パネル材の曲げ振動，及び上
下振動を助長させる空気層の圧縮・膨張力を、上記空気
層の圧縮空気を相隣る床パネル同志の側端面間を通って
床パネル上方に抜きかつ床仕上げ材との界面にて拡散さ
せることによって低減させることにある。(Means for Solving the Problems) To achieve the above object, in the present invention, each floor panel is elastically supported by a cushioning material, and when a floor impact force acts, the floor panel is vertically supported in the air layer below the floor panel. The action of the air acting in the direction, that is, the compression / expansion force of the air layer that promotes the bending vibration and the vertical vibration of the floor substrate or floor panel material, is generated between the side end faces of the floor panels that are adjacent to the compressed air in the air layer. It is to reduce it by drawing it through the floor panel above and diffusing at the interface with the floor finishing material.
具体的に、本発明の講じた解決手段は、床下地上に緩衝
材および空気層を介在させて複数枚の床パネルを弾性的
に並設載置するとともに、該床パネル上に床仕上げ材を
配設してなる床構造を対象とする。そして、上記相隣る
床パネル同志の側端面間に、床衝撃力が作用した時に上
記空気層における圧縮空気を床パネル上方に抜くよう上
記空気層を床パネル上方に連通せしめるための空気流通
路を構成する空隙を設けるとともに、該床パネルと床仕
上げ材との界面に上記空気流通路と連通した格子状の凹
溝等による空気の流通可能な通気部を設けて、床パネル
下面の圧縮空気を該床パネルの上面と床仕上げ材との界
面で拡散させる構成としたものである。Specifically, the solving means taken by the present invention is to elastically lay a plurality of floor panels side by side with a cushioning material and an air layer on a floor substrate, and to place a floor finishing material on the floor panel. The target is the floor structure. An air passage for communicating the air layer above the floor panel between the side end surfaces of the adjacent floor panels so that the compressed air in the air layer is extracted above the floor panel when a floor impact force is applied. And a ventilation part through which air can circulate by a lattice-shaped concave groove communicating with the air flow passage is provided at the interface between the floor panel and the floor finishing material. Is diffused at the interface between the upper surface of the floor panel and the floor finishing material.
（作用） 上記の構成により、本発明では、床面に衝撃力が加わっ
たとき、この衝撃力は緩衝材に伝達され、該緩衝材の圧
縮変形によって吸収緩和される。それと同時に、上記床
衝撃力によって床パネルが曲げ変形してその下方の空気
層の空気を圧縮するが、この圧縮空気は、相隣る床パネ
ル同志の側端面間の空隙によって構成される空気流通路
を介して床パネル上方に抜かれたのち、床パネルと床仕
上げ材との界面に設けた通気部にて横方向に拡散される
ので、この空気層において床パネルの下面に対して垂直
方向に働く空気の働き，つまり圧縮・膨張力が急激に低
減され、これにより空気圧を介して床下地に伝わる力お
よびこの空気圧の反力として床パネルに伝わる力が低減
し、床下地や床パネルの曲げ振動が軽減される。よっ
て、床下地の振動に伴って発生する床衝撃音の階下への
伝播が有効に低減され、Ｌ−５０といった高い遮音性能
を発揮させることが可能である。(Operation) With the above configuration, in the present invention, when an impact force is applied to the floor surface, the impact force is transmitted to the cushioning material and is absorbed and relaxed by the compressive deformation of the cushioning material. At the same time, the floor panel is bent and deformed by the floor impact force to compress the air in the air layer below the floor panel, and this compressed air flows through the air flow formed by the gap between the side end faces of the adjacent floor panels. After being extracted above the floor panel through the passage, it is diffused laterally in the ventilation part provided at the interface between the floor panel and the floor finishing material. The working air, that is, the compression / expansion force is drastically reduced, which reduces the force that is transmitted to the floor substrate via air pressure and the force that is transmitted to the floor panel as a reaction force of this air pressure, and bends the floor substrate and floor panel. Vibration is reduced. Therefore, the propagation of the floor impact sound generated due to the vibration of the floor base to the downstairs is effectively reduced, and a high sound insulation performance such as L-50 can be exhibited.
（実施例） 以下、本発明の実施例について図面に基づいて説明す
る。(Example) Hereinafter, the Example of this invention is described based on drawing.
