JP6132131B2 - Ceiling material falling prevention mechanism and ceiling structure provided with the same - Google Patents

Ceiling material falling prevention mechanism and ceiling structure provided with the same Download PDF

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JP6132131B2
JP6132131B2 JP2012269300A JP2012269300A JP6132131B2 JP 6132131 B2 JP6132131 B2 JP 6132131B2 JP 2012269300 A JP2012269300 A JP 2012269300A JP 2012269300 A JP2012269300 A JP 2012269300A JP 6132131 B2 JP6132131 B2 JP 6132131B2
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ceiling
claw
penetrating
suspension
mounting
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JP2014114594A (en
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記彦 櫻庭
記彦 櫻庭
中村 吉孝
吉孝 中村
潤 八百板
潤 八百板
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Shimizu Corp
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本発明は、天井材脱落防止機構及びこれを備えた天井構造に関する。   The present invention relates to a ceiling material drop prevention mechanism and a ceiling structure including the same.

従来、建物の天井部の構造として、吊り天井が多用されている。また、例えば図6に示すように、水平の一方向T1に延び、一方向T1に直交する他方向T2に所定の間隔をあけて並設された複数のTバー(断面逆T型の天井材支持部材)1と、上端側を上階の床材(上部構造)等に固着し、下端側をTバー1に接続して配設された複数の吊りボルト2と、他方向T2に隣り合うTバー1に架け渡すように配設されて天井面3aを形成する天井材(天井パネル)3とを備えて構成したライン天井、ライン型システム天井などと称する天井構造Aがある(例えば、特許文献1参照)。   Conventionally, a suspended ceiling is often used as a structure of a ceiling portion of a building. For example, as shown in FIG. 6, a plurality of T bars (inverted T-shaped ceiling members having a cross section inverted in parallel with a predetermined interval in another direction T2 orthogonal to one direction T1 extending in one horizontal direction T1. Support member) 1 and a plurality of suspension bolts 2 which are fixed to the floor material (upper structure) on the upper floor and the lower end side connected to the T-bar 1 are adjacent to each other in the other direction T2. There is a ceiling structure A referred to as a line ceiling, a line type system ceiling, or the like that is configured to include a ceiling material (ceiling panel) 3 that is arranged so as to span the T-bar 1 and forms a ceiling surface 3a (for example, a patent) Reference 1).

一方、このようなライン式の天井構造Aなどにおいては、天井材3に大重量の設備機器が取り付けられることもあり、規模の大きな地震時に応答が大きくなって、大きな振り幅で横揺れするとともに周囲の壁などに衝突し、天井材3や設備機器に破損が生じるおそれがある。このため、従来、図6に示すように、上部構造などに上端側を接続し、下端側をTバー1に接続して補強ブレース4を設けるなどして、地震時の天井材3の横揺れを抑えるようにしている。 On the other hand, in the ceiling structure A of this line type, sometimes the ceiling material 3 is large weight of equipment mounted, increases the response to a large seismic scale, to roll a large swing width with It may collide with surrounding walls and the like, and the ceiling material 3 and the equipment may be damaged. For this reason, conventionally, as shown in FIG. 6, the upper side of the ceiling material 3 is connected to the upper structure, the lower side is connected to the T bar 1 and the reinforcing brace 4 is provided. I try to suppress it.

特開2005−350950号公報JP 2005-350950 A

しかしながら、上記従来の天井構造Aにおいては、天井材3がその両側端部3bをTバー1に架け渡して支持するように配設されているが故に、補強ブレース4で天井材3の横揺れを抑えたとしても、地震時に、側端部3bがTバー1から外れ、天井材3が脱落しやすいという問題があった。   However, in the above-described conventional ceiling structure A, the ceiling material 3 is disposed so as to support the both side end portions 3b of the T-bar 1 so that the ceiling material 3 rolls with the reinforcing brace 4. Even if it is suppressed, there is a problem that the side end 3b is detached from the T-bar 1 and the ceiling material 3 is easily dropped during an earthquake.

言い換えると、ライン式の天井構造Aにおいては、その構成上、補強ブレース4の増設などによって横揺れを抑える手法が耐震改修の主流とされており、現状では天井材3の落下防止対策として有効な手法がなく、天井材3の落下を防止する手法の開発が強く望まれていた。   In other words, in the line-type ceiling structure A, due to its configuration, a technique for suppressing rolls by adding a reinforcing brace 4 is the mainstream of earthquake-resistant repair, and is currently effective as a fall prevention measure for the ceiling material 3 There is no method, and development of a method for preventing the ceiling material 3 from falling has been strongly desired.

本発明は、上記事情に鑑み、天井材の落下を容易に且つ確実に防止するための天井材落下防止機構及びこれを備えた天井構造を提供することを目的とする。   In view of the above circumstances, an object of the present invention is to provide a ceiling material fall prevention mechanism for easily and reliably preventing a ceiling material from falling and a ceiling structure including the same.

上記の目的を達するために、この発明は以下の手段を提供している。   In order to achieve the above object, the present invention provides the following means.

