JP7141773B1 - Internal seam processing method and its structure - Google Patents

Abstract

The present invention provides an interior seam processing method and its structure capable of reducing the risk of cracks occurring in the surface joint putty. An interior joint processing method arranges first and second interior boards 1 and 2 adjacent to each other and forms a groove-like joint 3 between the first and second interior boards 1 and 2. a filling step of filling the joint portion 3 with an indeterminate sealing material to form a filling portion 4 after the joint forming step; and after the filling step, the first and second and a putty application step of applying joint putty to the ends of the interior boards 1 and 2 to form a joint putty layer 8 . [Selection drawing] Fig. 3

Description

The present invention relates to an interior seam processing method and structure for processing seams of interior boards.

Conventionally used methods of this type include, for example, the method described in Non-Patent Document 1 below. That is, in the conventional method, first and second interior boards are placed adjacent to each other and a grooved seam is formed between the first and second interior boards. After filling the seams with joint putty, tape is applied over the joint putty. After that, joint putty is applied to the ends of the first and second interior boards so as to straddle the joint. The joint putty is applied in two coats, an intermediate coat and a top coat.

"Gypsum Board Installation Manual - Wooden Base/Steel Base - 2013 Edition" Gypsum Board Industry Association

In the conventional method as described above, the first and second interior boards are integrated by applying a tape after filling the seam with joint putty. However, when the first and second interior boards are subjected to vibration such as an earthquake, the joint putty on the surface layer may crack due to the inability to cope with the distortion and stress.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and one of its objects is to provide an interior seam processing method and its structure that can reduce the risk of cracks occurring in the surface joint putty. is.

In one embodiment of the interior seam processing method according to the present invention, the end faces of the first and second interior boards are arranged adjacent to each other, and a groove-shaped seam is formed between the first and second interior boards. a seam forming step of forming a seam, a filling step of filling the seam with an indeterminate sealing material to form a filling portion after the seam forming step, and after the filling step, the first and second interior parts so as to straddle the seam and a putty application step of applying joint putty to the edge of the board to form a joint putty layer.

In one embodiment, an interior seam structure according to the present invention comprises first and second interior boards having respective end faces adjacent to each other and grooves formed between the first and second interior boards. a shaped joint portion, a filling portion containing an amorphous sealing material filled in the joint portion, and a sealing material positioned above the filling portion and applied to the ends of the first and second interior boards so as to straddle the joint portion. and a joint putty layer containing joint putty.

According to one embodiment of the interior seam processing method and structure of the present invention, since the seams are filled with the amorphous sealing material to form the filled portions, the first and second interior boards are protected against vibrations such as earthquakes, for example. When subjected to , distortion and stress can be absorbed by the irregular sealing material of the filling part. As a result, it is possible to reduce the risk of cracks occurring in the surface joint putty layer.

1 is a front view of an internal seam structure according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of the interior seam structure of FIG. 1; FIG. 1 is an explanatory diagram showing an internal seam processing method according to an embodiment of the present invention; FIG.

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated with reference to drawings. The present invention is not limited to each embodiment, and can be embodied by modifying the constituent elements without departing from the scope of the invention. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in each embodiment. For example, some components may be deleted from all the components shown in the embodiments. Furthermore, components of different embodiments may be combined as appropriate.

First, an internal joint structure according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 is a front view showing an internal joint structure according to an embodiment of the present invention, and FIG. 2 is a sectional view of the internal joint structure of FIG. In addition, in FIG. 1, the configuration of each part is shown in a partially omitted state for easy understanding. The filling part 4, the paper tape 5, the reinforcing tape 6, the sealing layer 7 and the joint putty layer 8, which will be described later, can extend up to the upper ends of the first and second interior boards 1 and 2 in FIG.

Hereinafter, the configuration of each part may be described using terms such as the vertical direction D1, the horizontal direction D2, and the front/back direction D3. These vertical direction D1, horizontal direction D2, and front/back direction D3 may be directions orthogonal to each other. The longitudinal direction D1, the lateral direction D2, and the front/back direction D3 are directions defined according to the orientation of FIG. 1 for the sake of explanation, and do not limit the orientation of the interior seam structure. For example, the longitudinal direction D1 may be along a vertical direction, but may also be along a horizontal direction depending on the internal seam construction implementation. The vertical direction D1, the horizontal direction D2, and the front/back direction D3 may be referred to as first to third directions.

