JPH0865863A - Wiring duct support structure on floor - Google Patents
Wiring duct support structure on floorInfo
- Publication number
- JPH0865863A JPH0865863A JP6194371A JP19437194A JPH0865863A JP H0865863 A JPH0865863 A JP H0865863A JP 6194371 A JP6194371 A JP 6194371A JP 19437194 A JP19437194 A JP 19437194A JP H0865863 A JPH0865863 A JP H0865863A
- Authority
- JP
- Japan
- Prior art keywords
- duct
- wiring
- floor
- joist
- wiring duct
- 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
- Details Of Indoor Wiring (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ベース面上に複数の根
太を配設し、それらの根太上に複数の床パネルを支持す
るようにした床における配線ダクトの支持構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a wiring duct on a floor in which a plurality of joists are arranged on a base surface and a plurality of floor panels are supported on the joists.
【０００２】[0002]
【従来の技術】床パネルの支持に根太を用いた二重床
は、従来は単なる床として使用されてきたが、最近で
は、根太を支持する床ベース面と、根太上に支持される
床パネルとの間の床下空間を配線空間として使用するこ
とにより、配線が床面上に露出しないようにしたものも
出てきた。2. Description of the Related Art Double floors that use joists for supporting floor panels have been used as mere floors in the past, but recently, floor base surfaces that support joists and floor panels supported on joists. Some have also used the underfloor space between and as a wiring space to prevent the wiring from being exposed on the floor surface.
【０００３】一方、上面が蓋で開閉可能な配線ダクトを
床のスラブコンクリートや後打ちコンクリート内に埋設
して配線路とすることにより、配線が床面上に露出しな
いようにしたものも既に知られている。On the other hand, it is already known that a wiring duct whose upper surface can be opened and closed with a lid is buried in slab concrete or post-cast concrete on the floor to form a wiring path so that the wiring is not exposed on the floor surface. Has been.
【０００４】[0004]
【発明が解決しようとする課題】前者のように根太二重
床の床下空間をそのまま配線空間とする場合には、床下
空間の有効利用が図られる上、配線が露出せず美観や安
全性の面で有利である等の利点を有しているが、その反
面、床下空間に配線が縦横に通って乱雑になる傾向があ
り、また追加配線やメンテナンス等の際には床パネルの
開閉に手間がかかる等の問題がある。When the underfloor space of the joist double floor is used as the wiring space as in the former case, the underfloor space can be effectively used, and the wiring is not exposed to improve the appearance and safety. However, on the other hand, there is a tendency that the wiring runs vertically and horizontally in the underfloor space and becomes messy, and it is troublesome to open and close the floor panel during additional wiring or maintenance. There is a problem such as being overloaded.
【０００５】このような問題は、後者のように配線ダク
トを用いて配線路を形成する場合には全て解決される
が、従来の配線ダクトは床のスラブコンクリートや後打
ちコンクリート内に埋設一体化されていたので、その埋
設工事が比較的複雑、面倒であるばかりか、既存建物に
ダクトを埋設する場合は床コンクリートの“はつり作
業”を必要とし、床の大幅な改修工事が必要となる等の
別の問題がある。Although the above problems are all solved when the wiring duct is formed by using the wiring duct as in the latter case, the conventional wiring duct is embedded and integrated in the floor slab concrete or post-cast concrete. Since the burying work is relatively complicated and troublesome, it is necessary to carry out “chipping work” of the floor concrete when burying the duct in the existing building, and a substantial floor renovation work is required. There is another problem.
【０００６】本発明は斯かる実情に鑑みてなされたもの
で、従来のものの上記問題を一挙に解決することができ
る、床における配線ダクト支持構造を提供することを目
的とするものである。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wiring duct supporting structure for a floor, which can solve all the above problems of the conventional ones.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に請求項１の発明は、ベース面上に複数の根太を配設
し、それらの根太上に複数の床パネルを支持するように
した床において、上面に開口部を有するダクト本体と該
開口部を開閉可能に塞ぐ蓋とよりなる配線ダクトを根太
上に載置固定すると共に、その配線ダクトの上面を、該
ダクトに隣接させた床パネルの上面と面一になるように
形成したことを特徴とし、また請求項２の発明は、前記
特徴に加えて、前記ダクト本体の下面に、前記根太の上
部と係合させるべく該根太の長手方向に沿って延びる係
合溝部を形成したことを特徴とし、更に請求項３の発明
は、前記各特徴に加えて、前記ダクト本体下部の両側部
に、その外側方に延出する張出部を一体に連設し、その
張出部の上面に、該ダクト本体と隣接する床パネルの側
縁部を支持し、またその張出部の下面に、ベース面上に
立設される補助脚の上端部と係合し得る係合部を一体に
形成したことを特徴としている。In order to achieve the above object, the invention of claim 1 is such that a plurality of joists are arranged on the base surface and a plurality of floor panels are supported on the joists. On the floor, a wiring duct consisting of a duct main body having an opening on the upper surface and a lid that opens and closes the opening is placed and fixed on the joist, and the upper surface of the wiring duct is adjacent to the floor. The invention is characterized by being formed so as to be flush with the upper surface of the panel, and the invention of claim 2 is characterized in that, in addition to the above characteristics, the lower surface of the duct body is engaged with the upper part of the joist. The invention of claim 3 is characterized in that an engagement groove portion extending along the longitudinal direction is formed. Further, in addition to the above respective features, the protrusion extending outwardly is provided on both side portions of the lower portion of the duct main body. Parts are integrally connected, and the upper surface of the overhanging part is Supporting the side edge of the floor panel adjacent to the main body of the floor, and the lower surface of the overhanging portion is integrally formed with an engaging portion capable of engaging with the upper end portion of the auxiliary leg that is erected on the base surface. It is characterized by that.
