JP5430102B2 - Drainage structure, drainage structure for shower room, drainage structure for waterproof pan for washing machine - Google Patents

Description

  The present invention relates to a drainage structure, and more particularly to a drainage structure that is advantageous for floor reduction, a drainage structure for a shower room, and a drainage structure for a waterproof pan for a washing machine.

  In a conventional unit bath, a height dimension from the slab surface to the floor surface of the unit bath (hereinafter referred to as a dimension under the floor) is required to be about 250 to 300 mm. This is mainly due to the fact that a certain amount of height is required for a sealed drainage trap disposed under the floor.

  On the other hand, barrier-free design has become the mainstream in recent houses, and the floor level of the entire dwelling unit, including the floor level of the bathroom washroom and the floor level of the dressing room, is required to be the same or have few steps. ing. For this reason, the floor under the floor of the entire dwelling unit, including the dressing room, is sufficient even if 120 mm is sufficient, considering the piping of the water supply / hot water supply, electricity / gas, etc. Adjust the floor level of the entire dwelling unit including the dressing room to the floor level of the bathroom washroom, or drop the slab surface of the bathroom and dressing room, and adjust the floor level of the bathroom and dressing room to the level of the entire house. It matches the floor level.

  In addition, since bathtubs for elderly people make the bathtub straddle low, it is necessary to make the bathtub installation part low. In that case, the drainage part at the bottom of the bathtub or the floor pan (bathtub pan) drainage part at the bathtub installation side must be lowered. Moreover, since the bathtub drainage was connected to a trap installed in the washing area, the height of the trap installed on the washing area was increased, and as a result, the floor surface of the unit bath was increased.

Moreover, in order to maintain the sealing strength, the sealed trap requires a certain sealing depth (according to SHASE-S218, the sealing depth is required to be at least 50 mm). There is a limit.
As a drainage structure of the unit bath, for example, there is a drainage structure disclosed in Patent Document 1, and further floor reduction is required in the market.

JP-A-10-168972

  In view of the above facts, an object of the present invention is to provide a drainage structure that is more advantageous for lowering the floor than a conventional one, a drainage structure for a shower room, and a drainage structure for a waterproof pan for a washing machine.

The drainage structure according to claim 1 of the present invention includes a first drainage port disposed at the bottom of the bathtub, a second drainage port disposed on the floor surface of the washroom , the first drainage port, and the A sealed trap into which the drainage discharged from the second drainage port flows, and a bottom raised portion having an upward projection is provided on a part of the floor surface of the washing place, and the inside of the bottom raised portion A trap is disposed, and the trap has an inlet for allowing the drainage to flow into the trap, disposed below the level of the sealing water provided in the trap, and the upper end of the trap is at least the second of the washing place. The trap is disposed so as to be located above the floor surface on which the drainage outlet is disposed.

Next, the operation of the drainage structure according to claim 1 will be described.
According to the drainage structure of Claim 1, the hot water of a bathtub is performed via the 1st drainage port. The floor water is supplied through the second drainage port.
Drainage flows into the trap through an inflow port disposed below the liquid level of the sealed water, and is drained into downstream sewage or the like.

  Here, in the conventional bathroom structure, since hot water from a washing place or the like is allowed to flow into the trap from an inlet provided at the upper part of the trap, the trap is provided at the lowest part of the floor of the washing place. However, according to the drainage structure of the first aspect, since the floor drainage can flow into the second drainage port, there is no need to allow the floor drainage to flow from the upper part of the trap (in addition, the floor drainage). It is not necessary to place the trap at the lowest part of the floor surface.

In the drainage structure according to claim 1, since the trap is disposed so that the upper end of the trap is at least above the floor surface where the second drainage port of the washing place is disposed, the height of the floor surface is reduced. Therefore, the size under the floor of the bathroom can be made smaller than before.
For example, when a trap is placed in the bathroom (inside the bathroom wall), a bottom raised portion is provided on at least one of the floor surface of the bathroom wash floor and a part of the bottom of the bathtub, and the trap is placed in the interior. Place. At least one of a part of the floor surface of the bathroom washing area and a part of the bottom part of the bathtub is increased, but the entire height of the remaining floor surface excluding the part can be decreased.

