JPH10322116A - Portable radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a partable radio equipment improve in the operability, capable of drawing and storing an antenna out of or into the main body of the radio equipment without using both hands based on the operations of a draw-out switch. SOLUTION: The engaged state is released between a fixed pawl 8 of an antenna 4 and a stopper 10 via the operation of a draw-out switch 13. Then the antenna 4 is dawn upwards out of a store part 6 by the energizing force of a spring 7. A draw-out switch 13 is energized toward D by a spring 10b to make the pawl 8 touch a lock member 10a to keep the antenna 4 at the inside of the part 6 against the energizing force of the spring 7, when the antenna 4 is pushed inside. Thus, the antenna 4 can be stored in the part 6 by one hand. Furthermore, the antenna can be drawn out automatically, when the signal intensity detected by a received signal intensity detection part is smaller than a prescribed level. As a result, the transmission characteristic of the antenna 4 can be satisfactorily utilized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable radio device such as a portable telephone provided with an antenna (antenna) capable of being pulled out, and more particularly to a portable radio device provided with an automatic antenna pull-out mechanism or an automatic storage mechanism. is there.

[0002]

2. Description of the Related Art Conventionally, it has been known that a whip type antenna is used in a portable radio device such as a portable telephone in consideration of portability. And, in order to ensure sufficient transmission characteristics, the shape is often configured to be drawn out during use.

[0003] In such a portable radio device, when the antenna is pulled out, a configuration is used in which the body of the portable radio device is supported with one hand and the antenna is pulled out with the other hand. When the antenna is stored in the main body of the portable wireless device, a configuration is used in which the main body of the portable wireless device is supported with one hand and the antenna is held with the other hand.

[0004] Further, when the transmission characteristics are poor, it is left to the user to decide whether to draw out the antenna.

[0005]

As described above, in the conventional portable radio device, when the antenna is pulled out or stored, both hands must be used, which is inconvenient. . Further, since it is left to the user to determine whether or not to pull out the antenna, there is a problem that the antenna is used without sufficiently drawing out the transmission characteristics.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is possible to draw out or store an antenna without using both hands, and it is excellent in usability. Another object of the present invention is to provide a portable wireless device capable of sufficiently extracting the transmission characteristics of an antenna by automatically extracting the antenna based on the received signal strength.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention relates to a portable wireless device having an antenna which can be pulled out from a portable wireless device main body. And an antenna extracting mechanism for extracting the antenna from the main body of the portable wireless device based on the operation of the switch.

In the portable wireless device 1 shown in FIG.
By operating the switch 3, the antenna 4 is moved to the portable radio unit 2.
An antenna withdrawal / storage mechanism 5 that can be further pulled out and stored is provided, and this antenna withdrawal / storage mechanism 5 constitutes an antenna withdrawal mechanism.

In the portable radio 1A shown in FIG. 2, the engagement between the fixed claw 8 provided on the antenna 4 and the stopper 10 is released by operating the drawer switch 13, and the antenna 4 is spring-loaded. 7 is pulled out from the storage section 6 by the urging force. Here, a spring 7 for urging the antenna 4 upward when the antenna 4 is stored in the storage section 6, a fixed claw 8 provided near the base of the antenna 4, and the antenna 4 engaged with the fixed claw 8 to store the antenna 4 in the storage section 6. The stopper 10 housed and maintained in 6 constitutes an antenna drawing mechanism. The stopper 10 has a predetermined length (arrow C) with respect to the portable wireless device main body 2A.
D, that is, the length required to remove the stopper from the fixed claw), the drawer switch 1 provided to be able to move forward and backward.
3, a frame-shaped locking member 1 which surrounds the storage section 6 and the antenna 4 and whose tip abuts on the upper surface of the fixed claw 8 when the switch 13 is retracted so that the antenna 4 is stored and maintained.
0a, and a switch urging spring (coil spring) 10b for urging the drawer switch 13 outward from the portable wireless device main body 2.

Further, the present invention relates to a portable wireless device having an antenna which can be pulled out of the portable wireless device main body, and a switch provided on the portable wireless device, and is drawn out of the portable wireless device main body based on the operation of the switch. And an antenna storing mechanism for storing the antenna in the portable wireless device main body.

In the portable wireless device 1 shown in FIG.
By operating the switch 3, the antenna 4 is moved to the portable radio unit 2.
An antenna drawer / storing mechanism 5 that can be further pulled out and stored is provided, and the antenna drawer / storing mechanism 5 constitutes an antenna storing mechanism.

