JP2012177283A - Bottom joint formation member, wall surface structure and construction method for bottom joint formation member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bottom joint formation member which can suppress peeling and stain of a wall paper by concealing a gap between wall papers, can enhance design by creating shadows while eliminating the need for allocation at the time of constructing a substrate material and which facilitates addition and position change of a joint; a wall surface structure; and a construction method for the bottom joint formation member.SOLUTION: A bottom joint formation member for forming a bottom joint on a wall surface has a groove part formed in the longitudinal direction and support parts installed on both sides of the side face of the groove part along the longitudinal direction, and in the groove part the bottom part is formed toward the inside of the support part on one side of the support parts installed on both sides of the side face of the groove part.

Description

  The present invention relates to a bottom joint forming member, a wall surface structure, and a construction method for a bottom joint forming member.

  Conventionally, in construction sites such as houses and condominiums, a base material such as a gypsum board is applied to a wall surface, and further, a wallpaper is applied on the base material. Generally, wallpaper is applied in a state where it is cut into a certain width. For this reason, a plurality of wallpaper are arranged in the width direction and applied on the base material. During construction, in order to conceal the seam between the wallpaper, it is common to place the wallpapers together without any gaps.

However, even when the wall papers are pressed against each other and installed without any gaps, the wallpaper may shrink over time, resulting in gaps between the wallpaper and exposing the base material.
In addition, when the moisture due to moisture or the like permeates from the joint between the wallpaper, the wallpaper peels off from the base material, and the aesthetic appearance of the wall surface is impaired.
Furthermore, when dirt penetrates from the joint between the wallpaper, it is difficult to remove the dirt even if the wall surface is wiped off, and the aesthetic appearance of the wall surface is impaired.

  In order to solve such a problem, for example, a joint member has been proposed as a member for forming a joint on a wall surface and constructing a wallpaper (see Patent Document 1).

JP 2006-9440 A

  The conventional joint member is to construct the base material with a gap between the base materials in advance, so that the base material is constructed by so-called jointing construction, and the wallpaper is applied on the base material, and then the joint material is formed in the gap between the base materials. It is constructed by fitting the groove part.

However, when performing joint construction, so-called allocation is necessary to determine the construction position of the base material in advance at the stage of construction of the base material so that the groove portion of the joint member can be appropriately fitted between the base materials. is there. In the allocation, adjustment of the position where the base material is applied is very complicated.
In addition, it is very difficult to change the construction position of the base material once the assignment is performed.

  The present invention has been made in view of the above circumstances, and can conceal the gaps between the wallpaper, suppress peeling and soiling of the wallpaper, and improve the design of the wall by creating a shadow on the wall. Bottom joint forming member, wall surface structure, and bottom joint forming member construction method that can be improved and do not require allocation when constructing the base material, and easy to add joints or change positions It is an issue to provide.

  A bottom joint forming member according to the present invention is made in view of the above circumstances, and is a bottom joint forming member that forms a bottom joint on a wall surface, a groove formed in a longitudinal direction, and A support portion provided along the longitudinal direction on both sides of the side surface, and the groove portion is formed so that a bottom portion thereof is formed toward the inside of the support portion on one side of the support portions provided on both side surfaces of the groove portion. It is characterized by becoming.

  According to such a configuration, it is possible to conceal gaps between the wallpaper, suppress peeling and dirt of the wallpaper, and improve design by creating a shadow on the wall surface. Moreover, allocation is unnecessary at the time of construction of a base material, and the bottom joint formation member which is easy to add a joint and change a position can be obtained.

  Moreover, it is preferable that the back surface of the bottom joint forming member according to the present invention is formed in a flat shape.

  According to such a configuration, it is possible to easily construct the bottom joint forming member on the joint between the base materials, and it is possible to construct even on a plane on the wall surface where the joint of the base material does not exist. The bottom joint can be formed at a desired position on the wall surface.

  In the bottom joint forming member according to the present invention, it is preferable that the groove is formed by a side wall composed of two opposing flat surfaces.

  According to such a configuration, the groove portion of the bottom joint forming member can be easily formed.

  In the bottom joint forming member according to the present invention, it is preferable that the groove is formed by a side wall formed by two opposing curved surfaces.

  According to such a configuration, it is possible to express a texture as if the bottom of the groove is concealed and a dark shadow is created on the wall surface to have a deeper depth.

  Moreover, it is preferable that the support part of the both sides which pinched | interposed the groove part can be separated from the groove part by the bottom joint formation member which concerns on this invention.

  According to such a configuration, it is possible to construct a wallpaper having a large thickness on the bottom joint forming member.

  The present invention also includes the bottom joint forming member constructed on the base material and the wallpaper constructed on the bottom joint forming member, and the seam of the wallpaper is accommodated inside the groove portion of the bottom joint forming member. It is also a wall surface structure.

  According to such a configuration, it is possible to conceal the gaps between the wallpaper, suppress peeling and dirt of the wallpaper, improve the design by creating a shadow, and the construction of the base material In this case, it is possible to provide a wall surface structure that does not require allocation and that facilitates the addition and position change of joints.

