JP6691736B2 - Airtight structure and construction method of bathroom unit - Google Patents

Description

  The present invention relates to an airtight structure for closing a space between a bathroom unit provided in an installation space of a building or the like and an inner surface of the installation space surrounding the bathroom unit, a bathroom unit provided with this airtight structure, and a method of constructing a bathroom unit. Regarding

  Conventionally, an airtight structure for closing a space between the bathroom unit and the inner surface of the installation space has been proposed (for example, refer to Patent Document 1). The airtight structure described in Patent Document 1 is configured by attaching a blocking film across the base of the building and the waterproof pan of the bathroom unit. One end of this blocking film is previously fixed to the base of the building by a holding plate and a screw, and after the waterproof pan is installed, the other end is fixed by a screw to the inner surface of the vertical part standing on the outer peripheral part of the waterproof pan. It

Japanese Patent No. 3091709

  However, in the conventional airtight structure as described in Patent Document 1, one end side of the barrier film is fixed to the base of the building before installation of the waterproof pan, and the other end side of the barrier film is installed after installation of the waterproof pan. Since it is fixed to the vertical part, the construction procedure is restricted, so it has been difficult to sufficiently improve the construction efficiency. Further, in the conventional airtight structure, since the blocking film is fixed by screws, a gap may be formed between the blocking film and the base or the vertical portion, and the airtightness may not be sufficiently enhanced.

  An object of the present invention is to provide an airtight structure, a bathroom unit, and a method of constructing a bathroom unit, which can improve the construction efficiency by good construction properties and can enhance the airtightness.

The airtight structure of the present invention is an airtight structure in which a gap between an inner surface of an installation space surrounded by a plurality of walls, a ceiling and a floor in a building and an outer surface of a bathroom unit installed in the installation space is closed by an airtight member. The bathroom unit forms a bathroom space surrounded by a bathtub, a wash floor, a wall panel, a ceiling panel and a bathtub apron, and the airtight member has an elastic base material and a surface on one side of the base material. is configured to include a surface material having provided with airtightness, and the airtight member, said surface skin material with folded into two so as to face the outside in a state in which the skin material facing downward, the skin When the material is pressed into the gap so as to face the floor of the installation space, the base material is pressed to generate a repulsive force, and the repulsive force causes the skin material to move to the inner surface of the installation space and the bathroom unit. Out of Characterized in that it is close to and.

  According to the present invention as described above, the airtight member is configured to have a base material having elasticity and a skin material having airtightness, and the airtight member is provided in a gap between the outer surface of the installation member and the inner surface of the installation space. The gap can be closed by bringing the skin material into close contact with the inner surface of the installation space and the outer surface of the installation member by the repulsive force of the press-fitted and pressed base material. According to such an airtight structure, after installing the installation member in the installation space, the airtight member may be press-fitted into a gap between the outer surface of the installation member and the inner surface of the installation space, or the outer surface of the installation member and the installation space The airtight member may be attached to one of the inner surfaces and the airtight member may be sandwiched between the inner surface and the other surface, without any restriction on the construction procedure.

  Further, since the airtight member is held in the gap between the outer surface of the installation member and the inner surface of the installation space by the repulsive force of the pressed base material, fixing work such as screwing can be unnecessary, and the construction labor can be reduced. You can Therefore, the workability can be improved because the work procedure is not restricted and the work can be reduced. Further, the repulsive force of the pressed base material brings the skin material into close contact with the inner surface of the installation space and the outer surface of the installation member, thereby preventing a gap from being formed between these surfaces and the skin material. It is possible to improve airtightness.

  According to such a configuration, by bending the airtight member provided with the skin material on one surface of the base material, the gap between the outer surface of the installation member and the inner surface of the installation space with the skin material facing to both sides thereof. Can be press-fitted in and the skin material can be brought into close contact with each of these surfaces. That is, when the elastic base material is bent, its restoring force acts in the direction of expanding the airtight member, and therefore, in addition to the repulsive force due to the compression of the base material, the restoring force against bending also causes a close force. Can be increased. Therefore, the airtight member can be manufactured easily and inexpensively as compared with the case where the skin material is provided on both surfaces of the base material. Furthermore, if the airtight member is bent and press-fitted into the gap between the outer surface of the installation member and the inner surface of the installation space, the workability of press-fitting is improved and the workability can be further improved.

