JPH10152972A - Floor substrate structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor substrate structure of a building or the like excellent in workability which prevents creaks generated from the connection part of mutual lateral members and lessens the number of parts and reduces working labors. SOLUTION: The first and the second lateral members 1, 2 are assembled to cross at right angles with each other on the support tool under a floor, by use of the first metallic lateral member 1 provided with the side face part bent downward from both upper sides and provided with a recess in the middle and lower face part, the second metallic leteral member 2 provided with the upper face and the side face part with a recess and the lower face part likewise to cross at right angles with the first lateral member 1, the first connection part 22 fitted in the recess of the first lateral member 1, the second connection parts 24a, 24b arranged to cross at right angles with the first connection part 22 and fitted in the second lateral member 2, and a synthetic resin lateral connection tool 3 provided with a preventive part 23 against the mutual contact of the lateral members. And respective heights of the first and second lateral members 1, 2 are made to be flush with each other and the floor plates are laid thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor structure for a building or the like.

[0002]

2. Description of the Related Art As a joist mechanism, as shown in FIG. 6, a technique is disclosed in which a steel puller 51 and a steel joist 52 are combined, the upper surfaces of both are made the same level, and the space under the floor is made as small as possible. (Japanese Patent Laid-Open No. 64-2956)
No. 4).

[0003] The joist mechanism is arranged on a steel bundle 53 by pulling a large section 51 made of a hat-shaped steel section having a vertical web and a horizontal flange attached to the lower surface thereof. A joist 52 made of an inverted U-shaped steel is erected in a direction perpendicular to the large pull 51 and between the flanges of the large pull 51. A notch 54 is provided in the joist 52 corresponding to a position where the lip folded above the flange edge of the large-size pull-out 51 is engaged. From the small hole for the screw, the screw 55 is passed through the small hole
Are fixed to the large-scale drawing 51.

[0004] The vertical width of the joist 52 and the height from the flange of the large joist 51 are set equal, and the upper surface of the joist 52 and the large joist 5 are set.
1 and the upper surface of the same 1 are at the same level, and a lattice-shaped joist mechanism is constituted by a large pulling 51 arranged in parallel and a joist 52 orthogonal thereto. With this joist mechanism,
In comparison with the mechanism in which the joists 52 are stacked on the floor, the floor height can be reduced overall, and the floor plate 56 is supported by both the large-scale 51 and the joists 52, so that the strength is easy, That is, the range of material selection for the floor plate 56 is widened.

[0005]

The above joist mechanism employs a structure in which the joist 52 is directly combined with the joist 51 as a cross member and both are fastened with screws. At the connection portion with the joist 52, these metals come into contact with each other, so that there is a problem that squeak noise is generated from the connection portion between the horizontal members due to vibration or the like.

The large pulling 51 and the joist 52 have different shapes from each other, and it requires time and effort to form a notch 54 at the end of the joist 52 in order to connect them.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and prevents squeak noise generated from a connecting portion between cross members, reduces the number of parts, and reduces the labor for processing and the like. The purpose of the present invention is to provide a floor base structure having excellent properties.

[0008]

In order to solve the above-mentioned technical problems, a floor base structure according to the present invention, as shown in FIG. 1, has a flat upper surface portion, which is directed downward from both sides of the upper surface portion. A first horizontal member 1 made of metal having a side surface portion provided with a concave portion in the middle of bending and a lower surface portion bent inward from a lower end of the side surface portion, a flat upper surface portion, and an upper surface portion Has a side surface portion that is bent downward from both sides thereof and has a recess in the middle, and a lower surface portion that is formed by bending inward from the lower end of the side surface portion, with respect to the side surface portion of the first cross member. A second horizontal member 2 made of metal arranged in a direction orthogonal to the first connecting portion 22 fitted into the recess of the first horizontal member 1; A second connecting portion 24 fitted in the concave portion or the inside of the second cross member 2; And a cross-member connecting member 3 made of synthetic resin having a contact preventing portion 23 for preventing contact between the cross members orthogonal to each other, provided between the connecting portions of the above-mentioned cross members. The first and second cross members are combined orthogonally on the underfloor support using the cross member connector 3 and the height of each upper surface of the first and second cross members is adjusted. The floor is laid on the same level.

Further, in addition to this, the first cross member 1 and the second cross member 2 have the same cross-sectional shape.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a floor base structure according to the present invention. FIG. 1 shows a state in which cross members are connected to each other according to the floor base structure. This is to form a floor substrate by combining a second cross member 2 in a direction orthogonal to the first cross member 1, and the cross section of the first cross member 1 and the second cross member 2 is It has the same shape.

Each of the cross members 1 and 2 is made of metal, and has a planar upper surface portion 4, a side surface portion 5 which hangs from both sides of the upper surface portion 4 and has concave portions 6 a and 6 b in a substantially central portion, and 5
Is a long member made of a lower surface portion 7 which is bent inward from the lower end of the lower portion.

