JP2019031814A - Airtight holding member and airtight holding method - Google Patents

Abstract

To provide an airtight holding member capable of stably holding the airtightness of the underfloor provided with a base via a vibration control device on the foundation, and an airtight holding method using the airtight holding member.SOLUTION: An airtight holding member for maintaining airtightness of the underfloor provided with a base through a vibration control device on a foundation of a building provides a first plate portion fixed to an outside surface of a base forming an outer side of the building or an outer surface of a load bearing material formed on the outer side of the building than the outside surface of the base, and a second plate portion which intersects the first plate portion and is provided apart from the foundation. The second plate portion is in contact with a portion of the base bottom surface facing the foundation, and the second plate portion is provided with an elastic member formed extending toward the foundation, with a tip end portion being in contact with the foundation, and closing a gap between the foundation and the base.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an airtight holding member and an airtight holding method.

  In a building such as a house, a base is often provided on a foundation via a vibration control device for the purpose of suppressing damage due to an earthquake (for example, Patent Document 1). By providing a vibration control device, even if the foundation shakes greatly, the shaking of the foundation is reduced. On the other hand, if a vibration damping device is provided between the foundation and the foundation, a gap is generated between the foundation and the foundation, so that the airtightness under the floor cannot be maintained as it is.

  In houses and the like, high airtightness may be required not only indoors but also under the floor from the viewpoint of energy saving and improvement of comfort. As a method for improving the airtightness under the floor, for example, a method of attaching an airtight sheet so as to cover the gap between the foundation and the base, or sealing the gap with urethane foam or the like is known (for example, Patent Documents). 2). However, when a vibration damping device is installed between the foundation and the foundation, applying such an airtight holding method will cause the foundation and foundation to swing differently depending on the vibration damping device during an earthquake. There is a problem that the airtightness is lowered due to damage to the like.

JP 2003-166297 A JP-A-8-338079

  An object of the present invention is to provide an airtight holding member capable of stably holding an airtightness under a floor in which a foundation is provided on a foundation via a vibration damping device, and an airtight holding method using the airtight holding member. And

The hermetic holding member of the present invention has the following configuration.
An airtight holding member for maintaining airtightness under a floor in which a foundation is provided on a foundation of a building via a vibration control device, the outer surface of the foundation forming the outside of the building or the outer surface of the foundation A first plate portion fixed to the outer surface of the load bearing surface material formed on the outside of the building, and a second plate that intersects the first plate portion and is spaced apart from the foundation. And an elastic member that extends toward the foundation, has a tip portion in contact with the foundation, and closes a gap between the foundation and the base. It is characterized by.

  Moreover, in this invention, it is preferable that the said 2nd board part is in contact with a part of base bottom or load bearing surface bottom face which opposes the said foundation.

  Moreover, in this invention, it is preferable that the said elastic member is formed from the material containing a termite-proofing agent.

  Moreover, in this invention, it is preferable that the said elastic member is formed so that it may incline toward the outer side of the said building toward the front-end | tip part from the attachment part to the said 2nd board part.

The airtight holding method of the present invention has the following configuration.
An airtight holding method for maintaining airtightness under a floor in which a foundation is provided on a foundation via a vibration control device using the airtight holding member according to each of the above items, wherein the foundation outer surface or the load bearing surface The first plate portion is fixed to the outer surface of the material.

According to the airtight holding member of the present invention, the airtightness under the floor in which the foundation is provided on the foundation via the vibration control device can be stably held.
Moreover, according to the airtight holding method of the present invention, the airtightness under the floor where the foundation is provided on the foundation via the vibration control device can be stably held.

It is the perspective view which showed an example of the airtight holding member of this invention. It is sectional drawing which shows the example which attached the airtight holding member shown in FIG. 1 to the base part of a building. It is sectional drawing which shows the example which attached the airtight holding member shown in FIG. 1 to the load-bearing surface material of the building.

  Hereinafter, an airtight holding member and an airtight holding method using the same according to an embodiment of the present invention will be described with reference to the drawings. Each embodiment described below is specifically described for better understanding of the gist of the invention, and does not limit the present invention unless otherwise specified. In addition, in the drawings used in the following description, in order to make the features of the present invention easier to understand, there is a case where a main part is shown in an enlarged manner for convenience, and the dimensional ratio of each component is the same as the actual one. Not necessarily.

