JP6404684B2 - Thermal insulation panel - Google Patents

Description

  It relates to an insulation panel.

  2. Description of the Related Art Conventionally, a prefabricated storage having a box shape by assembling a plurality of heat insulating panels with each other is known. The heat insulating panel used in such a storage is formed by foaming and filling a heat insulating material into a hollow portion formed by a pair of surface plates and a frame material provided between the pair of surface plates. . And when assembling a prefabricated store, it is formed in a box shape by being connected with another heat insulation panel via these frame members.

  Here, in the work of injecting and filling the foamable heat insulating material into the hollow portion formed by the pair of surface plates and the frame material, gas is generated due to foaming of the heat insulating material, and the gas causes the frame material to The corner may not be filled with the heat insulating material. Therefore, in order to prevent the occurrence of such an unfilled portion (so-called gas reservoir) of the heat insulating material, a configuration in which a hole for venting gas is provided is known (see Patent Document 1).

Japanese Utility Model Publication No. 3-36826

  However, even if a hole for venting is provided, if the heat insulating material is foamed, the heat insulating material will eventually enter the hole for venting and the gas venting effect will be lost. If the gas venting effect has been lost before the gas in the hollow part has been exhausted, in other words, if the gas venting effect has not been maintained for a long time, a gas accumulation will occur in the hollow part, resulting in a decrease in heat insulation performance. Resulting in.

  In this specification, the technique which the degassing effect lasts long at the time of foam filling of a heat insulating material is disclosed.

  The heat insulation panel disclosed in the present specification includes a pair of surface plates, a frame member provided between the pair of surface plates, and a heat insulation foam-filled in a hollow portion formed by the pair of surface plates and the frame member. A gas vent hole for venting the gas in the hollow portion during foam filling of the heat insulating material, and the gas vent hole of the heat insulating material during foam filling of the heat insulating material. And a plate member that suppresses the intrusion of.

  According to the above heat insulation panel, when the heat insulating material is foamed and filled, the board member prevents the heat insulating material from entering the gas vent hole, so that the heat insulating material does not directly enter the gas vent hole, and time is saved. The degassing effect lasts longer than when there is no member. If the degassing effect lasts for a long time, it is difficult for a gas pool to be formed in the hollow portion, and hence a decrease in heat insulation performance due to the gas pool can be suppressed.

  In addition, when the posture of the heat insulating panel is set to a posture in which the inner opening that opens in the hollow portion of the gas vent hole is opened downward, the plate member is positioned substantially horizontally below the inner opening. It may be.

  According to the above heat insulating panel, when the heat insulating material is foam-filled with the heat insulating panel in the above-described posture, the heat insulating material rising from the bottom of the plate member is prevented from rising by the plate member, so-called "mouse turning" effect Thus, the plate member is bypassed to reach the inner opening. Thereby, the penetration | invasion to the vent hole of a heat insulating material is suppressed.

  Moreover, when the said heat insulation panel is set to the attitude | position in which the said plate member becomes substantially horizontal, the inner side opening opened to the said hollow part of the said vent hole may open in the substantially horizontal direction.

  According to the above heat insulation panel, when the posture of the heat insulation panel is set to the above-described posture, when the inner side opening that is open in the horizontal direction is located above the plate member, the heat insulating material is foam-filled in that posture. The heat insulating material rising from under the plate member is prevented from rising by the plate member, and reaches the inner opening by bypassing the plate member due to the so-called “screw-back” effect. Thereby, the penetration | invasion to the vent hole of a heat insulating material is suppressed.

  On the other hand, when the position of the heat insulation panel is set to the above-described position, if the inner side opening that is open in the horizontal direction is located below the plate member, the heat insulation material is foam-filled by turning the heat insulation panel upside down. The heat insulating material rising from under the plate member is prevented from rising by the plate member, and reaches the inner opening by bypassing the plate member due to the so-called “screw-back” effect. Thereby, the penetration | invasion to the vent hole of a heat insulating material is suppressed.

  The plate member may partition the inner opening into two when viewed from a direction parallel to the plate surface of the plate member.

  According to the above heat insulation panel, when the heat insulation panel is foamed and filled with the heat insulation panel in the posture in which the plate member partitions the inner opening into the upper and lower parts, the gas under the plate member is partitioned by the plate member in the inner opening. Since the gas flows out from the lower portion, the gas above and below the plate member can be extracted by one gas vent hole. That is, according to the above heat insulation panel, even if the plate member is provided, it is not necessary to provide a separate vent hole for suppressing the occurrence of gas accumulation under the plate member. A configuration for suppressing the occurrence of accumulation can be simplified.

