JP6621184B2 - Heat insulation member and method for producing heat insulation member - Google Patents

Description

  The present invention relates to a heat insulating member and a method for manufacturing the heat insulating member.

  2. Description of the Related Art Heat insulating members are known that are laid on a wall surface of a building, a wall surface of a plant, a housing surface of other equipment, and the like to insulate an object to be laid. Examples of materials for such covering members include foamed plastic materials (rigid urethane foam, polyethylene foam, phenol foam, etc.), inorganic porous materials (perlite, calcium silicate, etc.), and fiber materials (glass fiber, rock wool, etc.). Are known. Patent Document 1 discloses a heat insulating member (heat insulating panel) in which face materials are laminated on both surfaces of a rigid polyurethane foam.

JP 2006-164342 A

  In the heat insulating member described in Patent Document 1, there is a problem in that it takes time and labor to fix with an adhesive or a fixing tool such as a wire when attaching to an object to be laid. . Moreover, after laying the heat insulating member, there was a problem that it was difficult to remove the heat insulating member from the object to be laid. For this reason, the heat insulation member which can be attached and removed easily was calculated | required.

  The present invention has been made to solve the above-described problems, and can be realized as the following forms.

(1) According to one aspect of the present invention, a heat insulating member is provided. The heat insulating member includes a flat plate-like main body having heat insulating properties, a magnetic body embedded in the main body on the inner surface of the main body, and an exterior sheet that covers the outer surface of the main body.

  According to this configuration, since the heat insulating member has the magnetic body embedded in the main body portion, the magnetic adsorption force of the magnetic body causes the object to be laid, such as a wall surface of a building, a wall surface of a plant, or a housing surface of other equipment. On the other hand, the heat insulating member can be easily attached. Moreover, since it can be removed unlike fixation by an adhesive agent etc., even when installation objects change, for example, replacement of plant equipment, the heat insulating member can be easily removed and reused. Furthermore, when the outer surface of the main body is covered with the exterior sheet, the risk of the main body being eroded can be reduced, and the aesthetic appearance of the heat insulating member can be improved. Thus, according to this structure, the heat insulation member which can be attached and removed easily can be provided.

(2) In the heat insulating member of the above aspect, the side surface of the main body may be exposed without being covered by the exterior sheet. According to this configuration, since the side surface of the main body is not covered with the exterior sheet, for example, when covering a wide range of wall surfaces with a plurality of heat insulating members, the heat leakage on the adjacent surfaces of the heat insulating members is suppressed, and heat insulation is performed. The effect can be improved.

(3) In the heat insulating member of the above aspect, a plurality of the magnetic bodies arranged at equal intervals may be embedded in the main body portion. According to this structure, since the several magnetic body arrange | positioned at equal intervals is embedded, the magnetic attraction force of a magnetic body can be raised.

(4) In the heat insulating member of the above aspect, the magnetic body may be flat or granular. According to this configuration, the shape of the magnetic body can be flat or granular.

(5) In the heat insulation member of the said form, the 2nd exterior sheet | seat which covers the inner surface of the said main-body part and the said magnetic body may be further provided in the inner surface of the said main-body part. According to this structure, it can suppress that a main-body part and a magnetic body, and a laying target object contact with a 2nd exterior sheet. As a result, it is possible to reduce the risk of damage to the object to be laid on the contact surface, and to reduce the risk of erosion associated with the exposure of the main body and the magnetic body on the inner surface. Moreover, while both the outer side surface and inner side surface of a main-body part are covered with an exterior sheet, while being able to improve the beauty | look of a heat insulation member further, it can suppress that a main body part generate | occur | produces curvature.

(6) The heat insulating member of the above aspect further includes a second magnetic body embedded in the main body portion on the outer surface of the main body portion, and the exterior sheet includes the outer surface of the main body portion and the second surface. The magnetic material may be covered. According to this configuration, the magnetic attraction force of the magnetic body can be further strengthened by the second magnetic body. For this reason, when attaching a heat insulation member in piles (it makes several layers), the heat insulation member of each layer can be fixed more firmly.

