JP2000073544A - Floor board material for free access floor - Google Patents
Floor board material for free access floorInfo
- Publication number
- JP2000073544A JP2000073544A JP10242814A JP24281498A JP2000073544A JP 2000073544 A JP2000073544 A JP 2000073544A JP 10242814 A JP10242814 A JP 10242814A JP 24281498 A JP24281498 A JP 24281498A JP 2000073544 A JP2000073544 A JP 2000073544A
- Authority
- JP
- Japan
- Prior art keywords
- board
- board material
- width
- floor
- thickness
- 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.)
- Granted
Links
Landscapes
- Floor Finish (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、木質材で構成され
たフリーアクセスフロアの床面を形成する盤状材に関
し、その上面に荷載される荷重の大きさに充分耐えるこ
とが出来ることは勿論、施工にあたっては軽量で加工が
容易であり作業を容易にし、施工能率を高め、また施工
された室内は断熱・吸音・吸脱湿・軟接触感等住環境の
改善効果が高く、技術的・生活環境的・経済的に事務所
建造物の効率化に大きく寄与する材料を提供するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk-shaped material for forming a floor surface of a free access floor made of a wooden material and, of course, can sufficiently withstand a load applied to the upper surface thereof. In the construction, it is lightweight and easy to process, making the work easy and improving the construction efficiency. In addition, the installed room has a high effect of improving the living environment such as heat insulation, sound absorption, moisture absorption and dehumidification, soft contact feeling, etc. It provides materials that greatly contribute to improving the efficiency of office buildings in terms of living environment and economy.
【0002】[0002]
【従来技術】最近、高度情報化社会を迎えて事務所建造
物にはコンピューターとそれに付随する様々な端末機な
どが普及しオフィスのOA化が一段と進んでいる。この
結果、床はそれらの配線で混乱し居住性や事務効率を低
下させている。この問題を解決するために二重床つまり
フリーアクセスフロアが普及し始めている。2. Description of the Related Art Recently, with the advent of a highly information-oriented society, computers and various terminals associated therewith have become widespread in office buildings, and office automation (OA) has been further advanced. As a result, the floors are confused by those wirings, reducing the livability and office efficiency. To solve this problem, double floors or free access floors have begun to spread.
【0003】このフリーアクセスフロアはその本来の目
的である沢山の情報機器を結ぶ配線の付設が容易である
ように、床下空間を造る構造として一辺が50cm乃至
60cmの正方形の床板盤材に4本の脚が取付けられた
碁盤状の個々の台床を事務室の全床面に敷並べて形成さ
れる。[0003] This free access floor has a structure for creating an underfloor space in which four wires are provided on a square floorboard having a side of 50 cm to 60 cm so that wiring for connecting a lot of information equipment, which is its original purpose, is easy. It is formed by laying out individual board-like pedestals to which the legs are attached on the entire floor of the office.
【0004】従って、床にかかる荷重は床板盤材一枚ご
とにその4本の脚の取付け部でのみ支えられている構造
となっている。しかもその荷重は事務所内に設置される
コンピューターは勿論、種々の事務用什器書類ならびに
そこに従事する人々の重量を支え、それらの移動時の荷
重に耐える剛性が必要である。Accordingly, the load applied to the floor is supported only by the mounting portions of the four legs for each floorboard material. In addition, the load must support computers installed in the office, as well as various office furniture documents and the weight of the people engaged in the office furniture, and have to be rigid enough to withstand the load when moving.
【0005】(財)機械電子検査協会が定めるフリーア
クセスフロア用パネル検査規格によれば、この一枚にか
かる荷重を想定して軽量型の場合で検査時に加える荷重
を300kg、破壊時の荷重が900kg以上と定めら
れている。それ故現在使用されているフリーアクセスフ
ロアはこの荷重に耐える剛性を得やすいアルミダイカス
トやスチール、鉄板とコンクリートの複合材などの材質
の製品が一般的である。According to the panel inspection standard for free access floors determined by the Japan Society of Mechanical and Electronic Inspection, a load to be applied at the time of inspection is 300 kg and a load at the time of destruction is small in the case of a lightweight type, assuming the load applied to one sheet. It is set at 900 kg or more. Therefore, currently used free access floors are generally made of a material such as aluminum die-cast, steel, or a composite material of iron plate and concrete, which easily obtains rigidity to withstand this load.
【0006】しかしながら、これらのフリーアクセスフ
ロアは規定の荷重に耐える剛性は満足出来るが重量が重
く、施工時の単位寸法未満の部分のおさまり工事が容易
でなく、室内の居住性も良好とは言えない。[0006] However, these free access floors can satisfy the rigidity to withstand the specified load, but are heavy, and it is not easy to settle down a portion smaller than the unit size at the time of construction, and it can be said that the indoor comfort is good. Absent.
【0007】[0007]
【発明が解決しようとする課題】本発明は建造物にフリ
ーアクセスフロアを施工するにあたって、その床板盤材
を挽き板材で構成することで、単位台床の重量を軽量化
し、施工現場への搬入、施工作業の取扱いを容易にする
と同時に、建造物の重量を軽量化すること、及び熱伝導
率の大きい金属材料や無機質材料の人間生理的に不適切
な床材料を使用しないで目的基準を満足できるフリーア
クセスフロアを構成することを目的とする。SUMMARY OF THE INVENTION The present invention reduces the weight of a unit floor by constructing a free access floor on a building by using a ground plate for the floor board, and carries the floor to a construction site. Simplifies the handling of construction work, and at the same time reduces the weight of the building, and satisfies the objective standards without using human physiologically unsuitable floor materials such as metallic materials and inorganic materials with high thermal conductivity. The purpose is to configure a free access floor that can be used.
【0008】[0008]
【課題を解決するための手段】本発明はこれらの目的を
解決するために、天然材料で人に優しく、住環境を円や
かにする効果を持ち、その上、重量当たりの曲げ剛性
「比曲げ強度」があらゆる材料中最も高い即ち軽くて強
い挽き板材を床板盤材に採用する。SUMMARY OF THE INVENTION In order to solve these objects, the present invention has a natural material-friendly effect of making the living environment round, and also has a flexural rigidity per weight "ratio". The bending strength is the highest among all materials, that is, the light and strong ground plate is used for the floorboard.
【0009】しかしながら木材板は繊維方向の曲げ剛性
が大きいが、それに直交する板目柾目方向の曲げ剛性は
そのおよそ20分の1或いは10分の1程度と小さいか
ら、4本の脚による4点支持で中央集中の300kgの
荷重がかけられた場合弱い方向の板目柾目側の支持点間
が大きくたわみまた破壊することとなるが、本発明の基
準によって板状及び棒状に挽き出された木材を本発明の
方法に従って接着再構成することでこの欠点を補い、一
般にはフリーアクセスフロアの床板盤材としては使用困
難であったり、不利になる材料として殆ど使用されてい
ない挽き板材をフリーアクセスフロア床板盤材とする。However, the wood board has a large bending stiffness in the fiber direction, but the bending stiffness in the direction perpendicular to the wood grain is as small as about one twentieth or one tenth thereof. When a centralized load of 300 kg is applied in support, the gap between the support points on the side of the straight grain and the straight grain in the weak direction greatly bends and breaks, but the wood cut into a plate shape and a rod shape according to the standards of the present invention. This disadvantage is compensated for by the adhesive reconstitution according to the method of the present invention. In general, a sawn board which is hardly used as a floorboard for a free access floor or hardly used as a disadvantageous material is used as a free access floor. Floor board material.