【０００８】[0008]
【作 用】各請求項の発明の上記構成によれば、上面が
蓋で開閉可能な配線ダクトを用いて床下の配線路が構築
されるため、配線が床面上に露出せず美観や安全性の面
で有利であるばかりか、追加配線やメンテナンス等の際
には、開閉が容易なダクト蓋を開いて配線作業や保守点
検作業を容易に行い得る。しかも斯かる配線ダクトが根
太上に載置固定されるため、既存建物に配線ダクトを新
設する場合あるいはダクトの増設や線路変更等を行なう
ような場合に、根太、配線ダクト及び床パネルを敷き並
べる所謂かさあげ工事で簡単に対応できる。[Operation] According to the above configuration of the inventions of each claim, since the wiring path under the floor is constructed by using the wiring duct whose upper surface can be opened and closed by the lid, the wiring is not exposed on the floor surface, and the appearance and safety are improved. Not only is it advantageous in terms of performance, but in the case of additional wiring or maintenance, it is possible to open the duct lid that can be easily opened and closed to easily perform wiring work and maintenance inspection work. Moreover, since such a wiring duct is placed and fixed on the joist, the joist, the wiring duct and the floor panel are laid out when a new wiring duct is installed in an existing building or when the duct is added or the line is changed. It can be easily handled by so-called lifting work.
【０００９】また特に請求項２の発明の上記構成によれ
ば、ダクト本体の下面に凹設した係合溝部を根太の上部
に係合させることによって、配線ダクトと根太との相対
的な位置決めを容易に行うことができ、しかも配線ダク
トを根太対応部分を除いて極力深底に形成できる。Further, according to the above configuration of the invention of claim 2, the engagement position of the wiring duct and the joist is relatively positioned by engaging the engaging groove portion recessed in the lower surface of the duct body with the upper part of the joist. It can be easily performed, and the wiring duct can be formed as deep as possible except the part corresponding to the joist.
【００１０】更に請求項３の発明の上記構成によれば、
配線ダクトに隣接する床パネルを該配線ダクトに直接支
持させることができ、しかもその支持強度が補助脚によ
って高められる。またその補助脚の位置決めは上記張出
部下面の係合部と補助脚上端部との係合によって容易に
行い得る。Further, according to the above configuration of the invention of claim 3,
The floor panel adjacent to the wiring duct can be directly supported by the wiring duct, and its supporting strength is enhanced by the auxiliary leg. Further, the positioning of the auxiliary leg can be easily performed by engaging the engaging portion on the lower surface of the overhanging portion and the upper end portion of the auxiliary leg.
【００１１】[0011]
【実施例】以下、図面により本発明の実施例について説
明する。図１は、本発明を実施した床の、床パネルを一
部取り外した状態を示す概略全体平面図、図２は、図１
の２−２矢視拡大断面図、図３は、根太および配線ダク
トの支持構造を示す要部拡大斜視図、図４は、図１の４
−４矢視拡大断面図、図５は、十字状交差配線ダクトの
要部拡大斜視図である。Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic overall plan view showing a state in which a floor panel is partially removed, of the floor according to the present invention, and FIG.
2-2 is an enlarged cross-sectional view taken along the arrow 2 in FIG. 3, FIG. 3 is an enlarged perspective view of an essential part showing a supporting structure of joists and wiring ducts, and FIG.
-4 is an enlarged cross-sectional view taken along arrow 4, and FIG. 5 is an enlarged perspective view of a main portion of the cross-shaped cross wiring duct.
【００１２】先ず、図１において、室内の床Ｆには、そ
の床面に沿って縦横にのびる床配線装置Ａが配設されて
おり、その床配線装置Ａは、互いに縦列配置される複数
の配線ダクトＤと、それらの配線ダクト列を上方より見
てＴ字状、十字状、あるいはＬ字状に接続する交差配線
ダクトＤ′（図示例では十字状）とを組み合わせて構成
され、それらダクトＤ，Ｄ′によって床Ｆに縦横に延び
る所定の配線路を形成するものである。First, in FIG. 1, a floor wiring device A extending vertically and horizontally along the floor surface of a floor F in a room is provided, and the floor wiring device A is arranged in a plurality of columns. Wiring ducts D and cross wiring ducts D ′ (in the example shown in the drawing) that connect the wiring duct rows in a T-shape, a cross shape, or an L-shape when viewed from above are configured in combination. A predetermined wiring path extending vertically and horizontally is formed on the floor F by D and D '.
【００１３】床Ｆの、スラブコンクリート等で形成され
た水平なベース面ｆB には、後述する支持脚ユニットＵ
を介して鋼製の根太Ｎが縦横に配列支持されており、そ
れらの根太Ｎには多数の床パネルＰおよび床配線装置Ａ
の各配線ダクトＤが載置支持されている。On a horizontal base surface f B of the floor F formed of slab concrete or the like, a support leg unit U described later is provided.
The joists N made of steel are vertically and horizontally arrayed through and supported by a plurality of floor panels P and floor wiring devices A.
Each wiring duct D is mounted and supported.
【００１４】次に図２〜４を参照して根太Ｎの支持構造
について説明する。各々の根太Ｎは、鋼材を横断面略長
方形に成形して構成されており、床Ｆのベース面ｆB に
沿い且つ直線状に長く延びている。ベース面ｆB 上に
は、根太Ｎの長手方向に間隔をおいて複数の支持脚ユニ
ットＵが配設されており、これら支持脚ユニットＵ上に
根太Ｎが着脱可能に架設連結される。Next, the supporting structure of the joist N will be described with reference to FIGS. Each joist N is formed by forming a steel material into a substantially rectangular cross section and extends linearly along the base surface f B of the floor F. On the base surface f B , a plurality of support leg units U are arranged at intervals in the longitudinal direction of the joist N, and the joist N is detachably erected on these support leg units U.
【００１５】各支持脚ユニットＵは、ベース面ｆB 上に
固着されるベース板１と、このベース板１上にそれぞれ
一体的に立設されて根太Ｎの長手方向（図２，４で紙面
と直交する方向）及び横方向（図２，４で左右方向）に
互いにオフセット配置された一対の主支持脚２，２と、
その両主支持脚２，２の上部間に横架連結された支持板
４と、この支持板４上に接合されて上面に根太Ｎを直接
載置させるゴム等の緩衝材よりなる支持プレート３と、
その支持板４の左右両側に穿設した係合孔４ａに両端部
をそれぞれ折曲係止させて支持プレート３上の根太Ｎを
上から押さえつける金属板製の固定バンド５とより構成
される。支持板４の左右両側には、根太Ｎを左右より挟
む左右一対の挟持片４ｂ，４ｃがそれぞれ一体に折曲形
成されており、その両挟持片４ｂ，４ｃは根太Ｎの長手
方向に互いに間隔をおいて配設され、その中間に固定バ
ンド５が位置する。Each of the supporting leg units U is a base plate 1 fixed on a base surface f B , and is erected integrally on the base plate 1 in the longitudinal direction of the joist N (in FIGS. A pair of main support legs 2 and 2 which are offset from each other in a direction orthogonal to the direction) and in a lateral direction (left and right directions in FIGS.