(7) In the heat insulating member of the above aspect, the main body portion may mainly consist of at least one of polyurethane foam, pearlite, and calcium silicate. According to this structure, the main-body part which has heat insulation can be comprised easily.

(8) According to one form of this invention, the manufacturing method of a heat insulation member is provided. In this manufacturing method, a step of preparing a mold having a first frame and a second frame, a step of fixing a magnetic body to the first frame, and an exterior sheet are fixed to the second frame Foaming the polyurethane foam liquid by inserting a polyurethane foam liquid into one of the first frame and the second frame, pressurizing and pressing the first frame and the second frame; Forming a main body part, and demolding the first frame and the second frame. According to this configuration, a heat insulating member including a flat main body, a magnetic body embedded in the main body on the inner surface of the main body, and an exterior sheet that covers the outer surface of the main body is easily manufactured. Can do.

(9) In the method for manufacturing a heat insulating member according to the above aspect, the mold may be made of metal. According to this configuration, the magnetic body is attracted and fixed to the mold only by placing the magnetic body on the mold.

  The present invention can be realized in various forms other than the heat insulating member. This invention is realizable with forms, such as a manufacturing apparatus which implements the manufacturing method which manufactures the installation provided with the heat insulation member of the said form, the heat insulation member of the said form, and the manufacturing method, for example.

It is a figure which shows the outline | summary of the heat insulation member of 1st Embodiment. It is a bottom view of a heat insulation member. It is sectional drawing in the AA line (FIG. 1) of a heat insulation member. It is a flowchart which shows the procedure of the manufacturing method of a heat insulation member. It is a figure explaining the procedure of the manufacturing method of a heat insulation member. It is a flowchart which shows the other example of the manufacturing method of a heat insulation member. It is a figure which shows the outline | summary of the heat insulation member of 2nd Embodiment. It is sectional drawing in the BB line (FIG. 7) of a heat insulation member. It is a bottom view of the heat insulation member in a 3rd embodiment. It is a bottom view of the heat insulation member in a 4th embodiment. It is a bottom view of the heat insulation member in a 5th embodiment.

A. 1st Embodiment FIG. 1: is a figure which shows the outline | summary of the heat insulation member 1 of 1st Embodiment. FIG. 2 is a bottom view of the heat insulating member 1. FIG. 3 is a cross-sectional view of the heat insulating member 1 taken along the line AA (FIG. 1). 1 to 3 show X, Y, and Z axes corresponding to each other. The X axis corresponds to the width direction of the heat insulating member 1, the Y axis corresponds to the height direction of the heat insulating member 1, and the Z axis corresponds to the depth direction of the heat insulating member 1. The heat insulating member 1 is a heat insulating member that can be easily attached to and detached from an object to be laid, such as a wall surface of a building, a wall surface of a plant, or a housing surface of other equipment, by a magnetic attraction force of a built-in magnetic body. . The heat insulating member 1 includes a main body 10, a magnetic body 20, and an exterior sheet 30.

  The main body 10 is a rectangular flat plate member having heat insulation properties. The main body 10 is a molded product of rigid polyurethane foam in which a foam and a foam stabilizer, a catalyst, a colorant and the like are mixed and foamed with a polyol and polyisocyanate as main components. In addition, instead of polyurethane foam, the main body 10 may be a molded product obtained by mixing pearlite (pearlite powder) with a fiber binder in the main material and press-molding it, and then expanding it by heating. The main molded product may be used.

  The main body 10 has an upper surface 11, a lower surface 12, and four side surfaces 13 to 16. The upper surface 11 corresponds to an “outer surface”, and the lower surface 12 corresponds to an “inner surface”. The dimension of the main-body part 10 can be determined arbitrarily. For example, the length L11 in the X-axis direction can be 330 mm, the length L12 in the Z-axis direction can be 1000 mm, and the length L13 in the Z-axis direction can be 25 to 100 mm.