  Further, the present invention is a method for constructing a bottom joint forming member for constructing the bottom joint forming member on a wall surface, the step of constructing the bottom joint forming member on a base material, and a support portion of the bottom joint forming member And a method for constructing a joint joint forming member having a step of shaping the boundary with the base material with a putty agent and a step of constructing wallpaper on the base material on which the joint joint forming member is constructed.

  According to such a configuration, it is possible to conceal the gaps between the wallpaper, suppress peeling and dirt of the wallpaper, improve the design by creating a shadow, and the construction of the base material In this case, the bottom joint forming member which does not need to be allocated and can be easily added or changed in position can be easily constructed on the wall surface.

  According to the present invention, it is possible to conceal gaps between wallpaper, to prevent peeling and dirt of the wallpaper, to improve design by creating shadows, and for the construction of the base material In this case, it is possible to provide a bottom joint forming member, a wall surface structure, and a construction method for the bottom joint forming member, in which allocation is unnecessary, and joint addition and position change are easy.

(A) is a longitudinal cross-sectional view which shows one Embodiment of the wall surface structure of this invention. (B) is a longitudinal cross-sectional view which shows one construction method of a wall surface. (A) is a longitudinal cross-sectional view which shows other embodiment of the wall surface structure of this invention. (B) is a longitudinal cross-sectional view which shows the other construction method of a wall surface. (C) is a longitudinal cross-sectional view which shows the wall surface structure which constructed the conventional joint member. It is sectional drawing of the state which constructed the bottom joint forming member of this invention in the parallel direction with respect to the floor surface. It is a perspective view of the bottom joint formation member of this invention. It is a longitudinal cross-sectional view of the bottom joint forming member of this invention. (A) And (b) is an enlarged view of the groove part in the longitudinal cross-sectional view of the bottom joint formation member of this invention. (A) is sectional drawing at the time of constructing a thick wallpaper on the bottom joint formation member of this invention constructed | assembled on the base material, (b) and (c) are bottom joint formation members of this invention It is a longitudinal cross-sectional enlarged view at the time of constructing | separating with the lowest end of a groove part bottom part as a boundary. It is a longitudinal cross-sectional enlarged view which shows a part of bottom joint formation member of this invention. It is a longitudinal cross-sectional enlarged view showing one Embodiment of the bottom joint formation member of this invention. (A) is a longitudinal cross-sectional enlarged view of a state in which a putty agent is filled in a step portion formed by the outer end portion of the support portion of the bottom joint forming member of the present invention and the base material, (b) It is a longitudinal cross-sectional enlarged view of the state which smoothed the putty agent surface. It is a longitudinal cross-sectional enlarged view showing other embodiment of the bottom joint formation member of this invention.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In each figure, it should be noted that the length, thickness, and size of each member or each part are different from actual ones.

[Wall structure]
FIG. 1A shows an embodiment of the wall surface structure of the present invention. Fig.1 (a) is a longitudinal cross-sectional view of the wall surface structure of this embodiment. As shown in FIG. 1A, the wall surface structure of the present embodiment includes a bottom joint forming member 1, wallpaper 4, a base material 5, and a putty agent 8.
The bottom joint forming member 1 according to the present embodiment includes a groove portion 2 and a support portion 3 including mainly two side pieces 31 and 32 provided on both sides of the groove portion 2. Further, the side pieces 31 and 32 have both end portions 31a and 32a, inclined portions 31b and 32b, and bottom surfaces 31c and 32c that are flush with each other. The groove 2 is formed so that the bottom 2c is inclined from the upper end 2a toward the inside 31d of the side piece 31.
In the present embodiment, the bottom joint forming member 1 is applied on the surface 5 a of the base material 5. Further, the step between the inclined portions 31b and 32b of the support portion 3 and the surface 5a of the base material 5 is shaped by the putty agent 8, and the step is eliminated. Further, the wallpaper 4 is applied on the base material 5, the bottom joint forming member 1, and the putty agent 8, and the joint of the wallpaper 4 is accommodated in the groove portion 2 of the bottom joint forming member 1.
FIG.1 (b) is a longitudinal cross-sectional view of the conventional wall surface structure. In this wall surface structure, when constructing a plurality of wallpapers 4 on the plane of the base material 5, the seam T of the wallpaper 4 is formed on the walls by abutting the edges of the wallpaper 4. In this case, the wallpaper 4 shrinks with time, and the interval between the joints T is widened to create a gap between the wallpapers, which may impair the design of the wall surface.
Further, dirt may permeate from the joint T between the wallpaper to contaminate the cross section of the joint T. In this case, the dirt adhering to the cross section of the seam T is blocked by the wallpaper 4 on both sides and is difficult to wipe off.
In the case of the wall surface structure of the present embodiment, even if the wallpaper 4 contracts with time, the seam of the wallpaper 4 is concealed by being accommodated inside the groove 2 as shown in FIG. There is no change in appearance, and the aesthetics of the wall surface can be maintained by suppressing the deterioration of the design.
Further, by forming the opening of the groove portion 2 narrowly, it is possible to improve the light shielding property and to form the shadow S clearly. As a result, the design improvement effect by the shadow creation of this invention can be exhibited more notably.
Furthermore, by forming the opening of the groove portion 2 narrow, it is possible to prevent moisture penetration due to moisture and the like from the joint between the wallpaper 4, and to prevent the wallpaper 4 from peeling from the base material 5 due to this. Can do.
Furthermore, since the joint between the wallpaper 4 is accommodated in the groove part 2, even if dirt permeates from the end of the wallpaper 4, it is concealed by the shadow S, and the aesthetic appearance can be maintained.

