JPH09228613A - Form material for floating floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a form material, in which various kinds of form materials for a floating floor having different strength, hardness or height need not be set and cost of which can be reduced. SOLUTION: The support leg section 5 of a form material 1 for a floating floor is divided into a leg section 3 integrally formed to a form section 2 and a separate support section 4, and sound-insulating properties and load resistance can be set extremely minutely by connecting the support section 4 having different mechanical strength and hardness to the leg section 3 though the form section 2 and the leg section 3 are the same. The form section 2, the leg section 3 and the support section 4 can be shared even at the time of the floating floor having different height by interposing a height adjusting member 7 having different height between the leg section 3 and the support section 4. A slipping section having specified slip characteristics is mounted on the bottom section of the support section 4, and the form material can be applied to a vibration isolating floor. A projecting section 6 is projected from the top face of the form section 2 in the periphery of the support leg section 5, and the cover of a mesh 8 as a reinforcing material is ensured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating floor form material that constitutes a floor of a predetermined height on a foundation floor, and is designed to insulate the space between the foundation floor and the floating floor and to connect a space between the foundation floor and the floating floor. The present invention relates to a mold material that can be used for wiring.

[0002]

2. Description of the Related Art As a conventional floating floor form material and floating floor structure, Japanese Patent Application Laid-Open No. 4-85452 proposed by the present applicant has been proposed.
There is one described in Japanese Patent Publication. That is, a conventional floating floor form material has a form part which has a horizontal expanse and in which a concrete or other hardening material is placed, and is integrally and downwardly projected from the form part. And a supporting leg part that is hollow and has an inverted truncated cone shape that floats and supports the mold part on the foundation floor, and the other of the supporting leg parts is a supporting part that is in contact with the foundation floor among the supporting leg parts. A cushioning material separate from the part is fixedly provided. The bottom of the form part and the upper end of the inverted frustoconical support leg part are continuous with each other, and the inside of the form part and the inside of the support leg part are in communication with each other, and the curable material is filled in the inside. It is supposed to be done.

However, in this floating floor formwork, a cushioning material separate from the support leg is filled between the bottom of the support leg and the foundation floor, so that the floating floor formwork is laid. It is troublesome and time-consuming, and the cost increases accordingly. Therefore, the applicant of the present invention, the conventional form material,
It has been proposed that the foam frame synthetic resin having the same cushioning performance as that of the cushioning material, that is, the sound insulating property and the walking feeling is integrally formed from the mold portion to the supporting leg portion and the supporting portion. This floating floor form material is not only easy to manufacture, but also has an advantage of being excellent in transportation, laying, and construction because it is lightweight.

[0004]

By the way, in a floating floor constructed by using this floating floor formwork, for example, in a corner of a room of a general residence, that is, in the vicinity of the wall and its center, The load amount often differs. That is, a heavy object such as a chest of drawers or a piano is likely to be placed in the corner of the room of a general residence, while the central part of the room may have a load enough for a person to walk. In addition, it is generally in the center of the room that shocks and vibrations easily occur.
Here, since the floating floor is in contact with the foundation floor is only the support portion of the floating floor formwork, if considering the sound insulation from the center of the room to the downstairs, at least the It is desired that the supporting portion is soft in expectation of a damper effect. On the other hand, in a portion such as a corner of the room where the amount of load is always large, the supporting portion of the floating floor formwork is provided with sufficient mechanical strength, and substantially corresponding hardness is required. However, as described above, the conventional floating floor formwork material is integrally molded from the synthetic foam resin from the formwork part to the support legs, so that the center and corners of the room are When trying to change the hardness of the support part of the floating floor form material of
It is necessary to manufacture various types of form materials for floating floors, and it is not possible to meet the demand for cost reduction.

In addition, when the finished height of the floating floor is different for each room or section, such as a Japanese-style room, a Western-style room, and a bathroom, in an actual general residence, the formwork materials for floating floors having different heights are used. Therefore, it is not possible to reduce the cost because more types of form materials for floating floors are to be manufactured. In addition, above the floating floor form material, a reinforcing material such as a mesh for reinforcing the curable material such as the concrete, when pouring the curable material, from the upper surface of the form part It is necessary to maintain them at appropriate positions apart from each other, which is difficult with the conventional floating floor formwork material.

Further, when a floating floor in which a curable material is cast is constructed using only the conventional floating floor frame material, maintenance and layout of piping and wiring in a space below the floating floor frame material are constructed. When changing, the floor of the hardenable material such as concrete must be destroyed. The present invention has been developed in view of these various problems, and it is possible to reduce the number of types of formwork materials and reduce the cost, and at the same time, to maintain the reinforcing materials such as meshes at appropriate positions. It is an object of the present invention to provide a form material for a floating floor, which facilitates and can easily change the layout of piping and wiring in the space below the floating floor.

