JPH08144486A - Flexible soundproof floorboard - Google Patents

Abstract

PURPOSE: To provide a flexible soundproof floorboard in a simple structure with soundproofing processings and grooves giving flexibility provided on the reverse side thereof. CONSTITUTION: A number of dioagonal grooves 5, 6, diagonally extending toward one side of a long board-like body 1 serving as a principal member of a floorboard, are provided on the reverse side of the board-like body 1, and because of these diagonal grooves 5, 6, flexibility and adaptability to a subfloor are given to the board-like body 1. The diagonal grooves 5, 6 are formed in a depth that pierces from the reverse side of the board-like body through the upper face of tongues 3a, 3b provided at the long and the short sides of the board-like body 1, and cut-out grooves 5a, 6a, piercing through the upper and the lower faces of the tongues 3a, 3b at the ends of the diagonal grooves 5, 6 on positions of the tongues 3a, 3b, are formed. Air gathering in a space between the floorboard and the subfloor is allowed to flow to the outside through the diagonal grooves 5, 6 and the cut-out grooves 5a, 6a, and thereby impact sound can be relieved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は優れた防音性を有する可
撓性床板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible floor board having excellent soundproofness.

【０００２】[0002]

【従来の技術】床上に物が落下したり子供等が飛び跳ね
たりした場合、その衝撃力によって床板が振動して床下
地材と該床板との間に滞留している空気が圧縮され、衝
撃力が騒音として階下に伝達することがある。このた
め、床振動時の圧縮空気を外部に逃がして騒音の発生を
防止するように構成した防音床板が知られている。例え
ば実公平４ー３０６７号公報に記載されているように、
下面に適宜深さの凹溝を縦横に形成すると共に雄実部に
凹溝の端部と連通する切欠空間部を形成して床振動時の
圧縮空気を凹溝から切欠空間部を通じて外部に逃がすよ
うに構成した床板がある。2. Description of the Related Art When an object is dropped on the floor or a child or the like bounces off, the impact force causes the floor plate to vibrate and the air accumulated between the floor base material and the floor plate is compressed, resulting in an impact force. May be transmitted to the downstairs as noise. For this reason, there is known a soundproof floor board configured so that compressed air at the time of floor vibration is released to the outside to prevent noise generation. For example, as described in Japanese Utility Model Publication No. 4-3067,
A concave groove with an appropriate depth is formed vertically and horizontally on the lower surface, and a notch space part that communicates with the end of the groove is formed in the male part to allow compressed air during floor vibration to escape from the groove to the outside through the notch space part. There is a floorboard configured as.

【０００３】一方、不陸等が生じている床下地との馴染
み性を良くするために、その裏面に幅方向に横切る適宜
深さの裏溝を多数状、長さ方向に所望間隔毎に刻設して
曲げ剛性を弱めることにより、直貼りなどにおいて自重
で不陸に追随して変形させるようにした可撓性長尺床板
が知られている。On the other hand, in order to improve the conformability with a floor substrate having unevenness or the like, a plurality of back grooves having an appropriate depth are formed on the back surface of the back groove, and the back grooves are formed at desired intervals in the length direction. There is known a flexible long floorboard which is installed and weakened in bending rigidity so as to be deformed following the unevenness due to its own weight when directly attached.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、前者の
防音床板によれば、床板の下面に設けた凹溝とは別に該
床板の雄実部に凹溝に連通する切欠空間部を形成しなけ
ればならないために、手間を要して生産性が悪いという
問題点がある。一方、後者の可撓性床板によればその裏
溝の深さを下面から雄実部を越える深さまで刻設すれ
ば、裏溝が雄実部にも連通して該裏溝を通じて外部に空
気を逃がすことができるが、床板には直角に連接する端
面に雄実部が形成されているため、上記裏溝は一方の雄
実部、即ち、長辺側の雄実部にしか設けることができ
ず、防音効果が低下することになる。また、裏溝は床板
の長辺に対して直角な方向に設けられているために、該
長尺床板の両端を支持した場合にはその長さ方向の中央
部に撓み荷重が集中し、裏溝部分から折損する虞れがあ
る。However, according to the former soundproof floor plate, a cutout space portion communicating with the concave groove must be formed in the male part of the floor plate separately from the concave groove provided on the lower surface of the floor plate. Therefore, there is a problem that it takes time and labor and productivity is poor. On the other hand, according to the latter flexible floor plate, if the depth of the back groove is carved from the lower surface to a depth exceeding the male part, the back groove communicates with the male part as well, and the air flows outside through the back groove. However, since the male part is formed on the end face that is connected to the floor plate at a right angle, the back groove can be provided only on one male part, that is, the male part on the long side. The soundproofing effect will be reduced. Further, since the back groove is provided in the direction perpendicular to the long side of the floor plate, when the both ends of the long floor plate are supported, the bending load is concentrated on the central portion in the length direction, There is a risk of breakage from the groove.