Fig.2 (a) is a longitudinal cross-sectional view which shows other embodiment of the wall surface structure of this invention. In FIG. 2A, the two base materials 51 and 52 are pressed against each other, and a seam U is formed in the gap between the base materials. The bottom joint forming member 1 is constructed on the joint U. Further, the step between the inclined portions 31 b and 32 b of the support portion 3 and the base material surfaces 51 b and 52 b is shaped and eliminated by the putty agent 8. Furthermore, the wallpaper 4 is constructed on the base material 5, the bottom joint forming member 1, and the putty agent 8, and the joint of the wallpaper 4 is accommodated in the groove portion 2 of the bottom joint forming member 1, and a shadow S is formed. ing.
FIG. 2B is a longitudinal sectional view of an example of a conventional wall surface structure. As one general construction method, a plurality of base materials 5 are juxtaposed on a wall material 9 such as mortar, and are exposed on the base materials 51 and 52 and the gap V between the base materials 51 and 52. There is a method of constructing the wallpaper 4 on the wall material 9. According to this method, the joint T of the wallpaper 4 is formed in the gap V between the base materials 51 and 52.
Moreover, the construction method using the conventional joint member 7 as another general construction method is shown in FIG.2 (c). As shown in the figure, the conventional joint member 7 has a recess 72 formed in the longitudinal direction, and support portions 71 and 73 formed along the longitudinal direction at the upper ends of the side surfaces on both sides of the recess 72. For this reason, the recessed part 72 protrudes to the base surface side in a construction state, and it is comprised so that it may fit in the clearance gap V between the base materials 51 and 52. FIG.
According to the general construction method of the wallpaper 4 shown in FIG. 2 (b) and FIG. 2 (c), the construction may be performed by so-called joint construction in which a gap is provided between the base materials 51 and 52 in advance. Necessary. In joint construction, since it is necessary to perform so-called allocation to determine the construction positions of the base materials 51 and 52 before construction, adjustment of the positions of the base materials 51 and 52 becomes very complicated.
Moreover, since it is very difficult to change the construction position of the base materials 51 and 52 after allocating once, it is difficult to change the joint position.
On the other hand, as shown in FIG. 2A, the bottom joint forming member 1 of the present invention is constructed on the joint U between the base materials 51 and 52, and the base materials 51 and 52 and the bottom joint forming member 1 are formed. And, by constructing the wallpaper 4 on the putty agent 8 and making the seam of the wallpaper 4 accommodated in the bottom 2c of the groove 2 of the bottom joint forming member 1, the base materials 51, 52, And the construction position of the joint member 1 can be changed easily. This is because it is not necessary to install the joint member in the gap between the base materials as in the case of the conventional joint member, and this eliminates the need for allocation when the base materials 51 and 52 are constructed. Therefore, it is easy to change the construction positions of the base materials 51 and 52 and the joint member 1.

The wallpaper 4 is not particularly limited as long as it is flexible and can be applied on the base material. In addition to paper, fiber, plastic, a combination of these, metal foil, etc. Conventionally known ones including those having a multi-layer structure in which can be combined can be used.
In addition, the construction of the wallpaper 4 mainly means that the wallpaper 4 is pasted to the wall surface of the building with an adhesive as a finishing material, and an adhesive / adhesive agent is applied to the wall paper in advance and pasted to the wall surface. It is a concept that includes

The direction in which the bottom joint forming member 1 is constructed is not limited to a specific direction such as a direction perpendicular to the floor surface. For example, as shown in FIG. 3, the direction parallel to the floor surface 6 may be sufficient. At this time, as shown in FIG. 3, it is preferable that the bottom joint forming member is formed toward the side piece 31 of the support portion 3 in which the bottom portion 2c of the groove portion 2 is disposed on the upper side.
By constructing so that the bottom 2c of the groove is formed upward, a large amount of water or the like is applied to the wall surface, and even when water or the like enters the groove 2 it can be drained naturally. It becomes possible.

[Bottom joint forming member]
Hereinafter, the bottom joint forming member 1 will be described. As shown in FIG. 4, the bottom joint forming member 1 of the present embodiment includes a groove portion 2 and a support portion 3.
In this embodiment, as shown in FIG. 4 and FIG. 5, the groove portion 2 has an opening 2 a located substantially at the center in the short direction of the bottom joint forming member 1 and continuously along the longitudinal direction. Is formed. On both sides of the side surface of the groove portion 2, a support portion 3 is formed so as to protrude in the short direction of the bottom joint forming member 1 and continuously along the longitudinal direction. The support portion 3 is mainly composed of two side pieces 31 and 32 provided on both sides of the groove portion 2, and the side pieces 31 and 32 include both end portions 31 a and 32 a and both end portions 31 a and 32 a from the groove portion 2. Inclined portions 31b and 32b that become thinner toward the bottom, and bottom surfaces 31c and 32c that are coplanar with each other. The groove 2 is formed so that the bottom 2c is inclined from the upper end 2a toward the inside 31d of the side piece 31.

