JP2010131289A - Heat storage material bedclothing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat storage material bedclothing which includes a package cover to be easily obliquely stretched and a heat storage material pack to be hardly obliquely stretched and is protected from a mechanical damage by oblique tension force even when the oblique tension force is added to the heat storage material bedclothing. <P>SOLUTION: A planar reinforcing material 70 with ventilation and shape stabilization which is substantially isotropical with respect to the tension force is fixedly arranged in a sandwich state on at least one of the upper cover 10 and the lower cover 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heat storage material bedding, and more particularly, to a heat storage material bedding in which a heat storage material is housed inside a bedding such as a mat or a pillow and provides a feeling of cooling or warm to a bedding user.

  In order to cool humans and pets whose body temperature has risen in summer and the like, heat storage material beddings such as cooling mats and cooling pillows have been proposed. On the other hand, such a heat storage material bedding is used as a warm sensation mat or a warm sensation pillow in order to warm a human or a pet whose body temperature has dropped in winter.

  In the heat storage material bedding, a plurality of storage chambers capable of storing the heat storage material pack are formed inside the packaging cover. The heat storage material bedding has a configuration in which a corresponding heat storage material pack is loaded into each storage chamber of the packaging cover.

  To use the heat storage material bedding as a cooling sensation mat, open the opening of the packaging cover, take out the heat storage material pack from the opening, and put the heat storage material into a cooling gel state with a certain degree of fluidity. The pack is cooled in the refrigerator. And after that, it is comprised so that the heat storage material pack can be put in and out freely, returning and using the heat storage material pack in each storage chamber of a packaging cover (for example, refer patent document 1).

  However, the cooling structure disclosed in Patent Document 1 causes the user to feel uncomfortable because the heat storage material pack moves in the storage chamber of the packaging cover. Therefore, the applicant of the present application has attached the heat storage material pack to the packaging cover by sewing, bonding, or heat fusion so that the heat storage material pack stored in the storage chamber of the packaging cover does not shift in the storage chamber. It has been proposed to be fixed (see, for example, Patent Document 2).

  By the way, as a packaging cover for a heat storage material bedding, a cloth such as a woven fabric, a knitted fabric or a lace is generally used from the viewpoint of touch and texture. These fabrics are interlaced with a certain regularity of yarns or fibers, and have a feature that the degree of elongation in the oblique direction is larger than the degree of elongation in the vertical and horizontal directions. That is, fabrics such as woven fabrics, knitted fabrics, and laces that are used as packaging covers for heat storage material bedding tend to stretch in an oblique direction.

  Moreover, the heat storage material pack is generally configured by hermetically sealing after filling a resin-made bag body with a water-absorbing superabsorbent polymer gel substance. That is, the resin bag body used for the heat storage material pack is composed of a resin film having isotropic shape stability against tensile force, and has a characteristic that it is difficult to stretch in an oblique direction. Yes.

When the tensile force in the diagonal direction acts on the heat storage material bedding that incorporates the heat storage material pack that is difficult to extend in the diagonal direction in the storage room of the packaging cover that is easy to extend in the diagonal direction, the packaging cover expands greatly The resin bag is only slightly elongated. As described above, when the resin bag body is fixed to the packaging cover by sewing, adhesion, or heat fusion, the resin bag body and the packaging cover are applied when an oblique tensile force is applied. The thermal storage material bedding is subject to mechanical damage that causes the thermal storage pack to be removed from the packaging cover or to be destroyed in the worst case. End up.
JP 2007-289594 A Japanese Patent Application No. 2008-1993311

  Therefore, the technical problem to be solved by the present invention is that even when a tensile force in an oblique direction acts on a heat storage material bedding comprising a packaging cover that is easy to extend in an oblique direction and a heat storage material pack that is difficult to extend in an oblique direction. It is to provide a heat storage material bedding that is protected from mechanical damage due to an oblique tensile force.

  In order to solve the above technical problem, the heat storage material bedding according to the present invention has the following characteristics.