本発明の天井材脱落防止機構は、建物の構造体に支持させて設けられた天井材支持部材と、該天井材支持部材に取り付けられて天井面を形成する板状の天井材とを備えてなる天井構造の前記天井材の脱落を防止するための機構であって、前記天井面側から天井裏に突出するように前記天井材に貫通させる貫通爪部、及び該貫通爪部の一端に接続して一体形成され、前記貫通爪部を前記天井材に貫通させるとともに前記天井面に当接して係止される係止部からなる天井材貫通取付部材と、前記天井材の裏面側に配設されるとともに、前記貫通爪部に接続し、前記天井材貫通取付部材を介して前記天井材と一体に設けられる天井裏側取付部材と、前記天井材支持部材に一体に取り付けられる吊元部材と、一端を前記天井裏側取付部材に、他端を前記吊元部材にそれぞれ接続して設けられる吊り材とを備え、且つ、前記天井材貫通取付部材が、板状の前記係止部と、前記係止部の周端に一端を接続し、前記係止部の前記天井面に接する板面に略直交して突設された前記貫通爪部とを備え、前記天井裏側取付部材が、前記天井材の裏面に当接する板状の底部と、一端を底部に接続し、略直交して突設された板状の爪接続部とを備え、前記貫通爪部を前記天井材に貫通させて前記天井材貫通取付部材を配設するとともに、前記天井裏に突出した前記貫通爪部を折り曲げて前記貫通爪部に前記爪接続部を係止させ、前記天井材貫通取付部材と前記天井裏側取付部材を接続するように構成されていることを特徴とする The ceiling material drop-off prevention mechanism of the present invention includes a ceiling material support member provided to be supported by a building structure, and a plate-like ceiling material attached to the ceiling material support member to form a ceiling surface. A mechanism for preventing the ceiling material of the ceiling structure from falling off, and is connected to one end of the penetrating claw portion penetrating through the ceiling material so as to protrude from the ceiling surface side to the back of the ceiling And a ceiling material penetrating mounting member comprising a locking portion which is formed integrally and penetrates the ceiling claw portion through the ceiling material and is brought into contact with and locked to the ceiling surface, and disposed on the back surface side of the ceiling material. The ceiling back side mounting member that is connected to the penetrating claw portion and is provided integrally with the ceiling material via the ceiling material penetration mounting member, and the suspension member that is integrally attached to the ceiling material support member, One end to the ceiling back side mounting member and the other end to the front Comprising a suspension member and provided respectively connected to Tsumoto member and the ceiling member through the mounting member, and connected to a plate of the locking part, one end in the circumferential edge of the locking portion, the locking The through claw portion projecting substantially orthogonal to the plate surface contacting the ceiling surface of the stop portion, and the ceiling back side mounting member has a plate-like bottom portion that contacts the back surface of the ceiling material, and one end. A plate-like claw connection portion that is connected to the bottom and protrudes substantially orthogonally, and the ceiling material penetrating attachment member is disposed by penetrating the through claw portion through the ceiling material, and the ceiling back the pawl connecting portion is engaged with, characterized in that it is configured to connect the ceiling rear mounting member and the ceiling member through the mounting member into the through claw portion by bending the through claw portion protruding .

この発明においては、天井面側から天井材に貫通爪部を貫通させて天井材貫通取付部材を取り付け、貫通した貫通爪部に接続して天井裏側取付部材を天井材の裏面側に取り付け、さらに、吊元部材をTバー(天井下地材)などの天井材支持部材に取り付ける。そして、ワイヤーロープなどの吊り材を天井裏側取付部材と吊元部材にそれぞれ接続して設けることにより、容易に吊り材を通じて天井材と天井材支持部材を接続することができる。
また、例えば爪接続部を挟み込むように、天井裏に突出した貫通爪部を折り曲げることによって、貫通爪部と爪接続部を係止させることができ、天井材貫通取付部材と天井裏側取付部材を容易に且つ強固に接続することができる。これにより、より容易に且つ確実に天井材と天井材支持部材を接続することができる。
In this invention, the penetrating claw portion is passed through the ceiling material from the ceiling surface side to attach the ceiling material penetrating mounting member, the ceiling back side mounting member is attached to the back side of the ceiling material by connecting to the penetrating through claw portion, The suspension member is attached to a ceiling material support member such as a T-bar (ceiling base material). And a ceiling material and a ceiling material support member can be easily connected through a suspension material by providing suspension materials, such as a wire rope, respectively connecting to a ceiling back side attachment member and a suspension base member.
In addition, for example, by folding the penetrating claw part protruding from the back of the ceiling so as to sandwich the claw connecting part, the penetrating claw part and the claw connecting part can be locked. It can be connected easily and firmly. Thereby, a ceiling material and a ceiling material support member can be connected more easily and reliably.

また、本発明の天井構造は、建物の構造体に支持させて設けられた天井材支持部材と、該天井材支持部材に取り付けられて天井面を形成する板状の天井材と、上記のいずれかの天井材脱落防止機構とを備えて構成されていることを特徴とする。   Further, the ceiling structure of the present invention includes a ceiling material support member provided to be supported by a building structure, a plate-like ceiling material attached to the ceiling material support member to form a ceiling surface, and any of the above And a ceiling material drop-off prevention mechanism.

この発明においては、上記の天井材脱落防止機構を備えることで、上記の天井材脱落防止機構による作用効果を得ることができる。   In this invention, by providing the above-described ceiling material drop-off prevention mechanism, it is possible to obtain the operational effects of the above-described ceiling material drop-off prevention mechanism.

本発明の天井材脱落防止機構及びこれを備えた天井構造においては、天井面側から天井材貫通取付部材を取り付け、貫通爪部に接続して天井材貫通取付部材を天井材の裏面側に取り付け、吊元部材をTバー(天井下地材)などの天井材支持部材に取り付け、ワイヤーロープなどの吊り材を天井裏側取付部材と吊元部材にそれぞれ接続して設けることによって、容易に吊り材を通じて天井材と天井材支持部材を接続することができる。これにより、地震時に側端部が天井材支持部材から外れ、天井材が脱落しそうになっても、吊り材を通じて天井材支持部材に接続されているため、天井材が脱落することを防止できる。   In the ceiling material drop-off prevention mechanism and the ceiling structure provided with the same according to the present invention, the ceiling material penetrating attachment member is attached from the ceiling surface side, and the ceiling material penetrating attachment member is attached to the back surface side of the ceiling material by connecting to the penetrating claw portion. By attaching the suspension member to a ceiling material support member such as a T-bar (ceiling base material) and connecting the suspension material such as a wire rope to the ceiling back side attachment member and the suspension member, the suspension member can be easily passed through the suspension material. The ceiling material and the ceiling material support member can be connected. Thereby, even if a side edge part remove | deviates from a ceiling material support member at the time of an earthquake and a ceiling material is likely to drop, since it is connected to the ceiling material support member through the suspension material, it can prevent that a ceiling material falls.

本発明の一実施形態に係る天井構造及び天井材脱落防止機構を示す斜視図である。It is a perspective view which shows the ceiling structure and ceiling material drop-off prevention mechanism which concern on one Embodiment of this invention. 本発明の一実施形態に係る天井材脱落防止機構を示す図である。It is a figure which shows the ceiling material drop-off prevention mechanism which concerns on one Embodiment of this invention. 本発明の一実施形態に係る天井材脱落防止機構の天井材貫通取付部材を示す図である。It is a figure which shows the ceiling material penetration attachment member of the ceiling material fall-off prevention mechanism which concerns on one Embodiment of this invention. 本発明の一実施形態に係る天井材脱落防止機構の天井材貫通取付部材、天井裏側取付部材を取り付けた状態を示す図である。It is a figure which shows the state which attached the ceiling material penetration attachment member and the ceiling back side attachment member of the ceiling material fall-off prevention mechanism which concerns on one Embodiment of this invention. 本発明の一実施形態に係る天井材脱落防止機構の天井裏側取付部材と吊り部材を示す図である。It is a figure which shows the ceiling back side attachment member and suspension member of the ceiling material drop-off prevention mechanism which concerns on one Embodiment of this invention. 従来の天井構造を示す斜視図である。It is a perspective view which shows the conventional ceiling structure.

以下、図1から図5を参照し、本発明の一実施形態に係る天井材脱落防止機構及びこれを備えた天井構造について説明する。   Hereinafter, a ceiling material drop prevention mechanism and a ceiling structure including the same according to an embodiment of the present invention will be described with reference to FIGS.

図1に示すように、本実施形態の天井構造Bは、例えば、クリーンルームのように、ファンフィルターユニット等の大重量の設備機器が設置されるライン式の天井部の構造である。そして、この天井構造Bは、図6に示した従来の天井構造Aと同様、水平の一方向T1に延び、一方向T1に直交する他方向T2に所定の間隔をあけて並設された複数の天井材支持部材1と、上端側を上階の床材等の上部構造(建物の構造体)に接続し、下端側を天井材支持部材1に接続して配設された複数の吊りボルト2と、他方向T2に隣り合う天井材支持部材1に架け渡すように配設されて天井面3aを形成する天井材(天井パネル)3と、上部構造に上端側を接続し、天井材支持部材1に一端を接続して突設されたガセットプレート5に下端側を接続して斜設された補強ブレース4とを備えて構成されている。   As shown in FIG. 1, the ceiling structure B of the present embodiment is a line-type ceiling structure in which a heavy equipment such as a fan filter unit is installed like a clean room. The ceiling structure B is a plurality of parallelly arranged at predetermined intervals in the other direction T2 extending in one horizontal direction T1 and orthogonal to the one direction T1, like the conventional ceiling structure A shown in FIG. The ceiling material support member 1 and a plurality of suspension bolts, the upper end side of which is connected to an upper structure (building structure) such as an upper floor material and the lower end side of the ceiling material support member 1 is connected to the ceiling material support member 1 2 and a ceiling material (ceiling panel) 3 which is arranged so as to bridge over the ceiling material support member 1 adjacent in the other direction T2 and forms the ceiling surface 3a, and the upper structure is connected to the upper structure to support the ceiling material A gusset plate 5 is provided with one end connected to the member 1 and a reinforcing brace 4 obliquely provided with a lower end connected thereto.

また、本実施形態では、天井材支持部材1として、水平方向T1、T2に延び、上載された天井材3の側端部3bを支持する天井材支持底部1aと、天井材支持底部1aの幅方向略中央から上方に突設した吊りボルト接続部1bとからなる断面逆T型のTバーが適用されている。そして、補強ブレース4が、ガセットプレート5に下端側をビス留め(ビス6)して、このTバー1に接続されている。   In the present embodiment, as the ceiling material support member 1, the ceiling material support bottom portion 1a that extends in the horizontal directions T1 and T2 and supports the side end portion 3b of the ceiling material 3 mounted thereon, and the width of the ceiling material support bottom portion 1a A T-bar having a reverse T-shaped cross section composed of a suspension bolt connecting portion 1b projecting upward from approximately the center in the direction is applied. The reinforcing brace 4 is connected to the T-bar 1 by screwing the lower end side to the gusset plate 5 (screw 6).

一方、本実施形態の天井構造Bは、図1及び図2に示すように、天井材3の脱落を防止するための天井材脱落防止機構Cを備えている。そして、この天井材脱落防止機構Cは、天井材貫通取付部材10と天井裏側取付部材11と吊元部材12と吊り材(吊りロープ)13とを備えて構成されている。   On the other hand, the ceiling structure B of the present embodiment includes a ceiling material dropout prevention mechanism C for preventing the ceiling material 3 from falling off, as shown in FIGS. 1 and 2. The ceiling material drop prevention mechanism C includes a ceiling material penetration mounting member 10, a ceiling back side mounting member 11, a suspension base member 12, and a suspension material (suspending rope) 13.

