JP2020165167A - Sealing material and building member structure - Google Patents

Abstract

To provide a sealing material capable of switching a passable state or a non-passable state, and a building member structure applying the sealing material.SOLUTION: The sealing material includes: a sealable base portion 41 having a penetrated hollow section 411; and a sealable expandable material 42 provided in the hollow section 411 and expanding or contracting depending on its surrounding environment. The expandable material, which opens the hollow section 411 when contracted, makes the hollow section 411 to be passable. On the other hand, the expandable material, which closes the hollow section 411 when expanded, makes the hollow section 411 not to be impassable. The expandable material 42, which expands or contracts depending on a surrounding environment of the expandable material 42, opens the hollow section 411 when contracted, makes water to pass through the hollow section 411, whereas the expandable material 42 closes the hollow section 411 when expanded, makes to make water not to pass through the hollow section 411.SELECTED DRAWING: Figure 3

Description

The present invention relates to a sealing material and a building member structure.

Conventionally, a sealing material has been provided on a window frame of a building (for example, Patent Document 1).

JP-A-2019-14619

However, since the general sealing material including the sealing material of Patent Document 1 is made of a water-stopping material such as rubber, air cannot pass through it, and it can be used as a window for fitting. When applied, it could be difficult to ventilate.

The present invention has been made in view of the above facts, and an object of the present invention is to provide a sealing material capable of switching between passable and non-passable, and a building member structure to which the sealing material is applied.

In order to solve the above-mentioned problems and achieve the object, the sealing material according to claim 1 has a sealing base having a penetrating hollow portion and a sealing property provided in the hollow portion. The inflatable body includes the inflatable body that expands or contracts according to the surrounding environment, and the inflatable body expands by opening the hollow portion when the inflatable body is contracted so that the hollow portion can pass through the inflatable body. In some cases, closing the hollow portion makes it impossible to pass through the hollow portion.

The encapsulant according to claim 2 is the encapsulant according to claim 1, wherein the inflatable body is of the temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust around the inflatable body. It expands or contracts according to at least one.

The encapsulant according to claim 3 is the encapsulant according to claim 1 or 2, wherein the inflatable body opens the hollow portion when contracted, thereby causing water, air, sound, odor, or By allowing at least one of the light to pass through the hollow and closing the hollow when inflated, at least one of water, air, sound, odor, or light is allowed to pass through the hollow. Make it impassable.

The sealing material according to claim 4 is the sealing material according to any one of claims 1 to 3, and the expanding body contracts to open the hollow portion when it does not absorb water. This allows air to pass through the hollow portion and closes the hollow portion when it absorbs water and expands, thereby making water impenetrable through the hollow portion.

The encapsulant according to claim 5 is the encapsulant according to claim 4, wherein the expanded body contains at least a water-absorbing polymer.

The building member structure according to claim 6 is a partition portion that mutually partitions a first space and a second space related to a building, and a sealing material according to any one of claims 1 to 5. The sealing material includes the sealing material provided around the compartment, and the sealing material opens the hollow portion when the expansion body contracts, thereby opening the first space and the second space. By making it possible to pass between spaces and closing the hollow portion when the inflatable body expands, it becomes impossible to pass between the first space and the second space.

The building member structure according to claim 7 is the building member structure according to claim 6, wherein the partition portion mutually partitions an internal space and an external space of the building, or the building. At least two spaces inside the building are partitioned from each other.

According to the sealing material according to claim 1, the inflatable body can pass through the hollow portion by opening the hollow portion when contracted, and passes through the hollow portion by closing the hollow portion when expanded. By making it impossible, for example, it becomes possible to provide a sealing material that can be switched between passable and non-passable.

According to the encapsulant according to claim 2, for example, by expanding or contracting according to at least one of air temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust around the expander, for example. Since the ambient temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust can be reflected in the switching between passable and non-passable, it is possible to switch appropriately.

According to the sealing material according to claim 3, by opening the hollow portion, at least one of water, air, sound, odor, or light can pass through the hollow portion, and the hollow portion is closed. By making at least one of water, air, sound, odor, or light impassable through the hollow portion, for example, various objects can be made passable or impassable. , It is possible to improve convenience.

