JP2005277586A - Electromagnetic shield cover for portable telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnetic shield cover for portable telephones that can exhibit sufficient electromagnetic shielding properties without sacrificing the visibility and operability of the portable telephones, and has a structure rich in universality. <P>SOLUTION: Thin-plate-shaped electromagnetic shielding plates 12, 13 made of a conductive material are built into a cover body 11 in the form of a flexible thin-plate body having shape dimensions corresponding to the portable telephone 2, and a prescribed location in the cover body 11 is set to be a positioning fixation 14 positioned and fixed to the portable telephone 2. While the positioning fixation 14 is being positioned and fixed at the portable telephone 2, the cover body 11 can be selectively overlapped to and can cover the front and rear of the portable telephone 2 with the positioning fixation 14 as a fixed support. When the cover body 11 is overlapped and covers the front of the portable telephone 2, the electromagnetic shielding plates 12, 13 are positioned at locations corresponding to the occurrence position of electromagnetic waves in the portable telephone 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electromagnetic wave shielding cover for a mobile phone, and more particularly to an electromagnetic wave shielding technique for preventing an electromagnetic wave generated from the mobile phone from affecting the human body during a call of the mobile phone.

  Mobile phones (including PHS) can always be worn and carried because of their small size and light weight, and because they can talk freely because of their simplicity, they can be used regardless of business or private use. It is often used regardless of age or sex, and the rapid spread rate in recent years is remarkable. In parallel with this, the influence of electromagnetic waves (microwaves) generated from mobile phones on human tissues has become a problem as an electromagnetic wave bioeffect.

  In other words, when using a mobile phone, especially during a call, the mobile phone is pressed against the user's ear, that is, in contact with the head, and electromagnetic waves are generated from the phone body and antenna. A large amount of electromagnetic waves are absorbed and absorbed by the human body, particularly the head cell tissue. For this reason, there is a high possibility of causing mental stress disorder, visual disorder, skin disorder, or brain tumor due to electromagnetic waves, and many research results from experts and experts around the world who report concerns about the effects on the human body are reported. Has been.

  In response to these reports, research and development on electromagnetic wave shielding technology to reduce or eliminate the influence of electromagnetic waves generated from mobile phones on the human body has been actively conducted recently. As a result, various shield technologies have already been proposed or put into practical use.

  As an example of this type of electromagnetic shielding technique, there is an electromagnetic shielding case as described in Patent Document 1 and Patent Document 2.

  Although neither shield case is specifically shown, the shield case of Patent Document 1 is made of an insulating member and has a pocket structure in which the mobile phone is housed, and includes a liquid crystal display unit and a button of the mobile phone. The front part which covers an operation part is formed with the flexible transparent sheet which has an electromagnetic wave prevention effect. The latter shield case of Patent Document 2 is formed of a flexible electromagnetic shielding material, and a liquid crystal display unit and an opening for a button operation unit can also be opened and closed by a cover on the front surface of a pocket for storing a mobile phone. And a reflector that covers the opening of the pocket is provided so as to be openable and closable.

  However, any of these shield cases has a pocket shape for storing a mobile phone and is configured to wrap almost the entire mobile phone. There are various types of mobile phones, for example, a liquid crystal display unit and The shape and dimensions of the integrated mobile phone in which the button operation unit is provided integrally with the phone body and the folding mobile phone in which these parts are provided separately on the phone main body and the lid are different. Therefore, it is necessary to design a dedicated shield case for each type of mobile phone, and such a structure that necessitates the production of a variety of products in small quantities has led to an increase in manufacturing cost and product cost.

  Each of the shield cases has a structure considering the operability of the mobile phone. In the shield case described in the former Patent Document 1, the liquid crystal display unit and the button operation unit can be visually observed and a transparent sheet is used. The button operation unit can be operated indirectly through the shield case, while in the latter case, the button operation unit can be operated directly through the opening. However, in any shield case, since it is structured to wrap almost the entire mobile phone, not only a comfortable operability can be expected, but also the possibility of an erroneous operation cannot be completely avoided.

Furthermore, all of the conventional shield covers and sheets of this type including both the above-mentioned shield covers are formed from thin plate-like members having electromagnetic wave shielding properties. These thin plate-like members are electrically conductive to the transparent sheet material. A material is kneaded or a conductive material is coated on the surface of a synthetic resin sheet or the like, and its electromagnetic shielding effect is weak, and further improvement has been demanded.
Japanese Patent Laid-Open No. 10-276817 Japanese Patent Laid-Open No. 10-99118

  The present invention has been made in view of such conventional problems, and the object of the present invention is during a call without impairing the visibility and operability of a liquid crystal display unit and a button operation unit of a mobile phone. An object of the present invention is to provide an electromagnetic wave shielding cover for a mobile phone that can exhibit a sufficient electromagnetic wave shielding property and has a versatile structure that can be commonly applied to various telephones.

  In order to achieve the above object, an electromagnetic wave shielding cover for a mobile phone according to the present invention covers a mobile phone and shields an electromagnetic wave generated from the mobile phone, and is a flexible thin plate having a shape and dimension corresponding to the mobile phone A thin plate-shaped electromagnetic wave shielding body made of an electromagnetic wave shielding material is incorporated inside the cover main body in the form of a body, and a predetermined portion of the cover main body is a positioning fixing portion that is positioned and fixed to the mobile phone. In the state where the positioning and fixing portion is positioned and fixed at a proper position on the surface of the mobile phone, the cover body can be selectively overlapped with the front or back surface of the mobile phone using the positioning and fixing portion as a fixed fulcrum. When at least the cover body is overlaid on the front surface of the mobile phone, the electromagnetic wave shielding body is Characterized by being configured to correspond located electromagnetic wave generation part of the telephone, in particular there is a configuration of the following second aspect.

