JPH09228606A - Interior finish structure and member for interior finish structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure, in which deformation caused in a foundation board can be prevented even when vibrational force is applied by an earthquake, etc., and a member for the structure. SOLUTION: A clearance 16 is formed between adjacent foundation boards 12, 13 while a member 18 for an interior finish structure covering a building frame 11 under the state, in which the change of the clearance of the mutual foundation boards 12, 13 is permitted, is installed into the clearance 16. Accordingly, even when vibrational force by an earthquake, etc., is applied, the adjacent foundation boards 12, 13 mutually have effects because the mutual foundation boards can be vibrated approximately irrelevantly by the clearance 16 and the member 18 for interior finish structure mounted into the clearance 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior structure and an interior structure member capable of preventing a base board from waviness or cracking due to vibrations caused by an earthquake or the like.

[0002]

2. Description of the Related Art Conventionally, as an interior structure such as a wall structure or a ceiling structure in which a plurality of base boards are fixed to a skeleton,
Adopting a structure in which adjacent base boards are abutted with each other without a gap and fixed to the body with nails, etc. It has been subjected.

[0003]

However, in the structure in which the adjacent baseboards are fixed to each other in a butt state without a gap as described above, there is no escape when vibration force is applied due to an earthquake or the like. For this reason, adjacent base boards exert a vibration force on each other, resulting in deformation such as waviness or cracking. Further, the cloth attached may float or be streaked due to such deformation of the base board.

Therefore, an object of the present invention is to provide an interior structure and an interior structure member capable of preventing the deformation of the base board when a vibration force is applied due to an earthquake or the like.

[0005]

In order to achieve the above object, the interior structure according to claim 1 of the present invention is an interior structure in which a plurality of base boards are fixed to a frame, and a gap is provided between adjacent base boards. Is provided, and an interior structural member that covers the skeleton is fixed to the gap while allowing the gap between the base boards to be changed.

The interior structure according to claim 2 of the present invention relates to the interior structure according to claim 1, wherein the adjacent base boards are arranged on substantially the same plane, and the interior structure member is the adjacent base boards. And a pair of divided bodies that are fixed to the mutually adjacent sides, respectively, and each of the pair of divided bodies is provided with an extending portion that extends so as to overlap each other in the direction of the other divided body. There is.

The interior structure according to claim 3 of the present invention relates to the interior structure according to claim 2, wherein one of the divided bodies is fixed to one of the front sides of the adjacent base boards and the adjacent base boards of the adjacent base boards. It has a front plate portion including the extending portion extending toward the other side, the other of the divided body, a front plate portion fixed to the other front side of the adjacent base board,
The extension part is provided at a position closer to the body than the front plate part and extends toward one side of the adjacent base board, and a joint is formed between the both front plate parts. It is characterized by

The interior structure according to claim 4 of the present invention relates to the interior structure according to claim 1, wherein the adjacent base boards are arranged so as to be substantially orthogonal to each other, and the interior structure members are adjacent to each other. It is characterized in that it has a flexible deformable portion which is fixed to one of the base boards in the vicinity of the other and extends in the direction of the other base board so as to come into contact with the other base board.

The interior structure according to claim 5 of the present invention relates to the interior structure according to claim 4, wherein the member for interior structure has a front plate portion fixed to one front side of the adjacent base boards. The deformed portion is provided at a position recessed from the front plate portion by one step, and a joint is formed between the front plate portion and the other of the adjacent base boards.

According to the above-mentioned interior structure according to the first to fifth aspects of the present invention, even when a vibration force due to an earthquake or the like is applied, the joints and the members for the interior structure provided at the joints adjoin adjacent bases. Since the boards can vibrate substantially independently of each other, they do not exert vibrating forces on each other. Moreover, even if a gap is provided between the base boards, the body is not seen by the interior structural member.

