JPH0539428Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to heat insulation panels used for, for example, walls and partitions of prefabricated refrigerators, warehouses, and buildings. This invention relates to the improvement of a heat insulating panel consisting of a face plate, a connecting frame member attached to the edges of these face plates, and an insulating core material filled with foam in the space constituted by the face plate and the connecting frame member. It is something.

[Prior Art] As shown in FIG. 6, a conventional heat insulating panel of this type has a substantially right-angled bent piece b formed on one side of a surface plate a, and a concave line c or a convex line d for connection. A locking groove f into which the above-mentioned bent piece b is fitted is formed in the connecting frame material e having As shown in FIG. A folded edge h that projects inwardly of the panel is provided, and the connecting frame e is provided with a recessed line i having a semicircular cross section or a protruding line j protruding with a semicircular cross section to fit into the recessed line i. The folded edge h is fixed to a step k provided on a connecting frame material e having a concave strip i, or the folded edge h is fixed to a stepped portion k provided on a connecting frame material e having a convex strip j. In addition, as shown in FIG. It is attached to the other surface plate a by fitting into a groove n formed in the material e, and at least a pair of opposing bent edges m are formed with a gently curved portion o facing outward in cross section. A device is known in which the device is attached by a snap engagement between a bent edge m and an outwardly projecting shoulder portion p formed on a frame member e (see Japanese Utility Model Publication No. 59-41090).

[Problems to be solved by the invention] However, among the conventional insulation panels, the sixth
In the case shown in the figure, a dimensional error q tends to occur between the bent piece b of the surface plate a and the locking groove f of the connecting frame e.
In addition, there is a problem that it is troublesome to set the frame material e during production, and the engagement between the connecting frame material e having grooves i and the folded edge h of the surface plate a is compared with that shown in Fig. 7. Connecting frame material e that is difficult to target and has protrusions j
There is a problem in that it is difficult to engage the folded edge h of the surface plate a, and dimensional errors are likely to occur as shown in FIG. 6 above, and furthermore, setting the frame material e during production is complicated There was also this problem. Further, in the case shown in FIG. 8, since the frame material e is asymmetrical, there is a problem that it is inconvenient to handle not only during production but also in other cases.

This idea was devised in view of the above circumstances, and as a means to solve the above technical problems, it was designed to facilitate the setting of the surface plate and the connecting frame material, improve the dimensional accuracy of both, and The object of the present invention is to provide a heat insulating panel that can reduce the amount of heat and simplify the structure.

[Means for Solving the Problems] In order to achieve the above object, the heat insulating panel of this invention includes a pair of face plates, a connecting frame member attached to the edges of these face plates, and a pair of face plates. A heat insulating panel is made up of a heat insulating core material foamed and filled into a space formed by a connecting frame material, and a connecting groove or protrusion is formed on the outer surface of the connecting frame material. A folded edge is provided on at least one opposing side of the pair of face plates, the tip of which protrudes inward from the panel, and the connecting frame is fitted from the outside between the folded edges of the face plate. At the same time, the tips of the legs are formed with protrusions that engage with the tips of the folded edges, and the tips of the legs are connected to each other to form the connecting recess. It is made up of strips.

In this invention, it is also possible to make the end sides of the legs formed on the folded edges and the connecting frame material narrowly inclined with respect to the center plane in the thickness direction of the panel, and in such a case, it is possible to make the ends of the legs formed on the folded edge and the connecting frame material more narrowly inclined with respect to the center plane in the thickness direction of the panel. This is preferable in that it can be easily set with the connecting frame material.

[Effect] The above technical means works as follows.

With a pair of face plates facing each other at a predetermined distance, when a connecting frame material is inserted between the face plates from the outside, the legs of the frame material elastically engage between the folded edges of the face plates. Since the protrusion on the leg end side snaps into engagement with the end of the folded edge, the surface plate and the connecting frame member can be easily set. Then, due to the foaming pressure of the insulating core material, the protrusions of the frame material are reliably engaged with the folded edges, so that the folded edges of the top plate and the frame material come into close contact, resulting in a strong connection.

[Example] An example of this invention will be described below based on the drawings.

FIG. 1 is a perspective view of a first embodiment of the heat insulating panel of this invention, and FIG. 2 is a sectional view of the first embodiment.

The heat insulating panel of this invention consists of a pair of face plates 10
, a connecting frame member 20 attached to the edge of these surface plates 10 , and a connecting frame member 20 between the above-mentioned surface plate 10 and the connecting frame member 20 .
and an insulating core material 30 that is foam-filled into the space formed by

In this case, the surface plate 10 is formed of a metal plate such as aluminum, and at least one opposing side of the surface plate 10 is formed with a substantially L-shaped folded edge 12 whose tip protrudes inward from the panel. has been done. The connecting frame member 20 is made of synthetic resin such as vinyl chloride, and its structure includes an abutting piece 22 that abuts the connecting end surface of the folded edge 12 of the top plate 10 and a connecting recess. Article 24
Alternatively, the contact piece 22 is formed into a substantially hat-shaped cross section with a protrusion 26, and a surface plate 10 is provided on the inner surface of the contact piece 22.
A leg 28 is formed which elastically engages with the folded edge 12, and a protrusion 29 which engages with the tip of the folded edge 12 is formed on the outside of the tip of the leg 28.

In this case, in the connecting frame member 20 having the connecting grooves 24, the connecting grooves 24 are formed by connecting the tips of the legs 28 that protrude inward from the inner surface of the abutting piece 22 to the inside of the panel. 24 is formed, and the distal outer surface of the groove 24, that is, the leg 2
A protrusion 29 is formed on the outer surface of the distal end of 8 to be engaged with the distal end of the folded edge 12.

