JP2023069647A - Ceiling material and ceiling structure having the same - Google Patents

Abstract

To provide a ceiling structure with excellent sound absorption property and excellent workability.SOLUTION: A ceiling material comprises a first plate material 10 with sound absorption property having insertion holes Hac and Had penetrating in a thickness direction or a recess part C opened to one side in the thickness direction and a second plate material 20 with sound absorption property adhered to one surface side of the first plate material 10 and having an insertion hole Hb penetrating in the thickness direction or a recess part opened to one side in the thickness direction.SELECTED DRAWING: Figure 4

Description

The present invention relates to a ceiling material and a ceiling structure including the same.

Ceiling materials such as perforated sheets and perforated plates having sound absorption properties have been widely used in order to suppress reverberation sound in a room.

For example, in Patent Document 1, a plurality of lighting fixtures are provided below a ceiling base material, a light-transmissive ceiling decorative board is provided below the plurality of lighting fixtures, and a sound absorbing board material is provided between the plurality of lighting fixtures. A deployed ceiling structure is disclosed.

Japanese Patent No. 4570715

By the way, in Patent Document 1, it is necessary to dispose the sound absorbing plate material between the ceiling base material and the ceiling decorative material, and it takes time and effort at the time of construction, so there is room for improvement.

The present invention has been made in view of the above points, and an object thereof is to provide a ceiling structure which is excellent in sound absorbing performance and easy to install.

In order to achieve the above object, the ceiling material according to the present invention includes a sound-absorbing first plate member having a through hole penetrating in the thickness direction and/or a recess opening on one side in the thickness direction. , a sound-absorbing second plate that is attached to one surface side of the first plate and has a through hole that penetrates in the thickness direction and/or a recess that opens to one side in the thickness direction. It is characterized by having

According to the above configuration, since the sound-absorbing first plate member is arranged on the indoor side, the sound waves in the room are absorbed by the first plate member. Since the second plate member having a sound absorbing property is attached to one (upper) surface side of the first plate member, the sound waves in the room transmitted through the first plate member are absorbed by the second plate member. Further, since the first plate member and the second plate member are formed with through holes and/or recesses, sound waves in the room transmitted to the ceiling through the through holes and/or recesses are absorbed in the space of the ceiling. be. As a result, excellent sound absorbing performance can be obtained, and for example, since it is not necessary to separately arrange a sound absorbing plate material between the ceiling slab and the ceiling plate, it is possible to provide a ceiling structure with excellent sound absorbing performance and good workability. .

A decorative sheet that is attached to the other surface side of the first plate and has translucency and that transmits sound may be provided.

According to the above configuration, the decorative sheet having translucency and transmitting sound is attached to the other (lower) surface side of the first plate material, so that the surface of the ceiling material on the indoor side looks good. can be improved.

The planar shape of the through holes and/or recesses formed in the first plate material is different from the planar shape of the through holes and/or recesses formed in the second plate material, and the through holes and/or recesses formed in the first plate material have different planar shapes. /Or the recess may be provided so as to overlap with the through hole and/or the recess formed in the second plate member.

According to the above configuration, the planar shape of the through-holes and/or recesses formed in the first plate member differs from the planar shape of the through-holes and/or recesses formed in the second plate member. Since the through holes and/or recesses are provided so as to overlap with the through holes and/or recesses formed in the second plate, the shape of the light from the ceiling that passes through the first plate and the second plate is complicated. As a result, it is possible to express a variety of light in the space under the ceiling.

The decorative sheet may be Japanese paper.

According to the above configuration, since the decorative sheet is Japanese paper, the sound wave in the room can be transmitted and absorbed by the first plate member and the second plate member, and the ceiling can be transmitted through the first plate member and the second plate member. The light from the can be made into a soft light.

Further, the ceiling structure according to the present invention includes a plurality of bar members suspended from a ceiling slab and assembled in a grid pattern, and a plurality of ceiling panels attached to the plurality of bar members and arranged in a matrix. a ceiling structure in which the ceiling panels are arranged between the grids of the plurality of bars, at least one of the plurality of ceiling panels is the ceiling material described above, and the decorative sheet is a lower It is characterized by being provided toward the side.

