JP2821333B2 - Mobile phone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone, and more particularly to a portable telephone having a folding structure.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a portable telephone of this type has a first housing 6 provided with an antenna 14 and a receiver 15, and a second housing provided with a transmitter 16 and a dial button 17.
Are connected by a hinge 11, a radio circuit is mounted in the first housing 6, and a control circuit is mounted in the second housing 7. The connection of the electric signals between the first and second housings 6 and 7 is performed by passing the flexible substrate 8 through a slit-shaped hole provided at the center of the hinge 11. As an external interface,
For example, connectors 12 and 13 for power supply in a car and connection to an on-vehicle antenna are provided on the side surface 10 of the second housing 7 and the side surface 9 of the first housing 6, respectively.

[0003]

In this conventional portable telephone, the connector for the electric signal and the connector for the antenna signal are separately provided in the first and second housings, so that it is troublesome to connect a vehicle-mounted adapter or the like. In addition, there is a problem that the handling of the connection cable or the like becomes a hindrance and the usability is deteriorated. To solve this, first
An electrical signal contact on either the housing or the second housing
Provide a connector that combines antenna signal contacts.
Between the first housing and the second housing.
Need to pass cables for high frequency signals in addition to the PCB
Occurs. Furthermore, when handling high frequency signals,
Ground potential must be completely the same (ground potential changes).
If it moves, it will cause noise),
It is difficult to achieve the same potential depending on the wire with high resistance.
Yes, it is necessary to connect with low resistance cable
There was a problem. At this time, a conventional mobile phone as shown in FIG.
In the configuration of the mobile phone, the slip provided at the center of the hinge
Through the thin flexible board
Can be run, but can pass thick cables
Did not. In general, cables are flexible boards.
The cable is open and closed by opening and closing the mobile phone housing.
Had the problem of being cut off. SUMMARY OF THE INVENTION
It is made by focusing on the point.
Cable with a certain thickness at the same time
Providing a configuration of a hinge portion through which the bull can pass
It is.

[0004]

A portable telephone according to the present invention comprises:
It comprises a first front case and a first rear cover.
A first housing, a second front case and a second rear
The hinge and the second housing composed of the cover
The first front case is rotatably connected to the first case;
An arc-shaped first curved surface portion provided at an end of
Arc-shaped second curved portion provided at the end of the rear cover
Are engaged with the end of the first housing and communicate with the end of the first housing.
An end of the second housing, forming a cylindrical first cavity;
Has a substantially cylindrical second hollow portion communicating with the housing.
And the first cavity and the second cavity are adjacent to each other.
The electric circuit in the first housing is coaxially arranged with the electric circuit in the first housing.
Flexible board for connecting to an electric circuit in the second housing
Along the inner diameter of the first cavity and the second cavity
Wrapped in a spiral shape and passed
Within the diameter of the flexible board
Existing cables are extended .

[0005]

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

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is an exploded view showing a structure of a hinge portion of the embodiment.

Referring to FIGS. 1 and 2, this portable telephone has a first housing 1 having an antenna 14 and a receiver 15.
A connection unit 5a for receiving signals and power from outside, a connector unit 5b for receiving antenna signals from outside, and the transmitter 1
6 and a second housing 2 having a dial button 17
The hinge portions 1-3 and 2-3 are configured to be rotatable with respect to each other and foldable.

The first housing 1 and the second housing 2 are respectively composed of front cases 1-1 and 2-1 and rear covers 1-2 and 2-2, and both ends of the front cases 1-1 and 2-1. The two parts are rotatably fastened by hinge parts 1-3, 2-3 provided on the parts. At the center, hinges 1-3, 2
The hinge semicircle portions 1-4 and 2-4 of the receiving portion, which form an approximately half circle of the shaft diameter of -3, are provided, and the hinge semicircle portion 1 of the remaining semicircle is provided.
By covering the rear covers 1-2 and 2-2 on which -5 and 2-5 are formed, an appearance as one axis is obtained.

[0009] full Rekishiburu substrate 3 hinge semicircle for conducting electrical signals of the circuit unit mounted in the center of the hinge semicircle 1-5 and 2-5 to the first housing 1 and second housing 2 The parts 1-5, 2-5 are wound in a spiral shape along the inner diameter, and the coaxial cable 4 for transmitting an antenna signal from the outside is passed through the center of the winding diameter of the flexible substrate 3 in a substantially Z-shape. Thereby, both the external power and the electric signal and the antenna signal can be input from the connection portion 5a and the connector 5b of the external interface that are integrated on the same side surface of the second housing 2.

