JP2018064032A - Electromagnetic wave-reducing cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic wave-reducing cover which can bring about a health promotion effect by a remarkable far infrared light action, an effect of absorbing sweat, sebum, etc. on a hand or others, and a deodorizing effect in addition to an electromagnetic wave-reducing effect of a mobile information technology device.SOLUTION: An electromagnetic wave-reducing cover 1 is to be attached to a mobile information technology device 2. The electromagnetic wave-reducing cover comprises a main body part 10 disposed so as to cover at least a backside 2b of the mobile information technology device. The main body part has a layer structure formed by an electromagnetic wave-reducing sheet 13 including carbon, and a cloth body 15 making an outermost layer firmly fixed to a face of the electromagnetic wave-reducing sheet on a side opposite to the mobile information technology device. The cloth body includes spherical fine particles of super-porous active carbon 100 formed from a carbonized phenol resin.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electromagnetic wave reduction cover that has an electromagnetic wave reduction effect and can promote health by a far infrared ray action.

2. Description of the Related Art Conventionally, a portable information device storage case or the like configured to reduce electromagnetic waves radiated from a portable information device has been proposed. For example, in the electromagnetic wave absorbing case of Patent Document 1 below, the electromagnetic wave absorbing film included in the case is configured to have a layer structure including a metal layer film that absorbs electromagnetic waves, whereby the electromagnetic waves emitted by the portable information device are reduced. It is reduced.
In the case of the electronic device case disclosed in Patent Document 2 below, a cell phone is formed by a bamboo charcoal included in the bonding layer or the bamboo charcoal spray layer, with a surface treatment layer as the outermost layer and a bonding layer or a bamboo charcoal spray layer disposed inside. The electromagnetic wave from is absorbed.

JP 2013-175691 A Utility Model Registration No. 3135640

However, in Patent Document 1, the outermost decorative layer of the electromagnetic wave absorbing film is composed of a photo-curing resin layer or the like, and therefore has no effect of absorbing sweat and the like. However, there is a problem that the hand holding the portable information device equipped with the electromagnetic wave absorbing casing becomes sweaty. Moreover, since this electromagnetic wave absorption film does not have a far-infrared effect, there is no health promotion effect.
Moreover, in the said patent document 2, although it has a far-infrared effect | action by the bamboo charcoal contained in a joining layer or a bamboo charcoal spray layer, the surface treatment layer of the outermost layer which comprises the case for electronic devices is a thing for the purpose of surface protection or coloring. Yes, there is no sucking function such as sweat, and the above problem may occur. Therefore, further improvement is required.

  The present invention has been proposed in view of the above points, and its purpose is not only the electromagnetic wave reduction effect of portable information devices, but also the health enhancement effect due to the remarkable far-infrared action, and the sweat and sebum of hands etc. The object of the present invention is to provide an electromagnetic wave reduction cover capable of exhibiting the effect of sucking and deodorizing.

  In order to achieve the above object, an electromagnetic wave reduction cover according to the present invention is an electromagnetic wave reduction cover attached to a portable information device, and has a main body portion arranged to cover at least the back surface of the portable information device. The main body portion has a layer structure composed of an electromagnetic wave reducing sheet containing carbon and a cloth-like body constituting an outermost layer fixed to the opposite surface of the portable information device of the electromagnetic wave reducing sheet. The cloth-like body contains a large number of superporous spherical fine particle activated carbons having a particle size of 150 μm to 600 μm.

In the present invention, the spherical fine particle activated carbon may be composed of a carbonized phenol resin and have a specific surface area of 3,300 m 2 / g or more.
Further, the spherical fine particle activated carbon may store at least one of an antibacterial agent, a deodorant, and an fragrance.
Furthermore, the electromagnetic wave reduction cover further includes a box having an opening that covers the portable information device so as to enclose the entire portable information device, and each surface portion constituting the box In addition, a second cloth-like body storing a large number of superporous spherical fine particle activated carbons having a particle diameter of 150 μm to 600 μm is disposed in the outermost layer, and the inner layer of the second cloth-like body contains carbon. 2 It is good also as what formed the layer structure which arranged the electromagnetic wave reduction sheet | seat.
Furthermore, a connecting portion provided at an end portion of the main body portion, and a display portion cover that is connected to the connecting portion and is openable and closable so as to cover a surface on the display portion side of the portable information device. It is also good.

  In order to achieve the above object, an electromagnetic wave reduction cover according to the present invention is an electromagnetic wave reduction cover attached to a portable information device, and has a main body portion arranged to cover at least the back surface of the portable information device. The main body portion forms a layer structure by an electromagnetic wave reducing sheet containing carbon and an activated carbon fiber sheet constituting an outermost layer fixed to the surface of the electromagnetic wave reducing sheet opposite to the portable information device. It is characterized by that.

In the present invention, the electromagnetic wave reducing sheet may be composed of a flexible graphite sheet.
The activated carbon fiber sheet may be formed by sewing a plurality of belt-shaped activated carbon fiber materials with sewing threads.
Furthermore, the electromagnetic wave reduction cover further includes a box having an opening that covers the portable information device so as to enclose the entire portable information device, and each surface portion constituting the box Alternatively, the second activated carbon fiber sheet may be disposed on the outermost layer, and the second electromagnetic wave reducing sheet containing carbon may be disposed on the inner layer of the second activated carbon fiber sheet.
Furthermore, a connecting portion provided at an end portion of the main body portion, and a display portion cover that is connected to the connecting portion and is openable and closable so as to cover a surface on the display portion side of the portable information device. It is also good.

  According to the electromagnetic wave reduction cover according to the present invention, since it has the above-described configuration, in addition to the electromagnetic wave reduction effect of the portable information device, the health promotion effect due to the remarkable far-infrared action, and the sweat and sebum of the hand etc. Has a sucking effect and deodorizing effect.

(A) is a perspective view of the electromagnetic wave reduction cover which concerns on 1st embodiment of this invention, (b) is sectional drawing of the said electromagnetic wave reduction cover in an AA line. These are sectional drawings of the spherical fine particle activated carbon in this embodiment. (A) is a perspective view of the electromagnetic wave reduction cover which concerns on 2nd embodiment of this invention, (b) is sectional drawing of the box-shaped body with which the said electromagnetic wave reduction cover in BB line is provided. It is a perspective view of the electromagnetic wave reduction cover which concerns on 3rd embodiment of this invention. (A) is a perspective view of the electromagnetic wave reduction cover which concerns on 4th embodiment of this invention, (b) is sectional drawing of the said electromagnetic wave reduction cover in CC line. These are explanatory drawings which show an example of the activated carbon fiber sheet in this embodiment. (A) is a perspective view of the electromagnetic wave reduction cover which concerns on 5th embodiment of this invention, (b) is sectional drawing of the box provided with the said electromagnetic wave reduction cover in DD line. It is a perspective view of the electromagnetic wave reduction cover which concerns on 6th embodiment of this invention.

The electromagnetic wave reduction cover according to each embodiment of the present invention will be described below with reference to the drawings.
The electromagnetic wave reduction cover 1 according to the first embodiment is attached to the portable information device 2 as shown in FIG. 1A, and is a main body arranged to cover at least the back surface 2 b of the portable information device 2. Part 10.

