JPH0539142Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a double floor structure generally referred to as a raised floor.

Conventional technology In the past, large computer rooms had a double structure with a separate floor material raised above the flooring, and in this space, power supplies for the computers, cables for communication lines, etc. were laid, or air conditioning equipment was installed. etc. are stored.

In recent years, as office automation has progressed, many small electronic devices such as office computers and word processors have been installed in general offices. The floor structure is being removed.

In the conventional double floor structure, a support with a height adjustment mechanism is provided on the subfloor such as a slab, and the flooring material is laid on top of the support. However, in such a double floor structure, as seen in Utility Model Application Publication Nos. 59-120236 and 59-120237, the four corners of the floor material, which is approximately 450 to 600 mm square, are usually supported by supports. Since the height is adjusted by
It is necessary to adjust the level one by one, making the construction time-consuming and complicated.

Purpose of the invention The present invention provides a double floor structure with easy level adjustment and excellent workability.

Composition of the invention The double floor structure of the invention has a cross-sectional shape with a concave central part and horizontally projecting sides on the outside, and includes long supporting members arranged in parallel at a distance, and the long supporting members. a level adjuster which is attached at a distance in the length direction of the long support material, holds the long support material floating above the floor subfloor, and adjusts the height position of the long support material, and has a protrusion on the back surface; It is characterized by comprising a floor plate placed on the elongated support material with the protrusion fitted into the recessed portion of the elongated support material.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is an exploded explanatory sectional view showing an embodiment of the double floor structure of the present invention, and FIG. 2 is a partially omitted sectional view showing the longitudinal direction of an elongated support member. The long support material 11 has a cross section (a cross section perpendicular to the length direction)
When viewed from above, the center is recessed in a letter-like shape to form a fitting recess 13, and both sides thereof project horizontally outward to form projecting parts 15, 15. The bottom plate 17 of the fitting recess 13 has a bolt insertion hole 1.
9 is perforated. Such a long support material 1
As for the material 1, it is sufficient that the material has sufficient strength or rigidity to support the floor material 21, and for example, steel can be used. This kind of steel is called steel.

The elongated support material 11 is supported by level adjusters 47 at both ends in a state floating above the floor base 51. The level adjuster 47 supports the elongated support material 11 by floating it from the flooring base 51, and supports the flooring material 21 (the second
A space is set between the base (not shown in the figure) and the subfloor 51, and a mechanism is provided for adjusting the fixed height of the elongated support member 11. Level adjustment tool 47
The bolt member 45 includes a leg member 45 that is fixed to the floor subfloor 51, a bolt member 41 that is rotatably set up on the leg member 45 and has a male thread carved therein, and a nut member 31 that is threadedly engaged with the bolt member 41. The member 41 and the nut member 31 constitute a level adjustment mechanism.

The nut member 31 has a flange 31a on the upper surface side, and the upper surface of the flange 31a is roughened in a jagged manner. Such a nut member is commercially available as a toothed flange nut, and can be used as it is, or can be adjusted separately to adjust the size of the flange.

The long support member 11 is placed on the flange surface 31a of the nut member 31 with the bolt member 41 passed through the bolt insertion hole 19 thereof. Note that the flange surface 31a of the nut member 31 and the elongated flooring material 11 can also be bonded together. In this case, it is desirable to use a nut member (for example, a flange nut) having a flange surface that is not roughened.

The floor plate 21a is provided with a fitting protrusion 23a on the back surface of the floor plate 21, which is juxtaposed adjacent to the fitting recess 13 in the shape of the elongated support member 11.
It is fitted and fixed together with the protrusion 23b of b.
As the floorboard 21, flooring, a veneer, a metal plate, etc. are used.

Next, a method of constructing the double floor according to the embodiment of the present invention will be explained. First, the leg members 45 with the bolt members 41 erected are placed on a floor base 51 such as a slab or a ready-made floor.
Then, fix it with anchors, adhesive, etc. Next, the nut member 31 is screwed onto the bolt member 41. Note that this screwing can also be performed prior to fixing the leg members 45. Next, bolt insertion hole 1
9 so that the bolt member 41 passes through, and the elongated support member 11 is placed on the nut member 31. In this way, both ends of the elongated support material 11 are supported by the level adjusters 47, and by rotating the bolt member 41 from the upper surface side of the elongated support material 11 through the grooves 43, the elongated support material 11 level. In addition, since the upper surface of the flange surface 31a of the nut member 31 that contacts and supports the level adjuster 17 is roughened, a large frictional force acts.
When the bolt member 41 rotates, the nut member 31 does not rotate accordingly, and the bolt member 4
The height can be adjusted smoothly by turning 1. As described above, in the double floor structure of the present invention, leveling is performed at both ends of the long support material 11, so that leveling is completed at once in the length direction of the long support material 11. Note that a reinforcing holder may be provided between both ends of the elongated support material to hold the elongated support material. The long supports 11 are arranged in parallel, and the horizontal projecting portions 15 of the adjacent long supports 11 form the floorboards 2.
1, and by fitting and supporting the floor plate 21, a double floor structure is obtained.