第１図および第２図は本発明の実施例に係る床構造を示
し、１はコンクリートスラブ等よりなる床下地であっ
て、該床下地１上には、グラスウールマット又はロック
ウールマット等の繊維質材、あるいは連続気泡の発泡ウ
レタンマット等、層状の緩衝材２が配設されている。該
緩衝材２の上には、支持体３を介して、剛性の高いソリ
ッドパネルよりなる複数枚の床パネル４，４…が緩衝材
２との間に空気層５を保持した状態で並設載置されてい
る。さらに、床パネル４上面には床仕上げ材６が配設さ
れている。1 and 2 show a floor structure according to an embodiment of the present invention, in which 1 is a floor base made of concrete slab or the like, and a fiber such as glass wool mat or rock wool mat is provided on the floor base 1. A layered cushioning material 2 such as a quality material or an open-cell urethane mat is provided. A plurality of floor panels 4, 4 made of solid panels having high rigidity are arranged side by side on the cushioning material 2 via a support body 3 in a state in which an air layer 5 is held between the cushioning material 2 and the floor panels. It has been placed. Further, a floor finishing material 6 is arranged on the upper surface of the floor panel 4.
尚、上記床パネル４としては、ＬＶＬ（Laminated Vene
er Lumber：単板積層材）、パーティクルボード、木質
セメント板等の木質パネル、配筋モルタルパネル、コン
クリートパネル、ＧＲＣパネル、セメント押出しパネル
等の無機質パネルなどのソリッドパネルの他、さらに曲
げ剛性を高めるためにこれらのソリッドパネルの上面や
下面に鉄板やＦＲＰ板等の引張り強度の強い材料の板材
を接着一体化した複合パネル、あるいは第７図、第８
図、第９図、第１０図〜第１２図の如く木質の中空パネ
ル又は押出し中空パネル４′ａ単体やその上面又は下面
にスレート板等の板材４′ｂ，４′ｂを接着一体化した
複合パネル等が用いられる。The floor panel 4 includes LVL (Laminated Vene).
er Lumber: Solid panel such as laminated wood), particle board, wood panel such as wood cement board, reinforced mortar panel, concrete panel, GRC panel, inorganic panel such as cement extrusion panel, etc., and further increase bending rigidity. For this purpose, a composite panel in which a plate material made of a material having a high tensile strength such as an iron plate or an FRP plate is adhered and integrated on the upper surface or the lower surface of these solid panels, or FIGS.
As shown in FIG. 9, FIG. 10 and FIG. 12 to FIG. 12, a wooden hollow panel or extruded hollow panel 4'a alone or plate members 4'b, 4'b such as slate plates are bonded and integrated to the upper surface or the lower surface thereof. A composite panel or the like is used.
また、上記緩衝材２は、床下地１上に全面に層状に配設
したものの他、第４図〜第６図に示すようにブロック状
に分散させて配設したものでもよい。このブロック状の
緩衝材２の場合、第５図の如く支持体３の機能を兼用さ
せて該支持体３を省略できるようにしてもよい。また、
上記支持体３は、棒状体を一方向に連続して配設したも
ののほか、第８図及び第９図の如く帯状体又はブロック
体を分断して不連続に配設したものであってもよい。さ
らに、この支持体３は予め床パネル４に一体的に設けて
おいてもよい。Further, the cushioning material 2 may be arranged on the entire surface of the floor base 1 in a layered manner, or may be dispersed in a block shape as shown in FIGS. 4 to 6. In the case of the block-shaped cushioning material 2, the function of the support body 3 may also be provided so that the support body 3 can be omitted as shown in FIG. Also,
The support 3 may be one in which rod-shaped bodies are continuously arranged in one direction, or one in which strip-shaped bodies or block bodies are divided and discontinuously arranged as shown in FIGS. 8 and 9. Good. Further, the support 3 may be previously provided integrally with the floor panel 4.
そして、本発明の特徴として、上記相隣る床パネル４，
４同志の側端面間には、適宜間隔の隙間よりなる空気流
通路７が設けられており、床衝撃力が作用した時、床パ
ネル４の曲げ変形や緩衝材２の圧縮歪みによる床パネル
４の沈みで該床パネル４下方の空気層５における空気が
圧縮されると、この圧縮空気を第２図の如く上記空気流
通路７を介して床パネル４上方に抜くようにしている。
さらに、上記床パネル４とその上部の床仕上げ材６との
界面には、該床仕上げ材６の下面に設けた格子状溝より
なり、かつ上記空気流通路７と連通した空気の流通可能
な通気部８が設けられており、上記空気流通路７を介し
て床パネル４上方に抜かれた圧縮空気を、床パネル４と
床仕上げ材６との界面の通気部８で横方向に拡散させる
ように構成されている。And, as a feature of the present invention, the adjacent floor panels 4,
An airflow passage 7 is formed between the side end surfaces of the floor members 4 with appropriate intervals, and when a floor impact force is applied, the floor panel 4 is bent and deformed or the cushioning material 2 is compressed and strained. When the air in the air layer 5 below the floor panel 4 is compressed by the sinking, the compressed air is extracted above the floor panel 4 through the air flow passage 7 as shown in FIG.