That is, the heat storage material bedding according to the present invention is:
A heat storage material pack in which a gel-like heat storage material is enclosed in a resin film;
A packaging cover for fixedly storing the heat storage material pack,
The packaging cover is a heat storage material bedding composed of a cloth having a greater degree of elongation in the oblique direction than the degree of elongation in the vertical and horizontal directions,
A planar reinforcing material having air permeability and having substantially isotropic shape stability against tensile force is fixed in a sandwich shape on at least one side of the upper cover or the lower cover of the packaging cover. It is characterized by being.

  According to the above configuration, the heat storage material pack having shape stability that is substantially isotropic with respect to the tensile force is fixedly fixed in the cloth packaging cover having a greater degree of elongation in the oblique direction than in the vertical and horizontal directions. In the stored heat storage material bedding, a planar reinforcing material having air permeability and substantially isotropic shape stability against tensile force is provided on at least one side of the upper cover or the lower cover of the packaging cover. It is fixed in a sandwich shape. When an oblique tensile force is applied to the heat storage material bedding, the reinforcing material having substantially isotropic shape stability receives the oblique tensile force, thereby reinforcing the oblique tensile force. Can function as a material. Therefore, since the expansion | extension of the cloth packaging cover with a large diagonal extension degree can be suppressed, the adhering part which fixed the thermal storage material pack to the packaging cover will come off, or the thermal storage material pack may be destroyed in the worst case. It is possible to prevent the occurrence of mechanical damage.

  The cloth packaging cover having a greater extension in the oblique direction than the extension in the vertical and horizontal directions is selected from woven fabric, knitted fabric, and lace.

  Generally, if something is interposed between the heat storage material pack and the packaging cover, the air permeability is lowered, so that condensation on the heat storage material pack (as a result, generation of mold) is likely to occur. Therefore, the planar reinforcing material having air permeability and substantially isotropic shape stability with respect to the tensile force is selected from a nonwoven fabric, a resin film with a vent hole, or a paper with a vent hole.

  The packaging cover may be configured such that one heat storage material pack is stored in a single storage chamber, but from the viewpoint of easy folding of the heat storage material bedding, the packaging cover has a plurality of storage chambers, A thermal storage material pack is accommodated in each of the chambers. Since the boundary portion between a certain storage chamber and the adjacent storage chamber functions as a fold, it is extremely easy to fold and store the heat storage material bedding.

  The reinforcing material may be a collection of small or medium sized pieces fitted to the size of a plurality of storage chambers, but the reinforcing material of the small sized pieces or medium sized pieces is cut or fixed to the packaging cover. Requires a lot of cost and effort. Therefore, it is preferable that the size of the reinforcing material is a single piece of large size that roughly fits the size of the packaging cover.

  When the packaging cover is made of a material having a high degree of elongation such as knitting or lace, the knitting or lace may hang down due to the weight of the heat storage material pack. Therefore, when the packaging cover is made of a material with a high degree of elongation, it is preferable to dispose a reinforcing material on the side facing the packaging cover with a high degree of elongation.

  The heat conduction characteristics differ depending on the thickness of the reinforcing material, and the heat is less likely to be transmitted as the thickness is thicker, so that the heat from the heat storage material pack can be easily cut off. Conversely, the thinner the thickness, the easier the heat from the heat storage material pack is transmitted. A user may want to obtain a different sensible temperature with one heat storage material bedding. Therefore, when the reinforcing material is fixed on both sides of the upper cover and the lower cover, it is preferable that the thickness of the reinforcing material is different.

  Heat (cold heat or heat) from the heat storage material pack of the heat storage material bedding is transmitted to the upper cover and the lower cover in substantially the same manner. That is, heat is transferred in substantially the same way toward the user side and the non-user side. It is preferable that the reinforcing material has a heat reflection function so that heat transfer to the non-user side is suppressed and preferential heat transfer to the user side is realized. Therefore, it is preferable that the reinforcing material includes an aluminum coating or an aluminum foil from the viewpoint of cost and heat reflection ability.

  Various health assisting functions such as a function of generating heat, a function of generating negative ions, a deodorizing / adsorbing / absorbing function, and the like can be imparted to the heat storage material bedding. Thus, the reinforcement can be configured to include a health aid element.

  Health aids provide ozone, heat or negative ions.

