JP2001069029A - Portable radio terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate electric connection between an antenna section and a printed circuit board in a device main body, to enhance the assemblability, the operability and to make the device main body compact in a portable radio terminal that can communicate voice, characters and graphic data or the like in a radio wave. SOLUTION: The portable radio terminal is provided with an antenna section 1 that has a shaft section 4a having an electric conductivity capable of signal conduction and made of a turnable cylindrical metallic member and a bearing section 5 that is mounted on the printed circuit board 3 in the device main body 2, whose elastic piece 5a is always pressed into contact with part of the shaft section 4a independently of a turning angle of the antenna section 1 and that has electric conductivity that conducts a signal between the antenna section 1 and the power consumption 3 in the device main body 2 through the shaft section 4a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless terminal having an antenna unit and capable of wirelessly communicating voice, character, graphic data, and the like.

[0002]

2. Description of the Related Art FIG. 11 is an exploded perspective view of a conventional portable radio terminal, and FIG. 12 is a longitudinal sectional view of a main part of the portable radio terminal.

As shown in FIGS. 11 and 12, a conventional portable radio terminal includes an antenna unit 1 for wirelessly communicating voice, text, and graphic data.
The antenna section 1 has a rotatable shaft section 4 having a hollow inside, and the shaft section 4 is rotatably fitted into a circular opening 6 b of a housing 6 in the device main body 2 so as to be rotatable and withdrawable. ing. Then, the wired cable 12 extends from the inside of the antenna section 1 to the hollow section 4 c inside the shaft section 4.
Is wired to a printed circuit board 3 in the device main body 2 through which data processed by the printed circuit board 3 held in the device main body 2 is transmitted through the antenna unit 1,
A signal input from the antenna unit 1 is subjected to signal processing on a printed circuit board 3 inside the device main body 2.

[0004]

In the conventional portable radio terminal having the above configuration, the electrical connection between the antenna unit 1 and the printed circuit board 3 inside the device main body 2 is made by a wired cable 12 or the like. At the time of assembling the device main body 2, there is a problem such as poor workability when connecting the wired cable 12.

For electrical connection between the antenna unit 1 and the equipment body 2, a wired cable 1 is provided inside a hollow shaft 4.
2, the diameter of the shaft portion 4 is large, the circular opening 6b of the housing 6 for the rotation of the antenna portion 1 is large, and when the antenna portion 1 is rotated. In order to apply the torque, a separate piece is required, and further space is required inside the device main body 2 for attaching the separate piece, and there has been a problem that the size of the device main body 2 is prevented from being reduced in size.

[0006] The present invention solves the above-mentioned problems, and ensures the reliability of the electrical connection of the antenna unit, and improves the workability and the workability.
It is an object of the present invention to provide a portable wireless terminal capable of improving operability and reducing the size of a device body.

[0007]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention has an electrically conductive and electrically rotatable shaft part made of a cylindrical metal member capable of supplying a signal to an apparatus main body. The antenna unit is mounted on a printed circuit board arranged in the device main body, and is always in pressure contact with a part of the shaft unit regardless of the rotation angle of the antenna unit, and the antenna unit and the printed circuit board in the device main unit are passed through the shaft unit. A portable wireless terminal provided with a bearing part having electrical conductivity through which the signal can be supplied.

According to the present invention, when assembling the main body of the apparatus, the printed circuit board on which the bearing portion is mounted is arranged on the main body of the apparatus having the antenna section attached thereto, and the antenna section is connected to the main body only by fixing the printed circuit board with screws. Connection to the printed circuit board in the device body became possible, and the shaft part provided in the antenna part and the bearing part mounted on the printed circuit board were always pressed with a constant load regardless of the rotation angle of the antenna part Since the antennas are in contact with each other in a state, torque can be applied to the rotation of the antenna unit without using a separate piece, and workability and operability are improved, and the device body can be made compact.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a portable wireless terminal capable of wirelessly communicating voice, character, graphic data, and the like, and is an electric device capable of supplying a signal to a device body. Having an electrically conductive, and an antenna portion having a shaft portion made of a rotatable cylindrical metal member,
It is mounted on a printed circuit board arranged in the main body of the device, and has an elastic piece that is constantly pressed against a part of the shaft portion, and
A portable wireless terminal including a bearing portion made of an electrically conductive metal member capable of conducting signals between the antenna portion and a printed circuit board in the main body through the shaft portion, and is used when assembling the device main body. In addition, the printed circuit board on which the bearing unit is mounted is arranged on the apparatus body to which the antenna unit is attached, and the connection between the antenna unit and the printed circuit board in the apparatus body can be performed only by the operation of fixing the printed circuit board with screws.
In addition, since the shaft provided on the antenna and the bearing mounted on the printed circuit board are always in contact under a constant load regardless of the angle of rotation of the antenna, the shaft is in contact with the antenna. On the other hand, torque can be applied without using a separate piece, which has the effect of improving workability and operability and making the device body compact.

