JP6811471B2 - Electromagnetic wave reduction cover - Google Patents

Description

The present invention relates to an electromagnetic wave reduction cover that has an electromagnetic wave reduction effect and can improve health by the action of far infrared rays.

Conventionally, a storage case for a mobile information device having a configuration that reduces electromagnetic waves radiated by the mobile information device has been proposed. For example, in the electromagnetic wave absorption housing of Patent Document 1 below, the electromagnetic wave absorption fill contained in this housing is configured into a layer structure including a metal layer film that absorbs electromagnetic waves, whereby the electromagnetic waves radiated by the mobile information device are emitted. It is being reduced.
Further, in the case for electronic devices of Patent Document 2 below, a surface treatment layer is arranged on the outermost layer, and a bonding layer and a bamboo charcoal spray layer are arranged inside, and the bamboo charcoal contained in the bonding layer and the bamboo charcoal spray layer is used for a mobile phone. It is configured to absorb electromagnetic waves from.

Japanese Unexamined Patent Publication No. 2013-175691 Utility Model Registration No. 3135640

However, in Patent Document 1, since the decorative layer of the outermost layer of the electromagnetic wave absorbing fill is composed of a photocurable resin layer or the like, it does not have an effect of absorbing sweat or the like, and is used during a period of sweating such as summer. Has a problem that the hand holding the portable information device equipped with the electromagnetic wave absorbing housing becomes covered with sweat. Moreover, since this electromagnetic wave absorbing film does not have a far-infrared effect, it has no health-promoting effect.
Further, in Patent Document 2, although the bamboo charcoal contained in the bonding layer and the bamboo charcoal spray layer has a far-infrared ray action, the outermost surface treatment layer constituting the case for electronic devices is intended for surface protection and coloring. Yes, there is no function of absorbing sweat or the like here, 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 to reduce electromagnetic waves of mobile information devices, promote health by a remarkable far-infrared ray action, and sweat and sebum of hands and the like. It is an object of the present invention to provide an electromagnetic wave reduction cover capable of producing an absorption effect and a deodorizing effect.

In order to achieve the above object, the electromagnetic wave reduction cover according to the present invention is an electromagnetic wave reduction cover attached to a mobile information device, and has a main body portion arranged so as to cover at least the back surface of the mobile information device. The main body forms a layered structure by an electromagnetic wave reducing sheet containing carbon and a cloth-like body forming 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 ultraporous spherical fine particle activated charcoal having a particle size of 150 μm to 600 μm, and the electromagnetic wave reduction cover includes the mobile information so as to include the entire mobile information device. A box-shaped body having an opening for covering the device is further provided, and each surface portion constituting the box-shaped body is provided with a second cloth-shaped body in which the spherical fine particle activated charcoal is stored in the outermost layer. It is characterized in that a layer structure is formed in which a second electromagnetic wave reducing sheet containing carbon is arranged in the inner layer of the second cloth-like body .

In the present invention, the spherical fine particle activated carbon may have a specific surface area of 3,300 m2 / g or more.
Further, at least one of the antibacterial agent, the deodorant, and the fragrance may be stored in the spherical fine particle activated carbon .
Also of al, a connecting portion provided at an end portion of the main body portion, is connected to the connecting portion, and a display cover which is opened and closed so as to cover the surface of the display unit side of the portable information device Further, it may be provided.

In order to achieve the above object, the electromagnetic wave reduction cover according to the present invention is an electromagnetic wave reduction cover attached to a mobile information device, and has a main body portion arranged so as to cover at least the back surface of the mobile information device. , body portion, and an electromagnetic wave reduction sheet comprising carbon, and activated carbon fiber sheet constituting the outermost layer is secured to the opposite surface of the portable information apparatus of the electromagnetic wave reduction sheet forms a layer structure by The electromagnetic wave reduction sheet is made of a flexible graphite sheet .

In the present invention, the pre-SL activated carbon fiber sheet may be made by sewing a plurality of strip-shaped active carbon fiber material with sutures.
Further, the electromagnetic wave reduction cover is further provided with a box-shaped body having an opening that covers the portable information device so as to include the entire portable information device, and each surface portion constituting the box-shaped body. The second activated carbon fiber sheet may be arranged on the outermost layer, and a second electromagnetic wave reducing sheet containing carbon may be arranged on the inner layer of the second activated carbon fiber sheet.
Furthermore, a connecting portion provided at the end of the main body portion and a display portion cover connected to the connecting portion and openable and closable so as to cover a surface of the portable information device on the display portion side are further provided. It may be used as a cover.

According to the electromagnetic wave reduction cover according to the present invention, since it has the above-mentioned configuration, in addition to the electromagnetic wave reduction effect of the portable information device, the health promotion effect due to the remarkable far-infrared ray action, and the sweat and sebum of the hands and the like It has a suction effect and a deodorizing effect.

(A) is a perspective view of the electromagnetic wave reduction cover according to the first embodiment of the present invention, and (b) is a cross-sectional view of the electromagnetic wave reduction cover on the AA line. Is a cross-sectional view of the spherical fine particle activated carbon in the present embodiment. (A) is a perspective view of the electromagnetic wave reduction cover according to the second embodiment of the present invention, and (b) is a cross-sectional view of a box-shaped body included in the electromagnetic wave reduction cover on the BB line. 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 according to the fourth embodiment of the present invention, and (b) is a cross-sectional view of the electromagnetic wave reduction cover on the CC line. Is an explanatory view showing an example of the activated carbon fiber sheet in the present embodiment. (A) is a perspective view of the electromagnetic wave reduction cover according to the fifth embodiment of the present invention, and (b) is a cross-sectional view of a box-shaped body included in the electromagnetic wave reduction cover on the 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.
As shown in FIG. 1A, the electromagnetic wave reduction cover 1 according to the first embodiment is attached to the mobile information device 2, and is arranged so as to cover at least the back surface 2b of the mobile information device 2. It has a part 10.

