Ceiling structure

Abstract

To provide a ceiling structure for surely preventing ceiling plates from falling in a swimming pool or the like.SOLUTION: A ceiling structure related to the present disclosure comprises: a first T bar 11 arranged under ceiling structure materials and extending in a direction crossing a vertical direction; a second T bar 12 having an end part 12a arranged at a position adjacent to the first T bar 11 and arranged at the almost same height as the first T bar 11 and extending in a direction crossing the first T bar 11; a cruciform joint 13 connecting the end part 12a of the second T bar 12 to the first T bar 11; and ceiling plates arranged in a region 15 partitioned by the first T bar 11 and the second T bar 12, and supported by the first T bar 11 and the second T bar 12 from below. The cruciform joint 13, in a state of covering an adjacent part of the end part 12a of the second T bar 12 and the first T bar 11 from below, is fixed to both of the end part 12a of the second T bar 12 and the first T bar 11, and restricts relative movement of the first T bar 11 and the end part 12a of the second T bar 12.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a ceiling structure.

Background Art

[0002] In Patent Document 1, a ceiling runner is arranged in a ceiling area substantially in a lattice form, a plurality of board dropping areas are defined on a ceiling surface by a support band of the ceiling runner, a ceiling interior material of a predetermined size is dropped into each board dropping area, and in a ceiling structure of a board dropping method in which the ceiling interior material is placed on the support band, the ceiling interior material is made of a gypsum board having a size that can be accommodated in the board dropping area and a plate thickness of 12 mm or more.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, a ceiling provided in a high-temperature and high-humidity environment such as a pool, if ventilation is not sufficient, water vapor will invade into the ceiling space due to the high-temperature and high-humidity environment or the like, condensation will occur inside the ceiling, the ceiling board will become heavy, and the frame will be pushed by the expanding ceiling board and deformed, and there is a risk that the ceiling board will fall.

[0005] Therefore, an object of the present disclosure is to provide a ceiling structure capable of surely suppressing the fall of a ceiling board in a pool or the like.

Means for Solving the Problems

[0006] To solve the above problems, a first aspect of the present invention is a ceiling structure comprising: a first ceiling panel holding member disposed below a ceiling structural material and extending in a direction intersecting the vertical direction; a second ceiling panel holding member having an end positioned adjacent to the first ceiling panel holding member and positioned at approximately the same height as the first ceiling panel holding member and extending in a direction intersecting the first ceiling panel holding member; a joint member connecting the end of the second ceiling panel holding member and the first ceiling panel holding member; and a ceiling panel disposed in a region partitioned by the first ceiling panel holding member and the second ceiling panel holding member and supported from below by the first ceiling panel holding member and the second ceiling panel holding member, wherein the joint member is fixed to both the end of the second ceiling panel holding member and the first ceiling panel holding member, covering from below the adjacent portion between the end of the second ceiling panel holding member and the first ceiling panel holding member, and restricting relative movement between the first ceiling panel holding member and the end of the second ceiling panel holding member.

[0007] A second aspect of the present invention is a ceiling structure according to the first aspect, wherein the joint member has a main body located below the first ceiling panel holding member and the second ceiling panel holding member, at least one pair of first stopper portions extending upward from the main body and located on both sides of the first ceiling panel holding member, and at least one pair of second stopper portions extending upward from the main body and located on both sides of the second ceiling panel holding member.

[0008] A third aspect of the present invention is a ceiling structure according to the first or second aspect, wherein both the first ceiling panel holding member and the second ceiling panel holding member each have a supporting upper surface portion that supports the outer edge of the ceiling panel from below, and an airtight member is disposed between the supporting upper surface portions of the first and second ceiling panel holding members and the outer edge of the ceiling panel.

[0009] A fourth aspect of the present invention is the ceiling structure according to the third aspect, wherein the airtight member is arranged between the support upper surface of the first ceiling panel holding member and the second ceiling panel holding member and the outer edge of the entire circumference of the ceiling panel.

[0010] A fifth aspect of the present invention is a ceiling structure according to any of the first to fourth aspects, wherein the adjacent portion between the first ceiling panel holding member and the end of the second ceiling panel holding member is sealed with a sealing material.

[0011] A sixth aspect of the present invention is the ceiling structure according to the fifth aspect, wherein the sealing material adheres the ends of the first ceiling panel holding member and the second ceiling panel holding member to the lower joint member.

[0012] A seventh aspect of the present invention is a ceiling structure according to any of the first to sixth aspects, wherein the weight per unit area of ​​the ceiling panel is 1.5 kg / m². 2 The following applies: [Effects of the Invention]

[0013] According to this disclosure, it is possible to reliably prevent ceiling panels from falling in swimming pools and the like. [Brief explanation of the drawing]

[0014] [Figure 1] This is a perspective view of a ceiling structure according to one embodiment of the present invention. [Figure 2] This is an explanatory diagram illustrating the attachment of the second T-bar to the first T-bar. [Figure 3] This is a front view of the second hanger, where (a) shows the main body, (b) shows the first connecting plate, and (c) shows the second connecting plate. [Figure 4] This is a side view of the second hanger, where (a) shows the main body, (b) shows the first connecting plate, and (c) shows the second connecting plate. [Figure 5] This is a perspective view of the end of the first T-bar. [Figure 6] This is a perspective view of a cross joint. [Figure 7] This is a top view of the connecting section using a cross joint. [Figure 8] This is a top view of the connection section using a T-joint. [Figure 9]It is a perspective view of a T-shaped joint. [Figure 10] It is a perspective view showing the state where the release paper of the airtight tape is peeled off. [Figure 11] It is a perspective view showing the state where the ceiling board is attached. [Figure 12] It is a schematic view showing a modified example of the ceiling structure.

