JPH0821016A - Ant-proof structure of building and construction method therefor - Google Patents

Abstract

PURPOSE:To effectively prevent an ant path formed along the wall surface of a concrete continuous footing from reaching the groundsill install part without an obstacle to a construction work for a building. CONSTITUTION:An ant-proof sheet material 7 which is formed by fixing a resin sheet containing an ant-proof chemical to the lower surface of a covering sheet and has shape retaining property and flexibility is disposed between a concrete continuous footing 2 laid on an under floor ground level 1 and a groundsill 3 placed thereon. The ant-proof sheet material 7 is installed in such a manner that at least one side part thereof is projected sideways over the wall surface of the concrete continuous footing 2. Plural adhesive agent layers 8 for temporarily stopping the ant-proof sheet material 7 are installed on the upper surface of the concrete continuous footing 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a termite-proof structure for a building and a method for constructing the termite-proof structure, in which an upper end portion of a concrete cloth foundation laid on a floor base plate of the building is treated with termite-proofing.

[0002]

2. Description of the Related Art Conventionally, for example, as disclosed in Japanese Utility Model Publication No. 63-18650, a dovetail plate made of a plastic plate is arranged between a concrete cloth foundation and a wooden base,
By projecting one side part of the ant-proof board laterally from the wall surface of the concrete cloth foundation, it is possible to prevent the termite ant path formed along the wall surface of the concrete cloth foundation from reaching the wooden base. It is being blocked by ant boards.

That is, by forming the anti-termite plate from a plastic material having a high hardness and an elastic restoring force, such as 12 nylon, hard vinyl chloride, etc., which is unlikely to cause rusting and corrosion, the above-mentioned anti-termite plate is constructed during construction of a building. It is known that the plate is prevented from being bent and the dovetail plate is provided with a dovetail stopping action for a long period of time.

[0004]

In the dovetail structure described in the above publication, as shown in FIG. 11, the projecting amount of the dovetail plate 21 projecting laterally from the wall surface of the concrete cloth foundation 2 is small. In this case, the dovetails G1 to G7 are formed stepwise along the wall surface of the concrete cloth foundation 2, and finally, as shown in FIG.
As shown in FIG. 2, it is inevitable that a dovetail path G that bypasses the ant-proof plate 21 and reaches the base 3 is formed. In order to prevent such a situation from occurring, it is necessary to set the projecting amount of the dovetail plate 21 projecting laterally from the wall surface of the concrete cloth foundation 2 to be extremely large. There is a problem that it interferes with the construction work of.

Further, when it becomes necessary to stop the work with the termite prevention plate 21 placed on the upper surface of the concrete cloth foundation 2, unless the termite prevention plate 21 is locked by any means, the wind Therefore, there is a problem that the ant-prevention plate 21 is blown off.

The present invention has been made to solve the above-mentioned problems, and an ant road formed along the wall surface of a concrete cloth foundation does not hinder the construction work of a building, and the installation portion of the base is installed. It is an object of the present invention to provide a termite-proof structure for a building and a method of constructing the same, which can effectively prevent the above.

[0007]

The invention according to claim 1 is
A protective sheet formed by fixing a resin sheet containing an anti-termite agent to the lower surface of the covering sheet between the concrete cloth foundation standing on the floor base plate surface and the foundation placed on it. A ant-proof sheet material having formability and flexibility is provided, and at least one side portion of the ant-proof sheet material is installed so as to project laterally from the wall surface of the concrete cloth foundation. An adhesive layer is provided on the upper surface of the foundation for temporarily fixing the anti-termite sheet material.

According to a second aspect of the present invention, in the termite control structure for a building according to the first aspect, the cover sheet of the termite control sheet material is formed of a non-woven fabric.

According to a third aspect of the present invention, a plurality of adhesive layers are installed at intervals on the upper surface of the concrete cloth foundation erected on the floor base plate surface, and then a ant-preventive chemical is applied to the lower surface of the covering sheet. A dovetail-preventing sheet material having a shape-retaining property and flexibility, which is formed by fixing a resin sheet to be contained therein, is joined to the adhesive layer and temporarily fixed, and at least one side portion of the dovetail-proof sheet material Is installed so as to project laterally from the wall surface of the concrete cloth foundation, and the foundation is placed on the ant-proof sheet material.

