JPH0673865A - Floor panel supporting mechanism of double flooring device - Google Patents

Abstract

PURPOSE:To curtail the number of posts for supporting floor panels so as to obtain a large space under the floor. CONSTITUTION:The end parts of a plurality of linear stringers 3 having the length of nearly twice of the length of a side of a floor panel are supported with posts 2, and a crossed stringer 4 fitted in the part surrounded with the four linear stringers 3 are fixed with auxiliary pedestals 9 having no post. Hereby, the number of the posts can do by a half of that in the conventional case, and air filters and trays can be detachably held on the flange parts 7 of the stringers horizontally projecting, because the sections of the respective linear stringers 3 and the crossed stringer 4 are formed into a hat shape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double floor device constructed by laying a plurality of floor panels at a predetermined interval from a floor slab, and more specifically, a pillar for supporting the floor panels. The present invention relates to a floor panel support mechanism for a double floor device that supports a floor panel so as to reduce the number of the floor panels and take a large space under the floor.

[0002]

2. Description of the Related Art Recently, since a plurality of office automation devices have been introduced not only in computer rooms but also in general offices, it is necessary to install a large number of communication cables and power cables on the floor. Conventionally, outlets for communication and power supply are provided on the wall etc., and it is necessary to hang the connection cord on the floor from there to the equipment installation place, but if these cords are exposed on the floor, You may pull out the connection cord with your foot while walking,
In addition, there is a risk that it may become the underlay of other equipment or that the connection cord may be disconnected when passing a dolly or the like.

Therefore, in such a department, a double floor device called a free access floor is widely used. This double floor device has, for example, one side of 150 to 100.
Prepare a plurality of quadrilateral floor panels with a thickness of 0 mm and a thickness of about 15 to 50 mm, and vertically install a plurality of columns on the floor slab at intervals corresponding to the length of one side of the floor panels. The floor panels are spread over the floor slab so as to support the corners of the four floor panels adjacent to each other. As a result, a space is created between the floor slab and the floor panel, and communication cables, power cables, distributors, devices for interfacing with the devices used, etc. are installed in the space under the floor, and the space near the installed devices is also provided. By providing an outlet on the floor panel, it is possible to prevent these cords and cables from being exposed on the floor. In addition, the floor panel is easy to put on and take off, and it is possible to sufficiently deal with a layout change after installation.

Further, an underfloor air conditioning system has been proposed which utilizes such a double floor device to blow air for air conditioning from under the floor. In this case, in order to effectively perform the air conditioning, it is necessary to hermetically bond the joint between the floor panels so that the conditioned air between the panel and the floor slab does not flow out. Therefore, conventionally, a beam called a stringer is passed between columns supporting the floor panel, and the joint portion of the floor panel is held on the stringer to prevent air leakage from the joint portion. By providing this stringer, the floor rigidity of the entire floor panel can be increased.

[0005]

However, in the conventional double floor device, since the columns are erected on the floor slab at the same intervals as the size of the floor panel, a large number of columns are required, and the space under the floor becomes narrow. I will end up. Further, each strut also requires a member such as an arm for fixing the stringer, and the strut itself is bulky, which further narrows the space under the floor. Furthermore, since the corners of each floor panel are supported by the columns, a hard walking feeling is felt.

Therefore, an object of the present invention is to enable the columns to be arranged at an interval of twice the size of the floor panel so as to secure a large space under the floor and to shorten the construction by reducing the number of columns. It is to provide a floor panel support mechanism for a double floor device that is cost effective and has an excellent walking feeling.

[0007]

SUMMARY OF THE INVENTION The present invention provides at least a floor panel support mechanism for a double floor apparatus, which is constructed by laying a plurality of floor panels on a floor slab via columns and spaced from each other. A plurality of linear stringers each having a length approximately one side of the floor panel, and a plurality of cross-shaped strings having horizontal and vertical lengths approximately twice the length of one side of the floor panel. It has a stringer and an auxiliary pedestal that is attached to a substantially central portion of the linear stringer and fixedly supports the end portion of the cross stringer, and the column is arranged to support the end portion of the linear stringer, A cross stringer is fitted in a portion surrounded by the straight stringers, and the floor panel is placed on the straight stringers and the cross stringers.