  The inner opening may have an opening area on one side partitioned by the plate member and an opening area on the other side.

  According to said heat insulation panel, the posture of the heat insulation panel is set so that the side having the larger opening area is above the plate member and the side having the smaller opening area is below the plate member among the one side and the other side of the inner opening. When the heat insulating material is foam-filled, the effect of suppressing the intrusion of the heat insulating material into the gas vent hole becomes larger as compared to the case where the upper side has a smaller opening area than the lower side.

  Moreover, the protrusion which suppresses the penetration | invasion to the said vent hole of the said heat insulating material may be provided around the said inner side opening.

  According to said heat insulation panel, the penetration | invasion to the vent hole of a heat insulating material can be suppressed more.

  Further, when the posture of the heat insulating panel is set to a posture in which the plate member is substantially horizontal, the protrusion extends in the vertical direction, and is substantially horizontal from at least one end in the vertical direction of the protrusion to the inner opening. An extending wall may be provided.

  According to said heat insulation panel, it can suppress that the heat insulating material which went around the edge mentioned above of protrusion was penetrate | invaded into a gas vent hole.

  Further, the gas vent hole is provided in the vicinity of a corner of the frame member, and the plate member is integrally formed on two inner surfaces of the frame member that are substantially perpendicular to each other at the corner. May be.

  According to the above heat insulation panel, when the vent hole is provided in the vicinity of the corner of the frame member, the degassing effect can be maintained longer than when there is a gap between the plate member and the two inner surfaces. it can.

  According to the heat insulation panel disclosed in the present specification, the degassing effect lasts for a long time when the heat insulating material is foam-filled.

The perspective view which shows the external appearance of the prefabricated store | warehouse | chamber comprised using the heat insulation panel which concerns on this embodiment. The perspective view which simplifies and shows the heat insulation panel which comprises the ceiling The perspective view which simplifies and shows the heat insulation panel which comprises the floor Sectional drawing of the AA line shown to FIG. 2A Perspective view of corner member Front view of the bottom wall of a square member Sectional view of the BB line shown in FIG. Sectional view taken along the line CC of FIG. Sectional drawing of the DD member shown in FIG. 6 of a square member The perspective view which looked at the square member from the front side Perspective view of a corner member seen from the back side Sectional view of the EE line shown in FIG. Sectional drawing of the FF line shown in FIG. 13 of a square member Sectional view of the square member taken along line GG shown in FIG. The perspective view which looked at the square member from the front side The perspective view which looked at the square member from the front side The perspective view which looked at the square member from the front side Schematic diagram for explaining foaming of a heat insulating material at a corner member Schematic diagram for explaining foaming of a heat insulating material at a corner member

<Embodiment>
An embodiment of the present invention will be described with reference to FIGS.

(1) Appearance of prefabricated storehouse With reference to FIG. 1, an appearance of a prefabricated storehouse 1 configured using the heat insulating panel according to the present embodiment will be described. The prefabricated storage 1 is formed in a box shape having a ceiling 1A, a floor 1B (see FIG. 2B), and four side surfaces.

  The ceiling 1A and the floor 1B are each constituted by three heat insulating panels 11 (11A, 11B, 11C). Of the four side surfaces, the side surfaces other than the side surface 13 are also constituted by three heat insulating panels 12 (12A, 12B, 12C). The side surface 13 includes two heat insulating panels 12A and 12B, a heat insulating panel 12D provided with an opening (not shown), and a sliding heat insulating panel 12E provided with a handle. A user of the prefabricated storage 1 can go in and out of the storage by sliding the heat insulation panel 12E.

(2) Thermal insulation panel which comprises the ceiling and the floor First, with reference to FIG. 2A, the thermal insulation panel 11 which comprises the ceiling 1A is demonstrated. In the following description, members having the same structure are denoted by the same reference numerals.

  Each heat insulating panel 11 has a pair of surface plates 14 made of metal plates facing each other at a predetermined interval, and a frame member 15 (15A, 15B, 15C) made of a synthetic resin molded product such as hard vinyl chloride. It is formed by being attached to. A heat insulating material made of a foamed resin such as hard polyurethane is filled in a hollow portion inside the heat insulating panel 11 by foaming.

  The frame member 15A of the left heat insulating panel 11A includes edge frame members 16, 17, 18, a convex frame member 19 (see FIG. 3), two corner members 20A, a corner member 20B, and a corner member 20C. The edge frame members 17 and 18 are different in length from the edge frame member 16 but have the same cross-sectional shape.