In addition, if a trap is arrange | positioned inside the bottom raising part provided in the bathtub, the bottom raising part for arrange | positioning a trap to the washing-room side will become unnecessary. If the trap is disposed inside the raised portion provided in the washing area, it is not necessary to provide the raised portion in the bathtub, and the bottom portion of the bathtub can be flattened.
In addition, the trap can be disposed outside the bathroom as well as inside the bathroom (inside the bathroom wall) as long as there is a space for placing the trap outside the bathroom (outside the bathroom wall). When the trap can be disposed outside the bathroom, the bottom of the bathtub and the floor can be completely flattened.

  According to a second aspect of the present invention, in the drainage structure according to the first or second aspect, the trap includes an opening that opens into the bathroom and a lid that closes the opening.

  According to the drainage structure of the second aspect, since the opening that is closed by the lid is provided at the upper part of the trap, the inside of the trap can be easily inspected and cleaned by removing the lid in the bathroom. it can.

  Invention of Claim 3 has the bathroom by which the said bathtub is arrange | positioned on the said floor surface in the drainage structure of Claim 1 or Claim 2.

In drainage structure according to 請 Motomeko 1 or claim 2, wherein the floor has been placed only on the side of the tub, also be a structure having a bathroom and the tub and the floor are integrated it can.

The drainage structure of the shower room includes a drain outlet arranged on the floor and a sealed trap into which drainage discharged from the drain outlet flows, and the trap allows the drainage to flow into the interior. The trap is disposed so that the inlet of the trap is disposed below the level of the sealing water provided in the trap, and the upper end of the trap is positioned above the floor surface where the drain port is disposed. The structure can be made .

Next, the effect | action of the drainage structure of the shower room described above is demonstrated.
The drainage structure of the shower room described above is substantially the configuration in which the bathtub is omitted from the drainage structure of claim 1.

According to the drainage structure of the shower room described above , hot water on the floor surface of the shower room is performed via the drainage port.
Drainage flows into the trap through an inflow port disposed below the liquid level of the sealed water, and is drained into downstream sewage or the like. Even in the drainage structure of the shower room described above , since it is not necessary to allow drainage to flow from the upper part of the trap, it is not necessary to arrange the trap at the lowest part of the floor surface of the shower room.

In the drainage structure of the shower room described above , the inlet for allowing the drainage to flow into the inside is disposed below the level of the sealing water provided in the trap, and the upper end of the trap is disposed with the drain outlet. Since the trap is disposed so as to be positioned above the floor surface, the height of the floor surface of the shower room can be lowered, and thereby the size under the floor can be made smaller than before.
For example, when a trap is arranged in the shower room (inside the wall of the shower room), a bottom raised portion is provided on a part of the floor surface of the shower room, and the trap is arranged therein. Although a part of the floor surface is increased, the entire height of the remaining floor surface excluding the part can be decreased.

  In addition, if there is a space for the trap to be placed outside the shower room (outside the shower room wall) where the drain is located, the trap will be located in the shower room (the inside of the shower room wall where the drain is located). ), But can also be placed outside the shower room. When the trap can be arranged outside the shower room where the drain outlet is arranged, the floor surface of the shower room can be completely flattened.

The drainage structure of the waterproof pan for a washing machine includes a drainage port disposed on a floor surface and a sealed trap into which drainage discharged from the drainage port flows, and the trap has the drainage inside. The inlet for inflow is disposed below the level of the sealing water provided in the trap, and the upper end of the trap is positioned above the floor surface where the drain port is disposed. A structure in which traps are arranged can be used .

According to the drain structure of the waterproof pan for a washing machine described above , the water on the floor surface of the waterproof pan for the washing machine is supplied through the drain port.
Drainage flows into the trap through an inflow port disposed below the liquid level of the sealed water, and is drained into downstream sewage or the like. Also in the drain structure of the waterproof pan for a washing machine according to claim 6, since it is not necessary to allow drainage to flow from the upper part of the trap, it is necessary to arrange the trap at the lowest part of the floor surface of the waterproof pan for the washing machine. Absent.

