JP7606187B2

JP7606187B2 - Ceiling material

Info

Publication number: JP7606187B2
Application number: JP2020218061A
Authority: JP
Inventors: 啓介高橋
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2024-12-25
Anticipated expiration: 2040-12-25
Also published as: JP2022102968A

Description

本発明は、天井材に関するものであり、詳しくは、大型施設のホール、エントランスホール、廊下などの天井に適用する天井材であって、薄く且つ軽量な天井板を一層自由に使用できるようにした天井材に関するものである。 The present invention relates to ceiling materials, and more specifically to ceiling materials for use in the ceilings of halls, entrance halls, corridors, etc. in large facilities, which allow for greater freedom in the use of thin and lightweight ceiling panels.

ビル等の大型施設の天井としては、少ない部材で且つ迅速に施工可能なシステム天井が普及している。システム天井は、通常、天井スラブに取り付けられた吊りボルトで多数の野縁受けを水平に吊り下げ、鍔付きの型鋼などからなる多数の野縁を野縁受けに直交させて取り付け、野縁の鍔にパネル状の天井板を引っ掛けることにより構成される。 System ceilings, which require fewer components and can be constructed quickly, are widely used for ceilings in large facilities such as buildings. System ceilings are usually constructed by suspending multiple rafters horizontally with hanging bolts attached to the ceiling slab, attaching multiple rafters made of steel beams with flanges perpendicular to the rafters, and hanging panel-shaped ceiling panels on the flanges of the rafters.

例えば、野縁受けとして機能するレースウェイに対し、ハット型鋼で予め格子状に組んだ天井グリッドモジュールを取り付け、矩形のプラスターボードを天井グリッドモジュールの格子部分に落とし込んで構成されたシステム天井が提案されている（特許文献１）。また、ロックウールからなる矩形の天井材（天井板）を野縁に直接ビス止めして構成され、かつ、天井板の繊維方向を野縁の長さ方向と直交させることにより、天井板の撓みを抑制するようにした天井構造なども提案されている（特許文献２）。 For example, a system ceiling has been proposed in which a ceiling grid module made of hat-shaped steel and assembled in a lattice shape is attached to a raceway that functions as a siding support, and rectangular plasterboard is dropped into the lattice portion of the ceiling grid module (Patent Document 1). Also proposed is a ceiling structure in which rectangular ceiling material (ceiling panels) made of rock wool is screwed directly to the siding, and the fiber direction of the ceiling panels is perpendicular to the length direction of the siding to suppress deflection of the ceiling panels (Patent Document 2).

特開平１１－１８１９４８号公報Japanese Patent Application Publication No. 11-181948 特開２０１８－１５０７２３号公報JP 2018-150723 A

ところで、上記のようなシステム天井は、施工性の向上を企図したものであるが、天井板の取り付け構造および安全性確保の観点から、より軽量な天井板を使用することが求められる。しかしながら、天井板は、軽量化を図るほどその厚さを薄くする必要がある反面、厚さが薄くなるほど撓みの問題を惹起するため、実際、剛性が損なわれない程度の厚さを確保し、かつ、各１枚の面積を小さく設定しており、更に、天井板の材料も選択範囲が狭いという問題がある。また、その結果、意匠デザインの自由度が低いという問題も生じている。 Although the above-mentioned system ceiling is intended to improve workability, from the viewpoint of the ceiling panel mounting structure and ensuring safety, it is required to use lighter ceiling panels. However, while the thinner the ceiling panel, the lighter it is, the more likely it is that it will flex. Therefore, in practice, a thickness that does not impair rigidity is ensured, and the area of each panel is set small, and there is also a problem that the range of materials to be used for the ceiling panel is narrow. As a result, there is also the problem of limited freedom in design.

本発明は、上記の実情に鑑みてなされたものであり、その目的は、ビル等の大型施設の天井に適用する天井材であって、厚さの一層薄い天井板を使用することができ、また、面積の大きな天井板を使用することができ、より自由な意匠デザインが可能となる天井材を提供することにある。 The present invention was made in consideration of the above-mentioned circumstances, and its purpose is to provide a ceiling material for use in ceilings of large facilities such as buildings, which allows for the use of thinner ceiling panels and also allows for the use of larger ceiling panels, allowing for greater freedom in design.

上記の課題を解決するため、本発明においては、天井板の天井下側の面を支持する支持部と、天井板に設けた貫通穴に貫通させる貫通部とを有する貫通支持材を使用することにより、天井下地構造に対して天井板を吊り下げた状態で支持すると共に、貫通支持材の複数の貫通部を構造的に連結する連結手段を設けることにより、天井板に対する補剛構造を構成し、天井板の撓みを抑制するようにした。 In order to solve the above problems, in this invention, a penetrating support material is used that has a support part that supports the underside of the ceiling of the ceiling board and a through part that passes through a through hole provided in the ceiling board, thereby supporting the ceiling board in a suspended state relative to the ceiling base structure, and by providing a connecting means that structurally connects the multiple through parts of the penetrating support material, a stiffening structure is formed for the ceiling board, and deflection of the ceiling board is suppressed.