  A first specific configuration is such that the electromagnetic wave shielding body is housed inside the cover body in the form of a long strip having a width corresponding to the width of the mobile phone, and the cover A predetermined position in the longitudinal direction of the main body is a positioning and fixing portion that is positioned and fixed to the mobile phone, and in the state that the positioning and fixing portion is positioned and fixed at an appropriate position on the surface of the mobile phone, the cover main body has the positioning and fixing portion. Is fixed to the front surface or the back surface of the mobile phone as a fixed fulcrum, and when the cover body is overlaid on the front surface of the mobile phone, the electromagnetic shielding member It is comprised so that it may correspond to an electromagnetic wave generation location.

  In a second specific configuration, the electromagnetic wave shielding body is incorporated inside the cover main body in the form of a rectangular thin plate having a length corresponding to the vertical length of the mobile phone, and the cover A predetermined position in the width direction of the main body is a positioning and fixing portion that is positioned and fixed to the mobile phone, and in the state that the positioning and fixing portion is positioned and fixed at an appropriate position on the surface of the mobile phone, the cover main body has the positioning fixing portion. Is fixed to the front surface or the back surface of the mobile phone as a fixed fulcrum, and when the cover body is overlaid on the front surface of the mobile phone, the electromagnetic shielding member It is comprised so that it may correspond to an electromagnetic wave generation location.

  As a preferred embodiment, the cover body has a length dimension that can cover and cover almost the entire front surface of the mobile phone, and the positioning fixing portion is provided at one end thereof. It is structured to be positioned and fixed at the upper back position of the mobile phone. Alternatively, the cover body has a length dimension that can cover and cover almost the entire front surface and the back surface of the mobile phone, and the positioning fixing portion is provided at an appropriate position in the longitudinal direction. The mobile phone is structured to be positioned and fixed at an appropriate position on the back surface of the mobile phone.

  Moreover, as the electromagnetic wave shielding material, a conductive material or an electromagnetic wave absorbing material is preferably used.

  Further, the specific configuration of the electromagnetic wave shielding body includes (i) a thin plate-like electromagnetic wave shielding plate, and (ii) a plurality of strip-shaped electromagnetic wave shielding plates arranged in a bellows shape so as to be foldable. And (iii) a plurality of small-diameter electromagnetic shielding rods arranged in a comb shape.

Moreover, as an arrangement | positioning structure of the said electromagnetic wave shielding body, there exist the following aspects, for example.
(1) In a state where the cover main body is overlaid on the front surface of the mobile phone, the electromagnetic shielding body is configured to correspond to the operation portion on the front surface of the mobile phone.

(2) In a state where the cover main body is overlaid on the front surface of the mobile phone, the electromagnetic wave shield is configured to correspond to the display portion on the front surface of the mobile phone.

(3) In a state where the cover main body is overlaid on the front surface of the mobile phone, the electromagnetic shielding body is configured to correspond to the operation portion and the display portion on the front surface of the mobile phone.

  Further, in the case where the latter cover body has a length dimension capable of covering and covering almost the entire front surface and the back surface of the mobile phone, the electromagnetic wave shielding body is disposed on a portion of the cover body that covers the mobile phone back surface. May be decorated.

  The cover body is preferably made of a breathable flexible material. In this case, for example, the cover main body is formed by laminating two cloth cloths, and the electromagnetic wave shielding body is sandwiched between the two cloth cloth cloths. Alternatively, the cover body is formed by laminating two cloth fabrics, and a plurality of storage pockets for storing the electromagnetic wave shielding body are formed between the two cloth fabrics. In addition, the electromagnetic wave shielding body is selectively and detachably housed.

  Further, the positioning and fixing portion of the cover body is provided with a fixing means for fixing to the surface of the mobile phone, and a planar fastener or an adhesive tape material is suitably employed as the fixing means.

  That is, according to the present invention, a thin plate-shaped electromagnetic wave shielding body made of an electromagnetic wave shielding material is incorporated inside the cover main body in the form of a flexible thin plate body having a shape and dimension corresponding to a mobile phone, A predetermined position of the cover main body is a positioning fixing portion that is positioned and fixed to the mobile phone, and in a state where the positioning fixing portion is positioned and fixed at an appropriate position on the surface of the mobile phone, the cover main body has the positioning fixing portion. As a fixed fulcrum, the structure can be selectively overlapped with the front surface or the back surface of the mobile phone, and at least when the cover main body is overlapped with the front surface of the mobile phone, the electromagnetic shielding member is the mobile phone. Since it is configured so as to correspond to the location where the electromagnetic wave is generated, the following excellent effects can be exhibited.

(A) Demonstrate sufficient electromagnetic shielding properties during a call.
Since the electromagnetic shielding body built in the inside of the cover body is composed of the conductive metal plate itself, the electromagnetic shielding effect is very strong, and these electromagnetic shielding bodies have the cover body on the front surface of the mobile phone. Since it is configured so as to correspond to an electromagnetic wave generation location of the mobile phone when it is overcoated, these electromagnetic wave shields are interposed between the mobile phone and the user's head during a phone call. It will be.

  As a result, the electromagnetic wave generated from the telephone body or antenna is surely attenuated or blocked by the electromagnetic wave shielding body and does not reach the user's head cell tissue. The risk of injury, skin damage or brain tumors is reliably avoided.