According to the above configuration, in at least one of the plurality of ceiling panels attached to the plurality of lattice-shaped bar members suspended from the ceiling slab, the first panel member having sound absorption is arranged on the indoor side. Therefore, the sound waves in the room are absorbed by the first plate member. Since the second plate member having a sound absorbing property is attached to one (upper) surface side of the first plate member, the sound waves in the room transmitted through the first plate member are absorbed by the second plate member. Furthermore, since the first plate member and the second plate member are formed with through holes and/or recesses, the sound waves in the room that are transmitted through the through holes and/or recesses to the ceiling space are transmitted between the ceiling slab and the ceiling material. It is absorbed in the space behind the ceiling between. As a result, excellent sound absorbing performance can be obtained, and since there is no need to separately arrange a sound absorbing plate material between the ceiling slab and the ceiling plate, it is possible to provide a ceiling structure with excellent sound absorbing performance and good workability.

A lighting unit may be provided between the plurality of ceiling panels.

According to the above configuration, since the lighting unit is provided between the plurality of ceiling panels, the light emitted from the lighting unit can be directly introduced into the room or the ceiling space between the ceiling slab and the ceiling material. The air can be indirectly introduced into the room through the space of the ceiling material through through holes or recesses formed in the first plate member and the second plate member forming the ceiling material.

According to the present invention, since the ceiling plate itself is configured to absorb sound waves in the room, it is possible to provide a ceiling structure with excellent sound absorption performance and good workability.

It is a top view of the 1st board|plate material which comprises the ceiling material which concerns on the 1st Embodiment of this invention. FIG. 4 is a plan view of a second plate member that constitutes the ceiling material according to the first embodiment of the present invention; It is a top view of the bonded body which comprises the ceiling material which concerns on the 1st Embodiment of this invention. FIG. 4 is a cross-sectional view of the ceiling material provided with the bonded body along line IV-IV in FIG. 3; 1 is a perspective view of a ceiling structure according to a first embodiment of the invention; FIG. FIG. 6 is a sectional view of the ceiling structure taken along line VI-VI in FIG. 5;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In addition, the present invention is not limited to the following embodiments.

<<1st Embodiment>>
1 to 6 show a first embodiment of a ceiling material and a ceiling structure provided with the same according to the present invention. Here, FIGS. 1, 2 and 3 are plan views of the first plate member 10, the second plate member 20 and the bonded body 30 which constitute the ceiling material 50 of the present embodiment. 4 is a cross-sectional view of the ceiling material 50 provided with the bonded body 30 along line IV-IV in FIG. Moreover, FIG. 5 is a perspective view of the ceiling structure 100 of this embodiment. 6 is a cross-sectional view of the ceiling structure 100 along line VI-VI in FIG.

As shown in FIGS. 5 and 6, the ceiling structure 100 includes a plurality of bar members suspended from the ceiling slab 1 and assembled in a grid pattern, and a plurality of bar members attached to the bar members and arranged in a matrix. and a plurality of ceiling members 50 provided as ceiling plates, and each ceiling member 50 is arranged between respective lattices of a plurality of bar members. Between the ceiling slab 1 and the plurality of ceiling materials 50, a plurality of overhead ceiling lights (not shown) are arranged at predetermined intervals. Here, as shown in FIG. 5, linear lighting units 81 are provided on both sides of a plurality of ceiling materials 50 arranged in two rows along the Y direction in the drawing.

As shown in FIG. 5, the plurality of bar members are a plurality of first main T-bars 61, a plurality of second main T-bars 62, and a plurality of second main T-bars 61, which extend parallel to each other in the X direction in the figure. It has three main T-bars 63 and a plurality of cross T-bars 71 extending parallel to each other in the Y direction in the figure. Here, each first main T-bar 61 is provided so as to be adjacent to each second main T-bar 62 and each third main T-bar 63, as shown in FIGS.

The first main T-bar 61 is suspended from the ceiling slab 1, has a substantially inverted T-shaped cross section as shown in FIG. It is provided so as to support the end portion from below.