[Groove]
The groove portion 2 is formed along the longitudinal direction on the surface side of the bottom joint forming member 1 of the present invention, creates a joint by forming joints on the wall surface in the construction state, and feels as if the wall surface has depth. It is a part which improves designability by expressing. The end of the wallpaper can be inserted into the groove 2 with a construction tool such as a trowel or spatula, and fixed to the inside. The construction tool such as a trowel or spatula may be anything as long as it is thin and strong made of metal or resin.

  In the present embodiment, as shown in FIG. 5, the groove portion 2 has an opening portion 2 a formed at substantially the center in the short direction of the bottom joint forming member 1, and the bottom portion 2 c extends from the opening portion 2 a to the groove portion 2. It is formed so that it may incline toward the inside 31d of the side piece 31 of one side among the support parts 3 provided in the both sides of the side.

Thus, since the bottom joint forming member 1 of the present invention is formed so that the groove portion 2 is inclined toward the inside 31d of the side piece 31, the depth of the groove portion 2 even if the side piece 31 is thin. Can deepen. For this reason, it becomes possible to set the thickness of the bottom joint forming member 1 to be thinner than the depth of the groove portion 2. For this reason, unlike the conventional joint member described in Patent Document 1, it is not necessary to perform a so-called jointing construction in which a base material is previously constructed with a gap between the base materials in order to ensure the thickness of the joint member. . When the joint construction is not required, it is not necessary to determine the construction position of the base material in advance at the stage of constructing the base material, so that the construction of the base material is facilitated.
Moreover, since the bottom joint forming member 1 of the present invention does not protrude from the back surfaces 31c and 32c, it can be applied at a desired position. It is possible to suppress peeling and dirt.
Furthermore, since the bottom joint formation member 1 of the present invention can be constructed at a desired position, the construction position of the base material can be easily changed, and addition and joint change of joints are easy. It is possible to improve the design by creating shadows at a desired position and the desired number of wall surfaces.

6A and 6B are enlarged cross-sectional views showing the configuration of the groove 2. The groove 2 is formed by side walls 2d _{1 and} 2d ₂ made of two opposing flat surfaces. For this reason, the groove 2 can be easily formed by a method such as injection molding or cutting after molding.

The depth L21 of the groove part 2 is demonstrated using Fig.6 (a). As shown in the figure, the depth L21 is determined in the longitudinal cross-sectional view of the bottom joint forming member 1 in the side walls 2d ₁ , the upper end portions 2a ₁ of the 2d ₂ , the intermediate point 2b of the 2a ₂ , and the bottom end portion 2c _{1 of the} groove portion 2. , the straight line connecting the midpoint 2e of 2c ₂ in length. The depth L21 is preferably 1.0 to 6.0 mm, and more preferably 3.0 to 5.0 mm.
If the depth L21 of the groove portion 2 is too deep, molding becomes difficult and the strength of the bottom joint forming member 1 may be impaired. Moreover, when the thickness of the bottom joint forming member 1 is increased in order to maintain the strength, there is a possibility that the design property is conspicuously deteriorated when it is constructed on the wall surface. On the other hand, when the depth L21 of the groove part 2 is too shallow, it is not possible to sufficiently create a shadow, and there is a possibility that the design improvement effect cannot be exhibited sufficiently.

Next, the width L22 of the groove 2 will be described with reference to FIG. As shown in the drawing, the width L22 is a length of a straight line connecting the upper end portions 2a ₁ and 2a ₂ of the side walls 2d ₁ and 2d ₂ in the longitudinal cross-sectional view of the bottom joint forming member 1. The width L22 is preferably 1.0 to 10.0 mm, and more preferably 2.0 to 5.0 mm.
If the width L22 of the groove portion 2 is too large, the bottom portion 2c of the groove portion is exposed and it is difficult to create a shadow, and there is a possibility that the design improvement effect by the shadow creation in the present invention cannot be exhibited sufficiently. On the other hand, if the width L22 of the groove portion 2 is too small, the joints are not conspicuous, and the design improvement effect by joint formation in the present invention may not be sufficiently exhibited.

Moreover, the bottom joint forming member 1 of the present invention can make it possible to separate the side pieces 31 and 32 on both sides of the groove 2 by the groove 2. In particular, as shown in FIG. 6 (b), the position of the lowermost end 2c ₁ of the groove 2 of the bottom portion 2c, since the thickness of the back surface 31c of the side piece 31 is thinnest point, adjust the intensity of the position By doing so, the side pieces 31 and 32 can be separated from each other with the lowest end 2c ₁ of the bottom 2c as a boundary. This intensity can be adjusted by setting the distance L23 between the lowermost end 2c ₁ and the rear surface 31c in a predetermined range. The preferred range of the distance L23 depends on the material of the bottom joint forming member 1, but when the material is resin, it is preferably 0.1 to 1.0 mm, and preferably 0.2 to 0.5 mm. It is more preferable.
If the distance L23 is too large, the both sides of the support portion 3 sandwiching the groove portion 2, it becomes difficult for dissecting the boundary of the lowermost end 2c ₁ of the groove 2 of the bottom 2c, too small Conversely, the side pieces 31 There is a possibility that the work 32 may be disconnected during conveyance or work, and workability may be reduced.