【0010】この発明は、床板盤材の盤面内の繊維方向
と直交方向即ち板目柾目面の幅方向に小幅板状乃至棒状
の挽き材を幅方向に接着して盤材を構成し、この盤材を
繊維方向を同一にして上下両面とし、この両面盤材の間
にこれらと繊維方向が直交するように幅方向に接着した
盤材を構成して接着剤で一体化して再構成した床板盤材
とする。According to the present invention, a board material is formed by bonding a small-width plate-like or bar-like sawing material in the width direction in a direction orthogonal to the fiber direction in the board surface of the floor board material, that is, in the width direction of the grain surface. Floorboards with the same fiber direction as the upper and lower surfaces, and between these double-sided disks, a flooring material that is bonded in the width direction so that the fiber direction is orthogonal to these is formed and integrated with the adhesive to reconfigure the floorboard Board material.
【0011】まず、木材の盤材を作成するにはフリーア
クセスフロアの幅方向は少なくとも500mmはあるも
のが多いので、一枚板を当てることは資源状価格状可能
でない。当然ある幅を持った板状の木材を幅方向に並べ
ることになるが、この時一般には採材出来た板幅の木材
を出来上がり寸法に並べるが、本発明ではそれを任意の
幅構成に任せるのではなく、フリーアクセスフロア盤材
としての剛性を高めるために幅をある定められた範囲の
寸法とした小幅板或いは棒状挽き材を幅方向に接着す
る。First, since the width direction of the free access floor is often at least 500 mm in the case of preparing a wood board, it is not possible to apply a single board in the form of a resource. Naturally, plate-shaped lumber with a certain width will be lined up in the width direction. At this time, in general, lumber of the width of the board that has been sampled is lined up to the finished size, but in the present invention it is left to any width configuration Instead, in order to increase the rigidity of the free access floor board material, a small width plate or bar-shaped sawing material having a width within a predetermined range is bonded in the width direction.
【0012】発明者は比重0.64のパラゴム材厚み2
0mmの小幅板の幅を10mm、15mm、20mm、
25mm、30mmとして幅方向に接着した盤材を作成
し、この盤材の曲げ強さと曲げヤング率を測定して次の
知見(図1参照)を得た。即ち曲げ強さは小幅板の幅が
10mmから30mmまで広くなるに従って855kg
/cm2、825kg/cm2、820kg/cm2、8
10kg/cm2、765kg/cm2と低下し、その低
下傾向は小幅板の幅に反比例する。また曲げヤング率は
10mm幅が87.8×103kg/cm2、15mm幅
では79.6×103kg/cm2、20mm幅で74.
5×103kg/cm2、25mm幅になると74.5×
103kg/cm2、30mm幅でも73.4×103k
g/cm2となり、幅方向に接着接合する小幅板の幅が
10mmから20mmまでは急激に、その後30mmま
では緩やかに幅の広くなるに従い曲げヤング率が低下
し、それ以上の広幅では殆ど小幅板の幅が影響しないこ
とを知った。The inventor has determined that the thickness of para rubber material having a specific gravity of 0.64 is 2
The width of the narrow plate of 0 mm is 10 mm, 15 mm, 20 mm,
A board material having a width of 25 mm and 30 mm and bonded in the width direction was prepared, and the bending strength and the bending Young's modulus of the board material were measured to obtain the following findings (see FIG. 1). That is, the bending strength is 855 kg as the width of the narrow plate increases from 10 mm to 30 mm.
/ Cm 2 , 825 kg / cm 2 , 820 kg / cm 2 , 8
Decreased to 10kg / cm 2, 765kg / cm 2, its decline is inversely proportional to the width of the narrow plate. The bending Young's modulus was 87.8 × 10 3 kg / cm 2 for a 10 mm width, 79.6 × 10 3 kg / cm 2 for a 15 mm width, and 74.0 × 10 3 kg / cm 2 for a 20 mm width.
5 × 10 3 kg / cm 2 , 74.5 ×
10 3 kg / cm 2 , even at 30 mm width, 73.4 × 10 3 k
g / cm 2 , the bending Young's modulus decreases as the width of the small width plate to be bonded and bonded in the width direction increases sharply from 10 mm to 20 mm, and then gradually increases up to 30 mm. I learned that the width of the board had no effect.
【0013】この知見を基礎としてフリーアクセスフロ
アの床板盤材の盤材では、幅方向に接着する小幅板の幅
を30mm以上とすると曲げヤング率を向上出来ないか
ら30mm以下の幅がよく、一方10mm以下では性能
増加の割合には製造コストが急激に増大し過ぎることか
ら10mm以上が有効である。On the basis of this finding, in the case of floor boards for free access floors, if the width of the small width board to be bonded in the width direction is 30 mm or more, the bending Young's modulus cannot be improved. If the thickness is 10 mm or less, the production cost increases too rapidly for the rate of performance increase, so that 10 mm or more is effective.
【0014】さらにまた、繊維方向が同一な上下両表面
の盤材の厚みとこれと繊維方向を直交する内層の盤材の
厚みの構成をフリーアクセスフロアの4本の脚で支えら
れた時どの方向にも同様な剛性を与えるように構成させ
るのである。発明者による実験研究によると、(64c
m)2のパラゴム材を使用した場合による3層構造のフ
リーアクセスフロア床板盤材では、表面盤材の繊維方向
と直交する内層の盤材の厚みの床板盤材の全厚みに占め
る構成比率が70%から90%、このましくは75%か
ら85%であるものがよいこと(図2参照)を知ること
が出来た。Further, the thickness of the board material on both upper and lower surfaces having the same fiber direction and the thickness of the inner layer board material orthogonal to the fiber direction are determined by the four legs of the free access floor. The direction is configured to give the same rigidity. According to experimental studies by the inventor, (64c
The raised floor floor panel member having a three-layer structure with the case of using m) 2 of Paragomu material, the proportions of the total thickness of the floor panel material of the inner layer of the board material thickness perpendicular to the fiber direction of the surface plate member It was found that 70% to 90%, and preferably 75% to 85%, is better (see FIG. 2).
【0015】従って、フリーアクセスフロア床板盤材の
構成は上下の両表面盤材の合計厚みが30%から10%
となり表面盤材1枚の厚みは全体厚みの15%から5%
となるが、このましくは12%から7%であり、その表
面盤材に繊維方向が直交するように配置される内層盤材
の厚みが占める比率が70%から90%、このましくは
75%から85%である3層構成の接着積層材で、構成
されているそれぞれの表面盤材及び内層盤材は夫々の構
成厚みを持った幅が10mmから30mmまでの小幅板
(或いは棒)を接着剤で相互に側面を接着接合した幅は
ぎ材から造られる。[0015] Therefore, the structure of the free access floor board is such that the total thickness of the upper and lower surface board is 30% to 10%.
And the thickness of one surface board is 15% to 5% of the total thickness
Preferably, the ratio is 12% to 7%, and the ratio of the thickness of the inner layer board material arranged so that the fiber direction is orthogonal to the surface board material is 70% to 90%, preferably Each of the surface board material and the inner layer board material is a small width plate (or bar) having a width of 10 mm to 30 mm with a thickness of 75 mm to 85%. Are made of a width-separated material in which the sides are bonded to each other with an adhesive.
【0016】このように構成されたフリーアクセスフロ
ア床板盤材は表面盤材の繊維方向と同一方向、直角方向
の両方向にほぼ同一な曲げ剛性を持っていて、しかも同
一樹種の木材を使った同じ厚みのどのような構成の盤材
よりも4点支持での荷重に最も強い抵抗力を示す。The thus constructed free access floor slab has substantially the same bending stiffness in both the same direction as the fiber direction of the surface slab and in the direction perpendicular to the fiber direction of the surface slab. It shows the strongest resistance to the load at the four-point support than the board material of any thickness.