  Further, in the airtight structure of the present invention, an adhesive layer is provided on at least one of the inner surface of the installation space and the airtight member, and the outer surface of the installation member and the airtight member. Is preferred.

  According to such a configuration, in addition to the holding force for holding the airtight member by the repulsive force of the base material, the airtight member can be fixed by the adhesive force of the adhesive layer, so that the position shift and the dropout of the airtight member are prevented. Thus, airtightness can be maintained. At this time, the adhesive layer is, for example, a double-sided tape, and one adhesive surface of the double-sided tape is affixed to the inner surface of the installation space or the outer surface of the installation member while leaving the release paper on the other adhesive surface. The airtight member may be press-fitted, and after the press-fitting, the other release paper may be peeled off and pulled out, and the other adhesive surface and the skin material of the airtight member may be bonded. By adopting such a procedure, the fixing strength of the airtight member can be easily increased without lowering the workability.

On the other hand, the bathroom unit construction method of the present invention comprises: an outer surface of a unit member that constitutes the bathroom unit ; and an inner surface of an installation space surrounded by a plurality of walls, a ceiling and a floor in a building in which the bathroom unit is installed. A method of constructing a bathroom unit for closing a gap with an airtight member, wherein the bathroom unit forms a bathroom space surrounded by a bathtub, a wash floor, a wall panel, a ceiling panel and a bathtub apron, which are the unit members, and member comprises a substrate having elasticity, is configured with a skin material having air-tightness is provided on one side of the surface of the substrate, wherein the airtight member had an adhesive layer and release paper both sides At least one of the outer surface of the unit member and the inner surface of the installation space is attached to at least one of the outer surface of the unit member and the inner surface of the installation space by a tape. Thereby bonding the adhesive layer of the double-sided tape, leave the release paper, said surface skin material with folded in two so as to face the outside in a state in which the skin material towards the bottom of the airtight member, the skin By pressing the airtight member into the gap between the installation space and the bathroom unit and then pulling out the release paper of the double-sided tape so that the material faces the floor of the installation space , the pressed base material The surface of the skin material is brought into close contact with the inner surface of the installation space and the outer surface of the unit member, and the airtight member is held in the gap.

  According to such a construction method of the present invention, after the bathroom unit is installed in the installation space, the airtight member is press-fitted into the gap formed between the outer surface of the unit member and the inner surface of the installation space. Therefore, it is not necessary to attach an airtight material to the inner surface of the installation space before installing the bathroom unit, and the construction procedure can be simplified. Then, by the repulsive force of the pressed base material or the airtight member, the surface of the skin material or the airtight member is brought into close contact with the inner surface of the installation space and the outer surface of the unit member, and the airtight member is held in the gap, whereby the airtightness is improved. The workability can be reduced while improving the property.

Further, the bathroom unit construction method of the present invention comprises: an outer surface of a unit member constituting the bathroom unit ; and an inner surface of an installation space surrounded by a plurality of walls, a ceiling and a floor in a building in which the bathroom unit is installed. A method of constructing a bathroom unit for closing a gap with an airtight member, wherein the bathroom unit forms a bathroom space surrounded by a bathtub, a wash floor, a wall panel, a ceiling panel and a bathtub apron, which are the unit members, and The member is configured to include a base material having elasticity and a skin material having airtightness provided on one surface of the base material, and in a state in which the skin material of the airtight member faces downward. with said surface skin material is folded in two so as to face outward, so that the skin material faces the floor of the installation space, the airtight unit with a temporary fixing tape to the outer surface of the unit member And holding the face material that constitutes the installation space from the outside toward the airtight member, sandwiching the airtight member between the inner surface of the face material and the outer surface of the unit member, and pressing. The surface of the skin material is brought into close contact with the inner surface of the installation space and the outer surface of the unit member by the repulsive force of the base material .

