JP2002333148A - Floor panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor panel, in which heat is transferred well to a room from a heating-medium circulation pipe supported on a floor panel in a free access floor. SOLUTION: The floor panel 4 measures 450 mm square, and is composed of a lower panel 8 supported peripherally with legs 10, and an upper panel 6 superposed thereon. The upper and lower panels 6 and 8 are provided with a latticed metal frame 12, a thermal insulating material 14, for example a rigid foamed polyurethane resin is filled in the lattice, if required. Aluminum pipe-receivers 20, 22 of almost semicircular section are provided in the joint of upper and lower panels, in which a heating-medium circulation pipe 24 (a branched polyethylene-made pipe, etc.), is held. A radiation sheet 26 is integrated with an upper pipe receiver 20, and the sheet 26 is exposed on the upper face of the upper panel 6. A flange 28 is formed integrally externally with the side edge of the upper and lower pipe-receivers. When the upper and lower flanges 28 are stacked, the upper and lower flanges 28 are brought into intimate contact with each other. In order to prevent the upper and lower pipe receivers from going off cernters, a protrusion 30 is provided downward to the upper flange 28, and a hole 32 for insertion thereof is provided to the lower flange 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to floor heating and cooling of a free access floor.

[0002]

2. Description of the Related Art Recently, free access floors have been widely used in office buildings. This means that the floor panels with legs can be removed and laid out freely on the concrete floor, and the wiring around the computer crawls under the floor panel, so that people can come and go without being bothered by electric wires. It was made possible.

[0003] On the other hand, floor heating is warm at the feet and is popular in office buildings. The floor heating that is conventionally performed on the free access floor includes an ondol type in which warm air is introduced into the space where electric wires pass under the floor panel, but this method has a large pressure loss of hot air, There is a disadvantage that a large blower fan is required.

In some cases, a groove is provided on the upper surface of the floor panel, and a heat medium flow pipe (usually a polyethylene pipe or the like) through which hot water (or cold water) passes is fitted into the groove. In this device, the surface of the groove and the upper part of the groove are covered with a heat sink so that heat is transmitted from the heat medium distribution pipe to the heat sink and further from the heat sink to the room. There is a problem that the adhesion between the heat sink and the heat sink tends to be insufficient, and the heat transfer is not good.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to transfer heat (hot or cold) from a heat medium flow pipe through which hot water (or cold water) flows to a room on a free access floor. And

[0006]

Means for Solving the Problems A floor panel detachably laid on a concrete floor is constituted by a lower panel with legs and an upper panel superposed thereon. On the mating surfaces of the upper and lower panels, metal pipe receivers having a substantially semicircular cross section for sandwiching the heat medium flow pipe are provided in cooperation.
These pipe receivers are integrally formed with flanges extending outward from side edges so that the upper and lower flanges are in close contact with each other when the heat medium flow pipe is sandwiched. Also,
A metal radiator plate exposed on the upper surface of the upper panel is extended from the upper pipe receiver (claim 1).

Since the heat medium distribution pipe is sandwiched between the upper and lower pipe receivers, the heat medium distribution pipe and the upper and lower pipe receivers are in close contact with each other, and the heat of the heat medium distribution pipe is reliably transmitted to the pipe receiver. In addition, since the flanges extending outward from the side edges are formed integrally with the upper and lower pipe receivers, the upper and lower flanges are in close contact with each other, and the heat transmitted from the heat medium distribution pipe to the lower pipe receiver is transferred to the upper pipe receiver. It is definitely communicated. In this way, the heat transmitted to the upper pipe receiver is transmitted to the radiator plate to warm the room. Thus, according to the present invention, hot water floor heating with good thermal efficiency can be realized with the free access floor.

A projection can be provided on one of the upper and lower flanges, and a recess or a hole into which the projection fits can be provided on the other side (claim 2). It is possible to reliably hold the medium distribution pipe.

[0009] Instead of providing a flange, the edge of one pipe receiver may be fitted into the other pipe receiver. Also in this case, the upper and lower pipe receivers are in close contact with each other, and the heat transmitted from the heat medium distribution pipe to the lower pipe receiver is reliably transmitted to the upper pipe having a heat sink.

In order to pass electric wires around the computer into the space below the floor panel, legs may be provided for the lower panel. Instead of providing the legs, the frame of the lower panel is extended downward and extended. The portion may be provided with a hole through which the electric wire passes (claim 4).

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a floor panel 4 laid on a concrete floor 2 has a length of 450 mm.
Lower panel 8 that is four sides in size and is supported by legs 10 around it
And an upper panel 6 superposed thereon. Each of the upper and lower panels 6 and 8 includes a metal frame 12 arranged in a lattice shape, and each lattice is filled with a heat insulating material 14, for example, a hard foamed polyurethane resin as needed.

The body of the leg 10 is a bolt, which is screwed to a nut 16 fixed to a corner of the lower panel 8. Reference numeral 18 denotes a rotation preventing nut. When adjusting the length of the leg 10, the upper panel 6 is peeled off and the bolt is turned with a screwdriver.

