Ceiling structure

Abstract

To provide a ceiling structure that can prevent ceiling materials arranged to be inclined relative to the horizontal direction from falling off.SOLUTION: A ceiling structure 1 installed on a ceiling suspension support A (an installation object) that constitutes a building H comprises: a pair of ceiling surface materials 60 forming a ceiling surface, that slopes downward relative to the horizontal plane as they approach each other; ceiling joists 50 provided on each of the pair of ceiling surface materials 60; support members arranged along the sloping direction of the ceiling surface and supporting the ceiling joists 50; a ceiling joist support brace 70 and a ceiling joist joint brace 80 stretched between the ceiling suspension support A and the support members and fixed to the ceiling surface material 60 and the support member; and a connecting plate 100 connecting the approaching ends of the pair of ceiling surface materials 60.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the technology of ceiling structures.

Background Art

[0002] Conventionally, the technology of ceiling structures provided with members for supporting ceiling materials has been known. For example, it is as described in Patent Document 1.

[0003] Patent Document 1 describes a ceiling structure in which a lower portion of a diagonal brace is fixed to a reinforcing metal fitting provided at an intersection of a field edge that supports a horizontally arranged ceiling surface material and a field edge receiver arranged so as to be orthogonal to the field edge in a plan view, and fixed to the field edge and the field edge receiver.

[0004] In the ceiling structure described in Patent Document 1, since the field edge receiver, the field edge, and the brace are firmly fixed, seismic force or horizontal force during an earthquake can be directly transmitted from the field edge receiver and the field edge to the brace.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Here, there is a ceiling structure that includes a pair of ceiling members that form a ceiling surface (a substantially V-shaped ceiling surface) that slopes downward with respect to the horizontal plane as they approach each other. Since the technique described in Patent Document 1 is not assumed to support the sloping ceiling members, it is difficult to apply it to the ceiling structure having the sloping ceiling members. If the technique described in Patent Document 1 is applied to a ceiling structure having sloping ceiling members, for example, the stress acting on the ceiling members during an earthquake cannot be suitably transmitted to the braces, and the edge supports and the edge portions may be deformed or damaged (hereinafter simply referred to as "deformation"). When the edge supports and the edges are deformed in this way, the ceiling members may fall off.

[0007] The present invention has been made in view of the above circumstances, and the problem to be solved is to provide a ceiling structure capable of suppressing the falling off of ceiling members arranged to be inclined with respect to the horizontal direction.

Means for Solving the Problem

[0008] The problem to be solved by the present invention is as described above. Next, the means for solving this problem will be described.

[0009] That is, in claim 1, it is a ceiling structure installed on an installation target that constitutes a building, including a pair of ceiling members that form a ceiling surface that slopes downward with respect to the horizontal plane as they approach each other, edge supports provided on each of the pair of ceiling members, a support member arranged along the inclination direction of the ceiling surface and supporting the edge supports, a brace installed between the installation target and the support member and fixed to the ceiling members and the support member to each other, and a ceiling member connecting member that connects the tip ends in the approaching direction of the pair of ceiling members.

[0010] In claim 2, the ceiling member connecting member is integrally fixed to the ceiling member with the edge support.

[0011] In claim 3, the ceiling material connecting member includes a central portion extending horizontally so as to straddle between the pair of ceiling materials, and fixing portions formed to extend along the inclined direction of the ceiling surface from both end portions in the extending direction of the central portion and fixed to the ceiling materials. The eaves are arranged so as to be located at the boundary portion between the central portion and the fixing portions.

[0012] In claim 4, it includes reinforcing members respectively fixed to the ceiling material, the support member, and the brace. The support member includes an eaves receiver to which the eaves are fixed. The brace includes an eaves receiver brace installed between the installation target of the ceiling material and the eaves receiver. The reinforcing member includes an eaves receiver reinforcing member to which the ceiling material, the eaves receiver, and the eaves receiver brace are fixed. The portion where the eaves receiver brace and the eaves receiver reinforcing member are fixed is arranged at a position corresponding to the center of gravity of the ceiling material.

[0013] In claim 5, it includes a brace connecting member formed to extend horizontally and connecting the eaves receiver reinforcing members fixed to the pair of ceiling materials.

[0014] In claim 6, it includes an eaves receiver connecting member formed to extend horizontally and connecting the eaves receivers provided on the pair of ceiling materials.

[0015] In claim 7, the support member includes an eaves receiver joint member fixed so as to intersect the eaves receiver in plan view. The brace includes an eaves receiver joint member brace installed between the installation target of the ceiling material and the eaves receiver joint member. The reinforcing member includes an eaves receiver joint reinforcing member to which the ceiling material, the eaves receiver joint member, and the eaves receiver joint member brace are fixed.

[0016] In claim 8, the support member is formed to extend along the inclined direction of the ceiling surface, and includes an edge receiver to which the edge is fixed, and an edge receiver joint member formed to extend along the horizontal direction and arranged to intersect the edge receiver in a plan view. The support member is provided with a joint member for joining the edge receiver and the edge receiver joint member. The joint member is formed in a shape parallel to the inclined direction of the ceiling surface, and includes a contact portion that contacts the upper surface of the edge receiver, an edge receiver fixing portion fixed to the edge receiver, and an edge receiver joint fixing portion that is located above the edge receiver fixing piece portion and is formed in a shape parallel to the horizontal plane and to which the edge receiver joint member is fixed.

Effect of the Invention

[0017] The present invention has an effect of suppressing the falling off of a ceiling material arranged to be inclined with respect to the horizontal direction.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0019] In the following description, the vertical direction, the horizontal direction, and the front-rear direction are defined according to the arrows shown in the drawings.

[0020] Hereinafter, the ceiling structure 1 according to the first embodiment will be described.

[0021] The ceiling structure 1 is a ceiling structure in a building H. The ceiling structure 1 has a ceiling surface arranged obliquely with respect to the horizontal direction. Specifically, the ceiling structure 1 has a ceiling surface that is inclined in a substantially V shape in a front view. In this embodiment, an example in which the ceiling surface is inclined by about 30° with respect to the horizontal direction is shown.