Here, the portable information device 2 is an information device that emits portable electromagnetic waves, such as a camera function, a video shooting function, a telephone function, a viewing function such as a TV or music, a recording / recording function, a data input / output function, It is good also as a portable terminal which has various functions, such as a mail and an internet function. As a portable terminal, it is good also as what is called a smart phone, a mobile phone, iPad (trademark) larger than these, a notebook-type personal computer, etc., for example.
The portable information device 2 can be operated with fingers and the like, and the overall size of the portable information device 2 is such that the portable information device 2 can be carried while being held by hand or stored in a bag or the like.
In each of the following embodiments, an example in which a so-called smartphone is used as the portable information device 2 is shown.

In this embodiment, as shown to Fig.1 (a), the portable information device 2 is made into the thin plate-shaped body of the rectangular shape long in the top and bottom in planar view. In addition, a display unit on which various screens and the like are displayed on the surface (not shown) of the portable information device 2, and various operation units such as an activation unit, a charging connection unit, a volume control unit, an input / output terminal, A camera or the like is provided on the back surface 2b so as to be exposed.
Here, the planar view means a state where the portable information device 2 is viewed from the display unit side, and the surface 2a is a surface on the side where the display unit is provided. In FIG. 1A, the surface appearing on the front side in the drawing is the back surface 2b, and the front surface 2a is located on the back side and is not shown. Also, the vertical and horizontal directions are determined based on the orientation of the portable information device 2 when the portable information device 2 is gripped and operated by hand, and the vertical direction on the drawing of FIG. The left and right directions are the upper side and the lower side of the information device 2, respectively, and are the right side and the left side of the portable information device 2.

In the present embodiment, the main body portion 10 is disposed on the plate-like portion 11 that is a thin plate-like body having a rectangular shape in plan view and arranged so as to cover the back surface 2 b of the portable information device 2, and the outer peripheral end of the plate-like portion 11. It is set as the structure provided with the frame parts 12, 12, 12, and 12 which hold | maintain the outer peripheral edge part of the provided portable information device 2. FIG.
Further, the plate-like portion 11 is configured to cover substantially the entire back surface 2 b of the portable information device 2. In addition, the plate-shaped part 11 is good also as a structure which covers only a part of back surface 2b.

In the present embodiment, the frame portions 12, 12, 12, and 12 are provided at the four peripheral ends of the plate-like portion 11 so as to rise along the outer peripheral end surface of the portable information device 2. Further, the height dimensions of the frame bodies 12, 12, 12, 12 are set to be approximately the same as the plate thickness dimension of the portable information device 2.
Thereby, the main-body part 10 becomes the box-shaped body which has the opening part which made the plate-shaped part 11 the bottom part and provided the frame 12, 12, 12, 12 in the four peripheral edge part of this bottom part. With this configuration, the portable information device 2 is entirely housed in the box from the opening, and the surface (not shown) and the upper end surfaces of the frame bodies 12, 12, 12, 12 are substantially flush with each other. Become.

In the illustrated example, a through hole is provided in a portion near the upper right end of the plate-like body 11 so that the camera portion provided on the back surface 2b of the portable information device 2 is exposed. Further, a portion near the upper end of the frame body 12 (the one located on the left side) is omitted, and an intermediate portion of the frame body 12 (the one located on the lower side) is removed, and the portable information device 2 is respectively removed from these missing portions. Various operation units such as a volume control unit and a charging connection unit provided on the side end surface of the battery are exposed.
The frame body 12 is not limited to the frame body 12 provided at all the four circumferential end portions, and may be provided at a part of the four circumferential end portions. Or it is good also as a structure which is provided in all or a part of these four corners of the plate-like body 11 and holds the portable information device 2 with these.

As shown in FIG. 1 (b), the main body 10 has an electromagnetic wave reducing sheet 13 containing carbon and a cloth-like structure constituting an outermost layer fixed to the opposite surface of the portable information device 2 of the electromagnetic wave reducing sheet 13. A layer structure is formed by the body 15. The cloth-like body 15 stores a large number of superporous spherical fine particle activated carbons 100 having a particle size of 150 μm to 600 μm.
In the present embodiment, the plate-like portion 11 of the main body portion 10 has a layer structure composed of the electromagnetic wave reducing sheet 13 and the cloth-like body 15, and FIG. 1B is a cross-sectional view of the plate-like portion 11 (FIG. ) Is a cross-sectional view taken along line AA of FIG. The frame bodies 12, 12, 12, and 12 may have a layer structure including the electromagnetic wave reducing sheet 13 and the cloth body 15, similarly to the plate body 11.
The main body 10 has a structure in which an electromagnetic wave reducing sheet 13 and a cloth-like body 15 are arranged in order from the side facing the portable information device 2 in a state where the main body 10 is mounted on the back surface 2b side of the portable information device 2. It has become.

In the present embodiment, as shown in FIG. 1B, each of the electromagnetic wave reducing sheet 13 and the cloth-like body 15 is constituted by a single layer, and the cloth-like body 15 is disposed via the adhesive layer 14. Is fixed to the opposite surface of the portable information device 2. Thereby, the main-body part 10 (plate-shaped object 11) has a three-layer structure as a whole. Note that each layer of the electromagnetic wave reducing sheet 13 and the cloth-like body 15 may be a plurality of layers.
As the adhesive layer 14, for example, a combination of an acrylic resin emulsion and a vinyl acetate resin emulsion may be used, or any one of these may be used. Can be used.

The electromagnetic wave reduction sheet 13 is a sheet body containing carbon, and is made of a soft material that is not easily damaged. As the electromagnetic wave reducing sheet 13, a sheet having a high conductivity can be used, and for example, a carbon fiber sheet, a graphite sheet, a griffite, or the like may be used.
Such a sheet with high conductivity has an action of attenuating various electromagnetic energy. For example, in the stage where the electromagnetic wave passes through the sheet, the action of reducing electromagnetic wave energy at the interface between the sheet and air, or the action of reducing electromagnetic wave energy by the overcurrent generated in the process of passing the electromagnetic wave through the sheet Etc. By these actions, it is possible to reduce the influence of the electromagnetic wave radiated from the portable information device 2, and it is possible to reduce the danger to the human body and the influence on the precision device.

In the present embodiment, the electromagnetic wave reducing sheet 13 is constituted by a flexible graphite sheet.
As the flexible graphite sheet, a sheet formed by expanding graphite into a form of expanded graphite and pressurizing it may be used. The thickness dimension of the flexible graphite sheet may be 0.05 mm to 3.00 mm. Desirably, a thickness of 0.13 mm is used.
Since the electromagnetic wave reducing sheet 13 emits far infrared rays, the health enhancing effect is brought about by the far infrared ray action on the hand or the like holding the portable information device 2. In addition, since it is porous and has humidity control, it has the effect of absorbing and deodorizing sweat, sebum and the like generated by hands.

Moreover, when using a flexible graphite sheet, the specific gravity of expanded graphite is 1.3, which is a relatively low value, so that the weight of the main body 10 is reduced. Furthermore, since the thermal conductivity of expanded graphite is a relatively high value of 300 W / (m · k), it has an excellent heat dissipation effect. As a result, excessive heat generation of the portable information device 2 is suppressed, and the transfer of heat to the gripping hand or the like is suppressed, thereby reducing the risk of burns and the like.
In addition, as the electromagnetic wave reduction sheet | seat 13, it is not limited to said thing, For example, you may use the carbon fabric material which formed the carbon fiber manufactured by carbonizing an acrylic fiber, a pitch, etc. at high temperature in the sheet form. Moreover, as the electromagnetic wave reduction sheet | seat 13, although the thing whose composition ratio of a carbon material is 95% or more is desirable, it is not limited to this.