Further, the interface between the floor panel 4 and the floor finishing material 6 above the floor panel 4 is a lattice-like groove provided on the lower surface of the floor finishing material 6, and the air communicating with the air flow passage 7 can flow. A ventilation part 8 is provided so that the compressed air extracted above the floor panel 4 through the air flow passage 7 is laterally diffused by the ventilation part 8 at the interface between the floor panel 4 and the floor finishing material 6. Is configured.
上記相隣る床パネル４，４同志の側端面間に設ける空気
流通路７としては、 上述の如く各床パネル４，４…を分離状態に配設して
端面間に隙間を設けること、 第３図、第９図及び第１３図の如く相隣る一方の床パ
ネル４の端面に歯形状の切欠き部７ａを設けて、床パネ
ル４，４同志の突合せ面に該切欠き部７ａによる空隙を
設けること、 第８図の如く相隣る双方の床パネル４，４の端面に互
いに遊嵌合する歯形部７ｂ，７ｂを設けて、該歯形部７
ｂ，７ｂ同志の嵌合間に空隙を設けること、 床パネル４，４同志の側端面間を第４図の如く孔７ｃ
やスリットを有する接合板７ｄ、又は第１０図、第１４
図及び第１５図の如く孔７ｃやスリットを有する雇い実
７ｅを介在させて接続すること、 第１２図の如く上記雇い実７ｅを断続的に介在させて
該各雇い実７ｅ，７ｅ間に空隙を設けること、 第１１図の如く上記雇い実７ｅを通気性材料（例えば
繊維状物をバインダーで固めたもの、あるいは連通した
空隙部を有する木毛セメント板等の多孔質材料）によっ
て形成すること 床パネル４，４同志の側端面間に第１６図の如く波形
板からなるスペーサ７ｈ、又は第１７図の如く木材やゴ
ム等よりなるブロック状スペーサ７１を設けること 等によって形成される。この空気流通路７の幅や孔の径
は、床面全体に対する空気流通路の開口率で０．５％〜
１０％になるようにパネルの各周辺に略均一に開口させ
ておくものであり、床パネル４が３０３mm×１８１８mm
サイズの場合４〜８mmの間隔を設けておけば充分であ
る。尚、空気流通路７の床面に対する開口率０．５％以
下とすると、床パネル４下方に空気がパネル側端面間の
空隙から排出される量が少なくなって圧縮空気による反
動が低下されず、空気自体は流出しても床衝撃力の如く
瞬間的に作用する荷重に対しては、空気の流出抵抗が大
きくなって、パネル上部まで充分排出できない為であ
る。又、上記開口率は１０％以上とすることもできる
が、床パネル４の間の隙間を広くとると、床仕上げ材６
の施工性が低下すると共に、床面の強度（特に局部荷重
に対する支持力）にバラツキが生じて、上記隙間部分に
おける床仕上げ材６の破損が生じ易いので１０％以下の
開口率とし、空隙の幅は２〜２０mmとすることが望まし
い。さらに、上記空気流通路７は、床パネル４下方の空
気が流出し易いように第６図に示す如く床パネル４端部
下面に面取り部７ｊを設けたり、溝加工を施すことによ
り、上記空気流通路７への空気の流入部を形成するよう
にしてもよい。特に、第６図の如く床パネル４下面に溝
７ｋを均一に設け、かつその溝端部を床パネル４端部で
上方へ傾斜した傾斜面（面取り部７ｊ）に形成しておく
と、床パネル４下方の圧縮空気が上記溝７ｋに沿って案
内されて床パネル４下面の側端部よりスムーズに上方に
向って排出されるので好ましい。As the air flow passage 7 provided between the side end surfaces of the floor panels 4 and 4 adjacent to each other, as described above, the floor panels 4, 4, ... Are arranged in a separated state and a gap is provided between the end surfaces. As shown in FIG. 3, FIG. 9 and FIG. 13, a tooth-shaped notch portion 7a is provided on the end surface of one adjacent floor panel 4, and the notch portion 7a is provided at the abutting surface of the floor panels 4, 4. A space is provided, and tooth profile portions 7b, 7b that are loosely fitted to each other are provided on the end surfaces of the floor panels 4, 4 adjacent to each other as shown in FIG.
b, 7b A space is provided between the mating members, and a hole 7c is formed between the side end faces of the floor panels 4, 4 as shown in FIG.
