JP2004211905A - Vacuum heat insulating material and outfit for protection against cold using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material removing restriction on the shape of an applying object and being wide in application. <P>SOLUTION: The vacuum heat insulating material 10 is formed in such a manner that a plurality of cores 11 formed of glass fibers with a thickness of approximately 5 mm and approximately formed into a regular octagon are covered with a gas barrier film 12, and an internal part is decreased in pressure. The cores 11 are arranged in a grid-like state that at a part positioned between the adjoining cores 11, folding lines 10a, 10b, 10c, and 10d extending in four directions of a vertical direction, a lateral direction, and directions extending obliquely at an angle of 45° in parallel to the respective sides of the octagonal shape of the core 11, and so that the cores 11 adjacent in a vertical (a horizontal) direction are opposed to a horizontal (a vertical) side and the grids are situated at intervals of given intervals longer than at a distance that a length quadruple as long as the thickness of the film 12 to cover the cores 11 is added to the length of one side of the core 11 approximately in an octagonal shape. A thermal deposition section 13 of the film 12 is situated at the periphery of the core 11 so that each of a plurality of the cores 11 is positioned in an independent space. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a foldable vacuum heat insulating material and a cold protection device using the vacuum heat insulating material.

  As a conventional foldable vacuum heat insulating material, as shown in FIG. 16, three rectangular cores 1 are covered with a gas barrier film 2 and the inside of the film 2 is depressurized. The films located between the adjacent cores 1 are heat-welded so that each of the three cores 1 is located in an independent space. In addition, there has been a vacuum heat insulating material 4 that can be bent with the heat-welded portion 3 located between the adjacent core materials 1 as a bending curve 4a (for example, see Patent Document 1).

As shown in FIG. 17, this vacuum heat insulating material 4 is provided inside the outer case 5 of a heat insulating box such as a refrigerator. The outer box 5 is obtained by bending a metal plate 6 into a U-shape. The vacuum heat insulating material 4 is formed by adding the vacuum heat insulating material 4 to the metal plate 6 before being bent into the U shape. 17 is formed by bending a metal plate 6 on which the vacuum heat insulating material 4 is bonded and fixed to the inner surface of the outer box 5 so as to correspond to the folding curve 4a of FIG. The outer box 5 provided with the vacuum heat insulating material 4 on the inner surface is manufactured.
JP-A-7-98090

  However, in the conventional vacuum heat insulating material 4, the plurality of rectangular cores 1 are disposed on substantially the same plane at a predetermined distance from each other in one direction, and a heat-welded portion located between the adjacent cores 1 is provided. 3 are substantially parallel to each other, the object to which the conventional vacuum heat insulating material 4 can be applied (adhered or affixed) has a flat surface, a cross-sectional shape and a longitudinal shape. The side of an object that does not change direction (eg, the side of a polygonal prism-shaped object with a cross section of three or more corners, the inside of a polygonal cylindrical object with a cross section of three or more corners) Side or outer side), for example, it has been difficult to use the above-mentioned conventional vacuum insulation material instead of feathers and cotton in the cold protection equipment.

  It is a first object of the present invention to provide a vacuum heat insulating material which has few restrictions on the shape of an object to be applied and is therefore versatile.

  A second object of the present invention is to provide a cold protection device using a vacuum heat insulating material.

  In order to achieve the first object, the vacuum heat insulating material of the present invention is formed by covering a plurality of hexagonal core materials with a gas barrier film and depressurizing the inside of the film, and the plurality of core materials are: The portions located between the adjacent core members are arranged in a staggered manner and separated from each other by a predetermined distance so that a bent curve in three directions can be formed.

  Thereby, the vacuum heat insulating material can be bent in three directions, and therefore, the shape of the object to be applied is less restricted than the conventional vacuum heat insulating material. Therefore, a versatile vacuum heat insulating material can be provided. Further, the vacuum heat insulating material that can be bent in three directions has a relatively high heat insulating performance because the ratio of the area occupied by the core material is large. Therefore, there is an effect that the balance between flexibility and heat insulation performance is good.

  Further, in order to achieve the first object, another vacuum heat insulating material of the present invention is formed by covering a plurality of octagonal core materials with a gas barrier film and depressurizing the inside of the film, and The core members are arranged in a lattice or staggered manner so as to be separated from each other by a predetermined distance so that a bent line in four directions can be formed at a portion located between the adjacent core members.

  Thereby, the vacuum heat insulating material can be bent in four directions, so that the shape of the object to be applied is less restricted than the conventional vacuum heat insulating material. Therefore, a versatile vacuum heat insulating material can be provided. Further, the vacuum heat insulating material that can be bent in four directions has a relatively high heat insulating performance because the ratio of the area occupied by the core material is large. Therefore, there is an effect that the balance between flexibility and heat insulation performance is good.

  In order to achieve the second object, the present invention provides a cold weather protector, wherein the vacuum heat insulating material of the present invention is provided on clothing, and the vacuum heat insulating material of the present invention has three or four directions. It is possible to secure the flexibility suitable for cold weather protection by selecting the size of the core material properly, so that it is thin and has high heat insulation performance utilizing the high heat insulation performance of vacuum heat insulation material. Tools can be provided.

  The vacuum heat insulating material of the present invention can bend the heat insulating material in three or four directions. Therefore, the shape of the object to be applied is smaller than that of the conventional vacuum heat insulating material, so that the vacuum heat insulating material can be used widely. . Further, the vacuum heat insulating material that can be bent in three or four directions has an effect that the heat insulating performance is relatively high and the balance between the flexibility and the heat insulating performance is good because the ratio of the area occupied by the core material is large.

  In addition, since the cold protection device of the present invention can secure flexibility suitable for the cold protection device by appropriately selecting the size of the core material, the thin and heat insulating performance utilizing the high heat insulating performance of the vacuum heat insulating material can be secured. Can provide high cold protection.