The floorboards can also be arranged in an Amitabha shape, as shown in plan view in FIG. In this case, as shown in FIG. 4A (A-A sectional view in FIG. 3), three adjacent long supports 11 form one floorboard (for example, 21
I support b). These floorboards 21a, 21b, 21
Floorboards 21d, 21e, 21f in the row adjacent to c
is similarly supported as shown in FIG. 4B (BB sectional view in FIG. 3). Note that the central protrusion 25 on the back surface of each floorboard 21 may be omitted. In addition, the fourth
In Figures A and 4B, parts other than the floorboard and long support members are omitted.

Further, adjacent elongated supporting members can be connected with an appropriate connecting member. This makes it possible to realize a structure that is resistant to lateral movement.

The present invention is not limited to the above embodiments, and various modifications are possible. For example, Figures 1 and 2
In the figure, a nut member 31 having a roughened flange 31a is used to prevent the nut member 31 from rotating during level adjustment, and to more reliably place and hold the elongated support member 11. However, the following embodiments are also possible. For example, the fifth
As shown in the figure, the nut member 31 can also be fixed non-rotatably to the support member by means of a nut fixture 33. The nut fixture 33 has a central recess 34 that accommodates the nut member 31 in a non-rotatable manner, and a through hole 35 through which the bolt member 41 is inserted into the central recess 34.
is drilled. The nut fixture 33 is provided with standing walls 37, 37 that fit into the elongated support member 11, and the locking pieces 39, 39 are connected to the locking grooves 11a, 11.
By fitting the nut member 31 into the hole a, the nut member 31 is fixed unrotatably.

FIG. 6 shows a wall plate 31 installed on the nut member 31 itself.
By fitting this standing wall plate 31b to the elongated support member 11, the nut member 31 is fixed to the elongate support member 11 in a non-rotatable manner.

FIG. 7 shows a type in which a recess 11b for housing the nut member 31 in a non-rotatable manner is formed in the elongated support member 11.

In FIG. 8, a female threaded portion 11c is formed on the bottom plate 17 of the elongated support member 11 to be screwed into the bolt member 41.

Effects of the invention According to the invention, long supports having a cross-sectional shape that is concave in the center and horizontally protruding on both sides are arranged side by side, and the long supports are leveled with a leveling tool, and the long supports are lengthened. By fitting the back protrusion of the floorboard into the recess of the length and laying the floorboard, leveling and positioning of the floorboard can be easily performed, and a double floor can be easily constructed.

[Brief explanation of the drawing]

FIG. 1 is an exploded cross-sectional view showing an embodiment of the present invention, and FIG. 2 is a partially omitted vertical cross-sectional view. Third
The figure is a partial plan view showing an example of floorboard installation, FIG. 4A is a sectional view taken along the line A-A, and FIG. 4B is a sectional view taken along the line B-B. 5 to 8 are exploded views showing the relationship between the nut member and the elongated support member in various embodiments of the level adjustment tool of the present invention. 11... Long support material, 13... Fitting recessed part,
15...Horizontal overhang, 17...Bottom plate, 19...Adjustment hole, 21...Floor plate, 23...Protrusion, 25...
Central projection, 31... Nut member, 33... Nut fixing plate, 35... Erected wall, 37... Central recess, 3
9... Through hole, 41... Bolt member, 43... The groove, 45... Leg member, 47... Level adjuster, 5
1...Floor base.

Claims (1)

[Scope of Claim for Utility Model Registration] A long support material having a cross-sectional shape with a concave central portion and horizontally projecting outwards on both sides, and which are arranged in parallel at a distance, and the length direction of the long support materials. a level adjuster that is attached at a distance from the top of the floor and holds the long support floating above the floor subfloor and adjusts the height position of the long support; 1. A double floor structure comprising a floor plate that fits into a recessed part of a long support and is placed on the long support.