Here, the mobile information device 2 is an information device that emits a portable electromagnetic wave, and has a camera function, a video shooting function, a telephone function, a viewing function such as a television or music, a recording / recording function, and a data input / output function. It may be a mobile terminal having various functions such as mail and Internet functions. The mobile terminal may be, for example, a so-called smartphone, a mobile phone, an iPad (registered trademark) larger than these, a notebook computer, or the like.
The portable information device 2 can be operated by fingers or the like, and its overall size is such that it can be carried in a state of being held by a hand or in a state of being 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 mobile information device 2 is shown.

In the present embodiment, as shown in FIG. 1A, the portable information device 2 is formed into a rectangular thin plate-like body that is long vertically in a plan view. In addition, a display unit that displays various screens on the surface (not shown) of the mobile information device 2 is provided, and various operation units such as a start-up unit, a charging connection unit, a volume control unit, and an input / output terminal are provided on the side end surface thereof. A camera or the like is provided on the back surface 2b so as to be exposed.
Here, the plan view means a state in which the mobile information device 2 is viewed from the display unit side thereof, 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. Further, the vertical and horizontal directions are determined based on the orientation of the mobile information device 2 when the mobile information device 2 is gripped and operated by hand, and the vertical directions on the drawing of FIG. It is the upper side and the lower side of the information device 2, and the left and right directions are the right side and the left side of the mobile information device 2, respectively.

In the present embodiment, the main body portion 10 is attached to a plate-shaped portion 11 which is a thin plate-shaped body having a rectangular shape in a plan view arranged so as to cover the back surface 2b of the portable information device 2, and an outer peripheral end portion of the plate-shaped portion 11. The configuration is provided with frame portions 12, 12, 12, 12 for holding the outer peripheral end portions of the provided portable information device 2.
Further, the plate-shaped portion 11 is configured to cover substantially the entire back surface 2b of the portable information device 2. The plate-shaped portion 11 may be configured to cover only a part of the back surface 2b.

In the present embodiment, frame portions 12, 12, 12, and 12 are provided at the four peripheral end portions of the plate-shaped portion 11 so as to stand up along the outer peripheral end surface of the portable information device 2. Further, the height dimension of the frame bodies 12, 12, 12, 12 is substantially the same as the plate thickness dimension of the portable information device 2.
As a result, the main body portion 10 has a box-shaped body having an opening, with the plate-shaped portion 11 as the bottom portion and the frame bodies 12, 12, 12, and 12 provided at the four peripheral ends of the bottom portion. With such a configuration, the entire portable information device 2 is housed in the box-shaped body through the opening, and the surface thereof (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-shaped 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 (located on the left side) is omitted, and an intermediate portion of the frame body 12 (located on the lower side) is omitted, and the mobile information device 2 is removed from each of these missing portions. Various operation parts such as a volume control part and a charging connection part provided on the side end surface of the above are exposed.
The frame body 12 is not limited to the one provided at all the four peripheral ends of the plate-shaped body 11, and may be provided at a part of the four peripheral ends. Alternatively, the portable information device 2 may be held by all or a part of the four corners of the plate-shaped body 11.

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

In the present embodiment, as shown in FIG. 1 (b), the electromagnetic wave reducing sheet 13 and the cloth-like body 15 are each composed of a single layer, and the cloth-like body 15 is formed of the electromagnetic wave reducing sheet 13 via the adhesive layer 14. It is fixed to the opposite surface of the portable information device 2 of. As a result, the main body 10 (plate-shaped body 11) has a three-layer structure as a whole. In addition, each layer of the electromagnetic wave reduction sheet 13 and the cloth-like body 15 may be made into a plurality of layers respectively.
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, but the adhesive layer 14 is not particularly limited and has various configurations. 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 reduction sheet 13, a sheet having high conductivity can be used, and for example, a carbon fiber sheet, a graphite sheet, a gliffite, or the like may be used.
Such a high conductivity sheet has an action of attenuating various electromagnetic wave energies. For example, the action of reducing the electromagnetic wave energy at the interface between the sheet and air during the stage while the electromagnetic wave passes through the sheet, and the action of reducing the electromagnetic wave energy by the overcurrent generated in the process of the electromagnetic wave passing through the sheet. And so on. By these actions, the influence of the electromagnetic wave radiated by the portable information device 2 can be reduced, and the danger to the human body and the influence on the precision device can be reduced.

In the present embodiment, the electromagnetic wave reduction sheet 13 is made of a flexible graphite sheet.
As the flexible graphite sheet, a sheet formed by expanding graphite into a form of expanded graphite and then applying pressure to form a sheet may be used. The thickness dimension of the flexible graphite sheet may be 0.05 mm to 3.00 mm. Desirably, one having a thickness dimension of 0.13 mm is used.
Since the electromagnetic wave reduction sheet 13 radiates far infrared rays, the action of far infrared rays on the hand or the like holding the portable information device 2 brings about a health-promoting effect. In addition, since it is porous and has humidity control properties, it has an effect of absorbing sweat and sebum generated by hands and the like and a deodorizing effect.

Further, when the flexible graphite sheet is used, the specific gravity of the expanded graphite is 1.3, which is a relatively low value, so that the weight of the main body 10 can be reduced. Further, 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 transfer of heat to the gripping hand or the like is suppressed, so that the risk of burns or the like is reduced.
The electromagnetic wave reduction sheet 13 is not limited to the above, and for example, a carbon woven material obtained by carbonizing acrylic fibers or pitches at a high temperature to form a sheet of carbon fibers may be used. Further, the electromagnetic wave reduction sheet 13 preferably has a carbon material composition ratio of 95% or more, but is not limited to this.

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

As shown in FIG. 2, the spherical fine particle activated carbon 100 has a substantially spherical shape. As a result, even if the spherical fine particle activated carbon 100 leaks from the cloth sheets 15a and 15a, there is almost no possibility 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 pores 101 that open on 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 diameter dimension of the micro hole 103 is smaller than that of the macro hole 102. By providing a plurality of pores 101 having such a structure, 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, one having a carbon purity of 90% or more may be used, and preferably 99.9% or more is used. Further, those having a sphere diameter of 150 μm to 600 μm may be used, and those having a sphere diameter of 180 μm to 500 μm are preferably used. Further, those having a pore volume of 0.9 cm3 / g to 2.0 cm3 / 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 the pores of all the macropores 102 and the micropores 103 formed in the spherical fine particle activated carbon 12, and the pore peak diameter is the pore portion 101. It refers to the largest opening diameter on the surface of the fine particle activated carbon 100.
Further, in the present embodiment, the spherical fine particle activated carbon 100 is composed of carbonized phenol resin, and its specific surface area is 3,300 m2 / 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 forming the macro holes 102 and the micro holes 103 of all the pores 101.

