JP2002135020A - Antenna function improving tool and portable telephone case equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone case provided with such an electromagnetic wave intercepting means that can also function to improve the reception wave sensitivity of an antenna. SOLUTION: The portable telephone case has a housing section into and from which a portable telephone set can be inserted and removed through one opening and which can be fitted to the body of a user. The case is provided with a recessed member that is arranged on the body side of the top section of the antenna of the telephone set to reflect electromagnetic waves. The recessed member is constituted to elongate and contract as the antenna of the telephone set is elongated and contracted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna function improving device which can improve the function of an antenna when wearing a portable telephone in a special case and protect the human body from electromagnetic waves emitted from the portable telephone. And a mobile phone case provided with the same.

[0002]

2. Description of the Related Art Mobile phones have become more and more convenient, and their spread has been remarkable in recent years. However, on the other hand, electromagnetic waves emitted from mobile phones have become a social problem as having various adverse effects on the human body and the like. ing.

[0003] For example, an electromagnetic wave causes a malfunction of a cardiac pacemaker, and particularly has a large adverse effect on electronic devices and the like. In addition, as for the effects of electromagnetic waves on the human body, for example, electromagnetic waves emitted from a computer CRT monitor cause cancer, cause physiological disorders, and increase the probability that children of a specific gender will be born, especially in reproductive function. There are even research reports.

At present, not only mobile phones but also devices using radio waves, that is, radio devices are very frequently used, and many use strong radio waves (electromagnetic waves). Some point out that there is. Therefore, modern people are always exposed to electromagnetic waves.

[0005] However, since electromagnetic waves are invisible, the interest of people is surprisingly low, and it has become common sense to ban the use of mobile phones in hospitals at present due to the effects on the above-mentioned electronic devices. At present, very few people consider the effect on the user's own body when using a mobile phone.

[0006] In addition, while being taken up as a social problem as described above, no method has been proposed for at least the user of the mobile phone himself to prevent the influence of electromagnetic waves on himself / herself.

[0007] The applicant has previously proposed a portable telephone case that can block electromagnetic waves while wearing the portable telephone. (Utility model registration No. 3038306)

[0008]

However, the mobile phone case proposed by the applicant only protects the body from only the electromagnetic waves emitted from the mobile phone main body, and cannot expect the effect of blocking the electromagnetic waves from the extended antenna. Was something.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and to provide a portable telephone case in which the electromagnetic wave blocking means can simultaneously function to improve the receiving sensitivity of the antenna. It is.

[0010]

That is, the antenna function improving tool of the present invention is characterized in that a concave electromagnetic wave reflecting member is provided at the tip of an antenna provided in a portable telephone.

A portable telephone case provided with the antenna function improving tool according to the present invention has a storage portion into which a portable telephone can be pulled out and inserted through one opening, and can be attached to a body. The antenna device further includes a concave member that reflects electromagnetic waves, which is disposed substantially at the top side of the antenna, and is provided so as to be able to expand and contract with the expansion and contraction of the antenna of the telephone.

A portable telephone case provided with an antenna function improving tool according to the present invention has a storage portion into which a portable telephone can be pulled out and inserted through one opening, and can be attached to a body. A concave member for reflecting electromagnetic waves, which is disposed on the body side substantially at the top of the antenna, and a reflecting plate hanging down from the concave member over the entire length of the antenna, and the concave member and the reflecting plate are integrated into a It is also characterized in that it is provided so as to be able to expand and contract with the expansion and contraction of the antenna.

Further, the portable telephone case is characterized in that a metal sheet for shielding electromagnetic waves is provided on at least one surface of the body side.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an antenna function improving device of the present invention and a mobile phone case provided with the same will be described with reference to the drawings.

FIG. 1 is a perspective view and a side view showing a state in which a mobile phone is housed in a mobile phone case with an antenna function improving tool according to the present invention. In the figure, 1 is a mobile phone case main body, 2 is a mobile phone main body, 3 is an antenna, and 4 is a concave reflector having a spoon shape as a whole. 5 is a concave portion, 6
Is a relatively flat reflecting portion corresponding to a spoon handle.

The mobile phone case 1 is preferably made of leather, and is composed of a back plate 7 and a side plate 8. The side plate 8 has a shape in which the front end thereof is slightly wrapped around the front of the mobile phone 2, and is configured to wrap the mobile phone 2. Further, the lower end 9 of the side plate 8 extends around the bottom of the mobile phone 2 to prevent the mobile phone 2 from dropping. Although the front, upper end, and bottom are open due to the structure, the mobile phone 2 is pulled out and inserted through the opening 10 at the upper end.

However, the mobile phone case 1 is not limited to such a structure, and although not shown, a box-shaped storage portion having an opening at an upper end, and a rear portion of the configuration surface of the storage portion. , The cover may be bent to the front, and the tip may be fixed to the vicinity of the upper end of the storage unit by a snap hook. In this case, it is preferable to have a watermark window on the front. Reference numeral 14 denotes a clip (belt loop) attached to the belt.