[0007]

In order to solve the above-mentioned problems, a mold material for a floating floor according to claim 1 of the present invention has a horizontal expanse and concrete and other curable material inside. In the formwork material for a floating floor, the support frame is provided with: a mold part to which is cast, and a support leg part projecting downward from the mold part to support the mold part by floating it on the foundation floor. The part is a leg part projecting downward from the mold part,
It is detachably divided into a support part connected to the leg part and installed on the foundation floor, and the mold part and the leg part are integrally molded with a foamed synthetic resin, and the support part is separately provided with these. It is characterized by being molded with a foamed synthetic resin.

The floating floor frame material according to a second aspect of the present invention is interposed between the leg portion and the support portion, and is separately molded from the foamed synthetic resin and has a predetermined shape. It is characterized in that a height adjusting member having a height is provided. In addition, in the floating floor form material according to claim 3 of the present invention, a protrusion having a predetermined height is provided on the upper surface side of the form part on the periphery of the support leg or a part of the periphery. Is formed.

The floating floor frame material according to a fourth aspect of the present invention is characterized in that a sliding portion having a predetermined sliding characteristic is provided on the bottom surface of the supporting portion with the foundation floor. To do. The floating floor formwork material according to claim 5 of the present invention is a floating floor formwork material adjacent to the formwork portion of any one of the floating floor formwork materials, wherein the vertical part and the horizontal part are horizontal. A T-shaped cross section having a vertical section and a vertical section having a predetermined height such that the upper surface of the horizontal section is equivalent to the upper surface of the floating floor made of the curable material when the vertical section is installed on the foundation floor. A space having a predetermined height is formed below the horizontal portions on both sides of the vertical portion.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION In the floating floor formwork material according to claim 1 of the present invention, the support leg portion integrally formed with the formwork portion as described above is once divided. To do. However,
The leg part projecting downward from the mold part is integrally molded with the mold part by foamed synthetic resin, and the support part connected to the leg part and installed on the foundation floor is foamed separately from these. Mold with synthetic resin. Therefore, the mechanical strength of the supporting portion can be improved by using various foam synthetic resins, or by changing the foaming ratio of the same foam synthetic resin.
More specifically, the hardness can be variously set. Here, if only the connecting structure of the supporting part to the leg part is set in advance to a predetermined detachable structure, the supporting parts having various mechanical strengths and hardnesses of the same mold part can be formed. Can be connected to legs, and as a result, even if the form part to legs are the same, obtain floating frame form materials with various mechanical strengths installed on the foundation floor. You can Therefore, the mold portion and the leg portion may be integrally molded using a constant foaming synthetic resin at a constant foaming rate so as to satisfy both the expected maximum value of the required mechanical strength and the walking feeling. Therefore, for example, a floating floor formwork connected to a relatively hard supporting part is a floating floor connected to a relatively soft supporting part by arranging it in the corner of the room of the general house to obtain load bearing capacity. If the formwork material is placed in the center of the room of a general house to achieve both impact resistance, sound insulation and walking sensation, the formwork part can be used in common while exhibiting the necessary functions. Therefore, the cost can be reduced.

Further, in the floating floor frame material according to a second aspect of the present invention, the height adjusting member which is formed of foamed resin separately from the leg portion and the supporting portion and has a predetermined height, It is interposed between the leg and the support. Therefore, if only the connecting structure between the height adjusting member and the leg portion or the supporting portion is set in advance to a predetermined detachable structure and height adjusting members of various heights are prepared, it is equivalent. It is possible to set various heights of the floating floor frame material by interposing height adjusting members having different heights while using the frame portion, the leg portion, and the support portion. Of course, it is possible to adjust the height of the floating floor formwork material with or without this height adjustment member, and to set the mechanical strength and hardness of the height adjustment member in various ways. Since it is also possible to reduce the type of mechanical strength and hardness of the support part as described above, as a result, the type and yield of the form frame part, legs and support part are reduced. Therefore, the cost can be reduced.

According to a third aspect of the present invention, in the floating floor frame material, a predetermined part formed around the support leg portion or a part of the periphery of the upper surface side of the frame portion. By placing a mesh or the like to be a reinforcing material of concrete or other curable material as described above on the protruding portion of the height, and by driving the curable material in that state, the reinforcing material can be placed at an appropriate position. Can continue to be maintained. Further, after the reinforcement material such as the mesh is laid, the load applied to the reinforcement material, for example, the weight of the worker can be received by the support leg portion. Of course, as described above, the support leg portion itself has a sufficient load resistance. Since it has the property, it is possible to minimize the damage of the mold frame and the like.