The spherical fine particle activated carbon 1 may be produced, for example, as follows.
Phenol resin, which is a raw material, is crushed and crushed pieces are processed to obtain a plurality of spheres. After carbonizing this sphere at a high temperature (for example, about 700 to 800 ° C.), the processed product is reacted with steam at a high temperature (for example, about 900 to 1000 ° C.) (steam activation). A porous structure is formed by this steam activation. Then, purification is performed to remove impurities and sieving to obtain 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. Further, the raw material of the spherical fine particle activated carbon 12 is not limited to the phenol resin, and may be coconut shell charcoal, lime, or the like.
As the spherical fine particle activated carbon 100, one that does not crack and shatter even when a strong pressure or impact is applied and that the pigment or the like does not adhere to the skin or the like may be used. By using such spherical fine particle activated carbon 100, the cloth-like body 15 can be used more preferably in contact with or in close contact with the skin.
Further, as the spherical fine particle activated carbon 100, for example, B's Wiper (registered trademark) and those manufactured by the production methods disclosed in Japanese Patent No. 4266711 and Japanese Patent No. 4308740 can be preferably used. ..

In the present embodiment, as shown in FIG. 1B, the spherical fine particle activated carbon 100 is fixed to the cloth-like body 15 by the resinous solution 15b.
As such a resinous solution 15b, an ionomer resin solution may be used, and the spherical fine particle activated charcoal 100 in a state of being immersed in the ionomer resin solution is sandwiched between two cloth sheets 15a and 15a to form a cloth-like body 15. It may be fixed to. Specifically, the above solution in which the spherical fine particle activated carbon 100 is immersed is applied to one surface of one cloth sheet 15a, and the other cloth sheet 15a is attached thereto. After that, it may be cured at 40 degrees, and the spherical fine particle activated carbon 100 may be sandwiched between the two cloth sheets 15a and 15a and fixed between the two cloth sheets 15a and 15a to form the cloth-like body 15. .. 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 resin 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 cracks (crevices) become gas flow paths and are contained in the cloth sheet 15a. The surface of the spherical fine particle activated carbon 100 can come into contact with the outside air through the interfiber voids. As a result, effects such as deodorization of the spherical fine particle activated carbon 100 are exhibited.
Further, by using the resinous solution 15b in this way, the spherical fine particle activated carbon 100 can be firmly fixed to the cloth-like body 15.

Further, in the present embodiment, as shown in FIG. 2, at least one of the antibacterial agent, the deodorant, and the fragrance which is the functional substance 104 is stored in the spherical fine particle activated carbon 100.
As shown in FIG. 2, these functional substances 104 are stored in the pores 101 of the spherical fine particle activated carbon 100. In the illustrated example, the functional substance 104 is stored in the macro hole 102 of the hole 101, but it 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, or a metal having an antibacterial action or a metal ion supported on an inorganic carrier may be used. As such an inorganic antibacterial agent 104, for example, a powdery silver-based inorganic antibacterial agent (for example, Novalon (registered trademark)) may be used. The inorganic antibacterial agent 104 may be dissolved or dispersed in a solution so as to impregnate the inside of the pore 101 of the spherical fine particle activated carbon 100. As a result, the cloth-like body 15 containing the spherical fine particle activated carbon 100 can be made to have an antibacterial effect such that germs are difficult to propagate, and deterioration of the cloth-like body 15 can be prevented.
When sweat, sebum, etc. of the skin are absorbed into the cloth-like body 15, they are decomposed by various germs existing on the skin surface in contact with the cloth-like body 15, and a so-called decomposed odor is generated. If the antibacterial agent 104 as described above is contained in the spherical fine particle activated carbon 100, germs are killed by this, so that decomposition of sweat and sebum by germs is suppressed, and the generation of foul odor is suppressed.

As the deodorant 104, one having an action of oxidizing an odorous component with active oxygen to change it into another substance and decomposing the odorous component may be used. As such a deodorant 104, there is DEORASE (registered trademark). This DEORASE (registered trademark) does not show a decrease in deodorizing effect due to desorption of the central metal under alkaline conditions, and causes a cycle reaction similar to an enzyme in a living body. Therefore, deodorizing using another chemical reaction is performed. Compared to the agent, the deodorant effect lasts much longer. Further, it is generally known that the reactivity of the cycle reaction is lowered by the moisture due to moisture absorption, but in DEORASE (registered trademark), it is known that the reactivity is improved by moisture absorption.
As the deodorant 104, for example, an artificial enzyme such as iron-based phthalocyanine may be used.
As described above, the sweat and sebum of the skin sucked into the cloth-like body 15 are decomposed by various germs existing on the skin in contact with each other, so that a bad odor, which is a so-called decomposed 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 be decomposed by various germs and the generation of bad odor is suppressed.
The fragrance 104 may be a substance containing various odorous components such as citrus fruits, or an aroma oil or the like may be used. Further, it may be made of a natural material or artificially synthesized.

When the functional substance 104 such as the antibacterial agent, deodorant, and fragrance as described above is contained 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 ultraporous, these functional substances 104 can be easily contained in the pores 101 of the spherical fine particle activated carbon 100 by this method. The functional substance 104 may be contained in other parts of the cloth-like body 15, for example, in the cloth sheet 15a.

The plate thickness dimension of the main body portion 10 (plate-shaped portion 11) is not limited, but may be, for example, about 1.0 mm to 1.0 cm. The thickness dimensions of the electromagnetic wave reduction sheet 13, the cloth-like body 15, and the adhesive layer 14 constituting the plate-shaped portion 11 are not limited, but are 0.1 mm to 7.0 mm and 0.1 mm to 7, respectively. It may be about 0.0 mm, 0.01 mm to 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 reduction of electromagnetic waves, and the like.
The thickness of the frame body 12 may be an appropriate size depending on the intended use, and the plate thickness of the frame body 12 may be substantially the same as that of the plate-shaped portion 11.