In this case, it is preferable that the straight stringers and the cross stringers have a hat-shaped vertical cross section.

[0009]

[Operation] Each strut only has to support the ends of a plurality of linear stringers each having a length approximately one side of the floor panel, and is fitted in a portion surrounded by four linear stringers. Since the cross-shaped stringers are fixed to the auxiliary pedestal without columns, the number of columns is half compared to the case of supporting the corners of each floor panel as in the past, and the underfloor space can be enlarged. , You can get a soft walking feeling. Since the abutting end of each floor panel is positioned so as to support each peripheral edge of the four floor panels by the four linear stringers and one cross stringer,
It is possible to reliably seal the gap between the contact portions of the floor panel.

Further, by forming each stringer into a hat shape, the horizontally extending flange portion of the stringer can detachably support the air filter, the tray and the like.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below.

The floor panel 1 used in this embodiment is a quadrilateral having a side of 60 cm and a thickness of about 4 cm, and a panel material made of concrete, calcium silicate or the like between the upper and lower plate materials. Or forming a large number of concavities and convexities on the lower surface plate member, fixing the tip of the convex portion to the lower surface of the upper surface plate material, and filling the above-mentioned panel material into the space composed of the upper surface plate material and the lower surface plate material. Or, it is composed of a conventionally well-known floor panel composed of aluminum die cast or steel alone. On the other hand, the columns 2 are arranged on the floor slab 10 at intervals of 120 cm, which is twice the length of the floor panel 1. A pedestal 5 for supporting the floor panel 1 is attached to the upper end of each of the columns 2 via a linear stringer 3 and a cross stringer 4 which will be described later so that the height can be adjusted as in the conventional case.

The linear and cruciform stringers 3 and 4 have a substantially U-shaped cross section and a main body portion 6 having an opening located below.
And a flange portion 7 that projects from the lower end of the main body portion 6 at a substantially right angle, and has a hat shape, and is made of a metal material such as a steel plate. The straight stringer 3 has a length that is twice the length of the floor panel 1, that is, a length slightly shorter than 120 cm, and the flange portion 7 in the central portion thereof is used.
Is formed with notches 8 cut out by a length corresponding to the width of the linear stringer 3, and an auxiliary pedestal 9 having substantially the same shape as the pedestal 5 of the column 2 is screwed in these notches 8 Fixed by. The horizontal and vertical lengths of the cross stringers 4 are slightly shorter than twice the length of the floor panel 1.

Next, the arrangement of the linear and cross stringers 3 and 4 will be described. One on the floor slab 10 is described.
Both ends of each linear stringer 3 are placed on the pedestal 5 of each column 2 arranged at intervals of 20 cm, and fixed by screws or the like. That is, the ends of the four linear stringers 3 are fixed to one pedestal 5 at intervals of about 90 °. Next, the cross-shaped stringers 4 are fitted into the respective cutout portions 8 surrounded by the four linear stringers 3 and their ends are fixed to the auxiliary pedestal 9. Hereinafter, similarly, the ends of the linear stringers 3 are fixed between the columns 2 arranged on the floor slab 10, and the cross stringers 4 are fixed to the portion surrounded by the linear stringers 3. In addition,
Although not shown, it is customary not to take a sufficient length for fitting the cross-shaped stringer 4 on the wall side, and on such a wall, the linear straight stringer 3 is attached to the pedestal 5 or the auxiliary pedestal. It can be used by cutting it to a length from 9 to the edge of the wall, and the ends of each linear stringer 3 can be supported and fixed by the column 2 only at the edge of the wall.

In this way, since the linear and cross-shaped stringers 3 and 4 are arranged on the floor slab 10 so as to support the peripheral edge of each floor panel 1, the floor panel 1 is arranged on the stringers 3 and 4.
Just lay it. Further, the floor panel 1 located near the wall may be cut into an appropriate length and fitted.

As described above, since the columns 2 are located at the corners of the floor panels 1 every other one, the number of columns 2 can be reduced by half compared to the conventional one, and the space under the floor can be made large. Not only can it be done, but the number of columns can be reduced, so that the construction process and cost can be reduced. Further, it is possible to use the flange portions 7 of the linear and cross stringers 3 and 4 to hold an air filter, and to hold a distributor or a tray of electrical equipment on the floor or a tray for accommodating interface equipment.