In the floating floor frame material according to claim 4 of the present invention, a sliding portion such as Teflon provided on the bottom surface of the supporting portion is provided for lateral input to the foundation floor due to an earthquake or the like. As a result, the floating floor itself can slide independently of the shaking of the building, and it is possible to deal with a partially seismically isolated floor. In addition, claim 5 of the present invention
In the floating floor form material according to the present invention, it has a T-shaped cross section having a vertical portion and a horizontal portion, and when the vertical portion is installed on a foundation floor, the upper surface of the horizontal portion is equivalent to the upper surface of the floating floor made of the curable material. The formwork material for a floating floor, which has a predetermined height that is equal to the height of the vertical section and in which a space of a predetermined height is formed below the horizontal portions on both sides of the vertical portion, for example, the floating floor as described above. By arranging the wirings and pipes below the floating floor by arranging them adjacent to the mold portion of the molding frame material, these wirings are laid out in the space on both sides of the vertical portion below the T-shaped horizontal portion. When maintaining or changing the layout of pipes or pipes, the T-shaped floating floor frame material can be removed by removing it upward, so that it does not destroy the hardenable material such as concrete as in the past. It is also possible to shorten the construction period and reduce the cost by that amount. Kill.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a floating floor formwork material according to the present invention will be described in detail with reference to the drawings. First, FIG. 1 shows a plan view of a floating floor formwork material of this embodiment. Further, FIG. 2a shows the details of part A of FIG. 1, and FIG.
-B shows a cross section. This floating floor form material shows a state before the supporting portion and the height adjusting member described later are connected,
Substantially, it becomes possible to use as a formwork material for a floating floor only after connecting the supporting portion and the height adjusting member to a leg portion described later, but here, it has a spread in the horizontal direction and Form part 2 in which concrete or other curable material is placed, and leg parts 3 protruding downward from this form part 2.
Are molded integrally with a foamed synthetic resin such as foamed polypropylene resin.
shall be referred to as a. Of these, the mold part 2 is made up of a generally horizontal flat plate, and in this embodiment, it is formed in a square shape having a side of about 600 mm in the plane. A total of nine downwardly-conical frustoconical leg portions 3 are integrally formed at predetermined intervals of the square mold portion 2, and the leg portion 3 is formed in the mold portion 2. There is a hole at the top, and the upper surface of the mold part 2 communicates with the inside of the leg part 3. Explaining this leg part 3 in more detail, the leg part 3 is a rotating body around a vertical axis of an upwardly convex ¼ arc, and therefore the leg part 3 communicating with the upper surface of the mold part 2 is described. Inside is gentle R
To be a face. In addition, the leg portion 3 that communicates with the lower surface of the mold portion 2
The outer surface is an R surface parallel to the inner surface, the lower end surface of the leg portion 3 is formed horizontally, and the lower end portions of the inner surface and the outer surface of the leg portion 3 are opened vertically or substantially vertically. By the way, the height from the lower end surface of the leg portion 3 of the floating floor half frame material 1a to the lower surface of the mold portion 2, that is, the substantial height of the leg portion 3 is about 30 mm. The height from the lower end surface to the upper surface of the mold part 2 is about 40 mm. The inner diameter of the lower end of the inner surface of the leg portion 3 is about 80 mm, and the outer diameter of the lower end of the outer surface thereof is about 100 mm.

Further, on the upper surface of the mold frame portion 2, a projection 6 having a rectangular shape in plan view is formed on the periphery of the leg portion 3, more specifically, at each central portion of the four sides of the square surrounding the leg portion 3. It is integrally formed with the frame portion 2 and protrudes upward (hatched portion in FIGS. 1 and 2a). The height of the projection 6 is constant at about 5 mm, a floating floor formwork constructed as described later is laid on the foundation floor, and a hardenable material such as concrete is provided inside the formwork unit 2. For embedding a mesh used as a reinforcing material for the curable material in the interior of the curable material when placing the, in order to keep it away from the upper surface of the mold part 2 by a predetermined height. Is.

The foaming rate of the foaming synthetic resin, which is related to the mechanical strength of the legs 3 and the protrusions 6 integrally molded with the mold frame 2, is constant, and in this embodiment, it is set to about 15 times. There is. However, the foaming rate is not limited to this, and the weight of concrete or other curable material cast inside the mold part 2 and the load applied to the floating floor constructed by casting the same. The amount should be set appropriately so that the mechanical strength, such as the compressive strength and the shear strength, will not be damaged even when the maximum load is applied, even if the maximum load is applied. . Further, it is desirable that the foamed form of the foamed synthetic resin is in a so-called closed cell state in which so-called bubbles are not continuous. Further, the disposition position of the leg portion 3 with respect to the form frame portion 2 may be other than that shown in the drawing, but in the present embodiment, when the floating floor form material is laid so that the form frame portions 2 are adjacent to each other. The adjacent leg portions 3 are always arranged at equal intervals.