The second main T-bar 62 is suspended from the ceiling slab 1, has a substantially inverted T-shaped cross section as shown in FIG. It is provided to support the end portion and the end portion along one side of the first plate member 10 from below, and to hold the end portion of the lighting unit 81 from below. In this embodiment, the second main T-bar 62 suspended from the ceiling slab 1 was exemplified. It may simply be attached.

The third main T-bar 63 is suspended from the ceiling slab 1, has a substantially inverted T-shaped cross section as shown in FIG. It is provided to support the end portion and the end portion along one side of the first plate member 10 from below, and to hold the end portion of the lighting unit 81 from below. In this embodiment, the third main T-bar 63 suspended from the ceiling slab 1 was exemplified. It may simply be attached.

The cross T-bar 71 has a substantially inverted T-shaped cross section, and as shown in FIG. and the third main T-bar 63, and provided to support the end along one side of the ceiling material 50 from below. 5 are fixed to a pair of first receiving channels 66 suspended from the ceiling slab 1 and extending in the X direction in FIG. Further, the pair of first receiving channels 66 are fixed to a pair of second receiving channels 76 suspended from the ceiling slab 1 and extending in the Y direction in FIG. In addition, L bars 75 having an L-shaped cross section fixed to the wall surface are provided on the front side and the back side in the X direction in FIG. Support.

The illumination unit 81 is, for example, shaped like a rectangular parallelepiped rod, and includes an LED (light emitting diode) chip as a light source. Here, a plurality of lighting units 81 are arranged in series so that they can be seamlessly connected. Also, the illumination unit 81 is configured to emit light from, for example, five surfaces other than the top surface. 5, the lighting unit 81 is provided between a predetermined pair of adjacent ceiling materials 50 among the plurality of ceiling materials 50. As shown in FIG.

As shown in FIG. 4, the ceiling material 50 includes a first plate member 10 and a bonded body 30 including a second plate member 20 attached to one surface side (upper side in the drawing) of the first plate member 10, and a first A decorative sheet 40 is attached to the other surface side (lower side in the drawing) of the plate member 10 . In addition, in the ceiling structure 100, the decorative sheet 40 of the ceiling material 50 is provided toward the lower side (floor side).

The first plate member 10 is made of, for example, a glass wool plate or a rock wool plate having a length of 630 mm, a width of 584 mm, and a thickness of about 12 mm, and has sound absorption properties. The second plate member 20 is made of, for example, a glass wool plate, a rock wool plate, or the like having a length of 630 mm, a width of 591 mm, and a thickness of about 12 mm, and has sound absorption properties. Here, as shown in FIGS. 1 and 4, the first plate member 10 has through holes Haa, Hab, Hac, Had and Hae penetrating in the thickness direction, and one side in the thickness direction ( A concave portion C that opens upward is formed. In addition, as shown in FIGS. 2 and 4, the second plate member 20 is formed with a through hole Hb penetrating in the thickness direction. Moreover, the peripheral end of the second plate member 20 is provided so as to protrude from the peripheral end of the first plate member 10 (see FIG. 6). In this embodiment, the first plate member 10 has through holes and recesses, and the second plate member 20 has through holes. It is sufficient that holes and/or recesses are formed.

As shown in FIGS. 1 and 2, the through holes Hab and Hb are formed in the shape of a cherry blossom with a radius of about 35 mm to 50 mm in plan view.

As shown in FIG. 1, the through holes Haa, Hac, Had, and Hae are, for example, circular with a diameter of about 35 mm to 50 mm in plan view.

As shown in FIG. 1, the recess C is, for example, circular with a diameter of about 50 mm and a depth of about 6 mm in plan view. Here, five through holes Hac are formed along the periphery of the recess C at the bottom of the recess C at equal intervals. Further, as shown in FIG. 1, five through holes Had are formed in the bottom of the recess C so as to be arranged between a pair of adjacent through holes Hac inside the five through holes Hac. Also, as shown in FIG. 1, five through holes Hae are formed so as to be arranged at the vertices of a regular pentagon.