  The corner member 20A is a member that connects the edge frame members 16, 17, and 18 at a right angle. The corner member 20B is a member that connects the edge frame member 17 and the convex frame member 19 at a right angle. The corner member 20C is a member that connects the edge frame member 18 and the convex frame member 19 at a right angle.

  The frame member 15B of the heat insulating panel 11B arranged in the center includes edge frame members 17, 18, a concave frame member 21 (see FIG. 3), a convex frame member 19, a corner member 20B, a corner member 20C, a corner member 20D, and It consists of a square member 20E. The corner member 20D is a member that connects the concave frame member 21 and the edge frame member 18 at a right angle. The corner member 20E is a member that connects the recessed frame member 21 and the edge frame member 17 at a right angle.

  The frame material 15C of the right heat insulation panel 11C is replaced with the convex frame material 19, the corner member 20B, and the corner member 20C of the frame material 15A of the left heat insulation panel 11A. A corner member 20E is provided.

  Next, with reference to FIG. 2B, the heat insulation panel 11 which comprises the floor 1B is demonstrated. The floor 1B has the same structure as the ceiling 1A, and corresponds to a structure in which the three heat insulation panels 11 constituting the ceiling 1A are turned upside down.

(2-1) Cross-sectional shapes of edge frame material, convex frame material, and concave frame material The cross-sectional shapes of the edge frame material 16, the convex frame material 19, and the concave frame material 21 will be described with reference to FIG. .
The edge frame member 16 is formed in a U-shaped cross section. The bottom wall 31 of the edge frame member 16 is formed in a shape corresponding to the shape of the upper end surface (not shown) of the heat insulating panels 12 (12A to 12D) constituting the side surface of the prefabricated storage 1, and A concave strip portion 35 into which the convex strip portion formed on the upper end surface fits, a convex strip portion 36 fitted into the concave strip portion formed on the upper end surface of the heat insulating panel 12, and the like are formed. The concave line portion 34 is not a groove into which the convex line portion fits, but is a groove for temporarily fixing the gap between the heat insulating panels 11 by driving a ridge into the groove when connecting the adjacent heat insulating panels 11.

  Further, a groove 33 into which the edge of the surface plate 14 is inserted is formed in the bottom wall 31 and the upper wall 32 of the edge frame member 16. The edge of the surface plate 14 is bent about 90 degrees, and the edge is inserted into the groove 33.

  The convex frame member 19 is formed in a shape corresponding to the concave frame member 21, and the convex strip portion 37 that fits into the concave strip portion 40 formed in the concave frame member 21 or the convex portion formed in the concave frame member 21. A concave strip portion 38 into which the strip portion 41 is fitted is formed. Grooves 33 into which the edges of the surface plate 14 are inserted are also formed on the convex frame member 19 in the vertical direction.

  The concave frame member 21 is formed in a shape corresponding to the convex frame member 19, and the concave strip portion 40 into which the convex strip portion 37 formed on the convex frame member 19 fits or the concave portion formed on the convex frame member 19. A ridge 41 that fits into the ridge 38 is formed. A groove 33 into which the edge of the surface plate 14 is inserted is also formed on the concave frame material 21 in the vertical direction.

(2-2) Square member 20A
The corner member 20A will be described with reference to FIGS. In FIG. 4, the corner member 20A used for the ceiling 1A is shown upside down. Therefore, in FIG. 4, the upper wall 51 is a bottom wall and the lower wall 52 is an upper wall.

  As shown in FIG. 4, the corner member 20 </ b> A has a bottom wall 51, an upper wall 52, and two side walls 53 and 54 that are connected to each other at a substantially right angle. On the surface of the bottom wall 51, the concave strip portions 55 and 56 connected to the concave strip portions 34 and 35 formed on the edge frame members 16 to 18 and the convex strip portion 36 formed on the edge frame members 16 to 18 are formed. The continuous protrusion 57 is formed in an L shape.

  Further, a first fitting portion 58 fitted and inserted into the end of the edge frame member 17 (or 16) extends from the bottom wall 51, the upper wall 52, and the side wall 53 of the corner member 20A in a substantially U shape. Yes. The first fitting portion 58 is formed thinner than the bottom wall 51, the upper wall 52, and the side wall 53 by the thickness of the edge frame member 17. When the first fitting portion 58 is fitted and inserted into the end of the edge frame member 16, the surface of the corner member 20A and the surface of the edge frame member 17 are substantially flush with each other.

  Similarly, from the bottom wall 51, the top wall 52, and the side wall 54 of the corner member 20 </ b> A, the edge frame member 16 (or 18) is fitted from the direction perpendicular to the fitting direction of the first fitting portion 58. The second fitting portion 59 to be inserted extends in a substantially U shape.