In the drainage structure of the waterproof pan for a washing machine described above , the inlet for allowing the drainage to flow into the inside is disposed below the level of the sealing water provided in the trap, and the upper end of the trap is the drain outlet. Since the trap is positioned so as to be positioned above the floor, the floor of the room where the waterproof pan for the washing machine is installed can be lowered. The size under the floor of the room where the machine waterproof pan is installed can be reduced.
For example, when a trap is disposed on a waterproof pan for a washing machine, a bottom raised portion is provided on a part of the floor surface of the waterproof pan for a washing machine, and the trap is disposed therein. A part of the floor surface of the waterproof pan for a washing machine is raised, but the height of the entire floor surface of the remaining waterproof pan for a washing machine except the part can be lowered.

  In addition, if the trap has a space for placing the trap outside the waterproof pan for the washing machine, the trap is not limited to the waterproof pan for the washing machine in which the drain outlet is arranged, but the trap is placed outside the waterproof pan for the washing machine. You can also. In the case where the trap can be disposed outside the waterproof pan for the washing machine where the drain outlet is disposed, the floor surface of the waterproof pan for the washing machine can be completely flattened.

The invention according to claim 4, in the drainage structure according to any one of claims 1 to 3, the upper part of the trap, the inflow portion is provided for flowing the waste water into the trap .
According to the drainage structure of the seventh aspect, the drainage can be caused to flow into the trap also from the inflow portion at the top of the drainage trap.

In drainage structure of the aforementioned shower, to the upper part of the trap, it can be a structure in which the inflow portion for flowing the waste water in the trap is provided.
According to the drainage structure of the shower room described above , drainage can be caused to flow into the trap also from the inflow portion at the top of the drainage trap.

The drainage structure of the waterproof pan for a washing machine described above may have a structure in which an inflow portion for allowing drainage to flow into the trap is provided at an upper portion of the trap.
According to the drainage structure of the waterproof pan for a washing machine described above , the drainage can also flow into the trap from the inflow portion at the top of the drainage trap.

  Since the drainage structure of the present invention is configured as described above, it has an excellent effect that the underfloor dimensions of the building can be reduced.

[First Embodiment]
Below, 1st Embodiment of the unit bath to which the drainage structure of this invention was applied is described based on drawing.
FIG. 1 is a partial cross-sectional view schematically showing a configuration of a drainage structure of a unit bath 10 according to the present embodiment, and FIG. 2 is a perspective view of a main part of the unit bus 10.

In the unit bath 10 according to the present embodiment, a waterproof pan 14 for a bathroom as a floor surface of the present invention is disposed on a slab 12 via a support member (not shown).
On the upper side of the bathroom waterproof pan 14, a bathtub 16 as a container for storing hot water for bathing is disposed on one side, and a portion other than the bathtub 16 of the bathroom waterproof pan 14 is provided with a washing place 18 for washing the body. It has become. A unit bath having a structure in which the bathtub 16 is disposed on the upper part of the bathroom waterproof pan 14 may be referred to as a full-pan unit bath.

The bathtub 16 is provided with a drain port 20 (first drain port of the present invention) for discharging hot water accumulated in the bathtub 16 and can be closed with a stopper 21.
The bathroom waterproof pan 14 is provided with a drain port 25 (second drain port of the present invention) for discharging hot water or the like from the drain port 20 below the drain port 20. An eye plate 27 is attached to the drain port 25.
On the other hand, the washing place 18 of the bathroom waterproof pan 14 is provided with a drain port 22 (second drain port of the present invention) for discharging hot water used when washing the body, hot water overflowing from the bathtub 16 and the like. ing. An eye plate 23 is attached to the drain port 22. The washing place 18 is slightly inclined so that the bathtub side is lowered, and the drain port 22 is provided at the lowest part of the floor surface 18A of the washing place 18.

The bathroom waterproof pan 14 has a bottom raised portion 24 formed on one wall surface side (in the direction of arrow R in FIG. 2) so that a part of the wall surface of the floor surface 18A of the washing place 18 protrudes upward. Is provided.
A sealed drainage trap 26 is arranged inside the bottom raising portion 24. The floor surface 18 </ b> A excluding the bottom raised portion 24 is located at a position lower than the upper end 26 </ b> A of the drain trap 26.

