JP2002374111A - Portable device antenna - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable device antenna capable of rocking the antenna body over a wide range. SOLUTION: A portable device antenna 200 comprises a cylindrical antenna body 210, provided additionally on a side surface of a card frame 10A, a first bracket 220 mounted on a proximal end side of the antenna main body 210, and a second bracket 230 mounted rotatably on the first bracket 220, with the second bracket 230 being rotatably mounted on the card frame 10A. Thus, the antenna body 210 can be rocked over a wide range.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna for portable equipment capable of swinging an antenna body over a wide range.

[0002]

2. Description of the Related Art In recent years, in a small and portable electronic device called a mobile device or the like, a small antenna body is attached to a card-shaped thin plate structure (hereinafter simply referred to as a card frame), and the card frame is attached to an electronic device. A device that is mounted on a predetermined portion of the device has been proposed.

[0003] One example is shown in FIGS. 6 to 10. The illustrated portable device antenna 100 has a notch 10 formed on the side surface (right side in FIG. 6) of the card frame 10.
a so as to fit in a.

As shown in FIGS. 7 and 8, the card frame 10 is composed of an outer frame 11, a side frame 12, 13 which is placed above and below the frame 11, and a board frame 14 housed inside. Become.

On the other hand, the portable device antenna 100 has a substantially rectangular bracket 120 attached to the base side of a rod-shaped antenna body 110. This bracket 120
At least the inside is made of a metal member 121. The shaft portion 121a is fitted into a bearing portion 15 formed inside the base end portion 10b side of the cutout portion 10a on the card frame 10 side. Further, a bearing cover 130 is mounted on the upper side of the shaft portion 121a, as shown in FIG. Further, on the tip side 121b of the shaft portion 121a,
A connection fitting 140 for electrical connection is mounted.

With this structure, the antenna body 110
It can rotate (swing) about the shaft 121a. The antenna body 110 is electrically connected to the electronic component (not shown) of the board frame 14 through the metal member 121 of the bracket 120, the connection fitting 140, and the lead 141 of the fitting.

[0007]

However, in the case of the above structure, the antenna main body 110 can be rotated about the shaft portion 121a. However, the shaft portion of the metal member 121 of the roughly rectangular bracket 120 is merely used. As shown in FIGS. 6 and 10, it is possible to turn (swing) only a limited range as shown in FIGS.
This is because it is difficult to always set the antenna main body 110 in an optimal state in an antenna targeting a wide range of weak radio waves (transmitted / received signals) in a mobile device or the like, and the transmission / reception sensitivity is insufficient. There was a point.

The present invention has been made in view of such a conventional situation. Basically, the mounting portion between the antenna main body and the card frame is devised so as to cover a wider range of the antenna main body. This enables swinging and improves transmission / reception sensitivity.

[0009]

According to a first aspect of the present invention, there is provided a rod-shaped antenna main body attached to a side surface of a card frame, a first bracket mounted on a base end side of the antenna main body, A portable device antenna, comprising: a second bracket rotatably mounted on a first bracket, wherein the second bracket is rotatably attached to the card frame.

According to a second aspect of the present invention, the second bracket includes a shaft member mounted on the second bracket, and an engaging portion rotatably mounted on a shaft portion of the shaft member. 2. The portable device antenna according to claim 1, wherein the antenna is attached via a bearing piece fixed to the card frame side.

According to a third aspect of the present invention, there is provided the antenna for a portable device according to the first or second aspect, wherein the first bracket and the second bracket are rotatably mounted by a shaft pin.

According to a fourth aspect of the present invention, there is provided the portable device antenna according to the third aspect, wherein an elastic body is inserted into the shaft pin portion.

[0013]

FIG. 1 shows an entire antenna for a portable device according to the present invention, and FIG. 2 shows an exploded state thereof. In the figure, 10A is a card frame, and 200 is a mobile device antenna.

The card frame 10A is not particularly limited as long as it has a thin card shape.
In this example, the outer frame frame 11, the side frames 12 and 13 placed above and below the frame frame 11, and the board frame 1 housed inside the frame frame 11 may be used.
4 and a cylindrical cap frame 16.

