Ceiling structure and construction method of ceiling structure

Abstract

To provide a ceiling structure capable of making an indoor space to a space with an impression of openness having continuity to the outdoors.SOLUTION: A ceiling structure 1 includes: a window casing 6 formed on the indoor side of an opening part 4; a ceiling-embedded type curtain box 10 arranged along an upper frame of the widow casing 6, formed in a groove-like shape having a pair of side plates 14 and an upper plate 13, and having a curtain rail 22 fixed on a lower surface of the upper plate 13; a window upper ceiling material 11 adjacent to the curtain box 10, and fixed to a lower part of the window casing 6; and a ceiling decorative material 12 fixed to the opposite side from the window upper ceiling material 11 by sandwiching the curtain box 10. The window upper ceiling material 11 and the ceiling decorative material 12 are formed by the same material, and heights of the lower surfaces are substantially the same.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a ceiling structure having a ceiling-embedded curtain box on the indoor side of an opening and a construction method of the ceiling structure.

Background Art

[0002] Conventionally, in order to avoid the exposure of a curtain rail provided along an opening and suppress a decrease in the design property of the ceiling portion, and also prevent external light from leaking from above the curtain and improve the light shielding property, a structure is known in which a curtain box embedded in a groove shape is formed on the ceiling surface and a curtain rail is housed in the curtain box (see, for example, Patent Document 1 and Patent Document 2).

[0003] In the embedded curtain box as described above, one side edge abuts on the ceiling finishing material, and a protruding member extending in the horizontal direction is fixed to the other side edge, and the protruding member abuts on the upper frame of the sash.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, when a curtain box is provided on the ceiling surface along an opening, there is a problem that the ceiling surface is interrupted on the indoor side of the opening and the indoor space gives an impression of being separated from the outdoors.

[0006] Therefore, an object of the present invention is to provide a ceiling structure capable of making the indoor space an open space having continuity with the outdoors.

Means for Solving the Problems

[0007] The ceiling structure of the present invention includes a window headrail formed on the indoor side of the opening, a ceiling-embedded curtain box that is arranged along the upper frame of the window headrail, is formed in a groove shape having a pair of side plates and an upper plate, and has a curtain rail fixed to the lower surface of the upper plate, a window upper ceiling member that is adjacent to the curtain box and is fixed below the window headrail, and a ceiling decorative member that is fixed on the side opposite to the window upper ceiling member with the curtain box interposed therebetween. The opening is a ceiling-high opening that opens up to the height of the lower surfaces of the window upper ceiling material and the ceiling finishing material. The window upper ceiling member and the ceiling decorative member are formed of the same material and have substantially the same height at the lower surface. The pair of side plates are each formed with flanges of the same width at their lower ends, cutting off the edges of the ceiling finishing material and the edges of the window upper ceiling material respectively. A parting material with an L-shaped cross-section is arranged at the outdoor edge of the window upper ceiling material. The lower end of the parting material is formed at a position lower than the lower end of the frame formed above the opening among the sash frames forming the periphery of the opening. It is characterized by this.

[0008] The ceiling structure of the present invention is characterized in that the pair of side plates and the upper plate are formed of the same material as the window upper ceiling member and the ceiling decorative member.

[0011] The ceiling structure of the present invention is characterized in that the sash frame forming the periphery of the opening is formed in the same color or an approximate color as the window upper ceiling member.

[0012] The ceiling structure of the present invention is characterized in that the height of the eaves ceiling surface formed on the outdoor side of the opening is substantially equal to the lower surfaces of the window upper ceiling member and the ceiling decorative member.

[0013] The construction method of the ceiling structure of the present invention is a construction method of any of the above ceiling structures in which a ceiling base material is arranged above the ceiling decorative member, a window upper and lower base material is arranged above the window upper ceiling member, and a box base material is arranged in a groove shape along the pair of side plates and the upper plate of the curtain box on the ceiling side of the curtain box. The curtain box is fixed to the base material formed on the ceiling side in a state where the pair of side plates, the upper plate, and the box base material are fixed in a groove shape and integrated.