すなわち、本発明の要旨は、天井下地構造に取り付けられて天井を構成する天井材であって、天井の意匠を構成する天井板と、当該天井板に天井下側から貫通させて前記天井下地構造に前記天井板を支持させる複数の貫通支持材とから構成され、前記各貫通支持材は、前記天井板の天井下側の面を支持する支持部と、当該支持部の上部に形成された貫通部とを有し、前記天井板には、前記貫通支持材の前記支持部は通過せず且つ前記貫通部が通過する複数の貫通穴が設けられており、かつ、前記貫通支持材には、複数の前記貫通部を構造的に連結する連結手段が備えられていることを特徴とする天井材に存する。 In other words, the gist of the present invention is a ceiling material that is attached to a ceiling base structure to form a ceiling, and is composed of a ceiling board that forms the design of the ceiling, and a number of penetrating support members that penetrate the ceiling board from the underside of the ceiling and support the ceiling board on the ceiling base structure, each of the penetrating support members has a support part that supports the underside of the ceiling of the ceiling board and a penetrating part formed on the upper part of the support part, the ceiling board is provided with a number of through holes through which the support parts of the penetrating support members do not pass but the penetrating parts pass, and the penetrating support members are provided with connecting means that structurally connect the multiple penetrating parts.

本発明に係る天井材によれば、天井板を吊り下げた状態で支持した際、貫通支持材の複数の貫通部を構造的に連結する連結手段が天井板の補剛構造を構成し、天井板の撓みを抑制するため、厚さの一層薄い天井板を使用することができ、また、一層大きな面積の天井板を使用することができる。従って、天井板として各種の材料を使用でき、そして、より自由な意匠デザインが可能になる。 When the ceiling material of the present invention supports a ceiling panel in a suspended state, the connecting means that structurally connects the multiple penetrations of the penetrating support material forms a stiffening structure for the ceiling panel, suppressing deflection of the ceiling panel, allowing the use of thinner ceiling panels and ceiling panels with a larger surface area. This allows the use of various materials for the ceiling panel, and allows for greater freedom in design.

本発明に係る天井材の一実施形態の主要な構成を示す展開斜視図である。1 is an exploded perspective view showing the main configuration of one embodiment of a ceiling material according to the present invention; 図１の天井材による天井の施工状態を一部破断して示す斜視図である。FIG. 2 is a partially cutaway perspective view showing a ceiling installed using the ceiling material of FIG. 1. 本発明に係る天井材の他の実施形態の主要な構成を示す展開斜視図である。FIG. 2 is an exploded perspective view showing the main configuration of another embodiment of a ceiling material according to the present invention. 図３の天井材による天井の施工状態を一部破断して示す斜視図である。FIG. 4 is a partially cutaway perspective view showing a ceiling installed using the ceiling material of FIG. 3. 図３の構造の天井材に使用される貫通支持材の一例を示す斜視図である。FIG. 4 is a perspective view showing an example of a penetrating support material used in the ceiling material of the structure of FIG. 3. 天井材に使用される貫通支持材の他の例を示す斜視図である。13 is a perspective view showing another example of a penetrating support material used in a ceiling material. FIG. 天井材に使用される貫通支持材の更に他の例を示す斜視図である。13 is a perspective view showing yet another example of a penetrating support material used in a ceiling material. FIG. 図３の天井材においてうねり形状の天井板を使用した例を天井下側から示す斜視図である。FIG. 4 is a perspective view showing an example in which a wavy ceiling panel is used in the ceiling material of FIG. 3, viewed from below the ceiling. 図８の天井材を天井裏側から示す斜視図である。9 is a perspective view showing the ceiling material of FIG. 8 from the underside of the ceiling.

本発明に係る天井材の実施形態を図面に基づいて説明する。本発明の天井材は、天井下地構造に取り付けられて天井を構成する天井材であり、ビル等の大型施設のホール、エントランスホール、廊下などに好適である。なお、以下の実施形態の説明においては、天井板よりも下方の室内側を天井下と称し、天井板よりも上方の天井下地側を天井裏と称する。 An embodiment of the ceiling material according to the present invention will be described with reference to the drawings. The ceiling material of the present invention is a ceiling material that is attached to a ceiling substrate structure to form a ceiling, and is suitable for halls, entrance halls, corridors, etc. in large facilities such as buildings. In the following description of the embodiment, the indoor side below the ceiling boards will be referred to as "under the ceiling," and the ceiling substrate side above the ceiling boards will be referred to as "above the ceiling."

本発明の天井材は、図１及び図３に示すように、天井の意匠を構成する天井板１と、当該天井板に天井下側から貫通させて天井下地構造に天井板１を支持させる複数の貫通支持材２とから主として構成される。通常、天井下地構造としては、建物の天井スラブ又は天井桟に取り付けられた複数の吊りボルト５と、これら吊りボルト５によって平行かつ並列に水平状態で吊り下げられた複数の野縁受け６と、野縁受け６の下面側に一定のピッチで架け渡された複数の野縁７とから構成された従来公知の下地構造が採用される。 As shown in Figures 1 and 3, the ceiling material of the present invention is mainly composed of a ceiling board 1 that constitutes the ceiling design, and multiple penetrating support members 2 that penetrate the ceiling board from the underside of the ceiling and support the ceiling board 1 on the ceiling base structure. Usually, the ceiling base structure is a conventionally known base structure composed of multiple suspension bolts 5 attached to the ceiling slab or ceiling truss of the building, multiple joist supports 6 suspended horizontally in parallel and aligned by these suspension bolts 5, and multiple joists 7 suspended at a fixed pitch on the underside of the joist supports 6.