The interior seam structure of this embodiment can form part of the interior of a building, such as a building or a house. The interior can include interior walls and ceilings. As shown in FIGS. 1 and 2, the interior seam structure of the present embodiment includes a first interior board 1, a second interior board 2, a seam portion 3, a filling portion 4, a paper tape 5, a reinforcing tape 6, a sealing It comprises a layer 7 and a joint putty layer 8 .

The first and second interior boards 1 and 2 are plate-like members that can be made of, for example, gypsum board, veneer board, calcium silicate board, or the like. The first and second interior boards 1, 2 are arranged adjacent to each other. More specifically, the first and second interior boards 1 and 2 are arranged so that their ends are adjacent to each other. The first and second interior boards 1, 2 may be arranged along interior substrates such as posts, studs, furring strips or joists. Although the first and second interior boards 1 and 2 are shown in FIGS. 1 and 2, another interior board is further arranged so as to be adjacent to these first and second interior boards 1 and 2. good.

As particularly visible in FIG. 2, the ends of the first and second interior boards 1, 2 are provided with a surface 11, an end surface 12 and an inclined surface 13. As shown in FIG.

The surface 11 is one side of the first and second interior boards 1 and 2 in the front-back direction D3, and extends in the vertical direction D1 and the horizontal direction D2. The surface 11 may face the interior space of the building when the first and second interior boards 1, 2 are placed along the interior lining.

The end surface 12 is one side of the first and second interior boards 1 and 2 in the horizontal direction D2, and extends in the vertical direction D1 and the front/back direction D3. The first and second interior boards 1 and 2 are arranged so that their end faces 12 are adjacent to each other. The extension width of the end surface 12 in the front-back direction D3 is narrower than the plate thickness of the first and second interior boards 1 and 2 . The plate thickness of the first and second interior boards 1 and 2 can be the distance between the front surface 11 and the back surfaces of the first and second interior boards 1 and 2 (not shown) in the front-back direction D3. .

The inclined surface 13 is a surface that extends in the vertical direction D1 while being inclined with respect to the horizontal direction D2 and the front-back direction D3. are connected. The inclined surface 13 can be understood as a surface as if the corners of the ends of the first and second interior boards 1 and 2 were chamfered.

The joint portion 3 is a groove-shaped portion (space) formed between the first and second interior boards 1 and 2 . The joint portion 3 can extend from one end to the other end of the first and second interior boards 1 and 2 in the longitudinal direction D1. Although not shown, a seam 3 is also formed between the first or second interior board 1, 2 and another interior board adjacent to the first or second interior board 1, 2. can be As noted above, the term longitudinal direction D1 is a direction defined according to the orientation of FIG. The extending direction may be any direction such as vertical, horizontal or oblique. The joint portion 3 can be defined by a surface extending the surface 11 of the first and second interior boards 1 and 2 and an inclined surface 13 . The joint portion 3 of the present embodiment has a triangular cross-sectional shape in a plane perpendicular to the longitudinal direction D1 (the plane shown in FIG. 2). However, the cross-sectional shape of the seam portion 3 is arbitrary, and may be, for example, rectangular or other shape such as a flatter triangular shape than the shape shown in FIG. That is, the shapes of the ends of the first and second interior boards 1 and 2 may also take other shapes.

The filling portion 4 is a portion containing the amorphous sealing material filled in the joint portion 3 . The amorphous sealing material of the filling portion 4 may be provided only in the joint portion 3 , but the amorphous sealing material of the filling portion 4 in this embodiment is provided so as to overflow from the joint portion 3 . That is, the filling portion 4 of the present embodiment has a main body 41 provided inside the joint portion 3 and an overflow portion 42 provided integrally with the main body 41 and overflowing from the joint portion 3 .