In the portable device antenna 200, 21
Numeral 0 denotes a rod-shaped antenna main body attached to the side surface of the card frame 10A, 220 denotes a first bracket mounted on the base end side of the antenna main body 210, and 230 denotes a first bracket 22.
0 is a second bracket rotatably mounted on the second bracket, 240 is a metal shaft member mounted on the second bracket, 25
Reference numeral 0 denotes an engagement portion 251 such as a U-shaped groove rotatably mounted on the shaft portion 241 of the shaft member 240, and a metal bearing piece fixed to the card frame 10A side. A shaft pin 270 for rotatably mounting the second bracket 230 is an elastic body such as a coil spring inserted into the shaft pin 260, and 281 and 282 are cover pieces.

The first bracket 220 and the second bracket 230 are made of, for example, a block member made of resin or the like, and the base ends 221 and 231 abutting on each other are formed as substantially semicircular bracket pieces. First bracket 22
As shown in FIG. 3, a metal core 222 is placed inside 0. The metal core 222 is mounted on the antenna main body 210 side through a columnar portion 224 extending from the base end 221, and is further electrically connected to a conductor (not shown) inside the antenna main body 210.

In the vertical direction of the base ends 221 and 231 of the first bracket 220 and the second bracket 230 that abut each other, relatively large through holes 223 and 232 are formed. A small screw hole 225 is provided on the side of the metal core 222 located in the through hole 223 of the first bracket 220.
(A simple through hole is also possible).

As shown in FIGS. 3 and 4, the second bracket 230 has a T-shaped space portion 233 in the lateral direction.
The pedestal portion 242 and the extension piece 243 of the shaft member 240 are fitted. The second bracket 2 of the extension piece 243
A through hole 244 through which the shaft portion 261 of the shaft pin 260 passes is provided in a portion of the shaft pin 30 located in the through hole 232.

From these structures, the elastic body 270 has the first
The shaft pins 260 are housed on the contact surfaces of the through holes 223 and 232 of the base ends 221 and 231 of the bracket 220 and the second bracket 230 that are in contact with each other. The through hole 232,
The elastic body 270 is inserted into the through hole 223 of the first bracket 220, and the male screw part 262 at the tip is screwed into the screw hole 225 of the metal core 222. Thereby, the first bracket 220 and the second bracket 230 are elastically mounted so that the antenna main body 210 can swing by 180 ° as shown by the arrow A in FIG.

This swing (swing) is caused by the first bracket 2
20 and the base ends 221 and 23 of the second bracket 230
Since 1 is a bracket piece having a substantially semicircular shape, for example, the corner portion is not caught and the operation is performed smoothly. In addition, an elastic body 270 is inserted in the mounting portion of the first bracket 220 and the second bracket 230, and the elastic restoring force and the tightening force by the shaft pin 260 are well balanced, so that the mounting portion may be hardened. And can be swung with a light touch.

Further, according to the above structure, the metal core material 222,
The elastic body 270 and the shaft member 240 are also electrically connected. When the shaft pin 260 is made of metal, this also serves as an electrical connection element. The head of the shaft pin 260
Through-hole 244 provided in extension piece 243 of shaft member 240
Abut on the edge of When the screw hole 225 of the metal core material 222 is a simple through hole, the shaft pin 260
A nut or the like may be screwed into the male screw portion 262 from the opposite side. Further, it can be attached to this through hole by caulking. In this case, the shaft pin 260 may be a rivet-shaped member. The cover piece 281 is
The first bracket 220 is fitted into an enlarged diameter hole 226 provided on the outer side (upper side in FIG. 3) of the first bracket 220.
What is necessary is just to fit in the hole 234 of the diameter expansion provided in the outer side (3 middle lower side) of the bracket 230.

The first bracket 220 and the second bracket 230 integrated as described above are formed into a circular portion (shaft portion) 235 on the side (left side in FIG. 3) of the base end portion 231 of the second bracket 230. To the shaft portion 2 of the shaft member 240.
2 together with the card frame 10A as shown in FIG.
The engaging portion 251 such as a U-shaped groove of the bearing piece 250 is inserted into the shaft portion 241 of the shaft member 240 from the inside of the cap frame 16 from the inside of the cap frame 16. Engage. In addition, the bearing piece 250 is made of a thin metal plate,
An engaging portion 251 such as a U-shaped groove is provided in the thin plate portion. As a result, the antenna main body 210 moves around the shaft member 240 as shown by the arrow B in FIG.
It can rotate freely by 0 °.

