Piping unit, sanitary equipment system, and installation method for sanitary equipment system

Abstract

To improve workability at construction sites.SOLUTION: A piping unit U comprises a clean water supply pipe 25 and a grey water supply pipe 34 that form a water supply path connected to a toilet bowl 10 as sanitary equipment, and the clean water supply pipe 25 and the grey water supply pipe 34 are flexible. Since the clean water supply pipe 25 and the grey water supply pipe 34 are flexible, they can be transported to a construction site in a long, wound or bent form. When installing the clean water supply pipe 25 and the grey water supply pipe 34 at the construction site, there is no need to connect short pipes to make a long piping, which improves workability.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present disclosure relates to a piping unit, a sanitary equipment system, and a method for installing a sanitary equipment system.

Background Art

[0002] Patent Document 1 discloses a sanitary equipment unit in which a plurality of sanitary equipment are installed in parallel in a public facility. The sanitary equipment unit includes a plurality of casings that individually support a plurality of sanitary equipment, and piping for supplying and discharging water to and from the sanitary equipment. When constructing the sanitary equipment unit, first, the casings assembled at the factory are transported to the construction site. Also, the piping is transported to the installation site by a means different from the casings. At the construction site, first, the piping is fixed to the building structure. Next, the casings are installed for each sanitary equipment. Then, the sanitary equipment is attached to the installed casings, and the piping is connected to the sanitary equipment.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The piping includes a main pipe along a parallel path of a plurality of sanitary equipment and a plurality of branch pipes branched from the main pipe and individually connected to each sanitary equipment. The length of the main pipe increases as the number of a plurality of sanitary equipment increases. However, if the main pipe is manufactured as a single long member, it will hinder storage and transportation. Therefore, the main pipe was divided into a plurality of short pipes. However, when divided into a plurality of short pipes, it is necessary to connect the plurality of short pipes into a long main pipe at the construction site, and the workability at the construction site is not good.

[0005] The present disclosure has been made in view of the above-described conventional circumstances, and aims to solve the problem of improving workability at a construction site.

Means for Solving the Problem

[0006] The piping unit of the first disclosure includes piping that constitutes a water supply path connected to a sanitary fixture, and the piping has flexibility.

[0007] The sanitary fixture system of the second disclosure includes a sanitary fixture, a frame that supports the sanitary fixture, and piping that constitutes a water supply path connected to the sanitary fixture, and the piping has flexibility.

[0008] The construction method of the sanitary fixture system of the third disclosure is a method for constructing a sanitary fixture system including a sanitary fixture, a frame that supports the sanitary fixture, and piping that constitutes a water supply path connected to the sanitary fixture, wherein the piping includes a main pipe having flexibility and a branch pipe derived from the main pipe and connected to the sanitary fixture, and the method includes fixing the main pipe to the building structure, fixing the frame to the structure, and attaching the sanitary fixture to the frame.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Mode for Carrying Out the Invention

[0010] First, the embodiments of the present disclosure will be listed and described. Combinations of the following multiple embodiments that do not cause contradictions are also included in the mode for carrying out the invention. <First Disclosure> [1] The pipe unit of the first disclosure includes a pipe that constitutes a water supply path connected to a sanitary fixture, and the pipe has flexibility. According to this configuration, since the pipe has flexibility, it can be carried into the construction site in a form wound as a long length or in a bent form. When installing the pipe at the construction site, there is no need to connect short pipes to form a long pipe, so the workability is good.

[0011] [2] In the above [1], it is preferable that the pipe includes a flexible main pipe capable of supplying water to a plurality of the sanitary fixtures installed in a parallel state. According to this configuration, water can be supplied to a plurality of sanitary fixtures installed in a parallel state by the flexible main pipe.

[0012] [3] In any of the above [1] and [2], it is preferable that the pipe includes a flexible main pipe longer than the width dimension of the sanitary fixture.

[0013] [4] In any of the above [1] and [2], the pipe has a pipe body and a pipe joint for connecting the pipe body. The pipe joint has a joint body with a flow path inside. It is preferable that the pipe joint is connected so that the pipe body can rotate relative to the joint body. According to this configuration, by rotating the pipe body relative to the joint body, the assembly error between a plurality of pipe bodies can be absorbed. Therefore, the workability during construction is good.

[0014] [5] In the above [4], it is preferable that the flow path has a bent shape inside the joint body and the axes of a plurality of the connection parts are in different directions from each other. According to this configuration, even if the axes of a plurality of pipe bodies connected to the pipe joint are in different directions from each other, the assembly error between the plurality of pipe bodies can be absorbed.

[0015] [6] In any of the above [1] to [2], it is preferable to provide a fixing member for fixing the pipe to the building frame. According to this configuration, by using the fixing member, it becomes easier to adjust the mounting position of the pipe and the construction becomes easier.

[0016] [7] In any of the above [1] to [2], the sanitary fixture is a toilet having a local cleaning function and a bidet cleaning function, and the pipe preferably includes at least one of a water supply pipe for supplying city water for local cleaning to the toilet and a middle water supply pipe for supplying middle water for toilet cleaning to the toilet.