  When the bottom joint forming member 1 of the present invention can be separated into the side pieces 31 and 32 at the position of the groove portion 2, it becomes easy to construct a thick wallpaper on the bottom joint forming member 1 of the present invention. This will be described below with reference to the drawings.

FIG. 7A is a diagram showing a state in which the bottom joint forming member 1 of the present invention is constructed on the base surface 5 and the wallpaper 4 having a large thickness is to be constructed thereon.
One end 41 of the wallpaper 4 is inserted into the bottom 2c of the groove 2 of the bottom joint forming member 1 so as to conceal the joint of the wallpaper 4. As shown in the drawing, when the thickness of the wallpaper 4 is larger than a predetermined thickness, in the state where one end 41 is inserted, the other end 42 cannot be inserted and construction cannot be performed.

On the other hand, FIGS. 7 (b) and 7 (c) are both constructed on the base material 5 in a state where the support portion 3 of the bottom joint forming member 1 of the present invention is separated, and the wallpaper having a thick thickness thereon. It is a figure showing the state which constructed 4. Thus, by constructing the support part 3 in a state of being separated at the position of the groove 2, the width of the groove part 2 is widened and not only one end part 41 of the thick wallpaper 4 but also the other The end portion 42 can also be inserted into the groove portion 2 to enable the construction of the thick wallpaper 4.
FIG. 7B shows a case where the distance between the side pieces 31 and 32 is set so as to be slightly larger than the thickness of the two wallpapers 4. In this case, the surface of the wallpaper 4 is constructed so as to be slightly separated inside the groove 2, so that a narrow space is formed inside the groove 2. Since the narrow space has an effect of shielding outside light, the shadow S is formed remarkably. As a result, the bottom joint forming member 1 of the present invention can create the shadow S more strongly on the wall surface, and can more effectively exhibit the design improvement effect by the shadow creation of the present invention.
FIG. 7C shows a case where the distance between the side pieces 31 and 32 is set to be approximately equal to the thickness of the two wallpaper 4 and the surface of the two wallpaper 4 is in contact with the inside of the groove 2. Yes. In this case, since the two pieces of wallpaper 4 are both put between the side pieces 31 and 32, the side pieces 31 and 32 firmly fix the end portions 41 and 42 after the construction. For this reason, it can prevent that a water | moisture content penetrate | invades from the joint between wallpaper, and the effect which prevents malfunctions, such as peeling of the wallpaper 4 which arises by the permeation | transmission of a water | moisture content, can be exhibited more notably. Further, since the end portions 41 and 42 are sandwiched between the side pieces 31 and 32, the end portion peeling caused by causes other than the penetration of moisture is less likely to occur. Therefore, the bottom joint forming member 1 of the present invention exhibits the effect of preventing the peeling of the wallpaper 4 while exhibiting the design improvement effect by creating the shadow of the present invention that creates the shadow S on the wall surface. Can do.

[Supporting part]
The support portion 3 is composed of two side pieces 31 and 32 located on both sides of the groove portion 2, and is a member that forms the groove portion 2 by sandwiching a space by facing both sides of the groove portion 2.

FIG. 8 is a cross-sectional view for explaining the side piece 32 of the support portion 3. Since the side piece 31 has the same configuration except for the arrangement of the groove portion 2, the description of the same portion is omitted. The side piece 32 includes an end portion 32a, an inclined portion 32b whose thickness decreases from the groove portion 2 toward the end portion 32a, and a bottom surface 32c.
The height H31 of the end portion 32a is preferably 2.0 mm or less, and more preferably 1.0 mm or less.
If the height H31 is too high, the level difference between the wall surface and the end portion 32a becomes large when it is applied to the wall surface, which may make shaping with a putty agent difficult. If the shaping using the putty agent is insufficient, there is a risk that a level difference will occur in the applied wallpaper and the aesthetics of the wall surface will be impaired.
Note that the end portions 31a and 32a are not limited to planes, and may have a cusp shape in cross section as shown in FIG.
By making the end portions 31a and 32a pointed in cross section, the step between the support portion 3 and the wall surface can be made as low as possible, and the boundary between the support portion 3 and the base material is shaped with a putty agent. Work becomes easier.

8, the height H32 has a top end portion 2a ₁ of the opposite sides of the side pieces 32 forming the groove 2 is the distance between the rear surface 32c. The height H32 is preferably 1.0 to 5.0 mm, and more preferably 2.0 to 3.0 mm.
When the height H32 is too high, there is a possibility that the design will be impaired due to being too conspicuous on the wall surface when it is applied to the wall surface. On the other hand, if the height H32 is too low, the depth of the groove portion 2 is insufficient, the shadow creation effect and the step forming effect of the present invention may be insufficient, and the groove portion 2 may be difficult to form. .