The internal structure member according to claim 6 of the present invention is used for an internal structure in which adjacent base boards are fixed to a frame body with a gap therebetween to provide a joint therebetween, It is characterized in that the frame of the joint is covered in a state in which a change in the gap between the adjacent base boards forming the joint is allowed.

The member for interior structure according to claim 7 of the present invention relates to the member according to claim 6, which is used for an interior structure in which the adjacent base boards are arranged on substantially the same plane. Each of the pair of divided bodies is formed with a pair of divided bodies that are fixed on the mutually adjacent sides of adjacent base boards, and each of the pair of divided bodies is provided with an extending portion that extends so as to overlap with each other in the direction of the other divided body. It is characterized by that.

The member for interior structure according to claim 8 of the present invention relates to the member according to claim 7, wherein one of the divided bodies is
It has a front plate part that is fixed to one front side of the adjacent base boards and includes the extension part that extends toward the other side of the adjacent base boards, and the other of the divided bodies is It is characterized in that it has a front plate portion fixed to the other front side of the adjacent base boards, and that the extending portion is provided so as to be displaced from the front plate portion toward the skeleton side.

An inner structure member according to a ninth aspect of the present invention relates to the inner structure member according to the sixth aspect, which is used for an inner structure in which the adjacent base boards are arranged so as to be substantially orthogonal to each other. Is fixed to the other adjacent side of the adjacent base boards, and has a flexible deformable portion that extends in the direction of the other base board and comes into contact with the other base board.

An inner structure member according to a tenth aspect of the present invention relates to the inner structure member according to the ninth aspect, which has a front plate portion fixed to one front side of the adjacent base boards, and the deformable portion. Is characterized in that it is provided at a position recessed from the front plate portion by one step.

According to the above-mentioned interior structural member of the present invention, even when a vibration force due to an earthquake or the like is applied, the interior structural member is substantially independent of adjacent base boards. Since it is possible to vibrate, adjacent base boards do not exert a vibration force on each other. Moreover, even if a gap is provided between the base boards, the skeleton will not be visible.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an example in which the interior structure of the first embodiment is applied to a wall structure, and reference numeral 11 in the drawing denotes a surface portion 11a having a flat front side (room side).
The frame made of concrete, etc.
3 is a pair of adjacent base boards of the same thickness fixed to the surface portion 11a of the body 11, and reference numerals 14 and 15 are the body 11
Adhesive for fixing each base board 12, 13 to
Each is shown. The base boards 12 and 13 are
This is a general one in which a shape of a hexahedron (that is, a rectangular parallelepiped) in which all the adjacent surface portions are orthogonal to each other.

Both base boards 12 and 13 have side faces (opposing faces) 12 which are spaced from each other and face each other.
a and 13a are fixed to the surface portion 11a of the skeleton 11 in a state where they are arranged in parallel with each other, so that they are arranged on substantially the same plane and a gap or joint between the side surfaces 12a and 13a (hereinafter referred to as a board joint). 16 are formed.

The board joint 16 is provided with a joint forming member (interior structural member) 18 for covering the skeleton 11 while allowing the change of the board joint 16, that is, the change of the gap between the base boards 12 and 13. . This joint forming member 18
Is composed of a pair of divided bodies 19 and 20 made of a flexible material such as synthetic resin, which are fixed to the base boards 12 and 13 on the side of mutual proximity.

One of the divided members 19 is one of the base boards 1
As shown in FIG. 2 and the like, a flat plate-like front plate portion 22 having a gradually changing thickness such that one end side is thin and the other end side is thick, A flat plate-like plate portion 23 extending from the other end side to be substantially perpendicular to the front plate portion 22.
A plate-like plate portion 24 that extends substantially in parallel with the front plate portion 22 from the extending end of the plate portion 23 and extends in the direction of the front plate portion 22 shorter than the front plate portion 22, and the plate portion 24. From the extending end of the plate portion 24
Has a flat plate-like locking plate portion 25 that extends substantially in the direction opposite to the front plate portion 22 and that is perpendicular to the length direction (direction orthogonal to the paper surface in the drawing). The surface shape is constant. In addition, the plate portion 2 of the front plate portion 22
A large number of through holes 26 are formed in an aligned state on the side opposite to 3.