Mode for Carrying Out the Invention

[0015] Hereinafter, an embodiment of the present invention will be described based on the drawings. In each figure, the X direction indicates upward along the vertical direction, the Y direction indicates a direction intersecting the X direction, and the Z direction indicates a direction intersecting both the Y direction and the X direction. Also, in each figure, the same reference numerals indicate the same or corresponding parts. Further, the present invention is not limited to these embodiments as will be apparent from the following description, and various modifications are possible for those skilled in the art within the scope of the gist of the invention. In this embodiment, the Y direction and the Z direction will be described as being orthogonal to each other.

[0016] FIG. 1 is a perspective view of a ceiling structure 1 according to an embodiment of the present invention. FIG. 2 is an explanatory view for explaining the attachment of the second T-bar 12 to the first T-bar 11. FIG. 3 is a front view of the second hanger 5 (front view viewed from the Z direction), where (a) shows the main body 5a, (b) shows the first connection plate 5b, and (c) shows the second connection plate 5c. FIG. 4 is a side view of the second hanger 5, where (a) shows the main body 5a, (b) shows the first connection plate 5b, and (c) shows the second connection plate 5c. In FIG. 1, the illustration of the second T-bar 12 is omitted.

[0017] As shown in Figure 1, the ceiling structure 1 according to this disclosure is applied, for example, to a suspended ceiling structure that is positioned below a ceiling structural member S and suspended from the ceiling structural member S. In this embodiment, the ceiling structure 1 is supported by the ceiling structural member S via suspension bolts 2 hanging down from the ceiling structural member S, a first hanger 3 attached to the lower end of the suspension bolts 2, a support bar 4 attached to the suspension bolts 2 via the first hanger 3, and a second hanger 5 attached to the support bar 4.

[0018] The ceiling structural material S is, for example, the ceiling frame (ceiling slab). However, the ceiling structural material S is not limited to the ceiling frame, and may also be, for example, a purlin, beam, or horizontal member attached along or intersecting these.

[0019] The suspension bolt 2 is a long bolt, and its upper end is supported by the ceiling structural member S. In this embodiment, multiple suspension bolts 2 hang down from the ceiling structural member S.

[0020] The first hanger 3 is a hanger for supporting the support bar 4 and is attached to the lower end of the suspension bolt 2. The first hanger 3 has a plate-shaped top plate portion 3a that intersects the vertical direction and a roughly J-shaped hanger body 3b that extends downward from the top plate portion 3a. A bolt insertion hole (not shown) that penetrates in the vertical direction is formed in the top plate portion 3a. The suspension bolt 2 is fastened and fixed to the top plate portion 3a by upper and lower tightening nuts with its lower end inserted through the bolt insertion hole in the top plate portion 3a of the first hanger 3. The first hanger 3 may be a first hanger 3 that can follow the inclination of the support bar 4 in the Y direction (slope relative to the horizontal direction).

[0021] The support bar 4 is a member for supporting the first T-bar 11 and the second T-bar 12, which will be described later, via the second hanger 5, and extends along the Y direction. In this embodiment, the support bar 4 is formed in a rectangular cross-section, and multiple support bars are provided, spaced apart from each other in the Z direction. Note that Figures 1 and 2 show one support bar 4, and the other support bars 4 are not shown. Furthermore, the cross-sectional shape of the support bar 4 is not limited to a rectangular shape, but may be C-shaped, for example.

[0022] As shown in Figures 1 to 4, the second hanger 5 is attached to the support bar 4 and supports the first T-bar 11, which will be described later. The second hanger 5 has a main body 5a attached to the support bar 4, and a first connecting plate 5b and a second connecting plate 5c attached to the main body 5a that clamp the first T-bar 11.

[0023] The main body 5a of the second hanger 5 integrally includes a locking portion 51 that engages with the support bar 4 and a support portion 52 to which the first connecting plate 5b and the second connecting plate 5c are attached. In a side view (see Figure 4), the locking portion 51 is formed in a downward-facing U-shape and is hooked onto the support bar 4 from above. Through holes 53 are formed in both side walls 51a, 51a of the locking portion 51 that face each other in the Z direction. With the locking portion 51 engaged with the support bar 4, the locking portion 51 is fixed to the support bar 4 by screws or bolts inserted through the through holes 53. The support portion 52 is formed in a plate shape that intersects with the Y direction and extends downward from one side wall 51a of the locking portion 51. A through hole 54 is formed in the lower part of the support portion 52. The first connecting plate 5b and the second connecting plate 5c are fastened and fixed to the support portion 52 of the main body 5a by screws or bolts inserted through the insertion holes 54 of the support portion 52. The first connecting plate 5b and the second connecting plate 5c are tiltable relative to the support portion 52 of the main body 5a by loosening the screws or bolts. In other words, the second hanger 5 is formed to follow the inclination in the Z direction (gradient relative to the horizontal direction) of the second T-bar 12, which will be described later.