Next, the leg portion 3 of the floating floor half frame material 1a.
The support portion 4 connected to the above and placed on the foundation floor will be described with reference to FIG. As is clear from the figure, the support portion 4 is formed into a flat solid cylindrical shape,
On the upper end surface thereof, a convex portion 4a which is also cylindrical and coaxial with the cylinder of the support portion 4 is formed. Among these, the outer diameter of the convex portion 4a protrudingly provided on the upper end surface of the support portion 4 is an outer diameter that is tightly fitted to the lower end portion of the inner surface of the leg portion 3, that is, about 80 mm.
The outer diameter of the support portion 4 is equal to the outer diameter of the lower end portion of the outer surface of the leg portion 3, that is, about 100 mm. In addition, in this embodiment, the height of the supporting portion 4 is about 20 mm, and the height of the convex portion 4a is about 10 mm. In addition, this support portion 4
Also, similar to the floating floor half frame material 1a, is integrally formed of a foamed synthetic resin such as a foamed polypropylene resin,
The foaming rate is set variously. For example, if the foaming rate is about 30 times, the mechanical strength as a whole, especially the compressive strength is low but it is soft, or if the foaming rate is about 15 times, the total machine strength is set. It has high mechanical strength but is hard. However, in any of the supporting portions 4, the shapes of the convex portion 4a and the vicinity thereof are the same as or substantially the same as those described above. Further, in any case, the foaming form of the support portion 4 is
The so-called closed cell state is desirable.

Then, as shown in FIG. 4, the convex portion 4a of the supporting portion 4 is fitted into the lower end portion of the inner surface of each leg portion 3 of the floating floor half frame material 1a, so that the floating floor mold as a whole. The frame material 1 is configured. At this time, both the leg portion 3 and the support portion 4 are made of foamed synthetic resin, and the convex portion 4a of the support portion 4 has an outer diameter that fits tightly into the lower end portion of the inner surface of the leg portion 3. If they are fitted together, a stable compressive stress acts between them, so they cannot be easily removed even after the fitting. Further, if the foaming state of both is a closed cell state, it is easy to maintain the deformation associated with the fitting in the elastic deformation region. Therefore, for example, after pulling out the support part 4 from the leg part 3, both are elastically restored and again It is also possible to fit and use each other. In this way, the basic support legs 5 of the floating floor frame material 1 of the present embodiment are configured with the support portions 4 fitted in the leg portions 3. Further, as a result, the protrusion 6 provided to support the reinforcing member is
Of the upper surface of the support leg portion 5, the support leg portion 5 is projected around the support leg portion 5 or a part thereof.

As described above, the floating floor frame material 1 of this embodiment
Is configured by connecting individual supporting portions 4 to the leg portions 3 of the floating floor half frame material 1a, and a height adjusting member 7 is provided between the leg portions 3 and the supporting portions 4. A separate spacer may be interposed. FIG. 5 shows an example of the height adjusting member 7. The height adjusting member 7 is the half-frame material 1a for the floating floor.
Using a foamed synthetic resin equivalent to
Although a is formed in a cylindrical shape having an inner diameter in which the a is tightly fitted and an outer diameter of the support portion 4, the upper end portion of the outer diameter is slightly bulged in the radial direction, and inside the bulged portion, A concave portion 7a having an inner diameter into which the lower end portion of the outer surface of the leg portion 3 is tightly fitted is formed. The foaming ratio of the foamed synthetic resin of the height adjusting member 7 may be basically the same as or substantially the same as that of the floor half mold material 1a, but from the lower end surface thereof to the concave portion 7a.
Various heights H are set to the bottom surface. Further, as will be described later, when the floating floor formwork material 1 is configured using the height adjusting member 7, the foaming rate is changed according to the assumed load amount, and the mechanical strength, In particular, the compression strength may be changed and set.

Then, a case where the height adjusting member 7 is used to form the floating floor formwork 1 will be described with reference to FIG. That is, the legs 3 of the floating floor half frame material 1a
The height adjusting member 7 is covered on the protruding lower end portion of the leg portion 3 while rubbing them so that the lower end portion of the outer surface of the lower portion fits tightly into the inner diameter of the recessed portion 7a of the height adjusting member 7, and the height adjustment is further performed. The support portion 4 is connected to the lower end portion of the height adjusting member 7 while the convex portion 4a of the support portion 4 is tightly fitted in the lower end portion of the inner diameter of the member 7. At this time, similarly to the above, stable compressive stress is generated between the leg portion 3 and the height adjusting member 7 and between the height adjusting member 7 and the supporting portion 4, so that they are easily separated. Without forming the support leg portion 5 integrally.
When the floating floor formwork 1 is constructed in this manner, the height H is set to at least one floating floor half formwork 1a.
The same height adjusting member 7 is used to form the floating floor formwork material 1 having the same height from the bottom surface of the support portion 4 to the top surface of the formwork portion 2. Then, after laying the floating floor form material 1 in the desired room or the whole area, on the projection 6 projecting on the upper surface of the floating floor form material 1, hardening of concrete or the like described later is performed. A mesh 8 serving as a reinforcing material for a conductive material is placed, and a curable material 9 such as concrete is placed from above.

Therefore, the hardenable material 9 such as concrete is passed from the upper surface of the mold part 2 of the floating floor formwork 1 through the inside of the leg part 3 and the height adjusting member 7 to the supporting part 4. Since it flows into the upper surface of and hardens, the floating floor made of the curable material 9 can secure sufficient mechanical strength with respect to the base floor 10. Further, as described above, since the mesh 8 serving as the reinforcing material is cast on the curable material such as concrete while being placed on the upper side of the protrusion 6, the mesh 8 has a sufficient depth, that is, fogging. Not only can be buried in the curable material 9 to improve the strength of the floating floor made of the curable material 9, but also the above-mentioned floating floor form material can be provided in the required room or compartment as described above. When the mesh 8 is placed or the curable material 9 such as concrete is laid after laying 1, the load is applied from the protrusion 6 to the support leg 5 even if an operator rides on the mesh 8. More specifically, since it can be received by the foundation floor 10 via the support portion 4, it is possible to reduce an unnecessary local load applied to the formwork portion 2, that is, the weight of an operator and prevent the damage thereof.

As mentioned above, a Japanese-style room in a general residence
・ Each room or compartment, such as a Western-style room or a bathroom, has a basic floor
10, the requirement from the top of the slab to the top of the floating floor
Height H₁May be different. However, curable material
For the mechanical strength of the floating floor formwork 1 with respect to the weight of the material 9
Since there is a limit, the thickness of the curable material 9 that can be placed is also limited.
There is a boundary, so this floating floor height H₁Height fluctuations
There is nothing but absorption at the height of the floor form material 1. like this
In this case, the floating floor half frame material 1a and the supporting portion 4 are commonly used.
Even if the height adjustment member 7 has a different height H,
Floating floor height H ₁It is sufficient to cope with the fluctuation of. That is, floating
Floor height H₁Height adjustment member with a high height H when the height is high
7 is interposed between the leg portion 3 and the support portion 4, and the floating floor height is
H₁If the height is low, use the height adjusting member 7 having a low height H.
The height of the floating floor formwork 1 may be adjusted. Of course
When using the lowest height adjusting member 7 of the intended height H
But the floating floor height H₁Is too high,
As shown in FIG. 4, the height adjusting member 7 is not directly attached to the leg portion 3.
A floating floor formwork that can be used with the contact support 4 connected
1 height adjustment function.

By thus sharing the floating floor half mold material 1a, that is, the mold part 2, the leg part 3 and the support part 4, the manufacturing cost can be reduced and on-site. Even if the floating floor half frame material 1a, the support portion 4, and the height adjusting members 7 having different heights are combined to form the floating floor frame material 1, it does not take much effort. Further, at that time, for example, even if the standard of the height H of the height adjusting member 7 prepared does not match the required height of the floating floor formwork material 1, the height adjusting member is required. 7
However, since it is made of the same foam synthetic resin as that of the floating floor half frame material 1a, it is possible to adjust the height by, for example, grinding the lower end of the height adjusting member 7 with a grinder or cutting it off with a knife. It's easy, and even if it had to be done on-site, it wouldn't take much work. Further, even in such a case, the mechanical strength of the support portion 4 does not change, so that the mechanical strength of the floating floor form material 1 as a whole is maintained. Further, the height required for the floating floor formwork 1 is high in advance, so that the height adjusting member 7 having a high height H must be used, but at the same time, the load amount applied to that portion is extremely large. When it is known, not only the support portion 4 having high mechanical strength is used, but also the height adjusting member 7 is used.
It is also possible to provide a high mechanical strength to increase the load bearing capacity of the floating floor at the site.