  The invention of a vacuum heat insulating material according to claim 1 of the present invention is constituted by covering a plurality of hexagonal core materials with a gas barrier film and depressurizing the inside of the film, wherein the plurality of core materials are adjacent to the core. They are arranged in a zigzag pattern and are separated from each other by a predetermined distance so that a fold curve in three directions can be formed at a portion located between the members.

  Thereby, the vacuum heat insulating material can be bent in three directions, and therefore, the shape of the object to be applied is less restricted than the conventional vacuum heat insulating material. Therefore, a versatile vacuum heat insulating material can be provided. Further, the vacuum heat insulating material that can be bent in three directions has a relatively high heat insulating performance because the ratio of the area occupied by the core material is large. Therefore, there is an effect that the balance between flexibility and heat insulation performance is good.

  Further, the invention of a vacuum heat insulating material according to claim 2 is configured by covering a plurality of octagonal cores with a gas barrier film and depressurizing the inside of the film, and the plurality of cores are adjacent to the cores. They are arranged at a predetermined distance from each other in a lattice or staggered pattern so that a bent line in four directions can be formed at a portion located between them.

  Thereby, the vacuum heat insulating material can be bent in four directions, so that the shape of the object to be applied is less restricted than the conventional vacuum heat insulating material. Therefore, a versatile vacuum heat insulating material can be provided. Further, the vacuum heat insulating material that can be bent in four directions has a relatively high heat insulating performance because the ratio of the area occupied by the core material is large. Therefore, there is an effect that the balance between flexibility and heat insulation performance is good.

  Further, the invention of a vacuum heat insulating material according to claim 3 is a heat-sealing portion of a film around the core material so that each of the plurality of core materials in the invention according to claim 1 or 2 is located in an independent space. Is provided.

  Thereby, in addition to the function and effect of the invention of claim 1 or 2, a heat-welded portion of the film is provided around the core so that each of the plurality of cores is located in an independent space. Therefore, even if the degree of vacuum in the space containing the specific core material decreases, it does not decrease to the degree of vacuum in the space containing the other core material, minimizing the decrease in insulation performance be able to.

  According to a fourth aspect of the present invention, there is provided a vacuum heat insulating material according to the third aspect, wherein a hole is provided in the film so that a heat-welded portion having a predetermined width is left between adjacent core members. In addition to the functions and effects of the invention according to claim 3, since a hole is formed in a portion of the vacuum heat insulating material that is less affected by a decrease in heat insulating performance, air is provided from one surface of the vacuum heat insulating material to the other surface. For applications that require drainage of water or water, applications that require the passage of objects (for example, pipes and other parts) due to the location of application, and composite insulation that combines vacuum insulation and foam insulation Therefore, the present invention can be applied to a place where it is necessary to flow a foamed heat insulating material from one surface of the vacuum heat insulating material to the other surface. For example, when this vacuum heat insulating material is provided on clothing to provide a cold protection device, sweat vapor can be released to the outside from this hole, and the inside of the cold protection device is comfortable without stuffiness.

  According to a fifth aspect of the present invention, there is provided the cold protection equipment according to any one of the first to fourth aspects, wherein the clothing is provided with the vacuum heat insulating material according to any one of the first to fourth aspects. Since the vacuum heat insulating material can be bent in three or four directions, by appropriately selecting the size of the core material, it is possible to secure flexibility suitable for cold weather protection. This makes it possible to provide a thin, high-heat-insulation winterizer that takes advantage of the above.

  Further, the invention of a vacuum heat insulating material according to claim 6 is the one in which the vacuum heat insulating material according to the invention of claim 5 is removably attached to clothing, so that it is not necessary to have a high heat insulating property due to a warm climate. Also, there is an effect that the vacuum heat insulating material can be removed from the cold protection equipment at the time of cleaning.

  Hereinafter, an embodiment of a vacuum heat insulating material of the present invention and a cold protector using the vacuum heat insulating material will be described.

(Embodiment 1)
FIG. 1 is a plan view showing Embodiment 1 of the vacuum heat insulating material of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG.

  The vacuum heat insulating material 10 of the present embodiment is formed by covering a core material 11 made of 16 substantially regular octagonal glass fibers having a thickness of about 5 mm with a gas barrier film 12 and depressurizing the inside of the film 12. The sixteen core materials 11 are located between the adjacent core materials 11, and are parallel to the respective sides of the octagon of the core material 11, and have four vertical, horizontal, and oblique folding curves 10 a and 10 b. , 10c, and 10d, the core material 11 adjacent in the vertical (horizontal) direction and the horizontal (vertical) side face each other in a lattice shape, and the core material 11 having a substantially octagonal shape. The 16 core members 11 are arranged at predetermined intervals slightly larger than the length obtained by adding four times the thickness of the film 12 covering the core member 11 to the length of one side. The heat-welded portion of the film 12 around the core 11 so as to be located at 3 in which is provided.

  As the film 12, a laminated film having an aluminum vapor-deposited layer or an aluminum foil layer as an intermediate layer can be used. Further, the core material 11 may be formed by stacking sheet-like glass fibers to form a multilayer.

  The vacuum heat insulating material 10 of the present embodiment is a heat-welded portion 13 of the film 12 located between the adjacent core materials 11, in four directions of a vertical direction, a horizontal direction, and an oblique direction of 45 degrees with respect to the vertical or horizontal direction. It can be bent in the vertical and horizontal directions more easily than in the diagonal direction.

  As described above, the vacuum heat insulating material 10 of the present embodiment is formed by covering a plurality of substantially regular octagonal core materials 11 with the gas barrier film 12 and depressurizing the inside of the film 12. Are arranged at predetermined intervals in the form of a lattice so that bent lines 10a, 10b, 10c, and 10d in four directions can be formed at portions located between the core materials. Since the heat-welded portion 13 of the film 12 is provided around the core material 11 so as to be located in the space, the vacuum heat insulating material 10 can be bent in four directions, so that it is more applicable than the conventional vacuum heat insulating material. There are few restrictions on the shape of the object to be processed, and the application is wide.

  Further, even if the degree of vacuum in the space containing the specific core material 11 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 11, and the reduction in heat insulation performance is minimized. Can be suppressed.