(B) The visibility and operability of the display unit and the operation unit of the mobile phone are not impaired.
The cover body has a structure that can be selectively overlapped with the front surface or the back surface of the mobile phone using a positioning fixing portion that is positioned and fixed to the mobile phone as a fixed fulcrum. When operating the operation unit while watching or viewing the display unit, the cover body can be stacked on the back of the mobile phone, and the visibility of the display unit and the operability of the operation unit are extremely good. There is no risk of erroneous operation based on these visibility and operability.

(C) It is applicable to various telephones and is versatile.
Since the cover body is in the form of a flexible thin plate having a shape and dimension corresponding to a mobile phone, and a predetermined portion of the cover body is a positioning fixing portion that is positioned and fixed to the mobile phone, the type of the mobile phone Regardless of the shape and size, for example, in the case of an integrated mobile phone in which the display unit and the operation unit are integrally provided in the telephone body, these parts are separately provided in the telephone body and the lid. Regardless of whether the mobile phone is a foldable mobile phone, the positioning and fixing portion can be positioned and fixed at an optimum location on the surface of the mobile phone to which it is applied.

  As a result, when the cover body is overlaid and covered on the front surface of the mobile phone, the electromagnetic wave shield is disposed in an exact correspondence with the location of the mobile phone where electromagnetic waves are generated. It can be exhibited stably at all times.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1
1 to 4 show an electromagnetic wave shield cover for a mobile phone according to the present invention, and this shield cover 1 is used for a foldable mobile phone 2 in the illustrated embodiment.

  In this foldable mobile phone 2, the phone body 3 and the lid 4 are opened as shown in FIGS. 2 and 3 with the support shaft 5 as an opening / closing center, as shown in FIG. 2 and FIG. As shown, it is configured to be folded into a closed state. On the front surface of the telephone body 3, a button operation unit (operation unit) 6 on which various operation buttons are arranged and a microphone 7 as a voice input unit are provided, and a transmission / reception antenna 8 is provided on the side thereof. Is provided. A liquid crystal display unit (display unit) 9 for displaying various information and a speaker 10 as an audio output unit are provided on the front surface of the lid 4.

  The electromagnetic shielding cover 1 includes electromagnetic shielding plates 12 and 13 serving as electromagnetic shielding bodies inside a cover main body 11 in the form of a flexible thin plate having a shape and size corresponding to the mobile phone 2. A positioning and fixing portion 14 is provided at a predetermined position of the cover body 11. In the illustrated embodiment, the width of the cover body 11 is a flexible thin plate having a shape corresponding to the width of the mobile phone 2.

  In the shield cover 1 of the illustrated embodiment, the cover body 11 is in the form of a long thin strip having a width corresponding to the width of the mobile phone 2. Specifically, as shown in the figure, the width dimension of the cover main body 11 is set to be substantially equal to the horizontal width dimension of the mobile phone 2 so that the antenna 8 protrudes slightly to the side. Also, the length of the cover body 11 is set to a size that allows the entire front surface of the mobile phone 2 in an open state to be covered and covered (see FIGS. 3A and 3B). Although the shield cover 1 of the illustrated embodiment does not cover the lower end portion of the telephone body 3 of the mobile phone 2, the length dimension that covers the entire front surface of the telephone body 3 including the lower end portion may also be used. good.

  As a constituent material of the cover body 11, a flexible thin material may be used, and a fabric material such as a woven fabric or a nonwoven fabric made of natural fibers or synthetic fibers, or a flexible synthetic resin sheet is preferably used. used. Further, the surface of the material and the fibers may be subjected to appropriate conductive treatment such as conductive metal plating such as copper plating or nickel plating so that the cover body 11 itself also exhibits an electromagnetic wave shielding effect.

  The cover main body 11 in the illustrated embodiment uses a belt-like cloth fabric as a breathable flexible material. Specifically, the two cloth fabrics 11a and 11b are overlapped and sewn in a laminated form. In addition, electromagnetic shielding plates 12 and 13 are internally fixed in a sandwiched manner between the two cloth fabrics 11a and 11b.

  The electromagnetic wave shielding plates 12 and 13 are thin plates made of an electromagnetic wave shielding material, and are formed to have a shape and size corresponding to an electromagnetic wave generation location of the mobile phone 2 to be shielded. As the electromagnetic shielding material, a conductive material excellent in electromagnetic wave attenuation characteristics such as conductive metals such as copper and lead, and an electromagnetic wave absorption material excellent in electromagnetic wave absorption characteristics such as tourmaline (tourmaline) and a magnetic material are preferably used. The electromagnetic wave shielding plates 12 and 13 in the illustrated embodiment are made of extremely thin lead plate materials.

  These electromagnetic wave shielding plates 12 and 13 are formed in a rectangular shape having a shape and dimension corresponding to an electromagnetic wave generation location of the mobile phone 2 to be shielded. In the illustrated embodiment, the electromagnetic wave shielding plate 12 has a shape and dimension corresponding to the button operation unit 6 of the telephone body 3 as indicated by broken line hatching in FIG. Reference numeral 13 denotes a shape dimension corresponding to the liquid crystal display unit 9 of the lid 4.

  The storage and fixing positions of the electromagnetic shielding plates 12 and 13 in the cover body 11 are also hatched in a broken line in FIG. 3A when the cover body 11 is overlaid on the front surface of the mobile phone 2 as will be described later. As shown, the electromagnetic wave shielding plates 12 and 13 are set at positions where the button operation unit 6 and the liquid crystal display unit 9 are respectively overlapped and covered.

