JP2001257520A - Strap used in common with antenna for portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provided a strap used in common with antenna for portable telephone set, which does not require an unnecessary metallic fixture to be fitted directly even to a conventional portable telephone set, is simple and light-weight by removing a rod antenna built in a portable telephone set to be used in stead of this and is convenient in using and handling. SOLUTION: The strap 1 for suspending the portable telephone set includes an antenna member 3 consisting of a flexible conductor, a metallic connecting tool with a screw connected electrically to the member 3 is fitted to the end part of the strap 1 and the tool 22 is screwed to a female screw part 22 for fitting an antenna incorporated in the portable telephone set 21 to fit the strap 1 to the set 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna for a portable telephone for transmitting and receiving radio waves when used, and more particularly to a strap for an antenna of a portable telephone in which a strap for suspending the portable telephone also serves as an antenna. .

[0002]

2. Description of the Related Art Conventionally, a strap antenna for a mobile phone in which an antenna is incorporated in a strap for suspending the mobile phone is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 6-260979. In the strap antenna disclosed in Japanese Patent Application Laid-Open No. 6-260979, a connecting device electrically connected to the flexible antenna is attached to a strap incorporating a flexible antenna. The mobile phone is connected to a fixture provided on an upper side surface thereof, and is electrically connected to a rod antenna or an antenna terminal built in the mobile phone via the fixture.

[0003]

However, the above-mentioned conventional strap antenna is provided separately from a rod antenna built in the portable telephone, and a fixing device for attaching the strap antenna is attached to the portable telephone. Therefore, there is a problem that it cannot be directly attached to an existing mobile phone. In addition, since the fixing device is attached to the mobile phone, not only extra cost is required, but also the weight and volume are increased, and the mobile phone is required to be reduced in size and weight. However, there is a problem that the product value is reduced.

[0004] The present invention has been made in view of the above-mentioned problems of the prior art, and does not require extra fittings and the like, and can be directly attached to an existing mobile phone. By removing the rod antenna built into the mobile phone and using it instead,
An object of the present invention is to provide a mobile phone antenna / strap that is simple, lightweight, and convenient to use and handle.

[0005]

In order to achieve the above object, the present invention provides an antenna / strap which has a strap for suspending a mobile phone, the antenna including an antenna member made of a flexible conductor, and an end portion of the strap. A threaded connection fitting electrically connected to the antenna member is attached,
The threaded connection fitting is screwed to a female screw part for antenna attachment built in the mobile phone, and the strap is attached to the mobile phone.

[0006] The strap is formed by covering an antenna member made of a flexible conductive wire such as a flat knitted wire, a single wire, or a stranded wire with an insulating resin material or a fiber material. Further, the strap can be formed integrally with the antenna member by a flexible conductor such as conductive rubber or conductive resin.

The shape of the strap may be a loop, a single string, a spirally wound stretchable string, or other various shapes. In particular, when the strap is formed into a stretchable cord-like body that is spirally wound, it is preferable to provide a clip at the tip of the strap.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an antenna / strap of a mobile phone according to the present invention. The antenna dual-purpose strap includes a loop-shaped strap 1 in which an antenna member to be described later is incorporated, and a threaded connection fitting 2 attached to an end of the strap 1.

As shown in FIG. 3, the strap 1 is formed by bending an antenna member 3 composed of a flat braided copper wire with an insulating resin material 4 such as vinyl chloride into a loop shape. After the both ends 1a, 1a are sandwiched and connected by a U-shaped caulking fitting 5 made of a conductive metal material,
A pin insertion hole 6 penetrating the caulking fitting 5 and both ends 1 a, 1 a is provided, and is connected to the threaded connection fitting 2 via the caulking fitting 5.

The threaded connection fitting 2 is made of a conductive metal material such as a copper alloy and has a male screw portion 7 at one end, a strap mounting hole 8 at the other end, and a laterally extending strap mounting hole 8. Is provided with a pin hole 9 penetrating therethrough. And
Both ends 1a, 1a of the strap 1 are inserted into the strap mounting holes 8.
Is inserted, and the pin 10 is pressed into the pin hole 9 and the pin insertion hole 6 in a state where the pin insertion hole 6 and the pin hole 9 are aligned, and the strap 1 is inserted into the threaded connection fitting 2. It is fixedly connected. At this time, the caulking pin 10 that has passed through the pin insertion hole 6 in a press-fitted state contacts the antenna member 3, and the antenna member 3 and the threaded connection fitting 2 are electrically connected via the caulking pin 10.