  In the present embodiment, since the film 12 located on the outer peripheral portion of the vacuum heat insulating material 10 and the film 12 located between the adjacent core materials 11 are all heat-welded, the width of the heat-welded portion 13 is wide. Therefore, it is possible to considerably reduce the possibility that the degree of vacuum in the space in which each core material 11 enters through the heat welding portion 13 is reduced.

  Further, since the shape of the core material 11 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 11 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

  Although the vacuum heat insulating material 10 of the present embodiment has four core materials 11 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

  Further, when the vacuum heat insulating material 10 is applied, it can be used after being cut into a required size and shape. Preferably, part 13 is cut.

(Embodiment 2)
Hereinafter, a vacuum heat insulating material according to a second embodiment of the present invention will be described. However, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  FIG. 3 is a plan view showing Embodiment 2 of the vacuum heat insulating material of the present invention.

  The vacuum heat insulating material 20 of the present embodiment is formed by covering a core material 11 made of 13 approximately regular octagonal glass fibers having a thickness of about 5 mm with a gas barrier film 12 and depressurizing the inside of the film 12. The 13 core members 11 are located between the adjacent core members 11, and are parallel to the respective sides of the octagon of the core member 11, and are bent in the vertical, horizontal and oblique directions 20 a and 20 b. , 20c, and 20d, the core material 11 adjacent to the core material 11 in a 45 ° staggered direction and the oblique sides thereof are opposed to each other, and the length of one side of the substantially octagonal core material 11 is set to each other. Are separated by a predetermined distance slightly larger than the sum of the thickness of the film 12 covering the core material 11 and four times the thickness of the film 12, so that each of the 13 core materials 11 is located in an independent space. Heat-welded portion 1 of film 12 around core 11 In which is provided.

  The vacuum heat insulating material 20 of the present embodiment is a heat-welded portion 13 of the film 12 located between the adjacent core materials 11, in four directions of a vertical direction, a horizontal direction, and an oblique direction of 45 degrees with respect to the vertical or horizontal direction. Although it can be bent in an oblique direction, it is easier to bend than a vertical or horizontal direction.

  As described above, the vacuum heat insulating material 20 of the present embodiment is formed by covering a plurality of substantially regular octagonal core materials 11 with the gas barrier film 12 and depressurizing the inside of the film 12, and the plurality of core materials 11 Are arranged in a staggered manner so as to form fold curves 20a, 20b, 20c, and 20d in four directions at portions located between the core materials to be formed, and each of the plurality of core materials 11 is independent. Since the heat-welded portion 13 of the film 12 is provided around the core material 11 so as to be located in the space, the vacuum heat insulating material 20 can be bent in four directions, so that it is more applicable than the conventional vacuum heat insulating material. There are few restrictions on the shape of the object to be processed, and the application is wide.

  Further, even if the degree of vacuum in the space containing the specific core material 11 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 11, and the reduction in heat insulation performance is minimized. Can be suppressed.

  In the present embodiment, since the film 12 located on the outer peripheral portion of the vacuum heat insulating material 10 and the film 12 located between the adjacent core materials 11 are all heat-welded, the width of the heat-welded portion 13 is wide. Therefore, it is possible to considerably reduce the possibility that the degree of vacuum in the space in which each core material 11 enters through the heat welding portion 13 is reduced.

  Further, since the shape of the core material 11 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 11 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

  Although the vacuum heat insulating material 20 of the present embodiment has the thirteen core materials 11 arranged in a staggered manner, the present invention is not limited to this.

  Further, when the vacuum heat insulating material 20 is applied, it can be cut into a required size and shape, but at the time of cutting, the heat welding portion of the film 12 is used in order to minimize a decrease in heat insulating performance. Preferably, part 13 is cut.

(Embodiment 3)
Hereinafter, a vacuum heat insulating material according to a third embodiment of the present invention will be described. However, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  FIG. 4 is a plan view showing Embodiment 3 of the vacuum heat insulating material of the present invention, and FIG. 5 is a sectional view taken along line BB of FIG.

  The vacuum heat insulating material 30 of the present embodiment is formed by covering the core material 11 made of 16 approximately regular octagonal glass fibers having a thickness of about 5 mm with a gas barrier film 12 and depressurizing the inside of the film 12. The sixteen core members 11 are formed between the adjacent core members 11 and can form four vertical, horizontal, and diagonal folding curves in parallel with each octagonal side of the core member 11. As described above, the core material 11 adjacent to the core material 11 in the vertical (horizontal) direction and the horizontal (vertical) side are opposed to each other, and the length of the core material 11 is set to one side of the substantially octagonal core material 11. Are separated by a predetermined distance slightly larger than the sum of the thickness of the film 12 covering the film 11 and four times the thickness of the film 12, and the cores 11 are positioned so that each of the 16 cores 11 is located in an independent space. A heat-welded portion 33 of the film 12 is provided around the periphery of the core material 11. Between, and, on the outer peripheral side of the core material 11 sandwiched between the heat seal parts 33, and has a non-heat seal parts 34 where the film 12 is not thermally welded.

  The vacuum heat insulating material 30 of the present embodiment bends in four directions of a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction at a portion of the film 12 located between the adjacent core materials 11. However, it is easier to bend in the vertical and horizontal directions than in the diagonal directions.

  As described above, the vacuum heat insulating material 30 of the present embodiment is formed by covering a plurality of substantially regular octagonal core materials 11 with the gas barrier film 12 and depressurizing the inside of the film 12, and the plurality of core materials 11 Are arranged in a lattice so as to be separated from each other by a predetermined distance so as to form a bent line in four directions at a portion located between the core materials to be formed, so that each of the plurality of core materials 11 is located in an independent space. Since the heat-welded portion 33 of the film 12 is provided around the core material 11, the vacuum heat insulating material 30 can be bent in four directions, so that the shape of the object to be applied is more limited than the conventional vacuum heat insulating material. There are few and wide use.

  Further, even if the degree of vacuum in the space containing the specific core material 11 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 11, and the reduction in heat insulation performance is minimized. Can be suppressed.

