JP6512462B2

JP6512462B2 - Suspended ceiling structure

Info

Publication number: JP6512462B2
Application number: JP2017223829A
Authority: JP
Inventors: 記彦櫻庭
Original assignee: Shimizu Corp
Current assignee: Shimizu Corp
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2019-05-15
Anticipated expiration: 2033-10-07
Also published as: JP2018048551A

Description

本発明は、吊り天井構造に関する。 The present invention also relates to a suspended ceiling structure.

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４に示すように、水平の一方向Ｔ１に所定の間隔をあけ、一方向Ｔ１に直交する他方向Ｔ２に延び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、天井下地２０）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（吊り部材）２と、一方向Ｔ１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吊り天井構造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 part of a building. For example, as shown in FIG. 4, a plurality of T-bars (a ceiling material with an inverted T-shaped cross section) are provided side by side with a predetermined interval in one horizontal direction T1 and extending in another direction T2 orthogonal to the one direction T1. A plurality of suspension bolts (suspension members) 2 disposed by fixing the support member, the ceiling base 20) 1 and the upper end side to the floor material (upper structure) of the upper floor and the like and connecting the lower end side to the T bar 1 And a line ceiling configured with a ceiling material (ceiling panel) 3 disposed to bridge the T-bar 1 adjacent to one direction T1 to form a ceiling surface 3a There is a ceiling structure A (see, for example, Patent Document 1).

また、このようなライン式の吊り天井構造Ａなどにおいては、天井材３に大重量の設備機器を取り付けたり、天井材３に輻射パネルを用いることがあり、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４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。 In addition, in such a line-type suspended ceiling structure A or the like, large-capacity equipment may be attached to the ceiling material 3 or a radiation panel may be used for the ceiling material 3, and the response during a large earthquake becomes large. As a result, the vehicle swings with a large swing width and collides with the surrounding wall etc., which may cause damage to the ceiling material 3 and the equipment. Therefore, conventionally, as shown in FIG. 4, the upper end side is connected to the upper structure etc., the lower end side is connected to the T-bar 1 and the reinforcement brace 4 is provided, etc. To reduce the

一方、図４及び図５に示すように、Ｔバー（天井材支持部材）１は、吊りボルト２の下端が接続される接続部５と、接続部５の下端に繋がり、接続部５から下方に延設された連接部６と、連接部６の下端に繋がり、水平の一方向Ｔ１両側に延びる板状の支持部７とを備えて断面逆Ｔ字型に形成されている。さらに、Ｔバー１は、略平板状の連接部６に対して幅方向（Ｔ１）両外側に膨出するように接続部５が一体形成して設けられている。そして、接続部５と吊りボルト２の下端側に吊り部材接続用金具（ハンガー）８を接続し、この吊り部材接続用金具８を介してＴバー１が吊りボルト２に吊り下げ支持される。 On the other hand, as shown in FIG. 4 and FIG. 5, the T-bar (ceiling material support member) 1 is connected to the connecting portion 5 to which the lower end of the suspension bolt 2 is connected and the lower end of the connecting portion 5. And a support portion 7 connected to the lower end of the connection portion 6 and extending on both sides in one horizontal direction T1 to form an inverted T-shaped cross section. Further, the T-bar 1 is integrally formed with the connecting portion 5 so as to expand outward in the width direction (T1) with respect to the substantially flat connecting portion 6. Then, the connection member 5 and the lower end side of the suspension bolt 2 are connected to a suspension member connection bracket (hanger) 8, and the T-bar 1 is suspended and supported by the suspension bolt 2 via the suspension member connection bracket 8.

また、図５に示すように、吊り部材接続用金具８は一対の接続用金具片９，１０を備えてなり、一方の接続用金具片９が、断面視で、下端にＴバー１の接続部５の一側部側に係合する係合凹部９ａと、係合凹部９ａの上端から上方に延設された接続板部９ｂとを備えて形成されている。他方の接続用金具片１０は、断面視で、下端にＴバー１の接続部５の他側部側に係合する係合凹部１０ａと、係合凹部１０ａの上端から上方に突設され、一方の接続用金具片９の接続板部９ｂに接続する接続板部１０ｂとを備えて形成されている。 Further, as shown in FIG. 5, the hanging member connecting fitting 8 includes a pair of connecting fitting pieces 9 and 10, and one connecting fitting piece 9 is connected to the T-bar 1 at the lower end in a cross sectional view. An engagement recess 9a engaged with one side of the portion 5 and a connection plate 9b extending upward from the upper end of the engagement recess 9a are formed. The other connection fitting piece 10 is projected upward from the upper end of the engagement recess 10a engaged with the other side of the connection portion 5 of the T-bar 1 at the lower end, and the upper end of the engagement recess 10a. A connection plate portion 10b connected to the connection plate portion 9b of one of the connection fitting pieces 9 is formed.

そして、この吊り部材接続用金具８は、一方の接続用金具片９の係合凹部９ａと他方の接続用金具片１０の係合凹部１０ａとをそれぞれＴバー１の接続部５を内包するように係合させ、一方の接続用金具片９の接続板部９ｂに他方の接続用金具片１０の接続板部１０ｂを接続して設置される。また、吊りボルト２の下端側を一方の接続用金具片９の接続板部９ｂに接続する。これにより、Ｔバー１の接続部５が一方の接続用金具片９の係合凹部９ａと他方の接続用金具片１０の係合凹部１０ａとによって係止され、吊り部材接続用金具８を介して吊りボルト２にＴバー１ひいては天井材３が吊り下げ支持される。 Then, the suspension member connecting fitting 8 includes the connecting portion 5 of the T-bar 1 so that the engaging recess 9 a of one connecting fitting piece 9 and the engaging recess 10 a of the other connecting fitting piece 10 are each included. , And the connection plate portion 10b of the other connection fitting piece 10 is connected to the connection plate portion 9b of the one connection fitting piece 9 and installed. Further, the lower end side of the suspension bolt 2 is connected to the connection plate portion 9 b of one of the connection fitting pieces 9. As a result, the connection portion 5 of the T-bar 1 is locked by the engagement recess 9a of the one connection fitting piece 9 and the engagement recess 10a of the other connection fitting piece 10, and the suspension member connection fitting 8 is used. The T-bar 1 and thus the ceiling material 3 are suspended and supported by the suspension bolt 2.

また、このとき、一方の接続用金具片９の接続板部９ｂと他方の接続用金具片１０の接続板部１０ｂとを上部ボルト（ボルト）１１でボルト接合する。さらに、Ｔバー１の接続部５と他方の接続用金具片１０の係合凹部１０ａ（及び／又は一方の接続用金具片９の係合凹部９ａ）とをビス留めしたり、ボルト接合するケースもある。 Further, at this time, the connection plate portion 9 b of one of the connection fitting pieces 9 and the connection plate portion 10 b of the other connection fitting piece 10 are bolted together with the upper bolt (bolt) 11. Furthermore, a case for screwing or bolting the connection portion 5 of the T-bar 1 and the engagement recess 10a of the other connection fitting piece 10 (and / or the engagement recess 9a of one connection fitting piece 9) There is also.

特開２００５−３５０９５０号公報JP 2005-350950 A

しかしながら、上記従来の吊り天井構造においては、吊り部材接続用金具の一対の接続用金具片が接続板部の下端に係合凹部を設けただけで形成され、Ｔバーの接続部に対し、上部ボルトの締め込みによる一対の係合凹部の摩擦力で接続支持するように構成されている。このため、鉛直方向に地震力、振動などの外力が作用すると、摩擦力が不足して一対の係合凹部から接続部が引き抜けてしまうおそれがあった。 However, in the conventional suspended ceiling structure described above, the pair of connecting fitting pieces of the hanging member connecting fitting is formed only by providing the engaging recess at the lower end of the connecting plate portion, and the upper portion of the connecting portion of the T-bar It is comprised so that connection support may be carried out by the frictional force of a pair of engagement recessed part by bolt tightening. For this reason, when an external force such as seismic force or vibration acts in the vertical direction, there is a possibility that the frictional force is insufficient and the connecting portion is pulled out from the pair of engagement concave portions.

