JP2001082751A - Heat insulated panel for floor heating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lay a hot water pipe easier, to simplify an under floor structure, to simplify design change and to improve a heating efficiency by filling the hollow of a panel main body blow molded with a plastic material with foam and laying a hot water pipe on the surface of the panel main body at the blow molding of the panel main body. SOLUTION: The inside of the hollow panel main body 1 blow molded with the plastic material is filled with foam 3 by foam molding the plastic material inside the hollow, and grooves 2 for arranging a hot water pipe 10 are formed on the surface of the panel main body 1 at the blow molding of the panel main body 1. Polypropylene, polyethylene, ABS resin, etc., are adequate as the plastic material to mold the panel main body 1. For example, the width D of the groove 2 is 9.5 mm and the outer diameter of the hot water pipe 10 arranged in the grove 2 is 10.3 mm, and the hot water pipe 10 is force fit into the groove 2. A polyethylene pipe is adequate as the hot water pipe 10 and the flexible hot water pipe is arranged by force fitting inside the groove 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel for arranging a hot water pipe for floor heating.

[0002]

2. Description of the Related Art In conventional floor heating, radiant heating called panel heating is performed, and a method is known in which a hot water pipe is buried in a floor to pass hot water. For example, FIG.
As shown in the figure, a heat insulating material 101 is installed on a concrete slab 100, a reflective material 102 is placed on the heat insulating material 101, and a lightweight concrete 104 having a hot water pipe 103 embedded therein is installed on the reflective material 102. A structure is known in which a mortar 105 is placed on a 104 and a carpet 106 is laid as a finishing material. In addition, wood-based materials, for example, a particle board panel as a base material,
It is also known that a warm water pipe is embedded in the base material.

[0003]

In the conventional hot water pipe buried type, it takes a long time to perform the construction, the cost is high, and it is almost impossible to change the arrangement of the pipes. In the case where the warm water pipe was embedded in the base material, the thermal efficiency was poor because it was a wood-based material.

Accordingly, the present invention provides an insulated panel for floor heating that facilitates the installation of a hot water pipe, simplifies the structure under the floor, allows easy design changes, improves heating efficiency, and can be constructed at low cost. The purpose is to provide.

[0005]

In order to achieve the above-mentioned object, the present invention fills a hollow body of a hollow panel body blow-molded with a resin material with a foam, and applies a foam to the surface of the panel body during blow molding. A groove for arranging a hot water pipe is formed.

[0006]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a preferred embodiment of the present invention.
FIG. 2 is a plan view of the front side, in which a resin material is foam-molded in a hollow interior of a hollow panel body 1 in which a resin material is blow-molded, and a foam body 3 is filled; The groove 2 for arranging is formed.

FIG. 2 is a side view as viewed from the upper surface of FIG. 1, and an enlarged cross section of the groove 2 is shown in FIG. In FIG. 3, the width D of the groove 2 was 9.5 mm. The outer diameter of the hot water pipe 10 provided in the groove 2 is 10.3 mm, and the hot water pipe 10 is forcibly fitted into the groove 2. As the hot water pipe 10, a pipe made of polybutene can be suitably used, has flexibility, and is disposed by being fitted into the groove 2 shown in FIG. The inside of the hollow panel main body 1 obtained by blow molding a resin material is filled with a foam 3.
By making the width D of the groove 2 slightly smaller than the outer diameter of the hot water pipe 10, the hot water pipe 10 fitted in the groove 2 is prevented from coming off.

As a resin material for forming the panel body 1, polypropylene, polyethylene, ABS resin, or the like can be suitably used. The thickness of the blow-molded panel body 1 is preferably 0.2 to 7 mm, and preferably 0.5 to 4 mm in consideration of the balance between strength and weight. The filling of the foam 3 into the hollow interior of the panel main body 1 can be carried out at the same time as the blow molding of the panel main body 1 or after the blow molding, by injecting the material of the foam. As the material of the foam 3, foams of polyurethane, polypropylene, polyethylene, polystyrene, ABS resin and the like can be suitably used. This foam 3 has a heat insulating function. The groove 2 is formed during blow molding of the panel body 1, but the shape of the groove 2 is not limited to that shown in FIG.