Bonding plate 7d having slits or slits, or FIGS.
As shown in FIG. 15 and FIG. 15, connection is made by interposing a employment case 7e having a hole 7c and a slit, and as shown in FIG. 12, the employment case 7e is intermittently intervened to form a gap between the respective employment cases 7e, 7e. 11) to form the employee 7e by a breathable material (for example, a fibrous material hardened with a binder, or a porous material such as a wood wool cement board having communicating voids) as shown in FIG. It is formed by providing a spacer 7h made of a corrugated plate as shown in FIG. 16 or a block-shaped spacer 71 made of wood or rubber as shown in FIG. 17 between the side end surfaces of the floor panels 4, 4. The width of the air flow passage 7 and the diameter of the holes are 0.5% to 0.5% in terms of the opening ratio of the air flow passage to the entire floor surface.
The floor panel 4 has a size of 303 mm x 1818 mm, which is opened evenly around each edge of the panel so as to be 10%.
In case of size, it is enough to have a space of 4 to 8 mm. When the opening ratio of the air flow passage 7 to the floor surface is 0.5% or less, the amount of air discharged below the floor panel 4 from the gap between the panel-side end faces is small, and the reaction due to the compressed air is not reduced. The reason is that, even if the air itself flows out, the resistance against the outflow of air becomes large against a load that acts momentarily such as a floor impact force, and the air cannot be sufficiently discharged to the upper part of the panel. Although the opening ratio may be 10% or more, if the space between the floor panels 4 is wide, the floor finishing material 6 can be formed.
Of the floor surface 6 (especially, the supporting force against a local load) varies and the floor finishing material 6 is easily damaged in the gap portion. Therefore, the opening ratio is 10% or less. The width is preferably 2 to 20 mm. Further, the air flow passage 7 is provided with a chamfered portion 7j on the lower surface of the end portion of the floor panel 4 as shown in FIG. You may make it form the inflow part of the air to the flow path 7. In particular, as shown in FIG. 6, if the grooves 7k are evenly provided on the lower surface of the floor panel 4 and the groove ends are formed on the inclined surface (chamfered portion 7j) inclined upward at the end of the floor panel 4, the floor panel It is preferable that the compressed air below 4 is guided along the groove 7k and smoothly discharged upward from the side end of the lower surface of the floor panel 4.
又、本発明において、床パネル４を第７図、第８図、第
９図、第１０〜１２図の如く、パネル側面に開口した中
空部４ｄを有する中空パネルによって形成し、床パネル
４の側端面間における空隙による空気流通路７と、この
中空部４ｄとを連通させて形成すると、圧縮空気が床パ
ネル４内部にも拡散されて防音性を一層向上させること
が出来て好ましい。Further, in the present invention, the floor panel 4 is formed by a hollow panel having a hollow portion 4d opened on the side surface of the panel as shown in FIGS. 7, 8, 9 and 10 to 12. It is preferable that the air flow passage 7 formed by the gap between the side end faces and the hollow portion 4d are communicated with each other so that the compressed air can be diffused into the floor panel 4 to further improve the soundproofing.
即ち、中空パネルによる場合には床パネル４下方の圧縮
空気が、空気流通路７を介して床仕上げ材６の下面に達
するまでに、該圧縮空気が一旦床パネル４内部に拡散さ
れる為、空気流通路７の幅を狭くしても充分空気圧の上
昇を低下させることが可能であり、しかも、床パネル４
の振動音も上記中空部４ｄの中で反射吸収されて床パネ
ル４の固体振動に基づく放射音も低下させることが出来
るものである。That is, when the hollow panel is used, the compressed air below the floor panel 4 is once diffused into the floor panel 4 by the time the air reaches the lower surface of the floor finishing material 6 via the air flow passage 7. Even if the width of the air flow passage 7 is narrowed, it is possible to sufficiently reduce the increase in the air pressure, and moreover, the floor panel 4
This vibration sound is also reflected and absorbed in the hollow portion 4d, and the radiation sound due to the solid vibration of the floor panel 4 can be reduced.
