JPH0611675Y2 - Internal / external antenna switching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an antenna switching device in a wireless communication device having both built-in and external antennas.

[Conventional technology]

As a conventional wireless communication device, one in which an antenna is connected to the outside or one in which the antenna is housed is known.

[Problems to be solved by the invention]

When a conventional portable wireless device or the like is used, the external antenna is always protruding from the wireless device main body, which is inconvenient to carry and the safety during operation is impaired. The disadvantage is eliminated by using the built-in antenna. However, at present, it is difficult to maintain sufficient performance in actual use only with the built-in antenna due to the problem of electric field strength, etc., and it is inevitably necessary to use a combined type with an external antenna. Depending on the condition of the area to be used, if the external antenna is attached to and detached from the main body each time, the merit of being used in parallel with the built-in antenna cannot be sufficiently exerted.

On the other hand, there is also one having both a built-in antenna and an external antenna that can be housed in the radio body, and a switch that switches to the built-in antenna when the external antenna is housed. In such a radio device, in order to operate the changeover switch, it is necessary to push the external antenna at least by a length about the size of the switch, and it is impossible to immediately switch to the built-in antenna. There was a problem.

This invention was made in order to solve the above-mentioned problems, and it is possible to switch the built-in / external antenna immediately by simply inserting / removing the rod-shaped external antenna inside / outside the radio body. An object is to obtain an antenna switching device.

[Means for solving problems]

This invention firstly comprises a change-over switch having a change-over contact capable of change-over connection with an internal antenna incorporated in a wireless communication device and an external antenna provided in the communication device so as to be retractable and retractable. An internal / external antenna switching device having switching means for switching the switching contact of the switching switch to the side of the internal antenna by storing the antenna, and switching the switching contact of the switching switch to the side of the external antenna by extracting the external antenna. In the above, the switching means is provided immediately below the antenna mounting portion, and a resin spherical contact adapter for converting the storage / extraction operation of the external antenna into a direction intersecting with the same, and the contact adapter and the changeover switch. Is rotatably supported in between, and rotates with the movement of the contact adapter to move the movement of the contact adapter to the changeover switch. The present invention relates to an internal / external antenna switching device comprising a lever member for transmitting, and secondly, the external antenna includes a rigid body portion for switching the switching switch, and an antenna element. The present invention relates to an internal / external antenna switching device, which is characterized by comprising a rod-shaped body having a flexible portion as a portion.

[Operation] Although the external antenna in this invention is a flexible type for safety, only the portion for switching the switch is made rigid, and the spherical adapter is a slippery resin that does not generate noise due to contact with the external antenna. By using (Delrin or the like), the vertical movement caused by the insertion / removal of the external antenna is smoothly and surely converted into the lateral movement to operate the switching switch. Therefore, according to the device of the present invention, it is possible to reliably and smoothly switch the inner and outer antennas only by taking the outer antenna in and out.

[Example of device]

 An embodiment of the present invention will be described below.

(1) is the main body of the radio, (2) is the internal antenna unit installed on the top of the main body of the radio, (3) is the battery pack set on the side of the radio, and (4) is the main body of the radio (1) and battery. External antenna provided for storage between the packs (3), (5)
Is a sheet metal forming the internal antenna (2), (6) is a printed circuit board, (7) is an antenna switching switch, and (8) is a switching switch.
Actuator attached to (7), (9) switching switch
Mounting bracket for fixing (7) to printed circuit board (6), (10)
Is a holder for holding the external antenna (4), (11) is an insert for fixing the holder (10) to the internal antenna (2), and (12) is an external antenna for operating the switching switch (7). Rigid body part, (13) is an external antenna
(4) is a flexible element, (15) is a spherical adapter that moves laterally according to the vertical direction of the external antenna, and (16) is the adapter (1
5) Stopper to prevent jumping out, (17) is a lever that propagates the movement of the adapter (15) to the switch (7), and (18) electrically connects the external antenna (4) and the printed circuit board (6). It is a terminal board.

Next, the operation will be described.

The external antenna holder (10) is fastened and fixed to the insert (11) provided on the side surface of the internal antenna unit (2). The holder (10) has a ring shape, and the external antenna (4) is vertically movable inside the holder (10). Furthermore, the anti-slip metal fitting (13) provides a structure that does not fall off.
Further, the external antenna (4) is composed of a flexible element for safety, and only the part for operating the switch is composed of a rigid body.

An adapter (15) is provided between the external antenna (4) and the internal antenna (2), and the adapter (15) is formed of a resin having a small frictional resistance (for example, Delrin) into a spherical shape.
The rigid body portion (12) of the external antenna (4) pushes it laterally while rotating smoothly with respect to the insertion and removal of the external antenna (4). This makes it possible to reliably and smoothly convert the vertical movement caused by the insertion / removal of the external antenna (4) into the horizontal movement. This lateral movement
The lever (17) using the principle of expansion is used for enlargement and transmission to the antenna switching switch (7) to turn on the switching switch (7). From the external antenna (4) to the internal antenna (2)
Switch to.