さらに、天井材貫通取付部材10は、図2、図3、図4に示すように、天井面3a側から天井裏に突出するように天井材3に貫通させる貫通爪部10aと、この貫通爪部10aの一端に接続して一体形成され、貫通爪部10aを天井材3に貫通させるとともに天井面3aに当接して係止される係止部10bとを備えて形成されている。また、本実施形態の天井材貫通取付部材10は、例えば板厚が1mm前後の溶融亜鉛めっき鋼板等を用いた金属製の部材であり、方形平板状に形成された係止部10bと、この係止部10bの平行する一対の側端部(周端)中間位置に下端(一端)を接続し、係止部10bの天井面3aに接する下面(板面)に略直交して突設された2つの貫通爪部10aとを備えて形成されている。また、各貫通爪部10aは、下端から一定の幅寸法で上端側に延び、上端が上方に向かうに従い漸次幅寸法が小となるように尖った形で形成されている。例えば、貫通爪部10aは、前記一定の幅寸法t1を4〜5mm程度、下端から上端までの長さ寸法t2を45mm程度として形成されている。   Further, as shown in FIGS. 2, 3, and 4, the ceiling material penetrating mounting member 10 includes a through claw portion 10a that penetrates the ceiling material 3 so as to protrude from the ceiling surface 3a side to the back of the ceiling, and the through claw. It is integrally formed by connecting to one end of the portion 10a, and is provided with a locking portion 10b that penetrates the ceiling claw portion 10a through the ceiling material 3 and is locked in contact with the ceiling surface 3a. Moreover, the ceiling material penetration mounting member 10 of this embodiment is a metal member using, for example, a hot dip galvanized steel sheet having a plate thickness of about 1 mm, and a locking portion 10b formed in a rectangular flat plate shape, A lower end (one end) is connected to an intermediate position between a pair of side end portions (peripheral ends) of the locking portion 10b in parallel, and is projected substantially orthogonal to a lower surface (plate surface) that contacts the ceiling surface 3a of the locking portion 10b. And two through claws 10a. Each penetrating claw portion 10a is formed in a sharp shape so as to extend from the lower end to the upper end side with a constant width dimension, and gradually decrease in width dimension as the upper end goes upward. For example, the penetrating claw portion 10a is formed with the constant width dimension t1 of about 4 to 5 mm and a length dimension t2 from the lower end to the upper end of about 45 mm.

そして、この天井材貫通取付部材10は、係止部10bを押しながら2つの貫通爪部10aを天井面3a側から天井材3に突刺し、係止部10bが天井面3aに面接触するように貫通させる。これより、天井材貫通取付部材10は、2つの貫通爪部10aを貫通させるという簡易な操作によって、これら2つの貫通爪部10aが天井裏側に突出した状態で天井材3に取り付けられる。なお、天井材貫通取付部材10を取り付けると、天井面3aに係止部10bが露出することになる。このため、例えば、天井材3の天井面3aの色、模様などを備えたシールを予め用意しておき、このシールを係止部10bに貼り付けるなどして、天井材貫通取付部材10を取り付けることで吊り天井Bの意匠を損なうことがないようにしてもよい。   The ceiling material penetrating mounting member 10 pierces the ceiling material 3 from the ceiling surface 3a side while pushing the locking portion 10b so that the locking portion 10b comes into surface contact with the ceiling surface 3a. To penetrate. Thus, the ceiling material penetrating attachment member 10 is attached to the ceiling material 3 with the two penetrating claw portions 10a protruding to the back of the ceiling by a simple operation of penetrating the two penetrating claw portions 10a. In addition, if the ceiling material penetration attachment member 10 is attached, the latching | locking part 10b will be exposed to the ceiling surface 3a. For this reason, for example, a seal provided with a color, a pattern, and the like of the ceiling surface 3a of the ceiling material 3 is prepared in advance, and the ceiling material penetrating attachment member 10 is attached by sticking this seal to the locking portion 10b. This may prevent the design of the suspended ceiling B from being damaged.

天井裏側取付部材11は、例えば板厚が1mm前後の溶融亜鉛めっき鋼板等を用いた金属製の部材であり、図2、図4、図5に示すように、方形平板状の底部11aと、底部11aの両側端部に下端(一端)を接続し、略直交して突設された側壁である方形平板状の一対の爪接続部11bとを備えてコ字状に形成されている。また、底部11aの各側端部と各爪接続部11bの下端を接続した角部(もしくは角部近傍)には、天井裏側取付部材11の外面から内面に貫通する爪挿通孔11cが形成されている。さらに、一方の爪接続部11bには、上端(他端)側に、外面から内面に貫通し、吊り材13の一端を接続するための吊り材接続孔11dが形成されている。   The ceiling back side attachment member 11 is a metal member using, for example, a hot dip galvanized steel sheet having a plate thickness of about 1 mm, and as shown in FIGS. 2, 4, and 5, A lower end (one end) is connected to both side end portions of the bottom portion 11a, and a pair of rectangular flat plate-like claw connecting portions 11b which are side walls protruding substantially orthogonally are formed in a U shape. Further, a claw insertion hole 11c penetrating from the outer surface to the inner surface of the ceiling back side mounting member 11 is formed at a corner portion (or in the vicinity of the corner portion) connecting each side end portion of the bottom portion 11a and the lower end of each claw connection portion 11b. ing. Furthermore, a suspension member connection hole 11d for connecting one end of the suspension member 13 is formed on one claw connection portion 11b on the upper end (other end) side, penetrating from the outer surface to the inner surface.