また、吊り部材接続用金具の接続用金具片の係合凹部とＴバーの接続部をビス留めした場合においても、鉛直方向に地震力、振動などの外力が作用した際に、Ｔバーの接続部のビス留め部分に局所的に大きな力が作用してしまい、この部分が損傷し、やはり、一対の係合凹部から接続部が引き抜けるおそれがあった。 In addition, even when external force such as seismic force or vibration is applied in the vertical direction, even when the engagement recess of the connection fitting piece of the suspension member connection fitting and the connection portion of the T-bar are screwed, the connection of the T-bar A large force locally acts on the screwing portion of the part, which may be damaged and the connecting part may be pulled out of the pair of engaging recesses.

そして、このように吊り部材接続用金具とＴバーの接続状態が解除されてしまうと、天井下地、天井材の脱落や破損を招くことになる。 And if the connection state of the metal fitting for suspension member connection and T bar is cancelled | released in this way, drop-off and damage of a ceiling base and a ceiling material will be caused.

本発明は、上記事情に鑑み、吊り部材接続用金具と天井下地をより強固に接続すること
ができ、天井材の落下等をより確実に抑止することを可能にする吊り天井構造を提供することを目的とする。 In view of the above circumstances, the hanging member connecting fitting and the ceiling foundation can be made more strongly connected to provide a false ceiling structure makes it possible to suppress a drop or the like of the ceiling member more reliably The purpose is

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.

本発明の吊り天井構造は、建物の上部構造から鉛直方向に沿って延びる吊り部材を介して吊り下げ支持され、水平の一方向及び／又は前記一方向に直交する水平の他方向に所定の間隔をあけ、前記他方向及び／又は前記一方向に延設される天井材支持部材と、前記天井材支持部材に支持されて天井面を形成する板状の天井材とを備える吊り天井構造であって、前記天井材支持部材が、前記吊り部材の下端が吊り部材接続用金具を介して接続される接続部と、前記接続部の下端に繋がり、前記接続部から下方に延設された連接部と、前記連接部の下端に繋がり、前記一方向両側に延びる板状の支持部とを備えて断面逆Ｔ字型に形成されており、前記吊り部材接続用金具は、一対の接続用金具片を備え、一方の接続用金具片が、前記天井材支持部材の接続部の一側部側に係合する係合凹部と、前記係合凹部の上端から上方に延設され、貫通形成された上部ボルト挿通孔を有する接続板部とを備えるとともに、前記係合凹部の下端から前記天井材支持部材の連接部に沿って下方に延設され、貫通形成された下部ボルト挿通孔を有する係止片部を備えて形成され、他方の接続用金具片が、前記天井材支持部材の接続部の他側部側に係合する係合凹部と、前記係合凹部の上端から上方に突設され、貫通形成された上部ボルト挿通孔を有し、前記一方の接続用金具片の接続板部に接続される接続板部とを備えるとともに、前記係合凹部の下端から前記天井材支持部材の連接部に沿って下方に延設され、貫通形成された下部ボルト挿通孔を有する係止片部を備えて形成され、前記天井材支持部材の連接部に、前記一方の接続用金具片と前記他方の接続用金具片の係止片部に形成された前記下部ボルト挿通孔と互いに連通する下部ボルト挿通孔が形成され、前記一方の接続用金具片と前記他方の接続用金具片の係合凹部を前記天井材支持部材の接続部に係合させつつ、前記一方の接続用金具片と前記他方の接続用金具片の接続板部に形成された前記上部ボルト挿通孔にボルトを挿通して接合し、前記天井材支持部材を前記吊り部材に接続するとともに、前記一方の接続用金具片と前記他方の接続用金具片の係止片部と前記天井材支持部材の連接部に形成された前記下部ボルト挿通孔にボルトを挿通し、前記吊り部材接続用金具の前記一方の接続用金具片及び前記他方の接続用金具片の係止片部と、前記天井材支持部材の連接部とを接続するように構成され、前記吊り部材接続用金具の前記一方の接続用金具片及び前記他方の接続用金具片の係合凹部と、前記天井材支持部材の接続部とにそれぞれ、互いに連通する補強ボルト挿通孔が形成され、これらの補強ボルト挿通孔にボルトを挿通し、前記吊り部材接続用金具の前記一方の接続用金具片及び前記他方の接続用金具片の係合凹部と、前記天井材支持部材の接続部とを接続するように構成され、上下方向において、前記吊り部材接続用金具の前記一方の接続用金具片又は前記他方の接続用金具片と前記天井材支持部材が複数のボルト挿通孔に挿通された２本のボルトで直接固定され、前記一方の接続用金具片における前記係合凹部より上側には上下方向に沿って直線状に延材する部分が設けられ、前記接続板部及び前記係止片部は上下方向に沿って直線状に延材し、前記天井材支持部材の接続部は、稠密であって、前記天井材支持部材の連接部の上端から幅方向の外側に膨出し、前記天井材支持部材の連接部は上下方向に沿って直線状に延材していることを特徴とする。 The suspended ceiling structure of the present invention is suspended and supported via a suspending member extending along the vertical direction from the upper structure of the building, and has a predetermined distance in one horizontal direction and / or another horizontal direction orthogonal to the one direction. A suspended ceiling structure provided with a ceiling material support member extended in the other direction and / or the one direction, and a plate-like ceiling material supported by the ceiling material support member to form a ceiling surface. The ceiling material support member is connected to a connecting portion where the lower end of the hanging member is connected via the hanging member connecting fitting and a lower end of the connecting portion, and a connecting portion extending downward from the connecting portion And a plate-like support portion connected to the lower end of the connecting portion and extending to both sides in one direction, and formed in an inverted T-shape in cross section, and the suspension member connecting fitting includes a pair of connecting fitting pieces And one of the connection fitting pieces is the ceiling material support portion. An engagement recess engaged with one side of the connection portion, and a connection plate portion extending upward from the upper end of the engagement recess and having an upper bolt insertion hole formed therethrough; A locking piece is formed extending downward from the lower end of the joint recess along the connecting portion of the ceiling material support member and having a lower bolt insertion hole formed through, and the other connection fitting piece is formed by It has an engagement recess engaged with the other side of the connection portion of the ceiling material support member, and an upper bolt insertion hole formed to protrude upward from the upper end of the engagement recess and formed, And a connection plate portion connected to the connection plate portion of the connection fitting piece, and extending downward from the lower end of the engagement recess along the connecting portion of the ceiling material support member, and being formed through the lower portion A locking piece having an insertion hole, and the ceiling material supporting member A lower bolt insertion hole communicating with the lower bolt insertion hole formed in the locking piece of the one connection fitting piece and the other connection fitting piece is formed in the contact portion, and the one connection is formed The engaging concave portions of the metal fitting piece and the other connecting metal fitting piece are formed in the connecting plate parts of the one connecting metal fitting piece and the other connecting metal fitting piece while engaging with the connecting portion of the ceiling material support member The bolt is inserted through and joined to the upper bolt insertion hole, and the ceiling material support member is connected to the suspension member, and the engagement piece of the one connection fitting piece and the other connection fitting piece the bolt is inserted into the ceiling material the lower bolt insertion hole formed in the connecting portion of the support member, locking piece of the one connecting bracket piece and the other connecting fitting piece of the hanging member connecting fittings and Connecting the head and the connecting part of the ceiling material support member Configured as described above, and reinforcement bolt insertions that communicate with each other in the engagement recesses of the one connection fitting piece and the other connection fitting piece of the suspension member connection fitting and the connection portion of the ceiling material support member Holes are formed, bolts are inserted through these reinforcing bolt insertion holes, engagement recesses of the one connection fitting piece and the other connection fitting piece of the suspension member connection fitting, and the ceiling material support member And the ceiling material support member is provided with a plurality of bolt insertion holes in the up and down direction. A portion extending straight in the up-and-down direction above the engagement recess in the one of the connection fitting pieces, the connection plate portion and the connection plate portion The locking piece is The connection member of the ceiling material support member is dense and extends outward from the upper end of the connecting portion of the ceiling material support member in the width direction, and the ceiling material support member The connecting portion of the member is characterized by extending linearly in the vertical direction .

また、本発明の吊り天井構造においては、前記吊り部材接続用金具の前記一方の接続用金具片と前記他方の接続用金具片の係合凹部の下端側には、内面から突出して前記天井材支持部材の接続部の下端部分に係合する突部が形成されていることが望ましい。 Further, in the suspended ceiling structure of the present invention, the ceiling material protrudes from the inner surface to the lower end side of the engagement concave portion of the one connection fitting piece of the suspension member connection fitting and the other connection fitting piece. Preferably, a projection is formed to engage with the lower end portion of the connection portion of the support member.