A supporting plate 4 horizontally connected between the upper portions of the two main supporting legs 2 and 2, and a supporting plate 3 made of a cushioning material such as rubber that is joined to the supporting plate 4 and allows the joist N to be directly placed on the upper surface thereof. When,
The support plate 4 is composed of a fixing band 5 made of a metal plate for bending and locking both ends in engagement holes 4a formed on both right and left sides of the support plate 4 to press the joist N on the support plate 3 from above. A pair of left and right holding pieces 4b and 4c that sandwich the joist N from the left and right are integrally formed on both left and right sides of the support plate 4, and the two holding pieces 4b and 4c are spaced from each other in the longitudinal direction of the joist N. And the fixing band 5 is located in the middle.
【００１６】前記支持板４は、各主支持脚２を挿通させ
る挿通孔（図示せず）を有すると共に、その各主支持脚
２の外周面に刻設したねじ部にそれぞれ螺合される上下
一対のナット６，７間に挟持されており、その両ナット
６，７の螺合位置を調節することにより各支持板４の高
さを任意に調節することができる。而して根太Ｎの設置
に際しては、先ず、その設置予定位置に沿って間隔をお
いて並べた複数の支持脚ユニットＵの各支持板４上に根
太Ｎを載置して、固定バンド５により根太Ｎを各支持板
４に固定し、この状態で各支持脚ユニットＵのナット
６，７を適宜回動操作して各支持板４上の根太Ｎの高さ
を調整する。次いで各支持脚ユニットＵのベース板１を
接着剤、アンカー等の適宜固定手段により床Ｆのベース
面ｆB に固定すれば、支持脚ユニットＵにより根太Ｎを
ベース面ｆB 上の所望の高さ位置に設置固定することが
できる。The support plate 4 has through holes (not shown) through which the main support legs 2 are inserted, and upper and lower parts which are respectively screwed into screw parts engraved on the outer peripheral surface of the main support legs 2. It is sandwiched between a pair of nuts 6 and 7, and the height of each support plate 4 can be arbitrarily adjusted by adjusting the screwing positions of both nuts 6 and 7. When installing the joist N, first, the joist N is placed on each of the support plates 4 of the plurality of support leg units U arranged at intervals along the planned installation position, and the fixing band 5 is used. The joist N is fixed to each support plate 4, and in this state, the nuts 6 and 7 of each support leg unit U are appropriately rotated to adjust the height of the joist N on each support plate 4. Then, the base plate 1 of each supporting leg unit U is fixed to the base surface f B of the floor F by an appropriate fixing means such as an adhesive or an anchor, and the joist N is supported by the supporting leg unit U to a desired height on the base surface f B. It can be installed and fixed in the position.
【００１７】複数の根太Ｎは、図１に示す如く床Ｆの適
宜位置に相互に間隔をおいて配設されており、その大部
分の根太Ｎは、隣接するもの同士が互いに協働して図４
に示す如く１枚の床パネルＰをその両側で載置支持し、
必要に応じてボルトＢで根太Ｎの上壁に固定する。この
場合、根太Ｎの上面と床パネルＰの下面との間には、前
記固定バンド５と略同じ厚みのゴム等のクッション材よ
りなるシート板１２が介装される。As shown in FIG. 1, a plurality of joists N are arranged at appropriate positions on the floor F at intervals, and most of the joists N are adjacent to each other in cooperation with each other. Figure 4
As shown in, one floor panel P is placed and supported on both sides,
If necessary, secure it to the upper wall of joist N with bolts B. In this case, between the upper surface of the joist N and the lower surface of the floor panel P, a seat plate 12 made of a cushion material such as rubber having substantially the same thickness as the fixing band 5 is interposed.
【００１８】また一部の根太Ｎには、前記配線ダクトＤ
が載置固定されており、次にその配線ダクトＤの支持構
造を具体的に説明する。図２に示すように各配線ダクト
Ｄは、上面に開口部８ａを有するチャンネル状に形成さ
れて根太Ｎの長手方向に延びるダクト本体８と、そのダ
クト本体８の開口部８ａを開閉可能に塞ぐ蓋９とより構
成されており、ダクト本体８内は、その底壁中央部より
起立する隔壁１０によって、電源線を収納するための第
１配線路Ｌ1 と、電話線又は信号線を収納するための第
２配線路Ｌ2 とに区画される。The wiring duct D is provided on a part of the joist N.
Is mounted and fixed. Next, the support structure of the wiring duct D will be specifically described. As shown in FIG. 2, each wiring duct D is formed in a channel shape having an opening 8a on the upper surface and extends in the longitudinal direction of the joist N, and the opening 8a of the duct main body 8 is opened and closed. The duct main body 8 is constituted by a lid 9, and a first wiring path L 1 for accommodating a power supply line and a telephone line or a signal line are accommodated in the duct main body 8 by a partition wall 10 standing upright from a central portion of the bottom wall. And the second wiring path L 2 for
【００１９】前記ダクト本体８の底壁の中央部には上側
に凸の比較的幅広の***部１１が一体に形成されてお
り、この***部１１に対応してダクト本体８の底壁下面
に形成される、根太長手方向に沿って延びる係合溝部８
ｂには根太Ｎの上部が遊隙を存して嵌合される。また根
太Ｎの上面と係合溝部８ｂ底面との間には、前記固定バ
ンド５と略同じ厚みのゴム等のクッション材よりなるシ
ート板１２が介装される。前記***部１１の上方から
は、ダクト本体８を根太Ｎに固定するための取付ボルト
Ｂ1 が該***部１１及びシート板１２を貫通して根太Ｎ
の上壁に螺挿されている。A relatively wide raised portion 11 which is convex upward is integrally formed at the center of the bottom wall of the duct body 8, and the lower surface of the bottom wall of the duct body 8 is formed corresponding to the raised portion 11. Engagement groove 8 formed along the joist longitudinal direction
The upper part of the joist N is fitted in b with some play. Between the upper surface of the joist N and the bottom surface of the engagement groove portion 8b, a seat plate 12 made of a cushion material such as rubber having a thickness substantially the same as that of the fixing band 5 is interposed. From above the raised portion 11, a mounting bolt B 1 for fixing the duct body 8 to the joist N penetrates the raised portion 11 and the seat plate 12 and the joist N
It is screwed into the upper wall of the.
【００２０】前記ダクト本体８の左右両側下部には、そ
の外側方に略水平に延出する左右一対の張出部１３が一
体に連設されており、その各張出部１３の上面には、そ
の上面に接着したシート状クッション材１４を介して、
該ダクト本体８と隣接する床パネルＰの側縁部が載置支
持される。またその各張出部１３の下面にもシート状ク
ッション材１５が接着され、更にその下部クッション材
１５の両側において各張出部１３の下面には互いに平行
な一対の係止突起部１３ｉ，１３ｏが一体に形成され、
その両係止突起部１３ｉ，１３ｏは互いに協働して本発
明の係合部を構成し、次に説明する補助脚Ｓの上端部と
係合し得るようになっている。A pair of left and right overhanging portions 13 extending substantially horizontally outwardly is integrally connected to the lower left and right sides of the duct main body 8, and the upper surface of each of the overhanging portions 13 is integrally formed. , Through the sheet-shaped cushioning material 14 adhered to its upper surface,
A side edge portion of the floor panel P adjacent to the duct body 8 is placed and supported. A sheet-like cushion material 15 is also adhered to the lower surface of each of the overhanging portions 13, and a pair of locking projections 13i and 13o parallel to the lower surface of each of the overhanging portions 13 on both sides of the lower cushion material 15. Are integrally formed,
The two locking projections 13i and 13o cooperate with each other to form an engaging portion of the present invention, and can engage with the upper end portion of the auxiliary leg S described next.
【００２１】前記補助脚Ｓは、配線ダクトＤの長手方向
に間隔をおいて、しかも根太Ｎを挟んで左右一対ずつ配
設される。その各補助脚Ｓは、床Ｆのベース面ｆB 上に
固着されるベース板１６と、このベース板１６上に一体
的に立設される中空円筒状の下部脚１７と、その下部脚
１７内に上方より挿入されるネジ軸部１８ａを有する上
部脚１８とより構成され、その上部脚１８のネジ軸部１
８ａ上端には、前記張出部１３下面に係合し得る偏平頭
部１８ｂが一体に連設される。更にそのネジ軸部１８ａ
には、下端が下部脚１７の上端に当接支持される調整ナ
ット１９が螺合されており、そのナット１９を回動操作
すれば、該ナット１９とネジ軸部１８ａとの軸方向相対
位置が変化して上部脚１８が下部脚１７に対し昇降し、
これにより上部脚１８の支持高さを任意に調節すること
ができる。The auxiliary legs S are arranged in pairs on the left and right sides at intervals in the longitudinal direction of the wiring duct D and with the joist N interposed therebetween. Each of the auxiliary legs S includes a base plate 16 fixed on a base surface f B of the floor F, a hollow cylindrical lower leg 17 integrally provided on the base plate 16, and a lower leg 17 thereof. The upper leg 18 has a screw shaft portion 18a which is inserted from above into the screw shaft portion 1 of the upper leg 18.
A flat head portion 18b that can be engaged with the lower surface of the overhanging portion 13 is integrally connected to the upper end of 8a. Further, the screw shaft portion 18a
An adjusting nut 19 whose lower end abuts against and is supported by the upper end of the lower leg 17 is screwed into the shaft, and when the nut 19 is rotated, the relative position of the nut 19 and the screw shaft portion 18a in the axial direction. Changes and the upper leg 18 moves up and down with respect to the lower leg 17,
Thereby, the support height of the upper leg 18 can be adjusted arbitrarily.
【００２２】前記調整ナット１９の周壁には、該ナット
１９のネジ軸部１８ａに対する回り止めのためのネジ棒
２０が横向きに螺挿され、そのネジ棒２０の内端は、ネ
ジ軸部１８ａ外周に圧接して調整ナット１９のネジ軸部
１８ａに対する螺合位置を固定する。またネジ棒２０の
外端には、工具を係合させるための係合孔２０ａが凹設
される。On the peripheral wall of the adjusting nut 19, a screw rod 20 for laterally locking the screw shaft portion 18a of the nut 19 is laterally screwed, and the inner end of the screw rod 20 has an outer periphery of the screw shaft portion 18a. Is pressed to fix the screwing position of the adjusting nut 19 to the screw shaft portion 18a. Further, an engaging hole 20a for engaging a tool is provided in the outer end of the screw rod 20.
【００２３】更に下部脚１７の上部周壁には、上部脚１
８の下部脚１７に対する調節高さを固定するための高さ
固定ボルトＢ2 が横向きに螺挿され、そのボルトＢ2 の
先端は、上部脚１８のネジ軸部１８ａ外周に圧接して上
部脚１８の支持高さを固定する。またこの高さ固定ボル
トＢ2 の軸部にはロックナット２１が螺合され、このナ
ット２１の締付けにより、高さ固定ボルトＢ2 が振動等
で緩むのを確実に阻止することができる。Further, on the upper peripheral wall of the lower leg 17, the upper leg 1
8, a height fixing bolt B 2 for fixing the adjusting height to the lower leg 17 is laterally inserted, and the tip of the bolt B 2 is brought into pressure contact with the outer circumference of the screw shaft portion 18a of the upper leg 18 and the upper leg 18 is pressed. The support height of 18 is fixed. Also this is the shaft of the height fixing bolt B 2 engaged locking nut 21 is threaded, by tightening the nut 21, the height fixing bolt B 2 can be reliably prevented from loosening by vibration.