【０００５】このため、上記のような裏溝を床板の長さ
方向にも設ければよいが、床板基材が合板のように繊維
方向が互いに直交した木質単板の積層板からなる場合
に、上記幅方向の裏溝と長さ方向の裏溝とを同一深さに
すると、繊維方向に平行方向に設けた裏溝部分の撓み剛
性が弱くて該裏溝を介して反りが生じ易くなり、これを
なくするために、撓み剛性が略同一となるように繊維方
向に平行な裏溝の深さを浅くすると、該裏溝の端部側の
雄実部に上下に貫通する裏溝を形成することができなく
なる場合が生じることになる。また、いずれにしても上
記のように長さ方向の中央部に集中する撓み荷重による
折損防止を解決することができないものである。本明は
上記問題点を全面的に解消し得る可撓性防音床板の提供
を目的とするものである。Therefore, the back groove as described above may be provided also in the length direction of the floor board. However, when the floor board base material is a laminated board of wood veneers whose fiber directions are orthogonal to each other like plywood. If the back groove in the width direction and the back groove in the length direction are made to have the same depth, the flexural rigidity of the back groove portion provided in the direction parallel to the fiber direction is weak and warpage is likely to occur through the back groove. In order to eliminate this, if the depth of the back groove parallel to the fiber direction is made shallow so that the flexural rigidity becomes substantially the same, a back groove that vertically penetrates the male part on the end side of the back groove is formed. In some cases, it cannot be formed. In any case, it is not possible to solve the breakage prevention due to the bending load concentrated on the central portion in the lengthwise direction as described above. The purpose of the present invention is to provide a flexible soundproof floor board which can completely solve the above problems.

【０００６】[0006]

【課題を解決するための手段】上記目的を達成するため
に本発明の可撓性防音床板は、板状体の平行に対向する
両端面に夫々雌雄実部が設けられていると共に該板状体
の裏面に一辺に対して斜め方向に傾斜し、且つ上記雄実
部の上面を越える深さに達する多数条の斜行溝が互いに
平行に刻設され、直角に連なる雄実部に上記多数条の斜
行溝の端部を上下面間に亘って貫通させていることを特
徴とするものである。In order to achieve the above object, a flexible soundproof floor board according to the present invention is provided with male and female parts on both end surfaces of a plate-like body which face each other in parallel and the plate-like body is provided. On the back surface of the body, a large number of oblique grooves which are inclined in a direction oblique to one side and reach a depth exceeding the upper surface of the male portion are engraved in parallel with each other, and the plurality of diagonal grooves are connected to the male portion at right angles. It is characterized in that the end of the oblique groove of the strip is penetrated between the upper and lower surfaces.

【０００７】上記可撓性防音床板において、請求項２に
記載した発明は、板状体の裏面に上記斜行溝と交差し、
且つこの斜行溝と同一深さを有する多数条の斜行溝が刻
設されてこれらの斜行溝により格子状溝を形成している
ことを特徴としている。又、請求項３に記載した発明は
上記請求項２において、雄実部に設けられた上記両斜行
溝の交差部と雄実部の端面間で形成される三角形状の板
端部を欠落させて空気流通用縦細溝に形成していること
を特徴とするものである。なお、請求項４に記載してい
るように、板状体の裏面に上記斜行溝を被覆した緩衝材
を貼着しておいてもよい。In the flexible soundproof floor board, the invention according to claim 2 is such that the back surface of the plate-like body intersects the oblique groove,
A large number of oblique grooves having the same depth as the oblique grooves are engraved, and the oblique grooves form a grid-like groove. Further, the invention described in claim 3 is the above-mentioned claim 2, in which the triangular plate end formed between the end face of the male part and the intersection of the oblique grooves provided in the male part is missing. It is characterized in that it is formed into a vertical groove for air circulation. In addition, as described in claim 4, a cushioning material that covers the oblique groove may be attached to the back surface of the plate-shaped body.

【０００８】[0008]

【作用】板状体の裏面に刻設している多数条の溝は、板
状体の一辺に対して傾斜している斜行溝であるので、板
状体の両端部側に設けられた斜行溝は板状体の長短両辺
間に亘った貫通し、板状体の中央部に設けられた斜行溝
は板状体の対向する長辺間に亘って貫通した状態とな
る。従って、板状体の長短両辺に設けられた雄実部には
これらの斜行溝の端部が存在する。そして、斜行溝は板
状体の裏面から雄実部の上面を越える深さまで刻設され
ているので、雄実部においては斜行溝は該雄実部を上下
面間に亘って貫通している。Since the multiple grooves engraved on the back surface of the plate-like body are oblique grooves that are inclined with respect to one side of the plate-like body, they are provided on both ends of the plate-like body. The oblique groove penetrates between the long and short sides of the plate, and the oblique groove provided in the center of the plate penetrates the opposite long sides of the plate. Therefore, the end portions of these oblique grooves are present in the male solid portions provided on both the long and short sides of the plate-shaped body. Since the oblique groove is formed from the back surface of the plate member to a depth exceeding the upper surface of the male solid portion, the oblique groove penetrates the male solid portion between the upper and lower surfaces in the male solid portion. ing.