The cross member connecting member 3 for connecting the first cross member 1 and the second cross member 2 is made of synthetic resin, and is fitted over a predetermined range of the recess 6 of the first cross member 1. A first horizontal connecting portion 22, a second horizontal member 2 projecting in a direction perpendicular to the first connecting portion 22 and orthogonal to the first horizontal member 1.
The second connecting portions 24a and 24b inserted into the left and right concave portions 6a and 6b, respectively, and the horizontal members 1 and 2 located between the first connecting portion 22 and the second connecting portions 24a and 24b. It is composed of a plate-shaped contact preventing portion 23 for preventing contact.
Further, the first connecting portion 22 and the second connecting portions 24a, 24
A screw hole 19 in which the head of the screw 9 is buried is provided in b in the horizontal direction.

At the time of laying, the first cross member 1 and the second cross member 2 are arranged in combination on the underfloor support 12 which is provided on the floor slab 11 at a predetermined interval. As shown in FIG. 2, the underfloor support device 12 includes a base 13 on a disc,
A bolt portion 14 rotatably provided on the base 13 and a receiving plate 15 provided with a screw hole at the center of the rectangular plate and having left and right ends bent upward, are provided on the receiving plate 15. The first cross member 1 is placed via the elastic plate 16. The bolt portion 14 is provided with a gap 8 between the lower surface portions 7 of the first cross member 1.
The height of the first horizontal member 1 can be adjusted by inserting the tool through an insertion hole 10 provided in the upper surface portion 4 of the first horizontal member 1 and turning the bolt portion 14.

On the other hand, the second cross member 2 which is connected orthogonally to the first cross member 1 has the second connecting portions 24a and 24b of the cross member connecting member 3 previously attached to the ends thereof. Respectively into the left and right concave portions 6a, 6b of the horizontal member 2 and use the screws 9 (or tapping screws) to insert the second connecting portions 24a, 24b.
Is fixed to the second cross member 2. In this state, the front end of the second cross member 2 is
Is in contact with

A second cross member 2 is arranged in a direction perpendicular to the first cross member 1, and the first connecting portion 22 of the cross member connecting member 3 attached thereto is formed into a concave portion of the first cross member 1. 6a,
The first connecting portion 22 is fixed to the first cross member 2 using the screw 9, and the second cross member 2 is connected to the first cross member 1.

In the above-described connected state, the contact preventing portion 23 of the cross member connector 3 is interposed between the side surface portion 5 of the first cross member 1 and the end of the second cross member 2. Therefore, the metal materials of the first horizontal member 1 and the second horizontal member 2 do not directly contact each other.

As described above, the first cross member 1 and the second cross member 2
Are connected using the cross member connecting tool 3, as shown in FIG. When adjusting the height, for the underfloor support device 12 that needs to be adjusted,
A tool is inserted through the insertion hole 10 provided in the upper surface 4 of the first cross member 1 and the bolt 14 is turned to adjust the height to a required height.

In the above-mentioned floor base structure, the first cross member 1
And the upper surface 4 of the second cross member 2 are at the same level. Therefore, since the floorboard is also laid on the first horizontal member 1, it can be said that the first horizontal member 1 has both the function of enlarging and the joist. Then, the lower adhesive plate 17 is laid uniformly from the first horizontal member 1 to the second horizontal member 2, and the flooring plate 18 is further laid thereon to finish the floor.

FIG. 4 shows a cross member connecting tool 31 according to another embodiment. The cross member connecting device 31 has a first connecting portion 32 and a contact preventing portion 33 having the same shape as the cross member connecting device 3, and furthermore, in a direction perpendicular to the first connecting portion 32. The projecting second connecting portion 34 is formed so that its cross-sectional shape matches the internal shape of the second cross member 2, and is entirely fitted inside the second cross member 2, and Is fixed using the screw 9 from the concave portion 6a.

Even when this cross member connecting member 31 is used, a contact preventing portion is provided between the side portion 5 of the first cross member 1 and the end portion of the second cross member 2 which is perpendicular to the side portion. Because 33 intervenes,
The metal material of the first horizontal member 1 and the second horizontal member 2 do not directly contact each other.

FIG. 5 shows cross member connecting members 40 and 41 according to still another embodiment. These cross-member connectors 4
Reference numerals 0 and 41 denote an independent pair, and the first cross member connecting member 40 is used at one corner of the intersection of the first cross member 1 and the second cross member 2, and The cross member connecting tool 41 is used at the other corner.

Each of the cross members 40 and 41 has a first connecting portion 42 and a second connecting portion 44 orthogonal to the first connecting portion 42. The first connecting portion 42 and the second connecting portion 44 has the same shape in cross section, and a concave portion 45 is provided horizontally at a substantially central portion on the side in contact with the first horizontal member 1 and the second horizontal member 2, respectively. A convex side portion 46 is formed above the concave portion 45.

Further, in the cross member connecting members 40 and 41, a plate-shaped contact preventing member is provided in parallel with the first connecting portion 42 above a portion where the first connecting portion 42 and the second connecting portion 44 intersect. A portion 43 is protruded, and the contact preventing portion 43 is formed at a position where the contact preventing portion 43 is further extended downward to seal the concave portion 45.

In use, the convex side portion 46 of the second connecting portion 44 of the first cross member connecting tool 40 is previously attached to the end of one side surface portion 5 of the second cross member 2. The second horizontal member 2 is fitted into the concave portion 6a of the second member 2 and is inserted into the concave portion 45 of the second connecting portion 44.
Side part 5 is fitted. Then, the second connecting portion 44 is fixed to the second cross member 2 using the screw 9. In this state, a part of the distal end of the second cross member 2 is in contact with the surface of the contact preventing portion 43. The second cross member connecting tool 41 is similarly fixed to the other side surface portion 5 of the second cross member 2.

Then, the second cross member 2 is arranged in a direction orthogonal to the first cross member 1, and the first connecting portion 42 of the cross member connecting member 40 attached to the second cross member 2 is moved to the first position. Second connection part 4
In the same manner as in the case of 4, the first cross member 1 is fixed using the fitting screw 9 and the cross member coupling tool 41 is similarly fixed, and the second cross member 2 is attached to the first cross member 1. connect.

Even in the case where the cross members 40 and 41 are used as described above, since the contact preventing portion 43 is interposed between the first cross member 1 and the second cross member 2, There is no direct contact between the metal members of the one cross member 1 and the second cross member 2.

Therefore, according to the above-described embodiment, since the cross member having the contact preventing portion is used for connecting the first cross member 1 and the second cross member 2, the first cross member is used. The metal materials of the first and second cross members 2 do not directly contact each other, and the generation of squeak noise due to the contact between the metal materials can be prevented.

Although two types of materials, that is, large-scale pulling and joist, have been used as the floor substrate structure in the related art, the first and second horizontal members 1 and 2 having the same cross-sectional shape are used in the above embodiment. Thus, the number of parts can be reduced, which is economical.

Furthermore, it is possible to simply and firmly connect the two cross members by simply using the cross member connecting tool and fitting them into predetermined portions of the first cross member 1 and the second cross member 2. As a result, it is possible to easily and quickly combine the floor foundation without the need for performing a processing process in advance for connection to the end of the cross member as in the related art, and the workability is excellent.

[0030]

As described above, according to the floor substrate structure according to the present invention, the metal having the side surface and the lower surface that are bent downward from both sides of the upper surface and provided with a recess in the middle. A first cross member, a second cross member made of metal having a side surface portion bent downward from both sides of the upper surface portion and provided with a recess in the middle, and a lower surface portion, and a cross member orthogonal to the first cross member. Since the structure using the synthetic resin cross member connecting device having a contact prevention part for preventing contact between them is adopted, the metal material of the first cross member and the second cross member directly contact each other. Therefore, the generation of squeak noise due to contact between metal materials can be prevented, and furthermore, it is only necessary to fit the connecting portion of the cross member connecting tool into a predetermined portion of the first and second cross members. Since both cross members can be connected easily and firmly, and in addition, labor for processing and the like can be reduced, Easily and quickly can be combined subfloor, there is an effect that excellent workability.

Further, since the cross-sections of the first and second cross members are the same, the number of parts can be reduced and there is an effect that the economy is excellent.

[Brief description of the drawings]

FIG. 1 is a diagram showing a connection state between cross members in a floor base structure according to an embodiment of the present invention.

FIG. 2 is a diagram showing a state in which cross members and plate members are arranged according to the floor base structure in the embodiment.

FIG. 3 is a diagram showing a state in which cross members are combined in a lattice shape according to the embodiment.

FIG. 4 is a view showing a cross member connecting tool according to another embodiment.

FIG. 5 is a view showing a cross member connecting tool according to still another embodiment.

FIG. 6 is a perspective view (a) and a side view (b) showing a joist mechanism according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st cross member 2 2nd cross member 3 cross member connection tool 22 1st connection part 23 contact prevention part 24 2nd connection part

Claims (2)

[Claims] 1. A flat upper surface portion, a side portion bent downward from both sides of the upper surface portion and provided with a concave portion in the middle, and a lower surface portion bent inward from a lower end of the side surface portion. A first horizontal member made of metal, a flat upper surface portion, a side portion having a concave portion provided in the middle by bending downward from both sides of the upper surface portion, and being bent inward from a lower end of the side portion. A metal second horizontal member arranged in a direction orthogonal to a side surface portion of the first horizontal member, and a first fit into the concave portion of the first horizontal member. A connection portion, a second connection portion that is orthogonal to the first connection portion and is fitted into the recess or the inside of the second horizontal member, and between the first connection portion and the second connection portion. Using a synthetic resin cross member connecting member provided with a contact preventing portion for preventing contact between the orthogonal cross members. An underfloor support is erected on the floor slab, and the first and second cross members are orthogonally combined on the underfloor support using the cross member connector, and the first and second cross members are combined. An underfloor structure, characterized in that the upper surfaces of the cross members are at the same level and floor boards are laid thereon. 2. The underground floor structure according to claim 1, wherein said first and second cross members have the same cross-sectional shape.