【００２４】前記蓋９は、ダクト本体８の開口部８ａを
覆うように上方より見て長方形に形成され、その左右両
側縁部は、ダクト本体８の左右両側壁内面に形成された
係止段部８ｃに嵌合係止されており、また該蓋９の下面
には、ダクト本体８の左右両側壁の内面と弾力的に係合
し得る係止腕部９ａが一体的に突設される。また蓋９の
幅方向中央部はダクト本体８の隔壁１０上端部に、該上
端部に係止されてその長手方向に延びる弾性消音材２２
を介して支持される。The lid 9 is formed in a rectangular shape as viewed from above so as to cover the opening 8a of the duct body 8, and its left and right side edge portions are locking steps formed on the inner surfaces of the left and right side walls of the duct body 8. A locking arm portion 9a, which is fitted and locked to the portion 8c, and which is elastically engageable with the inner surfaces of the left and right side walls of the duct body 8 is integrally provided on the lower surface of the lid 9. . The central portion of the lid 9 in the width direction is attached to the upper end of the partition wall 10 of the duct body 8 and is elastically silenced 22 which is locked to the upper end and extends in the longitudinal direction.
Supported through.
【００２５】また図５に示すように前記交差配線ダクト
Ｄ′は、互いに交差する配線ダクトＤの相異なる配線路
（即ち、一方の配線ダクトの第１配線路Ｌ1 と他方の配
線ダクトの第２配線路Ｌ2 ；一方の配線ダクトの第２配
線路Ｌ2 と他方の配線ダクトの第１配線路Ｌ1 ）相互を
立体交差させるための立体交差路２３を中央部に有す
る、上方より見て十字状の交差ダクト本体８′と、その
交差ダクト本体８′の上面開口部８ａ′を塞ぐ同じく十
字状の交差蓋９′とを備えている。Further, as shown in FIG. 5, the intersecting wiring duct D'has different wiring paths of the wiring ducts D intersecting each other (that is, the first wiring path L 1 of one wiring duct and the first wiring path L 1 of the other wiring duct). 2 wiring path L 2 ; second wiring path L 2 of one wiring duct and first wiring path L 1 of the other wiring duct) Having a crossover path 23 at the center for crossing each other, seen from above A cross-shaped cross duct body 8 ', and a cross-shaped cross lid 9'which also closes the upper opening 8a' of the cross duct body 8 '.
【００２６】前記交差ダクト本体８′は、その中央の立
体交差路２３より四方に延びる延出ダクト部２４を一体
に有している。その各延出ダクト部２４の横断面形状
は、基本的に前記配線ダクトＤのダクト本体８のそれと
同じであり、その底壁中央には、第１及び第２配線路Ｌ
1 ，Ｌ2 を区画するための隔壁１０′が立設される。そ
の各延出ダクト部２４の左右の張出部１３′，１３′に
は、前述の配線ダクトＤの支持に用いられた補助脚Ｓと
同様の構成を有する左右一対の補助脚Ｓの上端部（即ち
偏平頭部１８ｂ）が係合され、これにより各延出ダクト
部２４が補助脚Ｓを介してベース面ｆB 上に支持され
る。また交差ダクト本体８′の中央部底壁は、床ベース
面ｆB 上に立設された高さ調節可能な支柱２６の上端部
に消音用ゴムプレート２５を挟んで当接支持されてい
る。The intersecting duct body 8'has an integrally formed extending duct portion 24 extending in four directions from the three-dimensional intersection 23 at the center thereof. The cross-sectional shape of each of the extending duct portions 24 is basically the same as that of the duct body 8 of the wiring duct D, and the first and second wiring paths L are provided at the center of the bottom wall.
1, L 2 partition wall 10 for partitioning the 'is erected. The left and right overhanging portions 13 ′ and 13 ′ of the respective extension duct portions 24 have upper and lower end portions of a pair of left and right auxiliary legs S having the same configuration as the auxiliary legs S used to support the wiring duct D described above. (That is, the flat head portion 18b) is engaged, and thereby each extension duct portion 24 is supported on the base surface f B via the auxiliary leg S. The central bottom wall of the cross duct body 8 ', across the sound-absorbing rubber plate 25 on the upper end of the bed base surface f B height erected on adjustable posts 26 is abutting the support.
【００２７】配線ダクトＤの上面ｆD 、即ちダクト本体
８左右両側壁および蓋９の各上面は、床パネルＰの上面
ｆP や、交差配線ダクトＤ′の上面と面一に形成されて
いて、平坦な床面を構成している。また、それら配線ダ
クトＤ，Ｄ′及び床パネルＰの各上面には、カーペッ
ト、コルク材、Ｐタイル等の床仕上げ材Ｃが接合されて
いる。The upper surface f D of the wiring duct D, i.e. the upper surface of the duct main body 8 left and right side walls and the lid 9, and the upper surface f P of the floor panel P, be formed on the upper surface flush with the crossing wiring duct D ' , Constitutes a flat floor surface. A floor finish material C such as carpet, cork material or P tile is joined to the upper surfaces of the wiring ducts D and D ′ and the floor panel P.
【００２８】次に前記実施例の作用について説明する。
床Ｆのかさあげ工事に際しては、そのベース面ｆB 上に
支持脚ユニットＵを用いて前述のような手順で複数の根
太Ｎを床面に沿って縦横に且つ所定の高さ位置に設備す
る。Next, the operation of the above embodiment will be described.
When raising the floor F, a plurality of joists N are installed on the base surface f B of the floor leg F along the floor surface in the vertical and horizontal directions and at predetermined height positions by the above-described procedure. .
【００２９】次に一部の根太Ｎ上に複数の配線ダクトＤ
を縦列状態で載置固定するための作業に移る。この作業
に際しては、先ず、その根太Ｎ上に各配線ダクトＤのダ
クト本体８を、それの底壁の係合溝部８ｂを根太Ｎ上部
に嵌合させるように載置し、次いで取付ボルトＢ1 によ
りダクト本体８を根太Ｎに固定する。しかる後に、補助
脚Ｓの上端（即ち上部脚１７上端の偏平頭部１８ｂ）を
ダクト本体８両側の張出部１３下面の係合部（即ち両係
止突起部１３ｉ，１３ｏ）に係合させた状態で補助脚Ｓ
における上部脚１８の支持高さを調整固定し、そのベー
ス板１６を接着剤又はアンカーにより床Ｆのベース面ｆ
B 上に固定する。Next, a plurality of wiring ducts D are provided on some joists N.