[0017] [8] In the above [7], the toilet is provided with a tank for toilet cleaning, and it is preferable that the inner diameter of the middle water supply pipe is set to a dimension such that the water supply flow rate to the tank is 12 L / min or more and 90 L / min or less.

[0018] <Second Disclosure> [9] The sanitary fixture system of the second disclosure includes a sanitary fixture, a frame for supporting the sanitary fixture, and a pipe constituting a water supply path connected to the sanitary fixture, and the pipe has flexibility.

[0019] <Third Disclosure>

[10] The construction method of the sanitary equipment system of the third disclosure includes a sanitary equipment, a frame that supports the sanitary equipment, and piping that constitutes a water supply path connected to the sanitary equipment. The piping includes a main pipe having flexibility and a branch pipe that is derived from the main pipe so as to branch and is connected to the sanitary equipment. The method of constructing a sanitary equipment system is to fix the main pipe to the building structure, fix the frame to the structure, and attach the sanitary equipment to the frame. According to this construction method, since it is not necessary to insert the main pipe into the frame in a form where the branch pipes are branched, the workability is good.

[0020]

[11] In the above

[10] , it is preferable that the branch pipe has flexibility. According to this configuration, the workability when connecting the branch pipe to the sanitary equipment is good.

[0021] <Fourth Disclosure> In the sanitary equipment unit described in Patent Document 1, the casing and the piping are separately carried into the construction site. When the casing is carried into the construction site prior to the piping and then the piping is carried in on a different day, a space for storing the previously arrived casing must be secured at the construction site. As a countermeasure, it is desired to carry the casing and the piping into the construction site simultaneously.

[0022]

[12] The conveying member of the piping unit of the fourth disclosure includes a first storage portion for storing piping connected to the sanitary equipment and a second storage portion for storing a frame for supporting the sanitary equipment. The piping and the frame can be integrally conveyed as a piping unit in a state where they are separated from each other. According to this configuration, since both the piping and the frame can be supported and integrally conveyed, the piping and the frame can be carried into the construction site simultaneously.

[0023]

[13] In

[12] above, it is preferable to include a first cart having the first storage unit and a second cart having the second storage unit, and the first cart and the second cart can be displaced between a form in which they are connected to each other and a form in which they are separated from each other. According to this configuration, even when the frame and the piping are manufactured in separate factories, the manufactured piping can be loaded onto the first cart in the factory, and the manufactured frame can be loaded onto the second cart in the factory.

[0024] <Fifth Disclosure>

[14] The piping unit package of the fifth disclosure includes the conveying member described in

[12] or

[13] , the piping, and the frame. According to this configuration, since both the piping and the frame can be supported and integrally conveyed, the piping and the frame can be simultaneously carried into the construction site.

[0025] <Embodiment 1> Hereinafter, Embodiment 1 embodying the present disclosure will be described with reference to FIGS. 1 to 9. In the following description, regarding the front-rear direction, the front side of the user sitting on the toilet seat 13 of the toilet 10 is defined as the front side, and the back side of the user is defined as the rear side, and the F direction in FIGS. 1 to 6 and 9 is defined as the front. Regarding the up-down direction, the H direction in FIGS. 1 to 6 and 9 is defined as the up. Regarding the left-right direction, the directions seen from the user sitting on the toilet seat 13 are directly defined as the left side and the right side, and the R direction in FIGS. 1 to 6 and 9 is defined as the right side.

[0026] The sanitary equipment system S of the present Embodiment 1 includes a plurality of toilets 10 (sanitary equipment) installed in public facilities or the like and a piping unit U. The plurality of toilets 10 are arranged in a straight line along the wall W which is the building structure. As shown in FIGS. 1 and 4, the toilet 10 includes a toilet body 11 having a toilet bowl portion 12, a toilet seat 13 attached to the upper surface of the toilet body 11, a tank 14 for supplying washing water into the toilet bowl portion 12, and a local washing device 15. The toilet seat 13 and the local washing device 15 are integrated with the toilet body 11.

[0027] The piping unit U includes one drain pipe 16, a plurality of fixing members 20, two pipes 25 and 34, and a plurality of frames 40. The drain pipe 16 is a member that constitutes a discharge path for discharging the stored water in the toilet bowl portion 12. As shown in FIG. 2, the drain pipe 16 is configured by coaxially connecting a plurality of short pipes 17S made of synthetic resin through rubber joints 17J. A branch pipe 18 connected to each toilet body 11 and a vent pipe 19 are connected to the drain pipe 16. The vent pipe 19 is configured by coaxially connecting a plurality of short pipes 19S through rubber joints 19J.

[0028] As shown in FIGS. 2 and 3, the fixing member 20 includes a plurality of plates 21 fixed to the wall W of the building and a plurality of fittings 22 provided on the plates 21. The plurality of fixing members 20 are members for fixing the two pipes 25 and 34 to the wall W.