Since the flexible substrate 3 is wound in a single spiral, it can absorb tension and slack in folding in the hinge semicircular portions 1-4 and 2-4, and twist the coaxial cable 4. Can also be absorbed. In addition, coaxial cable 4
In order to ensure the reliability of the bent portion, a certain large curvature is required. However, a structure in which the central portion of the flexible substrate 3 is passed provides a sufficient bending radius to the hinge shaft diameter.

Although not shown, the other end of the coaxial cable 4 is connected to a fixed portion of the antenna 14.

[0012]

As described above, the present invention is directed to the first embodiment.
A first case composed of a front case and a first rear cover
And a second front case and a second rear cover.
Can be rotated by the hinge with the second housing composed of
At the end of the first front case.
An arc-shaped first curved surface portion provided;
Engage with a second arcuate curved surface provided at the end of the bar
A substantially cylindrical shape communicating with the housing at the end of the first housing.
A first cavity is formed, and an end of the second housing is provided at the end of the second housing.
A second hollow portion having a substantially cylindrical shape communicating with the body;
The first cavity and the second cavity are coaxially arranged adjacent to each other.
An electric circuit in the first housing and the second housing
The flexible substrate connecting the electric circuit in the first
Spiral along the inner diameter of the cavity and the second cavity
And wrap it around the spiral.
The diameter of the Bull board, cable inherent straddling both bodies
The Rukoto extended Bull, flexible substrate and
Cables other than this flexible board are installed in both housings
Therefore, the interface with the outside can be collected in the second housing. Thus, when used in combination with options such as an in-vehicle adapter, the connection cable does not become complicated, so that the connection is facilitated and the usability can be improved as compared with the related art. Also fold
When bending, pulling or sagging the cable at the time of
Can be absorbed in
Cables are not cut.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded view showing a configuration of a hinge portion of the embodiment.

FIG. 3 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st housing 2 2nd housing 3 Flexible board 4 Coaxial cable 5a Connection part 5b Connector part 14 Antenna 15 Receiver 16 Transmitter 17 Dial button 1-1, 2-1 Front case 1-2, 2-2 Rear cover 1-3, 2-3 Hinge 1-4, 1-5, 2-4, 2-5 Hinge semicircle

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hitoshi Masuda 300-18 Toyohara, Motohara, Kamikawa-cho, Kodama-gun, Saitama Prefecture (56) References JP-A-59-135959 (JP, A) JP-A-63-288549 (JP, A) JP-A-64-89845 (JP, A) JP-A-4-307843 (JP, A) Japanese Utility Model Publication No. 58-90762 (JP, U)

Claims (4)

(57) [Claims] 1. A first front case and a first rear cover.
A first housing composed of a
And a second housing made up of a second rear cover
The first front case is rotatably connected by a hinge, and is provided at an end of the first front case.
A first curved surface portion and an end portion of the first rear cover;
The second curved surface of the arc shape is engaged with the first
A substantially cylindrical first hollow portion communicating with the housing is formed at an end portion.
And, wherein an end portion of the second housing substantially cylindrical which betrayer the casing
Forming a second cavity, the first cavity and the second cavity;
Are arranged coaxially adjacent to each other, and an electric circuit in the first housing and an electric circuit in the second housing are provided.
A flexible substrate for connecting a circuit to the first hollow portion;
And spirally winding along the inner diameter of the second cavity
A flexible substrate that is passed through and spirally wound
Within the diameter of the
A portable wireless telephone characterized by being located. 2. The first housing of the handset or transmitter.
The second housing comprises the other.
The portable wireless telephone according to claim 1, wherein 3. The hinge portion according to claim 1, wherein the first and second hinge portions are connected to each other.
Claims: Arranged on both sides of the axis of the cavity
The mobile wireless telephone according to claim 1 or 2. 4. The first housing includes a receiver and an antenna.
And the second housing has a transmitter and an external connection.
A cable connecting the antenna and the connection.
The mobile phone according to claim 1, wherein the mobile phone is connected to a connection part.
Wireless telephone.