  As shown in FIG. 1B, the cloth-like body 15 has a configuration in which a plurality of spherical fine particle activated carbons 100 are sandwiched between two cloth sheets 15a and 15a. The cloth sheet 15a is selected to have a texture that prevents the inner spherical fine particle activated carbon 100 from coming out. For example, natural cloth such as cotton and silk, and chemical fibers such as nylon and rayon are used. You may apply what was used as a raw material.

As shown in FIG. 2, the spherical fine particle activated carbon 100 has a substantially spherical shape. Thereby, even if the spherical fine particle activated carbon 100 leaks out from the cloth sheets 15a, 15a, there is almost no risk that the spherical fine particle activated carbon 100 will damage the skin or the like.
Inside the spherical fine particle activated carbon 100, a plurality of holes 101 that are open to the surface of the sphere are formed. These hole portions 101 have a plurality of macro holes 102 formed toward the inside of the sphere, and each macro hole 102 has a plurality of micro holes 103 so as to branch from the macro hole 102 as a trunk. Is formed. The hole size of the micro hole 103 is smaller than that of the macro hole 102. By providing a plurality of holes 101 having such a configuration, the spherical fine particle activated carbon 100 is superporous.

Since the spherical fine particle activated carbon 100 is a carbon material, it emits far infrared rays.
As the spherical fine particle activated carbon 100, carbon having a carbon purity of 90% or more may be used, and preferably 99.9% or more is used. Moreover, the thing of 150 micrometers-600 micrometers of spherical diameters may be used, and the thing of 180 micrometers-500 micrometers is used desirably. Further, a material having a pore volume of 0.9 cm 3 / g to 2.0 cm 3 / g and a pore peak diameter of 0.5 nm to 2.0 nm may be used. Here, the pore volume is the sum of the volumes in all the macropores 102 and micropores 103 formed in the spherical fine particle activated carbon 12, and the pore peak diameter is the pore volume 101. This refers to the largest of the opening diameters on the surface of the fine particle activated carbon 100.
Moreover, in this embodiment, the spherical fine particle activated carbon 100 is comprised with the carbonized phenol resin, and the specific surface area shall be 3300 m <2> / g or more. Here, the specific surface area is the total of the area of the spherical surface of the spherical fine particle activated carbon 100 and the area of the surfaces constituting the macropores 102 and the micropores 103 of all the pores 101.

The spherical fine particle activated carbon 1 may be manufactured as follows, for example.
The raw material phenol resin or the like is pulverized, and the pulverized pieces are processed to obtain a plurality of spheres. After this sphere is carbonized at a high temperature (for example, about 700 to 800 ° C.), the treated product is reacted with water vapor at a high temperature (for example, about 900 to 1000 ° C.) (steam activation). A porous structure is formed by this water vapor activation. Thereafter, purification is performed to remove impurities, and sieving is performed to obtain a spherical fine particle activated carbon 100 in which a large number of pores 101 having a desired particle size and desired macropores 102 and micropores 103 are formed.
The activation is not limited to steam activation, and may be performed using carbon dioxide, air, or the like. Further, alkali activation using KOH or the like may be performed. The raw material for the spherical fine particle activated carbon 12 is not limited to phenol resin, and may be coconut shell charcoal or lime.
As the spherical fine particle activated carbon 100, a material that does not break up into pieces even when a strong pressure or impact is applied, and that does not have a possibility that a pigment or the like adheres to the skin may be used. If such spherical fine particle activated carbon 100 is used, the cloth-like body 15 can be used in a state where it is more desirably in contact with or close to the skin.
Further, as the spherical fine particle activated carbon 100, for example, B's Wiper (registered trademark), or those manufactured by the manufacturing methods disclosed in Japanese Patent Nos. 4266711 and 4308740 can be suitably used. .

In this embodiment, the spherical fine particle activated carbon 100 is fixed to the cloth-like body 15 with a resinous solution 15b as shown in FIG.
As such a resinous solution 15b, an ionomer resin solution may be used, and a spherical fine particle activated carbon 100 in a state immersed in an ionomer resin solution is sandwiched between two cloth sheets 15a and 15a to form a cloth-like body 15 You may make it adhere to. Specifically, the solution soaked with the spherical fine particle activated carbon 100 is applied to one surface of one cloth sheet 15a, and the other cloth sheet 15a is adhered thereon. Thereafter, it is cured at 40 degrees, and the cloth-like body 15 may be formed by adhering between the cloth sheets 15a and 15a in a state where the spherical fine particle activated carbon 100 is sandwiched between the cloth sheets 15a and 15a. . The spherical fine particle activated carbon 100 may be contained in an amount of about 5.0 to 10.0% by weight with respect to the resinous solution 15b.

When the ionomer resin solution is cured at 40 degrees in this way, the cured product containing the spherical fine particle activated carbon 100 is in a cracked state, but the crack (fissure) becomes a gas flow path, and the inside of the cloth sheet 15a. Through the inter-fiber gap, the surface of the spherical fine particle activated carbon 100 can come into contact with the outside air. Thereby, effects such as deodorization of the spherical fine particle activated carbon 100 are exhibited.
Further, when the resinous solution 15 b is used in this way, the spherical fine particle activated carbon 100 can be firmly fixed to the cloth-like body 15.

In the present embodiment, as shown in FIG. 2, the spherical fine particle activated carbon 100 stores at least one of an antibacterial agent, a deodorant, and a fragrance as the functional substance 104.
These functional substances 104 are stored in the pores 101 of the spherical fine particle activated carbon 100 as shown in FIG. In the illustrated example, the functional substance 104 is stored in the macro hole 102 of the hole 101, but may be stored in the micro hole 103. Since the spherical fine particle activated carbon 100 is superporous having a plurality of pores 101, a large number of functional substances 104 can be efficiently contained in the pores 101.

As the antibacterial agent 104, an inorganic antibacterial agent 104 may be used, and an antibacterial metal or metal ion having an antibacterial action supported on an inorganic carrier may be used. As such an inorganic antibacterial agent 104, for example, a silver-based inorganic antibacterial agent (for example, Novalon (registered trademark)) that is powder may be used. The inorganic antibacterial agent 104 may be dissolved or dispersed in a solution and impregnated in the pores 101 of the spherical fine particle activated carbon 100. Thereby, the cloth-like body 15 containing the spherical fine particle activated carbon 100 can be made to have an antibacterial effect such that it is difficult for bacteria to propagate, and the cloth-like body 15 can be prevented from deteriorating.
When skin sweat, sebum, and the like are sucked into the cloth-like body 15, they are decomposed by various bacteria present on the skin surface in contact with the cloth-like body 15, and a so-called decomposition odor is generated. If the antibacterial agent 104 as described above is included in the spherical fine particle activated carbon 100, the germs die due to this, so that the decomposition of sweat, sebum and the like by the germs is suppressed, and the generation of malodor is suppressed.

As the deodorant 104, a substance having an action of decomposing the odor component by oxidizing the odor component with active oxygen to change to another substance may be used. As such a deodorant 104, there is DEORASE (registered trademark). This DEORASE (registered trademark) does not show a decrease in the deodorizing effect due to the elimination of the central metal under alkaline conditions, and brings about a cycle reaction similar to the enzyme in the living body. Compared with the agent, the deodorizing effect is remarkably sustained. In general, it is known that the reactivity of the cycle reaction is reduced by moisture due to moisture absorption, but DEORASE (registered trademark) has been shown to improve the reactivity by moisture absorption.
In addition, as the deodorizing agent 104, for example, a material using an iron-based phthalocyanine that is an artificial enzyme may be employed.
As described above, the sweat, sebum, and the like of the skin sucked into the cloth-like body 15 are decomposed by various germs existing in the skin that comes into contact, so that a bad odor that is a so-called decomposition odor is generated. By including the deodorant 104 as described above in the cloth-like body 15, sweat, sebum, and the like are decomposed by this, so that there is no object to which miscellaneous bacteria decompose, and the generation of bad odor is suppressed.
The fragrance 104 may be a substance containing various odorous components such as citrus or aroma oil. Moreover, it is good also as what consists of natural materials, and what was synthesize | combined artificially.