  The airtight holding member of the present invention is a member for maintaining the airtightness under the floor in which a foundation is provided on a foundation via a vibration damping device or a seismic isolation device. The hermetic holding member of the present invention includes two plate portions (substrates) orthogonal to each other and an elastic member serving as an airtight packing. The plate portion includes a first plate portion and a second plate portion that are provided so that their plane directions intersect each other.

  A 1st board part is on the outer surface of the load-bearing surface material formed in the outer side of a building rather than the side surface (henceforth a foundation outer surface) which becomes the outer surface side of a building among foundations, or a foundation outer surface. Airtightly fixed. The second plate portion is a bottom surface (hereinafter referred to as a base bottom surface) of the base, the portion closer to the base than the portion intersecting with the first plate portion, or the top surface of the foundation of the load bearing surface material. In contact with the bottom surface (hereinafter referred to as the load bearing surface bottom surface). The elastic member serving as the airtight packing is a long member that is fixed to the second plate portion and provided to protrude toward the upper surface of the foundation. The protruding tip portion of the elastic member is pressed against the upper surface of the foundation. The number of elastic members provided on the second plate part may be one or two or more.

  When the airtight holding member of the present invention is used to maintain the airtightness under the floor where the foundation is provided on the foundation via the vibration damping device or the seismic isolation device, the elastic member in the airtight holding member of the present invention is The first plate portion is fixed to the outer surface of the foundation or the load bearing member while being pressed against the upper surface of the foundation. At this time, it fixes so that the part near a base rather than the part which cross | intersected the 1st board part of the 2nd board part may contact a base bottom face or a load bearing surface bottom face.

  The elastic member constituting the airtight holding member of the present invention is fixed to the base via the first plate portion and the second plate portion, and the tip portion can be separated from the foundation by elastic force. It is only pressed and not fixed.

  In the present invention, the first plate portion and the second plate portion intersect perpendicularly (that is, 90 °). The term “perpendicular” here includes a slight error, and is approximately 88. It is also assumed that the embodiment intersects substantially vertically in the range of about ° to 92 °.

(Airtight holding member)
Hereinafter, an example of the airtight holding member and the airtight holding method according to the present invention will be described in more detail.
FIG. 1 is an external perspective view showing a configuration of an airtight holding member according to an embodiment of the present invention. Moreover, FIG. 2 is sectional drawing which shows the state which attached the airtight holding member shown in FIG. 1 to the load-bearing surface material of the building.
In addition, the airtight holding member 1 of this embodiment is used suitably for buildings, such as a detached house, for example, and in this embodiment, the foundation part of a building is on the foundation 21, as shown in FIG. A base 23 is provided via a vibration control device 22.

  As shown in FIGS. 1 and 2, the airtight holding member 1 of the present embodiment includes a flat plate-like long substrate 10 and an elastic member 15 serving as an airtight packing. The substrate 10 includes a first plate portion 11 and a second plate portion 12.

  The first plate portion 11 is a long plate material. In the present embodiment, the first plate portion 11 is a load bearing surface material that is an inner wall of a building provided in contact with a base outer surface 23a that is an outer side of the building of the base 23 having a rectangular cross section at the time of construction. It is airtightly fixed to the outer surface 24a of 24. That is, the 1st board part 11 is fixed so that it may spread along a perpendicular direction (vertical direction).

The length of the 1st board part 11 is not specifically limited, According to the length of the foundation 21 or the base 23, the distance of the foundation 21 and the base 23, etc., it can set suitably. The length (length along the base longitudinal direction) of the first plate portion can be set to 900 to 3600 mm, for example.
Moreover, the thickness of the 1st board part 11 is not specifically limited, According to the rigidity etc. which are calculated | required by the 1st board part 11, it can set suitably. The thickness of the first plate portion can be set to 0.5 to 2.5 mm, for example.

  In addition, it is also preferable to form one or more protrusions (not shown) on the first plate portion 11 along the longitudinal direction. Thereby, the rigidity of the 1st board part 11 can be improved and the airtightness under a floor can be hold | maintained more stably.

  The second plate portion 12 is a long plate material formed integrally with the first plate portion 11. The 2nd board part 12 is provided so that it may cross | intersect at right angles with respect to the lower end of the 1st board part 11, and may extend along a horizontal direction in an attachment state.