The split body 19 has a locking plate portion 25.
The front plate portion 22 is fixed to the front side of the base board 12 by adhesion or the like in a state where the front plate portion 22 is brought into contact with the side surface 12a. In this state, a part of the front plate portion 22 on the plate portion 23 side is the other side. The extension portion 27 extends to the base board 13 side, that is, the other divided body 20 side.

The other divided body 20 is the other base board 1
As shown in FIG. 3 and the like, a flat plate-like front plate portion 29 whose thickness is gradually changed so that one end side becomes thin and the other end side becomes thick, A flat plate-like plate portion 30 extending from the other end side to be substantially perpendicular to the front plate portion 29 and extending by about the thickness of the base board 13, and a substantially parallel plate with the front plate portion 29 from an intermediate position of extension of the plate portion 30. And a flat plate-shaped extending plate part 31 extending in the opposite direction to the surface plate part 29, and a cut surface shape orthogonal to the length direction (direction orthogonal to the paper surface in the drawing). Has a uniform shape. Further, on the side opposite to the plate portion 30 of the front plate portion 29, a large number of through holes 3 are formed.
2 are formed in an aligned state.

The split body 20 has an extension plate portion 31.
Is superposed on the extension portion 27 of the front plate portion 22 of the split body 19 and the plate portion 24 parallel to this, and the front plate portion 29 is slightly (for example, about 3 mm) with respect to the front plate portion 22 of the split body 19. It will be fixed to the front side of the foundation board 13 by adhesion or the like with a gap provided, and in this state, the extension plate portion 31 is displaced to the side of the skeleton 11 and the side of the foundation board 12 or the divided body 19 direction. It becomes an extension part that extends to. The gap between the extending plate portion 31 and the plate portion 24 of the divided body 19 is minute.

In addition, as described above, each base board 1
In a state where the divided bodies 19 and 20 are fixed to the divided bodies 2 and 13, joints (member joints) are provided between the front plate portion 22 and the plate portion 23 of the divided body 19 and the surface portion 29 and the plate portion 30 of the divided body 20. Will be referred to hereinafter) 34 will be formed.

Then, putty 35 is applied from the front plate portion 22 of the divided body 19 fixed to the base board 12 to the surface 12b of the base board 12, and similarly, from the front plate portion 29 of the divided body 20 to the base. The putty 36 is applied to the surface 13b of the board 13. Furthermore, base board 1
2 and putty 35 on the front side and base board 13 and putty 36 on the front side, crosses 37 and 38 are attached, and the ends of these crosses 37 and 38 on the close side are wound around member joint 34 together. It is contained.

The joint forming member 18 is the divided body 1
Since 9 and 20 are only partially overlapped with each other in a non-bonded state, the divided bodies 19 and 20 can be easily moved in the mutually separated direction, and these are made of a flexible material. Therefore, the elastic deformation facilitates the movement in the mutually close direction.

Next, the construction of the above interior structure will be described. As shown in FIG. 4, the adhesives 14 and 15 are applied to appropriate positions on the surface portion 11a of the skeleton 11, and the base boards 12 and 13 are adhered to the skeleton 11 in a state of being abutted with each other without providing a gap between them. It is pressed against the agents 14 and 15 to be stuck and fixed.

Next, as shown in FIG. 5, the base board 1
The abutting portions of 2 and 13 are cut perpendicularly to the surface portion 11a so as to form side surfaces 12a and 13a that are substantially parallel to each other with a predetermined distance therebetween. This allows side 1
A board joint 16 is formed between 2a and 13a.