  According to such a construction method of the present invention, the airtight member is attached to the outer surface of the unit member in advance, the face material is built from the outside toward the airtight member, and the inner surface of the face material and the outer surface of the unit member are formed. By sandwiching the airtight member, it becomes possible to hold the airtight member at the same time as the installation of the face material even in a portion where the face material needs to be installed after the bathroom unit is installed. Therefore, since it is not necessary to press-fit the airtight member after the face material is installed, the construction procedure can be simplified and the construction labor can be reduced. The airtightness can be enhanced by bringing the surface of the skin material or the airtight member into close contact with the inner surface of the installation space and the outer surface of the unit member by the repulsive force of the pressed base material or the airtight member.

  According to the airtight structure, the bathroom unit and the method of constructing the bathroom unit of the present invention as described above, the base material of the airtight member (or the airtight member) press-fitted into the gap between the outer surface of the installation member (unit member) and the inner surface of the installation space. By the repulsive force of the member itself), the skin material (or the surface of the airtight member) can be brought into close contact with the inner surface of the installation space and the outer surface of the installation member (unit member) to close the gap, and thus the airtightness can be improved. .. Further, since it is not necessary to individually fix the outer surface of the installation member (unit member) and the inner surface of the installation space individually, the construction procedure can be simplified and the construction labor can be reduced, resulting in construction efficiency. Can be improved.

It is sectional drawing which shows the bathroom using the airtight structure which concerns on embodiment of this invention. It is a perspective view which shows the installation state of the bathroom unit in the said bathroom. It is sectional drawing which expands and shows the said airtight structure. It is a perspective view showing an airtight member in the airtight structure. It is sectional drawing which shows the construction procedure of the said airtight structure. It is sectional drawing which shows the other construction procedure of the said airtight structure . It is sectional drawing which shows the airtight structure which concerns on a reference example .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the airtight structure of the present embodiment has a gap between a bathroom unit 1 and an inner surface (an inner surface WS of an outer wall W1 and an inner wall W2 described later) of an installation space S in which the bathroom unit 1 is installed. By closing G with the airtight member 10, the flow of air through the gap G is blocked, thereby ensuring the heat insulating performance of the building.

  The building is, for example, a foundation F and a foundation slab FS, a plurality of outer walls W1 and inner walls W2 and a first floor F1 supported on the upper side of the foundation F, and a ceiling (second floor) installed above the outer wall W1 and the inner wall W2. Floor) F2. On the other hand, an underfloor space UF is formed between the foundation slab FS and the first-floor floor F1, and this underfloor space UF is exposed to the outside through a ventilation hole formed between the foundation F and the outer wall W1. Under-floor ventilation is configured to communicate with each other and to ventilate outside air into the under-floor space UF. Further, the building has a heat insulating structure in which a heat insulating material is provided inside the outer wall W1 and the first floor F1 so that heat transfer between the outside and the inside of the building is suppressed.

  The installation space S in which the bathroom unit 1 is installed is surrounded by a foundation F and a foundation slab FS, four outer walls W1 and inner walls W2, and a ceiling F2. This installation space S is communicated with the underfloor space UF, and the outside air that has flowed in from the outside through the ventilation hole enters the lower part of the installation space S through the underfloor space UF. Therefore, the airtight structure of the present embodiment ensures the heat insulation performance for the inner wall W2 and the ceiling F2 by blocking the circulation of the outside air so that the outside air that has entered the lower part of the installation space S does not rise inside the installation space S. Is what you are trying to do.