そして、この天井裏側取付部材11は、天井面3a側から天井裏に突出する天井材貫通取付部材10の各貫通爪部10aを各爪挿通孔11cに挿通し、底部11aを天井材3の裏面3cに当接させた状態で、天井材3の裏面3c側に配設される。さらに、本実施形態では、天井裏側取付部材11が、爪挿通孔11cに挿通して内面に沿って上方に延設された貫通爪部10aを爪接続部11bの上端付近で例えば略180°に折り曲げ、爪接続部11bを挟み込むようにし、貫通爪部10aに爪接続部11bを係止させることで天井材貫通取付部材10と接続保持され、この天井材貫通取付部材10を介して天井材3と一体に配設される。   And this ceiling back side attachment member 11 inserts each penetration nail | claw part 10a of the ceiling material penetration attachment member 10 which protrudes in the ceiling back from the ceiling surface 3a side in each claw penetration hole 11c, and the bottom part 11a is the back surface of the ceiling material 3 It is disposed on the back surface 3c side of the ceiling material 3 in a state of being in contact with 3c. Furthermore, in this embodiment, the ceiling back side mounting member 11 is inserted into the claw insertion hole 11c and the penetrating claw portion 10a extended upward along the inner surface is, for example, approximately 180 ° near the upper end of the claw connection portion 11b. The ceiling material penetrating mounting member 10 is connected and held by bending the claw connecting portion 11b and engaging the claw connecting portion 11b with the penetrating claw portion 10a. Through the ceiling material penetrating mounting member 10, the ceiling material 3 is connected. And are arranged integrally.

なお、貫通爪部10aに爪接続部11bを係止させて天井裏側取付部材11と天井材貫通取付部材10とを接続することが可能であれば、貫通爪部10aを折り曲げる角度を限定する必要はない。また、天井裏側取付部材11と天井材貫通取付部材10とを接続することが可能であれば、貫通爪部10aを折り曲げて爪接続部11bに係止させることによって貫通爪部10aと爪接続部11b、ひいては天井裏側取付部材11と天井材貫通取付部材10を接続する構成に限定する必要もない。   In addition, if the claw connection part 11b can be locked to the penetration nail | claw part 10a and the ceiling back side attachment member 11 and the ceiling material penetration attachment member 10 can be connected, it is necessary to limit the angle which bends the penetration claw part 10a. There is no. Moreover, if it is possible to connect the ceiling back side attachment member 11 and the ceiling material penetration attachment member 10, the penetration nail | claw part 10a and a nail | claw connection part are obtained by bend | folding the penetration nail | claw part 10a and latching it to the claw connection part 11b. It is not necessary to limit to the structure which connects 11b and by extension, the ceiling back side attachment member 11 and the ceiling material penetration attachment member 10. FIG.

吊元部材12は、例えば板厚が1mm前後の溶融亜鉛めっき鋼板等を用いた金属製の部材であり、図1及び図2に示すように、天井材支持部材1のTバーに一体に取り付けられる。また、本実施形態の吊元部材12は、平板状に形成されるとともに吊り材13の他端を接続するための吊り材接続孔12aが貫通形成された吊り材取付部12bと、吊り材取付部12aに一端を接続して延設され、Tバー1の吊りボルト接続部1bに例えばボルトなどで取り付けて固定される支持部材取付固定部12cとを備えて形成されている。   The suspension member 12 is a metal member using, for example, a hot-dip galvanized steel sheet having a thickness of about 1 mm, and is integrally attached to the T bar of the ceiling material support member 1 as shown in FIGS. 1 and 2. It is done. Further, the suspension member 12 of the present embodiment is formed in a flat plate shape, and a suspension member attachment portion 12b in which a suspension member connection hole 12a for connecting the other end of the suspension member 13 is formed, and suspension member attachment One end is connected to the portion 12a and extends, and the support member mounting fixing portion 12c is fixed to the suspension bolt connecting portion 1b of the T-bar 1 by, for example, bolts.

本実施形態の吊り材13は、例えば、線径が1mm前後でSUS304などの金属製のワイヤーロープ(吊りロープ)を備え、図2、図4、図5に示すように、一端を吊り材接続孔11dに挿通させつつワイヤーロープ自身に固結して、この一端側を環状に形成することで天井裏側取付部材11に接続されている。また、吊り材13は、他端にクリップ13aが取り付けられており、このクリップ13aを吊り材接続孔12aに係合させることによって、着脱可能に吊元部材12に接続される。本実施形態において、クリップ13aとしては、例えば鉄製でニッケルめっき仕上げを施した茄子カンなどを適用することができる。また、吊り材13の長さt3は200mm程度にすることが好ましい。   The suspension member 13 of the present embodiment includes, for example, a metal wire rope (suspending rope) such as SUS304 having a wire diameter of about 1 mm, and one end is connected to the suspension member as shown in FIGS. While being inserted into the hole 11d, the wire rope itself is solidified, and this one end side is formed in an annular shape so as to be connected to the ceiling back side mounting member 11. Moreover, the clip 13a is attached to the other end of the suspension member 13, and the clip 13a is detachably connected to the suspension base member 12 by engaging the suspension member connection hole 12a. In the present embodiment, as the clip 13a, for example, an insulator made of iron and nickel-plated can be used. Further, the length t3 of the suspension member 13 is preferably about 200 mm.

なお、本実施形態では、吊り材13がクリップ13aを備えたワイヤーロープ(吊りロープ)であるものとしたが、本発明に係る吊り材は、一端を天井裏側取付部材11に、他端を吊元部材12に接続して天井材を支持することが可能であればよく、例えばバネなどであってもよい。   In this embodiment, the suspending material 13 is a wire rope (suspending rope) provided with a clip 13a. However, the suspending material according to the present invention has one end suspended from the ceiling back side mounting member 11 and the other end suspended. What is necessary is just to be able to connect to the original member 12 and to support a ceiling material, for example, a spring etc. may be sufficient.