  As shown in FIG. 5, the bottom of the outermost recess 55 of the plurality of recesses 55, 56 formed on the bottom wall 51 of the corner member 20 </ b> A is outside the vent hole described below. An opening 60 is formed. The outer opening 60 is formed in an L shape that is bent by 90 degrees at the corner of the concave portion 55.

  The gas vent hole 61 will be described with reference to FIG. The gas vent hole 61 is used for venting the air generated in the air in the hollow part (or the gas when the gas is filled before foaming) or foaming when the heat insulating material is filled in the hollow part. It is a hole. The gas vent hole 61 extends from the bottom of the recess 55 to about 1/3 of the thickness of the heat insulating panel 11 and opens to the hollow portion. In the following description, the opening 62 on the hollow portion side of the gas vent hole 61 is referred to as an inner opening 62. In FIG. 6, the inner opening 62 opens downward. As shown in FIG. 7, the inner opening 62 is also L-shaped.

  Further, as shown in FIG. 6, the corner member 20 </ b> A is provided with a plate member 63 that prevents the heat-insulating material from entering the gas vent holes 61 when the heat-insulating material is foam-filled. Specifically, the plate member 63 is positioned substantially horizontally below the inner opening 62 when the posture of the heat insulating panel 11A is such that the inner opening 62 opens downward. The area of the plate surface of the plate member 63 is three times or more the opening area of the inner opening 62.

  As shown in FIG. 8, the plate member 63 is integrally formed on the two side walls 53 and 54 of the corner member 20A. The plate member 63 shields the inner opening 62 when viewed from the side opposite to the inner opening 62 side (the front side in FIG. 8) with respect to the plate member 63. For this reason, when viewed from the side opposite to the inner opening 62 side, the inner opening 62 is covered with the plate member 63 and is not visible.

(2-3) Square members 20B to 20E
Next, the corner members 20B to 20E will be described with reference to FIGS.
As shown in FIG. 9, the corner member 20 </ b> B has a side wall 70. On the surface of the side wall 70, a protruding strip portion 71 that is continuous with the protruding strip portion 37 formed on the protruding frame member 19 and a concave strip portion 72 that is continuous with the concave strip portion 38 formed on the convex frame member 19 are formed. Yes.

As shown in FIG. 10, from the back surface of the side wall 70, a third fitting portion 73 fitted and inserted into the end of the edge frame member 17 extends in a substantially U shape along the three sides of the side wall 70.
Moreover, from the side wall 70 and the two wall portions 73A and 73C facing the third fitting portion 73 from the direction perpendicular to the fitting direction of the third fitting portion 73 to the end of the convex frame member 19. A fourth fitting portion 74 to be fitted and inserted extends in a substantially U shape. The fourth fitting portion 74 is formed thinner by the thickness of the convex frame member 19 than the side wall 70, the wall portions 73A, and 73C. When the fourth fitting portion 74 is fitted and inserted into the end of the convex frame member 19, the surface of the side wall 70 and the surface of the convex frame member 19 are substantially flush with each other.

  Further, as shown in FIG. 9, an outer opening 75 of a gas vent hole described below is formed on the surface of the side wall 70. The outer opening 75 is formed in an elongated linear shape.

  The gas vent hole 76 will be described with reference to FIG. The gas vent hole 76 is a hole for venting the air generated in the hollow portion and the gas generated by foaming when the hollow portion is filled with the heat insulating material. Specifically, as shown in FIG. 12, the inner surface of the wall portion 73 </ b> B perpendicular to the horizontal direction among the wall portions 73 </ b> A to 73 </ b> C constituting the third fitting portion 73 has a U-shaped cross section. The plate part 77 is integrally formed. A space between the top plate portion 77 and the wall portion 73 </ b> B constitutes a gas vent hole 76. As shown in FIG. 12, the gas vent hole 76 is formed in a narrow elongated hole shape.

  As shown in FIG. 13, the end of the top plate portion 77 that is opposite to the outer opening 75 is formed in an arc shape that is convex on the opposite side of the outer opening 75. That is, the opening 78 inside the gas vent hole 76 has an arc shape. In the following description, the opening 78 inside the gas vent hole 76 is referred to as an inner opening 78.

  As described above, the outer opening 75 of the gas vent hole 76 has an elongated linear shape, whereas the inner opening 78 has an arc shape. Therefore, the inner opening 78 has a larger opening area than the outer opening 75. In this embodiment, the opening area of the inner opening 78 is about 15% larger than the opening area of the outer opening.