また、上記床パネル４と床仕上げ材６との界面に設ける
通気部８は、 第１図及び第１８図の如く床仕上げ材６下面に、切削
やプレス加工によって形成された直交する格子状溝や平
行な溝等よりなる凹溝 第１９図の如く床パネル４上面に、同じく切削やプレ
ス加工によって形成された格子状溝や平行な溝等よりな
る凹溝 第７図の如く上記界面に挿入介在させた通気性シート
やマット、フェルト８ａ 第６図の如く床パネル４上面又は床仕上げ材６下面に
突起体８ｃを散在させて一体に形成して両者４，６間に
隙間を設けること 第４図及び第５図の如く上記界面に根太状やレール状
の支持体８ｂを間隔をあけて配設すること これらの組合せ 等によって形成される。さらに、上記通気部８は、床仕
上げ材６の接合部（目地部）に連通させて、上記空気流
通路７からの圧縮空気を通気部８から更に床仕上げ材６
表面まで拡散させるようにしてもよい。Further, the ventilation part 8 provided at the interface between the floor panel 4 and the floor finishing material 6 is formed by orthogonal grid-like grooves formed on the lower surface of the floor finishing material 6 by cutting or pressing as shown in FIGS. 1 and 18. And grooves formed of parallel grooves, etc. As shown in FIG. 19, the grooves formed by cutting and press working on the upper surface of the floor panel 4 and grooves formed of parallel grooves and the like are inserted in the interface as shown in FIG. An intervening breathable sheet or mat, felt 8a Protrusions 8c are scattered and integrally formed on the upper surface of the floor panel 4 or the lower surface of the floor finishing material 6 as shown in FIG. As shown in FIGS. 4 and 5, arranging joist-shaped or rail-shaped supports 8b at the above-mentioned interface with a space therebetween is formed by a combination of these. Furthermore, the ventilation part 8 is communicated with the joint part (joint part) of the floor finishing material 6 so that the compressed air from the air flow passage 7 is further passed from the ventilation part 8 to the floor finishing material 6.
You may make it diffuse to the surface.
したがって、上記実施例においては、床面に衝撃力Ｐが
加わったとき、この衝撃力Ｐは床パネル４より緩衝材２
に伝達し、この伝達力が該緩衝材２の圧縮変形により吸
収緩和されるので、床下地１への伝達が抑制されて該床
下地１の振動が低減される。それと同時に、上記床衝撃
力Ｐによって床パネル４が曲げ変形すると共に、緩衝材
２の緩衝作用による圧縮歪みの分だけ沈みを生じて該床
パネル４直下の空気層５における空気を圧縮するが、こ
の空気圧は横方向に拡散するだけでなく、相隣るパネル
４，４同志の側端面間の空気流通路７を介して床パネル
４上方に抜けた後（中空パネルからなる床パネル４の場
合は、床パネル４の中空部４ｄで一旦拡散されて床パネ
ル４の上方に抜けた後）、該床パネル４と床仕上げ材６
との界面の通気部８において横方向に拡散されることに
より、床パネル４の直下に作用する空気圧が速かに低下
する。このことにより、従来の如く床パネル４が曲げ変
形や沈みによる空気層５における圧縮空気の動き（圧縮
圧力による床下地への衝撃力の伝達・膨張力による床パ
ネル４の曲げ振動の増幅）が低減されて、床下地１に衝
撃力が伝わるのが軽減されるとともに、この空気圧の反
力が上方の床パネル４に伝わるのが軽減される。これに
より、床下地１の振動が抑制されるとともに、床パネル
４の曲げ振動及び上下振動が低減されることになり、こ
の相乗作用により床衝撃音の階下への伝播を有効に低減
することができる。Therefore, in the above embodiment, when the impact force P is applied to the floor surface, the impact force P is applied from the floor panel 4 to the cushioning material 2
Since this transmission force is absorbed and relaxed by the compressive deformation of the cushioning material 2, the transmission to the floor base 1 is suppressed and the vibration of the floor base 1 is reduced. At the same time, the floor panel 4 is bent and deformed by the floor impact force P, and sinking is generated by the amount of compressive strain due to the cushioning action of the cushioning material 2 to compress the air in the air layer 5 immediately below the floor panel 4. This air pressure not only diffuses laterally but also escapes above the floor panel 4 through the air flow passage 7 between the side end surfaces of the adjacent panels 4 and 4 (in the case of the floor panel 4 consisting of a hollow panel, Is once diffused in the hollow portion 4d of the floor panel 4 and passed above the floor panel 4), and the floor panel 4 and the floor finishing material 6
The air pressure acting immediately below the floor panel 4 is rapidly reduced by the lateral diffusion in the ventilation part 8 at the interface with. As a result, the movement of the compressed air in the air layer 5 due to the bending deformation or sinking of the floor panel 4 as in the conventional case (the transmission of the impact force to the floor base due to the compression pressure and the amplification of the bending vibration of the floor panel 4 due to the expansion force) is performed. This reduces the transmission of the impact force to the floor base 1, and also reduces the transmission of the reaction force of the air pressure to the floor panel 4 above. As a result, the vibration of the floor base 1 is suppressed, and the bending vibration and the vertical vibration of the floor panel 4 are reduced, and the synergistic effect can effectively reduce the propagation of the floor impact sound to the downstairs. it can.