The irregular sealing material of the filling portion 4 or main body 41 preferably fills the joint portion 3 . However, the filling portion 4 or body 41 may also include other features such as air bubbles. For example, in the plane orthogonal to the longitudinal direction D1, the irregular sealing material of the filling portion 4 or the main body 41 preferably occupies 50% or more of the space of the joint portion 3, more preferably 70% or more, and 90%. It is more preferable to occupy more than

The overflow 42 may extend beyond the edge of the seam 3 on the surface 11 of the first and second interior boards 1, 2 with respect to the lateral direction D2. The overflow portion 42 may have a thickness in the front-back direction D3 so as to increase the thickness of the main body 41 as shown in FIG. However, although the overflow portion 42 extends over the surfaces 11 of the first and second interior boards 1 and 2, the overflow portion 42 may be in the form of a thin film whose thickness in the front and back direction D3 is extremely thin. At this time, the surfaces 11 of the first and second interior boards 1 and 2 and the upper surface of the filling portion 4 can be substantially flush with each other.

The paper tape 5 is positioned between the filling portion 4 and the joint putty layer 8, and is attached to the ends of the first and second interior boards 1 and 2 so as to straddle the joint portion 3 from above the filling portion 4. there is The paper tape 5 may cover the filling portion 4 when the paper tape 5 is viewed along the front-back direction D3. The width of the paper tape 5 in the lateral direction D2 is wider than the width of the filling portion 4 in the lateral direction D2, and the paper tape is attached to the surfaces 11 of the first and second interior boards 1 and 2 outside the filling portion 4 in the lateral direction D2. 5 may be in direct contact.

The paper tape 5 can have a strip-shaped paper substrate and an adhesive layer provided on the surface (one side) side of the paper substrate. The paper substrate may be composed of Japanese paper. The paper tape 5 can be attached to the ends of the first and second interior boards 1 and 2 and the filling portion 4 by the adhesive strength of the adhesive layer.

The paper tape 5 may further have a back surface treatment layer provided on the back surface (the other side) of the paper base material. The back surface treatment layer is a treatment layer for allowing the adhesive layer of the paper tape 5 outside the coil to be easily peeled off from the back surface of the paper tape 5 inside the coil when the paper tape 5 is wound in a coil shape. . The back surface treatment layer can be formed by coating or impregnating the back side of the paper substrate with a release agent, and may be called a release layer. A masking tape can be used as the paper tape 5 .

The reinforcing tape 6 is positioned between the paper tape 5 and the joint putty layer 8 and is attached to the ends of the first and second interior boards 1 and 2 so as to straddle the joint 3 . The reinforcing tape 6 can be a belt-like mesh member. The reinforcement tape 6 may cover the paper tape 5 when the mesh of the reinforcement tape 6 is removed and the reinforcement tape 6 is viewed along the front-back direction D3. The width of the reinforcing tape 6 in the lateral direction D2 is wider than the width of the paper tape 5 in the lateral direction D2, and the reinforcing tape is attached to the surfaces 11 of the first and second interior boards 1 and 2 outside the paper tape 5 in the lateral direction D2. 6 may be in direct contact.

The reinforcing tape 6 can have a mesh-like base material and an adhesive layer provided on the mesh-like surface (one side) side. The substrate may be composed of, for example, a glass substrate or the like. The reinforcing tape 6 can be attached to the edges of the first and second interior boards 1 and 2 and the paper tape 5 due to the adhesive strength of the adhesive layer.

The reinforcing tape 6 can have a central portion 61 attached to the back of the paper tape 5 and side edges 62 attached to the ends of the first and second interior boards 1,2. The adhesion strength of the central portion 61 to the back surface of the paper tape 5 may be weaker than the adhesion strength of the side edge portions 62 to the ends of the first and second interior boards 1 and 2 . That is, in a state in which the side edges 62 are adhered to the edges of the first and second interior boards 1 and 2, the central portion 61 is peeled off from the back surface of the paper tape 5 or slipped on the back surface of the paper tape 5. may be possible. When the paper tape 5 has a back surface treatment layer, the adhesive strength of the central portion 61 can be weakened more reliably.

The sealing layer 7 is positioned between the paper tape 5 and the joint putty layer 8, and is applied to the ends of the first and second interior boards 1 and 2 so as to straddle the joint 3 from above the reinforcing tape 6. This is the part containing the amorphous sealing material. The sealing layer 7 may penetrate the mesh of the reinforcing tape 6 . The width of the sealing layer 7 in the lateral direction D2 is wider than the width of the reinforcing tape 6 in the lateral direction D2, and the outer side of the reinforcing tape 6 in the lateral direction D2 is attached to the surfaces 11 of the first and second interior boards 1 and 2. The sealing layer 7 may be in direct contact.