  The bathroom unit 1 is supported by the bath tub 3 and the washing floor (waterproof pan) 4 supported on the basic slab FS via the bundle 2 and the like, and a plurality of posts standing upright from the periphery of the bath 3 and the washing floor 4. A wall panel 5, a ceiling panel 6 supported by a ceiling connecting beam connecting the tops of a plurality of posts, and a bathroom doorway and windows (not shown). A bathtub apron 7 is provided at the step between the bathtub 3 and the wash floor 4, and a side edge of the bath apron 7 is supported by a side vertical member 8 extending between the bath 3 and the wash floor 4. Therefore, the bathroom unit 1 forms a bathroom space surrounded by the bathtub 3, the wash floor 4, the wall panel 5, the ceiling panel 6, and the bathtub apron 7, and the bathroom space has a predetermined airtight performance. However, air is configured to be unable to flow between the installation space S and the installation space S.

  As shown in FIG. 3, the airtight member 10 includes the inner surface WS of the face material P on the side of the installation space S that constitutes the outer wall W1 and the inner wall W2, and the outer surface of the rising piece 9 that stands up from the peripheral edge of the bathtub 3 or the washing floor 4. It is press-fitted between 9A and. Although not shown, the airtight member 10 is also press-fitted between the inner surface WS of the face member P and the outer surface 8A of the side vertical member 8 that supports the side edge of the bathtub apron 7. Therefore, the airtight member 10 has outer surfaces 8A and 9A which are continuous with the entire circumference of the bathroom lower structure (unit member) 1A including the bathtub 3, the wash floor 4, the bathtub apron 7, the side vertical members 8 and the like, and the bathroom. The gap G formed between the outer wall W1 and the inner surface WS of the face material P of the inner wall W2 which is the inner surface of the installation space S that surrounds the four circumferences of the lower structure is closed.

  As shown in FIG. 4 (A), the airtight member 10 is made of a sheet material having an entire length, is provided with a base material 11 having a predetermined thickness and having elasticity, and a surface on one side of the base material 11. And an airtight skin material 12, and the skin material 12 is configured to be bendable so as to face outward. The thickness dimension of the airtight member 10 is set according to the size of the gap G. For example, the thickness dimension of the airtight member 10 in a bent state with respect to the design value of the size of the gap G. Is set to be in the range of 1.1 times to 3.0 times. The width dimension of the airtight member 10 is set to, for example, about 300 mm.

  The base material 11 is made of, for example, a resin non-woven fabric or a porous material, but the material is not particularly limited as long as it exhibits a repulsive force when compressed. The skin material 12 is made of a resin film material, but the material is not particularly limited as long as it is airtight. The base material 11 and the skin material 12 may be separately formed and then integrated with each other by adhesion or the like, or may be formed by integral molding.

  As shown in FIG. 4 (B), the airtight member 10 is bent in two so that the skin material 12 faces outward and is press-fitted into the gap G. That is, the thickness of the airtight member 10 in the folded state is approximately twice the original size, which is 1.1 to 3.0 times larger than the size of the gap G (for example, 20 mm). It has a thickness dimension (22 mm to 60 mm). Therefore, the airtight member 10 press-fitted into the gap G is elastically deformed so that the base material 11 is pressed and the thickness is reduced, and the repulsive force of the airtight member 10 causes the inner surfaces WS of the outer wall W1 and the inner wall W2 and the bathroom lower structure (bathtub). 3 and the rising pieces 9 of the washing floor 4, and the outer surfaces 8A, 9A of the side frame 8) are pushed back.

  Thus, the airtight member 10 press-fitted into the gap G is held in the gap G by pushing back the inner surfaces WS of the outer wall W1 and the inner wall W2 and the outer surfaces 8A and 9A of the bathroom lower structure 1A by the repulsive force of the base material 11. It is supposed to be done. Further, the skin material 12 is brought into close contact with the inner surfaces WS of the outer wall W1 and the inner wall W2 and the outer surfaces 8A and 9A of the bathroom lower structure 1A by the repulsive force of the base material 11. Therefore, the skin material 12 is continuously provided over the inner surface WS of the outer wall W1 or the inner wall W2 and the outer surfaces 8A, 9A of the bathroom lower structure 1A, which are in close contact with each other, whereby air cannot flow. The gap G is closed, and the upper part of the installation space S and the underfloor space UF are configured so as not to communicate with each other.

  Next, as a construction method of the bathroom unit 1, a mounting procedure of the airtight member 10 will be described. First, as shown in FIG. 2, the bath tub 3 and the washing floor 4 are installed on the basic slab FS in the installation space S via the bundle 2 and the like, and a vertical side portion is provided between the bath 3 and the washing floor 4. The material 8 is attached and the bathroom lower structure 1A is assembled. At this time, since it is necessary to carry each component of the bathroom unit 1 into the installation space S, the inner wall W2 of the inner wall W2 that separates the bathroom and the dressing room (the inner wall W2 indicated by a chain double-dashed line in FIG. 2). ) Is not built. By thus installing the bathroom lower structure 1A inside the installation space S, a gap G is formed between the inner surface WS of the outer wall W1 or the inner wall W2 and the outer surfaces 8A, 9A of the bathroom lower structure 1A.

  After the bathroom lower structure 1A is installed, the airtight member 10 is press-fitted into the gap G as shown in FIG. 4 (B). The procedure for press-fitting the airtight member 10 is, for example, the press-fitting of the airtight member 10 from the gap G between the outer surface 9A of the rising piece 9 of the bathtub 3 and the inner surface WS of the outer wall W1 located on the far side when viewed from the entrance of the bathroom. To start. Following this, the airtight member 10 is press-fitted into the gap G between the outer wall W1 and the inner surface WS of the inner wall W2 on the left and right of the bathtub 3, and the outer surface 8A of the side vertical member 8 of the bathtub apron 7 and the outer wall W1 or the inner wall W2. After the airtight member 10 is press-fitted into the gap G with the inner surface WS, the airtight member 10 is press-fitted into the gap G between the outer surface 9A of the rising piece 9 of the wash floor 4 and the inner surface WS of the outer wall W1 or the inner wall W2.

  When the airtight member 10 is press-fitted into each gap G, as shown in FIG. 4, the airtight member 10 is folded in two so that the skin material 12 faces outward, and the skin material 12 on the bent tip side is left in the gap G. The airtight member 10 is press-fitted while sliding the outer skin material 12 along the outer surface 9A and the inner surface WS by inserting a hand or a tool between the base materials 11 on the back side and pushing it in. By the above-described press-fitting procedure, the press-fitting of the airtight member 10 into the gap G between the three outer surfaces 8A and 9A of the periphery of the bathroom lower structure 1A and the inner surfaces WS of the outer wall W1 and the inner wall W2 is completed. Since the inner wall W2 that separates the bathroom and the dressing room is not built yet, the airtight member 10 is press-fitted in the procedure described later.

  By press-fitting as described above, the repulsive force due to the elasticity of the base material 11 acts on the inner surfaces WS of the outer wall W1 and the inner wall W2 and the outer surfaces 8A and 9A of the bathroom lower structure 1A, and the friction generated due to this repulsive force. The airtight member 10 is held in the gap G by the force. As a means for increasing the holding force of the airtight member 10, as shown in FIG. 5, the airtight member 10 may be attached to the inner surface WS and the outer surfaces 8A and 9A by using the double-faced tape T. Specifically, as shown in FIG. 5 (A), one surface of the adhesive layer T1 of the double-sided tape T is bonded to the inner surfaces WS of the outer wall W1 and the inner wall W2 and the outer surfaces 8A and 9A of the bathroom lower structure 1A. Then, the other release paper T2 is left without being removed. After press-fitting the airtight member 10 while sliding the skin material 12 between the release papers T2, as shown in FIG. 5B, the release paper T2 is pulled out in order from the end to pull out the skin material of the airtight member 10. 12 and the other surface of the adhesive layer T1 of the double-sided tape T are adhered.

  Next, a procedure for press-fitting the airtight member 10 into the gap G between the inner surface WS of the inner wall W2 that separates the bathroom from the dressing room and the outer surface 9A of the rising piece 9 of the wash floor 4 will be described with reference to FIG. To do. First, before building the inner wall W2 on the dressing room side, the wall panel 5 and the ceiling panel 6 are attached in the installation space S to complete the assembly of the bathroom unit 1. Then, as shown in FIG. 6 (A), the airtight member 10 is temporarily fixed to the rising piece 9 of the wash floor 4. At this time, the airtight member 10 is adhered to the outer surface 9A with the double-sided tape T, and the airtight member 10 is held with the temporary fastening tape T3 while the airtight member 10 is rolled so that the skin material 12 faces outward. In addition, the double-sided tape T is attached to a portion of the airtight member 10 where the inner wall W2 on the undressing room side abuts.

  As described above, the inner wall W2 is built in from the dressing room side with respect to the airtight member 10 temporarily fixed to the rising piece 9 of the washing floor 4, and the airtight member 10 is sandwiched between the rising piece 9 and FIG. As shown in (B), the airtight member 10 is folded in two by being pressed by the surface material P of the inner wall W2, and the skin material 12 is externally surfaced by the repulsive force of the base material 11 of the washing floor 4. It is brought into close contact with 9A and the inner surface WS of the inner wall W2. Further, the airtight member 10 is held in the gap G by being bonded to the outer surface 9A and the inner surface WS by the double-sided tape T. In this way, between the wall panel 5 of the bathroom unit 1 that has been assembled and the inner wall W2 on the undressing room side, in a place where it is difficult to put a hand or a tool after the inner wall W2 is built and work is difficult. By temporarily fixing the airtight member 10 to the rising piece 9 of the wash floor 4 in advance, the work of press-fitting the airtight member 10 can be performed at the same time when the inner wall W2 is built.

  According to this embodiment as described above, the following effects can be obtained. That is, the airtight member 10 is configured to have a base material 11 having elasticity and a skin material 12 having airtightness. The airtight member 10 is installed on the outer surfaces 8A and 9A of the bathroom lower structure 1A and the installation space. By pressing into the gap G between the inner wall WS of the outer wall W1 and the inner wall W2 forming S, the skin material 12 is brought into close contact with the outer faces 8A, 9A and the inner face WS by the repulsive force of the pressed base material 11. Can be closed. Further, since the airtight member 10 is held in the gap G by the repulsive force of the pressed base material 11, a separate fixing work can be eliminated, and the construction labor can be reduced. Therefore, the workability can be improved because the work procedure is not restricted and the work can be reduced. Further, the skin material 12 is brought into close contact with the outer surfaces 8A, 9A and the inner surface WS by the repulsive force of the pressed base material 11, thereby preventing a gap from being formed between each of these surfaces and the skin material 12. It is possible to improve airtightness.

  Further, the airtight member 10 is formed by having the skin material 12 on one surface of the base material 11, the airtight member 10 is bent so that the skin material 12 faces outward, and the inner wall WS of the outer wall W1 or the inner wall W2 is formed. The skin material 12 can be brought into close contact with the inner surface WS and the outer surfaces 8A, 9A of the bathroom lower structure 1A by press-fitting into the gap G between the outer surfaces 8A, 9A. Therefore, as compared with the case where the skin material 12 is provided on both surfaces of the base material 11, the airtight member 10 can be manufactured easily and inexpensively. Furthermore, if the airtight member 10 is bent and press-fitted into the gap G, the workability of press-fitting is improved and the workability can be further improved.

  Further, as shown in FIG. 5, if the airtight member 10 is attached to the inner surface WS of the outer wall W1 or the inner wall W2 and the outer surfaces 8A and 9A of the bathroom lower structure 1A by using the double-sided tape T, the repulsive force of the base material 11 is increased. Since the airtight member 10 can be fixed by the adhesive force of the adhesive layer T1 in addition to the holding force for holding the airtight member 10, it is possible to prevent the airtight member 10 from being displaced or to drop and to maintain the airtightness. it can. At this time, one surface of the adhesive layer T1 is attached to the inner surface WS and the outer surfaces 8A and 9A, the airtight member 10 is press-fitted while leaving the release paper T2 on the other surface, and after the press-fitting, the release paper T2 is peeled off and pulled out. As a result, the fixing strength of the airtight member 10 can be easily increased without lowering the workability.