  An arcuate protrusion 79 extending along the inner opening 78 is formed on the inner surface of the wall portion 73 </ b> B at an interval from the inner opening 78. A lateral wall 80 extending substantially horizontally from the lower end in the direction along the inner opening 78 (vertical direction) of the protrusion 79 to the inner opening 78 is formed on the inner surface of the wall 73B. A lateral wall 80 may also be provided at the upper end of the protrusion 79. Alternatively, the lateral wall 80 may not be provided at the lower end of the projection 79 but may be provided only at the upper end.

  Further, as shown in FIG. 12, the corner member 20B is provided with a plate member 81 that substantially horizontally prevents the heat-insulating material from entering the gas vent holes 76 when foaming and filling the heat-insulating material. Specifically, the plate member 81 is integrally formed on the back surface of the side wall 70 and the surface opposite to the wall portion 73B of the top plate portion 77, and extends substantially perpendicularly from these surfaces. The area of the plate surface of the plate member 81 is three times or more the opening area of the inner opening 78.

  As shown in FIG. 13, the plate member 81 extends substantially horizontally from the back surface of the side wall 70 to the arc-shaped protrusion 79 and is integrated with the protrusion 79, and further extends to the right side of the protrusion 79. A portion of the plate member 81 on the right side of the protrusion 79 is integrated with the wall portion 73B.

  As shown in FIG. 13, the plate member 81 is provided at a position about 1/5 from the bottom of the inner opening 78, and divides the inner opening 78 into two upper and lower parts. Since the plate member 81 is provided at a position about 1/5 from the bottom of the inner opening 78, the inner opening 78 has an opening area on the upper side (one side) and a lower side (the other side) partitioned by the plate member 81. ), And the upper area is larger than the lower area.

Next, the square members 20C to 20E will be described with reference to FIGS.
As shown in FIG. 14, the corner member 20C has a shape in which the left and right sides of the corner member 20B are reversed.
As shown in FIG. 15, the corner member 20 </ b> D is fitted to the side wall 90, the third fitting portion 73 having the same shape as the third fitting portion 73 formed on the corner member 20 </ b> B, and the third fitting portion 73. It has the 5th fitting part 91 fitted and inserted in the terminal of the concave frame material 21 from the direction perpendicular | vertical to a direction.

  On the surface of the side wall 90, a concave stripe portion 92 continuous with the concave stripe portion 40 formed on the concave frame member 21 and a convex stripe portion 93 continuous with the convex stripe portion 41 formed on the concave frame member 21 are formed. Yes. When the fifth fitting portion 91 is fitted and inserted into the end of the concave frame member 21, the surface of the side wall 90 and the surface of the concave frame member 21 are substantially flush with each other.

As shown in FIG. 16, the corner member 20E has a shape in which the left and right sides of the corner member 20D are reversed.
Similarly to the corner member 20B, the corner members 20C to 20E are provided with gas vent holes and plate members, and outer openings 75 and 94 of the gas vent holes are formed on the side walls.

(3) Foam filling of heat insulating material Here, the heat insulating panel 11A will be described as an example. As shown in FIG. 6, foam filling of the heat insulating material into the hollow portion of the heat insulating panel 11 </ b> A is performed with the posture of the heat insulating panel 11 </ b> A being such that the inner opening 62 of the corner member 20 </ b> A is open downward. In this posture, the plate member 63 is positioned substantially horizontally below the inner opening 62. In this posture, the plate member 81 of the corner member 20B is substantially horizontal as shown in FIG. When the plate member 81 is substantially horizontal, the inner opening 78 of the gas vent hole 76 opens in the horizontal direction as shown in FIG. 13, and a part thereof is located on the plate member 81.

  In the state where the heat insulating panel 11A is in the above-described posture, a two-component heat insulating material is supplied to the vicinity of the center of the lower surface plate 14 from an inlet (not shown) provided in the frame material 15A. Foaming begins. The heat insulating material that has started foaming rises while spreading in the horizontal direction. At this time, the air in the hollow portion and the gas generated along with foaming escapes through the vent holes 61 and 76.

(3-1) Foaming of heat insulating material at corner member 20A As shown in FIG. 17, in this embodiment, when the heat insulating material 100 reaches the corner of the corner member 20A, the heat insulating material 100 near the corner is still the plate member 63. It is assumed that the height has not been reached. In other words, the plate member 63 is provided at a position higher than the upper end of the heat insulating material 100 near the corner when the heat insulating material 100 reaches the corner of the corner member 20A. This position can be determined by experiments or the like.