天井板１は、各種の金属材料や樹脂材料あるいはロックウール等の無機材料からなる各種の難燃性の薄板で構成される。例えば、天井板１は、樹脂シートの両面に金属シートを積層した複合板で構成されてもよい。斯かる複合板において、金属シートとしては、アルミニウム又はアルミニウム合金、ステンレス、鉄、銅、チタン、錫、ニッケル等の金属から成る厚さ約０．２～０．５ｍｍ程度のシートが使用され、芯材の樹脂シートには、ポリエチレン、ポリプロピレン等のポリオレフィン、ポリ塩化ビニル、ポリアミド、ポリカーボネート、ポリスチレン、ポリヒドロキシルエーテル、酢酸ビニル等の熱可塑性樹脂から成る厚さ０．６～５．０ｍｍ程度のシートが使用される。上記のような複合板は、両面の金属シートが接着剤を介して樹脂シートに密着されており、溶融押出しされた合成樹脂シートの両面に例えばアルミニウムシートを重ね合わせ、回転ロールの間に通過させて製造される。斯かる複合板としては、例えば、三菱ケミカルインフラテック社製の「アルポリック」（商品名）として入手可能である。 The ceiling board 1 is made of various flame-retardant thin plates made of various metal materials, resin materials, or inorganic materials such as rock wool. For example, the ceiling board 1 may be made of a composite board in which metal sheets are laminated on both sides of a resin sheet. In such a composite board, the metal sheets are sheets of about 0.2 to 0.5 mm thick made of metals such as aluminum or aluminum alloys, stainless steel, iron, copper, titanium, tin, and nickel, and the core resin sheets are sheets of about 0.6 to 5.0 mm thick made of thermoplastic resins such as polyolefins such as polyethylene and polypropylene, polyvinyl chloride, polyamide, polycarbonate, polystyrene, polyhydroxyl ether, and vinyl acetate. The composite boards described above are manufactured by superimposing aluminum sheets, for example, on both sides of a melt-extruded synthetic resin sheet and passing it between rotating rolls. Such composite boards are available, for example, as "Alpolic" (product name) manufactured by Mitsubishi Chemical Infratec Co., Ltd.

また、天井板１は、通常、一辺の長さが４５０～６０００ｍｍ程度の長方形または正方形の平面形状に形成される。そして、天井板１には、当該天井板を支持する貫通支持材２を組み付けるため、後述する貫通支持材２の支持部２１は通過せず且つ貫通支持材２の貫通部２２だけが通過する複数の貫通穴１ｃが設けられている。なお、貫通穴１ｃの形状および配置は、貫通支持材２（図１，２では符号２Ａ、図３，４，５では符号２Ｂ、図６では符号２Ｃ、図７では符号２Ｄでそれぞれ示す）の形態に応じて設定される。 The ceiling board 1 is usually formed in a rectangular or square planar shape with a side length of about 450 to 6000 mm. The ceiling board 1 is provided with a number of through holes 1c through which the support parts 21 of the penetrating support material 2 described below do not pass and only the penetrating parts 22 of the penetrating support material 2 pass in order to assemble the penetrating support material 2 that supports the ceiling board. The shape and arrangement of the through holes 1c are set according to the form of the penetrating support material 2 (indicated by the symbol 2A in Figures 1 and 2, the symbol 2B in Figures 3, 4 and 5, the symbol 2C in Figure 6, and the symbol 2D in Figure 7).

一方、貫通支持材２は、天井板１の天井下側の面を支持する支持部２１と、天井板１の貫通穴１ｃに挿通させるために支持部２１の上部に形成された貫通部２２とを有している。更に、貫通支持材２には、天井板１における補剛構造を構成するため、貫通支持材２の複数の貫通部２２を構造的に連結する連結手段が備えられている。本発明においては、貫通支持材２及び上記の連結手段の形態の違いにより、２つの態様が挙げられる。 On the other hand, the penetrating support material 2 has a support part 21 that supports the underside of the ceiling of the ceiling board 1, and a through part 22 formed on the upper part of the support part 21 for insertion into the through hole 1c of the ceiling board 1. Furthermore, the penetrating support material 2 is provided with a connecting means that structurally connects the multiple through parts 22 of the penetrating support material 2 to form a stiffening structure for the ceiling board 1. In the present invention, there are two embodiments, depending on the shape of the penetrating support material 2 and the above-mentioned connecting means.

先ず、本発明の第１の態様について説明する。第１の態様に係る天井材においては、図１及び図２に示すように、貫通支持材２Ａが、側面視した場合、横長の帯状形の上辺部に複数の突起が形成された平板状の部材で構成される。そして、上記の帯状形の部位が支持部２１及び連結手段として構成され、各突起が貫通部２２として構成される。すなわち、貫通支持材２Ａは、平面形状が凸状の複数の部位を連結部３ａ（図１中の破線に部位）で連続させて１つの部材に構成されており、連結部３ａが連結手段の機能を有する。 First, the first aspect of the present invention will be described. In the ceiling material according to the first aspect, as shown in Figs. 1 and 2, the penetrating support material 2A is composed of a flat plate-like member with multiple protrusions formed on the upper edge of a horizontally long band-like shape when viewed from the side. The band-like portion is composed of the support portion 21 and the connecting means, and each protrusion is composed of a penetrating portion 22. In other words, the penetrating support material 2A is composed of multiple portions with a convex planar shape connected by connecting portions 3a (the portions indicated by the dashed lines in Fig. 1) to form a single member, and the connecting portions 3a function as the connecting means.

