JP2015063853A - Ceiling fall prevention structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling fall prevention structure that makes a ceiling plane component hardly separated from a ceiling backing material and that can improve designability.SOLUTION: A reinforcing film layer 11 comprising reinforced fibers and paint is formed astride a plurality of ceiling plane components 1 on an indoor-side surface of a ceiling. In addition, preferably, the reinforcing film layer 11 is formed by applying fiber-reinforced paint to a surface of the ceiling plane component 1, and the paint is elastic paint. Furthermore, preferably, the reinforcing film layers 11 are formed like a belt, disposed in a grid pattern, and fixed in a suspended state to a ceiling backing material 3.

Description

  The present invention relates to a ceiling fall prevention structure.

  In recent years, a ceiling board sometimes falls during an earthquake, and various measures for preventing the ceiling from falling have been proposed (for example, see Patent Document 1). The technique of Patent Document 1 suppresses vibration of the ceiling by stretching wires in a lattice shape between the walls surrounding the room on the lower side of the ceiling material and connecting the wires and the ceiling material with a connecting member. It prevents falling.

JP 2008-121371 A

  However, in the above-described conventional ceiling fall prevention structure, the ceiling plates on the surface of the ceiling material are arranged via joints and are not fixed to each other. There was a problem that it may fall apart from the ceiling base material such as a field edge alone. Furthermore, in the conventional ceiling fall prevention structure, since the wire is exposed below the ceiling surface, the indoor space is narrowed and the appearance is not good. A lot of money was required to install the wires.

  From such a viewpoint, an object of the present invention is to provide a ceiling fall prevention structure in which the ceiling surface constituent material is not easily separated from the ceiling base material and can further improve the design.

  The invention according to claim 1 for solving the above-described problem is that a reinforcing coating layer comprising reinforcing fibers and a coating is formed so as to straddle a plurality of ceiling surface components on the indoor side surface of the ceiling. This is a ceiling fall prevention structure.

  The ceiling surface constituent material in the present invention is a member exposed on the ceiling surface, and is a ceiling board, equipment equipment such as lighting and air conditioner, and equipment line connected to the equipment equipment, or ceiling board and equipment equipment. The locking member which locks. According to the above configuration, the ceiling surface constituent materials are connected to each other by the reinforcing coating layer, so that the backlash between the ceiling surface constituent materials is suppressed, and the ceiling surface constituent materials are difficult to separate from the ceiling base material. Furthermore, since the reinforcing coating layer is integrated with the surface of the ceiling, it is not necessary to provide a wire in the room as in the conventional case, and the indoor space is not narrowed. Furthermore, since the shape and color of the reinforcing coating layer can be selected as appropriate, the design and aesthetics of the ceiling surface can be improved. Further, the cost can be reduced as compared with the conventional wire installation cost.

  The invention according to claim 2 is characterized in that the reinforcing coating layer is formed by applying a fiber reinforced paint to the surface of the ceiling surface constituting material. According to such a configuration, the reinforcing coating layer can be easily formed on the surface of the ceiling surface constituting material, so that the construction period can be shortened and the construction cost can be shortened.

  The invention according to claim 3 is characterized in that the paint is an elastic paint. According to such a configuration, it is possible to reduce the accumulation of stress on the paint due to vibration by absorbing the micro-vibration that occurs on a daily basis, and thus it is possible to suppress the occurrence of fatigue failure of the reinforcing coating layer. .

  The invention according to claim 4 is characterized in that the reinforcing coating layer is formed in a strip shape and arranged in a lattice shape. According to such a configuration, even if a part of the ceiling surface constituent material is separated from the ceiling base material, the grid-like reinforcing coating layer adheres to the ceiling surface constituent material. The film layer serves as a safety net, and the ceiling surface component can be prevented from falling into the room. Moreover, the design property improves and the person who looked at the reinforcement coating film layer can obtain aesthetics.

  The invention according to claim 5 is characterized in that the reinforcing coating layer is suspended and fixed to a ceiling base material. According to such a structure, since the fluctuation | variation amount of a reinforcement coating film layer can be made small, the shakiness between ceiling surface constituent materials can be suppressed further.

  The invention according to claim 6. The reinforcing coating layer is formed in a band shape and is arranged so as to cover joints between the adjacent ceiling surface constituent members. According to such a configuration, since a part of the ceiling surface constituent material is fixed to the reinforcing coating film layer, the ceiling surface constituent material can be prevented from falling into the room.