According to a fourth aspect of the present invention, in the method for constructing an anti-termite according to the third aspect, the end portion of the anti-termite sheet material wound in a roll shape is provided on the adhesive layer installed on the upper surface of the concrete cloth foundation. While temporarily fixing, while laying the termite prevention sheet material along the upper surface of the concrete cloth foundation, align the termite prevention sheet material and the installation part of the anchor bolt protruding on the upper surface of the concrete cloth foundation. Then, after forming a slit serving as an insertion hole for the anchor bolt in the dovetail-proof sheet material, the anchor bolt is inserted through the slit.

[0011]

According to the first aspect of the present invention, the termite-proof sheet material is joined to the adhesive layer installed on the upper surface of the concrete cloth foundation and temporarily fixed to the concrete cloth foundation and the foundation. By being held between them, it was installed in a state in which one side of the ant-proof sheet material laterally protruded from the wall surface of the concrete cloth foundation and contained in the resin sheet of the ant-proof sheet material. The termite repellent action will be exhibited by the termite repellent.

According to the second aspect of the present invention, the presence of the covering sheet made of the non-woven fabric imparts air permeability between the concrete cloth foundation and the foundation, and enables marking on the non-woven fabric. Become.

According to the third aspect of the present invention, the termite-proof sheet material is joined to the adhesive layer provided on the upper surface of the concrete cloth foundation so that the termite-proof sheet material is temporarily positioned. By being stopped and the foundation is placed on the ant-proof sheet material, the ant-proof sheet is sandwiched and held between the concrete cloth foundation and the foundation.
Then, the termite repellent action is exerted by the projecting portion of the termite proof sheet material that laterally projects from the wall surface of the concrete cloth foundation.

According to the fourth aspect of the present invention, the anchor bolt projecting from the upper surface of the concrete-coated foundation and the dovetail-proof sheet material laid on the upper surface of the concrete cloth foundation are aligned with each other, A slit is formed at an appropriate position of the ant-preventive sheet material, and the anchor bolt is inserted into this slit.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a termite proof structure for buildings according to the present invention. This ant-preventive structure comprises a concrete cloth foundation 2 which is erected on the outer peripheral portion of the floor base board surface 1, a base 3 placed above the foundation 3, a furring strip 4 installed on the outer surface side of the base 3, and a drainer. It has a plate 5 and an outer wall plate 6. An anti-termite sheet material 7 is arranged between the concrete cloth foundation 2 and the base 3. Further, an adhesive layer 8 for temporarily fixing the ant-proof sheet material 7 is provided on the upper surface of the concrete cloth foundation 2.

As shown in FIG. 2, the ant-preventive sheet material 7 includes a covering sheet 9 made of non-woven fabric, paper, cloth or synthetic resin film, and a resin sheet 1 fixed to the lower surface thereof.
It is composed of 0 and 0, and has appropriate shape retention and flexibility. That is, the covering sheet 9 is made of a non-woven fabric in which short fiber materials such as polyester resin materials are mutually bonded, and the thickness thereof is set to about 0.16 mm and the density is set to about 85 g / mm ^2. Has been done.

The resin sheet 10 is made of a thermoplastic synthetic resin material such as EVA (ethylene vinyl acetate copolymer) resin or polyethylene resin, and contains 0.5 wt% of organic phosphorus or pyrethroid resin. And the like are mixed with 0.5% by weight of a coloring agent such as titanium or carbon black to form a film, and its thickness is set to about 0.18 mm. The density is set to about 160 to 170 g / mm. The termite repellant is mixed in the base material in a microencapsulated state by being wrapped with a protective film made of a polymer material or an inorganic material.