[0029] As shown in FIGS. 2 and 3, the two pipes 25 and 34 are composed of one water supply pipe 25 for tap water and one water supply pipe 34 for reclaimed water. The water supply pipe 25 for tap water constitutes a supply path for supplying washing water to the local washing device 15 of the toilet 10. The water supply pipe 25 for tap water is composed of one main water supply pipe 26 for tap water and a plurality of branch water supply pipes 27 branched from the main water supply pipe 26 for tap water. One main water supply pipe 26 for tap water includes a plurality of short water supply tubes 28 and a pipe joint 30 connecting the short water supply tubes 28 to each other.

[0030] The short water supply tube 28 for tap water has a form in which a tube body (not shown) made of polybutene resin is surrounded by a cylindrical heat insulating material made of urethane foam (not shown), and this cylindrical heat insulating material is surrounded by a corrugated tube (not shown). The branch water supply pipe 27 for tap water is a member having the same configuration as the short water supply tube 28 for tap water. Since the short water supply tube 28 for tap water and the branch water supply pipe 27 for tap water have flexibility, they can be bent and deformed at a curvature that does not cause plastic deformation. As a form of deformation, it is possible to wind the main water supply pipe 26 for tap water in a circular shape and store the branch water supply pipe 27 for tap water inside the loop of the main water supply pipe 26 for tap water.

[0031] As shown in FIG. 7, the pipe joint 30 has a joint body 31 with a T-shaped flow path 32 and three connection parts 33 for connecting the short water supply tubes 28 and the water supply branch pipes 27 to the three ends of the flow path 32. Two of the three connection parts 33 have two short water supply tubes 28 coaxially connected thereto. One remaining connection part 33 has one water supply branch pipe 27 connected thereto with its axis orthogonal to the short water supply tube 28. The two short water supply tubes 28 and one water supply branch pipe 27 connected to the pipe joint 30 are all rotatable relative to the joint body 31 about the axis.

[0032] The non-potable water supply pipe 34 constitutes a supply path for supplying washing water to the tank 14 of the toilet 10. The non-potable water supply pipe is composed of one non-potable water main pipe 35 and a plurality of non-potable water branch pipes 36 branched from the non-potable water main pipe 35. One non-potable water main pipe 35 is configured to include a plurality of non-potable water short tubes 37 and a pipe joint 30 connecting the non-potable water short tubes 37 to each other. The non-potable water short tubes 37 and the non-potable water branch pipes 36 are members having the same configuration as the short water supply tubes 28. Similar to the potable water main pipe 26 and the potable water branch pipes 27, the non-potable water short tubes 37 and the non-potable water branch pipes 36 also have flexibility and can be bent and deformed at a curvature that does not cause plastic deformation. The pipe joint 30 of the non-potable water supply pipe 34 is a member having the same structure as the pipe joint 30 of the potable water supply pipe 25.

[0033] The frame 40 is a member formed by joining a metal material and a metal plate and integrating them. As shown in FIGS. 5 and 6, the frame 40 includes a front frame 41, a pair of left and right arms 42, a connecting bar 43 that connects the rear ends of the left and right arms 42, a front plate portion 44, a support plate portion 45, and a pedestal portion 46. The front frame 41 is square in a front view of the frame 40 viewed from the front. The arm 42 extends rearward from the upper end portion of the front frame 41. The connecting bar 43 has an elongated shape in the left-right direction and connects the rear ends of the left and right arms 42. The front plate portion 44 is fixed to the lower end portion of the front frame 41 with the plate thickness direction oriented in the front-rear direction. A circular through-hole 48 is formed in the front plate portion 44. The support plate portion 45 is disposed above the front plate portion 44 and horizontally protrudes rearward from the front frame 41. The pedestal portion 46 extends rearward from the lower end portions of the front frame 41 and the front plate portion 44.

[0034] Among the piping units U, one water supply pipe 25 for upper water, one middle water supply pipe 34, and a plurality of frames 40 are to be simultaneously carried into the construction site by a single transport pallet 70. As shown in FIG. 9, the transport pallet 70 includes a horizontal bottom plate 71B, a horizontal placement plate 71P, a plurality of spacers 72, two front and rear first storage portions 73, and one second storage portion 75. The placement plate 71P is disposed above the bottom plate 71B. The plurality of spacers 72 are rod-shaped and are fixed so as to be interposed between the upper surface of the bottom plate 71B and the lower surface of the placement plate 71P. The first storage portion 73 is a frame-shaped portion formed by assembling a plurality of rod-shaped members. Inside the first storage portion 73, two front and rear first storage spaces 74 with open upper surfaces are formed. The second storage portion 75 is a box-shaped portion surrounded by plate portions on the front, rear, left, and right. Inside the second storage portion 75, a second storage space 76 with an open upper surface is formed. A gap corresponding to the height of the spacer 72 is provided between the bottom plate 71B and the placement plate 71P. A fork of a forklift (not shown) can enter this gap.

