JP3531898B2 - Under-floor piping construction method of building unit and under-floor piping structure of building unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping construction method for constructing piping for a water supply facility under a floor of a building unit constituting a unit type building, and an underfloor piping structure of the building unit.

[0002]

BACKGROUND ART For example, a unit-type building is built by combining a plurality of building units and the like produced in a factory in advance on site. Then, as shown in FIG.
These building units 10 include a frame 14 having four pillars 11 standing upright at four corners, and four upper beams 12 and lower beams 13 connecting upper ends and lower ends of the columns 11 with each other. And the skeleton 14 is provided with a ceiling surface material 15
The floor material 16, the inner wall, the outer wall, and other interior equipment are attached in advance in a factory to form a substantially box shape. Such a building unit 10 may be provided with a water supply facility 17 such as a bath, a washroom, and a toilet. In this case, an underfloor pipe for drainage treatment of the water supply facility 17 and the like must be provided. I won't. In addition, the pipe should have a water gradient for good drainage.

[0003]

The underfloor space in the building unit 10 as described above is a space between the floor panel 16 and the lower surface of the lower beam 13, and the building unit 10 is located above the lower floor unit. The underfloor space on the upper floor of the unit-type building when it is placed and used as an upper floor unit is a space composed of the floor below the building unit 10 and the ceiling above the lower floor unit. By the way, in a unit-type building as an industrialized house, it is desirable to install water supply facilities and the like in a building unit in a factory as much as possible in order to increase the industrialization rate and reduce the work on the site. Therefore, it is best to use the underfloor piping only under the floor of the upper floor unit, for example, but the underfloor size of the upper floor unit is limited because the size of the lower beam used is determined to some extent. .
On the other hand, pipes need a water gradient for drainage.
Therefore, if piping is attempted only under the floor of the upper floor unit, the height will be insufficient and the water gradient will be insufficient, resulting in poor drainage.

Therefore, it suffices to provide a pipe while ensuring a water gradient. However, if this is done, the opposite side of the water gradient upper side of the pipe, which is connected to the water supply facility 17, that is, the water gradient lower side, pops out from the bottom surface of the building unit. There is a possibility that the lower side of the protruding pipe 1 may conflict with the transportation restriction. In order to solve such conflicting problems, the pipe 1 may be installed on site after the upper and lower building units are assembled. In this case, since it is possible to use the underfloor of the upper floor unit and the ceiling above the lower floor unit, it is possible to secure a sufficient height, and it is possible to perform piping while securing a predetermined water gradient. However, in this case, the number of on-site work increases, the industrialization rate decreases, and the on-site work becomes complicated,
There is a new problem that the construction period cannot be shortened.

It is an object of the present invention that the drainage pipe of a water supply facility can be pre-installed at a factory so as to ensure a sufficient water gradient and not to interfere with transportation restrictions, and the on-site work is small and the construction period is short. An object of the present invention is to provide an underfloor piping construction method for a building unit and an underfloor piping structure for a building unit, which can shorten the length of the building unit.

[0006]

An underfloor piping construction method for a building unit according to the first aspect of the present invention will be described with reference to the drawings. As shown in FIGS. In the underfloor A of the building unit 10 'produced in the factory, the pipe 1 for the water supply equipment 17 installed on the floor of the building unit 10' is installed, and is arranged below the building unit at the construction site. a underfloor pipe construction method to be connected to piping lower floor building unit that, the water gradient upper U pipe 1 is connected to the plumbing equipment 17 side, the water gradient lower D in building unit 10 'in Can be accommodated
After supported by the support means 2 to Do position, the lower protruding outward, then the water gradient lower D of moving the water gradient lower D at construction site by the supporting means 2 downwards building unit 10 ' It is characterized in that it is connected to the pipe 21 of the story building unit 20.

In the above, the water supply facility means a bus,
Toilet, toilet, kitchen, etc. Further, the supporting means may be of any type such as a hanging type or a bottom receiving type as long as it can support the lower side of the water gradient of the pipe so that it can move up and down. Etc. may be used, and a form in which they are simply hung using a string-shaped member is also included. Further, the connecting structure is a lower-floor building unit or foundation.

According to the present invention as described above, since the drainage piping of the water supply facility is supported by the supporting means so that it can be housed in the building unit, it can be transported without violating the transportation restrictions and can be installed in the factory. It is possible to increase the industrialization rate. In addition, since the lower side of the water gradient of the pipe is pulled down and stored in the connection structure inside the connection structure, the drainage pipe of the water supply equipment is installed with a minimum water work and ensuring a sufficient water gradient. Therefore, the site work is not complicated, and the site work can be reduced, whereby the construction period can be shortened.

As shown in FIGS. 1 and 3, the underfloor piping construction method for a building unit according to the second invention of the present invention comprises a supporting means of the first invention and a suspending tool 2 for suspending the pipe 1 near the lower side D of the water gradient. It is characterized by having done. In the above, it is preferable that the suspending tool is hung at one place near the water gradient lower side of the pipe, but two places may be hung. In the present invention as described above, in addition to the action and effect of the first invention, since the vicinity of the lower side of the water gradient of the pipe is hung by the hanging device, the configuration is simple and the support is easy.

[0010]

Under- floor distribution of the building unit of the third invention of the present invention
The pipe structure will be described with reference to the drawings. As shown in FIGS. 1 to 3, the pipe structure constitutes a unit-type building 25, and also has a water supply facility 17 previously installed in a factory on the floor, and together with the water around equipment product pipe 1, the
An underfloor piping structure of a building unit, which enables connection of piping for water supply equipment to piping 21 of a lower floor building unit 20 arranged below the building unit at a construction site,
1 water gradient upper U is connected to the plumbing equipment was 17, the water photographies <br/> under side D is supported capable fit into the building unit 10 'located in <br/> support means 2, the pipe No. 1 is characterized in that at the construction site, the water gradient lower side D is moved downward by the supporting means 2 so as to project to the outside of the building unit 107 , and is connectable to the pipe of the lower floor building unit. It is a thing.

In the present invention as described above, since the drainage pipe of the water supply facility is supported by the supporting means so that it can be housed in the building unit, it can be transported without violating the transportation restrictions and can be installed in a factory. It is possible to increase the industrialization rate. In addition, since the lower side of the water gradient of the pipe is pulled down and stored in the connection structure inside the connection structure, the drainage pipe of the water supply equipment is installed with a minimum water work and ensuring a sufficient water gradient. Therefore, the site work is not complicated, and the site work can be reduced, whereby the construction period can be shortened.

Underfloor distribution of the building unit of the third invention of the present invention
As shown in FIGS. 1 and 3, the pipe structure is characterized in that the supporting means of the third invention is a suspender 2 for suspending the vicinity of the lower side D of the water gradient of the pipe 1. In the present invention as described above, in addition to the actions and effects of the third invention, since the vicinity of the lower side of the water gradient of the pipe is hung with the hanging device, the structure is simple and the support is easy.

[0014]

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, under the floor A of the building unit 10 ′ of the present embodiment, a pipe 1 for draining the water supply facility 17 is provided via a hanger 2. That is, the water gradient upper side (left side in the figure) U of the pipe 1 is connected to the water supply facility 17, and the water gradient lower side (right side in the figure) D is hung and supported by the hanger 2. This pipe 1 is a vertical portion 1 extending from the water supply facility 17 to the underfloor space A.
A, a linear portion 1B extending along the longitudinal direction of the lower beam, and a connecting portion 1 that flexibly connects the vertical portion 1A and the linear portion 1B.
C and C and are attached to the building unit 10 ′ in advance at the factory. At this time, the water gradient lower side D end of the straight portion 1B of the pipe 1 is designed not to stick out from the bottom surface of the lower beam 13 in the factory, and is housed in the building unit 10 '.

As shown in FIGS. 2 (A) and 2 (B), the suspender 2 has a rectangular tubular mounting frame 3 fixed to the joist 19.
A nut 4 is fixed inside the mounting frame 3 by welding or the like. A screw shaft 5 is screwed onto the nut 4 so as to be movable in the vertical direction, and a gate-shaped bracket 6 is suspended on the screw shaft 5. A retaining portion 5A is formed on the upper portion of the screw shaft 5. That is, a hole 6A is formed on the upper surface of the bracket 6, and the hole 6A
The lower part of the screw shaft 5 is inserted through A. A rotating portion 5B for rotating the screw shaft 5 is provided below the screw shaft 5, and
Above the turning portion 5B of the screw shaft 5, for example, a right-hand screw portion 5C,
Below the turning portion 5B is a left-hand threaded portion 5D.

Long brackets 6B are vertically formed on both side surfaces of the bracket 6, and a hanging ring 7 is formed in each of the brackets 6B.
The sliding portion 7A is slidably suspended in the vertical direction. Stoppers 8 are provided at both ends of the slide portion 7A.
Is attached to prevent the slide portion 7A from coming off the elongated hole 6B. The suspension ring 7 is T-shaped and has a vertical portion 7B and a pipe support portion 7C that supports the pipe 1 below the slide portion 7A. Further, a threaded hole 7D is cut on the upper surface of the suspension ring 7, and the left threaded portion 5C of the screw shaft 5 can be screwed into the threaded hole 7D.

Therefore, as shown in FIG. 2A, the suspender 2 has two positions, that is, when the suspending ring 7 is in the storage position (upper position) B and in the connecting position (lower position) C. It is possible to support the pipe 1. At the storage position B, the right-hand threaded portion 5C of the screw shaft 5 is raised to the vicinity of the upper portion of the mounting frame 3, and the left-handed threaded portion 5D and the screw hole 7D are screwed together to make the suspension ring 7 of the elongated hole 6A. It is pulled up to the uppermost position.
Therefore, the pipe support portion 7C of the suspension ring 7 is connected to the building unit 1
It does not protrude from the bottom of 0 ', that is, it is housed in the building unit 10'.

When the turning portion 5B of the screw shaft 5 is turned in one direction in this state, the left threaded portion 5D and the screw hole 7D are first unscrewed, and the suspension ring 7 is lowered to the lower end of the long hole 6A. By continuing to turn the turning portion 5B, the suspension ring 7, the bracket 6 and the like are screwed together by the screw shaft 5 and the nut 4 being screwed together.
It is designed to go down for the entire length of, that is, to go down in two steps. At this time, the pipe 1 supported by the pipe supporting portion 7C secures a predetermined water gradient from the connecting portion 1C as a starting point, as shown in FIG.

Such a building unit 10 'is placed on the lower-floor building unit 20 which is a connection structure, and the unit type building 25 is constituted by these 10' and 25. The lower-floor building unit 20 has substantially the same structure as the building unit 10 '. In such a unit-type building 25, the underfloor space A'of the building unit 10' as the upper-floor unit is the same as the building unit 10 '. The floor space of 'and the ceiling space of the lower-floor building unit 20 are combined, and the height dimension is such that the water gradient of the pipe 1 can be sufficiently secured.

Next, an underfloor piping construction method for the building unit of the present invention will be described. The water supply facility 17 is installed on the floor of the building unit 10 'in advance at the factory, and the drainage pipe 1 of the water supply facility 17 is placed under the floor A of the building unit 10'.
Attach. At this time, one end of the water gradient upper side U of the pipe 1 is connected to, for example, the lower surface of the water supply facility 17, and the water gradient lower side D
Is hung with the hanger 2. In order to support the pipe 1 by the hanger 2, the right-hand threaded portion 5C of the screw shaft 5 is raised to the vicinity of the upper portion of the mounting frame 3, and the left-handed threaded portion 5D and the screw hole 7D are screwed together to make the hanging ring 7 Is pulled up to the uppermost position of the elongated hole 6A. Therefore, the pipe support portion 7C of the suspension ring 7 is housed in the building unit 10 ', and does not interfere with the transportation of the building unit 10'.

Such a building unit is carried into a construction site, placed on the lower-floor building unit 20 as shown in FIG. 2, and then the building unit 10 'is opened near the hanging member 2 of the floor material 16. Insert a hand through the unillustrated work hole and turn the turning portion 5B of the screw shaft 5 in one direction to release the screwing of the left screw portion 5D and the screw hole 7D of the hanging ring 7 to move the hanging ring 7 one step. While lowering, further turning the turning portion 5B, the hanging ring 7, the bracket 6 and the like are lowered to the full length of the screw shaft 5 in the second step, whereby a predetermined water gradient of the pipe 1 is secured. Then, the end of the pipe 1 on the lower side D of the water gradient is connected to the pipe 21 of the lower floor building unit 20.

According to this embodiment, the following effects can be obtained. Since the drainage pipe 1 of the water supply facility 17 is suspended by the suspenders 2 and stored in the building unit 10 'to be supported, the drainage pipe 1 can be transported without violating the transport restrictions, and the pipes can be installed in the factory. It becomes possible and the industrialization rate can be increased. On the site, the water gradient lower side D of the pipe 1 is pulled down to be housed in the lower-floor building unit 20 and connected to the pipe 21. Therefore, the drainage pipe 1 of the water supply facility 17 can be sufficiently used with less field work. It can be installed with a secure water gradient,
On-site work is not complicated, and the amount of on-site work is small, which can shorten the construction period.