Then, as shown in FIG. 6, in a state where the divided body 19 is in contact with the base board 12 and the locking plate portion 25 is in contact with the side surface 12a, it is applied between the front plate portion 22 and the base board 12. The divided body 20 is temporarily adhered to the base board 13 with the adhesive applied between the front plate portion 29 and the base board 13 while being bonded with the adhesive.

Here, the divided body 20 is slid in the direction of the divided body 19 as shown in FIG. The plate portion 24 and the front plate portion 22 are made to penetrate into the surface portion 11a side.
And the gap between the front plate portion 29 and the plate portion 30 and the front plate portion 22 and the plate portion 23 of the split body 19, that is, the member joint 34 is adjusted to about 3 mm.

Next, with the divided bodies 19 and 20 fixed to the base boards 12 and 13, respectively, as shown in FIG. 8, a putty 35 extends from the front plate portion 22 of the divided body 19 to the surface 12b of the base board 12. The putty 36 is applied from the front plate portion 29 of the divided body 20 to the surface 13b of the base board 13 to smooth the surface.

Then, as shown in FIG. 1, the base board 1
2 and putty 35 on the surface of the cloth 37, the base board 1
The cloth 38 is attached to the surfaces of the putty 3 and the putty 36, respectively. In addition, as for the processing of the ends of the crosses 37 and 38 on the close side, the cloth 37 is aligned with the end of the front plate part 22 on the member joint 34 side, and the cross 38 is attached to the end part of the front plate part 29 on the member joint 34 side. According to the above, each may be cut. Further, instead of attaching the cloths 37 and 38, painting may be performed.

According to the first embodiment described above,
Board joints 1 even when vibration force is applied due to an earthquake
6 and the joint forming member 1 provided on the board joint 16
Since the base boards 12 and 13 adjacent to each other can vibrate substantially independently of each other, the vibrating forces are not exerted on each other. That is, the base board 1 by the board joint 16
A joint forming member 18 that prevents direct contact between the two and 13 and further reduces the board joint 16 to the member joint 34.
Since the divided bodies 19 and 20 are easily separated from each other and approached to each other, the base boards 12 and 13 do not exert a vibration force on each other. Therefore, it is possible to prevent the base boards 12 and 13 from being deformed when a vibration force is applied due to an earthquake or the like. Moreover, even if the board joint 16 is provided between the base boards 12 and 13, the joint forming member 18 can prevent the skeleton 11 from being seen.

Next, a second embodiment of the present invention will be described below with reference to the drawings. FIG. 9 shows an example in which the interior structure of the second embodiment is applied to a wall structure. In the figure, reference numeral 41 denotes a surface portion 41a having a flat front side (room side) and a surface portion 41a perpendicular to the surface portion 41a. The frame 41 made of concrete forming the corner portion formed as the flat surface portion 41b forming the reference numeral 42, 43 is a pair of adjacent base boards of the same thickness fixed to the surface portions 41a, 41b of the frame 41. , Reference numeral 44,
45 is the base parts 42, 43 on the surface parts 41a, 41b.
The adhesives for fixing are shown respectively. The base boards 44 and 45 are also general ones having a hexahedron (that is, a rectangular parallelepiped) shape in which adjacent surface portions are all orthogonal to each other.

Both base boards 42 and 43 are connected to each other by the body 41.
By being fixed to the respective surface portions 41a, 41b of the base board 42, they are arranged substantially orthogonal to each other, and in this state, the side surface (opposing surface) 42a orthogonal to the surface 42b of one base board 42 and the other A gap is formed between the chamber-side surface (opposing surface) 43b of the base board 43 so as to face each other in parallel, and a gap, that is, a board joint 46 is formed between the side surface 42a and the surface 43b.

The board joint 46 is provided with a joint forming member (interior structural member) 48 for covering the skeleton 41 while allowing the change of the board joint 46, that is, the change of the gap between the adjacent base boards 42 and 43. ing. The joint forming member 48 is made of a flexible material such as synthetic resin that is fixed to the other side of the base board 42.