  When the functional substance 104 such as antibacterial agent, deodorant, and fragrance as described above is included in the spherical fine particle activated carbon 100, the functional substance 104 is dissolved or dispersed in the ionomer resin solution in which the spherical fine particle activated carbon 100 is immersed. Then, it may be adsorbed on the spherical fine particle activated carbon 100. Since the spherical fine particle activated carbon 100 is superporous, these functional substances 104 can be easily contained in the pores 101 of the spherical fine particle activated carbon 100 by this method. These functional substances 104 may be included in other parts of the cloth-like body 15, for example, the cloth sheet 15a.

Although the board thickness dimension of the main-body part 10 (plate-shaped part 11) is not limited, For example, it is good also as about 1.0 mm-1.0 cm. Moreover, although the thickness dimension of the electromagnetic wave reduction sheet | seat 13, the cloth-like body 15, and the contact bonding layer 14 which comprises the plate-shaped part 11 is not limited, 0.1 mm-7.0 mm, 0.1 mm-7 respectively. It is good also as about 0.0 mm and 0.01 mm-5.0 mm. These thickness dimensions may be appropriately determined according to the type of the portable information device 2, the intended use of the electromagnetic wave reduction cover 1, the required degree of electromagnetic wave reduction, and the like.
Note that the thickness dimension of the frame body 12 may be an appropriate dimension according to the application or the like, and the plate thickness of the frame body 12 may be substantially the same as that of the plate-like portion 11.

In the above-described embodiment, the main body portion 10 of the electromagnetic wave reduction cover 1 is a box-like body that includes the plate-like portion 11 and the frame portions 12, 12, 12, and 12 provided at the outer peripheral end portions thereof. Although an example in which the portable information device 2 is housed is shown, the present invention is not limited to this mode.
The main body 10 may have only the plate-like part 11 without providing the frame part 12.
As the main body 10 having such a configuration, for example, it may be a single member that constitutes a storage case of the portable information device 2, or a configuration that can be replaced as a consumable. Moreover, the main-body part 10 is good also as a sticking sticker stuck to the back surface 2b of the portable information device 2, and good also as what is stuck to the back surface 2b so that attachment or detachment is possible.

Moreover, in order to prevent the pigment | dye of the electromagnetic wave reduction sheet | seat 13 which comprises the main-body part 10 from adhering to the back surface 2b of the portable information device 2, when attaching the electromagnetic wave reduction cover 1 to the portable information device 2, an electromagnetic wave reduction sheet | seat is prevented. You may stick a sheet | seat body etc. on the surface by the side of 13 portable information devices 2. FIG.
As the sheet body, for example, a cloth fabric material used for paper, natural cloth, or the like may be used. Moreover, you may use the sheet | seat body which consists of a soft material which cannot be damaged easily. If such a sheet body is used, not only the color transfer of the electromagnetic wave reducing sheet 13 is prevented, but also the main body portion 10 is reinforced and the main body portion 10 is prevented from being damaged. The thickness dimension of the sheet body may be, for example, about 0.1 mm to 7.0 mm.

The electromagnetic wave reduction cover 1 according to the present embodiment has the above-described configuration, in addition to the electromagnetic wave reduction effect of the portable information device 2, a health promotion effect due to a remarkable far-infrared action, and a sucking effect such as sweat and sebum on hands. Deodorizing effect.
That is, the main body portion 10 included in the electromagnetic wave reduction cover 1 includes an electromagnetic wave reduction sheet 13 containing carbon, and a cloth-like body 15 constituting an outermost layer attached to a surface opposite to the portable information device 2; Thus, a layer structure is formed. The cloth-like body 15 stores a large number of superporous spherical fine particle activated carbons 100 having a particle size of 150 μm to 600 μm.
Accordingly, sweat such as hands, sebum, and odorous molecules are easily adsorbed in the pores 101 of the spherical fine particle activated carbon 100, and a remarkable sweat and sebum absorption effect and a body odor deodorization effect are exhibited.
Moreover, since the spherical fine particle activated carbon 100 contained in the cloth-like body 15 is a carbon material and emits far infrared rays, the blood flow of the human body is promoted by the action of the far infrared rays, and the health promoting effect is exhibited.
Further, since the spherical fine particle activated carbon 100 is superporous having a plurality of pores 101, various functional substances 104 such as antibacterial agents, deodorants, and fragrances are stored in the pores 101. Can do.

Moreover, in this embodiment, since the spherical fine particle activated carbon 100 is comprised from the carbonized phenol resin, it has a more remarkable far-infrared radiation effect compared with other general activated carbon. Furthermore, it is easy to form a large number of hole portions 101 including the macro holes 102 and the micro holes 103 having the above-described structure in the spherical fine particle activated carbon 100.
The specific surface area of the spherical fine particle activated carbon 101 is set to 3,300 m 2 / g. This is a very large area corresponding to about 2200 tatami mats, and the sweat, sebum, and odorous molecules of the skin are easily adsorbed into the pores 101 of the spherical fine particle activated carbon 100, and the more remarkable sweat and sebum. The effect of sucking up and deodorizing the body odor can be achieved.
In the present embodiment, at least one of the antibacterial agent, the deodorant, and the fragrance functional substance 104 is stored in the hole 101 of the spherical fine particle activated carbon 100. Therefore, in addition to the deodorizing effect described above, various functions according to the functional substance 104 to be stored can be imparted to the spherical fine particle activated carbon 100.

In addition, the electromagnetic wave reduction sheet 13 containing carbon included in the main body 15 is a sheet having a high electrical conductivity, and has an effect of reducing electromagnetic wave energy, so that the influence of the electromagnetic wave emitted from the portable information device 2 can be reduced. .
Furthermore, since the electromagnetic wave reducing sheet 13 emits far infrared rays, blood flow such as a hand is promoted, and a health promotion effect can be obtained.
Further, the electromagnetic wave reducing sheet 13 is made of a soft material and is not easily damaged, so that it is difficult to be damaged even when a strong impact is applied.
Furthermore, since the cloth-like body 15 is arranged on the electromagnetic wave reduction sheet 13, when the portable information device 2 to which the electromagnetic wave reduction cover 1 is attached is gripped by hand, the pigment of the electromagnetic wave reduction sheet 13 is used. It is prevented from moving to hands.

The aspect in which the spherical fine particle activated carbon 100 is included in the cloth-like body 15 is limited to the above-described aspect in which the spherical fine particle activated carbon 100 is fixed to the cloth-like body 15 using the resinous solution 15b. Absent. A bag-like portion may be provided inside the cloth-like body 15, and the spherical fine particle activated carbon 100 may be accommodated in the bag-like portion.
The bag-shaped part may be any one having a storage space for the spherical fine particle activated carbon 100 inside, for example, a natural fiber such as cotton or silk, or a chemical fiber such as nylon or rayon as a raw material. It may be made of a cloth-like material.
After the spherical fine particle activated carbon 100 is accommodated in the bag-like portion, the spherical fine particle activated carbon 100 is prevented from leaking from the inside by fixing the edge of the bag-like portion with an adhesive or by sewing with a thread or the like. It may be. Further, the bag-like part itself may be fixed to the cloth-like body 15 or may be sewn. Moreover, as a bag-shaped part, what was previously provided in the cloth-like body 15 as a ready-made product may be used, and you may form newly. Further, the spherical fine particle activated carbon 100 may be fixed in the bag-like portion using the resinous solution 15b.