In the present embodiment described above, the main body 10 of the electromagnetic wave reduction cover 1 is a box-shaped body including a plate-shaped portion 11 and frame portions 12, 12, 12, 12 provided at the outer peripheral end portions thereof. , An example of a case for storing the portable information device 2 is shown, but the present invention is not limited to this mode.
The main body portion 10 may be configured with only the plate-shaped portion 11 without providing the frame portion 12.
The main body 10 having such a configuration may be, for example, a member constituting a storage case of the mobile information device 2, or may be a configuration that can be replaced as a consumable item. Further, the main body 10 may be attached to the back surface 2b of the portable information device 2 as an attachment sticker, or may be detachably attached to the back surface 2b.

Further, in order to prevent the dye of the electromagnetic wave reduction sheet 13 constituting the main body 10 from adhering to the back surface 2b of the mobile information device 2 when the electromagnetic wave reduction cover 1 is attached to the mobile information device 2, the electromagnetic wave reduction sheet A sheet body or the like may be attached to the surface of the 13 portable information device 2 side.
As the sheet body, for example, paper, a cloth woven material used for natural cloth, or the like may be used. Further, a sheet body made of a soft material that is not easily damaged may be used. By using such a sheet body, not only the color transfer of the electromagnetic wave reduction sheet 13 is prevented, but also the main body portion 10 is reinforced and the main body portion 10 is suppressed 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-mentioned configuration, in addition to the electromagnetic wave reduction effect of the mobile information device 2, a health promotion effect due to a remarkable far-infrared ray action, and an effect of absorbing sweat and sebum of hands and the like. It has a deodorizing effect.
That is, the main body 10 provided in the electromagnetic wave reduction cover 1 includes an electromagnetic wave reduction sheet 13 containing carbon, and a cloth-like body 15 forming an outermost layer attached to the surface opposite to the portable information device 2. To form a layered structure. Further, the cloth-like body 15 stores a large number of ultraporous spherical fine particle activated carbons 100 having a particle size of 150 μm to 600 μm.
Therefore, sweat, sebum, odor molecules, etc. of hands and the like are easily adsorbed in the pores 101 of the spherical fine particle activated carbon 100, and a remarkable effect of absorbing sweat and sebum and a deodorizing effect of body odor can be exhibited.
Further, 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 a health promotion 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 should be stored in the pores 101. Can be done.

Further, in the present embodiment, since the spherical fine particle activated carbon 100 is composed of carbonized phenol resin, it has a more remarkable far-infrared radiation action as compared with other general activated carbons. Further, it is easy to form a large number of pores 101 composed of macropores 102 and micropores 103 having the above structure in the spherical fine particle activated carbon 100.
Further, the specific surface area of the spherical fine particle activated carbon 101 is set to 3,300 m2 / g. This is a very large area corresponding to about 2200 tatami mats, and skin sweat, sebum, odor molecules, etc. are easily adsorbed in the pore 101 of the spherical fine particle activated carbon 100, and even more remarkable sweat and sebum. It has the effect of absorbing sweat and the effect of deodorizing body odor.
Further, in the present embodiment, at least one of the antibacterial agent, the deodorant, and the functional substance 104 of the fragrance is stored in the pore 101 of the spherical fine particle activated carbon 100. Therefore, in addition to the above-mentioned deodorizing effect and the like, various functions according to the stored functional substance 104 can be imparted to the spherical fine particle activated carbon 100.

Further, since the electromagnetic wave reducing sheet 13 containing carbon contained in the main body 15 is a sheet having high conductivity and has an action of reducing electromagnetic wave energy, the influence of electromagnetic waves radiated by the portable information device 2 can be reduced. ..
Further, since the electromagnetic wave reduction sheet 13 radiates far infrared rays, blood flow in the hands and the like is promoted, and a health promoting effect can be obtained.
Further, since the electromagnetic wave reduction sheet 13 is made of a soft material and is not easily damaged, it is not easily damaged even when a strong impact is applied.
Further, since the cloth-like body 15 is arranged on the electromagnetic wave reduction sheet 13, when the portable information device 2 equipped with the electromagnetic wave reduction cover 1 is gripped by a hand or the like, the dye of the electromagnetic wave reduction sheet 13 is formed. It is prevented from being transferred to the hand.

The embodiment in which the spherical fine particle activated carbon 100 is contained in the cloth-like body 15 is limited to the embodiment in which the spherical fine particle activated carbon 100 is fixed to the cloth-like body 15 using the resin solution 15b as described above. Absent. A bag-shaped portion may be provided inside the cloth-shaped body 15, and the spherical fine particle activated carbon 100 may be stored in the bag-shaped portion.
The bag-shaped portion may be any as long as it has a storage space for spherical fine particle activated carbon 100 inside. For example, natural fibers such as cotton and silk and chemical fibers such as nylon and rayon are used as raw materials. It may be made of a cloth-like material.
After the spherical fine particle activated carbon 100 is stored inside the bag-shaped portion, the edge of the bag-shaped portion is fixed with an adhesive or sutured with a thread or the like so that the spherical fine particle activated carbon 100 does not leak from the inside. It may be. Further, the bag-shaped portion itself may be fixed to the cloth-shaped body 15 or sewn. Further, as the bag-shaped portion, one provided in advance on the ready-made cloth-like body 15 may be used, or may be newly formed. Further, the spherical fine particle activated carbon 100 may be fixed in the bag-shaped portion by using the resin solution 15b.

In this way, when the spherical fine particle activated carbon 100 is stored in the bag-shaped portion provided in the cloth-like body 15, the spherical fine particle activated carbon 100 is fixed in the cloth-like body 15 by using the resin solution 15a. As compared with the above, the spherical fine particle activated carbon 100 can be easily and inexpensively fixed to the cloth-like body 15. Further, when the bag-shaped portion is provided in advance on the cloth-shaped body 15 as an off-the-shelf product, the spherical fine particle activated carbon 100 can be stored therein, so that a new bag-shaped portion can be formed. Eliminate the hassle.