  In addition, since the non-heat-welded portion 34 to which the film 12 is not heat-welded is provided between the adjacent core materials 11 and on the outer peripheral side of the core material 11 with the heat-welded portion 33 interposed therebetween, Since the pattern 33 is easy to be patterned, the welding apparatus can be reduced in size and simplified, and the welding operation can be easily performed.

  Further, since the shape of the core material 11 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 11 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

  Although the vacuum heat insulating material 30 of the present embodiment has four core materials 11 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

  In addition, like the vacuum heat insulating material 30a of the modification of the present embodiment shown in FIG. 6, the heat-welded portions 33a of the film 12 provided around the core material 11 are independently provided for each of the core materials 11. The dough-shaped portion may be provided as a substantially regular octagonal donut surrounding the core material 11 and the non-heat-welded portion 34a may be used as the portion of the film 12 other than the heat-welded portion 33a.

  Further, when the vacuum heat insulating material 30 is applied, it can be cut into a required size and shape, but at the time of cutting, in order to minimize a decrease in heat insulating performance, a heat-welded portion of the film 12 is used. It is preferable to cut the part of the non-thermally welded part 33 or 33.

  When cutting the vacuum heat insulating material 30a according to the modification of the present embodiment shown in FIG. 6, the non-heat-welded portion 34a of the film 12 may be cut in order to minimize a decrease in heat insulating performance. preferable.

(Embodiment 4)
Hereinafter, a vacuum heat insulating material according to a fourth embodiment of the present invention will be described. However, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  FIG. 7 is a plan view showing Embodiment 4 of the vacuum heat insulating material of the present invention, and FIG. 8 is a sectional view taken along line CC of FIG.

  The vacuum heat insulating material 40 of the present embodiment is formed by covering a core material 11 of about 5 mm thick made of glass fibers molded into approximately regular octagons with a gas barrier film 12 and depressurizing the inside of the film 12. The sixteen core members 11 are formed between the adjacent core members 11 and can form four vertical, horizontal, and diagonal folding curves in parallel with each octagonal side of the core member 11. As described above, the core material 11 adjacent to the core material 11 in the vertical (horizontal) direction and the horizontal (vertical) side are opposed to each other, and the length of the core material 11 is set to one side of the substantially octagonal core material 11. Are separated by a predetermined distance slightly larger than the sum of the thickness of the film 12 covering the film 11 and four times the thickness of the film 12, and the cores 11 are positioned so that each of the 16 cores 11 is located in an independent space. 11, a heat-welded portion 43 of the film 12 is provided. As the heat seal parts 43 of specified width remains between the core 11, is provided with a circular hole 44 in the film 12.

  The vacuum heat insulating material 40 of the present embodiment is a heat-sealed portion 43 of the film 12 located between the adjacent core materials 11 and is formed in four directions, that is, a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction. It can be bent in the vertical and horizontal directions more easily than in the diagonal direction.

  As described above, the vacuum heat insulating material 40 of the present embodiment is formed by covering a plurality of substantially regular octagonal core materials 11 with the gas barrier film 12 and depressurizing the inside of the film 12, and the plurality of core materials 11 are adjacent to each other. Are arranged in a lattice so as to be separated from each other by a predetermined distance so as to form a bent line in four directions at a portion located between the core materials to be formed, so that each of the plurality of core materials 11 is located in an independent space. Since the heat-welded portion 43 of the film 12 is provided around the core material 11, the vacuum heat insulating material 40 can be bent in four directions, so that the shape of the object to be applied is more limited than the conventional vacuum heat insulating material. There are few and wide use.

  Further, even if the degree of vacuum in the space containing the specific core material 11 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 11, and the reduction in heat insulation performance is minimized. Can be suppressed.

  In the present embodiment, since the film 12 located on the outer peripheral portion of the vacuum heat insulating material 40 and the portion of the film 12 located between the adjacent core materials 11 are all heat-welded, the width of the heat-welded portion 43 is wide. Therefore, it is possible to considerably reduce the possibility that the degree of vacuum in the space in which each core material 11 enters through the heat welding portion 43 is reduced.

  Further, since the shape of the core material 11 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 11 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

  In addition, the vacuum heat insulating material 40 of the present embodiment is provided with a hole 44 in the film 12 such that a heat-welded portion 43 having a predetermined width remains between the vacuum heat insulating material 40 and the adjacent core material 11. Since the hole 44 is formed in a portion where the influence of the deterioration of the heat insulation performance is small, there is a need to discharge air and water from one surface of the vacuum heat insulating material 40 to the other surface, In applications where it is necessary to pass an object (for example, a part such as a pipe), or in a composite heat insulating material combining a vacuum heat insulating material 40 and a foam heat insulating material, for convenience of manufacture, one side of the vacuum heat insulating material to the other side thereof. In addition, the present invention can be applied to a place where it is necessary to flow foam insulation. For example, when the vacuum heat insulating material 40 is provided on clothing to provide a cold protection, sweat vapor can be released to the outside through the holes 44, and the inside of the cold protection is comfortable without being stuffy.

  In addition, although the vacuum heat insulating material 40 of the present embodiment has four core materials 11 arranged in the vertical and horizontal directions, the present invention is not limited to this.

  Further, when the vacuum heat insulating material 40 is applied, it can be cut into a required size and shape, but when cutting, the heat-welded portion of the film 12 is used in order to minimize a decrease in heat insulating performance. It is preferable to cut the portion 43.

(Embodiment 5)
Hereinafter, a vacuum heat insulating material according to a fifth embodiment of the present invention will be described. However, the same components as those in the first or third embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 9 is a plan view showing Embodiment 5 of the vacuum heat insulating material of the present invention, and FIG. 10 is a cross-sectional view taken along line DD of FIG.