As shown in FIG. 3, one through hole Hb formed in the second plate member 20 overlaps with the recess C formed in the first plate member 10 in plan view, and is formed at the bottom of the recess C in plan view. It is formed so as to be in contact with one Hac and five Hads. Further, one through hole Hb formed in the second plate member 20 is formed so as to overlap the through hole Haa formed in the first plate member 10 in a plan view at its central portion, as shown in FIG. there is Also, as shown in FIG. 3, one through hole Hb formed in the second plate member 20 is formed so as to overlap with the same shaped through hole Hab formed in the first plate member 10 in plan view. Also, one through-hole Hb formed in the second plate member 20 is formed so that its central portion overlaps five through-holes Hae formed in the first plate member 10 in plan view, as shown in FIG. It is

In this embodiment, the planar shape of the through-holes and/or recesses formed in the first plate member 10 is different from the planar shape of the through-holes and/or recesses formed in the second plate member 20, so that they overlap each other. Although the provided configuration is exemplified, the planar shape of the through holes and/or recesses formed in the first plate member 10 is the same as the planar shape of the through holes and/or recesses formed in the second plate member 20. may be provided so as not to overlap each other.

The decorative sheet 40 is translucent and transmits sound, and is made of, for example, a polyethylene resin sheet, a vinyl chloride resin sheet, a polyurethane resin sheet, a wood veneer, Japanese paper, cloth, etc., having a thickness of 0.5 mm or less. It is made of non-woven fabric, veneer or the like, preferably Japanese paper.

In the ceiling structure 100 including the top plate member 50 configured as described above, the sound waves in the room pass through the decorative sheet 40 and are absorbed by the first plate member 10, and the sound waves in the room that pass through the first plate member 10 are absorbed by the second plate member 20. Then, the sound waves in the room transmitted to the ceiling space through the through holes Haa, Hab, Hac, Had, Hae, and Hb formed in the first plate member 10 and the second plate member 20 and the concave portion C are transmitted to the ceiling slab 1 and the ceiling member 50. It is designed to be absorbed in the space behind the ceiling between. Furthermore, the ceiling structure 100 including the top plate material 50 having the above configuration can directly introduce the light emitted downward from the lighting unit 81 into the room, and the light emitted laterally from the lighting unit 81 and the ceiling space. Light emitted from the lighting passes through the ceiling space between the ceiling slab 1 and the ceiling material 50, and passes through the through holes Haa, Hab, Hac, Had, and Hae formed in the first plate member 10 and the second plate member 20. , Hb, and the recess C, the air is indirectly introduced into the room.

As described above, according to the ceiling material 50 and the ceiling structure 100 including the ceiling material 50 of the present embodiment, the ceiling material 50 attached between the lattices of the plurality of bar materials suspended from the ceiling slab 1: Since the sound-absorbing first plate member 10 having the decorative sheet 40 attached to the lower surface side is arranged inside the room, sound waves in the room pass through the decorative sheet 40 and are absorbed by the first plate member 10.例文帳に追加. Since the second plate member 20 having a sound absorbing property is attached to the upper surface side of the first plate member 10, the sound waves in the room transmitted through the first plate member 10 are absorbed by the second plate member 20. . Further, the through holes Haa, Hab, Hac, Had and Hae and the recess C are formed in the first plate member 10, and the through hole Hb is formed in the second plate member 20, so that the through holes Haa, Hab, Hac, The sound waves in the room transmitted to the ceiling through Had, Hae, Hb, and the recess C are absorbed in the ceiling space between the ceiling slab 1 and the ceiling material 50 . As a result, excellent sound absorbing performance is obtained, and there is no need to dispose a separate sound absorbing plate material between the ceiling slab 1 and the ceiling plate 50, so that the ceiling structure 100 with excellent sound absorbing performance and good workability can be provided. can.

Further, according to the ceiling material 50 and the ceiling structure 100 including the ceiling material 50 of the present embodiment, the decorative sheet 40 having translucency and transmitting sound is attached to the lower surface side of the first plate material 10. Therefore, the through holes Haa, Hab, Hac, Had, and Hae formed in the first plate member 10 are hidden, and the appearance of the interior surface of the ceiling member 50 can be improved.