According to the sealing material according to claim 4, when water is not absorbed, it contracts to open the hollow portion so that air can pass through the hollow portion and absorbs water and expands. By closing the hollow portion, it is possible to provide a sealing material having, for example, breathability and water stopping property by making water impervious to the hollow portion.

According to the sealing material according to claim 5, since the expanding body contains at least a water-absorbing polymer, for example, water absorption and drainage can be repeated, so that the performance of the sealing material is maintained for a relatively long period of time. It becomes possible.

According to the building member structure according to claim 6, the sealing material opens a hollow portion when the inflatable body contracts, so that the inflatable body can pass between the first space and the second space, and the inflatable body expands. In this case, by closing the hollow portion, it is possible to switch between passable and non-passable between the first space and the second space by making it impossible to pass between the first space and the second space. It is possible to provide a simple building member structure.

According to the building member structure according to the seventh aspect, the partition portion mutually partitions the internal space and the external space of the building, or at least two spaces inside the building are mutually partitioned. By doing so, it is possible to switch between passable and non-passable, for example, between the space inside and outside the building, or between at least two spaces inside the building.

It is sectional drawing of the window structure which concerns on this embodiment. It is a perspective view of a water blocking material. It is sectional drawing of a part of the water blocking material in a state where the expandable material is not expanded. It is sectional drawing of a part of the water blocking material in a state where the expandable material is expanded. It is sectional drawing of the window structure for demonstrating the case where it is sunny. It is sectional drawing of the window structure for demonstrating the case where it begins to rain.

Hereinafter, embodiments of the sealing material and building member structure according to the present invention will be described in detail with reference to the accompanying drawings. First, the basic concept of the embodiment of [I] will be described, then the specific contents of the embodiment of [II] will be described, and finally, a modification of the embodiment of [III] will be described. However, the present invention is not limited to the embodiments.

[I] Basic concept of the embodiment First, the basic concept of the embodiment will be described. Embodiments generally relate to encapsulants and building member structures.

Here, the "sealing material" is a material that can be switched between passable and non-passable, and includes, for example, a base and an inflatable body, and is an arbitrary object (for example, a building member structure). , Or any thing other than the building member structure), etc. are included in the concept. Further, the passing object that can be passed or cannot be passed by using the sealing material is arbitrary, but for example, water, air, sound, odor, light, or the like may be passed.

The "base portion" is a portion that becomes the main body of the encapsulant, and specifically, has a sealing property having a hollow portion that penetrates. For example, other than the hollow portion, each of the above-mentioned passage targets One or more of them cannot pass through. The "hollow portion" is a space penetrating the base portion, for example, a space having a gentle wall surface structure (for example, a structure corresponding to a gyroid structure), and only one is provided. It is a concept that includes things, or things that are provided in multiples. Then, for example, one or more of the above-mentioned passage targets can or cannot pass through the hollow portion at the base, but cannot pass through other than the hollow portion at the base.

The "expandable body" is a sealing material provided in the hollow portion, and expands or contracts according to the surrounding environment. Specifically, by opening the hollow portion when contracted, the hollow portion is opened. By making the hollow portion passable and closing the hollow portion when it expands, the hollow portion cannot pass through. The "sealing property" means, for example, having a function of making it impossible to pass, and as an example, a concept including a function of making one or more of the above-mentioned passing objects impassable. Is.

Further, the "expansion body" is a concept including, for example, a body that expands or contracts according to at least one of the temperature, humidity, solar radiation, ultraviolet rays, water, wind, and dust around the expansion body. Also, by opening the hollow when contracted, at least one of water, air, sound, odor, or light can pass through the hollow, and by closing the hollow when expanded. , Water, air, sound, odor, or light that makes at least one of them impassable through the hollow portion, and the like.

Further, the "expansion body" means, for example, that air can pass through the hollow portion by contracting to open the hollow portion when it does not absorb water, and the hollow portion when it absorbs water and expands. It is a concept that includes a part that makes water impassable through the hollow part by closing the part.

Any one can be used as this "expansion body", but for example, one that expands or contracts by its own action, or an action from another person (for example, an action of moving air in and out) Those that expand or contract can be used, for example, a water-absorbing polymer can be used, or an elastic one such as a balloon or a rubber tube can be used, or the air inside is warmed. It is also possible to use any material that expands accordingly.