  When the heat insulating material 100 reaches the corner of the corner member 20 </ b> A, the heat insulating material 100 rises from the bottom of the plate member 63 toward the inner opening 62. Then, the heat insulating material 100 is prevented from rising by the plate member 63, and reaches the inner opening 62 by bypassing the plate member 63 due to a so-called “screw-back” effect. That is, the heat insulating material 100 is prevented from entering the gas vent hole 61 by the plate member 63.

(3-2) Foaming of heat insulating material in the corner members 20B to 20E Here, the corner member 20B will be described as an example. As shown in FIG. 18, the plate member 81 is provided at a position higher than the upper end of the heat insulating material 100 in the vicinity of the corner when the heat insulating material 100 reaches the corner of the corner member 20B. This position can be determined by experiments or the like.

  When the heat insulating material 100 reaches the corner of the corner member 20B, it rises from the bottom to the top of the plate member 81. Then, the heat insulating material 100 is prevented from rising by the plate member 81, and reaches the upper portion of the inner opening 78 partitioned by the plate member 81 by detouring the plate member 81 due to the so-called “screw-back” effect. That is, the heat insulating material 100 is prevented from entering the gas vent hole 76 by the plate member 81.

  At this time, the gas below the plate member 81 escapes from the lower portion partitioned by the plate member 81 in the inner opening 78.

  In addition, the heat insulating material 100 that has progressed from the right side (from the center of the heat insulating panel 11) in FIG. 18 to the left side is prevented from entering the gas vent hole 76 by the arc-shaped protrusion 79. Further, since the horizontal wall 80 extends from the lower end of the arc-shaped protrusion 79, the heat insulating material 100 is also prevented from entering the gas vent hole 76 around the lower end of the protrusion 79.

(4) Effects of Embodiment According to the heat insulating panel 11 according to the present embodiment described above, in the corner member 20A, the plate member 63 enters the gas vent hole 61 of the heat insulating material 100 when the heat insulating material 100 is filled with foam. Therefore, the heat insulating material 100 does not directly enter the gas vent hole 61 and time is saved, and the gas venting effect lasts longer than when the plate member 63 is not provided. If the degassing effect lasts for a long time, it is difficult for a gas pool to be formed in the hollow portion, and hence a decrease in heat insulation performance due to the gas pool can be suppressed. The same applies to the corner members 20B to 20E.

  Furthermore, according to the heat insulating panel 11, since the intrusion of the heat insulating material 100 into the gas vent hole 61 is suppressed by the plate member 63 in the corner member 20A, it is possible to suppress foam leakage of the heat insulating material 100 to the outside. If the heat insulating material 100 leaks to the outside, an operation for removing the leaked heat insulating material 100 is required. In this case, it is possible to suppress leakage by applying a vent seal (a perforated tape through which only gas passes) to the opening of the vent hole 76, but in that case, the cost of the vent seal and the work of applying the vent seal Necessary. When foam leakage of the heat insulating material 100 to the outside is suppressed, the man-hour for removing the heat insulating material 100 can be reduced, or the cost of the vent seal and the man-hour for attaching the vent seal can be reduced. The same applies to the corner members 20B to 20E.

  Further, according to the heat insulating panel 11, in the corner member 20 </ b> B, the gas below the plate member 81 escapes from the lower portion partitioned by the plate member 81 in the inner opening 78. For this reason, the gas above and below the plate member 81 can be extracted by one gas vent hole 76. That is, according to the heat insulation panel 11, even if the plate member 81 is provided, it is not necessary to provide a separate vent hole for suppressing the occurrence of gas accumulation below the plate member 81. For this reason, the structure for suppressing that a gas pool arises under the board member 81 can be simplified. The same applies to the corner members 20C to 20E.

  Further, according to the heat insulating panel 11, the upper portion of the inner opening 78 of the corner member 20B partitioned by the plate member 81 has a larger opening area than the lower portion, so the upper portion is lower. Compared with the case where the opening area is small compared to this part, the effect of suppressing the penetration of the heat insulating material 100 into the gas vent hole 76 is increased.

  Furthermore, according to the heat insulation panel 11, since the protrusion 79 is provided around the inner opening 78, it is possible to further suppress the intrusion of the heat insulating material 100 into the gas vent hole 76. Thereby, the degassing effect lasts longer.

  Further, according to the heat insulating panel 11, the lateral wall 80 extending from the lower end in the direction along the inner opening 78 of the protrusion 79 to the inner opening 78 is provided, so that the heat insulating material 100 that wraps around the lower end of the protrusion 79 is the gas vent hole 76. You can also deter intrusion. Thereby, the degassing effect lasts longer.

