JP6746144B1 - Suspended ceiling mounting structure and construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the appearance when a suspended ceiling is looked up from a room and to easily perform construction by a simple work. SOLUTION: The support member includes a runner having a substantially U-shaped cross section, which is suspended below a structural body, and is assembled in a lattice shape, and a ceiling material having projecting surface portions formed in four side portions. The projecting surface portion of the ceiling material is bent downward, and the downwardly bent portion is inserted into the recess of the runner and mounted on the support member. [Selection diagram] Figure 1

Description

The present invention relates to a suspended ceiling mounting structure in which a support member is suspended below a structural body, and a ceiling material that is a ceiling surface constituting member is supported by this support member to form an indoor ceiling surface.

The use of lightweight ceiling materials made of organic fibers and inorganic fibers has become widespread in order to prevent the damage caused by the falling of the ceiling materials in the event of an earthquake.
FIG. 25 shows an installation mode of a suspended ceiling using such a ceiling material. As shown in the figure, the ceiling material 100 has its peripheral side portion 100a on a horizontal projecting surface 102a of a ceiling rail 102 that is suspended below a structural body (not shown) via a hanger 101. While being placed, the edge portion 100b is folded on the vertical surface 102b of the ceiling rail 102, and is integrally fastened with a screw 103 to be fixed between the ceiling rails 102 and 102 (for example, refer to Patent Document 1).

JP, 2016-196762, A

In the illustrated conventional installation mode, the ceiling material 100 is designed to be supported by mounting the side portions thereof on the horizontal projecting surfaces 102a protruding to both sides of the lower end portion of the ceiling rail 102. When the surface is looked up from the room, the width of the horizontal overhanging surface 102a of the ceiling rail 102 is noticeable, and since the level difference between the horizontal overhanging surface 102a and the ceiling material 100 is small, the contour is not clear. It was something that looked like a flat ceiling with no space.
Further, there is a problem in that it is difficult to fasten the edge portion 100b of the ceiling material 100 to the ceiling rail 102 with the screw 103, which requires time and effort for the construction.

In view of such problems of the prior art, the present invention provides a ceiling material for a suspended ceiling and a supporting material that supports the ceiling material as an appearance that gives a sharp, deep, and clean impression, and is used to remove a ceiling from a room. It is an object to improve the appearance when looking up and to be able to perform construction by simple work.

In order to solve the above-mentioned problems, a mounting structure for a suspended ceiling according to the present invention includes a support member, which is suspended below a structural body, and has runners having a substantially U-shaped cross section assembled in a grid pattern, and a support member downwardly on a side portion. A ceiling material provided with a bent projecting surface portion,
The projecting surface of the ceiling material is inserted into the recess of the runner, and the ceiling material is mounted on the support member.

According to this, it is possible to attach the ceiling material by a simple operation in which the runners are assembled in a grid pattern to form the support member, and the projecting surface portion bent below the side portion of the ceiling material is inserted into the runner. Also, the runner can be narrow in width, and the ceiling material can be attached on the support member to finish the ceiling surface with a sense of depth and a good-looking appearance. Is.

In the mounting structure of the suspended ceiling having the above-mentioned structure, a ceiling material having a pair of cuts extending inwardly from the edge is provided in a side portion, and a portion between the pair of cuts of the ceiling material is used. Can be configured to be inserted into the recess of the runner and attached.

In addition, in the mounting structure of the suspended ceiling having the above-described configuration, it is possible to provide projecting surface portions on each of the four side portions of the ceiling material and attach the projecting surface portions to the lattice partition portions of the support member.
At least two opposing sides of the four sides of the ceiling material, or adjacent two side edges are provided with projecting surface portions, and these projecting surface portions are inserted into the recesses of the runner so that the ceiling material is mounted on the support member. Good.

As the ceiling material, a material having a unit area mass of 2.0 kg or less can be used.
An example of such a structure is a composite fiber structure in which a non-combustible sheet is laminated on at least one surface or inside of a fiber structure containing a main fiber and a binder fiber, and the product name is “Karuten” ( A registered trademark: Teijin Frontier Co., Ltd.) is preferably used as a fiber-based noncombustible ceiling material. A ceiling material formed of other non-combustible material such as glass fiber may be used.