The front view shape of the second plate portion 12 as viewed from the first plate portion 11 side is a rectangular shape. In addition, the front view shape of the 2nd board part 12 is not limited to a rectangular shape, You may become arbitrary shapes.
As for this 2nd board part 12, it is preferable that the part near the base 23 rather than the 1st board part 11 and cross | intersection part in the attachment state among the upper surfaces 12a touches a part or all of the load-bearing face material bottom surface 24b. Thereby, the lower part of the outer surface 24a of the load bearing surface material 24 is covered with the first plate portion 11, and part or all of the load bearing surface material bottom surface 24b connected to the outer surface 24a is covered with the second plate portion 12. It becomes a form.

  The width of the second plate portion 12 can be appropriately set according to the size of the foundation 21 and the base 23, the installation position, and the like. The width | variety of the 2nd board part 12 can be 5-150 mm, for example.

The length of the 2nd board part 12 is not specifically limited, According to the length of the foundation 21 or the base 23, the distance of the foundation 21 and the base 23, etc., it can set suitably. The length of the 2nd board part 12 is the same as the length of the 1st board part 11, and can be 900-3600 mm, for example.
The thickness of the 2nd board part 12 is not specifically limited, According to the rigidity etc. which are calculated | required by the 2nd board part 12, it can set suitably. The thickness of the 2nd board part 12 can be 0.5-2.5 mm, for example.

  In addition, it is also preferable to form one or a plurality of protrusions (not shown) in the second plate portion 12 along the longitudinal direction. Thereby, the rigidity of the 2nd board part 12 can be raised and the under-floor airtightness can be maintained more stably.

The material for forming the first plate portion 11 and the second plate portion 12 is not particularly limited, and for example, hard polyvinyl chloride resin, polypropylene resin, polyethylene resin, polystyrene resin, ABS resin, ASA resin, and PET resin are preferable. .
As a material which forms the 1st board part 11 and the 2nd board part 12, 1 type may be used independently and 2 or more types may be used in combination.

  The elastic member 15 is a long member, and is attached to the lower surface 12 b of the second plate portion 12 that faces the upper surface 21 a of the foundation 21. In the present embodiment, the elastic member 15 is bent in a U-shaped cross section in which a flat elastic sheet is folded back into two, and both ends of the elastic sheet are fixed to the lower surface 12b of the second plate part 12, respectively. It is a member made.

In the attached state, the elastic member 15 has a tip portion 15s where the elastic sheet is folded in contact with the upper surface 21a of the foundation 21 so as to close the gap between the foundation 21 and the base 23 when viewed from the outside of the building. Arranged. Moreover, in this embodiment, the elastic member 15 is formed so that it may incline to the outer side of a building toward the front-end | tip part 15s from the attachment part to the 2nd board part 12 in an attachment state.
And the clearance gap between the foundation 21 and the base 23 is sealed airtight because the front-end | tip part 15s of the elastic member 15 is pressed on the upper surface 21a of the foundation 21. FIG.

  In the present invention, it is preferable that the elastic member serving as the hermetic packing has a U-shaped cross section and a hollow portion is formed at the center. Thereby, even if the upper surface 21a of the foundation 21 pressed by the tip portion 15s of the elastic member 15 is greatly shaken by an earthquake, for example, the elastic member 15 is easily deformed in accordance with the shake. Thereby, even if an earthquake occurs, the elastic member 15 becomes more difficult to be damaged, and the airtightness under the floor can be more stably maintained. Moreover, since the airtight holding member 1 provided with the elastic member 15 has a strong force for pressing the elastic member 15, higher airtightness can be ensured.

  In addition, the shape of the elastic member 15 in the airtight holding member 1 of the present invention is not limited to a U-shaped cross section obtained by folding a flat elastic sheet into two as in the present embodiment. For example, the elastic member may be a member that extends in a planar shape without being bent from the attachment portion to the second plate portion 12 toward the distal end portion 15s. In addition, as long as the airtightness can be sufficiently maintained, the portion of the elastic member that is pressed against the upper surface 21a of the foundation 21 may not be planar.

  The width and height of the elastic member 15 are not particularly limited as long as the airtightness between the second plate portion 12 and the upper surface 21a of the foundation 21 against which the elastic member 15 is pressed can be maintained. The width of the elastic member 15 can be 3 to 40 mm, for example. The height of the elastic member 15 can be 3-30 mm, for example. The width of the elastic member 15 means the width when the elastic member 15 is viewed from the front along the vertical direction of the first plate portion 11 in the attached state. The height of the elastic member 15 means the distance between the position where the elastic member 15 on the lower surface 12b of the second plate portion 12 is fixed and the tip portion 15s of the elastic member 15 in the attached state.