While the cover sheet 9 and the resin sheet 10 are superposed on each other, while being heated at a temperature of about 110 to 120 ° C., they are supplied to a stamping machine having an embossing roll and a pressing roll and applied. The resin sheet 10 is fused to the lower surface of the covering sheet 9 by being pressed. Then, on the lower surface of the resin sheet 10,
A large number of recesses 11 are formed at regular intervals with respect to a large number of protrusions formed on the surface of the embossing roller.

As described above, the shape retainability is such that it can be prevented from being deformed by its own weight during use, and it is flexible enough to be easily deformed when an external force is applied in use. As a result, the long termite-proof sheet material 7 having properties is formed. The dovetail sheet material 7 is configured to be wound in a roll shape with the resin sheet 10 positioned on the outer surface side.

As shown in FIG. 3, the dovetail-proof sheet material 7 is formed so that its width dimension is longer than the width dimension of the concrete cloth foundation 2 by about 50 mm, and one side portion thereof is a wall surface of the concrete cloth foundation 2. It is configured to be disposed between the concrete cloth foundation 2 and the base 3 in a state of protruding laterally from. Further, the resin sheet 10 containing the above-mentioned ant-preventive agent is set downward, and the resin sheet 10 is bonded to the adhesive layer 8 made of an adhesive material such as butyl rubber and provided on the upper surface of the concrete cloth foundation 2 at predetermined intervals. As a result, the ant-proof sheet material 7 becomes the concrete cloth foundation 2
It is designed to be temporarily fixed to the upper surface of.

In order to construct an anti-termite structure for the above-mentioned building, first, as shown in FIG. 4, a concrete cloth foundation 2 is erected on the outer peripheral portion of the floor base plate surface 1 and the base 3 is placed at a predetermined position thereof. Anchor bolt 12 for locking is installed.
Then, as shown in FIG. 5, the concrete cloth foundation 2
After arranging a plurality of adhesive layers 8 on the upper surface of the concrete at predetermined intervals, as shown in FIG. 6, the ends of the ant-proof sheet material 7 wound in a roll are set on the corners of the concrete cloth foundation 2. By joining to the adhesive layer 8 thus formed, the termite-proof sheet material 7 is temporarily fixed in a positioned state.

Thereafter, as shown in FIG. 7, the ant-proof sheet material 7 wound in a roll is unwound to lay the ant-proof sheet material 7 along the upper surface of the concrete cloth foundation 2 while the ant-proof sheet material 7 is laid. With the sheet material 7 and the installation portion of the anchor bolt 12 aligned, the anchor bolt 12
The slits 13 serving as the insertion holes are formed in the ant-proof sheet material 7 using a cutter knife or the like.

Then, as shown in FIGS. 8 and 9, by inserting the anchor bolts 12 into the slits 13 and laying the termite-proof sheet material 7 on the entire upper surface of the concrete cloth foundation 2, the indoor part side thereof is formed. The termite-proof sheet material 7 is installed in a state in which the side edges of the are projected laterally from the wall surface of the concrete cloth foundation 2.

Incidentally, the corner portion of the concrete cloth foundation 2,
Alternatively, in order to prevent a gap from being formed between the pair of termite-proof sheet materials 7 located at the intersections of the concrete cloth foundation 2 and the like, one end of both termite-proof sheet materials 7 is placed on the other end. It is desirable to install them in a stacked state. Further, when the termite-proof sheet material 7 is interrupted when the termite-proof sheet material 7 is laid, it is desirable to install the new termite-proof sheet material 7 in a state of being superposed on the rear end portion thereof.

Next, after marking the line 14 indicating the installation position of the base 3 on the upper surface of the ant-preventive sheet material 7, that is, the surface of the covering sheet 9 made of non-woven fabric, the line 14 is used as a reference. Then, the base 3 is set on the ant-proof sheet material 7, the base 3 is locked by the anchor bolts 12, and the furring strip 4, the drain plate 5, and the outer wall plate 6 are provided.
By attaching the, the termite proof structure of the building as shown in FIG. 1 can be obtained.