[0022] In FIGS. 1 and 2, for the sake of convenience, a part of the entire ceiling structure in the building H (a part constituting one substantially V shape) is shown. A plurality of the ceiling structures 1 can be arranged such that the substantially V-shaped ceiling surfaces are continuous in the left-right direction. Further, the ceiling structure 1 can be formed so as to extend in the front-rear direction (the parts shown in FIGS. 1 and 2 are continuous).

[0023] Hereinafter, a part of the ceiling structure 1 shown in FIGS. 1 and 2, that is, a part of the entire ceiling structure will be described. Also hereinafter, in the ceiling structure 1, the part constituting the left side of the substantially V-shaped ceiling surface will be referred to as the "left ceiling part XL", and the part constituting the right side will be referred to as the "right ceiling part XR" for explanation. The left ceiling part XL and the left ceiling part XL are formed substantially symmetrically about the left and right. Hereinafter, when the left ceiling part XL and the left ceiling part XL are not particularly distinguished, they may be simply referred to as the "ceiling part". Also hereinafter, in the ceiling structure 1 shown in FIGS. 1 and 2, the vertex side in the substantially V shape in the left-right direction is referred to as the "center side in the left-right direction of the ceiling structure 1", and the anti-vertex side in the left-right direction is referred to as the "outer side in the left-right direction of the ceiling structure 1".

[0024] The ceiling structure 1 includes a suspension bolt 10, a hanger 20, a purlin support 30, a purlin joint member 40, a purlin 50, a ceiling facing material 60, a purlin support brace 70, a purlin joint brace 80, a connecting member 90, a connecting plate 100, a first reinforcing fitting 200, and a second reinforcing fitting 300.

[0025] The suspension bolt 10 shown in FIGS. 1 and 2 is suspended from a ceiling suspension support A which is a member on the building H's frame side. As the ceiling suspension support A, a long member (for example, a C-shaped steel) extending in the front-rear direction can be adopted. A plurality of ceiling suspension supports A are arranged at intervals in the left-right direction. In the present embodiment, two (a total of four) ceiling suspension supports A are provided for the left ceiling part XL and the right ceiling part XR, respectively.

[0026] A plurality (three in the illustrated example) of suspension bolts 10 are provided at intervals in the front-rear direction for one ceiling suspension support A. The length of the suspension bolt 10 is appropriately set according to the inclination of the ceiling surface. Note that the attachment target of the suspension bolt 10 is not limited to the ceiling suspension support A. For example, the suspension bolt 10 may be attached to an insert provided on the building H's frame.

[0027] The hanger 20 supports the edge receiver 30 described later. The hanger 20 is attached to the lower end of each suspension bolt 10. The hanger 20 is formed in a shape capable of hooking the edge receiver 30 described later (see Fig. 10).

[0028] The edge receiver 30 supports the edge 50 described later. The edge receiver 30 is formed in a long shape and is arranged with its longitudinal direction facing the inclination direction of the ceiling surface. The edge receiver 30 is formed in a substantially C-shaped cross-section in the longitudinal direction. The edge receiver 30 is supported by the hanger 20 by being hooked on the hanger 20 (see Fig. 10). Thus, the edge receiver 30 is suspended from the ceiling suspension receiver A via the hanger 20 and the suspension bolt 10. A plurality of edge receivers 30 are provided at intervals in the front-rear direction.

[0029] A plurality (three) of edge receivers 30 are provided for each ceiling part (the left ceiling part XL and the right ceiling part XR). In the present embodiment, the edge receivers 30 arranged substantially over the entire inclination direction of the ceiling surface are arranged at the front end side, the rear end side, and the center side in the front-rear direction of each ceiling part, respectively. Hereinafter, among the above-mentioned edge receivers 30, those arranged on the front side are referred to as "front side edge receivers 30F", those arranged on the rear side are referred to as "rear side edge receivers 30B", and those arranged on the center side in the front-rear direction are referred to as "center side edge receivers 30C".

[0030] Also, in the present embodiment, members arranged on both sides in the front-rear direction of the center side edge receiver 30C of each ceiling part, with their longitudinal directions facing the inclination direction of the ceiling surface in the same manner as the edge receiver 30, and having a shorter length than the edge receiver 30, are arranged as short edge receivers 31. The short edge receivers 31 are not suspended by the hanger 20 and the suspension bolt 10.

[0031] The edge receiving joint member 40 is a long member. The edge receiving joint member 40 is disposed above a plurality of edge receivers 30 (front edge receiver 30F, rear edge receiver 30B, and central edge receiver 30C) with its longitudinal direction oriented in a direction orthogonal to the longitudinal direction of the edge receiver 30. The edge receiving joint member 40 is formed in a substantially C shape in a longitudinal cross-sectional view. The edge receiving joint member 40 is arranged such that its upper and lower surfaces are generally horizontal. The edge receiving joint member 40 is provided so as to span the plurality of edge receivers 30 and is joined to these edge receivers 30. The edge receiving joint member 40 is provided so as to be located at both left and right ends in the lateral direction (the left end of the left ceiling portion XL and the right end of the right ceiling portion XR) of the ceiling structure 1 shown in FIGS. 1 and 2, respectively.

[0032] As shown in FIG. 10, the edge receiving joint member 40 is joined to the edge receiver 30 using a joining fitting 41. The joining fitting 41 is formed in a substantially L shape in a side view. Note that FIG. 10 shows the joining fitting 41 of the right ceiling portion XR. The joining fitting 41 includes a first fixing portion 41a and a second fixing portion 41b.

[0033] The first fixing portion 41a is a portion fixed to the edge receiver 30. The first fixing portion 41a is arranged with its plate surface oriented substantially in the front-rear direction. The first fixing portion 41a is fixed to the front surface of the edge receiver 30.

[0034] The second fixing portion 41b is a portion fixed to the edge receiving joint member 40. The second fixing portion 41b extends forward from the upper end portion of the first fixing portion 41a. The second fixing portion 41b is arranged with its plate surface oriented substantially in the up-down direction. The second fixing portion 41b is fixed to the lower surface of the edge receiving joint member 40.

