JPS6340904B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to improvements in heat-insulating panels used as heat-insulating wall panels, heat-insulating roof panels, heat-insulating ceiling panels, etc. when assembling and constructing buildings. Conventionally, one of the construction methods for buildings with insulation properties has been to attach insulation materials to walls and ceilings such as reinforced concrete structures and lightweight precast concrete slabs, or to spray foamed urethane as insulation materials. However, if foamed urethane is allowed to foam at the construction site, there is a risk of fire. In addition, this construction method requires a polyethylene film moisture barrier layer or an asphalt moisture barrier layer in addition to the insulation material, making the installation complicated. There is no good adhesive, which results in an incomplete moisture barrier, and it is easily torn, making it unreliable. On the other hand, asphalt moisture proofing has the disadvantage of creating a poor working environment as it generates high temperatures, odors and smoke. Further, as shown in FIG. 1, the concave portion and the convex portion of the sandwich panel 8, which is made of a hard urethane foam heat insulating material 2 and a color steel plate 7 integrally laminated on both sides of the sandwich panel 8, are fitted into each other. A construction method is also known in which a packing 20 is interposed between the bottom of the recess and the tip of the convex part, and the joint of the fitting part is sealed with a caulking material 9 for moisture-proofing and airtightness. However, in the case of this construction method, there is a risk that the caulking material 9 may deteriorate over time, or be damaged by wind pressure or vibrations such as earthquakes, and the moisture-proof layer between the sandwich panel 8 and the concrete floor. There is a problem in that it is difficult to completely prevent moisture in the connection between the The object of the present invention is to provide a thermal insulation panel for buildings that can advantageously solve the above-mentioned problems. Next, the present invention will be explained in detail using illustrated examples. 2 and 3 show a heat insulating panel according to an embodiment of the present invention, in which a plate-shaped heat insulating material 2 made of hard urethane foam or other heat insulating material is coated with colored steel plates or stainless steel plates on both sides. Metal plates 1 and 4 are integrally stacked, and one metal plate 1 is extended so as to protrude beyond the end face of the heat insulating material 2 on the four sides of the panel to form a connecting portion 3. The other metal plate 4 has a fitting connection protrusion 5 on one of the two opposing sides of the panel.
is bent, and the fitting connection groove 6 is bent on the other of the two opposing sides. When assembling and constructing a refrigerated warehouse or other building requiring heat insulation performance using the heat insulation panel 10 configured as described above, the connecting portion 3 is connected at a factory or construction site as shown in FIG. but
It is bent by an angle slightly smaller than 90°, that is, it is bent so that an obtuse angle α slightly larger than 90°, for example 95° to 100°, is formed between the outer surface of the metal plate 1 and the connecting part 3. . The heat insulating panels 10 with the connecting portions 3 bent in this way are arranged side by side as a wall panel, roof panel or ceiling panel, and as shown in FIG. 5 and the fitting connection groove 6 are fitted into each other, and the tip side portions of the connecting portions 3 in adjacent heat insulating panels 10 are overlapped with each other and joined by seam welding 11, and the adjacent connecting portions A gap 12 is formed between the proximal portions of 3. Further, if necessary, a packing material may be inserted in advance into the fitting connection groove 6, or a caulking material may be filled in the groove 6, and if necessary, foamed styrene, foamed urethane, etc. A heat insulating packing material may be inserted. As described above, when the distal end portions of adjacent connecting portions 3 are joined by seam welding 11 and the gap 12 is provided between the proximal end portions of adjacent connecting portions 3, bending deformation of the connecting portion 3 can be prevented. This allows relative movement toward and away from adjacent insulation panels 10 to a certain extent, and also allows expansion, contraction, and deformation of insulation panels due to temperature changes, etc., so that panels due to thermal stress, seismic force, wind pressure, etc. Damage to the joint can be prevented. Also, the connection part 3 in the metal plate 1
By seam welding them together, the joints between the panels can be completely moisture-proof and airtight. The seam-welded connecting portion 3 is bent so as to overlap the outer surface of the metal plate 1, as shown in FIG. 6, if necessary. When the heat insulating panel is used as a ceiling panel of a building, the seam welded connection part 3 may be left to protrude at right angles from the outer surface of the metal plate 1 without being bent, as shown in FIG. When the heat insulating panel is used as a wall panel of a building, it is preferable to bend the seam-welded connection part 3 so as to overlap the outer surface of the metal plate 1, as shown in FIG. Figures 7 and 8 show examples of attaching heat insulating panels to a structural frame, with beams or columns 1
A purlin or rim 17 is fixed to the mounting bracket 16 fixed to the mounting bracket 5 by a bolt 18, and the metal plate 4 of the first insulation panel 10A is abutted against the purlin or rim 17, and the one side bolt or They are connected by a fixing device 19 such as a blind rivet, and then the fit connection protrusion 5 of the second heat insulation panel 10B is fitted into the fit connection groove 6 of the first heat insulation panel 10A. The metal plate 4 in the heat insulation panel 10B of No. 2 is connected to the purlin or the rim 17 by the above-mentioned fixing device,
Next, the connecting portions 3 of each heat insulating panel 10A, 10B are joined by seam welding 11. Next, Table 1 shows examples of combinations of materials for the inner metal plate and the outer metal plate in the heat insulation panel.

