JP3050272U - Mobile phone antenna - Google Patents

Abstract

(57) [Problem] To provide an antenna for a mobile phone which can be mounted by using an antenna mounting base provided on the mobile phone as it is. The antenna is provided with a function of adjusting directivity and transmission / reception sensitivity. SOLUTION: A base part 1 provided with a male screw capable of being screwed to an antenna mounting base of a mobile phone, a rotating member 2 attached to the base part 1 so as to be rotatable around its axis, An antenna main body 3 attached so as to be capable of being turned around the horizontal axis. The antenna main body 3 is connected to a plurality of elongated antenna units in a telescopic manner so as to be expandable and contractible.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a mobile phone antenna.

[0002]

[Prior art]

 In recent years, mobile phones as mobile communication means that have become increasingly popular have been equipped with antennas to improve the efficiency of transmission and reception. Even if the antenna could not be improved, or the antenna could be extended, it could only be extended upwards. The directivity cannot be adjusted while the antenna is extended, and if the mobile phone is set up on a desk or the like with the antenna extended, the antenna may protrude long above the mobile phone and obstruct it.

[0003]

[Problems to be solved by the invention]

 The present invention has been made in order to improve the above situation, and it is possible to use the antenna mounting base provided on the mobile phone as it is, and to mount the antenna on the mobile phone. Directivity and transmission / reception sensitivity can be adjusted by expanding or contracting the length or changing the inclination, and even when the mobile phone is standing by standing on a desk or the like, the antenna can be moved upward. It is an object of the present invention to provide an antenna for a mobile phone which can prevent a situation in which the antenna protrudes for a long time.

[0004]

[Means for Solving the Problems]

 The antenna for a mobile phone according to the present invention includes a base having an external thread which is screwed into a female screw provided in a base for mounting the antenna of the mobile phone, and a base rotatable around the axis thereof and arbitrarily rotated. A rotating member attached so as to be fixed and holdable at an angle, and an antenna body that can be tilted around the horizontal axis and is fixedly held at an arbitrary elevation angle on the rotating member. In addition, a plurality of elongated antenna units are connected so as to extend and contract.

[0005] The mobile phone antenna thus configured is attached to the mobile phone by screwing the male screw of the base portion into the female screw of the antenna mounting base of the mobile phone. The rotating member attached to the base member is rotatable around the axis of the base member and can be fixedly held at an arbitrary rotation angle, and the antenna body attached to the rotating member is turned upside down around the horizontal axis. Since the antenna can be fixed and held at any elevation angle, the antenna body can be set up vertically, fall down horizontally, tilted at a predetermined angle (angle adjustment function), or rotated around the axis of the base (rotation). Function) to adjust the directivity and transmission / reception sensitivity. In addition, since the antenna body is formed by connecting a plurality of elongated antenna units so that they can expand and contract, the length of the antenna unit can be extended longer than that of conventional antennas that do not have the expansion and contraction function. Together with the angle adjustment function and the rotation function, it is useful to increase the degree of freedom in adjusting directivity and transmission / reception sensitivity.

Further, the angle adjustment function described above prevents a situation where the antenna protrudes long upward and gets in the way even when the mobile phone is standing upright on a desk or the like. Will be able to do it.

[0007]

[Embodiment of the invention]

 FIG. 1 is a front view when the mobile phone antenna A according to the present invention is contracted, FIG. 2 is a front view when the mobile phone antenna A is extended, and FIG. 3 is a base for mounting the antenna of the mobile phone 7. 8, FIG. 4 is an explanatory view of the use state as viewed from the front, and FIG. 5 is an explanatory view of the use state as viewed from above.

As shown in FIGS. 1 and 2, the mobile phone antenna A includes a base 1, a rotating member 2 attached to the base 1, and an antenna body attached to the rotating member 2. 3 is provided.

The base 1 has a screw portion 11 having a male screw and a small-diameter shaft portion 12 protruding downward from the lower end of the screw portion 11. As shown in FIG. 3, the mobile phone 7 is mounted on the antenna mounting base 8 by screwing the female screw 81 of the antenna mounting base 8 provided on the mobile phone 7. When the screw portion 11 is attached to the antenna mounting base 8 in this manner, the shaft portion 12 is fitted into the hole 82 of the antenna mounting base 8 to stabilize the mounting state as shown in FIG. It has become useful. The mobile phone 7 is provided with a boss 71 integrally. When the screw 11 is attached to the antenna mounting base 8 as described above, the entire base 1 and one of the rotating members 2 are provided. And are inserted into the boss 71 thereof.

The rotating member 2 is attached to the base 1 so as to be rotatable around the axis of the base 1 and to be fixedly held at an arbitrary rotation angle. Various known structures can be adopted for the mounting structure of the rotating member 2 to the base portion 1, and the details are omitted here. Since the rotating member 2 is fixed to the base 1 so as to be fixedly held at an arbitrary rotation angle, when the rotating member 2 is rotated by a fixed angle with respect to the base 1, the rotating member 2 is rotated at the rotation angle position. It is fixed and held on the base 1. Therefore, the rotating member 2 does not freely rotate with respect to the base 1. Since the rotating member 2 is supported by the flange 13 of the base 1 and slides with the flange 13, wobbling of the rotating member 2 is suppressed by the flange 13. The rotating member 2 is integrally formed with a forked bracket 21 projecting upward.

