JP2937138B2 - Simple antenna detachable structure for communication equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna structure of a radio communication device, and more particularly to an antenna structure of a radio communication device having a structure for facilitating separation and connection of antennas and improving operability.

[0002]

2. Description of the Related Art In a conventional wireless communication apparatus having a structure in which an antenna can be separated from a main body and installed in another place, the attaching / detaching operation of the antenna is performed with screws or fasteners for mechanical connection. A coupling operation and an operation of coupling a coaxial cable to a connector to make an electrical connection are required.

FIG. 4 is a side view of a wireless communication device for explaining a conventional structure. FIG. 4 shows the antenna support 6.
Is shown in a partial cross-sectional view. Referring to FIG. 4, the planar antenna 1 is fixed to an antenna support 6 via a rotation shaft 4, and is fixed to a main body 7 including a transceiver (not shown) by an antenna unit mounting screw 5.

[0004] As a result, the antenna 1 is mechanically coupled to the main body 7, but in order to make an electrical connection, the coaxial cable 2 provided at another location is connected to the connector terminal of the main body 7 by the coaxial connector 3. A connection is required.

In the case of a structure in which a rod-shaped antenna is fixed with a cap nut, mechanical connection and electrical connection are simultaneously performed. However, since the rod-shaped antenna is used, the antenna is fixed with a coaxial connector as it is. However, the angle of the antenna cannot be arbitrarily adjusted.

[0006] As a prior art of a connection structure of an antenna, for example, Japanese Patent Application Laid-Open No. 1-273405 discloses a connection device that performs mechanical connection and electrical connection via a waveguide. However, this connection device was not of a structure that could absorb the angle adjustment of the antenna.

[0007]

The prior art described above is
It has the following problems.

(1) The first problem is that in a wireless communication apparatus capable of separating antennas, the operation of attaching and detaching the antenna is complicated.

The reason is that fasteners (fixtures) such as screws.
This is because the operation of mechanically attaching the antenna support base to a support such as the main body of the antenna support base and then connecting the antenna input / output terminal by the coaxial connector is required.

(2) The second problem is that erroneous operations such as energization or the like occur when only the mechanical connection is made and the cable is forgotten to be connected (the electric connection is not made). That is.

[0011] The reason is that two operations are required for one purpose of mounting the antenna.

A communication device in which an antenna can be detached from a main body can cope with various use forms and is highly convenient.
Therefore, it is desired to improve the operability by achieving simplification of the attaching and detaching operation.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a communication device in which an antenna can be detachably attached to a main body, so as to provide a structure capable of simplifying the operation of attaching and detaching the antenna. It is in.

[0014]

In order to achieve the above object, the present invention relates to a communication apparatus provided with a planar antenna having an angle adjusting function which can be detached and attached. An antenna support having a structure in which the displacement is absorbed by the torsional displacement of the coaxial cable, and having bearing means for a rotating shaft supporting the antenna, a coaxial connector having a float mechanism, and fixing means for detachably attaching to the apparatus. And a positioning means for determining a relative position of the antenna support member, a receiver of the coaxial connector, a receiver of the fixing means, and a receiver on the side to which the antenna support member is attached. I do.

Further, according to the present invention, in a communication device provided with a planar antenna having an angle adjusting function which can be detached and attached, a structure in which a displacement of the coaxial signal line due to the displacement of the antenna is absorbed by a torsional deformation of the coaxial cable. A rotating shaft supporting the antenna and the coaxial cable are arranged on the same line, and the coaxial cable is structured so as not to be seen from the outside; bearing means for the rotating shaft supporting the antenna; and a coaxial having a float mechanism. A connector, and an antenna supporting member having a fixing means for detachably attaching to the device, a receiving part of the coaxial connecting connector, a receiving part of the fixing means, It is characterized by having positioning means for determining a relative position with respect to the antenna support member.

[0016]

Embodiments of the present invention will be described below.

In a communication device provided with an antenna having an angle adjusting function, it is necessary to use a coaxial rotary joint or a coaxial cable in order to absorb angular displacement due to rotation. The former is disadvantageous in terms of high design flexibility and cost, and the latter is disadvantageous in that the connection operation is complicated.

Therefore, in the present invention, in the structure for absorbing the antenna rotational displacement by the coaxial cable, a structure in which the antenna is electrically connected if a mechanical coupling operation is performed when attaching and detaching the antenna is realized.

That is, according to a preferred embodiment of the present invention, a supporting base having a bearing for a rotary shaft for supporting an antenna is provided, and at this portion, the supporting base is connected to a main body supporting surface. A coaxial connector, a screw and a screw hole were provided on each side, and the coaxial connector was connected simply by tightening the screw.

Further, in the embodiment of the present invention, a positioning mechanism is provided for guiding the coaxial connector so as not to be damaged at the time of mounting.

In order to prevent excessive force from being applied to the connector even when the dimensions vary due to manufacturing tolerances normally possessed, the connector has a floating structure that holds the connector with a predetermined clearance. Also, the connector is constantly pressed in the fitting direction by using the biasing force of an elastic member such as a spring, so that the connector is securely fitted.