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 1A according to the second embodiment has an opening that covers the mobile information device 2 so as to include the entire mobile information device 2 in addition to the main body 10. A box-shaped body 20 having a portion 21 is further provided.

The box-shaped body 20 is composed of five rectangular thin plate-shaped face portions, which are composed of a bottom surface portion 26 and side surface portions 22, 23, 24, 25 provided so as to rise from the four peripheral ends of the bottom portion 26. ..
As shown in FIG. 3B, the box-shaped body 20 is covered with the portable information device 2 so as to include the entire portable information device 2 inside the box-shaped body 20 through the opening 21. It is composed. In the illustrated example, in a state where the mobile information device 2 to which the main body 10 is mounted is placed on a mounting surface 3 such as a desk, the box-shaped body 20 is covered with the mobile information device 2 so as to cover the whole. It shows the state of being placed on the mounting surface 3. In this state, a gap is formed between the portable information device 2 and the surface portions 22, 23, 24, 25, 26 of the box-shaped body 20.

As shown in FIG. 3B, each of the surface portions 22, 23, 24, 25, 26 constituting the box-shaped body 20 has a second cloth-shaped body 29 arranged in the outermost layer, and the second cloth-shaped body 29 is arranged. A layer structure is formed in which a second electromagnetic wave reducing sheet 27 containing carbon is arranged in the inner layer of the above. The second cloth-like body 29 stores a large number of ultraporous 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 the cloth-like body 15 according to the first embodiment, and as shown in FIG. 3B, a plurality of spherical fine particles are formed between the two cloth sheets 29a and 29a. It is configured to sandwich the activated carbon 100. Further, the spherical fine particle activated carbon 100 is fixed to the second cloth-like body 29 by the 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 via the adhesive layer 28. As the adhesive layer 28, one having the same structure as the adhesive layer 14 described above may be used.

In the present embodiment, the electromagnetic wave reduction cover 1A is further provided with a box-shaped body 20 having an opening 21 that covers the mobile information device 2 so as to include the entire mobile information device 2 in addition to the main body 10. The surface portions 22, 23, 24, 25, 26 constituting the box-shaped body 20 are arranged on the outermost layer of the second cloth-shaped body 29, and the inner layer of the second cloth-shaped body 29 is formed. It has a layered structure in which a second electromagnetic wave reduction sheet 27 containing carbon is arranged.
Therefore, when the mobile information device 2 is used while being placed on a desk or the like, or when it is temporarily placed on a desk or the like because it is not used, the mobile information device 20 is covered with the box-shaped body 20 and carried. If the entire information device 2 is completely covered, the electromagnetic waves radiated by the portable information device 2 can be effectively reduced. Further, the box-shaped body 20 can be preferably used in a 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 1B according to the third embodiment of the present invention will be described.
As shown in FIG. 4, the electromagnetic wave reduction cover 1B according to the third embodiment has a surface on the display unit side of the mobile information device 2 in addition to the main body 10 arranged so as to cover the back surface 2b of the mobile information device 2. A display unit cover 17 that can be opened and closed so as to cover the (surface) 2a is further provided.
A connecting portion 16 is provided at the end of the main body portion 10, and the display portion 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 connecting portion 16 may be provided on substantially the entire one side end portion of the main body portion 10, or may be provided only on the central portion of the one side end portion or only on both end sides.

The display unit cover 17 has a rectangular thin plate shape that covers substantially the entire surface 2a of the mobile information device 2, is movable around the connecting portion 16 as a support axis, and is covered or covered with the surface 2a of the mobile information device 2. It is configured so that it can move away from it, that is, it can be opened and closed. Note that 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 mobile information device 2 is exposed, that is, an open state.

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

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 reduction sheet 13 containing carbon is arranged on the inner layer of the cloth-like body 15 in the same manner as the box-shaped body 20 described above. It may be constructed in a structure.
If the display unit cover 17 has such a configuration, the above-mentioned electromagnetic wave reduction effect and sweat absorption effect can be more effectively exhibited.
Further, in the illustrated example, a mode in which the frame portions 12, 12, 12, 12 are provided at the four peripheral ends of the main body portion 10 is shown, but the present invention is not limited to this, and the frame is provided only on the four corner portions of the main body portion 10. Various configurations may be made, such as providing the portion 12.

In the present embodiment, the electromagnetic wave reduction cover 1B is connected to the connecting portion 16 provided at the end of the main body portion 10 and the connecting portion 16, and is openable and closable so as to cover the surface 2a of the mobile information device 2. It is further provided with a part cover 17.
Therefore, the display unit cover 17 can be moved with the connecting portion 16 as a support axis to perform an opening / closing operation such as covering the surface 2a of the mobile information device 2 or separating it from the surface 2a. Therefore, the electromagnetic wave reduction cover 1B is a so-called notebook type. It can be applied as a storage case for the portable information device 2 of the above.

Next, the electromagnetic wave reduction cover 1C 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 mobile information device 2, and is arranged so as to cover at least the back surface 2b of the mobile information device 2. It has a part 30.

In the present embodiment, the main body portion 30 is attached to a plate-shaped portion 31 which is a thin plate-shaped body having a rectangular shape in a plan view arranged so as to cover the back surface 2b of the portable information device 2, and an outer peripheral end portion of the plate-shaped portion 31. The configuration is provided with frame portions 12, 12, 12, 12 for holding the outer peripheral end portions of the provided portable information device 2.
Further, the plate-shaped portion 31 is configured to cover substantially the entire back surface 2b of the portable information device 2. The plate-shaped portion 31 may be configured to cover only a part of the back surface 2b.