  The positioning fixing part 14 is a part for positioning and fixing a predetermined position in the longitudinal direction of the cover main body 11 to the mobile phone 2. In the illustrated embodiment, the positioning fixing part 14 corresponds to the shape of the long cover main body 11 at one end thereof. In addition to being provided, the mobile phone 2 is positioned and fixed at the upper position on the back side of the mobile phone 2.

  The positioning and fixing portion 14 is provided with fixing means 15 for fixing the mobile phone 2 at appropriate positions including the front surface and the back surface. In the illustrated embodiment, a sheet-like fastener is bonded or removed as the fixing means 15. Sewing is fixed. Correspondingly, a surface fastener 16 that is detachably engaged with the surface fastener 15 in a pair is also bonded and fixed to an appropriate position on the surface of the mobile phone 2, specifically, the upper position of the back surface of the lid 4. ing.

  The positioning fixing portion 14 also functions as a longitudinal dimension adjusting portion of the cover main body 11. That is, the positioning and fixing portion 14 is composed of the two cloth fabrics 11 a and 11 b and has flexibility and air permeability. In the longitudinal direction of the cover body 11, the positioning fastener 14 and the surface fastener 15 are portable. By appropriately adjusting the engagement position of the telephone 2 with the surface fastener 16, as shown in FIGS. 3 (a) and 3 (b), the cover body 11 is overlaid on the front surface of the mobile telephone 2. The electromagnetic wave shielding plates 12 and 13 can be positioned correspondingly so as to accurately overlap and cover the button operation unit 6 and the liquid crystal display unit 9 on the front surface of the mobile phone 2. Even when the positioning and fixing portion 14 is arranged and adjusted at a position covering the speaker 10, the sound output from the speaker 10 is not hindered because it has air permeability.

  Similarly to the positioning and fixing portion 14, a planar fastener 17 is bonded or sewn and fixed to the opposite end portion of the cover main body 11 provided with the positioning and fixing portion 14. Correspondingly, a planar fastener 18 that is paired with the planar fastener 17 and is detachably engaged with the planar fastener 17 is also bonded and fixed to the lower back position of the lid 4 of the mobile phone 2.

  When the cellular phone 2 is not used, when the cellular phone 2 is folded in a closed state as shown in FIG. 4, the shield cover 1 is wound around the outer periphery of the cellular phone 2 and fixed. Therefore, it functions as a protective cover for the mobile phone 2.

  Thus, the electromagnetic wave shield cover 1 configured as described above has the positioning fixing portion 14 positioned and fixed by engaging the planar fastener 15 of the positioning fixing portion 14 with the planar fastener 16 of the mobile phone 2. Used in the following manner.

  In the above positioning and fixing, first, in a use state in which the lid 4 of the foldable mobile phone 2 is opened, as shown in FIG. The shielding plates 12 and 13 are arranged so as to face each other so that the button operation unit 6 and the liquid crystal display unit 9 on the front surface of the mobile phone 2 are accurately overlaid. Subsequently, in this arrangement state, the electromagnetic fastener 15 is aligned with the cellular phone 2 by engaging and fixing the planar fastener 15 at the end of the cover body 11 to the planar fastener 16 on the back surface of the cellular phone 2. Complete.

A. When using the mobile phone 2:
(1) When viewing the liquid crystal display unit 9 of the cellular phone 2 or operating the button operation unit 6 while viewing the liquid crystal display unit 9, the electromagnetic wave shield cover 1, that is, the cover main body 11 is fixed to the positioning fixing unit 14. As a fulcrum, as shown by a two-dot chain line in FIG. 2B, the liquid crystal display unit 9 and the button operation unit 6 are ensured in visibility by being folded toward the back side of the mobile phone 2. be able to.

(2) When making a call using the mobile phone 2, the cover body 11 is moved to the front side of the mobile phone 2 as shown by solid lines in FIGS. 3 (a) and 3 (b) with the positioning fixing portion 14 as a fixed fulcrum. By bending and overlapping the front surface of the mobile phone 2, the electromagnetic shielding plates 12 and 13 are in a state of overlapping and covering the button operation unit 6 and the liquid crystal display unit 9, respectively.

  In this state, when the mobile phone 2 is pressed against the user's ear, that is, in a state where the mobile phone 2 is in contact with the head, the electromagnetic wave shielding plates 12 and 13 are placed between the mobile phone 2 and the user's head. The electromagnetic waves generated from the telephone body 3 and the antenna 8 are surely attenuated or blocked by the electromagnetic wave shielding plates 12 and 13 and do not reach the user's head cell tissue. .

  In addition, since the cover body 11 is formed of a flexible cloth, it is gentle to the user's skin, has a comfortable feeling of use, and is more comfortable to use than when the telephone 2 is in direct contact. In addition, it is possible to exhibit an antifouling function for preventing contamination caused by direct contact of the user's skin with the telephone 2.

  Furthermore, the cover main body 11 made of cloth is air permeable, and does not hinder voice input to the microphone 7 or voice output from the speaker 10 during a call.

B. When the mobile phone 2 is not used:
When the cellular phone 2 is not used, as shown in FIG. 4, the lid 4 is closed and the cellular phone 2 is folded, and the shield cover 1, that is, the cover main body 11 is wrapped around the outer circumference of the folded cellular phone 2. By fixing, the shield cover 1 functions as a protective cover for covering and protecting the outer periphery of the mobile phone 2.