[0024] The first connecting plate 5b and the second connecting plate 5c of the second hanger 5 are arranged facing each other in the Y direction and are configured symmetrically. The first connecting plate 5b and the second connecting plate 5c are formed in a plate shape that intersects with the Y direction. Through holes 55 are formed in the upper parts of the first connecting plate 5b and the second connecting plate 5c. Locking grooves 56 are formed in the lower parts of the first connecting plate 5b and the second connecting plate 5c, extending in the Z direction while protruding in a direction away from each other. The locking portion 18 (see Figure 5) of the vertical plate portion 16 of the first T-bar 11, which will be described later, is locked into the locking grooves 56 of the first connecting plate 5b and the second connecting plate 5c. The first connecting plate 5b and the second connecting plate 5c are fastened and fixed to the support portion 52 of the main body 5a by screws or bolts (not shown) that pass through the insertion holes 55 of the first connecting plate 5b and the second connecting plate 5c, and the insertion holes 54 of the support portion 52, with the support portion 52 of the main body 5a positioned on the upper side between the first connecting plate 5b and the second connecting plate 5c, and the locking portion 18 of the vertical plate portion 16 of the first T-bar 11 (described later) positioned between the locking grooves 56 of the first connecting plate 5b and the second connecting plate 5c on the lower side. When the first connecting plate 5b and the second connecting plate 5c are fastened and fixed to the support portion 52 of the main body 5a, the locking portion 18 of the vertical plate portion 16 of the first T-bar 11 is locked into the locking grooves 56 of the first connecting plate 5b and the second connecting plate 5c, and the first T-bar 11 is supported by the second hanger 5.

[0025] As shown in Figures 1 and 2, the ceiling structure 1 comprises a first T-bar (first ceiling panel holding member) 11 positioned below the ceiling structural material S and extending in a direction intersecting the vertical direction, a second T-bar (second ceiling panel holding member) 12 positioned at the same height as the first T-bar 11 and extending in a direction intersecting the first T-bar 11, a cross joint (joint member) 13 connecting the first T-bar 11 and the second T-bar 12, and a ceiling panel 14 (see Figure 11) supported by the first T-bar 11 and the second T-bar 12. In this embodiment, the ceiling structure 1 comprises a plurality of first T-bars 11, a plurality of second T-bars 12 (only one second T-bar 12 is shown in Figure 2), a plurality of cross joints 13, and a plurality of ceiling panels 14.

[0026] As shown in Figure 2, the first T-bar 11 is a member for supporting the ceiling panel 14 from below, and is positioned below the support bar 4 and supported from above by the support bar 4 via the second hanger 5. The first T-bar 11 extends along the Z direction. That is, the first T-bar 11 is positioned below the ceiling structural member S and extends in a direction that intersects with the vertical direction. In this embodiment, multiple first T-bars 11 are positioned spaced apart from each other in the Y direction and extend parallel to each other along the Z direction. The first T-bars 11 support the edges of the ceiling panel 14 (see Figure 11) positioned laterally (on the side along the Y direction) from below.

[0027] The second T-bar 12 is a member for supporting the ceiling panel 14 from below, and has an end (end of the second ceiling panel holding member) 12a positioned adjacent to the first T-bar 11 in the lateral direction (Y direction), positioned at approximately the same height as the first T-bar 11 (position shown by the dashed line in Figure 2), and extends along the Y direction (direction intersecting the first T-bar 11). The second T-bar 12 is formed to be relatively shorter than the first T-bar 11, and has a length that is approximately the same as or slightly shorter than the distance between adjacent first T-bars 11. The second T-bar 12 is connected to the first T-bar 11 via a cross joint 13 and is supported by the first T-bar 11. In this embodiment, the second T-bar 12 is positioned between two first T-bars 11, and both ends 12a of the second T-bar 12 are connected to the first T-bar 11 via a cross joint 13. In other words, the first T-bar 11 and the second T-bar 12 are arranged in a grid pattern, defining a rectangular area 15 on which the ceiling panels 14 are placed. The second T-bar 12 supports the edges of the ceiling panels 14, which are positioned laterally (along the Z-direction), from below.

[0028] Figure 5 is a perspective view of the end of the first T-bar 11.

[0029] As shown in Figures 2 and 5, the first T-bar 11 and the second T-bar 12 have substantially the same cross-sectional shape. The first T-bar 11 and the second T-bar 12 are formed in an inverted T-shape in cross-section and extend in a straight line. The first T-bar 11 and the second T-bar 12 have a vertical plate portion 16 supported by the second hanger 5 and horizontal plate portions 17 extending from the lower end of the vertical plate portion 16 to both sides. Although only the first T-bar 11 is shown in Figure 5, the second T-bar 12 has substantially the same shape.