[0035] When attaching the joining fitting 41 to the eaves receiver 30, the first fixing portion 41a is fixed to the front surface of the eaves receiver 30 using screws or the like so that the upper surface of the second fixing portion 41b is substantially horizontal. In this state, the eaves receiver joint member 40 is placed on the upper surface of the second fixing portion 41b, and the second fixing portion 41b is fixed to the lower surface of the eaves receiver joint member 40 using screws or the like, whereby the eaves receiver 30, the eaves receiver joint member 40, and the joining fitting 41 can be integrally fixed. By using the joining fitting 41 as described above, the eaves receiver 30 and the eaves receiver joint member 40, which have different orientations with respect to the horizontal direction, can be suitably joined.

[0036] The eaves 50 supports the ceiling surface material 60 described later. The eaves 50 is formed in a long shape and is arranged with its longitudinal direction oriented in the front-rear direction. The eaves 50 is formed in a substantially C-shaped cross-section in the longitudinal direction. The upper and lower surfaces of the eaves 50 are arranged to be substantially parallel to the ceiling surface. As shown in FIGS. 6 and 9, the eaves 50 is supported by the eaves receiver 30 or the short eaves receiver 31 using clip members 51. A plurality of eaves 50 are provided at intervals in the longitudinal direction of the eaves receiver 30 (the inclination direction of the ceiling surface). In the illustrated example, six eaves 50 are arranged for each ceiling portion (the left ceiling portion XL and the right ceiling portion XR).

[0037] The ceiling surface material 60 shown in FIGS. 1 to 3 constitutes the ceiling surface. The ceiling surface material 60 is formed of, for example, a wooden board. The ceiling surface material 60 is fixed to the lower surface of the eaves 50 using screws or the like. The ceiling surface material 60 is arranged to form a ceiling surface having a substantially V-shaped front view. More specifically, the ceiling surface materials 60 (a pair of ceiling surface materials 60) that constitute the left ceiling portion XL and the right ceiling portion XR are arranged to incline downward with respect to the horizontal plane as they approach each other. As shown in FIG. 3(a), the pair of ceiling surface materials 60 are arranged such that their tip portions are close to each other.

[0038] In this embodiment, the ceiling surfaces of each ceiling portion (left ceiling portion XL and right ceiling portion XR) are formed by two ceiling surface members 60 divided in the inclined direction. Three edge members 50 are fixed to each of the ceiling surface members 60. By connecting each edge member 50 of the ceiling surface member 60 with an edge member receiver 30 or a short edge member receiver 31, the two ceiling surface members 60 are connected.

[0039] The edge member brace 70 shown in FIGS. 1, 2, and 6 is installed between the ceiling suspension receiver A of the building H and the edge member receiver 30 (central edge member receiver 30C). The edge member brace 70 is formed in a long shape and is arranged in a posture in which the longitudinal direction is inclined with respect to the vertical direction. Two (a pair) edge member braces 70 are provided so as to correspond to each of the left ceiling portion XL and the right ceiling portion XR.

[0040] As shown in FIGS. 1 and 2, the upper end portions of each edge member brace 70 are fixed to the ceiling suspension receivers A located on both ends in the left-right direction among the plurality of ceiling suspension receivers A. The lower end portion of each edge member brace 70 is fixed to a substantially central portion in the longitudinal direction of the central edge member receiver 30C of each ceiling portion (left ceiling portion XL and right ceiling portion XR) via a first reinforcing metal fitting 200 described later. The edge member brace 70 is formed in a substantially C shape in a longitudinal cross-sectional view. As shown in FIG. 2, the pair of edge member braces 70 are formed in a left-right symmetric shape in a front view. Each edge member brace 70 is arranged so as to approach each other as it goes toward the lower end portion side.

[0041] The edge member joint brace 80 shown in FIGS. 1, 2, and 9 is installed between the ceiling suspension receiver A of the building H and the edge member joint member 40. The shape of the edge member joint brace 80 is the same as that of the edge member brace 70. Two edge member joint braces 80 are provided on the front and rear sides of each ceiling portion (left ceiling portion XL and right ceiling portion XR) (a total of four).

[0042] Hereinafter, with reference to FIGS. 1 and 9, the edge receiving relay brace 80 of the left ceiling portion XL will be described with attention. The upper ends of the front and rear edge receiving relay braces 80 are fixed to the ceiling suspension receivers A located on both ends in the left-right direction among the plurality of ceiling suspension receivers A (the ceiling suspension receivers A to which the edge receiving braces 70 are fixed). Specifically, the upper end of the front edge receiving relay brace 80 is fixed to the front side of the edge receiving brace 70 among the ceiling suspension receivers A, and the upper end of the rear edge receiving relay brace 80 is fixed to the rear side of the edge receiving brace 70 among the ceiling suspension receivers A. Further, the lower end of each edge receiving relay brace 80 is fixed to a substantially central portion in the longitudinal direction of the edge receiving relay member 40 via a second reinforcing metal fitting 300 described later. Each edge receiving relay brace 80 is formed in a symmetric shape in the front-rear direction. Also, each edge receiving relay brace 80 is arranged so as to approach each other as going toward the lower end side.

[0043] The connecting member 90 shown in FIGS. 1 to 3 connects the respective members (edge receivers 30 and edge receiving relay braces 80) of the left ceiling portion XL and the right ceiling portion XR. The connecting member 90 includes an edge receiver connecting member 91 and a brace connecting member 92.

[0044] The edge receiver connecting member 91 connects the edge receiver 30 of the left ceiling portion XL and the edge receiver 30 of the right ceiling portion XR. The edge receiver connecting member 91 is formed in a long shape and is arranged with its longitudinal direction oriented in the left-right direction. The edge receiver connecting member 91 is formed in a substantially C shape in a longitudinal cross-sectional view. Both left and right ends of the edge receiver connecting member 91 are respectively fixed to the central portion in the left-right direction of the edge receiver 30 of each ceiling portion. Thereby, the left and right edge receivers 30 are connected to each other. The edge receiver connecting member 91 is provided for each plurality of edge receivers 30 (three in the illustrated example).

