JPH03234126A - Portable radio equipment - Google Patents

Abstract

PURPOSE:To allow the equipment to receive an incoming call even in the folded state with a small size, to enhance the operability at talking and to improve the portable performance by constituting the equipment with two large and small cases and adopting the structure for a stationary wire antenna provided to the smaller case such that the antenna is hidden in the larger case in the folded state. CONSTITUTION:The relations of L2>L1 and LW<=L2-L1 exists, where L1 is a length from a connection part 5 to an end of a radio equipment case 1, L2 is a length from the connection part 5 to an end of other radio equipment case 2 and LW is the length of a wire antenna 3. The wire antenna 3 is fitted to the smaller case 1 of the folded type portable radio equipment comprising two large/small cases 1, 2 whose length differs from each other and the wire antenna is structured to be hidden in the larger case in the folded state to attain small size, high antenna performance and excellent portable performance.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a foldable portable wireless device that is small in size, has high antenna performance, and has good portability.

(Prior Art) FIG. 4 is a diagram showing an example of a conventional foldable portable radio device. In the figure, 1 is a part of the radio casing, 2 is another part of the radio casing, 3 is a linear antenna, 5 is a connecting part between part 1 and other part 2 of the radio casing, and 6 is a part of the radio casing. telephone receiver, 7
8 is a display section, 8 is an operation section, and 9 is a transmitter.

In the portable radio shown in the figure, a part 1 of the radio casing where a receiver 6 etc. is attached is longer than the other part 2 of the radio casing where a transmitter 9 is attached. This is a portable radio device with a linear antenna 3 attached to the top surface of a portion 1. When this portable radio device is going to make a call, the other portion 2 of the radio device housing with a transmitter 9 attached It is a format that can be opened and used.

Further, the linear antenna 3 can be of a fixed type or a retractable type.

FIG. 5 is a diagram showing another example of a conventional foldable portable radio device. In the portable radio shown in the figure, a part 1 of the radio casing to which the receiver 6 and the like are attached and another part 2 of the radio casing to which the transmitter 9 is attached are approximately the same length. This is a portable radio device with a linear antenna 3 attached to the top surface of a portion 1 of the radio device housing. Furthermore, the linear antenna 3 can be of a fixed type or a retractable type.

(Problem to be Solved by the Invention) However, in any of the above conventional portable radio devices, when the portable radio device is folded and carried around, the antenna retractable type does not work as shown in Fig. 4(b) or Fig. 5(b). like,
Since a storage mechanism and a storage space (not shown) are required inside part 1 of the radio housing, it becomes mechanically complicated and causes failure, and it also puts pressure on internal circuit components, making it difficult to downsize the radio. It will be a hindrance. In addition, when the linear antenna is retracted, the antenna gain is greatly degraded, making it impossible to receive incoming calls (and the service quality is also very poor). It was necessary to open the other part 2 of the radio housing and pull out the linear antenna 3, which made the operability during calls poor.On the other hand, the fixed linear antenna is difficult to fold and carry. As shown in Figure 4 (C) or Figure 5 (C), the linear antenna is always protruding from the housing, so by folding it in half, the intention of making the portable radio device smaller is being avoided. In other words, all conventional foldable portable radios have a receiver attached to the main body, and the transmitter side part, which is smaller or the same size as the main body, opens out. In addition, the antenna was attached to the main body.For this reason, the antenna retractable type is prone to failure, the radio cannot be made smaller, the antenna cannot be received when the antenna is retracted, and the operability during calls is poor. On the other hand, the fixed linear antenna has the disadvantage of
The drawback was that it was not very portable.

The present invention is intended to solve these drawbacks, namely, that conventional foldable portable radios cannot be made smaller, cannot receive incoming calls when the antenna is stowed, have poor operability when making calls, and are very poor in portability. The purpose of this invention is to provide a foldable portable wireless device that is small, has high antenna performance (and has good portability), and eliminates these drawbacks.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes two radio casings that are connected to each other at a connecting portion, and an end of one of the radio casings opposite to the connecting portion. In a portable radio device that is foldable by being bent at the connection portion, the length from the connection portion to the end of one of the radio device casings is L1, When the length from the connection part to the end of the other radio device casing is L2, and the length of the linear antenna is LW, L2
>L1 and LW≦L2−Ll.

(Function) According to the present invention having the above-described configuration, a linear antenna is attached to the smaller casing of a foldable portable radio device consisting of two casings of different lengths, a large casing and a small casing, By having a structure where the linear antenna is hidden in the larger housing when folded, it is compact and has high antenna performance.
It also aims to improve portability.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a diagram showing a first embodiment of the present invention. The portable radio shown in the figure has a fixed linear antenna with an open receiver-side casing. , 3 is a linear antenna, 4 is a groove cut in the other part 2 of the radio housing, 5
1 is a connecting portion between part 1 and other part 2 of the radio housing, 6 is a receiver, 7 is a display section, 8 is an operation section, and 9 is a transmitter.

In the portable radio shown in the figure, a part 1 of the radio casing to which the receiver 6 is attached is smaller than the other part 2 of the radio casing to which the transmitter 9 and the like are attached. This is a portable radio device in which a linear antenna 3 is attached to the top surface of a portion 1. When trying to make a call using the portable radio device of this embodiment, the handset 6
It is used by opening part 1 of the radio case with the mark attached.