  As described above, when the spherical fine particle activated carbon 100 is housed in the bag-like portion provided in the cloth-like body 15, the spherical fine particle activated carbon 100 is fixed in the cloth-like body 15 using the resinous solution 15a. Compared to the above, the spherical fine particle activated carbon 100 can be fixed to the cloth-like body 15 easily and inexpensively. Further, when the bag-like portion is provided in advance on the cloth-like body 15 as an off-the-shelf product, since the spherical fine particle activated carbon 100 can be accommodated therein, a bag-like portion is newly formed. Hassle-free.

Next, the electromagnetic wave reduction cover 1A according to the second embodiment of the present invention will be described.
As shown in FIG. 3A, the electromagnetic wave reduction cover 1 </ b> A according to the second embodiment has an opening that covers the portable information device 2 so as to enclose the entire portable information device 2 in addition to the main body 10. A box-like body 20 having a portion 21 is further provided.

The box-shaped body 20 is constituted by five rectangular thin plate-like surface portions, and these surface portions are composed of a bottom surface portion 26 and side surface portions 22, 23, 24, 25 provided to rise from the four peripheral ends of the bottom portion 26. .
As shown in FIG. 3 (b), the box 20 is covered with the portable information device 2 so that the entire portable information device 2 is included in the box 20 through the opening 21. It has a configuration. In the illustrated example, the box-shaped body 20 is covered so as to include the entire portable information device 2 in a state where the portable information device 2 to which the main body 10 is mounted is placed on the mounting surface 3 such as a desk. The state of being placed on the placement surface 3 is shown. In this state, a gap is formed between the portable information device 2 and each surface portion 22, 23, 24, 25, 26 of the box 20.

As shown in FIG. 3 (b), each of the surface portions 22, 23, 24, 25, and 26 constituting the box-like body 20 has a second cloth-like body 29 arranged on the outermost layer. The layer structure which has arrange | positioned the 2nd electromagnetic wave reduction sheet | seat 27 containing carbon in the layer inside is formed. The second cloth-like body 29 stores a large number of superporous spherical fine particle activated carbons 100 having a particle size of 150 μm to 600 μm.
The second cloth-like body 29 has the same configuration as that of the cloth-like body 15 according to the first embodiment. As shown in FIG. 3B, a plurality of spherical fine particles are provided between the two cloth sheets 29a and 29a. The activated carbon 100 is sandwiched. In addition, the spherical fine particle activated carbon 100 is fixed to the second cloth-like body 29 with a resinous solution 29b.
Further, the second cloth-like body 29 is fixed to the surface of the second electromagnetic wave reducing sheet 27 on the opposite side of the portable information device 2 through the adhesive layer 28. As the adhesive layer 28, the same configuration as the adhesive layer 14 described above may be used.

In the present embodiment, the electromagnetic wave reduction cover 1 </ b> A is further provided with a box-like body 20 having an opening 21 that covers the portable information device 2 so as to enclose the entire portable information device 2 in addition to the main body 10. The surface portions 22, 23, 24, 25, and 26 constituting the box-shaped body 20 are arranged, the second cloth-shaped body 29 is arranged on the outermost layer, and the inner layer of the second cloth-shaped body 29 is arranged. A layer structure in which a second electromagnetic wave reduction sheet 27 containing carbon is disposed.
Therefore, when the portable information device 2 is used in a state where it is placed on a desk, or when it is temporarily placed on a desk or the like because it is not used, the portable information device 2 is carried over the box 20 from above. If the entire information device 2 is covered completely, the electromagnetic waves emitted by the portable information device 2 can be effectively reduced. In addition, the box 20 can be suitably used in situations where there is a high need to suppress the influence of electromagnetic waves, such as in hospitals and airplanes.

Next, the electromagnetic wave reduction cover 1B according to the third embodiment of the present invention will be described.
As shown in FIG. 4, the electromagnetic wave reduction cover 1 </ b> B according to the third embodiment is a surface on the display unit side of the portable information device 2 in addition to the main body portion 10 arranged to cover the back surface 2 b of the portable information device 2. The display unit cover 17 is further provided so as to be openable and closable so as to cover the (surface) 2a.
A connecting portion 16 is provided at an end of the main body portion 10, and a display unit cover 17 is connected to the connecting portion 16.
The connecting portion 16 is made of a soft material such as leather or cloth, is provided at one of the four peripheral ends of the main body portion 10, and functions as a so-called hinge. The connection part 16 may be provided in the substantially whole one side edge part of the main-body part 10, and may be provided only in the center part of one side edge part, or only at both ends.

  The display unit cover 17 has a rectangular thin plate shape that covers substantially the entire surface 2a of the portable information device 2. The display unit cover 17 is movable with the connecting portion 16 as a support shaft and is covered with the surface 2a of the portable information device 2. It is possible to perform an operation of moving away from the head, that is, an opening / closing operation. FIG. 4 illustrates a state in which the display unit cover 17 is separated from the surface 2a so that the surface 2a of the portable information device 2 is exposed, that is, an open state.

The display unit cover 17 may be made of a hard material such as resin, wood, cloth, or paper. If constituted by such a hard material, it also has a function as a protective cover for preventing the surface 2a of the portable information device 2 from being damaged.
The size of the display unit cover 17 may be sufficient to cover the entire surface 2a of the portable information device 2, and the plate thickness may be, for example, about 1.0 mm to 1.0 cm.

In the same manner as the box-shaped body 20 described above, the display unit cover 17 is a layer in which the cloth-like body 15 is arranged on the outermost layer, and the electromagnetic wave reducing sheet 13 containing carbon is arranged on the inner layer of the cloth-like body 15. It may be configured in a structure.
If the display unit cover 17 has such a configuration, the above-described electromagnetic wave reduction effect, sweat absorption effect, and the like can be more effectively exhibited.
Moreover, although the thing of the example of the figure has shown the aspect which provided the frame parts 12, 12, 12, and 12 in the four peripheral edge part of the main-body part 10, it is not limited to this, A frame is provided only in the four corners of the main-body part 10. Various configurations such as providing the portion 12 may be employed.

In the present embodiment, the electromagnetic wave reducing cover 1B is connected to the connecting portion 16 provided at the end of the main body portion 10 and the display that is connected to the connecting portion 16 and can be opened and closed so as to cover the surface 2a of the portable information device 2. It further includes a part cover 17.
Accordingly, the display unit cover 17 is moved with the connecting unit 16 as a support shaft, and an opening / closing operation such as covering or separating from the surface 2a of the portable information device 2 can be performed. It can be applied as a storage case for the portable information device 2.

Next, the electromagnetic wave reduction cover 1 </ b> C according to the fourth embodiment will be described.
As shown in FIG. 5A, the electromagnetic wave reduction cover 1C according to the fourth embodiment is attached to the portable information device 2 and is disposed so as to cover at least the back surface 2b of the portable information device 2. Part 30.

In the present embodiment, the main body portion 30 is disposed on the plate-like portion 31 that is a thin plate-like body having a rectangular shape in plan view and is arranged so as to cover the back surface 2 b of the portable information device 2, It is set as the structure provided with the frame parts 12, 12, 12, and 12 which hold | maintain the outer peripheral edge part of the provided portable information device 2. FIG.
The plate-like portion 31 is configured to cover substantially the entire back surface 2b of the portable information device 2. In addition, the plate-shaped part 31 is good also as a structure which covers only a part of back surface 2b.