In the portable radio 1B shown in FIG. 3, the motor 9 is driven through the motor control circuit 16 by operating the drawer / retract switch 23 to rotate the pulley 11 by a predetermined amount. The wire 14, one end of which is attached to the tip of the antenna 4, is wound up by the pulley 11, so that the antenna 4 is stored in the storage section 6. Here, the motor 9, the pulley 11, the wire 14, and the motor control circuit 1
6 constitutes an antenna storing mechanism.

Further, in the portable wireless device 1C shown in FIG. 4, a biasing spring (coil spring) 7 is provided between the bottom surface 4a of the antenna 4 and the bottom surface 6a of the storage section 6, so that the wire 14 is provided. The antenna 4 can be pulled out of the storage section 6 (the main body of the portable wireless device) by rotating the motor 9 in the opposite direction to that during storage via the motor control circuit 16 without providing rigidity to the antenna. By driving the electric motor 9 by a predetermined amount, the antenna 4 can be stored in the storage portion against the spring force.
, A pulley 11, a wire 14, and a motor control circuit 16
And constitute an antenna storage mechanism.

Further, according to the present invention, in a portable wireless device provided with an antenna which can be pulled out from the portable wireless device main body, a switch provided on the portable wireless device and an antenna connected to the portable wireless device main body based on the operation of the switch. An antenna extracting mechanism for extracting the antenna and an antenna storing mechanism for storing the antenna extracted from the main body of the portable wireless device based on the operation of the switch in the main body of the portable wireless device.

In the portable wireless device shown in FIG. 3, although the wire 14 has a certain rigidity, that is, the wire 4 is soft enough to be wound around the pulley 11,
If a rigidity with a small amount of deformation is provided with respect to a force for further drawing out, the antenna 4 can be drawn out by rotating the motor in a direction opposite to the rotating direction at the time of storage. According to the configuration, as described above, the electric motor 9, the pulley 11, the wire 14, and the electric motor control circuit 16 can form an antenna storing mechanism and also form an antenna drawing mechanism, and have both of them. It will be.

Further, in the portable wireless device 1C shown in FIG. 4, the rigidity of the wire 14 is increased by providing a biasing spring 7 between the bottom surface 4a of the antenna 4 and the bottom surface 6a of the storage section 6. Without providing the antenna, the antenna 4 can be pulled out from the storage unit 6 (the main body of the portable wireless device) by rotating the motor 9 in the opposite direction to that when the antenna 4 is stored. In this case, the motor 9, the pulley 11, and the wire 14 And the motor control circuit 16 constitute an antenna storage mechanism,
An aerial drawing mechanism can be configured, and both the storage mechanism and the drawing mechanism are provided.

Further, the present invention relates to a portable wireless device provided with an antenna which can be pulled out from the portable wireless device main body.
As shown in FIG. 2, a received signal strength detector 30 for detecting the strength of a received signal, a received signal strength setting unit 31 for setting a desired received signal strength, and a reception signal strength detector 30 Received signal strength comparator 3 that compares the strength with the set strength set in received signal strength setter 31
An antenna withdrawal / storage mechanism 5D as an antenna withdrawal mechanism for extracting the antenna 4 from the portable wireless device main body when the received signal strength is smaller than the set strength based on the output of the received signal strength comparator 32. It is a thing.

Further, according to the present invention, when the time during which the received signal strength falls below a predetermined value continues for a predetermined time or more, the antenna 4
Is further provided with an antenna storing mechanism for storing the inside of the portable wireless device main body. Here, the antenna storage mechanism is constituted by an antenna extraction / storage mechanism 5D also provided with an antenna extraction mechanism as shown in FIG. The antenna withdrawal / storage mechanism 5D includes a control circuit 33. When the antenna is pulled out, the state in which the reception intensity from the reception signal strength detection unit 30 has become smaller than a predetermined value has continued for a predetermined time or more ( The antenna 4 is housed in the portable wireless device main body by determining that the reception has been completed.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 2 is a configuration diagram showing the portable wireless device 1A according to the first embodiment. In the portable radio 1A, the main body 2A is provided with a storage section 6 for storing the antenna 4 movably in its length direction. A fixed claw 8 is provided near the base of the antenna 4. The fixed claw 8 is the antenna 4
Inclined surface 8 projecting from the base side to the tip side
a and a vertical projecting surface 8b formed at the upper end of the inclined surface 8a and perpendicular to the axial direction of the antenna 4. The fixed claw 8 is provided such that the distal end of the fixed claw 8 protrudes outward from the storage section 6 through a slit provided in the length direction of the storage section 6.

A spring 7 is provided between the bottom 4a of the antenna 4 and the bottom 6a of the housing 6. The spring 7 biases the antenna 4 upward when the antenna 4 is housed (moved in the direction of arrow B).