The antenna main body 3 is formed as a telescopic type by connecting a plurality of (in the illustrated example, six) elongated antenna units 31, 32, 33, 34, 35, 36 having different thicknesses so as to extend and contract. Have been. That is, the six-stage antenna units 31 to 36 are concentrically connected in order of increasing thickness, and between the two adjacent antenna units, the upper-stage antenna unit having a smaller thickness is connected. It is connected to the lower antenna unit, which is thicker, so that it can be moved in and out while being fitted inside. Also, measures are taken between two adjacent antenna bodies so that they do not separate from each other. A connecting member 37 having a bracket 38 projecting downward is fixed to the lower end of the antenna unit 31 at the bottom of the thickest portion by caulking or the like, and the bracket 38 of the connecting member 37 is fixed. The bifurcated bracket 21 on the side of the rotating member 2 is fitted and clamped, and a horizontal axis 39 is used for the bifurcated bracket 21 at a place where the bracket 38 overlaps the bifurcated bracket 21. Connected. For example, a screw is used for the horizontal axis 39. With this configuration, the antenna main body 3 can be turned upside down with respect to the rotating member 2 about the horizontal axis 39. Further, since the bracket 38 on the antenna body 3 side is clamped by the forked bracket 21 on the rotating member 2 side, when the antenna body 3 is turned upside down, the antenna body 3 is rotated at an arbitrary elevation angle. 2 is fixedly held. Note that an antenna head 36a is attached to the upper end of the uppermost antenna unit 36 having the smallest thickness of the antenna body 3. The antenna head 36a also serves as a handle when the antenna body 3 is expanded and contracted.

The mobile phone antenna A thus configured is attached to the mobile phone 7 as described with reference to FIG. For the mobile phone antenna A attached to the mobile phone 7, the antenna main body 3 is expanded and contracted to adjust the antenna main body 3 to an arbitrary length, and the antenna main body 3 is tilted around the horizontal axis 39 so as to be tilted. It is possible to adjust the inclination to an arbitrary elevation angle, and to arbitrarily adjust the inclination direction of the antenna main body 3 inclined by rotating the rotating member 2 with respect to the base 1. FIG. 4 shows a state in which the antenna main body 3 is shortest and set up vertically, and at the same time, the antenna main body 3 is rotated about the horizontal axis 39 by angles θ1 and θ2 (θ1 = θ2 = 90 degrees). It also shows a state where it has been moved and set horizontally. FIG. 5 shows a state in which the antenna main body 3 is rotatable around the axis of the base 1 (see FIGS. 1 and 2) over a range of 360 degrees. Then, by adjusting the length, the inclination angle, and the inclination direction of the antenna main body 3, the directivity and the transmission / reception sensitivity can be adjusted.

When such a mobile phone antenna A is used, for example, when the mobile phone 7 is standing on a desk or the like and in a standby state, the mobile phone antenna A is tilted sideways as shown in FIG. 5, for example. If this is done, the situation where the mobile phone antenna A protrudes upwards for a long time and does not interfere will occur.

[0014]

[Effect of the invention]

 According to the present invention, since the antenna mounting base provided on the mobile phone can be used as it is, the antenna can be immediately mounted on the existing mobile phone without any modification of the mobile phone. There is the convenience of being able to do it.

In addition, the directivity and the transmission / reception sensitivity can be adjusted by extending or contracting the length or changing the inclination of the mobile phone in a state where the mobile phone is attached to the mobile phone. Even when the antenna is in the state, there is an advantage that it is possible to prevent the antenna from protruding long and obstructing.

[Brief description of the drawings]

FIG. 1 is a front view of the mobile phone antenna according to the present invention when the antenna is contracted.

FIG. 2 is a front view when the antenna is extended.

FIG. 3 is an explanatory view showing a state in which an antenna is mounted on an antenna mounting base of the mobile phone.

FIG. 4 is an explanatory diagram of a use state as viewed from the front.

FIG. 5 is an explanatory diagram of a use state viewed from above.

[Explanation of symbols]

A antenna for mobile phone 1 base part 2 rotating member 3 antenna body 7 mobile phone 8 antenna mounting base 31, 32, 33, 34, 35, 36 antenna unit 81 female screw

Claims (1)

[Utility model registration claims] 1. A base unit having a male screw screwed into a female screw provided on an antenna mounting base of a mobile phone, and attached to the base unit so as to be rotatable around its axis and fixedly held at an arbitrary rotation angle. Rotating member,
An antenna body attached to the rotating member so as to be capable of being turned around the horizontal axis and fixedly held at an arbitrary elevation angle,
An antenna for a mobile phone, wherein the antenna main body is formed by connecting a plurality of elongated antenna units so as to extend and contract.