Effect of the Invention

[0014] According to the ceiling structure of the present invention, adjacent to the ceiling-embedded curtain box formed along the upper frame of the window headrail of the opening, a window upper ceiling member is fixed below the window headrail, and a ceiling decorative member is fixed on the side opposite to the window upper ceiling member with the curtain box interposed therebetween. Since the window upper ceiling member and the ceiling decorative member are formed of the same material and have substantially equal heights of the lower surfaces, a person looking up at the ceiling surface from below can feel a continuous impression of the window upper ceiling member and the ceiling decorative member, and the impression of the indoor-outdoor segmentation caused by the curtain box can be alleviated.

[0015] According to the ceiling structure of the present invention, since the pair of side plates and the upper plate constituting the curtain box are formed of the same material as the window upper ceiling member and the ceiling decorative member, the curtain box itself can also have a continuous impression with the window upper ceiling member and the ceiling decorative member, and the impression of the indoor-outdoor segmentation caused by the curtain box can be further alleviated.

[0016] According to the ceiling structure of the present invention, the flanges formed at the lower ends of the pair of side plates are each formed with the same width, and since they each cut off the edge of the ceiling decorative member and the edge of the window upper ceiling member, the ceiling decorative member, the window upper ceiling member, and the curtain box can have a unified and continuous impression.

[0017] According to the ceiling structure of the present invention, since the opening is a ceiling high opening that opens up to the heights of the lower surfaces of the window upper ceiling member and the ceiling decorative member, an impression of being more open towards the outside can be obtained, and an impression that the continuity of the window upper ceiling member and the ceiling decorative member continues outdoors can be obtained.

[0018] According to the ceiling structure of the present invention, since the sash frame has the same color or an approximate color as the window upper ceiling member, the indoor-outdoor continuity can be further enhanced, and an impression of being more open towards the outside can be obtained.

[0019] According to the ceiling structure of the present invention, since the height of the eaves ceiling surface formed on the outdoor side of the opening is substantially equal to the lower surfaces of the window upper ceiling member and the ceiling decorative member, the eaves ceiling surface has an impression of being continuous with the indoor ceiling surface, and an impression of being more open towards the outside can be obtained.

[0020] According to the construction method of the ceiling structure of the present invention, the curtain box is fixed to the base material formed in the ceiling recess in a state where a pair of side plates, an upper plate, and the box base material are fixed in a groove shape to be integrated, so that the workability can be improved.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0022] Hereinafter, embodiments of the ceiling structure 1 and the construction method of the ceiling structure according to the present invention will be described with reference to the respective drawings. The ceiling structure 1 is, for example, a ceiling structure that forms a ceiling surface of a house. Note that the building in which the ceiling structure 1 is used is not limited to a house, and can be used as the ceiling structure 1 of various buildings such as public buildings and hotels. The ceiling structure 1 in this embodiment is a ceiling structure of a space in which an opening 4 that opens up to the height of the ceiling surface is formed, and an eaves is formed outside the opening 4. The ceiling structure 1 gives an impression of continuity from the indoor ceiling surface 2 to the eaves ceiling surface 3.

[0023] As shown in FIG. 1, the ceiling structure 1 includes a sash frame 5 that forms the periphery of the opening 4, a window headrail 6 formed on the indoor side of the opening 4, a window upper and lower base material 7 fixed to the lower surface of the upper frame of the window headrail 6, a box base material 8 formed continuously from the window upper and lower base material 7 to the indoor side and formed in a groove shape along the opening 4, a ceiling base material 9 formed continuously from the box base material 8, a curtain box 10 arranged on the indoor side along the window headrail 6 and fixed to the box base material 8, a window upper ceiling material 11 adjacent to the curtain box 10 and fixed below the window headrail 6, and a ceiling decorative material 12 fixed to the ceiling base material 9 and fixed on the opposite side of the window upper ceiling material 11 with the curtain box 10 in between. The ceiling structure 1 further has an eaves formed on the outdoor side of the opening 4, and the lower surface of the eaves serves as the eaves ceiling surface 3.

