JP3127388B2 - Dry floor structure, dry floor construction method, and joist with elastic supporting legs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a dry floor, a method of constructing a dry floor, and a joist with elastic supporting legs characterized by the structure of the joist.

[0002]

2. Description of the Related Art Conventionally, in order to adjust the unevenness of the floor, a mortar mass that has not yet solidified is placed in a predetermined position on slab concrete, and the height of the mortar mass is fixed on the mortar mass at a constant height. It was set up by pressing it down. In this case, after the mortar was solidified, the pulling was installed at a uniform height, and a joist and a floorboard were constructed on the pulling.

In another method, a height-adjustable point supporting leg is fixed on a concrete slab with an adhesive, and the height of the point supporting leg is adjusted directly or on the point supporting leg. The floorboards were erected and fixed via joists.

[0004]

In the above prior art,
In any of the methods, it takes time until the mortar or the adhesive is solidified, and during that time, there is a problem that the work of the next step cannot be performed, leading to a delay in the work period. In addition, in the conventional method, when using a mortar mass, before adjusting the mortar mass to a large scale, or in the case of a point support leg, adjusting the height to a predetermined height before attaching a floor plate etc. to the point support leg. And the adjustment work becomes complicated. Further, in the conventional method, it is difficult to add a means having sound insulation performance between the concrete slab and the joist.

[0005]

However, the present invention solves the above-mentioned problem by providing an elastic support leg on the lower surface or using a joist with the elastic support leg to construct a dry floor. .

That is, according to the present invention, the elastic supporting legs which can be moved up and down at predetermined intervals are attached to the lower surface of the joist base having a predetermined length.
In both cases, a small elastic supporting leg is provided below the joist base.
A joist with elastic supporting legs, wherein a storage portion capable of housing at least an upper portion is formed . Also, on the underside of the body,
Vertical screw holes are provided at predetermined intervals, and the screw holes are screwed with the upper portions of the screw bars of the elastic support legs formed by screwing the screw bars on the upper portions of the elastic support bases . A joist with elastic support legs, wherein a storage portion capable of housing at least an upper portion of the elastic support base is formed. The above joist base is a joist with elastic support legs, in which a threaded escape hole is formed in the joist base and the lower surface of the accommodation portion of the joist base is lined with a reinforcing metal fitting having a screw hole.

[0007] Further, according to the invention according to the method, a joist having elastic support legs that can move up and down is placed in parallel on a predetermined slab.
The elastic support leg pivots to lift the resilient support legs, the roots
The elastic support legs have less
A method of constructing a dry floor characterized in that the upper part is housed, and the height of the upper surface of each joist is finely adjusted, and then floor boards are laid in parallel on the joist.

Further, a floor structure in which joists with elastic supporting legs which can be moved up and down are arranged in parallel on a concrete slab, and composite floorboards based on particle boards are fixed in parallel on the juxtaposed joists. Then, at the bottom of the joist, rise
The accommodation part which can accommodate at least the upper part of the elastic support leg
It is a dry floor structure characterized by being formed .

The above-mentioned structure in which the joist thin plates are stacked in the horizontal direction means that the joist thin plates having the same height as the joists are stacked in the vertical section along the kiguchi in a state where the joists are placed in the horizontal direction. This is a structure that forms a joist having a predetermined width.

[0010]

[Function] Since the elastic supporting legs which can be moved up and down are attached to the joists, the installation of the joists and the unevenness adjustment of the joists can be performed simultaneously. When the elastic support leg is composed of a screw and an elastic support base, and the screw is screwed into the screw hole of the joist base, the height of the joist can be easily adjusted by turning the screw. In addition, when the escape hole of the screw rod is formed in the joist base, the rotation of the screw rod can be operated from the upper surface of the joist.

Further, when the storage portion is formed below the joist base, the elastic support base can be stored in the storage portion, and the height of the joist can be set low. The lower surface of the housing portion of the joist body, when lined with a reinforcing metal fitting to form a screw hole, even if provided with a housing part, without impairment of strength of the joist.

[0012]

Embodiment 1 An embodiment using a joist of the present invention will be described with reference to the drawings.

Through holes (escape holes) 5 and 5 penetrating vertically are formed at predetermined intervals (every time a support leg is installed) on the lower surface 3 of the joist base 1 formed according to the joist to be formed. The joist substrate 1 is composed of a large number of thin joists 1 having a width of about 2 to 3 mm.
a and 1a are bonded and laminated in the horizontal direction (FIG. 5C) to form a predetermined width (for example, 38 mm as described later).

At the lower part of the joist base 1, the periphery of the through hole 5 is cut out to form an accommodating portion 7 capable of accommodating an upper portion of an elastic support table to be described later.

