JP2000096807A - Floor bed structure for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor bed structure simple and easy to construct and free of creaking without need for backer plywood. SOLUTION: A floor bed structure includes joist units 1 having vertically adjustable supporting legs suspended from the lower face of a square timber with joint portions at both ends and steady brace materials 8 having a plurality of recessed joist cap portions 9 equally spaced from each other so as to fit the square timber perpendicularly thereto along the longitudinal direction. The plurality of joist units 1 are joined to each other to form straight joist connections 1m which are arranged at preset spaces in parallel to the upper face of a concrete floor F, and the plurality of steady brace materials 8 are laid thereabove perpendicularly to the joist connections 1m and the joist cap portions 9 are fitted and fixed to the joist units 1 to form the floor bed structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor structure of a building in which a flooring is supported by a plurality of supporting legs so as to float from a concrete floor surface.

[0002]

2. Description of the Related Art Conventionally, there has been known an underfloor structure which is a living floor of a building such as an apartment building and in which a flooring is floated from a concrete floor and held. As shown in FIG. 14, the floor base structure has a plurality of supporting legs 101 having a vertically adjustable length, which are provided on a lower surface of a receiving plate 100 having a predetermined size, and these receiving plates 100, 100,. .. Are successively provided one by one while raising the horizontal level in order from the corners of the surface, and a discarded plywood 102 is attached to the upper surface of the receiving plates 100, 100. And the said plywood 102,102 ...
The flooring 103, which is a finishing material, is sequentially adhered to the upper surface of the device.

[0003]

As described above, in the conventional underfloor structure of a building, a plurality of support legs 101 are suspended from the lower surface of the receiving plate 100, and these receiving plates 100 are horizontally arranged in order from the corner of the room. However, there is a problem that the structure is complicated, the construction is extremely troublesome and troublesome, and the construction period is prolonged and the construction cost is increased. In addition, the discarded plywood 102 is usually made of a particle board, is very heavy and is difficult to handle, and requires heavy labor. Further, since the discarded plywood and the flooring 103 are overlapped with each other, a person walks. A squeak was generated every time, which caused the noise. Therefore, the present invention has been made to solve the above-mentioned problems, and is easy to perform on-site, easy and hassle-free, can reduce the construction cost, and furthermore does not generate a squeak sound even when a person walks. It is an object of the present invention to provide a floor base structure.

[0004]

According to the present invention, there is provided a floor underground structure for a building according to the present invention, which is provided on a lower surface of a square member having a joint at both ends and having a predetermined length, and having a vertically adjustable length support. A joist formed by suspending a leg and a plurality of recessed joist capping portions at equal intervals into which the square members can be fitted orthogonally along the longitudinal direction of the strip. A plurality of joists connected to each other by joining the joints at both ends thereof to form a straight joist connecting body, and arranging a plurality of the joist connecting bodies at predetermined intervals in parallel with the concrete floor upper surface. At the same time, a plurality of vibration dampers are traversed from the top so as to be orthogonal to each joist connection body, each joist crown attachment part is fitted to each joist connection body and fixed in a lattice shape, and on the upper surface of the joist connection body group Flooring of a predetermined size was laid sequentially.

[0005] As described above, since the joist alone and the vibration damping material can be produced in advance at the factory to the standard size and assembled by simply assembling them at the site, the construction is simple, the construction is extremely easy, and there is no trouble and the work is easy. . In addition, the flooring may be directly laid on the upper surface of the joist connecting body group, thereby preventing noise. When necessary, a cushioning material may be interposed between the joist connecting body group and the flooring.

[0006] In addition, a single joist formed by vertically suspending support legs having a vertically adjustable length on the lower surface of a square member having a predetermined length provided with joints at both ends, and a single joist arranged in parallel Interposed between them, a connecting member for connecting and fixing both joists alone, and forming a straight joist connecting body by joining the joints of both ends of the plurality of joists alone, forming a joist connecting body. There is also a structure in which a plurality of connecting members are arranged in parallel with the concrete floor upper surface at predetermined intervals, and the plurality of connecting members are laid so as to be orthogonal to each other between the connecting members, and the connecting members are fixed in a lattice shape. .

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an underfloor structure of a building according to the present invention. FIG. 1 is a perspective view of a single joist that is produced in advance in a factory and assembled and arranged on a concrete floor of a room. The single joist 1 is formed of a wooden timber having a predetermined length, and lower surfaces at both ends. Metal supporting legs 2, 2 whose vertical length can be freely adjusted are provided vertically. More specifically, each support leg 2, 2
On the outer peripheral surface, a screw groove 4 to be screwed into a screw hole 3 penetrated through the joist unit 1 is engraved, and a rubber seat 5 to be in contact with the floor surface is attached at a lower end. Further, at both ends of the joist unit 1, a pair of notch steps 6, 6 in which an upper half portion or a lower half portion is cut out are provided to form joint portions 7 a, 7 b called phase connection. If the joist simple substance 1 is formed by using a square lumber made of a so-called thinned wood, the material cost can be reduced. Then, as shown in FIG. 2, one of the joist simplexes 1 (1
a) the notch step 6 of the joint portion 7a and the other joist simple substance 1 (1)
A straight joist connecting body 1m composed of a plurality of pieces is formed by intermittently inheriting the notch step 6 of the joint part 7b of a).

Reference numeral 8 denotes a vibration damping member for fixing and holding the joist connecting member 1m on the upper surface of the concrete floor F, which is formed of a thin strip of hard resin, and as shown in FIG. A plurality of concave-shaped joist crown attachment portions 9 into which square members can be fitted orthogonally are provided at equal intervals. Further, the vibration damping member 8 may be a thin metal plate. Each joist crown attachment part 9,9
On both edges of the insertion port 10 are formed ridges 11, 11 for narrowing the insertion port 10 so that the fitted square material does not easily come out.

Next, the order of assembling the floor substrate of the building according to the present invention will be described. First, as shown in FIG. 4, a plurality of joist simplexes 1, 1... Are connected to assemble a joist connecting body 1m, and a plurality of joist connecting bodies 1m are separated from each other on the upper surface of the concrete floor F by a predetermined distance and are juxtaposed and juxtaposed. I do. At this time, the height and level of each of the joists 1 are set by adjusting the length of each support leg 2 up and down. Next, the vibration damping material 8 is placed from above the joist connected bodies 1m, 1m,.
, 1m..., and a plurality of the joists are attached to the joints 7a and 7b at the ends of the joists 1 and 1 as shown in FIG. And nail 1 from above
2 and 12, the joists 1 and 1 and the vibration damping material 8 are integrally fixed. By repeating this operation, each joist connecting member 1m, 1m... Is integrally connected by a plurality of vibration dampers 8, 8,..., And each joist connecting member group 1M and each vibration damping material 8 are formed in a plane lattice shape. It is firmly framed.

In this manner, the floor base structure is completed, and the floor is completed by sequentially attaching the flooring 13 as a finishing material to the upper surface of the joist connecting body group 1M as shown in FIGS. In addition, as shown in FIG. 8, if necessary, the space between the joist connecting members 1m is
A heat insulating material 14 formed of a foamed resin or a urethane resin may be provided between the floor joists 13 and the flooring 13. A rubber plate-shaped cushion plate may be interposed between the two to provide sound insulation and elasticity.

FIGS. 9 to 13 relate to another embodiment. FIG. 9 is a perspective view of a single joist previously produced in a factory in the same manner as described above. Since the configuration is almost the same as that of the present embodiment, the same portions are denoted by the same reference numerals and the description thereof will be omitted. At the both ends, mounting holes 15 penetrating vertically are provided in the joist simple body 1a. Reference numeral 16 denotes a holding member made of a synthetic resin attached to the lower surface of the joist unit 1a. The short tube 1 that fits tightly into the mounting hole 15 on the upper surface of a locking plate 17 that projects horizontally outward from both sides of the joist unit 1a.
8 are provided integrally. The short cylinder 18 is provided on its inner peripheral surface with a thread groove 19 into which the thread groove 4 of the support leg 2 is screwed.
A pair of screw holes 20 penetrates a part protruding outward from both sides of the screw hole. Then, as shown in FIG. 10, a plurality of joist simple bodies 1a form a straight joist connecting body 1am.

Reference numeral 21 denotes a connecting member for fixing and holding the joist connecting member 1am on the upper surface of the concrete floor F. The connecting member 21 is formed of hard resin, and has an elongated mounting hole 22 into which the locking plate 17 is inserted at both ends. In addition, a pair of screw insertion holes 23 communicating with the screw holes 20 are provided at both ends.

Next, the order of assembling the floor substrate of a building according to another embodiment will be described. As shown in FIG. 12, a plurality of joists 1a, 1a... Are connected to assemble a joist connecting body 1am, and a plurality of joists connecting bodies 1am are connected to a concrete floor F.
Standing and juxtaposed on the upper surface in parallel with a predetermined interval. On this occasion,
The joints 7a, 7b of each of the joists 1a, 1a are nailed and stopped. Further, the height and horizontality of each of the joists 1a, 1a... Are set by adjusting the length of each support leg 2 up and down.
Next, each joist connecting body 1am, 1a thus juxtaposed
In addition, a plurality of connecting members 21 are laid so as to be orthogonal to each other between m and the respective locking plates 17 are inserted into the long holes 22 at both ends, and screws 24 are screwed into the screw holes 20 through the screw insertion holes 23. I do. By repeating this work, each joist connecting body 1a
are integrally connected by a plurality of connecting members 21, and each joist connecting body group 1aM and each connecting member 21 are firmly framed in a plane lattice shape. Thus, the floor base structure is completed, and thereafter, the flooring 13 is sequentially attached to the upper surface of the joist connecting body group 1aM.