【０００９】このため、この板状体からなる床板を床下
地材上に雌雄実部を互いに嵌合させて順次敷設すること
により床を構成し、この床面に衝撃力が加わった時に床
下地と床板との間の空気は圧縮、流動して斜行溝から雌
雄実部の接合面間の隙間を通じて外部に流出し、衝撃力
が緩和された衝撃音の発生が抑制されるものである。For this reason, a floor is constructed by sequentially laying a floor board made of this plate-like material on a floor base material by fitting male and female parts to each other, and when the floor surface is subjected to an impact force, the floor base material is constructed. The air between the floor plate and the floor plate is compressed and flows, and flows out from the oblique groove to the outside through the gap between the joint surfaces of the male and female real parts, so that the generation of impact noise with reduced impact force is suppressed.

【００１０】又、上記斜行溝は板状体の一辺に対して傾
斜する方向に刻設されているので、板状体のどの部分を
幅方向或いは長さ方向に切断しても、その切断方向に斜
行溝が交差していると共に隣接する斜行溝間には板状体
の肉厚部分が存在するので、この肉厚部分によって幅方
向及び長さ方向に対する曲げ強度が増大し、取扱時等に
おいて折損する虞れはなく、しかも、斜行溝によって板
状体が良好な可撓性を発揮し、床下地面の不陸等に対す
る馴染み性が良くなる。Further, since the oblique groove is formed in a direction inclining with respect to one side of the plate-like body, no matter which part of the plate-like body is cut in the width direction or the length direction, the cutting is performed. Since the diagonal groove intersects in the direction and the thick portion of the plate exists between the adjacent diagonal grooves, this thick portion increases the bending strength in the width direction and the length direction. There is no risk of breakage at the time, and the plate-like body exhibits good flexibility due to the oblique groove, and the conformability to unevenness of the floor base surface is improved.

【００１１】このような斜行溝を請求項２に記載したよ
うに、互いに交差方向に設けて格子状溝としておけば、
この格子溝によって板状体が全面的に均等な可撓性を発
揮すると共に格子溝によって囲まれた矩形状の肉厚部分
が適度の剛性を有して歩行感が良くなる。さらに、請求
項３に記載した発明は、雄実部に設けられた上記両斜行
溝の交差部と雄実部の端面間で形成される三角形状の板
端部を欠落させて空気流通用縦細溝に形成しているの
で、衝撃時に圧縮される床下地材と床板間の空気を斜行
溝から該空気流通用縦細溝を通じて円滑に流出させるこ
とができる。As described in claim 2, if such oblique grooves are provided in a crossing direction with each other to form a grid-like groove,
The lattice groove allows the plate-like body to exhibit uniform flexibility over the entire surface, and the rectangular thick portion surrounded by the lattice groove has appropriate rigidity to improve walking feeling. Further, according to the invention described in claim 3, the triangular plate end portion formed between the end portion of the male solid portion and the intersecting portion of the oblique grooves provided in the male solid portion is omitted for air circulation. Since the groove is formed in the vertical narrow groove, the air between the floor base material and the floor plate, which is compressed at the time of impact, can be smoothly discharged from the oblique groove through the air narrow vertical groove.

【００１２】[0012]

【実施例】本発明の実施例を図面について説明すると、
図１、図２は可撓性防音床板の平面図を示すもので、床
材主体を形成している板状体１は幅が30cm以上、長さが
180cm 以上の長尺板であり、その表面化粧材11には板状
体１を幅方向に複数等分（図においては４等分）するよ
うに直線状の長溝1aが全長に亘って刻設されていると共
に、両側長辺縁1b、1cと隣接する長溝1a間、及び隣接す
る長溝1a、1a間における細長板部表面には長さ方向に所
望間隔毎に上記長溝に直角な幅方向の短溝1dを刻設し
て、あたかも複数枚の小サイズの長方形床片が縦横に組
み合わせた外観を呈している。なお、長溝1aや短溝1dを
刻設することなく、化粧板基材の表面に小サイズの長方
形板片を複数枚、組み合わせて貼着した構造であっても
よい。Embodiments of the present invention will now be described with reference to the drawings.
1 and 2 are plan views of a flexible soundproof floor board, in which the plate-like body 1 forming the floor material mainly has a width of 30 cm or more and a length of 30 cm or more.
It is a long plate of 180 cm or more, and a linear long groove 1a is engraved over the entire length of the surface decorative material 11 so as to divide the plate 1 into a plurality of equal parts in the width direction (four parts in the figure). Along with the long side edges 1b, 1c between the long grooves 1a adjacent to each other, and the elongated plate portion surface between the adjacent long grooves 1a, 1a in the width direction perpendicular to the long grooves at desired intervals in the length direction. Engraved with a short groove 1d, it has the appearance of multiple small rectangular floor pieces combined vertically and horizontally. The structure may be such that a plurality of small-sized rectangular plate pieces are combined and attached to the surface of the decorative plate base material without engraving the long groove 1a and the short groove 1d.