As shown in FIG. 10 and the like, the joint forming member 48 has a flat plate-like surface plate portion 50 whose thickness gradually changes so that one end side becomes thin and the other end side becomes thick, and the surface plate portion 50. A plate-like plate portion 51 that extends from the other end side of the base plate portion 50 approximately vertically to the front plate portion 50 and a semicircular shape at an intermediate position in the extending direction of the plate portion 51. And a hollow curved plate portion (deformation portion) 52 that is curved and protrudes to
The cross-sectional shape orthogonal to the length direction (the direction orthogonal to the paper surface in the drawing) is a constant shape.

Further, a large number of through holes 53 are formed in alignment on the side of the front plate portion 50 opposite to the plate portion 51.
The curved plate portion 52 has a wall thickness of the plate portion 51 and the front plate portion 50.
It is thinner than most of them and is easier to deform than these.

The joint forming member 48 has a surface 4 of the base board 43 to such an extent that the curved plate portion 52 is slightly deformed.
The front plate portion 50 is pressed against the base plate 3b and the base plate 4
It will be fixed to the front side of 2 by adhesion or the like. In this fixed state, the curved plate portion 52 is closer to the surface portion 41a than the front plate portion 50.
Since it is provided with a recess on one side, a member joint 55 having a slight gap (for example, about 3 mm) is formed between the front plate portion 50 and the surface 43b of the base board 43.

From the front plate portion 50 of the joint forming member 48 fixed to the base board 42 as described above, the base board 42
Putty 56 is applied to the surface 42b of the. Further, a cloth 5 is put on the front side of the putty 56 and the base board 42.
7 is affixed, and the cross 5 is also on the front side of the base board 43.
No. 8 is attached, and the ends of the crosses 57 and 58 on the near side are wound around and housed in the member joint 55.

The joint forming member 48 as described above is used for the curved plate portion 5.
Since it is only in contact with the base board 43 at 2, the movement in the direction away from the base board 43 is easy, and the elastic deformation of the curved plate portion 52 makes it easy to move in the direction close to the base board 43. Has become.

Next, the construction of the above interior structure will be described. As shown in FIG. 11, the surface portions 41 a, 4 of the body 41 are
1b is coated with adhesives 44 and 45 at appropriate positions, and the side surfaces of the base board 42 are butted against the front surface 43b of the base board 43 without forming a gap between them.
2, 43 are pressed against the adhesives 44, 45 applied to the body 41 to be fixed by sticking.

Next, as shown in FIG. 12, the base board 4
The abutting portion of the second base board 43 is cut perpendicularly to the surface portion 41a so that the side surface 42a is formed so as to be substantially parallel to the surface 43b of the base board 43 with a predetermined gap. As a result, the surface 4 of the base board 43
A board joint 46 is formed between the side surface 42 a of the base board 42 and the side surface 42 a of the base board 42.

Then, as shown in FIG. 13, the joint forming member 48 is formed on the base board 42 by the front plate portion 50 and the base board 42.
The temporary adhesive is applied with an adhesive applied between the base board 43 and the base board 43 before the adhesive solidifies, as shown in FIG.
The curved plate portion 52 is brought into contact with the curved plate portion 52 to be slightly deformed, and the clearance between the front plate portion 50 and the plate portion 51 and the base board 43, that is, the joint 55 of the member is adjusted to about 3 mm.

Next, the joint forming member 48 is used as the base board 42.
As shown in FIG. 15, the front plate portion 50 is fixed to the front plate portion 50.
To the surface 42b of the base board 42, the putty 56 is applied to smooth the surface. Then, as shown in FIG.
Put the cloth 57 on the surface of the base board 42 and the putty 56,
The cloths 58 are attached to the front surface 43b of the base board 43, and the ends of the cloths 57 and 58 on the close side are wound into the member joints 55 and accommodated. The processing of the end portion of the cloth 57 on the base board 42 side is performed by the joint forming member 48.
You may cut | disconnect according to the edge part by the side of the member joint 55 of the front plate part 50 of this. In addition, painting may be performed instead of attaching the cloths 57 and 58.

