JP3525075B2 - Underfloor equipment construction method of apartment house - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor facility construction method for an apartment house. 2. Description of the Related Art When constructing a housing complex, piping is constructed under the floor. This piping includes a water supply pipe, a hot water supply pipe, a gas pipe, and the like, as well as a drain pipe for discharging sewage or domestic waste water. And the drainage pipe is the largest in size. By the way, in a housing complex, it is desirable that the height from the upper surface of the slab to the floor on which the householder steps (hereinafter referred to as “underfloor height”) is as low as possible. If the height under the floor is large, the ceiling height of the indoor space is lowered, giving a sense of oppression to the householder. On the other hand, if a sufficient ceiling height is secured while the underfloor height is large, the floor height becomes large, and the height of the apartment house itself becomes several times larger, resulting in poor space efficiency. [0004] In most apartment houses, vertical pipes for drainage are arranged so as to penetrate the upper and lower floors in the exclusive part. However,
If it does in this way, the floor plan in an exclusive part must be performed according to arrangement | positioning of a vertical pipe, and a floor plan cannot be designed freely. In addition, after the family begins to live, it is practically impossible to remove the existing vertical pipes even if they attempt to renovate their own part (plan change) in accordance with changes in the family structure, etc. is there. This is because the change of the position of the vertical pipe is related to the interests of the living people on the upper and lower floors, and it is extremely difficult to obtain approval for the change of the position of the vertical pipe from this living person. Therefore, it is almost impossible to perform the renovation as desired, for example, by drastically changing the position of the bathroom, being bound by the position of the existing vertical pipe. In order to avoid such a situation and to allow free design and free renovation,
In other words, a vertical tube may be arranged in the shared part. In the exclusive part, it is conceivable to arrange a necessary round tube under the floor and connect the end of the round tube to the vertical tube of the common part. However, since this round pipe has a small flow rate per height, in order to ensure a sufficient flow rate, the drain pipe must be made large in diameter, and the floor height tends to be large. Also, since drainage uses natural flow, the drainage pipe is usually 1/100, at least 1
It is necessary to give a gradient of about / 150 to 1/200.
This gradient is indispensable, but it is one of the causes for increasing the underfloor height. Furthermore, drain pipes often cross each other in the so-called water area such as a bathroom or in front of a bathroom. In many cases, drain pipes and water supply pipes cross each other or are arranged substantially parallel to each other. In this way, in the part where the same or different types of pipes are close to each other and interfere with each other (hereinafter simply referred to as “intersection”), the height below the floor is greater than the height of one drain pipe than the other part. End up. Therefore, in the conventional apartment houses, the height under the floor tends to be large, and it is difficult to secure a sufficient ceiling height, and if the sufficient ceiling height is secured, the floor height becomes large and the space efficiency is deteriorated. There was a problem. In addition, in the above-mentioned spaces where there are no intersections, such as living rooms and bedrooms, the underfloor height is kept low. In spaces where there are intersections, such as around water, the underfloor height is increased. Is done. However, if this is done, a step will be formed at the boundary of the water, and it will not be possible to meet the demand for barrier-free, and it will be inconvenient and accidents such as falling will easily occur. Further, the prior art has the following problems due to the relationship between the piping and the floor. That is, conventionally, the construction of the floor and the construction of the piping are premised on only one use, and after the housing is completed, the piping is first performed and then the floor is constructed. Therefore, after the dwelling unit is completed, when the housekeeper changes the floor plan, moves to make the sink face-to-face, or when replacing the old pipe, Substantial portions of the existing floor are destroyed, and after changing the piping, it is necessary to provide a new floor separately. These changes require a great deal of cost and labor. Therefore, it is very difficult for a householder to freely change the dwelling unit plan in accordance with changes in the family structure. From this point of view, it is difficult to renovate freely. The prior art also has the following problems from the standpoint of a collective housing provider. In other words, only the basic framework by the housing is prepared, and the plan in the dwelling unit is