  Below, although the heat storage material mat 1 as a heat storage material bedding which concerns on 1st embodiment of this invention is demonstrated in detail, referring FIG.1 and 2, the heat storage material bedding 1 of this invention is a cold feeling or warmth. The present invention is applicable to various beddings such as a heat storage mat, a heat storage pillow, and a pet sheet that provide any of the feelings.

  FIG. 1 is a schematic diagram for explaining the basic structure of a heat storage material mat 1 according to the present invention. In FIG. 1, the heat storage material pack 60 accommodated therein is indicated by a one-dot chain line so that the internal structure of the heat storage material mat 1 can be understood. Moreover, the vertical direction fixing | fixed part 40 and 41 and the horizontal direction fixing | fixed part 50 and 51 are shown with the dotted line. FIG. 2 is a partial cross-sectional view of the heat storage material mat 1 according to the first embodiment.

  As shown schematically in FIG. 1, the heat storage material mat 1 having a substantially rectangular shape is formed by superimposing an upper cover 10 and a lower cover 20 that wrap the heat storage material pack 60 and a nonwoven fabric 70 as a reinforcing material in the vertical direction. The peripheral edge portions of the peripheral edge portions are sewn, and the vertical direction fixing portions 41 on the peripheral edge portion side extending in the vertical direction are formed on the left and right sides. The upper cover 10 and the lower cover 20 are integrated into a bag shape to form the packaging cover 3. When the bag-shaped packaging cover 3 is created, a single nonwoven fabric 70 is fixed in a sandwich shape on the lower cover 20 side. The longitudinal direction fixing portion 41 on the peripheral edge side is formed by sewing, adhesion, or heat fusion. The vertical and horizontal sizes of the upper cover 10 and the lower cover 20 and the vertical and horizontal sizes of the nonwoven fabric 70 are approximately the same. From the viewpoint of workability and cost, it is preferable to use a single non-woven fabric 70 having approximately the same size as the packaging cover 3, but a patch using a plurality of small-sized or medium-sized non-woven fabrics 70 smaller than the packaging cover 3. It is also possible to connect them like a work and configure them as one piece.

  The upper cover 10 and the lower cover 20 constituting the cloth packaging cover 3 are made of various materials such as cotton, rayon, and polyester, and are appropriately selected from woven fabric, knitted fabric, and lace. The packaging cover 3 made of such a cloth is composed of an intersecting structure having a certain regular repeating structure when viewed microscopically, and has a certain direction with respect to elongation characteristics. That is, the cloth packaging cover 3 has a characteristic that the extension in the oblique direction is larger than the extension in the vertical and horizontal directions. For example, a woven fabric of bias (20 cm between grips and 5 cm grip width) where warps and wefts intersect at right angles was pulled in the longitudinal or lateral direction with a load of 14.7 N in accordance with JIS-L-1096. The elongation rate at the time is about 1.5 to about 3%, whereas the elongation rate when pulled in the bias direction is about 11%. Thus, the cloth packaging cover 3 made of woven fabric, knitted fabric, lace, or the like extends greatly in the oblique direction rather than in the vertical and horizontal directions.

  On the other hand, the nonwoven fabric 70 as a reinforcing material is a cloth without weaving or knitting. After creating a web that is a thin sheet-like fiber assembly, the nonwoven fabric 70 is manufactured by bonding or bonding (chemical bonding, thermal bonding, or mechanical bonding) between fibers in the web by any method. Is done. Therefore, microscopically, the nonwoven fabric 70 according to the present invention is composed of an irregular (random) interlaced structure that does not have a certain regular repeating structure, and has no directionality with respect to elongation characteristics. . That is, the nonwoven fabric 70 has a characteristic in which the degree of elongation in the vertical and horizontal directions and the degree of elongation in the oblique direction are almost the same, in other words, has a substantially isotropic shape stability with respect to the tensile force. Therefore, even if it has the structure where fibers were combined or adhered, what the fibers are oriented in one direction is not included in the concept of the nonwoven fabric 70 according to the present invention. The nonwoven fabric 70 is composed of synthetic fibers such as polypropylene, polyester, acrylic, rayon and nylon, natural fibers such as wool and cotton, and the like. Moreover, as the nonwoven fabric 70, a melt blown nonwoven fabric, a spunbond nonwoven fabric, a spun needle nonwoven fabric, or the like can be used.