  Furthermore, according to the heat insulation panel 11, in the corner member 20A, plate members are provided on two inner surfaces (the inner surface of the side wall 53 and the inner surface of the side wall 54) that intersect substantially perpendicularly at the corner where the vent hole 61 of the frame member 15 is provided. Since 63 is integrally formed, the degassing effect can be maintained for a long time as compared with the case where there is a gap between the plate member 15 and the two inner surfaces. The same applies to the corner members 20B to 20E.

  Further, when the plate member 63 is integrally formed on the two inner surfaces described above, an effect as a rib that reinforces the side wall 53 and the side wall 54 so as not to warp is also exhibited. Thereby, it can suppress that the clearance gap between the corner member 20A and the edge frame materials 16-18 arises, and the heat insulating material 100 leaks out. The same applies to the corner members 20B to 20E.

  Furthermore, according to the heat insulation panel 11, the area of the plate surface of the plate member 63 is three times or more the opening area of the inner opening 62 of the corner member 20A. If the area of the plate surface of the plate member 63 is small, the heat insulating material 100 may reach the inner opening 62 immediately even if the heat insulating material 100 bypasses the plate member 63. For this reason, in order to maintain the degassing effect for a long time, it is desirable that the area of the plate surface of the plate member 63 is three times or more the opening area of the inner opening 62. The same applies to the corner members 20B to 20E.

  Further, according to the heat insulating panel 11, the gas vent hole 61 of the corner member 20 </ b> A extends to a position that is about 1/3 of the thickness of the heat insulating panel 11. If it does in this way, it can control that a heat insulating material leaks outside at the time of foam filling of heat insulating material 100 compared with a gas vent hole with a short hole length which just made a hole in corner member 20A. . Similarly, since the gas vent hole 76 of the corner member 20B also extends long in the horizontal direction, it is possible to prevent the heat insulating material 100 from leaking to the outside.

  Furthermore, according to the heat insulation panel 11, the gas vent hole 76 is formed in the shape of a thin long hole in the corner member 20B. For example, when the gas vent hole 76 is formed in a round hole shape, the flow resistance is smaller than that in the long hole shape, and the heat insulating material 100 is likely to leak to the outside. On the other hand, when the gas vent hole 76 is formed into a thin elongated hole shape, the flow resistance increases when the heat insulating material 100 is filled with foam, and the foaming is easily finished before the heat insulating material 100 reaches the outside. Thereby, the foaming leak of the heat insulating material 100 to the exterior can be suppressed more reliably.

  Further, according to the heat insulating panel 11, in the corner member 20 </ b> B, the gas vent hole 76 has a larger opening area in the inner opening 78 than in the outer opening 75. In this way, since the opening area of the outlet (outer opening 75) is smaller than the inlet (inner opening 78), the flow resistance of the heat insulating material 100 is increased, and foaming ends before the heat insulating material 100 reaches the outside. It becomes easy. Thereby, the foaming leak of the heat insulating material 100 to the exterior can be suppressed more reliably. The same applies to the corner members 20C to 20E.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above embodiment, as shown in FIG. 6, the gas vent hole 61 of the corner member 20 </ b> A extends in the vertical direction, and the inner opening 62 of the gas vent hole 61 opens downward. Explained in the example. On the other hand, the vent hole may extend substantially horizontally. And the board member may be provided substantially horizontally under the inner side opening opened in the horizontal direction of the vent hole.

  (2) In the above embodiment, as illustrated in FIG. 6, the case where the plate member 63 of the corner member 20 </ b> A is provided substantially horizontally has been described as an example. However, the plate member 63 does not necessarily have to be substantially horizontal. For example, the plate member 63 may be provided so as to extend toward the upper right side or the lower right side in FIG. However, if the angle is too steep, the effect of preventing the heat insulating material 100 from entering the gas vent hole 61 may be reduced. Therefore, the plate member 63 is provided in the range of −45 degrees to +45 degrees with respect to the horizontal plane. It is desirable that

  Similarly, the plate member 81 does not necessarily have to be substantially horizontal. For example, the plate member 81 may be provided so as to extend toward the upper left side or the lower left side in FIG. Alternatively, the plate member 81 may be provided so as to extend diagonally right upward or diagonally downward right in FIG. However, if the angle is too steep, the effect of preventing the heat insulating material 100 from entering the gas vent hole 76 may be reduced, so the plate member 81 is provided in the range of −45 degrees to +45 degrees with respect to the horizontal plane. It is desirable that

  (3) In the above embodiment, the case where the plate member 81 partitions the inner opening 78 in two in the corner members 20B to 20E as illustrated in FIG. 13 has been described as an example. On the other hand, the plate member 81 may not partition the inner opening 78 into two. For example, the plate member 81 may be provided below the lower end of the inner opening 78. However, in this case, since there is a possibility that a gas pool is generated under the plate member 81, it is desirable to provide another gas vent hole under the plate member 81.