貫通支持材２Ａの寸法仕様は、天井板１の面積や強度および意匠性を考慮して適宜設計できるが、例えば、貫通支持材２Ａの厚さが１～５０ｍｍ程度に設定され、また、貫通支持材２Ａの水平方向の長さが４５０～６０００ｍｍ程度、支持部２１の高さ（帯状部分の幅）が２０～１５００ｍｍ程度、支持部２１からの貫通部２２の突出高さが１０～５００ｍｍ程度に設定される。そして、貫通支持材２Ａにおける貫通部２２の配列ピッチは、例えば２００～２０００ｍｍ程度に設定される。更に、貫通支持材２Ａの貫通部２２には、上記の野縁７に貫通支持材２Ａを吊り下げるため、吊持金具としての掛止めバネ４を装着するための通し穴２ａが設けられる。 The dimensional specifications of the penetrating support material 2A can be appropriately designed taking into consideration the area, strength, and design of the ceiling board 1, but for example, the thickness of the penetrating support material 2A is set to about 1 to 50 mm, the horizontal length of the penetrating support material 2A is set to about 450 to 6000 mm, the height of the support part 21 (width of the band-shaped part) is set to about 20 to 1500 mm, and the protruding height of the penetrating part 22 from the support part 21 is set to about 10 to 500 mm. The arrangement pitch of the penetrating parts 22 in the penetrating support material 2A is set to about 200 to 2000 mm, for example. Furthermore, the penetrating part 22 of the penetrating support material 2A is provided with a through hole 2a for attaching a latch spring 4 as a hanging fitting to suspend the penetrating support material 2A from the above-mentioned joist 7.

上記の貫通支持材２Ａを使用する場合、天井板１には、配置される貫通支持材２Ａの長さ方向に沿ったスリット状の貫通穴１ｃが貫通部２２に対応する部位に複数設けられる。貫通部２２の通し穴２ａに装着する掛止めバネ４は、底部が扁平に形成され且つ上端に向うに従い漸次幅が拡がる略Ｕ字状に形成された鋼線などからなる弾性体であり、その上端は、Ｕ字の外側に向けて折り曲げられた形状の掛止め部を備えている。そして、天井下地構造を構成する野縁７には、上記の掛止めバネ４を引っ掛けるための引っ掛け穴７ｃが貫通支持材２Ａの貫通部２２に対応する位置に設けられる。引っ掛け穴７ｃは、通し穴２ａに装着される掛止めバネ４の伸縮方向に対応するように、天井板１の貫通穴１ｃに直交する方向に延びる長穴に形成される。 When the above-mentioned penetrating support material 2A is used, the ceiling board 1 is provided with a plurality of slit-shaped through holes 1c along the length direction of the penetrating support material 2A to be placed at the portion corresponding to the penetrating portion 22. The hook spring 4 to be attached to the through hole 2a of the penetrating portion 22 is an elastic body made of a steel wire or the like formed in a roughly U-shape with a flat bottom and a gradually expanding width toward the upper end, and the upper end is provided with a hook part bent toward the outside of the U-shape. The hanging hole 7 for hanging the above-mentioned hanging spring 4 is provided in the siding 7 constituting the ceiling base structure at a position corresponding to the penetrating portion 22 of the penetrating support material 2A. The hanging hole 7c is formed as an elongated hole extending in a direction perpendicular to the through hole 1c of the ceiling board 1 so as to correspond to the expansion and contraction direction of the hanging spring 4 to be attached to the through hole 2a.

第１の態様の天井材の施工においては、野縁７の下側に天井板１を持ち上げた状態で天井板１の天井下側から貫通支持材２Ａを配置すると共に、当該貫通支持材の貫通部２２を天井板１の貫通穴１ｃに挿通する。そして、天井裏において、天井板１の各貫通穴１ｃかた突出した貫通部２２の通し穴２ａに掛止めバネ４を通した後、斯かる掛止めバネ４を圧縮してその上端部を野縁７の引っ掛け穴７ｃに挿入して開放する。これにより、掛止めバネ４の上端のの掛止め部が拡がるため、掛止めバネ４を介して野縁７に貫通支持材２Ａを吊り下げることができ、天井板１を敷設することができる。 In the construction of the first type of ceiling material, the ceiling board 1 is lifted up below the joist 7, and the penetrating support material 2A is placed from the underside of the ceiling of the ceiling board 1, and the penetrating portion 22 of the penetrating support material is inserted into the through hole 1c of the ceiling board 1. Then, in the ceiling space, the hanging spring 4 is passed through the through hole 2a of the penetrating portion 22 protruding from each through hole 1c of the ceiling board 1, and then the hanging spring 4 is compressed and its upper end is inserted into the hook hole 7c of the joist 7 and released. This causes the hanging portion at the upper end of the hanging spring 4 to expand, so that the penetrating support material 2A can be hung from the joist 7 via the hanging spring 4, and the ceiling board 1 can be laid.

すなわち、第１の態様においては、天井板１の天井下側の面を支持する支持部２１と、天井板１に設けた貫通穴１ｃに貫通させる貫通部２２とを貫通支持材２Ａが有しており、天井下地構造に対して吊持金具としての掛止めバネ４を介して天井板１を吊り下げた状態で支持する。その際、貫通支持材２Ａには、複数の貫通部２２を構造的に連結する連結手段としての連結部３ａが設けられているため、換言すれば、貫通支持材２Ａが一体として構成されているため、貫通支持材２Ａが天井板１に対する補剛構造を構成し、天井板１の撓みを抑制することができる。従って、本発明の第１の態様に係る天井材によれば、厚さの一層薄い天井板１を使用することができ、また、一層大きな面積の天井板１を使用することもでき、そして、各種の材料で天井板１を構成できる。 That is, in the first embodiment, the penetrating support material 2A has a support part 21 that supports the ceiling underside surface of the ceiling board 1 and a through part 22 that penetrates the through hole 1c provided in the ceiling board 1, and supports the ceiling board 1 in a suspended state via a hanging spring 4 as a hanging fitting to the ceiling base structure. At that time, the penetrating support material 2A is provided with a connecting part 3a as a connecting means that structurally connects the multiple through parts 22, in other words, the penetrating support material 2A is configured as an integral unit, so that the penetrating support material 2A forms a stiffening structure for the ceiling board 1 and can suppress the deflection of the ceiling board 1. Therefore, according to the ceiling material related to the first embodiment of the present invention, a thinner ceiling board 1 can be used, and a ceiling board 1 with a larger area can also be used, and the ceiling board 1 can be configured with various materials.