In the embodiment shown in FIG. 2 the sealing layer 7 is thicker than the reinforcing tape 6 . That is, the back surface of the reinforcing tape 6 is covered with the sealing layer 7 . However, the thickness of the sealing layer 7 may be less than or equal to the thickness of the reinforcing tape 6 . A sealing layer 7 may be provided in the thickness of the reinforcing tape 6 . When the reinforcing tape 6 and the sealing layer 7 are viewed along the front-back direction D3, the back surface of the reinforcing tape 6 may be covered with the sealing layer 7, while the mesh-like outline of the reinforcing tape 6 may stand out.

The amorphous sealing material contained in the filling portion 4 and the sealing layer 7 may be various sealing materials such as a silicone sealing material, but is preferably a polyurethane or modified silicone sealing material. The amorphous sealant may be a one-component sealant, but may also be a two-component sealant. The amorphous sealing material is preferably a reaction-curing sealing material. In the case of one-component type sealant, there may be mentioned a moisture-curing type that reacts with moisture in the air and cures. Further, in the case of the two-component sealant, a mixed reaction curing sealant in which the base reacts with the curing agent and cures can be used.

The joint putty layer 8 is positioned on the filling portion 4, the paper tape 5, the reinforcing tape 6, and the sealing layer 7, and is applied to the ends of the first and second interior boards 1 and 2 so as to straddle the joint portion 3. This is the part that contains the joint putty. The joint putty layer 8 of the present embodiment has an undercoat putty layer 81 and a topcoat putty layer 82 provided on the undercoat putty layer 81 . The width of the undercoat putty layer 81 in the lateral direction D2 is wider than the width of the sealing layer 7 in the lateral direction D2, and the width of the topcoat putty layer 82 in the lateral direction D2 is greater than the width of the undercoat putty layer 81 in the lateral direction D2. It's good to be wide. Either one of the undercoat putty layer 81 and the topcoat putty layer 82 may be omitted, and the joint putty layer 8 may be composed of a single layer. Conversely, the joint putty layer 8 may be composed of three or more layers.

Next, an internal seam processing method according to an embodiment of the present invention will be described with reference to FIG. FIG. 3 is an explanatory diagram showing the internal seam processing method according to the embodiment of the present invention. The internal seam structure shown in FIGS. 1 and 2 can be manufactured by the internal seam processing method shown in FIG. The internal seam processing method corresponds to a manufacturing method for manufacturing an internal seam structure. The configuration of each part of the interior seam structure manufactured by the interior seam processing method of the present embodiment is as described above.

As shown in FIG. 3, the interior seam processing method of the present embodiment includes (1) a seam forming step, (2) a filling step, (3) a first attaching step, (4) a second attaching step, and (5). It includes a sealing material application step and (6) a putty application step.

The seam forming step is a step of arranging the first and second interior boards 1 and 2 adjacent to each other and forming a groove-shaped seam 3 between the first and second interior boards 1 and 2 . The first and second interior boards 1, 2 are arranged such that the end faces 12 of the respective ends are adjacent to each other.

The filling step is a step of filling the joint portion 3 with an irregular sealing material to form a filling portion 4 after the joint forming step. As described above, the irregular sealing material of the filling portion 4 may be provided so as to overflow the joint portion 3 . The amorphous sealing material can be filled by any method, but can be filled into the joint portion 3 using a jig such as a sealing gun, for example. A masking tape may be attached to both sides of the area where the filling portion 4 is to be formed. Also, the shape of the filling portion 4 can be adjusted with a jig such as a spatula.

The first attaching step is a step of attaching the paper tape 5 to the ends of the first and second interior boards 1 and 2 so as to straddle the joint portion 3 from above the filling portion 4 after the filling step. The first sticking step can be performed after the filling portion 4 is cured. The filling part 4 can be covered by a paper tape 5 .

In the second attaching step, after the first attaching step, a mesh reinforcing tape 6 is attached to the ends of the first and second interior boards 1 and 2 so as to straddle the joint 3 from above the paper tape 5. is.