  (4) In the above embodiment, in the corner members 20B to 20E, the case where the opening area on one side partitioned by the plate member 81 in the inner opening 78 is different from the opening area on the other side has been described as an example. On the other hand, the opening area on one side and the opening area on the other side partitioned by the plate member 81 may be the same.

  Moreover, in the said embodiment, in square member 20B-20E, the side with a large opening area is the board member 81 among the one side and other side of the inner side opening 78 mentioned above, and the side with a small opening area is under the board member 81. A case where On the other hand, the side with the small opening area may be above the plate member 81 and the side with the large opening area may be below the plate member 81.

  (5) In the above embodiment, the case where the plate member 63 is integrally formed on the inner surface of the frame member 15 in the corner member 20A has been described as an example. However, the plate member 63 is not necessarily formed integrally with the inner surface of the frame member 15, and there may be a gap between the plate member 63 and the inner surface. However, it is desirable that the size of the gap be determined in a range where the degassing effect lasts longer than when the plate member 63 is not provided. This range can be appropriately determined by experiments or the like.

  (6) In the above embodiment, the case where the gas vent holes 76 extend in the shape of a long hole in the vertical direction in the corner members 20B to 20E has been described as an example. However, the vent hole 76 is not limited to a long hole shape, and may be, for example, a circle, a vertically long ellipse, or a horizontally long ellipse.

  (7) In the above embodiment, the gas vent hole 61 having a longer hole length as compared with the gas vent hole in the square member 20 </ b> A, which is just a hole in the wall, has been described as an example. On the other hand, it may be a gas vent hole with a short hole length just formed in the wall. The same applies to the corner members 20B to 20E.

  (8) The configuration of the size, number, shape, and combination of the heat insulating panels 11 and 12 described in the above embodiment is merely an example, and the configuration of other sizes, numbers, shapes, and combinations may be used.

DESCRIPTION OF SYMBOLS 1 ... Prefabricated storage, 1A ... Ceiling, 1B ... Floor, 11 (11A-11C) ... Thermal insulation panel, 15 (15A-15C) ... Frame material, 16, 17, 18, .... Edge frame material, 19 ... Convex frame material, 20 (20A to 20E) ... Square member, 21 ... Concave frame material, 61, 76 ... Gas vent holes, 62, 78 ... Inner opening, 63 ... plate member, 78 ... inner opening, 79 ... projection, 80 ... lateral wall

Claims (5)

An insulation panel,
A pair of surface plates;
A frame member provided between the pair of surface plates;
A heat insulating material foam-filled in a hollow portion formed by the pair of surface plates and the frame member;
With
In the frame material,
A vent hole for venting the gas in the hollow part during foam filling of the heat insulating material;
A plate member that suppresses entry of the heat insulating material into the vent hole during foam filling of the heat insulating material;
Is provided ,
When the posture of the heat insulation panel is set to a posture in which the inner opening that opens in the hollow portion of the vent hole is opened downward, the plate member is positioned substantially horizontally below the inner opening. , Insulation panel. An insulation panel,
A pair of surface plates;
A frame member provided between the pair of surface plates;
A heat insulating material foam-filled in a hollow portion formed by the pair of surface plates and the frame member;
With
In the frame material,
A vent hole for venting the gas in the hollow part during foam filling of the heat insulating material;
A plate member that suppresses entry of the heat insulating material into the vent hole during foam filling of the heat insulating material;
Is provided,
When the posture of the heat insulation panel is set to a posture in which the plate member is substantially horizontal, the inner opening that opens to the hollow portion of the gas vent hole opens in a substantially horizontal direction,
The plate member, when viewed from a direction parallel to the plate surface of said plate member, and partitions the inner opening into two, adiabatic panel. The heat insulation panel according to claim 2 , wherein the inner side opening has a different opening area on one side and the opening area on the other side partitioned by the plate member. The heat insulation panel of Claim 2 or Claim 3 in which the protrusion which suppresses the penetration | invasion to the said vent hole of the said heat insulating material is provided in the circumference | surroundings of the said inner side opening. When the posture of the heat insulation panel is set to a posture in which the plate member is substantially horizontal, the protrusion extends in the vertical direction, and the wall extends substantially horizontally from at least one end in the vertical direction of the protrusion to the inner opening. The heat insulation panel according to claim 4 provided with.

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