The "building member structure" is a structure to which a sealing material is applied, specifically, a structure applied to a building, for example, a partition portion and a structure including a sealing material, for example. Is a concept including a window structure, an outer wall structure, a curtain wall structure, a partition wall material, and the like.

The "partition" is a space that mutually partitions the first space and the second space related to the building. For example, the space inside the building and the space outside the building are mutually partitioned, or the building. It is a concept including those that mutually partition at least two spaces inside the building.

Then, the "sealing material" in the building member structure is provided around the compartment, for example, and opens the hollow portion when the inflatable body contracts to move between the first space and the second space. By making it passable and closing the hollow portion when the inflatable body expands, it becomes impossible to pass between the first space and the second space.

Then, in the embodiment shown below, the case where the "sealing material" is a water-stopping material having breathability and water-stopping property and the water-stopping material is applied to a window structure that cannot be opened and closed is exemplified. I will explain. The "breathability" is a performance that allows gas to pass through, and is a concept that includes, for example, a performance that allows air to pass through. "Water-stopping" is at least a liquid-impermeable performance, and is a concept including, for example, a water-impermeable performance.

[II] Specific contents of the embodiment Next, the specific contents of the embodiment will be described.

(Constitution)
First, the configuration of the window structure according to the present embodiment will be described. FIG. 1 is a cross-sectional view of a window structure according to the present embodiment.

In the following description, the XYZ directions shown in FIG. 1 are orthogonal to each other, specifically, the X direction is the vertical direction, and the X and Y directions are orthogonal to the vertical direction. For example, the + Z direction is referred to as the upper side and the −Z direction is referred to as the lower side (the same applies to other figures).

(Structure-window structure)
The window structure 100 is a building member structure, which is a window structure that cannot be opened and closed and is fixed at a predetermined position in the building. As shown in FIG. 1, it divides an indoor space and an outdoor space. It includes, for example, a window glass 1, a lower window frame portion 2, an upper window frame portion 3, and a water blocking material 4. Here, one of the indoor space and the outdoor space corresponds to the "first space", and the other space corresponds to the "second space".

(Structure-Window structure-Window glass)
The window glass 1 is a partition portion, which is a partitioning means for partitioning the indoor and outdoor areas. The specific type and configuration of the window glass 1 is arbitrary, but for example, it is formed of transparent glass, is rectangular, and corresponds to an end portion (that is, a peripheral edge). Part) is supported by each window frame. In FIG. 1, the lower end portion (−Z direction) of the window glass 1 is supported by the lower window frame portion 2, and the upper end portion (+ Z direction) of the window glass 1 is supported by the upper window frame portion 3. Although the state shown in the figure is shown, it is assumed that both end portions of the window glass are also supported by both side window frame portions (not shown) having the same configuration as each of these window frame portions.

(Structure-Window structure-Lower window frame)
The lower window frame portion 2 is a frame member provided on the lower side (−Z direction) of the window glass 1. The specific type and configuration of the lower window frame portion 2 are arbitrary, but for example, the lower window frame portion 2 is provided with the lower accommodating portion 21, has a U-shaped cross section, and is at least watertight. It is made of any material having.

(Structure-Window structure-Lower window frame-Lower housing)
The lower accommodating portion 21 is a recess for accommodating the lower end portion (−Z direction) of the window glass 1 and the water blocking material 4, and the lower end portion (−Z direction) of the window glass 1 is the lower window frame portion 2. It is a portion to be accommodated away from the inner surface (the surface on the lower accommodating portion 21 side) of the above, and is a portion to which the lower space 22 is provided. The lower space 22 is, for example, a space provided on the outer peripheral side of the window glass 1 between the lower end portion (−Z direction) of the window glass 1 and the water blocking material 4 and the lower window frame portion 2.

(Structure-Window structure-Upper window frame)
The upper window frame portion 3 is a frame member provided on the upper side (+ Z direction) of the window glass 1. The specific type and configuration of the upper window frame portion 3 is arbitrary, but is the same as that of the lower window frame portion 2, for example, the upper window frame portion 31 is provided, and the cross-sectional view is U-shaped. It is made of any material that has at least water stopping property.