In the side piece 32 on one side of the support portion 3 shown in FIG. 8, the distance between the upper end portion 2a ₂ of the support portion 3 forming the groove portion 2 and the outer end portion 32a of the support portion 3 is defined as a width L31. The width L31 is preferably 10 to 50 mm, and more preferably 20 to 30 mm.
If the width L31 is too large, it is too conspicuous when it is applied to the wall surface, which may impair the design of the wall surface. On the other hand, if the width L31 on one side of the support portion 3 is too small, there is a possibility that it cannot be firmly bonded to the base material.

  In the present embodiment, as shown in FIG. 5, the back surface 3c of the support portion 3 is preferably a flat surface. When the back surface 3c of the support portion 3 is a flat surface, the bottom joint forming member 1 can be easily constructed on the joint of the base material 5, and on the plane where the joint of the base material 5 does not exist on the wall surface. Even if it exists, since it can construct, a bottom joint can be formed in a desired position. In addition, in order to improve adhesiveness, you may give the back surface 3c of the support part 3 the process by mechanical embossing, sandblasting, etc., and affixing a nonwoven fabric or a woven fabric.

  Although it does not specifically limit as a material which forms the said bottom joint formation member 1, Synthetic resins, such as a vinyl chloride resin, polyolefin resin, polyethylene, a polypropylene, ABS, are mentioned. Of these, vinyl chloride resin is preferred because it is easy to mold and has excellent durability.

The present invention is also a method for constructing a bottom joint forming member for constructing the bottom joint forming member on a wall surface, the step of constructing the bottom joint forming member on a base material, and a support portion for the bottom joint forming member And a method for constructing a joint joint forming member having a step of shaping the boundary with the base material with a putty agent and a step of constructing wallpaper on the base material on which the joint joint forming member is constructed.
According to the construction method of the bottom joint forming member, the seam between the wallpaper is concealed, the wallpaper is difficult to peel off from the base material, dirt is not easily penetrated from the joint of the wallpaper, and assignment is not required when constructing the base material. In addition, a bottom joint forming member that is easy to add and change the joint can be easily constructed on the wall surface.
Further, the step formed by the support portion and the base material can be concealed by shaping the boundary between the support portion of the bottom joint forming member and the base material with a putty agent. Thereby, it becomes possible to make a bottom joint formation member inconspicuous on a wall surface.

The method for constructing the bottom joint forming member 1 on the base material 5 is not particularly limited, and examples thereof include a method using an adhesive, a double-sided tape, and an adhesive.
Especially, the method by an adhesive agent is preferable at the point which can be apply | coated easily to the whole back surface of the bottom joint formation member 1, and can adhere | attach firmly. As the adhesive, a modified silicone resin-based, ethylene-vinyl acetate-based, acrylic resin-based adhesive or the like can be used.

  As a method of shaping the boundary between the support portion of the bottom joint forming member 1 and the base material 5 with the putty agent 8, for example, as shown in FIG. 10 (a), the outer end portion 32a of the support portion 3, The step portion formed by the base material 5 is filled with the putty agent 8, and as shown in FIG. 10 (b), the surface 32 b of the support portion 3 and the surface 5 a of the base material 5 are continuous. A method of smoothening and curing the surface of the putty agent 8 with a construction tool such as a spatula can be used.

The method for filling the putty agent 8 is not particularly limited, and for example, a conventionally known method such as coating with a spatula can be used.
The method for smoothening and curing the surface of the putty agent 8 is not particularly limited, and a conventionally known method can be used. For example, a method of smoothening the surface of the putty agent 8 using a trowel, spatula, sander or the like so as to match the surrounding height, naturally drying, and curing and curing can be mentioned.

  The putty agent 8 is not particularly limited as long as the step portion formed by the outer end portion 3a of the support portion 3 and the surface 5a of the base material 5 can be filled. For example, a gypsum-based putty agent, a calcium carbonate-based putty agent, Examples include an epoxy putty agent, a polyester putty agent, and an acrylic putty agent.

The putty agent 8 may be appropriately selected and used according to the width or depth of the portion to be filled, and may be used alone or in combination of two or more. .
Further, before filling with the putty agent 8, treatments such as filling with a backup material and primer application may be performed in advance, and after filling, treatments such as surface polishing and reinforcing material lamination may be performed.

It does not specifically limit as a method of constructing the said wallpaper 4, A conventionally well-known method can be used. For example, the method of apply | coating an adhesive agent on the back surface of the wallpaper 4, and affixing this on the base material 5 in which the said bottom joint formation member 1 was constructed is mentioned.
The wallpaper 4 is not particularly limited, and a conventionally known wallpaper can be used. Moreover, the said adhesive agent is not specifically limited, The conventionally well-known adhesive agent used for construction of a wallpaper can be used. Examples of the adhesive include starch-based, cellulose-based, and ethylene-vinyl acetate-based adhesives.

According to the bottom joint forming member 1 described above, as shown in FIGS. 4 and 5, the groove portion 2 formed in the longitudinal direction and the support portion 3 provided along the longitudinal direction on both sides of the side surface of the groove portion 2. The groove portion 2 is formed toward the inside 31 of the support portion 3 on one side of the support portions 3 provided on both side surfaces of the groove portion 2. There is no need to install the groove 2 of the bottom joint forming member 1 in the gap. For this reason, construction can also be performed on the wall surface where there is no gap between the base materials.
Moreover, as shown to Fig.2 (a), it is not necessary to fit the groove part 2 of the bottom joint formation member 1 in the clearance gap between base materials, and to construct. For this reason, allocation becomes unnecessary at the time of construction of a base material, and change of the construction position of a base material becomes easy.
Moreover, since the shadow S can be created by the groove portion 2 formed in the longitudinal direction, it is possible to express the texture as if the wall surface has a depth, thereby improving the design. .

  Further, as shown in FIG. 2 (a), by forming the back surface 3c in a flat shape, it is easy to fit on the gap between the base materials that do not have a sufficient width for fitting the groove portion of the conventional joint member. The bottom joint forming member 1 can be applied to the wall, and as shown in FIG. 1A, it can be applied even at a location on the wall surface where there is no gap between the base materials. Therefore, the bottom joint can be formed at a desired position on the wall surface, and the design of the wall surface can be improved.

  In addition, as shown in FIG. 5, the groove portion 2 is formed by a side wall formed of two opposing flat surfaces, thereby facilitating the formation of the groove portion 2 by a method such as injection molding or cutting after molding. .

  Further, as shown in FIG. 7B, the bottom joint forming member 1 is configured such that the side pieces 31 and 32 of the support portions 3 on both sides of the groove portion 2 can be separated from each other with the groove portion 2 as a boundary. On top of this, it is possible to construct a thick wallpaper.

Moreover, according to the wall surface structure demonstrated above, as shown to Fig.1 (a) and Fig.2 (a), the said joint formation member 1 constructed | assembled on the base material 5, and the said joint formation member 1, and the seam of the wallpaper 4 is housed inside the groove portion of the bottom joint forming member 1, so that generation of a gap due to the shrinkage of the wallpaper 4 over time is suppressed. be able to.
Moreover, according to the wall surface structure demonstrated above, it becomes possible to suppress peeling from the base material of the wallpaper 4 by the water | moisture content resulting from moisture etc. osmose | permeating from the joint between wallpaper, and it is difficult to wipe off the penetration | penetration which penetrates from a joint. It is possible to suppress dirt and keep the aesthetic appearance of the wall surface.
Moreover, according to the wall surface structure demonstrated above, it becomes possible to improve the designability by creating the shadow S.
Moreover, since the said bottom joint formation member 1 can be constructed also in the location where the clearance gap between base materials does not exist like FIG. 1 (a), a joint can be added to the desired position on a wall surface.
Further, as shown in FIG. 2A, when the bottom joint forming member 1 is constructed between the base materials 51 and 52 arranged side by side, the joint is formed in the gap between the base materials as in the conventional joint member. Since it is not necessary to install the members while fitting them, it is not necessary to assign them when the base material 5 is applied, and the construction positions of the base materials 51 and 52 can be easily changed.

  Moreover, according to the construction method of the bottom joint formation member 1 demonstrated above, the process of constructing the bottom joint formation member 1 on a base material, the support part 3 of the bottom joint formation member 1, and the base material 5 Since there is a step of shaping the boundary with a putty agent and a step of constructing the wallpaper 4 on the base material on which the joint forming member is constructed, the generation of a gap between the wallpaper is suppressed. The bottom joint forming member 1 is difficult to peel off from the material 5, hardly penetrates through the seam of the wallpaper 4, does not need to be assigned when the base material 5 is constructed, and the joint joint forming member 1 can be easily added or repositioned on the wall surface. It can be easily constructed.

  In addition, this invention is not restricted to said embodiment, A various change and deformation | transformation are possible.

  For example, in the above-described embodiment, the example in which the groove portion 2 is formed by the side walls made of two opposing planes is shown in FIG. 5, but the present invention is not limited thereto, and as shown in FIG. It can be set as the structure formed by the side wall which consists of two curved surfaces which oppose.

  By forming the groove portion 2 with a side wall composed of two curved surfaces facing each other, the bottom portion 2c is concealed, a darker shadow is created on the wall surface, and a texture as if having a deeper depth is expressed. It becomes possible.

  Examples of the present invention will be described below. However, the present invention is not limited to the following examples.

Example 1
A vinyl chloride resin was melt-kneaded with a twin-screw centrifugal extruder and extruded to form a bottom joint construction member 1 having a length of 2700 mm in the longitudinal direction.
The groove portion 2 of the bottom joint construction member 1 is mainly composed of side walls 2d ₁ , 2d ₂ and a bottom portion 2c composed of two opposing planes, and is formed so that the bottom portion 2c is located inside the side piece 31 of the support portion 3. did.
Moreover, the back surface 3c of the bottom joint forming member 1 was formed in a planar shape.
The width of one side of the support portion 3 of the bottom joint forming member 1 formed in this way was 25 mm, and the height was 3.0 mm. Moreover, the depth of the groove part 2 was 4.0 mm, and the width was 2.0 mm. The distance between the lowest end 2c ₁ of the groove 2 and the back surface 3c of the support 3 is 0.3 mm, and the support 3 on both sides sandwiching the groove 2 is the lowest 2c ₁ of the bottom 2c of the groove 2. It was possible to cut off at the border.
Thus, the bottom joint forming member 1 according to Example 1 was manufactured.