また、本発明の吊り天井構造においては、前記吊り部材接続用金具の前記一方の接続用金具片と前記他方の接続用金具片の接続板部に、係止孔と該係止孔に挿入して係止される係止部とが設けられ、前記係止孔に前記係止部を挿入して係止させつつ前記一方の接続用金具片と前記他方の接続用金具片の係合凹部を前記天井材支持部材の接続部に係合させることが望ましい。 Further, in the suspended ceiling structure of the present invention, the locking hole and the locking hole are inserted into the connection plate portions of the one connection fitting piece and the other connection fitting piece of the suspension member connection fitting. And a locking portion to be locked, and the locking portion is inserted into the locking hole and locked while the engagement recess of the one connection fitting piece and the other connection fitting piece Preferably, the connection portion of the ceiling material support member is engaged.

また、本発明の吊り天井構造においては、前記吊り部材接続用金具は、平面視で前記天井材支持部材の延設方向に直交する方向に延設された補強ブレースによって支持されていることが望ましい。 Further, in the suspended ceiling structure of the present invention, it is preferable that the metal fitting for hanging member connection is supported by a reinforcing brace extended in a direction orthogonal to the extending direction of the ceiling material supporting member in plan view. .

本発明の吊り天井構造においては、吊り部材接続用金具の一方の接続用金具片の係合凹部と他方の接続用金具片の係合凹部とをそれぞれ断面逆Ｔ型の天井材支持部材の接続部を内包するように係合させ、一方の接続用金具片の接続板部と他方の接続用金具片の接続板部を上部ボルトの締め込みによってボルト接合することにより、一方の接続用金具片と他方の接続用金具片の一対の係合凹部によって天井材支持部材の接続部を挟持することができ、これに伴う摩擦力と係合力をもって吊り部材接続用金具と天井材支持部材（接続部）を接続することができる。 Oite the suspended ceiling structure of the present invention, the hanging members one connection bracket piece of the engaging recess and the other of the ceiling member supporting the engaging recess of the respective cross-section inverted T-shaped connection brackets piece of the connecting fittings It is engaged so as to enclose the connection part of the member, and the connection plate part of one connection fitting piece and the connection plate part of the other connection fitting piece are bolted together by tightening the upper bolt, thereby achieving one connection. The connecting portion of the ceiling material support member can be held by the pair of engaging recesses of the bracket piece and the other connecting bracket piece, and the friction member and the ceiling material support member with the frictional force and the engaging force associated therewith (Connection part) can be connected.

また、このとき、吊り部材接続用金具の一方の接続用金具片と他方の接続用金具片にそれぞれ、係合凹部の下端から下方に延設される係止片部が設けられているため、係合凹部を天井材支持部材の接続部に係合させて接続するとともに天井材支持部材の連接部に沿って一対の係止片部を延設させることができる。すなわち、一方の接続用金具片の係止片部と他方の接続用金具片の係止片部とによって天井材支持部材の連接部を挟み込むように、吊り部材接続用金具を取り付けることができる。 Further, at this time, since one of the connection fitting piece and the other connection fitting piece of the suspension member connection fitting is provided with a locking piece portion extending downward from the lower end of the engagement recess, The engaging recess can be engaged with and connected to the connection portion of the ceiling material support member, and a pair of locking pieces can be extended along the connecting portion of the ceiling material support member. That is, the hanging member connecting fitting can be attached such that the connecting portion of the ceiling material support member is sandwiched by the locking piece of one connecting fitting piece and the locking piece of the other connecting fitting piece.

これにより、本発明の吊り天井構造においては、鉛直方向に地震力、振動などの外力が作用すると、まず、一方の接続用金具片と他方の接続用金具片の係合凹部が天井材支持部材の接続部に係合していることで、この係合に伴う摩擦力と係合力によって鉛直方向の外力に抵抗させることができる。 Thus, Oite the suspended Ri ceiling structure of the present invention, seismic force in the vertical direction, the external force is applied such as vibration, first, the engagement recess in one of the connection fitting piece and the other connecting bracket piece By engaging with the connection portion of the ceiling material support member, the external force in the vertical direction can be resisted by the frictional force and the engagement force involved in the engagement.

これに加え、一方の接続用金具片と他方の接続用金具片の係止片部が天井材支持部材の連接部を挟み込むように配設されているため、鉛直方向に地震力、振動などの外力が作用した際に、一対の係止片部が開き、これら一対の係止片部の間に天井材支持部材の接続部が入り込むこと（挿通しようとすること）が阻止され、一対の係止片部がそれぞれ天井材支持部材の連接部に当接して天井材支持部材の連接部を挟み込んだ状態を保持することが可能になる。 In addition to this, the locking pieces of one connecting fitting piece and the other connecting fitting piece are disposed so as to sandwich the connecting part of the ceiling material support member, so that seismic force, vibration, etc. are vertically generated. When an external force is applied, the pair of locking pieces opens, and the connection portion of the ceiling material support member is prevented from entering between the pair of locking pieces (it is attempted to be inserted). It becomes possible to hold | maintain the state which pinched | interposed the connection part of a ceiling material support member, each stop piece part contact | abuts to the connection part of a ceiling material support member.

よって、本発明の吊り天井構造によれば、鉛直方向に地震力、振動などの外力が作用した際に、従来のように一方の接続用金具片と他方の接続用金具片の係合凹部が開いてしまい、一対の接続用金具片の係止片部が開いて天井材支持部材の接続部との係合状態が解除され、吊り部材接続用金具から天井材支持部材が引き抜けることを防止することが可能になる。すなわち、鉛直地震力や補強ブレース周りの鉛直方向の地震力に対し、天井材や天井下地の脱落などが生じない信頼性の高い吊り天井構造を実現することが可能になる。 Therefore, according to the suspended ceiling structure of the present invention, seismic force in the vertical direction, when an external force such as vibration is applied, the engaging recess of the conventional way one connection bracket piece and the other connecting bracket piece Is opened, and the locking piece portions of the pair of connection fitting pieces are opened to release the engagement with the connection portion of the ceiling material support member, thereby preventing the ceiling material support member from being pulled out of the suspension member connection fitting It will be possible to That is, it becomes possible to realize a highly reliable suspended ceiling structure in which the ceiling material or the base of the ceiling does not fall off with respect to the vertical seismic force or the vertical seismic force around the reinforcing brace.

また、一対の接続用金具片を設置すると、一方の接続用金具片の係止片部と他方の接続用金具片の係止片部にそれぞれ形成されたボルト挿通孔も天井材支持部材の連接部に貫通形成されたボルト挿通孔を通じて連通し、これら連通したボルト挿通孔に縫いボルトを挿通し、一方の接続用金具片の係止片部及び他方の接続用金具片の係止片部と天井材支持部材の連接部とをボルト接合することができる。これにより、より確実に、一対の接続用金具片の係止片部が開いて天井材支持部材の接続部との係合状態が解除され、吊り部材接続用金具から天井材支持部材が引き抜けることを防止することが可能になる。 In addition, when a pair of connecting fitting pieces are installed, the bolt insertion holes formed respectively in the locking piece of one connecting fitting piece and the locking piece of the other connecting fitting piece are also connected to the ceiling material supporting member Communicating through the bolt insertion holes formed through the part, and the sewing bolt is inserted into the communicated bolt insertion holes, and the locking piece of one of the connection fitting pieces and the locking piece of the other connection fitting piece The connecting portion of the ceiling material support member can be bolted. As a result, the locking piece portions of the pair of connection fitting pieces are more reliably opened, the engagement state with the connection portion of the ceiling material support member is released, and the ceiling material support member is pulled out of the suspension member connection fitting. It will be possible to prevent.

本発明の一実施形態に係る吊り天井構造及び吊り部材接続用金具を示す図である。It is a figure which shows the suspension ceiling structure which concerns on one Embodiment of this invention, and the metal fitting for suspension member connection. 本発明の一実施形態に係る吊り部材接続用金具の一方の接続用金具片の６面図である。It is a six-face view of one of the connection fitting pieces of the suspension member connection fitting according to an embodiment of the present invention. 本発明の一実施形態に係る吊り部材接続用金具の他方の接続用金具片の６面図である。It is 6 surface views of the other connecting fitting piece of the hanging member connecting fitting according to the embodiment of the present invention. 天井裏側から見た吊り天井構造を示す斜視図である。It is a perspective view which shows the suspended ceiling structure seen from the ceiling back side. 従来の吊り天井構造及び吊り部材接続用金具を示す図である。It is a figure which shows the conventional suspended ceiling structure and the metal fitting for suspension member connection.