In the present embodiment, the frame portions 12, 12, 12, and 12 are provided at the four peripheral ends of the plate-like portion 31 so as to rise along the outer peripheral end surface of the portable information device 2. Further, the height dimensions of the frame bodies 12, 12, 12, 12 are set to be approximately the same as the plate thickness dimension of the portable information device 2.
As a result, the main body 30 has a box-like shape having an opening portion in which the plate-like portion 31 is a bottom portion and the frame bodies 12, 12, 12 and 12 are provided at the four peripheral ends of the bottom portion. With this configuration, the portable information device 2 is entirely housed in the box from the opening, and the surface (not shown) and the upper end surfaces of the frame bodies 12, 12, 12, 12 are substantially flush with each other. Become.

In the example shown in the figure, a through hole is provided in the vicinity of the upper right end of the plate-like body 31 so that the camera part provided on the back surface 2b of the portable information device 2 is exposed. Further, a portion near the upper end of the frame body 12 (the one located on the left side) is omitted, and an intermediate portion of the frame body 12 (the one located on the lower side) is removed, and the portable information device 2 is respectively removed from these missing portions. Various operation units such as a volume control unit and a charging connection unit provided on the side end surface of the battery are exposed.
Note that the frame body 12 is not limited to the one provided on all of the four circumferential end portions of the plate-like body 31, and may be provided on a part of the four circumferential end portions. Or it is good also as a structure which is provided in all or a part of the four corners of the plate-like body 31 and holds the portable information device 2 by these.

As shown in FIG. 5 (b), the main body 30 is composed of an electromagnetic wave reducing sheet 13 containing carbon and an activated carbon fiber constituting an outermost layer fixed to the opposite surface of the portable information device 2 of the electromagnetic wave reducing sheet 13. The sheet 32 forms a layer structure.
In the present embodiment, the plate-like portion 31 of the main body portion 30 has a layer structure composed of the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32. FIG. 5B is a cross-sectional view of the plate-like portion 31 (FIG. 3A). ) Is a cross-sectional view taken along the line CC of FIG. The frame bodies 12, 12, 12, 12 may also have a layer structure including the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32, similarly to the plate-like body 31.
The main body 30 has a structure in which the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32 are arranged in order from the side facing the portable information device 2 in a state where the main body 30 is mounted on the back surface 2b side of the portable information device 2. It has become.

In the present embodiment, as shown in FIG. 5B, each of the electromagnetic wave reduction sheet 13 and the activated carbon fiber sheet 32 is constituted by a single layer, and the activated carbon fiber sheet 32 is disposed through the adhesive layer 14. Is fixed to the opposite surface of the portable information device 2. Thereby, the main-body part 30 (plate-like body 31) has a three-layer structure as a whole. Each layer of the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32 may be a plurality of layers.
As the adhesive layer 14, for example, a combination of an acrylic resin emulsion and a vinyl acetate resin emulsion may be used, or any one of these may be used. Can be used.

The electromagnetic wave reduction sheet 13 is a sheet body containing carbon, and is made of a soft material that is not easily damaged. As the electromagnetic wave reducing sheet 13, a sheet having a high conductivity can be used, and for example, a carbon fiber sheet, a graphite sheet, a griffite, or the like may be used.
Such a sheet with high conductivity has an action of attenuating various electromagnetic energy. For example, in the stage where the electromagnetic wave passes through the sheet, the action of reducing electromagnetic wave energy at the interface between the sheet and air, or the action of reducing electromagnetic wave energy by the overcurrent generated in the process of passing the electromagnetic wave through the sheet Etc. By these actions, it is possible to reduce the influence of the electromagnetic wave radiated from the portable information device 2, and it is possible to reduce the danger to the human body and the influence on the precision device.

In the present embodiment, the electromagnetic wave reducing sheet 13 is constituted by a flexible graphite sheet.
As the flexible graphite sheet, a sheet formed by expanding graphite into a form of expanded graphite and pressurizing it may be used. The thickness dimension of the flexible graphite sheet may be 0.05 mm to 3.00 mm. Desirably, a thickness of 0.13 mm is used.
Since the electromagnetic wave reducing sheet 13 emits far infrared rays, the health enhancing effect is brought about by the far infrared ray action on the hand or the like holding the portable information device 2. In addition, since it is porous and has humidity control, it has the effect of absorbing and deodorizing sweat, sebum and the like generated by hands.

Further, when using a flexible graphite sheet, the specific gravity of expanded graphite is 1.3, which is a relatively low value, so that the weight of the main body 30 is reduced. Furthermore, since the thermal conductivity of expanded graphite is a relatively high value of 300 W / (m · k), it has an excellent heat dissipation effect. As a result, excessive heat generation of the portable information device 2 is suppressed, and the transfer of heat to the gripping hand or the like is suppressed, thereby reducing the risk of burns and the like.
In addition, as the electromagnetic wave reduction sheet | seat 13, it is not limited to said thing, For example, you may use the carbon fabric material which formed the carbon fiber manufactured by carbonizing an acrylic fiber, a pitch, etc. at high temperature in the sheet form. Moreover, as the electromagnetic wave reduction sheet | seat 13, although the thing whose composition ratio of a carbon material is 95% or more is desirable, it is not limited to this.

The activated carbon fiber sheet 32 is a sheet body made of a soft material that is not easily damaged, and is composed of a cloth fabric material having activated carbon fibers.
In this embodiment, as shown in FIG. 6, the activated carbon fiber sheet 32 is formed by sewing a plurality of belt-shaped activated carbon fiber materials 32a and 32a with sewing threads 32b and 32b.
Such an activated carbon fiber sheet 32 may be manufactured by the following method. That is, first, a phenol resin is added to the activated carbon fiber to form a fiber, followed by carbonization to form a plurality of activated carbon fiber strips (so-called warp yarns) 32a and 32a. Next, the activated carbon fiber sheet 32 is manufactured by arranging the plurality of warp yarns 32a and 32a in parallel and weaving sewing yarns (so-called weft yarns) 32b and 32b such as silk to create various patterns and patterns. You may do it. For example, the warp yarns 32a and 32a may be formed to a length of 30 cm to 60 cm, and the activated carbon fiber sheet 32 may be formed by weaving the weft yarns 32b and 32b having a length of 1 to 20 m into the warp yarns 32a and 32a.
Moreover, since the activated carbon fiber sheet 32 is a layer that is in direct contact with a hand or the like, it is desirable to configure the sheet so that the pH value is 7 or less in order to ensure safety.
In addition, what is called a Nishijin weaving technique can be used for manufacture of the above activated carbon fiber sheets 32. FIG.

  If the activated carbon fiber sheet 32 is configured by sewing a plurality of belt-like activated carbon fiber materials 32a and 32a with sewing threads 32b and 32b, the design of various patterns and patterns on the surface of the activated carbon fiber sheet 32 is possible. Can be applied. Since the activated carbon fiber sheet 32 is the outermost layer exposed to the outside in the electromagnetic wave reduction cover 1, the design applied to the surface is exposed and the fashionability of the electromagnetic wave reduction cover 1C can be enhanced. Further, if the activated carbon fiber sheet 32 is manufactured using the Nishijin weaving technique, the design and pattern of the Nishijin weaving can be revealed, and therefore the fashionability of the electromagnetic wave reducing cover 1C can be further enhanced.