【００１３】この板状体１の平行に対向する両長辺部と
両短辺部において、その端面の板厚方向の中央部には一
定厚みの長辺側雄実部3aと短辺側雄実部3b、及びこれら
の雄実部3a、3bが夫々嵌合可能な大きさを有する長辺側
雌実部4aと短辺側雌実部4bが形成されている。In both long side portions and both short side portions of the plate-shaped body 1 that face each other in parallel, the long side male portion 3a and the short side male portion 3a having a constant thickness are provided at the center portions of the end faces in the plate thickness direction. A real part 3b, and a long-side female real part 4a and a short-side female real part 4b having a size such that these male real parts 3a and 3b can be fitted to each other are formed.

【００１４】さらに、上記図１に示した板状体１の裏面
には図３に示すように、一辺に対して右上がりに所望の
角度でもって傾斜した斜行溝５が小間隔毎に互いに平行
に刻設されてあり、図２に示した板状体１の裏面には図
４に示すように、この右上がりの斜行溝５と、この斜行
溝５に交差する方向に傾斜した右下がりの斜行溝６とを
小間隔毎に互いに平行に刻設してこれらの斜行溝５、６
により格子状溝を形成した構造を有している。これらの
斜行溝５、６の深さは、図５に示すように、板状体１の
裏面から上記雄実部3a、3bの上面を越える深さであり、
従って、これらの雄実部3a、3bには上記多数条の斜行溝
５、６の端部が上下面に亘って貫通した切込溝部5a、6a
に形成されている。Further, as shown in FIG. 3, on the back surface of the plate-like body 1 shown in FIG. 1, oblique grooves 5 inclined to the right at a desired angle with respect to one side are mutually provided at small intervals. As shown in FIG. 4, they are engraved in parallel and on the back surface of the plate-shaped body 1 shown in FIG. The slanting grooves 6 which descend to the right are engraved in parallel with each other at small intervals, and these slanting grooves 5 and 6 are
Has a structure in which lattice-like grooves are formed. As shown in FIG. 5, the depths of the oblique grooves 5 and 6 are the depths from the back surface of the plate-shaped body 1 to the upper surfaces of the male portions 3a and 3b,
Therefore, in these male portions 3a and 3b, the cut groove portions 5a and 6a in which the ends of the above-mentioned multiple slanted groove portions 5 and 6 penetrate through the upper and lower surfaces are formed.
Is formed.

【００１５】図６、図７は図３、図４で示した裏面に格
子状溝を有する板状体１における雄実部3a、3bの変形例
を示すもので、これらの雄実部3a、3bに上記斜行溝５、
６の交差部７が存在する場合、この交差部７と雄実部3
a、3bの先端面間で形成される三角形状の板端部を斜行
溝５、６の端部の上記切込溝部5a、6aを介して欠落させ
て空気流通用縦細溝８を形成しているものである。その
他の構成は上記図３、図４で示した板状体１と同様であ
る。FIGS. 6 and 7 show modified examples of the male and female portions 3a and 3b in the plate-like body 1 having the lattice-like grooves on the back surface shown in FIGS. 3 and 4, and these male and female portions 3a and 3a are shown. 3b above the oblique groove 5,
If there is an intersection 7 of 6, this intersection 7 and the male part 3
A triangular plate end portion formed between the tip surfaces of a and 3b is cut off through the cut groove portions 5a and 6a at the end portions of the oblique grooves 5 and 6 to form a vertical narrow groove 8 for air circulation. Is what you are doing. Other configurations are the same as those of the plate-shaped body 1 shown in FIGS.