(Structure-Window structure-Upper window frame-Upper accommodating part)
The upper accommodating portion 31 is a recess for accommodating the upper end portion (+ Z direction) of the window glass 1 and the water blocking material 4, and the upper end portion (+ Z direction) of the window glass 1 is the inner surface (upper side) of the upper window frame portion 3. It is a portion that is accommodated away from the surface on the accommodating portion 31 side), and is a portion where the upper space 32 is provided. The upper space 32 is, for example, a space provided on the outer peripheral side of the window glass 1 between the upper end portion (+ Z direction) of the window glass 1 and the water blocking material 4 and the upper window frame portion 3.

(Structure-Window structure-Water blocking material)
FIG. 2 is a perspective view of the water blocking material, FIG. 3 is a cross-sectional view of a part of the water blocking material in a state where the expandable material is not expanded, and FIG. 4 is a state in which the expandable material is expanded. It is a cross-sectional view of a part of the water blocking material of. Note that FIG. 3 is a cross-sectional view taken along the line AA of FIG. Further, the hollow portion 411 of FIGS. 2 to 4 is actually provided along all directions, and the internal structure is arbitrary, but here, for convenience of explanation, the hollow portion 411 is provided in the vertical direction (Z). The case where it penetrates in the axial direction) is illustrated.

The water blocking material 4 in FIG. 1 is a sealing material that allows ventilation and stops water between the indoor and outdoor areas. The water blocking material 4 is provided in each window frame portion of the window structure 100, but since the configurations of the water blocking material 4 provided in each window frame portion are the same as each other, the lower window frame portion 2 is provided. The water blocking material 4 provided will be described as a representative. The specific type and configuration of the water blocking material 4 is arbitrary, but for example, it is provided inside the lower accommodating portion 21 of the lower window frame portion 2, and is provided on both sides of the window glass 1. In addition, it is provided between the indoor side surface (+ X direction) or the outdoor side surface (−X direction) of the lower window frame portion 2 and the window glass 1. The water blocking material 4 includes, for example, the base 41 of FIGS. 2 and 3, and the expandable material 42 of FIG.

(Structure-Window structure-Water blocking material-Base)
As described above, the base portion 41 is a portion that becomes the main body of the water blocking material 4. The specific type and configuration of the base 41 are arbitrary, but for example, it is a water-stopping material having a plurality of hollow portions 411 penetrating, and is formed by using, for example, a resin material. ..

(Structure-Window structure-Water blocking material-Base-Hollow part)
The hollow portion 411 is a space penetrating the base portion 41, for example, a space penetrating along the vertical direction (Z-axis direction).

(Structure-Window structure-Water blocking material-Expandable material)
The expandable material 42 of FIG. 3 is an inflatable body and is a water-stopping material provided inside the hollow portion 411. The specific type and composition of the expandable material 42 are arbitrary, but for example, when water is not absorbed, the expandable material 42 contracts to open the hollow portion 411 so that air can pass through the hollow portion 411 and also absorbs water. By closing the hollow portion 411 when it expands, water cannot pass through the hollow portion 411. Further, for example, the expandable material 42 has a size smaller than that of the hollow portion 411 when contracted, as shown in FIG. 3, and when expanded, as shown in FIG. It has a volume increase rate or an expansion rate that closes the hollow portion 411.

As described above, when the expandable material 42 is not expanded, the diameter is smaller than that of the hollow portion 411, so that the occlutable space 412 of FIG. 3 is formed. The closeable space 412 is, for example, a space formed between the inflatable material 42 when it is not inflated and the inner wall of the base 41.

Further, for example, when the expandable material 42 is not expanded, it is assumed that the hollow portion 411 itself has an actually complicated and complicated shape, and the hollow portion 411 uses the shape. A method of hooking and fixing inside the hollow portion 411, or a method of hooking and fixing a large number of resin fibers from the inner wall of the hollow portion 411 to the resin fibers, or a method of fixing by adhesion using an adhesive. Etc.), which is fixed at a predetermined position inside the hollow portion 411, and is formed of a water-absorbing polymer.