以下、図１から図４を参照し、本発明の一実施形態に係る吊り天井構造及び吊り部材接続用金具について説明する。 Hereinafter, a suspended ceiling structure and a bracket for connecting a suspension member according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

図４に示すように、本実施形態の吊り天井構造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を設置したり、天井材３として輻射パネルが適用されるライン式の吊り天井の構造である。 As shown in FIG. 4, the suspended ceiling structure B according to the present embodiment is, for example, a line where a heavy-weight equipment such as a fan filter unit is installed or a radiation panel is applied as the ceiling material 3 like a clean room. Structure of a suspended ceiling

そして、この吊り天井（吊り天井構造）Ｂは、図１及び図４に示すように、水平の一方向Ｔ１に所定の間隔をあけ、一方向Ｔ１に直交する他方向Ｔ２に延びて並設された複数の天井材支持部材（Ｔバー）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部材（吊りボルト）２と、一方向Ｔ１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。 And this suspended ceiling (suspended ceiling structure) B is provided in parallel, extending in the other direction T2 orthogonal to the one direction T1, with a predetermined interval in one horizontal direction T1, as shown in FIG. 1 and FIG. A plurality of ceiling material support members (T-bars) 1 and an upper end side are connected to an upper structure (structure of a building) such as a floor material of an upper floor, and a lower end side is connected to the ceiling material support member 1 A ceiling material (ceiling panel) 3 disposed to bridge the plurality of suspended members (hanging bolts) 2 and the ceiling material supporting member 1 adjacent to one direction T1 to form a ceiling surface 3a, and an upper structure The upper end side is connected to, and the lower end side is connected to the ceiling material supporting member 1, and the reinforcement brace 4 installed obliquely is comprised.

本実施形態において、天井材支持部材１は、Ｔバーであり、吊り部材２の下端が接続される接続部５と、接続部５の下端に繋がり、接続部５から下方に延設された連接部６と、連接部６の下端に繋がり、水平の一方向Ｔ１両側に延びる板状の支持部７とを備えて断面逆Ｔ字型に形成されている。さらに、天井材支持部材１は、略平板状の連接部６の上端に幅方向（Ｔ１）両外側に膨出するように接続部５が一体形成されている。 In the present embodiment, the ceiling material support member 1 is a T-bar, and is connected to the connection portion 5 to which the lower end of the suspension member 2 is connected and the lower end of the connection portion 5 and connected downward from the connection portion 5 A section 6 and a plate-like support section 7 connected to the lower end of the connecting section 6 and extending on both sides in one horizontal direction T1 are formed in an inverted T-shaped cross section. Furthermore, in the ceiling material support member 1, the connection portion 5 is integrally formed on the upper end of the substantially flat connection portion 6 so as to expand outward in the width direction (T 1).

吊り部材２は、円柱棒状に形成されるとともに外周面に雄ネジの螺刻を有する吊りボルトであり、上端を上階の床材等の上部構造（建物躯体）に固着、または鋼製の根太等に緊結して垂下され、下端側を吊り部材接続用金具（ハンガー）１５で天井材支持部材１に接続して複数配設されている。また、複数の吊り部材２は、所定の間隔をあけて分散配置されている。 The suspension member 2 is a suspension rod formed in a cylindrical rod shape and having a male screw thread on its outer peripheral surface, and its upper end is fixed to an upper structure (building frame) such as a floor material of an upper floor or steel joist The lower end side is connected to the ceiling material supporting member 1 by a hanging member connecting bracket (hanger) 15, and a plurality of the lower end sides are provided. In addition, the plurality of suspension members 2 are distributed at predetermined intervals.

天井材（天井パネル）３は、２枚のボードを貼り付けて一体に積層形成したものであり、例えば天井付帯設備等の重量と併せて、１ｍ^２あたり２０ｋｇ程度の重量で形成されている。そして、この天井材３は、複数の天井材支持部材１の支持部７に端部側を上載して支持され、隣り合う天井材支持部材１の間に架け渡すようにして設置されている。なお、天井材３は、天井材支持部材１の支持部７に下面側からビス留めするなどして設置されていてもよい。また、天井材３は、１枚および３枚以上のボードで構成されていてもよい。 The ceiling material (ceiling panel) 3 is one in which two boards are attached and integrally laminated, and for example, it is formed with a weight of about 20 kg / m ^{2 in} combination with the weight of equipment attached to the ceiling and the like. The ceiling material 3 is supported by supporting the end portions of the plurality of ceiling material supporting members 1 on the upper end side, and is installed so as to bridge between the adjacent ceiling material supporting members 1. The ceiling material 3 may be installed by screwing or the like to the support portion 7 of the ceiling material support member 1 from the lower surface side. Moreover, the ceiling material 3 may be comprised by one board and three or more boards.

そして、この吊り天井Ｂでは、吊り部材２を介して建物の上部構造に、天井材支持部材１と天井材３とが吊り下げ支持されている。また、天井材支持部材１によって天井下地２０が形成され、この天井下地２０と天井下地２０に取り付けた天井材３によって天井部１６が形成され、この天井部１６によって下階の天井面３ａが形成されている。 And in this suspended ceiling B, the ceiling material support member 1 and the ceiling material 3 are suspended and supported on the upper structure of the building via the suspension member 2. Further, a ceiling base 20 is formed by the ceiling material support member 1, a ceiling portion 16 is formed by the ceiling base 20 and the ceiling material 3 attached to the ceiling base 20, and the ceiling portion 3 is formed by the ceiling portion 16. It is done.

一方、本実施形態の吊り天井Ｂにおいて、天井材支持部材１と吊り部材２を接続するための吊り部材接続用金具１５は、図１に示すように、一対の接続用金具片１７，１８を備えて構成されている。 On the other hand, in the suspended ceiling B of the present embodiment, as shown in FIG. 1, the hanging member connecting bracket 15 for connecting the ceiling material support member 1 and the hanging member 2 is a pair of connecting fitting pieces 17 and 18. It is configured to be equipped.

一方の接続用金具片１７は、図１及び図２に示すように、（断面視で、）天井材支持部材１の接続部５の一側部側に係合する係合凹部１７ａと、係合凹部１７ａの上端から上方に延設された接続板部１７ｂとを備えるとともに、係合凹部１７ａの下端から天井材支持部材１の連接部６に沿って下方に延設される係止片部１７ｃを備えて形成されている。 As shown in FIGS. 1 and 2, one of the connection fitting pieces 17 is engaged with an engagement recess 17a which engages with one side of the connection portion 5 of the ceiling material support member 1 (in cross section). Locking piece provided along the connecting portion 6 of the ceiling material support member 1 from the lower end of the engaging recess 17a while having the connecting plate 17b extending upward from the upper end of the engaging recess 17a It is formed with 17c.

また、一方の接続用金具片１７の接続板部１７ｂは、他方の接続用金具片１８の接続板部１８ｂよりも長さ寸法を大にして形成され、且つ上端側に直角に折れ曲がるとともに吊り部材２を挿通してナット１９で接続するためのボルト挿通孔を有する連結部１７ｄを備えて形成されている。 Further, the connection plate portion 17b of one of the connection fitting pieces 17 is formed to have a larger length than the connection plate portion 18b of the other connection fitting piece 18, and is bent at the upper end side at a right angle while being suspended A connecting portion 17 d having a bolt insertion hole for inserting 2 and connecting with a nut 19 is formed.