[0030] The vertical plate portions 16 of the first T-bar 11 and the second T-bar 12 are formed in an upright plate shape and extend in a predetermined direction (the extension direction of the first T-bar 11 and the second T-bar 12). The upper end of the vertical plate portion 16 is provided with a locking portion 18 that locks into the locking grooves 56 of the first connecting plate 5b and the second connecting plate 5c of the second hanger 5. The locking portion 18 is a small T-shape with a rim and is formed to be lockable into the locking grooves 56 of the first connecting plate 5b and the second connecting plate 5c of the second hanger 5. The lower end of the vertical plate portion 16 has a cross-sectional shape that is forked from top to bottom, and a space 20 extending along the predetermined direction is defined at the lower end of the vertical plate portion 16. Below the space 20 at the lower end of the vertical plate portion 16 is defined by a horizontal plate portion 17. The space 20 at the lower end of the vertical plate portion 16 allows for the insertion of screws 21 (see Figure 2) from below.

[0031] The horizontal plate portions 17 of the first T-bar 11 and the second T-bar 12 are formed in a plate shape that intersects the vertical direction and extends in the predetermined direction. The horizontal plate portion 17 has upper surfaces (hereinafter referred to as "support upper surfaces") 19 on both sides of the vertical plate portion 16 that support the outer edge of the ceiling plate 14 from below. A pair of outer end edges of the horizontal plate portion 17 that are spaced apart from the vertical plate portion 16 are bent upward. The support upper surfaces 19 of the horizontal plate portions 17 of the first T-bar 11 and the second T-bar 12 are provided with airtight members (in this embodiment, airtight tape 32) to ensure airtightness between the first T-bar 11 and the second T-bar 12 and the ceiling plate 14 (see Figure 10). The airtight tape 32 is attached to the support upper surfaces 19. The height of the upper surface of the airtight tape 32 is set to be approximately the same height as the outer edge of the horizontal plate portion 17, or to a height higher than the outer edge of the horizontal plate portion 17 (see Figure 10).

[0032] Figure 6 is a perspective view of the cross joint 13. Figure 7 is a top view of the connection portion made by the cross joint 13.

[0033] As shown in Figures 6 and 7, the first T-bar 11 and the ends 12a of the second T-bars 12 located on both sides of the first T-bar 11 in the Y direction are connected by a cross joint 13.

[0034] The cross joint 13 has a plate-shaped main body portion 22 that intersects in the vertical direction, two pairs of first stopper portions 23a, 23b extending upward from the main body portion 22, and two pairs of second stopper portions 24a, 24b extending upward from the main body portion 22. In this embodiment, the main body portion 22 is formed in a cross shape.

[0035] The main body 22 of the cross joint 13 is formed in a cross shape, having a central region 22a and four protruding regions 22b, 22c, 22d, and 22e that protrude in four directions from the central region 22a. Screw insertion holes 25 that allow the insertion of screws 21 are each formed in the four protruding regions 22b, 22c, 22d, and 22e. The width of the four protruding regions 22b, 22c, 22d, and 22e (length in the direction intersecting the protruding direction) is formed to be slightly larger than the width of the first T-bar 11 and the second T-bar 12 (length in the direction intersecting the predetermined direction). The cross joint 13 is positioned below the ends 12a of the first T-bar 11 and the second T-bar 12 which are connected to each other, and is fixed to both the end 12a of the second T-bar 12 and the first T-bar 11. In this embodiment, the cross joint 13 is fixed to both the horizontal plate portion 17 of the end 12a of the second T-bar 12 and the horizontal plate portion 17 of the first T-bar 11 by four screws 21 (see Figure 2) that pass through four screw insertion holes 25. The four screws 21 protrude from below into the space 20 at the lower ends of the vertical plate portions 16 of the first T-bar 11 and the second T-bar 12. In the state in which the first T-bar 11 and the end 12a of the second T-bar 12 are connected by the cross joint 13 (hereinafter referred to as the "T-bar connected state"), the main body 22 of the cross joint 13 covers the adjacent portions of the first T-bar 11 (side edge of the horizontal plate portion 17) and the end 12a of the second T-bar 12 (one end edge of the horizontal plate portion 17 in the predetermined direction) from below. In the T-bar connected state, the cross joint 13 restricts the relative movement between the first T-bar 11 and the end 12a of the second T-bar 12.

[0036] The first stopper portions 23a and 23b of the cross joint 13 rise upward from the edges on both sides in the width direction of two linearly aligned protruding regions 22b and 22d, out of the four protruding regions 22b, 22c, 22d, and 22e of the main body 22. In the T-bar connected state, the first stopper portions 23a and 23b are positioned along the sides of the horizontal plate portion 17 on both sides of the first T-bar 11 in the Y direction, restricting the movement of the first T-bar 11 in the Y direction relative to the cross joint 13.