According to the second embodiment described above,
Similar to the first embodiment, the board joint 46 and the board joint 46 are also affected when a vibration force such as an earthquake is applied.
By the joint forming member 48 provided in the above, the base boards 42 and 43 adjacent to each other can vibrate substantially independently of each other, so that the vibrating forces are not exerted on each other. That is, in the second embodiment, the base board 42,
Since the direct contact between the parts 43 is prevented, and the joint forming member 48 that reduces the board joint 46 to the member joint 55 is easily separated and approached to the base board 43,
The base boards 42 and 43 do not exert a vibration force on each other. Therefore, similarly to the first embodiment, it is possible to prevent the base boards 42 and 43 from being deformed when a vibration force is applied by an earthquake or the like,
Moreover, even if the board joint 46 is provided between the base boards 42 and 43, the joint forming member 48 can prevent the skeleton 41 from being seen.

In the above description, the wall structure is taken as an example of the interior structure, but it is of course applicable to the ceiling structure. Further, as the above-mentioned base board, gypsum board,
Various boards such as veneer plywood and calcareous board can be applied. Further, it is of course possible to fix the baseboards to each other so that the board joints are formed in advance, rather than forming the board joints by fixing the baseboards to each other in a state of being abutted to each other and then cutting them.

[0048]

As described in detail above, claim 1 of the present invention
According to the interior structure described in 1 to 5, adjacent base boards can vibrate substantially independently of each other by the joint and the member for the interior structure provided at the joint even when a vibration force due to an earthquake or the like is applied. They do not exert vibration forces on each other. Therefore, it is possible to prevent the base board from being deformed when a vibration force is applied due to an earthquake or the like. Moreover, even if a gap is provided between the base boards, it is possible to prevent the body from being seen by the interior structural member.

According to the above-mentioned interior structural member of the present invention, even when a vibration force due to an earthquake or the like is applied, the interior structural member is substantially independent of adjacent base boards. Since it is possible to vibrate, adjacent base boards do not exert a vibration force on each other. Therefore, it is possible to prevent the base board from being deformed when a vibration force is applied due to an earthquake or the like.
Moreover, it is possible to prevent the skeleton from being visible even if a gap is provided between the base boards.

[Brief description of drawings]

FIG. 1 is a plan view showing an interior structure and an interior structure member according to a first embodiment of the present invention.

2A and 2B are views showing one divided body of the interior structural member according to the first embodiment of the present invention, wherein FIG. 2A is a plan view and FIG. 2B is a side view.

3A and 3B show the other divided body of the interior structural member according to the first embodiment of the present invention, wherein FIG. 3A is a plan view and FIG. 3B is a side view.

FIG. 4 is a plan view showing an initial state during construction of the interior structure according to the first embodiment of the present invention.

FIG. 5 is a plan view showing the next state of the state shown in FIG. 4 when the interior structure is constructed according to the first embodiment of the present invention.

FIG. 6 is a plan view showing the next state of the state shown in FIG. 5 when the interior structure is constructed according to the first embodiment of the present invention.

FIG. 7 is a plan view showing a state next to the state shown in FIG. 6 when the interior structure is constructed according to the first embodiment of the present invention.

FIG. 8 is a plan view showing the next state of the state shown in FIG. 7 when the interior structure is constructed according to the first embodiment of the present invention.

FIG. 9 is a plan view showing an interior structure and an interior structure member according to a second embodiment of the present invention.

FIG. 10 shows an interior structural member according to a second embodiment of the present invention, wherein (a) is a plan view and (b) is a side view.

FIG. 11 is a plan view showing an initial state during construction of the interior structure according to the second embodiment of the present invention.