Move to the work for mounting and fixing in a column. In this work, first, the duct main body 8 of each wiring duct D is placed on the joist N so that the engaging groove portion 8b of the bottom wall of the duct main body 8 is fitted to the upper part of the joist N, and then the mounting bolt B 1 The duct body 8 is fixed to the joist N by. After that, the upper end of the auxiliary leg S (that is, the flat head 18b at the upper end of the upper leg 17) is engaged with the engaging portion (that is, both locking protrusions 13i, 13o) on the lower surface of the overhanging portion 13 on both sides of the duct body 8. Auxiliary leg S
The support height of the upper leg 18 at the base is adjusted and fixed, and the base plate 16 is fixed to the base surface f of the floor F by an adhesive or an anchor.
Fix on B.
【００３０】このような作業を各配線ダクトＤについて
順次に行い、隣接する配線ダクトＤの端部相互間を突き
合わせて接続する。配線ダクトＤの交差部においては、
前述の交差配線ダクトＤ′の中央部底壁を前記支柱２６
を以て、またその中央部より四方に延びる各延出ダクト
部２４の左右両側張出部１３′，１３′を前記補助脚Ｓ
を以てそれぞれ支持させると共に、その各延出ダクト部
２４の端部を対応する配線ダクトＤの端部に突き合わせ
て接続する。The above work is sequentially performed for each wiring duct D, and the ends of the adjacent wiring ducts D are butted against each other and connected. At the intersection of the wiring duct D,
The central bottom wall of the above-mentioned cross wiring duct D'is attached to the pillar 26.
And the left and right laterally extending portions 13 'and 13' of the respective extending duct portions 24 extending in four directions from the central portion thereof are provided with the auxiliary legs S.
And the end portions of the respective extension duct portions 24 are abutted against the end portions of the corresponding wiring duct D to be connected.
【００３１】このようにして配線ダクトＤ及び交差配線
ダクトＤ′をセットした後に、床パネルＰを順次に敷き
詰めてゆく。この場合、配線ダクトＤ又は交差配線ダク
トＤ′に隣接する床パネルＰは、その一側縁部が図２に
示す如く配線ダクトＤ、Ｄ′の左右張出部１３，１３′
上にそれぞれ載置支持される一方、その他側縁部が図４
に示す如く根太Ｎ上に載置固定される。また、その他の
床パネルＰは、平行する一対の根太Ｎ上に左右両側縁部
が図４に示す如く載置固定される。かくして床パネルＰ
並びに各配線ダクトＤ，Ｄ′の上面により床面を形成し
てから、その上に床仕上げ材Ｃを貼り付ける。尚、その
床仕上げ材Ｃは、床パネルＰや配線ダクトＤ，Ｄ′の蓋
９，９′の各上面に予め個別に貼り付けておいてもよ
い。After the wiring duct D and the cross wiring duct D'are set in this manner, the floor panels P are sequentially laid. In this case, the floor panel P adjacent to the wiring duct D or the cross wiring duct D'has one side edge portion thereof as shown in FIG.
Each of them is placed and supported on the other side, while the other side edges are shown in FIG.
It is placed and fixed on the joist N as shown in FIG. In addition, the other floor panels P are placed and fixed on the pair of parallel joists N at the left and right side edges as shown in FIG. Thus floor panel P
A floor surface is formed by the upper surfaces of the wiring ducts D and D ', and the floor finishing material C is attached on the floor surface. The floor finishing material C may be attached individually to the upper surfaces of the floor panel P and the lids 9 and 9'of the wiring ducts D and D'in advance.
【００３２】上記のように上面が蓋９で開閉可能な配線
ダクトＤを用いて床下の配線路Ｌ1，Ｌ2 を構築すれ
ば、配線が床面上に露出せず美観や安全性の面で有利で
あることは勿論、追加配線やメンテナンス等の際には、
開閉が容易なダクト蓋９，９′を開いて配線作業や保守
点検作業を容易に行うことができる。しかも斯かる配線
ダクトＤを根太Ｎ上に載置固定するようにしているた
め、既存建物に配線ダクトを新設する場合あるいはダク
トの増設や線路変更等を行なうような場合にでも、根太
Ｎ、配線ダクトＤ，Ｄ′及び床パネルＰを適宜敷き並べ
る所謂かさあげ工事で簡単に対応でき、従って作業時間
の短縮化とコスト節減が達成される。また床パネル支持
のために従来普通に設けられる根太Ｎが配線ダクトＤの
支持手段に兼用されることで、それだけダクト支持構造
の簡素化が図られる。If the wiring paths L 1 and L 2 under the floor are constructed by using the wiring duct D whose upper surface can be opened and closed by the lid 9 as described above, the wiring is not exposed on the floor surface, and the appearance and safety are improved. Of course, in the case of additional wiring or maintenance,
Wiring work and maintenance and inspection work can be easily performed by opening the duct lids 9 and 9'which can be easily opened and closed. Moreover, since the wiring duct D is mounted and fixed on the joist N, even when the wiring duct is newly installed in the existing building or when the duct is added or the line is changed, the joist N and the wiring are This can be easily dealt with by so-called raising work in which the ducts D, D'and the floor panel P are appropriately laid out, so that the working time and cost can be reduced. Moreover, since the joists N which are conventionally provided for supporting the floor panel are also used as the supporting means of the wiring duct D, the duct supporting structure can be simplified accordingly.