[0045] The brace connecting member 92 connects the left and right field edge receiving and connecting braces 80. The brace connecting member 92 is formed in a long shape and is arranged with its longitudinal direction facing the left - right direction. The brace connecting member 92 is formed in a substantially C - shaped cross - section in the longitudinal direction. Both left - and right - hand end portions in the left - right direction of the brace connecting member 92 are respectively fixed to the first reinforcing metal fittings 200 described later of each ceiling portion. Thereby, the left and right field edge receiving and connecting braces 80 are connected to each other.

[0046] As described above, in the ceiling structure 1 according to the present embodiment, two types of braces are provided: the field edge receiving brace 70 fixed to the field edge receiving 30 side and the field edge receiving and connecting brace 80 fixed to the field edge receiving and connecting member 40 side.

[0047] The connecting plate 100 shown from FIG. 1 to FIG. 3 connects the tip portions in the approaching direction of the left and right ceiling face members 60 that form the apex of the substantially V - shaped ceiling surface. Here, the "tip portion in the approaching direction of the ceiling face member 60" in the present embodiment refers to the portion on the center side in the left - right direction of the left and right ceiling face members 60 rather than both left - and right - hand end portions in the left - right direction of the field edge receiving connecting member 91. The connecting plate 100 is formed of a flat - plate - shaped metal member. The connecting plate 100 is respectively arranged at the front end portion and the rear end portion of the left and right ceiling face members 60. FIG. 3(a) shows the front connecting plate 100 in the front view, and FIG. 3(b) shows the rear connecting plate 100 among the front and rear connecting plates 100. The connecting plate 100 includes a central portion 110 and a fixing portion 120. Also, in FIG. 3(a), the illustration of the clip member 51 is omitted.

[0048] The central portion 110 is the portion at the center in the left - right direction of the connecting plate 100. The central portion 110 is arranged with its plate surface facing the up - down direction. The central portion 110 is arranged so as to straddle between the left and right ceiling face members 60.

[0049] The fixing part 120 is the part fixed to the left and right ceiling surface members 60. The fixing part 120 extends outward in the left - right direction along the upper surface of the ceiling surface member 60 from both ends in the left - right direction of the central part 110. The left and right fixing parts 120 are arranged substantially parallel to each ceiling surface member 60. The left and right fixing parts 120 are arranged to abut against the upper surface of each ceiling surface member 60. Further, on the upper surfaces of the left and right fixing parts 120, the edge members 50 of each ceiling part, which are arranged on the central side in the left - right direction (the apex side of the substantially V - shaped part) of the ceiling structure 1, are respectively arranged. In this embodiment, the ceiling surface member 60, the fixing part 120, and the edge member 50 are integrally fixed by screws or the like.

[0050] Also, as shown in FIG. 3, the edge members 50 of each ceiling part are arranged such that the end portions on the central side in the left - right direction (the corner portions in the front view) of the ceiling structure 1 generally coincide with the boundary portion (crease) between the central part 110 and the fixing part 120 of the connecting plate 100. According to the above configuration, the connecting plate 100 can be preferably pressed by the edge member 50, and the connecting plate 100 can be reinforced. Thereby, the deformation of the connecting plate 100 can be suppressed.

[0051] The first reinforcing fitting 200 shown in FIGS. 1 and 2, and FIGS. 4 to 6 is a member to which the edge receiver 30 (the central - side edge receiver 30C), the edge receiver brace 70, the brace connecting member 92, and the ceiling surface member 60 are respectively fixed. Note that FIG. 6 shows the first reinforcing fitting 200 in a state attached to the edge receiver 30 and the like, and FIGS. 4 and 5 show the first reinforcing fitting 200 in a state arranged such that the ceiling member fixing part 240, which will be described later, is horizontal for convenience of explanation.

[0052] The first reinforcing fitting 200 is formed in a substantially L shape when viewed in the inclined direction of the ceiling surface (see FIGS. 4 and 5(b)). The first reinforcing fitting 200 is formed of a flat metal member. The first reinforcing fitting 200 is provided on the left ceiling portion XL and the right ceiling portion XR, respectively. The first reinforcing fittings 200 provided on each ceiling portion are arranged to be left-right symmetric with each other. Hereinafter, with reference to FIGS. 4 to 6, the first reinforcing fitting 200 disposed on the left ceiling portion XL will be described in detail. The first reinforcing fitting 200 includes a field edge receiving fixing portion 210, a field edge receiving hooking portion 220, a brace connecting fixing portion 230, and a ceiling material fixing portion 240.

[0053] The field edge receiving fixing portion 210 is a portion where the field edge receiver 30 (central field edge receiver 30C) is fixed. Further, the field edge receiving brace 70 is also fixed to the field edge receiving fixing portion 210 (see FIG. 6). The field edge receiving fixing portion 210 constitutes the lower side portion of one side extending upward in the substantially L-shaped first reinforcing fitting 200. The field edge receiving fixing portion 210 is formed with its plate surface facing the front-rear direction. The ends of the field edge receiver 30 and the field edge receiving brace 70 are fixed to the field edge receiving fixing portion 210 by screws or the like (see FIG. 6).

[0054] The field edge receiving hooking portion 220 is a portion that is hooked on the upper end portion of the field edge receiver 30. The field edge receiving hooking portions 220 are respectively formed on both left and right ends in the left-right direction of the field edge receiving fixing portion 210. Specifically, the field edge receiving hooking portions 220 are formed so as to protrude rearward from both left and right ends in the left-right direction at the upper end portion of the field edge receiving fixing portion 210. The tip portions in the protruding direction of the field edge receiving hooking portions 220 extend substantially downward. In this way, the field edge receiving hooking portions 220 are formed in a substantially L-shaped hook shape when viewed in the inclined direction of the ceiling surface.