In the present embodiment, frame portions 12, 12, 12, 12 are provided at the four peripheral end portions of the plate-shaped portion 31 so as to stand up along the outer peripheral end surface of the portable information device 2. Further, the height dimension of the frame bodies 12, 12, 12, 12 is substantially the same as the plate thickness dimension of the portable information device 2.
As a result, the main body portion 30 has a box-shaped body having an opening, with the plate-shaped portion 31 as the bottom portion and the frame bodies 12, 12, 12, and 12 provided at the four peripheral ends of the bottom portion. With such a configuration, the entire portable information device 2 is housed in the box-shaped body through the opening, and the surface thereof (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-shaped body 31 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 (located on the left side) is omitted, and an intermediate portion of the frame body 12 (located on the lower side) is omitted, and the mobile information device 2 is removed from each of these missing portions. Various operation parts such as a volume control part and a charging connection part provided on the side end surface of the above are exposed.
The frame body 12 is not limited to the one provided at all the four peripheral ends of the plate-shaped body 31, and may be provided at a part of the four peripheral ends. Alternatively, it may be provided in all or a part of the four corners of the plate-shaped body 31 to hold the portable information device 2 by these.

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

In the present embodiment, as shown in FIG. 5B, the electromagnetic wave reduction sheet 13 and the activated carbon fiber sheet 32 are each composed of a single layer, and the activated carbon fiber sheet 32 is connected to the electromagnetic wave reduction sheet 13 via the adhesive layer 14. It is fixed to the opposite surface of the portable information device 2 of the above. As a result, the main body 30 (plate-shaped body 31) has a three-layer structure as a whole. Each layer of the electromagnetic wave reduction 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, but the adhesive layer 14 is not particularly limited and has various configurations. 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 reduction sheet 13, a sheet having high conductivity can be used, and for example, a carbon fiber sheet, a graphite sheet, a gliffite, or the like may be used.
Such a high conductivity sheet has an action of attenuating various electromagnetic wave energies. For example, the action of reducing the electromagnetic wave energy at the interface between the sheet and air during the stage while the electromagnetic wave passes through the sheet, and the action of reducing the electromagnetic wave energy by the overcurrent generated in the process of the electromagnetic wave passing through the sheet. And so on. By these actions, the influence of the electromagnetic wave radiated by the portable information device 2 can be reduced, and the danger to the human body and the influence on the precision device can be reduced.

In the present embodiment, the electromagnetic wave reduction sheet 13 is made of a flexible graphite sheet.
As the flexible graphite sheet, a sheet formed by expanding graphite into a form of expanded graphite and then applying pressure to form a sheet may be used. The thickness dimension of the flexible graphite sheet may be 0.05 mm to 3.00 mm. Desirably, one having a thickness dimension of 0.13 mm is used.
Since the electromagnetic wave reduction sheet 13 radiates far infrared rays, the action of far infrared rays on the hand or the like holding the portable information device 2 brings about a health-promoting effect. In addition, since it is porous and has humidity control properties, it has an effect of absorbing sweat and sebum generated by hands and the like and a deodorizing effect.

Further, when the flexible graphite sheet is used, the specific gravity of the expanded graphite is 1.3, which is a relatively low value, so that the weight of the main body 30 can be reduced. Further, 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 transfer of heat to the gripping hand or the like is suppressed, so that the risk of burns or the like is reduced.
The electromagnetic wave reduction sheet 13 is not limited to the above, and for example, a carbon woven material obtained by carbonizing acrylic fibers or pitches at a high temperature to form a sheet of carbon fibers may be used. Further, the electromagnetic wave reduction sheet 13 preferably has a carbon material composition ratio of 95% or more, but 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 made of a cloth woven material having activated carbon fibers.
In the present embodiment, as shown in FIG. 6, the activated carbon fiber sheet 32 is formed by sewing a plurality of strip-shaped activated carbon fiber materials 32a and 32a with sewing threads 32b and 32b.
The production of such an activated carbon fiber sheet 32 may be carried out by the method shown below. That is, first, a phenol resin is added to the activated carbon fibers to form fibers, and then carbonized to form strips (so-called warp threads) 32a and 32a of a plurality of activated carbon fibers. Next, the plurality of warp threads 32a and 32a are arranged in parallel, and sewing threads (so-called weft threads) 32b and 32b such as silk are woven into them to create various patterns and patterns to manufacture the activated carbon fiber sheet 32. You may do so. For example, the warp threads 32a and 32a may be formed to have a length of 30 cm to 60 cm, and the weft threads 32b and 32b having a length of 1 m to 20 m may be woven into the warp threads 32a and 32a to form the activated carbon fiber sheet 32.
Further, since the activated carbon fiber sheet 32 is a layer that comes into 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.
The so-called Nishijin weaving technique can be used in the production of the activated carbon fiber sheet 32 as described above.

If the activated carbon fiber sheet 32 is configured by sewing a plurality of strip-shaped activated carbon fiber materials 32a and 32a with sewing threads 32b and 32b in this way, various patterns and patterns can be designed on the surface of the activated carbon fiber sheet 32. Can be applied. Since the activated carbon fiber sheet 32 is the outermost layer of the electromagnetic wave reduction cover 1 exposed to the outside, 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 by using the technique of Nishijin-ori, the pattern or pattern of Nishijin-ori can be exposed, so that the fashionability of the electromagnetic wave reduction cover 1C can be further enhanced.

Since the activated carbon fiber used in the activated carbon fiber sheet 32 radiates far infrared rays, a synergistic effect with the far infrared rays action of the electromagnetic wave reduction sheet 13 exerts a stronger far infrared rays effect on the hand holding the mobile information device 2. Can bring.
In addition, since the activated carbon fiber is porous and has a function of absorbing molecules, it has an effect of absorbing sweat and sebum of hands and the like and an effect of deodorizing.
Further, since the activated carbon fiber is an aggregate of granules, there is no risk of sticking to the skin and there is no adverse effect on the skin. In addition, the activated carbon fiber has excellent abrasion resistance and has an affinity with the human body, and is therefore suitable for use in the activated carbon fiber sheet 32 that comes into contact with the hand or the like. Further, since the specific gravity of the activated carbon fiber is 1.27, which is a relatively low value, the weight of the electromagnetic wave reduction cover 1C can be reduced by using it as the activated carbon fiber sheet 32. Further, since the activated carbon fiber sheet 15 as the outermost layer is arranged on the electromagnetic wave reduction sheet 13, color transfer in which the dye of the electromagnetic wave reduction sheet 13 adheres to the hand or the like is prevented.
As the cloth woven fabric material having activated carbon fibers used for the activated carbon fiber sheet 32, it is desirable to use a material having a carbon material composition ratio of 95% or more, but the material is not limited thereto. Further, as the electromagnetic wave reduction 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 dimensions may be used.

