JP3108227U - Foldable mobile phone case - Google Patents

Abstract

A foldable mobile phone case capable of effectively shielding electromagnetic waves in a simple form is provided.
A foldable mobile phone case 10 is formed in a bag shape having an opening B at one end, which is large enough to accommodate a folded mobile phone. The case 10 has two layers of a base material 12 and an electromagnetic wave shielding sheet 14 that is stuck on the entire inner surface of the base material 12. As the material of the electromagnetic wave shielding sheet 14, a material containing silver as a conductive metal or a material containing copper and nickel is used. At the time of reception, the cellular phone A is taken out from the case 10, the reception operation is performed after opening the second casing A 2, and the second casing A 2 is placed in the case 10 in a call-ready state. A call is made by placing the exposed first casing A1 on the ear.
[Selection] Figure 1

Description

  The present invention relates to a case for a foldable mobile phone used to reduce radiation of electromagnetic waves.

A mobile phone emits high-frequency electromagnetic waves mainly during transmission and reception.
This high-frequency electromagnetic wave has a problem that it may cause malfunction of a medical device or cause a cardiac pacemaker to fail.
In addition, high-frequency electromagnetic waves have been pointed out to be harmful to human cells and the immune system. In this sense, there is a concern about the impact on users who use mobile phones near the brain.

Originally, in order to avoid an electromagnetic wave from adversely affecting a circuit as noise, a mobile phone is provided with an electromagnetic wave shielding structure.
However, the reality is that it has not yet been possible to prevent radiation of electromagnetic waves from the casing of the mobile phone to the outside.
Although it is technically possible to reduce the radiation of electromagnetic waves by further strengthening the electromagnetic wave shield structure, it seems that the increase in cost required and the problem of bulkiness of mobile phones cannot be avoided. .

  On the other hand, various techniques for accommodating a mobile phone in a case with an electromagnetic wave shielding function have been proposed (see, for example, Patent Documents 1 to 4).

These technologies are preferable from the viewpoints of ensuring the electromagnetic wave shielding function and not hindering the transmission / reception function, not hindering the operability of the mobile phone, and improving the portability of the case. It is characterized in that it proposes a case form.
Japanese Utility Model Registration No. 3070334 Japanese Utility Model Registration No. 3081303 Japanese Utility Model Registration No. 3088423 Japanese Utility Model Registration No. 3099393

However, the above conventional case generally has a complicated structure, which makes it difficult to handle the cellular phone when the cellular phone is attached to or detached from the case or to operate the cellular phone, and the case cannot be obtained at low cost. .
On the other hand, high-frequency electromagnetic waves are generated from the mobile phone mainly during transmission and reception, and at that time, the electromagnetic waves are not uniformly radiated from the entire surface of the mobile phone casing with the same intensity. In recent years, mobile phones have been mainly folded, but there is room for studying an effective electromagnetic shielding method from this viewpoint.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a foldable mobile phone case capable of effectively shielding electromagnetic waves in a simple form.

A foldable mobile phone case according to the present invention includes a first housing having at least communication means and a mouthpiece, and is supported to be openable and closable with respect to the first housing, and has at least a display and a mouthpiece. A foldable mobile phone case capable of accommodating a foldable mobile phone comprising a second housing,
A length dimension approximately equal to the length dimension of the first casing, a width dimension approximately equal to the width dimension of the first casing, and the thickness dimension of the first casing and the second casing. It has a thickness dimension approximately equal to the combined dimension, and is formed in a bag shape with one end in the length direction opened,
The substrate is characterized by having an electromagnetic wave shielding sheet containing silver or an electromagnetic wave shielding sheet containing copper and nickel, which is provided over the entire inner surface of the substrate.

  Further, the case for a foldable mobile phone according to the present invention is characterized by having a diaphragm means for narrowing the opening at the one end.

  The folding cellular phone case according to the present invention is characterized in that an opening is formed at a location corresponding to the mouthpiece of the first housing to be accommodated.