  The vacuum heat insulating material 50 of the present embodiment is formed by covering a core material 11 made of glass fibers molded into approximately 16 regular octagons and having a thickness of about 5 mm with a gas barrier film 12 and depressurizing the inside of the film 12. The sixteen core members 11 are formed between the adjacent core members 11 and can form four vertical, horizontal, and diagonal folding curves in parallel with each octagonal side of the core member 11. As described above, the core material 11 adjacent to the core material 11 in the vertical (horizontal) direction and the horizontal (vertical) side are opposed to each other, and the length of the core material 11 is set to one side of the substantially octagonal core material 11. Are separated by a predetermined distance slightly larger than the sum of the thickness of the film 12 covering the film 11 and four times the thickness of the film 12, and the cores 11 are positioned so that each of the 16 cores 11 is located in an independent space. 11 is provided with a heat-welded portion 53 of the film 12 and is adjacent thereto. A non-heat-welded portion 55 where the film 12 is not heat-welded is provided between the materials 11 and on the outer peripheral side of the core material 11 with the heat-welded portion 53 interposed therebetween, and is provided between the adjacent core materials 11. A hole 54 is provided in a non-heat-welded portion 55 of the film 12 so that a heat-welded portion 53 having a predetermined width remains.

  The vacuum heat insulating material 50 of the present embodiment is bent in four directions of a vertical direction, a horizontal direction, and a diagonal direction of 45 degrees with respect to the vertical or horizontal direction at a portion of the film 12 located between the adjacent core materials 11. However, it is easier to bend in the vertical and horizontal directions than in the diagonal directions.

  As described above, the vacuum heat insulating material 50 of the present embodiment is formed by covering the plurality of substantially regular octagonal core materials 11 with the gas barrier film 12 and depressurizing the inside of the film 12, and the plurality of core materials 11 Are arranged in a lattice so as to be separated from each other by a predetermined distance so as to form a bent line in four directions at a portion located between the core materials to be formed, so that each of the plurality of core materials 11 is located in an independent space. Since the heat-welded portion 53 of the film 12 is provided around the core material 11, the vacuum heat insulating material 50 can be bent in four directions, so that the shape of the object to be applied is more limited than the conventional vacuum heat insulating material. There are few and wide use.

  Further, even if the degree of vacuum in the space containing the specific core material 11 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 11, and the reduction in heat insulation performance is minimized. Can be suppressed.

  Further, since the non-heat-welded portion 55 where the film 12 is not heat-welded is provided between the adjacent core materials 11 and on the outer peripheral side of the core material 11 with the heat-welding portion 53 interposed therebetween, Since the pattern 53 is easy to be patterned, the welding apparatus can be reduced in size and simplified, and the welding operation can be easily performed.

  Further, since the shape of the core material 11 is substantially a regular octagon, as a vacuum heat insulating material that can be bent in four directions, the ratio of the area occupied by the core material 11 is large, so that the heat insulating performance is relatively high. Therefore, the balance between flexibility and heat insulation performance is good.

  Further, the vacuum heat insulating material 50 of the present embodiment is provided with a hole 54 in the film 12 so that the heat-welded portion 53 having a predetermined width remains between the vacuum heat insulating material 50 and the adjacent core material 11. Because the hole 54 is formed in a portion where the influence of the deterioration of the heat insulating performance is small, the air or water needs to be discharged from one surface of the vacuum heat insulating material 50 to the other surface. In applications where it is necessary to pass an object (for example, a part such as a tube), or in a composite heat insulating material combining a vacuum heat insulating material 50 and a foam heat insulating material, for convenience of manufacture, one side of the vacuum heat insulating material to the other side. In addition, the present invention can be applied to a place where it is necessary to flow foam insulation. For example, when the vacuum heat insulating material 50 is provided on clothing to provide a cold protection, sweat vapor can be released to the outside from the holes 54, and the inside of the cold protection is comfortable without stuffiness.

  Although the vacuum heat insulating material 50 of the present embodiment has four core materials 11 arranged in each of the vertical and horizontal directions, the present invention is not limited to this.

  Further, the heat-welded portion 53 of the film 12 provided around the core 11 may be a substantially regular octagonal donut that surrounds the core 11 and is provided independently for each of the cores 11. .

  Further, the edge of the hole 54 is preferably heat-sealed to improve the sealing property of the film 12. When the hole 54 is used for mounting or the like, the film 12 is not damaged from the edge of the hole 54. Preferably, the edge of the hole 54 is reinforced.

  Further, when the vacuum heat insulating material 50 is applied, it can be cut into a required size and shape, but at the time of cutting, the heat welding portion of the film 12 is used in order to minimize a decrease in heat insulating performance. It is preferable to cut off the portion 53 or the non-heat-welded portion 55.

(Embodiment 6)
Hereinafter, a vacuum heat insulating material according to a sixth embodiment of the present invention will be described. However, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  FIG. 11 is a plan view showing Embodiment 6 of the vacuum heat insulating material of the present invention.

  The vacuum heat insulating material 100 of the present embodiment is formed by covering a core material 101 having a thickness of about 5 mm made of glass fibers molded into approximately regular hexagons with a gas barrier film 12 and depressurizing the inside of the film 12. The sixteen core members 101 are arranged so that two sides thereof are parallel to each other in the horizontal direction, and are located between the adjacent core members 101, and are perpendicular to each of the hexagonal sides of the core member 101. The adjacent core material 101 faces in a staggered manner (honeycomb shape) so as to form bent curves 100a, 100b, and 100c in three directions, which are oblique and left and right at 60 degrees with respect to the vertical direction. And, they are separated from each other by a predetermined distance slightly larger than a size obtained by adding about four times the thickness of the film 12 covering the core material 101 to about 0.87 times the length of one side of the substantially hexagonal core material 101. These 16 core materials 10 are arranged. The one in which the heat seal parts 103 of substantially regular hexagonal donut-shaped film 12 is provided around the core members 101 so as to be positioned in a separate space, respectively.

  The vacuum heat insulating material 100 of the present embodiment is bent in three directions of a vertical direction and an oblique direction of 60 degrees left and right with respect to the vertical direction at the heat-welded portion 103 of the film 12 located between the adjacent core materials 101. Can be.