【0017】本発明の構成によれば、同一樹種同一厚み
では最も強い碁盤状4点支持フリーアクセスフロア床板
盤材を与えるが、全体厚みが要求される過重負担とたわ
み限度を満足しない場合には、積層盤材を構成する小幅
板(或いは棒)の一部分に替えて、使用している樹種よ
りも曲げ剛性の強い小幅板状或いは棒状の挽き材を適宜
配置して接着接合すると、置き換え数に応じて剛性を向
上することが出来る。According to the structure of the present invention, the same type of tree and the same thickness provide the strongest four-point support free-access floor slab board material of the same type, but if the overall thickness does not satisfy the required overburden and deflection limit, In place of a part of the narrow plate (or bar) that constitutes the laminated board material, a small-width plate or bar-like sawing material having a higher bending rigidity than the tree species used is appropriately arranged and bonded and joined. The rigidity can be improved accordingly.
【0018】曲げ剛性が満足出来ない場合に、小幅板に
他樹種の併用をして同じ厚みながら積層する盤材の剛性
を向上して対応する前述の構成のほか、積層盤材の幅は
ぎ小幅板の幅を10mmから30mmまでに制限して幅
はぎ接着層の接着剤硬化層の剛性改良効果を利用したと
同じように、3層の盤材を互いに積層する積層接着の接
着層を強固にして厚み方向で接着層による強化効果を上
げることが出来る。In the case where the bending rigidity is not satisfactory, in addition to the above-described structure in which a narrow board is used in combination with another tree species to improve the rigidity of the board to be laminated while having the same thickness, the width of the laminated board is small. The width of the board is limited to 10 mm to 30 mm, and in the same way as the effect of improving the rigidity of the adhesive cured layer of the width adhesive layer is used, the adhesive layer of the laminated adhesive for laminating three layers of board material is strengthened. Thus, the reinforcing effect by the adhesive layer can be enhanced in the thickness direction.
【0019】この場合、フリーアクセスフロア床板盤材
は3層構造を成しているので接着層は2層存在する。そ
こで2層の接着層中に接着剤高分子化合物よりも剛性の
強い材料を包含、埋め込む、挟み込んで接着層強化を行
うと床板盤材の剛性を高められることを発見した。In this case, since the free access floor slab has a three-layer structure, there are two adhesive layers. Therefore, it has been found that the rigidity of the floorboard material can be increased by strengthening the adhesive layer by including, embedding, or sandwiching a material having higher rigidity than the adhesive polymer compound in the two adhesive layers.
【0020】接着層中に包含させる材料として、グラス
ウール、カーボンファイバー、金属フィラメント、パル
プ、繊維などの一つ或いは複数が、繊維状を成したま
ま、それらがマット状に成っているもの、またシート
状、布状等に成型されているもの等のほか、10分の1
mm以下の厚みの金属箔、金網等がある。接着剤にそれ
ら強化材料と木材の双方に接着可能なものを選べば、そ
れら強化材料は容易に複合化して強固なマトリックス層
となり、床板盤材の剛性を向上増加させることが出来
る。As a material to be included in the adhesive layer, one or more of glass wool, carbon fiber, metal filament, pulp, fiber, and the like are formed in a fibrous state while forming a fibrous state, or a sheet. Shape, cloth shape, etc., as well as 1/10
There is a metal foil, a wire net or the like having a thickness of not more than mm. If an adhesive is selected that can be bonded to both the reinforcing material and the wood, the reinforcing material can be easily compounded into a strong matrix layer, and the rigidity of the floorboard can be improved and increased.
【0021】厚み方向の剛性向上に3層構造に挟まれる
2層の接着層を強化することが効果を表していることか
ら、表面盤材に接着剤層をより沢山含んでいる合板或い
は単板積層板を採用すると、同一厚みの挽き板材に比べ
て接着剤層の強化効果を利用出来るので、これらを使用
することは有効である。また、このフリーアクセスフロ
ア床板盤材は表面に難燃性の塗料や電磁波シールド性を
持つ塗料など各種の機能性を備えた塗料によるコーティ
ング層を施すようにしても良い。Since the effect of strengthening the two adhesive layers sandwiched by the three-layer structure for improving the rigidity in the thickness direction is effective, a plywood or a veneer having a surface board material containing more adhesive layers is effective. When a laminated board is employed, the effect of strengthening the adhesive layer can be utilized as compared with a sawn board having the same thickness. Therefore, the use of these is effective. In addition, this free access floor board may be provided with a coating layer having various functionalities such as a flame-retardant paint or a paint having an electromagnetic wave shielding property on its surface.
【0022】[0022]
【実施例】実施例1 パラゴム乾燥材を使い、表面盤材の小幅挽き板の幅がと
もに15mmで厚みを4mmと5mmとし、従い内層盤
材の厚みがそれぞれ24mmと22mmとして構成積層
接着された54cm角のフリーアクセスフロアの床板盤
材を製造し、4点支持各スパン450mmで中央集中荷
重340kgを負荷させた時の最大たわみ量と見かけの
曲げヤング率を測定した。内層盤材の全厚みに対する比
率が前者は75%であり、後者は68%である。Example 1 Using para rubber dried material, the width of the narrow sawing board of the surface board material was 15 mm, the thickness was 4 mm and 5 mm, and the thickness of the inner board material was 24 mm and 22 mm, respectively. A floor panel board of a 54 cm square free access floor was manufactured, and the maximum amount of deflection and the apparent bending Young's modulus when a centralized load of 340 kg was applied at 450 mm each span supported by four points were measured. The ratio of the inner layer material to the total thickness is 75% in the former case and 68% in the latter case.
【0023】この結果は前者の最大たわみ量は0.18
0mmであり、ヤング率は42.0×103kg/cm2
であり、満足する剛性を示している。一方後者はそれぞ
れ0.199mm、38.0×103kg/cm2であり
内層盤材の厚みが薄くなり、全厚みに対する比率が本発
明の範囲以外であるので表面盤材の繊維方向に対して縦
横のバランスがとれていないので弱い方向の強さが優先
してたわみ量を大きくしていることが確認できた。This result shows that the maximum deflection of the former is 0.18.
0 mm and the Young's modulus is 42.0 × 10 3 kg / cm 2
, Indicating satisfactory rigidity. On the other hand, the latter are 0.199 mm and 38.0 × 10 3 kg / cm 2 , respectively, and the thickness of the inner layer board material is thin, and the ratio to the total thickness is out of the range of the present invention. Since the vertical and horizontal balance was not maintained, it was confirmed that the strength in the weak direction was prioritized and the amount of deflection was increased.
【0024】実施例2 表面盤材と内層盤材の厚みはともに2.5mmと20m
mで床板盤材の全厚みも25mmと同一であり、小幅挽
き板の各幅も15mmと同じであるが、図4に示すよう
にパラゴム材より強度の高いダマールラウト材の小幅挽
き板を内層盤材の一部に置き換えて接着構成したものと
比較した。Example 2 The thicknesses of the surface board material and the inner layer board material are both 2.5 mm and 20 m.
m, the total thickness of the floorboard material is the same as 25 mm, and each width of the narrow sawing plate is the same as 15 mm, but as shown in FIG. It was compared with a part that was replaced with a part of the board material and bonded.
【0025】 最大たわみ 曲げヤング率 パラゴム材のみ 3.38mm 41.4×103kg/cm2 ダマールラウト材置換 3.08mm 45.4×103kg/cm2 Maximum deflection Bending Young's modulus Para rubber material only 3.38 mm 41.4 × 10 3 kg / cm 2 Damarrout material replacement 3.08 mm 45.4 × 10 3 kg / cm 2
【0026】測定値からも、内層盤材の小幅挽き板の一
部をパラゴム材から強度の強いダマールラウト材に置換
すると、床板盤材のたわみ量が減少し、曲げヤング率も
改善されることが立証されて発明の効果が発揮されてい
る。From the measured values, it can be seen that, when a part of the narrow-grained board of the inner layer board is replaced with a high-strength damar-laut material from para rubber, the amount of deflection of the floor board is reduced and the bending Young's modulus is also improved. Has been proved, and the effect of the invention is exhibited.