[0055] The brace connecting fixing portion 230 is a portion where the brace connecting member 92 is fixed. The brace connecting fixing portion 230 constitutes the upper side portion of one side extending upward in the substantially L-shaped first reinforcing fitting 200. The brace connecting fixing portion 230 is formed with its plate surface facing the front-rear direction.

[0056] The ceiling member fixing portion 240 is the portion to which the ceiling surface member 60 is fixed. The ceiling member fixing portion 240 constitutes one side that extends rearward among the substantially L-shaped first reinforcing metal fitting 200. The ceiling member fixing portion 240 is arranged substantially parallel to the upper surface of the ceiling surface member 60. The angle formed by the ceiling member fixing portion 240 and the edge receiving fixing portion 210 as viewed in the inclination direction of the ceiling surface (substantially the left-right direction) is formed to be approximately 90°. The ceiling member fixing portion 240 is fixed to the ceiling surface member 60 by screws or the like. Appropriate lower holes through which screws are inserted can be formed in the ceiling member fixing portion 240. Further, in the illustrated example, an example in which the distal end portion in the extending direction of the ceiling member fixing portion 330 is bent substantially upward is shown.

[0057] As shown in FIGS. 1 and 2, the first reinforcing metal fitting 200 as described above is provided at substantially the central portion in the longitudinal direction of the central side edge receiver 30C. In the illustrated example, the first reinforcing metal fitting 200 is arranged between the front and rear short edge receivers 31 (see FIGS. 1 and 6). The first reinforcing metal fitting 200 is attached to the central side edge receiver 30C by fixing the edge receiver fixing portion 210 and the central side edge receiver 30C with screws or the like in a state where the edge receiver hooking portion 220 is hooked on the central side edge receiver 30C.

[0058] Also, as shown in FIG. 6, at the left side portion (the portion outside the left-right direction of the ceiling structure 1) of the edge receiver fixing portion 210 of the first reinforcing metal fitting 200, the lower end portion of the edge receiver brace 70 is fixed with screws or the like. Further, at the right side portion (the portion on the central side in the left-right direction of the ceiling structure 1) of the brace connecting fixing portion 230 of the first reinforcing metal fitting 200, the end portion of the brace connecting member 92 is fixed with screws or the like.

[0059] The first reinforcing metal fitting 200 disposed in the left ceiling portion XL has been described above. The first reinforcing metal fitting 200 of the right ceiling portion XR disposed symmetrically with respect to the first reinforcing metal fitting 200 of the left ceiling portion XL is also attached to the central side edge receiver 30C in substantially the same manner as the above-described example, and the edge receiver brace 70 and the brace connecting member 92 are fixed. In a state where the above-described members are fixed to each other, the left and right edge receiver braces 70 are connected via the left and right first reinforcing metal fittings 200 and the brace connecting member 92.

[0060] In this embodiment, the fixing position of the tip of the edge receiving brace 70 and the edge receiving fixing portion 210 of the first reinforcing fitting 200 is arranged to correspond to (substantially coincide with) the center of gravity of the ceiling surface (the ceiling surface formed by the two ceiling surface members 60) of each ceiling portion (the left ceiling portion XL and the right ceiling portion XR) in plan view. In this embodiment, the center of gravity of each ceiling surface member 60 (the ceiling surface member 60 of each ceiling portion) is set at substantially the center in plan view of the ceiling surface formed by the two ceiling surface members 60 (see FIG. 1).

[0061] The second reinforcing fittings 300 shown in FIGS. 1 and 2 and FIGS. 7 to 9 are members fixed to the edge receiving joint brace 80, the edge receiving joint member 40, and the ceiling surface member 60, respectively. The second reinforcing fitting 300 is formed in a substantially L shape in front view (see FIGS. 7 and 8(b)). The second reinforcing fitting 300 is formed of a flat metal member. The second reinforcing fittings 300 are provided on the left ceiling portion XL and the right ceiling portion XR, respectively. The second reinforcing fittings 300 provided on each ceiling portion are arranged to be symmetric with each other left and right.

[0062] Hereinafter, attention will be paid to the second reinforcing fitting 300 arranged on the left ceiling portion XL with reference to FIGS. 7 to 9. Also in this embodiment, a pair (two for each ceiling portion) of the second reinforcing fittings 300 are provided at intervals in the front-rear direction for each ceiling portion. The pair of second reinforcing fittings 300 have the same configuration. The second reinforcing fitting 300 includes an edge receiving joint fixing portion 310, an edge receiving joint hooking portion 320, and a ceiling member fixing portion 330.

[0063] The edge receiving joint fixing portion 310 is a portion to which the edge receiving joint member 40 is fixed. Also, the edge receiving joint brace 80 is fixed to the edge receiving joint fixing portion 310 (see FIG. 9). The edge receiving joint fixing portion 310 constitutes one side extending upward among the second reinforcing fittings 300 formed in a substantially L shape. The edge receiving joint fixing portion 310 is arranged with the plate surface facing in the left-right direction. The edge receiving joint fixing portion 310 is formed in a substantially rectangular shape that is long in the front-rear direction in side view.

[0064] The edge receiving and inheriting hooking portion 320 is a portion that is hooked to the upper end portion of the edge receiving and inheriting member 40. The edge receiving and inheriting hooking portion 320 is formed over the entire upper end portion of the edge receiving and inheriting fixing portion 310. The edge receiving and inheriting hooking portion 320 is formed so as to protrude rightward (toward the center in the left - right direction of the ceiling structure 1) from the upper end portion of the edge receiving and inheriting fixing portion 310. The protruding direction tip portion of the edge receiving and inheriting hooking portion 320 extends substantially downward. In this way, the edge receiving and inheriting hooking portion 320 is formed in a substantially L - shaped hook shape when viewed in the inclination direction of the ceiling surface.