[0010] According to a second aspect of the present invention, in the portable wireless terminal according to the first aspect, the bearing portion has a circumferential surface that is in contact with a cylindrical shaft portion on a part of the elastic piece. The contact portion between the outer peripheral portion of the shaft portion and the bearing portion can be brought into surface contact, and the electrical connection between the antenna portion and the printed circuit board on which the bearing portion is mounted is easy while the electrical connection is easy. This has the effect of improving connection reliability.

According to a third aspect of the present invention, in the portable wireless terminal according to the first aspect, the device main body includes a rib for supporting a part of the bearing portion inside, and the bearing portion is provided. Can reduce the load on the bearing portion and the solder fixing portion of the printed circuit board, which can occur due to the constant pressure contact state, and have the effect of improving the reliability of the electrical connection.

According to a fourth aspect of the present invention, in the portable wireless terminal according to the first aspect, the shaft portion has a hemispherical concave portion on a part of the outer periphery, and the bearing portion has an elastic piece. The contact surface with the shaft part is divided into two parts, and one of the divided parts is provided with a hemispherical convex part which fits into the concave part. Has an effect of improving operability.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1) FIG. 1 is an external perspective view of a portable wireless terminal according to Embodiment 1 of the present invention, FIG. 2 is an exploded perspective view of the portable wireless terminal, and FIG. FIG. 4 is a cross-sectional view of a main part of the portable wireless terminal. In each of the drawings, the same components as those of the conventional technology are denoted by the same reference numerals as those of the conventional technology.

The portable wireless terminal of the portable device 1 of the present invention communicates voice, character, and graphic data wirelessly. As shown in FIGS. 1, 2, 3, and 4, Includes an antenna unit 1 for performing wireless transmission and reception, and a printed circuit board 3 electrically connected to the antenna unit 1 therein.

The antenna section 1 has a shaft section 4a made of a cylindrical metal member having electrical conductivity capable of conducting a signal and serving as a fulcrum when rotating.
The printed board 3 is provided with a bearing portion 5 which is made of a metal member having an L-shaped cross section and which has electrical conductivity capable of conducting a signal and has an elastic piece 5a which is in pressure contact with the shaft portion 4a. .

The antenna unit 1 is provided with a housing 6 of the device main body 2.
The shaft portion 4a is inserted into the circular opening 6b of the side portion 6a
And is fixed with an E-ring or the like (not shown here). On the other hand, the bearing portion 5 is mounted on the printed circuit board 3 so that the elastic piece 5a is parallel to the shaft portion 4a.

At this time, the electrical connection between the antenna unit 1 and the printed circuit board 3 in the equipment main body 2 is made by contact of the shaft portion 4a and the elastic piece 5a of the bearing portion 5 in a press-contact state. The length from the printed board 3 to the elastic piece 5a of the shaft portion 4a of the bearing portion 5 is longer than the length dimension A from the printed board 3 inside the device main body 2 on which the bearing portion 5 is mounted to the outer peripheral portion of the shaft portion 4a. The printed circuit board 3 on which the bearing unit 5 is mounted is fixed such that the dimension B of the bearing unit 5 is dimension A <dimension B.

Further, the provision of the elastic piece 5a on the bearing portion 5 makes it possible to maintain a state of being constantly pressed against a part of the shaft portion 4a regardless of the rotation angle of the antenna portion 1.

The pressing force can be freely set by securing the dimension A <the dimension B and changing the dimension B of the bearing 5.