At the mating surfaces of the upper and lower panels, aluminum pipe receivers 20 and 22 having a substantially semicircular cross section are provided, and a heat medium flow pipe 24 (such as a cross-linked polyethylene pipe) is sandwiched therebetween. A radiator plate 26 is formed integrally with the upper pipe receiver 20, and the radiator plate 26 is exposed on the upper surface of the upper panel 6. As shown in FIG. 3, flanges 28 are integrally formed outward on the side edges of the upper and lower pipe receivers, and when the upper and lower panels are stacked, the upper and lower flanges 28 are brought into close contact with each other. A lower projection 30 is provided on the upper flange 28 so that the center of the upper and lower pipe receivers does not shift, and a hole 32 into which the lower projection 30 fits is made in the lower flange 28.

The upper pipe receiver 20 and the heat sink 2 in FIG.
6 were connected by the vertical wall 34 and the connecting member 36, but as shown in FIG.
6 may be directly connected. Also, as shown in FIG.
The socket 38 may be extended downward from the upper pipe receiver, and the lower pipe receiver may be inserted therein. Further, the convex portion 40 and the concave portion 42 into which the convex portion 40 fits may be provided in the lower pipe receiver on the socket side.

As shown in FIGS. 1 and 2, the upper and lower pipe receivers 20 and 22 are divided into three in the longitudinal direction, and each is accommodated in a corresponding lattice. The pipe receivers 20, 22 are thermally separated from the metal frame 12 of the panel.
For this reason, the frame 12 is provided with a notch 46 larger than the pipe receiver, and a spacer 44 made of a material that is difficult to conduct heat is interposed between the end of the pipe receiver and the frame.

The lower panel 8 is filled with the heat insulating material only in the grid having the pipe receiver, and the other grids are left empty. Using this vacant grid, wires are pulled out from under the floor panel. The upper panel 6 is entirely filled with a heat insulating material,
When pulling out the wire, make a hole in the heat insulating material and pull it out from the hole.

At the time of installation, floor panels 4 are laid on the concrete floor 2 without gaps, and electric wires 48 are passed between the concrete floor and the lower panel. The heat medium distribution pipe 24 is fitted into the pipe receiver 22 of the lower panel 8 so as to cover the upper panel 6. After the heat medium distribution pipes are thus completed, a floor finishing material 50, for example, a carpet, is laid on the floor panel 4 to complete the process.

In such a configuration, the heat medium flow pipe 24 is sandwiched between the upper and lower pipe receivers, and the upper and lower pipe receivers 20 and 22 are in close contact with the flanges 28. When hot water (cold water in summer) is sent to the heat medium distribution pipe 24 in this way, the heat of the pipe 24 is transmitted to the pipe receivers 20 and 22 without waste, and the heat is further transmitted to the radiator plate 26. Warms the room.

When cooling is performed by sending cold water to the heat medium distribution pipe 24 in the summer, dew condensation may occur in the heat medium distribution pipe.
Preferably, the temperature is kept at about 5 to 7 ° C. lower than room temperature.

In the above embodiment, legs are provided on the lower panel in order to secure a space for passing electric wires under the floor panel. FIG. 4 shows a case in which a leg is not provided, but extends below the frame 12 on the outer periphery of the lower panel 8, a hole 52 is formed in the extending portion 51, and the electric wire 4 is inserted into this hole.
8 may be passed. The upper panel to cover this
Same as the previous one.

[Brief description of the drawings]

FIG. 1 is a perspective view of floor panels laid out. The front panel has the upper panel removed.

FIG. 2 is a sectional view of a floor panel.

FIG. 3 is a partial perspective view of upper and lower pipe receivers.

FIG. 4 is a perspective view of a floor panel (only a lower panel) showing another embodiment.

FIG. 5 is a sectional view of a pipe receiver showing another embodiment.

[Explanation of symbols]

 2 Concrete floor 4 Floor panel 6 Upper panel 8 Lower panel 20 Upper pipe receiver 22 Lower pipe receiver 24 Heat medium flow pipe 26 Heat sink 28 Flange 30 Projection 32 Hole 48 Electric wire 51 Frame extension 52 Hole

Claims (4)

[Claims] 1. A floor panel which is detachably laid on a concrete floor is composed of a lower panel with legs and an upper panel which is superimposed on the lower panel with legs. A metal pipe receiver having a substantially semicircular cross section for holding the pipe is provided, and a flange extending outward from a side edge is integrally formed on each of these pipe receivers. A floor panel in which the flanges are in close contact with each other and a metal heat sink is extended from the upper pipe receiver so as to be exposed on the upper surface of the upper panel. 2. The floor panel according to claim 1, wherein one of the flanges abutting on each other has a projection, and the other has a recess or a hole into which the projection fits. 3. The floor panel according to claim 1, wherein instead of providing the flange, the edge of one pipe receiver fits into the other pipe receiver. 4. The floor panel according to claim 1, wherein, instead of providing the legs, a frame of the lower panel is extended downward, and a hole for passing an electric wire is provided in the extended portion. .