  The drain trap 26 includes a drain trap body 28. The drain trap body 28 has a bottomed cylindrical shape, and a drain port 30 is formed in a part of the side surface. The drain port 30 is connected to a drain pipe 32 connected to sewage or the like. The drain pipe 32 is sloped so as to decrease as the distance from the drain trap 26 increases.

The drain trap body 28 has a bottom 28B on the lower side and an opening 28A on the upper side. The opening 28 </ b> A is disposed on the top side of the bottom raising portion 24.
As shown in FIG. 2, a lid 38 having an eye plate 23 is attached to the opening 28 </ b> A.
An outer cylinder 34 is formed inside the drain trap body 28 so as to rise from the bottom 28B. The outer cylinder 34 is configured to store the waste water inside the drain trap body 28, and the waste water overflowing from the upper end of the outer cylinder 34 flows to the drain port 30.

An inner cylinder 36 extending downward from the opening 28 </ b> A toward the bottom 28 </ b> B is provided on the upper portion of the drain trap body 28.
The inner cylinder 36 is inserted into the outer cylinder 34, and the lower side is immersed in the drainage stored in the outer cylinder 34. In addition, the height h from the lower end of the inner cylinder 36 to the upper end of the outer cylinder 34 becomes the sealing depth (for example, 50 mm).

  A drain port body 28 has a first inlet 42 connected to a drainage port 20 of the bathtub 16 and a drainage pipe 40 for the bathtub, and a drainage port 22 of the washing place 18 and a drainage pipe 44 for the washing place. A second inflow port 46 is formed.

The first inflow port 42 and the second inflow port 46 are disposed below the liquid level of the sealing water 50 (the upper end of the outer cylinder 34) stored in the trap.
Further, the drain outlet 25 below the bathtub 16 and the drain outlet 22 of the washing place 18 are located above the liquid level (the upper end of the outer cylinder 34) of the sealing water 50 stored inside the trap, and the drain trap. 26 is lower than the upper end 26A.

(Function)
Next, the effect | action of the drainage structure of the unit bath 10 which concerns on this embodiment is demonstrated.
In the drainage structure of the unit bath 10 according to the present embodiment, the wastewater from the washing place 18 flows into the drainage trap 26 from the drainage port 22 of the washing place 18 through the washing place drainage pipe 44, and inside the drainage trap body 28. The drainage that is stored and overflows from the upper end of the outer cylinder 34 flows into the drainage pipe 32 from the drainage port 30 and is discharged from the unit bath 10.
In addition, drainage from the washing place 18 can also be performed from the opening 28A (eye plate 23) of the upper part of the drain trap 26.

  On the other hand, the drainage from the bathtub 16 is discharged from the drainage port 20 of the bathtub 16, flows into the drainage trap 26 through the drainage port 25 and the wastewater drainage pipe 44, and is stored inside the drainage trap body 28, The waste water overflowing from the upper end of the tube 34 flows into the drain pipe 32 from the drain port 30 and is discharged from the unit bath 10.

  According to the drainage structure of the unit bath 10 of the present embodiment, the drain trap 26 is disposed inside the bottom raised portion 24 provided in a part of the floor surface 18A, and the floor surface 18A is positioned lower than the upper end 26A of the drain trap 26. Therefore, the dimension under the floor of the unit bath 10 can be made smaller than that of the conventional unit (as an example, about 50 mm).

  In order to perform efficient drainage, it is preferable that the drain core H of the drain trap 26 is as high as possible. However, according to the drain structure of the unit bath according to the present embodiment, drainage is performed more than the floor surface 18A of the washing place 18. Since the trap 26 is arranged at a high position, a high drain core H can be secured while lowering the floor than the conventional drain structure.

As the drain trap 26, a conventional structure can be used. In the present embodiment, drainage from the washing place 18 is performed at two places, the drainage opening 22 and the opening 28A of the drainage trap 26, but at least the drainage opening provided at the lowest position of the floor surface 18A of the washing place 18. The drainage of the washing place 18 from 22 is possible.
Since the water on the floor of the washroom 18 flows to the drain port 22 provided at the lowest position of the floor surface 18A (usually, the floor surface is sloped so that the water on the floor flows toward the drain port. Therefore, if the drainage port 22 is disposed at the lowest position of the floor surface 18A in the washing place 18, and drainage is performed from the drainage port 22, it is necessary and sufficient as drainage of the washing place 18. That is, drainage may be performed from the opening 28A of the drain trap 26 in which the bottom raising portion 24 located at a position higher than the floor surface 18A is disposed, but it is not always necessary to drain from the opening 28A.
Therefore, when there is no need to drain from the opening 28A, the lid 38 may not have the eye plate 23 for draining (that is, the lid 38 prevents drainage from flowing into the trap from the opening 28A). However, it may be configured to completely block the opening 28A).
Moreover, although the inner cylinder 36 is provided in the drain trap 26 shown in FIG. 1, the inner cylinder 36 may be omitted.

