JP3427008B2 - Underfloor inspection port cap - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap used for maintaining an airtightness of an inspection port provided on an underfloor foundation of a building partitioned for a unit bath.

[0002]

2. Description of the Related Art In recent years, a building has been made more airtight by a panel construction method or the like, and as shown in FIG. 5, a floor panel 17 is provided between the underfloor foundation 3 and the room to make it airtight. It is often kept. On the other hand, the unit bath 2 installed in the building includes a drop-in type that is installed by penetrating the floor panel 17, and such a drop-in type unit bath 2 is installed on the floor surface. It is installed in the space 20 surrounded by the underfloor foundation 3 without providing the panel 17. In addition, the underfloor foundation 3 that is divided to install the unit bath 2 is provided with an inspection port 4 for inspecting the underside of the unit bath 2.
Through the drainage pipe 12a, water supply pipe 12b and hot water supply pipe 12c
A connecting member 12 such as is connected to the unit bus 2.

In this way, the space 20 in the building where the unit bath 2 is installed communicates with the space 21 surrounded by the underfloor foundation 3 on the outer periphery of the building through the inspection port 4.
Further, the underfloor foundation 3 on the outer periphery of the building is provided with ventilation holes (not shown) for ventilation under the floor. Therefore, the space 20 in which the unit bath 2 is installed communicates with the outside through the inspection port 4 and the ventilation hole (not shown).

On the other hand, the space 20 for installing the unit bath 2 in the building also communicates with the space 22 such as the space above the ceiling on the first floor. Therefore, for example, when a ventilation fan is used in the dressing room 23 or the like adjacent to the unit bath 2, from the gap between the ceiling and the wall of the dressing room 23 or the gap between the unit bath 2 and the floor panel 17 of the dressing room 23. Outside air may enter through the inspection port 4 and a ventilation hole (not shown). This has the inconvenience that the resident feels cold in the dressing room 23 in winter. In particular, in a building which has been made highly airtight in recent years, since the outside air does not intrude from other places, the invasion of the outside air from the above places is noticeable and may give discomfort to the occupants. Furthermore, when high-humidity air is introduced from the inspection port 4 into the space 20 in which the unit bath 2 is installed, dew condensation occurs on the wall surface of the space 20 facing the unit bath 2 and the inside of the underfloor foundation 3. There is an inconvenience that it will occur.

In order to eliminate such an inconvenience, it is conceivable that the inspection port 4 is closed by some means, but the connecting member 12 varies depending on the type of the unit bus 2 to be installed, and therefore, at each construction site or Since there is a difference in construction depending on the worker, it is difficult to uniformly prevent invasion of outside air. The inspection port 4 is originally the unit bus 2
Since it is provided for the purpose of inspecting the underside of the vehicle, there is a disadvantage that the inspection work becomes complicated once the inspection port 4 is closed.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cap for maintaining the airtightness of an inspection port provided on an underfloor foundation of a building partitioned for a unit bath,
More specifically, an underfloor inspection port cap is provided that can easily maintain the inspection port in a substantially airtight manner in order to eliminate the inconvenience and can easily perform the inspection work even when inspecting the underfloor foundation. The purpose is to do.

[0007]

To achieve the above object, a plurality of underfloor inspection port caps of the present invention are provided on an underfloor foundation of a building partitioned for a unit bath and are connected to the unit bath. To the inspection port where the connecting member of
An underfloor inspection port cap that is detachably attached,
The incision includes a main body formed in a shape that closes the inspection port by a stretchable airtight member, and a notch that communicates the inside and outside of the underfloor foundation and extends horizontally from one side of the main body. The inspection port is held in a substantially airtight manner by inserting and holding the connecting member into the.

Since the underfloor inspection port cap of the present invention is provided with the notch in the main body attached to the inspection port, the inspection port is made substantially airtight by sandwiching the connecting member by the notch. You can Therefore, even when the ventilation fan is used indoors, the outside air is blocked from entering through the inspection port, so that the outside air does not enter through the space above the ceiling on the first floor or between the unit bath and the floor. . Further, since the notch communicates with one side of the main body, the main body can be pulled out from the connecting member by the notch when the lower part of the unit bath is inspected. Therefore, since the main body can be easily removed from the inspection port, the inspection work can be easily performed.

In the underfloor inspection port cap of the present invention, a second notch which is provided continuously with the notch of the main body and communicates the inside and outside of the underfloor foundation with a shape corresponding to the cross-sectional shape of the connecting member. Is preferably provided.
Since the second cut corresponds to the cross-sectional shape of the connecting member, the inspection port can be easily and substantially airtightly held when the connecting member is clamped.

Further, in the underfloor inspection port cap of the present invention, the notch or the second notch of the main body is provided.
Provided continuously to wear, it is preferable to provide a third cuts having a plurality formed radially communicating the inside and the outside of the underfloor foundation.
Since the plurality of third cuts are radially formed,
It deforms according to the shape of the connecting member. Therefore, for example, even when a plurality of the connecting members are densely packed and the outline of the aggregate becomes complicated, the connecting members can be sandwiched by the radial cuts without creating a gap.

The underfloor inspection port cap of the present invention is
A fixing plate fixed to one surface of the main body to open the open end side of the notch and covering the surface of the main body in a substantially U shape, and inserting the main body into the inspection port and fixing the fixing plate Is preferably fixed to the underfloor foundation.
Since the main body can be fixed to the underfloor foundation by providing the fixing plate, the main body can be more firmly inserted into the inspection port.

In the underfloor inspection port cap of the present invention, the main body is formed of a non-communicating foam resin in which each air bubble is independent , and a frame member having heat insulation and water resistance is provided around the inspection port. It is preferable to insert the main body into the inspection port via the frame member. By forming the main body from the non-communicating foamed resin, it is easy to conform to the shape of the connecting member, so that the inspection port can be easily made airtight.

On the other hand, when the main body is formed of non-communicating foamed resin, the temperature of the foamed resin is less likely to fluctuate because it has a heat retaining property, but since the underfloor foundation is usually formed of concrete, the influence of the outside air temperature is affected. Easy to receive. Therefore, when the outside air temperature fluctuates significantly, dew condensation may occur between the main body and the inspection port. Therefore, in the underfloor inspection port cap of the present invention, the main body is inserted into the inspection port via a frame member having heat insulation and water resistance. Since the frame member has a heat insulating property, even if a temperature difference occurs between the main body and the underfloor foundation, conduction of heat is blocked by the frame member, so that the occurrence of dew condensation can be prevented. . Further, even when dew condensation occurs due to a temperature difference between the frame member and the underfloor foundation, since the frame member has water resistance, there is a possibility that the frame member is damaged by dew condensation. Absent.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an example of an embodiment of the underfloor inspection port cap of the present invention will be described with reference to FIGS. FIG. 1 is an explanatory view showing a configuration of an underfloor inspection port cap of the present embodiment, FIG. 2 is an explanatory view showing a frame member installation process, and FIG. 3 is an explanatory diagram showing an underfloor inspection port cap installation process of the present embodiment. FIG. 4 and FIG. 4 are explanatory diagrams showing modified examples of the present embodiment.

The underfloor inspection port cap 1 (hereinafter simply referred to as "cap") of this embodiment is mounted on the inspection port 4 in FIG. The cap 1 is shown in FIG.
As shown in FIG. 2, the main body 5 formed in a rectangular parallelepiped shape and the main body 5
The first notch 6, the second notch 7 and the third notch 8 formed on the base 5, the fixing plate 9 fixed to one surface of the main body 5, and the inspection port 4 provided on the underfloor base 3 The frame member 10 is formed.

In the present embodiment, the main body 5 is self-supporting and is made of expandable resin. In the present embodiment, the outside 5a of the underfloor foundation 3 that is easily affected by changes in humidity and temperature because it is exposed to the outside air is made of foamed EPDM rubber having excellent weather resistance and heat resistance. . This EPDM rubber foam is a closed-cell foam, and has a structure that does not allow gas to communicate. In addition, the inner side 5b of the underfloor foundation 3 that is not easily affected by the outside air,
A cheap urethane foam resin is used.
Then, both members 5a and 5b are joined by a double-sided adhesive sheet.

The first notch 6 extends horizontally from the open end 11 which is one side of the main body 5, and penetrates from the front surface to the back surface of the main body 5 to form the underfloor foundation 3
To communicate the inside and outside.

The second notch 7 is formed in a substantially circular shape and is continuously provided with the first notch 6 and has the same diameter at four horizontal positions. This second cut 7 is usually the largest diameter of the drainage pipe 1 in the connecting member 12.
It is formed according to the standard outer diameter of 2a. Also,
In the present embodiment, the connecting portion 13 is formed at two upper and lower portions of the second cut 7 by discontinuing a part of the cut.
The cylindrical portion 14 surrounded by the second notch 7 is held so as not to be separated from the main body 5.

A plurality of the third notches 8 are radially formed on the outer periphery of the second notch 7, and the second notches 7 are formed.
It is connected to the first notch 6 through.

The fixed plate 9 is formed in a substantially U-shape and has a main body 5
It is adhered to the surface of with a double-sided adhesive sheet. In the present embodiment, the fixing plate 9 is made of a corrugated synthetic resin material that is lightweight and has high rigidity. Further, in this embodiment,
The fixing plate 9 is formed of a light-colored member so that the place can be quickly recognized with a small amount of light even in the dark.