Next, an example of the method of using the floating floor frame material 1 configured as described above will be described with reference to FIG. As mentioned above, heavy items such as chests and pianos are often placed in the corners (including so-called walls) of the rooms of ordinary houses, and conversely, the central part of the room has a load enough for a person to walk. Sometimes it only costs. However, it is in the central part of the room that the vibrations and noises are apt to occur due to the falling of articles and the noise of walking by people. Therefore, if the entire room is composed of floating floors, the corners of the room will not be load-bearing even if the sound insulation and walking feeling (the feeling of the soles of the feet when people walk) are sacrificed. It should be set high and the center of the room should have a floating floor to enhance sound insulation and walking, even though the load bearing capacity is not very high. Therefore, in the type A floating floor frame material 1 shown in FIG. 7a, among the nine leg portions 3, the leg portions 3 corresponding to the four corners and the leg portion 3 located at the center are relatively soft. The supporting portion 4 is connected (shown by a white circle in the same figure), and the supporting portion 4 which is relatively hard and has high mechanical strength is connected to the remaining leg portions 3 (shown by a black circle in the same figure). On the other hand, in the B type floating floor frame material 1 shown in FIG. 7b, conversely to the A type floating floor frame material 1, the leg portions 3 corresponding to the four corners and the central leg portion 3 are provided. The supporting portion 4 which is relatively hard and has high mechanical strength
Are connected (indicated by black circles in the figure), and the relatively soft support portions 4 are connected to the remaining legs 3 (indicated by white circles in the figure).
Further, in the C type floating floor frame material 1 shown in FIG. 7C, the relatively soft support portion 4 is connected to all the nine leg portions 3. Then, the C-type floating floor frame material 1 is laid in the center of each room constituting the floating floor, and the periphery of the frame material 1, that is, the corner of the room including the wall, is for the A-type floating floor. Formwork 1 and B type floating floor formwork 1 are laid alternately. As a result, in the floating floor frame material 1 in the center of each room, all the legs 3 are supported by the foundation floor 10 via the relatively soft supporting portions 4, including the wall side. In the floating floor frame material 1 at the corners, the adjacent leg portions 3 are alternately supported by the foundation floor 10 via the support portions 4 which are relatively hard and have high mechanical strength. Therefore, when a curable material 9 such as concrete is cast into the inside of the floating floor to form a floating floor, the floating floor in the center of the room is supported by the relatively soft supporting portion 4, so that, for example, a lower floor is installed. Since the sound insulation is enhanced and the floating floor in the corner of the room is supported by the support portion 4 having relatively high strength, the load bearing capacity against heavy objects can be improved. Thus, if the floating floor formwork 1 is constructed by using the supporting portions 4 of various hardness of this embodiment in appropriate places, the sound insulation and load resistance required in each part of each room can be finely adjusted. Can be set.

Next, the layout of the piping and wiring under the floating floor as described above will be described with reference to FIG. This is particularly the case where the CD pipe 11 for bundling and protecting the wiring is piped below the floating floor formwork 1 and the curable member 9 without the height adjusting member 7, and more specifically. A CD pipe 11 is piped in a space below the formwork 2 supported at a predetermined height from a foundation floor 10 by a support leg 5 composed of the leg 3 and a support 4. When the CD pipe 11 and the internal wiring are raised on the floating floor to install the floor outlet, if the CD pipe 11 and the wiring are raised so as to directly pass through the mold part 2 as in the conventional case, Since the curable material 9 in the floor outlet accommodating portion for installing the floor outlet is removed, and when the thickness of the curable material 9 is thin, the mold portion 2 is also removed.
Foundation floor 1 where sound and vibration above the floating floor are slabs
There is a problem in that the sound insulation is deteriorated by directly propagating to 0. In view of this, in the present embodiment, the CD tube 11 is once taken into the inside of the support leg portion 5 and is raised from there to form a floor outlet storage portion 11b in which a floor outlet is installed above the support leg portion 5. I did it. By doing so, the curable material 9 flowing into the inside of the support leg 5 is provided below the floor outlet storage 11b.
Since the sound insulation layer remains, the sound and vibration on the floating floor are shielded by this sound insulation layer, and further propagate to the foundation floor 10 through the supporting portion 4 therebelow, so that further sound insulation can be ensured. it can.

Next, a second embodiment in which a floating floor is provided with a seismic isolation function will be described with reference to FIG. This embodiment shows a floating floor structure which is adjacent to the wall member 13 via an expansion member 14, and the basic configuration except for the supporting portion 4 is the height adjusting member 7 interposed therebetween. It can be considered to be almost the same as that of FIG. In this embodiment, a sliding member such as Teflon is attached to the bottom surface of the supporting portion 4 to provide the sliding portion 12. Since the sliding portion 12 has a predetermined sliding characteristic with respect to the foundation floor 10, the floating floor itself can slide independently from the shaking of the building in response to a lateral input to the foundation floor 10 due to, for example, an earthquake. Therefore, conventionally, the shear stress caused by the delay between the lateral input from the wall and the lateral input from the foundation floor did not act on the floating floor, and a floating floor with a partial seismic isolation structure could be constructed. . The sliding portion 12 may have any structure as long as it has a predetermined sliding property with the foundation floor 10 other than the application of Teflon. Further, particularly for a floating floor that does not require such sliding characteristics, the sliding portion 12 as described above may not be provided at the bottom of the support portion 4.

Next, the third embodiment for laying out wiring and piping under the floating floor as described above will be described with reference to FIGS.
The description will be made using 1. Basic floating floor wiring,
For the piping layout, a space below the form part 2 of the floating floor form material 1 is used as shown in FIG. However, when it is necessary to change the layout of such piping or wiring, or when maintenance of the piping or wiring is performed, the hardened layer of the hardenable material 9 such as concrete must be destroyed once. Therefore, the construction period becomes longer and the cost becomes higher at the same time. Therefore, when a layout change of piping or wiring is expected or a place requiring maintenance thereof, a floating floor is constructed using the following floating floor formwork material. That is, this floating floor frame material 15 has a T-shaped cross section composed of a vertical portion 15a and a horizontal portion 15b, and has the above-mentioned floating floor shoulder frame material 1
Unlike the above, when the lower end portion of the vertical portion 15a is installed on the foundation floor 10, the upper surface of the horizontal portion 15b is at the same or almost the same height as the casting and hardening upper surface of the hardening material 9 such as concrete. Is set to. Further, when the vertical portion 15a of the floating floor formwork 15 is installed on the foundation floor 10, the pipe 16 and the wiring 17 are housed on both sides of the vertical portion 15a below the horizontal portion 15b. A space having a sufficient predetermined height is formed. FIG.
Collar portions 15c for ensuring the connection with the floating floor formwork material 1 are provided at both ends of the horizontal portion 15b of the floating floor formwork material 15 shown in FIG. ing.

