JP2009174737A - Foam insulation panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foam insulation panel free from deformation though it is a panel having a thick plate thickness and high foaming pressure, and having the probability of deformation of a frame material, and capable of being manufactured without using a tool corresponding to foaming pressure. <P>SOLUTION: In this foam insulation panel 1 composed of a pair of surface plates 2, a frame material 3 disposed between side portions of the surface plates 2, and a foam insulation material 4 injected and filled in a space formed by both surface plates 2 and the frame material 3, and provided with a recessed portion 31 for connection formed on an outer peripheral face of the frame material 3 along the longitudinal direction of the frame material 3, a plurality of plate-shaped projections 36a, 36b, 36c symmetrical to a central portion of the recessed portion 31 are formed on a bottom surface 31a of the recessed portion 31. As the plurality of projections as supporting points of deflection of the frame material are formed even when outward pressure by foaming pressure of the foam insulation acts on the frame material in manufacturing the panel, a distance between the supporting points of the recessed portions of the frame material is shortened, and the deformation in the cross-sectional direction of the frame material can be suppressed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a foam insulation panel used for, for example, a prefabricated refrigerator or freezer or a ceiling, wall or partition of a building.

  In general, this type of foam insulation panel is provided with a recess or a protrusion formed on the outer surface of the frame member from the viewpoint of bonding strength and airtightness, and the recess and the protrusion are fitted to each other.

  Conventionally, in order to strengthen the connection between panels, a small ridge is provided on the bottom surface of the concave portion, and a small groove that can be fitted to the small ridge is formed on the tip surface of the convex portion. Thermal insulation panels are known (see, for example, Patent Document 1).

In addition, in the frame material formed with the convex portion, a concave groove having a bottom surface with a predetermined width is formed in the longitudinal direction in the convex portion, and in the frame material formed with the concave portion, an upper surface with a predetermined width corresponding to the concave groove. There is known a heat insulating panel having a structure in which ridges having ridges are formed in the longitudinal direction (see, for example, Patent Document 2). In the heat insulating panel configured as described above, the ridge has an upper surface with a predetermined width, and therefore, when the heat insulating material is foamed, it can abut against the jig and receive the foaming pressure.
Japanese Patent Laid-Open No. 5-39428 (FIG. 4) Japanese Patent Laid-Open No. 7-120139 (Claims, paragraph [0015], FIG. 3)

  However, in the heat insulating panel described in Patent Document 1, when the pressure inside the foam heat insulating panel is large and the thickness of the panel itself is increased, there is a possibility that the frame member itself is deformed by an outward pressure.

  Moreover, in the heat insulation panel of patent document 2, since the protruding item | line has the upper surface of predetermined width, at the time of foaming of a heat insulating material, it can contact | abut to a jig | tool and can receive foam pressure, There is a concern of deformation due to residual foaming pressure after the removal. Furthermore, it is necessary to make the jig itself compatible with the foaming pressure, which may reduce the working efficiency.

  The present invention has been made in view of the above circumstances, and does not deform even a panel having a large plate thickness or foaming pressure and may be deformed by a frame material, and is produced without using a jig corresponding to the foaming pressure. The object is to provide a possible foam insulation panel.

  In order to solve the above problems, a foam heat insulating panel of the present invention includes a pair of surface plates, a frame member interposed between the side portions of these surface plates, and a space formed by the both surface plates and the frame member. A foam heat insulating panel that is injected and filled into the outer peripheral surface of the frame member, and is formed by forming a recess for connection along the longitudinal direction of the frame member. In addition, a plurality of plate-like ridges that are symmetrical with respect to the central portion of the concave portion are provided so as to project (claim 1).

  By comprising in this way, even if the pressure to the outside by the foaming pressure of the foam heat insulating material at the time of panel manufacture acts on the frame material, by providing a plurality of ridges that serve as fulcrums of the frame material The distance between the fulcrums of the concave portions of the frame material is shortened, and the frame material can be prevented from being deformed in the cross-sectional direction. Therefore, a foam heat insulation panel can be produced without using a jig corresponding to the foaming pressure, and deformation can be suppressed even with respect to the foaming pressure remaining in the panel after the jig is removed. In addition, by providing a plurality of protrusions in the recesses of the frame member, in the joined state of the panels, the ventilation path of the joined portion can be bypassed and lengthened, so that airtightness and heat insulation can be improved.

  In the present invention, it is preferable that the base end portion of the ridge is provided with a notch portion capable of cutting the ridge (Claim 2).

  By configuring in this way, for example, when the foaming pressure is low and there is no possibility of deformation, unnecessary ridges can be cut off by the notch.

  Since the foam heat insulation panel of this invention is comprised as mentioned above, the following effects are acquired.

  (1) According to the invention described in claim 1, since the distance between the fulcrums of the recesses of the frame material is shortened and the frame material can be prevented from being deformed in the cross-sectional direction, the jig corresponding to the foaming pressure The foam heat insulation panel can be produced without using the material, and the deformation can be suppressed even with respect to the foaming pressure remaining in the panel after the jig is removed. In addition, by providing a plurality of protrusions in the recesses of the frame member, in the joined state of the panels, the ventilation path of the joined portion can be bypassed and lengthened, so that airtightness and heat insulation can be improved.

  (2) According to the invention described in claim 2, for example, when the foaming pressure is low and there is no risk of deformation, unnecessary ridges can be cut off by the notch, so in addition to (1) above Furthermore, it is possible to easily cope with a foam insulation panel that does not require a plurality of ridges, and it can be applied to a foam insulation panel for a wide range of uses.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the best embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional perspective view showing an essential part of a foam heat insulation panel according to the present invention, FIG. 2 is a cross sectional view showing a joined state of the foam heat insulation panel according to the present invention, and FIG. 3 shows a frame material in the present invention. It is I section expanded sectional drawing of sectional drawing (a) and (a).

  The foam insulation panel 1 (hereinafter referred to as insulation panel 1) includes a pair of surface plates 2 and frame members 3 and 3A interposed between the side portions of the surface plates 2, as shown in FIGS. These are mainly composed of a foamable heat insulating material 4 such as foamed polyurethane filled in a space formed by the both surface plates 2 and the frame members 3 and 3A.

  The surface plate 2 is formed in a thin plate shape of a certain standard size by, for example, an aluminum alloy, and an end bent piece 21 that is bent vertically toward the opposite surface plate 2 is formed on each side. (See FIGS. 1 and 2).

  As shown in FIGS. 1 and 2, the frame material 3 is formed in a substantially inverted trapezoidal cross section along the longitudinal direction between the side portions of the pair of surface plates 2 of one heat insulating panel 1 to be joined. An engaging recess 31 (hereinafter referred to as a recess 31) is formed. Further, as shown in FIG. 2, the frame member 3 </ b> A has a cross section that can be fitted (engaged) with the concave portion 31 between the side portions of the pair of surface plates 2 of the other heat insulating panel 1 to be joined. An engaging protrusion 32 having a shape (hereinafter referred to as a protrusion 32) is formed.

  At both ends of the recesses 31 and the protrusions 32 of the frame members 3 and 3A, fitting grooves that extend perpendicular to both surface plates 2 and can be fitted with the end bent pieces 21 of the surface plates 2 are fitted. A vertical piece 33 having 34 is continuously formed. Further, a horizontal piece 35 that is bent in parallel to the surface plate 2 from the end of the vertical piece 33 and contacts the inner surface of the surface plate 2 is continuously formed. In addition, the said frame materials 3 and 3A are formed, for example by the synthetic resin extrusion shape materials and injection molding materials, such as a vinyl chloride.

