JPH08108464A - Heat insulating panel - Google Patents

Abstract

PURPOSE: To obtain a heat insulating panel having flexibility, strong against load applied from above and not almost requiring on-the-spot construction for arranging the panel on ground surface. CONSTITUTION: A hollow heat insulating panel is integrally molded by blow molding and having a large number of reinforcing ribs 2 connecting opposed walls and partitions 3a(T-E-...L-X, U-N, V-P, W-S) demarcating forward water channels and return water channels in the panel. The reinforcing ribs are arranged linearly in a large number of parallel rows so as to provide a predetermined distance between the ribs and groove-shaped dents going toward one wall from the other wall are formed so as to connect the reinforcing ribs and a part of them is bonded to the other wall under pressure to constitute the linear parts (E-F, G-H, I-J, K-L) of the partitions 3a and the remaining part of them constitutes mere groove-shaped dents. These groove-shaped dents impart flexibility to the heat insulating panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulation panel which is mainly installed outdoors on the ground and can be suitably used as a hotbed for melting snow and raising seedlings.

[0002]

2. Description of the Related Art As a conventional heat insulation panel, a hollow heat insulation panel integrally formed by blow molding and having a water channel inside, or a heat insulation panel in which a copper pipe is embedded in a groove of a panel made by hardening a rubber chip The panel is known.
However, since the former lacks flexibility, there is a problem that when the ground is uneven, it runs poorly along the ground and floats in a recess, which causes damage due to the load from above. Although it is often used because it is strong against load, it takes a lot of time and labor for construction, and there is a problem that it is difficult to reduce costs because the proportion of on-site construction is very large.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the conventional heat insulation panel, and it is cost-effective blow molding and has flexibility and a load from above. The purpose is to obtain a heat insulation panel that is strong against electricity and requires almost no on-site construction to be installed on the ground surface.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a hollow heat insulation panel integrally formed by blow molding and provided with a plurality of reinforcing ribs for connecting between opposing walls and a partition for defining a water channel therein. The partition is such that the bottom portion of the groove-shaped indentation from one wall toward the other wall reaches the other wall and is crimped to the other wall, most of which consists of straight line portions parallel to each other, In addition, it is characterized in that a large number of groove-shaped recesses extending from the one wall toward the other wall and not reaching the other wall are formed in parallel with the straight line portion of the partition.

In the heat insulating panel, the reinforcing rib has a dented portion which continuously extends from the one wall toward the other wall, the bottom portion of which reaches the other wall and is crimped to the other wall. In that case, the reinforcing ribs are linearly connected at a predetermined distance and arranged in parallel in multiple rows, and in each row of the reinforcing ribs, one of the above-mentioned one of the reinforcing ribs is connected to each other. A groove-shaped recess is formed from the wall toward the other wall, a part of the groove-shaped recess forms a straight line portion of the partition, and the remaining part forms a groove-shaped recess that does not reach the other wall. What is done is mentioned as a suitable specific aspect. Further, the water channel is composed of two independent water channels, each water channel has an independent doorway, in that case, the flow area of one water channel is formed larger than the flow area of the other water channel, It is also preferable that the water channel is one continuous water channel, in which case the water channel is composed of an outward path and a return path formed by folding back, and the circulation area of the return path is formed larger than the circulation area of the outward path. It is mentioned as a specific embodiment.

[0006]

In the above heat insulating panel, the bottom portion of the groove-shaped recess extending from one wall to the other wall is welded to the other wall to form a partition, and further, the groove-shaped recess is formed on the one wall. Since a large number are formed in parallel with the partition, it is easy to bend in the forward and reverse directions along those grooves, and has the flexibility to follow the unevenness of the ground. In addition, the partition having the above-described structure has the function of increasing the strength against a load from above, like the reinforcing rib. Other effects of the present invention will be described in the following examples.

[0007]

Embodiments of the present invention will be described below with reference to FIGS. The heat insulation panel of this embodiment is shown in FIGS.
As shown in FIG. 1, it is a hollow panel integrally formed by blow molding, and one wall 1 has a large number of reinforcing ribs 2.
A groove-shaped recess 3 formed so as to connect each of the reinforcing ribs 2 with the circular recess formed by is exposed, and the other wall 4 has a substantially planar shape.

As shown in FIG. 3, the reinforcing rib 2 has an indented shape which continuously extends from one wall 1 toward the other wall 4, and the bottom portion thereof reaches the other wall 4 and the other wall 4 is formed.
In contrast, they are crimped to each other, and are arranged linearly at a predetermined distance (upper and lower in FIG. 1) and arranged in parallel in multiple rows (left and right in FIG. 1). Note that such a reinforcing rib 2 is disclosed in, for example, Japanese Patent Laid-Open No. 6-17923.
It can be formed by the method described in Japanese Unexamined Patent Publication No.

The groove-shaped recess 3 is formed so as to connect the reinforcing ribs 2 which are linearly connected at a predetermined distance, and one wall 1 to the other wall 4 as shown in the cross section of FIG.
Is formed toward. In addition, as for the part 3a of the groove-shaped depression 3 (range of E to F, G to H, I to J, and K to L in FIG. 1), the bottom portion thereof reaches the other wall 4 and the other wall. It functions as a partition that defines the water channel by crimping to 4 (hereinafter, the groove-shaped depression that is crimped to the other wall in this way is referred to as partition 3a, and is simply a groove-shaped depression that is not crimped to the other wall. Differentiate from 3).