【００３３】また特にダクト本体８の下面に凹設した係
合溝部８ｂを根太Ｎの上部に係合させることによって、
配線ダクトＤと根太Ｎとの相対的な位置決めが容易であ
り、しかも配線ダクトＤをそれの根太対応部分以外の部
分を極力深底に形成できるため配線ダクトＤの有効容量
を極力広く確保することができる。Further, in particular, by engaging the engaging groove portion 8b recessed in the lower surface of the duct body 8 with the upper portion of the joist N,
Since the relative positioning of the wiring duct D and the joist N is easy, and since the wiring duct D can be formed as deep as possible except for the joist corresponding portion thereof, the effective capacity of the wiring duct D should be secured as wide as possible. You can
【００３４】以上、本発明の一実施例について説明した
が、本発明はその実施例に限定されることなく、本発明
の範囲内で種々の設計変更を行うことができる。例えば
配線ダクト内に形成される配線路は１つでも３つ以上で
もよく、その配線路の一部に必要に応じて可動コンセン
ト等の配線接続機器を設置してもよい。また配線ダクト
の蓋には必要に応じて配線路内の配線を室内に取り出す
ための小蓋付き通線口や可動コンセント等を設けてもよ
い。Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various design changes can be made within the scope of the present invention. For example, the number of wiring paths formed in the wiring duct may be one or three or more, and a wiring connection device such as a movable outlet may be installed in a part of the wiring path if necessary. If necessary, the lid of the wiring duct may be provided with a passage opening with a small lid or a movable outlet for taking out the wiring in the wiring path into the room.
【００３５】[0035]
【発明の効果】以上のように各請求項の発明によれば、
上面が蓋で開閉可能な配線ダクトを用いて床下の配線路
を構築するようにしているので、配線が床面上に露出せ
ず美観や安全性の面で有利であることは勿論、追加配線
やメンテナンス等の際には、開閉が容易なダクト蓋を開
いて配線作業や保守点検作業を容易に行なうことができ
る。しかも斯かる配線ダクトを根太上に載置固定するよ
うにしているので、既存建物に配線ダクトを新設する場
合あるいはダクトの増設や線路変更等を行なうような場
合に、根太、配線ダクト及び床パネルを敷き並べる所謂
かさあげ工事で簡単に対応でき、従って作業時間の短縮
化とコスト節減に大いに寄与し得る。また床パネル支持
のために従来普通に設けられる根太が配線ダクトの支持
手段に兼用されることで、それだけダクト支持構造の簡
素化を図ることができる。As described above, according to the invention of each claim,
Since the wiring path under the floor is constructed using a wiring duct whose top surface can be opened and closed with a lid, the wiring is not exposed on the floor surface, which is advantageous in terms of aesthetics and safety, as well as additional wiring. For maintenance or the like, the duct lid which can be easily opened and closed can be opened to easily perform the wiring work and the maintenance and inspection work. Moreover, since the wiring duct is placed and fixed on the joist, the joist, the wiring duct, and the floor panel can be installed when the wiring duct is newly installed in the existing building or when the duct is added or the line is changed. This can be easily dealt with by so-called raising work in which the tiles are lined up, which can greatly contribute to the reduction of working time and cost reduction. Further, since the joists conventionally provided for supporting the floor panel are also used as the supporting means of the wiring duct, the duct supporting structure can be simplified accordingly.
【００３６】また特に請求項２の発明によれば、ダクト
本体の下面に凹設した係合溝部を根太の上部に係合させ
ることによって、配線ダクトと根太との相対的な位置決
めを容易に行うことができ、しかも配線ダクトを根太対
応部分を除いて極力深底に形成できてその有効容積の増
大に寄与し得る。According to the second aspect of the invention, the relative positioning of the wiring duct and the joist can be easily performed by engaging the engagement groove formed in the lower surface of the duct body with the upper part of the joist. Further, the wiring duct can be formed as deep as possible except the portion corresponding to the joists, which can contribute to the increase of the effective volume.
【００３７】更に請求項３の発明によれば、ダクト本体
の両側部に、その外側方に延出する張出部を一体に連設
し、その張出部の上面に、該ダクト本体と隣接する床パ
ネルの側縁部を支持し、またその張出部の下面には、ベ
ース面上に立設される補助脚の上端部と係合し得る係合
部を一体に形成したので、配線ダクトに隣接する床パネ
ルを該配線ダクトに直接支持させることができ、しかも
その支持強度を補助脚によって高めることができる。ま
たその補助脚の位置決めを上記張出部下面の係合部と補
助脚上端部との係合によって容易に行なうことができる
から、補助脚の設置作業の能率向上に寄与することがで
きる。According to the third aspect of the present invention, the bulging portions extending outward are integrally connected to both side portions of the duct body, and the upper surface of the bulging portion is adjacent to the duct body. The side edge of the floor panel to be supported is formed integrally with the lower surface of the overhanging portion, which is engageable with the upper end of the auxiliary leg that is erected on the base surface. The floor panel adjacent to the duct can be directly supported by the wiring duct, and its supporting strength can be increased by the auxiliary legs. Further, since the auxiliary leg can be easily positioned by engaging the engaging portion on the lower surface of the overhanging portion with the upper end of the auxiliary leg, it is possible to contribute to improving the efficiency of the installation work of the auxiliary leg.
【図１】本発明を実施した床の、床パネルを一部取り外
した状態を示す概略全体平面図FIG. 1 is a schematic overall plan view showing a state in which a floor panel is partially removed, of a floor according to the present invention.
【図２】図１の２−２矢視拡大断面図FIG. 2 is an enlarged sectional view taken along the line 2-2 of FIG.
【図３】根太および配線ダクトの支持構造を示す要部拡
大斜視図FIG. 3 is an enlarged perspective view of a main part showing a supporting structure for joists and wiring ducts.
【図４】図１の４−４矢視拡大断面図FIG. 4 is an enlarged sectional view taken along arrow 4-4 of FIG.
【図５】十字状交差配線ダクトの要部拡大斜視図FIG. 5 is an enlarged perspective view of a main part of a cross-shaped cross wiring duct.