[0024] As shown in FIGS. 1 and 2, the opening 4 is a sliding window with the entire surface from the floor surface to the ceiling surface 2 open. Since the opening 4 is fully open, the indoor space can be made into a space with a sense of openness. The sash frame 5 is, for example, an aluminum sash in which a shoji (not shown) arranged inside can slide. The sash frame 5 is painted in the same color or an approximate color as the window upper ceiling material 11 described later. Here, the approximate color means, for example, those having a color difference within 10 as defined in JIS Z 8730.

[0025] The window head molding 6 is a wooden rectangular frame arranged on the indoor side of the sash frame 5. The window upper and lower base materials 7 are gypsum boards fixed to the lower surface of the upper member of the window head molding 6. Also, the box base material 8 is a gypsum board material formed in a groove shape, fixed to a wooden base material 15 arranged in the ceiling cavity so as to be the base of the upper plate 13 and the pair of side plates 14 forming the curtain box 10. The box base material 8 is formed by combining a pair of side surface lower floor boards 16 forming both side surfaces and an upper surface lower floor board 17 forming the groove bottom surface. The ceiling base material 9 is a gypsum board fixed to a steel wild edge 18 formed in the ceiling cavity. The steel wild edge 18 is fixed to a wild edge receiver 21 locked to the lower end of a ceiling suspension fitting 20 suspended from the flange of an H-shaped steel beam 19. The window upper and lower base materials 7, the box base material 8, and the ceiling base material 9 are continuously arranged in the ceiling cavity, ensuring the fire resistance and sound insulation of the ceiling surface 2.

[0026] The curtain box 10 is a wooden decorative material attached to the box base material 8 made of gypsum board, and is formed in a groove shape by a pair of side plates 14 and an upper plate 13. Note that end plates (not shown) formed of the same wooden decorative material are also formed at both ends in the length direction of the curtain box 10. Two curtain rails 22 are fixed to the upper plate 13 of the curtain box 10. Although not shown, by locking a curtain hook provided at the upper end of the curtain to the curtain rail 22, the curtain is arranged on the indoor side of the opening 4.

[0027] The window upper ceiling material 11 is a wooden decorative material fixed to the window upper and lower base materials 7 fixed to the window head molding 6 via a plate wild edge 28. The window upper ceiling material 11 is formed of the same material as the pair of side plates 14 and the upper plate 13 of the curtain box 10, and the indoor side edge is hidden and arranged in a flange 24 formed at the lower end of one of the side plates 14. Also, a parting material 23 having an L-shaped cross section is arranged at the outdoor side edge of the window upper ceiling material 11.

[0028] The ceiling finishing material 12 is a wooden finishing material fixed to the ceiling base material 9 via the plate edge 28. The ceiling finishing material 12 is formed of the same material as the window upper ceiling material 11, the pair of side plates 14, and the upper plate 13, and abuts against the other side plate 14 so that the edge is hidden in the flange 24 formed at the lower end of the other side plate 14. The flange 24 formed at the lower end of one side plate 14 and cutting off the edge of the ceiling finishing material 12 and the flange 24 formed at the lower end of the other side plate 14 and cutting off the edge of the window upper ceiling material 11 are formed with the same width, and since they cut off the edge of the ceiling finishing material 12 and the edge of the window upper ceiling material 11 respectively, the ceiling finishing material 12, the window upper ceiling material 11, and the curtain box 10 can be given a unified and continuous impression.