On the other hand, the male thread 7 of the threaded connection fitting 2
As shown in FIG. 4, a female screw part 22 for attaching a rod antenna (not shown) built in the mobile phone 21 is provided.
Are formed on the same thread so that they can be screwed together. Since the female thread 22 for mounting the antenna is a M5 fine thread as a standard, the male thread 7 is made to be a fine M5 thread, so that the female thread 22 for mounting the antenna of the existing standard mobile phone 21 is screwed. It is possible to wear and attach. Further, when the threaded connection fitting 2 is screwed and attached to the female screw portion 22, the O-ring 11 is fitted to the proximal end of the male screw portion 7 as shown in the figure.

FIG. 5 shows a usage state in which the antenna and strap configured as described above is attached to the female screw portion 22 for attaching an antenna of the mobile phone 21. In use, after removing the rod antenna (not shown) incorporated in the mobile phone 21 from the female screw portion 22, the male screw portion 7 is screwed into the female screw portion 22 and the strap 1 serving also as an antenna is attached to the mobile phone 21. It is attached.

When such an antenna / strap is used, since the antenna member 3 is integrated with the flexible strap 1, it is not necessary to take it in and out like a conventional rod antenna, and there is little possibility of breakage. Also,
Since the rod antenna incorporated in the mobile phone is removed and replaced with the rod antenna, it is simple and lightweight.

FIG. 6 shows another embodiment of the strap which also serves as an antenna according to the present invention. The strap 1 is formed of a flat and elongated cord by a flexible conductor such as conductive rubber or conductive resin. The antenna member 3 is integrated with the strap 1 and has a dipole antenna structure. Therefore, the length of the strap 1 is changed according to the band frequency of the mobile phone 21. The structure for connecting the end of the strap 1 including the antenna member 3 to the threaded connection fitting 2 is the same as that shown in FIG. FIG. 7 shows a state of use attached to a mobile phone.

FIG. 8 shows still another embodiment, in which the strap 1 is made of a string 1 made of an insulating resin material.
2 is spirally wound and formed to be stretchable.
An antenna member 3 made of a flexible conductor is buried in one end of the antenna 2 to form a dipole antenna structure. The structure for connecting the end of the string-shaped body 12 including the antenna member 3 to the threaded connection fitting 2 is the same as that shown in FIG. In addition, a clip 13 is connected to the other end of the string-shaped body 12 to facilitate use and handling. Note that, also in this case, the length of the antenna member 3 is changed according to the band frequency of the mobile phone 21 to be used. FIG. 9 shows a usage state attached to a mobile phone.

[0016]

As described above, the antenna / strap according to the present invention is used by screwing the threaded connection fitting provided at the end of the strap to the antenna mounting female screw portion built in the mobile phone. Therefore, there is no need to attach extra fixing members or other mounting hardware to the mobile phone, and the mobile phone can be directly and easily mounted on an existing mobile phone. In addition, when used, the rod antenna built into the mobile phone is removed, and it is attached and used instead, so that it is simple and lightweight, and there is little risk of breakage. Very convenient.

[Brief description of the drawings]

FIG. 1 is a front view of an antenna / strap of a mobile phone according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged vertical sectional front view of the main part.

FIG. 4 is an explanatory view showing a connection structure of the connection fitting with a screw to a mobile phone.

FIG. 5 is a front view showing a usage state in which the antenna and strap is attached to a mobile phone.

FIGS. 6A and 6B show another embodiment of the antenna / strap according to the present invention, wherein FIG. 6A is a front view and FIG. 6B is a side view.

FIG. 7 is a front view showing a use state of the antenna and strap shown in FIG. 6;

FIG. 8 is a partially cutaway front view showing still another embodiment of the antenna / strap according to the present invention.

FIG. 9 is a front view showing a use state of the antenna / strap shown in FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Strap 2 Threaded connection metal fitting 3 Antenna member 4 Insulation coating 5 Caulking metal fitting 10 Caulking pin 12 Cord-like body 13 wound spirally 13 Clip 21 Mobile phone 22 Female screw part for antenna attachment

Claims (6)

[Claims] 1. A strap for suspending a mobile phone includes an antenna member made of a flexible conductor, and a threaded connection member electrically connected to the antenna member is attached to an end of the strap. A strap for an antenna of a mobile phone, wherein a connection fitting is screwed to a female screw portion for mounting an antenna built in the mobile phone, and the strap is mounted on the mobile phone. 2. The mobile phone according to claim 1, wherein the strap is formed by covering the antenna member made of a flexible conductive wire such as a flat knitted wire, a single wire, or a stranded wire with an insulating resin material or a fiber material. Antenna strap for phone. 3. The strap for an antenna of a mobile phone according to claim 1, wherein the strap is formed integrally with the antenna member by a flexible conductor such as conductive rubber or conductive resin. 4. The strap for antenna of a mobile phone according to claim 1, wherein the strap is formed in a loop shape. 5. The strap for antenna of a mobile phone according to claim 1, wherein the strap is formed in a single cord-like body. 6. The strap for antenna of a mobile phone according to claim 5, wherein the strap is formed in a helically wound elastic string.