[0037] The second stopper portions 24a and 24b of the cross joint 13 rise upward from the edges on both sides in the width direction of the two linearly aligned protruding regions 22c and 22e of the four protruding regions 22b, 22c, 22d, and 22e of the main body portion 22. In the T-bar connected state, the second stopper portions 24a and 24b are positioned along the sides of the horizontal plate portion 17 on both sides in the Z direction of the end 12a of the second T-bar 12, restricting the movement of the second T-bar 12 in the Z direction relative to the cross joint 13.

[0038] As shown in Figure 7, the adjacent portion between the first T-bar 11 (side edge of the horizontal plate portion 17) and the end portion 12a of the second T-bar 12 in the T-bar connected state is sealed with a sealing material 26. In this embodiment, the sealing is done from above. Examples of the sealing material 26 include a one-component waterproof silicone sealing material. As shown in Figure 7, the sealing material 26 may be applied not only to the first T-bar 11 and the second T-bar 12, but also to a part of the lower cross joint 13, and the ends 12a of the first T-bar 11 and the second T-bar 12 may be bonded to the lower cross joint 13.

[0039] Figure 8 is a top view of the connection portion by the T-joint 27. Figure 9 is a perspective view of the T-joint 27.

[0040] As shown in Figure 8, L-shaped angles 7 are fixed to the wall surface 6 around the entire perimeter of the ceiling installation location. The angle 7 has a vertical plate portion 7a fixed to the wall surface 6 and a horizontal plate portion 7b that bends from the lower end of the vertical plate portion 7a. The angle 7 is positioned at a height corresponding to the ceiling height and fixed to the wall surface 6. The horizontal plate portion 7b of the angle 7 is positioned at approximately the same height as the horizontal plate portions 17 of the first T-bar 11 and the second T-bar 12. The wall surface 6 side end of the first T-bar 11 or the second T-bar 12 (hereinafter referred to as the "wall-side end of the first T-bar 11, etc.") is connected to the angle 7 by a T-joint 27. Figure 8 shows the connection portion between the angle 7 and the first T-bar 11.

[0041] As shown in Figure 9, the T-joint 27 is a member that connects the wall-side end of the first T-bar 11 or the like to the angle 7. The T-joint 27 has a plate-shaped main body portion 28 that intersects in the vertical direction, a pair of T-bar side stopper portions 29a, 29b extending upward from the main body portion 28, and a pair of angle-side stopper portions 30a, 30a extending upward from the main body portion 28. In this embodiment, the main body portion 28 is formed in a T-shape.

[0042] The main body 28 of the T-joint 27 has a central region 28a and three protruding regions 28b, 28c, and 28d that protrude in three directions from the central region 28a. The three protruding regions 28b, 28c, and 28d consist of two protruding regions 28b and 28c that are aligned in a straight line with each other, and one protruding region 28d that protrudes in a direction perpendicular to the direction in which the two protruding regions 28b and 28c are aligned. Screw insertion holes 31 that allow the insertion of screws (not shown) are formed in the center of the central region 28a and in the one protruding region 28d. The width of the two protruding regions 28b and 28c (length in the direction intersecting the protruding direction) is formed to be slightly smaller than the width of the horizontal plate portion 7b of the angle 7. The width of the one protruding region 28d (length in the direction intersecting the protruding direction) is formed to be slightly larger than the width of the first T-bar 11 and the second T-bar 12 (length in the direction intersecting the predetermined direction). The T-joint 27 is positioned below the wall-side end of the first T-bar 11, etc., and the angle 7, and is fixed to both. In this embodiment, the T-joint 27 is fixed to both the horizontal plate portion 17 of the wall-side end of the first T-bar 11, etc., and the horizontal plate portion 7b of the angle 7 by two screws that pass through two screw insertion holes 31. The two screws protrude from below into the space 20 at the lower end of the vertical plate portion 16 of the first T-bar 11 or the second T-bar 12. In the state in which the wall-side end of the first T-bar 11, etc., and the angle 7 are connected by the T-joint 27 (hereinafter referred to as the "T-bar end connection state"), the main body 28 of the T-joint 27 covers the adjacent portion between the wall-side end of the first T-bar 11, etc. (one end edge of the horizontal plate portion 17 in the predetermined direction) and the angle 7 (side end edge of the horizontal plate portion 7b) from below. When the T-bar ends are connected, the T-joint 27 restricts the relative movement between the wall-side end of the first T-bar 11, etc., and the angle 7.

[0043] A pair of T-bar side stopper portions 29a and 29b of the T-joint 27 rise upward from both ends in the width direction of the one protruding region 28d. When the T-bar ends are connected, the T-bar side stopper portions 29a and 29b are positioned along the sides of the horizontal plate portion 17 on both sides of the wall-side end of the first T-bar 11, etc., and restrict movement of the wall-side end of the first T-bar 11, etc. relative to the T-joint 27 in a direction intersecting the extending direction of the wall-side end of the first T-bar 11, etc. (the Y direction in Figure 8).

[0044] The pair of angle-side stopper portions 30a, 30a of the T-joint 27 rise upward from the edge of the two linearly aligned protruding regions 28b, 28c that are spaced apart from the wall surface 6. In the T-bar end connection state, the angle-side stopper portions 30a, 30a are positioned along the side edges of the horizontal plate portion 7b of the angle 7, restricting the movement of the cross joint 13 toward the wall surface 6 relative to the angle 7.