【0027】実施例3 小幅挽き板の幅、厚み方向の構成比率、全体厚み、樹種
すべて同一な床板盤材の2つの接着層を一方は通常接着
剤のみで接着し、他方の一つの厚み0.05mmのアル
ミ箔を包埋させて接着層を強化した。Example 3 Two adhesive layers of a floorboard material having the same width, thickness direction composition ratio, total thickness, and tree type of a narrow sawing board are all bonded with one ordinary adhesive only, and the other one has a thickness of 0. The adhesive layer was reinforced by embedding a 0.05 mm aluminum foil.
【0028】 最大たわみ 曲げヤング率 通常接着 0.308mm 40.8×103kg/cm2 アルミ箔 0.239mm 49.1×103kg/cm2 Maximum deflection Flexural Young's modulus Normal adhesion 0.308 mm 40.8 × 10 3 kg / cm 2 Aluminum foil 0.239 mm 49.1 × 10 3 kg / cm 2
【0029】測定結果は、接着剤層を強化すると接着接
合構成した床板盤材の剛性が改善されて、それぞれ通常
接着剤で構成されたものより、接着剤層を強化したもの
の最大たわみは減少し、曲げヤング率を改善して発明の
効果を立証していることが分かる。The measurement results show that when the adhesive layer is reinforced, the stiffness of the floor panel material formed by adhesive bonding is improved, and the maximum deflection of the reinforced adhesive layer is reduced as compared with the case of the ordinary adhesive. It can be seen that the effect of the present invention was proved by improving the bending Young's modulus.
【0030】実施例4 厚み方向の接着剤層強化効果を確認するために、全厚み
が32mmで内層盤材は同じパラゴム乾燥材22mm厚
さ小幅挽き材幅30mmを用い表面盤材がパラゴム材小
幅挽き材幅30mmの5mmのものと、5mm厚ラワン
合板のものを比較した。いずれも厚み構成比では本発明
の範囲を越えたものであるが、表面盤材の効果を比較す
るには問題がない。Example 4 In order to confirm the effect of strengthening the adhesive layer in the thickness direction, the whole thickness was 32 mm, the inner layer material was the same para rubber dry material, the thickness was 22 mm, the narrow width was 30 mm, and the surface material was the para rubber material. A 5 mm thing with a sawn material width of 30 mm and a 5 mm thick Rawan plywood were compared. In any case, the thickness composition ratios are beyond the range of the present invention, but there is no problem in comparing the effects of the surface materials.
【0031】 最大たわみ 曲げヤング率 パラゴム通常盤材 0.199mm 38.0×103kg/cm2 ラワン合板 0.192mm 39.4×103kg/cm2 Maximum deflection Bending Young's modulus Para rubber regular board material 0.199 mm 38.0 × 10 3 kg / cm 2 Lauan plywood 0.192 mm 39.4 × 10 3 kg / cm 2
【0032】結果は、表面盤材として樹種ではパラゴム
と比較してむしろ弱い樹種であるラワン材であるにも拘
らず合板化して接着剤層を多く持ったラワン合板を用い
た方が僅かであるがたわみ量は少なくなり、曲げヤング
率も大きくなって本発明を立証している。As a result, the use of a Lauan plywood having a plywood and a large amount of an adhesive layer as a surface wood material is slightly smaller in spite of the fact that it is a Lauan wood which is a rather weak tree species as compared with para rubber. The amount of deflection is reduced, and the bending Young's modulus is increased, which proves the present invention.
【図1】本発明の一実施例に係る盤材の小幅挽き板の幅
と剛性との関係を示す表。FIG. 1 is a table showing the relationship between the width of a narrow sawing board of a board material and rigidity according to one embodiment of the present invention.
【図2】本発明の一実施例に係る床板盤材において、そ
の全厚みに対し、剛性がほぼ等しくなるような内層盤材
の構成比率を示す表。FIG. 2 is a table showing a composition ratio of an inner layer board material having substantially the same rigidity with respect to the entire thickness of the floor board material according to one embodiment of the present invention.
【図3】本発明の一実施例に係る床板盤材の構造を示す
説明図。FIG. 3 is an explanatory view showing the structure of a floorboard according to an embodiment of the present invention.
【図4】本発明の他の実施例に係る床板盤材の一部を拡
大した説明図。FIG. 4 is an explanatory view in which a part of a floorboard according to another embodiment of the present invention is enlarged.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成11年8月16日(1999.8.1
6)[Submission date] August 16, 1999 (1999.8.1
6)
【手続補正1】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】フリーアクセスフロアの床板盤材[Title of the Invention] Floorboard material for free access floor
【特許請求の範囲】[Claims]
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、木質材で構成され
たフリーアクセスフロアの床面を形成する盤状材に関
し、一層詳しくは、従来、殆ど利用されることのなかっ
たゴムの木を所定の基準に基づいて床板盤材に適用する
ことにより、その上面に荷載される荷重の大きさに充分
耐えることが出来ることは勿論、施工にあたっては軽量
で加工が容易であり作業を容易にし、施工能率を高め、
また施工された室内は断熱・吸音・吸脱湿・軟接触感等
住環境の改善効果が高く、技術的・生活環境的・経済的
に事務所建造物の効率化に大きく寄与する材料を提供す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board-like material for forming a floor surface of a free access floor made of a wood material, and more particularly, to a method for removing a rubber tree which has hardly been used in the past. By applying to the floorboard material based on the standards of above, not only can it sufficiently withstand the magnitude of the load loaded on the upper surface, but also it is lightweight, easy to process and easy to work, Increase efficiency,
In addition, the installed room has a high effect of improving the living environment such as heat insulation, sound absorption, moisture absorption and dehumidification, soft contact feeling, and provides materials that greatly contribute to the efficiency of office buildings technically, living environment and economically. Is what you do.
【0002】[0002]
【従来技術】最近、高度情報化社会を迎えて事務所建造
物には、コンピューターとそれに付随する様々な端末機
などが普及しオフィスのOA化が一段と進んでいる。こ
の結果、床はそれらの配線で混乱し居住性や事務効率を
低下させている。この問題を解決するために二重床つま
りフリーアクセスフロアが普及し始めている。2. Description of the Related Art In recent years, with the advent of a highly information-oriented society, computers and various terminals associated therewith have become widespread in office buildings, and office automation (OA) has been further advanced. As a result, the floors are confused by those wirings, reducing the livability and office efficiency. To solve this problem, double floors or free access floors have begun to spread.
【0003】このフリーアクセスフロアは、その本来の
目的である沢山の情報機器を結ぶ配線の付設が容易であ
るように、床下空間を造る構造として一辺が50cm乃
至60cmの正方形の床板盤材に4本の脚が取付けられ
た碁盤状の個々の台床を事務室の全床面に敷並べて形成
される。This free access floor has a square floorboard with a side of 50 cm to 60 cm as a structure for forming an underfloor space so that wiring for connecting a lot of information equipment, which is its original purpose, is easy. It is formed by laying out a board-shaped individual platform with the legs of the book attached on the entire floor of the office.
【0004】従って、床にかかる荷重は、床板盤材一枚
ごとにその4本の脚の取付け部でのみ支えられている構
造となっている。しかもその荷重は事務所内に設置され
るコンピューターは勿論、種々の事務用什器書類ならび
にそこに従事する人々の重量を支え、それらの移動時の
荷重に耐える剛性が必要である。Accordingly, the load applied to the floor is supported only by the mounting portions of the four legs for each floorboard material. In addition, the load must support computers installed in the office, as well as various office furniture documents and the weight of the people engaged in the office furniture, and have to be rigid enough to withstand the load when moving.