  As described above, according to the electromagnetic wave shielding cover 1 of the present embodiment, since the electromagnetic wave shielding plates 12 and 13 housed inside the cover body 11 are formed of the conductive metal plate itself, the electromagnetic wave shielding effect is obtained. The electromagnetic wave shielding plates 12 and 13 are very strong, and the electromagnetic wave generating portions of the mobile phone 2 (in the illustrated case, the button operation unit 6 and the liquid crystal) are formed when the cover body 11 is overlaid on the front surface of the mobile phone 2. The electromagnetic wave shielding plates 12 and 13 are interposed between the mobile phone 2 and the user's head when the mobile phone 2 is in a call because the mobile phone 2 is in a position corresponding to the display unit 9). .

  As a result, the electromagnetic waves generated from the telephone body 3 and the antenna 8 are surely attenuated or blocked by the electromagnetic wave shielding plates 12 and 13 and do not reach the user's head cell tissue. The risk of causing physical stress disorder, visual impairment, skin disorder or brain tumor is reliably avoided.

  Further, the cover body 11 has a structure that can be selectively overlapped with the front surface or the back surface of the mobile phone 2 with the positioning fixing portion 14 positioned and fixed to the mobile phone 2 as a fixed fulcrum. When the liquid crystal display unit 9 of the mobile phone 2 is viewed or the button operation unit 6 is operated while viewing the liquid crystal display unit 9, the cover body 11 can be overlaid on the back of the mobile phone 2. The visibility of the display unit 9 and the operability of the button operation unit 6 are extremely good, and there is no risk of erroneous operation based on these visibility and operability.

  Further, the cover main body 11 is in the form of a flexible thin plate having a shape and dimension corresponding to the mobile phone 2, and a predetermined portion of the cover main body 11 is a positioning fixing portion 14 that is positioned and fixed to the mobile phone 2. Therefore, the positioning and fixing portion 14 can be positioned and fixed at an optimum position on the surface of the cellular phone 2 to be applied regardless of the type and shape of the cellular phone 2.

  That is, in this embodiment, the case where the electromagnetic wave shield cover 1 is attached to the foldable mobile phone 2 is described. However, the liquid crystal display unit 9 and the button operation unit 6 are integrally provided in the phone body. The mobile phone (see FIGS. 9 to 11 to be described later) can also be mounted and used by positioning and fixing the positioning and fixing portion 14 at an optimal position on the surface of the mobile phone 2 to be applied.

Embodiment 2
This embodiment is shown in FIGS. 5 to 8, and the configuration of the electromagnetic wave shield cover 1 in the first embodiment is slightly modified.

  That is, in the electromagnetic wave shield cover 21 of the present embodiment, the cover body 11 not only overlaps and covers the entire front surface of the mobile phone 2 in an open state, but also the entire back surface of the mobile phone 2. Also has a length dimension that can be overcoated. Specifically, following the positioning and fixing portion 14 of the shield cover 1 of the first embodiment, a portion 21 a that covers the entire back surface of the mobile phone 2 is extended.

  In addition, an electromagnetic wave shielding plate 22 is housed in a portion corresponding to the telephone body 3 of the extended portion 21a. The electromagnetic wave shielding plate 22 has the same configuration as the electromagnetic wave shielding plates 12 and 13 described above, and is formed in a rectangular shape having a shape corresponding to the back surface shape of the telephone body 3.

  Thus, with such a configuration, the electromagnetic wave leaking to the back side of the telephone body 3 is reliably attenuated or blocked by the electromagnetic wave shielding plate 22 and reaches the cellular tissue of the palm of the user. Can be effectively prevented, and higher safety can be ensured.

When the cellular phone 2 is not used, as shown in FIG. 8, the lid 4 is closed and the cellular phone 2 is folded, and the shield cover 21, that is, the cover body 11 is placed on the outer periphery of the folded cellular phone 2. By winding and fixing, the shield cover 1 functions as a protective cover that completely covers and protects the outer periphery of the mobile phone 2.
Other configurations and operations are the same as those of the first embodiment.

Embodiment 3
The present embodiment is shown in FIGS. 9 to 11, and the shape and configuration of the electromagnetic wave shield cover is further modified. Specifically, the electromagnetic wave shield cover 31 of the present embodiment includes the liquid crystal display unit 9 and the liquid crystal display unit 9. The button operation unit 6 has a structure suitable for the integrated mobile phone 32 provided integrally with the phone body 33.

  That is, in the electromagnetic wave shield cover 31 of the present embodiment, the cover main body 11 has a length corresponding to the vertical length of the mobile phone 2 and sandwiches substantially the entire front and back surfaces of the mobile phone 32 from one side. It is in the form of a rectangular thin plate having a width dimension that can be overlaid (see FIGS. 11A and 11B). In this case, the shield cover 31 is configured to wrap around and cover the side of the mobile phone 32 where the antenna 8 is present.

  Further, the electromagnetic wave shielding plates 12 and 13 installed in the cover main body 11 correspond to the button operation unit 6 of the telephone main body 33, as shown by broken line hatching in FIG. The electromagnetic wave shielding plate 13 has a shape dimension corresponding to the liquid crystal display unit 9 of the lid 4.

  In relation to this, the storage and fixing positions of the electromagnetic wave shielding plates 12 and 13 in the cover body 11 are also shown in FIG. 11 (a) in a state where the cover body 11 is overlaid on the front surface of the mobile phone 2 as will be described later. As indicated by broken line hatching, the electromagnetic wave shielding plates 12 and 13 are set at positions where the button operation unit 6 and the liquid crystal display unit 9 are respectively overlapped and covered.

  Although not specifically shown, the electromagnetic wave shielding plate 22 may be provided in the portion of the cover main body 11 that is overlaid on the back surface of the telephone main body 33 as in the case of the second embodiment.

  The positioning fixing part 14 is a part for positioning and fixing a predetermined portion of the cover main body 11 to the mobile phone 2. In the illustrated embodiment, the positioning fixing part 14 is provided at one end in the lateral direction corresponding to the shape of the cover main body 11, The mobile phone 2 is structured to be positioned and fixed to one side of the back surface of the mobile phone 2.

  The surface fastener 15 of the positioning fixing portion 14 is bonded or fixed by sewing. Correspondingly, a planar fastener 16 that is detachably engaged in a pair with the planar fastener 15 is also bonded and fixed to the back surface 1 side of the mobile phone 2, that is, one side portion of the back surface of the lid 4. .

  The positioning fixing portion 14 also functions as a dimension adjusting portion in the lateral width direction of the cover body 11, and the engagement between the planar fastener 15 and the planar fastener 16 of the mobile phone 2 in the lateral width direction of the cover body 11. By appropriately adjusting the position, as shown in FIGS. 11A and 11B, the electromagnetic wave shielding plates 12 and 13 are connected to the mobile phone 32 in a state where the cover body 11 is overlaid on the front surface of the mobile phone 2. The button operation unit 6 and the liquid crystal display unit 9 on the front surface can be placed in corresponding positions so as to accurately overlap and cover each.

  Further, in the electromagnetic wave shield cover 31 of the present embodiment, even when the mobile phone 32 is not used, the cover main body 11 is carried as shown in FIGS. The telephone 32 is configured to sandwich the front and back from one side thereof, and functions as a protective cover for the mobile telephone 32.

  Thus, the electromagnetic wave shield cover 31 configured as described above fixes the positioning and fixing portion 14 by engaging the planar fastener 15 of the positioning and fixing portion 14 with the planar fastener 16 of the mobile phone 2. Use as follows.

  In the above positioning and fixing, as in the case described in the first embodiment, first, as shown in FIG. 11, the electromagnetic wave shielding cover 31 is overlaid on the front surface of the mobile phone 32 to cover the electromagnetic wave shielding plates 12 and 13. However, the button operation unit 6 and the liquid crystal display unit 9 on the front surface of the mobile phone 32 are arranged to face each other so as to accurately overlap and cover them. Subsequently, in this arrangement state, the cover body 11 is bent to the back side of the mobile phone 32, and the surface fastener 15 at the end thereof is engaged and fixed to the surface fastener 16 on the back surface of the mobile phone 32. Positioning of the electromagnetic wave shield cover 31 with respect to the mobile phone 32 is completed.

A. When using the mobile phone 32:
(1) When viewing the liquid crystal display unit 9 of the cellular phone 32 or operating the button operation unit 6 while viewing the liquid crystal display unit 9, the electromagnetic wave shield cover 31, that is, the cover main body 11 is fixed to the positioning fixing unit 14. As a fulcrum, as shown in FIGS. 10 (a) and 10 (b), visibility to the liquid crystal display unit 9 and operability to the button operation unit 6 can be ensured by opening in a planar shape.

(2) When making a call using the mobile phone 32, the cover body 11 is folded toward the front side of the mobile phone 2 as shown in FIGS. 11 (a) and 11 (b) with the positioning fixing portion 14 as a fixed fulcrum. By overlapping the front surface of the mobile phone 2, the electromagnetic shielding plates 12 and 13 are in a state of covering and covering the button operation unit 6 and the liquid crystal display unit 9, respectively. In this state, the cellular phone 2 is pressed against the user's ear, that is, the telephone is used while being in contact with the head.

B. When the mobile phone 2 is not used:
When the mobile phone 2 is not used, as in the case of making a phone call using the mobile phone 32, the cover body 11 can be carried as shown in FIGS. 11 (a) and 11 (b) with the positioning fixing portion 14 as a fixed fulcrum. The phone 32 is used as a protective cover for covering and protecting the outer periphery of the mobile phone 32 so that the front and rear surfaces of the phone 32 are sandwiched from one side.

  The above-described embodiment is merely a preferred embodiment of the present invention, and the present invention is not limited thereto, and various design changes can be made within the scope. As an example, the following design changes are possible.

(1) In the electromagnetic wave shield covers 1, 21, and 31 of the illustrated first to third embodiments, the electromagnetic wave shielding plates are provided so as to cover and cover both the button operation unit 6 and the liquid crystal display unit 9 on the front surface of the mobile phones 2 and 32, respectively. 12 and 13 are installed, but depending on the type (folding type or integral type) of the mobile phones 2 and 32, the location where the antenna 8 is installed, etc., the electromagnetic wave shielding so as to correspond only to the location where strong electromagnetic waves are generated. Plates 12 and 13 may be provided.

  For example, in the foldable mobile phone 2 as in the first and second embodiments, a particularly strong electromagnetic wave is generated from the portion of the telephone body 3 where the antenna 8 is provided. 6 may be provided. On the other hand, in the integrated mobile phone 32 as in the third embodiment, the liquid crystal display unit 9 of the phone body 3 provided with the antenna 8 is provided. Since particularly strong electromagnetic waves are generated from these parts, only the electromagnetic wave shielding plate 13 that covers the liquid crystal display unit 9 may be provided.

(2) Although not specifically shown, in the cover body 11 in which the two cloth fabrics 11a and 11b are laminated, the electromagnetic wave shielding plates 12 and 13 are interposed between the two cloth fabrics 11a and 11b. And a plurality of storage pockets for storing the electromagnetic wave shielding plates 12, 13, and 22 may be selectively and detachably stored in any of the plurality of storage pockets. In this case, it is desirable that the insertion outlet of the storage pocket has a structure that can be opened and closed by opening and closing means such as a fastener.