In this embodiment, the frame member 10 is made of a polystyrene foam material having excellent heat insulation and water resistance, the inner wall of which corresponds to the shape of the outer wall of the main body 5, and the upper base 16 side is opened. It is formed in a substantially U shape. The outer wall is fixed to the inner wall of the inspection port 4.

Next, a procedure for mounting the cap 1 having the above-mentioned configuration on the inspection port 4 will be described. In this embodiment, the frame member 10 and the inspection port 4 are integrally formed when the underfloor foundation 3 is formed. First, as shown in FIG. 2A, a mold 15 for forming the underfloor foundation 3 is integrally formed with a frame member 10 and an auxiliary member 10a filling the inside thereof to form an inspection port 4 in the mold 15. It is installed in the place where
Place concrete inside. Next, when the concrete has hardened, the mold 15 is removed, and as shown in FIG.
A base 16 made of wood is installed on the formed underfloor foundation 3.
Then, as shown in FIG. 2C, the auxiliary member 10a is removed after the base 16 is installed. As a result, the inspection port 4 and the frame member 10 are integrally formed on the underfloor foundation 3.

Since the auxiliary member 10a is extracted after the base 16 is installed in this way, there is no risk of damaging the frame member 10 when installing the base 16. Further, since the inspection port 4 and the frame member 10 are integrally formed as described above, it is possible to form a gap between the inspection port 4 and the frame member 10 without causing dew condensation on the coupling surface thereof. You can avoid it.

Next, as shown in FIG. 2D, the inspection port 4
The main body 5 is attached to the frame member 10 formed in the above, the back surface of the fixed plate 9 is brought into contact with the frame member 10, the underfloor foundation 3 and the base 16, and the tucker 19 is driven from the surface of the fixed plate 9 to the base 16. The fixing plate 9 is fixed to the base 16, and the cap 1 is attached to the inspection port 4. Then, as shown in FIG. 5, the floor panel 17 and the wall panel 18 are placed on the underfloor foundation 3 and the base 16.
Assemble the above and install the unit bath 2 to construct the building.

When installing the unit bath 2, the connecting member 12 is connected to the unit bath 2 from the outside of the underfloor foundation 3 partitioned for the unit bath 2 through the inspection port 4. At this time, first, as shown in FIG.
Second part of the connecting member 12 where the drain pipe 12a is inserted
At the notch 7, the connecting portion 13 is broken up and down and the cylindrical portion 14 is removed from the main body 5. In this embodiment, the third cylindrical portion 14 from the open end 11 is removed.

Next, as shown in FIG. 3 (b), the drain pipe 12a connected to the unit bath 2 is passed through the second cut 7 from which the cylindrical portion 14 is removed, and is installed outside the underfloor foundation 3. It is connected to the drain pipe 12a. Further, the water supply pipe 12b and the hot water supply pipe 12c connected to the unit bath 2 are passed through the first to third cuts 6 to 8 to be connected to the water supply pipe 12b and the hot water supply pipe 12c installed outside the underfloor foundation 3. .

Since the main body 5 of the cap 1 of the present embodiment installed by the above steps is formed of the non-communicating foam member, the connecting member 12 is cut into the first to third cuts 6.
The inspection port 4 can be held in a substantially airtight manner by being sandwiched between 8 and 8. Therefore, the dressing room 2 adjacent to the unit bath 2
Even when a ventilation fan is used in 3 or the like, outside air is not introduced through the inspection port 4 from the gap between the ceiling and the wall of the dressing room 23 and the gap between the unit bath 2 and the floor panel 17.
Therefore, the occupants do not feel cold or uncomfortable even in winter. Further, the cap 1 can prevent invasion of high-humidity air into the space 20 in which the unit bath 2 is installed, so that dew condensation on the wall surface facing the unit bath 2 in the space 20 and the inside of the underfloor foundation 3 is prevented. be able to.

Further, since the first notch 6 extends horizontally from the open end 11, the connecting member 12 can be inserted from the open end 11, so that the connecting member 12 is already installed. Even in this case, the main body 5 of the cap 1 and the fixing plate 9 can be easily installed in the inspection port 4.
Further, since the second notch 7 is formed in the connecting member 12 so as to correspond to the cross-sectional shape of the drain pipe 12a having a large diameter, even if the drain pipe 12a is sandwiched, the second notch 7 and the drain 5 are drained. No gap is formed between the tube 12a and the tube 12a. Further, since a plurality of third cuts 8 are radially formed on the outer circumference of the second cut 7, even if the drain pipe 12a has a larger diameter than the second cut 7, the second cut 7 is formed. Is the third
Since it is expanded by the notch 8 of the main body 5 and the drain pipe 1,
There is no gap between 2a and 2a. Furthermore, since the main body 5 is firmly attached to the frame member 10 and the inspection port 4 by the fixing plate 9, the main body 5 does not fall off even when the connecting member 12 is inserted.