As described above, between the concrete cloth foundation 2 and the base 3 placed on the concrete cloth foundation 2, on the lower surface of the covering sheet 9 made of non-woven fabric or the like having shape retention and flexibility, an anti-termite chemical is applied. A state in which an anti-termite sheet material 7 formed by fixing a resin sheet 10 containing is disposed, and the side edge portion on the indoor side of the anti-termite sheet material 7 is projected to the side of the wall surface of the concrete cloth foundation 2. Since it was installed in the
By covering the lower surface of the base 3, it is possible to effectively protect the base 3 from the damage of termites and the corrosion due to moisture, and along the wall surface of the concrete cloth foundation 2 without hindering the construction work of the building. It is possible to effectively prevent the formed dovetail from reaching the installation portion of the base 3.

That is, since the termite-preventing sheet material 7 has a proper shape-retaining property, the side portions of the termite-preventing sheet material 7 can be maintained in the protruding state and the termite-preventing sheet material 7 can be maintained. Due to the termite repellent action of the termite repellent mixed in the resin sheet 10 constituting the above, it is possible for termites to crawl on the upper end of the concrete cloth foundation 2 without increasing the amount of protrusion of the termite terminator sheet material 7. Can be prevented. Therefore, the ant road leading to the installation portion of the base 3 is formed by the ant-proof sheet material 7 without causing a situation in which the construction work of the building is obstructed as in the case where the ant-proof plate having a large protruding amount is provided. It can be surely prevented.

Moreover, since the above-mentioned ant-proof sheet material 7 is made to have an appropriate degree of flexibility so that it can be easily deformed, the ant-proof sheet material 7 is prevented from interfering with the installation work of the base 3. In addition, it is possible to effectively prevent the termite prevention sheet material 7 from being damaged by external force.

Since the ant-proof sheet material 7 is temporarily fixed by the adhesive layer 8 provided on the upper surface of the concrete cloth foundation 2, the ant-proof sheet material 7 is placed on the upper surface of the concrete cloth foundation 2. It is possible to perform accurate positioning and properly set the protrusion amount of the side portion. Further, the locking force of the adhesive layer 8 makes it possible to stably maintain the installation state of the ant-proof sheet material 7, so that the ant-proof sheet material 7 is installed on the upper surface of the concrete cloth foundation 2. Thus, even when it is necessary to stop the construction work of the building, it is possible to effectively prevent the ant-preventive sheet material 7 from being blown off by the wind. On a windy day, the number of the adhesive layers 8 can be increased to more reliably prevent the termite sheet material 7 from peeling off.

When the cover sheet 9 of the ant-preventive sheet material 7 is formed of a non-woven fabric as described above, the non-woven fabric provides air permeability between the concrete cloth foundation 2 and the base 3. be able to. Moreover, it is possible to easily carry out marking on the upper surface of the covering sheet 9 made of the above-mentioned non-woven fabric by using a rope or the like.

Further, as shown in the above embodiment, the resin sheet 10 is formed by using a thermoplastic synthetic resin material as a base material, and the covering sheet 9 and the resin sheet 10 are supplied to an embossing machine having an embossing roll. When the resin sheet 10 is configured to be fused to the lower surface of the cover sheet 9, the cover sheet 9 and the resin sheet 10 can be easily integrated with each other to form the dovetail sheet material 7. In addition, it is possible to effectively impart appropriate shape-retaining property and flexibility to the ant-preventive sheet material 7.

Further, a large number of recesses 11 corresponding to the protrusions formed on the surface of the embossing roll are formed on the resin sheet 10.
Since it can be formed on the lower surface of the concrete-proof sheet material 7, by providing a gap corresponding to the concave portion 11 between the lower surface and the upper surface of the concrete cloth foundation 1 in the installed state of the ant-preventive sheet material 7, ventilation can be made to this portion. It can have sex.

When the termite control agent contained in the resin sheet 10 is microcapsulated by wrapping it with a protective film made of a polymer material or an inorganic material, the resin sheet is used. It is possible to effectively prevent the drug efficacy of the ant-preventive drug from being lost during heating of 10, and to maintain the drug efficacy over a long period of time.
It is possible to prevent the offensive odor of the chemicals from being generated when the termite sheet 7 is used.