次に、本発明の第２の態様について説明する。第２の態様に係る天井材においては、図３及び図４に示すように、貫通支持材２Ｂが、側面視した場合、例えば凸形状に形成された平板状の部材で構成される。斯かる貫通支持材２Ｂにおいては、凸形の幅広の略下半部が支持部２１として構成され、略上半部の突起が貫通部２２として構成される。すなわち、貫通支持材２Ｂは、各１つの支持部２１及び貫通部２２を有するコマ状の部材として構成されており、連結手段として、天井板１の天井裏側の面に配置される連結バー３ｂを備えている。そして、複数の貫通支持材２Ｂは、これらを配置した際、貫通部２２に設けられた挿通穴２ｂに連結バー３ｂを挿通することによりこれら貫通部２２が相互に連結されるように構成される。 Next, the second aspect of the present invention will be described. In the ceiling material according to the second aspect, as shown in Figs. 3 and 4, the penetrating support material 2B is, for example, a flat plate-like member formed in a convex shape when viewed from the side. In such a penetrating support material 2B, the broad lower half of the convex shape is configured as the support part 21, and the protrusion of the upper half is configured as the through part 22. That is, the penetrating support material 2B is configured as a top-shaped member having one support part 21 and one through part 22, and is provided with a connecting bar 3b arranged on the under-ceiling surface of the ceiling board 1 as a connecting means. The multiple penetrating support materials 2B are configured so that when they are arranged, the through parts 22 are connected to each other by inserting the connecting bar 3b into the insertion hole 2b provided in the through part 22.

貫通支持材２Ｂの寸法仕様は、例えば、厚さが１～５０ｍｍ程度に設定され、また、支持部２１の幅が３０～５００ｍｍ程度、高さが２０～１５００ｍｍ程度に設定され、貫通部２２の幅が２０～４９０ｍｍ程度、支持部２１からの貫通部２２の突出高さが１０～５００ｍｍ程度に設定される。更に、貫通部２２には、連結バー３ｂを挿通するための例えば正方形または長方形の挿通穴２ｂが開口されている。そして、挿通穴２ｂは、連結バー３ｂを挿通した際に緩みが生じない程度の大きさに形成されている。 The dimensional specifications of the penetrating support material 2B are, for example, set to a thickness of about 1 to 50 mm, the width of the support portion 21 to about 30 to 500 mm, the height to about 20 to 1500 mm, the width of the penetrating portion 22 to about 20 to 490 mm, and the protruding height of the penetrating portion 22 from the support portion 21 to about 10 to 500 mm. Furthermore, the penetrating portion 22 is provided with, for example, a square or rectangular insertion hole 2b for inserting the connecting bar 3b. The insertion hole 2b is formed to a size that does not cause loosening when the connecting bar 3b is inserted.

連結バー３ｂは、複数の貫通支持材２Ｂを介して天井板１を補強するための棒状の部材であり、四角筒状のアルミニウム型鋼などで構成される。連結バー３ｂの長さ方向に直交する断面は、一辺が１０～４００ｍｍ程度の四角形に形成され、連結バー３ｂの長さは、天井板１の長さにと略同等の長さに設定される。 The connecting bar 3b is a rod-shaped member for reinforcing the ceiling panel 1 via multiple penetrating support members 2B, and is made of a rectangular aluminum steel tube. The cross section perpendicular to the length of the connecting bar 3b is formed into a rectangle with sides of approximately 10 to 400 mm, and the length of the connecting bar 3b is set to be approximately the same as the length of the ceiling panel 1.

上記の貫通支持材２Ｂを使用する場合、天井板１には、図３に示すように、例えば、当該天井板の長手方向（連結バー３ｂの伸長方向）に直交する細長スリット状の貫通穴１ｃが複数設けられる。天井板１における貫通穴１ｃの配列ピッチ、すなわち、貫通支持材２Ｂの配列ピッチは、例えば２００～２０００ｍｍ程度とされる。そして、貫通支持材２Ｂを使用する場合には、天井下地構造に野縁を配置することなく、タッピングビス等の螺子８を使用し、上記の連結バー３ｂを野縁受け６に直接取り付けることができる。 When using the above-mentioned penetrating support material 2B, as shown in FIG. 3, the ceiling board 1 is provided with a plurality of elongated slit-shaped through holes 1c that are perpendicular to the longitudinal direction of the ceiling board (the extension direction of the connecting bar 3b). The arrangement pitch of the through holes 1c in the ceiling board 1, i.e., the arrangement pitch of the penetrating support material 2B, is, for example, about 200 to 2000 mm. When using the penetrating support material 2B, the above-mentioned connecting bar 3b can be attached directly to the furring beam support 6 using screws 8 such as tapping screws, without placing a furring beam in the ceiling base structure.