(Ventilation and water stoppage)
Next, ventilation and water stoppage in the window structure 100 configured in this way will be described. Here, the case where the outdoor weather of FIG. 1 is sunny and the case where it starts to rain will be described as an example.

(Ventilation and water stoppage-when sunny)
FIG. 5 is a cross-sectional view of a window structure for explaining a sunny case. When the weather is fine, water (for example, rainwater) is not supplied to the expandable material 42. Therefore, as shown in FIG. 3, the expandable material 42 does not absorb water and does not expand, and the space 412 can be closed. Is formed. Therefore, the water blocking material 4 can be ventilated through the closed space 412 of the hollow portion 411.

Therefore, for example, in the lower part (−Z direction) of the window structure 100 of FIG. 5, the blockable space 412 of FIG. 3 of the water blocking material 4 on the outdoor side (−X direction), the lower space 22 of FIG. 5, and the chamber. The indoor and outdoor areas can be ventilated through the closed space 412 of FIG. 3 via the water blocking material 4 on the inside (+ X direction). Further, also in the upper part (+ Z direction) of the window structure 100 of FIG. 5, the indoor and outdoor areas can be ventilated in the same manner. Then, for example, as shown by the arrow in FIG. 5, it is possible to allow air to pass through the air. The arrow shown in FIG. 5 here is an example, and it is possible to allow air to pass in a direction different from these (the same applies to FIG. 6).

(Ventilation and water stoppage-when it starts to rain)
FIG. 6 is a cross-sectional view of a window structure for explaining a case where it starts to rain. When it starts to rain, when it rains on the water blocking material 4 on the outdoor side (-X direction) of the lower part (-Z direction) of the window structure 100, the rainwater is hollow from the upper side (+ Z direction) of FIG. Since it enters the inside of the portion 411 and is supplied to the expandable material 42, as shown in FIG. 4, the expandable material 42 absorbs water and expands to block the occlutable space 412 of FIG. Become. Therefore, the water blocking material 4 stops water because the blockable space 412 of the hollow portion 411 is blocked.

Therefore, for example, in the lower portion (−Z direction) of the window structure 100 of FIG. 6, the hollow portion 411 of FIG. 4 of the water blocking material 4 on the outdoor side (−X direction) of the lower portion (−Z direction) of the window structure 100 Since it is blocked by the expandable material 42, water is stopped between the indoor and outdoor areas. In this case, although air cannot be ventilated at the lower part (−Z direction) of the window structure 100, if rainwater is not supplied to the water blocking material 4 at the upper part (+ Z direction) of the window structure 100, the window. On the upper side (+ Z direction) of the structure 100, for example, as shown by the arrow in FIG. 6, air can be passed through to enable ventilation.

Then, after that, as the rain stops and the expandable material 42 of FIG. 4 gradually dries and the amount of water absorption decreases, the expandable material 42 contracts, and the occluded space 412 shown in FIG. 3 It is formed again, and ventilation is possible again on the lower side (-Z direction) of the window structure 100.

(Effect of this embodiment)
According to the present embodiment, the expandable material 42 opens the hollow portion 411 when it contracts to allow the hollow portion 411 to pass through, and closes the hollow portion 411 when it expands to open the hollow portion 411. By making it impassable, for example, it is possible to provide a water blocking material 4 that can be switched between passable and non-passable.

Further, by expanding or contracting according to the water around the expandable material 42, for example, the surrounding water can be reflected in the switching between passable and non-passable, so that it is possible to switch appropriately. Become.

Further, by opening the hollow portion 411, at least air can pass through the hollow portion 411, and by closing the hollow portion 411, at least water and air cannot pass through the hollow portion 411. For example, it is possible to make various objects passable or impossible, so that convenience can be improved.

Further, by contracting to open the hollow portion 411 when water is not absorbed, air can pass through the hollow portion 411, and when water is absorbed and expanded, the hollow portion 411 is closed. By making water impervious to the hollow portion 411, it is possible to provide, for example, a water blocking material 4 having breathability and water stopping property.

Further, since the expandable material 42 is a water-absorbing polymer, for example, water absorption and drainage can be repeated, so that the performance of the water-stopping material 4 can be maintained for a relatively long period of time.