Further, for example, a polyester spunbonded nonwoven fabric made of Asahi Kasei Fiber used as an example of the nonwoven fabric 70 (weighing about 30 to about 40 g / m ² and having a thickness of about 0.1 to 0.45 mm / 100 g weight) has a weight of about 55. To air permeability of about 400 cm ³ / cm ² · sec. In addition, in terms of the thinness and strength of the nonwoven fabric 70, the preferred air permeability of the nonwoven fabric 70 is about 140 to about 220 cm ³ / cm ² · sec. Therefore, since the nonwoven fabric 70 has a desired air permeability necessary for preventing dew condensation, it basically does not require a through hole. However, when it is desired to positively ensure a larger air permeability, a plurality of air holes penetrating in the thickness direction are provided. It can also be provided.

  When the nonwoven fabric 70 as a reinforcing material is thick, the flexibility is lowered and it is difficult to bend and use as a bedding. When the thickness is thin, the effect as a reinforcing material is reduced. Accordingly, the thickness of the nonwoven fabric 70 as the reinforcing material is preferably about 0.1 to about 1 mm, and more preferably about 0.15 to about 0.25 mm. In the polyester spunbonded nonwoven fabric 70 (20 cm between grips, 5 cm grip width), the elongation rate when stretched in the longitudinal direction or the lateral direction with a load of 14.7 N in accordance with JIS-L-1096 is about 0.5 to It is about 0.9%, and the stretch rate when pulled in the bias direction is about 0.6%. Therefore, the nonwoven fabric 70 has substantially isotropic shape stability with respect to the tensile force.

  Between the vertical direction fixing part 41 on the peripheral edge part side and the vertical fixing part 40 on the adjacent central side (non-periphery edge part side), or on each vertical fixing part 40 on the central side (non-peripheral edge part side). A storage chamber 30 is formed between each. Each storage chamber 30 extends in parallel to the vertical fixing portions 40 and 41. In FIG. 1, the vertical fixing portions 41 on the left and right peripheral edge portions, the seven vertical fixing portions 40 on the non-peripheral edge portions, and the eight storage chambers 30 are illustrated. Further, in the heat storage material mat 1, for example, the horizontal side is about 100 cm and the vertical side is about 90 cm. The present invention is not limited to such specific numbers.

  In each accommodation chamber 30 of the packaging cover 3 configured in this manner, the heat storage material pack 60 is accommodated. The heat storage material pack 60 accommodated in the accommodation chamber 30 is fixed to the packaging cover 3 by sewing, adhesion, or heat fusion. As a result, laterally adhering portions 51 are formed at the upper and lower peripheral edge portions of the heat storage material mat 1. Further, the lateral fixing portion 50 is appropriately formed at the boundary portion 68 that defines the boundary between the heat storage material pack elements 66 by sewing, bonding, or heat fusion.

  The heat storage material pack 60 forms a bag-like body by superimposing upper and lower laminated resin films 62 in which a nylon resin film and a polyethylene resin film are laminated, and thermocompression-bonding (heat-sealing) three sides. After the heat storage material 64 is sealed in the space, the opening is closed by thermocompression bonding. The heat storage material pack 60 is dimensioned so that it can be inserted into the storage chamber 30. As the laminate resin film 62, an ethylene / vinyl acetate copolymer, an ethylene / methyl methacrylate copolymer, or the like can be used. When a laminated resin film 62 (20 cm between grips, 5 cm grip width) laminated with a nylon resin film and a polyethylene resin film is pulled in the vertical or horizontal direction with a load of 14.7 N in accordance with JIS-L-1096 Is about 0.7 to about 0.9%, and the stretch rate when pulled in the bias direction is about 0.7%. Therefore, the heat storage material pack 60 has substantially isotropic shape stability with respect to the tensile force.

  In the laminate resin film 62, the thickness of the nylon resin film is increased so that the gas components of the plurality of bubbles 80 contained in the heat storage material 64 do not permeate and leak over time, that is, as a gas barrier layer having high gas barrier properties. Alternatively, a VMPET resin film in which aluminum (for example, a thickness of 400 Å) is vapor-deposited on PET (polyethylene terephthalate) can also be used. Furthermore, it is effective to interpose an aluminum foil as a gas barrier layer having higher gas barrier properties. Therefore, for example, as the laminated resin film 62 having higher gas barrier properties, 12 μm thick PET (biaxially stretched polyethylene terephthalate) / 9 μm thick aluminum foil / 60 μm thick heat-resistant CPP (unstretched polypropylene) or 12 μm thick PET (Biaxially stretched polyethylene terephthalate) / 9 μm thick aluminum foil / 15 μm thick ON (biaxially stretched nylon) / 50 μm thick LLDPE (Linear Low Density Polyethylene) is preferred.

  For example, on the surface of the VMPET resin film, a heat seal layer having a thickness of 12 μm is formed by repeatedly applying a hot melt adhesive made of an ethylene-vinyl acetate copolymer with a printing machine. Since the heat sealant is a coating method using a printing machine, an organic solvent (for example, toluene) soluble ethylene-vinyl acetate copolymer is used, but the coating machine and the coating method are changed. It is possible to select various types of heat sealing agents such as a hydrogen latex type and an extrusion-free solvent type.

As the heat storage material 64, various materials known as cryogens can be used. However, a gel material containing a large amount of water in sodium polyacrylate or sodium sulfate decahydrate (Na ₂ SO ₄ .10H) An example is sodium sulfate decahydrate prepared by mixing appropriate amounts of ₂ O) and water (H ₂ O).

  The heat storage material pack 60 has a single form in which only one heat storage material pack element 66 extends in the vertical direction, and the upper edge and the lower edge of the heat storage material pack 60 are fixed to the packaging cover 3. May be. Preferably, a plurality of subdivided heat storage material pack elements 66 arranged in the up-down direction are connected together via a boundary portion 68. In the embodiment shown in FIG. 1, nine heat storage material pack elements 66 are arranged in a line. Accordingly, the heat storage material mat 1 shown in FIG. 1 includes 9 (pieces) × 8 (rows) = 72 heat storage material pack elements 66 as a whole. Therefore, even when the heat storage material mat 1 is used in a normal use state or folded and used, the heat storage material pack 60 is prevented from being twisted or unevenly distributed in the accommodation chamber. And an effective cool feeling or warm feeling can be provided with respect to a mat user.

  In addition, since the horizontal direction fixing | fixed part 40 and the horizontal direction fixing | fixed part 50 are used as a crease | fold when folding the thermal storage material mat 1, folding of the thermal storage material mat 1 becomes very easy. In the embodiment shown in FIG. 1, the heat storage material mat 1 can be folded in seven in the vertical direction and in three in the horizontal direction.

  As described above, the heat storage material bedding 1 according to the first embodiment of the present invention is substantially isotropic with respect to the tensile force in the packaging cover 3 having a degree of elongation in the oblique direction larger than that in the vertical and horizontal directions. The heat storage material pack 60 having a typical shape stability is fixedly accommodated, and a single flat nonwoven fabric 70 having air permeability and substantially isotropic shape stability against tensile force is provided. The lower cover 20 is fixed in a sandwich shape. When an oblique tensile force is applied to the heat storage material bedding 1, the nonwoven fabric 70 having substantially isotropic shape stability resists the oblique tensile force by receiving the oblique tensile force. It can function as the reinforcing material 70. Therefore, since the expansion of the packaging cover 3 having a large degree of elongation in the oblique direction can be suppressed, the fixing portions 40, 41, 50, 51 that fix the heat storage material pack 60 to the packaging cover 3 come off, or in the worst case. Occurrence of mechanical damage such as destruction of the heat storage material pack 60 can be prevented.

  Next, the heat storage material bedding 1 according to the second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a partial cross-sectional view of the heat storage material bedding 1 according to the second embodiment. In addition, description of the part which is common in said 1st embodiment is abbreviate | omitted, and it demonstrates centering on a different part from 1st embodiment.

  As shown in FIG. 3, when the heat storage material bedding 1 according to the second embodiment creates a bag-like packaging cover 3, a single nonwoven fabric 70 is fixed to the upper cover 10 side in a sandwich shape. It is characterized by being. Other configurations are the same as those in the first embodiment.

  Therefore, the heat storage material bedding 1 according to the second embodiment of the present invention has a shape stability that is substantially isotropic with respect to the tensile force in the packaging cover 3 in which the extension in the oblique direction is larger than the extension in the vertical and horizontal directions. The heat storage material pack 60 having the property is fixedly accommodated, and a single flat nonwoven fabric 70 having air permeability and substantially isotropic shape stability against the tensile force is formed by the upper cover 10. It is fixed in the form of a sandwich on the side. When an oblique tensile force is applied to the heat storage material bedding 1, the nonwoven fabric 70 having substantially isotropic shape stability resists the oblique tensile force by receiving the oblique tensile force. It can function as the reinforcing material 70. Therefore, since the expansion of the packaging cover 3 having a large degree of elongation in the oblique direction can be suppressed, the fixing portions 40, 41, 50, 51 that fix the heat storage material pack 60 to the packaging cover 3 come off, or in the worst case. Occurrence of mechanical damage such as destruction of the heat storage material pack 60 can be prevented.

  Next, the heat storage material bedding 1 according to the third embodiment of the present invention will be described with reference to FIG. FIG. 4 is a partial cross-sectional view of the heat storage material bedding 1 according to the third embodiment. In addition, description of the part which is common in said 1st embodiment is abbreviate | omitted, and it demonstrates centering on a different part from 1st embodiment.

  As shown in FIG. 4, in the heat storage material bedding 1 according to the third embodiment, the nonwoven fabric 70 is fixed to the upper cover 10 and the lower cover 20 side in a sandwich shape when the bag-shaped packaging cover 3 is created. Thus, a total of two nonwoven fabrics 70 are used.

  Therefore, the heat storage material bedding 1 according to the third embodiment of the present invention has a shape stability that is substantially isotropic with respect to the tensile force in the packaging cover 3 in which the extension in the oblique direction is larger than the extension in the vertical and horizontal directions. The heat-storing material pack 60 having the property is fixedly accommodated, and the planar nonwoven fabric 70 having air permeability and substantially isotropic shape stability against the tensile force is formed by the upper cover 10 and the lower cover. Each side of 20 is fixed in a sandwich. When an oblique tensile force is applied to the heat storage material bedding 1, the nonwoven fabric 70 having substantially isotropic shape stability resists the oblique tensile force by receiving the oblique tensile force. It can function as the reinforcing material 70. Therefore, since the expansion of the packaging cover 3 having a large degree of elongation in the oblique direction can be suppressed, the fixing portions 40, 41, 50, 51 that fix the heat storage material pack 60 to the packaging cover 3 come off, or in the worst case. Occurrence of mechanical damage such as destruction of the heat storage material pack 60 can be prevented. It goes without saying that the use of the two reinforcing members 70 increases the effect against the tensile force in the oblique direction.

  By the way, heat conduction characteristics differ depending on the thickness of the reinforcing material 70, and heat (warm or cold) becomes harder to be transmitted as the thickness of the reinforcing material 70 is thicker, so that heat (hot or cold) from the heat storage material pack 60 is cut off. It becomes easy to do. Conversely, the thinner the reinforcing material 70 is, the easier it is to transmit heat (hot or cold) from the heat storage material pack 60. The user may want to obtain different sensible temperatures with one heat storage material bedding 1. Therefore, when the reinforcing material 70 is fixed on both the upper cover 10 and the lower cover 20, it is preferable that the reinforcing material 70 is configured to have different thicknesses. The one where the thickness of the reinforcing material 70 is thin gives a hard feeling temperature close to the temperature of the heat storage material pack 60, and the one where the reinforcing material 70 is thick gives a soft feeling temperature deviated from the temperature of the heat storage material pack 60. And you may make it provide in the upper cover 10 and / or the lower cover 20 the mark which shows clearly or suggests that body temperature differs.