【００１６】なお、板状体１は、合板、ＬＶＬ、ＭＤ
Ｆ、パーティクルボードなどの木質繊維板、ロックウー
ル板や石膏板などの無機質板、或いはこれらの複合板等
からなり、例えば、上記図５においては、５プライの合
板の表面に化粧材11を設けてなる積層板が用いている。
化粧材11としては化粧単板やＷＰＣ、メラミン、ポリエ
ステル、ＰＶＣなどの化粧シートを貼着することによっ
て形成される。９は板状体１の裏面に斜行溝５、６を被
覆するようにして全面的に貼着している緩衝材である。
このような緩衝材９としては可撓性を有し且つ微細な凹
凸面に対する馴染み性を有する樹脂シート、紙、或いは
可撓性や馴染み性と共に防音性を有するゴム、発泡ウレ
タン、発泡ポリエチレン、発泡ゴム、不織布、織布等の
シートが使用される。The plate-shaped body 1 is made of plywood, LVL, MD.
F, a wood fiber board such as particle board, an inorganic board such as rock wool board or gypsum board, or a composite board of these, for example, in FIG. 5, a decorative material 11 is provided on the surface of plywood of 5 plies. Is used.
The decorative material 11 is formed by sticking a decorative veneer or a decorative sheet such as WPC, melamine, polyester, or PVC. Reference numeral 9 is a cushioning material which is attached to the entire back surface of the plate-shaped body 1 so as to cover the oblique grooves 5 and 6.
As such a cushioning material 9, a resin sheet or paper having flexibility and adaptability to a fine uneven surface, or rubber, foamed urethane, foamed polyethylene, or foam having soundproofness in addition to flexibility and compatibility. Sheets of rubber, non-woven fabric, woven fabric, etc. are used.

【００１７】このように構成された床板Ａは、図８に示
すように、床下地材Ｂ上に隣接する床板Ａの雄実部3a、
3bと雌実部4a、4bとを互いに嵌合させながら通常の施工
法によって敷設される。その際、床板Ａにはその板状体
１の裏面から雄実部3a、3bの上面を越える高さまで斜行
溝５、又は交差斜行溝５、６を刻設しているので、これ
らの斜行溝５、６によって可撓性を付与され、床下地材
Ｂとの馴染み性が良好となって床下地材Ｂに生じている
不陸等を吸収すると共に緩衝材９によって微細な凹凸面
を吸収し、歩行感が良好となる。As shown in FIG. 8, the floorboard A thus constructed has the male and solid portions 3a of the floorboard A adjacent to the floor base material B, as shown in FIG.
3b and female parts 4a, 4b are laid by a normal construction method while fitting each other. At that time, since the floor plate A is provided with the oblique groove 5 or the cross oblique grooves 5 and 6 from the rear surface of the plate-shaped body 1 to a height exceeding the upper surfaces of the male portions 3a and 3b, these Flexibility is imparted by the oblique grooves 5 and 6, the compatibility with the floor base material B is improved, and the unevenness or the like generated in the floor base material B is absorbed, and the cushioning material 9 provides a fine uneven surface. To be absorbed and the walking feeling will be improved.

【００１８】さらに、床板Ａ上に衝撃力が加わった場
合、床板Ａが瞬間的に床下地Ｂに対して圧縮変形し、床
下地Ｂと床板Ａ間に滞留しているが圧縮作用を受けて板
状体１の裏面に設けた斜行溝５、６から雄実部3a、3bに
上下面間に亘って貫通している該斜行溝５、６の端部の
切込溝部5a、6aと隣接する床板Ａ、Ａの接合部の隙間を
通じて室内に排出され、床下地側に伝達する衝撃力が緩
和される。この際、上記図６、図７で示したように、雄
実部3a、3bの先端部に空気流通用縦細溝８を設けておけ
ば、空気の排出が一層円滑に行わせることができる。Further, when an impact force is applied to the floor board A, the floor board A is momentarily compressed and deformed with respect to the floor base material B, and is retained between the floor base material B and the floor board A, but receives a compression action. Cut groove portions 5a, 6a at the ends of the oblique grooves 5, 6 penetrating from the oblique grooves 5, 6 provided on the back surface of the plate-shaped body 1 to the male solid portions 3a, 3b between the upper and lower surfaces. The impact force that is discharged into the room through the gap between the floor plates A and A that are adjacent to each other and is transmitted to the floor base side is mitigated. At this time, as shown in FIGS. 6 and 7, by providing the air-flowing vertical narrow grooves 8 at the tips of the male and female portions 3a and 3b, the air can be discharged more smoothly. .