The water blocking material 4 opens the hollow portion 411 when the expandable material 42 contracts so that it can pass between the outdoor space and the indoor space, and the hollow portion when the expandable material 42 expands. By closing 411, it is possible to switch between passable or impassable between the outdoor space and the indoor space, for example, by making it impassable between the outdoor space and the indoor space. It is possible to provide a window structure 100.

Further, since the window glass 1 mutually partitions the space inside the building and the space outside the building, for example, it is possible or impossible to pass between the space inside the building and the space outside the building. It becomes possible to switch.

[III] Modifications to Embodiments Although the embodiments according to the present invention have been described above, the specific configurations and means of the present invention are within the scope of the technical idea of each invention described in the claims. Can be arbitrarily modified and improved. Hereinafter, such a modification will be described.

(About the problem to be solved and the effect of the invention)
First, the problem to be solved by the invention and the effect of the invention are not limited to the above-mentioned contents, and may differ depending on the implementation environment and the details of the configuration of the invention, and only a part of the above-mentioned problems. May be resolved or only some of the above effects may be achieved.

(About shape, numerical value, structure, time series)
With respect to the components illustrated in the embodiments and drawings, the shapes, numerical values, or the interrelationships of the structures or time series of the plurality of components shall be arbitrarily modified and improved within the scope of the technical idea of the present invention. Can be done.

(About expandable materials)
Moreover, although the case where the water-absorbing polymer is used as the expandable material 42 of FIG. 3 of the above embodiment has been illustrated and described, the present invention is not limited to this. For example, any material that expands or contracts by its own action according to the amount of at least one of temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust may be used as the expandable material 42. Alternatively, instead of the expandable material 42, a rubber tube capable of allowing air to flow in and out may be used. In this case, for the sensor that detects the amount of at least one of the outdoor or indoor temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust around the window structure 100, and the rubber tube described above. A device for taking in and out air is provided, and the device injects air into the rubber tube to inflate the rubber tube or removes air from the rubber tube according to the detection value of the sensor described above. The rubber tube may be shrunk. Further, as the base 41 and the expandable material 42 of FIG. 3 of the above embodiment, those capable of making at least one of water, air, sound, odor, or light impassable may be used. .. And when configured in this way, at least one of water, air, sound, smell, or light, depending on at least one of temperature, humidity, solar radiation, ultraviolet light, water, wind, or dust. , It is possible to make it passable or make it impassable.

(About coloring)
Further, the base 41 of FIG. 3 of the above embodiment may be transparently configured, and the expandable material 42 may be colored in any color (for example, red, blue, green, etc.). With such a configuration, it is possible to improve the design of the window structure 100.

(Additional note)
The sealing material of Appendix 1 is a sealing base having a penetrating hollow portion and a sealing expanding body provided in the hollow portion, and the expansion expands or contracts according to the surrounding environment. With a body, the inflatable body can pass through the hollow portion by opening the hollow portion when contracted, and cannot pass through the hollow portion by closing the hollow portion when expanded. To.

The encapsulant of Appendix 2 is the encapsulant according to Annex 1, wherein the inflator is at least one of the air temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust around the inflator. It expands or contracts accordingly.

The encapsulant of Appendix 3 is the encapsulant according to Appendix 1 or 2, wherein the inflatable body opens the hollow portion when contracted, so that the encapsulant is of water, air, sound, odor, or light. By allowing at least one pass through the hollow and closing the hollow when inflated, at least one of water, air, sound, odor, or light can pass through the hollow. Make it impossible.

The encapsulant of Appendix 4 is the encapsulant according to any one of Appendix 1 to 3, wherein the expanded body contracts when it does not absorb water to open the hollow portion, thereby causing air. Is made passable through the hollow portion, and when the water is absorbed and expanded, the hollow portion is closed, so that water cannot pass through the hollow portion.

The encapsulant of Appendix 5 is the encapsulant according to Appendix 4, wherein the expanded body contains at least a water-absorbing polymer.

The building member structure of Appendix 6 is a partition portion that mutually partitions a first space and a second space related to a building, and the sealing material according to any one of claims 1 to 5, wherein the section The sealing material includes the sealing material provided around the portion, and the sealing material is between the first space and the second space by opening the hollow portion when the inflatable body contracts. By closing the hollow portion when the inflatable body expands, it becomes impossible to pass between the first space and the second space.