FIG. 12 is a plan view showing the next state of the state shown in FIG. 11 when the interior structure is constructed according to the second embodiment of the present invention.

FIG. 13 is a plan view showing the next state of the state shown in FIG. 12 when the interior structure is constructed according to the second embodiment of the present invention.

FIG. 14 is a plan view showing the next state of the state shown in FIG. 13 when the interior structure is constructed according to the second embodiment of the present invention.

FIG. 15 is a plan view showing the next state of the state shown in FIG. 14 when the interior structure is constructed according to the first embodiment of the invention.

[Explanation of symbols]

 11 frame 12 base board 13 base board 16 board joint 18 joint forming member (member for interior structure) 19 divided body 20 divided body 22 front plate part 27 extended part 29 front plate part 31 extended plate part (extended part) 34 Member joint 41 Body 42 Base board 43 Base board 46 Board joint 48 Joint forming member (interior structural member) 50 Front plate part 52 Curved plate part (deformation part) 55 Member joint

Claims (10)

[Claims] 1. An interior structure in which a plurality of base boards are fixed to a body, and a gap is provided between adjacent base boards, and the body is covered in a state in which the gap between the base boards is allowed to change. An interior structure characterized in that a member for interior structure is fixed. 2. The adjacent base boards are arranged on substantially the same plane, and the interior structural member is composed of a pair of divided bodies fixed to the mutually adjacent sides of the adjacent base boards. The interior structure according to claim 1, wherein each of the pair of divided bodies is provided with an extending portion extending in the direction of the other divided body so as to overlap with each other. 3. One of the divided bodies has a front plate portion that is fixed to one front side of the adjacent base boards and includes the extension portion that extends toward the other side of the adjacent base boards. That is, the other of the divided bodies is a front plate portion fixed to the other front side of the adjacent base boards, and a position of the base board that is offset from the front plate portion to the body side of the adjacent base boards. The interior structure according to claim 2, further comprising: the extension portion extending toward one side, wherein a joint is formed between the front plate portions. 4. The adjacent base boards are arranged so as to be substantially orthogonal to each other, and the member for internal structure is fixed to one adjacent side of the adjacent base boards and the other base board. The interior structure according to claim 1, further comprising a flexible deformable portion that extends in the board direction and abuts the other base board. 5. The interior structure member has a front plate portion fixed to one front side of the adjacent base boards, and the deformed portion is provided at a position recessed one step from the front plate portion. The joint structure according to claim 4, wherein joints are formed between the front plate portion and the other of the adjacent base boards. 6. An interior structural member for use in an interior structure in which a joint is provided by fixing adjacent base boards to a frame with a gap therebetween, and the adjacent base boards forming the joints. An interior structural member, characterized in that it covers the frame of the joint in a state in which a change in the gap between them is allowed. 7. An interior structural member used in an interior structure in which adjacent base boards are arranged on substantially the same plane, and a pair of divided bodies fixed to mutually adjacent sides of the adjacent base boards. 7. The interior structural member according to claim 6, wherein each of the pair of divided bodies is provided with an extending portion that extends so as to overlap each other in the direction of the other divided body. 8. One of the divided bodies has a front plate portion that is fixed to one front side of the adjacent base boards and includes the extension portion that extends toward the other side of the adjacent base boards. The other one of the divided bodies has a front plate portion fixed to the other front side of the adjacent base boards, and the extending portion is provided by shifting the position from the front plate portion to the body side. The member for interior structure according to claim 7, wherein: 9. An interior structure member used for an interior structure, wherein the adjacent base boards are arranged so as to be substantially orthogonal to each other, and the interior structure members are fixed to one adjacent side of the adjacent base boards. 7. The member for interior structure according to claim 6, further comprising a flexible deforming portion that extends in the direction of the other base board and contacts the other base board. 10. A front plate portion fixed to one front side of the adjacent base boards, and the deformed portion is provided at a position recessed from the front plate portion by one step. The member for interior structure according to claim 9.