【0005】(財)機械電子検査協会が定めるフリーア
クセスフロア用パネル検査規格によれば、この一枚にか
かる荷重を想定して軽量型の場合で検査時に加える荷重
が300kg、破壊時の荷重が900kg以上と定めら
れている。それ故、現在使用されているフリーアクセス
フロアは、この荷重に耐える剛性を得やすいアルミダイ
カストやスチール、鉄板とコンクリートの複合材などの
材質の製品が一般的である。According to the panel inspection standard for free access floors determined by the Japan Society of Mechanical and Electronic Inspection, the load to be applied at the time of inspection is 300 kg and the load at the time of breakage is 300 kg in the case of a lightweight type, assuming the load applied to one sheet. It is set at 900 kg or more. Therefore, the currently used free access floors are generally made of a material such as aluminum die-cast, steel, or a composite material of iron plate and concrete, which easily obtains rigidity to withstand this load.
【0006】しかしながら、これらのフリーアクセスフ
ロアは、規定荷重に耐える剛性は満足出来るが重量が重
く、施工時の単位寸法未満部分のおさまり工事が容易で
なく、室内の居住性も良好とは言えない。[0006] However, these free access floors have satisfactory rigidity to withstand a specified load, but are heavy in weight, and it is not easy to reduce the size of a portion smaller than a unit size during construction, and it cannot be said that the indoor comfort is good. .
【0007】[0007]
【発明が解決しようとする課題】本発明は、建造物にフ
リーアクセスフロアを施工するにあたって、その床板盤
材をゴムの木の挽き板材で構成することで、単位台床の
重量を軽量化し、施工現場への搬入、施工作業の取扱い
を容易にすると同時に、建造物の重量を軽量化するこ
と、及び熱伝導率の大きい金属材料や無機質材料の人間
生理的に不適切な床材料を使用しないで目的基準を満足
できるフリーアクセスフロアを構成することを目的とす
る。SUMMARY OF THE INVENTION According to the present invention, when constructing a free access floor on a building, the floorboard of the building is made of a sawn board made of rubber wood, thereby reducing the weight of the unit floor. To make it easy to carry in the construction site and handle the construction work, at the same time to reduce the weight of the building, and to use metal and inorganic materials with large thermal conductivity and floor materials that are not physiologically suitable for humans. The purpose of the present invention is to construct a free access floor that satisfies the purpose standard.
【0008】[0008]
【課題を解決するための手段】本発明は、これらの目的
を解決するために、天然材料で人に優しく、住環境を円
やかにする効果を持ち、その上、重量当たりの曲げ剛性
があらゆる材料中最も高い即ち軽くて強い、ゴムの木か
ら成る挽き板材を、床板盤材に採用する。SUMMARY OF THE INVENTION In order to solve these objects, the present invention has the effect of using natural materials to be gentle to humans and to make the living environment round, and furthermore, the flexural rigidity per weight is low. The timber plate made of rubber wood, the tallest of all materials, being light and strong, is employed for the floorboard.
【0009】しかしながら、木材板は繊維方向の曲げ剛
性が大きいが、繊維方向に直交する方向の曲げ剛性はそ
のおよそ20分の1或いは10分の1程度と小さいか
ら、4本の脚による4点支持で中央集中の300kgの
荷重がかけられた場合弱い方向の板目柾目側の支持点間
が大きくたわみまた破壊することとなるが、本発明の基
準によって板状及び棒状に挽き出された木材を本発明の
方法に従って接着再構成することでこの欠点を補い、一
般にはフリーアクセスフロアの床板盤材としては使用困
難であったり、不利になる材料として殆ど使用されてい
ないゴムの木の挽き板材をフリーアクセスフロア床板盤
材とする。However, the wood board has a large bending stiffness in the fiber direction, but the bending stiffness in the direction perpendicular to the fiber direction is as small as about one-twentieth or one-tenth of the bending strength. When a centralized load of 300 kg is applied in support, the gap between the support points on the side of the straight grain and the straight grain in the weak direction greatly bends and breaks, but the wood cut into a plate shape and a rod shape according to the standards of the present invention. To remedy this drawback by gluing and reconstituting according to the method of the present invention, which is generally a hard-to-use or hardly used as a flooring board for a raised floor. Is used as a floor plate material for a free access floor.
【0010】この発明は、床板盤材の盤面内の繊維方向
と直行する方向即ち板面の幅方向に小幅板状乃至棒状の
挽き材を接着して盤材を構成し、この盤材を繊維方向を
同一にして上下両面とし、この両面盤材の間にこれらと
繊維方向が直交するように幅方向に接着した盤材を構成
して接着剤で一体化して再構成した床板盤材とする。According to the present invention, a board material is formed by bonding a small-width plate-like or rod-like sawing material in a direction perpendicular to a fiber direction in a board surface of a floor board, that is, in a width direction of the board surface. The same direction is used for the upper and lower surfaces, and between these double-sided board materials, a board material that is bonded in the width direction so that the fiber direction is orthogonal to the board material is formed and integrated with an adhesive to obtain a reconstructed floor board material. .
【0011】まず、木材の盤材を作成するには、フリー
アクセスフロアの幅方向は少なくとも500mmはある
ものが多いので、一枚板を当てることは資源上あるいは
価格上可能でない。当然ある幅を持った板状の木材を幅
方向に並べることになるが、この時、一般には採材出来
た板幅の木材を出来上がり寸法に並べるが、本発明では
それを任意の幅構成に任せるのではなく、フリーアクセ
スフロア盤材としての剛性を高めるために幅をある定め
られた範囲の寸法とした小幅板或いは棒状挽き材を幅方
向に接着する。First, in order to prepare a wood board, since the width direction of the free access floor is often at least 500 mm, it is not possible in terms of resources or cost to apply a single board. Naturally, plate-shaped lumber with a certain width will be arranged in the width direction, but at this time, in general, wood of the width of the board that was collected can be arranged to the finished size, but in the present invention, it is arranged in an arbitrary width configuration Rather than leaving it, a small width plate or bar-shaped sawn material having a width in a predetermined range is bonded in the width direction in order to increase rigidity as a free access floor board material.
【0012】発明者は、比重0.64のパラゴムの木か
ら成る厚み20mmの小幅板を、その幅が10mm、1
5mm、20mm、25mm、30mmにしてそれぞれ
幅方向に接着することにより盤材を作成し、この盤材の
曲げ強さと曲げヤング率を測定して次の知見(図1参
照)を得た。即ち、曲げ強さは、小幅板の幅が10mm
から30mmへと広くなるにしたがって、855kg/
cm2、825kg/cm2、820kg/cm2、81
0kg/cm2、765kg/cm2と低下し、その低下
傾向は小幅板の幅に反比例する。また曲げヤング率は、
10mm幅が87.8×103kg/cm2 、15mm
幅では79.6×103kg/cm2、20mm幅で7
4.5×103kg/cm2、25mm幅になると74.
5×103kg/cm2、30mm幅でも73.4×10
3kg/cm2となり、幅方向に接着接合する小幅板の幅
が10mmから20mmまでは急激に、その後30mm
までは幅の広くなるに従い曲げヤング率が緩やかに低下
し、それ以上の広幅では殆ど小幅板の幅が影響しないこ
とを知った。The inventor of the present invention has prepared a 20 mm thick narrow plate made of a para rubber tree having a specific gravity of 0.64.
A board material was prepared by bonding in the width direction at 5 mm, 20 mm, 25 mm, and 30 mm, and the bending strength and bending Young's modulus of the board material were measured to obtain the following findings (see FIG. 1). That is, the bending strength is such that the width of the narrow plate is 10 mm.
855 kg /
cm 2 , 825 kg / cm 2 , 820 kg / cm 2 , 81
Decreased to 0kg / cm 2, 765kg / cm 2, its decline is inversely proportional to the width of the narrow plate. The bending Young's modulus is
10mm width is 87.8 × 10 3 kg / cm 2 , 15mm
79.6 × 10 3 kg / cm 2 in width, 7 in 20 mm width
4.5 × 10 3 kg / cm 2 , it becomes 25mm width when 74.