  According to the ceiling fall prevention structure according to the present invention, the ceiling surface constituent material can be made difficult to separate from the ceiling base material, and the design properties can be improved.

It is the looking up top view which showed the ceiling fall prevention structure which concerns on 1st embodiment of this invention. It is the looking-up perspective view which showed the ceiling fall prevention structure which concerns on 1st embodiment of this invention. It is sectional drawing which showed the joint of the joint part of a ceiling surface constituent material. It is sectional drawing which showed the connection with a ceiling surface structural material and a wall. It is sectional drawing which showed the modification of the reinforcement coating film layer. It is the looking-up perspective view which showed the ceiling fall prevention structure which concerns on 2nd embodiment of this invention. It is sectional drawing which showed the joint of the joint part of a ceiling surface constituent material. It is sectional drawing which showed the modification of the joint of the joint part of a ceiling surface constituent material. It is sectional drawing which showed the connection with a ceiling surface structural material and a wall.

(First embodiment)
A ceiling fall prevention structure according to a first embodiment of the present invention will be described in detail with reference to the drawings. In the description, the same reference numerals are used for the same elements, and duplicate descriptions are omitted.

  As shown in FIG. 1, the ceiling surface component 1 is fixed to a ceiling base material 3 suspended by suspension bolts 2 suspended from a ceiling frame. The ceiling base material 3 is configured by, for example, assembling a field edge 3a and a field edge receiver 3b in a lattice shape. The ceiling surface component 1 is a member exposed on the ceiling surface, and locks the ceiling board, equipment such as lighting and air conditioner, and equipment lines connected to the equipment, or the ceiling board and equipment. The locking member to say. In FIG. 1, only the ceiling plate 1a is illustrated. The ceiling board 1a has a rectangular shape, and the longitudinal direction thereof is provided along the field edge 3a. The width direction (short direction) edge part of the ceiling board 1a is being fixed to the wide edge 3a with the width direction edge part of the adjacent ceiling board 1a. The shape of the ceiling board 1a and the contact with the field edge 3a are merely examples, and other configurations may be used.

  The ceiling fall prevention structure 10 according to the first embodiment is formed such that a reinforcing coating layer 11 including reinforcing fibers and paint is formed so as to straddle a plurality of ceiling surface components 1 on the indoor side surface of the ceiling. Features. The reinforcing coating layer 11 has a strip shape and is formed by applying a fiber reinforced paint to the surface of the ceiling surface constituting material 1. The fiber reinforced paint is constituted by mixing linear short fibers with a water-based elastic paint. The fiber reinforced paint is applied to a predetermined thickness (for example, about 1 mm) with a roller. The reinforcing coating layer 11 having such a configuration can have a higher tensile strength and tear strength than a coating film in which fibers are not mixed. The short fibers are not limited to specific fibers, and carbon fibers, nylon fibers, and the like may be used.

  In the present embodiment, the reinforcing coating layer 11 mainly extends in a direction orthogonal to the joints between the ceiling plates 1a, and is formed so as to straddle the plurality of ceiling surface components 1, 1,. ing. Specifically, the reinforcing coating layer 11 includes a parent coating portion 12 that passes through the center of the ceiling (the center of gravity of the room) and a child coating portion 13 that is narrower than the parent coating portion 12. The parent coating portion 12 is formed in a cross shape, and its intersection is located at the center of the ceiling. In addition, when the lighting equipment and the air conditioning equipment are located in the center of the ceiling, they may be formed by shifting as appropriate. The width of the parent coating portion 12 is, for example, 10 cm.

  The crossed portion of the parent coating portion 12 is suspended and fixed to the ceiling base material 3. Specifically, a receiving bolt (not shown) that extends downward is attached to the suspension member 3c that is bridged between the field edge receivers 3b. The receiving bolt penetrates the ceiling plate, and the lower end portion of the receiving bolt extends to the lower side of the parent coating portion 12. Then, the receiving plate 4 is screwed into the lower end portion of the receiving bolt to support the parent coating portion 12 from below. The hanging fixing position of the reinforcing coating layer 11 is not limited to the crossed portion of the parent coating portion 12, and may be another portion of the parent coating portion 12, or the child coating portion 13. It may be.

  The child coating portion 13 is formed in parallel to one of the cross-shaped parent coating portions 12. The child coating portion 13 extends in a direction (width direction) intersecting with the longitudinal direction of the ceiling board 1a, and is formed so as to intersect with a large number of ceiling boards 1a. The width | variety of the child coating part 13 is 5 cm, for example.