  The magnetic body 20 is a ferromagnetic body having spontaneous magnetization. The magnetic body 20 of the present embodiment includes a first magnetic body 21 and a second magnetic body 22. The first magnetic body 21 and the second magnetic body 22 are both rectangular and flat members having the same dimensions, and the dimensions can be arbitrarily determined as long as the main body portion 10 or less. For example, the length L21 in the X-axis direction can be 250 mm, and the length L22 in the Z-axis direction can be 25 mm.

  As shown in FIGS. 2 and 3, the first magnetic body 21 is embedded in the main body portion 10 so as to be located on the lower surface 12 (inner surface) of the main body portion 10 and at the end on the + Z-axis side. Yes. Similarly, the second magnetic body 22 is embedded in the main body 10 so as to be located on the lower surface 12 of the main body 10 and at the end on the −Z-axis side. About the 1st magnetic body 21 and the 2nd magnetic body 22, as long as the distance M1 from the side surface of the main-body part 10 is 0 or more, it can determine arbitrarily.

  The exterior sheet 30 is a rectangular sheet-like member having nonflammability. The exterior sheet 30 is composed of an aluminum foil, an inorganic base paper whose main component is hydrous magnesium silicate which is a natural mineral of non-asbestos, paper containing aluminum hydroxide, and the like. The exterior sheet 30 includes an outer side exterior sheet 31 and an inner side exterior sheet 32. Both the outer side surface exterior sheet 31 and the inner side surface exterior sheet 32 have the same dimensions, and the dimensions can be arbitrarily determined as long as they are equal to or less than the main body portion 10. In the present embodiment, the length in the X-axis direction and the length in the Z-axis direction of the outer side exterior sheet 31 and the inner side exterior sheet 32 are the same as those of the main body unit 10.

  As shown in FIG. 3, the outer surface exterior sheet 31 covers the upper surface 11 (outer surface) of the main body 10. The outer side exterior sheet 31 corresponds to an “exterior sheet”. The inner side exterior sheet 32 is formed on the lower surface 12 (inner side surface) of the main body 10 and the lower surface 12 of the main body 10 and the magnetic body 20 embedded in the main body 10 (first magnetic body 21 and second magnetic body 22). And covering. The inner side exterior sheet 32 corresponds to a “second exterior sheet”. This inner side exterior sheet 32 may be omitted. When the inner side exterior sheet 32 is omitted, the main body 10 and the magnetic body 20 are exposed on the lower surface 12. In addition, in the heat insulation member 1 of this embodiment, all the side surfaces 13-16 of the main-body part 10 are exposed without being covered with the exterior sheet 30 (FIG. 3).

  The use of the heat insulating member 1 will be described. The heat insulating member 1 has a magnetic body 20 on the lower surface 12 (inner side surface). For this reason, it can attach easily by making the magnetic body 20 adsorb | suck with respect to metal parts, such as the wall surface of a building, the wall surface of a plant, and the housing | casing surface of other facilities. For example, in the case of a large laying target object, all the wall surfaces of the laying target object can be covered by combining a plurality of heat insulating members 1 and laying them side by side. In this case, the outer surface exterior sheets 31 of the adjacent heat insulating members 1 may be fixed with an adhesive tape or the like.

  According to the heat insulating member 1 described above, since the magnetic body 20 (the first magnetic body 21 and the second magnetic body 22) embedded in the main body portion 10 is included, the wall surface of the building is generated by the magnetic attraction force of the magnetic body 20. The heat insulating member 1 can be easily attached to an object to be laid, such as a wall surface of a plant or the surface of a casing of other equipment. Moreover, since the attachment with respect to the installation object of the heat insulation member 1 can be removed unlike fixation with an adhesive agent etc., for example, when the installation object changes, such as replacement of plant equipment, the heat insulation member 1 is removed. It can be easily removed and reused. Furthermore, the upper surface 11 (outer surface) of the main body 10 is covered with the outer surface exterior sheet 31 (exterior sheet), thereby reducing the possibility that the main body 10 is eroded by rainwater and the like, and improving the beauty of the heat insulating member 1. It can be improved. Thus, according to the heat insulation member 1 of this embodiment, the heat insulation member 1 which can be attached and removed easily can be provided.