  As described above, the vacuum heat insulating material 100 of the present embodiment is formed by covering a plurality of substantially regular hexagonal core materials 101 with the gas barrier film 12 and depressurizing the inside of the film 12, and the plurality of core materials 101 are adjacent to each other. Are arranged in a staggered manner and separated from each other by a predetermined distance so as to form fold curves 100a, 100b, and 100c in three directions at portions located between the core materials 101 to be formed. Since the heat-welded portion 103 of the substantially regular hexagonal donut-shaped film 12 is provided around the core material 101 so as to be located inside, the vacuum heat insulating material 100 can be bent in three directions. The shape of the object to be applied is less restricted than the vacuum heat insulating material, and the application is wide.

  Further, even if the degree of vacuum in the space containing the specific core material 101 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 101, and the deterioration of the heat insulation performance is minimized. Can be suppressed.

  In the present embodiment, since the film 12 located on the outer peripheral portion of the vacuum heat insulating material 100 and the portion of the film 12 located between the adjacent core members 101 are all heat-welded, the width of the heat-welded portion 103 is wide. Therefore, the possibility that the degree of vacuum in the space in which each core material 101 enters through the heat welding portion 103 can be considerably reduced.

  In addition, since the heat-welded portion 103 is easy to repeat a substantially regular hexagonal donut-shaped pattern or to be patterned into a honeycomb shape, the welding device can be reduced in size and simplified, and the welding operation can be easily performed.

  Further, when the vacuum heat insulating material 100 is applied, it can be cut into a required size and shape, and at the time of cutting, in order to minimize a decrease in heat insulating performance, a heat-welded portion of the film 12 is used. Preferably, the portion 103 is cut.

(Embodiment 7)
Hereinafter, a vacuum heat insulating material according to a seventh embodiment of the present invention will be described. However, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  FIG. 12 is a plan view showing Embodiment 7 of the vacuum heat insulating material of the present invention.

  The vacuum heat insulating material 110 of the present embodiment is formed by covering a core material 111 made of 16 glass fibers molded into approximately regular hexagons having a thickness of about 5 mm with a gas barrier film 12 and depressurizing the inside of the film 12. The sixteen core members 111 are arranged so that two sides thereof are parallel to each other in the vertical direction, and are located between the adjacent core members 111, and are parallel to the hexagonal sides of the core member 111. In order to form fold curves 110a, 110b and 110c in three directions of 60 degrees left and right with respect to the vertical direction, the adjacent core members 111 are staggered and separated by a predetermined distance so that the corners face each other. A heat-welded portion 113 of the film 12 is provided around the core 111 so that each of the 16 cores 111 is located in an independent space. Heat welding of specified width between 113 As remains, the heat seal parts 113 of the film 12 positioned between the three adjacent core members 111 and has a circular hole 114.

  The vacuum heat insulating material 110 according to the present embodiment is bent in three directions of a vertical direction and an oblique direction of 60 degrees left and right with respect to the vertical at the heat-welded portion 113 of the film 12 located between the adjacent core materials 111. Can be.

  As described above, the vacuum heat insulating material 110 of the present embodiment is formed by covering a plurality of substantially regular hexagonal core materials 111 with the gas barrier film 12 and depressurizing the inside of the film 12, and the plurality of core materials 111 are adjacent to each other. Are arranged in a staggered manner and separated from each other by a predetermined distance so as to form fold curves 110a, 110b, and 110c in three directions at portions located between the core materials 111, and each of the plurality of core materials 111 is an independent space. Since the heat-welded portion 113 of the film 12 is provided around the core material 111 so as to be located inside, the vacuum heat insulating material 110 can be bent in three directions, so that it is more applicable than the conventional vacuum heat insulating material. There are few restrictions on the shape of the object, and it is widely used.

  Further, even if the degree of vacuum in the space containing the specific core material 111 decreases, the degree of vacuum does not decrease to the degree of vacuum in the space containing the other core material 111, and the decrease in the heat insulation performance is minimized. Can be suppressed.

  In the present embodiment, since the film 12 located on the outer peripheral portion of the vacuum heat insulating material 110 and the portion of the film 12 located between the adjacent core members 111 are all heat-welded, the width of the heat-welded portion 113 is wide. Therefore, it is possible to considerably reduce the possibility that the degree of vacuum in the space in which each core material 111 enters through the heat welding portion 113 is reduced.

  In the present embodiment, sixteen core materials 111 are arranged so that two sides thereof are parallel in the vertical direction, and the hexagonal shape of each core material 111 is located between adjacent core materials 111. In order to form bent curves 110a, 110b, and 110c in three directions parallel to the sides and in the vertical direction and at an angle of 60 degrees left and right with respect to the vertical, the adjacent core material 111 faces in a staggered manner so that the corners face each other. , Arranged at predetermined intervals, the arrangement of the sixth embodiment (where the two sides are arranged so as to be parallel in the horizontal direction, and at the portion located between the adjacent core materials, each hexagonal shape of the core material) In order to form a fold curve in three directions or more diagonally at 60 degrees left and right with respect to the vertical, vertical and vertical sides, the adjacent core material and the sides are separated by a predetermined distance so as to face the adjacent core material. Arrangement), the interval between the core materials 111 can be narrowed, and the ratio of the area occupied by the core materials 111 can be increased. Because, it can be increased relatively insulation performance.

  Further, the vacuum heat insulating material 110 of the present embodiment has a hole 114 provided in the film 12 so that a heat-welded portion 113 having a predetermined width remains between the core material 111 and the adjacent core material 111. The hole 114 is formed in a portion where the influence of the decrease in the heat insulation performance is small, so that the air or water needs to be discharged from one surface of the vacuum heat insulating material 110 to the other surface, In applications where it is necessary to pass an object (for example, a part such as a pipe) or in a composite insulation material in which the vacuum insulation material 110 and the foam insulation material are combined, for convenience of manufacture, one side of the vacuum insulation material to the other side. In addition, the present invention can be applied to a place where it is necessary to flow foam insulation. For example, when the vacuum heat insulating material 110 is provided on clothing to provide a cold protection, sweat vapor can be released to the outside from the holes 114, and the inside of the cold protection can be comfortable without stuffiness.