That is, the reflector 4 has a concave shape like a spoon at the upper part (5), and the top 11 of the antenna is located almost at the center of this part. From the lower part of the concave portion 5, a substantially flat reflecting plate 6 slightly curved in the width direction hangs. This hanging part 6 is 2
Most of the divided lower reflector 6B is housed in the mobile phone case 1 and is provided so as to be able to appear and disappear.

A reflecting plate 6A hanging down from the concave portion 5
A holding member 12 for clipping the antenna 3 is provided on an upper portion of the lower reflecting plate 6B. As a result, the antenna 3 and the reflector 4 are integrated, and as shown in FIG. 2, the reflector 4 also comes and goes as the antenna 3 expands and contracts. Since the reflector 4 is divided into two, the upper concave portion 5 can be rotated by itself around the antenna 3 alone. When making a call while holding the telephone 2 in hand, the concave portion 5 is used by rotating it toward the human body.

By interposing the metal reflector 4 between the antenna 3 and the human body in this way, even if a telephone call is made using an earphone microphone with the telephone set 2 attached to the waist, for example, the antenna 3 It can block emitted electromagnetic waves.

In addition, on the back part 13 of the telephone case 1,
A metal sheet 14 is provided between the rear portion 13 and the mobile phone 2 housed in the interior so that the rear portion 13 is divided into two parts in the thickness direction over substantially the entire surface. The metal sheet is preferably a thin sheet of lead, but is not limited to a lead sheet as long as it blocks electromagnetic waves. The metal sheet 14 may be attached to the rear surface, or the rear portion may be composed of two separate leather sheets and stitched between them.

Further, since the upper portion of the reflector 4 is concave, a structure similar to that of a parabolic antenna can be expected.

When using the mobile phone case with the antenna function improving device of the present invention configured as described above, first, the mobile phone 2 is inserted from the upper end, and the clip 12 of the reflector 4 is fitted to the antenna 3. Then, it is fixed to a waist belt or the like (not shown).

When making a call, if the earphone microphone is used while being fixed to the waist, it is preferable that the reflector 4 is pulled up together with the antenna 3 so that the entire length of the antenna 3 is exposed.

In the case where the reflector 5 is held by hand, the concave reflector 5 is rotated by 180 degrees around the antenna 3 so as to be interposed between the top 11 of the antenna 3 and the head of a person. Good.

FIG. 4 shows another embodiment of the antenna function improving device of the present invention. (A) is a front perspective view and (B) is a side view.

Below the top 11 of the antenna 3, there is provided a flange 17 for mounting a reflector, on which a screw is cut. The stay portion 15 of the antenna function improving tool 4 whose lower end is bent in an L-shape is placed on the flange 17, and is fixed with a nut 16.

[0028]

As described above, the antenna function improving device of the present invention and the mobile phone case having the same are configured as described above, so that the reflection plate 4 interposed between the antenna 3 and the human body emits the electromagnetic wave emitted from the antenna 3. Because it blocks, the influence on the human body can be reduced.

Further, since the reflector 4 is curved toward the antenna 3, and especially the vicinity of the antenna top 11 is formed as a spoon-shaped concave surface, the same effect as a parabolic antenna can be obtained, and the sensitivity of the antenna 4 can be increased. .

[Brief description of the drawings]

1A and 1B are a perspective view and a side view, respectively, of a mobile phone case with an antenna function improving device of the present invention.

FIGS. 2A and 2C are perspective views showing the state of use, and FIGS. 2B and 2D are schematic plan views, respectively.

FIG. 3 is a fragmentary cross-sectional view showing the internal structure of the mobile phone case with the antenna function improving device of the present invention.

FIG. 4 is a perspective view and a side view showing another embodiment of the antenna function improving device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mobile phone case main body 2 Mobile phone main body 3 Antenna 4 Reflector whole 5 Concave part 6 Reflector 6A Upper reflector 6B Lower reflector 7 Back part 8 Side part 9 Lower end part 10 Upper opening 11 Antenna top part 12 Clip 13 Metal sheet 14 Belt loop 15 Antenna stay 16 Nut 17 Flange

Claims (4)

[Claims] 1. An antenna function improving tool comprising a concave electromagnetic wave reflecting member provided at a tip of an antenna provided in a mobile phone. 2. A mobile phone case which has a storage portion into which a mobile phone can be inserted and removed from one opening and which can be mounted on a body, and a concave surface for reflecting electromagnetic waves, which is arranged on the body side at the tip of an antenna of the phone. With a shaped member,
A mobile phone case with an antenna function improving tool, wherein the concave member is provided so as to be able to expand and contract with expansion and contraction of an antenna of the telephone. 3. A mobile phone case which has a storage portion into which a mobile phone can be pulled out and inserted from one opening and which can be mounted on a body, and a concave surface for reflecting electromagnetic waves disposed on the body side at the tip of an antenna of the phone. With a reflecting plate hanging down from this concave member over the entire length of the antenna and the antenna,
A mobile phone case with an antenna function improving tool, wherein the concave member and the reflector are integrally provided so as to be able to expand and contract as the antenna of the phone expands and contracts. 4. The mobile phone case with an antenna function improving device according to claim 1, wherein a metal sheet for shielding electromagnetic waves is provided on at least one surface of the mobile phone case on the body side.