  Further, as described above, the side surfaces 13 to 16 of the main body 10 are not covered with the exterior sheet 30 (the outer side exterior sheet 31 and the inner side exterior sheet 32). For this reason, for example, when covering a wide range of wall surfaces with a plurality of heat insulating members 1, heat leakage is suppressed on the adjacent surfaces of the heat insulating members 1 (parts where the side surfaces of the main body 10 are in contact with each other), thereby improving the heat insulating effect. it can.

  Further, the heat insulating member 1 includes a lower surface 12 (inner side surface) of the main body 10 and a lower surface 12 of the main body 10 and a magnetic body 20 (first magnetic body 21 and second magnetic body 22) embedded in the main body 10. And an inner side exterior sheet 32 (second exterior sheet). By this inner side surface exterior sheet 32, it can suppress that the main-body part 10 and the magnetic body 20, and the laying target object contact directly. As a result, it is possible to reduce the risk of damage to the object to be laid on the contact surface, and it is possible to reduce the risk of erosion associated with the exposure of the main body 10 and the magnetic body 20 on the lower surface 12 (inner surface). In addition, since both the upper surface 11 (outer surface) and the lower surface 12 (inner surface) of the main body 10 are covered with the exterior sheet 30, the appearance of the heat insulating member 1 can be further improved and the main body 10 is warped. It can be suppressed.

A-1. Manufacturing Method of Heat Insulating Member 1 FIG. 4 is a flowchart showing a procedure of a manufacturing method of the heat insulating member 1. FIG. 5 is a diagram for explaining the procedure of the method for manufacturing the heat insulating member 1. In step S10, a mold having a lower frame 201 and an upper frame 202 is prepared. As shown in FIG. 5, the lower frame 201 has a box shape, in other words, a hollow quadrangular prism shape whose upper surface is open. The length of the lower frame 201 in the X-axis direction and the length in the Z-axis direction are the same as those of the main body 10 of the heat insulating member 1. The upper frame 202 has a flat plate shape with a handle and is sized to fit into the opening of the lower frame 201. Both the lower frame 201 and the upper frame 202 are made of metal.

  As shown in FIG. 5A, in step S12, the inner side exterior sheet 32 is laid on the lower frame 201. As shown in FIG. 5B, in step S14, the magnetic body 20 (the first magnetic body 21 and the second magnetic body 22) is fixed on the inner surface exterior sheet 32 laid on the lower frame 201. The lower frame 201 of this embodiment is made of metal. For this reason, if the magnetic body 20 is placed on the inner side exterior sheet 32, the magnetic body 20 is attracted and fixed to the lower frame 201 by the magnetic attraction force. As shown in FIG. 5C, in step S16, the outer side exterior sheet 31 is fixed to the upper frame 202. Fixing can be carried out by an arbitrary method. For example, an adhesive tape may be used, or a weakly viscous adhesive may be used.

  In step S18, a rigid polyurethane foam liquid is prepared. Specifically, the polyol stock solution and the polyisocyanate stock solution are weighed using a beaker or the like, and mixed with stirring. Under the present circumstances, you may add a foaming agent, a foam stabilizer, a catalyst, a coloring agent, etc. as needed. As shown in FIG. 5D, in step S20, the prepared rigid polyurethane foam liquid flows into the lower frame 201.