As described above, according to the cap 1 of this embodiment, the inspection port 4 can be easily made airtight simply by mounting the cap 1, so that the inspection site 4 and the operator are different. Even if there is, the inspection port 4 can be surely kept airtight.

On the other hand, when the lower part of the unit bath 2 is to be inspected, the operator must go under the floor to perform the work. However, since the fixing plate 9 is formed of a light-colored member,
The location of the inspection port 4 can be quickly recognized even with a slight light such as a flashlight.

When removing the main body 5 and the fixing plate 9 from the inspection port 4, the tucker 19 fixing the fixing plate 9 is used.
And the connection part 13 of the second notch 7 between the second notch 7 through which the drainage pipe 12a is inserted and the open end 11, or both, are broken. Then, as shown in FIG. 3C, the connecting member 12 is pulled out from the first notch 6 and the main body 5 and the fixing plate 9 are connected to the inspection port 4.
Remove from. As described above, according to the cap 1 of the present embodiment, since the main body 5 and the fixing plate 9 can be easily removed even when the lower part of the unit bath 2 is inspected, the inspection work can be easily performed.

Further, since the fixing plate 9 is formed in a substantially U-shape and the open end 11 side of the first notch 6 is open, the connecting member 12 can be pulled out from this open portion, so that the inspection is performed. Workability is not impaired when opening the mouth 4.

In the above embodiment, the main body 5 is made of the non-communicating foamed resin, but it is not limited to this and may be made of a rubber member or the like. Further, as shown in FIG. 4A, the second notch 7 may be formed in two different sizes. According to this, the large-diameter drain pipe 12a, the small-diameter water supply pipe 12b, or the hot water supply pipe 12c can be sandwiched together by the second cutout 7. Further, as shown in FIG. 4B, in addition to the combination of the second notch 7 and the third notch 8, only the third notch may be formed. According to this, the large diameter drainage pipe 12a can be clamped by the second notch 7, and the small diameter water supply pipe 12b or the hot water supply pipe 12c can be clamped by the third notch 8. Further, although the frame member 10 is installed when the underfloor foundation 3 is formed in the present embodiment, the present invention is not limited to this, and the frame member 10 may be attached to the inspection port 4 formed in advance.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the configuration of an underfloor inspection port cap of the present embodiment.

FIG. 2 is an explanatory view showing a frame member installation process.

FIG. 3 is an explanatory view showing an installation process of the underfloor inspection port cap of the present embodiment.

FIG. 4 is an explanatory diagram showing a modified example of the present embodiment.

FIG. 5 is an explanatory sectional view showing a state of a building where a unit bath is installed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Underfloor inspection port cap, 2 ... Unit bath, 3 ... Underfloor foundation, 4 ... Inspection port, 5 ... Main body, 6 ... 1st notch (notch), 12 ... Connection member.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F16L 5/02 A47K 4/00 F16L 1/024

Claims (5)

(57) [Claims] 1. An underfloor inspection port cap detachably attached to an inspection port which is provided on an underfloor foundation of a building partitioned for a unit bath and through which a plurality of connecting members connected to the unit bath are inserted. A main body formed in a shape that closes the inspection port by a stretchable airtight member, and a notch that connects the inside and outside of the underfloor foundation and extends horizontally from one side of the main body. An underfloor inspection port cap, characterized in that the inspection port is held in a substantially airtight manner by inserting the connecting member into the notch and sandwiching the connecting member. 2. A second notch, which is continuously provided to the notch of the main body, communicates the inside and the outside of the underfloor foundation and is formed in a shape corresponding to a cross-sectional shape of the connecting member. The underfloor inspection port cap according to Item 1. 3. The notch or the second notch in the main body
It provided continuously to interrupt, underfloor inspection port cap according to claim 1 or 2, further comprising a third cuts having a plurality formed radially communicating the inside and the outside of the underfloor foundation. 4. A fixing plate fixed to one surface of the main body to open the open end side of the notch to cover the surface of the main body in a substantially U-shape, and insert the main body into the inspection port. The underfloor inspection port cap according to any one of claims 1 to 3, wherein the fixing plate is fixed to the underfloor foundation. 5. The main body is formed of non-communicating foamed resin in which each air bubble is independent , a frame member having heat insulation and water resistance is provided around the inspection port, and the main body is inspected via the frame member. 5. It is inserted into the mouth and is attached.
The underfloor inspection port cap according to any one of 1.