[Second Embodiment]
Next, a second embodiment of the drainage structure of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment, and the description is abbreviate | omitted.
As shown in FIG. 3, in the unit bath 10 of the present embodiment, the hot water flowing into the drain 20 of the bathtub 16 is once drained onto the bathroom waterproof pan 14 under the bathtub, and the drain 22 on the washing place 18 side. The drainage trap 26 is caused to flow through the drainage pipe 44 for the washing place. For this reason, the drain port 25, the eye plate 27, the drain pipe 40 for bathtubs, etc. are unnecessary, and can reduce a number of parts rather than 1st Embodiment.
Also in this embodiment, the same effect as the first embodiment can be obtained.

[Third Embodiment]
Next, a third embodiment of the drainage structure of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment, and the description is abbreviate | omitted.
As shown in FIG. 4 and FIG. 5 (A), the bathtub 16 of the present embodiment is provided with a bottom raised portion 16A formed so that a part of the bottom is convex upward, and the bottom raised portion 16A. A drain trap 26 is disposed below the bottom.
As shown in FIG. 5 (A), the opening 28A of the drain trap 26 may be completely closed with a lid 38 not provided with an eye plate, as shown in FIG. 5 (B). You may make it close with the lid | cover 38 in which the hole 54 which can be closed with 56 was formed. 5B, the hot water stored in the bathtub 16 can be drained from the hole 54 if the stopper 56 is removed.

In the present embodiment, since the drain trap 26 is not disposed on the washing station side, the bottom raising portion 24 on the washing station side can be reduced, and if the drain pipe 32 is moved closer to the wall side, the floor surface 18A of the washing station 18 can be reduced. It can be flat.
Also in this embodiment, the same effect as the first embodiment can be obtained.

[Fourth Embodiment]
Next, a fourth embodiment of the drainage structure of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment, and the description is abbreviate | omitted.
In the unit bath 10 of the first and second embodiments described above, the bathtub 16 is disposed on the waterproofing pan 14 for bathroom, but the unit bath 10 of the third embodiment is as shown in FIG. There is no waterproof pan below the bathtub 16, and the bathtub 16 and the washing area 18 are integrally molded. Note that the unit bus having such a structure may be referred to as a unit bus having a half-pan structure.
Also in this embodiment, the same effect as the first embodiment can be obtained.

[Other Embodiments]
In the above-described embodiment, the drainage discharged from the drain trap 26 is connected to the sloped drainage pipe 32, but may be connected to a siphon drainage system that discharges using siphon force. In the siphon drainage system, since it is not necessary to provide a gradient to the horizontal pipe arranged on the slab, the height for providing the gradient of the pipe is not required, and the size under the floor is further reduced as compared with the first embodiment. It is also possible. That is, in addition to adopting the drainage structure of the unit bath 10 of the present embodiment, the size under the floor including the unit bath portion can be reduced by adopting the siphon drainage system.

Further, in the drainage structure of the present invention, the drainage trap 26 is not limited to the structure shown in the above embodiment, and a sealed drainage trap having another conventionally known structure can also be used.
In the above embodiment, the drain pan 22 (second drain port of the present invention) of the waterproof pan is one or two, but there may be three or more.

  In the above embodiment, the opening 28A of the drain trap 26 is closed by the lid 38, but the opening 28A may not be provided if inspection or cleaning of the inside of the trap is not necessary.

  Moreover, when arrange | positioning the drainage trap 26 below the bathtub 16, as shown in FIG. 7, if the inspection port 52 is provided in the side surface (apron) of the bathtub 16, and the drainage trap 26 is spaced apart from the bathtub 16, The lid 38 can be opened and closed from the inspection port 52. Thereby, it is not necessary to provide the lid 38 in the bathtub.

Further, a decorative lid or the like may be provided on the eye plate 23 so as not to disturb the drainage.
Moreover, in the said embodiment, although it was the structure which provides the drain trap 26 in a bathroom (inside the wall surface of a bathroom), drainage performance can be ensured, the space provided between the wall surface of a bathroom and the outer wall of a building, a bathroom The drain trap 26 may be disposed in a portion other than the bathroom as long as it can be disposed in a portion other than the bathroom, such as a space provided between the wall surface of the room adjacent to the bathroom and the wall surface of the bathroom.

  In the above-described embodiment, an example in which the invention is applied to a unit bath has been described. However, the present invention can be applied to all parts having a drain outlet connected to a drain trap, such as a shower room and a waterproof pan for a washing machine. . For example, when a drain trap is arranged in the shower room (inside the wall of the shower room), a bottom raised portion is provided on a part of the floor surface of the shower room, and the drain trap may be arranged in the inside (that is, the above-mentioned The thing of the structure which excluded the bathtub 16 and the drainage path from the bathtub 16 from embodiment). Even in the shower room, a part of the floor surface becomes high, but the entire height of the remaining floor surface excluding the part can be lowered. If the drain trap can be arranged outside the shower room, the floor surface of the shower room can be completely flattened.

  Further, when the invention is applied to a waterproof pan for a washing machine, a bottom raised portion is formed at a part of the bottom of the waterproof pan for a washing machine, a drain trap is disposed inside the bottom raised portion, and a drain trap is connected to the bottom It is set as the structure which arrange | positions the drain port to perform (that is, the thing of the structure which excluded the bathtub 16 and the drainage path from the bathtub 16 from the said embodiment). Thereby, the whole height (thickness) of the waterproof pan for washing machines including a drain trap can be made small. Further, if the drain trap can be disposed outside the waterproof pan for the washing machine, the floor surface of the waterproof pan for the washing machine can be completely flattened.

It is a fragmentary sectional view which shows roughly the structure of the drainage structure of the unit bath which concerns on 1st Embodiment. It is a perspective view which shows the principal part of the unit bus which concerns on 1st Embodiment. It is a fragmentary sectional view which shows roughly the structure of the drainage structure of the unit bath which concerns on 2nd Embodiment. It is a perspective view which shows the principal part of the unit bus which concerns on 1st Embodiment. (A) It is a fragmentary sectional view which shows roughly the structure of the drainage structure of the unit bath which concerns on 3rd Embodiment, (B) is other embodiment of a lid | cover. It is a fragmentary sectional view which shows roughly the structure of the drainage structure of the unit bath which concerns on 4th Embodiment. It is a fragmentary sectional view which shows roughly the structure of the drainage structure of the unit bath which concerns on other embodiment.

Explanation of symbols

10 Unit bath 12 Slab 14 Waterproof pan 16 Bath 18A Floor 18 Washing area 20 Drain outlet (first drain outlet)
22 Drainage port (second drainage port)
25 Drainage port (second drainage port)
26 Drain trap 26A Upper end 28A Opening (inflow part)
30 Drain port 38 Lid 42 Inlet 46 Inlet 50 Sealed water

Claims (4)

A first drain located at the bottom of the bathtub;
A second drain located on the floor of the washroom ;
A sealed-type trap into which waste water discharged from the first drain port and the second drain port flows, and
Provide a bottom raised portion with an upward projection on a part of the floor surface of the washing place, and place the trap inside the raised portion,
In the trap, the inlet for allowing the drainage to flow into the inside is disposed below the liquid level of the sealing water provided in the trap,
A drainage structure in which the trap is arranged so that an upper end of the trap is positioned at least above the floor surface on which the second drainage port of the washing place is arranged.   The drainage structure according to claim 1, wherein the trap includes an opening that opens into the bathroom and a lid that closes the opening.   The drainage structure according to claim 1 or 2, further comprising a bathroom in which the bathtub is disposed on the floor surface. The drainage structure according to any one of claims 1 to 3 , wherein an inflow portion for allowing drainage to flow into the trap is provided at an upper portion of the trap.

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