JP2001262814A - Double floor structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double floor structure having excellent workability and a wide wiring space in a structure in which both a supporter and a panel follow up to the unevenness of the installation floor face of a building. SOLUTION: Four supporting members 1 laid under the state in which corner sections 1c are abutted on the installation floor face W are connected by fitting fitting holes 2a and intermediate supporting columns 1a on the corner sections 1c while being covered with corner-section supporting columns 2 from the upper sections of corner-section collecting sections 4. The bearing surfaces 2b of the corner-section supporting columns 2 are positioned at places higher than the front ends of the intermediate supporting columns 1a, and approximately triangular top-face panels 3 are laid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for supporting a top panel with a plurality of support columns in a double floor laid on an installation floor of a building.

[0002]

2. Description of the Related Art Conventionally, a plurality of integrally formed flexible support members are laid on the floor of a building, and a rigid floor panel is laid on the support members. −
There is one described in Japanese Patent Publication No. 1356. In this conventional example, although the support member follows the unevenness of the installation floor, the height of the support portion of the upper panel is not constant, so that the portion supporting the rigid upper panel is Unsupported portions occur, and the top panel becomes unstable and rattles.

[0003] As a double floor for preventing rattling of the upper panel by both the support member and the upper panel following the unevenness of the installation floor surface, Japanese Unexamined Utility Model Publication No. 5-22757 discloses the double floor. There is a thing, a plurality of integrally formed flexible support members are laid on the installation floor surface, a flexible top panel is laid on the support members, and the support members and the panels are locked. .
However, the direction and height of the locking portion of the support member following the unevenness of the installation floor surface are not constant, and it is difficult to lock the supporting member in accordance with the engaging portion of the flexible upper panel. And
Poor workability. Moreover, in order to use a flexible member as a top panel, a large number of support parts are required.
For this reason, a large number of locking operations between the support member and the top panel are required, and a wide wiring space cannot be secured by the support portion.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art. Another object of the present invention is to provide a double-floor structure which can prevent rattling of an upper panel, is easy to construct, and can secure a wide wiring space in a structure in which both follow.

[0005]

In order to solve the above-mentioned problems, a double floor structure according to the present invention comprises a plurality of intermediate support columns arranged side by side in a vertical direction and a horizontal direction. The pillars are integrally connected to each other in a substantially rectangular shape, and corner support pillars provided at the corners of the support member and projecting upward from the intermediate support pillars support the upper panel. The upper panel is made of a steel plate and has a substantially triangular upper surface, and is supported two by two on a corner support column so that the upper surface has a rectangular shape in plan view. Therefore, the substantially triangular upper surface panel is always supported at the three corner points by the corner supporting pillars, so that the upper surface panel does not rattle. Further, since the upper panel is made of steel plate and has rigidity, it is not necessary to provide a large number of support portions of the support member, so that a wide wiring space can be secured.
Further, when the upper panel bends downward due to excessive load, the intermediate support pillars support the upper panel to prevent deformation of the upper panel. Further, since the upper panel is constructed or completed simply by being placed on the support member laid on the installation floor, the number of work steps is small and the workability is good.

[0006] Further, by joining the oblique sides of the two facing upper panels with a flexible joint deforming portion, the two upper panels are laid only once and the workability is good.

[0007] Further, by providing the upper panel with a reinforcing portion whose side is bent downward, the strength of the side of the upper panel can be improved.

Further, since the supporting member is connected to the corner supporting column and the adjacent intermediate supporting column by a continuous portion, the supporting member is simply laid on the installation floor surface, and the workability is good.

The corner support pillar has a cylindrical connecting body which is open at the bottom and a support surface for supporting the upper panel on the upper surface, and four support members laid on the installation floor surface. By connecting the supporting members by engaging the connecting trunk with the corner collecting part at the gathering part where the corners gathered, strict positioning work is not required when laying the supporting member, and the workability is improved. good.