When the antenna is attached or detached, if the above-mentioned support is operated and the antenna is installed on the main body, the antenna input / output terminals are simultaneously inserted and removed. By turning the fixing screw, the antenna is fastened to the main body. You.

Further, a guide mechanism is provided on the main body plate by providing positioning pins and the like.
At the time of mounting, it is designed not to damage the antenna input / output terminal.

[0024]

EXAMPLE Next, an example illustrating a more specific example of the above-described embodiment of the present invention will be described.

FIG. 1 is a diagram showing the configuration of the first embodiment of the present invention. Referring to FIG. 1, this embodiment is directed to a planar antenna 1 of a communication device having an angle adjusting function which can be detached and attached.
In the structure, the displacement of the coaxial signal line due to the angular displacement of the antenna is absorbed by the torsional displacement of the coaxial cable 2,
An antenna support 6 having a bearing for a rotating shaft 4 supporting the antenna 1, a coaxial connector 3 having a float mechanism, and a fastener for mounting screws 5 and the like is provided. On the main body side on which the antenna support 6 is mounted, It has a positioning mechanism for receiving the coaxial connector 3, receiving the fastener, and the pins 8.

The antenna 1 is connected to the antenna support 6 via the rotating shaft 4. When the antenna 1 is detached, the screw 5 provided on the antenna support 6 is used.
Is attached to the main body 7.

The antenna support 6 has a floating structure in which the coaxial connector 3 holds the clearance with a clearance. The coaxial connector 3 is fixed with a certain amount of backlash.
And the like.

The antenna support 6 and the main body 7 are
A positioning mechanism such as a positioning pin 8 in the figure is provided to ensure that even if careless operation is performed, the coaxial connector 3 is prevented from being damaged.

With such a structure, the detachable antenna can be easily detached without applying an excessive force to the connector even if there is a manufacturing tolerance.

FIG. 2 is a diagram showing the configuration of the second embodiment of the present invention. Referring to FIG. 2, in the embodiment of the present invention, the coaxial cable 2 is arranged so as to be concentric with the rotating shaft 4 so as to be invisible from the outside. The cable is twisted to absorb the displacement, but the other structure is the same as that of the embodiment shown in FIG.

FIG. 3 is a perspective view showing a specific configuration example of the embodiment of the present invention. Referring to FIG. 3, in this embodiment, the antenna 1 is applied to a communication device that can be easily removed by a screw having a knob head. By operating the antenna support 6, the connector 3 is inserted.

[0032]

As described above, according to the present invention,
The following effects are obtained.

(1) A first effect of the present invention is that the antenna can be attached and detached by a simple operation in the communication device.

The reason is that, in the present invention, the antenna input / output signal terminal is fitted by a one-touch operation when the antenna is detached / attached.

(2) A second effect of the present invention is that the configuration is simplified, and the appearance and safety are improved.

The reason for this is that, in the present invention, the coaxial cable is made coaxial with the rotating shaft so that it can be made invisible from the outside, thereby avoiding erroneous operations such as being caught by a hand, and allowing the cable to be hand-operated. There is no need to operate it by holding it.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

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

FIG. 3 is a perspective view showing one embodiment of the present invention, showing a configuration in which the present invention is applied to a communication device from which an antenna unit can be easily removed.

FIG. 4 is a simple diagram showing a conventional structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Coaxial cable 3 Coaxial connector 4 Rotation axis 5 Antenna mounting screw 6 Antenna support stand 7 Main body 8 Positioning pin 9 Spring

Claims (4)

(57) [Claims] 1. A communication device provided with a planar antenna having an angle adjusting function that can be detached and attached, wherein the antenna has a structure in which a displacement of a coaxial signal line due to an angular displacement of the antenna is absorbed by a torsional displacement of a coaxial cable. An antenna support member having a bearing means of a rotating shaft for supporting the same, a coaxial connector having a float mechanism, and a fixing means for detachably attaching to the device, comprising: A simple antenna detachable structure for a communication device, comprising: a receiver for a coaxial connector, a receiver for said fixing means, and a positioning means for determining a relative position with respect to said antenna support member. 2. A communication device having a planar antenna having an angle adjusting function capable of detachable attachment and detachment, wherein a structure is adopted in which a displacement of a coaxial signal line due to a displacement of the antenna is absorbed by a torsional deformation of a coaxial cable. The rotating shaft to be supported and the coaxial cable are arranged on the same line, and the coaxial cable is structured so as not to be seen from the outside, bearing means for the rotating shaft supporting the antenna, and a coaxial connector having a float mechanism, A fixing means for detachably attaching the antenna supporting member to the device; and a receiving part for the coaxial connector, a receiving part for the fixing means, and the antenna supporting member on a side to which the antenna supporting member is attached. And a positioning means for determining a relative position of the communication device. 3. The coaxial connector having the float mechanism is urged by an elastic member so as to be fitted into a receiver of the coaxial connector.
Or a simple antenna detachable structure of the communication device according to 2. 4. The communication device according to claim 1, wherein the side on which the antenna support member is attached is one end surface of the device main body facing when the angle of the antenna is adjusted. Antenna detachable structure.