With the above-described configuration, the energization of signals between the antenna unit 1 and the printed circuit board 3 held in the main body 2 is
The outer diameter of the shaft portion 4a can be reduced because the shaft portion 4a and the bearing portion 5 are always in pressure contact with each other, and the circular opening that is the insertion portion of the shaft portion 4a of the device main body 2 is provided. The same applies to the portion 6b.

Further, by mounting the elastic piece 5a of the bearing portion 5 so as to be parallel to the printed circuit board 3, the device body 2
When assembling, the shaft section 4a of the antenna section 1 and the printed circuit board 3 on which the bearing section 5 is mounted on the device main body 2 are arranged in parallel, and stable electrical connection is possible only by fixing the screws 7. Become.

Further, when the antenna portion 1 is rotated, the pressure contact force between the shaft portion 4a and the bearing portion 5 becomes a torque force when the antenna portion 1 rotates, so that a separate piece is used for the rotation of the antenna portion 1. Torque can be applied without
The workability and operability are improved, and the device main body 2 can be made compact, which is particularly effective as a portable wireless terminal that is originally required to be downsized.

(Embodiment 2) FIG. 5 is an exploded perspective view of a main part of a portable radio terminal according to a second embodiment of the present invention, and FIG. 6 is a cross-sectional view of a main part of the portable radio terminal. .

The portable radio terminal according to the second embodiment has a feature in the contact portion between the shaft portion 4a of the antenna portion 1 and the bearing portion 5 in the first embodiment.
As shown in FIGS. 5 and 6, the shaft portion 4a of the bearing portion 5
A concave portion 5c having a circumferential surface is formed on the elastic piece 5a that comes into contact with the outer peripheral portion 4c of the shaft portion 4a.
Are in pressure contact with each other, and the bearing 5 is in contact with the outer periphery 4c of the shaft 4a over the entire recess 5c.

With the above configuration, the outer peripheral portion 4c of the shaft portion 4a and the surface of the concave portion 5c of the elastic piece 5a of the bearing portion 5 come into contact with each other, so that the contact area increases, and the method of connecting the antenna portion 1 and the printed circuit board 3 is easy. Nevertheless, the reliability of the electrical connection can be improved.

(Embodiment 3) FIG. 7 is a longitudinal sectional view of a main part of a portable radio terminal according to a third embodiment of the present invention, and FIG. 8 is a cross-sectional view of a main part of the portable radio terminal.

The portable wireless terminal according to the third embodiment includes a bearing 5 for the printed circuit board 3 according to the first embodiment.
7 has a feature in the mounting configuration of FIG.
As shown in FIG. 8, a vertical rib 6 c is provided on the elastic piece 5 a of the bearing unit 5 mounted on the printed circuit board 3 inside the housing 6 of the device main body 2. The rib 6c of the housing 6 of the device main body 2 is configured such that the elastic piece 5a of the bearing 5 is a shaft 4a.
When the side face 5d of the bearing 5 is deformed in the direction D in a direction perpendicular to the elastic piece 5a, the side 5d of the bearing 5 is deformed.
To make contact with.

With the above structure, the ribs 6c provided inside the housing 6 of the device main body 2 prevent the side surface 5d of the bearing 5 from being deformed, and the bearing 5 and the printed circuit board caused by the deformation of the bearing 5 are formed. This is to reduce the load applied to the solder portion 11 which is the bonding portion of No. 3 and to improve the reliability of the electrical connection.

(Embodiment 4) FIG. 9 is an external perspective view of a bearing of a portable wireless terminal according to Embodiment 4 of the present invention.
0 is a side view showing a contact state between the coaxial receiving portion and the shaft portion.

The portable radio terminal according to the fourth embodiment has a feature in the contact structure between the bearing portion and the shaft portion in the first embodiment. That is, as shown in FIGS. A part of the outer periphery of the part 4a is provided with a bearing part 5
A hemispherical recess 4b is provided in a direction perpendicular to the contact with In addition, a part of the elastic piece 5a that comes into contact with the shaft portion 4a of the bearing portion 5 is divided into two parts, and one of them is provided with a hemispherical convex portion 5e as a fitting portion with the concave portion 4b on the outer peripheral portion of the shaft portion 4a. Configuration.