It is desirable to be able to set it freely according to the wishes of customers (households). However, in the prior art, after piping,
In order to construct the floor, the arrangement of fixtures such as toilets, baths, sinks, sinks, and washing machines that should be connected to the piping is naturally constrained to a certain position. Also, to save piping length, these fixtures tend to be placed close to each other. Therefore, even if the customer wants to place a toilet (toilet) on the north side of the dwelling unit and a kitchen and a sink included in the kitchen on the opposite side, for example, in the prior art, such a plan It is very difficult to realize. After all, the current plan is that the plan determined by the provider's side is forced on the customer semi-forcefully. From this point of view, it is difficult to design freely. Next, other prior art will be mentioned. Now, although it is not in the field of multi-family housing, there is a technology that raises the floor by a certain underfloor height from the slab and builds mainly computer-related wiring within the underfloor height in the building named Intelligent Building. . In this device, a large number of legs standing upright from the slab are laid out in a lattice pattern, and the base panel is horizontally supported by these legs. This base panel is a plate that is thick and has a considerable strength, and usually has a long rectangular shape. By the way, this foundation panel corresponds to a joist or a forehead in a framework structure in terms of structural function, and has a role of supporting a member placed thereon. It is sufficient that the base panel can fulfill this role, and it is assumed that a decorative finish plate or carpet is stretched thereon, so the surface of the base panel is not finished. That is, on the base panel, a finishing plate or carpet that does not contribute to the structural strength but has a good appearance and feel is stretched. Thus, a floor that can withstand normal use is constructed only by stretching a finishing board or carpet. Here, the finishing board or carpet is often fixed to the underlying panel with an adhesive.
The finishing plate may be nailed to the base panel. In any case, the finishing plate or the carpet is fixed to the base panel, and after this fixing, it can be used as a floor. In addition, the base panel and the finishing plate or carpet (hereinafter referred to as “finishing plate etc.”) are usually not uniform in dimension system, and are arranged in an arbitrary manner. Now, on the floor constructed in this way,
At first glance, it seems that the layout of piping under the floor can be freely changed by removing the base panel. However, in practice, as described above, the finishing plate is fixed to the base panel, and the base panel and the finishing plate do not always correspond with a constant integer ratio. Always be sure to destroy the floor by peeling off the finishing board from the base panel. That is, any change in the layout of the piping always involves destruction of the floor. After all, even with this technique, the layout of the pipe cannot be changed without destroying the floor, and there is a problem similar to that of the above-described technique. In view of the circumstances as described above, an object of the present invention is to provide an underfloor facility construction method for an apartment house which has a small underfloor height and can freely change a dwelling unit plan. In the method of constructing an underfloor facility for an apartment house according to the present invention, support bases standing up against a slab are arranged in a lattice shape in plan view, and the support bases are rectangular. Floor surface
By placing the corners of the panel group in a removable manner,
Panels are horizontally arranged in tiles to form the floor, and the floor panel
Floor panel at least in the part involved in piping
To uncover the space under the floor.
The necessary support pipes under the floor
The floor panel is detachably mounted on the floor.
The surface of the flannel group is finished, round tube, flat tube and round tube
Use a joint or elbow to connect the flat tube
A drain pipe is installed almost horizontally between them.
The side is flat and semicircular, and the drains are vertically
At the point where
Use and pipe the other drain pipe above the deformed straight joint
However, the bottom of the deformed straight joint is
It is flat and the upper surface of the deformed straight joint is convexly curved downward
The width of the deformed straight joint is larger at the center than at both ends.
The deformed straight joint is a flow path through which drainage flows.
On both sides, was made form so as escape air passage through the
In the deformed direct joint with an air passage, the air passage and the flow path are
It is partitioned by a partition wall.
The deformed straight joint is formed from the outside to the inside of the deformed direct joint.
The channel is formed so as to be visible . In the method for constructing an underfloor facility for an apartment house according to the first aspect of the present invention, a group of support stands standing up against the slab is provided.
It is arranged in a grid pattern in plan view, and a rectangular floor panel is mounted on the support base group.
Floor panel by detachably mounting the corners
The floor is constructed by horizontally arranging groups in a tile shape, and floor panel groups
Of these, at least the floor panels that are involved in piping
Remove from the corresponding support base to expose the space under the floor,
Perform necessary piping under the floor and place it on the support stand at the removed location.
The floor panel is used to detachably mount the floor panel.
The surface of the group is finished, round tube and flat tube and round tube and flat
Use a fitting or elbow to connect the pipe to the space under the floor.
The drain pipe is installed approximately horizontally, and the cross-sectional shape of the flat pipe is
It has a flat arcuate shape or semicircular shape, and the drainage pipes intersect each other vertically.
Use a deformed straight joint on one drain pipe at the point where
And the other drain pipe above the deformed straight joint,
The bottom surface of the deformed straight joint is flat in the shaft section of the deformed straight joint.
And the upper surface of the deformed straight joint is convexly curved downward.
The width of the deformed straight joint is larger at the center than at both ends.
The deformed direct joint is connected to both channels of the drainage flow path.
Aside the ventilation path that allows the air in the flow path to escape
In the deformed straight joint, the air passage and the flow path are partition walls
The partition is divided into a plurality of pores.
The deformed straight joint is connected to the flow inside the deformed direct joint from the outside.
The road is formed so as to be visible . With this configuration, if the floor panel group is placed, the surface is finished by itself and a floor that can withstand normal use is constructed. Then, when changing the plan of the dwelling unit, remove the floor panel only for the necessary part /
Installation is sufficient, without destroying the floor, and once installation is complete, a floor that can withstand use can be reconstructed. For this reason, it is only necessary to install / remove the floor panel and change the piping of the minimum number of sheets, that is,
Plans can be changed freely at low cost and with low labor, without extensive construction work for floor reconstruction. Further, when a drain pipe is installed in the space under the floor, a flat pipe is used as at least a part of the drain pipe, and the round pipe and the flat pipe are connected by a joint or an elbow. Thereby, in the location using a flat tube, compared with using a round tube, the flow volume per height can be increased and the underfloor height can be made smaller, and the space efficiency in a dwelling unit can be improved so much. [0025] Also, it is allowed to flow efficiently drainage. Further, the central portion of the profiled straight joint, select the intersection point with other drain pipes, underfloor height can be suppressed even in the intersection. For this reason, it is possible to construct a barrier-free, safe and comfortable space by avoiding partial floor raising around the water. In addition, since the flow path of the deformed straight joint is made visible from the outside, it is possible to easily monitor clogging due to foreign substances, and to ensure a smooth flow. Such monitoring is not accompanied by destruction of the floor. It can be done easily at any time. Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of an apartment house according to an embodiment of the present invention. 1 is a pillar, 2 is an outer wall, and 3 is a balcony. Exterior wall 2
The three windows 4 are provided on the balcony 3 side, and the bay window 5 is provided on the opposite side. Here, it is necessary to provide equipment that satisfies a certain standard at a place where there is a risk of fire spread, and the window 4 and the exit window 5 are sash windows, but a shutter S is disposed outside the sash window. . Although not shown in the figure, this sash window is a single-drawer and is attached integrally with the rail of the shutter S. Next, the configuration in the dwelling unit (exclusive part) will be described. Although FIG. 1 illustrates a floor plan and the like, the present invention is not limited to such a floor plan.
In the dwelling unit, 6 is a Japanese-style room, 7 is a bathroom, 8 is a bedroom, 9 is a Western-style room, 10 is a living room, 11 is a dining room, and 12 is a kitchen. Further, the vertical pipe is disposed not in the exclusive part but in the shared part. As shown in FIG. 1, a Japanese-style room 6 with tatami flooring.
In addition, except for the bathroom 7 composed of a unit bath or the like, the rectangular floor panel P is arranged in a tile shape for the most part, and the floor is constituted by the floor panel P. And an important point is a point in which a floor is formed by these floor panel P before piping is constructed in the present invention. That is, as shown in FIG. 2, in this floor, a group of support bases standing up with respect to the slab is arranged in a lattice shape in plan view, and the corners of rectangular floor panel groups are arranged on the support base group. Are detachably mounted so that the floor panel P group is horizontally arranged in a tile shape. In FIG. 2, a four-support base A is arranged at the lower part of the intersection where the four floor panels P are in contact, and two sheets are supported at the lower edge of the floor where the two floor panels P are in contact. A table B is arranged, and a single support table C is arranged at the lower corner of the floor. Further, a central support D is disposed at the center lower portion of each floor panel P. Of these, the four-support base A, the two-support base B, and the one-support base C support the lower surface of each floor panel P to be placed, absorb the unevenness of the slab, and each floor panel The position of P is adjusted horizontally at a certain height, and the adjacent floor panels P are joined and positioned. Moreover, the center support stand D supports the floor panel P mounted horizontally. These 4 support bases A, 2 support bases B, 1
The sheet support C has a dowel hole 13 for positioning the floor panel P, and an adjuster hole 14 for horizontal adjustment. Further, the center support base D has an adjuster hole 14 to adjust the position horizontally, but does not have a dowel hole 13. And in this form, since the flooring is given to the surface (upper surface) of the floor panel P, a floor becomes an external appearance as shown in FIG. In the Japanese dimensional system, the length L of one side of the rectangle in FIG. 3 is preferably 90 cm, for example. Although the number and arrangement of the dowel holes 13 and the adjuster holes 14 in the four-support base A, the two-support base B, the one-support base C, and the central support base D are different, basically the same configuration is used. Therefore, hereinafter, the four-support base A will be described with reference to FIGS. 4 and 5. First, when the enclosure is completed, slab 15
Lay felt 16 on top. Then, as shown in FIG. 2, the four support bases A and the like are erected on the felt 16. A lower rubber layer 18 is attached to the lower part of the base 17 in the four-support base A. Lower rubber layer 18
Prevents sound leaking downstairs. A support plate 19 is provided above the base portion 17. The adjuster hole 14 is formed in the support plate 19, and a female screw 20 is coaxially mounted around the adjuster hole 14. The female screw 20 has screw shafts 21, 22, 23.
Are screwed together, and the screw shafts 21, 22, and 23 are erected so as to be rotatable upward from the base portion 17. That is, screw shaft 2
When the 1, 2, 23 and female screw 20 are relatively rotated, the horizontal posture of the support plate 19 with respect to the base portion 17 (slab 15) can be adjusted. By this rotation, the horizontal posture of the floor panel P placed on the four support bases A is adjusted (arrow N
refer. An upper rubber layer 24 is mounted on the upper surface of the support plate 19 so as to attenuate the vibration of the floor panel P. The upper rubber layer 24 and the support plate 19 are provided with the above-described dowel hole 13. Each floor panel P
A dowel hole 26 is also formed at a position corresponding to the dowel hole 13. As shown in FIG. 5 (particularly (b)), the dowel 25
Therefore, the dowel hole 13 does not penetrate the support plate 19, but the adjuster hole 14 is formed so as to penetrate the support plate 19 to allow the screw shaft 23 to advance and retreat. Then, as shown in FIG. 4, the floor panel P is detachably mounted on the four support bases A by driving the upper part of the dowel 25 into the dowel hole 26 and the lower part into the dowel hole 13. (See also wavy lines). By repeating this, the floor by the floor panel P is comprised. Next, the piping performed after the floor is constructed as described above will be described. In this embodiment, as shown in FIG. 1, a drainage pipe under the floor is piped. This drainage pipe is a flat pipe shown in FIG. “A bow or semicircle” is referred to as a “bow”. Since the arcuate flat tube 30 is used, the flow rate per height can be increased, drainage can be efficiently performed, and the underfloor height can be reduced even at the intersection. In order to connect the flat tubes 30 in series, a socket 31 shown in FIG. 6B (horizontal sectional view) and FIG. 6C (vertical sectional view) is used. In the bent portion, according to the curvature, FIG.
(B) Elbows 32 to 34 shown in (c) are used. In the branch portion, Y-shaped joints 35 to 3 shown in FIGS.
7 is used. Furthermore, in order to connect with another round tube 40, the straight joint 41 shown in FIG. 9A (horizontal sectional view) and FIG. 9B (vertical sectional view) is used to bend and connect. FIG. 10 (a) (horizontal sectional view) (b) (vertical sectional view)
A modified elbow 42 shown in FIG. By combining these parts,
For example, piping as shown in FIG. 1 can be performed. Moreover, in the example of FIG. 1, there is an intersection E where drainage pipes intersect vertically. In this intersection E, a deformed straight joint 43 shown in FIG. 11 is used. The deformed straight joint 43 includes socket portions 43a and 43b at both ends, and a main body 43c is provided between the socket portions 43a and 43b. Then, as shown in FIGS. 11 (c) and 11 (d), the cross section of the main body 43c has a central portion (width is larger than the flat tube 30) than both ends (width is equal to the flat tube 30). It changes continuously so that (large) becomes thin. As shown in FIG. 11 (a) or 11 (b), the deformed straight joint 43 is formed on the side of the flow path 46 through which drainage flows so as to allow air in the flow path 46 to escape.
It has. Here, the flow path 46 and the ventilation path 45 are partitioned by a partition wall 44,
Many pores (not shown) are opened, and the air in the flow path 46 can escape to the ventilation path 45. Thereby, even if the cross-sectional shape of the flow path 46 changes and the height of the flow path 46 becomes small, air circulation can be ensured and a smooth flow can be maintained, and the underfloor height can be suppressed. Then, as shown in FIG. 11 (d), the central portion of the main body 43 c is selected as an intersection point with another drain pipe 30. Then, as shown in the drawing, it is possible to sufficiently reduce the height H at which the piping is tightened. In this example, a water supply pipe 50, a hot water supply pipe 51, and a gas pipe 52 are arranged on the left and right sides of the flat pipe 30. In addition to this, various things such as a power line, a power line, a communication cable, and the like are conceivable as those that intersect. Furthermore, in this embodiment, the deformed straight joint 43 is made of a transparent resin so that the state in the flow path 46 can be visually monitored from the outside. Thereby, clogging due to foreign matters such as hair, hot water mud, oil and fat can be easily checked, and a smooth flow can be secured. Similarly, the elbows 32 to 34, the Y-shaped joints 35 to 37, the direct joint 41, the deformed elbow 42, and the like may be constructed of a transparent or translucent material. Moreover, since such monitoring does not involve destruction of the floor, the floor panel can be easily removed / attached, which is very convenient. Next, another embodiment of the present invention will be described with reference to FIGS. Here, the same reference numerals are given to the same components as those in the previous embodiment. In this embodiment, the flat tubes 30 do not interfere with each other as in the previous embodiment, but the flat tubes 30 are other types of tubes (water supply pipe 50, hot water supply pipe 51, gas pipe 52, etc. (hereinafter simply referred to as “water supply pipe 50”). Etc.)))). Here, FIG. 12 shows the upper layer side far from the slab, and FIG. 13 shows the lower layer side close to the slab. However, the present invention is not limited to such an arrangement, and includes a case where the flat tube 30 is arranged on the lower layer side, and a case where the vertical relationship between the flat tube 30 and the water supply pipe 50 is switched. In this example, the flat pipe 30 and the water supply pipe 5 are mainly in the corridor portion (below the floor panels P1 to P6).
Interference with 0 mag. Moreover, the flat tube 30 is extended toward the kitchen 12 side from the corridor.