また、本実施形態において、一方の接続用金具片１７の接続板部１７ｂには、上端と下端の間の所定位置に一側面から他側面に貫通して係止孔２１が形成され、さらに係止孔２１よりも下端側に、一側面から他側面に貫通するボルト挿通孔（上部ボルト挿通孔）２２が形成されている。また、一方の接続用金具片１７の係止片部１７ｃには、上端と下端の間の所定位置に一側面から他側面に貫通するボルト挿通孔（下部ボルト挿通孔）２３が形成されている。さらに、係合凹部１７ａの下端側には、内面から突出して天井材支持部材１の接続部５の下端部分に係合する突部２４ａが形成されている。 Further, in the present embodiment, the connecting plate portion 17b of one connecting fitting piece 17 is formed with a locking hole 21 penetrating from one side to the other side at a predetermined position between the upper end and the lower end. A bolt insertion hole (upper bolt insertion hole) 22 penetrating from one side surface to the other side surface is formed on the lower end side of the stop hole 21. Further, a bolt insertion hole (lower bolt insertion hole) 23 penetrating from one side surface to the other side surface is formed at a predetermined position between the upper end and the lower end in the locking piece portion 17c of one connection fitting piece 17. . Further, on the lower end side of the engagement recess 17a, a projection 24a is formed which protrudes from the inner surface and engages with the lower end portion of the connection portion 5 of the ceiling material support member 1.

他方の接続用金具片１８は、図１及び図３に示すように、（断面視で、）天井材支持部材１の接続部５の他側部側に係合する係合凹部１８ａと、係合凹部１８ａの上端から上方に突設され、一方の接続用金具片１７の接続板部１７ｂに接続する接続板部１８ｂとを備えるとともに、係合凹部１８ａの下端から天井材支持部材１の連接部６に沿って下方に延設される係止片部１８ｃを備えて形成されている。 As shown in FIGS. 1 and 3, the other connection fitting piece 18 is engaged (in cross section) with the engagement recess 18a engaged with the other side of the connection portion 5 of the ceiling material support member 1, A connection plate portion 18b is provided protruding upward from the upper end of the joint recess 18a and connected to the connection plate portion 17b of one of the connection fitting pieces 17, and connecting the ceiling material support member 1 from the lower end of the engagement recess 18a. The locking piece 18 c is formed to extend downward along the portion 6.

また、本実施形態において、他方の接続用金具片１８の接続板部１８ｂは、上端側に略直角に折れ曲がり、一方の接続用金具片１７の接続板部１７ｂに形成された係止孔２１に挿入して係止される係止部１８ｄを備えて形成されている。 Further, in the present embodiment, the connection plate portion 18 b of the other connection fitting piece 18 is bent substantially at a right angle to the upper end side, and is engaged with the locking hole 21 formed in the connection plate portion 17 b of one connection fitting piece 17. It is formed to have a locking portion 18d which is inserted and locked.

さらに、他方の接続用金具片１８の接続板部１８ｂは、上端と下端の間の所定位置に一側面から他側面に貫通するボルト挿通孔（上部ボルト挿通孔）２５が形成されている。また、他方の接続用金具片１８の係止片部１８ｃには、上端と下端の間の所定位置に一側面から他側面に貫通するボルト挿通孔（下部ボルト挿通孔）２６が形成されている。さらに、係合凹部１８ａの下端側には、内面から突出して天井材支持部材１の接続部５の下端部分に係合する突部２４ｂが形成されている。 Furthermore, a bolt insertion hole (upper bolt insertion hole) 25 is formed at a predetermined position between the upper end and the lower end of the connection plate portion 18b of the other connection fitting piece 18 so as to penetrate from one side to the other side. Further, a bolt insertion hole (lower bolt insertion hole) 26 penetrating from one side surface to the other side surface is formed at a predetermined position between the upper end and the lower end in the locking piece 18c of the other connection fitting piece 18 . Further, on the lower end side of the engagement recess 18a, a protrusion 24b is formed which protrudes from the inner surface and engages with the lower end portion of the connection portion 5 of the ceiling material support member 1.

そして、上記構成からなる吊り部材接続用金具１５及びこれを備えた吊り天井Ｂにおいては、一方の接続用金具片１７の係合凹部１７ａと他方の接続用金具片１８の係合凹部１８ａとをそれぞれ天井材支持部材１の接続部５を内包するように係合させるとともに、他方の接続用金具片１８の接続板部１８ｂの上端に設けられた係止部１８ｄを一方の接続用金具片１７の接続板部１７ｂに設けられた係止孔２１に挿入するようにして、一方の接続用金具片１７と他方の接続用金具片１８を設置する。 Then, in the hanging member connecting bracket 15 having the above configuration and the hanging ceiling B including the same, the engaging recess 17a of one connecting bracket piece 17 and the engaging recess 18a of the other connecting bracket piece 18 The engagement portion 18 d provided on the upper end of the connection plate portion 18 b of the other connection fitting piece 18 is engaged with the connection member 5 of the ceiling material support member 1 so as to enclose the connection portion 5 of the ceiling material support member 1. One of the connection fitting pieces 17 and the other connection fitting piece 18 are installed so as to be inserted into the locking holes 21 provided in the connection plate portion 17b.

また、他方の接続用金具片１８の係止部１８ｄを一方の接続用金具片１７の係止孔２１に挿入するという簡易な操作で、一対の接続用金具片１７，１８の係合凹部１７ａ，１８ａの位置を天井材支持部材１の接続部５と係合する所定位置に位置決めすることができる。さらに、一方の接続用金具片１７の接続板部１７ｂと他方の接続用金具片１８の接続板部１８ｂにそれぞれ形成されたボルト挿通孔（２２と２５、２３と２６）が連通するように位置決めすることができる。 In addition, the engaging concave portions 17a of the pair of connection fitting pieces 17 and 18 can be simply operated by inserting the locking portion 18d of the other connection fitting piece 18 into the locking hole 21 of the one connection fitting piece 17. , 18a can be positioned at predetermined positions engaged with the connection portion 5 of the ceiling material support member 1. Further, positioning is performed so that the bolt insertion holes (22 and 25, 23 and 26) respectively formed in the connection plate portion 17b of one connection fitting piece 17 and the connection plate portion 18b of the other connection fitting piece 18 communicate with each other. can do.

そして、一方の接続用金具片１７の接続板部１７ｂと他方の接続用金具片１８の接続板部１８ｂにそれぞれ形成されたボルト挿通孔（２２と２５）に上部ボルト１１を挿通して締結すると、この上部ボルト１１の締め込みによって一方の接続用金具片１７と他方の接続用金具片１８の一対の係合凹部１７ａ，１８ａによって天井材支持部材１の接続部５が挟持され、これに伴う摩擦力と係合力をもって吊り部材接続用金具１５と天井材支持部材１（接続部５）とが接続される。 Then, the upper bolt 11 is inserted into and fastened to the bolt insertion holes (22 and 25) respectively formed in the connection plate portion 17b of one connection fitting piece 17 and the connection plate portion 18b of the other connection fitting piece 18 When the upper bolt 11 is tightened, the connecting portion 5 of the ceiling material supporting member 1 is held by the pair of engaging concave portions 17a and 18a of the connecting fitting piece 17 and the other connecting fitting piece 18, and this is accompanied by this The hanging member connecting metal fitting 15 and the ceiling material supporting member 1 (connection portion 5) are connected with frictional force and engagement force.

また、一方の接続用金具片１７の上端の連結部１７ｄに形成されたボルト挿通孔に吊り部材２の下端側を挿通し、ナット１９で締結することによって、天井材支持部材１が吊り部材接続用金具１５を介して吊り部材２に接続され、吊り部材２に吊り下げ支持される。 Further, the lower end side of the suspension member 2 is inserted into the bolt insertion hole formed in the connecting portion 17 d at the upper end of one of the connection fitting pieces 17, and the ceiling material support member 1 is connected with the suspension member It is connected to the hanging member 2 via the metal fitting 15, and is suspended and supported by the hanging member 2.

一方、本実施形態の吊り部材接続用金具１５（及びこれを備えた吊り天井Ｂ）においては、一方の接続用金具片１７と他方の接続用金具片１８にそれぞれ、係合凹部１７ａ、１８ａの下端から下方に延設される係止片部１７ｃ、１８ｃを備えて形成されている。そして、これら係止片部１７ｃ、１８ｃは、係合凹部１７ａ、１８ａを天井材支持部材１の接続部５に係合させて接続するとともに天井材支持部材１の連接部６に沿って延設される。すなわち、一方の接続用金具片１７の係止片部１７ｃと他方の接続用金具片１８の係止片部１８ｃとによって天井材支持部材１の連接部６を挟み込むように、吊り部材接続用金具１５が取り付けられる。 On the other hand, in the hanging member connecting bracket 15 (and the hanging ceiling B provided with the same) of the present embodiment, one connecting fitting piece 17 and the other connecting fitting piece 18 are respectively provided with the engaging concave portions 17a and 18a. The locking pieces 17c and 18c are formed to extend downward from the lower end. The engaging pieces 17c and 18c connect the engaging recesses 17a and 18a to the connecting portion 5 of the ceiling material supporting member 1 and extend along the connecting portion 6 of the ceiling material supporting member 1 Be done. In other words, the hanging member connecting bracket such that the connecting portion 6 of the ceiling material support member 1 is sandwiched by the locking piece portion 17c of one connection fitting piece 17 and the locking piece portion 18c of the other connection fitting piece 18 15 is attached.