Instead of fusing the resin sheet 10 to the lower surface of the cover sheet 9 as described above, the cover sheet 9 and the resin sheet 10 may be bonded with an adhesive or the like.

Further, at the time of construction of the above-mentioned ant-proof structure, the ant-proof sheet material 7 wound in a roll shape is unrolled, so that the ant-proof sheet material 7 is laid along the upper surface of the concrete cloth foundation 2 and When the dovetail sheet material 7 and the installation portion of the anchor bolt 12 are aligned with each other, the slit 13 which is the insertion hole of the anchor bolt 12 is formed in the termite sheet material 7, In, the insertion hole can be easily and accurately formed in the dovetail-proof sheet material 7 at a position corresponding to the installation portion of the anchor bolt 12.

In the above embodiment, an example in which the side portion of the termite-proof sheet material 7 is projected only on the indoor side where the termite path of termites is likely to be formed has been described. Both side portions of the ant-proof sheet material 7 may be projected on both sides. Further, when the indoor part is subjected to an anti-termite treatment by laying an anti-termite sheet on the floor base plate surface 1 in the indoor part or by spraying an anti-termite chemical, the side of the anti-termite sheet material 7 You may comprise so that a side part may be made to protrude only to the outdoor part side.

Further, in the above embodiment, an example in which the ant-preventive sheet material 7 is arranged on the upper surface of the concrete cloth foundation 2 laid on the outer peripheral portion of the floor base board surface 1 has been described, but as shown in FIG. The structure may be such that the ant-preventive sheet material 7 is arranged on the upper surface of the concrete cloth foundation 2a located indoors. In this case, on the left and right wall surfaces of the concrete cloth foundation 2a,
Since the dovetail may be formed, it is desirable to have a structure in which the left and right side portions of the anti-termite sheet material 7 are projected to the side of the concrete cloth foundation 2a.

[0038]

As described above, the invention according to claim 1 provides a termite-preventing agent on the lower surface of the covering sheet made of non-woven fabric or the like between the concrete cloth foundation and the base placed on the concrete cloth foundation. A termite-proof sheet material having shape retention and flexibility formed by fixing a resin sheet containing is disposed, and the side edges of the termite-proof sheet material are laterally extended from the wall surface of the concrete cloth foundation. Since it is configured to be installed in a projecting state, the dovetail path formed along the wall surface of the concrete cloth foundation can effectively reach the installation part of the base without hindering the construction work of the building. Can be prevented.

Further, since the termite-proof sheet material is configured to be temporarily fixed by the adhesive layer installed on the upper surface of the concrete cloth foundation, the termite-proof sheet material is accurately positioned on the upper surface of the concrete cloth foundation, The amount of protrusion of the side portion can be set appropriately, and the locking state of the adhesive layer can stably maintain the installed state of the termite-proof sheet material. Therefore, even when it is necessary to stop the construction work of the building with the above-mentioned ant-proof sheet material installed on the upper surface of the concrete cloth foundation, it is possible to effectively prevent the ant-proof sheet material from being blown away by the wind. There is an advantage that it can be prevented.

Further, in the invention according to claim 2, since the covering sheet of the termite-proof sheet material is formed by the non-woven fabric, the air permeability of the non-woven fabric allows the concrete cloth foundation and the base 3 to be breathable. be able to. Moreover, there is an advantage that marking can be easily performed on the upper surface of the covering sheet 9 made of the non-woven fabric by using a marking rope or the like.

According to a third aspect of the present invention, after a plurality of adhesive layers are installed at intervals on the upper surface of the concrete cloth foundation erected on the floor base board surface, the covering sheet and the resin sheet are separated from each other. The ant-proof sheet material is joined to the adhesive layer for temporary fixing, and at least one side of the ant-proof sheet material is projected laterally from the wall surface of the concrete cloth foundation. Since the base is placed on the sheet material, it is possible to easily and accurately install the above-mentioned ant-preventive sheet material, and the construction work of the building is not hindered. It is possible to effectively prevent the dovetail path formed along the base line from reaching the installation portion of the base by the above-mentioned dovetail sheet material.