The floating floor formwork material 15 is used by inserting it into the space of the floating floor formed by the floating floor formwork material 1 shown in FIG. Then, the pipe 1 is laid out in a space between the vertical portion 15a and the horizontal portion 15b of the floating floor frame material 15 so as to be separable from each floating floor itself.
The layout of the wiring 6 and the wiring 17 can be changed and maintenance can be performed by removing the floating floor frame material 15. As described above, it is not necessary to destroy the hardened layer of the curable material 9, and the construction period can be shortened. The cost can be reduced.

Next, the floor impact sound level of the floating floor constructed as described above will be explained. To measure the floor impact sound level, as shown in FIG. 12, a precision noise level meter 24 is installed in a sound-receiving room 23, which is formed of reinforced concrete on the upper, lower, front, rear, left, and right sides of a reinforced concrete like a room in an apartment house. In addition, the ceiling plate is used as the basic floor 10. This foundation floor 1
Each floating floor as described above is constructed on 0, and a shock is applied to each floor by a tapping machine 25 as a lightweight impact source and a bang machine 26 as a heavy impact source, and the octave band is applied by the precision noise meter 24. 13 to 15 show the results of measuring the relationship between the center frequency (Hz) and the average floor impact sound level (dB).

First, FIG. 13 shows the correlation between the octave band center frequency and the average floor impact sound level due to the light weight impact source. In the figure, the curve connecting the circles is the foundation floor only, and the curve connecting the triangles is concrete or the like. Only the floating floor substrate on which the curable material was cast is used, and the curve connecting the □ marks is obtained by further laying a shock absorbing material such as carpet on this floating floor substrate and finishing it. As is clear from the figure, generally, the frequency band of noise and vibration generated similarly to such a light-weight impact source is relatively high frequency, and in particular, the impact sound level in such a high frequency band is set to the floating floor of this embodiment. It can be seen that is effectively reduced.

FIG. 14 shows the correlation between the octave band center frequency and the average floor impact sound level due to the heavy impact source, and the curve connecting the circles in the figure shows the floating floor of this embodiment with the finish as described above. The curve connecting the triangles is a conventional floating floor that has been finished. As is clear from the figure, even in the frequency band of noise and vibration near the relatively low frequency that generally occurs similar to such a heavy impact source, the floating floor of the present embodiment does not sufficiently lower the impact sound level. You can see it.

FIG. 15 shows the correlation between the octave band center frequency and the average floor impact sound level due to the lightweight impact source, and the curve connecting the circles in the figure shows the floating floor of this embodiment with the finish as described above. The curve connecting the triangles is a conventional floating floor that has been finished. As is clear from the figure, in the frequency band of noise and vibration near the relatively high frequency that generally occurs similar to such a light-weight impact source, the floating floor of the present embodiment shows a particular reduction in impact sound level. be able to.

[0033]

As described above, according to the floating floor formwork material of the present invention, the formwork part and the leg part are integrally molded of foamed synthetic resin, and the support part divided from this leg part. By setting various mechanical strength and hardness of the, the rigid support with high mechanical strength is connected to the legs of the floating floor where load resistance is required, and sound insulation and walking feeling are required. By connecting a soft support to the legs of the floating floor, the formwork can be made to achieve both the shock resistance, sound insulation and walking feeling required for each part of the floating floor. The cost can be reduced by exhibiting necessary functions while sharing the parts.

If height adjusting members set to various heights are interposed between the leg portions and the supporting portions, the heights can be increased while using the same mold parts, leg portions and supporting portions. The height of the floating floor form material can be set variously by interposing height adjusting members of different heights, and as a result, the types and yields of the form parts, legs and supporting parts can be reduced. The cost can be reduced.

On the upper surface side of the mold part, a projection of a predetermined height formed on the periphery of the support leg or a part of the periphery is provided with a reinforcing material of concrete or other curable material. It is possible to continue to maintain the reinforcing material in an appropriate position by placing a mesh or the like and placing the curable material in that state, and as a result, it is possible to properly obtain the covering of the reinforcing material. it can. Further, after the reinforcement material such as the mesh is laid, the load applied to the reinforcement material, for example, the weight of the worker can be received by the support leg portion. Of course, as described above, the support leg portion itself has a sufficient load resistance. Since it has the property, it is possible to minimize the damage of the mold frame and the like.