The partition 3a is also formed in the direction perpendicular to the row of the groove-shaped depressions 3 (F to G, HI to I in FIG. 1).
J to K) and is also formed between the sidewalls (also E to T and M).
-U, Q-V, R-W, L-X), these continuous partitions 3a (T-E-F-G-H-I-J-K-L-X,
(U-M-N, V-Q-P, W-R-S) demarcates a forward water channel 5 indicated by white arrows a to j and a return water channel 6 indicated by arrows k to u in the panel. (See FIG. 5). In addition, the entrances and exits 7 to 1 of these waterways 5 and 6 running in parallel.
Water pipes 7a to 10a are attached to 0, and water can be independently circulated in the water channels 5 and 6, respectively.

The required number of heat insulation panels are arranged on the ground with the flat side having good heat conduction facing upward, and for example, the water pipes of each panel are connected by a rubber hose or the like so that hot water flows from the inlet 7 of the panel at the starting end to the water passage 5 on the outward path. Enter, pass through the waterway 5 on the forward side of each heat insulation panel, enter the waterway 6 on the return path at the end panel, pass through the waterway 6 on the return path side of each heat retention panel, and exit 1 of the panel at the start end
Used as discharged from 0. While the temperature of the hot water gradually decreases while flowing through the water channels 5 and 6, in this heat insulation panel, the distribution area of the outward side water channel 5 is made smaller than the distribution area of the return side water channel 6, so The speed of the hot water is high, and hot water can be supplied to the distant panel before the temperature drops so much, and the heat radiation amounts of the outward water passage 5 and the return water passage 6 are equalized, and each heat insulation panel is arranged as described above. The connection also equalizes the heat radiation amount of each heat insulation panel.

In this heat insulating panel, groove-shaped depressions 3 are formed linearly and in a large number of rows on one wall 1, and the parison extends on the side of the wall 1 including the groove-shaped depressions 3 during the blow molding process. Since the groove-shaped dent 3 acts as an expansion joint because it is slightly thin, and most of the partition 3a is also formed so as to be continuous with the line of the groove-shaped dent 3, so that the heat insulation panel is It is easy to bend in the forward and reverse directions along the groove-shaped dent 3, and for example, as shown in FIG. 6, even if there is a slight step on the ground surface, it can be made to follow the ground surface by placing a little embankment 11. In addition, the laying of the heat insulation panel is as simple as filling the stepped portion as needed, lining up the necessary number of heat insulation panels, and connecting each water pipe with a rubber hose, which does not require any on-site construction. It does not take time to close the laid heat insulation panel.

In the above embodiment, the heat retaining panel is shown in which two independent water channels are formed in the panel, but the water channel in the panel may be one continuous water channel. For example,
In the heat insulation panel of FIG. 5, if the inlets and outlets 8 and 9 are not provided and a part (L to X) of the partition 3a is not formed, the water channel is the forward water channel 5 and the return water channel 6 formed by folding back. It will be continuous. That is, the hot water is at the inlet 7
The water enters the waterway 5 on the outward path, enters the waterway 6 on the return path at the end thereof, and is discharged from the outlet 10. The heat insulation panel of the above-mentioned embodiment is suitable for use by connecting a plurality of the heat insulation panels, but such a water passage in the panel which is one continuous water path is suitable for use alone.

[0014]

EFFECTS OF THE INVENTION The heat insulating panel of the present invention has a large number of reinforcing ribs and is strong against the load from above, and is flexible due to the many groove-shaped depressions formed in parallel with the partition of the water channel. Since it runs well, it is less likely to be damaged and has the advantage that it does not require any on-site work for installation on the surface of the earth.

[Brief description of drawings]

FIG. 1 is a bottom view of a heat insulating panel according to an embodiment.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the same.

4A is a sectional view taken along line AA of FIG. 1, FIG. 4B is a sectional view taken along line BB, and FIG. 4C is a sectional view taken along line DD of FIG.

FIG. 5 is an explanatory diagram showing partitions and water channels of the heat insulation panel of the example.

FIG. 6 is an explanatory diagram when the heat insulation panel of the embodiment is laid on the ground surface.

[Explanation of symbols]

 1 One wall 2 Reinforcing ribs 3 Groove-shaped depression 3a Groove-shaped depression (partition) 4 Other wall 5 Outgoing side water channel 6 Returning side water channel 7-10 Inlet / outlet 7a-10a Water pipe

Claims (7)

[Claims] 1. A hollow heat insulation panel integrally formed by blow molding and provided with a plurality of reinforcing ribs for connecting between opposing walls and a partition for defining a water channel inside, wherein the partition is one wall. A bottom portion of a groove-shaped indentation extending from the other wall to the other wall and crimping to the other wall, most of which is composed of straight line portions parallel to each other. A heat insulation panel, characterized in that a plurality of groove-shaped recesses extending from a wall toward the other wall and not reaching the other wall are formed in parallel with a straight line portion of the partition. 2. The reinforcing rib is such that a bottom portion of a recessed portion which continuously extends from the one wall toward the other wall reaches the other wall and is crimped to the other wall. The heat insulation panel according to claim 1, wherein: 3. The reinforcing ribs are linearly connected at a predetermined distance and are arranged in parallel in multiple rows, and in each row of the reinforcing ribs, one of the walls is connected to the other of the reinforcing ribs so as to connect the reinforcing ribs. A groove-shaped recess toward the wall is formed, and a part of the groove-shaped recess forms the straight line portion of the partition, and the remaining part forms the groove-shaped recess that does not reach the other wall. The heat insulation panel according to claim 2, wherein: 4. The heat insulation panel according to claim 1, wherein the water channel comprises two independent water channels, and each water channel has an independent entrance / exit. 5. The heat insulation panel according to claim 4, wherein the distribution area of one of the water channels is larger than that of the other channel. 6. The heat insulation panel according to claim 1, wherein the water channel is one continuous water channel. 7. The heat insulation panel according to claim 6, wherein the water channel is composed of an outward route and a return route formed by folding back, and a circulation area of the return route is larger than a circulation area of the outward route.