JPH05163826A - Heat insulating board - Google Patents

Abstract

PURPOSE:To increase heat insulating effect by an heat insulating board utilizing a space between sleepers. CONSTITUTION:A heat insulating board 3 is a board in which a glass wool 4 on which an adhesive is coated is laminated in the direction of thickness and heated to form in a plate, and composed of an upper and lower sections. The upper half of it is made at the same height as before, i.e., at the roughly the same height as a joist, and the thickness of the lower half is set at any one according to a heat insulating effect to be required. Then angled notches 7 are formed at the ends of the upper and lower halfs, respectively. The half of these notches 7 is hung on the upper surface of a sleeper 1 to make the ends of the adjacent heat insulating boards 3 in close contact with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating board formed by hardening glass wool or the like into a plate shape, and more particularly to a heat insulating board for heat insulation of a floor.

[0002]

2. Description of the Related Art In cold regions and the like, as shown in FIG. 6, joists 101 are laid across in a direction orthogonal to the daiiki 100, and the heat insulating board 10 is placed on the daiiki 100 between the joists 101.
2 is placed to insulate the floor.

FIG. 7 is a graph showing the relationship between the heat conductivity and the density of a heat insulating board made of glass wool. From this graph, it can be seen that as the density increases up to about 20 kg / m ³ , the thermal conductivity decreases and the heat insulating effect increases. However, if the density exceeds 30 kg / m ³ , further increase in the density cannot be expected to improve the adiabatic efficiency. Therefore, the density of the heat insulating board has been conventionally set to ³⁰ to 40 kg / m ³ .

[0004]

As described above, in the conventional case, since the heat insulating board is placed on the large pull between the joists, the thickness of the heat insulating board is made substantially equal to the height of the joist. .. In other words, if the thickness of the heat insulation board is made larger than the height of the joists, the upper part of the heat insulation board will protrude and the floor board (finishing material)
The thickness of the heat insulation board is limited because it will hinder the installation of the heat insulation board. In addition, as described above, since the density of the heat insulating board currently used is 30 to 40 kg / m ³ , the heat insulating effect cannot be enhanced without increasing the thickness.

Therefore, in a cold region or the like, a receiving material such as a plate, a net, or a sheet is provided under a large pull, and another heat insulating material having a relatively small density is put on the receiving material to construct two layers. However, this method is laborious and laborious.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention comprises a heat insulating board composed of an upper half portion which is located above the Daihiki and a lower half portion which is located between the Daihiki, and the heat insulating board. An angle-shaped notch was formed at the end of which the large pulling corner was fitted.

[0007]

Operation: The joists are crossed over the Daihiki, and then the heat insulating board is placed on the Daihiki between the joists so that the notches are fitted in the corners of the Daihiki.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a perspective view of a state in which the heat insulating board according to the present invention is placed on the Daihiki, and FIG. 2 is a view taken in the direction of the arrow A in FIG. 2 is spanned, and the heat insulating board 3 is placed on the Daihiki 1 between the joists 2.

The heat insulating board 3 is formed by stacking glass wool 4 coated with an adhesive in the thickness direction and heating it into a plate shape, and a moistureproof layer 5 is provided on the upper surface. If it is necessary to further improve workability and waterproofness during construction, a moisture-permeable and waterproof protective layer 6 may be provided on the lower surface.

Here, as the moisture-proof layer 5, aluminum foil, aluminum vapor-deposited polyethylene film, aluminum foil kraft paper, asphalt-coated kraft paper, polyethylene film or the like is used, and as the protective layer 6, nonwoven fabric or paper is used.

The heat insulating board 3 comprises an upper half portion 3a and a lower half portion 3b. The upper half portion 3a has the same height as the conventional one, that is, the height of the joist 2, and the thickness of the lower half portion 3b is required. It is set arbitrarily according to the adiabatic effect. Further, the length of the heat insulating board 3 is set to be slightly longer than the dimension between the large pulls 1, 1.
For example, if the dimension between the large hauls 1 and 1 is 910 mm, the length of the heat insulating board 3 is set to 912 mm, and the heat insulating boards 3 ... Are densely mounted on the large haul 1.

Angled notches 7 are formed at the ends of the upper half 3a and the lower half 3b. This notch 7
Is set so that it hangs halfway on the upper surface of the large haul 1 so that the ends of the adjacent heat insulating boards 3 come into close contact with each other.

The notch 7 is formed on site or the like by the cutter 10 shown in FIG. That is, the guide plate 1 of the cutter 10
1 is applied to the side surface of the heat insulating board 3, the guide plate 12 is applied to the upper surface of the heat insulating board 3, and in this state, the cutter 10 is pulled in the direction perpendicular to the paper surface to remove the corners with the blades 13 and 14 whose tips are orthogonal to each other to make a notch Form. Here, since the heat insulating board 3 is formed by laminating and hardening fibers in the thickness direction, cutting with the blade 13 has less resistance but is difficult to cut accurately. Therefore,
In the process of continuously manufacturing the heat insulating board 3 in a strip shape,
Cutting devices may be provided on both sides of the transport line of the heat insulating board, and a groove for receiving the blade 13 may be formed in advance on the side surface of the heat insulating board so that the blade 13 functions as a guide when the notch 7 is formed.

FIG. 4 is a front view of a heat insulating board according to another embodiment. In this embodiment, the surface of the angled notch 7 is impregnated with a resin to form a hard layer 8 to improve the strength of the end portion. The height is increased and the fitting into the Daihiki 1 can be done smoothly.

FIG. 5 is a perspective view of a heat insulating board according to still another embodiment. In this embodiment, the length of the heat insulating board 3 is made twice as long as that of the heat insulating board, and the large drawing 1 is provided on the lower surface of the center. A channel-shaped notch 9 to be fitted is formed. With such a shape, it is possible to shorten the time required for the work of fitting into the haul.

[0016]

As described above, according to the present invention,
An angle where a heat insulating board is integrally configured in the upper half part that is above the Daihiki and the lower half part located between the Daihiki, and the corners of the Daihiki fit in the ends of the upper half part and the lower half part. Since the notch is formed, the thickness of the heat insulating board can be secured in the lower half portion, and a sufficient heat insulating effect can be exhibited without protruding from the joist. Further, since the notch is formed, positioning during the construction is easy, and there is no fear that the heat insulation board will be displaced after the construction.

Furthermore, by applying a resin material such as an adhesive material to the surface of the angled cutout, the fitting at the time of construction can be facilitated and the end portion of the heat insulating board can be prevented from being bent or bent.

[Brief description of drawings]

FIG. 1 is a perspective view of a heat insulating board according to the present invention placed on a large pulling board.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is an explanatory view of a step of forming a notch

FIG. 4 is a front view of a heat insulating board according to another embodiment.

FIG. 5 is a perspective view of a heat insulating board according to another embodiment.

FIG. 6 is a perspective view of a conventional heat insulating board.

FIG. 7 is a graph showing the relationship between the density of the heat insulation board and the thermal conductivity.

[Explanation of symbols]

1 ... Daihiki, 2 ... Joist, 3 ... Insulation board, 3a ... Insulation board upper half part, 3b ... Insulation board lower half part, 7 ... Angle-shaped notch.

Claims (2)

[Claims] 1. A heat insulating board placed on a large floor of a building floor, wherein the heat insulating board comprises an upper half portion above the large pull and a lower half portion located between the large pull and further heat insulating. An insulating board characterized in that an angle-shaped notch is formed at the end of the board into which a large-pitch corner is fitted. 2. The heat insulating board according to claim 1, wherein the surface of the angled notch is impregnated with a resin material.