Further, in the mounting structure of the suspended ceiling having the above structure, the supporting member is attached to the hanger coupler fixed to the lower end of the suspending material hanging from the structural body, and the ceiling material is pressed downward between the hanger coupler and the supporting member. It may be configured such that a fixing means for urging is provided.

The fixing means includes a pad that is in contact with the surface of the ceiling material, and a linear spring that extends in an arch shape between both ends of the pad, or a large-diameter ceiling material support portion is provided at the lower end portion. A coil spring can be used.

Further, between the ceiling material having the projecting surface portion inserted into the recess of the runner and the fixing means, a pressing member for pressing the mounting portion of the ceiling material with the runner from above along the runner may be attached.

In addition, the method for constructing a suspended ceiling of the present invention is such that a hanger coupler is attached to each of a plurality of suspension members that hang down from a structural body, and a runner having a substantially U-shaped cross section is spanned vertically and horizontally between the attached hanger couplers. And a step of forming a support member,
A ceiling material having a rectangular shape in plan view, which is provided with protruding surface portions that are bent downward in the four sides, is covered from above on each grid partition portion of the support member, and the protruding surface portions of each side portion are recessed in the runner. A step of inserting and engaging the inside of the ceiling material, and stacking the peripheral portion of the ceiling material on the recesses of the runner and attaching it to each lattice partition portion,
Attaching a fixing means to a portion where the runners of the supporting member intersect with each other in a cross shape, and fixing a corner portion of the ceiling material with the fixing means;
It is characterized in that a suspended ceiling is attached to the lower side of the structural body through each of the processing steps.

According to the mounting structure for a suspended ceiling of the present invention, a runner having a substantially U-shaped cross section is assembled in a grid pattern below the structural body to form a support member, and a portion bent downward below a side portion of the ceiling material is the runner. It is possible to attach the ceiling material by a simple operation of inserting it into the. The attached suspended ceiling can be finished to have a good-looking appearance with a sense of depth, in which irregularities are exposed on the surface.

It is sectional drawing which showed schematic structure of one Embodiment of the suspended ceiling by this invention. It is an external view of a hanger coupler which is one of the members which comprise the support member of FIG. It is a figure for demonstrating the process of assembling a runner in a grid|lattice form and comprising a supporting member. It is an external view of the ceiling material of FIG. FIG. 5 is an external view of a state in which an edge portion is bent downward along a cut provided on four sides of the ceiling material of FIG. 4. (A) is a figure for demonstrating the operation which attaches the ceiling material of FIG. 5 to the runner of a support member, (B) is sectional drawing which showed the state which attached the ceiling material of both sides of a runner. It is an external view of the fixing means installed in the crossing part of the runner in the cross shape of a support member. It is an external view of the fixing means installed in the edge part of a support member. It is a figure for demonstrating the process of suspending a support member below the structural body. It is a figure for demonstrating the process of attaching a ceiling material to a support member. FIG. 8 is an external view of the state in which the fixing means of FIG. 7 is installed. It is a figure for demonstrating the process of installing the fixing means of FIG. FIG. 9 is a schematic configuration diagram of a main part in a state where the fixing means of FIG. 8 is installed at an edge portion of a support member to which a ceiling material is attached. FIG. 9 is a schematic configuration diagram of a main part in a state where the fixing means of FIG. 8 is installed at a corner portion of a support member to which a ceiling material is attached. FIG. 7 is a schematic configuration diagram of a main part of another embodiment of the suspended ceiling of the present invention, in which a fixing means is installed at a portion where a runner crosses a cross shape of a support member to which a ceiling material is attached. It is a schematic structure sectional drawing of FIG. It is a main part fracture|rupture schematic block diagram in the state which installed the fixing means in the edge part of the support member to which the ceiling material was attached in other embodiment. It is a schematic structure sectional drawing of FIG. It is an external view of the ceiling material in other embodiment. FIG. 20 is an enlarged external view of an essential part of the ceiling material of FIG. 19 with the projecting surface portion bent downward. It is sectional drawing which showed the state which attached the ceiling material of FIG. 19 to both sides of the runner. 17A is an external view of a main part of the pressing member shown in FIGS. 15 and 16, and FIG. FIG. 23 is a schematic configuration cross-sectional view showing another form of a ceiling member mounting structure using the pressing member shown in FIG. 22(B). (A) is a diagram showing a mode in which a plurality of projecting surface portions are provided on a side portion of the ceiling material, and (B) is a view showing a mode in which another member is attached to the ceiling material to form the projecting surface portion. It is sectional drawing which showed schematic structure of an example of the conventional suspended ceiling.

A preferred embodiment of the present invention will be described with reference to the drawings. The technical idea of the present invention is not limited to the embodiments described below.

1 to 18 show the structure of a suspended ceiling according to an embodiment of the present invention.
As shown in FIG. 1, the suspended ceiling 1 includes a support member 2 suspended below a structural body (not shown) via a hanger coupler 3, and a ceiling member 4 mounted on the support member 2. The fixing means 5 and 6 installed between the hanger coupler 3 and the support member 2 for fixing the ceiling member 4 to the mounting position are mainly constituted.

The support member 2 is formed by assembling a plurality of steel runners 21 each having a substantially U-shaped cross section in a grid shape via the hanger coupler 3.

More specifically, the hanger coupler 3 is formed by bending a steel plate, and as shown in FIG. 2, a bent piece portion having a hole portion 32a into which the lower end portion of the hanging material 7 is inserted, on an upper portion of the main surface portion 31 thereof. 32, a folding surface portion 33, which is folded back into a substantially U shape so as to be inserted into the runner 21, is formed below the main surface portion 31. The main surface portion 31 and the folded surface portion 33 are formed with slits 31a and 33a with which a slit 21a formed at the end of the runner 21 described later engages, and holes 31b and 33b into which fasteners such as screws are inserted. is there. The hanger coupler 3 is fixed to the hanging member 7 by passing the lower end of the hanging member 7 hanging from the structural body through the hole 32a of the bending piece 32 and tightening the upper and lower surfaces of the bending member 32 with nuts.

The runner 21 is composed of two types of runners, a runner having a length substantially the same as the arrangement interval of the hanging members 7 and a runner having a length longer than that, and as shown in FIG. Slits 21a and holes 21b formed on both side surfaces of the runner 21 are inserted into the lower part of the hanger coupler 3 fixed to the material 7, and slits 31a formed on the main surface portion 31 and the folded surface portion 33 of the hanger coupler 3 are formed. , 33a and holes 31b, 33b are aligned with each other, and fasteners (not shown) such as rivets are fixed to the holes 21b and 31b and the holes 21b and 33b to fix them integrally. Then, the short runners 21 and 21 are applied from both sides of the fixed long runner 21, and the slits 21a formed at the ends thereof are aligned with the slits 21a and the slits 31a and the slits 21a and the slits 33a. By inserting and engaging from above, the support member 2 in which the runners 21 are assembled in a lattice shape can be configured.

In this embodiment, the ceiling material 4 is made of a lightweight decorative material having an organic fiber or an inorganic fiber as a main material and a unit area mass of 2.0 kg or less, and is partitioned by the runners 21 in the vertical and horizontal directions of the support member 2. It is formed in a square shape in plan view with a dimension in which the length and width are slightly larger than that of one lattice partition.

Specifically, as shown in FIG. 4, the ceiling member 4 is formed with a pair of cuts 41, 41 extending inwardly from the edges at appropriate intervals at the central portions of the four side portions thereof. The portion between the two cuts 41, 41 is a projecting surface portion 4a that projects further outward than the peripheral portion 4b.

Then, as shown in FIG. 5, the ceiling member 4 is covered on the lattice partition portion of the support member 2 in a state where the projecting surface portion 4a partitioned by the cuts 41, 41 on the four side portions is vertically bent downward. As shown in FIG. 6(A), the ceiling material 4 is mounted on the support member 2 by inserting and engaging the projecting surface portions 4a of the respective side portions that are folded downward into the concave portions of the peripheral runner 21. It is designed to be used.
Further, at this time, the peripheral portion 4b of the ceiling material 4 overlaps the concave portion of the runner 21, and as shown in FIG. 6(B), the ceiling material 4 attached to the adjacent grid partition portions with the runner 21 interposed therebetween. The peripheral portions 4b and 4b of 4 and 4 overlap with the concave portion of the runner 21 so that a high light shielding effect can be obtained. Further, as shown in the figure, on the concave portion of the runner 21, the peripheral portions 4b, 4b of the adjacent ceiling members 4, 4 are in contact with each other so as to be flush with each other, or arranged so as to be close to each other until there is almost no gap. By doing so, it is possible to prevent the mounted ceiling material 4 from laterally shifting and hold it at the original mounting position.