5 × 10 3 kg / cm 2 , 73.4 × 10 even at 30 mm width
3 kg / cm 2 , and the width of the narrow plate to be bonded and bonded in the width direction is sharp from 10 mm to 20 mm, and then 30 mm
Up to this point, it was found that the bending Young's modulus gradually decreased as the width became wider, and that the width of the narrow plate hardly affected the wider width.
【0013】このことから、本発明のフリーアクセスフ
ロア床板盤材の構成材である、ゴムの木から成る小幅板
は、10mm以上20mm以下の幅に設定される。幅を
20mm以上にすると、ヤング率はそれほど低下しない
反面、曲げ強度が徐々に低下する一方、10mm以下で
は性能増加の割合には製造コストが急激に増大し過ぎる
ことになるからである。For this reason, the narrow board made of rubber wood, which is a component of the flooring board of the free access floor of the present invention, is set to have a width of 10 mm or more and 20 mm or less. When the width is 20 mm or more, the Young's modulus does not decrease so much, but the bending strength gradually decreases. On the other hand, when the width is 10 mm or less, the production cost sharply increases to the rate of performance increase.
【0014】さらにまた、本発明では、繊維方向を同一
にする上下両表面盤材の厚みとこれと繊維方向を直交す
る内層盤材の厚みを、フリーアクセスフロアの4本の脚
で支えられたときにどの方向にも同様な剛性を与えるよ
うに構成させてある。発明者の実験研究によると、64
cm2のパラゴム材を使用した3層構造のフリーアクセ
スフロア床板盤材では、表面盤材の繊維方向と直交する
内層盤材の厚みの床板盤材全厚みに占める構成比率は、
70%から90%、好ましくは75%から85%の範囲
にあるものが良いこと(図2参照)を知ることが出来
た。Furthermore, in the present invention, the thicknesses of the upper and lower surfaces of the disc material having the same fiber direction and the thickness of the inner layer disc material orthogonal to the fiber direction are supported by the four legs of the free access floor. Sometimes they are configured to provide similar rigidity in any direction. According to experimental studies by the inventor, 64
In the three-layer free access floor slabs using para rubber material of cm 2 , the composition ratio of the thickness of the inner slabs perpendicular to the fiber direction of the surface slab to the total thickness of the slabs is
It was found that a material in the range of 70% to 90%, preferably 75% to 85% was good (see FIG. 2).
【0015】従って、本発明に係るフリーアクセスフロ
ア床板盤材の構成は、上下の両表面盤材の合計厚みが3
0%から10%、つまり上下表面盤材1枚の厚みが床板
盤材全厚みの15%から5%となるが好ましくは12%
から7%の範囲であり、上下表面盤材に繊維方向が直交
するように配置される内層盤材の厚みの占める比率が床
板盤材全厚みの70%から90%、好ましくは75%か
ら85%の範囲である、3層構成の接着積層材である。
しかも上下表面盤材と内層盤材は、これらの構成厚みを
持ち、かつ前記したように幅が10mmから20mmま
でのゴムの木から成る小幅板(或いは棒)を、接着剤で
相互に側面を接着接合することによって形成されてい
る。Therefore, the structure of the floor board of the free access floor according to the present invention is such that the total thickness of the upper and lower surface board is 3 mm.
0% to 10%, that is, the thickness of one upper and lower surface board material is 15% to 5% of the total thickness of the floor board material, but preferably 12%.
And the ratio of the thickness of the inner layer board material arranged so that the fiber direction is perpendicular to the upper and lower surface board material is 70% to 90%, preferably 75% to 85% of the total thickness of the floor board material. % In the range of 3%.
Moreover, the upper and lower surface board members and the inner layer board member have the thicknesses as described above, and as described above, a narrow plate (or bar) made of a rubber tree having a width of 10 mm to 20 mm is attached to the side surfaces with an adhesive. It is formed by adhesive bonding.
【0016】また、このように構成されたフリーアクセ
スフロア床板盤材は、盤材の繊維方向と同一方向、直角
方向の両方向にほぼ同一な曲げ剛性を持っていて、しか
も同一樹種の木材を使った同じ厚みのどのような構成の
盤材よりも4点支持での荷重に最も強い抵抗力を示す。Further, the free access floor slab board thus constructed has substantially the same flexural rigidity in both the same direction as the fiber direction of the board and in the perpendicular direction, and uses wood of the same tree type. It shows the strongest resistance to the load at the four-point support than any other board material of the same thickness.
【0017】本発明の構成によれば、同一樹種同一厚み
では最も強い碁盤状4点支持フリーアクセスフロア床板
盤材を与えるが、全体厚みが要求される過重負担とたわ
み限度を満足しない場合には、積層盤材を構成する小幅
板(或いは棒)の一部分に替えて、使用している樹種よ
りも曲げ剛性の強い小幅板状或いは棒状の挽き材を適宜
配置して接着接合することにより、置き換え数に応じて
剛性を向上させることが出来る。According to the structure of the present invention, the same type of tree and the same thickness provide the strongest four-point support free-access floor slab board material of the same type, but if the overall thickness does not satisfy the required overburden and deflection limit, In place of a part of the narrow plate (or bar) that constitutes the laminated board material, a small-width plate or bar-like sawing material having higher bending rigidity than the tree species used is appropriately arranged and bonded and replaced. The rigidity can be improved according to the number.
【0018】曲げ剛性が満足出来ない場合に、小幅板に
他樹種の併用をして同じ厚みながら積層する盤材の剛性
を向上して対応する前述の構成のほか、積層盤材の幅は
ぎ小幅板の幅を10mmから30mmまでに制限して幅
はぎ接着層の接着剤硬化層の剛性改良効果を利用したと
同じように、3層の盤材を互いに積層する積層接着の接
着層を強固にして厚み方向で接着層による強化効果を上
げることが出来る。In the case where the bending rigidity is not satisfactory, in addition to the above-described structure in which a narrow board is used in combination with another tree species to improve the rigidity of the board to be laminated while having the same thickness, the width of the laminated board is small. The width of the board is limited to 10 mm to 30 mm, and in the same way as the effect of improving the rigidity of the adhesive cured layer of the width adhesive layer is used, the adhesive layer of the laminated adhesive for laminating three layers of board material is strengthened. Thus, the reinforcing effect by the adhesive layer can be enhanced in the thickness direction.
【0019】本発明に係るフリーアクセスフロア床板盤
材は3層構造を成しているので、接着層は、2層存在す
る。そこで2層の接着層中に接着剤高分子化合物よりも
剛性の強い材料を包含、埋め込む、挟み込んで接着層強
化を行うと床板盤材の剛性を高められることを発見し
た。The free access floor board according to the present invention has a three-layer structure, and therefore has two adhesive layers. Therefore, it has been found that the rigidity of the floorboard material can be increased by strengthening the adhesive layer by including, embedding, or sandwiching a material having higher rigidity than the adhesive polymer compound in the two adhesive layers.
【0020】接着層中に包含させる材料として、グラス
ウール、カーボンファイバー、金属フィラメント、パル
プ、繊維などの一つ或いは複数が、繊維状を成したま
ま、それらがマット状に成っているもの、またシート
状、布状等に成型されているもの等のほか、10分の1
mm以下の厚みの金属箔、金網等がある。接着剤にそれ
ら強化材料と木材の双方に接着可能なものを選べば、そ
れら強化材料は容易に複合化して強固なマトリックス層
となり、床板盤材の剛性を向上増加させることが出来
る。As a material to be included in the adhesive layer, one or more of glass wool, carbon fiber, metal filament, pulp, fiber, and the like are formed in a fibrous state while forming a fibrous state, or a sheet. Shape, cloth shape, etc., as well as 1/10
There is a metal foil, a wire net or the like having a thickness of not more than mm. If an adhesive is selected that can be bonded to both the reinforcing material and the wood, the reinforcing material can be easily compounded into a strong matrix layer, and the rigidity of the floorboard can be improved and increased.