Ｄ………………配線ダクト Ｆ………………床 Ｌ1 ，Ｌ2 ……配線路としての第１，第２配線路 Ｎ………………根太 Ｓ………………補助脚 ｆB ……………ベース面 ｆD ……………配線ダクトの上面 ｆP ……………床パネルの上面 ８………………ダクト本体 ８ａ……………開口部 ８ｂ……………係合溝部 ９………………蓋 １３……………張出部 １３ｉ…………係合部としての係止突起部 １３ｏ…………係合部としての係止突起部 １８ｂ…………上端部としての偏平頭部D ……………… Wiring duct F ……………… Floor L 1 , L 2 …… First and second wiring paths as wiring path N ……………… Joist S ……………… Auxiliary leg f B ………… Base surface f D ……………… Top of wiring duct f P ……………… Top of floor panel 8 ……………… Duct body 8a ………… Opening 8b ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… Locking protrusion 18b ... Flat head as the upper end
Claims (3)
を配設し、それらの根太（Ｎ）上に複数の床パネル
（Ｐ）を支持するようにした床において、 上面に開口部（８ａ）を有するダクト本体（８）と該開
口部（８ａ）を開閉可能に塞ぐ蓋（９）とよりなる配線
ダクト（Ｄ）を根太（Ｎ）上に載置固定すると共に、そ
の配線ダクト（Ｄ）の上面（ｆD ）を、該ダクト（Ｄ）
に隣接させた床パネル（Ｐ）の上面（ｆP ）と面一にな
るように形成したことを特徴とする、床における配線ダ
クト支持構造。1. A plurality of joists (N) on the base surface (f B ).
In which a plurality of floor panels (P) are supported on the joists (N), a duct body (8) having an opening (8a) on the upper surface and the opening (8a) A wiring duct (D) consisting of a lid (9) that opens and closes is fixed on the joist (N), and the upper surface (f D ) of the wiring duct (D) is fixed to the duct (D).
Top (f P) and characterized by being formed so as to flush cable duct support structure in the bed of the floor panel (P) which are adjacent to.
太（Ｎ）の上部と係合させるべく該根太（Ｎ）の長手方
向に沿って延びる係合溝部（８ｂ）を形成したことを特
徴とする、請求項１に記載の床における配線ダクト支持
構造。2. An engagement groove (8b) extending along the longitudinal direction of the joist (N) is formed on the lower surface of the duct body (8) so as to engage with the upper part of the joist (N). The wiring duct support structure for a floor according to claim 1, wherein the wiring duct support structure is for a floor.
外側方に延出する張出部（１３）を一体に連設し、その
張出部（１３）の上面に、該ダクト本体（８）と隣接す
る床パネル（Ｐ）の側縁部を支持し、またその張出部
（１３）の下面には、ベース面（ｆB ）上に立設される
補助脚（Ｓ）の上端部（１８ｂ）と係合し得る係合部
（１３ｉ，１３ｏ）を一体に形成したことを特徴とす
る、請求項１又は２に記載の床における配線ダクト支持
構造。3. The duct main body (8) is integrally connected to both sides of the duct main body (8) so as to extend outward, and the duct main body is provided on the upper surface of the protrusion (13). The side edge of the floor panel (P) adjacent to (8) is supported, and on the lower surface of the overhanging portion (13) of the auxiliary leg (S) which is erected on the base surface (f B ). The wiring duct support structure for a floor according to claim 1 or 2, wherein an engaging portion (13i, 13o) capable of engaging with the upper end portion (18b) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6194371A JP2710018B2 (en) | 1994-08-18 | 1994-08-18 | Wiring duct support structure on floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6194371A JP2710018B2 (en) | 1994-08-18 | 1994-08-18 | Wiring duct support structure on floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0865863A true JPH0865863A (en) | 1996-03-08 |
| JP2710018B2 JP2710018B2 (en) | 1998-02-10 |
Family
ID=16323485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6194371A Expired - Lifetime JP2710018B2 (en) | 1994-08-18 | 1994-08-18 | Wiring duct support structure on floor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2710018B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011045865A1 (en) * | 2009-10-16 | 2011-04-21 | 富士通株式会社 | Cable duct, electronic apparatus system, cable duct system, and method of replacing housing in electronic apparatus system |
| JP2019078022A (en) * | 2017-10-22 | 2019-05-23 | 渡邉 啓祐 | Lighting conductor and curing device for bird injury wire and the like |
| KR102434464B1 (en) * | 2021-12-08 | 2022-08-23 | 주식회사 행림종합건축사사무소 | The building structure electric cable installation floor duct facility |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5082159U (en) * | 1973-11-28 | 1975-07-15 | ||
| JPS52150590A (en) * | 1976-06-08 | 1977-12-14 | Matsushita Electric Works Ltd | Indoor wiring device |
| JPS60195261A (en) * | 1984-03-15 | 1985-10-03 | 大成建設株式会社 | Floor structure having plural systems of wiring cable mounted therein |
| JPS62196007A (en) * | 1986-02-24 | 1987-08-29 | 株式会社 日本ピツト | Wiring duct |
| JPS6429565A (en) * | 1987-07-25 | 1989-01-31 | Oyo Kikaku Kk | Wiring floor foundation |
-
1994
- 1994-08-18 JP JP6194371A patent/JP2710018B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5082159U (en) * | 1973-11-28 | 1975-07-15 | ||
| JPS52150590A (en) * | 1976-06-08 | 1977-12-14 | Matsushita Electric Works Ltd | Indoor wiring device |
| JPS60195261A (en) * | 1984-03-15 | 1985-10-03 | 大成建設株式会社 | Floor structure having plural systems of wiring cable mounted therein |
| JPS62196007A (en) * | 1986-02-24 | 1987-08-29 | 株式会社 日本ピツト | Wiring duct |
| JPS6429565A (en) * | 1987-07-25 | 1989-01-31 | Oyo Kikaku Kk | Wiring floor foundation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011045865A1 (en) * | 2009-10-16 | 2011-04-21 | 富士通株式会社 | Cable duct, electronic apparatus system, cable duct system, and method of replacing housing in electronic apparatus system |
| JP2019078022A (en) * | 2017-10-22 | 2019-05-23 | 渡邉 啓祐 | Lighting conductor and curing device for bird injury wire and the like |
| KR102434464B1 (en) * | 2021-12-08 | 2022-08-23 | 주식회사 행림종합건축사사무소 | The building structure electric cable installation floor duct facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2710018B2 (en) | 1998-02-10 |
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