As shown in FIG. 7, the fixing means 5 is formed by bridging a linear spring 52 between opposing ends of a pad 51 made of synthetic resin, and the runners 21 of the support member 2 cross each other in a cross shape. It is installed in the part where

Specifically, the pad 51 is a plate material having a circular shape or an elliptical shape in a plan view, and a slit 51a extending inward from the edge portion through the center of the pad is provided at its side end portion, and the entire upper surface thereof is provided. Has a large number of recesses 51b arranged in rows and columns so as to be lightweight.
The linear spring 52 is a spring formed by curving a linear steel material having an appropriate thickness in an arch shape, and has both ends 52a, 52a formed in a hole formed at an end portion on the opposite side of the pad 51 (see FIG. It is inserted into and engaged with a pad (not shown), and is laid between both end portions of the pad 51. The arch-shaped central portion of the linear spring 52 is gently curved in an arc shape in the direction opposite to the locus of the arch-shaped curve. The linear spring 52 is rotatable about both ends 52a, 52a inserted into the holes of the pad 51, and is tilted to the side of the pad 51 when not in use as shown in FIG. It can be stored without being bulky and can be erected above the surface of the pad 51 during use. Further, the linear spring 52 is erected above the back surface of the pad 51 and utilized, so that both the front and back surfaces of the pad 51 can be used as pressing portions described later.

As shown in FIGS. 11 and 12, the fixing means 5 is a portion where the runners 21 of the support member 2 cross each other in a cross shape, and the main surface portion 31 of the hanger coupler 3 is engaged with the slit 51a of the pad 51. A linear spring erected above the pad 51 in a state where the pad 51 is placed on the surface of each corner portion of the four ceiling members 4 around the intersecting portion mounted on the support member 2. It is installed by engaging the lower surface of the bent piece portion 32 of the hanger coupler 3 while elastically deforming 52, and in this installed state, the pad 51 is pressed downward by the elastic force of the linear spring 52 and the pad 51 overlaps. Further, a pressing force is applied to the corners of the ceiling members 4 from the pads 51, and the corners of the ceiling members 4 sandwiched between the pad 51 and the support member 2 are elastically biased downward to attach the ceiling members 4 to each other. It can be fixed to.

The fixing means 6 is a coil spring as shown in FIG. 8, and is installed at an edge portion of the support member 2, that is, a portion where the runners 21 cross each other in a T shape or an L shape.

Specifically, the coil spring of the fixing means 6 is formed so that the coil inner diameter can be set to a size slightly larger than the outer diameter of the suspending member 7 and can be mounted on the outer periphery of the suspending member 7. A ceiling material support portion 61 that is curved with a diameter larger than the inner diameter of the coil is provided at the lower end portion, and a downward bent portion 62 is provided at the end portion of the ceiling material support portion 61.

As shown in FIGS. 13 and 14, the fixing means 6 is attached to the outer periphery of the hanging member 7 protruding below the bent piece portion 32 of the hanger coupler 3 at the edge portion of the support member 2 and the upper end portion thereof. While engaging the lower part of the bent piece part 32 and compressing the whole in the axial direction, the ceiling material support part 61 at the lower end thereof is superposed on the surface of the corner part of the ceiling material 4 attached to the support member 2. It will be installed. The lower bent portion 62 at the end of the ceiling material support portion 61 is inserted into the space between the main surface portion 31 and the folded surface portion 33 of the hanger coupler 3. In this installed state, an elastic force in the axially extending direction acts on the coil spring that is the fixing means 6 to press the corner portion of the ceiling material 4 where the ceiling material support portion 61 overlaps downward, The ceiling material 4 can be fixed to the mounting position.

The suspended ceiling 1 of this embodiment composed of these members can be constructed, for example, by the following procedure.

First, the hanger coupler 3 is fixed to each suspending member 7 hanging from the structural body, and as shown in FIG. 9, the runners 21 are spanned vertically and horizontally between the fixed hanger couplers 3 and assembled in a lattice shape to support members. Form 2.