In the sealing material applying step, after the second attaching step, an amorphous sealing material is applied to the ends of the first and second interior boards 1 and 2 so as to straddle the joint portion 3 from above the reinforcing tape 6 to form a sealing layer. 7 is formed. The amorphous sealing material can be applied by any method. For example, it can be applied roughly using a jig such as a sealing gun and then spread with a jig such as a spatula. An amorphous sealing material can be pushed into the mesh of the reinforcing tape 6. - 特許庁A masking tape may be pasted on both sides of the area where the sealing layer 7 is to be formed.

The putty application step is a step of applying joint putty to the ends of the first and second interior boards 1 and 2 so as to straddle the joint 3 after the second sticking step to form a joint putty layer 8 . The putty application process can be performed after the sealing layer 7 is cured.

Next, the function and effect of each part will be described. The amorphous sealing material of the filling part 4 is softer than the hardened joint putty and has adhesiveness, conformability and/or elasticity. Therefore, when the first and second interior boards 1 and 2 are subjected to vibration such as an earthquake, distortion and stress can be absorbed by the irregular sealing material of the filling portion 4 . As a result, the risk of cracks occurring in the surface joint putty layer 8 can be reduced.

It is also conceivable to fill the joint portion 3 with joint putty instead of the amorphous sealing material. In that case, it is conceivable to use a dry-curing putty as the joint putty. When dry-curing putty is used, depending on conditions such as temperature, the workability is deteriorated and the work time is lengthened, resulting in disturbance in the subsequent process plan. On the other hand, when a reaction hardening type sealing material is used as the amorphous sealing material, the influence of temperature and the like on the curing time of the amorphous sealing material is small. Therefore, by filling the joint portion 3 with the irregular sealing material as described above, it is possible to stabilize the workability and prevent the construction time from becoming longer than expected, which disturbs the later process plan. can be reduced.

In addition, a paper tape 5 is attached to the ends of the first and second interior boards 1 and 2 so as to straddle the joint portion 3 from above the filling portion 4, and a paper tape 5 is attached so as to straddle the joint portion 3 from above the paper tape 5. Since the mesh reinforcement tape 6 is attached to the ends of the first and second interior boards 1 and 2, the risk of cracks occurring in the surface joint putty layer 8 can be more reliably reduced. More specifically, the filling part 4 has a function of absorbing vibrations or rupturing-inducing motions of the first and second interior boards 1 and 2 and attenuating the stress. It functions as if to contain the stress attenuated by the portion 4 . The reinforcing tape 6 has a function like a bridge that connects the first and second interior boards 1 and 2 across the joint 3, and induces vibration or breakage of the first and second interior boards 1 and 2. The amount of stress attenuated by the filling portion 4 that is transmitted to the joint putty layer 8 can be greatly reduced when subjected to a moving motion. This is because the reinforcing tape 6 itself absorbs the stress, and the reinforcing tape 6 exerts an insulating action that makes it difficult to transmit the stress from the filling portion 4 and the like. In addition, since the reinforcing tape 6 is attached, the adhesive strength of the joint putty layer 8 can be improved, and the stability of the joint putty layer 8 can be improved.

In particular, by overlapping the reinforcing tape 6 on the paper tape 5, the adhesion strength of the central portion 61 of the reinforcing tape 6 to the back surface of the paper tape 5 is reduced to the strength of the reinforcing tape 6 to the ends of the first and second interior boards 1 and 2. It can be made weaker than the adhesive strength of the side ends 62 . For this reason, when the first and second interior boards 1 and 2 are subjected to vibration such as an earthquake, the central portion 61 is peeled off from the back surface of the paper tape 5 or slips on the back surface of the paper tape 5, thereby causing the seam to be broken. The stress acting on the portion 3 can be suppressed from being transmitted to the surface joint putty layer 8, and the risk of cracks occurring in the surface joint putty layer 8 can be more reliably reduced.

