JPH04185104A - Antenna for portable telephone set - Google Patents

Abstract

PURPOSE:To improve the workability by adopting the structure of the foldable antenna such that the antenna having stood upright is automatically folded and contained when an opposite connector is fitted to a high frequency input/ output connector of the portable telephone set. CONSTITUTION:When the foldable antenna 2 integrated with a main body 1 of the portable telephone set is in use, the antenna 2 is locked by a stopper 5 and not moved regardless that the antenna 2 is going to be folded by a rotating body 8. In the case of radiation of a radio wave other than the use of the antenna 2, the antenna 2 is automatically folded by connecting a high frequency connector 3 from which a high frequency output is emitted to an opposite connector 9. That is, the structure is so devised that the contact between the stopper 5 and the antenna 2 is released by allowing a sensing part 4 depressed the stopper 5 downward as the connector 9 is threaded into the connector 3. Thus, the antenna 2 is folded automatically in the main body 1 according to a torque of the rotating 8. Thus, a trouble of folding the antenna when no antenna is required is avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an antenna for a mobile phone, and more particularly to a foldable antenna that is integrated with the main body of a mobile phone and automatically folds.

[Conventional technology]

An example of a conventional mobile phone of this type is shown in FIG. Third
In the figure, there is no mechanical interaction between the retractable antenna 12 and the connector 13 for extracting high-frequency output. However, the foldable antenna 12 and connector 1
It is assumed that electrical switching between the high-frequency circuit and the mobile phone 11 can be performed inside the mobile phone main body 11 as necessary. Then, in FIG. 3, even if the connector 9 at the base of the antenna 10 is connected to the connector 13, the antenna 12 remains upright, so if the user wants to fold the antenna 12, he or she has to fold it with his or her own hands. is required.

[Problem to be solved by the invention]

In the conventional mobile phones mentioned above, it is up to the user to operate the foldable antenna, so it is difficult to fold the foldable antenna when it is not needed, and it is difficult to use it without folding it. If the antenna is placed on the mobile phone, the retractable antenna becomes a protrusion that can easily lead to damage, and when another antenna is attached to the mobile phone, the retractable antenna stands up, causing the radiation pattern to change and cause damage to the antenna. There are drawbacks such as the inability to obtain electrical performance.

[Means to solve the problem]

The antenna for a mobile phone of the present invention includes a retractable antenna that is integrated with the main body of the mobile phone, and a removable connector for radiating high frequency output in a method other than using the retractable antenna. , a sensing unit that detects whether or not a mating connector is connected to the connector;
and a rotating part that has a function of automatically folding down the foldable antenna in conjunction with the sensing part, and the foldable antenna is attached so that it is always folded into the main body by the rotating part. When the mating connector is not connected, it is erected outside the main body by the stop bar.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIGS. 1(a) and (b) are cross-sectional views of one embodiment of the present invention, and are views of a vertical plane including line A-A in FIG. 2 from the direction of arrow B. FIG. FIG. 3 is a perspective view of an example.

This embodiment includes a retractable antenna 2 integrated with the main body 1 of a mobile phone, a removable high-frequency connector 3 for radiating high-frequency output by a method other than using the retractable antenna 2, and A sensing part 4 that detects pressure whether or not a mating connector is connected to the high frequency connector 3;
It has a rotating part consisting of a rotating shaft 11 and a rotating body 8, which automatically folds down the foldable antenna 2 by the movement of the antenna.
The retractable antenna 2 is always urged to be folded into the main body 1 by this rotating part, and when it is not connected to the mating connector or the high frequency connector 3, it is stopped by the stopper 5 and pulled out of the main body 1*1. It appears to be standing up.

FIG. 1(a) shows the case where the retractable antenna 2 is used, and FIG. 1(b) shows the case where the antenna 10 is used by connecting the connector 9 to the high frequency connector 3. The part 4 moves up and down depending on whether or not the mating connector 9 is attached to the high frequency connector 3.
The stopper 5 moves up and down on the opposite side of the fulcrum 6 against the spring 7 by the up and down movement of the sensing portion 4 with the fulcrum 6 as the fulcrum. The spring 7 pulls the stopper 5 and the sensing section 4 upward.

In this embodiment, the rotating body 8 having the rotating shaft 11 is an elastic rotating body that constantly rotates the foldable antenna 2 in the direction of arrow C in FIG.
Although the rotor 8 is about to fold up, the foldable antenna 2 shown in FIG. When the connector 9 is inserted into the high frequency connector 3, the retractable antenna 2 is automatically folded in the following order.As the connector 9 is inserted into the high frequency connector 3, the sensing part 4 pushes the stopper 5 downward. 5 position or Figure 1 (b
), the stopper 5 and the retractable antenna 2 are brought into contact or released, so the retractable antenna 2 is moved to the rotating body 8.
It is automatically folded into the main body 1 with the rotational force of .

In this embodiment, an antenna 10 is provided on the opposite side of the connector 9.
Although the antenna is shown as an example, a wire such as a coaxial cable instead of an antenna will work in the same way.

〔Effect of the invention〕

As explained above, the present invention has a structure in which when the high frequency input/output connector of a mobile phone is mated with a mating connector, the upright retractable antenna is automatically folded. This saves the user the trouble of folding the retractable antenna every time it is not needed, prevents the user from damaging the retractable antenna by using it without folding it, and makes it easier to carry other antennas. Since the foldable antenna is always folded even when attached to a telephone, it has the effect of suppressing the influence on disturbances in the radiation patterns of other antennas.

[Brief explanation of the drawing]

FIGS. 1(a) and 1(b) are cross-sectional views of an embodiment of the present invention;
FIG. 2 is a perspective view of this embodiment, and FIG. 3 is a perspective view showing an example of a conventional mobile phone. 1.11...Mobile phone body, 2,12...Foldable antenna, 3,9.13...High frequency connector, 4...
・Rage part, 5...stopper, 6...fulcrum, 7...
Spring, 8... Elastic rotating body, 10...
Antenna, 11...Rotation axis.

Claims (1)

[Claims] 1. A retractable antenna integrated with the main body of a mobile phone, and a removable connector for radiating high-frequency output by a method other than using the retractable antenna;
The antenna is characterized by comprising a sensing section that detects whether or not a mating connector is connected to this connector, and a rotating section that has a function of automatically folding down the foldable antenna in conjunction with this sensing section. Antenna for mobile phone. 2. The retractable antenna is always urged to be folded into the main body by the rotating part, and stands up outside the main body by a stopper when the mating connector is not connected. The antenna for a mobile phone according to claim 1.