JP3094342B2 - Method of constructing double floor and method of manufacturing support block used therefor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a double floor and a support block used for the method.

[0002]

2. Description of the Related Art In recent years, office automation (O) has been developed.
With the progress of A), many small electronic devices such as office computers and word processors have been installed in general offices, and a double floor structure (free access floor) has been adopted.

[0003] In the conventional double floor structure, a number of supports having a height adjustment mechanism using a screw member or the like are fixed on a floor base such as a slab, and a floor material is laid thereon. Can be used as a wiring space, and a wiring device can be attached to a desired portion of the floor material. However, such a double floor structure is disclosed in Japanese Utility Model Laid-Open No. 59-120236 and
As can be seen from Japanese Patent Publication No. 0237, four corners of a flooring material having a size of about 450 to 600 mm are usually supported by supporting members, which requires time for construction and high construction costs. Further, the floor material is laid at a relatively high position from the floor base surface, and the height space in the room is wasted.

As a double-floor structure for low floors, it has been proposed that relatively simple leveling supports are spaced apart from each other without being fixed on a floor base, and the four corners of the floor material are supported by these supports. I have. However, in this method, the floor material is easily "wobbled", and there is a limit in strength, and there is a problem in placing a heavy object.

[0005]

SUMMARY OF THE INVENTION The present invention provides a method of constructing a double-floor structure capable of realizing a double-floor structure with a low floor height, easily providing strength, and reducing the construction cost. Is what you do. The present invention also provides a method of manufacturing a support block suitably used in the above-described construction method.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided a method for constructing a double floor, comprising: a support block having a shoulder portion which is one step lower at an end;
Are placed on the floor substrate, separated from each other, and
Lay the floor panel in such a way that the shoulders of the adjacent blocks
Double floor covering the space between
In the construction method, a floor panel having support legs on the lower surface of the panel is provided.
Using a panel, hook one end of the panel to the shoulder of the support block.
Support the floor panel with supporting legs and shoulders.
Sign.

Further, the method of manufacturing a support block for a double floor according to the present invention is a method of manufacturing a support block used in the above-mentioned construction method, wherein a mold for defining an outer surface of the support block including a shoulder is provided. Inside, a mesh-like structure that partitions the spread direction of the form in the plane direction into small chambers is housed, and cement concrete is poured into the form including the small room, and the form, the mesh-like structure and the cement concrete are removed. It is characterized by being integrated.

[0008]

FIG. 2 is a plan view showing an embodiment of the construction method according to the present invention, and FIG. 1 is a sectional view taken along the line Y--Y.
FIG. 3 is an exploded perspective view. In addition, for convenience of illustration, there are portions where the scales and the comparison dimensions do not match.

The support blocks 11 are laid out on a floor base 41 such as a concrete slab at a distance B and fixed to the floor base 41 with an adhesive or the like. The support block 11 is a flat plate-shaped block formed of cement concrete or the like and having a side A and a height J, and its periphery (four sides) being one step lower by K to form a shoulder 13. The space (width B, height J) between the support blocks 11, 11 is used as a space space of a double floor, and a floor panel is provided and covered on the upper part. Therefore, the support block 11 occupies a large area of the double floor to be formed, and the space portion is smaller than that of the conventional double floor structure using a leveling support.

Although various types of floor panels can be used, at the intersection formed by the corners of the four support blocks 11, a flat intersection floor panel 31 is attached to the shoulders 13 of the four support blocks 11. It is erected so that it is supported by the corners. In the part where the sides of the two support blocks face each other, as shown by 21 in the figure, the flat-shaped erection panel 21 is connected to the two support blocks.
It can span between 11 shoulders 13. In this embodiment, one installation panel 21 is installed, but it may be divided into a plurality of panels. Also, as shown at 23 and 25 in the figure,
A floor panel 23 for a wiring section with supporting legs having two supporting legs 25 on one side is used.
A part (half) of the space between the support blocks 11, 11 can be covered so as to hang on the shoulder 13 of the eleventh. The remaining part is covered with a floor panel 27 for a wiring device with supporting legs having the same erection function. By separating the functions in this manner, a wiring device such as an outlet can be attached to the floor panel 27, and the lower surface of the floor panel 23 can be used as a space for electric wiring.