  By adopting a structure in which the electromagnetic wave shielding plates 12, 13, and 22 can be selectively and detachably housed in this way, the electromagnetic wave shielding covers 1, 21, and 22 can be provided with an optimal electromagnetic wave shielding effect for a wide variety of mobile phones 2 and 32. 31 can be provided, and electromagnetic wave shield covers 1, 21, 31 having a more versatile structure can be provided.

(3) The electromagnetic wave shielding bodies 12 and 13 are formed in the form of a thin electromagnetic wave shielding plate as in the first to third embodiments shown in the drawings, and although not specifically shown, the electromagnetic wave shielding bodies 12 and 13 can be folded in a bellows shape. A plurality of strip-shaped electromagnetic shielding plates, or a plurality of thin electromagnetic shielding rods arranged in an interdigital shape (both are plate-shaped as illustrated) Other forms capable of exhibiting a similar electromagnetic shielding function, such as a foldable and flexible configuration, can be employed.

(4) In the illustrated first to third embodiments, the surface fasteners 15 to 18 are employed as fixing means for the cover body 11, but adhesive tape material (not shown), fasteners such as snaps and buttons, etc. Other fixing means having similar functions can also be employed as appropriate.

(5) The installation locations of the fixing means 15 to 18 are not limited to those shown in the figure. For example, in the second embodiment, the fixing means provided in the positioning fixing portion 14 is not only the positioning fixing portion 14 but also portable. The cover body 11 may be provided so as to extend over the entire portion of the cover body 11 that covers and covers the entire back surface of the telephone 2, and the entire portion may be fixed to the back surface of the mobile phone 2 in close contact.

(6) In the illustrated first and second embodiments, the cover main body 11 is in the form of a long thin strip having a width corresponding to the width of the mobile phone 2. As described above, the width of the cover body 11 is set to be substantially equal to the width of the mobile phone 2 so that the mobile phone 2 can be directly gripped with fingers. The width dimension of 11 may be set to a size that can also cover the antenna 8, so that a more complete electromagnetic wave shielding effect can be obtained.

(7) Further, in the first and second embodiments, when the antenna 8 of the target mobile phone 2 is provided at the upper end of the side of the lid 4, the part that interferes with the cover body 11 is the mobile phone 2. In this case, the portion of the cover main body 11 corresponding to this portion may be cut out so as not to interfere with each other (not shown).

1 shows an electromagnetic wave shield cover for a mobile phone according to Embodiment 1 of the present invention, and FIG. 1 (a) is a front view showing a partial cut-out of the positional relationship with the back of a folding mobile phone to be used, FIG. b) is a side sectional view. FIG. 2 (a) is a front view showing a state where the electromagnetic wave shield cover is attached to the foldable mobile phone, and FIG. 2 (b) is a side view. FIG. 2 (a) is a front view showing a use state of the foldable mobile phone during a call, and FIG. 3 (b) is a side view. FIG. 2 (a) is a front view showing a usage state when the foldable mobile phone is not used, and FIG. 4 (b) is a side view. 5 shows an electromagnetic wave shield cover for a mobile phone according to a second embodiment of the present invention, and FIG. 5 (a) is a front view showing a partially cut-away arrangement relationship with the back of the folding mobile phone to be used, FIG. b) is a side sectional view. FIG. 6A is a front view showing the same electromagnetic shielding cover, FIG. 6A is a front view showing a state where the cover is attached to the folding mobile phone, and FIG. 6B is a side view. FIG. 7 (a) is a front view showing the usage state of the foldable mobile phone during a call, and FIG. 7 (b) is a side view. FIG. 8 (a) is a front view showing a usage state when the folding cellular phone is not used, and FIG. 8 (b) is a side view. 9 shows an electromagnetic wave shield cover for a mobile phone that is Embodiment 3 of the present invention, and FIG. 9A is a front view showing a partial cut-out of the positional relationship with the back surface of the integrated mobile phone to be used, FIG. b) is a side sectional view. Similarly, FIG. 10A is a front view showing a state where the electromagnetic wave shield cover is attached to the integrated mobile phone, and FIG. 10B is a plan view. Similarly, FIG. 11 (a) is a front view showing a use state of the integrated mobile phone during a call and when not in use, and FIG. 11 (b) is a side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electromagnetic wave shield cover 2 Folding-type mobile phone 3 Telephone main body 4 Cover body 6 Button operation part (operation part)
7 Microphone 8 Antenna 9 Liquid crystal display (display)
DESCRIPTION OF SYMBOLS 10 Speaker 11 Cover main body 12, 13 Electromagnetic wave shielding plate 14 Positioning fixing part 15 Planar fastener (fixing means)
16 Surface fastener 21 Electromagnetic wave shield cover 22 Electromagnetic wave shielding plate 31 Electromagnetic wave shield cover 32 Mobile phone 33 Telephone body

Claims (20)