[0065] The ceiling material fixing portion 330 is a portion to which the ceiling surface material 60 is fixed. The ceiling material fixing portion 330 constitutes one side that extends toward the center in the left - right direction of the ceiling structure 1 among the substantially L - shaped second reinforcing metal fittings 300. The ceiling material fixing portion 330 is arranged substantially parallel to the upper surface of the ceiling surface material 60. The angle formed between the ceiling material fixing portion 330 and the edge receiving and inheriting fixing portion 310 in a front view is formed to be approximately 120°. The ceiling material fixing portion 330 is fixed to the ceiling surface material 60 by screws or the like. Appropriate lower holes through which screws are inserted can be formed in the ceiling material fixing portion 330. Also, in the illustrated example, an example in which the extending direction tip portion of the ceiling material fixing portion 330 is bent substantially upward is shown. The side surface of the extending direction tip portion of the ceiling material fixing portion 330 abuts against the side surface of the edge 50.

[0066] As shown in FIG. 9, the front and rear second reinforcing metal fittings 300 are provided on the edge receiving and inheriting member 40 so as to be located on both sides in the front - rear direction of the center - side edge receiver 30C. The second reinforcing metal fitting 300 is attached to the edge receiving and inheriting member 40 by fixing the edge receiving and inheriting fixing portion 310 and the edge receiving and inheriting member 40 with screws or the like in a state where the edge receiving and inheriting hooking portion 320 is hooked to the edge receiving and inheriting member 40.

[0067] As shown in Fig. 9, the lower end of the front edge receiving relay brace 80 is fixed to the front edge receiving relay fixing portion 310 of the second reinforcing fitting 300 on the front side with screws or the like. Also, the lower end of the rear edge receiving relay brace 80 is fixed to the rear edge receiving relay fixing portion 310 of the second reinforcing fitting 300 on the rear side with screws or the like.

[0068] As described above, the second reinforcing fitting 300 disposed on the left ceiling portion XL has been explained. The second reinforcing fitting 300 of the right ceiling portion XR disposed symmetrically with respect to the second reinforcing fitting 300 of the left ceiling portion XL is also attached to the edge receiving relay member 40 and the edge receiving relay brace 80 is fixed in substantially the same manner as in the above-described example.

[0069] According to the ceiling structure 1 as described above, the ceiling face material 60 is fixed to the edge 50 supported by using the edge receiver 30, the edge receiving relay member 40, the edge receiving brace 70, the edge receiving relay brace 80, the first reinforcing fitting 200, and the second reinforcing fitting 300, whereby a ceiling disposed obliquely with respect to the horizontal direction can be formed.

[0070] According to the ceiling structure 1 according to the present embodiment, it is possible to suppress the falling off of the ceiling face material 60 disposed so as to be inclined. That is, in the case of the ceiling structure 1 having an obliquely shaped ceiling face, unlike the ceiling structure having a horizontal ceiling face, the ceiling face material 60 is divided into left and right at the center in the left-right direction (the apex of the substantially V-shaped ceiling face) (see Fig. 3(a)). For this reason, it is necessary to provide braces (the edge receiving brace 70 and the edge receiving relay brace 80) in each ceiling portion. Here, when the ceiling face materials 60 of each ceiling portion are not sufficiently connected, for example, when the ceiling face material 60 sways in the horizontal direction during an earthquake, it becomes difficult to suitably transmit the horizontal force generated in the ceiling face material 60 to the braces of the ceiling portions on both sides. As a result, deformation or damage of members such as the edge receiver 30 and the edge 50 may occur, and the ceiling face material 60 may fall off.

[0071] On the one hand, in the ceiling structure 1 according to the present embodiment, the connecting plate 100 connects the ends of the ceiling surface materials 60 of each ceiling part (the left ceiling part XL and the right ceiling part XR). According to the above configuration, the left ceiling part XL and the right ceiling part XR can be integrally fixed, and the horizontal force generated during an earthquake or the like can be suitably transmitted to the braces of the ceiling parts on both sides through the ceiling surface materials 60 of each ceiling part. Thereby, deformation and damage of members such as the edge support 30 and the edge 50 can be suppressed, and furthermore, the ceiling surface material 60 can be prevented from falling off.

[0072] Also, in the present embodiment, the fixing positions of the tip of the edge support brace 70 and the edge support fixing part 210 of the first reinforcing fitting 200 are arranged so as to generally coincide with the center of gravity of the ceiling surface material 60 of each ceiling part in plan view. Thereby, the horizontal force generated in the ceiling surface material 60 can be more suitably transmitted to the brace. That is, when the tip of the edge support brace 70 is deviated (eccentric) from the center of gravity of the ceiling surface material 60, a moment is generated when the ceiling surface material 60 sways in the horizontal direction, making it difficult to suitably transmit the horizontal force generated in the ceiling surface material 60 to the braces of the ceiling parts on both sides. On the other hand, according to the ceiling structure 1 according to the present embodiment, the horizontal force applied to the center of gravity of the ceiling surface material 60 can be directly transmitted to the edge support brace 70.

[0073] As described above, the first embodiment of the present invention has been described. However, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0074] Hereinafter, with reference to FIG. 11, a second embodiment of the present invention will be described. In the description of the following alternative embodiments, the differences from the first embodiment will be described, and the description of the common configurations will be omitted as appropriate.

[0075] The ceiling structure 1A according to the second embodiment is different from the ceiling structure 1 according to the first embodiment in that a fitting 41A is adopted instead of the fitting 41 as a member for joining the edge receiver 30 and the edge receiver joint member 40. The fitting 41A is formed of a flat metal member. The fitting 41A is provided in each ceiling portion. In FIG. 11, the fitting 41A of the right ceiling portion XR is shown. The ceiling structure 1A includes a first fixing portion 41a, a second fixing portion 41b, and a contact portion 41c. Since the configurations of the first fixing portion 41a and the second fixing portion 41b are substantially the same as those of the fitting 41, the description thereof is omitted.

[0076] The contact portion 41c is a portion that contacts the upper surface of the edge receiver 30. The contact portion 41c is formed so as to extend rearward from the middle portion in the vertical direction of the first fixing portion 41a. The contact portion 41c is formed in a shape substantially parallel to the upper surface of the edge receiver 30. That is, the inclination angle of the contact portion 41c with respect to the horizontal plane is formed substantially the same as the inclination angle of the edge receiver 30. The contact portion 41c is formed on both sides in the left-right direction of the first fixing portion 41a. The left and right contact portions 41c are arranged so that their heights are different.