第２の態様の天井材の施工においては、天井板１を敷設する前に、予め、天井板１の天井下側から当該天井板の貫通穴１ｃに複数の貫通支持材２Ｂの貫通部２２を挿通し、天井板１の天井裏側（上面側）に突出した各貫通部２２の挿通穴２ｂに連結バー３ｂを通し、これら貫通部２２を連結バー３ｂで連結した状態とする。これにより、天井板１の天井下側の面に多数の貫通支持材２Ｂが取り付けられ且つ天井板１の天井裏側の面に連結バー３ｂが配置され、しかも、貫通支持材２Ｂ及び連結バー３ｂが一体化された天井板１を構成できる。そして、図４及び図５に示すように、天井板１を野縁受け６の下面側に配置し、天井裏で螺子８により野縁受け６に固定することにより、天井板１を敷設することができる。 In the construction of the second type of ceiling material, before laying the ceiling board 1, the through-holes 22 of the multiple penetrating support materials 2B are inserted into the through-holes 1c of the ceiling board from the underside of the ceiling, and the connecting bar 3b is passed through the insertion hole 2b of each penetrating part 22 protruding from the ceiling back side (upper surface side) of the ceiling board 1, and these penetrating parts 22 are connected by the connecting bar 3b. This allows the ceiling board 1 to be constructed in such a way that multiple penetrating support materials 2B are attached to the ceiling underside surface of the ceiling board 1 and the connecting bar 3b is arranged on the ceiling back side surface of the ceiling board 1, and the penetrating support materials 2B and the connecting bar 3b are integrated. Then, as shown in Figures 4 and 5, the ceiling board 1 can be laid by placing the ceiling board 1 on the underside of the joist support 6 and fixing it to the joist support 6 with screws 8 behind the ceiling.

すなわち、第２の態様においては、貫通支持材２Ｂが天井板１の天井下側の面を支持する支持部２１と、天井板１に設けた貫通穴１ｃに貫通させる貫通部２２とを有し、かつ、複数の貫通支持材２Ｂを相互に連結する連結手段としての連結バー３ｂを備えている。そして、天井下地構造（野縁受け６）に対して連結バー３ｂを螺子８で固定することより、貫通支持材２Ｂを介して天井板１を吊り下げた状態で支持する。その際、連結手段としての連結バー３ｂが複数の貫通支持材２Ｂの貫通部２２を構造的に連結し、これら連結された貫通支持材２Ｂが天井板１に対する補剛構造を構成するため、天井板１の撓みを抑制することができる。従って、第１の態様と同様に、本発明の第２の態様に係る天井板によれば、厚さの一層薄い天井板１を使用することができ、また、一層大きな面積の天井板１を使用することができ、そして、各種の材料で天井板１を構成できる。 That is, in the second embodiment, the penetrating support material 2B has a support part 21 that supports the ceiling underside surface of the ceiling board 1, and a through part 22 that penetrates the through hole 1c provided in the ceiling board 1, and is provided with a connecting bar 3b as a connecting means for connecting the multiple penetrating support materials 2B to each other. Then, the connecting bar 3b is fixed to the ceiling base structure (rafter 6) with a screw 8, so that the ceiling board 1 is supported in a suspended state via the penetrating support material 2B. At that time, the connecting bar 3b as a connecting means structurally connects the through parts 22 of the multiple penetrating support materials 2B, and these connected penetrating support materials 2B form a stiffening structure for the ceiling board 1, so that the deflection of the ceiling board 1 can be suppressed. Therefore, as in the first embodiment, according to the ceiling board according to the second embodiment of the present invention, a thinner ceiling board 1 can be used, and a ceiling board 1 with a larger area can be used, and the ceiling board 1 can be constructed from various materials.

また、上記の第２の態様においては、図３～図５に示す平板状の貫通支持材２Ｂに代えて、図６、図７に示すような立体構造の貫通支持材２を使用することもできる。図６に示す貫通支持材２Ｃは、部材本体が円筒状に形成され、中心線が垂直になるように見た場合、円筒の略下半部が貫通支持材２１として構成され、円筒の略上半部において対象に位置する各１／４周部分が切り欠かれ且つそれに隣接する各１／４周部分が貫通部２２として構成されており、斯かる貫通部２２に挿通穴２ｂが開口されている。 In addition, in the second embodiment, instead of the flat plate-shaped penetrating support material 2B shown in Figures 3 to 5, a three-dimensional penetrating support material 2 as shown in Figures 6 and 7 can be used. The penetrating support material 2C shown in Figure 6 has a cylindrical member body, and when viewed with the center line perpendicular, the lower half of the cylinder is configured as the penetrating support material 21, and in the upper half of the cylinder, each 1/4 circumference portion located symmetrically is cut out and each adjacent 1/4 circumference portion is configured as a penetrating portion 22, and an insertion hole 2b is opened in the penetrating portion 22.

貫通支持材２Ｃの寸法仕様は、例えば、外径が５０～５００ｍｍ程度、全体の高さが２０～１５００ｍｍ程度、支持部２１からの貫通部２２の立ち上がり高さが１０～５００ｍｍ程度に設定される。連結バー３ｂを挿通する挿通穴２ｂは図３～図５に示す態様と同様である。 The dimensional specifications of the penetrating support material 2C are set, for example, as follows: outer diameter approximately 50 to 500 mm, overall height approximately 20 to 1500 mm, and the rising height of the penetrating portion 22 from the support portion 21 approximately 10 to 500 mm. The insertion hole 2b through which the connecting bar 3b is inserted is the same as that shown in Figures 3 to 5.