An electromagnetic wave shield cover that covers a mobile phone and shields electromagnetic waves generated from the mobile phone,
An electromagnetic wave shielding body made of an electromagnetic wave shielding material is embedded inside a cover main body in the form of a flexible thin plate having a shape and dimension corresponding to a mobile phone, and a predetermined portion of the cover main body is attached to the mobile phone. It is a positioning and fixing part that is positioned and fixed,
In a state where the positioning and fixing portion is positioned and fixed at an appropriate position on the surface of the mobile phone, the cover main body can be selectively overlaid on the front or back surface of the mobile phone using the positioning and fixing portion as a fixed fulcrum. And
An electromagnetic wave shield for a mobile phone, wherein at least when the cover body is overlaid on the front surface of the mobile phone, the electromagnetic shield is positioned corresponding to an electromagnetic wave generation location of the mobile phone cover.   The electromagnetic wave shielding cover for a mobile phone according to claim 1, wherein the electromagnetic wave shielding material is a conductive material.   The electromagnetic wave shielding cover for a mobile phone according to claim 1, wherein the electromagnetic wave shielding material is an electromagnetic wave absorbing material.   The electromagnetic wave shielding cover for a mobile phone according to any one of claims 1 to 3, wherein the electromagnetic wave shielding body is in the form of a thin plate-shaped electromagnetic wave shielding plate.   The electromagnetic wave shielding cover for a mobile phone according to any one of claims 1 to 3, wherein the electromagnetic wave shielding body is composed of a plurality of strip-shaped electromagnetic wave shielding plates arranged so as to be foldable in a bellows shape.   The electromagnetic wave shielding cover for a mobile phone according to any one of claims 1 to 3, wherein the electromagnetic wave shielding body is composed of a large number of small-diameter electromagnetic wave shielding rods arranged in a comb shape. The electromagnetic wave shielding body is embedded inside the cover main body in the form of a long band having a width corresponding to the horizontal width of the mobile phone, and a predetermined portion in the longitudinal direction of the cover main body A positioning and fixing portion that is positioned and fixed to the mobile phone,
In a state where the positioning and fixing portion is positioned and fixed at an appropriate position on the surface of the mobile phone, the cover main body can be selectively overlaid on the front or back surface of the mobile phone using the positioning and fixing portion as a fixed fulcrum. And
2. The mobile phone according to claim 1, wherein when the cover main body is overlaid on the front surface of the mobile phone, the electromagnetic shielding body is configured to correspond to an electromagnetic wave generation location of the mobile phone. Electromagnetic wave shield cover for telephones. The electromagnetic wave shielding body is embedded inside the cover main body in the form of a rectangular thin plate having a length corresponding to the vertical length of the mobile phone, and a predetermined portion in the width direction of the cover main body is provided. A positioning and fixing portion that is positioned and fixed to the mobile phone,
In a state where the positioning and fixing portion is positioned and fixed at an appropriate position on the surface of the mobile phone, the cover main body can be selectively overlaid on the front or back surface of the mobile phone using the positioning and fixing portion as a fixed fulcrum. And
2. The mobile phone according to claim 1, wherein when the cover main body is overlaid on the front surface of the mobile phone, the electromagnetic shielding body is configured to correspond to an electromagnetic wave generation location of the mobile phone. Electromagnetic wave shield cover for telephones. The cover body has a length dimension capable of covering and covering almost the entire front surface of the mobile phone, and the positioning fixing portion is provided at one end thereof.
The electromagnetic wave shielding cover for a mobile phone according to claim 7, wherein the positioning fixing portion is positioned and fixed at an upper back position of the mobile phone. The cover body has a length dimension capable of covering and covering substantially the entire front surface and back surface of the mobile phone, and the positioning fixing portion is provided at an appropriate position in the longitudinal direction.
8. The electromagnetic wave shielding cover for a mobile phone according to claim 7, wherein the positioning fixing portion is configured to be positioned and fixed at an appropriate position on the back surface of the mobile phone. The electromagnetic wave shielding plate is configured to correspond to the operation unit on the front surface of the mobile phone in a state where the cover body is overlaid on the front surface of the mobile phone. Item 9. An electromagnetic wave shield cover for a mobile phone according to Item 7 or 8. The electromagnetic wave shield is configured to correspond to the display unit on the front surface of the mobile phone so as to cover the display portion on the front surface of the mobile phone in a state where the cover main body is overlapped on the front surface of the mobile phone. Item 9. An electromagnetic wave shield cover for a mobile phone according to Item 7 or 8. In the state where the cover main body is overlaid on the front surface of the mobile phone, the electromagnetic shielding body is configured to correspond to the operation portion and the display portion on the front surface of the mobile phone. The electromagnetic wave shielding cover for a mobile phone according to claim 7 or 8. 11. The electromagnetic wave shield cover for a mobile phone according to claim 8, wherein the electromagnetic wave shielding body is built in a portion of the cover body that covers and covers the back surface of the mobile phone.   The electromagnetic wave shield cover for a mobile phone according to any one of claims 7 to 14, wherein the cover body is made of a flexible material having air permeability. The cover body is formed by laminating two cloth fabrics, and the electromagnetic shielding body is sandwiched between the two cloth fabrics. Electromagnetic wave shield cover for mobile phones The cover body is formed by laminating two cloth fabrics, and a plurality of storage pockets for storing the electromagnetic wave shielding body are formed between the two cloth fabrics,
16. The electromagnetic wave shielding cover for a mobile phone according to claim 15, wherein the electromagnetic wave shielding body is selectively and detachably accommodated in any of the plurality of storage pockets.    The electromagnetic wave shielding cover for a mobile phone according to any one of claims 7 to 17, wherein the positioning fixing portion of the cover body is provided with a fixing means for fixing to the surface of the mobile phone. .    The electromagnetic wave shield cover for a mobile phone according to claim 18, wherein the fixing means is a planar fastener. The electromagnetic wave shielding cover for a mobile phone according to claim 18, wherein the fixing means is an adhesive tape material.

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