  As shown in FIG. 2, when the reinforcing coating layer 11 (parent coating portion 12 and child coating portion 13) intersects the lighting equipment line 1 b, a frame portion where the lighting equipment 1 c is not located (adjacent lighting equipment 1 c, Pass through the portion between 1c). In addition, when the reinforcement coating film layer 11 cross | intersects the main body illumination part of an illuminating device, or the opening part of an air conditioning apparatus, the reinforcement coating film layer 11 is formed to the frame part of the edge of an illuminating device or an air conditioning apparatus. That is, a part of the reinforcing coating layer 11 is cut out so that the reinforcing coating layer 11 does not overlap the main body illumination portion or the opening portion, and the ceiling plate 1a is connected to the frame portion of the lighting device or the air conditioning device. .

  In addition, the arrangement | positioning shape of the parent coating part 12 and the child coating part 13 is not limited to the said shape. For example, the parent coating portion 12 is not limited to a cross shape, and may be formed in various shapes (a lattice shape when the room is large, a straight line shape when the room is small, etc.) according to the size of the room. Further, the child coating portion 13 may be formed in a lattice shape instead of extending only in one direction. Furthermore, the reinforcing coating layer 11 having the same width may be formed in a lattice shape without distinguishing the parent coating portion 12 and the child coating portion 13.

  As shown in FIG. 3, a reinforcing coating layer 11 is formed at the joint portion (joint portion) between the ceiling plates 1 a and 1 a so as to cover the joint from the indoor side. When there is a clearance between the ceiling plates 1a and 1a, the reinforcing coating layer 11 slightly enters the clearance. Although not shown, there is no clearance between the ceiling plates, and the reinforcing coating layer is formed so as to cover the abutting surfaces even when the ceiling plates are abutted against each other.

  As shown in FIG. 4, the reinforcing coating layer 11 extends to the wall surface 5 along the surface of the ceiling plate 1 a at the connection portion between the end portion of the ceiling plate 1 a and the wall surface 5. 5 hangs down. The hanging length of the hanging portion 11a is set to, for example, about 5 cm, and the ceiling plate 1a and the wall surface 5 are fixed when the reinforcing coating layer 11 is in close contact with both surfaces of the wall surface 5 and the ceiling plate 1a. ing. By setting it as such a structure, since the ceiling board 1a and the wall surface 5 can be integrated, the wall surface 5 and the ceiling board 1a (ceiling surface constituent material 1) will shake integrally at the time of an earthquake. Therefore, in the connection between the wall surface 5 and the ceiling surface component 1, the wall surface 5 and the ceiling surface component 1 do not collide even if no clearance is provided, so that the ceiling surface component 1 can be prevented from falling off.

  Next, a modified example of the reinforcing coating layer will be described. The reinforcing coating layer 11 is formed by applying a fiber reinforced paint, but the reinforcing coating layer 14 according to the modification is applied with a coating 14b on a mesh base 14a as shown in FIG. It is formed by doing. The mesh base 14a is made of synthetic resin or the like. For example, a mesh base having a mesh interval of 4 mm and a thickness of 0.2 mm is used. A water-based elastic paint is used as the paint 14b, and the inside and the surface of the mesh base are roller-coated with a predetermined thickness.

  According to the ceiling fall prevention structure 10 having the above-described configuration, the ceiling surface constituent materials 1 and 1 are connected to each other by the reinforcing coating layer 11 or 14, so that the ceiling surface constituent materials 1 and 1 are integrally shaken during an earthquake. It will be. Therefore, the backlash between the ceiling surface constituting materials 1 and 1 is suppressed, and the ceiling surface constituting material 1 is hardly separated from the ceiling base material 3. In particular, since the reinforcing coating layer 11 includes an elastic paint, it can efficiently absorb backlash during an earthquake. Furthermore, since the reinforcing coating layer 11 absorbs minute vibrations that occur on a daily basis, it is possible to reduce the accumulation of stress on the coating material due to vibrations, thereby suppressing the occurrence of fatigue failure of the reinforcing coating layer 11. be able to.

  Furthermore, since the reinforcing coating layer 11 is suspended and fixed to the ceiling base material 3, the amount of fluctuation of the reinforcing coating layer 11 can be reduced, so that the backlash between the ceiling surface constituent materials 1 and 1 is further suppressed. can do.