The corner support column has a support portion integrally projecting above the corner of the support member, a connecting trunk portion having a cylindrical opening at the bottom, and an insertion hole for inserting the support portion into the upper surface. By connecting the support members by inserting each support column into the insertion hole at the gathering portion where the corners of the four support members laid on the installation floor are metal connection struts having Strict positioning work is not required when laying the support member, and the workability is good.
Furthermore, even if the resin support pillar is melted due to a fire or the like, the steel plate upper panel is held by the metal connection support pillar, so that a pedestrian injury accident due to the drop of the upper panel can be prevented.

[0011]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing a double floor structure, in which reference numeral W is an installation floor, 1 is a support member, 2 is a corner support column, and 3 is an upper panel.

The support member 1 is made of a synthetic resin,
a are arranged side by side vertically and horizontally, and adjacent intermediate support columns 1a, 1a are integrally connected by a flexible connecting arm 1b. At the four corners, an intermediate support pillar 1a with adjacent corners 1c
The support member 1 is formed in a substantially square shape. Then, a plurality of support members 1 are laid on the installation floor surface W with the corners 1c abutting each other.

FIG. 2 is a side sectional view taken along the line AA of FIG. 1 showing a double floor structure. As shown in FIG. 2, the corner support columns 2
A fitting hole 2a that fits with the corner 1c of the support member 1 is provided, and fits with the corner gathering portion 4 where the corners 1c of the four support members 1 laid on the installation floor surface W abut. By joining, the support member 1 is connected.

The upper panel 3 is made of a rigid steel plate and has a right-angled isosceles triangle shape which divides the rectangular support member 1 into two diagonal lines. The upper panel 3 has a flat upper surface portion 3a, side portions 3b and oblique sides. 3c.

The construction procedure of the double floor constructed as described above will be described. First, the support member 1 is placed on the installation floor W.
Are laid so that the corners 1c are abutted against each other. Next, from above the corner gathering portion 4 where the corners 1c of the four support members 1 are gathered, the fitting hole 2a and the corner 1c are fitted over the corner supporting pillars 2 so as to fit the corners 1c. The support members 1 are connected. At this time, the bearing surface 2b of the corner support column 2 is located higher than the tip of the intermediate support column.

Next, the upper panel 3 is laid on the bearing surface 2b of the corner support column 2. Two upper panels 3 are laid with one oblique side 3c opposed to one rectangular support member 1. At this time, the top panel 3 is supported at three points by the respective bearing surfaces 2b of the three corner support columns 2, and the tip of the intermediate support column 1a is at a position lower than the support surface 2b of the corner support column 2. Therefore, even if the height of the tip of the intermediate support column 1a is different following the unevenness of the installation floor surface W, the intermediate support column 1a does not contact the upper surface panel 3 even if the height position is different. Even if the height position of the support surface 2b of the support column 2 is different, the upper surface panel 3 is supported in a stable state without rattling.

A cable 5 laid under the floor, such as a power line or a telephone line, is laid in a wiring space 6 surrounded by the intermediate support column 1c, the connecting arm 1b, and the upper panel 3. Since the upper panel 3 is made of a steel plate, the intermediate support columns 1a that support the upper panel 3 are juxtaposed at a wide interval, and the wiring space 6 is widely secured.

FIG. 3 is a side sectional view at the same position as FIG.
This shows a state where an excessive load P is applied to the upper panel 3. As shown in FIG. 3, when a load P is applied from above the upper panel 3, it is deformed downward by a displacement within the elastic deformation area of the upper panel 3, and then is supported by the tip of the intermediate support column 1 a. This prevents the panel 3 from being deformed beyond the elastic deformation range.

Next, a second embodiment of the present invention shown in FIG. 4 will be described. FIG. 4 is a partially cutaway perspective view showing the upper panel of the second embodiment in which the upper panel is modified.
In the upper panel 3 in the present embodiment, two upper panels 3 in a state where the oblique sides 3c face each other are integrally formed by a flexible joint deformation portion 3d.