これにより、本実施形態の吊り部材接続用金具１５（及びこれを備えた吊り天井Ｂ）においては、上下方向（Ｔ３）に地震力、振動などの外力が作用すると、まず、一方の接続用金具片１７と他方の接続用金具片１８の係合凹部１７ａ、１８ａが天井材支持部材１の接続部５に係合しているため、この係合に伴う摩擦力、係合力によって鉛直方向の外力に抵抗する。 Thereby, in the metal fitting 15 for hanging member connection of this embodiment (and the hanging ceiling B provided with the same), when an external force such as seismic force or vibration acts in the vertical direction (T3), first, the metal fitting for one connection Since the engagement recesses 17a and 18a of the piece 17 and the other connection fitting piece 18 are engaged with the connection portion 5 of the ceiling material support member 1, the external force in the vertical direction is caused by the frictional force and the engagement force associated with this engagement. To resist.

さらに、一方の接続用金具片１７と他方の接続用金具片１８の係止片部１７ｃ，１８ｃが天井材支持部材１の連接部６を挟み込むように配設されているため、一方の接続用金具片１７及び他方の接続用金具片１８の係合凹部１７ａ，１８ａと天井材支持部材１の接続部５との間で生じる摩擦力に加え、鉛直方向に地震力、振動などの外力が作用した際に、一対の係止片部１７ｃ，１８ｃが開き、これら一対の係止片部１７ｃ，１８ｃの間に天井材支持部材１の接続部５が入り込むこと（挿通しようとすること）が阻止され、一対の係止片部１７ｃ，１８ｃがそれぞれ天井材支持部材１の連接部６に当接してこの連接部６を挟み込んだ状態で保持される。 Furthermore, since the locking pieces 17c and 18c of one connecting fitting piece 17 and the other connecting fitting piece 18 are disposed so as to sandwich the connecting part 6 of the ceiling material support member 1, one connecting fitting In addition to the frictional force generated between the engaging concave portions 17a and 18a of the metal fitting piece 17 and the other connecting metal fitting piece 18 and the connection portion 5 of the ceiling material support member 1, external force such as seismic force and vibration acts in the vertical direction At the same time, the pair of locking pieces 17c and 18c are opened, and the connection portion 5 of the ceiling material support member 1 is prevented from entering between the pair of locking pieces 17c and 18c. Thus, the pair of locking pieces 17c and 18c abut on the connecting portion 6 of the ceiling material support member 1 to hold the connecting portion 6 in a sandwiched state.

このため、鉛直方向に地震力、振動などの外力が作用した際に、従来のように一方の接続用金具片１７と他方の接続用金具片１８の係合凹部１７ａ、１８ａが開いてしまい、天井材支持部材１の接続部５との係合状態が解除され、吊り部材接続用金具１５から天井材支持部材１が引き抜けることがない。 For this reason, when an external force such as seismic force or vibration acts in the vertical direction, the engagement concave portions 17a and 18a of one connecting fitting piece 17 and the other connecting fitting piece 18 are opened as in the conventional case. The engagement state of the ceiling material support member 1 with the connection portion 5 is released, and the ceiling material support member 1 is not pulled out of the suspension member connection fitting 15.

さらに、一対の接続用金具片１７、１８を設置すると、一方の接続用金具片１７の係止片部１７ｃと他方の接続用金具片１８の係止片部１８ｃにそれぞれ形成されたボルト挿通孔２３、２６も天井材支持部材１の連接部６に貫通形成されたボルト挿通孔２７を通じて連通する。そして、これら連通したボルト挿通孔２３，２６，２７に縫いボルト２８を挿通し、一方の接続用金具片１７の係止片部１７ｃ及び他方の接続用金具片１８の係止片部１８ｃと天井材支持部材１の連接部６とをボルト接合する。これにより、確実に、一対の接続用金具片１７，１８が開いて天井材支持部材１の接続部５との係合状態が解除され、吊り部材接続用金具１５から天井材支持部材１が引き抜けることがなくなる。 Further, when the pair of connection fitting pieces 17 and 18 are installed, the bolt insertion holes respectively formed in the locking piece portion 17c of one connection fitting piece 17 and the locking piece portion 18c of the other connection fitting piece 18 23 and 26 also communicate through a bolt insertion hole 27 formed through the connecting portion 6 of the ceiling material support member 1. Then, the sewing bolt 28 is inserted into the communicating bolt insertion holes 23, 26 and 27, and the locking piece 17c of one connection fitting piece 17 and the locking piece 18c of the other connection fitting piece 18 and the ceiling The joint portion 6 of the material support member 1 is bolted. As a result, the pair of connection fitting pieces 17 and 18 are reliably opened, and the engagement state with the connection portion 5 of the ceiling material support member 1 is released, and the ceiling material support member 1 is pulled out from the suspension member connection fitting 15 There is no longer.

したがって、本実施形態に係る吊り天井Ｂ及び吊り部材接続用金具１５においては、吊り部材接続用金具１５の一方の接続用金具片１７の係合凹部１７ａと他方の接続用金具片１８の係合凹部１８ａとをそれぞれ天井材支持部材１の接続部５を内包するように係合させ、一方の接続用金具片１７の接続板部１７ｂと他方の接続用金具片１８の接続板部１８ｂを上部ボルト１１及び下部ボルト２８の締め込みによってボルト接合することにより、一方の接続用金具片１７と他方の接続用金具片１８の一対の係合凹部１７ａ，１８ａによって天井材支持部材１の接続部５を挟持することができ、これに伴う摩擦力と係合力をもって吊り部材接続用金具１５と天井材支持部材１とを接続することができる。 Therefore, in the suspended ceiling B and the hanging member connecting bracket 15 according to the present embodiment, the engagement between the engaging recess 17a of the one connecting fitting piece 17 of the hanging member connecting fitting 15 and the other connecting fitting piece 18 The recess 18a is engaged with the connection portion 5 of the ceiling material support member 1 so as to be contained, and the connection plate portion 17b of one connection fitting piece 17 and the connection plate portion 18b of the other connection fitting piece 18 are upper portions By connecting by bolting the bolt 11 and the lower bolt 28, the connecting portion 5 of the ceiling material supporting member 1 is formed by the pair of engaging recesses 17 a and 18 a of the connecting fitting piece 17 and the other connecting fitting piece 18. The clamp 15 for hanging member connection and the ceiling material support member 1 can be connected with the frictional force and the engaging force associated with this.

また、このとき、吊り部材接続用金具１５の一方の接続用金具片１７と他方の接続用金具片１８にそれぞれ、係合凹部１７ａ，１８ａの下端から下方に延設される係止片部１７ｃ，１８ｃが設けられているため、係合凹部１７ａ，１８ａを天井材支持部材１の接続部５に係合させて接続するとともに天井材支持部材１の連接部６に沿って一対の係止片部１７ｃ，１８ｃを延設させることができる。すなわち、一方の接続用金具片１７の係止片部１７ｃと他方の接続用金具片１８の係止片部１８ｃとによって天井材支持部材１の連接部６を挟み込むように、吊り部材接続用金具１５を取り付けることができる。 At this time, locking pieces 17c extending downward from the lower ends of the engaging recesses 17a and 18a to one of the connection fitting piece 17 and the other connection fitting piece 18 of the hanging member connection fitting 15, respectively. , 18c, so that the engagement recesses 17a, 18a are engaged with and connected to the connecting portion 5 of the ceiling material support member 1 and a pair of locking pieces are formed along the connecting portion 6 of the ceiling material support member 1 The portions 17c and 18c can be extended. In other words, the hanging member connecting bracket such that the connecting portion 6 of the ceiling material support member 1 is sandwiched by the locking piece portion 17c of one connection fitting piece 17 and the locking piece portion 18c of the other connection fitting piece 18 15 can be attached.