By rotating the screw shaft 5, the suspender 2
Since it can be suspended at two positions, the storage position B and the connection position C, the position of the pipe can be easily adjusted. The hanging tool 2 may be attached by attaching the mounting frame 3 to the joist 19 of the building unit 10 '. On the other hand, since a plurality of joists 19 are bridged, the most suitable one is used according to the position of the pipe. This makes it easy to attach the hanger 2 and thus to install the piping.

The present invention is not limited to the above-described embodiment, but may be modified as follows as long as the object of the present invention can be achieved. That is, although the screw shaft 5 of the first embodiment has a normal screw pitch, the screw shaft 5 is not limited to this and may be a screw shaft having a double screw pitch, for example. By doing this, the storage position B
From the connection position C to the connection position C becomes quick.

Further, although the pipe 1 of the above-described embodiment has the flexible connecting portion 1C, the present invention is not limited to this, and a pipe having, for example, an elbow in the bent portion may be used. In such a pipe, since the end on the upper side of the water gradient cannot be connected to the water supply facility at the factory, it will be connected on site, but the same effects as in the above embodiments can be obtained.

[0027]

As described above, according to the underfloor piping construction method for a building unit and the underfloor piping structure for a building unit according to the present invention, drainage pipes for water supply equipment are installed in a building unit by a supporting means. Is supported so that
It can be transported without violating the transportation restrictions, and it can be constructed in factories to increase the industrialization rate. In addition, since the lower side of the water gradient of the pipe is pulled down and stored in the connection structure inside the connection structure, the drainage pipe of the water supply equipment is installed with a minimum water work and ensuring a sufficient water gradient. Therefore, the site work is not complicated, and the site work can be reduced, whereby the construction period can be shortened.

[Brief description of drawings]

FIG. 1 is an overall view showing a building unit in which piping is installed under a floor according to an embodiment of the present invention.

FIG. 2 is a side view showing a state in which the suspender of the present embodiment is in two positions.

FIG. 3 is a diagram showing a unit-type building configured by placing the building unit of the present embodiment on a lower-floor building unit.

FIG. 4 is an overall perspective view showing a general building unit.

[Explanation of symbols]

1 Piping for water supply equipment 2 Hanging equipment that is a support means 5 screw shaft 7 hanging ring 7C pipe support 10 'Building unit with piping installed under the floor 17 Water supply facilities 20 Lower-floor building unit that is a connected structure Space under the floor of the A building unit B storage position C connection position U water gradient upper side D Water gradient lower side

Claims (4)

(57) [Claims] 1. A unit-type building is constructed, and a pipe for a water supply facility installed on the floor of the building unit is installed under the floor of the building unit produced in advance in a factory, and the building is constructed at the construction site. a underfloor pipe construction method to be connected to piping lower floor building unit which is disposed below the unit, to connect the water gradient above the pipe to the water around equipment side, the water gradient lower front SL building after supported by supporting means which can be positioned fit in the unit, to the outside of <br/> the building units is moved downward by the support means <br/> before Kisui gradient lower in construction site Project, and then the water
An underfloor piping construction method for a building unit, characterized in that the subordinate side is connected to the piping of the lower floor building unit. 2. The underfloor piping construction method for a building unit according to claim 1, wherein the supporting means is a suspender for suspending the vicinity of a lower side of the water gradient of the piping. . 3. A unit type building and a floor
It has a water supply facility installed in the factory in advance, and it is under the floor.
While having the piping for the water supply facility, the water supply
Distribute equipment piping below the building unit at the construction site.
A building that can be connected to the piping of the lower floor building unit
Under-floor piping structure of the unit, above the water gradient of the piping
The side is connected to the water supply facility, and the lower side of the water gradient is the building.
Supported by support means at a position where it can be stored in the object unit.
At the construction site, the pipe is supported on the lower side of the water gradient.
Is moved downward by means to the outside of the building unit
It is projected and can be connected to the piping of the lower floor building unit.
Under-floor piping structure of the building unit characterized by
Structure. 4. The underfloor piping structure for a building unit according to claim 3, wherein the supporting means is a suspender for suspending the vicinity of the lower side of the water gradient of the piping.