On the contrary, a metal fitting to prevent the external antenna (2) stored from coming off
By firmly pulling out (13) until it hits the bottom of the sleeve of the holder (10), the adapter (15) that was held by the rigid body part (12) of the external antenna (2) until now is free. In addition, the switch switch (7) actuator
The load applied to (8) becomes zero and the switching switch (7) is turned off by the tension of the switch (7). As a result, the built-in antenna (2) is switched to the external antenna (4).

[Effect of device]

As described above, according to the present invention, the external antenna is only put in and taken out between the external antenna which is provided in the radio body in advance and can be stored in the radio body, and the internal antenna which is built in the radio body. Thus, it is possible to reliably switch between each other, and it is possible to effectively use the internal antenna and the external antenna together.

Further, in the switching device according to the present invention, as described above, the switching means is provided directly below the antenna mounting portion and is made of resin for converting the storing / extracting movement of the external antenna to a direction intersecting with the resin. Since the small spherical contact adapter and the lever member for transmitting the movement of the contact adapter to the changeover switch are provided, the contact position between the antenna and the adapter can be the upper end of the case regardless of the size of the switch. As a result, it is possible to realize a switching device in which the switch can be turned on immediately by inserting the antenna as much as possible. In addition, the size, mounting location, and mounting direction of the switch are not limited, and the degree of freedom in design is increased.

Furthermore, by making the contact adapter that converts the movement of the external antenna's storage / extraction operation to the direction intersecting with it, the contact adapter is made of a spherical resin so that the external antenna slides well and when the external antenna is taken in and out. In addition, no noise is generated due to the contact between the adapter and the external antenna.

[Brief description of drawings]

FIG. 1 is a perspective view showing a radio unit according to an embodiment of the present invention. FIG. 1 (A) shows a state in which an external antenna is extracted, and FIG. 1 (B) shows a state in which the external antenna is housed. 2 is a perspective view showing an antenna switching structure according to an embodiment of the present invention. FIG. 2 (A) is an overall perspective view, FIG. 2 (B) is a partial perspective view, and FIG. FIG. 3 is a three-view drawing showing the antenna switching structure of FIG. 3, FIG. 3 (A) is a plan view, and FIG. 3 (B).
Is a side view, FIG. 3 (C) is a view taken along the line CC of FIG. 3 (A), and FIG.
The figure is a three-sided view showing an antenna switching structure when an external antenna is used. Fig. 4 (A) is a plan view, Fig. 4 (B) is a side view, and Fig. 4 (C) is Fig. 4 (A). 5 is an external view showing the details of the external antenna. FIG. 5 (A) shows the extracted state, and FIG. 5 (B) shows the stored state. In the figure, (1) is the main body of the transceiver, (2) is the built-in antenna unit, (3) is the battery pack, (4) is the external antenna,
(5) is a sheet metal, (6) is a printed circuit board, (7) is a switching switch,
(8) is an actuator, (9) is a mounting bracket, (10) is a holder, (11) is an insert, (12) is a rigid body part, (13) is a retaining bracket, (14) is an element, and (15) is An adapter, (16) is a stopper, (17) is a lever, and (18) is a terminal board. In the drawings, the same reference numerals indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuyuki Tsunoda, 8-1-1 Tsukaguchi Honcho, Amagasaki City, Hyogo Prefecture, Ryoden Engineering Co., Ltd. Itami Works (56) Bibliography 61-42148 Actual Development Sho 56-18626 (JP, U) Actual Public Sho 43-29638 (JP, Y1)

Claims (2)

[Scope of utility model registration request] 1. A change-over switch having a change-over contact connectable to an internal antenna incorporated in a wireless communication device and an external antenna provided in the communication device so as to be housed / removed,
And a switching means for switching the switching contact of the switching switch to the internal antenna side by the housing operation of the external antenna and switching the switching contact of the switching switch to the external antenna side by the extraction operation of the external antenna.
In the external antenna switching device, the switching means is provided directly below the antenna mounting portion, and a spherical contact adapter made of resin for converting the storage / extraction operation of the external antenna into a direction intersecting with the same, the contact adapter, and the contact adapter And a lever member that is rotatably supported between the changeover switch and that rotates with the movement of the contact adapter to transmit the movement of the contact adapter to the changeover switch. External antenna switching device. 2. The utility model registration claim 1 wherein the external antenna is a rod-shaped body having a rigid portion for switching the changeover switch and a flexible portion as an antenna element portion. Internal / external antenna switching device described.