[Table] If a stainless steel plate is used as the outer metal plate, the weather resistance of the insulation panel can be improved, and if a stainless steel plate is used as the inner metal plate, the insulation panel can be used in food storage warehouses, etc. In this case, cleanliness can be improved.
An aluminum plate may be used as the metal plate. Further, in the above embodiment, the connecting portions 3 are provided on the four sides of the panel, but the connecting portions 3 may be provided only on the two sides of the panel having the fitting connection protrusions 5 and the fitting connection grooves 6. Alternatively, the connecting portion 3 may be provided only on the side having the fitting connection protrusion 5 and the fitting connection groove 6 and one other side. Furthermore, spot welding or other suitable joining means may be employed as means for joining the connecting parts 3 to each other. According to the present invention, the connecting portion 3 of one metal plate 1 in the heat insulating panel 10 is bent and raised, and the fitting connection protrusion 5 formed on the other metal plate 4 in the adjacent heat insulating panel 10 is fitted and connected. By fitting the grooves 6 into each other, adjacent insulation panels 10 can be easily joined by preventing misalignment, and the connecting parts 3 to be joined by seam welding etc. can be automatically positioned and temporarily fixed. Therefore, it is possible to accurately and easily connect the connecting portions 3 to each other, and furthermore, the connecting portions 3 of the ends of the metal plates 1 in the adjacent heat insulating panels 10 can be connected to each other accurately and easily.
By joining them together by seam welding or the like, it is possible to prevent the heat insulation panels 10 from separating from each other and to firmly connect them against wind pressure and seismic force. In addition, when connecting parts extending from the metal plates on both sides of the insulation panel are bent and joined by seam welding, etc., the joining work must be performed by seam welding, etc. on both the inside and outside of the insulation panel, so the joining work is difficult. It is complicated and takes a long time to work, and protrusions occur on both the inside and outside of the insulation panel due to the joints joined by seam welding, etc., and these protrusions may become an obstacle when installing the insulation panel to a structural frame, etc. However, in the case of this invention, one side of the insulation panel in the inside and outside direction is fitted and the other side is connected by seam welding, etc.
The joining work can be halved to improve the joining work efficiency, and since there is no protrusion on one side of the heat insulating panel, the heat insulating panel can be easily attached to a structural frame, etc.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional plan view showing a conventional heat insulating panel joint, Fig. 2 is a perspective view showing a heat insulating panel according to an embodiment of the present invention, Fig. 3 is a partially cutaway enlarged sectional view thereof, and Fig. 4 is a A partially cutaway cross-sectional view showing a heat-insulating panel with the connection part bent and raised; Figures 5 and 6 are cross-sectional views showing an example of joining the heat-insulating panel; and Figure 7 is a longitudinal side view showing an example of attaching the heat-insulating panel to a structural frame. figure,
FIG. 8 is a cross-sectional plan view thereof. In the figure, 1 is a metal plate, 2 is a heat insulating material, 3 is a connection part, 4 is a metal plate, 5 is a protrusion for fitting connection, 6 is a groove for fitting connection, 10 is a heat insulation panel, 11 is seam welding, 12 is a gap, 13 is a caulking material or packing material, 17 is a purlin or a rim, and 19 is a fixing tool.

Claims (1)

[Claims] 1. In a heat insulating panel consisting of a heat insulating material and metal plates integrally laminated on both sides of the heat insulating panel, one of the metal plates 1 is extended so as to protrude beyond the end surface of the heat insulating material 2 on two opposing sides of the heat insulating panel. The connecting portion 3 is formed, and the other metal plate 4 has a fitting connection protrusion 5 formed on one side of the two opposing sides, and a fitting connection groove 6 formed on the other side. A thermal insulation panel for buildings characterized by: