JP3019277U - Insulation slippers - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to provide a lightweight heat-retaining slipper capable of stimulating a foot and giving a massage effect while not losing body temperature. [Structure] A bottom 2, an insole 10, and a deck 30 are formed, and the outer material 15 of the insole 10 on which the sole of the foot hits and the lining 33 of the deck 30 on which the instep of the foot hits are formed by heat insulating sheets 16 and 36. ing. The heat insulating sheets 16 and 36 are the flexible sheet 20, the far-infrared radiation layers 21 and 37 provided on a predetermined portion of the surface of the flexible sheet 20, and the surface of the flexible sheet 20. It is formed of the metal film 22 provided on the portions other than 21 and 37. When the foot is put in, the far-infrared ceramics of the far-infrared radiation layers 21 and 37 are heated by the body temperature and emit far-infrared rays to warm the foot.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heat retaining slipper.

[0002]

[Prior art]

 In the conventional thermal slippers, only the insole that contacts the sole of the foot and the lining of the deck that contacts the instep are thickened. In addition, there was also an insole provided with an electric heating element. This thermal insulation slipper equipped with an electric heating element has a cord attached to one side, and by inserting the plug provided at the tip of the cord into a household outlet, the heating element is heated and always kept constant. Was formed to maintain the temperature of.

[0003]

[Problems to be solved by the device]

 The conventional heat-retaining slippers with thick outer and lining have the problem that they cannot stimulate the feet because they do not allow the body temperature to escape. In addition, the heat-retaining slippers provided with an electric heating element in the insole irritate the feet by heating, but they have a problem that they are heavy, difficult to walk, and can move only within the length of the cord. It was

The present invention has been devised in view of the above-mentioned problems, and is a lightweight, heat-retaining slipper that does not miss body temperature and can stimulate a foot to provide a massage effect. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 The heat retaining slipper according to the present invention has the following configuration as a first means for achieving the above object. (A) Being composed of a bottom, an insole, and a deck. (B) At least one of the outer material of the insole that touches the sole of the foot and the lining of the deck that touches the instep of the foot is formed of a heat insulating sheet. (C) The heat insulation sheet is provided on the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet excluding the far infrared radiation layer. It should be formed with the metal film formed. (D) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14 μ in the body temperature range, with a binder. That

[0006] The following configuration can be adopted as a second means that embodies the first means. (A) Being composed of a bottom, an insole, and a deck. (B) The bottom portion is composed of a lower core material and a bottom sheet that covers the lower surface of the lower core material. (C) The insole consists of an upper core material, a heel portion fixed to the rear upper surface of the upper core material, a cushioning member fixed to the heel portion, and an outer material covering the upper core material and the cushioning member. . (D) The deck is formed to be gently curved and is composed of a core material, an exterior sheet adhered to the convex outer surface of the core material, and a lining adhered to the concave inner surface of the core material. (E) The insole shall be mounted on the bottom so that the upper core of this insole is superposed on the lower core of the bottom. (F) The deck shall be attached to the insole and the bottom so that the hem of the deck is folded between the insole and the bottom. (G) At least one of the outer lining of the insole that touches the sole of the foot and the lining of the deck that hits the instep of the foot is formed of a heat insulating sheet. (H) The heat insulation sheet is provided on the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet excluding the far infrared radiation layer. It should be formed with the metal film formed. (I) The far-infrared radiation layer is formed by holding, with a binder, a granular material of far-infrared ceramics of about 50 to 200 mesh, which emits an electromagnetic wave having a wavelength peak of 7 to 14μ in the body temperature range. That

Further, as a third means for achieving the above object, the following configuration may be adopted. (A) Being composed of a bottom, an insole, and a deck. (B) A heat insulation sheet is attached to at least one of the outer surface of the insole that contacts the sole of the foot and the lining of the deck that contacts the instep of the foot. (C) The heat insulation sheet is formed of far infrared ceramics, or is a flexible sheet, a far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet. It must be formed of a metal film provided on the part excluding the infrared radiation layer. (D) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14 μ in the body temperature range, with a binder. That

The following means can be adopted as the fourth means by concretely using the third means. (A) Being composed of a bottom, an insole, and a deck. (B) The bottom portion is composed of a lower core material and a bottom sheet that covers the lower surface of the lower core material. (C) The insole consists of an upper core material, a heel portion fixed to the rear upper surface of the upper core material, a cushioning member fixed to the heel portion, and an outer material covering the upper core material and the cushioning member. . (D) The deck is formed to be gently curved and is composed of a core material, an exterior sheet adhered to the convex outer surface of the core material, and a lining adhered to the concave inner surface of the core material. (E) The insole shall be mounted on the bottom so that the upper core of this insole is superposed on the lower core of the bottom. (F) The deck shall be attached to the insole and the bottom so that the hem of the deck is folded between the insole and the bottom. (G) A heat insulating sheet is attached to at least one of the outer surface of the insole that hits the sole of the foot and the lining of the deck that hits the instep of the foot. (H) The heat insulation sheet is formed of far infrared ceramic cotton, or the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet. It must be formed of a metal film provided on the part excluding the infrared radiation layer. (I) The far-infrared radiation layer is formed by holding, with a binder, a granular material of far-infrared ceramics of about 50 to 200 mesh, which emits an electromagnetic wave having a wavelength peak of 7 to 14μ in the body temperature range. That

Furthermore, as a fifth means for achieving the above object, the following configuration may be adopted. (A) Being composed of a bottom, an insole, and a deck. (B) Of the insole surface that touches the sole of the foot and the lining of the deck that touches the instep of the foot, at least the part that touches one finger is formed of a heat insulating sheet, and the other part is formed of cloth. That (C) The heat insulation sheet is provided on the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet excluding the far infrared radiation layer. It should be formed with the metal film formed. (D) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14 μ in the body temperature range, with a binder. That

The following configuration can be adopted as the sixth means by concretely implementing the fifth means. (A) Being composed of a bottom, an insole, and a deck. (B) The bottom portion is composed of a lower core material and a bottom sheet that covers the lower surface of the lower core material. (C) The insole consists of an upper core material, a heel portion fixed to the rear upper surface of the upper core material, a cushioning member fixed to the heel portion, and an outer material covering the upper core material and the cushioning member. . (D) The deck is formed to be gently curved and is composed of a core material, an exterior sheet adhered to the convex outer surface of the core material, and a lining adhered to the concave inner surface of the core material. (E) The insole shall be mounted on the bottom so that the upper core of this insole is superposed on the lower core of the bottom. (F) The deck shall be attached to the insole and the bottom so that the hem of the deck is folded between the insole and the bottom. (G) Of the insole surface that touches the sole of the foot and the lining of the deck that touches the instep of the foot, at least the part that touches one finger is formed of a heat insulating sheet, and the other part is formed of cloth. That (H) The heat insulation sheet is provided on the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet excluding the far infrared radiation layer. It should be formed with the metal film formed. (I) The far-infrared radiation layer is formed by holding, with a binder, a granular material of far-infrared ceramics of about 50 to 200 mesh, which emits an electromagnetic wave having a wavelength peak of 7 to 14μ in the body temperature range. That

As a seventh means for achieving the above object, the following configuration may be adopted. (A) Being composed of a bottom, an insole, and a deck. (B) A heat insulation sheet is attached to at least one of the outer surface of the insole that touches the sole of the foot and the lining of the deck that hits the instep of the foot, in the vicinity of the finger. (C) The heat insulation sheet is formed of far infrared ceramics, or is a flexible sheet, a far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet. It must be formed of a metal film provided on the part excluding the infrared radiation layer. (D) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14 μ in the body temperature range, with a binder. That

The following configuration can be adopted as the eighth means which is a concrete implementation of the seventh means. (A) Being composed of a bottom, an insole, and a deck. (B) The bottom portion is composed of a lower core material and a bottom sheet that covers the lower surface of the lower core material. (C) The insole consists of an upper core material, a heel portion fixed to the rear upper surface of the upper core material, a cushioning member fixed to the heel portion, and an outer material covering the upper core material and the cushioning member. . (D) The deck is formed to be gently curved and is composed of a core material, an exterior sheet adhered to the convex outer surface of the core material, and a lining adhered to the concave inner surface of the core material. (E) The insole shall be mounted on the bottom so that the upper core of this insole is superposed on the lower core of the bottom. (F) The deck shall be attached to the insole and the bottom so that the hem of the deck is folded between the insole and the bottom. (G) A heat insulating sheet is attached to the surface of the insole that touches the sole of the foot and the lining of the deck that hits the instep of the foot, at least on the back of one side and near the fingers. (H) The heat insulation sheet is formed of far infrared ceramic cotton, or the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet. It must be formed of a metal film provided on the part excluding the infrared radiation layer. (I) The far-infrared radiation layer is formed by holding, with a binder, a granular material of far-infrared ceramics of about 50 to 200 mesh, which emits an electromagnetic wave having a wavelength peak of 7 to 14μ in the body temperature range. That

[0013]

[Action]

 When the heat retaining slippers according to the first to eighth means are worn, the sole of the foot contacts the outer material of the insole and the instep of the foot contacts the lining of the deck. Since this heat retaining slipper is provided with a heat retaining sheet on at least one of the front material and the lining material, the body temperature of the foot can be kept constant without being missed.

When the heat insulating sheet is formed of the flexible sheet, the far infrared radiation layer provided on the surface of the flexible sheet, and the metal film provided on the surface of the flexible sheet, far infrared ceramics are generated due to body temperature. After being heated to about 36 ° C., this far infrared ceramics emits electromagnetic waves (far infrared) having a wavelength peak of 7 to 14 μ. This far-infrared ray penetrates 40 to 50 mm below the human skin, and the absorbed radiant energy promotes ionization in the body, activates cells and warms the foot from inside, and Expand, activate blood circulation, strengthen metabolism. In addition, since a metal film is provided around the far infrared radiation layer, far infrared rays are reflected and radiation efficiency is improved.

When the heat insulating sheet is attached to the back surface of the outer material or the lining material, the same effect as described above can be given and the sweat discharged from the feet can be absorbed by the outer material and the lining material. Also, since the heat insulation sheet is hidden by the front and back linings, it can be made to look like a normal slipper.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. The heat retaining slipper 1 shown in FIG. 1 is roughly composed of a bottom portion 2, an insole 10, and a deck 30.

As shown in FIG. 2, the bottom portion 2 is composed of a lower core material 3 formed of cardboard, a plastic plate, a hard synthetic rubber plate, etc., and a bottom sheet 4 covering the lower surface of the lower core material 3. Has been. The bottom sheet 4 is made of a synthetic resin sheet such as vinyl chloride or a material having a large friction coefficient such as synthetic leather. The bottom sheet 4 is attached to the lower core material 3 by being folded inward so that the peripheral edge of the bottom sheet 4 wraps around the peripheral edge of the lower core material 3, and sewn.

As shown in FIG. 2, the insole 10 is fixed to the upper core member 11 made of cardboard, a plastic plate, a hard synthetic rubber plate or the like, and the upper surface of the rear portion of the upper core member 11 with an adhesive or the like. It comprises a heel portion 12, a cushioning member 13 fixed on the heel portion 12 with an adhesive or the like, and a dress material 15. The heel portion 12 is formed of a hard member such as urethane having a hardness that does not deform so much even if the weight of a person is applied. The cushioning member 13 is made of a soft and elastic material such as sponge (ethylene vinyl acetate polymer (EVA)) or synthetic rubber foam.

The outer material 15 includes a heat insulating sheet 16 that covers the upper core material 11 and the cushioning member 13, and a cover sheet 17 that is attached by sewing so as to cover the rear portion of the heat insulating sheet 16 (the upper portion of the heel 12). As shown in FIG. 1, the cover sheet 17 is formed with a peripheral sheet 19 attached to the peripheral edge of the cover sheet 17 by sewing. The heat insulation sheet 16 and the peripheral edge sheet 19 are attached to the upper core material 11 by folding them inward so that the hem of the heat insulation sheet 16 and the peripheral edge sheet 19 wind up the peripheral edge of the upper core material 11 and sewing them. Of course, the outer material 15 can be formed only by the heat insulating sheet 16.

As shown in FIGS. 3 and 4, the heat insulating sheet 16 has a plurality of rectangular far infrared radiation layers 21 arranged and adhered or welded on the surface of the flexible sheet 20 to remove the far infrared radiation layers 21. A metal film 22 of aluminum alloy or the like is vapor-deposited or transferred onto the portion. The heat insulating sheet 16 is sewn so that the far infrared radiation layer 21 is exposed. The cover sheet 17 and the peripheral sheet 19 are made of common cloth.

The flexible sheet 20 may be any of a synthetic resin film, a non-woven fabric, a woven fabric, a knitted fabric, a metal foil, or the like, and may be arbitrarily selected from these and laminated. The far-infrared radiation layer 21 is formed by kneading fine-particle far-infrared ceramics pulverized to about 50 to 200 mesh with a binder made of an acrylic resin, and adding a foaming agent as necessary to obtain flexibility. The surface of the sheet 20 is coated by coating, printing or the like.

Far-infrared ceramics emits far-infrared rays when heated, and they mix clay and kibushi clay, and add crushed silica stone as a base, and further add aluminum oxide, or Zirconium oxide or silicon oxide is added, a binder is added together with an appropriate amount of water, the mixture is kneaded, and the mixture is baked at a high temperature of about 1300 ° C. Although the far-infrared radiation layer 21 is formed in a rectangular shape, since it is coated on the surface of the flexible sheet 20 with a coating material as described above, the far-infrared radiation layer 21 can be freely shaped according to the use and purpose of the heat retaining slipper 1. Can be changed.

The deck 30 is formed so as to be gently curved, and has a core material 31, an outer sheet 32 fixed to the outer surface (convex side surface) of the core material 31 with an adhesive or the like, and the inner surface (concave surface) of the core material 31. And a lining 33 adhered to the side surface by an adhesive or the like. The core material 31 is made of EVA, cardboard, a plastic plate, hard synthetic rubber, or the like. The exterior sheet 32 is made of general cloth. The lining 33 is formed of a heat insulating sheet 36 made of the same material as the heat insulating sheet 16, and is bonded to the core material 31 so that the far infrared radiation layer 37 is exposed. The bottom of the deck 30 is folded between the bottom 2 and the insole 10, and the deck 30 is sewn integrally with the bottom 2 and the insole 10.

Since the heat-retaining slipper 1 has the above-mentioned configuration, when the heat-retaining slipper 1 is put on, the sole of the foot hits the outer material 15 of the insole 10 and the instep of the foot hits the lining 33 of the deck 30. Since the front part of the outer material 15 and the lining 33 are formed by the heat insulating sheets 16 and 36, the far infrared ceramics of the far infrared radiation layers 21 and 37 are warmed up to about 36 ° C. by the body temperature of the foot. Far-infrared ceramics radiate an electromagnetic wave (far-infrared) having a wavelength peak of 7 to 14 μ. The far infrared rays penetrate 40 to 50 mm below the human skin, and the absorbed radiant energy promotes ionization in the body, activating cells and warming the foot from the inside, dilation of microvessels, blood Activate the circulation and strengthen metabolism.

Since the metal film 22 such as an aluminum alloy is deposited around the far-infrared radiation layers 21 and 37, far-infrared rays are reflected and radiation efficiency is improved. Further, the metal film 22 improves the strength of the heat insulating sheets 16 and 36, makes it difficult to tear, and makes the appearance more flashy, which is eye-catching.

In this embodiment, the heat insulating sheets 16 and 36 are provided on both the front material 15 and the lining 33, but they may be provided on at least one of them. Further, the heat insulating sheets 16 and 36 may be provided only on the part of the outer material 15 or the lining 33 that the finger touches. That is, a portion of the outer material 15 covering the upper core material 11, the cushioning member 13, and the heel portion 12 which is touched by the toes is formed by the heat insulating sheet 16, and the other portion is formed by a general cloth, or the lining 33 is formed. The part to which the toes touch is formed by the heat insulating sheet 36, and the other part is formed by general cloth. By doing this, far infrared rays can be radiated to the fingertips where the nerves are concentrated and where it is most chilly, and far infrared rays are not radiated to unnecessary parts, so sweat can be added more. No, and the material cost can be saved.

Another embodiment of the present invention will be described with reference to FIGS. The heat retaining slippers 39 have the same overall structure and materials except for the outer material 40 of the insole 10 and the lining material 45 of the deck 30, and therefore description thereof will be omitted.

The outer material 40 is formed of a cover sheet 41 that covers the upper core member 11 and the cushioning member 13, and a peripheral sheet 42 that is attached to the peripheral edge of the cover sheet 41 by sewing, and the back surface of the cover sheet 41 is A heat insulating sheet 43 is attached. The cover sheet 41 and the peripheral sheet 42 are made of common cloth. As shown in FIG. 8, the heat insulating sheet 43 is made of far infrared ceramic cotton 44.

The lining 45 is formed of a general cloth, and the heat insulating sheet 47 is attached to the back surface. The heat insulating sheet 47 is also formed of the far infrared ceramic cotton 44. The heat insulating sheets 43 and 47 may be the heat insulating sheets 16 and 36 described in the above embodiment.

Since the heat-retaining slipper 39 has the above-mentioned configuration, when the heat-retaining slipper 39 is worn, the sole of the foot hits the outer material 40 of the insole 10 and the instep of the foot hits the lining 45 of the deck 30. Since the heat insulating sheets 43 and 47 made of far infrared ceramics cotton 44 are provided on the back surfaces of the outer material 40 and the lining 45, the far infrared ceramics cotton 44 is heated to about 36 ° C. due to the body temperature of the foot. When warmed, this far infrared ceramics emits an electromagnetic wave (far infrared) having a wavelength peak of 7 to 14 μ. The far infrared rays penetrate 40 to 50 mm below the human skin, and the absorbed radiant energy promotes ionization in the body, activating cells and warming the feet from the inside, dilation of microvessels, blood circulation. Revitalize and strengthen metabolism. When sweat is generated from the foot, the sweat is absorbed by the outer material 40 and the lining 45.

In this embodiment, the heat insulating sheets 43 and 47 are provided on the back surfaces of both the outer material 40 and the lining material 45, but they may be provided on at least one of them. Further, the heat insulating sheet 43 or 47 can be made small and can be provided in the vicinity of the part of the outer material 40 or the lining material 45 which the finger touches. By doing this, far infrared rays can be radiated to the fingertips where the nerves are concentrated and where it is the coldest, and far infrared rays are not radiated to unnecessary parts. And the material cost can be saved.

[0032]

[Effect of device]

 As described above, the heat insulating slipper according to the present invention has the heat insulating sheet having the far infrared radiation layer provided on the outer material of the insole or the lining of the deck. The far-infrared ceramics of the radiation layer are heated to about 36 ° C., and the far-infrared ceramics radiate an electromagnetic wave (far-infrared) having a wavelength peak of 7 to 14 μ. The far infrared rays penetrate 40 to 50 mm below the human skin, and the absorbed radiant energy promotes ionization in the body, activating cells and warming the foot from the inside, dilation of microvessels, blood circulation. There is an effect that it can activate and improve metabolism. Therefore, it can be used as a health appliance.

In the heat retaining slipper according to the first and second aspects, since the metal film is provided around the far infrared ray emitting layer, there is an effect that the far infrared ray is reflected in one direction and the radiation efficiency is improved. In addition, since the far-infrared radiation layer and the metal film are exposed, the appearance is flashy, and there is an effect that it can attract the eye.

Since the heat retaining slippers according to claims 3 and 4 are provided with a heat retaining sheet having far-infrared ceramics on the back surface of the outer material or the lining material, when sweat comes out from the foot, the sweat is removed from the outer material or the lining material. It has the effect of absorbing and removing the discomfort of the foot. Also, since the heat insulating sheet is not visible due to the outer material or the lining material, the appearance can be made like a normal slipper.

The heat-insulating slippers according to claims 5 to 8 are capable of emitting far infrared rays only to the toes, where nerves are concentrated and where the nerves are most easily cooled, and are capable of emitting far infrared rays to unnecessary portions. Since there is no sweat, there is an effect that sweat is not applied excessively and material cost can be saved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a heat retaining slipper according to the present invention.

FIG. 2 is a sectional side view of the one embodiment.

FIG. 3 is a front view of a protective sheet.

FIG. 4 is a sectional view of a protective sheet.

FIG. 5 is a sectional side view showing another embodiment of the heat retaining slipper according to the present invention.

FIG. 6 is a sectional front view of another embodiment.

FIG. 7 is an enlarged cross-sectional view of a main part of another embodiment.

FIG. 8 is a perspective view of a protective sheet.

[Explanation of symbols]

 1 Thermal insulation slippers 2 Bottom part 3 Bottom core material 4 Bottom sheet 10 Insole 11 Upper core material 12 Heel part 13 Buffer member 15 Outer material 16 Heat insulation sheet 17 Cover sheet 19 Peripheral sheet 20 Flexible sheet 21 Far infrared radiation layer 22 Metal film 30 Deck 31 core material 32 exterior sheet 33 lining 36 thermal insulation sheet 37 far infrared radiation layer 39 thermal insulation slippers 40 outer material 41 cover sheet 42 peripheral sheet 43 thermal insulation sheet 44 far infrared ceramics 45 lining 47 thermal insulation sheet

Claims (8)

[Scope of utility model registration request] 1. A heat retaining slipper having the following requirements. (A) Being composed of a bottom, an insole, and a deck. (B) At least one of the outer material of the insole that contacts the sole of the foot and the lining of the deck that contacts the instep of the foot is formed of a heat insulating sheet. (C) The heat insulating sheet is provided on the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet excluding the far infrared radiation layer. Be formed with a metal film. (D) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14μ in a body temperature range, with a binder. thing. 2. A heat retaining slipper having the following requirements. (A) Being composed of a bottom, an insole, and a deck. (B) The bottom portion is composed of a lower core material and a bottom sheet that covers the lower surface of the lower core material. (C) The insole is composed of an upper core material, a heel portion fixed to the rear upper surface of the upper core material, a cushioning member fixed to the heel portion, and an outer material covering the upper core material and the cushioning member. . (D) The deck is formed to be gently curved, and includes a core, an exterior sheet adhered to the convex outer surface of the core, and a lining adhered to the concave inner surface of the core. (E) The insole shall be mounted on the bottom so that the upper core material of the insole overlaps the lower core material of the bottom. (F) The deck shall be attached to the insole and the bottom so that the hem of the deck is folded between the insole and the bottom. (G) At least one of the outer material of the insole that contacts the sole of the foot and the lining of the deck that contacts the instep of the foot is formed of a heat insulating sheet. (H) The heat insulating sheet was provided on the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet excluding the far infrared radiation layer. Be formed with a metal film. (I) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14μ in a temperature range of body temperature, with a binder. thing. 3. A heat retaining slipper having the following requirements. (A) Being composed of a bottom, an insole, and a deck. (B) A heat insulation sheet is attached to the back surface of at least one of the insole surface that the sole of the foot hits and the lining of the deck that the instep hits. (C) The heat insulating sheet is formed of far infrared ceramics, or is a flexible sheet, a far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet. It must be formed with the metal film provided on the part excluding the infrared radiation layer. (D) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14μ in a body temperature range, with a binder. thing. 4. A heat retaining slipper provided with the following requirements. (A) Being composed of a bottom, an insole, and a deck. (B) The bottom portion is composed of a lower core material and a bottom sheet that covers the lower surface of the lower core material. (C) The insole is composed of an upper core material, a heel portion fixed to the rear upper surface of the upper core material, a cushioning member fixed to the heel portion, and an outer material covering the upper core material and the cushioning member. . (D) The deck is formed to be gently curved, and includes a core, an exterior sheet adhered to the convex outer surface of the core, and a lining adhered to the concave inner surface of the core. (E) The insole shall be mounted on the bottom so that the upper core material of the insole overlaps the lower core material of the bottom. (F) The deck shall be attached to the insole and the bottom so that the hem of the deck is folded between the insole and the bottom. (G) A heat insulating sheet is attached to the back surface of at least one of the outer surface of the insole that hits the sole of the foot and the lining of the deck that hits the instep of the foot. (H) The heat insulation sheet is formed of far infrared ceramic cotton, or is a flexible sheet, a far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet. It must be formed with the metal film provided on the part excluding the infrared radiation layer. (I) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14μ in a temperature range of body temperature, with a binder. thing. 5. A heat retaining slipper having the following requirements. (A) Being composed of a bottom, an insole, and a deck. (B) Of the insole surface that hits the sole of the foot and the lining of the deck that hits the instep of the foot, at least one part that touches the finger is formed of a heat insulating sheet, and the other part is formed of cloth. thing. (C) The heat insulating sheet is provided on the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet excluding the far infrared radiation layer. Be formed with a metal film. (D) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14μ in a body temperature range, with a binder. thing. 6. A heat retaining slipper characterized by comprising the following requirements. (A) Being composed of a bottom, an insole, and a deck. (B) The bottom portion is composed of a lower core material and a bottom sheet that covers the lower surface of the lower core material. (C) The insole is composed of an upper core material, a heel portion fixed to the rear upper surface of the upper core material, a cushioning member fixed to the heel portion, and an outer material covering the upper core material and the cushioning member. . (D) The deck is formed to be gently curved, and includes a core, an exterior sheet adhered to the convex outer surface of the core, and a lining adhered to the concave inner surface of the core. (E) The insole shall be mounted on the bottom so that the upper core material of the insole overlaps the lower core material of the bottom. (F) The deck shall be attached to the insole and the bottom so that the hem of the deck is folded between the insole and the bottom. (G) Of the insole surface that hits the sole of the foot and the lining of the deck that hits the instep of the foot, at least one part that touches the finger is formed of a heat insulating sheet, and the other part is formed of cloth. thing. (H) The heat insulating sheet was provided on the flexible sheet, the far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet excluding the far infrared radiation layer. Be formed with a metal film. (I) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14μ in a temperature range of body temperature, with a binder. thing. 7. A heat retaining slipper provided with the following requirements. (A) Being composed of a bottom, an insole, and a deck. (B) A heat insulating sheet is attached to at least one of the outer surface of the insole that touches the sole of the foot and the lining of the deck that hits the instep of the foot, in the vicinity of the finger. (C) The heat insulating sheet is formed of far infrared ceramics, or is a flexible sheet, a far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet. It must be formed with the metal film provided on the part excluding the infrared radiation layer. (D) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14μ in a body temperature range, with a binder. thing. 8. A heat retaining slipper characterized by comprising the following requirements. (A) Being composed of a bottom, an insole, and a deck. (B) The bottom portion is composed of a lower core material and a bottom sheet that covers the lower surface of the lower core material. (C) The insole is composed of an upper core material, a heel portion fixed to the rear upper surface of the upper core material, a cushioning member fixed to the heel portion, and an outer material covering the upper core material and the cushioning member. . (D) The deck is formed to be gently curved, and includes a core, an exterior sheet adhered to the convex outer surface of the core, and a lining adhered to the concave inner surface of the core. (E) The insole shall be mounted on the bottom so that the upper core material of the insole overlaps the lower core material of the bottom. (F) The deck shall be attached to the insole and the bottom so that the hem of the deck is folded between the insole and the bottom. (G) A heat insulating sheet is attached to the back of at least one of the outer lining of the insole that hits the sole of the foot and the lining of the deck that hits the instep of the foot and near the finger. (H) The heat insulation sheet is formed of far infrared ceramic cotton, or is a flexible sheet, a far infrared radiation layer provided on a predetermined portion of the surface of the flexible sheet, and the surface of the flexible sheet. It must be formed with the metal film provided on the part excluding the infrared radiation layer. (I) The far-infrared radiation layer is formed by holding a granular material of far-infrared ceramics of about 50 to 200 mesh, which radiates an electromagnetic wave having a wavelength peak of 7 to 14μ in a temperature range of body temperature, with a binder. thing.