【００１９】次に、このような床板Ａの製造方法につい
て簡単に説明すると、図９、図10に示すように、幅及び
長さが夫々90cm、180cm の大判サイズの矩形状板材A'の
裏面に図９においてはその一辺に対して所望の角度でも
って斜め右上がり方向に向かう斜行溝５を小間隔毎（40
mm〜50mm間隔毎) に互いに平行に刻設し、図10において
はさらにこの右上がり斜行溝５と交差する方向に傾斜し
た右下がり斜行溝６を右上がり斜行溝５と同一間隔ごと
に多数条、互いに平行に刻設したのち、矩形状板材A'の
裏面に該斜行溝５、６を被覆するようにして緩衝材９を
貼着し、しかるのち、この矩形状板材A'を幅方向に三等
分する二点鎖線で示す部分を切断Ｘして幅が30cm、長さ
が180cm の３枚の可撓性長尺の板状体１を得る。こうし
て得られた板状体１の四方端面の中央部に雄実部3a、3b
と雌実部4a、4bとを形成して床材Ａを得るものである。Next, the manufacturing method of the floor board A will be briefly described. As shown in FIGS. 9 and 10, the rear surface of a large rectangular plate material A'having a width and a length of 90 cm and 180 cm, respectively. In FIG. 9, the oblique groove 5 is slanted toward the right upward direction at a desired angle with respect to one side thereof at small intervals (40
mm to 50 mm intervals), and in FIG. 10, the right-descending oblique grooves 6 inclined in the direction intersecting with the upward-descending oblique grooves 5 are provided at the same intervals as the upward-sloping oblique grooves 5. After a plurality of lines are engraved in parallel with each other, a cushioning material 9 is attached to the back surface of the rectangular plate material A ′ so as to cover the oblique grooves 5 and 6, and then the rectangular plate material A ′ is formed. Is cut X at a portion indicated by a chain double-dashed line that divides it into three equal parts in the width direction to obtain three flexible elongated plate-like bodies 1 having a width of 30 cm and a length of 180 cm. The male parts 3a, 3b are provided at the center of the four end faces of the plate-shaped body 1 thus obtained.
And the female parts 4a and 4b are formed to obtain the flooring material A.

【００２０】なお、矩形状板材A'に上記のような斜行溝
５、６を刻設するには、図11に示すように矩形状板材A'
を刻設すべき斜行溝５、６の傾斜角度に応じて斜めに向
けた状態で回転軸21に一定間隔毎に円形切削刃22を装着
してなる切削装置に送り込むことによって、一方の斜行
溝５を刻設する。そして、該斜行溝５に交差する他方の
斜行溝６を刻設する場合には、斜行溝５を刻設したの
ち、該矩形状板材A'を上記と反対方向に傾斜させた状態
で切削装置に送り込めば形成することができる。なお、
これらの斜行溝５、６は、爾後の実加工時において、雄
実部3a、3bの下面から上面に亘ってその端部が貫通する
深さとなるように刻設される。矩形状板材A'の長辺に対
する斜行溝５、６の切り刻み角度は20〜70°好ましくは
30〜60°である。In order to engrave the above-mentioned oblique grooves 5 and 6 in the rectangular plate material A ', as shown in FIG. 11, the rectangular plate material A'is formed.
Is fed obliquely according to the inclination angles of the oblique grooves 5 and 6 to be engraved, and is fed to a cutting device in which circular cutting blades 22 are attached to the rotating shaft 21 at regular intervals so that one oblique The groove 5 is engraved. When the other oblique groove 6 that intersects the oblique groove 5 is engraved, the oblique groove 5 is engraved and then the rectangular plate material A ′ is inclined in the opposite direction to the above. It can be formed by sending it to the cutting device with. In addition,
These oblique grooves 5 and 6 are engraved so that the end portions thereof penetrate from the lower surface to the upper surface of the male solid portions 3a and 3b during the actual machining after the machining. The cut angle of the oblique grooves 5, 6 with respect to the long side of the rectangular plate material A'is 20 to 70 °, preferably
30 to 60 °.

【００２１】[0021]

