JP2622648B2 - Floor panel underfloor tray - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel apparatus constructed by laying a plurality of floor panels at a predetermined interval from a floor slab, and more particularly, to a floor panel apparatus supported on the lower surface of each floor panel. The present invention relates to an underfloor tray in which cable connectors for electric equipment and equipment for interface are stored.

[0002]

2. Description of the Related Art Recently, a plurality of office automation devices have been introduced not only in a computer room but also in a general office, so that it is necessary to arrange a large number of communication cables and power cables on the floor. Conventionally, communication and power outlets are provided on the wall, etc., and it is necessary to put the connection cord on the floor from there to the equipment installation location, but if these cords are exposed on the floor, There is a possibility of pulling out the connection cord with your foot while walking,
In addition, there is a danger that the connection cord may be cut off under another device or when passing through a cart or the like.

Therefore, a double floor structure called a free access floor is widely used in such departments. This double floor structure has, for example, 150 to 100 on one side.
A plurality of quadrangular floor panels having a thickness of about 15 to 50 mm and a thickness of about 0 to 50 mm are prepared, and a plurality of columns are erected on the floor slab at intervals corresponding to the length of one side of the floor panel. The floor panels are spread over the floor slab so as to support the corners of four adjacent floor panels. As a result, a space is created between the floor slab and the floor panel, and communication cables, power cables, distributors, and equipment for interfacing with the equipment to be used are arranged in the space under the floor, and near the installed equipment. By providing outlets on the floor panel, these cords and cables can be prevented from being exposed on the floor. Further, the floor panel can be easily attached and detached, and can sufficiently cope with a layout change after laying.

Further, an underfloor air-conditioning system which uses such a double floor structure and blows air for air-conditioning from under the floor has been proposed. In this case, in order to perform the air conditioning effectively, it is necessary to make the joint of each floor panel airtight so that the conditioned air does not flow between the panel and the floor slab. Therefore, a beam called a stringer is conventionally passed between columns supporting the floor panel, and the joint of the floor panel is held on the stringer to prevent air leak from between the joints. Thereby, the floor rigidity of the entire floor panel can be increased.

On the other hand, it is necessary to protect the distributor and interface equipment from dust and the like, and it is not preferable to directly place the equipment on the floor slab, and it is difficult to perform maintenance and inspection. Therefore, using the above-mentioned stringer, an underfloor tray formed of a synthetic resin such as polypropylene having a flange formed on the outer periphery of the upper end so as to be locked to the stringer is prepared, and the flange is hung on the stringer so as to hang under the floor. It has also been proposed to support underfloor trays on floor slabs and to house equipment therein.

[0006]

However, in such an underfloor tray, there is a gap between the upper end of the underfloor tray and the lower surface of the floor panel, so that dust under the floor easily enters, and water or the like spills on the floor. When dripped under the floor from the junction of the panels, it may flow into the underfloor tray and wet the equipment, causing a failure. Furthermore, when performing underfloor air-conditioning as described above, air accompanied by a rapid temperature change at the time of starting or stopping air-conditioning enters the tray, causing dew condensation to occur in stored equipment. I will.

Accordingly, an object of the present invention is to prevent dust and water from entering by making the upper end opening of the underfloor tray densely located on the lower surface of the floor panel by a simple improvement, and to prevent a sudden temperature change due to air conditioning. To provide a floor panel underfloor tray that can accommodate equipment without being affected.

[0008]

Means for Solving the Problems To achieve the above object,
Because this invention, the corner portions of a plurality of floor panels that abut held by struts, floor panels the abutting portions of the floor panel which is adapted to support at stringer passed between struts between each strut in floor tray in the underfloor tray is projected and the tray main body whose upper surface is opened, the outer peripheral surface of the tray main body configured to be locked on said stringer
It has been a flange portion, when the flange portion is locked onto the string <br/> Nga, abuts the upper edge of the tray body to the lower surface of the <br/> floor panels, the tray body The opening of that
It is characterized by being attach to the position closed by the floor panel.

In this case, the flange portion may be locked via an elastic sealing material provided in a band shape on the stringer.

[0010]

[Action] When the flange portion of the floor tray which engages on the stringers, the upper edge of the tray body to the lower surface of the floor panel
Since it is formed at the contact position , if the upper part is covered with the floor panel, the upper end of the tray main body abuts on the lower surface of the floor panel, whereby the opening of the tray main body is formed on the floor panel. is sealed, it is possible to prevent the external dust and ambient air from entering directly into the tray body.

[0011] In addition, set the elastic sealing material on the stringer
Was the case, the elastic sealing material is pressed and deformed by the weight of the floor panel, will be the flange portion is supported in a manner that bites into the elastic sealing material within, further enhancing that the sealing of the opening of the tray body Can be.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

[0013] One side is 150 to 1000 mm and the thickness is 15
The quadrangular floor panel 1 having a thickness of about 50 mm has a panel member made of concrete, calcium silicate, or the like interposed between the upper plate member and the lower plate member, or has a large number of irregularities formed on the lower plate member. The front end is fixed to the lower surface of the upper plate, and the space defined by the upper plate and the lower plate is filled with the above-described panel material, or a conventionally known floor made of aluminum die-cast or steel alone It consists of panels.