[0029] Also, the lower surfaces of the ceiling finishing material 12 and the window upper ceiling material 11 are formed at substantially the same height. In this way, since the ceiling finishing material 12, the window upper ceiling material 11, the pair of side plates 14 constituting the curtain box 10, and the upper plate 13 are formed of the same material, it is possible to suppress the impression that the ceiling surface 2 is divided by the curtain box 10, and an impression can be given that it is a continuous and integral ceiling surface 2 from the ceiling finishing material 12 to the window upper ceiling material 11. In particular, since the lower surface of the ceiling finishing material 12 and the lower surface of the window upper ceiling material 11 are formed at substantially the same height, it will be recognized as an even more integral ceiling surface 2, and the impression that the inside and outside are divided can be suppressed.

[0030] Note that the fact that the ceiling finishing material 12, the window upper ceiling material 11, the pair of side plates 14 constituting the curtain box 10, and the upper plate 13 are formed of the same material means that, for example, they are formed of materials processed in the same color and texture with the same type of wood, so that a person looking up at the ceiling surface can recognize that they are of the same material. Also, the ceiling finishing material 12, the window upper ceiling material 11, the pair of side plates 14 constituting the curtain box 10, and the upper plate 13 are not limited to being made of wood, and for example, they may be formed by wrapping a cloth of the same color and pattern around a facing material such as gypsum board.

[0031] On the outdoor side above the opening 4, a cantilever 25 supported by a beam 19 extends and is formed. A purlin is installed between a plurality of cantilevers 25 and supports the eaves, not shown in the figure. A soffit support 21 is formed on the lower surface of the cantilever 25, and a soffit edge 26 extending in the outdoor direction is fixed via the soffit support 21. A soffit material 27 is attached to the lower surface of the soffit edge 26, and the lower surface of the soffit material 27 forms the soffit ceiling surface 3. The soffit material 27 is a wooden decorative material for outdoor use. The material of the soffit material 27 is preferably formed of a material having a color and pattern similar to those of the window head ceiling material 11, a pair of side plates 14, an upper plate 13, and the ceiling decorative material 12 formed indoors. With this configuration, it gives the impression that the soffit material 27 is integrally formed continuously with the ceiling decorative material 12, the curtain box 10, and the window head ceiling material 11, and the unity between the indoors and outdoors can be enhanced. Also, the height of the soffit ceiling surface 3, which is the lower surface of the soffit material 27, is preferably substantially equal to the lower surfaces of the window head ceiling material 11 and the ceiling decorative material 12. If the heights of the window head ceiling material 11 and the ceiling decorative material 12 are substantially equal to that of the soffit ceiling surface 3, the unity between the indoors and outdoors can be further enhanced. Note that "substantially equal" means that the height of the soffit ceiling surface 3 and the lower surfaces of the window head ceiling material 11 and the ceiling decorative material 12 are close enough that a person looking up from below can recognize that the indoor ceiling surface 2 and the soffit ceiling surface 3 are almost flush.

[0032] The construction method of the ceiling structure 1 configured as described above in this embodiment is as follows. First, as shown in FIG. 3, a ceiling base material 9 made of gypsum board is attached to the steel soffit 18, and a window base material 7 is attached to the lower side of the upper frame of the window head 6. Then, an upper floor board 17 and a pair of side floor boards 16 of the box base material 8 are attached to the wooden base material 15 arranged in the ceiling cavity to form a fire-resistant ceiling floor surface. Then, plate soffits 28 are fixed at a predetermined pitch to the lower surfaces of the ceiling base material 9 and the window head ceiling material 11, and as shown in FIG. 4, the ceiling decorative material 12 and the window head ceiling material 11 are attached to the plate soffits 28. After that, the curtain box 10 is formed by sequentially fixing one side plate 14, the upper plate 13, and the other side plate 14 to the box base material 8 in that order. Also, on the outdoor side, the soffit material 27 is attached to the soffit edge 26 to form the soffit ceiling surface 3, completing the ceiling structure 1.