A drawer switch 13 is provided at a predetermined position of the portable wireless device main body 2A so as to be movable forward and backward with respect to the side surface of the main body 2A. This drawer switch 13 has a fixed claw 8
A stopper 10 is provided which engages with the vertical projecting surface 8b of the antenna 4 to restrict the upward movement of the antenna 4. The stopper 10 has one end fixed to the drawer switch 13, a frame-shaped locking member 10 a surrounding the storage section 6 and the antenna 4,
A spring 10b is provided between the drawer switch 13 and the portable wireless device main body 2A, and urges the drawer switch 13 outward from the side surface of the main body 2A.

In the above configuration, the antenna 4 is housed in the storage section 6.
When the antenna 4 is retracted, the antenna 4 is pushed downward (in the direction of arrow B) against the elastic force of the spring 7, so that the inclined surface 8a of the fixed claw 8 moves the locking member 10a of the stopper 10 in the direction of arrow C. When the locking member 10a is disengaged from the inclined surface 8a by further pushing, the spring 10b is extended to move the locking member 10a outwardly of the main body 2A (direction of arrow D).
And the locking member 10a is engaged with the vertical protruding surface 8b. By the action of the stopper 10, the antenna 4 is fixed in the storage section 6 and is stored and maintained. In this state, the spring 7 is in a compressed state.

Next, when the antenna 4 is to be pulled out from the main body 2A of the portable wireless device, the pull-out switch 13 is pushed in the direction of the main body 2A (in the direction of arrow C) to engage the locking member 10a of the stopper 10 with the fixed claw 8. Cancel the match. When the engagement is released, the spring 7 is extended by its elastic force, and the antenna 4
Is protruded outwardly (in the direction of arrow A) from the storage section 6 and pulled out.

According to such a configuration, the antenna 4 can be pulled out from the portable radio unit main body 2A only by the operation of pushing the pull-out switch 13, so that the operability is excellent.

Embodiment 2 FIG. 3 is a configuration diagram showing a portable wireless device 1B according to the second embodiment. In FIG.
2 denote the same or corresponding components as in FIG. 2, and a description thereof will not be repeated. 23 is the portable radio unit 2
B, a drawer / storage switch formed of an electrical switch provided at a predetermined position, 16 is connected to a drawer / storage switch 23, and a motor control circuit for controlling driving of the motor, and 9 is connected to the motor control circuit 16. Motor. The drawer / storing switch 23 has two modes: a case where the antenna 4 is pulled out and a case where the antenna 4 is housed.

A pulley 11 is provided on the output shaft of the electric motor 9, and one end of a wire 14 is attached to the pulley 11. The other end of the wire 14 is attached to the tip of the antenna 4. The wire 14 has a certain rigidity, that is, soft enough to be wound around the pulley 11, but has a rigidity with a small deformation amount with respect to a force for pulling out the antenna 4 from the storage section 6.

In the above configuration, the antenna 4 is pulled out /
When the storage switch 23 is operated to set, for example, a mode for storing the antenna, the motor control circuit 16 drives the motor 9 to rotate the pulley 11. When the pulley 11 rotates, the wire 14 is wound around the pulley 11, and the antenna 4
Is stored in the storage section 6 from the drawn state shown in FIG.

On the other hand, when the antenna 4 is retracted and the drawer / retract switch 23 is operated to set the antenna to a mode in which the antenna is pulled out, the motor control circuit 16 operates in the opposite direction to the case where the antenna 4 is retracted. The electric motor 9 is driven. In this case, the wire 14 wound around the pulley 11
Is unfolded and extends upward due to its rigidity, and accordingly, the antenna 4 is pulled upward.

Thus, the portable radio 1B according to the second embodiment
According to this, the antenna 4 can be pulled out and stored by operating the drawer / storage switch 23.

Embodiment 3 FIG. 4 is a configuration diagram showing a portable wireless device 1C according to the third embodiment. 4, the same reference numerals as those in FIG. 3 denote the same or corresponding components as in FIG. 3, and a description thereof will be omitted. In FIG. 4, reference numeral 7 denotes a biasing spring provided between the bottom surface portion 4a of the antenna 4 and the bottom surface portion 6a of the storage section 6 in the portable wireless device main body 2C.
The spring 7 urges the antenna 4 upward when the antenna 4 is stored. Then, the drawer / storing switch 23 is set to the drawer mode, and the wire 14 is connected to the pulley 11.
When released, the antenna 4 is pushed upward by the urging force of the spring 7, and the antenna 4 is pulled out of the storage section 6.

According to such a configuration, the antenna 4 is pulled out by the switch operation by the action of the spring 7 even if the wire 14 does not have rigidity as in the second embodiment.