[0035] Among the piping units U, the fresh water supply pipe 25 and the reclaimed water supply pipe 34 are manufactured in the first factory (not shown). The frame 40 of the piping unit U is manufactured in a second factory different from the first factory (not shown). In the second factory, the drain pipe 16 is fixed to the frame 40 via the bracket 47. A transport pallet 70 is carried into the second factory.

[0036] The manufactured fresh water supply pipe 25 is individually wound annularly and stored in the storage bag 65 within the first factory (see Fig. 8). Note that in Fig. 8, the shape of the fresh water supply pipe 25 is drawn in a simplified manner. The manufactured reclaimed water supply pipe 34 is also, like the fresh water supply pipe 25, individually wound annularly and stored in the storage bag 65 within the first factory. The length of one fresh water supply pipe 25 and one reclaimed water supply pipe 34 is the same length, for example, about 5 to 6 m. The bagged fresh water supply pipe 25 and reclaimed water supply pipe 34 are transferred to the second factory.

[0037] In the second factory, one bag of fresh water supply pipe 25 and one bag of reclaimed water supply pipe 34 are loaded onto one transport pallet 70. That is, the fresh water supply pipe 25 is accommodated in one first storage space 74, and the reclaimed water supply pipe 34 is accommodated in the other first storage space 74. Also, the manufactured frame 40 is loaded onto this transport pallet 70. A plurality of frames 40 are loaded onto one transport pallet 70. That is, a plurality of frames 40 are accommodated in a state of being arranged in series within one second storage space 76. Thereby, the piping unit package P1 is configured.

[0038] When transporting the piping unit package P1 (piping unit U) to the construction site of the sanitary equipment system S, a transport pallet 70 loaded with the water supply pipe 25 for tap water, the water supply pipe 34 for reclaimed water, and the frame 40 is transferred to a truck (not shown) by a forklift (not shown), and then transported to the construction site by the truck. By transporting the piping unit package P1 to the construction site, one water supply pipe 25 for tap water, one water supply pipe 34 for reclaimed water, a plurality of frames 40, and a plurality of drain pipes 16 in the piping unit U are simultaneously transported. Incidentally, in FIG. 9, for the sake of convenience, the frame 40 is drawn in a simplified rectangular shape.

[0039] The construction procedure of the sanitary equipment system S at the construction site will be described. First, the fixing member 20 is fixed to the wall W. Incidentally, in FIGS. 2 and 4, for the sake of convenience, the drain pipe 16 is drawn in a state of floating in the air at the height supported by the frame 40. At this time, since the frame 40 is not attached to the wall W and the floor F, the fixing work of the fixing member 20 can be carried out without any trouble.

[0040] Next, the water supply pipe 25 for tap water and the water supply pipe 34 for reclaimed water are taken out from the storage bag 65, and the main water supply pipe 26 for tap water and the main water supply pipe 35 for reclaimed water are straightened and temporarily placed along the rear of the position where a plurality of toilets 10 are installed. When the main water supply pipe 26 for tap water is twisted, the short water supply pipe 28 for tap water is rotated with respect to the joint body 31 of the pipe joint 30 to eliminate the twist. Similarly, when the main water supply pipe 35 for reclaimed water is twisted, the twist is eliminated in the same way.

[0041] Next, attach the main water supply pipe 26 and the main reclaimed water pipe 35 to the fixture 22 of the fixing member 20. After fixing the main water supply pipe 26 and the main reclaimed water pipe 35 to the fixing member 20, check whether the branching direction of the water supply branch pipe 27 from the main water supply pipe 26 is suitable for connection to the toilet 10. If the direction of the water supply branch pipe 27 is not suitable, correct the direction of the water supply branch pipe 27 by rotating the water supply branch pipe 27 and the joint body 31 relative to the main water supply pipe 26. When the branching direction of the reclaimed water branch pipe 36 from the main reclaimed water pipe 35 is not suitable, adjust the direction of the reclaimed water branch pipe 36 in the same manner as above. Since the main water supply pipe 26 and the main reclaimed water pipe 35 are attached with the frame 40 not fixed to the wall W and the floor F, the attachment work can be carried out smoothly.

[0042] After the attachment of the water supply pipe 25 for water supply and the water supply pipe 34 for reclaimed water is completed, fix the frame 40 to which the drain pipe 16 is attached to the wall W and the floor F. When fixing the frame 40, fix the connecting bar 43 to the wall W and fix the pedestal portion 46 to the floor F. When the frame 40 is installed on the wall W and the floor F, the drain pipe 16, the water supply pipe 25 for water supply, and the water supply pipe 34 for reclaimed water are in a state of being accommodated in the space between the front frame 41 of the frame 40 and the wall W. In a side view of the frame 40 viewed from the side, the drain pipe 16, the water supply pipe 25 for water supply, and the water supply pipe 34 for reclaimed water are arranged so that their entire bodies are within the internal space of the frame 40. The drain pipe 16, the water supply pipe 25 for water supply, and the water supply pipe 34 for reclaimed water do not protrude upward and forward from the outer frame of the frame 40. For some of the plurality of frames 40, connect adjacent frames 40 with a connecting member 49. After installing the frame 40, as shown in FIG. 3, fix the branch pipe 18 of the drain pipe 16 to the through hole 48 of the frame 40.

[0043] Once the fixing of the drain pipe 16 is completed, attach the toilet 10 to the frame 40. When attaching, fix the toilet body 11 to the front surface of the front plate portion 44 and connect the branch pipe 18 of the drain pipe 16 and the toilet body 11. The tank 14 is fixed in a state of being placed on the upper surface of the support plate portion 45. After attaching the toilet body 11 and the tank 14 to the frame 40, connect the branch pipe 27 for water supply to the local cleaning device 15 and connect the branch pipe 36 for intermediate water to the tank 14. Once the installation of the toilet 10 is completed, attach the decorative panel 66 to the frame 40 (see Fig. 1). Thus, the construction of the sanitary equipment system S is completed.

[0044] The sanitary equipment system S of the first embodiment includes a toilet 10 as a plurality of sanitary equipment and a piping unit U. The piping unit U includes a plurality of frames 40 that support a plurality of toilets 10 and piping (the water supply pipe 25 for water supply and the water supply pipe 34 for intermediate water). The water supply pipe 25 for water supply and the water supply pipe 34 for intermediate water constitute a water supply path connected to a plurality of toilets 10. Since the water supply pipe 25 for water supply and the water supply pipe 34 for intermediate water have flexibility, even if they are in a long form, they can be carried into the construction site in a wound form or a bent form. When installing and routing the water supply pipe 25 for water supply and the water supply pipe 34 for intermediate water at the construction site, it is not necessary to connect short tubes 28 and 37 to form long pipes 25 and 34, so the workability is good.

[0045] The water supply pipe 25 for the upper water and the intermediate water supply pipe 34 include main pipes 26 and 35 that can supply water to a plurality of flush toilets 10 installed in parallel. The main pipes 26 and 35 are flexible. The lengths of the main pipes 26 and 35 are set to be longer than the width dimension of one flush toilet 10. The lengths of the main pipes 26 and 35 are set to be longer than the distance between the centers in the width direction of adjacent flush toilets 10. The lengths of the main pipes 26 and 35 are set to be longer than the width dimension of the individual rooms (not shown) where the flush toilets 10 are installed. The main pipes 26 and 35 are routed along the parallel paths of the plurality of flush toilets 10 installed in parallel. According to this configuration, water can be supplied to the plurality of flush toilets 10 installed in parallel by the flexible main pipes 26 and 35. Since the main pipes 26 and 35 are routed along the parallel paths of the plurality of flush toilets 10 installed in parallel, they are long, but because they are flexible, the workability at the construction site is good.

[0046] The water supply pipe 25 for the upper water and the intermediate water supply pipe 34 have short tubes 28 and 37 as a plurality of pipe bodies, branch pipes 27 and 36, and a pipe joint 30 that connects the short tubes 28 and 37 and the branch pipes 27 and 36. The pipe joint 30 has a joint body 31 having a flow path 32 inside and a plurality of connection parts 33 provided at the ends of the flow path 32. The connection parts 33 connect the short tubes 28 and 37 and the branch pipes 27 and 36 so that they can rotate relative to the joint body 31. By rotating the short tubes 28 and 37 and the branch pipes 27 and 36 relative to the joint body 31, it is possible to absorb the assembly error between the short tubes 28 and 37 and the assembly error between the short tubes 28 and 37 and the branch pipes 27 and 36. Therefore, the workability during construction is good.

[0047] The flow path 32 of the pipe joint 30 has a bent shape inside the joint body 31. The axes of the plurality of connection parts 33 are in different directions from each other. According to this configuration, even if the axes of the short tubes 28 and 37 and the branch pipes 27 and 36 connected to one pipe joint 30 are in different directions from each other, it is possible to absorb the assembly error between the short tubes 28 and 37 and the branch pipes 27 and 36.

[0048] The piping unit U includes a fixing member 20 for fixing the fresh water supply pipe 25 and the gray water supply pipe 34 to a wall W which is a building body. According to this configuration, by using the fixing member 20, it becomes easier to adjust the mounting positions of the fresh water supply pipe 25 and the gray water supply pipe 34, and the construction becomes easier. The piping unit U includes a frame 40 that supports the toilet 10 in a state fixed to a wall W and a floor F which are bodies. The fixing member 20 is configured to be able to fix the fresh water supply pipe 25 and the gray water supply pipe 34 to the wall W in a state where the frame 40 is not fixed to the wall W and the floor F. According to this configuration, when laying the fresh water supply pipe 25 and the gray water supply pipe 34 and fixing them to the wall W (fixing member 20), the frame 40 does not get in the way, so the workability is good.

[0049] The sanitary appliances constituting the sanitary appliance system S are a toilet 10 including a local cleaning device 15 having a local cleaning function and a tank 14 having a toilet cleaning function. The pipes 25, 34 include a fresh water supply pipe 25 for supplying fresh water for local cleaning to the toilet 10 and a gray water supply pipe 34 for supplying gray water for toilet cleaning to the toilet 10. Cleaning water is supplied from the gray water supply pipe 34 to a tank 14 for toilet cleaning provided in the toilet 10. The inner diameter of the gray water supply pipe 34 is set to a dimension such that the water supply flow rate from the gray water supply pipe 34 to the tank 14 is 12 L / min or more and 90 L / min or less.

[0050] The sanitary equipment system S includes a plurality of toilets 10, a plurality of frames 40 that support the plurality of toilets 10, one main water supply pipe 25 and one reclaimed water supply pipe 34 that constitute a water supply path connected to the plurality of toilets 10. The main water supply pipe 25 and the reclaimed water supply pipe 34 include flexible main pipes 26, 35 and a plurality of branch pipes 27, 36 that are branched from the main pipes 26, 35 and connected to the plurality of toilets 10. The construction of this sanitary equipment system S is carried out in the procedure of fixing the main pipes 26, 35 to the wall W which is the building structure, fixing the frames 40 to the wall W and the floor F which are the structures, and attaching the toilets 10 to the frames 40. According to this construction method, since it is not necessary to insert the water supply pipes 25, 34 in the shape where the branch pipes 27, 36 are branched from the main pipes 26, 35 into the frames 40, the workability is good. Since the branch pipes 27, 36 have flexibility similar to that of the main pipes 26, 35, the workability when connecting the branch pipes 27, 36 to the toilets 10 is good.

[0051] Different from the first embodiment, when the frame 40 is carried into the construction site prior to the main water supply pipe 25 and the reclaimed water supply pipe 34, and then the main water supply pipe 25 and the reclaimed water supply pipe 34 are carried in on another day, at the construction site, a space for storing the previously arrived frame 40 must be secured. As a countermeasure, it is desirable to carry the frame 40, the main water supply pipe 25, and the reclaimed water supply pipe 34 into the construction site simultaneously.

[0052] In the first embodiment, a piping unit package P1 is used as a means for transporting the fresh water supply pipe 25, the reclaimed water supply pipe 34, and the frame 40. The piping unit package P1 includes a transport pallet 70, the fresh water supply pipe 25 and the reclaimed water supply pipe 34 connected to the toilet 10, and the frame 40 for supporting the toilet 10, and these are integrated. The transport pallet 70 is a transport member for transporting the fresh water supply pipe 25, the reclaimed water supply pipe 34, and the frame 40 together. The transport pallet 70 includes a first storage portion 73 for storing the fresh water supply pipe 25 and the reclaimed water supply pipe 34, and a second storage portion 75 for storing the frame 40. By configuring the piping unit package P1 using the transport pallet 70, it is possible to integrally transport the fresh water supply pipe 25, the reclaimed water supply pipe 34, and the plurality of frames 40 as a piping unit U in a mutually separated state. By using the transport pallet 70, the fresh water supply pipe 25, the reclaimed water supply pipe 34, and the frame 40 can be stored and integrally transported, so that the fresh water supply pipe 25, the reclaimed water supply pipe 34, and the frame 40 can be simultaneously carried into the construction site.

[0053] <Embodiment 2> Hereinafter, Embodiment 2 in which the present disclosure is embodied will be described with reference to FIGS. 10 to 11. In Embodiment 2, the transport cart 50 constituting the piping unit package P2 has a different form from that in Embodiment 1. The transport cart 50 is a transport member for transporting the fresh water supply pipe 25, the reclaimed water supply pipe 34, and the frame 40 together.

[0054] Among the piping units U, one fresh water supply pipe 25, one reclaimed water supply pipe 34, and a plurality of frames 40 are to be simultaneously carried into the construction site by one transport cart 50. As shown in FIGS. 10 and 11, the transport cart 50 is configured by connecting a first cart 51 and a second cart 59.

[0055] The first cart 51 is a cart for transporting one water supply pipe 25 and one reclaimed water supply pipe 34. The first cart 51 has a horizontal plate-shaped first support base 52, a pair of left and right casters 53, a pair of left and right legs 54, and two front and rear first storage parts 55. The casters 53 are arranged at both left and right ends of the front end part of the lower surface of the first support base 52. The pair of legs 54 are arranged at both left and right ends of the rear end part of the lower surface of the first support base 52. The first cart 51 maintains a self-standing state by the pair of casters 53 and the pair of legs 54.

[0056] The first storage part 55 is a frame-shaped part formed by assembling a plurality of rod-shaped members. Inside the first storage part 55, two front and rear first storage spaces 56 with open upper surfaces are formed. On the rear end surface of the first support base 52, a pair of left and right connecting protrusions 57 protruding in a cantilever state rearward are formed. On the rear end parts of the left and right outer side surfaces of the first support base 52, a pair of connecting pins 58 with axes oriented in the left-right direction are arranged.