As shown in FIG. 1, a reinforcing pedestal 11 is fixed to the lower surface of the intersection of the cross stringers 4 to reinforce the intersection. However, when the strength of the stringer 4 is high,
It is not necessary to fix the reinforcing pedestal 11.

In the above embodiment, the floor panel 1 having a side of 60 cm has been described as an example. However, the floor panel is not limited to this size, and a floor panel having a size smaller or larger than this is also practical. Further, the case where the floor panel 1 is laid on the linear and cross stringers 3 and 4 has been described, but the floor panel 1 is mounted on the pedestal of the column as in the conventional floor panel.
Alternatively, a pin fitted in a hole provided at the corner of the stringer may be provided upright, and the pin may be projected from the hole drilled in the main body portion 6 of the linear and cross stringers 3 and 4. Further, the flange portions 7 of the linear and cross stringers 3 and 4 are fixed to the pedestal 5, the auxiliary pedestal 9 and the reinforcing pedestal 11 with screws.
Protrusions for fitting the main body portion 6 may be provided on the upper surfaces of these pedestals in a cross shape so as to be fitted and fixed thereto.

[0019]

As described above, the floor panel support mechanism of the double floor device of the present invention comprises a plurality of linear stringers having a length at least approximately one side of the floor panel and a lateral stringer. A plurality of cross-shaped stringers whose length and length in the vertical direction are approximately twice the length of one side of the floor panel, and are attached to the approximate center of the straight stringers, and fixedly support the ends of the cross-shaped stringers. It has an auxiliary pedestal, the pillar is arranged to support the end of the linear stringer, and the cross stringer is fitted in the part surrounded by the four linear stringers, and the floor panel is shaped like the linear stringer and the cross. It is placed on a stringer, and each strut supports the ends of a plurality of linear stringers each having a length approximately one side of the floor panel, and is surrounded by four linear stringers. Cross-shaped striations that are fitted into the exposed parts Since the moth need only be fixed to an auxiliary pedestal without columns, the number of columns is half compared to the case of supporting the corners of each floor panel as in the past, and the underfloor space can be enlarged, and A feeling of soft walking can be obtained. Since each floor panel has four linear stringers and one cross stringer, the stringers are positioned so as to support the peripheral edges of the four floor panels. Therefore, the lower surface of the abutting portion of the floor panel should be supported by the stringers. Therefore, the contact portion can be reliably sealed. Reducing the number of struts can shorten the construction period and reduce the construction cost.

According to the second aspect of the present invention, by making each stringer have a hat-shaped longitudinal section, an air filter is held by a horizontally extending flange portion, or a distributor or connector for electric equipment on the floor or It is possible to hold a tray that accommodates the interface device.

[Brief description of drawings]

FIG. 1 is a plan view showing a part of an embodiment of the present invention.

FIG. 2 is a vertical sectional view cut along the line AA of FIG.

[Explanation of symbols]

 1 Floor panel 2 Strut 3 Linear stringer 4 Cross stringer 5 Pedestal 6 Main body 7 Flange 8 Cutout 9 Auxiliary pedestal 10 Floor slab

Claims (2)

[Claims] 1. A floor panel support mechanism of a double floor device constituted by laying a plurality of floor panels at intervals on a floor slab via columns, at least a length of one side of the floor panel. A plurality of linear stringers having a length approximately twice, and a plurality of cross stringers each having a length in the lateral direction and a length in the longitudinal direction that is approximately twice the length of one side of the floor panel,
An auxiliary pedestal that is attached to a substantially central portion of the linear stringer and fixedly supports the end portion of the cross stringer, and the support column is arranged so as to support the end portion of the linear stringer. The floor panel of a double floor device, wherein the cross stringer is fitted in a portion surrounded by the straight stringers, and the floor panel is placed on the straight stringers and the cross stringers. Support mechanism. 2. The floor panel support mechanism for a double floor apparatus according to claim 1, wherein the linear stringers and the cross stringers have a hat-shaped vertical cross section.