The building member structure of Appendix 7 is the building member structure described in Appendix 6, wherein the partition portion mutually partitions the internal space and the external space of the building, or at least the inside of the building. It divides two spaces from each other.

(Effect of appendix)
According to the sealing material described in Appendix 1, the inflatable body can pass through the hollow portion by opening the hollow portion when contracted, and does not pass through the hollow portion by closing the hollow portion when expanded. By making it possible, for example, it becomes possible to provide a sealing material that can be switched between passable and non-passable.

According to the encapsulant according to Appendix 2, for example, by expanding or contracting according to at least one of air temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust around the inflator, for example, passing through. Since the ambient temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust can be reflected in the switching between possible and non-passable, it is possible to switch appropriately.

According to the encapsulant according to Appendix 3, opening the hollow allows at least one of water, air, sound, odor, or light to pass through the hollow and closes the hollow. By making at least one of water, air, sound, odor, or light impassable through the hollow portion, for example, various objects can be made passable or impassable. It is possible to improve convenience.

According to the sealing material described in Appendix 4, when water is not absorbed, it shrinks to open the hollow portion so that air can pass through the hollow portion, and when water is absorbed and expanded. By closing the hollow portion, it is possible to provide a sealing material having, for example, breathability and water stopping property by making water impervious to the hollow portion.

According to the encapsulant according to Appendix 5, by containing at least a water-absorbing polymer, for example, water absorption and drainage can be repeated, so that the performance of the encapsulant can be maintained for a relatively long period of time. Is possible.

According to the building member structure described in Appendix 6, the encapsulant allows the inflator to pass between the first space and the second space by opening the hollow portion when the inflator contracts, and the inflator expands. In some cases, by closing the hollow portion, it is possible to switch between passable and non-passable between the first space and the second space by making it impossible to pass between the first space and the second space. It becomes possible to provide a building member structure.

According to the building member structure described in Appendix 7, the compartments partition the space inside and outside the building, or at least two spaces inside the building. By being a thing, it is possible to switch between passable and non-passable, for example, between the space inside and outside the building, or between at least two spaces inside the building.

1 Window glass 2 Lower window frame 3 Upper window frame 4 Water blocking material 21 Lower accommodating part 22 Lower space 31 Upper accommodating 32 Upper space 41 Base 42 Expandable material 100 Window structure 411 Hollow part 412 Closeable space

Claims (7)

With a sealing base with a hollow portion that penetrates,
A sealing expander provided in the hollow portion, which includes the expander that expands or contracts according to the surrounding environment.
The inflatable body makes the hollow portion passable by opening the hollow portion when contracted, and makes the hollow portion impassable by closing the hollow portion when inflated.
Encapsulant. The expander expands or contracts in response to at least one of air temperature, humidity, solar radiation, ultraviolet rays, water, wind, or dust around the expander.
The encapsulant according to claim 1. The inflatable body opens the hollow portion when contracted to allow at least one of water, air, sound, odor, or light to pass through the hollow portion, and when expanded, the hollow portion. By closing the portion, at least one of water, air, sound, odor, or light is impervious to the hollow portion.
The encapsulant according to claim 1 or 2. The inflatable body contracts when it does not absorb water and opens the hollow portion to allow air to pass through the hollow portion, and closes the hollow portion when it absorbs water and expands. This makes it impossible for water to pass through the hollow portion.
The encapsulant according to any one of claims 1 to 3. The expanded body contains at least a water-absorbing polymer.
The encapsulant according to claim 4. A section that mutually separates the first space and the second space related to the building,
The sealing material according to any one of claims 1 to 5, wherein the sealing material provided around the compartment is provided.
The encapsulant makes it possible to pass between the first space and the second space by opening the hollow portion when the inflatable body contracts, and when the inflatable body expands, the hollow portion is opened. By closing, it becomes impossible to pass between the first space and the second space.
Building member structure. The partition portion is for partitioning the internal space and the external space of the building with each other, or for partitioning at least two spaces inside the building with each other.
The building member structure according to claim 6.

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