  As shown in FIG. 5E, in step S22, the upper frame 202 is fitted into the lower frame 201 and pressurized. By continuing the pressurization for a predetermined time (for example, 40 minutes), the rigid polyurethane foam liquid foams and the main body 10 is formed. The pressurizing time can be arbitrarily determined depending on the ambient temperature, the temperature of the liquid, the thickness of the main body 10 (FIG. 1: length L13), and the like. The rigid polyurethane foam liquid is foamed to form the main body portion 10, whereby the first magnetic body 21 and the second magnetic body 22 are fixed while being embedded in the main body portion 10, and the outer side exterior sheet is provided. 31 and the inner surface exterior sheet 32 are bonded to the main body 10.

  After the formation of the main body 10, in step S24, the lower frame 201 and the upper frame 202 are removed, the heat insulating member 1 is taken out, and a finishing process is performed. For example, the heat insulating member 1 is formed by removing burrs of hard polyurethane foam generated in a gap between the lower frame 201 and the upper frame 202 with scissors, a cutter, a file, or the like. 4 and 5, the lower frame 201 corresponds to the “first frame”, and the upper frame 202 corresponds to the “second frame”. If the inner side exterior sheet 32 is omitted, step S12 is not necessary. Further, the finishing process may be omitted.

  In this way, the plate-shaped main body 10 and the magnetic body 20 (the first magnetic body 21 and the second magnetic body 22) embedded in the main body 10 on the lower surface 12 (inner side surface) of the main body 10, The heat insulation member 1 provided with the outer surface exterior sheet 31 (exterior sheet) which covers the upper surface 11 (outer surface) of the main-body part 10 can be manufactured easily. Moreover, since the main body part 10 in which the magnetic body 20 is embedded is formed by foaming the hard polyurethane foam liquid, for example, compared with a case in which a part of the main body part 10 is shaved and the magnetic body 20 is embedded. The labor and cost required for the heat insulation member 1 can be reduced and the beauty of the heat insulating member 1 can be improved.

  FIG. 6 is a flowchart showing another example of the method for manufacturing the heat insulating member 1. A difference from the example shown in FIG. 4 is that steps S30 to S34 are provided instead of steps S12 to S16.

  In step S <b> 30, the outer side exterior sheet 31 is fixed to the lower frame 201. Fixing can be carried out by an arbitrary method. For example, an adhesive tape may be used, or a weakly viscous adhesive may be used. In step S <b> 32, the inner side exterior sheet 32 is laid on the upper frame 202. In step S <b> 34, the magnetic body 20 is fixed on the inner surface exterior sheet 32 laid on the upper frame 202. Since the upper frame 202 is made of metal, the magnetic body 20 is attracted and fixed to the upper frame 202 by a magnetic attraction force. Further, the inner surface exterior sheet 32 is also fixed to the upper frame 202 by being restrained by the magnetic body 20.

  Other procedures are as described in FIG. 6, the lower frame 201 corresponds to the “second frame” and the upper frame 202 corresponds to the “first frame”. That is, the manufacturing method of FIG. 4 and the manufacturing method of FIG. In addition, when omitting the inner surface exterior sheet 32, step S32 is unnecessary. 6 can achieve the same effect as the manufacturing method of FIG.

B. 2nd Embodiment FIG. 7: is a figure which shows the outline | summary of the heat insulation member 1a of 2nd Embodiment. FIG. 8 is a cross-sectional view of the heat insulating member 1a taken along line BB (FIG. 7). 7 and 8 also show the same X, Y, and Z axes corresponding to each other as in FIGS. In the heat insulating member 1 of the first embodiment, the magnetic body 20 is embedded in the lower surface 12 (inner surface) of the main body 10. In the heat insulating member 1a of the second embodiment, the magnetic body 20a is embedded in the upper surface 11 (outer surface) in addition to the lower surface 12 (inner surface) of the main body 10a. Only the parts different from the first embodiment will be described below.

  The magnetic body 20 a includes a third magnetic body 23 and a fourth magnetic body 24 in addition to the first magnetic body 21 and the second magnetic body 22. Both the third magnetic body 23 and the fourth magnetic body 24 have a flat plate shape having the same dimensions as the first magnetic body 21. The third magnetic body 23 is embedded in the main body portion 10a so as to be located on the upper surface 11 (outer surface) of the main body portion 10a and at the end on the + Z-axis side. Similarly, the fourth magnetic body 24 is embedded in the main body portion 10a so as to be located on the upper surface 11 of the main body portion 10a and at the end on the −Z-axis side. The third magnetic body 23 and the fourth magnetic body 24 correspond to a “second magnetic body”. The outer side exterior sheet 31 covers the upper surface 11 of the main body 10a and the magnetic body 20 (the third magnetic body 23 and the fourth magnetic body 24) embedded in the main body 10a on the upper surface 11 of the main body 10a. Yes.

  In the case of the manufacturing method shown in FIG. 4, the heat insulating member 1 a may be configured such that the third magnetic body 23 and the fourth magnetic body 24 are further fixed on the outer surface exterior sheet 31 in step S <b> 16. In the case of the manufacturing method shown in FIG. 6, the third magnetic body 23 and the fourth magnetic body 24 may be further fixed on the outer side exterior sheet 31 in step S <b> 30.

  According to the heat insulating member 1a of the second embodiment described above, the heat insulating member 1a includes the third magnetic body 23 and the fourth magnetic body 24 embedded in the main body 10a on the upper surface 11 (outer surface) of the main body 10a. (Second magnetic body). With the third magnetic body 23 and the fourth magnetic body 24, the magnetic attractive force of the magnetic body 20a can be further strengthened. For this reason, for example, when a high heat insulation effect is required, when a plurality of heat insulation members 1a are stacked in the height direction (Y-axis direction) and attached (multiple layers), the heat insulation members 1a of each layer are more firmly fixed. be able to.

C. Third Embodiment FIG. 9 is a bottom view of a heat insulating member 1b according to a third embodiment. Also in each figure after FIG. 9, the X, Y, and Z axes corresponding to each other as in FIGS. In the heat insulating member 1 according to the first embodiment, the magnetic body 20 has two magnetic bodies. In the heat insulating member 1b of the third embodiment, the magnetic body 20b has seven magnetic bodies 21 to 27. The first magnetic body 21 to the seventh magnetic body 27 are all flat plate shapes having the same dimensions, and the length L31 in the X-axis direction and the length L32 in the Z-axis direction can be arbitrarily determined. Further, each of the first magnetic body 21 to the seventh magnetic body 27 is embedded in the lower surface 12 (inner side surface) of the main body portion 10b in a state of being arranged at equal intervals. The interval M2 between the magnetic bodies 20b can be arbitrarily determined.

  Even with the heat insulating member 1b of the third embodiment described above, the same effects as those of the first embodiment described above can be obtained. Further, according to the heat insulating member 1b of the third embodiment, the first magnetic body 21 to the seventh magnetic body 27 (a plurality of magnetic bodies) arranged at equal intervals are embedded, so that the magnetic adsorption of the magnetic body 20b is performed. You can increase your power. Note that the number of magnetic bodies (seven) is merely an example, and any number can be adopted.

D. 4th Embodiment FIG. 10: is a bottom view of the heat insulation member 1c in 4th Embodiment. In the heat insulating member 1 of the first embodiment, the magnetic body 20 has two magnetic bodies. In the heat insulating member 1c of the fourth embodiment, the magnetic body 20c is composed of only one magnetic body. The magnetic body 20c has a flat plate shape, and the length L41 in the X-axis direction and the length L42 in the Z-axis direction can be arbitrarily determined. Further, the magnetic body 20c is embedded in the lower surface 12 (inner side surface) of the main body portion 10c. Thus, the magnetic body 20c may be comprised with the single magnetic body. Even with the heat insulating member 1c of the fourth embodiment described above, the same effects as those of the first embodiment described above can be obtained.