  Further, in the present embodiment, as in Embodiment 4, a plurality of substantially regular octagonal cores are arranged in a lattice and holes are formed in the heat-welded portions of the film 12 located between four adjacent cores. The number of holes 114 can be increased as compared with the case of providing.

  Further, when the vacuum heat insulating material 110 is applied, it can be cut into a required size and shape, but at the time of cutting, the heat welding portion of the film 12 is used in order to minimize a decrease in heat insulating performance. It is preferable to cut the portion 113.

(Embodiment 8)
Hereinafter, a vacuum heat insulating material according to an eighth embodiment of the present invention will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  FIG. 13 is a plan view showing Embodiment 8 of the vacuum heat insulating material of the present invention.

  The vacuum heat insulating material 120 of the present embodiment is formed by covering a core material 121 made of 28 glass fibers molded into a substantially regular hexagon and having a thickness of about 5 mm with a gas barrier film 12 and depressurizing the inside of the film 12. The 28 core members 121 are arranged so that two sides thereof are parallel to each other in the vertical direction, and are located between the adjacent core members 121 and are parallel to each side of the hexagon of the core member 121. And a substantially regular hexagon such that sides of adjacent core members 121 at predetermined intervals are opposed to each other so as to form bent curves 120a, 120b, and 120c in three directions that are oblique to the vertical and 60 degrees left and right with respect to the vertical. Are arranged in a staggered manner and separated by a predetermined distance, and each of the 28 core materials 121 is located in an independent space. So that the film around the core material 121 The two heat-welded portions 123 are provided, and furthermore, the heat-welded portions 123 having a predetermined width are left between the adjacent heat-welded portions 121 and the positions between the six cores 121 arranged in the annular shape in each set. The heat sealing portion 123 of the film 12 to be formed has a circular hole 124.

  The vacuum heat insulating material 120 of the present embodiment can be bent in three directions of a vertical direction and an oblique direction of 60 degrees left and right with respect to the vertical at the heat-welded portion 123 of the film 12 located between the adjacent core materials. it can.

  As described above, the vacuum heat insulating material 120 of the present embodiment is formed by covering a plurality of substantially regular hexagonal core materials 121 with the gas barrier film 12 and depressurizing the inside of the film 12, and the plurality of core materials 121 are adjacent to each other. Six cores 121 (a predetermined distance apart such that the sides are opposed to each other) are arranged in a ring so as to form fold curves 120a, 120b, 120c in three directions at a portion located between the cores 121 to be formed. A pair of cores 121) arranged side by side are arranged in a staggered manner and separated from each other by a predetermined distance, and a plurality of cores 121 are arranged around the cores 121 so as to be located in independent spaces. Since the heat-welded portion 123 of the film 12 is provided, the vacuum heat insulating material 120 can be bent in three directions, so that the shape of the object to be applied is less restricted than the conventional vacuum heat insulating material, and the application is wide. .

  In addition, even if the degree of vacuum in the space containing the specific core material 121 is reduced, the degree of vacuum is not reduced to the degree of vacuum in the space containing the other core material 121. Can be suppressed.

  In this embodiment, since the film 12 located on the outer peripheral portion of the vacuum heat insulating material 120 and the film 12 located between the adjacent core material 121 are all heat-welded, the width of the heat-welded portion 123 is wide. Therefore, the possibility that the degree of vacuum in the space in which each core material 121 enters through the heat welding portion 123 can be significantly reduced.

  In the present embodiment, a plurality of core materials 121 are arranged in a direction in which two sides are parallel to each other in the vertical direction, and each of the hexagonal sides of the core material 121 is located between adjacent core materials 121. In order to form bent curves 120a, 120b, and 120c in three directions in parallel with the vertical direction and the left and right at 60 degrees with respect to the vertical direction, the sides of the core materials 121 adjacent to each other at a predetermined interval are opposed to each other. Six sets of substantially regular hexagonal cores 121 arranged in a ring form a set, and the sets are arranged in a staggered manner and separated by a predetermined distance, so that the area occupied by the cores 121 can be increased and relatively insulated. Performance can be improved.

  Further, the vacuum heat insulating material 120 according to the present embodiment is provided with a hole 124 in the film 12 so that a heat-welded portion 123 having a predetermined width remains between the core material 121 and the adjacent core material 121. Since the hole 124 is formed in a portion where the influence of the deterioration of the heat insulating performance is small, the air or water needs to be discharged from one surface of the vacuum heat insulating material 120 to the other surface, or due to the application location. In applications where it is necessary to pass an object (for example, a part such as a pipe), or in a composite insulation material in which the vacuum insulation material 120 and the foam insulation material are combined, for convenience of manufacture, one surface of the vacuum insulation material to the other surface is used. In addition, the present invention can be applied to a place where it is necessary to flow foam insulation. For example, when the vacuum heat insulating material 120 is provided on clothing to provide a cold protection, sweat vapor can be released to the outside through the holes 124, so that the inside of the cold protection can be comfortable without stuffiness.

  In the present embodiment, the size of the hole 124 can be larger than that of the seventh embodiment, and can be increased to the size of a circle inscribed in a substantially regular hexagon of the core material 121, but contrary to the seventh embodiment. , Holes 124 can be drilled.

  Further, when the vacuum heat insulating material 120 is applied, it can be used after being cut into a required size and shape, but at the time of cutting, in order to minimize a decrease in heat insulating performance, a heat-welded portion of the film 12 is used. It is preferable to cut the portion 123.

(Embodiment 9)
Hereinafter, a cold protector using a vacuum heat insulating material according to a ninth embodiment of the present invention will be described. However, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  FIG. 14 is a front view showing a ninth embodiment of the cold protection equipment using the vacuum heat insulating material of the present invention, and FIG. 15 is a rear view of the cold protection equipment using the vacuum heat insulation material of the same embodiment.