The foldable mobile phone case of the present invention has a length dimension and a width dimension substantially equal to the length dimension and the width dimension of the casing having the communication means and the mouthpiece, and the thickness dimension of the entire casing when folded. It has a substantially equal thickness dimension, is formed in a bag shape with one end in the length direction opened, and an electromagnetic wave shielding sheet is provided on the entire inner surface of the substrate.
For this reason, it is possible to easily put a mobile phone folded in a case with a simple structure, and when transmitting and receiving, only a casing having a communication means and a mouthpiece, which are main sources of electromagnetic waves, is placed in the case. By accommodating, it is possible to effectively reduce the irradiation of electromagnetic waves particularly to the user of the mobile phone.

  A preferred embodiment of the present invention will be described with reference to the drawings.

  A foldable mobile phone case according to an embodiment of the present invention will be described with reference to FIGS.

  A foldable mobile phone case 10 (hereinafter sometimes simply referred to as a case) according to an embodiment of the present invention is a bag-like shape having an opening at one end that is large enough to accommodate a folded mobile phone. Formed. That is, a length dimension L substantially equal to the length dimension of the first casing A1 of the foldable mobile phone A shown in FIGS. 2 and 3 and a width dimension W also substantially equal to the width dimension of the first casing A1. And a thickness dimension D substantially equal to the combined thickness dimension of the first casing A1 and the second casing A2, and one end in the length direction is opened (indicated by an arrow B in FIG. 1). Formed into a bag shape. The size of the case 10 refers to a dimension that allows the mobile phone to be easily taken in and out as long as the mobile phone that has been folded is not easily removed from the case (see FIG. 2). In this case, the case 10 may be deformable following the outer shape of the foldable mobile phone A, or may be a rectangular parallelepiped.

  The case 10 has two layers of a base material 12 and an electromagnetic wave shielding sheet 14 that is stuck on substantially the entire inner surface of the base material 12. In this case, if necessary, another layer may be provided between the base material 12 and the electromagnetic wave shield sheet 14, or the inner surface of the electromagnetic wave shield sheet 14 attached to the inner surface of the base material 12, that is, Another layer may be provided on the innermost surface. Moreover, you may provide the electromagnetic wave shield sheet 14 in the state which exposed a part of base material 12 as needed.

The material of the base material 12 is not particularly limited, and can be appropriately selected from natural leather, synthetic leather, synthetic resin, natural fiber woven fabric, synthetic fiber woven fabric, and the like. When a synthetic resin is used, it may be a flexible sheet or a rigid plate.
The thickness and the like of the substrate 12 are not particularly limited.

The material of the electromagnetic wave shielding sheet 14 can be appropriately selected from known materials and is preferably one containing silver as a conductive metal or one containing copper and nickel.
In the former case, for example, a woven fabric or a sheet using silver-coated polyester long fibers (Silfiber (trademark) manufactured by Mitsubishi Materials Co., Ltd.), and in the latter case, for example, a laminated sheet containing copper and nickel in a resin ( Seiren Co., Ltd. form) can be suitably used.
An electromagnetic wave shielding sheet using these materials can obtain a larger electromagnetic wave shielding effect as compared with those using other materials.
The thickness etc. of the electromagnetic wave shield sheet 14 are not particularly limited.

Here, the foldable mobile phone A will be described with reference to FIG.
As described above, the foldable mobile phone A includes the first casing A1 and the second casing A2 that is supported to be openable and closable with respect to the first casing A1 via the support shaft A3. The
The first casing A1 is provided with a circuit or the like constituting communication means inside (not shown), and a key for performing transmission / reception operation on the surface (indicated by an arrow A4 in FIG. 3). Etc. are provided. Further, usually, the mouthpiece A5 is provided at the lower part of the first casing A1, in other words, on the side far from the support shaft A3.
The second casing A2 is provided with a display A6 at the center, and has an earpiece A7 on the top of the display A6, in other words, on the side far from the support shaft A3.