Then, as shown in FIG. 10, from above, to each lattice partition portion of the support member 2, the projecting surface portion 4a partitioned by each of the cuts 41, 41 of the four side portions shown in FIG. The vertically bent ceiling material 4 is covered, and the projecting surface portions 4a of each side portion folded downward are inserted into the recesses of the runner 21 to be engaged with each other, and the peripheral portion 4b of the ceiling material 4 is superposed on the recesses of the runner 21. The ceiling material 4 is attached to each grid partition.

After mounting the ceiling material 4 on the support member 2, as shown in FIG. 11, the fixing means 5 is attached to the portion where the runners 21 of the support member 2 cross each other in a cross shape to fix the ceiling material 4.
As shown in FIG. 12, the fixing means 5 is attached to the main surface portion 31 of the hanger coupler 3 at the tip of the slit 51a formed in the pad 51 with the linear spring 52 standing up above the pad 51. It can be carried out by engaging it, sliding the pad 51 in the arrow direction in the figure as it is, and press-fitting the linear spring 52 to the lower side of the bent piece portion 32 of the hanger coupler 3 while elastically deforming it.

Then, after the fixing means 5 is attached, or in parallel with the attachment of the fixing means 5, a portion where the runners 21 of the support member 2 intersect with each other in a T shape shown in FIG. 13, and FIG. The construction of the suspended ceiling 1 is completed by attaching a coil spring as the fixing means 6 to the portion where the runners 21 of the support member 2 intersect with each other in an L shape and fixing the ceiling material 4.

15 to 22 show the structure of a suspended ceiling according to another embodiment of the present invention.
The suspended ceiling 1 of the illustrated form is provided with a pair of inwardly extending cuts 41, 41 shown in FIG. 4 at the four side portions, and outside the portion between the two cuts 41, 41. Instead of the ceiling member 4 formed so that the projecting surface portion 4a projecting toward one side is bent downward along the cuts 41, 41, the projecting surface portion 4a projecting outward at the four side portions shown in FIG. 19 is shown. And the ceiling member 4 is formed so that the projecting surface portion 4a can be bent downward. Further, the peripheral portion 4b of the ceiling material 4 which covers each lattice partition portion of the support member 2 in which the projecting surface portion 4a bent downward is inserted into the concave portion of the runner 21, is attached along the concave portion of the runner 21. The ceiling material 4 is configured to be mounted on the support member 2 by pressing downward with the materials 8 and 9.

More specifically, the ceiling material 4 of the present embodiment is also made of a lightweight decorative material having a unit area mass of 2.0 kg or less, mainly made of organic fibers and inorganic fibers, as shown in FIG. The vertical and horizontal lengths of the support member 2 are formed in a square shape in plan view with a dimension that is slightly larger than one lattice partition portion partitioned by the vertical and horizontal runners 21, and the central portion of the four side portions thereof. And a projecting surface portion 4a projecting outward with an appropriate width and length. Then, each projecting surface portion 4a is provided with a dotted line cut along the upper surface root portion, and is formed so as to be vertically bendable downward as shown in FIG.

Similar to the above-described embodiment, the ceiling member 4 covers the lattice partition portion of the support member 2 in a state where the projecting surface portion 4a is vertically bent downward, and the projecting surface portions 4a of each side portion bent downward are provided around the runner 21 in the periphery. It is adapted to be mounted on the support member 2 by being inserted into the concave portion of the.

At this time, the peripheral portion 4b of the ceiling material 4 overlaps the concave portion of the runner 21, and as shown in FIG. 21, the peripheral portions of the ceiling materials 4 and 4 attached to the adjacent grid partition portions with the runner 21 interposed therebetween. A high light-shielding effect is obtained by both 4b and 4b overlapping the recess of the runner 21, and the peripheral portions 4b and 4b of the adjacent ceiling members 4 and 4 are flush with each other on the recess of the runner 21. The ceiling member 4 attached to the ceiling member 4 is prevented from lateral displacement by placing the ceiling member 4 in contact with each other or in close proximity to each other until the gap is almost eliminated or in contact with the pressing members 8 and 9 which will be described later. It can be held.

The pressing members 8 and 9 are made of a lightweight steel material such as aluminum or a synthetic resin material and are formed to have a length substantially equal to the length of one side of one grid partition section partitioned by the vertical and horizontal runners 21 of the support member 2. It is an angled material.