Embodiment 4 FIG. FIG. 5 is a block diagram showing a portable wireless device according to the fourth embodiment. Embodiment 4
A portable wireless device that automatically pulls out or stores the antenna 4 by detecting the reception state of the antenna 4 is shown.

The antenna 4 is connected to a received signal strength detector 30 for detecting the strength of the received signal. On the output side of the received signal strength detector 30, a received signal strength comparator 32 and an antenna lead-out / storage mechanism 5D are provided. It is connected. Further, the portable wireless device is provided with a received signal strength setting unit 31 for setting a desired strength of the received signal, and a received signal strength comparator 32 compares the strength of the received signal with the set strength. Control circuit 33 provided in antenna drawer / storing mechanism 5D
Is based on the output of the received signal strength detection unit 30, when the strength of the received signal is greater than or equal to a predetermined value and is determined to be in the receiving state, the signal from the received signal strength comparator 32 is If it is determined that the received signal strength is smaller than the set strength, the antenna extracting / retracting mechanism is operated and the antenna 4 is extracted.

On the other hand, after the antenna 4 is pulled out under the above-described conditions, the control circuit 33 determines that the reception signal strength has become equal to or less than the predetermined value for a predetermined time or more (that is, it is determined that the reception state has ended). In this case, the antenna 4 is stored by operating the antenna withdrawal / storage mechanism.

According to the portable wireless device of the fourth embodiment,
The user does not need to perform any operation for pulling out or storing the antenna. In addition, the use of the antenna can be automatically determined without leaving it to the user, and the transmission characteristics of the antenna can be sufficiently obtained.

[0036]

As described above, according to the present invention, the antenna for pulling out or storing the antenna of the portable radio is provided based on the switch operation, so that the usability of the portable radio is excellent. It will be.

Further, according to the present invention, the antenna is automatically pulled out or stored based on the strength of the received signal, so that the user does not need to perform any operation for pulling out or storing the antenna. It will be excellent without permission. Further, it is possible to automatically determine the use of the antenna without relying on the user's judgment, and to sufficiently extract the transmission characteristics of the antenna.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a portable wireless device of the present invention.

FIG. 2 is a configuration diagram showing the first embodiment of the present invention.

FIG. 3 is a configuration diagram showing a second embodiment of the present invention.

FIG. 4 is a configuration diagram showing a third embodiment of the present invention.

FIG. 5 is a configuration diagram showing a fourth embodiment of the present invention.

[Explanation of symbols]

 1, 1A, 1B, 1C Portable wireless device 2, 2A, 2B, 2C Portable wireless device main body 3 Switch 4 Antenna 5, 5D Antenna withdrawal / storage mechanism 6 Storage section 7 Spring 8 Fixed claw 9 Motor 10 Stopper 11 Pulley 13 Pullout Switch 16 Motor control circuit 23 Pull-out / storage switch 30 Received signal strength detector 31 Received signal strength setter 32 Received signal strength comparator 33 Control circuit

Claims (5)

[Claims] 1. A portable wireless device provided with an antenna which can be pulled out from the portable wireless device main body. A switch provided on the portable wireless device, and the antenna is pulled out from the portable wireless device body based on an operation of the switch. A portable wireless device comprising an antenna drawing mechanism. 2. A portable wireless device provided with an antenna which can be pulled out from the portable wireless device main body, wherein the antenna is pulled out from the portable wireless device main body based on an operation of the switch provided on the portable wireless device. An antenna storing mechanism for storing an antenna in the main body of the mobile wireless device, the mobile wireless device comprising: 3. A portable wireless device provided with an antenna that can be pulled out from the portable wireless device main body, wherein a switch provided on the portable wireless device and the antenna are pulled out from the portable wireless device body based on an operation of the switch. A portable wireless device comprising: an antenna extracting mechanism; and an antenna storing mechanism for storing an antenna drawn from the portable wireless device main body based on an operation of the switch in the portable wireless device main body. 4. A portable wireless device having an antenna which can be pulled out from a portable wireless device main body, a received signal strength detector for detecting the strength of a received signal, and a received signal strength setting device for setting a desired received signal strength. An antenna extracting mechanism for extracting the antenna from the main body of the portable wireless device when the intensity of the reception signal detected by the reception signal intensity detection unit is smaller than the intensity set in the reception signal intensity setting device. A portable wireless device characterized by the following. 5. An antenna accommodating mechanism for accommodating an aerial drawn from the main body of the portable radio unit in the main unit of the portable radio unit when a time when the received signal strength becomes equal to or less than a predetermined value continues for a predetermined period or more. The portable wireless device according to claim 4, comprising: