JP2019196653A - Wall surface structure - Google Patents

Abstract

To provide a wall surface structure cable of satisfying required fire resistance efficiency, while preventing generation of crack and wrinkle of an interior decorative material.SOLUTION: A wooden wall surface structure 1 comprises: a plurality of underlayer boards 2 whose side faces are respectively abutted; a plurality of top layer boards 3 stacked on the underlayer boards 2 and fixed; interior decorative materials 4 stuck to the top layer boards 3; a joint member 6 inserted into a joint clearance 5 formed between the top layer boards 3 adjacent to each other and divided into two each of which respectively fixes a side end edge of the interior decorative material 4 stuck to the top layer board 3 at both sides; and a joint back board 7 provided in a state stacked to an inside of a wall of the underlayer boards 2 at a position overlapping with the joint clearance 5 between the top layer boards 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wall surface structure to which an interior decorative material is attached, and more particularly to a wall surface structure that prevents the interior decorative material from being cracked or wrinkled by vibrations applied to a building.

  Conventionally, as an interior wall surface structure, a joint gap is provided between adjacent base boards, and a long member made of two divided bodies is inserted into the joint gap, so that the relative displacement between the adjacent base boards is Has been proposed (Patent Document 1). In this structure, the side edges of the interior decorative material respectively affixed to adjacent baseboards are fixed to different divided bodies.

  By configuring in this way, the displacement between interior decorative materials can be absorbed by this joint gap, and the occurrence of cracks and wrinkles in the interior decorative material due to vibration applied to the building is suppressed. Yes.

JP-A-9-228606

  By the way, specified fireproof performance is required for the partition walls, which are important for fire prevention in the boundary walls of apartment buildings and buildings for specific purposes. For example, by placing double gypsum boards as base boards, this fireproof performance. May be satisfied.

  However, when a joint gap is provided between adjacent base boards as described above, the fire resistance performance of the portion where the joint gap is provided may be reduced, and the required fire resistance performance may not be satisfied.

  Then, an object of this invention is to provide the wall surface structure which can satisfy | fill the required fireproof performance, preventing the generation | occurrence | production of the crack and wrinkle of interior decoration material.

  The wall surface structure of the present invention is adjacent to a plurality of underboards whose side surfaces abut each other, a plurality of upper boards that are fixed to be overlaid on the underboard, and an interior decorative material that is affixed to the upper board. A joint member divided into two parts, which is inserted into a joint gap formed between the upper boards and is fixed to the side edges of the interior decorative material attached to the upper boards on both sides, And a joint back board that is provided so as to overlap with the joint gap between the upper boards and is provided on the inner side of the wall of the lower boards.

  The wall surface structure of the present invention further includes a pair of base studs respectively provided on both sides of the joint gap, and a butt portion between side surfaces of the adjacent underboards is disposed at a position overlapping the joint gap, The board and the underboard are fixed to the outer surface of the base stud wall, and the joint boat is fixed between the base stud independently of the upper board and the underboard. It is a feature.

  The wall surface structure of the present invention is characterized in that the joint gap into which the joint member is inserted is formed above and / or below a side edge of an opening provided in the wall surface structure.

  The wall surface structure of the present invention is characterized in that the joint gap into which the joint member is inserted is provided at a position within 500 mm in the in-plane direction from the side edge of the opening provided in the wall structure.

  In the wall surface structure of the present invention, the joint gap into which the joint member is inserted is further provided at a position at an equal interval less than the predetermined distance of the non-opening wall portion where the opening is not provided more than a predetermined distance. It is characterized by.

  According to the wall surface structure of the present invention, the underboard and the upper board are disposed so as to overlap each other, and the joint member divided into two is inserted into the joint gap formed between the upper boards adjacent to each other. Since the joint member fixes the side edges of the interior decorative material affixed to the upper board on both sides, the interior decoration produced by the mutual displacement of the adjacent upper boards The displacement between the materials can be absorbed by the joint gap, and the occurrence of cracks and wrinkles in the interior decorative material due to vibrations applied to the building can be suppressed. And since an underlay board and a joint back board are arrange | positioned twice inside the wall of a joint gap, the performance requested | required of the board | plate material used as the foundation | substrate of an interior decorative material can be satisfy | filled.

  According to the wall structure of the present invention, the underboard is disposed at a position where the butted portion overlaps the joint gap, so that vibration applied to the upper board and the underboard can be absorbed at the joint gap. And since the joint back board is fixed between the base studs independently of the upper board and the lower board, it does not follow the displacement of the upper boards or between the lower boards, and the joint board is excessive. Application of a load can be suppressed.

  According to the wall surface structure of the present invention, the side edge of the opening provided in the wall surface structure is a portion in which the cross section of the upper board and the lower board constituting the wall surface structure is reduced, so that the load applied to the wall surface structure is concentrated It is. The opening is also a place where impact is easily applied by opening and closing the joinery. Therefore, since the side edge of the opening is a place where cracks and wrinkles are likely to occur in the interior decorative material, a joint gap is provided above and / or below the opening to absorb the displacement of the upper board and the interior decorative material. By doing so, it is possible to effectively suppress the occurrence of cracks and wrinkles in the interior decorative material.

  According to the wall surface structure of the present invention, as described above, the joint board is provided with a joint gap at a position within 500 mm in the in-plane direction from the side edge of the opening, which is where the load applied to the wall surface structure is likely to concentrate. By absorbing the displacement of the material, it is possible to suppress the load from being concentrated in the vicinity of the opening, and it is possible to effectively suppress the occurrence of cracks and wrinkles in the interior decorative material.

  According to the wall surface structure of the present invention, as described above, the joint gap is provided in the vicinity of the opening portion to absorb the load applied to the wall surface structure, but such an opening portion is not provided with a predetermined distance or more. In addition, by providing joint gaps at equal intervals less than a predetermined distance, it is possible to suppress the occurrence of cracks and wrinkles in the interior decorative material in the non-opening wall surface.

The perspective view explaining the external appearance structure of a wall surface structure. Sectional view and enlarged view for explaining the overall structure of the wall surface structure The perspective view explaining the structure of a joint member. The perspective view explaining the state which fixed the metal fitting to the base stud. The perspective view explaining the state which fixed the joint back board between a pair of base studs. Sectional drawing explaining the state which fixed the joint back board between a pair of base studs. The perspective view explaining the state which fixed the underlay board to the base stud. The perspective view explaining the state which fixed the upper board to the base stud. Sectional drawing explaining the state which fixed the upper board to the base stud. The perspective view explaining the state which inserted the joint member in the joint gap. FIG. 3 is a partially omitted floor plan illustrating a position where a joint gap is formed. The front view explaining the state which forms a joint gap in the vicinity of an opening part.

  Hereinafter, embodiments of the wall surface structure 1 according to the present invention will be described with reference to the drawings. The wall surface structure 1 of the present embodiment is a wall surface structure for partitioning an indoor space, a partition wall, or a fire prevention compartment, and is required to have a fireproof performance required by providing double a plate material as a base for the interior decorative material 4. It is the wall surface structure 1 which satisfy | fills. As shown in FIGS. 1 and 2, the wall surface structure 1 is affixed to a plurality of underboards 2 whose side surfaces are abutted with each other, a plurality of upholstery boards 3 that are fixed to the underboard 2, and an upper board 3. The interior decorative material 4 to be attached, the joint member 6 inserted into the joint gap 5 formed between the upper board 3 adjacent to each other, and the inside of the wall of the lower board 2 at a position overlapping the joint gap 5. A joint board 7, a fixing bracket 8 that fixes the joint board 7, an upper board 3, an underboard 2, and a base stud 9 that supports the joint board 7. In the present embodiment, “inside the wall” refers to a direction toward the inside of the wall in the out-of-plane direction of the wall surface structure 1, and “outside of the wall” refers to the outside of the wall in the out-of-plane direction of the wall surface structure 1. The direction to go.

  The lower board 2, the upper board 3, and the joint board 7 are gypsum boards having the same thickness and the same performance. The lower board 2, the upper board 3, and the joint board 7 are configured to satisfy the fire resistance required when they are arranged in a double layer. The underboard 2, the upper board 3, and the joint back board 7 are not limited to the gypsum board, and may be any material recognized as a material that can satisfy the fire resistance performance. The interior decorative material 4 is an interior cloth that is attached to the outer surface of the upper board 3 with putty.

  The underlay board 2 is a flat plate having a height capable of partitioning a space from the floor surface to the ceiling or shed. The width of the underlay board 2 is, for example, about 2500 mm, but the length in the width direction is adjusted by cutting according to the fit. Adjacent underboards 2 are arranged with no gaps so that the side surfaces abut each other. The upper board 3 is formed at the same height as the lower board 2 and has the same width as the lower board 2 and is cut according to the accommodation to adjust the length in the width direction. The upper board 3 forms a joint gap 5 between the adjacent upper boards 3 according to a predetermined rule, and the side faces of the upper boards 3 are brought into contact with each other at a position where the joint gap 5 is not formed. It is arranged without. The joint gap 5 has a width of 13 mm to 14 mm and a depth corresponding to the thickness of the upper board 3. The butting portion 10 of the underboard 2 is disposed inside the wall of the joint gap 5. The joint back board 7 is a flat plate having the same height as the lower board 2 and the upper board 3 and a width of about 500 mm, and is placed between the base studs 9 on both sides. The joint back board 7 is arranged only at a position overlapping the inside of the wall of the joint gap 5 and is not arranged in other portions.

  The fixing bracket 8 is a bracket for fixing the joint back board 7 to the base stud 9 and is formed by bending a flat plate into a Z-shape. The base stud 9 is fixed to two runners (not shown) arranged above and below, and extends from the floor surface to the ceiling or the back of the cabin. The base studs 9 are a pair of steel studs standing on the both sides of the joint gap 5 inside the wall of the underboard 2. A plurality of fixtures 8 are fixed to each base stud 9 at a pitch of 500 mm, for example. The fixing bracket 8 is a fixed portion 11 that is fixed in contact with the outer surface of each base stud 9, and a connection that extends from the side edge of the fixed portion 11 toward the adjacent base stud 9 toward the inside of the wall. Part 12 and a board receiving part 13 extending from the inner edge of the connecting part 12 toward the adjacent base stud 9 side. The board receiving portion 13 is disposed on the inner side of the wall by the thickness of the joint backing board 7 than the fixed portion 11. When the joint backing board 7 is disposed between the pair of base studs 9, The board receiving part 13 can receive the surface inside the wall.

  The joint member 6 is made of a long resinous flexible material inserted into a joint gap 5 formed between adjacent upper boats. As shown in FIG. 3, the joint member 6 is formed to be separable into two divided bodies, a first divided body 14 and a second divided body 15. The first divided body 14 is fixed to the one upper board 3, and includes a first front plate portion 16 that abuts against a wall outer surface of the first upper board 3, and the first front plate portion 16. A flat plate-like extension portion 17 extending substantially vertically from the edge along the side surface of the upper board 3, and substantially parallel to the first front plate portion 16 from the inner end of the extension portion 17 on the wall. The first front plate portion 16 and the back plate portion 18 extending in the reverse direction are provided.

  Further, the second divided body 15 covers a part of the joint gap 5 from the edge of the second front plate portion 19 and the second front plate portion 19 that contacts the outer surface of the other upper board 3. And a square cylindrical tube portion 20 which is inserted into the joint gap 5 and abuts against the back plate portion 18. The back plate portion 18 and the cylinder portion 20 are not fixed to each other, and the first divided body 14 and the second divided body 15 can move relative to each other. A gap is provided between the extending portion 17 of the first divided body 14 and the cylindrical portion 20 of the second divided body 15. A large number of putty holes are formed in each of the first front plate portion 16 and the second front plate portion 19, and the putty is put into the putty holes when the interior decorative material 4 is attached, so that the upper board 3 and the joint are joined. The member 6 and the interior decorative material 4 are fixed integrally.

  The interior decorative material 4 attached to the outer wall of the one upper board 3 is fixed to the first front plate portion 16 of the first divided body 14 and bent, and the edge of the interior decorative material 4 extends to the extended portion 17. And is inserted into a gap between the extension portion 17 and the cylindrical portion 20. In addition, the interior decorative material 4 attached to the outside of the wall of the other upper board 3 is fixed to the second front plate portion 19 and the tube portion 20 of the second divided body 15 and bent, and the interior decorative material 4 The end edge is inserted into the gap between the extending portion 17 and the cylindrical portion 20 while being fixed to the cylindrical portion 20.

  When constructing the wall surface structure 1 configured as described above, first, the upper and lower ends of the base stud 9 are respectively fixed to runner materials (not shown) arranged horizontally on the floor surface and the ceiling or shed. Thus, a pair of base studs 9 are erected. Then, as shown in FIG. 4, the fixture 8 is arranged at a predetermined pitch on the fixed pair of base studs 9, and the fixing portion 11 of the fixture 8 is fixed to the base stud 9 with the fixture fixing screw 21.

  Then, as shown in FIGS. 5 and 6, the joint back board 7 is inserted between the base studs 9 and fixed to the board receiving portion 13 of the fixing bracket 8 with joint joint board fixing screws 22. The joint back board 7 is disposed between the pair of base studs 9, and is arranged so that the outer surface of the base stud 9 and the outer wall of the joint back board 7 are substantially flush with each other. Then, as shown in FIG. 7, the underboard 2 is fixed to the outer surface of the base stud 9 with an underboard fixing screw 23. The underboard 2 is arranged such that the butted portion 10 formed by abutting the side surfaces of the adjacent underboards 2 is the center in the width direction of the joint backing board 7.

  Next, as shown in FIGS. 8 and 9, the upper board 3 is fixed to the outer surface of the lower board 2. The upper board 3 is fixed by an upper board fixing screw 24 that passes through the lower board 2 and is screwed to the base stud 9. The upper board 3 is arranged so that the joint gap 5 is formed on the outside of the wall of the abutting portion 10 of the lower board 2. Thus, the upper board 3 and the lower board 2 are integrally displaced by being fixed to the base stud 9 by the upper board fixing screws 24 penetrating the lower board 2. Since the back board 7 is fixed to the base stud 9 via the fixing bracket 8 independently of the upper board and the lower board 2, it does not follow the displacement of the upper board 3 and the lower board 2. It is possible to suppress an excessive load from being applied to the joint back board 7.

  Then, as shown in FIGS. 8 and 10, the joint member 6 composed of the two divided bodies of the first divided body 14 and the second divided body 15 is inserted into the joint gap 5 formed between the upper boards 3. . First, in the first divided body 14, the angle between the outer surface of the upper board 3 and the surface on the joint gap 5 side adjacent to each other with the first front plate portion 16 and the extension portion 17 sandwiching the joint gap 5. The back plate portion 18 is fixed so as to be disposed in the joint gap 5. Then, the second divided body 15 is disposed so that the second front plate portion 19 and the cylindrical portion 20 are in contact with the corners of the surface on the other side of the upper board 3 and the surface on the joint gap 5 side, It arrange | positions so that the cylinder part 20 of the 2nd division 15 may contact | abut to the backplate part 18 of the 1st division 14 in the joint gap 5. FIG. And as shown in FIG.1 and FIG.2, the interior decoration material 4 is affixed on the surface of the wall outside of the upper board 3.

  The interior decorative material 4 that is attached to the outer surface of the upper board 3 is attached to the first front plate portion 16 and bent, and the extension portion 17 and the cylindrical portion 20 are connected to each other. It is affixed on the extension part 17 between. Further, the interior decorative material 4 that is affixed to the outer wall surface of the other upper board 3 has an end portion affixed to the second front plate part 19, and is between the extension part 17 and the cylinder part 20. Is pasted on the cylindrical portion 20. In this way, the interior decorative material 4 attached to one upper boat with the joint gap 5 interposed therebetween and the interior decorative material 4 attached to the other upper board 3 are not connected to each other. 5, the displacement of the interior decorative material 4 can be absorbed, and cracks and wrinkles of the interior decorative material 4 can be suppressed. And since the lower board 2 and the joint back board 7 will be arrange | positioned double inside the wall of the joint gap 5 formed between the upper boards 3, the fireproof performance required for the wall surface structure 1 The displacement of the interior decorative material 4 and the upper board 3 can be absorbed without lowering.

  The joint member 6 as described above is inserted and the joint gap 5 for absorbing the displacement of the interior decorative material 4 and the upper board 3 is provided above the side edge of the opening 25 provided in the wall surface structure 1 and / or Or it is preferable that it is below. For example, as shown in FIG. 12A, when the opening 25 is a door, it is preferable that the joint gap 5 is formed above the side edge of the door. The upper or lower portion of the opening 25 is easily subjected to an impact by opening and closing a door and other fittings, and the cross section of the upper board 3 and the lower board 2 constituting the wall surface structure 1 is small. This is a location where loads applied to the upper board 3, the lower board 2 and the interior decorative material 4 are likely to concentrate. Therefore, by providing the joint gap 5 capable of absorbing the displacement of the upper board 3, the lower board 2, and the interior decorative material 4 at such a location, it is possible to prevent the interior decorative material 4 from being cracked or wrinkled. . The opening 25 in FIG. 12A is a door that opens up to a predetermined range upward from the floor surface. Therefore, the joint gap 5 is formed only above the side edge of the opening 25. When the portion 25 is the opening 25 provided at a position higher than the floor surface such as an indoor window, the joint gap 5 is preferably provided above and below the side edge of the opening 25.

  Note that the position where the joint gap 5 is formed is not limited to this. For example, as shown in FIG. 12B, the joint gap 5 is within 500 mm from the side edge of the opening 25 in the in-plane direction of the wall surface structure 1. It may be provided at a position. That is, if the joint gap 5 is formed within 500 mm from the side edge of the opening 25, the joint part 5 absorbs the displacement of the upper board 3, the lower board 2, and the interior decorative material 4, thereby opening the opening part. It is possible to prevent an excessive load from being concentrated on the side edge of 25, and to prevent the interior decorative material 4 from being cracked or wrinkled. In FIG. 12B, the joint gap 5 is formed above one of the side edges of the opening 25, and the joint gap 5 is formed at a position 300 mm from the other side edge. The position of the joint gap 5 is not limited to this, and the joint gap 5 may be provided at a position separated from the opening 25 within 500 mm from both side edges of the opening 25.

  Further, the joint gap 5 is not limited to the one provided close to the opening 25 as described above. For example, as shown in FIG. It is preferable to be provided at an equal interval of less than. For example, the predetermined distance is 6 m. In this case, the non-opening wall surface portion 26 is a place where the wall surface structure 1 is formed with 6 m or more and the wall surface structure 1 is not provided with the opening portion 25 with 6 m or more. And the joint clearance 5 is formed in the non-opening wall surface part 26 at equal intervals of less than 6 m. That is, when the non-opening wall surface portion 26 is 6 m, the joint gap 5 is formed at a position of 3 m serving as a center line. Moreover, when the non-opening wall surface part 26 is 12 m, the two joint gaps 5 are formed at an equal interval of 4 m that is less than 6 m. In this way, even in a location where the opening 25 is not provided, at the position where the long wall surface structure 1 of a predetermined distance or more is provided, the displacement of the upper board 3 is increased, and the interior decorative material 4 is cracked. Since wrinkles are likely to occur, a joint gap 5 is also provided in such a non-opening wall portion 26 to absorb the displacement of the upper board 3 and the interior decorative material 4, so that cracks and wrinkles in the interior decorative material 4 can be obtained. Generation can be suppressed. The predetermined distance is not limited to 6 m, and an appropriate distance may be set in consideration of the possibility of cracks and wrinkles in the interior decorative material 4 and the cost of forming the joint gap 5.

  As described above, according to the wall surface structure 1 of the present embodiment, the joint gap 5 absorbs the displacement of the upper board 3 and the interior decorative material 4 and suppresses cracks and wrinkles of the interior decorative material 4 and By configuring the inner wall of the double wall with the underboard board 2 and the joint back board 7, it is possible to prevent a decrease in fire resistance.

  It goes without saying that the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The wall surface structure 1 according to the present invention is suitable, for example, as the wall structure 1 of an indoor wall that requires fire resistance such as a boundary wall of an apartment house.

DESCRIPTION OF SYMBOLS 1 Wall surface structure 2 Underlay board 3 Upper board 4 Interior decoration material 5 Joint space | gap 6 Joint member 7 Joint back board 25 Opening part 26 Non-opening wall part

Claims (5)

A plurality of underboards whose sides are butted together,
A plurality of upper boards that are fixed over the underboards;
An interior decorative material to be affixed to the upper board;
Inserted into a joint gap formed between the upper boards adjacent to each other and divided into two joints for fixing the side edges of the interior decorative material attached to the upper boards on both sides, respectively. Members,
A joint back board which is located at a position overlapping with the joint gap between the upper boards, and is provided to be overlapped with the inner wall of the lower board;
A wall surface structure comprising: A pair of base studs provided on both sides of the joint gap,
At the position overlapping the joint gap, a butt portion between the side surfaces of the adjacent underboards is disposed,
The upper board and the lower board are fixed to the outer surface of the base stud wall,
The wall structure according to claim 1, wherein the joint boat is fixed between the base studs independently of the upper board and the lower board.   The wall surface structure according to claim 1 or 2, wherein the joint gap into which the joint member is inserted is formed above and / or below a side edge of an opening provided in the wall surface structure. .   The joint gap in which the joint member is inserted is provided at a position within 500 mm in the in-plane direction from the side edge of the opening provided in the wall surface structure. Wall structure.   The joint gap into which the joint member is inserted is further provided at a position of an equal interval less than the predetermined distance of a non-opening wall surface where the opening is not provided more than a predetermined distance. Or the wall surface structure of Claim 4.

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