  Further, since the reinforcing coating layer 11 is integrated with the surface of the ceiling surface constituting material 1, it is not necessary to provide a wire in the room as in the prior art, and the indoor space is not narrowed. Moreover, since the shape and color of the reinforcing coating layer 11 can be selected as appropriate, the design and beauty of the ceiling surface can be improved. If transparent or nearly transparent paint and reinforcing fibers are used, the reinforcing coating layer 11 can be made inconspicuous and the design of the ceiling board 1a itself can be utilized as it is. Furthermore, since the reinforcing coating layer 11 can be monitored from the room, diagnosis and maintenance can be easily performed.

  Furthermore, since the reinforcing coating layer 11 can be constructed from the room, it is easy to form the reinforcing coating layer 11 even when it is applied to the existing ceiling board 1a, thereby shortening the construction period and the construction cost. Can do. Furthermore, if the reinforcing coating layer 11 is formed by applying a fiber reinforced paint, the reinforcing coating layer 11 can be easily formed on the surface of the ceiling surface constituting material 1, so that the construction period can be further shortened. And shortening the construction cost. Moreover, since the shape (width | variety, thickness, etc.) of the reinforcement coating film layer 11 can be set freely, the shape according to the various arrangement | positioning of the ceiling surface structural material 1 can be provided easily.

  Even if the ceiling surface component 1 is separated from the ceiling base material 3, it is fixed to the adjacent ceiling surface component 1 through the reinforcing coating layer 11, so that the ceiling surface component 1 is indoors. Can be prevented from falling. In particular, since the reinforcing coating layer 11 is suspended and fixed to the ceiling base material 3, the reinforcing coating layer 11 does not hang down, and the ceiling surface constituting material 1 can be supported at a high position. That is, the reinforcing coating layer 11 plays the role of a safety net (particularly, when the reinforcing coating layer 11 is formed in a lattice shape, the role of the net is large).

  Furthermore, since the reinforcing coating layer 11 is formed in a strip shape, the reinforcing coating layer 11 does not block the entire surface of the ceiling surface constituent material 1. Thereby, it is possible to prevent the loss of the space performance (sound absorption performance, fire resistance performance, moisture absorption performance, aesthetic appearance, color, etc.) provided in the ceiling board 1a itself.

(Second embodiment)
Next, the ceiling fall prevention structure according to the second embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 6, in the ceiling fall prevention structure 10 ′ according to the second embodiment, the reinforcing coating layer 11 is arranged so as to cover the joints mainly along the joints between the ceiling plates 1a. . The reinforcing coating layer 11 is formed so that the central portion in the width direction is located at the center of the joint, and is in contact with the ceiling plates 1a and 1a on both sides in an equal area.

  In this embodiment, the ceiling board 1a is staggered. Specifically, the ceiling boards 1a are arranged in a plurality of lines in a straight line along the depth direction of the room, and the ceiling rows 7 and 7 adjacent in the frontage direction are half the length of the ceiling board 1a in the depth direction. It is arranged with an offset.

  The reinforcing coating layer 11 is formed in a lattice shape, and extends in the depth direction and the frontage direction, respectively. The reinforcing coating layer 11 extending in the depth direction is formed along joints at both ends in the frontage direction in which two rows of ceiling rows 7 arranged in the depth direction are arranged. The reinforcing coating layer 11 extending in the frontage direction is formed with an interval separating the two ceiling plates 1a, 1a (a distance in which two ceiling plates 1a are arranged in the depth direction). It is formed along the joint at the end in the depth direction of one of the ceiling rows 7, 7. This reinforcing coating layer 11 passes through the intermediate portion in the depth direction of the ceiling plate 1 a of the other ceiling row 7.

  By forming the reinforcing coating layer 11 as described above, the reinforcing coating layer 11 is formed in contact with at least one side of all the ceiling boards 1a. In addition, the arrangement | positioning shape of the reinforcement coating film layer 11 is an example, Comprising: It is not limited to the said shape, You may form the reinforcement coating film layer 11 along all the joints.

  In the connection between the lighting device 1c or the air conditioning device 1d and the ceiling board 1a, the reinforcing coating layer 11 is formed over the entire circumference of the lighting device 1c and the entire circumference of the air conditioning device 1d.

  Next, a description will be given of the connection of the joint portions of the ceiling surface components 1 and 1 when the ceiling is a system ceiling. As shown in FIG. 7, the ceiling base material 6 in the system ceiling is locked to a support bar 6a supported by a receiving channel 6b supported by a suspension bolt (not shown) via a clip member 6c. Yes. The support bar 6a has an inverted T-shaped cross section, and supports the ceiling plate 1a by locking the end of the ceiling plate 1a to the horizontal portion. The lower surface of the horizontal portion of the support bar 6a usually serves as a makeup joint.