Each floor panel 1 is laid on a floor slab 3 such that the corners of four adjacent floor panels are supported by the tips of the columns 2. This support 2 is configured such that its height can be adjusted similarly to a conventional support.
Further, since the support portion 5 of the column 2 that supports the end portion of the stringer 4 that is a beam member that supports the corners of the floor panel 1 and the joint lower surface of each floor panel 1 can also use the conventional support portion of the column, Detailed description and illustration are omitted.

The stringer 4 is made of a metal such as a steel plate or an aluminum plate, and has a hat shape having a concave portion 6 into which the support portion 5 is fitted and a flange 7 extending substantially at right angles from an opening edge of the concave portion 6. It is formed in an inverted dish shape.

The underfloor tray 8 supported on the lower surface of the floor panel 1 by the flange 7 of the stringer 4 has a size large enough to be inserted into the opening formed by the four stringers 4, as shown in detail in FIG. The tray body 9 has a box-shaped tray body 9 with an open top and a flange portion 10 integrally formed so as to protrude from the outer peripheral surface of the tray body 9. At the bottom of the tray body 9, a large number of cord insertion ports 11 are formed at appropriate intervals, each having a circular guide groove cut so as to open when pressed. The flange portion 10 is inclined so that the tip end thereof is slightly lowered , and
When the tip of the flange portion 10 is engaged on the flange 7 of the stringer 4, top edge floor panels 1 of the tray main body 9
Is formed at a position where it comes into contact with the back surface. Flange part 1
At 0, a plurality of holes 12 are formed at appropriate intervals. As shown in FIG. 1, a seal member 13 made of rubber or an elastic synthetic resin is attached to an upper edge of the tray body 9. The underfloor tray 8 is made of a synthetic resin such as polypropylene having elastic strength.

When attaching the underfloor tray 8 to the opening formed by the four stringers 4, a band-shaped sealing member 14 made of rubber or elastic synthetic resin is attached to the flange 7 of the stringer 4 in advance. This sealing material 1
The tray body 9 is inserted into the opening formed by the four stringers 4 such that the tip of the flange portion 10 of the underfloor tray 8 is positioned on the tray 4. Then, the upper surface may be closed by the floor panel 1. Although the upper end of the tray body 9 projects from the lower surface of the floor panel 1 due to the sealing material 14,
Since the sealing member 14 has elasticity and is deformed by pressing due to the weight of the floor panel 1, the floor panel 1 does not rattle, and the flange portion 10 is supported in a manner of biting into the sealing member 14. As a result, the seal during this period is completed, and the upper end of the tray body 9 is elastically pressed against the lower surface of the floor panel 1, so that the opening is firmly pressed against the lower surface. Further, since the sealing material 13 is provided on the upper end edge of the tray body 9, the sealing at the opening can be made more reliable. Therefore, the device 15 in the underfloor tray 8 can be protected from direct contact with the surrounding dust and the air for air conditioning whose temperature has rapidly changed.

Further, even if water or the like is spilled on the floor panel 1 and drops under the floor from the abutting portion of the floor panel 1, the water passes through the hole 12 of the flange portion 10 of the underfloor tray 8 and the floor slab 3 , And does not flow into the underfloor tray 8.

In the above embodiment, the sealing members 13 and 14 are used.
However, the upper edge of the tray body 9 may be elastically pressed against the lower surface of the floor panel 1 only by the elasticity of the flange portion 10.

[0020]

As described above, according to the first aspect,
According to the underfloor tray, a tray body having an upper surface opened ,
Make sure that the outer peripheral surface of the tray body is locked on the stringer .
And a Luo collision set by flange portion, when the flange portion is engaged on the stringers, the upper edge of the tray body comes into contact with the lower surface of the floor panel, the opening of the tray body whose floor panels
Because it is provided in a position to be closed at
The upper floor tray opening of the tray main body is sealed by the operation of only covered with floor panels, it is possible to prevent the external dust and ambient air from entering directly into the tray body.

Further, as described in the second aspect, by locking the flange portion via the elastic sealing material provided in a band shape on the stringer, the elastic sealing material is pressed and deformed by the weight of the floor panel. As a result, the flange portion is supported on the stringer in such a manner as to bite into the sealing material, so that the sealing of the opening of the tray body can be further enhanced .

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention.

FIG. 2 is a perspective view showing the underfloor tray in the embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 floor panel 2 support 4 stringer 5 support 6 recess 7 flange 8 underfloor tray 9 tray body 10 flange 14 sealant

Claims (2)

(57) [Claims] 1. A floor panel in which each corner of a plurality of butted floor panels is held by a strut, and the butting portion of the floor panel between the struts is supported by a stringer passed between the struts. In the underfloor tray, the underfloor tray protrudes from an outer peripheral surface of the tray main body so as to be locked on the stringer with a tray main body having an upper surface opened.
Has been a flange portion, when the flange portion is locked on the stringer, the upper edge of the tray body comes into contact with the lower surface of the floor panel, the opening of the tray body is its
Floor tray floor panels, characterized in that are attach to the position closed by the floor panel. 2. The underfloor tray of a floor panel according to claim 1, wherein the flange portion is locked via a band-shaped elastic sealing material provided on the stringer.