FIG. 4 shows that the heat insulating panel is supported on the floor slab 5 by the supporting legs 4 and the hot water pipe 10 is disposed in the groove 2, and then the pruning material 6 is provided on the heat insulating panel. 6 shows an example in which a finishing material 7 is provided on a floor 6 to form a floor. When a bolt is used as the support leg 4, a nut member screwed to the bolt can be inserted into the back surface of the panel body 1 at the time of blow molding. A bolt is screwed into the inserted nut member, and a nut member provided on the cushion rubber is also provided at the lower end side. By rotating in the direction, the distance from the floor slab 5 can be increased or decreased.

In the embodiment shown in FIG. 5, recesses 1A are formed at the four corners of the rear surface of the panel body 1, and a receiving member 4A provided at the upper end of the support leg 4 is partially fitted into the recess 1A. The panel body 1 is supported by support legs 4.
When floor heating is not required at a location adjacent to the heat insulating panel, a general floor base panel 8 may be placed on the remaining portion of the receiving plate 4A.

FIG. 6 shows the back surface of the panel main body 1. In the vicinity of the edge of the panel main body 1 on the back surface, a continuous groove 9 which is depressed inward along this edge is formed. This shows an example in which ribs (protrusions) 11 are formed. The shape and the like of the rib 11 can be freely changed.
By forming such ribs 11, the strength of the panel main body 1 can be increased. Further, by providing the groove 9, it is possible to prevent the edge of the panel main body 1 from being deformed by the secondary shrinkage of the panel main body 1 due to the heat accompanying the filling of the foam body 3. The groove 9 extends 5 mm from the edge of the panel body 1.
It is formed at a position of ２０20 mm, the depth is preferably 5 to 10 mm, and the width is preferably 5 to 10 mm.

This heat insulating panel is used by combining a plurality of heat insulating panels according to the area where floor heating is to be performed.

FIGS. 7 to 9 show examples of the direction in which the hot water flows in the hot water pipe 10 arranged in the groove 2, respectively.

Although not shown, a plywood or metal for reinforcement may be inserted into the panel body 1. Further, a plywood or the like for attaching a discard material or a finishing material may be inserted into the front or back surface of the panel body 1 at the time of molding.

[0016]

As described above, according to the present invention, the resin material is foam-molded inside the hollow panel body in which the resin material is blow-molded, and the hot water pipe is formed on the surface of the panel body during blow molding. Since the grooves for disposing are formed, if this heat insulating panel is used as a conventional floor base material and a hot water pipe is disposed in the grooves on the surface, floor heating can be easily constructed. Further, the arrangement of the hot water pipe can be easily changed. Further, since the inside of the panel body is filled with the foam, the heat insulating effect is extremely high. Further, in the case where a reinforcing rib is formed on the back surface of the panel main body, the strength of the panel main body can be improved. Further, in the case where the concave portions are formed at the four corners of the rear surface of the panel body, the concave portions can be supported by one supporting leg together with the adjacent panel using the concave portions.

[Brief description of the drawings]

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

FIG. 2 is a side view of the upper end side in FIG.

FIG. 3 is an enlarged sectional view of a groove portion.

FIG. 4 is a cross-sectional view showing an example in which a floor heating structure is constructed.

FIG. 5 is an exploded sectional view showing another example of a floor heating structure.

FIG. 6 is a diagram showing a back surface of the heat insulating panel.

FIG. 7 is a plan view showing an example of a flow of hot water in a hot water pipe.

FIG. 8 is a plan view showing another example of the flow of hot water.

FIG. 9 is a plan view showing still another example of the flow of hot water.

FIG. 10 is a sectional perspective view showing an example of a conventional floor heating structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel main body 2 Groove 3 Foam 10 Hot water pipe

Claims (3)

[Claims] 1. A hollow panel body formed by blow molding a resin material, wherein a hollow body is filled with a foam, and a groove for arranging a hot water pipe is formed on the surface of the panel body during blow molding of the panel body. Insulation panel for floor heating. 2. The heat insulation panel for floor heating according to claim 1, wherein a reinforcing rib is formed on a back surface of the panel body. 3. The heat insulation panel for floor heating according to claim 1, wherein recesses are formed at four corners of the back surface of the panel body.