  Next, as the base material 5, one sheet of gypsum board (manufactured by Yoshino Gypsum Co., Ltd., trade name “Tiger Board” (registered trademark)) was prepared. On this, the bottom joint forming member 1 was constructed using a modified silicone resin adhesive (trade name “WMPX-1”, manufactured by Toli Co., Ltd.). A step at the boundary between the base material 5 and the end of the support portion 3 was filled with a putty agent (trade name “wide” manufactured by Yayoi Chemical Industry Co., Ltd.) and shaped with a plastic spatula.

Next, two sheets of wallpaper 4 (trade name “Real Deco” (registered trademark)) manufactured by Toli Co., Ltd. are prepared, and a starch-based adhesive (trade name “Pure Bond” manufactured by Tori Co., Ltd.) is used as a base material. 5 and the bottom joint forming member 1. The end portions of the two wallpapers 4 were accommodated in the groove portion 2 of the bottom joint forming member 1.
Thus, the wall surface structure according to Example 1 was formed.

  When the bottom joint forming member 1 is manufactured as described above and the wall surface structure is constructed by applying the wallpaper 4 on the bottom joint forming member 1 constructed on the base surface, the bottom 2c of the groove 2 is formed on both sides of the groove. Since it is formed toward the inside of the side piece 31 on one side of the provided support portion, it was possible to suppress the generation of a gap between the wallpaper and the peeling of the wallpaper 4 from the base material 5. . Moreover, it was possible to suppress the penetration of dirt that was difficult to wipe off from the seam of the wallpaper 4 and to maintain the beauty of the wall surface. Furthermore, a shadow was created on the wall surface by the groove part 2, and a texture as if having a deep depth could be expressed.

(Example 2)
Two base materials 51 and 52 were prepared and applied by abutting them. A seam U was formed between the base materials 51 and 52. The joint formation member 1 similar to Example 1 was constructed on the joint U formed in this way. On this, the wallpaper 4 was constructed using the same adhesive as in Example 1.
A wall surface structure was formed in the same manner as in Example 1 except that the construction was performed as described above.

  When the bottom joint forming member 1 manufactured as described above was applied on the joint between the base materials, the joint between the base materials could be concealed. In addition, since the groove portion 2 of the joint member of the bottom joint forming member 1 is not fitted into the gap between the base materials, it is not necessary to perform the assignment when the base materials 51 and 52 are constructed. The position was easy to change.

  The bottom joint forming member of the present invention is applied to a wall surface in a room such as a general house, a condominium, and an office building.

1 ... bottom joint member 2 ... groove 2a ... groove opening 2a _1, 2a 2 _... bottom 2c ₁ midpoint 2c ... groove of the upper end portion 2b ... upper end, 2c 2 _... bottom end 2d ₁ of the groove, 2d ₂ ... Side wall 2e ... Intermediate point of bottom of groove part L21 ... Depth of groove part L22 ... Width of groove part L23 ... Distance between bottom end of groove part and back surface 3 ... Support part 31, 32 ... Side piece part 31a of support part 3 32a, outer end portions 31b, 32b of the support portion, inclined portions 3c, 31c, 32c of the support portion, a back surface of the support portion 4, a thick wallpaper 41, one end portion of the wallpaper 42, the other end portion of the wallpaper 5, DESCRIPTION OF SYMBOLS 51,52 ... Base material 5a ... Base material surface 6 ... Floor surface 7 ... Conventional joint member 72 ... Concavity of conventional joint member 71, 73 ... Support part of conventional joint member 8 ... Putty agent 9 ... Wall material S ... Shade T ... Wallpaper seam U ... Base material seam V ... Base material gap

Claims (7)

A bottom joint forming member that forms a bottom joint on the wall surface,
A groove portion formed in the longitudinal direction, and support portions provided along the longitudinal direction on both side surfaces of the groove portion,
The groove part is formed with a bottom part toward the inside of a support part on one side among support parts provided on both side surfaces of the groove part.   The bottom joint forming member according to claim 1, wherein the back surface is formed in a planar shape.   The bottom joint forming member according to claim 1 or 2, wherein the groove is formed by a side wall formed of two opposing flat surfaces.   The bottom joint forming member according to claim 1 or 2, wherein the groove is formed by a side wall formed of two opposing curved surfaces.   The bottom joint forming member according to any one of claims 1 to 4, wherein support portions on both sides sandwiching the groove portion can be separated with the groove portion as a boundary. A bottom joint forming member according to any one of claims 1 to 5 constructed on a base material, and a wallpaper constructed on the bottom joint forming member,
A wall surface structure in which a seam of the wallpaper is accommodated in a groove portion of a bottom joint forming member. It is a construction method of the bottom joint formation member which constructs the bottom joint formation member according to any one of claims 1 to 5 on a wall surface,
A step of applying the bottom joint forming member on a base material;
A step of shaping the boundary between the support portion of the bottom joint forming member and the base material with a putty agent;
A method for constructing a joint joint forming member, comprising: a step of constructing a wallpaper on a base material on which the joint joint forming member is constructed.

Images