In short, the portable device antenna 2 of the present invention
00, 360 around the shaft member 240
And rotation of the first bracket 220 and the first bracket 220 at the mounting portion of the second bracket 230.
Since the 80 ° swing is combined, the antenna body 21
0 can be swung over a wide range. An example is shown in FIGS. 5A and 5B.

If the contact (contact) 252 of the bearing piece 250 is brought into contact with a conductor (not shown) of the board frame 14 housed inside the card frame 10A, this conductor will become an antenna. It is electrically connected to the main body 210.

In the above embodiment, the first bracket 2
20 is a resin block member containing a metal core,
The present invention is not limited to this, and may be entirely made of metal. Further, the second bracket 230 is a resin block member, and the metal bracket member 240
However, it is also possible to integrate them into a metal.

[0026]

As is clear from the above description, according to the antenna for portable equipment according to the present invention, the antenna main body is
The antenna can be swung (turned) in a wide range, and as a result, an antenna having excellent transmission / reception sensitivity can be obtained. Of course, electrical connection can also be obtained through assembly of each antenna component. In addition, if an elastic body is put in the mounting portion of the first bracket and the second bracket and the elastic restoring force and the tightening force by the shaft pin are well balanced, the antenna body can be smoothly swung by a light touch. Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire antenna for a portable device according to the present invention.

FIG. 2 is a perspective view showing an expanded state of the mobile device antenna of FIG. 1;

FIG. 3 is a partial vertical sectional side view showing a deployed state of a mounting portion of a first bracket and a second bracket in the mobile device antenna of FIG. 1;

4 is a partial vertical sectional side view showing a deployed state of a mounting portion of a second bracket and a shaft member in the mobile device antenna of FIG. 1;

5A and 5B are perspective views showing a swinging state of an antenna main body in the portable device antenna of FIG. 1;

FIG. 6 is a perspective view showing an entire conventional antenna for a portable device.

FIG. 7 is a perspective view showing an expanded state of the mobile device antenna of FIG. 6;

8 is a perspective view showing an expanded state of the mobile device antenna of FIG. 6;

9 is a perspective view showing an assembled state of the mobile device antenna of FIG. 6;

10 is a perspective view showing a swinging state of the antenna main body in the portable device antenna of FIG. 6;

[Explanation of symbols]

 10A Card frame 200 Mobile device antenna 210 Antenna body 220 First bracket 230 Second bracket 240 Shaft member 241 Shaft section 250 Bearing piece 260 Axis pin 270 Elastic body

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // G06F 1/16 G06F 1/00 312M (72) Inventor Shogo Takai 2--11 Nishigotanda, Shinagawa-ku, Tokyo No. 20 F-term in Dai-ichi Denshi Kogyo Co., Ltd. (reference) 5B035 AA00 BA03 BB09 CA01 CA23 5J046 AA01 AA02 AA04 AA12 AB06 DA06 5J047 AA01 AA02 AA04 AA12 AB06 BF10 FA01 FD01 5K023 AA07 BB06 LL05

Claims (4)

[Claims] 1. A rod-shaped antenna main body attached to a side surface of a card frame, a first bracket mounted on a base end side of the antenna main body, and a second bracket rotatably mounted on the first bracket. A portable device antenna, comprising: a bracket; and the second bracket being rotatably attached to the card frame. And a second bracket having a shaft member mounted on the second bracket, an engaging portion rotatably mounted on a shaft portion of the shaft member, and being fixed to the card frame side. The antenna for a portable device according to claim 1, wherein the antenna is attached via a bearing piece. 3. The antenna for a portable device according to claim 1, wherein the first bracket and the second bracket are rotatably mounted by a shaft pin. 4. An antenna for a portable device according to claim 3, wherein an elastic body is inserted into said shaft pin portion.