上記構成からなる本実施形態の天井材脱落防止機構Cは、2つの貫通爪部10aを貫通させて天井材貫通取付部材10を天井材3に取り付け、天井裏に突出した各貫通爪部10aを爪挿通孔11cに挿通するとともに折り曲げることによって、天井材貫通取付部材10を天井裏側取付部材11に接続する。さらに、支持部材取付固定部12cをTバー1の吊りボルト接続部1bにボルトなどを用いて取り付け、Tバー1に吊元部材12を取り付ける。さらに、予め天井材裏側取付部材11の吊り材接続孔11dに一端を接続して設けられた吊り材13を、吊り材接続孔12aにクリップ13aを取り付けて吊元部材12に接続する。   The ceiling material drop-off prevention mechanism C of the present embodiment having the above-described configuration attaches the ceiling material penetration mounting member 10 to the ceiling material 3 through the two penetration claws 10a, and each of the penetration claws 10a protruding to the back of the ceiling. The ceiling material penetrating mounting member 10 is connected to the ceiling back side mounting member 11 by being inserted into the claw insertion hole 11c and bent. Further, the support member attachment fixing portion 12 c is attached to the suspension bolt connecting portion 1 b of the T bar 1 using a bolt or the like, and the suspension member 12 is attached to the T bar 1. Further, the suspension member 13 provided in advance with one end connected to the suspension member connection hole 11d of the ceiling member rear side attachment member 11 is connected to the suspension member 12 by attaching the clip 13a to the suspension member connection hole 12a.

このような簡易な操作によって、吊り材13など(天井材脱落防止機構C)を介してTバー1と天井材3が繋がる。これにより、地震時に、天井構造Bが揺れ、側端部がTバー1から外れて天井材3が脱落しそうになっても、ワイヤーロープを備えてなる吊り材13を通じてTバー1に接続されていることで、外れた天井材3が吊り下げ支持され、脱落が防止される。   By such a simple operation, the T-bar 1 and the ceiling material 3 are connected via the hanging material 13 or the like (ceiling material drop prevention mechanism C). As a result, even if the ceiling structure B is shaken and the side end part is detached from the T-bar 1 and the ceiling material 3 is likely to fall off during an earthquake, the ceiling structure B is connected to the T-bar 1 through the suspension member 13 provided with a wire rope. As a result, the detached ceiling material 3 is suspended and supported, and is prevented from falling off.

〔実施例〕
ここで、本実施形態の天井材脱落防止機構Cの性能を確認した試験結果について説明する。この性能試験では、静的引張試験と実大落下試験の2種の試験を実施した。
〔Example〕
Here, the test result which confirmed the performance of the ceiling material drop-off prevention mechanism C of the present embodiment will be described. In this performance test, two types of tests were conducted: a static tensile test and a full-scale drop test.

まず、静的引張試験では、板厚が15mmの岩綿吸音板(天井材3)に、板厚が0.8mm、長さが55mm、幅t1が4mmの2つの貫通爪部10aと、板厚が0.8mm、縦横20mm×20mmの係止部10bとを備えて形成した天井材貫通取付部材10を取り付け、この天井材貫通取付部材10の貫通爪部10aを40〜50°の角度で折り曲げて貫通爪部10aに爪接続部11bを係止させて天井裏側取付部材11と天井材貫通取付部材10とを接続した。   First, in the static tensile test, a rock wool sound absorbing board (ceiling material 3) having a board thickness of 15 mm, two penetrating claws 10a having a board thickness of 0.8 mm, a length of 55 mm, and a width t1 of 4 mm, and a board A ceiling material penetrating attachment member 10 formed with a locking portion 10b having a thickness of 0.8 mm and a length and width of 20 mm × 20 mm is attached, and the penetrating claw portion 10a of the ceiling material penetrating attachment member 10 is at an angle of 40 to 50 °. The ceiling back side attachment member 11 and the ceiling material penetration attachment member 10 were connected by bending and engaging the claw connection part 11b with the penetration claw part 10a.

そして、ワイヤーロープの吊り材13を天井材貫通取付部材10と吊元部材12に接続し、岩綿吸音板(天井材3)を押さえながら吊元部材を上方に引張り、天井裏側取付部材11と天井材貫通取付部材10の接続最大荷重を計測した。この結果、3度行った静的引張試験で、最大荷重が76.6N、89.6N、81.4N、平均最大荷重82.6Nとなり、岩綿吸音板(天井材3)の脱落を十分に防止し得る非常に大きな荷重を支持できることが確認された。   The wire rope suspension member 13 is connected to the ceiling material penetrating attachment member 10 and the suspension base member 12, and the suspension base member is pulled upward while holding the rock wool sound absorbing plate (ceiling material 3), and the ceiling back side attachment member 11 and The connection maximum load of the ceiling material penetration mounting member 10 was measured. As a result, in the static tensile test conducted three times, the maximum load was 76.6N, 89.6N, 81.4N, and the average maximum load was 82.6N, and the rock wool sound absorbing board (ceiling material 3) was sufficiently removed. It was confirmed that a very large load that could be prevented could be supported.

次に、実大落下試験では、板厚が15mm、縦横400×1825mm、重量3.65kgの岩綿吸音板(天井材3)に、静的引張試験と同様に天井裏側取付部材11と天井材貫通取付部材10とを取り付け、さらに、ワイヤーロープの吊り材13を天井材貫通取付部材10と吊元部材12に接続した。   Next, in the full-scale drop test, a ceiling back side mounting member 11 and a ceiling material were applied to a rock wool sound absorbing board (ceiling material 3) having a plate thickness of 15 mm, length and width of 400 × 1825 mm, and a weight of 3.65 kg, as in the static tensile test. The through attachment member 10 was attached, and the wire rope suspension 13 was connected to the ceiling material penetration attachment member 10 and the suspension base member 12.