  In addition, a plurality of plate-like ridges 36 a, 36 b, and 36 c that are symmetrical with respect to the central portion of the concave portion 31 are provided on the bottom surface 31 a of the concave portion 31 of the frame member 3. It protrudes perpendicularly to 31a. Thus, by projecting a plurality of plate-like ridges 36a, 36b, and 36c that are symmetrical with respect to the central portion of the recess 31, the pressure on the outside due to the foaming pressure of the heat insulating material 4 at the time of panel manufacture is increased. Even if it acts on the frame member 3, the distance between the fulcrums of the recesses 31 of the frame member 3 is shortened by providing a plurality of ridges 36 a, 36 b, 36 c serving as fulcrums of the frame member 3. It can suppress that the material 3 deform | transforms in a cross-sectional direction. Therefore, the heat insulation panel 1 can be produced without using a jig corresponding to the foaming pressure, and deformation can be suppressed even with respect to the foaming pressure remaining in the heat insulation panel 1 after the jig is removed. Further, by providing a plurality of protrusions 36a, 36b, 36c projecting in the recess 31 of the frame member 3, it is possible to bypass and lengthen the ventilation path in the joined portion in the joined state of the heat insulating panel 1, so that airtightness is achieved. Improvement of heat resistance and heat insulation. Therefore, it is suitable for a thick plate heat insulation panel that is required to have high heat insulation.

  In addition, a substantially V-shaped cutout 37 is provided at the base end of the two ridges 36b and 36c other than the ridge 36a at the center of the recess 31 so that the ridges 36b and 36c can be cut off. (See FIG. 3B). As described above, by providing the substantially V-shaped cutout portion 37 in which the protrusions 36b and 36c can be cut off at the base end portions of the protrusions 36b and 36c, for example, heat insulation with low foaming pressure and no risk of deformation. When the panel 1 is manufactured, unnecessary ridges 36b and 36c can be cut off by the notch 37 as shown by an imaginary line in FIG. Similarly, a notch 37 may be provided at the base end of the ridge 36a at the center of the recess 31.

  On the other hand, as shown in FIG. 2, the frame member 3 </ b> A has three protrusions 36 a, 36 b, and 36 c protruding from the bottom surface 31 a of the recess 31 of the heat insulating panel 1 to be joined to the tip surface 32 a of the protrusion 32. Three concave strips 38a, 38b, and 38c that can be fitted to each other are provided.

  The recess 31 and the ridges 36a, 36b, and 36c of the frame member 3 of the heat insulating panel 1 configured as described above are fitted to the protrusion 32 and the ridges 38a, 38b, and 38c of the frame member 3A. The heat insulation panel 1 can be joined. In this joined state, a plurality (three) of the ridges 36a, 36b, 36c and the ridges 38a, 38b, 38c are fitted in a comb shape. Therefore, in addition to the plurality of (three) ridges 36a, 36b, 36c, it is possible to further increase the length of the joint by bypassing the ventilation path, so that the airtightness and the heat insulation can be improved.

  In the above embodiment, the case where there are three ridges 36a, 36b, and 36c has been described. However, if the ridges 36a, 36b, and 36c are a plurality that are symmetrical with respect to the central portion of the recess 31, Two or four or more may be used.

It is a cross-sectional perspective view which shows the principal part of the foam heat insulation panel which concerns on this invention. It is sectional drawing which shows the joining state of the foam heat insulation panel which concerns on this invention. It is sectional drawing (a) which shows the frame material in this invention, and the I section expanded sectional view of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foam heat insulation panel 2 Surface plate 3 Frame material 4 Foam heat insulation material 31 Recessed part (engagement recessed part)
36a, 36b, 36c ridge 37 notch

Claims (2)

The frame comprises a pair of surface plates, a frame member interposed between the side portions of the surface plates, and a foam heat insulating material that is injected and filled into a space formed by the both surface plates and the frame member. A foam insulation panel formed on the outer peripheral surface of the material by forming a concavity for connection along the longitudinal direction of the frame material,
A foam heat insulation panel, wherein a plurality of plate-like ridges that are symmetrical with respect to the central portion of the recess are provided on the bottom surface of the recess.   2. The foam heat insulation panel according to claim 1, wherein a notch portion capable of excising the ridge is provided at a base end portion of the ridge.

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