An upper plate 11 which contacts the upper wall 8 of the housing 7
A side plate 12 that contacts the side wall 9 of the housing portion 7 is continuously provided at both ends of the housing portion 7, and a flange 13 that contacts the lower surface 3 of the joist base 1 is connected to the side plate 12, and the through hole is formed in the upper plate 11. 5, a through-hole 14 corresponding to the through-hole 1 is formed in the lower surface of the upper plate 11.
A nut (screw hole) 15 communicating with the fixing member 4 is fixed to the reinforcing metal fitting 1.
0. The reinforcing bracket 10 is lined with the accommodating portion 7 of the joist base 1. Nut 15 of the reinforcing bracket 10
Then, the upper part 17 of the screw rod 16 in which the upper part 17 is a forward screw and the lower part 18 is a reverse screw is screwed. A groove 19 into which a driver can be inserted is formed on the upper surface of the screw rod 16. A screw hole 21 on the upper part of the elastic support 20 is screwed into the lower part 18 of the screw rod 16. The elastic support base 20 has a partially conical shape and has a through hole (escape hole) 2 through which the screw rod 16 can be inserted.
2, a metal disk 23 having a screw hole 21 through which the screw rod 16 can be screwed is fitted and fixed. The elastic support base 20 is made of a rubber material having a higher hardness than that conventionally used for vibration isolation, and has concentric grooves 24 formed on the lower surface (FIG. 5A).
(B)). As described above, joist 25 with elastic support legs
(FIGS. 1B, 4A, 4B, and 4C).

In the above, the screw 16 and the elastic support 2
The elastic support leg 26 is formed from zero. The elastic support legs 26
It is provided at a plurality of locations at predetermined intervals according to the strength of the joists and the strength of the elastic support legs. For example, a cross section of 38 mm x 5
When the length of the joist base 1 is 6 mm and the length is 270 cm, two pieces are provided at intervals of 125 cm in the middle and two pieces are provided at both ends (FIG. 4A). b)
(C)). Also, when the length is 360 cm, 12
Two pieces are placed at an interval of 5 cm and two pieces are provided at both ends (FIGS. 4D, 4E, and 4B).

In the above embodiment, the joist substrate 1 is formed by laminating thin plates. However, other structures can be used as long as they can exhibit a predetermined strength.

Further, in the above embodiment, the reinforcing bracket 20
The nut 15 is fixed to the screw hole,
A thread may be formed by forming a thread in the zero through hole 14. Further, a long nut may be inserted into the through hole 5 to form a screw hole (both are not shown).

In the above-described embodiment, it is desirable that the screw rod 16 is formed with a forward and reverse screw vertically, but it is also possible to form the screw with the same screw. Also, the groove 2 is provided on the upper surface of the screw rod 16.
Although the groove 4 is formed, the groove may be a + -shaped groove, a square or a hexagonal groove, and any shape may be used as long as it can be rotated by a driver, a wrench, or the like (not shown).

Further, in the above embodiment, the reinforcing bracket 20
Can be omitted (not shown) if another screw hole can be formed and the necessary elastic support legs 26 can be supported.

In the above embodiment, the joist substrate 1
Although the accommodation part 7 for accommodating the upper part of the elastic support base 20 is formed in the above, if the strength is allowed, the accommodation part 7 may be formed in a shape capable of accommodating the entire elastic support base 20. The accommodation section 7 was formed so that the height of the joist 25 could be set as low as possible .

In the above embodiment, the elastic support 2
Although the shape of 0 is a partial conical shape, it may be another shape such as a partial pyramid shape or a cube (not shown).

Further, in the above embodiment, the screw rod 16 is structured to rotate by operating from the through hole 5 on the upper surface of the joist 25, so that fine adjustment can be easily performed. (Not shown).

[0024]

Embodiment 2 A dry floor structure and a floor construction method according to an embodiment of the present invention will be described with reference to the drawings.

First, the structure of the floor plate 32 used in the embodiment will be described. A particle board is used as the base material 28, a surface plate 29 made of natural wood decorative plywood is laminated on the upper surface of the base material 28, and a lower plate 30 made of Lauan plywood is laminated on the lower surface, and the lower surface of the lower plate 30 is The back plate 31 is fixed along the joining edge 33 on one side to form the floor plate 32 (FIG. 3). The back plate 31 is formed to protrude from the joint edge 33 by a predetermined length. Also, a ridge 35 is formed on the joining edge 33 on one side of the base material 28, and the ridge 3 is formed on the joining edge 34 on the other side.
5 is formed .

Next, the floor structure and the floor construction method will be described. A concrete joist 40 is fixed to a predetermined concrete wall surface 39 close to the slab 38 so as to correspond to the height of the upper surface of the joist from above the slab 38. Next, on the upper surface of the concrete slab 38, along the joist setting position,
The adhesive 41 is applied corresponding to the lower surface position of FIG.
(A)).

On the concrete slab 38, the joists 25, 25 of the first embodiment whose lengths of the elastic support legs 26 are adjusted in advance corresponding to a predetermined height are placed in parallel. At this time, the end part 4 of the joist 25 is placed on the above-mentioned joist 40 (FIG. 6).
(A)) The lower surface of the elastic support table 20 is adhered to the adhesive 41.
Stick to Next, there is unevenness in slab 28,
If the height 5 is not the predetermined height, a driver is inserted from above each of the through holes 5 of the joist 25, and the screw 16 is rotated to finely adjust the joist 25 to the predetermined height. Next, joist 25
Is fixed to the joist 40 (FIG. 1B).