In this example, the upper panel 3 has to be laid only once for one support member 1 and the workability is good, and corners having different heights following the unevenness of the installation floor surface W are provided. Even when it is laid on the bearing surface 2b of the part support column 2, since the joint deformation part 3d is deformed, the upper panel 3 is supported in a stable state without rattling.

FIGS. 5A and 5B are partially cutaway perspective views showing the upper panel of the third embodiment in which the upper panel is modified. The upper panel 3 of FIG. A reinforcing portion 3e is formed by bending the 3b and the hypotenuse portion 3c downward.
The upper panel 3 of FIG. 5B is obtained by forming a reinforcing portion 3e on the side 3b of the upper panel shown in FIG.

In this example, the upper panel 3 is
Since it is reinforced by e, it is possible to use a thinner steel plate than the flat upper panel 3. Further, reinforcing portions 3
Since e contact each other, lateral displacement of the upper panel 3 can be prevented.

FIG. 6 is a view showing a fourth embodiment of the double floor structure, in which reference numeral W is an installation floor, 1 is a support member, 2 is a corner support column, and 3 is a top panel.

As shown in FIG. 6, the support member 1 is made of a synthetic resin, and a plurality of intermediate support columns 1a are arranged vertically and horizontally. Adjacent intermediate support columns 1a, 1a are formed by flexible connecting arms 1b.
Are integrally connected. At each of the four corners, a corner 1c is formed integrally with the adjacent intermediate support column 1a, and the support member 1 is formed in a substantially square shape. Further, a support portion 1d (corner support column 2) protruding above the intermediate support column 1a is provided integrally on the corner portion 1c, and is provided on the installation floor surface W.
A plurality of sheets are laid in a state where c is abutted.

The connecting column 7 is made of metal and has a cylindrical connecting body 7a having a downward opening, a bearing surface 7b for closing the upper part of the connecting body 7a, and an insertion hole for inserting the supporting portion 1d of the supporting member 1. 7c is provided.

FIG. 7 is a side sectional view taken along line 6B-B of FIG. 6 showing a double floor structure. As shown in FIG. 7, the support members 1 are connected by fitting the connection support members 7 to the corner gathering portions 4 where the corners 1 c of the four support members 1 laid on the installation floor W are fitted. A corner support column 2 is formed by projecting the support portion 1d on the upper surface of the connection support column 7.

Since the supporting portion 1d of the supporting member 1 is inserted through the insertion hole 7c of the connecting column 7 and its tip projects from the supporting surface 7b of the connecting column 7, the tip of the supporting portion 1d of the supporting member 1 supports the corner. It becomes the bearing surface 2b of the pillar 2 and supports the upper panel 3. Therefore, as in the first embodiment described above, the upper panel 3 is provided with the corner support columns 2 projecting above the intermediate support columns 1a.
Is supported at three points by the supporting portion 1d, so that there is no backlash.

Further, in the present embodiment, even when the intermediate support column 1a and the support portion 1d of the support member 1 made of synthetic resin are melted due to a fire or the like, the upper panel 3 made of steel plate can be used.
Is supported by the bearing surface 7a of the connecting post 7 also made of steel plate and does not fall.

In this embodiment, the connecting column 7
Without using the connecting pillars 7, a double floor can be formed without using the connecting posts 7 in a place where an evacuation route does not become an evacuation route in case of a fire or a place where there is no risk of falling of the equipment.

FIG. 8 is a side sectional view taken along the line C--C in FIG. 6 showing the double floor structure. Reference numeral 1e denotes a positioning portion integrally formed on an outer portion of the intermediate support pillar 1a located on the outer periphery of the supporting member 1, and as shown in FIG.
When the reinforcing portion 3e of the upper panel 3 comes into contact with e,
It is placed at a predetermined position.

[0031]

According to the first aspect of the present invention, since the corner supporting columns always support the three points of each corner of the substantially triangular upper surface panel, it is possible to follow the unevenness of the installation floor surface, Panels are supported without rattling.