[0057] The second cart 59 is a cart for transporting a plurality of frames 40. The second cart 59 has a horizontal plate-shaped second support base 60, four casters 53, and one second storage part 61. The four casters 53 are arranged at four locations, namely, both left and right ends of the front end part of the lower surface of the second support base 60 and both left and right ends of the rear end part. The second storage part 61 is a box-shaped part surrounded by plate parts on the front, rear, left, and right. Inside the second storage part 61, a second storage space 62 with an open upper surface is formed. On the front end surface of the second support base 60, a pair of connecting holes 63 are formed. On the front end parts of the left and right outer side surfaces of the second support base 60, a pair of left and right connecting hooks 64 rotatable around an axis in the left-right direction are provided.

[0058] The first cart 51 and the second cart 59 are held in a connected state by fitting the connecting protrusion 57 into the connecting hole 63 and locking the connecting hook 64 to the connecting pin 58. By removing the connecting hook 64 from the connecting pin 58 and extracting the connecting protrusion 57 from the connecting hole 63, the connection between the first cart 51 and the second cart 59 can be released.

[0059] Among the piping units U, the fresh water supply pipe 25 and the reclaimed water supply pipe 34 are manufactured at a first factory (not shown). A plurality of first carts 51 are carried into the first factory. The manufactured fresh water supply pipe 25 is individually wound annularly in the first factory and loaded onto the first cart 51 in a state of being stored in the storage bag 65 (see FIG. 8). In FIG. 8, the shape of the fresh water supply pipe 25 is drawn in a simplified manner. The manufactured reclaimed water supply pipe 34 is also loaded onto the first cart 51 in a state of being individually wound annularly in the first factory and stored in the storage bag 65, similar to the fresh water supply pipe 25. The length of one fresh water supply pipe 25 and one reclaimed water supply pipe 34 is the same, for example, about 5 to 6 m. One bag of fresh water supply pipe 25 and one bag of reclaimed water supply pipe 34 are loaded onto one first cart 51. That is, the fresh water supply pipe 25 is accommodated in one of the first storage spaces 56, and the reclaimed water supply pipe 34 is accommodated in the other first storage space 56.

[0060] Among the piping units U, the frame 40 is manufactured at a second factory (not shown) different from the first factory. A plurality of second carts 59 are carried into the second factory. The manufactured frame 40 is loaded onto the second cart 59 in the second factory. A plurality of frames 40 are loaded onto one second cart 59. That is, a plurality of frames 40 are accommodated in one second storage space 62 in a state of being arranged in a row.

[0061] When the piping unit U is carried into the construction site of the sanitary equipment system S, at the first factory, the second factory, or a place other than both factories, the first cart 51 loaded with the fresh water supply pipe 25 and the reclaimed water supply pipe 34 and the second cart 59 loaded with the frame 40 are connected. Thereby, the transport cart 50 is configured, and the piping unit package P2 is configured. By transporting the piping unit package P2 to the construction site, one fresh water supply pipe 25, one reclaimed water supply pipe 34, and a plurality of frames 40 of the piping unit U are simultaneously carried in. In FIG. 10, for the sake of convenience, the frame 40 is drawn in a simplified rectangular shape.

[0062] In the second embodiment, a piping unit package P2 is used as a means for transporting the water supply pipe 25, the middle water supply pipe 34, and the frame 40. The piping unit package P2 includes a transport cart 50, the water supply pipe 25 and the middle water supply pipe 34 connected to the toilet 10, and a frame 40 for supporting the toilet 10, and these are integrated. The transport cart 50 is a transport member for transporting the water supply pipe 25, the middle water supply pipe 34, and the frame 40 together. The transport cart 50 includes a first storage portion 55 for storing the water supply pipe 25 and the middle water supply pipe 34, and a second storage portion 61 for storing the frame 40. By configuring the piping unit package P2 using the transport cart 50, it is possible to integrally transport the water supply pipe 25, the middle water supply pipe 34, and the plurality of frames 40 as a piping unit U in a state where they are separated from each other. By using the transport cart 50, the water supply pipe 25, the middle water supply pipe 34, and the frame 40 can be stored and integrally transported, so that the water supply pipe 25, the middle water supply pipe 34, and the frame 40 can be simultaneously carried into the construction site.

[0063] The transport cart 50 includes a first cart 51 having the first storage portion 55 and a second cart 59 having the second storage portion 61. The first cart 51 and the second cart 59 can be displaced between a form in which they are connected to each other and a form in which they are separated from each other. By using this transport cart 50, even when the frame 40 is manufactured in a factory different from the water supply pipe 25 and the middle water supply pipe 34 that have been manufactured, the manufactured water supply pipe 25 and middle water supply pipe 34 can be loaded onto the first cart 51 in the factory, and the manufactured frame 40 can be loaded onto the second cart 59 in the factory.