The main body 30 of the electromagnetic wave reduction cover 1C may contain the above-mentioned inorganic antibacterial agent or deodorant.
The portion to which these inorganic antibacterial agents and deodorants are contained is not limited, and the portion may be contained in any portion in each layer constituting the main body portion 30, but preferably, the activated carbon fiber sheet 32 is contained. Include in. Since the activated carbon fiber sheet 32 is porous, an antibacterial agent can be suitably contained in the pores. Further, the inorganic antibacterial agent may be contained in the main body 30 without being dissolved or dispersed in the solution.

The plate thickness dimension of the main body portion 30 (plate-shaped portion 31) is not limited, but may be, for example, about 1.0 mm to 1.0 cm. The thickness dimensions of the electromagnetic wave reduction sheet 13, the activated carbon fiber sheet 32, and the adhesive layer 14 constituting the plate-shaped portion 31 are not limited, but are 0.1 mm to 7.0 mm and 0.1 mm to 7, respectively. It may be about 0.0 mm, 0.01 mm to 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 reduction of electromagnetic waves, and the like.
The thickness of the frame body 12 may be an appropriate size depending on the intended use, and the plate thickness of the frame body 12 may be substantially the same as that of the plate-shaped portion 31.

In the present embodiment described above, the main body 30 of the electromagnetic wave reduction cover 1C is a box-shaped body including a plate-shaped portion 31 and frame portions 12, 12, 12, 12 provided at the outer peripheral end portions thereof. , An example of a case for storing the portable information device 2 is shown, but the present invention is not limited to this mode.
The main body portion 30 may be configured with only the plate-shaped portion 31 without providing the frame portion 12.
The main body 30 having such a configuration may be, for example, a member constituting the storage case of the mobile information device 2, or may be a configuration that can be replaced as a consumable item. Further, the main body 30 may be attached to the back surface 2b of the mobile information device 2 as an attachment sticker, or may be detachably attached to the back surface 2b.

Further, in order to prevent the dye of the electromagnetic wave reduction sheet 13 constituting the main body 30 from adhering to the back surface 2b of the mobile information device 2 when the electromagnetic wave reduction cover 1C is attached to the mobile information device 2, the electromagnetic wave reduction sheet A sheet body or the like may be attached to the surface of the 13 portable information device 2 side.
As the sheet body, for example, paper, a cloth woven material used for natural cloth, or the like may be used. Further, a sheet body made of a soft material that is not easily damaged may be used. By using such a sheet body, not only the color transfer of the electromagnetic wave reduction sheet 13 is prevented, but also the main body portion 30 is reinforced and the main body portion 30 is suppressed 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 1C according to the present embodiment has the above-mentioned configuration, in addition to the electromagnetic wave reduction effect of the mobile information device 2, the health promotion effect due to the remarkable far-infrared ray action, and the absorption effect of sweat and sebum of hands and the like. It has a deodorizing effect.
That is, the main body 30 included in the electromagnetic wave reduction cover 1C is composed of a carbon-containing electromagnetic wave reduction sheet 13 and an activated carbon fiber sheet 32 as an outermost layer attached to the surface opposite to the portable information device 2. It forms a layered structure. Since both the electromagnetic wave reducing sheet 13 and the activated carbon fiber sheet 32 have a function of absorbing molecules, they have an effect of absorbing sweat and sebum of hands and the like and a deodorizing effect.
Further, since the electromagnetic wave reducing sheet 13 containing carbon contained in the main body 30 is a sheet having high conductivity and has an action of reducing electromagnetic wave energy, the influence of electromagnetic waves radiated by the portable information device 2 can be reduced. ..

Further, the electromagnetic wave reduction sheet 13 and the activated carbon fiber sheet 32 both emit far infrared rays, and these are provided as a layer having a certain thickness over substantially the entire main body portion 30. Therefore, for example, as compared with the case where a plurality of fibrous substances that emit far infrared rays are partially provided in the main body portion 30, a larger amount of far infrared rays is emitted, so that the main body portion 30 comes into contact with each other. The promotion of blood flow in the hands and the like is further promoted, and a greater health-promoting effect can be obtained.
Further, since the electromagnetic wave reduction sheet 13 and the activated carbon fiber sheet 32 are made of a soft material and are not easily damaged, the electromagnetic wave reduction cover 1C is not easily damaged even when a strong impact is applied.
Further, 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 a hand or the like, the dye of the electromagnetic wave reduction sheet 13 is formed. It is prevented from being transferred to hands.

Next, the 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 1D according to the fifth embodiment has an opening that covers the mobile information device 2 so as to include the entire mobile information device 2 in addition to the main body 30. A box-shaped body 40 having a portion 41 is further provided.

The box-shaped body 40 is composed of five rectangular thin plate-shaped surface portions, which are composed of 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-shaped body 40 is covered with the portable information device 2 so as to include the entire portable information device 2 inside the box-shaped body 40 through the opening 41. It is composed. In the illustrated example, in a state where the mobile information device 2 to which the main body 30 is mounted is placed on a mounting surface 3 such as a desk, the box-shaped body 40 is covered with the mobile information device 2 so as to cover the whole. It shows the state of being placed on the mounting surface 3. In this state, a gap is formed between the portable information device 2 and the surface portions 42, 43, 44, 45, 46 of the box-shaped body 40.

As shown in FIG. 7B, each of the surface portions 42, 43, 44, 45, 46 constituting the box-shaped body 40 has a second activated carbon fiber sheet 49 arranged on the outermost layer, and the second activated carbon fiber sheet 49. A layer structure is formed in which a second electromagnetic wave reducing sheet 27 containing carbon is arranged in the inner layer of the above.
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 via the adhesive layer 28. As the adhesive layer 28, one having the same structure as the adhesive layer 14 described above may be used.