When the portable radio of this embodiment is to be folded and carried, a fixed linear antenna is inserted into the groove 4 of the other part 2 of the radio housing, as shown in FIGS. 1(b) and 1(C). 3 is stored. Therefore, there is no need for a storage mechanism or storage space inside the housing, there is no cause for mechanical failure of the antenna, and there is no pressure on internal circuit components that impedes miniaturization of the radio device. In addition, since the linear antenna is not stored, the antenna reception state does not change even when folded, so the antenna gain is large (there is no deterioration, so you can receive calls even when folded. Now, when you want to make a call, if you open the part l of the radio housing where the receiver 6 is attached, the linear antenna 3 will also come out at the same time.
The operability during calls is also very good.Furthermore, even though it has a fixed linear antenna, it can be folded so that the antenna does not protrude outside, making it very portable.

That is, by adopting the configuration of this embodiment, a foldable portable wireless device that is small, has high antenna performance (and is more portable) is realized.

Also, it is not necessary to cut the groove 4 in the other part 2 of the radio case (the linear antenna 3 hits the part 1 of the radio case when the portable radio is folded). ,
Any structure is sufficient as long as the antenna is not damaged.

FIG. 2 is a diagram showing a second embodiment of the present invention. The portable radio shown in the same figure has a housing on the transmitter side that is equipped with a fixed linear antenna. other parts, 3 is a linear antenna, 4 is a groove cut in the other part 2 of the radio housing, 5 is a linear antenna;
1 is a connecting portion between part 1 and other part 2 of the radio housing, 6 is a receiver, 7 is a display section, 8 is an operation section, and 9 is a transmitter.

In the portable radio shown in the figure, a part 1 of the radio casing to which the transmitter 9 is attached is smaller than the other part 2 of the radio casing to which the receiver 6 and the like are attached. This is a portable radio device with a linear antenna 3 attached to the bottom of a portion 1. In other words, when trying to make a call using the portable wireless device of this embodiment,
It is used by opening the part 1 of the housing to which the transmitter 9 is attached.

When the portable radio of this embodiment is folded and carried around, the fixed linear antenna 3 is housed in the groove 4 of the other part 2 of the radio housing, as shown in FIG. 2(b). . In this case as well, the effect is similar to that of the first embodiment, and by configuring the structure as in this embodiment, a foldable portable radio device that is small, has high antenna performance, and is highly portable can be realized. be done.

Further, as in the first embodiment, any structure may be used as long as the antenna is not damaged by hitting the part 1 of the radio device housing.

FIG. 3 is a diagram showing a third embodiment of the present invention. The portable radio shown in the same figure has two fixed linear antennas attached to the receiver side of the casing for diversity reception.In the figure, 1 is a part of the radio casing, is the other part of the radio housing, 3.3' is the linear antenna, 4.4
° is a groove cut in the other part 2 of the radio housing, 5 is the connecting part between part 1 and other part 2 of the radio housing, 6 is the receiver;
7 is a display section, 8 is an operation section, and 9 is a transmitter. In the portable radio shown in the figure, a part 1 of the radio casing to which the receiver 6 is attached is smaller than the other part 2 of the radio casing to which the transmitter 9 etc. are attached. This is a portable radio device in which linear antennas 3, 3'' are attached to the top surface of a portion 1.When trying to make a call using the portable radio device of this embodiment, the radio device housing with the receiver 6 is In the format where part 1 is opened and used,
The two linear antennas 3, 3° are fixed, and the structure is the same as that of the first embodiment except for the number of antennas. When folding and carrying the portable radio of this embodiment, as shown in FIGS. 3(b) and 3(c), the other parts of the radio
A fixed linear antenna 3, 3° is housed in the groove 4, 4°. This case also has the same effect as the first embodiment, and by configuring the structure of this embodiment, it is possible to realize a foldable portable wireless device that is small, has high antenna performance (and is highly portable). In addition, the number of antennas may be two or more, and as shown in the second embodiment, the part of the radio casing to which the transmitter 9 is attached may also be used for all antennas (the same effect can be obtained). .

Further, as in the first embodiment, other parts 2 of the radio housing
The structure does not necessarily have to have a groove, as long as the linear antenna does not damage the antenna when it collides with part 1 of the radio housing when the portable radio is folded.

(Effects of the Invention) As explained above, according to the present invention, a fixed linear antenna is attached to the smaller casing of a foldable portable radio device consisting of two casing parts, a large and a small casing. It has a structure in which a linear antenna is exposed on the larger casing when folded, and it is compact and can receive incoming calls even when folded, making it highly operable when making calls. can provide portable radio equipment.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a first embodiment of the invention, FIG. 2 is a diagram showing a second embodiment of the invention, FIG. 3 is a diagram showing a third embodiment of the invention, and FIG. 4 is a diagram showing a third embodiment of the invention. The figure shows an example of a conventional foldable portable radio, and FIG. 5 shows another example of the conventional foldable portable radio. Construction: Part of the radio housing, 2: Other parts of the radio housing, 3.3°: Linear antenna, 4.4°: Groove, 5: Connection part, 6: Receiver, 7: Display part, 8: Operation unit, 9: Transmitter.

Claims (1)

[Claims] Two wireless device casings connected to each other at a connecting portion, and one or more linear antennas provided at an end opposite to the connecting portion of one of the wireless device casings. In a portable radio device that is foldable by being bent at the connecting portion, the length from the connecting portion to the end of one of the wireless device casings is L1, and the length from the connecting portion to the end of the other wireless device casing is L1. A portable wireless device characterized in that, where L2 is the length of the linear antenna, and LW is the length of the linear antenna, L2>L1 and LW≦L2−L1.