  The cold protection equipment 200 of the present embodiment is provided with the vacuum heat insulating material 10 of the first embodiment in which the number and size of the core material and the shape of the film are adjusted for the jacket 201 in a jacket 201 as clothing. is there.

  The vacuum heat insulating material 10 may be manufactured by manufacturing a rectangular vacuum heat insulating material of a predetermined size and then cutting the vacuum heat insulating material according to the jacket 201. In this case, the vacuum heat insulating material 10 may be manufactured such that the cut and useless portion of the core material is not arranged in the film from the beginning.

  Here, since the vacuum heat insulating material 10 can be bent in four directions, by appropriately selecting the size of the core material, it is possible to secure the flexibility suitable for the easy-to-move cold protection material. It is possible to provide a thin, high-heat-insulation cold protector utilizing high heat-insulating performance.

  When the vacuum heat insulating material 10 is inserted into the bag portion formed on the jacket 201, the vacuum heat insulating material 10 can be made invisible, and the vacuum heat insulating material 10 is inserted into the bag portion formed on the jacket 201. Just by doing so, the jacket 201 and the vacuum heat insulating material 10 can be easily integrated without fear of damaging the vacuum heat insulating material 10, and the removal and replacement of the vacuum heat insulating material 10 can be relatively easily performed.

  In addition, if the vacuum heat insulating material 10 is detachably attached to the jacket 201 by a magic tape (registered trademark), a fastener, a button, a hook, or other fasteners, a high temperature insulation is not required due to a warm climate. At the time of cleaning and cleaning, it is convenient to remove the vacuum insulation from the cold protection equipment.

  Although the cold protection device of the present embodiment uses the vacuum heat insulating material 10 of the first embodiment, any of the vacuum heat insulating materials of the second to eighth embodiments may be used. A vacuum heat insulating material having holes as in Embodiments 4, 5, 7, and 8 can be used. In the case where a perforated vacuum heat insulating material is used, sweat vapor can be discharged to the outside from the perforated hole, and the inside of the cold protection equipment is comfortable without being stuffy.

  In the present embodiment, the description has been made of the jacket, but the present invention can be applied to other clothing.

  The vacuum heat insulating material of the present invention can bend the vacuum heat insulating material in three or four directions. Therefore, the shape of the object to which the vacuum heat insulating material is applied is smaller than that of the conventional vacuum heat insulating material, so that the vacuum heat insulating material is widely used. For example, by appropriately selecting the size of the core material, it is possible to secure flexibility suitable for cold protection, so that it can be applied to a thin and high heat insulation performance utilizing the high insulation performance of the vacuum insulation material. . In addition, vacuum insulation materials that have holes in areas where the effect of heat insulation performance is less likely to be reduced can be used for applications that require air or water to be discharged from one side of the vacuum insulation material to the other, In applications where it is necessary to pass an object (for example, a part such as a pipe) for convenience, or in a composite insulation material in which vacuum insulation material and foam insulation material are combined, for convenience of manufacture, one side of the vacuum insulation material and It can also be applied to places where foam insulation needs to flow over the surface.

FIG. 2 is a plan view showing Embodiment 1 of the vacuum heat insulating material of the present invention. 1 is a sectional view taken along line AA of FIG. FIG. 4 is a plan view showing a second embodiment of the vacuum heat insulating material of the present invention. FIG. 4 is a plan view showing Embodiment 3 of the vacuum heat insulating material of the present invention. BB sectional drawing of FIG. Plan view showing a vacuum heat insulating material according to a modification of the third embodiment. FIG. 4 is a plan view showing a vacuum heat insulating material according to a fourth embodiment of the present invention. FIG. 7 is a sectional view taken along line CC of FIG. 7. 5 is a plan view showing a fifth embodiment of the vacuum heat insulating material of the present invention. FIG. 9 is a sectional view taken along line DD of FIG. 9. FIG. 7 is a plan view showing Embodiment 6 of the vacuum heat insulating material of the present invention. FIG. 14 is a plan view showing a vacuum heat insulating material according to a seventh embodiment of the present invention. FIG. 14 is a plan view showing a vacuum heat insulating material according to an eighth embodiment of the present invention. A front view showing a ninth embodiment of a cold protector using the vacuum heat insulating material of the present invention. Rear view of cold protection equipment using vacuum insulation material of the same embodiment Plan view of conventional vacuum insulation Sectional view of a state where the conventional vacuum heat insulating material is provided on an outer box of a heat insulating box.

Explanation of reference numerals

10, 20, 30, 40, 50 Vacuum heat insulating material 10a, 10b, 10c, 10d Fold curve 11, 101, 111, 121 Core material 12 Film 13, 33, 43, 53, 103, 113, 123 Heat welding part 20a, 20b, 20c, 20d Fold curves 34, 34a, 55 Non-heat-welded portions 44, 54, 114, 124 Holes 100, 110, 120 Vacuum insulation materials 100a, 100b, 100c Fold curves 110a, 110b, 110c Fold curves 120a, 120b, 120c Folded curve 200 Cold protection 201 Clothing (jacket)

Claims (6)

  A plurality of hexagonal cores are covered with a gas-barrier film, and the inside of the film is decompressed. The plurality of cores form three-fold folds at portions located between adjacent cores. Vacuum insulation materials that are arranged in a staggered manner and separated from each other by a predetermined distance so that they can be formed.   A plurality of octagonal cores are covered with a gas barrier film, and the inside of the film is decompressed. The plurality of cores form four-fold folds at portions located between adjacent cores. Vacuum insulation material that is arranged in a grid or staggered form so as to be separated from each other by a predetermined distance.   The vacuum heat insulating material according to claim 1, wherein a heat-welded portion of a film is provided around the core material such that each of the plurality of core materials is located in an independent space.   4. The vacuum heat insulating material according to claim 3, wherein a hole is provided in the film so that a heat-welded portion having a predetermined width remains between adjacent core materials.   A cold protection device comprising clothing provided with the vacuum heat insulating material according to any one of claims 1 to 4.   The cold protection device according to claim 5, wherein the vacuum heat insulating material is detachably attached to the clothing.

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