  Next, a heat storage material bedding 1 according to a fourth embodiment of the present invention will be described with reference to FIG. FIG. 5 is a partial cross-sectional view of the heat storage material bedding 1 according to the fourth embodiment. In addition, description of the part which is common in said 1st embodiment is abbreviate | omitted, and it demonstrates centering on a different part from 1st embodiment.

  As shown in FIG. 5, when the heat storage material bedding 1 according to the fourth embodiment creates a bag-shaped packaging cover 3, a resin film or paper 72 with a vent hole 74 is used as a reinforcing material for the lower cover 20. It is characterized by being sandwiched on the side.

  The resin film as the reinforcing material can be made of various materials such as polyester, vinyl chloride, polypropylene, polyamide, or polyethylene. Various types of paper such as western paper and Japanese paper can be used as the reinforcing material, and for example, printing paper using bleached chemical pulp is suitable. And if the thickness of a resin film or paper is thick, flexibility will fall and it will become difficult to bend and use as bedding, and if it is thin, the effect as a reinforcing material will fall. Therefore, the thickness of the resin film or paper as the reinforcing material is preferably about 0.1 to about 1 mm, and more preferably about 0.15 to about 0.25 mm. In the above-mentioned resin film or paper 72 (20 cm between grips, 5 cm grip width), the elongation ratio when pulled in the vertical or horizontal direction with a load of 14.7 N in accordance with JIS-L-1096 is about 1.0 to It is about 1.1%, and the stretch rate when pulled in the bias direction is about 1.1%. Therefore, the resin film or paper 72 as the reinforcing material has substantially isotropic shape stability against the tensile force.

  Moreover, even if the resin film or paper is thin, the resin film or paper itself hardly has air permeability. In order to prevent condensation in the heat storage material pack 60, it is necessary that the resin film or paper has a desired air permeability. Therefore, in order for the thin resin film or paper to have air permeability, as shown in FIG. 5, the reinforcing material 72 includes a plurality of air holes 74 penetrating in the thickness direction. The ventilation hole 74 is formed by punching, laser machining, or the like. If the hole size is large, the effect as a reinforcing material is lowered, and if the hole size is small, the air permeability is lowered. Therefore, the size of the vent hole 74 is preferably about 0.1 to about 3 mm.

  Therefore, the heat storage material bedding 1 according to the fourth embodiment of the present invention has a shape stability that is substantially isotropic with respect to the tensile force in the packaging cover 3 in which the extension in the oblique direction is larger than the extension in the vertical and horizontal directions. The heat storage material pack 60 having the property is fixedly accommodated, and a resin film or paper (reinforcing material) 72 with a vent hole 74 is fixed in a sandwich shape on the lower cover 20 side. When an oblique tensile force is applied to the heat storage material bedding 1, the resin film or paper 72 with the vent holes 74 having substantially isotropic shape stability receives the oblique tensile force, It can function as the reinforcing material 72 that resists the tensile force in the oblique direction. Therefore, since the expansion of the packaging cover 3 having a large degree of elongation in the oblique direction can be suppressed, the fixing portions 40, 41, 50, 51 that fix the heat storage material pack 60 to the packaging cover 3 come off, or in the worst case. Occurrence of mechanical damage such as destruction of the heat storage material pack 60 can be prevented. Needless to say, the use of the resin film or paper 72 with the vent holes 74 on the upper cover 10 and lower cover 20 sides increases the effect against the tensile force in the oblique direction.

  When the packaging cover 3 is made of a material having a high degree of elongation, such as knitted fabric or lace, the knitted fabric or lace may hang down due to the weight of the heat storage material pack 60, which may be an undesirable form. Therefore, when the packaging cover 3 is made of a material having a high degree of elongation, it is preferable to dispose the reinforcing materials 70 and 72 on the side facing the packaging cover 3 having a high degree of elongation.

  Further, heat (cold heat or warm heat) from the heat storage material pack 60 is transmitted to the upper cover 10 and the lower cover 20 in substantially the same manner. That is, heat is transferred in substantially the same way toward the user side and the non-user side. It is preferable that the reinforcing members 70 and 72 have a heat reflecting function so that heat transfer to the non-user side is suppressed and preferential heat transfer to the user side is realized. Therefore, it is preferable that the reinforcing members 70 and 72 include an aluminum coating or an aluminum foil from the viewpoint of cost and heat reflection ability.