Further, according to the ceiling material 50 of the present embodiment and the ceiling structure 100 including the same, the lighting unit 81 is provided between the plurality of ceiling boards 50 and between the ceiling slab 1 and the plurality of ceiling materials 50. , the light emitted downward from the lighting unit 81 can be directly introduced into the room, or the light emitted laterally from the lighting unit 81 and the light emitted from the ceiling lamp can be through the ceiling space between the ceiling slab 1 and the ceiling material 50, and through the through holes Haa, Hab, and It can be indirectly introduced into the room through Hac, Had, Hae and Hb and the recess C.

Further, according to the ceiling material 50 of the present embodiment and the ceiling structure 100 including the same, the planar shapes of the through holes Haa, Hac, Had, and Hae formed in the first plate member 10 and the concave portion C are changed to the second plate member 20. Unlike the planar shape of the formed through holes Hb, the through holes Haa, Hac, Had and Hae formed in the first plate member 10 and the recess C are provided so as to overlap the through holes Hb formed in the second plate member 20. Therefore, the shape of the light emitted from the lighting unit 81 in the lateral direction, emitted from the ceiling space, and transmitted through the first plate member 10 and the second plate member 20 via the space in the ceiling space becomes complicated. In the space under the ceiling, it is possible to express a variety of light.

Further, according to the ceiling material 50 and the ceiling structure 100 including the ceiling material 50 of the present embodiment, when the decorative sheet is made of Japanese paper, sound waves in the room are transmitted and absorbed by the first plate member 10 and the second plate member 20. In addition, the light emitted from the lighting unit 81 and transmitted through the first plate member 10 and the second plate member 20 via the ceiling space can be made into soft light.

<<Other embodiments>>
In the above-described embodiment, the ceiling structure in which all of the plurality of ceiling panels arranged in a matrix are made of the ceiling material 50 has been exemplified. It can also be applied to ceiling structures and the like.

INDUSTRIAL APPLICABILITY As described above, the present invention is extremely useful because it can provide a ceiling structure with excellent sound absorption performance and good workability.

C Recesses Haa, Hab, Hac, Had, Hae, Hb Through hole 1 Ceiling slab 10 First board 20 Second board 40 Decorative sheet 50 Ceiling material (ceiling board)
61 1st main T-bar (bar material)
62 Second main T-bar (bar material)
63 3rd main T-bar (bar material)
71 cross T bar (bar material)
81 lighting unit 100 ceiling structure

Claims (6)

a sound-absorbing first plate member having a through hole penetrating in the thickness direction and/or a concave portion opening on one side in the thickness direction;
A sound-absorbing second plate member is attached to one surface side of the first plate member, and has a through hole penetrating in the thickness direction and/or a concave portion opening to one side in the thickness direction. A ceiling material characterized by: In the ceiling material according to claim 1,
A ceiling material characterized by comprising a decorative sheet that is adhered to the other surface side of the first plate material, has translucency, and transmits sound. In the ceiling material according to claim 1 or 2,
The planar shape of the through-holes and/or recesses formed in the first plate material is different from the planar shape of the through-holes and/or recesses formed in the second plate material,
The ceiling material, wherein the through holes and/or recesses formed in the first plate material are provided so as to overlap with the through holes and/or recesses formed in the second plate material. In the ceiling material according to claim 2,
The ceiling material, wherein the decorative sheet is Japanese paper. Multiple bars suspended from the ceiling slab and arranged in a grid pattern,
A ceiling structure comprising a plurality of ceiling boards attached to the plurality of bars and arranged in a matrix, wherein each ceiling board is arranged between lattices of the plurality of bars,
At least one of the plurality of ceiling panels is the ceiling material according to any one of claims 1 to 4,
The ceiling structure, wherein the decorative sheet is provided downward. In the ceiling structure according to claim 5,
The ceiling structure, wherein a lighting unit is provided between the plurality of ceiling panels.

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