（実施例） 次に、具体的に、床パネルとして幅９０９mm、長さ１８
１８mm、厚さ５６mmのスレート貼り木質中空パネルを用
意する。この中空パネルは、１５mm厚のパーティクルボ
ードの表面に８mm厚のスレートを一体貼着した複合パネ
ルを面材とし、この両面材間に２０×２０mmの木製桟木
を４０mm間隔で配してなるものである。そして、コンク
リートスラブ（密度２３００kg/m3、厚さ１５０mm）上
に、密度６４kg/m3、厚さ５０mmのグラスウールマット
を配設し、その上に１２mm厚の棒状支持体を介して上記
中空パネルを、該パネル間に５mmの隙間をあけて複数枚
載置し、さらにその上に床仕上げ材としてカーペットを
敷設して床を作り（本発明例）、この床に対しＪＩＳ−
Ａ１４１８に規定されている重量衝撃音発生装置にて衝
撃力を加え、階下より床衝撃音を測定したところ、第２
０図にＡ線で示すような遮音性能を得た。(Example) Next, specifically, a floor panel having a width of 909 mm and a length of 18
Prepare a slate-bonded wooden hollow panel with a thickness of 18 mm and a thickness of 56 mm. This hollow panel is a composite panel in which a slate with a thickness of 8 mm is integrally attached to the surface of a particle board with a thickness of 15 mm is used as a face material, and 20 × 20 mm wooden piers are arranged at 40 mm intervals between the both sides. is there. The concrete slab (density 2300 kg / m 3, a thickness of 150 mm) on a density 64kg / m 3, is disposed a glass wool mat having a thickness of 50 mm, the hollow panels via a rod support 12mm thick thereon A plurality of sheets are placed with a gap of 5 mm between the panels, and a carpet is laid on the panel as a floor finishing material to form a floor (Example of the present invention).
When the impact force was applied by the heavy impact sound generator specified in A1418 and the floor impact sound was measured from the downstairs,
Sound insulation performance was obtained as indicated by line A in FIG.
これに対し、上記本発明例との比較のため、比較例とし
て上記中空パネル間にほとんど隙間を設けずに施工し
て、その上に下面が平滑な木質床材を釘打ち施工した場
合の遮音性能を測定したところ、第２０図にＢ線で示す
結果を得た。尚、この試験で使用したコンクリートスラ
ブ自体の遮音性能はＣ線で示した性能であった。On the other hand, for comparison with the example of the present invention, as a comparative example, the construction was performed with almost no gap between the hollow panels, and the sound insulation when nailing a wooden floor material with a smooth lower surface thereon. When the performance was measured, the result shown by the line B in FIG. 20 was obtained. The sound insulation performance of the concrete slab itself used in this test was the performance indicated by the C line.
第２０図より明らかなように、本発明例では、比較例と
同じ形状、サイズからなる床パネルを緩衝材上に載置し
ているにも拘らず、床パネル下方の空気層が衝撃圧縮を
受けた際に該床パネル間の隙間を介してその上方に排気
可能な構造としているため、衝撃力が加わった時に圧縮
空気圧がほぼ同時に排出されて低下することから、床パ
ネル下方に衝撃力が直接空気圧を介して伝わるのが軽減
され、また空気圧の反力による床パネルの曲げ振動も小
さくなり、比較例の如く空気層の空気圧が抜けない構造
に対して、本発明によれば床パネルの厚さや緩衝材の厚
さをそのままにして通過音を５〜８ｄＢ低減することが
できることが判る。従って、比較例の遮音等級はＬ−５
５程度であり、床衝撃音が“気になる”程度に聞こえる
ところまでの性能であるのに対し、本発明例では遮音等
級がＬ−４７まで軽減され、床衝撃音が“ほとんど気に
ならない”ようになって著しく低減できるものである。As is clear from FIG. 20, in the example of the present invention, although the floor panel having the same shape and size as the comparative example is placed on the cushioning material, the air layer below the floor panel does not compress the shock. Since the structure is such that when it is received, it can be exhausted upward through the gap between the floor panels, the compressed air pressure is discharged at the same time and decreases when an impact force is applied. Direct transmission via air pressure is reduced, bending vibration of the floor panel due to reaction force of air pressure is also reduced, and according to the present invention, the floor panel according to the present invention has a structure in which the air pressure of the air layer does not escape like the comparative example. It can be seen that the passing sound can be reduced by 5 to 8 dB without changing the thickness or the thickness of the cushioning material. Therefore, the sound insulation grade of the comparative example is L-5.