As shown in FIG. 22(A), the pressing member 8 is an angle member having a T-shaped cross section, and the ceiling member 4, the upper surface portion 81 of which is attached to the adjacent grid partition portion with the runner 21 interposed therebetween. It is designed to be mounted on the peripheral portions 4b and 4b of the No. 4 while the hanging lower surface portion 82 is brought into contact with the projecting surface portions 4a and 4a inserted into the concave portion of the runner 21 (FIGS. 15 and 16). reference).

Further, as shown in FIG. 2B, the pressing member 9 is an angle member having an L-shaped cross section, and the upper surface portion 91 is attached to the runner 21 at the edge of the support member 2 and the periphery of the ceiling member 4. Along with overlapping the portion 4b, the bent surface portion 92 is attached so as to abut on the protruding surface portion 4a inserted into the concave portion of the runner 21 (see FIGS. 17 and 18).

The pressing members 8 and 9 overlap the upper surface portions 81 and 91 on the peripheral portion 4b of the ceiling material 4 in which the projecting surface portion 4a is inserted in the recessed portion of the runner 21, and the hanging lower surface portion 82 and the bent surface portion 92 in the recessed portion of the runner 21. After being inserted and installed on the support member 2, both longitudinal ends thereof are elastically biased downward by the fixing means 5 or the fixing means 6 to be fixed on the support member 2. When the pressing members 8 and 9 are fixed, the peripheral portion 4b of the ceiling member 4 is pressed downward by the pressing members 8 and 9, so that a gap easily formed between the ceiling member 4 and the runner 21 is completely sealed. It has become so. As shown in FIG. 23, two pressing members are used instead of the pressing member 8 that is bridged over the peripheral portions 4b and 4b of the ceiling members 4 and 4 that are attached to the lattice partition portions that are adjacent to each other with the runner 21 interposed therebetween. You may make it arrange|position 9 and 9 side by side so that the ceiling materials 4 and 4 may be pressed down.

The suspended ceiling 1 of this embodiment composed of these members can be constructed, for example, by the following procedure.

First, as in the case of the above-described embodiment, the hanger coupler 3 is fixed to each suspending member 7 hanging from the structural body, the runners 21 are spanned vertically and horizontally between the fixed hanger couplers 3, and the support members 2 are assembled in a grid pattern. Form.

Next, each lattice partition of the support member 2 is covered with a ceiling member 4 vertically bent downward from the projection surface portion 4a provided on the four sides shown in FIGS. The projecting surface portions 4a of the bent side portions are inserted into the recesses of the runner 21, and the peripheral portion 4b of the ceiling material 4 is placed on the recesses of the runner 21 to attach the ceiling material 4 to each grid partition portion.

Further, the pressing member 8 and the pressing member 9 are attached so as to overlap the ceiling member 4 along each runner 21 of each lattice partition.

When the ceiling member 4 and the pressing members 8 and 9 are mounted on the supporting member 2, as shown in FIG. 15, the upper surface portion 81 of the pressing member 8 at the portion where the runners 21 of the supporting member 2 cross each other in a cross shape. The pad 51 of the fixing means 5 is overlapped and the fixing means 5 is attached, and the pressing material 8 and the ceiling material 4 are pressed and fixed by the pad 51.

After the fixing means 5 is attached, or in parallel with the attachment of the fixing means 5, a portion where the runners 21 of the support member 2 intersect with each other in a T shape and the runner 21 of the support member 2 shown in FIG. The coil spring, which is the fixing means 6, is attached to the intersections of the L-shaped parts, and the pressing member 9 and the ceiling member 4 are pressed and fixed by the coil spring, whereby the construction of the suspended ceiling 1 is completed.

The illustrated configuration of the suspended ceiling 1, the forms of the fixing means 5 and 6, and the forms of the pressing members 8 and 9 are examples of the embodiment of the present invention, and the present invention is not limited to this. Can be configured in any suitable form.
As shown in FIG. 24A, a plurality of projecting surface portions 4a provided on the side portions of the ceiling material 4 may be provided on each side portion. Further, the protruding surface portion 4a is formed separately from the ceiling material 4, and as shown in FIG. 1B, a lightweight L-shaped angle material is formed as the protruding surface portion 4a by using, for example, a synthetic resin material. May be integrally fixed to the side portion of the ceiling material 4a by using a fixing means such as adhesion.