As a material for forming the elastic member 15, any material can be used as long as it is elastic enough to maintain airtightness when pressed against the upper surface 21a of the base 21, and the material for forming the first plate portion 11 and the second plate portion 12 can be used. More flexible resins are preferred. Specifically, the material forming the elastic member 15 is preferably a soft polyvinyl chloride resin or a thermoplastic elastomer (such as an olefin-based thermoplastic elastomer, a styrene-based thermoplastic elastomer, or a polyester-based thermoplastic elastomer).
As a material for forming the elastic member 15, one kind may be used alone, or two or more kinds may be used in combination.

  In addition to the above-described materials, the first plate portion 11, the second plate portion 12, and the elastic member 15 are further mixed with an ant preventive agent in addition to the above-described materials in order to prevent the ants, for example, termites, from entering the base 23. It is preferable. Examples of the anti-anticide include neonicotinoids such as imidacloprid and non-ester pyrethroids such as silafluophene.

  The manufacturing method of the airtight holding member of the present embodiment is not particularly limited, and examples thereof include a method of integrally forming the substrate 10 and the elastic member 15 by two-color extrusion molding or the like. Note that the substrate 10 and the elastic member 15 respectively molded by extrusion molding or the like may be bonded with an adhesive or the like, or connected by fitting to form an airtight holding member.

(Airtight maintenance method)
Hereinafter, an airtight holding method using the airtight holding member 1 of the present embodiment will be described. In the airtight holding method of the present invention, for example, a base 23 is provided on a base 21 of a building such as a detached house via a vibration control device 22, and a gap is generated between the base 21 and the base 23. It is preferably used when maintaining airtightness. The vibration damping device 22 is not particularly limited, and the present invention can be applied to the airtight maintenance under the floor where the known vibration damping device 22 is provided without any particular limitation.

  In the present embodiment, as shown in FIG. 2, a base 23 is provided on a foundation 21 via a vibration damping device 22 as a structure of the building. For example, a base 21 is provided so as to surround a certain area such as a rectangle in a plan view (an area where a house or the like is built), and a plurality of bases 21 are arranged on the base 21 at intervals along the length direction. A base 23 is provided via the vibration control device 22 so as to surround the region in the same manner as the base 21.

  In the present embodiment, the airtight holding member 1 of the present invention is fixed to the outer surface 24a of the load bearing surface material 24 provided in contact with the base outer surface 23a. Further, a draining member 25 and a siding member 26 are further provided outside the load bearing surface member 24. The draining member 25 is made of a metal plate or the like formed such that the lower portion projects outward, and prevents rainwater and the like from entering the inside of the foundation 21 of the building. The siding member 26 is a decorative outer wall of a building, and covers the outside of the building with a mounting bracket 26a.

  In the airtight holding method of the present embodiment, the above-described airtight holding member 1 of the present invention is prepared, and the first plate portion 11 is pressed and fixed to the outer surface 24a of the load bearing face 24. At this time, it is preferable to fix the load bearing face material bottom surface 24b so that a part of the upper surface 12a of the second plate portion 12 is in contact with it. The airtight holding member 1 may be fixed by, for example, adhesively fixing the first plate portion 11 and the outer surface 24a of the load bearing surface material 24 with a double-sided tape. As a result, in the airtight holding member 1, the first plate portion 11 is in close contact with the outer surface 24a of the load bearing face material 24, and the second plate portion 12 is in close contact with the load bearing face material bottom surface 24b. It is fixed to 24 with no gap.

  As the double-sided tape for fixing the first plate portion 11 and the outer surface 24a of the load bearing surface material 24, any tape can be used as long as the first plate portion 11 can be hermetically bonded and fixed to the outer surface 24a of the load bearing surface material 24. And double-sided butyl tape. The double-sided tape may be attached in advance to the airtight holding member, or may be attached to the airtight holding member in the field. Alternatively, after the double-sided tape is affixed to the outer surface 24a of the load-bearing face material 24, the airtight holding member 1 may be pressed and fixed to the portion of the double-sided tape.

  Further, by fixing the airtight holding member 1 to the load bearing surface 24, the tip portion 15s of the elastic member 15 attached to the lower surface 12b of the second plate portion 12 is brought into close contact with the upper surface 21a of the foundation 21 by elastic force. Thereby, the clearance between the foundation 21 and the base 23 caused by the installation of the vibration damping device 22 is reliably closed by the elastic member 15, and the under floor in which the base 23 is provided on the foundation 21 via the vibration damping device 22. Airtightness can be maintained.