In addition, since the sealing layer 7 is formed by applying the amorphous sealing material to the ends of the first and second interior boards 1 and 2 so as to straddle the joint 3 from above the reinforcing tape 6, the first and second The integrity of the reinforcing tape 6 to the interior boards 1 and 2 can be improved. In particular, the integrity of the reinforcing tape 6 can be improved while the adhesion strength of the central portion 61 of the reinforcing tape 6 remains weak. Further, when the first and second interior boards 1 and 2 are subjected to vibrations such as an earthquake, distortion and stress can be absorbed by the irregular sealing material of the sealing layer 7, and cracks occur in the surface joint putty layer 8. It is possible to further reliably reduce the risk.

Since the amorphous sealing material is a polyurethane-based or modified silicone-based sealing material, it is difficult to repel water, and the adhesion of the joint putty layer 8 when water-kneaded joint putty is used can be ensured more reliably. Moreover, when the paper tape 5 is attached onto the filling portion 4, the influence on the adhesiveness of the paper tape 5 can be suppressed.

In the embodiment, the interior seam structure includes the first interior board 1, the second interior board 2, the seam portion 3, the filling portion 4, the paper tape 5, the reinforcing tape 6, the sealing layer 7, and the joint putty layer 8. , at least one of the paper tape 5, the reinforcing tape 6 and the sealing layer 7 may be omitted. For example, a joint putty layer 8 may be formed on the filling portion 4 .

Reference Signs List 1: First interior board 2: Second interior board 3: Joint portion 4: Filling portion 5: Paper tape 6: Reinforcing tape 7: Sealing layer 8: Joint putty layer

Claims (12)

a seam forming step of arranging the end surfaces of the first and second interior boards adjacent to each other and forming a groove-shaped seam between the first and second interior boards;
After the joint forming step, a filling step of filling the joint portion with an irregular sealing material to form a filling portion;
After the filling step, a putty application step of applying joint putty to the ends of the first and second interior boards so as to straddle the joint to form a joint putty layer.
Interior seam processing method. The ends of the first and second interior boards are provided with the end face, the surface, and an inclined surface connecting one end of the end face and one end of the surface,
The method of claim 1. After the filling step and before the putty application step,
a first attaching step of attaching a paper tape to the end portions of the first and second interior boards so as to straddle the joint portion from above the filling portion;
After the first attaching step, a second attaching step of attaching a mesh-like reinforcing tape to the ends of the first and second interior boards so as to straddle the joint from above the paper tape.
3. A method according to claim 1 or 2 . After the second attaching step and before the putty applying step, an irregular sealing material is applied to the ends of the first and second interior boards so as to straddle the joint portion from above the reinforcing tape. further comprising a step of applying a sealing material to form a sealing layer;
4. The method of claim 3 . The width of the paper tape is wider than the width of the filling portion, and the paper tape is in direct contact with the surfaces of the first and second interior boards outside the filling portion.
5. A method according to claim 3 or 4. The amorphous sealing material is a polyurethane-based or modified silicone-based sealing material,
6. A method according to any one of claims 1-5 . first and second interior boards having respective end faces adjacent to each other;
a grooved joint formed between the first and second interior boards;
a filling portion containing an amorphous sealing material filled in the joint;
a joint putty layer positioned above the filling part and containing joint putty applied to the ends of the first and second interior boards so as to straddle the joint part;
Interior seam structure. The ends of the first and second interior boards are provided with the end face, the surface, and an inclined surface connecting one end of the end face and one end of the surface,
Interior seam structure according to claim 7. a paper tape positioned between the filling portion and the joint putty layer and attached to the ends of the first and second interior boards so as to straddle the joint portion from above the filling portion;
a mesh-shaped reinforcing tape positioned between the paper tape and the joint putty layer and attached to the ends of the first and second interior boards so as to straddle the joint from above the paper tape; prepare
Interior seam structure according to claim 7 or 8 . A sealing material that is positioned between the paper tape and the joint putty layer and that includes an amorphous sealing material applied to the ends of the first and second interior boards so as to straddle the joint from above the reinforcing tape. further comprising a layer
Interior seam structure according to claim 9 . The width of the paper tape is wider than the width of the filling portion, and the paper tape is in direct contact with the surfaces of the first and second interior boards outside the filling portion.
Interior seam structure according to claim 9 or 10. The amorphous sealing material is a polyurethane-based or modified silicone-based sealing material,
Interior seam structure according to any one of claims 7 to 11 .

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