[0045] As shown in Figure 8, the adjacent portion between the wall-side end of the first T-bar 11, etc., in the T-bar end-connected state and the angle 7 is sealed with the same sealing material 26 as described above. In this embodiment, the sealing is done from above. As shown in Figure 8, the sealing material 26 may be applied not only to the wall-side end of the first T-bar 11, etc., and the angle 7, but also to a part of the lower T-joint 27, and the wall-side end of the first T-bar 11, etc., and the angle 7 may be bonded to the lower T-joint 27.

[0046] Figure 10 is a perspective view showing the release paper 32a being peeled off the airtight tape 32. Figure 11 is a perspective view showing the ceiling panel 14 being installed.

[0047] As shown in Figures 10 and 11, the ceiling panel 14 is positioned in the region 15 demarcated by the first T-bar 11 and the second T-bar 12, and the lower surface of the outer edge of the ceiling panel 14 is adhered to the adhesive upper surface 32b of the airtight tape 32 provided on the support upper surface 19 of the first T-bar 11 and the second T-bar 12, with the release paper 32a removed. That is, in the state in which the ceiling panel 14 is attached to the first T-bar 11 and the second T-bar 12 (hereinafter referred to as the "ceiling mounting state"), the airtight tape 32 is positioned between the support upper surface 19 of the first T-bar 11 and the second T-bar 12 and the outer edge of the ceiling panel 14, and the support upper surface 19 of the first T-bar 11 and the second T-bar 12 and the outer edge of the ceiling panel 14 are adhered together by the airtight tape 32. In this embodiment, the airtight tape 32 is placed between the support upper surfaces 19 of the first T-bar 11 and the second T-bar 12 and the outer edge of the entire circumference of the ceiling panel 14.

[0048] When installing the ceiling panel 14, the ceiling panel 14 is placed in the area 15 demarcated by the first T-bar 11 and the second T-bar 12, and placed on the adhesive upper surface 32b of the airtight tape 32 on the support upper surface 19 of the first T-bar 11 and the second T-bar 12. Then, the outer edge of the ceiling panel 14 is pressed from above with a roller or the like to firmly adhere it to the adhesive upper surface 32b of the airtight tape 32.

[0049] The weight of ceiling panel 14 per unit area (1 square meter) is 1.5 kg / m 2 The following settings are applied. Note that the weight per unit area of ​​the ceiling panel 14 is 1.3 kg / m². 2 The following is more preferable:

[0050] In the ceiling structure 1 configured as described above, the main body 22 of the cross joint 13 covers the adjacent portion between the end 12a of the first T-bar 11 and the second T-bar 12 from below when the T-bars are connected. Therefore, even if the ceiling structure 1 is applied to a ceiling installed in a high-temperature and high-humidity environment such as a swimming pool, it is possible to prevent moisture such as water vapor from entering the space above the ceiling from the adjacent portion between the first T-bar 11 and the second T-bar 12 (for example, between the first T-bar 11 and the end 12a of the second T-bar 12). In this way, it is possible to prevent moisture such as water vapor from entering the space above the ceiling, which suppresses condensation inside the ceiling, prevents an increase in the weight of the ceiling panel 14 due to moisture, and prevents the expansion and deformation of the ceiling panel 14 due to moisture, thereby preventing the ceiling panel 14 from falling.

[0051] Furthermore, the cross joint 13 is fixed to both the ends 12a of the first T-bar 11 and the second T-bar 12, restricting relative movement between the ends 12a of the first T-bar 11 and the second T-bar 12. This suppresses deformation of the connecting portion of the grid-like arrangement of the first T-bar 11 and the second T-bar 12, thereby suppressing deformation of the rectangular area 15 partitioned by the first T-bar 11 and the second T-bar 12, and thus preventing the ceiling panel 14 from falling due to such deformation.

[0052] Furthermore, the first stopper portions 23a and 23b of the cross joint 13 restrict the movement of the first T-bar 11 in the Y direction relative to the cross joint 13 when the T-bars are connected. Also, the second stopper portions 24a and 24b of the cross joint 13 restrict the movement of the second T-bar 12 in the Z direction relative to the cross joint 13 when the T-bars are connected. As a result, deformation of the connection portion of the first T-bar 11 and the second T-bar 12, which are assembled in a grid pattern, can be further suppressed, thereby suppressing deformation of the rectangular area 15 partitioned by the first T-bar 11 and the second T-bar 12, and further preventing the ceiling panel 14 from falling due to such deformation.

[0053] Furthermore, the lower surface of the outer edge of the ceiling panel 14 is adhered to the adhesive upper surface 32b of the airtight tape 32 provided on the support upper surface 19 of the first T-bar 11 and the second T-bar 12. As a result, deformation of the connecting portion of the lattice-shaped first T-bar 11 and the second T-bar 12 can also be suppressed by the ceiling panel 14, thereby preventing the ceiling panel 14 from falling.