The performance is about 5 and the floor impact sound can be heard as "anxious", whereas in the example of the present invention, the sound insulation class is reduced to L-47, and the floor impact sound is "almost unnoticeable". It can be remarkably reduced.
（発明の効果） 以上説明したように、本発明の床構造によれば、床衝撃
力が加わったとき、床パネル下方の空気層における空気
圧を瞬時に床パネル上方に抜きかつ横方向に拡散して排
出して、該空気圧を介しての衝撃力の床下地への伝達お
よび該空気圧の反力による床パネルの曲げ振動の助長を
軽減するようにしたので、床面の高さを高くすることな
く床下地自体の振動および床パネルの曲げ振動が低減さ
れて床衝撃音の放出を小さくして優れた遮音性能を発揮
することができる。よって、高層建築あるいは住宅等の
２階部分の床構造として好適なものを提供することがで
きる。又、床下の空気が流動することによって湿気の滞
留が少なくなって床下結露も防止されるという効果も有
する。(Effects of the Invention) As described above, according to the floor structure of the present invention, when a floor impact force is applied, the air pressure in the air layer below the floor panel is instantaneously released above the floor panel and diffused laterally. It is designed to increase the height of the floor surface by discharging the impact force through the air pressure to the floor substrate and reducing the promotion of bending vibration of the floor panel due to the reaction force of the air pressure. The vibration of the floor base itself and the bending vibration of the floor panel are reduced, and the emission of the floor impact sound can be reduced to achieve excellent sound insulation performance. Therefore, it is possible to provide a suitable floor structure for the second floor of a high-rise building or a house. Further, since the air under the floor flows, retention of moisture is reduced, and dew condensation under the floor is prevented.
第１図〜第１９図は本発明の実施例を例示し、第１図は
実施例の床構造を示す斜視図、第２図は同断面図であ
る。第３図、第４図および第５図はそれぞれ変形例を示
す斜視図、第６図および第７図もそれぞれ変形例を示す
断面図である。第８図〜第１２図はそれぞれ他の変形例
を示す斜視図である。第１３図および第１４図は空気流
通路の形成例を示す平面図、第１５図は第１４図の要部
断面図であり、第１６図および第１７図の他の空気流通
路の形成例を示す平面図である。第１８図および第１９
図はそれぞれ通気部の形成例を示す断面図である。第２
０図は本発明例による遮音性能を比較例と比較して示す
測定結果図である。第２１図は従来の浮床を示す断面図
である。 １…床下地、２…緩衝材、４…床パネル、５…空気層、
６…床仕上げ材、７…空気流通路、８…通気部。1 to 19 exemplify an embodiment of the present invention, FIG. 1 is a perspective view showing a floor structure of the embodiment, and FIG. 2 is a sectional view of the same. FIG. 3, FIG. 4 and FIG. 5 are perspective views showing modified examples, and FIG. 6 and FIG. 7 are sectional views showing modified examples. 8 to 12 are perspective views showing other modified examples. 13 and 14 are plan views showing an example of formation of the air flow passage, FIG. 15 is a sectional view of an essential part of FIG. 14, and examples of formation of other air flow passages of FIG. 16 and FIG. FIG. 18 and 19
Each of the drawings is a cross-sectional view showing an example of forming a ventilation part. Second
FIG. 0 is a measurement result diagram showing the sound insulation performance of the example of the present invention in comparison with the comparative example. FIG. 21 is a sectional view showing a conventional floating floor. 1 ... Floor base, 2 ... Buffer material, 4 ... Floor panel, 5 ... Air layer,
6 ... Floor finishing material, 7 ... Air flow passage, 8 ... Ventilation part.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−1969（ＪＰ，Ａ) 特開 昭62−50556（ＪＰ，Ａ) 特公 平４−67544（ＪＰ，Ｂ２) 特公 平４−35588（ＪＰ，Ｂ２) 特公 平５−46420（ＪＰ，Ｂ２) 実公 平４−3067（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP 62-1969 (JP, A) JP 62-50556 (JP, A) JP 4-67544 (JP, B2) JP 4- 35588 (JP, B2) Japanese Patent Publication 5-46420 (JP, B2) Actual Public Publication 4-3067 (JP, Y2)
Claims (2)
て複数枚の床パネルを並設載置するとともに、該床パネ
ル上に床仕上げ材を配設してなる床構造において、上記
相隣る床パネル同志の側端面間に、床衝撃力が作用した
時に上記空気層における圧縮空気を床パネル上方に抜く
よう上記空気層を床パネル上方に連通せしめるための空
気流通路を構成する空隙を設けるとともに、該床パネル
