JP6925215B2 - Building ceiling and building ceiling construction method - Google Patents

Description

The present invention relates to a building ceiling and a method of constructing a building ceiling, and in particular, is constructed by supporting a ceiling material having a board material and a base material on each of a plurality of support members provided side by side. Regarding the ceiling of the building and the construction method of the ceiling of the building.

A method of constructing a ceiling of a building by supporting a ceiling material having a board material and a base material by each of a plurality of support members provided side by side is already known. As an example, the ceiling construction method described in Patent Document 1 can be mentioned.

In the ceiling construction method described in Patent Document 1, a plurality of ribs are arranged at appropriate intervals on the back surface of a square plate having a unit area to form a ribbed panel. In addition, support members for the ceiling panel (base material in Patent Document 1) are arranged around the four circumferences of the mounting level surface of the ceiling panel, and support members that support both edges orthogonal to the ribs of the ribbed panel are unidirectionally arranged. Arrange in parallel facing only. Then, a ribbed panel is fastened (fixed) to each support member.

Japanese Unexamined Patent Publication No. 05-295847

In the ceiling construction method described in Patent Document 1 described above, the ribbed panel is lifted below the support member, and both edges of the ribbed panel are used as the support member in a state where the ribbed panel is in contact with the lower surface of the support member. To conclude. At this time, if both side edges of the ribbed panel deviate from the position where they are fastened to the support member, the ribbed panel may not be properly fastened to the support member.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide each of a plurality of support members provided with ceiling materials having a board material and a base material side by side. It is to provide the ceiling of the building which is composed of the proper support of the lumber.
Another object of the present invention is a method for constructing a ceiling of a building in which a ceiling material having a board material and a base material can be appropriately supported by each of a plurality of support members provided side by side. Is to provide.

According to the ceiling of the building of the present invention, a plurality of the above-mentioned problems are provided in a state of (A) a board material, a ceiling material having a base material attached to the upper surface of the board material, and (B) side by side. (C) The support member has a protrusion that protrudes toward the space between the support members. , (D) The base material enters the space, and the end portion of the base material in the extending direction of the base material is placed on the protruding portion, so that the outer edge portion of the board material is the support member. It is solved by reaching the position where it is fastened to.

In the ceiling of the building of the present invention configured as described above, when the ceiling material provided with the board material and the base material is supported by each of the plurality of support members provided side by side, the outer edge portion of the board material is supported. Fasten to the support member. Further, the support member includes a protruding portion protruding toward the space between the support members. Then, when the base material enters the above space and the end portion of the base material in the extending direction is placed on the protruding portion, the outer edge portion of the board material reaches a position where it is fastened to the support member. That is, by moving the ceiling material so that the end portion in the extending direction of the base material rests on the protruding portion, the outer edge portion of the board material can be appropriately guided to the position where it is fastened to the support member. As a result, the ceiling material is appropriately supported by each of the plurality of support members.

Further, to describe a suitable configuration for the ceiling of the building, the end portion of the base material in the extension direction is a base material side projecting portion protruding outward in the extension direction, and the base material. The upper surface of the side protruding portion may be an inclined surface that is inclined so as to be lowered toward the outside in the extending direction.
In the above configuration, the upper surface of the base material side protrusion is inclined so as to be lowered toward the outside in the extending direction of the base material. As a result, when the ceiling material is lifted toward the support member, the ceiling material deviates from the original position (specifically, the position where the base material fits in the space between the support members) and the upper surface of the base material side protrusion. Even if the ceiling material collides with the lower surface of the support member, the ceiling material moves along the upper surface of the base material side protrusion, which is an inclined surface, and moves toward the original position.

Further, to describe a more preferable configuration for the ceiling of the building, the support member is formed of a long body, and the upper surface of the protrusion is from one end of the protrusion in the longitudinal direction of the support member. It is an inclined surface that is inclined so as to be lowered toward the other end, and the lower surface of the base material side protrusion is along the upper surface of the base material side protrusion when the base material side protrusion is placed on the upper surface of the protrusion. It is preferable that the surface is inclined to.
In the above state, the upper surface of the protruding portion is an inclined surface, and the lower surface of the projecting portion on the base material side is an inclined surface that is inclined along the upper surface of the protruding portion. As a result, the base material side protrusion can be easily placed on the protrusion, and the state in which the base material side protrusion can be placed on the protrusion can be maintained more stably.

Further, to describe a more suitable configuration for the ceiling of the building, each of the plurality of support members is provided with a plurality of the protrusions arranged along the longitudinal direction, and the plurality of the support members are provided. It is preferable that each of the members is installed so that the arrangement positions of the protrusions in each of the plurality of support members are aligned between the support members in the longitudinal direction.
In the above configuration, since each support member is provided with a plurality of projecting portions, it is possible to more appropriately guide the outer edge portion of the board material to the position where it is fastened to the support member. Further, since the arrangement positions of the protrusions in each support member are aligned between the support members, the positions where the extending direction end portions of the base material are placed on the protrusions are also aligned between the support members.

Further, to describe a more suitable configuration for the ceiling of the building, each of both ends of the base material in the extending direction is the base material side protrusion, and each of the base material side protrusions is said. Of the pair of support members adjacent to each other with a space in between, the support members may be placed on the protrusions of the support members located closer to each other.
In the above configuration, each of both ends of the base material in the extending direction is a base material side protrusion. Then, the ceiling material is supported by the support member in a state where both the base material side protrusions are placed on the protrusions of the support member. As a result, the ceiling material can be more appropriately supported by the support member.

Further, to describe a more suitable configuration for the ceiling of the building, a plurality of the base materials are provided on the upper surface of the board material in a state of being arranged in a direction intersecting the extending direction, and a plurality of the base materials are provided. It is preferable that the end portion of each of the base materials in the extending direction is the base material side protruding portion.
In the above configuration, a plurality of base materials are provided on the upper surface of the board material, and the extending direction end portion of each base material is the base material side protruding portion. Then, the ceiling material is supported by the support member in a state where the base material side protrusions of each base material are placed on the protrusions. As a result, the ceiling material can be more appropriately supported by the support member.

Further, to describe a more suitable configuration for the ceiling of the building, the outer edge portion of the board material projects outward from the end portion of the base material in the extension direction, and the board material extends outward in the extension direction. It may be fastened to the support member outside the space.
In the above configuration, the outer edge portion of the board material projects outward from the extension direction end portion of the base material. In the case of such a configuration, when the extending direction end portion of the base material is placed on the protruding portion, the outer edge portion of the board material reaches a position directly below the support member (that is, a position where the base material is fastened to the support member).

Further, a more suitable configuration for the ceiling of the building will be described as having a horizontal member arranged between the support members and connecting the support members to each other, and among the outer edge portions of the board material, the support. It is preferable that the portion located directly below the member is fastened to the support member, and the portion located directly below the horizontal member is fastened to the horizontal member.
In the above configuration, of the outer edge portion of the board material, the portion located directly below the support member is fastened to the support member, and the portion directly below the horizontal member is fastened to the horizontal member. With such a configuration, the ceiling material can be more appropriately supported by the support member and the horizontal member.

Further, to describe a more preferable configuration with respect to the ceiling of the building, when the end portion of the base material in the extending direction is placed on the protruding portion, the protruding portion extends in the vertical direction. It is preferable that the position is sandwiched between the end portion of the base material and the board material in the direction.
In the above configuration, when the extension direction end portion of the base material is placed on the protrusion portion, the protrusion portion is sandwiched between the extension direction end portion of the base material and the board material in the vertical direction. .. In other words, when the ceiling material is lifted to a position where the upper surface of the board material abuts on the lower surface of the protrusion, the extension direction end of the base material can be placed on the protrusion in the vertical direction (level). Will reach. With such a configuration, it becomes easier to move (transport) the ceiling material to a position where the end portion in the extending direction of the base material is placed on the protruding portion.

Further, according to the method for constructing a ceiling of a building of the present invention, the above-mentioned problem is to obtain a ceiling material having (A) a board material and a base material attached to the upper surface of the board material. A step of lifting the ceiling material so as to approach a plurality of support members provided side by side for support, and (B) lifting the ceiling material to a position where the base material enters the space between the support members, and then the space. The step of horizontally moving the ceiling material so that the end portion of the base material in the extending direction of the base material is placed on the protruding portion of the support member projecting toward, and (C) the space. After the base material has entered and the end portion of the base material in the extending direction is placed on the protruding portion, the outer edge portion of the board material has reached a position where it is fastened to the support member, and then the board material. This is solved by having a step of fastening the outer edge portion of the ceiling member to the support member and supporting the ceiling material by the support member.
According to the above method, the ceiling material can be appropriately guided to the position where the outer edge portion of the board material is fastened to the support member, and the ceiling material can be appropriately supported by each of the plurality of support members. ..

According to the present invention, in constructing the ceiling of a building, a ceiling material having a board material and a base material can be appropriately supported by each of a plurality of support members provided side by side. This makes it possible to efficiently proceed with the installation and fixing work of the ceiling material in the construction work of the building.

It is a perspective view of the ceiling of the building which concerns on one Embodiment of this invention. It is a figure which shows the state which the ceiling material was removed from the ceiling. It is a top view of the support member and the horizontal member. It is a top view of the ceiling material. It is a figure which shows the AA cross section of FIG. It is a figure which shows the BB cross section of FIG. It is an enlarged perspective view which showed the protrusion provided on the support member. It is a perspective view which showed the end part in the extension direction of the base material of a ceiling material in an enlarged manner. It is a figure which shows the procedure of the ceiling construction work. It is a figure which shows the state of lifting a ceiling material. It is a figure which shows the situation which the end portion in the extending direction of a base material collided with the lower part of a support member. It is a figure which shows the state which the ceiling material is moved horizontally with respect to a support member. It is a figure which shows the movement of the end portion in the extending direction of a base material at the time of the horizontal movement of a ceiling material. It is a figure which shows the state of fastening the outer edge portion of a board material to a support member.

Hereinafter, a method of constructing a building ceiling and a building ceiling according to an embodiment of the present invention (hereinafter referred to as the present embodiment) will be described. However, the embodiments described below are for facilitating the understanding of the present invention and do not limit the present invention. That is, the present invention can be modified or improved without departing from the spirit of the present invention. Also, of course, the present invention may include an equivalent thereof.

<< Outline structure of the ceiling of the building >>
First, the schematic configuration of the ceiling of the building (hereinafter, ceiling 1) according to the present embodiment will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view of the ceiling 1. FIG. 2 is a diagram showing a state in which one ceiling panel 2 is removed from the ceiling 1 shown in FIG. FIG. 3 is a plan view (viewed from above) of the field edge receiver 3 and the horizontal member 4 described later. FIG. 4 is a plan view (viewed from above) of the ceiling panel 2 described later.

In the following, one of the two horizontal directions orthogonal to each other will be referred to as the "girder direction" and the other will be referred to as the "inter-beam direction". Further, in the following description, the "vertical direction" is a direction corresponding to the vertical direction.
Further, in this section, when explaining the position, posture, state, etc. of each member, the position, posture, state, etc. at the time when the ceiling 1 is completed will be described unless otherwise specified.

As shown in FIGS. 1 and 2, the ceiling 1 has a ceiling panel 2 as a ceiling material, a field edge receiver 3 as a support member, and a horizontal member 4. The ceiling panel 2 has a board material 5 as a face material. The board material 5 is formed by, for example, forming a gypsum board into a square shape.

The field edge receiver 3 is a long body extending in the girder direction, and is made of the wood (crosspiece) of the present embodiment. Here, the girder direction corresponds to the longitudinal direction of the field edge receiver 3. Further, as shown in FIG. 3, a plurality of field edge receivers 3 are arranged at regular intervals in the beam-to-beam direction. That is, in the present embodiment, a plurality of field edge receivers 3 are provided side by side.

As shown in FIG. 3, the horizontal member 4 is a member that is arranged between the field edge receivers 3 in order to make the intervals between the field edge receivers 3 uniform and connects the field edge receivers 3 (support members) to each other. .. The horizontal member 4 is made of wood (bare) and extends with a certain amount of extension. The horizontal members 4 are assembled to each field edge receiver 3 so as to be substantially orthogonal to each field edge receiver 3, and are arranged at regular intervals in the girder direction. That is, the field edge receiver 3 and the horizontal member 4 are assembled in a rectangular shape as shown in FIG. 3, in other words, two field edge receivers 3 adjacent to each other and two horizontal frames arranged between them. Each field edge receiver 3 and each horizontal member 4 are arranged so that the lumber 4 and the lumber 4 form a rectangular frame.

The ceiling 1 is configured such that the ceiling panel 2 is fixedly supported by the field edge receiver 3 and the horizontal member 4. Specifically, as shown in FIG. 2, the field edge receiver 3 and the horizontal member 4 are assembled in a rectangular frame shape, and the board material 5 of the ceiling panel 2 is positioned below the field edge receiver 3 and the horizontal member 4. The ceiling panel 2 is arranged so as to do so. After that, the four-circumferential outer edge portion (outer edge portion) of the board material 5 is fastened to each of the field edge receiver 3 and the horizontal member 4 with screws. As a result, the ceiling panel 2 is supported by the field edge receiver 3 and the horizontal member 4.
The ceiling 1 is constructed by repeating the above procedure and laying the board material 5 in the girder direction and the beam-to-beam direction.