[0054] Furthermore, the airtight tape 32 is placed between the support upper surfaces 19 of the first T-bar 11 and the second T-bar 12 and the outer edge of the entire circumference of the ceiling panel 14, and adheres them to each other. As a result, the adjacent portions between the support upper surfaces 19 of the first T-bar 11 and the second T-bar 12 and the outer edge of the entire circumference of the ceiling panel 14 can be sealed by the airtight tape 32, thereby preventing moisture such as water vapor from entering the space above the ceiling. In this way, the intrusion of moisture such as water vapor into the space above the ceiling can be prevented, thus preventing the ceiling panel 14 from falling due to the intrusion of water vapor into the space above the ceiling as described above.

[0055] Furthermore, the adjacent portion between the first T-bar 11 and the end 12a of the second T-bar 12 is sealed with a sealing material 26. This prevents moisture such as water vapor from entering the space above the ceiling through the gap between the first T-bar 11 and the end 12a of the second T-bar 12, thereby preventing the ceiling panel 14 from falling due to the intrusion of water vapor or the like into the space above as described above.

[0056] Furthermore, by bonding the ends 12a of the first T-bar 11 and the second T-bar 12 to the lower cross joint 13, the sealing material 26 can also suppress deformation of the connecting parts of the lattice-shaped first T-bar 11 and the second T-bar 12, thereby preventing the ceiling panel 14 from falling.

[0057] Furthermore, the T-joint 27 is fixed to both the wall-side end of the first T-bar 11, etc., and the angle 7, restricting relative movement between the wall-side end of the first T-bar 11, etc., and the angle 7. As a result, deformation of the connection portion between the first T-bar 11 or the second T-bar 12 and the angle 7 can be suppressed, thereby suppressing deformation of the rectangular area demarcated by the first T-bar 11 or the second T-bar 12 and the angle 7, and thus preventing the ceiling panel 14 from falling due to such deformation.

[0058] Furthermore, since the main body 28 of the T-joint 27 covers the adjacent portion between the wall-side end of the first T-bar 11, etc., and the angle 7 from below, it is possible to prevent moisture such as water vapor from entering the space above the ceiling from between the wall-side end of the first T-bar 11, etc., and the angle 7, thereby preventing the ceiling panel 14 from falling due to the intrusion of water vapor, etc., into the space above the ceiling as described above.

[0059] Furthermore, the T-bar side stopper portions 29a and 29b of the T-joint 27 restrict movement of the wall-side end of the first T-bar 11, etc., relative to the T-joint 27 in a direction intersecting the extension direction. Also, the angle-side stopper portions 30a and 30a of the T-joint 27 restrict movement of the cross joint 13 toward the wall surface 6 relative to the angle 7. As a result, deformation of the connection portion between the first T-bar 11 or the second T-bar 12 and the angle 7 can be further suppressed, thereby suppressing deformation of the rectangular area demarcated by the first T-bar 11 or the second T-bar 12 and the angle 7, and further preventing the ceiling panel 14 from falling due to such deformation.

[0060] Furthermore, the adjacent portion between the wall-side end of the first T-bar 11 and the angle 7 is sealed with sealant 26. This prevents moisture such as water vapor from entering the space above the ceiling through the gap between the wall-side end of the first T-bar 11 and the angle 7, thereby preventing the ceiling panel 14 from falling due to the intrusion of water vapor into the space above the ceiling as described above.

[0061] Furthermore, by bonding the wall-side end of the first T-bar 11 and the angle 7 with the lower T-joint 27, the sealing material 26 can also suppress deformation of the connection portion between the first T-bar 11 or the second T-bar 12 and the angle 7, thereby preventing the ceiling panel 14 from falling.

[0062] Furthermore, the weight per unit area of ​​the ceiling panel 14 is set to 1.5 kg / m 2 By doing the following, the ceiling panel 14 can be prevented from falling, at 1.3 kg / m 2 The following measures can further prevent the ceiling panel 14 from falling.

[0063] Thus, according to this embodiment, it is possible to reliably prevent the ceiling panel 14 from falling in a swimming pool or the like.

[0064] In this embodiment, the end 12a of the second T-bar 12 is positioned on both sides of the first T-bar 11 in the Y direction, and the connecting portion (a portion connected in a cross shape) is connected by a cross joint (joint member) 13. However, the shape of the joint member is not limited to a cross shape. For example, in a connecting portion (a portion connected in a T-shape) where the end 12a of the second T-bar 12 is positioned on only one side of the first T-bar 11 in the Y direction, the shape of the joint member may be T-shaped. In this case, the cross joint 13 shown in Figure 6 may be a T-shaped joint member (a joint member located on the other side of the Y direction from the dashed line) without one protruding region 22e of the main body 22 located on one side of the Y direction from the dashed line and a pair of second stopper portions 24a, 24b of the protruding region 22e.

[0065] Furthermore, in this embodiment, the adjacent portion between the end 12a of the first T-bar 11 and the second T-bar 12 is sealed with a sealing material 26, but sealing is not required.

[0066] Furthermore, in this embodiment, an airtight tape 32 is provided as an airtight member between the first T-bar 11 and the second T-bar 12 and the ceiling panel 14, but the airtight member is not limited to this. For example, the airtight member may be a sealant or an adhesive.