Since the activated carbon fiber used for the activated carbon fiber sheet 32 emits far infrared rays, the far infrared effect is stronger against the hand holding the portable information device 2 due to the synergistic effect with the far infrared ray action of the electromagnetic wave reducing sheet 13. Can bring.
Moreover, since the activated carbon fiber is porous and has a function of absorbing molecules, it has an effect of absorbing and deodorizing sweat such as hands and sebum.
Furthermore, since the activated carbon fibers are aggregates of granular materials, there is no possibility of piercing the skin and there is no adverse effect on the skin. Moreover, since the activated carbon fiber is excellent in abrasion resistance and has an affinity with the human body, it is suitable for use in the activated carbon fiber sheet 32 that comes into contact with a hand or the like. In addition, since the specific gravity of the activated carbon fiber is 1.27, which is a relatively low value, the use of the activated carbon fiber sheet 32 can reduce the weight of the electromagnetic wave reduction cover 1C. Moreover, since the activated carbon fiber sheet 15 as the outermost layer is disposed on the electromagnetic wave reducing sheet 13, color transfer of the pigment of the electromagnetic wave reducing sheet 13 to the hand or the like is prevented.
In addition, as a fabric woven material having activated carbon fibers used for the activated carbon fiber sheet 32, it is desirable to use a carbon material having a composition ratio of 95% or more, but is not limited thereto. Further, as the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32 constituting the main body portion 30, those having substantially the same shape and substantially the same size may be used.

The main body portion 30 of the electromagnetic wave reduction cover 1C may contain an inorganic antibacterial agent or deodorant as described above.
In addition, the site | part which contains these inorganic type antibacterial agents and deodorizers is not limited, You may make it include in any site | part in each layer which comprises the main-body part 30, However, Activated carbon fiber sheet 32 is desirable. Include in. Since the activated carbon fiber sheet 32 is porous, an antibacterial agent can be suitably contained in the pores. The inorganic antibacterial agent may be included in the main body 30 without being dissolved or dispersed in the solution.

Although the board thickness dimension of the main-body part 30 (plate-shaped part 31) is not limited, For example, it is good also as about 1.0 mm-1.0 cm. Moreover, although the thickness dimension of the electromagnetic wave reduction sheet | seat 13, the activated carbon fiber sheet 32, and the contact bonding layer 14 which comprises the plate-shaped part 31 is not limited, 0.1 mm-7.0 mm, 0.1 mm-7 respectively. It is good also as about 0.0 mm and 0.01 mm-5.0 mm. These thickness dimensions may be appropriately determined according to the type of the portable information device 2, the intended use of the electromagnetic wave reduction cover 1C, the required degree of electromagnetic wave reduction, and the like.
Note that the thickness dimension of the frame body 12 may be an appropriate dimension according to the application or the like, and the plate thickness of the frame body 12 may be substantially the same as that of the plate-like portion 31.

In the above-described embodiment, the main body 30 of the electromagnetic wave reduction cover 1C is a box-shaped body including the plate-like portion 31 and the frame portions 12, 12, 12, 12 provided at the outer peripheral end portions thereof. Although an example in which the portable information device 2 is housed is shown, the present invention is not limited to this mode.
The main body portion 30 may be configured by only the plate-like portion 31 without providing the frame portion 12.
As the main body part 30 having such a configuration, for example, it may be a single member that constitutes a storage case of the portable information device 2, or may be a structure that can be replaced as a consumable item. Moreover, the main body 30 may be an adhesive seal that is attached to the back surface 2b of the portable information device 2, or may be attached to the back surface 2b in a detachable manner.

Further, in order to prevent the pigment of the electromagnetic wave reducing sheet 13 constituting the main body 30 from adhering to the back surface 2b of the portable information device 2 when the electromagnetic wave reducing cover 1C is attached to the portable information device 2, the electromagnetic wave reducing sheet You may stick a sheet | seat body etc. on the surface by the side of 13 portable information devices 2. FIG.
As the sheet body, for example, a cloth fabric material used for paper, natural cloth, or the like may be used. Moreover, you may use the sheet | seat body which consists of a soft material which cannot be damaged easily. If such a sheet body is used, not only the color transfer of the electromagnetic wave reducing sheet 13 is prevented, but also the main body 30 is reinforced and the main body 30 is prevented from being damaged. The thickness dimension of the sheet body may be, for example, about 0.1 mm to 7.0 mm.

The electromagnetic wave reduction cover 1 </ b> C according to the present embodiment has the above-described configuration, in addition to the electromagnetic wave reduction effect of the portable information device 2, the health enhancement effect due to the remarkable far-infrared action, and the absorption effect such as sweat and sebum on the hand. Deodorizing effect.
That is, the electromagnetic wave reducing cover 1C includes a main body portion 30 including an electromagnetic wave reducing sheet 13 containing carbon and an activated carbon fiber sheet 32 as an outermost layer attached to the surface opposite to the portable information device 2. A layer structure is formed. Since both of the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32 have a function of absorbing molecules, the effect of absorbing and deodorizing sweat such as hands and sebum is brought about.
Further, the electromagnetic wave reducing sheet 13 containing carbon included in the main body 30 is a sheet having a high electrical conductivity, and has an effect of reducing electromagnetic wave energy, so that it is possible to reduce the influence of the electromagnetic wave emitted by the portable information device 2. .

Furthermore, the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32 both radiate far infrared rays, and these are provided over substantially the entire body 30 as a layer having a certain thickness. Therefore, for example, a larger amount of far-infrared radiation is emitted than in the case where a plurality of fibrous substances that radiate far-infrared rays are partially provided in the main-body portion 30, so that the main-body portion 30 contacts. The blood flow promotion of the hand and the like is further improved, and a greater health promotion effect can be obtained.
Moreover, since the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32 are made of a soft material and are not easily damaged, the electromagnetic wave reducing cover 1C is hardly damaged even when a strong impact is applied.
Furthermore, since the activated carbon fiber sheet 32 is arranged on the electromagnetic wave reduction sheet 13, when the portable information device 2 equipped with the electromagnetic wave reduction cover 1C is gripped by hand, the pigment of the electromagnetic wave reduction sheet 13 is used. It is prevented from moving to hands.

Next, an electromagnetic wave reduction cover 1D according to the fifth embodiment of the present invention will be described.
As shown in FIG. 7A, the electromagnetic wave reduction cover 1 </ b> D according to the fifth embodiment has an opening that covers the portable information device 2 so as to enclose the entire portable information device 2 in addition to the main body 30. A box-like body 40 having a portion 41 is further provided.

The box-shaped body 40 is constituted by five rectangular thin plate-like surface portions, and these surface portions include a bottom surface portion 46 and side surface portions 42, 43, 44, 45 provided so as to rise from the four peripheral ends of the bottom portion 26. .
As shown in FIG. 7B, the box 40 is covered with the portable information device 2 so that the entire portable information device 2 is included in the box 40 through the opening 41. It has a configuration. In the illustrated example, the box-shaped body 40 is covered so as to include the entirety of the portable information device 2 in a state where the portable information device 2 to which the main body 30 is mounted is placed on the mounting surface 3 such as a desk. The state of being placed on the placement surface 3 is shown. In this state, a gap is formed between the portable information device 2 and each surface portion 42, 43, 44, 45, 46 of the box 40.