と床仕上げ材との界面に上記空気流通路と連通した空気
の流通可能な通気部を設けたことを特徴とする床構造。1. A floor structure in which a plurality of floor panels are placed side by side on a floor substrate with a cushioning material and an air layer interposed therebetween, and a floor finishing material is arranged on the floor panels. A gap that forms an air flow passage between the side end surfaces of adjacent floor panels so that the air layer communicates with the floor panel above so that the compressed air in the air layer is withdrawn above the floor panel when a floor impact force is applied. And a ventilation part through which air can flow, which is in communication with the air flow passage, is provided at the interface between the floor panel and the floor finishing material.
有する中空パネルよりなり、空気流通路と上記床パネル
の中空部とが連通していることを特徴とする特許請求の
範囲第(1)項記載の床構造。2. The floor panel is a hollow panel having a hollow portion opened to the side surface of the panel, and the air flow passage communicates with the hollow portion of the floor panel. ) Section floor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61309514A JPH0633677B2 (en) | 1986-12-24 | 1986-12-24 | Floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61309514A JPH0633677B2 (en) | 1986-12-24 | 1986-12-24 | Floor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63161256A JPS63161256A (en) | 1988-07-04 |
| JPH0633677B2 true JPH0633677B2 (en) | 1994-05-02 |
Family
ID=17993914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61309514A Expired - Lifetime JPH0633677B2 (en) | 1986-12-24 | 1986-12-24 | Floor structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633677B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2646469B2 (en) * | 1987-04-30 | 1997-08-27 | 株式会社ブリヂストン | Floor structure |
| JPH0449368A (en) * | 1990-06-15 | 1992-02-18 | Daiken Trade & Ind Co Ltd | Double floor construction |
| JP2557562Y2 (en) * | 1991-03-04 | 1997-12-10 | ヤマハ 株式会社 | Floating floor structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679276B2 (en) * | 1990-08-31 | 1994-10-05 | インターナショナル・ビジネス・マシーンズ・コーポレイション | Method for increasing throughput of same-dependent process, process generation circuit, cyclic redundancy code generator, and controller system |
-
1986
- 1986-12-24 JP JP61309514A patent/JPH0633677B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63161256A (en) | 1988-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4888927A (en) | Floating floor | |
| EP0281419B1 (en) | Floor panel for floating floor | |
| JPH0332673Y2 (en) | ||
| JPH0314505Y2 (en) | ||
| JPH0633677B2 (en) | Floor structure | |
| JPH0546420B2 (en) | ||
| JPH0633676B2 (en) | Floor panel for floating floor | |
| JPH0435589B2 (en) | ||
| JPH0546422B2 (en) | ||
| JPH0467544B2 (en) | ||
| JPH0545708Y2 (en) | ||
| EP1149212B1 (en) | Flooring structure | |
| JP7496580B2 (en) | Floor structure and floor panel used in said floor structure | |
| JPH0435588B2 (en) | ||
| JP4121303B2 (en) | Floor structure and skirting board used for floor structure | |
| JP2005090090A (en) | Sound insulation flooring | |
| JP2001032435A (en) | Sound insulating composite panel for floor | |
| JPH0458546B2 (en) | ||
| JP2023175573A (en) | Dry double-floor structure, floor panel, and supporting leg | |
| JPS63161257A (en) | Float floor structure | |
| JPH06235242A (en) | Building floor part sound insulating structure | |
| JP2003096962A (en) | Floor structure of building | |
| JP2002309708A (en) | Sound insulating structure of floor | |
| JPH0546423B2 (en) | ||
| JPH0663347B2 (en) | Soundproof floor structure and cushioning material for underfloor |