Therefore, since the legs 28 also serve as the concave strips 24 for connection, it becomes easy to apply to thin heat insulating panels, and the frame material 20 can be easily formed.
The number of parts can be reduced.

Surface plate 10 and frame material 20 configured as described above
A heat insulating core material 30 such as polyurethane foam or phenol foam is foamed and filled in the space formed between the two to form a heat insulating panel.

FIG. 3 is a sectional view showing a second embodiment of this invention, in which the heat insulating panels are connected to each other using a connecting member 40. That is, the folded edge 12 of the surface plate 10 constituting the connected heat insulation panels
A connecting frame member 2 having connecting grooves 24 on each side.
This is a case where, after engaging the legs 28 of 0 and locking the protrusions 29, the connecting member 40 is fitted between the grooves 24 of both frame members 20 to connect both heat insulation panels. .

Note that in the second embodiment, other parts are the same as those in the first embodiment, so the same parts are given the same reference numerals and the explanation thereof will be omitted.

FIG. 4 is a sectional view showing a third embodiment of this invention, in which the surface plate 10 and the connecting frame member 20 can be engaged more easily. That is,
By forming the tip side of the folded edge 12 of the surface plate 10 and the tip side of the legs 28 of the connecting frame member 20 to be narrowly inclined with respect to the center plane in the thickness direction of the panel, and to be able to engage with each other, Surface plate 10
This is a case where the engagement between the frame member 20 and the connecting frame member 20 is made easier. In this case, a small convex line 24a may be provided protrudingly on the bottom surface of the concave line 24 for connection, and a small convex line 26a that fits with the small convex line 24a may be formed on the tip end surface of the convex line 26 for connection. This is possible, and by configuring it in this way, the connection can be further strengthened.

In addition, in the third embodiment, other parts are the same as the above-mentioned first and second embodiments, so
Identical parts are given the same reference numerals and their explanations will be omitted.

When manufacturing the heat insulating panel of this invention constructed as described above, a plurality of roll formers 50 are used to sequentially draw out a pair of face plate materials 11 wound into a coil shape as shown in FIG. A folded edge 12 is formed on one opposing side of the material 11, and both surface plate materials 11 (specifically, the surface plate 10 is shown)
The legs 28 and the locking protrusions 29 of the connecting frame member 20 are fitted from the outside between the folded edges 12 of the
are locked by snap engagement, and the insulating core material 30 is foamed and filled by the foaming device 60. At this time, due to the foaming pressure of the insulating core material 30, the protrusion 2 for locking the connecting frame material 20 is attached to the tip of the folded edge 12.
9 is securely engaged and fixed. The insulation panel is then cut into predetermined dimensions using a cutter 70.

In addition, in the above embodiment, the case where the connecting frame material 20 is attached by forming the folded edges 12 on the opposite sides of the panel was explained, but the structure is not necessarily limited to this, and the folded edges 12 are formed on the opposite sides of the panel. Of course, it is also possible to form the edges 12 and attach the connecting frame members 20 to the four circumferences of the panel in the same manner.

[Effects of the Invention] As explained above, the heat insulating panel of this invention is configured as described above, so that the following effects can be obtained.

1. Since the folded edges of the surface plate and the legs and locking protrusions of the connecting frame material can be connected by so-called snap engagement, when the pair of surface plates are facing each other at a predetermined distance, the connecting The frame material can be easily set from the outside.

2. The protrusions of the connecting frame material are reliably locked and fixed to the folded edges of the surface plate by the foaming pressure of the insulating core material, so the dimensional accuracy of the panel can be improved.

3. It can be easily used in the continuous foam molding process, so
Productivity can be improved.

4. Since the connecting grooves and the legs are integrally formed, the number of structural members can be reduced and the insulation panel can be made thinner.

[Brief explanation of the drawing]

Fig. 1 is a sectional perspective view showing a first embodiment of the heat insulating panel of this invention, Fig. 2 is a sectional view showing a connected state of the heat insulating panel, and Fig. 3 is a sectional view showing a second embodiment of this invention. Fig. 4 is a sectional view showing the third embodiment of this invention, Fig. 5 is a schematic side view showing the manufacturing process of the heat insulating panel of this invention, and Figs. 6 to 8 are cross sections showing conventional heat insulating panels, respectively. It is a diagram. Explanation of symbols, 10... Surface plate, 12... Folded edge, 20... Frame material for connection, 24... Concave strip for connection,
26... Connecting protrusion, 28... Leg, 29... Locking protrusion, 30... Insulating core material.

Claims (1)

[Claims for Utility Model Registration] (1) A pair of surface plates, a connecting frame material attached to the edges of these surface plates, and foam filling in the space constituted by the surface plate and the connecting frame material. In a heat insulating panel comprising a heat insulating core material and a concave or convex strip for connection formed on the outer surface of the connecting frame material, at least one opposing side of the pair of face plates has a tip thereof. A folded edge protruding inwardly of the panel is provided, and the connecting frame member is provided with legs that are fitted from the outside between the folded edges of the face plate and are elastically engaged, and the ends of the legs are provided. A heat insulating panel characterized in that a protruding strip is formed on the part to be engaged with the tip of the folded edge, and the tip of the leg is connected to form the connecting concave strip. (2) A claim for utility model registration that includes the fact that the folded edge provided on one side of the surface plate and the end side of the leg formed on the connecting frame are narrowly inclined with respect to the center plane in the thickness direction of the panel. The insulation panel described in item 1.