上記の貫通支持材２Ｃを使用する場合には、天井板１には、貫通部２２に対応する部位に貫通穴として弓形状のスリットが複数設けられる。そして、貫通支持材２Ｃを使用した天井材の施工においては、上記の貫通支持材２Ｂの場合と同様に、予め、天井板１の天井下側から当該天井板の貫通穴１ｃに複数の貫通支持材２Ｃの貫通部２２を挿通し、天井板１の天井裏側（上面側）に突出した各貫通部２２の挿通穴２ｂに連結バー３ｂを通し、これら貫通部２２を連結バー３ｂで連結することにより、貫通支持材２Ｂ及び連結バー３ｂが一体化された天井板１を構成した後、野縁受け６の下面側に敷設する。 When using the above-mentioned penetrating support material 2C, multiple arch-shaped slits are provided as through holes in the ceiling board 1 at the locations corresponding to the penetrating portions 22. In constructing a ceiling material using the penetrating support material 2C, similar to the case of the above-mentioned penetrating support material 2B, the penetrating portions 22 of the multiple penetrating support materials 2C are inserted into the through holes 1c of the ceiling board 1 from the underside of the ceiling, and the connecting bars 3b are passed through the insertion holes 2b of each penetrating portion 22 protruding from the ceiling back side (upper surface side) of the ceiling board 1, and these penetrating portions 22 are connected with the connecting bars 3b to form the ceiling board 1 in which the penetrating support material 2B and the connecting bars 3b are integrated, and then the ceiling board 1 is laid on the underside of the joist support 6.

更に、図７に示す貫通支持材２Ｄは、部材本体が四角筒状に形成され、中心線が垂直になるように見た場合、四角筒の略下半部が貫通支持材２１として構成され、四角筒筒の略上半部において対向する２つの側面部分が切り欠かれ且つそれに隣接する２つの側面部分が貫通部２２として構成されており、斯かる貫通部２２に挿通穴２ｂが開口されている。 Furthermore, the penetrating support material 2D shown in Figure 7 has a member body formed in a square tube shape, and when viewed so that the center line is vertical, approximately the lower half of the square tube is configured as the penetrating support material 21, and approximately the upper half of the square tube has two opposing side portions cut out and the two adjacent side portions configured as a penetrating portion 22, and an insertion hole 2b is opened in the penetrating portion 22.

貫通支持材２Ｄの寸法仕様は、例えば、側面の幅が５０～５００ｍｍ程度、全体の高さが２０～１５００ｍｍ程度、支持部２１からの貫通部２２の立ち上がり高さが１０～５００ｍｍ程度に設定される。連結バー３ｂを挿通する挿通穴２ｂは図３～図５に示す態様と同様である。 The dimensional specifications of the penetrating support material 2D are set, for example, with a side width of approximately 50 to 500 mm, an overall height of approximately 20 to 1500 mm, and a rise height of the penetrating portion 22 from the support portion 21 of approximately 10 to 500 mm. The insertion hole 2b through which the connecting bar 3b is inserted is the same as that shown in Figures 3 to 5.

上記の貫通支持材２Ｄを使用する場合には、天井板１には、当該天井板の長手方向（連結バー３ｂの伸長方向）に直交する細長スリット状の貫通穴１ｃが複数設けられる。そして、貫通支持材２Ｄを使用した天井材の施工においては、上記の貫通支持材２Ｂの場合と同様に、予め、天井板１の天井下側から当該天井板の貫通穴１ｃに複数の貫通支持材２Ｄの貫通部２２を挿通し、天井板１の天井裏側（上面側）に突出した各貫通部２２の挿通穴２ｂに連結バー３ｂを通し、これら貫通部２２を連結バー３ｂで連結することにより、貫通支持材２Ｂ及び連結バー３ｂが一体化された天井板１を構成した後、野縁受け６の下面側に敷設する。 When using the above-mentioned penetrating support material 2D, the ceiling board 1 is provided with a plurality of elongated slit-shaped through holes 1c that are perpendicular to the longitudinal direction of the ceiling board (the extension direction of the connecting bar 3b). In the construction of a ceiling material using the penetrating support material 2D, similar to the case of the above-mentioned penetrating support material 2B, the penetrating portions 22 of the penetrating support material 2D are inserted into the through holes 1c of the ceiling board from the underside of the ceiling of the ceiling board 1, the connecting bar 3b is passed through the insertion holes 2b of each penetrating portion 22 protruding from the ceiling back side (upper surface side) of the ceiling board 1, and these penetrating portions 22 are connected with the connecting bar 3b to form the ceiling board 1 in which the penetrating support material 2B and the connecting bar 3b are integrated, and then the ceiling board 1 is laid on the underside of the joist support 6.

上記のように、本発明に係る天井材によれば、天井板１を吊り下げた状態で支持した際、貫通支持材２の複数の貫通部２２を構造的に連結する連結手段が天井板１の補剛構造を構成し、天井板１の撓みを抑制するため、厚さの一層薄い天井板１を使用することができ、また、一層大きな面積の天井板１を使用することができ、そして、各種の材料で天井板１を構成できる。従って、より自由な意匠デザインが可能になる。 As described above, with the ceiling material of the present invention, when the ceiling board 1 is supported in a suspended state, the connecting means that structurally connects the multiple penetration portions 22 of the penetrating support material 2 constitutes a stiffening structure for the ceiling board 1 and suppresses the deflection of the ceiling board 1, so that a thinner ceiling board 1 can be used, a ceiling board 1 with a larger area can be used, and the ceiling board 1 can be constructed from a variety of materials. This allows for greater freedom in design.

また、本発明に係る天井材によれば、天井板１自体の設計範囲を拡げることが可能になると共に、貫通支持材２の形状、配置を工夫することにより、天井板１及び貫通支持材２の両方を意匠部分として構成することができる。更に、図６に示す貫通支持材２Ｃ、図７に示す貫通支持材２Ｄを使用した場合には、これら貫通支持材２の筒内に照明器具を配置することができ、機能性を高めることもできる。 The ceiling material of the present invention also makes it possible to expand the design range of the ceiling board 1 itself, and by devising the shape and arrangement of the penetrating support material 2, both the ceiling board 1 and the penetrating support material 2 can be configured as design parts. Furthermore, when the penetrating support material 2C shown in FIG. 6 and the penetrating support material 2D shown in FIG. 7 are used, lighting fixtures can be placed inside the tubes of these penetrating support materials 2, thereby enhancing functionality.