[0033] Also, for the construction method of the ceiling structure of another embodiment, first, as shown in FIG. 5, attach a ceiling base material 9 made of gypsum board to the steel wild edge 18, and attach a window upper and lower base material 7 to the lower side of the upper frame of the window lintel 6. Then, with a pair of side plates 14, an upper plate 13, and a box base material 8 fixed in a groove shape and integrated, fix them to the wooden base material 15 formed in the ceiling recess to form a curtain box 10. After that, as shown in FIG. 6, fix the board wild edge 28 at a predetermined pitch to the lower surfaces of the ceiling base material 9 and the upper window ceiling material 11, and attach the ceiling decorative material 12 and the upper window ceiling material 11 to the board wild edge 28 to form the ceiling surface 2, and fix the curtain rail 22 to the upper plate 13 of the curtain box 10. And on the outdoor side, attach the soffit back surface material 27 to the soffit back wild edge 26 to form the soffit ceiling surface 3, and complete the ceiling structure 1.

[0034] According to the construction method of the ceiling structure of another embodiment as described above, since a pair of side plates 14, an upper plate 13, and a box base material 8 are fixed to the wooden base material 15 in a state of being integrated in a groove shape to form the curtain box 10, the construction of the ceiling structure 1 having the curtain box 10 can be easily performed.

[0035] It goes without saying that the embodiments of the present invention are not limited to the above-described embodiments, and can be appropriately changed without departing from the scope of the idea of the present invention.

Industrial Applicability

[0036] The ceiling structure 1 and the construction method of the ceiling structure according to the present invention are suitable for a building that gives an integrated impression of the inside and outside.

Explanation of Reference Numerals

[0037] 1 Ceiling structure 3 Soffit ceiling surface 4 Opening 5 Sash frame 6 Window lintel 7 Window upper and lower base material 8 Box base material 9 Ceiling base material 10 Curtain box 11 Ceiling material above window 12 Ceiling finishing material 24 Flange 27 Outer wall material of eaves

Claims

1. A window head molding formed on the indoor side of the opening, A ceiling-embedded curtain box that is arranged along the upper frame of the window head molding, formed in a groove shape having a pair of side plates and an upper plate, and a curtain rail is fixed to the lower surface of the upper plate; A window upper ceiling member that is adjacent to the curtain box and fixed below the window head molding; A ceiling decorative material fixed on the opposite side of the window upper ceiling member with the curtain box interposed therebetween, comprising: The opening is a ceiling-high opening that opens up to the height of the lower surfaces of the window upper ceiling member and the ceiling decorative material; The window upper ceiling member and the ceiling decorative material are formed of the same material and have substantially equal lower surface heights; The pair of side plates are each formed with a flange of the same width at the lower end, cutting off the edge of the ceiling decorative material and the edge of the window upper ceiling member respectively; A parting material having an L-shaped cross section is arranged at the outdoor edge of the window upper ceiling member; The lower end of the parting material is formed at a position lower than the lower end of the frame formed on the upper side of the opening among the sash frames forming the periphery of the opening, characterized in that it is a ceiling structure.

2. The ceiling structure according to claim 1, characterized in that the pair of side plates and the upper plate are formed of the same material as the window upper ceiling member and the ceiling decorative material.

3. The ceiling structure according to claim 1 or claim 2, characterized in that the sash frame forming the periphery of the opening is formed in the same color or an approximate color as the window upper ceiling member.

4. The ceiling structure according to any one of claims 1 to 3, characterized in that the height of the eaves ceiling surface formed on the outdoor side of the opening is substantially equal to the lower surfaces of the window upper ceiling member and the ceiling decorative material.

5. A ceiling substrate material is arranged above the ceiling decorative material, a window upper and lower substrate material is arranged above the window upper ceiling member, and a box substrate material is arranged in a groove shape along the pair of side plates and the upper plate of the curtain box on the ceiling side of the curtain box. A construction method of the ceiling structure according to any one of claims 1 to 4, The curtain box is fixed to the substrate material formed on the ceiling side in a state where the pair of side plates, the upper plate, and the box substrate material are fixed in a groove shape and integrated, characterized in that it is a construction method of a ceiling structure.

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