In the underfloor structure of the building according to the present invention, the joists 1 and 1a, the vibration damping member 8 and the connecting member 21 are each manufactured in advance at a factory in a standard size, and these are transported to a construction site. While adjusting the height of the support leg 2, the joist connecting body 1m, 1
am are arranged in parallel with the upper surface of the concrete floor F and at predetermined intervals, and the vibration damping member 8 or the connecting member 21 is laid so as to be orthogonal to each joist connecting member 1m, 1am and fixed in a lattice form to form a floor foundation. Since it is only necessary to combine the joists 1 and 1a having fixed dimensions and the vibration damping member 8 or the connecting member 21, it is not necessary to take dimensions on site.
In addition, since each of the joists 1 and 1a is configured to be supported by the pair of left and right support legs 2 and 2, it is necessary to provide a so-called joist hook for receiving the ends of the joists 1 and 1a at the wall W. Disappears.

[0015]

As described above, the floor base structure of a building according to the present invention is constructed by simply assembling a joist alone and a vibration damping material or a connecting member manufactured to a standard size at a factory at a construction site. Since it can be formed, the structure is simple, the construction is easy, no labor is required, and the weight can be reduced, so that it is easy, the construction period can be shortened, and the construction cost can be reduced. Furthermore, since plywood or the like does not need to be discarded and is not overlapped, no squeaking noise is generated and the effect of preventing noise is provided.

In particular, in other embodiments, the connecting member is shorter than the vibration-preventing member, so that the connecting member is easy to form, the production cost is low, and the handling is not bulky and easy to handle.

[Brief description of the drawings]

FIG. 1 is a perspective view of a joist alone according to the present invention.

FIG. 2 is a perspective view of a part of a joist connecting body.

FIG. 3 is a perspective view of a damping member.

FIG. 4 is a plan view showing a floor base structure.

FIG. 5 is an enlarged sectional view of the same part.

FIG. 6 is a plan view showing a state in which a flooring is attached to the upper surface of the joist connecting body group.

FIG. 7 is a front sectional view of the same.

FIG. 8 is a partially enlarged side sectional view showing a state in which a flooring is attached together with a heat insulating material to the upper surface of the joist connecting body group.

FIG. 9 is a perspective view of a joist alone according to another embodiment.

FIG. 10 is a perspective view of a part of the joist connecting body.

FIG. 11 is a perspective view of the connecting member.

FIG. 12 is a plan view showing the floor base structure.

FIG. 13 is an enlarged sectional view of the same part.

FIG. 14 is a perspective view of a conventional floor base structure.

[Explanation of symbols]

 1, 1a joist simple substance 1m, 1am joist connecting body 1M, 1aM joist connecting body group 2 support leg 7a, 7b joint part 8 damping material 9 joist capping part 13 flooring 21 connecting member F concrete floor

Claims (2)

[Claims] 1. A simple joist formed by vertically suspending supporting legs having a vertically adjustable length on a lower surface of a square member having a predetermined length and having joint portions at both ends, and the square member along a longitudinal direction of a strip. Is formed by providing a plurality of concave-shaped joist crown attachment portions that can be fitted orthogonally at equal intervals, and is formed by joining the joint portions at both ends of the plurality of joists alone to form a straight line. A joist connecting member is formed, a plurality of the joist connecting members are arranged at predetermined intervals in parallel with the upper surface of the concrete floor, and a plurality of vibration dampers are suspended from above so as to be orthogonal to each joist connecting member. A floor covering structure for a building, wherein a joist crown attachment part is fitted to each joist connecting body and fixed in a lattice shape, and a flooring is laid on an upper surface of the joist connecting body group. 2. A joist single piece which is formed by vertically suspending a supporting leg having a vertically adjustable length on a lower surface of a square piece having a predetermined length provided with joint portions at both ends, and a joist single piece arranged in parallel. A connecting member for connecting and fixing both joists alone, forming a straight joist connecting body by joining the plurality of joists alone at their joints, and connecting the joist connecting body to a concrete floor upper surface. A plurality of connecting members are arranged in parallel with each other at predetermined intervals, and the plurality of connecting members are laid so as to be orthogonal to each other between the joist connecting members, and the respective joist connecting members are fixed in a lattice shape. Flooring structure of a building characterized by laying wooden flooring.