[0067] Furthermore, in this embodiment, the airtight tape 32 is placed on the outer edge of the entire circumference of the ceiling panel 14, but it is not limited to this, and may be placed on a part of the outer edge (outer edge) of the entire circumference of the ceiling panel 14.

[0068] Furthermore, in this embodiment, the first T-bar 11 and the second T-bar 12 are bonded to the ceiling panel 14 with airtight tape 32, but this bonding is not required.

[0069] Furthermore, in this embodiment, the cross joint (joint member) 13 is provided with two pairs of first stopper portions 23a, 23b and two pairs of second stopper portions 24a, 24b, but the number of first stopper portions 23a, 23b and second stopper portions 24a, 24b is not limited to this. For example, the joint member may be provided with one pair each of the first stopper portions 23a, 23b and second stopper portions 24a, 24b, or it may be provided with three or more pairs. Alternatively, the joint member may not be provided with the first stopper portions 23a, 23b and second stopper portions 24a, 24b.

[0070] Furthermore, in this embodiment, the cross joint (joint member) 13 is fixed to the first T-bar 11 and the second T-bar 12 by screws 21, but it is not limited to this, and may be fixed by other methods (e.g., welding).

[0071] Furthermore, although the ceiling structure 1 described in this embodiment is applied to a horizontal ceiling structure, it is not limited to this, and may be applied to a ceiling structure that is sloped to be inclined with respect to the horizontal direction, for example, as shown in Figure 12. In this ceiling structure, the extension direction (Y direction) of the support bar 4 and the second T-bar 12 is inclined with respect to the horizontal direction. In this case, the first hanger 3 is formed to follow the inclination of the support bar 4. For example, the first hanger 3 has a main body portion 33 fixed to the suspension bolt 12 and a support portion 34 that is tiltably supported by the main body portion 33 and supports the support bar 4.

[0072] Furthermore, in this embodiment, the ceiling structure 1 according to the disclosure is applied to a suspended ceiling structure that is suspended from a ceiling structural material S, but it is not limited to this, and may also be applied to a direct-attached ceiling in which, for example, the support bar 4 is directly fixed to the ceiling structural material S.

[0073] Although the present invention has been described above based on the above embodiments, the present invention is not limited to the contents of the above embodiments, and can naturally be modified as appropriate without departing from the present invention. In other words, all other embodiments, examples, and operational techniques made by those skilled in the art based on these embodiments are of course included in the scope of the present invention. [Explanation of Symbols]

[0074] S: Ceiling structure material 1: Ceiling structure 5: Second hanger (support member) 5a: Main body (first component) 5b: First connecting plate (second component) 5c: Second connecting plate (second component) 11: First T-bar (first ceiling panel holding member) 12: Second T-bar (second ceiling panel holding member) 12a: End portion (end portion of the second ceiling panel holding member) 13: Cross joint (joint component) 14: Ceiling board 19: Support top part 22: Main body 23a, 23b: A pair of first stopper sections 24a, 24b: A pair of second stopper sections 26: Sealant 32: Airtight tape (airtight material)

Claims

1. A first ceiling panel holding member is positioned below the ceiling structural material and extends in a direction that intersects with the vertical direction, A second ceiling panel holding member having an end positioned adjacent to the first ceiling panel holding member, positioned at approximately the same height as the first ceiling panel holding member, and extending in a direction intersecting the first ceiling panel holding member, A joint member connecting the end of the second ceiling panel holding member and the first ceiling panel holding member, The ceiling panel is positioned in a region partitioned by the first ceiling panel holding member and the second ceiling panel holding member, and is supported from below by the first ceiling panel holding member and the second ceiling panel holding member, The joint member is fixed to both the end of the second ceiling panel holding member and the first ceiling panel holding member, covering the adjacent portion between the end of the second ceiling panel holding member and the first ceiling panel holding member from below, thereby restricting the relative movement between the first ceiling panel holding member and the end of the second ceiling panel holding member. The adjacent portion between the first ceiling panel holding member and the end of the second ceiling panel holding member is sealed with a sealing material. The sealing material adheres the ends of the first ceiling panel holding member and the second ceiling panel holding member to the lower joint member. A ceiling structure characterized by the following features.

2. The joint member has a main body located below the first ceiling panel holding member and the second ceiling panel holding member, at least one pair of first stopper portions extending upward from the main body and located on both sides of the first ceiling panel holding member, and at least one pair of second stopper portions extending upward from the main body and located on both sides of the second ceiling panel holding member. The ceiling structure according to feature 1.

3. Both the first ceiling panel holding member and the second ceiling panel holding member each have a supporting upper surface that supports the outer edge of the ceiling panel from below. An airtight member is placed between the support upper surfaces of the first ceiling panel holding member and the second ceiling panel holding member and the outer edge of the ceiling panel. The ceiling structure according to claim 1 or 2.

4. The airtight member is positioned between the support upper surface of the first ceiling panel holding member and the second ceiling panel holding member and the outer edge of the entire circumference of the ceiling panel. The ceiling structure according to feature 3.

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