【発明の効果】以上のように本発明の可撓性防音床板に
よれば、板状体の平行に対向する両端面に夫々雌雄実部
が設けられていると共に該板状体の裏面に一辺に対して
斜め方向に傾斜し、且つ上記雄実部の上面を越える深さ
に達する多数条の斜行溝が互いに平行に刻設され、直角
に連なる雄実部に上記多数条の斜行溝の端部を上下面間
に亘って貫通させた構造を有しているので、斜行溝は板
状体の裏面から雄実部の先端に亘って一連に形成されて
いるものであるから、加工が簡単で均質な精度のよい可
撓性床板を能率良く製造することが可能となり、さら
に、板状体の両端部側に設けられた斜行溝は板状体の長
短両辺間に亘って貫通していると共に板状体の中央部に
設けられた斜行溝は板状体の対向する長辺間に亘って貫
通し且つ斜行溝の端部は長短両辺側の雄実部の上下面間
に亘って貫通した深さを有しているので、床下地材上に
施工した該床板に衝撃力が作用した場合、床下地と床板
との間の空気を圧縮、流動させて斜行溝から雌雄実部の
接合面間の隙間を通じて外部に確実に流出させることが
でき、従って、床下地材側に伝達する衝撃力を緩和して
衝撃音の発生を抑制することができるものである。As described above, according to the flexible soundproof floor board of the present invention, the male and female parts are provided on both end surfaces of the plate-like body which face each other in parallel, and one side is provided on the back surface of the plate-like body. A large number of oblique grooves that are inclined in an oblique direction with respect to each other and reach a depth exceeding the upper surface of the male part are engraved in parallel with each other, and the multiple oblique grooves are formed in the male part that is continuous at a right angle. Since it has a structure in which the end portion of is penetrated between the upper and lower surfaces, the oblique groove is formed in a series from the back surface of the plate-shaped body to the tip of the male portion, It is possible to efficiently manufacture a flexible floorboard that is easy to process and uniform and that has high accuracy.Furthermore, the diagonal grooves provided on both end sides of the plate-shaped body extend across both long and short sides of the plate-shaped body. The oblique groove that penetrates and is provided in the central portion of the plate-shaped member penetrates between the opposite long sides of the plate-shaped member and the end of the oblique groove. Has a depth that penetrates between the upper and lower surfaces of the male and female parts on both the long and short sides, so if an impact force is applied to the floor board constructed on the floor base material, it will be between the floor base and the floor board. The air can be compressed and flowed to surely flow out from the oblique groove to the outside through the gap between the joint surfaces of the male and female real parts. Therefore, the impact force transmitted to the floor base material side can be mitigated to reduce the impact noise. The generation can be suppressed.

【００２２】又、上記斜行溝は板状体の一辺に対して傾
斜する方向に刻設されているので、板状体のどの部分を
幅方向或いは長さ方向に切断しても、その切断方向に斜
行溝が交差していると共に隣接する斜行溝間には板状体
の肉厚部分が存在する構造となり、この肉厚部分によっ
て幅方向及び長さ方向に対する曲げ強度が増大し、取扱
時等において折損する虞れはなく、しかも、斜行溝によ
って板状体が良好な可撓性を発揮し、床下地面の不陸等
に対する馴染み性が良くなるものである。Further, since the oblique groove is formed in the direction inclining with respect to one side of the plate-like body, no matter which part of the plate-like body is cut in the width direction or the length direction, the cutting is performed. The structure has a structure in which the oblique groove intersects in the direction and the thick part of the plate-shaped body exists between the adjacent oblique grooves, and this thick part increases the bending strength in the width direction and the length direction, There is no risk of breakage during handling and the like, and the plate-like body exhibits good flexibility due to the oblique groove, and the conformability to unevenness of the floor base surface is improved.

【００２３】さらに請求項２に記載したように、板状体
の裏面に斜行溝を互いに交差方向に設けて格子状溝とし
ておけば、この格子状溝によって板状体が全面的に均等
な可撓性、馴染み性を発揮すると共に格子状溝によって
囲まれた矩形状の板厚部分が適度の剛性を有して良好な
歩行感が得られるものである。その上、請求項３に記載
した発明のようには、雄実部に設けられた上記両斜行溝
の交差部と雄実部の端面間で形成される三角形状の板端
部を欠落させて空気流通用縦細溝に形成しておけば、上
述した衝撃時に圧縮される床下地材と床板間の空気を斜
行溝から該空気流通用縦細溝を通じて円滑に流出させる
ことができ、衝撃音の抑制効果が一層増大するものであ
る。また、請求項４に記載したように、板状体の裏面に
上記斜行溝を被覆した緩衝材を貼着しておくことによ
り、床下地材の微細な凹凸面に対する馴染み性が一層良
くなると共に衝撃力を吸収して階下への衝撃音の伝達を
防止することができ、しかも、歩行感が一層良くなるも
のである。Further, as described in claim 2, if oblique grooves are provided on the back surface of the plate-shaped member in a direction intersecting with each other so as to form a grid-shaped groove, the plate-shaped member is entirely uniform by the grid-shaped groove. In addition to exhibiting flexibility and familiarity, the rectangular plate-thickness portion surrounded by the grid-like grooves has appropriate rigidity, and a good walking feeling can be obtained. In addition, as in the invention described in claim 3, the triangular plate end formed between the end face of the male part and the intersection of the oblique grooves provided in the male part is omitted. If it is formed in the vertical groove for air circulation, it is possible to smoothly flow out the air between the floor base material and the floor plate, which is compressed at the time of impact, from the oblique groove through the vertical groove for air circulation, The effect of suppressing the impact noise is further increased. Further, as described in claim 4, by attaching the cushioning material covering the oblique groove to the back surface of the plate-like body, the conformability to the fine uneven surface of the floor base material is further improved. At the same time, the impact force can be absorbed to prevent the impact sound from being transmitted to the downstairs, and moreover, the walking feeling is further improved.