When an excessive load is applied to the upper panel and the upper panel is bent downward, the intermediate support pillars support the upper panel, so that large deformation of the upper panel is prevented and the load resistance is good.

Further, the work can be completed simply by laying the upper panel on a plurality of support members laid on the installation floor, so that the workability is good.

Further, since the supporting member does not require many supporting portions for supporting the upper panel, a wide wiring space can be secured.

According to the second aspect of the present invention, two upper panels need only be laid once for one support member, and the workability is good.

According to the third aspect of the present invention, the strength of the side portion of the upper panel is improved by the reinforcing portion, so that the load bearing performance can be improved and the lateral displacement of the upper panel can be prevented.

According to the fourth aspect of the present invention, since the support member is formed integrally with the corner support column and the adjacent intermediate support column, the support member is simply laid on the installation floor surface, and the workability is good.

According to the fifth aspect of the present invention, strict positioning work is not required for laying the support member, and the workability is good.

According to the sixth aspect of the present invention, even when the resin support column is melted due to a fire or the like, the upper panel is retained, and a situation in which a pedestrian is injured can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a double floor structure according to a first embodiment of the present invention.

FIG. 2 is a side sectional view taken along line AA of FIG. 1;

FIG. 3 is a side cross-sectional view taken along line AA of FIG.

FIG. 4 is a partially cutaway perspective view showing a top panel according to a second embodiment of the present invention.

FIG. 5 is a partially cutaway perspective view showing a top panel according to a third embodiment of the present invention.

FIG. 6 is an exploded perspective view showing a double floor structure according to a fourth embodiment of the present invention.

FIG. 7 is a side sectional view taken along line B-B of FIG. 6;

FIG. 8 is a side sectional view taken along line CC of FIG. 6;

[Explanation of symbols]

 W Installation floor surface 1 Support member 1a Intermediate support column 1b Connecting arm 1c Corner 1d Support portion 1e Positioning portion 2 Corner support column 2a Fitting hole 2b Bearing surface 3 Top panel 3a Top surface 3b Side 3c Bevel 3d Joint deformation part 3e Reinforcement part 4 Corner gathering part 5 Cable 6 Wiring space 7 Connection post 7a Connection trunk 7b Bearing surface 7c Insertion hole

Claims (6)

[Claims] 1. A double floor structure in which an upper panel is supported via a support member laid on an installation floor surface, the support member includes a plurality of intermediate support columns arranged vertically and horizontally and four corners. The corner support is formed in a substantially square shape by a formed corner and a flexible connecting arm connecting the intermediate support columns, and the corner support protrudes above the intermediate support column. A double-floor floor provided with pillars, wherein two substantially triangular upper panels made of steel plate are supported on the corner support pillars so as to have a rectangular shape in plan view. Construction. 2. The two upper panels supported in a square shape are connected by a flexible joint deforming portion formed between opposed oblique sides. Double floor structure as described. 3. The panel according to claim 1, wherein the upper panel has a reinforcing portion whose side edge is bent downward.
Double floor structure as described. 4. The corner support pillar is formed integrally with the corner.
Double floor structure as described. 5. The corner support column has a connecting trunk portion which is cylindrical and has a lower opening, and a support surface for supporting the upper panel on the upper surface, and is adjacent to the installation floor surface. 4. The double floor structure according to claim 1, wherein the connecting trunk portion is engaged with and connected to a corner gathering portion of the four supporting members. 6. The corner support column is made of metal having a support portion integrally projecting from the corner portion and a cylindrical opening having a lower opening and an upper surface having an insertion hole through which the support portion is inserted. In the corner set portion of the four adjacent support members laid on the installation floor, the connection posts are engaged, and the support portion is connected to the upper surface of the connection post from the insertion hole. The double-floor structure according to claim 1, 2, or 3, wherein the double-floor structure is protruded.