  The present invention is not limited to the above-described embodiment, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. For example, in the above embodiment, the airtight structure of the bathroom unit 1 installed in the installation space S is illustrated, but the airtight structure of the present invention is not limited to the bathroom unit 1, and any installation member is installed in the installation space. At this time, it suffices that the airtight member closes the gap between the outer surface of the installation member and the inner surface of the installation space, and the installation member and the installation space are not particularly limited. That is, the installation space is not limited to the one provided inside the building and surrounded by the outer wall W1 and the inner wall W2, but may be a space surrounded by members other than the wall. Further, the installation member is not limited to the bathroom lower structure (unit member) 1A, but a member different from the constituent member of the bathroom unit 1 is attached, and the airtight member is in close contact with this member. Good.

  Further, in the above-described embodiment, the airtight member 10 has the skin material 12 provided on one surface of the base material 11, but the invention is not limited to this, and the skin material 12 is provided on both surfaces of the base material 11. May be. Furthermore, in the above-described embodiment, the airtight member 10 is folded in two and press-fitted into the gap G. However, the present invention is not limited to this, and the skin material 12 may be bent so as to face outward, and the number of times of folding is not particularly limited. Further, in the above-described embodiment, when the gap G has a gap size of 20 mm, the thickness of the airtight member 10 folded in two is 1.1 to 3.0 times the gap G gap size. However, the size is not limited to this. That is, the thickness dimension of the airtight member to be press-fitted with respect to the gap dimension of the gap G may be appropriately set in the range of 1.1 times or more and 3.0 times or less, and the thickness of the airtight member within this range. If the thickness is increased, the close contact force of the skin material can be increased, and if it is decreased, the workability of the press-fitting work can be improved and the material can be saved.

  Further, in the above-described embodiment, as a procedure for press-fitting the airtight member 10 into the gap G, after the bathroom lower structure 1A is installed in the installation space S, a gap between the outer surfaces 8A and 9A and the inner wall WS of the outer wall W1 and the inner wall W2 is provided. When press-fitting into G, and when the inner wall W2 is built after temporarily fixing the airtight member 10 to the outer surface 9A of the bathroom lower structure 1A, the airtight member 10 is provided between the inner surface WS and the outer surface 9A of the bathroom lower structure 1A. Although the two procedures, that is, the case of press-fitting by sandwiching, are described, the order of obtaining these pressures is not limited. That is, before installing the bathroom lower structure 1A, the airtight member 10 is temporarily fixed to the inner surfaces WS of the outer wall W1 and the inner wall W2, and the airtight member 10 is sandwiched when the bathroom lower structure 1A is installed. Good. Furthermore, when the inner wall W2 is built after the bathroom lower structure 1A is installed, the airtight member 10 is temporarily fixed to the inner surface WS of the inner wall W2, and the lower room structure 1A is built along with the inner wall W2. The airtight member 10 may be sandwiched between the outer surface 9A and the outer surface 9A.

Further, in the above-described embodiment, the airtight member 10 is configured to include the base material 11 and the skin material 12, but in the reference example shown in FIG. 7, the airtight member 10A is a single layer having elasticity and airtightness. that it is composed of an elastic airtight material 13. The elastic airtight material 13 of the airtight member 10A is made of, for example, a material made of rubber or soft resin in a sheet shape, has elasticity to exert a repulsive force when compressed, and is permeable to air. Any material that does not have airtightness may be used. The elastic airtight material 13 may be a porous material as long as it is impermeable to air, and its material is not particularly limited. The airtight member 10A as described above is folded into two and press-fitted into the gap G in a manner similar to that of the above-described embodiment, and the surface of the airtight member 10A is pressed by the repulsive force of the airtight member 10A that has been pressed to the outer surface 9A of the bathroom lower structure 1A and The gap G can be closed by closely contacting the inner surfaces WS of the outer wall W1 and the inner wall W2.