【0021】厚み方向の剛性向上に3層構造に挟まれる
2層の接着層を強化することが効果を表していることか
ら、上下表面盤材に接着剤層をより沢山含んでいる合板
或いは単板積層板を採用すると、同一厚みの挽き板材に
比べて接着剤層の強化効果を利用出来るので、これらを
使用することは有効である。また、このフリーアクセス
フロア床板盤材は、表面に難燃性の塗料や電磁波シール
ド性を持つ塗料など各種の機能性を備えた塗料によるコ
ーティング層を施すようにしても良い。Since the effect of strengthening the two adhesive layers sandwiched by the three-layer structure to improve the rigidity in the thickness direction is effective, a plywood or a plywood having more and more adhesive layers on the upper and lower surface board members is shown. The use of a laminated board allows the use of the strengthening effect of the adhesive layer as compared with a ground plate having the same thickness. In addition, this free access floor panel board material may be provided with a coating layer having various functionalities such as a flame-retardant paint or a paint having an electromagnetic wave shielding property on its surface.
【0022】[0022]
【実施例】実施例1 パラゴムの木の乾燥材を用い、2つのフリーアクセスフ
ロア床板盤材を得た。一方の床板盤材は、上下表面盤材
に幅15mm、厚み4mmの小幅挽き板を、また内層盤
材として幅15mmで厚み24mmの挽き板を使い、こ
れらの上下表面盤材と内層盤材を積層接着して54cm
角とした。他方の床板盤材は、上下表面盤材に上記と同
幅の挽き板で厚みが5mmのものを使い、内層盤材に上
記と同幅で22mm厚のものを使用して、同一寸法角に
形成した。4点支持各スパン450mmで中央集中荷重
340kgを負荷させた時の最大たわみ量と見かけの曲
げヤング率を測定した。なお、内層盤材の全厚みに対す
る比率は、前者が75%(本発明の設定厚み範囲内)、
後者が68%(本発明の設定厚み範囲外)である。EXAMPLES Example 1 Two free access floor slabs were obtained using dried para rubber wood. On the other hand, for the floor board material, a 15 mm wide, 4 mm thick ground board is used for the upper and lower surface board material, and a 15 mm wide, 24 mm thick ground board is used as the inner layer board material. Laminated and bonded 54cm
Corners. For the other floor board, use a ground board with the same width as above and a thickness of 5 mm for the upper and lower surface board, and use the same width and 22 mm thickness for the inner layer board and the same size and angle. Formed. The maximum amount of deflection and the apparent bending Young's modulus when a central concentrated load of 340 kg was applied to each of the four points supported at a span of 450 mm were measured. The ratio of the inner layer material to the total thickness is 75% for the former (within the thickness range set in the present invention),
The latter is 68% (out of the range of the thickness set in the present invention).
【0023】測定結果によれば、前者の最大たわみ量は
0.180mm、ヤング率は42.0×103kg/c
m2で、満足する剛性を示していた。一方、後者はそれ
ぞれ0.199mm、38.0×10kg/cmであ
り、内層盤材の厚みが薄くなり、全厚みに対する比率が
本発明の範囲外であるので、上下表面盤材の繊維方向に
対して縦横のバランスがとれず弱い方向の強さが優先し
てたわみ量を大きくしていることが確認できた。According to the measurement results, the former has a maximum deflection of 0.180 mm and a Young's modulus of 42.0 × 10 3 kg / c.
m 2 showed satisfactory stiffness. On the other hand, the latter are 0.199 mm and 38.0 × 10 kg / cm, respectively, and the thickness of the inner layer board material is thin, and the ratio to the total thickness is out of the range of the present invention. On the other hand, it could be confirmed that the balance in the vertical and horizontal directions could not be maintained and the strength in the weak direction was prioritized to increase the amount of deflection.
【0024】実施例2 パラゴムの木を使って形成した床板盤材と、図4に示す
ように内層盤材の一部にパラゴムの木よりも強度の高い
ダマールラウト材より成る小幅挽き板を使って形成した
床板盤材とについて、最大たわみ量と曲げヤング率を比
較測定した。なお、両床板盤材は、共に、上下表面盤材
の厚みが2.5mm、内層盤材の厚みが20mm、床板
盤材の全厚みが25mmであり、小幅挽き板の各幅も1
5mmと同じである。Example 2 A floorboard made of para rubber wood and, as shown in FIG. 4, a small-grained board made of damar laut having higher strength than para rubber wood is used as a part of the inner layer wood. The maximum deflection amount and the bending Young's modulus were compared and measured for the floor panel material formed by the above method. In addition, both floor board material, the thickness of the upper and lower surface board material is 2.5 mm, the thickness of the inner layer board material is 20 mm, the total thickness of the floor board material is 25 mm, and each width of the narrow sawing board is also 1 mm.
Same as 5 mm.
【0025】 最大たわみ 曲げヤング率 パラゴム材のみ 3.38mm 41.4×103kg/cm2 ダマールラウト材置換 3.08mm 45.4×103kg/cm2 Maximum deflection Bending Young's modulus Para rubber material only 3.38 mm 41.4 × 10 3 kg / cm 2 Damarrout material replacement 3.08 mm 45.4 × 10 3 kg / cm 2
【0026】測定値からも、内層盤材の小幅挽き板の一
部をパラゴム材から強度の強いダマールラウト材に置換
すると、床板盤材のたわみ量が減少し、曲げヤング率も
改善されることが立証されて、本発明の効果が発揮され
ている。From the measured values, it can be seen that, when a part of the narrow-grained board of the inner layer board is replaced with a high-strength damar-laut material from para rubber, the amount of deflection of the floor board is reduced and the bending Young's modulus is also improved. Has been proved, and the effect of the present invention is exhibited.
【0027】実施例3 小幅挽き板の幅、厚み方向の構成比率、全体厚み、樹種
すべて同一な床板盤材を2試料製造した。そのうちの一
方の床板盤材は、2つの接着層を通常の接着剤のみで接
着し、他方の床板盤材は、接着層に厚み0.05mmの
アルミ箔を包埋させて接着してある。Example 3 Two samples of floorboards having the same width, the composition ratio in the thickness direction, the total thickness, and the tree type of the narrow sawing board were produced. One of the floorboards is bonded with two adhesive layers only with a normal adhesive, and the other floorboard is bonded with a 0.05 mm thick aluminum foil embedded in the bonding layer.
【0028】両床板盤材の最大たわみ量と曲げヤング率
を測定したところ、次の結果が得られた。 最大たわみ 曲げヤング率 通常接着したもの 0.308mm 40.8×103kg/cm2 アルミ箔を介在させたもの 0.239mm 49.1×103kg/cm2 When the maximum deflection and the bending Young's modulus of both floorboards were measured, the following results were obtained. Maximum deflection Bending Young's modulus Normally bonded 0.308 mm 40.8 × 10 3 kg / cm 2 With aluminum foil interposed 0.239 mm 49.1 × 10 3 kg / cm 2
【0029】測定結果によれば、アルミ箔を介在させた
ものは、通常接着剤でのみ接着したものよりも、接着剤
層が強化され、最大たわみの減少と曲げヤング率の改善
によって床板盤材の剛性が高くなっているのが解かる。According to the measurement results, the one with the aluminum foil interposed therebetween has a stronger adhesive layer than the one bonded only with an ordinary adhesive, and has a reduced maximum deflection and an improved bending Young's modulus. You can see that the stiffness has increased.