このとき、実大落下試験では、天井材貫通取付部材10の貫通爪部10aを爪接続部11bに係止させる際に、ケース1とケース2では、折り曲げ角度を40°とし、ケース3では、折り曲げ角度を図4のように略180°にした。そして、ケース1では300mm、ケース2とケース3では200mmの落下高さで岩綿吸音板(天井材3)を落下させ、天井材脱落防止機構Cの状態を確認した。なお、この落下高さは、吊り材13の長さを意味する。   At this time, in the full-scale drop test, when the penetration claw portion 10a of the ceiling material penetration mounting member 10 is locked to the claw connection portion 11b, the bending angle is 40 ° in case 1 and case 2, and in case 3, The bending angle was approximately 180 ° as shown in FIG. The rock wool sound absorbing board (ceiling material 3) was dropped at a drop height of 300 mm for case 1 and 200 mm for case 2 and case 3, and the state of the ceiling material dropout prevention mechanism C was confirmed. In addition, this fall height means the length of the suspension material 13.

この結果、折り曲げ角度40°で落下高さ300mmのケース1では、折り曲げた貫通爪部10aが開いてしまい、天井材3の脱落のおそれが確認された。次に、折り曲げ角度40°で落下高さ200mmのケース2では、折り曲げた貫通爪部10aの開きが小さく、天井材3が十分に保持されることが確認された。さらに、折り曲げ角度180°で落下高さ200mmのケース3では、3回の落下試験を繰り返し行っても、折り曲げた貫通爪部10aの開きが生じることがなく、確実に天井材3が保持できることが確認された。   As a result, in case 1 having a folding angle of 40 ° and a drop height of 300 mm, the bent through claw portion 10a was opened, and it was confirmed that the ceiling material 3 might fall off. Next, in case 2 with a folding angle of 40 ° and a drop height of 200 mm, it was confirmed that the opening of the bent through claw portion 10a was small and the ceiling material 3 was sufficiently held. Furthermore, in the case 3 with a bending angle of 180 ° and a drop height of 200 mm, even if the drop test is repeated three times, the bent through claw portion 10a does not open and the ceiling material 3 can be reliably held. confirmed.

この結果から、本実施形態の天井材脱落防止機構Cにおいては、天井材貫通取付部材10の貫通爪部10aを爪接続部11bに係止させる際に折り曲げ角度を略180°にし、吊り材13の長さを200mm程度にすることによって、天井材3の脱落をより確実に防止できることが確認された。   From this result, in the ceiling material drop prevention mechanism C of the present embodiment, when the penetration claw portion 10a of the ceiling material penetration mounting member 10 is locked to the claw connection portion 11b, the bending angle is set to about 180 °, and the suspension material 13 It was confirmed that the falling of the ceiling material 3 can be more reliably prevented by setting the length of the wall to about 200 mm.

したがって、本実施形態の天井材脱落防止機構Cにおいては、天井面3a側から天井材3に貫通爪部10aを貫通させて天井材貫通取付部材10を取り付け、貫通した貫通爪部10aに接続して天井裏側取付部材11を天井材3の裏面側に取り付け、さらに、吊元部材12をTバーなどの天井材支持部材1に取り付ける。そして、ワイヤーロープなどの吊り材13を天井裏側取付部材11と吊元部材12にそれぞれ接続して設けることにより、容易に吊り材13を通じて天井材3と天井材支持部材1を接続することができる。   Therefore, in the ceiling material drop-off prevention mechanism C of the present embodiment, the ceiling material penetrating attachment member 10 is attached by penetrating the through claw portion 10a from the ceiling surface 3a to the ceiling material 3 and connected to the penetrating through claw portion 10a. The ceiling back side attachment member 11 is attached to the back side of the ceiling material 3, and the suspension member 12 is attached to the ceiling material support member 1 such as a T-bar. And the ceiling material 3 and the ceiling material support member 1 can be easily connected through the suspension material 13 by providing the suspension material 13, such as a wire rope, by connecting to the ceiling back side attachment member 11 and the suspension base member 12, respectively. .

また、天井裏に突出した貫通爪部10aを折り曲げて爪接続部11bを挟み込み、貫通爪部10aと爪接続部11bを係止させて天井材貫通取付部材10と天井裏側取付部材11を容易に且つ強固に接続することができる。これにより、より容易に且つ確実に天井材3と天井材支持部材1を接続することができる。   Further, the penetrating claw portion 10a protruding to the back of the ceiling is bent to sandwich the claw connecting portion 11b, and the penetrating claw portion 10a and the claw connecting portion 11b are locked to easily attach the ceiling material penetrating mounting member 10 and the ceiling back side mounting member 11 to each other. And it can connect firmly. Thereby, the ceiling material 3 and the ceiling material support member 1 can be connected more easily and reliably.

よって、本実施形態の天井材脱落防止機構C及びこれを備えた天井構造Bによれば、地震時に側端部が天井材支持部材1から外れ、天井材3が脱落しそうになっても、吊り材13を通じて天井材支持部材1に接続されているため、天井材3が脱落することを防止できる。また、この天井材脱落防止機構Cは、新設は勿論、既設の天井部の構造にも容易に取り付けて適用することが可能である。   Therefore, according to the ceiling material drop-off prevention mechanism C and the ceiling structure B including the same according to the present embodiment, even if the side end portion is detached from the ceiling material support member 1 and the ceiling material 3 is likely to fall off during an earthquake, the suspension is suspended. Since it is connected to the ceiling material support member 1 through the material 13, it is possible to prevent the ceiling material 3 from falling off. Moreover, this ceiling material drop prevention mechanism C can be easily installed and applied to a structure of an existing ceiling portion as well as a new installation.

以上、本発明に係る天井材脱落防止機構及びこれを備えた天井構造の一実施形態について説明したが、本発明は上記の一実施形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。   As mentioned above, although one embodiment of the ceiling material drop prevention mechanism and the ceiling structure provided with the same according to the present invention has been described, the present invention is not limited to the above-described one embodiment, and does not depart from the spirit thereof. It can be changed as appropriate.