更に、図８及び図９に示すように、本発明に係る天井材においては、天井板１として、平坦な部材に限らず、緩く湾曲したうねり形状の天井板を使用することもできる。例えば、第２の態様において、うねり形状の天井板１を使用する場合には、上記の図３に示すのと同様の貫通支持材２Ｂが使用され、天井板１のうねりに対応する湾曲した連結バー３ｂが配置される。また、野縁受け６への固定部を増設するため、連結バー３ｂから外れた位置に貫通支持材２Ｂが配置され、斯かる貫通支持材２Ｂを差込み留具３ｃで系止するように構成されていてもよい。うねり形状の天井板１を使用した場合には、意匠デザインの変化のみならず、音響特性を変化させることもできる。 Furthermore, as shown in Figures 8 and 9, in the ceiling material according to the present invention, the ceiling board 1 is not limited to a flat member, and a gently curved, wavy ceiling board can also be used. For example, in the second embodiment, when a wavy ceiling board 1 is used, a penetrating support material 2B similar to that shown in Figure 3 above is used, and a curved connecting bar 3b corresponding to the wavy shape of the ceiling board 1 is arranged. In addition, in order to add a fixing part to the joist support 6, the penetrating support material 2B may be arranged at a position away from the connecting bar 3b, and the penetrating support material 2B may be configured to be fastened with an insert fastener 3c. When a wavy ceiling board 1 is used, not only can the design be changed, but the acoustic characteristics can also be changed.

本発明の天井材は、天井板１を吊り下げた状態で支持した際、貫通支持材２により天井板１の撓みを抑制できるため、厚さが一層薄く、面積が一層大きな天井板１を使用することができ、より自由な意匠デザインができるため、ビル等の大型施設の天井の施工に好適である。 When the ceiling material of the present invention supports the ceiling panel 1 in a suspended state, the penetrating support material 2 prevents the ceiling panel 1 from bending, allowing the use of a thinner ceiling panel 1 with a larger surface area, and allowing for greater freedom in design, making it ideal for use in the construction of ceilings in large facilities such as buildings.

１：天井板
１ｃ：貫通穴
２（２Ａ，２Ｂ，２Ｃ，２Ｄ）：貫通支持材
２１：支持部
２２：貫通部
２ａ：通し穴
２ｂ：挿通穴
３ａ：連結部（連結手段）
３ｂ：連結バー（連結手段）
３ｃ：差込み留具
４：掛止めバネ
５：吊りボルト
６：野縁受け
７：野縁
７ｃ：引っ掛け穴
８：螺子 1: Ceiling plate 1c: Through hole 2 (2A, 2B, 2C, 2D): Penetrating support material 21: Supporting part 22: Penetrating part 2a: Through hole 2b: Insertion hole 3a: Connecting part (connecting means)
3b: Connection bar (connection means)
3c: Insert fastener 4: Latch spring 5: Suspension bolt 6: Rafter support 7: Rafter 7c: Hook hole 8: Screw

Claims

A ceiling material that is attached to a ceiling base structure to form a ceiling, the ceiling material comprising: a ceiling panel that forms the design of the ceiling; and a plurality of penetrating support materials that penetrate the ceiling panel from the underside of the ceiling to support the ceiling panel on the ceiling base structure, each of the penetrating support materials having a support portion that supports the underside of the ceiling of the ceiling panel, and a penetrating portion formed on the upper portion of the support portion, the ceiling panel is provided with a plurality of through holes through which the support portions of the penetrating support materials do not pass but the penetrating portions pass, and the penetrating support materials are provided with connecting means that structurally connect the plurality of penetrating portions , and the ceiling panel is suspended from the ceiling base structure via a hole portion that penetrates laterally and is provided in the penetrating portion .

A ceiling material that is attached to a ceiling base structure to form a ceiling, comprising a ceiling board that forms the design of the ceiling, and a number of penetrating support materials that penetrate the ceiling board from the underside of the ceiling to support the ceiling board on the ceiling base structure, each of the penetrating support materials having a support portion that supports the underside of the ceiling of the ceiling board and a penetrating portion formed on an upper portion of the support portion, the ceiling board is provided with a number of through holes through which the penetrating portions pass but not through the support portions of the penetrating support materials, and the penetrating support materials are provided with connecting means that structurally connect the multiple penetrating portions,
When viewed from the side, the penetrating support material is a flat, horizontally elongated, band-shaped member with multiple protrusions formed on the upper edge, the band-shaped portion being configured as a support part and a connecting means, and each of the protrusions being configured as a penetrating part in the ceiling material.

A ceiling material that is attached to a ceiling base structure to form a ceiling, comprising a ceiling board that forms the design of the ceiling, and a number of penetrating support materials that penetrate the ceiling board from the underside of the ceiling to support the ceiling board on the ceiling base structure, each of the penetrating support materials having a support portion that supports the underside of the ceiling of the ceiling board and a penetrating portion formed on an upper portion of the support portion, the ceiling board is provided with a number of through holes through which the penetrating portions pass but not through the support portions of the penetrating support materials, and the penetrating support materials are provided with connecting means that structurally connect the multiple penetrating portions,
The penetrating support material is provided with a connecting bar that is placed on the under-ceiling surface of the ceiling board as a connecting means, and multiple penetrating support materials are connected to each other at their penetration portions by inserting the connecting bar into insertion holes provided in the penetration portions.