これにより、本実施形態の吊り部材接続用金具１５（及びこれを備えた吊り天井Ｂ）においては、鉛直方向に地震力、振動などの外力が作用すると、まず、一方の接続用金具片１７と他方の接続用金具片１８の係合凹部１７ａ，１８ａが天井材支持部材１の接続部５に係合しているため、この係合に伴う摩擦力と係合力によって鉛直方向の外力に抵抗させることができる。 Thereby, in the metal fitting 15 for hanging member connection of this embodiment (and the hanging ceiling B provided with the same), when an external force such as seismic force or vibration acts in the vertical direction, first, one metal fitting piece 17 for connection and Since the engagement recesses 17a and 18a of the other connection fitting piece 18 are engaged with the connection portion 5 of the ceiling material support member 1, the external force in the vertical direction is resisted by the frictional force and the engagement force accompanying this engagement. be able to.

これに加え、一方の接続用金具片１７と他方の接続用金具片１８の係止片部１７ｃ，１８ｃが天井材支持部材１の連接部６を挟み込むように配設されているため、鉛直方向に地震力、振動などの外力が作用した際に、一対の係止片部１７ｃ，１８ｃが開き、これら一対の係止片部１７ｃ，１８ｃの間に天井材支持部材１の接続部５が入り込むこと（挿通しようとすること）を阻止することができ、一対の係止片部１７ｃ，１８ｃが天井材支持部材１の連接部６を挟み込んだ状態を保持することが可能になる。 In addition to this, since the locking pieces 17c and 18c of one connection fitting piece 17 and the other connection fitting piece 18 are disposed so as to sandwich the connecting portion 6 of the ceiling material support member 1, the vertical direction When an external force such as seismic force or vibration acts on the pair, the pair of locking pieces 17c and 18c open, and the connecting portion 5 of the ceiling material support member 1 enters between the pair of locking pieces 17c and 18c. Therefore, it is possible to prevent the insertion (insertion), and it is possible to hold the state in which the pair of locking pieces 17c and 18c sandwich the connecting portion 6 of the ceiling material support member 1.

よって、本実施形態の吊り天井Ｂ及び吊り部材接続用金具１５によれば、鉛直方向に地震力、振動などの外力が作用した際に、従来のように一方の接続用金具片１７と他方の接続用金具片１８の係合凹部１７ａ、１８ａが開いてしまい、吊り部材接続用金具１５から天井材支持部材１が引き抜けることを防止することが可能になる。すなわち、鉛直地震力や補強ブレース４周りの鉛直方向の地震力に対し、天井材３や天井下地２０の脱落などが生じない信頼性の高い吊り天井構造Ｂを実現することが可能になる。 Therefore, according to the suspended ceiling B and the suspended member connecting bracket 15 of the present embodiment, when external force such as seismic force or vibration acts in the vertical direction, one connecting bracket piece 17 and the other are connected as in the conventional case. The engagement recesses 17a and 18a of the connection fitting piece 18 are opened, and it is possible to prevent the ceiling material support member 1 from being pulled out of the suspension member connection fitting 15. That is, it becomes possible to realize a highly reliable suspended ceiling structure B in which the ceiling material 3 and the ceiling base 20 do not fall off with respect to the vertical seismic force and the vertical seismic force around the reinforcing brace 4.

また、一対の接続用金具片１７、１８を設置すると、一方の接続用金具片１７の係止片部１７ｃと他方の接続用金具片１８の係止片部１８ｃにそれぞれ形成されたボルト挿通孔（２３と２６）も天井材支持部材１の連接部６に貫通形成されたボルト挿通孔２７を通じて連通し、これら連通したボルト挿通孔２３，２６，２７に縫いボルト２８を挿通し、一方の接続用金具片１７の係止片部１７ｃ及び他方の接続用金具片１８の係止片部１８ｃと天井材支持部材１の連接部６とをボルト接合することができる。これにより、より確実に、一対の接続用金具片１７，１８の係止片部１７ｃ，１８ｃが開いて天井材支持部材１の接続部５との係合状態が解除されることを防止でき、吊り部材接続用金具１５から天井材支持部材１が引き抜けることを防止することが可能になる。 Further, when the pair of connection fitting pieces 17 and 18 are installed, the bolt insertion holes respectively formed in the locking piece portion 17c of one connection fitting piece 17 and the locking piece portion 18c of the other connection fitting piece 18 (23 and 26) are also communicated through the bolt insertion holes 27 formed through the connecting portion 6 of the ceiling material support member 1, and the sewing bolts 28 are inserted through the communicated bolt insertion holes 23, 26, 27 and one connection is made The locking piece portion 17c of the fitting piece 17 and the locking piece portion 18c of the other connection fitting piece 18 can be bolted to the connecting portion 6 of the ceiling material support member 1. As a result, the engagement pieces 17c and 18c of the pair of connection fitting pieces 17 and 18 can be more reliably prevented from being opened and released from the engagement with the connection part 5 of the ceiling material support member 1. It becomes possible to prevent the ceiling material support member 1 from being pulled out of the hanging member connecting bracket 15.

そして、上記のように天井材支持部材１が吊り部材接続用金具１５から引き抜けることを防止できることにより、例えば、０．４ｍｍ厚の天井材支持部材１を用いた場合において、天井材重量を２０ｋｇ／ｍ^２としたり、地震時加速度が１．５Ｇを超えるケースであっても、耐震性を確保することが可能になる。 And since it can prevent that the ceiling material support member 1 pulls out from the metal fitting 15 for suspension member connection as mentioned above, when using the ceiling material support member 1 of 0.4 mm thickness, for example, a ceiling material weight is 20 kg / Even if m ² is used or the earthquake acceleration exceeds 1.5 G, earthquake resistance can be secured.

また、吊り部材接続用金具１５から天井材支持部材１が引き抜けることを防止できることで、レの字状やＶ字状等、補強ブレース４の配置バリエーションの自由度を高めることも可能になる。言い換えれば、吊り天井構造Ｂの設計自由度を高めることが可能になる。 In addition, since the ceiling material supporting member 1 can be prevented from being pulled out of the hanging member connecting bracket 15, it is also possible to increase the degree of freedom of the arrangement variation of the reinforcing brace 4 such as a V-shape. In other words, it is possible to increase the design freedom of the suspended ceiling structure B.

以上、本発明に係る吊り天井構造及び吊り部材接続用金具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 suspended ceiling structure and bracket for connecting a suspending member according to the present invention has been described, the present invention is not limited to the one embodiment described above, and can be appropriately modified without departing from the scope of the present invention. It is.

例えば、一方の接続用金具片１７や他方の接続用金具片１８の係止凹部１７ａ，１８ａをビスやボルト２９を用いて（すなわち、ボルト２９を補強ボルト挿通孔３３，３６，３７に挿通し、天井材支持部材１の接続部５に接合するようにしてもよい。この場合には、さらに確実に吊り部材接続用金具１５から天井材支持部材１が引き抜けることを防止することが可能になる。 For example, the locking recesses 17a and 18a of one of the connection fitting pieces 17 and the other connection fitting piece 18 are screwed or bolted 29 (that is, the bolt 29 is inserted into the reinforcing bolt insertion holes 33, 36, 37) And may be joined to the connection portion 5 of the ceiling material support member 1. In this case, it becomes possible to more reliably prevent the ceiling material support member 1 from being pulled out of the hanging member connection bracket 15. .

また、本実施形態では、吊り天井構造Ｂがライン式の吊り天井であるものとした。すなわち、本実施形態では、水平の一方向Ｔ１に所定の間隔をあけ、一方向Ｔ１に直交する他方向Ｔ２に延びて並設された複数の天井材支持部材（Ｔバー）１を備えて天井下地２０（天井部１６）が形成されているものとし、本発明に係る吊り部材接続用金具が天井材支持部材のＴバー１と吊り部材２を接続するものとして説明を行った。 In the present embodiment, the suspended ceiling structure B is a line type suspended ceiling. That is, in the present embodiment, a ceiling is provided with a plurality of ceiling material support members (T-bars) 1 arranged in parallel, with a predetermined interval in one horizontal direction T1, and extending in another direction T2 orthogonal to the one direction T1. The base 20 (ceiling part 16) is formed, and the metal fitting for suspension member connection according to the present invention is described as connecting the T-bar 1 of the ceiling material support member with the suspension member 2.