Further, in the embodiment, the ceiling material 4 is made of organic fiber or inorganic fiber as a main material, but a sheet material or a cloth material formed of a suitable non-combustible material such as glass fiber in a lightweight manner. You may use the ceiling material which consists of. The ceiling material 4 has a large repulsive force against bending depending on its forming material and thickness, so that even if the portion between the cuts 41 and 41 or the projecting surface portion 4a protruding outward is bent at a right angle, it is elastically restored to its original position. There is something to do. In that case, processing for maintaining the bent portion at the bent position, for example, a ceiling material such as a sheet or film made of aluminum or a sheet or film made of other material is attached to the surface of the ceiling material 4. This can be dealt with by appropriately performing a process for reducing the spring bag property. For example, in the illustrated embodiment, when the ceiling material 4 is attached to the support member 2, the ceiling material 4 is made of aluminum on the surface facing the structural body (the surface opposite to the bending direction of the projecting surface portion 4a in FIG. 5). It is possible to reduce the bending resilience of the ceiling material 4 by bonding the above sheets.
Instead of the fixing means 5 and 6, an adhesive tape or the like may be used.

1 suspended ceiling, 2 support members, 21 runners, 3 hanger couplers, 4 ceiling materials, 5, 6 fixing means, 7 hanging materials, 8, 9 holding materials

Claims (10)

A support member, which is hung below the structural body, is assembled in a lattice shape with runners having a substantially U-shaped cross section, and a ceiling member provided with a projecting surface portion that is bent downward on the side portion,
A structure for mounting a suspended ceiling, characterized in that a projecting surface portion of the ceiling material is inserted into a recess of the runner, and the ceiling material is mounted on a support member. The ceiling material is provided with a pair of cuts extending inwardly from the edge portion in its side portion, and a portion between the pair of cuts is inserted into the recess of the runner as a projecting surface portion bent downward. The mounting structure for a suspended ceiling according to claim 1, wherein: The suspended ceiling mounting structure according to claim 1 or 2, wherein the ceiling material provided with the projecting surface portions on each of the four side portions is configured to be mounted on each lattice partition of the support member. The suspended ceiling mounting structure according to claim 1, wherein a ceiling material having a unit area mass of 2.0 kg or less is used. The ceiling ceiling mounting structure according to any one of claims 1 to 4, wherein the ceiling material is a composite fiber structure in which a non-combustible sheet is laminated on at least one surface or inside of a fiber structure containing a main fiber and a binder fiber. .. A supporting member is attached to a hanger coupler fixed to the lower end of a hanging member hanging from the structural body, and a fixing means for elastically biasing the ceiling material downward is provided between the hanger coupler and the supporting member. The mounting structure for a suspended ceiling according to any one of claims 1 to 5, wherein: 7. The suspended ceiling mounting structure according to claim 6, wherein the fixing means is composed of a pad in contact with the surface of the ceiling material and a linear spring bridged in an arch shape between both ends of the pad. The mounting structure for a suspended ceiling according to claim 6, wherein the fixing means is a coil spring having a large-diameter ceiling material support portion provided at a lower end portion. 9. The suspended ceiling mounting structure according to claim 6, wherein a pressing member is mounted between the fixing member and the ceiling member whose projecting surface is inserted into the recess of the runner. Attaching a hanger coupler to each of a plurality of suspending materials hanging from the structural body, spanning longitudinally and laterally a runner having a substantially U-shaped cross section between the attached hanger couplers, and assembling them in a lattice to form a support member,
A ceiling material having a rectangular shape in plan view, which is provided with protruding surface portions that are bent downward in the four sides, is covered from above on each grid partition portion of the support member, and the protruding surface portions of each side portion are recessed in the runner. A step of inserting and engaging the inside of the ceiling material, and stacking the peripheral portion of the ceiling material on the recesses of the runner and attaching it to each lattice partition portion,
Attaching a fixing means to a portion where the runners of the supporting member intersect with each other in a cross shape, and fixing a corner portion of the ceiling material with the fixing means;
A method for constructing a suspended ceiling, characterized in that the suspended ceiling is attached below the structural frame.

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