Further, when fastening the board material 5 of the ceiling panel 2 to each of the field edge receiver 3 and the horizontal member 4, the space inside the rectangular frame formed by the field edge receiver 3 and the horizontal member 4 (hereinafter referred to as space V) is formed. The field edge 6 of the ceiling panel 2 enters. The field edge 6 corresponds to the base material and is attached to the upper surface of the board material 5 as shown in FIG. The field edge 6 is made of steel or wood and extends along the beam-to-beam direction as shown in FIG. In other words, the inter-beam direction corresponds to the extending direction of the field edge 6.

Further, in the present embodiment, a plurality of field edges 6 are attached to each board material 5, and in the present embodiment, the three field edges 6 intersect with the girder direction (that is, the extending direction of the field edges 6). Strictly speaking, they are attached to the upper surface of the board material 5 in a state of being arranged at regular intervals in the direction orthogonal to the extending direction of the field edge 6.
The number of field edges 6 per ceiling panel 2 is not particularly limited, and at least one or more may be provided.

<< Detailed configuration of each part of ceiling 1 >>
Next, the detailed configuration of each part of the ceiling 1 will be described with reference to FIGS. 5 to 8 together with FIGS. 3 and 4 described above. 5 and 6 are views showing a cross section of the ceiling 1, FIG. 5 shows a cross section AA of FIG. 1, and FIG. 6 shows a cross section BB of FIG. FIG. 7 is an enlarged perspective view showing a protruding portion 7 provided on the field edge receiver 3. FIG. 8 is an enlarged perspective view showing the end portion of the field edge 6 in the extending direction.

Explaining the field edge receiver 3, the field edge receiver 3 is located at the side edge portion of the board material 5 (at the end of the outer edge portion in the beam-to-beam direction) in a state where the field edge receiver 3 is located above the board material 5 as shown in FIG. The ceiling panel 2 is supported by fastening the parts to be used with screws B.
Further, as shown in FIG. 3, a plurality of field edge receivers 3 extend long along the girder direction and are arranged side by side along the beam-to-beam direction. Then, in the direction between the beams, a space V in which the field edge 6 of the ceiling panel 2 enters is formed between the field edge receivers 3.

Further, as shown in FIG. 7, each field edge receiver 3 is provided with a protruding portion 7 projecting toward the space V. The projecting portion 7 projects from the side end surface of the field edge receiver 3 toward the adjacent field edge receiver 3 in the beam-to-beam direction. Of the plurality of field edge receivers 3 arranged in the beam-to-beam direction, the field edge receiver 3 arranged closest to the edge in the beam-to-beam direction is directed toward the center position of the ceiling panel 2 in the beam-to-beam direction, as shown in FIG. It has only a protruding portion 7. As shown in FIG. 3, the other field edge receivers 3 have a projecting portion 7 projecting toward the center position of the ceiling panel 2 and a projecting portion 7 projecting toward the side opposite to the center position of the ceiling panel 2. And have.

Explaining the shape of the protruding portion 7, as shown in FIG. 6, the protruding portion 7 has a substantially trapezoidal shape in a side view. Specifically, the lower surface of the protruding portion 7 is a flat surface and is in contact with the upper surface of the board material 5. The upper surface 7a of the protrusion 7 is an inclined surface as shown in FIGS. 6 and 7, and strictly speaking, the upper surface 7a is an inclined surface that is inclined so as to be lowered from one end to the other end of the protrusion 7 in the girder direction. It has become. Further, the protruding amount of the protruding portion 7 is set to be a predetermined amount (strictly speaking, a protruding amount substantially the same as the protruding amount of the field edge side protruding portion 8 described later).
The upper surface 7a of the protruding portion 7 is not limited to an inclined surface, but may be a flat surface.

Further, horizontal members 4 are arranged between the field edge receivers 3, and the horizontal members 4 are provided at regular intervals in the girder direction. Then, as shown in FIG. 3, in each of the plurality of field edge receivers 3, the portion located between the horizontal members 4 (strictly speaking, the position between the two horizontal members 4 adjacent to each other in the girder direction). A plurality of protruding portions 7 are provided in a state of being arranged along the girder direction. Each of the plurality of field edge receivers 3 is installed so that the arrangement positions of the protrusions 7 in each of the plurality of field edge receivers 3 are aligned among the field edge receivers 3 in the girder direction.

More specifically, as shown in FIG. 3, a pair of projecting portions 7 at the same position in the girder direction are provided in the rectangular space V surrounded by the pair of field edge receivers 3 and the pair of horizontal members 4. There are a plurality of sets (three sets in the configuration shown in FIG. 3). Further, the interval between the protrusions 7 in the column direction is set to a constant interval. Further, as shown in FIG. 3, a plurality of the above spaces V are formed in each of the girder direction and the beam-to-beam direction, and the positions of the protrusions 7 in the space V are aligned between the spaces V. That is, the positions of the six protrusions 7 arranged in each space V with respect to the reference position (for example, the corner position of the space V) are unified among the spaces V.
The number of protrusions 7 provided in the space V and their respective arrangement positions (strictly speaking, the positions in the column direction) are not particularly limited and can be arbitrarily designed. It is desirable that it is determined according to the number and arrangement positions of the field edges 6 provided on the ceiling panel 2.

Further, in the present embodiment, each of the projecting portions 7 is formed so that the degree of inclination and the inclination direction of the inclined surface forming the upper surface 7a thereof are aligned among all the projecting portions 7.

Explaining the ceiling panel 2, as described above, a plurality of field edges 6 are attached to the upper surface of the board material 5. Then, as shown in FIG. 4, each of the plurality of field edges 6 is provided with field edge side protrusions 8 at both ends in the extending direction (that is, both ends in the beam-to-beam direction). The field edge side protrusion 8 corresponds to the base material side protrusion, and protrudes outward in the beam-to-beam direction as shown in FIG.

Explaining the shape of the field edge side protrusion 8 with reference to FIG. 8, the field edge side protrusion 8 is provided symmetrically at each of both ends of the field edge 6 in the beam-to-beam direction, and the lower surface 8b thereof is a board material. It is formed so as to float slightly from the upper surface of 5. As shown in FIG. 8, the upper surface 8a of each field edge side protrusion 8 is an inclined surface that is inclined so as to decrease toward the outside in the beam-to-beam direction (extending direction of the field edge 6). Further, the lower surface 8b of each field edge side protrusion 8 is an inclined surface as shown in FIGS. 6 and 8, and strictly speaking, the lower surface 8b is lowered from one end to the other end of the field edge side protrusion 8 in the girder direction. It is an inclined surface that is inclined like this.
The lower surface 8b of the field edge side protrusion 8 is not limited to an inclined surface, and may be a flat surface.

Then, each field edge side protrusion 8 is placed on the protrusion 7 of the field edge receiver 3 as shown in FIG. 6 when the ceiling panel 2 is supported by the field edge receiver 3. More specifically, in the present embodiment, each of the plurality of field edges 6 provided on the ceiling panel 2 enters the rectangular space V surrounded by the field edge receiver 3 and the horizontal member 4. On top of that, the field edge side projecting portions 8 forming both ends in the extending direction of each field edge 6 are placed on the projecting portions 7 of the field edge receiver 3.

More precisely, with each field edge 6 entering the space V, each of the field edge side protrusions 8 provided at both ends of the field edge 6 in the extending direction is a space as shown in FIG. Of the pair of field edge receivers 3 that are adjacent to each other across the V, they are placed on the protruding portion 7 of the field edge receiver 3 that is located closer.

Then, when the field edge side protrusion 8 is placed on the protrusion 7, the side edge portion of the board material 5 reaches a position where it is fastened to the field edge receiver 3. More specifically, as shown in FIG. 5, the side edge portion of the board material 5 projects outward from the field edge side protrusion 8 in the beam-to-beam direction. Then, as shown in the figure, when the field edge side protrusion 8 is placed on the protrusion 7, the side edge portion of the board material 5 is the field edge receiver 3 (strictly speaking, of the field edge receiver 3). It will be located directly below the portion (the portion located on the side of the protrusion 7) in the beam-to-beam direction.
By placing the field edge side protrusion 8 on the protrusion 7, the ceiling panel 2 is positioned at that time (that is, the position where the side edge portion of the board material 5 can be fastened to the field edge receiver 3). Will be held at. That is, the ceiling panel 2 can be temporarily placed by placing the field edge side protrusion 8 on the protrusion 7.

As described above, in the present embodiment, by placing the field edge side protrusion 8 on the protrusion 7, it is possible to guide the side edge portion of the board material 5 toward the fastening position. Then, after the side edge portion of the board material 5 reaches the fastening position, the side edge portion of the board material 5 (that is, the portion of the outer edge portion of the board material 5 located directly below the field edge receiver 3) becomes the field edge. It is screwed to the receiver 3. That is, the side edge portion of the board material 5 is fastened to the field edge receiver 3 outside the space V in the direction between the beams. As a result, the ceiling panel 2 is supported by a pair of field edge receivers 3 that are adjacent to each other with the space V in between.

Further, when the field edge side projecting portion 8 is placed on the projecting portion 7, as shown in FIG. 6, the front and rear edge portions (ends in the girder direction) of the outer edge portions of the board material 5 are the horizontal members 4. It will be located directly below. Then, when the side edge portion of the board material 5 is screwed to the field edge receiver 3, the front and rear edge portions of the board material 5 (that is, the outer edge portion of the board material 5 is directly below the horizontal member 4). The located portion) is screwed to the horizontal member 4.

Further, when the field edge side protrusion 8 is placed on the protrusion 7, the lower surface 8b of the field edge side protrusion 8 comes into contact with the upper surface 7a along the upper surface 7a of the protrusion 7, as shown in FIG. More specifically, the lower surface 8b of the field edge side protrusion 8 which is an inclined surface is parallel to the upper surface 7a so as to be along the upper surface 7a when the field edge side protrusion 8 is placed on the protrusion 7. (Like) is tilted. As a result, the state in which the field edge side protrusion 8 is placed on the protrusion 7 is maintained satisfactorily.

In the state where the field edge side protrusion 8 is placed on the protrusion 7 as described above, the lower surface 8b of the field edge side protrusion 8 comes into contact with the upper surface 7a along the upper surface 7a of the protrusion 7. At this time, the protruding portion 7 is in a position sandwiched between the lower surface 8b of the field edge side protruding portion 8 and the board material 5 in the vertical direction. More specifically, in the ceiling panel 2, since the lower surface 8b of the field edge side protrusion 8 and the board material 5 are separated from each other in the vertical direction, a gap is formed between them. Then, as shown in FIG. 5, the field edge side protrusion 8 is placed on the protrusion 7 so that the protrusion 7 enters the gap. As a result, the protruding portion 7 is sandwiched between the field edge side protruding portion 8 and the board material 5 in the vertical direction, and the state in which the field edge side protruding portion 8 is placed on the protruding portion 7 is maintained more satisfactorily. Is possible.

<< Construction method of ceiling 1 >>
Next, the construction method of the ceiling 1 configured as described above will be described with reference to FIGS. 9 to 14. FIG. 9 is a diagram showing a procedure of work for constructing the ceiling 1 (hereinafter, ceiling construction work). FIG. 10 is a diagram showing a state in which the ceiling panel 2 is lifted upward. FIG. 11 is a diagram showing a state in which the field edge side protrusion 8 collides with the lower corner portion of the field edge receiver 3 when the ceiling panel 2 is lifted upward. FIG. 12 is a diagram showing a state in which the ceiling panel 2 is horizontally moved with respect to the field edge receiver 3. FIG. 13 is an explanatory view of the movement of the field edge side protrusion 8 when the ceiling panel 2 is horizontally moved. FIG. 14 is a diagram showing how the outer edge portion of the board material 5 is screwed to the field edge receiver 3.

In the following, in explaining the construction method of the ceiling 1 of the present invention, the procedure of the ceiling construction work according to the present embodiment will be described. In the ceiling construction work according to the present embodiment, each step (process) shown in FIG. 9 is carried out in order. Specifically, in the ceiling construction work, first, the ceiling panel 2 formed by attaching the field edge 6 to the upper surface of the board material 5 is lifted so as to approach a plurality of field edge receivers 3 arranged above the ceiling panel 2. It starts from there (S001).

More specifically, the skeleton work is performed before the ceiling construction work, and the field edge receiver 3 and the horizontal member 4 are arranged in a grid shape in the skeleton work. That is, a plurality of field edge receivers 3 are arranged so as to be lined up at regular intervals along the beam-to-beam direction, and horizontal lumbers 4 are arranged between the field edge receivers 3 at regular intervals in the girder direction. After that, the ceiling construction work is started, and the ceiling panel 2 is lifted upward in the vertical direction by the lifter L shown in FIG. At this time, the ceiling panel 2 is lifted after adjusting the position of the ceiling panel 2 so that the ceiling panel 2 is located between the two field edge receivers 3 adjacent to each other in the beam-to-beam direction (that is, the space V).
In the present embodiment, the ceiling panel 2 is lifted by using the lifter L, but the present invention is not limited to this, and the ceiling panel 2 may be lifted manually.

When the ceiling panel 2 is lifted, the field edge 6 of the ceiling panel 2 eventually enters the space V between the field edge receivers 3. At this time, if the position of the ceiling panel 2 is slightly deviated in the beam-to-beam direction, as shown in FIG. 11, the end portion of the field edge 6 in the extending direction, that is, the upper surface 8a of the field edge side protrusion 8 is the field edge receiver 3. It comes into contact with the lower corner. Here, as described above, the upper surface 8a of the field edge side protrusion 8 is inclined so as to be lowered toward the outside in the extending direction of the field edge 6. As a result, when the ceiling panel 2 is lifted with the upper surface 8a of the field edge side protrusion 8 in contact with the lower corner portion of the field edge receiver 3, the ceiling panel 2 is brought into contact with the field edge side protrusion 8 as shown in FIG. It moves diagonally upward while being guided by the upper surface 8a of the. As a result, the ceiling panel 2 is guided to a position where the field edge 6 enters the space V between the field edge receivers 3 in the beam-to-beam direction.

When the ceiling panel 2 is further lifted, the upper surface of the board material 5 comes into contact with the lower surfaces of the field edge receiver 3 and the horizontal member 4. At this point, the position of the ceiling panel 2 is such that the field edge 6 is slightly separated from the protrusion 7 in the girder direction.

Then, the ceiling panel 2 was lifted to a position where the field edge 6 entered the space V between the field edge receivers 3 and the upper surface of the board material 5 was in contact with the lower surfaces of the field edge receiver 3 and the horizontal member 4. After that, as shown in FIG. 12, the ceiling panel 2 is horizontally moved along the column direction (S002). More specifically, in the ceiling panel 2, the field edge 6 moves from the side end surface of the field edge receiver 3 toward the projecting portion 7 (strictly speaking, the nearest projecting portion 7) protruding inward of the space V. Move horizontally. Finally, the ceiling panel 2 reaches a position where the extension direction end portion of the field edge 6, that is, the field edge side projecting portion 8 is placed on each projecting portion 7 (S003). That is, in steps S002 and S003, the ceiling panel 2 is horizontally moved so that the field edge side protrusion 8 is placed on each protrusion 7.

In the present embodiment, as described above, the upper surface 7a of the protruding portion 7 is an inclined surface. Then, with the horizontal movement of the ceiling panel 2, as shown in FIGS. 12 and 13, the field edge side protrusion 8 is the lower end (hereinafter, the lower end of the inclined surface) of the upper surface 7a which is the inclined surface. It moves in the direction toward, that is, in the direction of the arrow in the figure.

Due to the horizontal movement of the ceiling panel 2, the field edge side protrusion 8 passes the position directly above the lower end of the inclined surface, and finally rests on the upper surface 7a. Further, in the present embodiment, the lower surface 8b of the field edge side protrusion 8 is also an inclined surface. As a result, while the field edge side protrusion 8 passes directly above the protrusion 7, the distance between the lower surface 8b of the field edge side protrusion 8 and the upper surface 7a of the protrusion 7 gradually decreases, and the field edge side protrusion 8 When the 8 is placed on the protrusion 7, the lower surface 8b of the field edge side protrusion 8 comes into surface contact with the upper surface 7a along the upper surface 7a of the protrusion 7 as shown in FIG. In other words, the horizontal movement of the ceiling panel 2 causes the protrusion 7 to enter the gap between the field edge side protrusion 8 and the board material 5. As a result, the protruding portion 7 functions as a wedge, and after the protruding portion 8 on the field edge side is placed on the protruding portion 7, the state can be stably maintained.
Even if there is an error between the actual size and the design dimension in the protruding portion 7 and the field edge side protruding portion 8, the upper surface 7a of the protruding portion 7 and the lower surface 8b of the field edge side protruding portion 8 are both inclined surfaces. It is possible to absorb the above error by doing so.

By the steps up to the above, each field edge 6 enters the space V between the field edge receivers 3, and the field edge side protrusion 8 of each field edge 6 is placed on the protrusion 7. In this state, the side edge portion of the outer edge portion of the board material 5 is located directly below each of the pair of field edge receivers 3 sandwiching the space V, and the front and rear edge portions of the outer edge portion of the board material 5 Is located directly below the horizontal member 4 that connects the pair of field edge receivers 3. That is, each field edge 6 enters the space V between the field edge receivers 3, and the field edge side protrusion 8 of each field edge 6 is placed on the protrusion 7, so that the outer edge portion of the board material 5 becomes a field edge. It comes to the position where it is fastened to the receiver 3 and the horizontal member 4.
Further, the ceiling panel 2 is temporarily placed at the above position. That is, since the field edge side protrusion 8 is placed on the protrusion 7, the ceiling panel 2 is held at the above position without falling even if the ceiling panel 2 is removed from the lifter L.

The series of steps described above (that is, S001 to S003) is repeated until all of the ceiling panels 2 constituting the ceiling 1 are laid (paved). After that, using the screw driving machine J shown in FIG. 14, the screws B are driven into the outer edges of the board material 5 from below the board material 5 of each laid ceiling panel 2 (S004). As a result, the outer edge portion of the board material 5 of each ceiling panel 2 is screwed (fastened) to the field edge receiver 3 and the horizontal member 4. As a result, each ceiling panel 2 is supported by the field edge receiver 3 and the horizontal member 4.
When the above steps are completed, the ceiling construction work is completed.

As described above, in the ceiling construction work of the present embodiment, the outer edge portion of the board material 5 is screwed to the field edge receiver 3 in order to support the ceiling panel 2 to each of the plurality of field edge receivers 3. do. At this time, the ceiling panel 2 is lifted so that the field edge 6 enters the space V between the field edge receivers 3, and the ceiling panel 2 is horizontally moved so that the field edge side protrusion 8 rests on the protrusion 7. As a result, the outer edge portion of the board material 5 reaches a position where it is fastened to the field edge receiver 3 and the horizontal member 4. That is, in the ceiling construction work of the present embodiment, the outer edge portion of the board material 5 is appropriately guided to the position where it is fastened to the field edge receiver 3 and the horizontal member 4 by the above-mentioned lifting and horizontal movement of the ceiling panel 2. As a result, the ceiling panel 2 is appropriately supported by the field edge receiver 3 and the horizontal member 4.

1 Ceiling 2 Ceiling panel (ceiling material)
3 Field edge holder (support member)
4 Horizontal material 5 Board material 6 Field edge (base material)
7 Protruding part 7a Top surface 8 No edge side protruding part (base material side protruding part)
8a Top surface 8b Bottom surface B Screw J Screw driving machine L Lifter V Space

Claims (10)

A ceiling material having a board material and a base material attached to the upper surface of the board material,
A plurality of support members are provided side by side, and a support member to which an outer edge portion of the board material is fastened to support the ceiling material is provided.
The support member has a protrusion that projects toward the space between the support members.
The outer edge portion of the board material is fastened to the support member by entering the base material into the space and placing the end portion of the base material in the extending direction of the base material on the protruding portion. The ceiling of the building is characterized by reaching its position. The end portion of the base material in the extension direction is a base material side protrusion that protrudes outward in the extension direction.
The ceiling of a building according to claim 1, wherein the upper surface of the base material side protruding portion is an inclined surface that is inclined so as to be lowered toward the outside in the extending direction. The support member is composed of a long body and has a long body.
The upper surface of the protrusion is an inclined surface that is inclined so as to be lowered from one end to the other end of the protrusion in the longitudinal direction of the support member.
2. The lower surface of the base material side projecting portion is an inclined surface that is inclined along the upper surface of the projecting portion when the base material side projecting portion is placed on the upper surface of the projecting portion. The ceiling of the building described in. Each of the plurality of support members is provided with a plurality of the protrusions arranged along the longitudinal direction.
According to claim 3, each of the plurality of support members is installed so that the arrangement positions of the protrusions in each of the plurality of support members are aligned between the support members in the longitudinal direction. The ceiling of the listed building. Each of both ends of the base material in the extending direction is a protrusion on the base material side.
The fourth aspect of claim 4, wherein each of the base material side protrusions is placed on the protrusion of the support member located closer to the pair of support members adjacent to each other with the space in between. Building ceiling. A plurality of the base materials are provided on the upper surface of the board material in a state of being arranged in a direction intersecting the extending direction.
The ceiling of a building according to claim 4 or 5, wherein the end portion of each of the plurality of base materials in the extending direction is the base material side projecting portion. The outer edge portion of the board material projects outward from the end portion of the base material in the extending direction, and is fastened to the support member outside the space in the extending direction. The ceiling of the building according to any one of items 1 to 6. It has a horizontal member that is arranged between the support members and connects the support members to each other.
Of the outer edge portion of the board material, a portion located directly below the support member is fastened to the support member, and a portion located directly below the horizontal member is fastened to the horizontal member. The ceiling of the building according to any one of claims 1 to 7. In a state where the end portion of the base material in the extending direction is placed on the protruding portion, the protruding portion is located between the end portion of the base material in the extending direction and the board material in the vertical direction. The ceiling of a building according to any one of claims 1 to 8, wherein the ceiling is located at a sandwiched position. A step of lifting a ceiling material having a board material and a base material attached to the upper surface of the board material so as to approach a plurality of support members provided side by side in order to support the ceiling material.
After lifting the ceiling material to a position where the base material enters the space between the support members, the base material in the extending direction of the base material is placed on the protruding portion of the support member protruding toward the space. The process of horizontally moving the ceiling material so that the end of the
The base material enters the space, and the end portion of the base material in the extending direction is placed on the protrusion, so that the outer edge portion of the board material is fastened to the support member. After that, a step of fastening the outer edge portion of the board material to the support member to support the ceiling material by the support member, and
A method of constructing a ceiling of a building, which is characterized by having.

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