これに対し、本発明に係る吊り天井構造は、水平の一方向及び一方向に直交する水平の他方向に所定の間隔をあけ、他方向及び／又は一方向に延設される天井材支持部材を備えて構成されていてもよい。すなわち、本発明に係る吊り天井構造は、水平の一方向と他方向にそれぞれ所定の間隔をあけて天井材支持部材を組み付けて格子状の天井下地（天井部）を備えたシステム天井などの吊り天井構造であってもよい。 On the other hand, in the suspended ceiling structure according to the present invention, a ceiling material support member is provided which has a predetermined distance in one horizontal direction and another horizontal direction orthogonal to one direction, and extends in the other direction and / or one direction. And may be configured. That is, the suspended ceiling structure according to the present invention suspends a system ceiling or the like provided with a grid-like ceiling base (ceiling portion) by assembling ceiling material supporting members at predetermined intervals in one horizontal direction and another direction. It may be a ceiling structure.

１天井材支持部材（Ｔバー）
２吊り部材
３天井材
３ａ天井面
４補強ブレース
５接続部
６連接部
７支持部
８従来の吊り部材接続用金具（ハンガー）
９従来の一方の接続用金具片
９ａ係合凹部
９ｂ接続板部
１０従来の他方の接続用金具片
１０ａ係合凹部
１０ｂ接続板部
１１上部ボルト
１５吊り部材接続用金具（ハンガー）
１６天井部
１７一方の接続用金具片
１７ａ係合凹部
１７ｂ接続板部
１７ｃ係止片部
１７ｄ連結部
１８一方の接続用金具片
１８ａ係合凹部
１８ｂ接続板部
１８ｃ係止片部
１８ｄ係止部
１９ナット
２０天井下地
２１係止孔
２２ボルト挿通孔（上部ボルト挿通孔）
２３ボルト挿通孔（下部ボルト挿通孔）
２４ａ突部
２４ｂ突部
２５ボルト挿通孔（上部ボルト挿通孔）
２６ボルト挿通孔（下部ボルト挿通孔）
２７ボルト挿通孔（下部ボルト挿通孔）
２８縫いボルト
２９ボルト（ビス）
３３ボルト挿通孔（補強ボルト挿通孔）
３６ボルト挿通孔（補強ボルト挿通孔）
３７ボルト挿通孔（補強ボルト挿通孔）
Ａ従来の吊り天井構造
Ｂ吊り天井構造
Ｔ１一方向（横方向）
Ｔ２他方向（横方向）
Ｔ３上下方向 1 Ceiling material support member (T-bar)
DESCRIPTION OF SYMBOLS 2 suspension member 3 ceiling material 3a ceiling surface 4 reinforcement brace 5 connection part 6 connection part 7 support part 8 conventional metal fitting for hanging member (hanger)
9 One conventional connection fitting piece 9a engagement recess 9b connection plate portion 10 The other conventional connection fitting piece 10a engagement recess portion 10b connection plate portion 11 upper bolt 15 suspension member connection fitting (hanger)
DESCRIPTION OF SYMBOLS 16 Ceiling part 17 One metal fitting piece 17a Connection concave part 17b Connection plate part 17c Locking piece part 17d Connection part 18 One metal fitting piece 18a Connection concave part 18b Connection plate part 18c Locking piece part 18d Locking part 19 nut 20 ceiling base 21 locking hole 22 bolt insertion hole (upper bolt insertion hole)
23 Bolt insertion hole (lower bolt insertion hole)
24a projection 24b projection 25 bolt insertion hole (upper bolt insertion hole)
26 bolt insertion hole (lower bolt insertion hole)
27 Bolt insertion hole (lower bolt insertion hole)
28 sewing bolt 29 bolt (screw)
33 Bolt insertion hole (reinforcement bolt insertion hole)
36 bolt insertion hole (reinforcement bolt insertion hole)
37 Bolt insertion hole (reinforcement bolt insertion hole)
A Conventional suspended ceiling structure B Suspended ceiling structure T1 One direction (lateral direction)
T2 other direction (horizontal direction)
T3 up and down direction

Claims

The suspension is supported via a suspension member extending along the vertical direction from the upper structure of the building, and a predetermined distance is provided in one horizontal direction and / or another horizontal direction orthogonal to the one direction, and the other direction and / or Or a suspended ceiling structure including a ceiling material support member extended in one direction and a plate-like ceiling material supported by the ceiling material support member to form a ceiling surface,
The ceiling material support member is connected to a connection portion where the lower end of the suspension member is connected via a metal fitting for connection to a suspension member, and a connection portion connected to the lower end of the connection portion and extending downward from the connection portion; It has a plate-like support portion connected to the lower end of the connecting portion and extending in both directions in one direction, and is formed in an inverted T-shape in cross section,
The hanging member connecting fitting includes a pair of connecting fitting pieces,
One of the connection fitting pieces is engaged with an engagement recess engaged with one side of the connection portion of the ceiling material support member, and is extended upward from the upper end of the engagement recess, and a through-formed upper bolt is inserted A locking plate portion having a lower bolt insertion hole formed extending downward from the lower end of the engagement recess along the connecting portion of the ceiling material support member and having a connection plate portion having a hole; Formed and equipped
The other connection fitting piece is engaged with an engagement recess which engages with the other side of the connection portion of the ceiling material support member, and an upper bolt which is formed to project upward from the upper end of the engagement recess. And a connection plate portion connected to the connection plate portion of the one connection fitting piece, and extending downward from the lower end of the engagement recess along the connecting portion of the ceiling material support member And formed with a locking piece having a lower bolt insertion hole formed through it,
A lower bolt insertion hole communicating with the lower bolt insertion hole formed in the locking piece of the one connection fitting piece and the other connection fitting piece is formed in the connecting part of the ceiling material support member. ,
The engaging concave portions of the one connection fitting piece and the other connection fitting piece are engaged with the connection portion of the ceiling material support member while the one connection fitting piece and the other connection fitting piece A bolt is inserted into and joined to the upper bolt insertion hole formed in the connection plate portion, and the ceiling material support member is connected to the suspension member,
A bolt is inserted through the lower bolt insertion hole formed in the locking piece of the one connection fitting piece, the other connection fitting piece, and the connecting part of the ceiling material support member, and the suspension member connection fitting wherein being configured to connect one of the locking piece portion of the connecting metal fitting piece and the other connecting bracket piece, and a connecting portion of the ceiling material support member,
Reinforcing bolt insertion holes communicating with each other are formed in the engagement recesses of the one connection fitting piece and the other connection fitting piece of the suspension member connection fitting and the connection portion of the ceiling material support member. And a bolt is inserted through the reinforcing bolt insertion hole, and the engagement recess of the one connection fitting piece and the other connection fitting piece of the suspension member connection fitting and the connection portion of the ceiling material support member Configured to connect
In the vertical direction, the one connection fitting piece or the other connection fitting piece of the suspension member connection fitting and the ceiling material support member are directly fixed by two bolts inserted into a plurality of bolt insertion holes. ,
A portion extending linearly in the vertical direction is provided on the upper side of the engagement recess in the one connection fitting piece, and the connection plate portion and the locking piece portion are linear in the vertical direction. Rolled to
The connection portion of the ceiling material support member is dense, and bulges outward in the width direction from the upper end of the connection portion of the ceiling material support member;
A suspended ceiling structure characterized in that the connecting portion of the ceiling material supporting member extends linearly in the vertical direction .

In the suspended ceiling structure according to claim 1 ,
The lower end side of the engagement concave portion of the one connection fitting piece of the suspension member connection fitting and the other connection fitting piece protrudes from the inner surface and engages with the lower end portion of the connection portion of the ceiling material support member A suspended ceiling structure characterized in that a projecting portion is formed.

In the suspended ceiling structure according to claim 1 or 2 ,
A locking hole and a locking portion to be locked by being inserted into the locking hole are provided in the connection plate portion of the one connection fitting piece and the other connection fitting piece of the suspension member connection fitting. And the engaging recess of the one connection fitting piece and the other connection fitting piece is engaged with the connection portion of the ceiling material support member while inserting and locking the locking portion in the locking hole Suspended ceiling structure characterized by

In the suspended ceiling structure according to any one of claims 1 to 3 ,
The suspended ceiling structure characterized in that the hanging member connecting bracket is supported by a reinforcing brace extending in a direction perpendicular to the extending direction of the ceiling material supporting member in plan view.