[0064] <Other Embodiments> The present disclosure is not limited to the embodiments described by the above description and drawings. For example, the following embodiments are also included in the technical scope of the present disclosure. The piping is not limited to a form in which both the main pipe and all the branch pipes have flexibility. The main pipe may have flexibility, and at least some of the plurality of branch pipes may not have flexibility. The sanitary appliance includes not only a toilet but also a urinal and a washbasin. When installing the piping unit for a urinal, fix the main pipe to the building structure and leave the branch pipe free without fixing. Next, install the frame, connect the branch pipe to the urinal, and then fix the branch pipe to the frame. The material of the pipe for realizing flexibility may be a material other than polybutene. The pipe joint may be in a form in which a connecting portion that rotatably connects the pipe body to the joint body and a connecting portion that non-rotatably connects the pipe body to the joint body are mixed. The pipe joint may have two connecting portions. In this case, the axes of the two connecting portions may be coaxial with each other or may have different directions. The pipe joint is not limited to an I-shape or a T-shape, and may be an L-shape, a Y-shape, or a cross-shape. The fixing member for fixing the pipe to the building wall may be embedded in the wall. The inner diameter of the non-potable water supply pipe may be set to a dimension such that the water supply flow rate to the tank is less than 12 L / min or a dimension such that the water supply flow rate to the tank is more than 90 L / min. The pipes (potable water supply pipe and non-potable water supply pipe) may be fixed to the frame. The pipes may be attached to the frame in a state where the frame is not fixed to the structure, or may be attached to the frame in a state where the frame is fixed to the structure. In a side view or a plan view, a part of the pipes (potable water supply pipe and non-potable water supply pipe) may protrude outside the outer frame of the frame. The arrangement of a plurality of toilets (sanitary appliances) is not limited to a form in which they are arranged in a straight line along a planar wall, but may also be a form in which they are arranged along a wall that forms a curve in a plan view, a form in which they are arranged back-to-back with a partition wall protruding from the structure wall in between, or a form in which they are attached to a plurality of partition walls protruding in parallel from the structure wall. The transport cart of Embodiment 2 may be in a form that cannot be connected or separated. In Embodiments 1 and 2, the first storage portion is not limited to a box shape and may be a frame shape. In Embodiments 1 and 2, the second storage portion is not limited to a frame shape and may be a box shape.

Explanation of Reference Numerals

[0065] F … Building frame (building structure), S … Sanitary equipment system, U … Pipe unit, W … Wall (building structure), 10 … Toilet (sanitary equipment), 14 … Tank, 20 … Fixing member, 25 … Water supply pipe for water supply (pipe), 26 … Main pipe for water supply (main pipe), 27 … Branch pipe for water supply (branch pipe), 28 … Short water supply tube (pipe body), 30 … Pipe joint, 31 … Joint body, 32 … Flow path, 33 … Connection part, 34 … Water supply pipe for reclaimed water (pipe), 35 … Main pipe for reclaimed water (main pipe), 36 … Branch pipe for reclaimed water (branch pipe), 37 … Short reclaimed water supply tube (pipe body), 40 … Frame

Claims

1. A piping unit comprising a pipe that constitutes a water supply path connected to a sanitary appliance, wherein the pipe has flexibility.

2. The piping unit according to claim 1, wherein the pipe includes a flexible main pipe capable of supplying water to a plurality of the sanitary appliances installed in parallel.

3. The piping unit according to any one of claims 1 and 2, wherein the pipe includes a flexible main pipe longer than the width dimension of the sanitary appliance.

4. The pipe has a pipe body and a pipe joint connecting the pipe body, wherein the pipe joint has a joint body having a flow path inside, and the pipe joint is connected so that the pipe body can rotate relative to the joint body. The piping unit according to any one of claims 1 and 2.

5. The flow path has a bent shape inside the joint body, and the axes of the plurality of connection portions are in different directions from each other. The piping unit according to claim 4.

6. The piping unit according to any one of claims 1 and 2, further comprising a fixing member for fixing the pipe to a building structure.

7. The sanitary appliance is a toilet having a local cleaning function and a bidet cleaning function, and the pipe includes at least one of a water supply pipe for supplying city water for local cleaning to the toilet and a middle water supply pipe for supplying middle water for toilet cleaning to the toilet. The piping unit according to any one of claims 1 and 2.

8. The toilet is provided with a tank for toilet cleaning, and the inner diameter of the middle water supply pipe is set to a dimension such that the water supply flow rate to the tank is 12 L / min or more and 90 L / min or less. The piping unit according to claim 7.

9. A sanitary appliance system comprising: a frame that supports the sanitary appliance; a pipe that constitutes a water supply path connected to the sanitary appliance, wherein the pipe has flexibility.

10. A method for constructing a sanitary appliance system comprising: a frame that supports the sanitary appliance; a pipe that constitutes a water supply path connected to the sanitary appliance, wherein the pipe includes a flexible main pipe and a branch pipe derived from the main pipe and connected to the sanitary appliance, the method comprising: fixing the main pipe to a building structure; fixing the frame to the structure; attaching the sanitary appliance to the frame.

11. The construction method of the sanitary equipment system according to claim 10, wherein the branch pipe has flexibility.

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