It passes directly under the floor panels P6 to P9. Here, the flat tube 3 extending from the corridor to the kitchen 12
The case where 0 is exchanged will be described as an example. At this time,
Floor panels that need to be removed / installed are
Only a small part of the whole, that is, only the floor panels P1 to P6 and the floor panel P9 that involve the above-described flat tube 30 (portions with narrow pitch dots) may be used. Of these, when the floor panels P1 to P6 are removed, the part directly under the corridor is exposed, and the flat tube 30 can be replaced at this part. Also, for the part from the hallway to the kitchen 12, the floor panel P
6 and P9 are removed, and the floor panels P7 and P8 may remain attached. This part can be removed by inclining the flat tube 30 under the floor and pulling it out from the floor panel P9, for example. Of course, the floor panels P7 and P8 may be removed together. Incidentally, in the present invention, it is preferable to devise the following for the formation of the wall. That is, the flat tube 30
When a wall is formed in the vicinity of the water supply pipe 50 or the like, the wall is formed at a position out of the floor panel that needs to be removed when replacing these pipes in the floor panel P. For example, in FIG. 12, the walls are not positioned on the floor panels P1 to P6 and P9. In addition, even if a little ingenuity (position change for one wall at most) is devised in this way,
There is virtually no problem with the degree of freedom of design and renovation, and there is virtually no problem. The present invention is constructed as described above, so that the degree of freedom in design and reconstruction can be improved without breaking the floor.
Moreover, it is possible to obtain an apartment house with good space efficiency by suppressing the height under the floor.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of an apartment house according to an embodiment of the present invention. FIG. 2 is a plan view of the support base group. FIG. 3 is a plan view of the floor panel group. [Fig. 5] (a) Plan view of the support plate (b) Cross-sectional view of the support plate (c) Bottom view of the support plate [Fig. 6] (a) The flat plate Sectional view (b) Vertical sectional view of the socket (c) Horizontal sectional view of the socket [Fig.7] (a) Sectional view of the elbow (b) Sectional view of the elbow (c) Sectional view of the elbow 8) (a) Cross section of the same Y joint (b) Cross section of the Y joint (c) Cross section of the Y joint [FIG. 9] (a) Horizontal cross section of the straight joint (b) Vertical cross section of straight joint [Fig. 10] (a) Horizontal cross section of deformed elbow (b) Vertical cross section of deformed elbow [Fig. 11] (a) Vertical cross section of deformed straight joint (b) Variant Longitudinal section of straight joint (c) Horizontal sectional view of the deformed straight joint (d) Shaft sectional view of the deformed straight joint [FIG. 12] Drain pipe piping diagram in another embodiment of the present invention [FIG. 13] Piping diagram other than the drain pipe Description] 30 flat tube 43 deformed straight joint A 4 support base B 2 support base C 1 support base D central support base P floor panel

──────────────────────────────────────────────────── ─── Continued from front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E03C 1/00 E03C 1/12 E04F 15/024 603

Claims (1)

(57) [Claims] [Claim 1] A support base group standing upright with respect to the slab is arranged in a lattice shape in plan view, and a corner of a rectangular floor panel group is formed on the support base group. By detachably placing the floor panel group horizontally in a tile shape to form a floor, among the floor panel group, at least the floor panel panel that is involved in the piping from the corresponding support base Remove the floor space underneath, perform necessary piping under the floor, and place the floor panel detachably on the support base at the removed location. The surface of the floor panel group is finished. , substantially horizontally pipe the drain pipe under the floor of the space using the joint or elbow connecting a round tube and the flat tube and the round tube and the flat tubes, the cross-sectional shape of the flat tube, the upper is flat Bow or semicircle
In the place where the drain pipes cross each other up and down, one drain
Use a deformed direct joint for the pipe and above the deformed direct joint
Piping the other drain pipe, and in the shaft section of the deformed direct joint, the bottom of the deformed direct joint
The surface is flat and the upper surface of the deformed straight joint protrudes downward
Are curved, the width of the profiled straight joint, it increases the central portion than at both ends
The deformed direct coupling is a flow where drainage flows.
It is formed on both sides of the road so that the air in the flow path can escape.
In the deformed direct joint, the vent path and the flow path are:
It is partitioned by a partition wall.
The deformed straight joint is connected to the front of the deformed direct joint from the outside.
An underfloor facility construction method for an apartment house, characterized in that the passage is formed so as to be visible .