As shown in FIG. 7 (b), each surface portion 42, 43, 44, 45, 46 constituting the box-shaped body 40 has a second activated carbon fiber sheet 49 disposed on the outermost layer, and the second activated carbon fiber sheet 49. The layer structure which has arrange | positioned the 2nd electromagnetic wave reduction sheet | seat 27 containing carbon in the layer inside is formed.
Further, the second activated carbon fiber sheet 49 is fixed to the surface of the second electromagnetic wave reducing sheet 27 on the opposite side of the portable information device 2 through the adhesive layer 28. As the adhesive layer 28, the same configuration as the adhesive layer 14 described above may be used.

In the present embodiment, the electromagnetic wave reduction cover 1 </ b> D is further provided with a box-like body 40 having an opening 41 that covers the portable information device 2 so as to enclose the entire portable information device 2 in addition to the main body 30. The surface portions 42, 43, 44, 45, 46 constituting the box-shaped body 40 are arranged, the second activated carbon fiber sheet 49 is arranged in the outermost layer, and the inner layer of the second activated carbon fiber sheet 49 is arranged. A layer structure in which a second electromagnetic wave reduction sheet 27 containing carbon is disposed.
Therefore, when the portable information device 2 is used in a state where it is placed on a desk or when the portable information device 2 is temporarily placed on a desk or the like because it is not used, the portable information device 2 is carried over the box 40 from above. If the entire information device 2 is covered completely, the electromagnetic waves emitted by the portable information device 2 can be effectively reduced. Moreover, this box 40 can be used suitably in the situation where it is highly necessary to suppress the influence of electromagnetic waves, such as in a hospital or an airplane.

Next, the electromagnetic wave reduction cover 1E according to the sixth embodiment of the present invention will be described.
As shown in FIG. 8, the electromagnetic wave reduction cover 1 </ b> E according to the sixth embodiment includes a surface on the display unit side of the portable information device 2 in addition to the main body 30 arranged to cover the back surface 2 b of the portable information device 2. The display unit cover 17 is further provided so as to be openable and closable so as to cover the (surface) 2a.
A connecting portion 16 is provided at the end of the main body portion 30, and the display unit cover 17 is connected to the connecting portion 16.

  The structure of the frame part 12, the connection part 16, and the display part cover 17 is the same as that of the above-mentioned 3rd embodiment. Similarly to the third embodiment, similarly to the box 40 described above, the activated carbon fiber sheet 32 is disposed in the outermost layer, and the inner layer of the activated carbon fiber sheet 32 contains carbon. You may comprise in the layer structure which has arrange | positioned the electromagnetic wave reduction sheet | seat 13. As shown in FIG. Moreover, the effect which the electromagnetic wave reduction cover 1E which concerns on this embodiment has is the same as that of above-described 3rd embodiment.

Next, the far infrared ray action of the various carbon materials described above will be described.
Since the human body is composed of water 60% of the body composition and carbon 25% or more, and always emits far-infrared rays of 10 microns at an average body temperature of 36.5 ° C., an electromagnetic wave reduction cover having a carbon material When the portable information device 2 to which 1 to 1E is mounted is gripped with a hand or the like, the hand or the like absorbs far infrared rays emitted from the cover 1 to 1E and is heated. That is, the same wavelength between the carbon material (the electromagnetic wave reducing sheet 13, the cloth-like body 15 including the spherical fine particle activated carbon 100, the second electromagnetic wave reducing sheet 27, the second cloth-like body 29 including the spherical fine particle activated carbon 100) and the hand. By radiating far-infrared rays, the carbon material maintains a temperature of about 36.5 ° C. On the other hand, water molecules collide violently in hands and this vibration becomes kinetic energy, which is used as heat. It is converted and hands are heated.
As a result, far-infrared rays act on subcutaneous tissues and blood vessels to improve blood flow, but according to the present inventors, it has been confirmed that there is a 15% increase effect on peripheral and central blood flow. . Moreover, these carbon materials generate | occur | produce an alpha wave and heal a body and contribute to health promotion.

  The configurations of the electromagnetic wave reduction covers 1, 1A, 1B, 1C, 1D, and 1E are not limited to the respective embodiments and examples, and the materials, various dimensions, shapes, and the like are not limited.

1, 1A, 1B, 1C, 1D, 1E Electromagnetic wave reduction cover 10, 30 Main body part 13 Electromagnetic wave reduction sheet 15 Cloth-like body 16 Connection part 17 Display part cover 20, 40 Box-like body 21, 41 Opening part 22-26, 42 -46 surface part 27 2nd electromagnetic wave reduction sheet 29 2nd cloth-like body 32 activated carbon fiber sheet 49 2nd activated carbon fiber sheet 2 portable information device 2a surface (surface on the display unit side)
2b Back side 100 Spherical fine particle activated carbon

Claims (10)

An electromagnetic wave reduction cover attached to a portable information device,
The portable information device has a main body portion disposed so as to cover at least the back surface, and the main body portion is fixed to an electromagnetic wave reducing sheet containing carbon and a surface of the electromagnetic wave reducing sheet opposite to the portable information device. Forming a layer structure with the cloth-like body constituting the outermost layer, and the cloth-like body includes:
An electromagnetic wave reducing cover comprising a large number of superporous spherical fine particle activated carbons having a particle size of 150 to 600 μm. In claim 1,
The spherical fine particle activated carbon is an electromagnetic wave reducing cover characterized by having a specific surface area made of carbonized phenol resin and having a specific surface area of 3,300 m 2 / g or more. In either claim 1 or 2,
An electromagnetic wave reducing cover, wherein the spherical fine particle activated carbon contains at least one of an antibacterial agent, a deodorant and a fragrance. In any one of Claims 1-3,
The electromagnetic wave reducing cover further includes a box having an opening that covers the portable information device so as to enclose the entire portable information device, and each surface portion constituting the box has a grain shape. A second cloth-like body in which a large number of superporous spherical fine particle activated carbons having a diameter of 150 μm to 600 μm are stored is arranged in the outermost layer, and second electromagnetic wave reduction including carbon in the inner layer of the second cloth-like body An electromagnetic wave reducing cover characterized by forming a layer structure in which a sheet is arranged. In any one of Claims 1-3,
A connecting portion provided at an end of the main body, and a display portion cover that is connected to the connecting portion and is openable and closable so as to cover a surface on the display portion side of the portable information device. A featured electromagnetic wave reduction cover. An electromagnetic wave reduction cover attached to a portable information device,
The portable information device has a main body portion disposed so as to cover at least the back surface, and the main body portion is fixed to an electromagnetic wave reducing sheet containing carbon and a surface of the electromagnetic wave reducing sheet opposite to the portable information device. An electromagnetic wave reducing cover, wherein the activated carbon fiber sheet constituting the outermost layer has a layer structure. In claim 6,
The electromagnetic wave reducing cover, wherein the electromagnetic wave reducing sheet is made of a flexible graphite sheet. Either of claims 6 or 7,
The activated carbon fiber sheet is formed by sewing a plurality of belt-shaped activated carbon fiber materials with sewing threads. In any one of Claims 6-8,
The electromagnetic wave reduction cover further includes a box having an opening that covers the portable information device so as to enclose the entire portable information device, and each surface portion constituting the box has an outermost portion. An electromagnetic wave reduction cover characterized by forming a layer structure in which a second activated carbon fiber sheet is arranged in an outer layer and a second electromagnetic wave reduction sheet containing carbon is arranged in an inner layer of the second activated carbon fiber sheet. In any one of Claims 6-8,
A connecting portion provided at an end of the main body, and a display portion cover that is connected to the connecting portion and is openable and closable so as to cover a surface on the display portion side of the portable information device. A featured electromagnetic wave reduction cover.

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