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

【図１】裏面に一方向に斜行溝を設けている可撓性防音
床板の簡略平面図、FIG. 1 is a simplified plan view of a flexible soundproof floor board having a diagonal groove on the back surface in one direction.

【図２】裏面に交差した斜行溝を設けている可撓性防音
床板の簡略平面図、FIG. 2 is a simplified plan view of a flexible soundproof floor board having diagonal grooves crossed on the back surface;

【図３】裏面に一方向に斜行溝を設けている可撓性防音
床板の底面図、FIG. 3 is a bottom view of a flexible soundproof floor board having a diagonal groove on the back surface in one direction,

【図４】裏面に交差した斜行溝を設けている可撓性防音
床板の底面図、FIG. 4 is a bottom view of a flexible soundproof floor board having diagonal grooves formed on the back surface,

【図５】可撓性防音床板の一部拡大縦断面図、FIG. 5 is a partially enlarged vertical sectional view of a flexible soundproof floorboard,

【図６】雄実部に空気流通用縦細溝を形成した可撓性防
音床板の平面図、FIG. 6 is a plan view of a flexible soundproof floor board in which vertical grooves for air circulation are formed in the male part.

【図７】その一部拡大底面図、FIG. 7 is a partially enlarged bottom view of FIG.

【図８】床下地材に敷設した可撓性防音床板の簡略断面
図、FIG. 8 is a simplified sectional view of a flexible soundproof floor board laid on a floor base material,

【図９】裏面に一方向のみの斜行溝を設けた矩形状板材
の裏面図、FIG. 9 is a back view of a rectangular plate member having a back surface provided with oblique grooves in only one direction,

【図１０】裏面に互いに交差する方向に斜行溝を設けた
矩形状板材の裏面図、FIG. 10 is a rear view of a rectangular plate member having diagonal grooves formed on the back surface in directions intersecting with each other;

【図１１】斜行溝を加工する方法を示す簡略平面図。FIG. 11 is a simplified plan view showing a method of processing a skew groove.

【符号の説明】[Explanation of symbols]

１ 板状体 ２ 化粧塗層 3a、3b 雄実部 ５、６ 斜行溝 5a、6a 切込溝部 ７ 交差部 ８ 空気流通用縦細溝 DESCRIPTION OF SYMBOLS 1 Plate-like body 2 Decorative coating layers 3a, 3b Male part 5, 6 Oblique groove 5a, 6a Cut groove part 7 Intersection part 8 Vertical groove for air circulation

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 板状体の平行に対向する両端面に夫々雌
雄実部が設けられていると共に該板状体の裏面に一辺に
対して斜め方向に傾斜し、且つ上記雄実部の上面を越え
る深さに達する多数条の斜行溝が互いに平行に刻設さ
れ、直角に連なる雄実部に上記多数条の斜行溝の端部を
上下面間に亘って貫通させていることを特徴とする可撓
性防音床板。1. A male and female section is provided on both end surfaces of a plate-like body that face each other in parallel, and a rear surface of the plate-like body is inclined in an oblique direction with respect to one side and an upper surface of the male section. A large number of oblique grooves that reach a depth exceeding the above are engraved in parallel with each other, and the end of the oblique grooves of the above-mentioned multiple threads penetrates the upper and lower surfaces of the male part that is continuous at a right angle. A characteristic flexible soundproof floorboard. 【請求項２】 板状体の裏面に上記斜行溝と交差し、且
つこの斜行溝と同一深さを有する多数条の斜行溝が刻設
されてこれらの斜行溝により格子状溝を形成しているこ
とを特徴とする請求項１記載の可撓性防音床板。2. A large number of oblique grooves intersecting with the oblique grooves and having the same depth as the oblique grooves are formed on the back surface of the plate-like body, and the oblique grooves form a grid-like groove. The flexible soundproof floorboard according to claim 1, wherein the flexible soundproof floorboard is formed. 【請求項３】 雄実部に設けられた上記両斜行溝の交差
部と雄実部の端面間で形成される三角形状の板端部を欠
落させて空気流通用縦細溝に形成していることを特徴と
する請求項２記載の可撓性防音床板。3. A vertical narrow groove for air circulation is formed by omitting a triangular plate end portion formed between an end portion of the male portion and an intersection portion of the oblique grooves provided in the male portion. The flexible soundproof floor board according to claim 2, wherein 【請求項４】 板状体の裏面に上記斜行溝を被覆した緩
衝材を貼着していることを特徴とする請求項１、請求項
２又は請求項３記載の可撓性防音床板。4. The flexible soundproof floor board according to claim 1, wherein a cushioning material covering the oblique groove is attached to the back surface of the plate-shaped body.