E. 5th Embodiment FIG. 11: is a bottom view of the heat insulation member 1d in 5th Embodiment. In the heat insulating member 1 of the first embodiment, the magnetic body 20 has two magnetic bodies, and each magnetic body (the first magnetic body 21 and the second magnetic body 22) has a rectangular shape and a flat plate shape. In the heat insulating member 1d of the fifth embodiment, the magnetic body 20d has a large number of magnetic bodies 21 to 2n (n is an integer of 1 or more), and each of the magnetic bodies 21 to 2n is granular with the same size. The particle size L5 of each of the magnetic bodies 21 to 2n can be arbitrarily determined, and any mode can be adopted from a particle having a particle size of several centimeters to a powder having a particle size of several μm. Thus, the magnetic body 20d may be granular (including so-called powder). Even with the heat insulating member 1d of the fifth embodiment described above, the same effects as those of the first embodiment described above can be obtained.

F. The present invention is not limited to the above-described embodiment, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.

  In the said embodiment, an example was shown about the structure of the heat insulation member. However, the configuration of the heat insulating member can be variously modified. For example, the shape of the main body portion does not have to be a rectangular shape, and may be an arbitrary shape such as a polygonal shape or a circular shape. For example, when a plurality of magnetic bodies are embedded in the main body, each magnetic body may have a different size, a different shape, or a shape other than a flat plate shape or a granular shape. For example, when a plurality of magnetic bodies are embedded in the main body, each magnetic body may not be arranged at equal intervals (may be randomly arranged). For example, the side surface of the main body may be covered with an exterior sheet.

  In the said embodiment, an example (hand mixing foaming and molding) was shown about the manufacturing method of a heat insulation member. However, the manufacturing method of the heat insulating member can be variously modified. For example, simple foaming (cylinder type), injection method, floss injection method, spray method, or the like may be used as the foaming method, and slab molding, laminate molding, or the like may be used as the molding method. For example, instead of a metal mold, for example, a resin mold or a wooden mold may be used as the mold.

  You may combine suitably the structure of the said embodiment and the structure of the said modification. For example, you may provide the magnetic body of the aspect illustrated by 3rd-5th embodiment also on the outer surface of a main-body part, as 2nd Embodiment demonstrated. The material of the main body described above is preferably a material specified in Japanese Industrial Standards JIS A 9501: 2014, JIS A 9510: 2009, JIS A 9511: 2009 and JIS A 9504: 2011, for example, a foamed plastic material (rigid urethane) Foam, polyethylene foam, phenol foam, etc.), inorganic porous material (perlite, calcium silicate, etc.) and fiber material (glass fiber, rock wool, etc.).

  As mentioned above, although this aspect was demonstrated based on embodiment and a modification, embodiment of an above-described aspect is for making an understanding of this aspect easy, and does not limit this aspect. This aspect can be changed and improved without departing from the spirit and scope of the claims, and equivalents are included in this aspect. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c, 1d ... Thermal insulation member 10, 10a, 10b, 10c ... Main-body part 11 ... Upper surface 12 ... Lower surface 13-16 ... Side surface 20, 20a, 20b, 20c, 20d ... Magnetic body 21 ... 1st magnetism Body 22 ... second magnetic body 30 ... exterior sheet 31 ... outer side exterior sheet 32 ... inner side exterior sheet 201 ... lower frame 202 ... upper frame

Claims (2)

A method of manufacturing a heat insulating member,
Preparing a mold having a flat first frame and a box-shaped second frame;
Fixing a magnetic body to the first frame;
Fixing the exterior sheet of the same size as the bottom surface to the bottom surface of the second frame;
Flowing a polyurethane foam liquid into the second frame;
Forming the main body embedded with the magnetic material by inserting and pressurizing the first frame and the second frame to foam the polyurethane foam liquid; and
Demolding the first frame and the second frame;
A method for manufacturing a heat insulating member. It is a manufacturing method of the heat insulation member according to claim 1 ,
The said formwork is a manufacturing method of the heat insulation member which is metal.

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