Further, since the sliding portion such as Teflon provided on the bottom surface of the supporting portion exhibits a predetermined sliding characteristic against a lateral input to the foundation floor due to an earthquake or the like, the floating floor itself shakes the building. It becomes possible to slide independently from the above, and it is possible to deal with a partially seismically isolated floor. Further, a T-shaped formwork for floating floors is fitted into a space of a floating floor made of a hardening material such as concrete, and is inserted into a space below horizontal parts on both sides of a vertical part of the formwork for floating floors. If wiring and piping are laid out, the T
It is only necessary to remove the frame material for floating floors, and it is not necessary to destroy the hardening material such as concrete as in the conventional case, and the construction period can be shortened and the cost can be reduced accordingly.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of a floating floor formwork material of the present invention.

2A and 2B are detailed explanatory views of a mold part and legs of the floating floor mold member of FIG. 1, where FIG. 2A is a detailed view of part A of FIG. 1 and FIG. It is bb sectional drawing of a).

3A and 3B are detailed explanatory diagrams of a support portion connected to the leg portion of the floating floor frame member in FIG. 1, FIG. 3A is a front view, and FIG. 3B is a plan view.

FIG. 4 is a vertical cross-sectional explanatory view of a floating floor formwork material formed by connecting the supporting portions of FIG. 3 to the legs of the floating floor formwork material of FIG. 2;

5 is a vertical cross-sectional explanatory view of a height adjusting member interposed between a leg portion and a support portion of the floating floor frame member of FIG.

6 is a vertical cross-sectional explanatory view of a floating floor constructed by interposing the height adjusting member of FIG. 5 between the leg portion and the support portion of the floating floor form material of FIG.

7 is an explanatory view of laying the formwork material for a floating floor of FIG. 4 using the support portions of FIG. 3 having different mechanical strength and hardness.

FIG. 8 is an explanatory diagram of the start-up of a CD pipe for constructing a floor outlet from the floating floor constructed as shown in FIG.

FIG. 9 is a longitudinal cross-sectional explanatory view of a floating floor showing a second embodiment of the floating floor formwork material of the present invention.

FIG. 10 is an explanatory view showing a third embodiment of the floating floor formwork material of the present invention.

11 is a vertical cross-sectional explanatory view of a floating floor using the floating-bed form material of FIG.

FIG. 12 is an explanatory diagram of measurement of a floor impact sound level.

FIG. 13 is an explanatory diagram of a floor impact sound level of a floating floor by the floating floor formwork material of the present embodiment for a lightweight impact source.

FIG. 14 is an explanatory diagram of the floor impact sound level of the floating floor by the floating floor formwork material of the present example and the conventional floating floor formwork material with respect to the heavy impact source.

FIG. 15 is an explanatory diagram of a floor impact sound level of a floating floor by the floating floor formwork material of the present example and a conventional floating floor formwork material with respect to a lightweight impact source.

[Explanation of symbols]

 1 is a floating floor form material 2 is a form part 3 is a leg part 4 is a support part 5 is a support leg part 6 is a protruding part 7 is a height adjusting member 8 is a mesh (reinforcing material) 9 is a curable material 10 is Foundation floor 11 CD pipe 12 Sliding part 15 Floating floor form material 16 Piping 17 Wiring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yuuji Sato, 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo Within Taisei Corporation (72) Haruo Sasaki 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo No. Taisei Construction Co., Ltd.

Claims (5)

[Claims] 1. A formwork part having a horizontal expanse and in which concrete or other hardening material is placed, and a formwork part projecting downward from the formwork part on the foundation floor. In a floating floor form material having a supporting leg that floats and supports, the supporting leg is a leg projecting downward from the form, and is connected to the leg and is installed on a foundation floor. And a supporting portion that is detachably divided, the mold portion and the leg portion are integrally molded with a foamed synthetic resin, and the support portion is separately molded with a foamed synthetic resin. Form material for floating floors. 2. A height adjusting member which is interposed between the leg portion and the support portion and which is separately molded from the foam synthetic resin and has a predetermined height. The floating floor formwork material according to Item 1. 3. The projecting portion having a predetermined height is formed on the upper surface side of the mold frame portion or around the supporting leg portion or a part of the periphery thereof. Formwork material for floating floors described. 4. The floating floor formwork according to claim 1, wherein a sliding portion having a predetermined sliding characteristic is provided on the bottom surface of the supporting portion with respect to the foundation floor. Material. 5. A floating floor formwork material adjacent to the formwork portion of the floating floor formwork material according to any one of claims 1 to 4, having a T-shaped cross section having a vertical portion and a horizontal portion. And when the vertical portion is installed on the foundation floor, the horizontal portion upper surface has a predetermined height that is the same height as the floating floor upper surface made of the curable material, and the horizontal portion on both sides of the vertical portion A formwork material for a floating floor, characterized in that a space having a predetermined height is formed below.