Further, the invention according to claim 4 is such that, in a state in which the ends of the ant-proof sheet material wound in a roll shape are joined to the adhesive layer and temporarily fixed, the ant-proof is carried along the upper surface of the concrete cloth foundation. While laying the sheet material, the dovetail sheet material and the installation part of the anchor bolt are aligned with each other, and the slits, which are the insertion holes of the anchor bolt, are formed in the dovetail sheet material. The insertion hole can be easily and accurately formed in the dovetail-proof sheet material at a position corresponding to the installation portion of the anchor bolt on the site, and a displacement occurs between the insertion hole and the installation portion of the anchor bolt. It is possible to reliably prevent such a situation.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a termite-proof structure for buildings according to the present invention.

FIG. 2 is a cross-sectional view showing the structure of an anti-termite sheet material.

FIG. 3 is a cross-sectional view showing an installed state of a termite-proof sheet material.

FIG. 4 is a first process diagram showing an embodiment of a method for constructing a termite proof according to the present invention.

FIG. 5 is a second step diagram of the method for applying the termite proof.

FIG. 6 is a third process diagram of the above-mentioned method of applying a termite proof.

FIG. 7 is a fourth process diagram of the above-mentioned method of applying a termite proof.

FIG. 8 is a fifth step diagram of the above-mentioned method for constructing an anti-termite.

FIG. 9 is a sixth step diagram of the above-mentioned method of applying a termite proof.

FIG. 10 is a cross-sectional view showing another embodiment of the termite proof structure for buildings according to the present invention.

FIG. 11 is an explanatory diagram showing a process of forming an ant road.

FIG. 12 is a cross-sectional view showing a state in which a dovetail path is formed.

[Explanation of reference signs] 1 Floor base plate surface 2 Concrete cloth foundation 3 Base 7 Dovetail sheet material 8 Adhesive layer 9 Cover sheet 10 Resin sheet 12 Anchor bolt 13 Slit

Claims (4)

[Claims] 1. A resin sheet containing an anti-termite agent is fixed to the lower surface of a covering sheet between a concrete cloth foundation erected on the floor base plate surface and a base placed on the concrete cloth foundation. The shape-preserving and flexible ant-proof sheet material formed by arranging is installed, and at least one side of this ant-proof sheet material is installed in a state where it projects laterally from the wall surface of the concrete cloth foundation. At the same time, an anti-termite structure for buildings is provided with an adhesive layer for temporarily fixing the anti-termite sheet material on the upper surface of the concrete cloth foundation. 2. The termite-proof structure for a building according to claim 1, wherein the cover sheet of the termite-proof sheet material is formed of a non-woven fabric. 3. A plurality of adhesive layers are placed at intervals on the upper surface of a concrete cloth foundation erected on the floor base plate surface, and then a resin sheet containing an anti-termite agent is fixed to the lower surface of the covering sheet. The termite-preventing sheet material having shape retention and flexibility formed by joining is temporarily fixed to the adhesive layer, and at least one side portion of the termite-preventing sheet material is formed of the concrete cloth foundation. A method for constructing a termite-proof structure for a building, characterized in that a foundation is placed on the termite-proof sheet material in a state of being installed so as to project laterally from a wall surface. 4. Along the upper surface of the concrete cloth foundation in a state where an end of a dove-proof sheet material wound in a roll shape is joined and temporarily fixed to an adhesive layer installed on the upper surface of the concrete cloth foundation. While laying the termite-proof sheet material, align the termite-proof sheet material with the installation portion of the anchor bolt projecting on the upper surface of the concrete cloth foundation, and make the slit that becomes the insertion hole of the anchor bolt above. The method according to claim 3, wherein an anchor bolt is inserted through the slit after forming the ant-proof sheet material.