To give an example of an actual construction example, one side (A
=) 1220mm x 1220mm, height 40mm, width (C =) 10mm, depth
(K =) A support block 11 having a shoulder of 20 mm is placed at a distance (B
=) It was laid at 380 mm and adhered on the floor substrate 41. One side (G
=) 400 mm x 400 mm, 20 mm thick crossing floor panel 31 is placed at the intersection, and the opposing part is a 400 mm x 200 mm (E x D) floor panel for wiring section with supporting legs of 20 mm thickness. 23 and three floor panels 27 for wiring equipment with supporting legs of the same size were placed, and a double floor was constructed. By laying the interior material on top of this, a comfortable office space can be realized.

In the above embodiment, the support block 11 has shoulders 13 on four sides. However, the support block 11 has shoulders only on two opposing sides, or has shoulders on one or three sides. Is also good. In addition, there is no need to have a shoulder over the entire length direction of the side. For example, as shown in FIG. 4, a shoulder 13 is formed on a part of the side and combined with a deformed floor panel 33 that fits this. A heavy floor may be configured. Such a support block 11 is effective in positioning the deformed floor panel 33 and preventing "rattle".

The base block can be manufactured at low cost by using cement concrete or the like, and by using foamed cement concrete, the weight and cost can be reduced. In addition, a base block can be created using a mold and a mesh structure.

FIG. 6 is a plan view for explaining one example of this manufacturing method, and FIG. 5 is a cross-sectional view along the line ZZ in FIG. Formwork
Reference numeral 51 denotes a box-like body having a shoulder 13 formed of a thin steel plate, and defines the outer shape of the support block 11. In this,
A mesh-like structure 53 made of semi-rigid foamed plastic is put in, and the foamed cement concrete 55 is poured into the voids to be hardened.

Since the obtained support block 11 uses the formwork 51, its surface 11a forms a clean plane, and the overall outer dimensions and the tolerance of the shoulder portion 13 can be accurately obtained. . Further, since the formwork 51 is relatively thin, and the expanded cement concrete 55 is divided into cubes by the flexible mesh structure 53, the support block 11 has a certain degree of flexibility as a whole, The back surface 11b can be fixed on the floor substrate 41 with an adhesive by adjusting to the unevenness of the floor substrate 41. In order to promote the integration of the mold 51 and the cement concrete 55, a rib may be protruded from the inner surface side of the mold 51. Further, the embedding of the mesh structure 53 can be omitted.

[0016]

According to the method for constructing a double floor of the present invention, even a double floor with a low height can be constructed simply and stably, and moreover, a support occupying a large portion of the floor. Since the block can be made of an inexpensive material such as concrete, an increase in construction cost can be prevented.

Further, according to the support block of the present invention, the support block exhibits flexibility as a whole, adapts to the unevenness of the floor substrate, and facilitates reliable bonding. Furthermore, since the flatness of the surface and the accuracy of the outer dimensions are easily obtained, a firm double floor can be easily constructed.

[Brief description of the drawings]

FIG. 1 shows a line Y- in FIG.
It is sectional drawing along Y.

FIG. 2 is a plan view showing an embodiment of the construction method of the present invention.

FIG. 3 is an exploded perspective view showing an embodiment of the construction method of the present invention.

FIG. 4 is a perspective view showing another embodiment of the support block used in the present invention.

FIG. 5 is a longitudinal sectional view taken along line ZZ in FIG. 6;

FIG. 6 is a plan view showing a production example of a support block.

[Explanation of symbols]

 11 Support block 13 Shoulder 21 Erecting panel 23 Floor panel for wiring section with supporting legs 25 Supporting leg 27 Floor panel for wiring device with supporting legs 29 Supporting leg 31 Floor panel for intersection 33 Deformed floor panel 41 Floor foundation 51 Formwork 53 Reticulated structure 55 Foam cement concrete

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04F 15/024 E04F 15/02 E04F 15/18

Claims (3)

(57) [Claims] (1) A support bracket with a shoulder at the end
Locks should be installed on the floor substrate, separated from each other,
Lay the floor panel so that it can be
The space between the shoulders of the floor and the space below the floor panel.
In the construction method of the heavy floor, there is a support leg on the lower surface of the panel
Use one of the floor panels and place one end of the panel on the shoulder of the support block.
And support the floor panel with support legs and shoulders.
And a double floor construction method. 2. A method of manufacturing a support block for use in the method for constructing a double floor according to claim 1, wherein the form of the form is defined in a form defining an outer surface of the support block including a shoulder. Houses a mesh structure that partitions the spreading direction in the plane direction into small chambers,
A method for manufacturing a support block, comprising: casting cement concrete into a mold including a small room; and integrating the mold, the mesh structure, and the cement concrete. Wherein the network structure is supported blanking <br/> locking method according to claim 2 which is formed of a thin plate made of flexible plastic.