例えば、本実施形態では、天井構造が、天井材支持部材1としてTバーを備え、このTバーに天井材3の天井パネルを支持させて構成され、この天井構造Bに天井材脱落防止機構Cが具備されているのもとしたが、例えば野縁と野縁受けなどの天井下地材を天井材支持部材として備えてなる天井構造に天井材脱落防止機構Cを適用してもよく、特に天井構造の構成を本実施形態のように限定する必要はない。   For example, in the present embodiment, the ceiling structure includes a T-bar as the ceiling material support member 1 and is configured by supporting the ceiling panel of the ceiling material 3 on the T-bar. However, the ceiling material drop-off preventing mechanism C may be applied to a ceiling structure including a ceiling base material such as a field edge and a field edge support as a ceiling material support member. It is not necessary to limit the structure of the structure as in this embodiment.

1 Tバー(天井材支持部材)
2 吊りボルト(吊り部材)
3 天井材(天井パネル)
3a 天井面
3b 側端部
3c 裏面
4 補強ブレース
5 ガセットプレート
6 ビス
10 天井材貫通取付部材
10a 貫通爪部
10b 係止部
11 天井裏側取付部材
11a 底部
11b 爪接続部
11c 爪挿通孔
11d 吊り材接続孔
12 吊元部材
12a 吊り材接続孔
12b 吊り材取付部
12c 支持部材取付固定部
13 吊り材
13a クリップ
A 従来の天井構造
B 天井構造
C 天井材脱落防止機構
T1 水平の一方向
T2 水平の他方向
T3 上下方向
1 T bar (ceiling support member)
2 Suspension bolt (suspending member)
3 Ceiling materials (ceiling panels)
3a Ceiling surface 3b Side end 3c Back surface 4 Reinforcement brace 5 Gusset plate 6 Screw 10 Ceiling material penetration mounting member 10a Through claw portion 10b Locking portion 11 Ceiling back side mounting member 11a Bottom portion 11b Claw connection portion 11c Claw insertion hole 11d Hanging material connection Hole 12 Suspension member 12a Suspension material connection hole 12b Suspension material attachment portion 12c Support member attachment fixing portion 13 Suspension material 13a Clip A Conventional ceiling structure B Ceiling structure C Ceiling material drop prevention mechanism T1 Horizontal one direction T2 Horizontal other direction T3 vertical direction

Claims (2)

建物の構造体に支持させて設けられた天井材支持部材と、該天井材支持部材に取り付けられて天井面を形成する板状の天井材とを備えてなる天井構造の前記天井材の脱落を防止するための機構であって、
前記天井面側から天井裏に突出するように前記天井材に貫通させる貫通爪部、及び該貫通爪部の一端に接続して一体形成され、前記貫通爪部を前記天井材に貫通させるとともに前記天井面に当接して係止される係止部からなる天井材貫通取付部材と、
前記天井材の裏面側に配設されるとともに、前記貫通爪部に接続し、前記天井材貫通取付部材を介して前記天井材と一体に設けられる天井裏側取付部材と、
前記天井材支持部材に一体に取り付けられる吊元部材と、
一端を前記天井裏側取付部材に、他端を前記吊元部材にそれぞれ接続して設けられる吊り材とを備え、
且つ、前記天井材貫通取付部材が、板状の前記係止部と、前記係止部の周端に一端を接続し、前記係止部の前記天井面に接する板面に略直交して突設された前記貫通爪部とを備え、
前記天井裏側取付部材が、前記天井材の裏面に当接する板状の底部と、一端を底部に接続し、略直交して突設された板状の爪接続部とを備え、
前記貫通爪部を前記天井材に貫通させて前記天井材貫通取付部材を配設するとともに、前記天井裏に突出した前記貫通爪部を折り曲げて前記貫通爪部に前記爪接続部を係止させ、前記天井材貫通取付部材と前記天井裏側取付部材を接続するように構成されていることを特徴とする天井材脱落防止機構。
A ceiling material support member provided to be supported by a structure of a building and a plate-like ceiling material that is attached to the ceiling material support member and forms a ceiling surface. A mechanism for preventing,
A penetrating claw portion that penetrates the ceiling material so as to protrude from the ceiling surface side to the ceiling, and is integrally connected to one end of the penetrating claw portion, penetrating the penetrating claw portion through the ceiling material and A ceiling material penetrating mounting member composed of a locking portion that is locked in contact with the ceiling surface;
A ceiling back side mounting member disposed on the back side of the ceiling material, connected to the penetrating claw portion, and provided integrally with the ceiling material via the ceiling material penetration mounting member;
A suspension member attached integrally to the ceiling material support member;
A suspension member provided with one end connected to the ceiling back side mounting member and the other end connected to the suspension base member,
Further, the ceiling material penetrating mounting member has one end connected to the plate-shaped locking portion and a peripheral end of the locking portion, and protrudes substantially perpendicular to the plate surface in contact with the ceiling surface of the locking portion. The penetrating claw portion provided,
The ceiling back side mounting member includes a plate-like bottom portion that comes into contact with the back surface of the ceiling material, and a plate-like claw connection portion that protrudes substantially orthogonally, with one end connected to the bottom portion,
The ceiling material penetrating attachment member is disposed by penetrating the through claw portion through the ceiling material, and the through claw portion protruding to the back of the ceiling is bent to lock the claw connecting portion to the through claw portion. The ceiling material drop-off preventing mechanism is configured to connect the ceiling material penetration mounting member and the ceiling back side mounting member.
建物の構造体に支持させて設けられた天井材支持部材と、該天井材支持部材に取り付けられて天井面を形成する板状の天井材と、請求項1記載の天井材脱落防止機構とを備えて構成されていることを特徴とする天井構造。 A ceiling material support member provided to be supported by a structure of a building, a plate-like ceiling material that is attached to the ceiling material support member to form a ceiling surface, and the ceiling material drop prevention mechanism according to claim 1. A ceiling structure characterized by comprising.
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