Next, on the parallel joists 25, 25,
The floorboard 32 is laid with the joining edges 33 and 34 adjacent to each other, and the floorboards 32 and 32 are fixed to the joists 25 and 25. The floor 42 is constructed as described above (FIGS. 1C and 2).

Since the floor 42 having the above structure is formed by laminating the joists 25 in the lateral direction, the rigidity can be enhanced as compared with the conventional joists, and the distance between the supporting points (supporting legs) can be reduced by the conventional floor plate (for example, As compared with about 45 cm in the case of (45 × 180 cm), it can be set to about 125 cm as described above. Therefore, since the number of supporting legs in contact with the slab can be significantly reduced, the sound insulation effect on the upper and lower floors sandwiching the slab can be improved. Further, since the elastic support base 20 having high hardness is used, and the floor plate 32 using the particle board as the base material 28 is used, the sound insulation effect can be further enhanced.

In the above, a large space for piping and wiring can be taken below the joist 25, and piping and wiring can be performed before or after installing the joist 25 (not shown). .

In the above description, the joist is mounted on the joist 40. However, when the floor is set low, the joist 4 is used.
The end surface 4a of the joist 25 is attached to the side surface of No. 0, and the upper surface 40a of the jowker 40 and the upper surface 2 of the joist 25 are constructed flush (FIG. 6B).

In the above embodiment, the floor plate 32 has a structure in which the particle board is used as the base material 28 and is combined with the joist 25 having the elastic support legs 26, so that the sound insulation performance can be improved. (Not shown).

In the above embodiment, the elastic support 2
Although it is desirable to bond the O to the slab, it may be fixed in other ways and not fixed.

[0034]

According to the present invention, since the floor is constructed by using the joists having the elastic supporting legs, there is an effect that the unevenness can be adjusted reliably and efficiently. In addition, when constructing the joists, the non-land adjustment work and the installation of the joists can be performed at the same time, so that there is an effect that the construction period can be shortened. Also, in the storage section provided under the joist
It can accommodate the elastic support legs in the raised position,
The effect is that the height can be set as low as possible.

Further, when a joist base material laminated in the lateral direction is used, and a joist with elastic support legs and a floorboard made of a particle board are used, there is an effect that the sound insulation performance can be improved.

[Brief description of the drawings]

FIGS. 1A to 1C are longitudinal sectional views illustrating a construction method according to the present invention.

FIG. 2 is a perspective view in which a part of the floor structure of the present invention is cut off.

FIG. 3 is a longitudinal sectional view of a floor substrate used in the embodiment of the present invention.

4A is a front view of a joist of the present invention, FIG. 4B is a side view, FIG. 4C is a plan view, FIG. 4D is a front view of another joist, and FIG.

FIG. 5A is a partially enlarged longitudinal sectional view of an elastic leg of a joist;
(B) is a cross-sectional view taken along the line AA of (a), (c) is a cross-sectional view taken along the line BB of (a), and (c) shows a laminated structure using thin plates.

6 (a) and 6 (b) are enlarged longitudinal sectional views showing a mounting structure of an end portion of a joist according to the present invention .

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 joist base 2 upper surface (joist base) 3 lower surface (joist base) 5 through-hole 7 accommodation part 10 reinforcing bracket 15 nut 16 screw 17 upper part (screw) 18 lower (screw) 20 elastic support 21 screw (elastic support) 25 joist 26 support leg 28 base material 32 floor plate 38 slab 42 floor

Claims (5)

(57) [Claims] An elastic support leg which can be moved up and down at predetermined intervals is attached to a lower surface of a joist base having a predetermined length.
At least the upper part of the raised elastic support legs is
A joist with elastic supporting legs, characterized by forming a housing portion capable of housing . 2. A vertical threaded hole is provided at predetermined intervals on a lower surface of a joist base body formed by laminating a large number of joist thin plates in a lateral direction, and a screw rod is screwed into the screw hole above the elastic support base. combined screwed the upper該螺rod of resilient supporting leg comprising, at the bottom of the joists base, elastically supporting leg with the floor joists, characterized in that the formation of the accommodating portion that can accommodate at least an upper portion of the elastic supporters. To 3. A joists substrate, as well as bored relief hole of threaded rod, the joists of the lower surface of the housing portion of the base, the elastic support legs of claim 1 or 2, wherein the lined metal fitting forming the screw hole Attached joist. 4. A on a given slab, the joists with the elastic supporting legs parallel placed, by rotating the elastic support legs to lift the resilient support legs, the housing portion formed in the bottom of the joists ,
A method of constructing a dry floor , wherein at least an upper portion of the elastic supporting leg is accommodated, and a height of an upper surface of each of the joists is finely adjusted, and then floor boards are laid in parallel on the joists. 5. A floor structure in which joists with elastic supporting legs which can be freely moved up and down are arranged side by side on a concrete slab, and composite floor boards are fixed in parallel with particle board as a base material on the juxtaposed joists. And rose to the bottom of the joist
Forming a storage part that can store at least the upper part of the elastic support leg
Dry floor structure characterized by being done.