  When the support bar 6a is exposed at the joint portion as described above, the reinforcing coating layer 11 covers the entire horizontal portion of the support bar 6a and projects both ends in the width direction to the outside so that the ceiling plate 1a is exposed. It is formed so as to be in close contact with the surface. In addition, when it is desired to reduce the width of the reinforcing coating layer 11, as shown in FIG. 8, the reinforcing coating layer 11 is not formed but the groove portion is formed in the central portion in the width direction of the horizontal portion of the support bar 6a. Thus, it is possible to give a sharp impression and enhance the design.

  As shown in FIG. 9, the support bar 6 a is brought close to the wall surface 5 at the portion where the end portion of the ceiling plate 1 a is engaged with the wall surface 5, and the end portion of the ceiling plate 1 a is locked to one of the horizontal portions. The reinforcing coating layer 11 covers the entire horizontal portion of the support bar 6 a, extends both ends in the width direction thereof, closely adheres one to the surface of the ceiling plate 1 a, and hangs the other along the wall surface 5. Adhere closely. The hanging length of the hanging part 11a of the reinforcing coating layer 11 is set to about 5 cm, for example. The shape of the support bar 6a is not limited to the inverted T-shaped cross section, and may have an L-shaped cross section. In this case, the width of the horizontal portion becomes narrow, and the width of the reinforcing coating layer 11 can be reduced.

  According to the ceiling fall prevention structure 10 ′ having the above configuration, the following operational effects can be obtained in addition to the operational effects similar to those of the first embodiment. That is, by forming the reinforcing coating layer 11 so as to cover the joint along the joint between the ceiling surface constituent materials 1, 1, the reinforcing coating layer 11 and the surface of the ceiling surface constituent material 1 on both sides of the joint are formed. The contact area can be increased. Therefore, since the stress acting on the joint portion can be dispersed and received in a wide range, the backlash between the ceiling surface constituent members 1 and 1 can be further suppressed. Furthermore, even if the ceiling surface component 1 is separated from the ceiling base material 6, it can be supported by the reinforcing coating layer 11 having a large area, so that the ceiling surface component 1 can be reliably prevented from falling into the room. .

  As mentioned above, although the form for implementing this invention was each demonstrated, this invention is not limited to the said embodiment, A design change, such as a material, a shape, and a magnitude | size, is suitably possible in the range which does not deviate from the meaning of this invention. It is. For example, in the said embodiment, although the reinforcement coating film layer is formed by apply | coating a fiber reinforced coating material or apply | coating the coating material 14b to the mesh base | substrate 14a, it is not limited to this. For example, a fiber reinforced paint may be applied to the mesh base 14a. In this way, a reinforcing coating layer having a very high reinforcing effect can be obtained.

DESCRIPTION OF SYMBOLS 1 Ceiling fall prevention structure 1a Ceiling board 1b Lighting equipment line 1c Lighting equipment 2 Hanging bolt 3 Ceiling base material 3a Field edge 3b Field edge receiver 5 Wall surface 6 Ceiling foundation material 6a Support bar 6b Receiving channel 7 Ceiling row 10 Ceiling fall prevention structure 10 'Ceiling fall prevention structure 11 Reinforcement coating layer 11a Hanging part 12 Parent coating part 13 Child coating part 14 Reinforcement coating layer 14a Mesh base 14b Paint

Claims (6)

A ceiling fall prevention structure characterized in that a reinforcing coating layer comprising reinforcing fibers and paint is formed so as to straddle a plurality of ceiling surface components on the interior surface of the ceiling. The ceiling drop prevention structure according to claim 1, wherein the reinforcing coating layer is formed by applying a fiber reinforced paint to a surface of the ceiling surface constituent material. The ceiling fall prevention structure according to claim 1 or 2, wherein the paint is an elastic paint. The ceiling drop prevention structure according to any one of claims 1 to 3, wherein the reinforcing coating layer is formed in a band shape and arranged in a lattice shape. The ceiling drop prevention structure according to any one of claims 1 to 4, wherein the reinforcing coating layer is suspended and fixed to a ceiling base material. The ceiling drop prevention structure according to claim 1, wherein the reinforcing coating layer is formed in a band shape and arranged to cover joints between the adjacent ceiling surface constituent members.

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