  Moreover, in the heat storage material bedding 1 of this invention, various health assistance functions, such as a heat generation | occurrence | production function, a negative ion generation | occurrence | production function, a deodorizing, adsorption | suction, and a moisture absorption function, can also be provided. Thus, the reinforcement can comprise a health aid element that provides ozone, heat or negative ions.

  In addition, inorganic powders that emit far-infrared radiation (for example, silica / zirconia-based or cordierite-based far-infrared radiation ceramic powder), tourmaline and germanium that generate negative ions, and Bincho charcoal that has a deodorizing function as health support elements. Fine powder or the like is kneaded or attached to the reinforcing materials 70 and 72. As a result, heat is released, ozone and negative ions are released, and unpleasant odors are absorbed. The user of the heat storage material bedding 1 can obtain a restful sleep effect and a relaxing effect by releasing ozone, heat, or negative ions from the health support element.

  Further, the heat storage material mat 1 according to the present invention can be used as a normal mat in an expanded state, and is folded along the lateral fixing portions 40 and 41 and the lateral fixing portions 50 and 51. It can also be applied to head cooling pillows, pet cooling / warming mats, and sole cooling / warming mats. Further, it goes without saying that the heat storage material mat 1 according to the present invention may be a single heat storage material pack element 66 instead of the plurality of heat storage material pack elements 66 arranged in a matrix.

It is a schematic diagram explaining the basic structure of the heat storage material bedding which concerns on this invention. It is a partial sectional view of the heat storage material bedding according to the first embodiment. It is a partial cross section figure of the heat storage material bedding which concerns on 2nd embodiment. It is a partial cross section figure of the heat storage material bedding which concerns on 3rd embodiment. It is a partial cross section figure of the heat storage material bedding which concerns on 4th embodiment.

Explanation of symbols

1: Heat storage material mat (heat storage material bedding)
3: Packaging cover 10: Upper cover 20: Lower cover 30: Storage chamber 40: Vertical fixing part 41: Vertical fixing part 50: Horizontal fixing part 51: Horizontal fixing part 60: Thermal storage material pack 62: Laminated resin film 64: Thermal storage material 66: Thermal storage material pack element 68: Boundary portion 70: Non-woven fabric (reinforcing material)
72: Resin film with vent holes or paper (reinforcing material)
74: Ventilation hole

Claims (10)

A heat storage material pack in which a gel-like heat storage material is enclosed in a resin film;
A packaging cover for fixedly storing the heat storage material pack,
The packaging cover is a heat storage material bedding composed of a cloth having a greater degree of elongation in the oblique direction than the degree of elongation in the vertical and horizontal directions,
A planar reinforcing material having air permeability and having substantially isotropic shape stability against tensile force is fixed in a sandwich shape on at least one side of the upper cover or the lower cover of the packaging cover. A heat storage material bedding characterized by being.   The heat storage material bedding according to claim 1, wherein the packaging cover is selected from woven fabric, knitted fabric, and lace.   The heat storage material bedding according to claim 1, wherein the reinforcing material is selected from a nonwoven fabric, a resin film with a vent hole, or a paper with a vent hole.   The heat storage material bedding according to claim 1, wherein the packaging cover has a plurality of storage chambers, and a heat storage material pack is stored in each of the storage chambers.   The heat storage material bedding according to claim 1, wherein the size of the reinforcing material is approximately fitted to the size of the packaging cover.   The heat storage material bedding according to claim 1, wherein when the packaging cover is made of a material having a high degree of elongation, a reinforcing material is disposed on the side facing the packaging cover having a high degree of elongation.   The heat storage material bedding according to claim 1, wherein when the reinforcing material is fixed on both sides of the upper cover and the lower cover, the thickness of the reinforcing material is different.   The heat storage material bedding according to claim 1, wherein when the heat storage material bedding is used for warmth, the reinforcing material includes an aluminum coating or an aluminum foil.   The heat storage material bedding according to claim 1, wherein the reinforcing material includes a health support element.   The heat storage material bedding according to claim 9, wherein the health assisting element provides ozone, heat, or negative ions.

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