[0077] As shown in FIGS. 11(a) and (b), when attaching the fitting 41A to the edge receiver 30, first, the contact portion 41c of the fitting 41A is brought into contact with the upper surface of the edge receiver 30. In this state, the fitting 41A is in a posture in which the upper surface of the second fixing portion 41b is substantially horizontal. Thus, according to the present embodiment, it becomes easy to maintain the posture of the fitting 41A with respect to the horizontal plane, and the workability when joining the edge receiver 30 and the edge receiver joint member 40 can be improved.

[0078] As described above, with the fitting 41A positioned with respect to the edge receiver 30, the first fixing portion 41a is fixed to the edge receiver 30 using screws or the like, and the edge receiver joint member 40 is placed on the upper surface of the second fixing portion 42b, and the second fixing portion 42b is fixed to the edge receiver joint member 40 using screws or the like, whereby the edge receiver 30, the edge receiver joint member 40, and the fitting 41 can be easily fixed.

[0079] As described above, the ceiling structure 1 according to the present embodiment is a ceiling structure 1 installed on a ceiling suspension support A (installation target) that constitutes a building H, a pair of ceiling surface members 60 (ceiling materials) that form a ceiling surface that slopes downward with respect to the horizontal plane as they approach each other, skirting edges 50 provided on each of the pair of ceiling surface members 60, support members (skirting edge receivers 30 and skirting edge joint members 40) arranged along the inclination direction of the ceiling surface and supporting the skirting edges 50, braces (skirting edge receivers 70 and skirting edge joint braces 80) installed between the ceiling suspension support A and the support members (skirting edge receivers 30 and skirting edge joint members 40) and fixed to the ceiling surface members 60 and the support members (skirting edge receivers 30 and skirting edge joint members 40) to each other, a connecting plate 100 (ceiling material connecting member) that connects the tip ends of the pair of ceiling surface members 60 in the approaching direction, and includes.

[0080] With such a configuration, it is possible to suppress the ceiling surface member 60 arranged to be inclined with respect to the horizontal direction from falling off. That is, by connecting the ends of the ceiling surface members 60 of each ceiling part (left ceiling part XL and right ceiling part XR) with the connecting plate 100, the left ceiling part XL and the right ceiling part XR can be integrally fixed. As a result, the horizontal force generated during an earthquake or the like can be suitably transmitted to the braces of the ceiling parts on both sides through the ceiling surface members 60 of each ceiling part, so that deformation and damage of members such as the skirting edge receiver 30 and the skirting edge 50 can be suppressed, and thus the ceiling surface member 60 can be suppressed from falling off.

[0081] Further, the connecting plate 100 is fixed to the ceiling surface member 60 integrally with the skirting edge 50.

[0082] With such a configuration, the connecting plate 100 can be reinforced using the skirting edge 50.

[0083] Further, the connecting plate 100 includes: a central portion 110 extending horizontally so as to straddle between the pair of ceiling surface members 60; fixed portions 120 formed so as to extend along the inclined direction of the ceiling surface from both end portions in the extending direction of the central portion 110 and fixed to the ceiling surface members 60; and the edge strip 50 is arranged so as to be positioned at the boundary portion between the central portion 110 and the fixed portion 120.

[0084] With such a configuration, the edge strip 50 can preferably hold down the connecting plate 100, and the connecting plate 100 can be reinforced. Thereby, deformation of the connecting plate 100 can be suppressed.

[0085] Further, the ceiling structure 1 includes reinforcing members (a first reinforcing fitting 200 and a second reinforcing fitting 300) to which the ceiling surface members 60, the support members (the edge receiver 30 and the edge receiver joint member 40), and the braces (the edge receiver brace 70 and the edge receiver joint brace 80) are fixed; the support members include an edge receiver 30 to which the edge strip 50 is fixed; the braces include an edge receiver brace 70 installed between the ceiling suspension receiver A and the edge receiver 30; the reinforcing members include a first reinforcing fitting 200 (an edge receiver reinforcing member) to which the ceiling surface member 60, the edge receiver 30, and the edge receiver brace 70 are fixed; a portion where the edge receiver brace 70 and the first reinforcing fitting 200 are fixed is arranged at a position corresponding to the center of gravity of the ceiling surface member 60 (the center of gravity of the ceiling surface of each ceiling portion formed by the two ceiling surface members 60).

[0086] With such a configuration, the horizontal force generated on the ceiling surface member 60 can be more suitably transmitted to the brace. That is, when the tip of the edge receiving brace 70 is deviated from the center of gravity of the ceiling surface member 60, it becomes difficult to suitably transmit the horizontal force generated on the ceiling surface member 60 to the braces on both sides of the ceiling part. On the other hand, according to the configuration according to the present embodiment, the horizontal force applied to the center of gravity of the ceiling surface member 60 can be directly transmitted to the edge receiving brace 70.

[0087] Further, the ceiling structure 1 according to the present embodiment includes a brace connecting member 92 that is formed to extend in the horizontal direction and connects the first reinforcing metal fittings 200 fixed to the pair of ceiling surface members 60.

[0088] With such a configuration, the left and right edge receiving braces 70 can be suitably connected to each other, and the rigidity of the ceiling structure 1 can be increased.

[0089] Further, the ceiling structure 1 according to the present embodiment includes an edge receiving connecting member 91 that is formed to extend in the horizontal direction and connects the edge receivers 30 provided on the pair of ceiling surface members 60.

[0090] With such a configuration, the left and right edge receivers 30 can be suitably connected to each other, and the rigidity of the ceiling structure 1 can be increased.

[0091] Further, the support member includes an edge receiving joint member 40 that is fixed to intersect the edge receiver 30 in a plan view, The brace includes an edge receiving joint member 40 brace that is installed between the installation target of the ceiling surface member 60 and the edge receiving joint member 40. The reinforcing member includes a second reinforcing metal fitting 300 (edge receiving joint reinforcing member) to which the ceiling surface member 60, the edge receiving joint member 40, and the edge receiving joint member 40 brace are fixed.

[0092] With such a configuration, the horizontal force transmitted through the edge receiving and connecting member 40 can be suitably transmitted to the edge receiving and connecting member 40 brace.

[0093] Also, the ceiling structure 1A according to the present embodiment The support member is formed so as to extend along the inclination direction of the ceiling surface, and includes an edge receiver 30 to which the edge is fixed, an edge receiving and connecting member 40 formed so as to extend along the horizontal direction and arranged so as to intersect the edge receiver 30 in a plan view, and includes a joining fitting 41A (joining member) for joining the edge receiver 30 and the edge receiving and connecting member 40, The joining fitting 41A is formed in a shape parallel to the inclination direction of the ceiling surface, and includes a contact portion 41c that contacts the upper surface of the edge receiver 30, a first fixing portion 41a (edge receiver fixing portion) fixed to the edge receiver 30, a second fixing portion 41b (edge receiving and connecting fixing portion) that is located above the first fixing portion 41a and is formed in a shape parallel to the horizontal plane and to which the edge receiving and connecting member 40 is fixed, and is provided with

[0094] With such a configuration, the posture of the joining fitting 41A can be easily maintained. Thereby, the workability when joining the edge receiver 30 and the edge receiving and connecting member 40 can be improved.

[0095] Note that the edge receiver 30 and the edge receiving and connecting member 40 are one embodiment of the support member. Also, the joining fitting 41A is one embodiment of the joining member. Also, the first fixing portion 41a is one embodiment of the edge receiver fixing portion. Also, the second fixing portion 41b is one embodiment of the edge receiving and connecting fixing portion. Also, the ceiling surface material 60 is one embodiment of the ceiling material. Further, the first reinforcing fitting 200 is an embodiment of the edge receiving reinforcing member. Also, the second reinforcing fitting 300 is an embodiment of the edge receiving joint reinforcing member.

[0096] As described above, the embodiments of the present invention have been described. However, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0097] For example, in each of the above embodiments, as the connecting member 90, an example in which the edge receiving connecting member 91 and the brace connecting member 92 are provided has been shown. However, the present invention is not limited to such a mode, and one or both of the above members may not be provided.

[0098] Also, in each of the above embodiments, an example in which a pair of second reinforcing fittings 300 spaced apart front and rear are provided for each ceiling portion has been shown. However, the present invention is not limited to such a mode, and the pair of second reinforcing fittings 300 may be integrally formed.

[0099] Also, in each of the above embodiments, an example in which the ceiling surface material 60 is formed of a wooden board has been shown. However, the present invention is not limited to such a mode, and for example, the ceiling surface material 60 may be formed of a plate-shaped gypsum board or the like.

Explanation of Reference Numerals

[0100] 1 Ceiling structure 30 Edge receiver 40 Edge receiving joint member 50 Edge 60 Ceiling surface material 70 Edge receiving brace 80 Edge receiving joint brace 100 Connecting plate 200 First reinforcing fitting 300 Second reinforcing fitting

Claims

1. A ceiling structure installed on an object to be installed that constitutes a building, A pair of ceiling members that form a ceiling surface that slopes downward with respect to the horizontal plane as they approach each other, Edges provided on each of the pair of ceiling members, A support member arranged along the inclination direction of the ceiling surface and supporting the edge, A brace installed between the object to be installed and the support member and fixed to the ceiling member and the support member to each other, A ceiling member connecting member that connects the tip ends of the pair of ceiling members in the approaching direction, A ceiling structure comprising.

2. The ceiling member connecting member is Fixed to the ceiling member integrally with the edge, The ceiling structure according to claim 1.

3. The ceiling member connecting member is A central portion extending horizontally so as to straddle between the pair of ceiling members, Fixed portions formed to extend along the inclination direction of the ceiling surface from both ends in the extending direction of the central portion and fixed to the ceiling member, Comprising, The edge is Arranged so as to be located at the boundary portion between the central portion and the fixed portion, The ceiling structure according to claim 2.

4. Reinforcing members fixed to the ceiling member, the support member, and the brace respectively are provided, The support member is Including an edge receiver to which the edge is fixed, The brace is Including an edge receiver brace installed between the object to be installed of the ceiling member and the edge receiver, The reinforcing member is Including an edge receiver reinforcing member to which the ceiling member, the edge receiver, and the edge receiver brace are fixed, The portion where the edge receiver brace and the edge receiver reinforcing member are fixed is arranged at a position corresponding to the center of gravity of the ceiling member, The ceiling structure according to any one of claims 1 to 3.

5. A brace connecting member that is formed to extend horizontally and connects the edge receiver reinforcing members fixed to the pair of ceiling members is provided, The ceiling structure according to claim 4.

6. An edge receiver connecting member that is formed to extend horizontally and connects the edge receivers provided on the pair of ceiling members is provided, The ceiling structure according to claim 5.

7. The support member is Including an edge receiver joint member fixed so as to intersect the edge receiver in plan view, The brace is Including an edge receiver joint member brace installed between the object to be installed of the ceiling member and the edge receiver joint member, The reinforcing member is including a ceiling member, the eaves receiving and connecting member, and an eaves receiving and connecting reinforcing member to which the eaves receiving and connecting member brace is fixed The ceiling structure according to claim 5.

8. The support member is formed to extend along the inclination direction of the ceiling surface, and an eaves receiver to which the eaves is fixed is formed to extend along the horizontal direction and is arranged to intersect the eaves receiver in a plan view, and an eaves receiving and connecting member including comprises a joining member for joining the eaves receiver and the eaves receiving and connecting member The joining member is formed in a shape parallel to the inclination direction of the ceiling surface, and has a contact portion that contacts the upper surface of the eaves receiver an eaves receiver fixing portion fixed to the eaves receiver is located above the eaves receiver fixing piece portion and is formed in a shape parallel to the horizontal plane, and an eaves receiving and connecting fixing portion to which the eaves receiving and connecting member is fixed comprising The ceiling structure according to claim 1.

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