  In the airtight holding method of the present embodiment, the first plate portion 11 of the substrate 10 in the airtight holding member 1 is fixed to the outer surface 24a of the load bearing face 24, whereas the elastic member 15 is attached to the upper surface 21a of the foundation 21. It is only fixed and not fixed. Thus, for example, in the event of an earthquake, even if the vibration of the foundation 21 and the base 23 differs depending on the vibration control device 22, the elastic member 15 can slide on the upper surface 21 a of the foundation 21. It can suppress that airtightness falls.

  Moreover, in the airtight holding method of the present embodiment, the airtight holding member 1 is fixedly installed on the outer surface 24a of the load bearing surface 24 that is the outside of the building, and therefore, such an airtight holding member is installed inside the base 23. In comparison, it is not necessary to consider the inner foundation structure and the large pull inside the base 23, and it can be easily installed along the outside of the base 23.

  Further, in the airtight holding method according to the present embodiment, the base plate 23 is formed by using a material mixed with an antifungal agent as the first plate portion 11, the second plate portion 12, and the elastic member 15 constituting the airtight holding member 1. It is possible to surely prevent the entry of ants that are harmful to the building such as termites inside.

  In the present invention, the first plate portion 11 of the substrate 10 is airtightly fixed to the outer surface 24a of the load bearing surface material 24 as long as the first plate portion 11 can be airtightly fixed to the outer surface 24a of the load bearing surface material 24. The method using a double-sided tape is not limited, and for example, a method using a sealing material may be used. Further, the first plate portion 11 may be fixed to the outer surface 24 a of the load bearing surface member 24 with a nail, a tucker or the like without using a double-sided tape. In this case, airtightness is ensured by fixing the first plate portion 11 to the outer surface 24a of the load bearing member 24 through an airtight packing formed of ethylene-propylene-diene rubber (EPDM), soft polyurethane, or the like. be able to.

FIG. 3 is a cross-sectional view showing a state where the airtight holding member shown in FIG. 1 is attached to the base outer surface of the building base.
In the airtight holding method according to another embodiment of the present invention, the airtight holding member 1 of the present invention described above is directly fixed to the foundation outer surface of the building.
In the embodiment shown in FIG. 3, the first plate portion 11 constituting the substrate 10 of the hermetic holding member 1 is fixed to the base outer surface 23 a of the base 23. A part of the upper surface 12a of the second plate portion 12 is in contact with the base bottom surface 23b. In such a structure, even if it is a case where a load bearing surface material is not provided in a building, the airtight holding member 1 of this invention can be installed easily.

Thereby, the clearance between the foundation 21 and the base 23 caused by the installation of the vibration damping device 22 is reliably closed by the elastic member 15, and the under floor in which the base 23 is provided on the foundation 21 via the vibration damping device 22. Airtightness can be maintained.
In addition, for example, in the event of an earthquake, even if the vibration of the foundation 21 and the base 23 differs depending on the vibration control device 22, the elastic member 15 can slide on the upper surface 21 a of the foundation 21. It can suppress that property falls.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Airtight holding member 10 ... Board | substrate 11 ... 1st board part 12 ... 2nd board part 15 ... Elastic member 21 ... Base 22 ... Damping device 23 ... Base 23a ... Base outer surface 24 ... Load bearing surface material

Claims (5)

An airtight holding member for maintaining airtightness under the floor where a foundation is provided on a foundation of a building via a vibration control device,
A first plate portion fixed to an outer surface of a foundation forming the outside of the building or an outer surface of a load bearing surface formed outside the building outside the building outer surface, and the first plate portion A second plate portion that intersects and is spaced apart from the foundation,
An airtight holding member, wherein the second plate portion is formed with an elastic member extending toward the foundation, having a tip portion in contact with the foundation, and closing a gap between the foundation and the base.   2. The airtight holding member according to claim 1, wherein the second plate portion is in contact with a part of a base bottom face or a load bearing face bottom face facing the foundation.   The airtight holding member according to claim 1 or 2, wherein the elastic member is made of a material containing an anti-anticide.   The said elastic member is formed so that it may incline toward the outer side of the said building toward the front-end | tip part from the attachment part to a said 2nd board part, The Claim 1 thru | or 3 characterized by the above-mentioned. Airtight holding member. Using the airtight holding member according to any one of claims 1 to 4, an airtight holding method for maintaining airtightness under the floor where a foundation is provided on a foundation via a vibration damping device,
An airtight holding method, wherein the first plate portion is fixed to the outer surface of the base or the outer surface of the load bearing surface material.

Images