In the present embodiment, the electromagnetic wave reduction cover 1D is further provided with a box-shaped body 40 having an opening 41 that covers the mobile information device 2 so as to include the entire mobile information device 2 in addition to the main body 30. The second activated carbon fiber sheet 49 is arranged on the outermost layer of each of the surface portions 42, 43, 44, 45, 46 constituting the box-shaped body 40, and the inner layer of the second activated carbon fiber sheet 49 is formed. It has a layered structure in which a second electromagnetic wave reduction sheet 27 containing carbon is arranged.
Therefore, when the mobile information device 2 is used in a state where it is placed on a desk or the like, or when it is temporarily placed on a desk or the like because it is not used, the mobile information device 40 is covered with a box-shaped body 40 and carried. If the entire information device 2 is completely covered, the electromagnetic waves radiated by the portable information device 2 can be effectively reduced. Further, the box-shaped body 40 can be preferably used in a 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 1E according to the sixth embodiment has a surface on the display unit side of the mobile information device 2 in addition to the main body 30 arranged so as to cover the back surface 2b of the mobile information device 2. A display unit cover 17 that can be opened and closed so as to cover the (surface) 2a is further provided.
A connecting portion 16 is provided at the end of the main body portion 30, and the display portion cover 17 is connected to the connecting portion 16.

The configuration of the frame portion 12, the connecting portion 16, and the display portion cover 17 is the same as that of the third embodiment described above. Further, as in the third embodiment, the display unit cover 17 has an activated carbon fiber sheet 32 arranged in the outermost layer in the same manner as the box-shaped body 40 described above, and the inner layer of the activated carbon fiber sheet 32 contains carbon. It may be configured in a layer structure in which the electromagnetic wave reduction sheet 13 is arranged. Further, the effect of the electromagnetic wave reduction cover 1E according to the present embodiment is the same as that of the third embodiment described above.

Next, the far-infrared ray action of the various carbon materials described above will be described.
The human body is composed of 60% water and 25% or more carbon, and constantly emits 10 microns of far infrared rays at an average body temperature of 36.5 ° C, so an electromagnetic wave reduction cover with carbon material When the portable information device 2 to which 1 to 1E is attached is grasped by a hand or the like, the hand or the like absorbs the far infrared rays radiated by the covers 1 to 1E and is heated. That is, the same wavelength is used between the carbon material (electromagnetic wave reduction sheet 13, cloth 15 containing spherical fine particle activated carbon 100, second electromagnetic wave reduction sheet 27, second cloth 29 containing spherical fine particle activated carbon 100) and the hand or the like. By radiating far infrared rays from each other, the carbon material maintains a temperature of about 36.5 ° C, while water particles collide violently in the hands, etc., and this vibration becomes kinetic energy and becomes heat. It is converted and the hands etc. are heated.
As a result, far infrared rays act on the subcutaneous tissue and blood vessels to improve blood flow, but according to the present inventor, it has been confirmed that there is a 15% increase effect on peripheral and central blood flow. .. In addition, these carbon materials generate alpha waves to heal the 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 13 Electromagnetic wave reduction sheet 15 Cloth-like body 16 Connecting part 17 Display part cover 20, 40 Box-shaped body 21,41 Openings 22-26, 42 ~ 46 Face 27 Second electromagnetic wave reduction sheet 29 Second cloth-like body 32 Activated carbon fiber sheet 49 Second activated carbon fiber sheet 2 Portable information device 2a Surface (face on the display side)
2b Back side 100 Spherical fine particle activated carbon

Claims (7)

An electromagnetic wave reduction cover that is attached to mobile information devices.
It has a main body portion arranged so as to cover at least the back surface of the mobile information device, and the main body portion is fixed to an electromagnetic wave reduction sheet containing carbon and the surface of the electromagnetic wave reduction sheet on the opposite side of the mobile information device. A layered structure is formed by the cloth-like body constituting the outermost layer, and the cloth-like body contains a large number of ultraporous spherical fine particle activated carbons having a particle size of 150 μm to 600 μm .
The electromagnetic wave reduction cover further includes a box-shaped body having an opening that covers the mobile information device so as to include the entire portable information device, and each surface portion constituting the box-shaped body is described as described above. A layer structure is formed in which a second cloth-like body containing spherical fine particle activated carbon is arranged in the outermost layer, and a second electromagnetic wave reduction sheet containing carbon is arranged in the inner layer of the second cloth-like body. Electromagnetic wave reduction cover featuring. In claim 1,
The spherical fine particle activated carbon is an electromagnetic wave reduction cover characterized by having a specific surface area of 3,300 m2 / g or more. Oite to any one of claims 1 or 2,
An electromagnetic wave reduction cover characterized in that at least one of an antibacterial agent, a deodorant, and an fragrance agent is stored in the spherical fine particle activated carbon. An electromagnetic wave reduction cover that is attached to mobile information devices.
It has a main body portion arranged so as to cover at least the back surface of the mobile information device, and the main body portion is fixed to an electromagnetic wave reduction sheet containing carbon and the surface of the electromagnetic wave reduction sheet on the opposite side of the mobile information device. A layered structure is formed by the activated carbon fiber sheet that constitutes the outermost layer.
An electromagnetic wave reduction cover characterized in that the electromagnetic wave reduction sheet is made of a flexible graphite sheet . Oite to claim 4,
The activated carbon fiber sheet is an electromagnetic wave reduction cover characterized in that a plurality of strip-shaped activated carbon fiber materials are sewn with sewing threads . In any one of claims 4 or 5,
The electromagnetic wave reduction cover further includes a box-shaped body having an opening that covers the portable information device so as to include the entire portable information device, and each surface portion constituting the box-shaped body is the most. An electromagnetic wave reduction cover characterized in that a second activated carbon fiber sheet is arranged on an outer layer, and a second electromagnetic wave reduction sheet containing carbon is arranged on an inner layer of the second activated carbon fiber sheet to form a layer structure . In any one of claims 4 or 5 ,
A connecting portion provided at an end portion of the main body portion and a display portion cover connected to the connecting portion and openable and closable so as to cover a surface of the portable information device on the display portion side are further provided. A featured electromagnetic wave reduction cover.

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