In the portable radio terminal constructed as described above, the antenna 1 has a certain torque value due to sliding between the outer peripheral portion of the shaft portion 4a and the elastic piece 5a of the bearing portion 5. Rotate. In this rotation, the hemispherical concave portion 4b provided on the shaft portion 4a and the hemispherical convex portion 5e provided on the elastic piece 5a of the bearing portion 5 are fitted or disengaged, so that the antenna portion 1 A click feeling can be given to the rotation. Therefore,
Improved operability can be achieved.

Note that one rotation angle of the antenna unit 1
Alternatively, when a click feeling is given to a plurality of rotation angles, the click feeling can be set by the angle of the shaft portion 4a and the number of the concave portions 4b. Further, the concave portion 4b and the convex portion 5e of the shaft portion 4a and the elastic piece 5a of the bearing portion 5 can be set in reverse.

[0034]

As is apparent from the above description, the present invention has an electrical conductivity that allows a signal to flow to the main body of the device.
And, an antenna unit having a rotatable cylindrical metal member shaft portion, and mounted on a printed circuit board disposed in the device main body, in a state of being constantly pressed against a part of the shaft portion of the antenna portion The antenna unit and the device are provided regardless of the rotation angle of the antenna unit by providing a bearing unit having electrical conductivity through which a signal between the antenna unit and the printed circuit board in the device main body can be conducted through the shaft unit. Electrical connection with the main unit is easy, a constant torque value can be given when the antenna of the main unit rotates, and the components and shape can be simplified, and the main unit can be made compact. Having.

Further, by providing a concave portion having a circumferential surface in a part of the bearing part which comes into contact with a part of the shaft part, the contact area between the shaft part and the bearing part can be increased.
Furthermore, by providing a rib that supports a part of the bearing inside the housing of the device body, the load on the solder part can be reduced due to the contact between the shaft and the bearing in the pressed state, and the electrical reliability is improved. It has the effect of improving.

Furthermore, by providing a concave portion in a part of the shaft portion and a convex portion fitted in the concave portion in a part of the bearing portion, a click feeling is given when the antenna portion rotates. This has the effect of improving operability.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a portable wireless terminal according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the portable wireless terminal.

FIG. 3 is a longitudinal sectional view of a main part of the portable wireless terminal.

FIG. 4 is a cross-sectional view of a main part of the portable wireless terminal.

FIG. 5 is an exploded perspective view of a main part of the portable wireless terminal according to the second embodiment of the present invention.

FIG. 6 is a cross-sectional view of a main part of the portable wireless terminal.

FIG. 7 is a vertical sectional view of a main part of a portable wireless terminal according to a third embodiment of the present invention.

FIG. 8 is a cross-sectional view of a main part of the portable wireless terminal.

FIG. 9 is an external perspective view of a bearing of a portable wireless terminal according to a fourth embodiment of the present invention.

FIG. 10 is a side view showing a contact state between the coaxial receiving portion and the shaft portion.

FIG. 11 is an exploded perspective view of a conventional portable wireless terminal.

FIG. 12 is a longitudinal sectional view of a main part of the portable wireless terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna part 2 Device main body 3 Printed circuit board 4a Shaft part 4b Concave part 5 Bearing part 5a Elastic piece 5c Concave part 5d Side part 5e Convex part 6 Housing 6a Side part 6b Opening 6c Rib 7 Screw 11 Solder part

Claims (4)

[Claims] 1. A portable wireless terminal capable of wirelessly communicating voice, character, graphic data, and the like, having an electrically conductive and electrically rotatable cylindrical shape capable of supplying a signal to a device body. An antenna portion having a shaft portion made of a metal member, and an elastic piece mounted on a printed circuit board arranged in the device main body, having an elastic piece that is constantly pressed against a part of the shaft portion, and an antenna portion through the shaft portion. A portable wireless terminal comprising: a bearing portion made of a metal member having electrical conductivity capable of supplying a signal to a printed circuit board in the main body. 2. The portable wireless terminal according to claim 1, wherein the bearing has a recess having a circumferential surface in contact with the cylindrical shaft in a part of the elastic piece. 3. The portable wireless terminal according to claim 1, wherein the device body includes a rib for supporting a part of the bearing portion inside. 4. The shaft portion has a hemispherical concave portion on a part of the outer periphery, and the bearing portion has an elastic piece whose contact surface with the shaft portion is divided into two, and one of the divided portions is fitted with the concave portion. 2. The portable wireless terminal according to claim 1, further comprising a hemispherical convex portion.