A method of using the foldable mobile phone A configured as described above by attaching to and detaching from the case 10 will be described taking the case of reception as an example.
When the foldable mobile phone A is not used, that is, when transmission / reception is not performed, only weak electromagnetic waves resulting from transmission / reception of weak radio waves for specifying the position of the foldable mobile phone A are radiated, In general, the foldable mobile phone A is accommodated in a pocket or a bag of upper and lower clothes and is away from the head of the human body, so that the electromagnetic wave radiated has little effect on the human body.
For this reason, as shown in FIG. 2, if the foldable mobile phone A is inserted into the case 10 in a folded state, it is sufficient as an effect of preventing radiation of electromagnetic waves, and the foldable mobile phone A is mounted on the case 10. Can be easily put in and out.

  When the foldable mobile phone A receives radio waves, since the foldable mobile phone A is in the case 10, radiation of electromagnetic waves is sufficiently prevented.

The user hears the sound and light emission informing the reception, takes out the foldable mobile phone A from the case 10, opens the second housing A 2, performs a reception operation, and makes a call possible state.
Then, as shown in FIG. 3, after the second casing A <b> 2 is housed in the case 10, the first casing A <b> 1 exposed from the case 10 is put on the ear to make a call. During a call, electromagnetic waves radiated from the second housing A2 are shielded by the case 10, so that the influence on the human body is greatly mitigated.

  Next, a modification of the case 10 for a foldable mobile phone according to the embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 4, the case 10a of the first modified example has a throttle means for narrowing the opening B of the case 10a.
In this case, the squeezing means is a so-called purse string-like string, and a plurality of slits 16 are provided at one end of the case 10a along the opening B. It is to adjust the thickness.
When the second casing A2 of the foldable mobile phone A is housed in the case 10a, the first casing A1 exposed from the case 10a is put on the ear and a call is made (see FIG. 3). The electromagnetic wave radiated through the opening B can be reduced by a simple operation of narrowing down.

In the present invention, to narrow down the opening B means to reduce the opening area of the opening B as described above, and therefore, the narrowing means includes a wide range of means for achieving such an object.
As such a squeezing means, a case 10b of the second modification shown in FIG. 5 is provided with hook-and-loop fasteners 20 at both ends in the width direction of the case 10b.
Thereby, case 10b can acquire the same effect as the case of case 10a of the 1st modification.

As shown in FIG. 6, the case 10c of the third modified example has an opening C formed at a location corresponding to the mouthpiece A5 of the first casing A1 of the foldable mobile phone A accommodated in the case 10c. It is a thing.
Thereby, transmission can be performed more clearly.

  The embodiment of the present invention described above is about a case for a foldable mobile phone, but it goes without saying that it can be applied to a case for other wireless communication devices as long as it is a foldable type.

It is a figure which shows the case for folding type mobile telephones which concerns on embodiment of this invention. It is a figure which shows the state which accommodated the folded mobile phone in the case for foldable mobile phones of FIG. It is a figure which shows the use condition in the telephone call of the case for folding type mobile telephones of FIG. It is a figure which shows the case for folding type mobile telephones of a 1st modification. It is a figure which shows the case for folding type mobile telephones of a 2nd modification. It is a figure which shows the case for folding type mobile telephones of a 3rd modification.

Explanation of symbols

10, 10a to 10c Foldable mobile phone case 12 Base material 14 Electromagnetic wave shield sheet 18 String 20 Surface fastener B, C Opening

Claims (3)

A foldable mobile phone comprising at least a first casing having a communication means and a mouthpiece, and a second casing having at least a display and a mouthpiece supported so as to be openable and closable with respect to the first casing. Foldable mobile phone case that can accommodate
A length dimension approximately equal to the length dimension of the first casing, a width dimension approximately equal to the width dimension of the first casing, and the thickness dimension of the first casing and the second casing. It has a thickness dimension approximately equal to the combined dimension, and is formed in a bag shape with one end in the length direction opened,
A foldable mobile phone case comprising a base material and an electromagnetic wave shielding sheet containing silver or an electromagnetic wave shielding sheet containing copper and nickel, which is provided substantially over the entire inner surface of the base material.   2. A foldable mobile phone case according to claim 1, further comprising a diaphragm means for narrowing the opening at the one end.   The case for a foldable mobile phone according to claim 1 or 2, wherein an opening is formed at a location corresponding to the mouthpiece of the first casing to be accommodated.

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