【0030】[0030]
【発明の効果】以上述べたように、本発明によれば、床
板盤材を構成する上下表面盤材と内層盤材にゴムの木か
ら成る小幅の挽き板材を用い、この挽き板材の幅と厚み
を所定の関係範囲に設定するとともに、3層に結合され
る上下表面盤材と内層盤材を挽き板の繊維方向が直交す
るようにして配置したので、木材を使用しながらも、高
い曲げ強度とヤング率を持つ剛性に富んだフリーアクセ
スフロア用の床板盤材を提供できる。また、本発明によ
れば、比較的に軽量の素材を用いているので、施工現場
への搬入を含めた施工作業を容易化できるばかりでな
く、住環境の維持、向上にも貢献できる。の挽き板を幅
方向に接着して形成され、As described above, according to the present invention, a small-width ground plate made of rubber tree is used for the upper and lower surface base materials and the inner layer base material constituting the floor plank, and the width of the ground plate is reduced. The thickness is set in a predetermined range, and the upper and lower surface board materials and inner layer board material combined into three layers are arranged so that the fiber direction of the sawing plate is orthogonal, so that high bending is performed while using wood. It is possible to provide a flooring board material for a free access floor, which has high strength and a Young's modulus and is rich in rigidity. Further, according to the present invention, since a relatively lightweight material is used, not only the construction work including carrying into the construction site can be simplified, but also the maintenance and improvement of the living environment can be contributed. Glued in the width direction to form a ground plate,
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の一実施例に係る盤材の小幅挽き板の幅
と剛性との関係を示す表。FIG. 1 is a table showing the relationship between the width of a narrow sawing board of a board material and rigidity according to one embodiment of the present invention.
【図2】本発明の一実施例に係る床板盤材において、そ
の全厚みに対し、剛性がほぼ等しくなるような内層盤材
の構成比率を示す表。FIG. 2 is a table showing a composition ratio of an inner layer board material having substantially the same rigidity with respect to the entire thickness of the floor board material according to one embodiment of the present invention.
【図3】本発明の一実施例に係る床板盤材の構造を示す
説明図。FIG. 3 is an explanatory view showing the structure of a floorboard according to an embodiment of the present invention.
【図4】本発明の他の実施例に係る床板盤材の一部を拡
大した説明図。FIG. 4 is an explanatory view in which a part of a floorboard according to another embodiment of the present invention is enlarged.
フロントページの続き Fターム(参考) 2B250 AA05 DA03 DA04 EA01 EA13 FA13 FA31 GA01 4F100 AB01H AB10 AB33H AD11H AG00H AJ04H AK01D AK01E AP00B AP01A AP01C AP02A AP02C AR00D AR00E BA03 BA05 BA06 BA10A BA10C BA22 BA25 CA23D CA23E CB00 DC22A DC22B DC22C DG01H DG06H DG11H GB08 JK04 JK07 JL11D JL11E YY00A YY00B YY00C Continued on the front page F-term (reference) 2B250 AA05 DA03 DA04 EA01 EA13 FA13 FA31 GA01 4F100 AB01H AB10 AB33H AD11H AG00H AJ04H AK01D AK01E AP00B AP01A AP01C AP02A AP02C AR00D AR00E BA03 BA05 BA06 DC23 BA22 DC12 BA22 DC23 GB08 JK04 JK07 JL11D JL11E YY00A YY00B YY00C
Claims (6)
した盤材を上下両面盤材の繊維方向とその繊維方向が直
交するよう配置した内層材を接着剤で一体化再構成した
挽き材3層構造のフリーアクセスフロアの床板盤材。1. An inner layer material in which a board material in which a narrow plate-shaped or bar-shaped ground plate is bonded in the width direction is arranged so that the fiber direction of the upper and lower double-sided board material is orthogonal to the fiber direction is integrally reconfigured with an adhesive. Floorboard board material of free access floor with three layers of sawn timber.
至棒状の挽き材の幅が10mmから20mmまでのもの
を幅方向に接着した特許請求範囲第1項記載の床板盤
材。2. The floorboard board according to claim 1, wherein a small-width plate-shaped or bar-shaped sawnwood having a width of 10 mm to 20 mm, which constitutes the board to be reconfigured, is bonded in the width direction.
表面材の厚みが床板盤材全厚みの15%から5%まで、
上下両面の厚み合計が30%から10%まで、このまし
くは25%から15%であり、内層盤材の全厚みに対す
る比率が70%から90%このましくは75%から85
%までである特許請求範囲第2項記載の床板盤材。3. The thickness of the upper and lower surfaces of the three-layer board material to be re-adhered is from 15% to 5% of the total thickness of the floor board material.
The total thickness of the upper and lower surfaces is 30% to 10%, preferably 25% to 15%, and the ratio to the total thickness of the inner layer board is 70% to 90%, preferably 75% to 85%.
%. 3. The floorboard according to claim 2, wherein the amount is up to%.
至棒状の挽き材の一部を使用している樹種より曲げ剛性
の強いものに置き換えた特許請求範囲第3項記載の床板
盤材。4. The floorboard according to claim 3, wherein a part of a small-width plate-shaped or rod-shaped sawn wood constituting a board material to be bonded and reconstructed is replaced with a tree material having a higher bending rigidity than a tree species. Wood.
る2つの接着層中にグラスウール、カーボンファイバ
ー、金属フィラメント、パルプ、繊維等の一つ或いは複
数が繊維状、マット状、シート状、布状等の形で、また
或いは10分の1mm以下の厚みの金属箔、網等を接着
剤層中に包含、埋め込み、挟み込んだ特許請求範囲第3
項記載の床板盤材。5. One or more of glass wool, carbon fiber, metal filament, pulp, fiber, etc., in a fibrous form, a mat form, a sheet form, etc., in two adhesive layers for adhering the respective board materials constituting the floor board material to each other. A metal foil, a net, or the like having a thickness of 1/10 mm or less in the form of a cloth, or the like, or is included, embedded, and sandwiched in the adhesive layer.
Floor board material described in the item.
板積層材に置き換えた特許請求範囲第3項記載の床板盤
材。6. The floor board according to claim 3, wherein the surface board of the board to be reconstructed is replaced with a plywood or veneer laminate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24281498A JP3180152B2 (en) | 1998-08-28 | 1998-08-28 | Floorboards for raised floors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24281498A JP3180152B2 (en) | 1998-08-28 | 1998-08-28 | Floorboards for raised floors |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000073544A true JP2000073544A (en) | 2000-03-07 |
JP3180152B2 JP3180152B2 (en) | 2001-06-25 |
Family
ID=17094696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24281498A Expired - Fee Related JP3180152B2 (en) | 1998-08-28 | 1998-08-28 | Floorboards for raised floors |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3180152B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030009923A (en) * | 2001-07-24 | 2003-02-05 | 산림조합중앙회 | Laminated flooring, laminated wood, and methods of producing the same |
JP2003253870A (en) * | 2002-03-05 | 2003-09-10 | Fuji Ultrasonic Engineering Co Ltd | Laminated floor material made of solid plate, and construction method of floating floor using the same |
JP2019190067A (en) * | 2018-04-20 | 2019-10-31 | 株式会社竹中工務店 | Wood floor material, fixing structure for wood floor material, and method for manufacturing wood floor material |
-
1998
- 1998-08-28 JP JP24281498A patent/JP3180152B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030009923A (en) * | 2001-07-24 | 2003-02-05 | 산림조합중앙회 | Laminated flooring, laminated wood, and methods of producing the same |
JP2003253870A (en) * | 2002-03-05 | 2003-09-10 | Fuji Ultrasonic Engineering Co Ltd | Laminated floor material made of solid plate, and construction method of floating floor using the same |
JP2019190067A (en) * | 2018-04-20 | 2019-10-31 | 株式会社竹中工務店 | Wood floor material, fixing structure for wood floor material, and method for manufacturing wood floor material |
JP7155490B2 (en) | 2018-04-20 | 2022-10-19 | 株式会社竹中工務店 | WOODEN FLOOR MATERIAL, FIXING STRUCTURE OF WOODEN FLOOR MATERIAL, AND METHOD FOR MANUFACTURING WOODEN FLOOR MATERIAL |
Also Published As
Publication number | Publication date |
---|---|
JP3180152B2 (en) | 2001-06-25 |
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