  Besides, the best configuration, method, and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited thereto. That is, the invention is mainly illustrated and described with respect to particular embodiments, but without departing from the scope of the technical idea and the object of the invention, the shape of the embodiments described above is different. Those skilled in the art can make various modifications in terms of material, quantity, and other detailed configurations. Therefore, the description limiting the shapes and materials disclosed above is described as an example for facilitating the understanding of the present invention, and does not limit the present invention. The description with the names of members excluding some or all of the above limitations is included in the present invention.

1 Bathroom unit 1A Bathroom lower structure (unit member)
3 Bathtub (unit member)
4 Wash floor (unit material)
7 Bathtub apron (unit member)
8 Side vertical member (unit member)
8A, 9A Outer surface 10, 10A Airtight member 11 Base material 12 Skin material G Gap P Face material T1 Adhesive layer WS Inner surface

Claims (4)

An airtight structure in which a gap between an inner surface of an installation space surrounded by a plurality of walls, a ceiling and a floor in a building and an outer surface of a bathroom unit installed in the installation space is closed by an airtight member,
The bathroom unit forms a bathroom space surrounded by a bathtub, a wash floor, a wall panel, a ceiling panel and a bathtub apron,
The airtight member is configured to include an elastic base material, and a skin material having airtightness provided on one surface of the base material,
The airtight member is folded in two with the skin material facing downward, and the skin material is pressed into the gap so that the skin material faces the floor of the installation space. As a result, the base material is pressed to generate a repulsive force, and the repulsive force brings the skin material into close contact with the inner surface of the installation space and the outer surface of the bathroom unit . Between the inner and the airtight member of the installation space, and, according to claim 1, characterized in that between the outer surface and the airtight member of the bathroom units, the adhesive layer on at least one of is provided Airtight structure. A method of constructing a bathroom unit in which an airtight member closes a gap between an outer surface of a unit member constituting the bathroom unit and an inner surface of an installation space surrounded by a plurality of walls, a ceiling and a floor in a building in which the bathroom unit is installed. There
The bathroom unit forms a bathroom space surrounded by the bathtub, the wash floor, the wall panel, the ceiling panel, and the bathtub apron, which are the unit members,
The airtight member is configured to include an elastic base material, and a skin material having airtightness provided on one surface of the base material ,
The airtight member is adhered to at least one of the outer surface of the unit member and the inner surface of the installation space by a double-sided tape having an adhesive layer and release paper,
While bonding the adhesive layer of the double-sided tape to at least one of the outer surface of the unit member and the inner surface of the installation space, leaving the release paper,
The installation space and the bathroom are arranged so that the skin material of the airtight member is folded downward in two with the skin material facing downward, and the skin material faces the floor of the installation space. By pressing the airtight member into the gap with the unit and then pulling out the release paper of the double-sided tape, the repulsive force of the pressed base material causes the surface of the skin material to be the inner surface of the installation space and the unit. A method for constructing a bathroom unit, wherein the airtight member is held in the gap while being brought into close contact with the outer surface of the member. A method of constructing a bathroom unit in which an airtight member closes a gap between an outer surface of a unit member constituting the bathroom unit and an inner surface of an installation space surrounded by a plurality of walls, a ceiling and a floor in a building in which the bathroom unit is installed. There
The bathroom unit forms a bathroom space surrounded by the bathtub, the wash floor, the wall panel, the ceiling panel, and the bathtub apron, which are the unit members,
The airtight member is configured to include an elastic base material, and a skin material having airtightness provided on one surface of the base material ,
With the skin material of the airtight member bent downward in a state in which the skin material faces outward, the skin material faces the floor of the installation space, on the outer surface of the unit member. The airtight member is held by using a temporary fixing tape, the face material that constitutes the installation space is built from the outside toward the airtight member, and between the inner surface of the face material and the outer surface of the unit member. A method for constructing a bathroom unit, wherein the airtight member is sandwiched between and the surface of the skin material is brought into close contact with the inner surface of the installation space and the outer surface of the unit member by the repulsive force of the pressed base material .

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