JPH0758533A - Antenna mount device - Google Patents

Abstract

PURPOSE:To provide an antenna mount device in which an antenna is directed in any direction and the antenna is locked to a selected position in one-touch. CONSTITUTION:The antenna mount device has a mount base 2 fitted to part of a car body 13 of an automobile and an antenna receiving jig 3 fitted to the mount base 2 to which an output terminal of the antenna is connected. Then the antenna receiving tool 3 is freely turned in a horizontal plane with respect to the mount base 2 and tilted within a vertical plane free of angle change and the tool is simultaneously locked at a predetermined position and angle by one-touch operation of the clamp plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna mounting device for mounting an antenna on a part of an automobile body.

[0002]

2. Description of the Related Art Conventionally, to attach an antenna to a part of a car body, an antenna base is attached to a part of the car body with a fixing bolt, and an output end of the antenna is connected to an antenna receiver.
Loosen the bolt that connects the antenna receiver and the antenna base to tilt the antenna receiver and rotate the antenna receiver to select the optimum orientation of the antenna for radio waves, then tighten the fixing bolt to attach the antenna to the antenna. It is fixed to the base.

[0003]

However, according to the above-described conventional antenna mounting device, it is necessary to loosen or tighten the tightening bolts at two positions each time when the optimum orientation of the antenna with respect to the radio wave is selected. Yes,
There was a problem that adjustment was time-consuming.

Therefore, an object of the present invention is to solve the problems of the prior art, to direct the antenna in any direction, and to adjust the antenna adjusted in a predetermined direction by one-touch operation of the clamp plate. An object is to provide an antenna mounting device that can be locked in position.

[0005]

In order to achieve the above object, an antenna mounting device according to the present invention has a base plate which can be mounted on a part of a vehicle body of an automobile, and is fixed to the base plate. A fixed guide body, a support bracket having a tightening band rotatably fitted to the outer peripheral surface of the fixed guide body, and a pair of arm portions extending from both ends thereof,
A bearing bracket is inserted between the arm portions of the support bracket, and is pivotally mounted via a pivot shaft so as to be pivotable, and an antenna receiver to which an antenna is connected and the arm portion of the support bracket are sandwiched between A clamp plate that is rotatably supported by both ends of the pivot shaft and has a drive cam formed on the surface facing the arm portion, and a clamp plate that is arranged adjacent to the drive cam and is pressed inward by a cam action. A driven cam member, and a holding metal fitting interposed between the bearing bracket of the antenna receiver and the driven cam member.

[0006]

The mounting base of the antenna mounting device is fixed to a part of the vehicle body of the automobile, and the output end of the antenna is fitted to the antenna receiver. When the clamp plate is rotated in the unlock direction, the antenna receiver can be rotated in the horizontal plane and can be tilted about the pivot axis in the vertical plane, so that the optimum orientation of the antenna for radio waves can be easily selected. Also,
By rotating the clamp plate in the lock direction, it is possible to simultaneously lock the movement of the antenna receiver around the fixed guide body and the pivot shaft.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the antenna mounting device of the present invention will be described below with reference to FIGS. The antenna mounting apparatus indicated by reference numeral 1 as a whole has a mounting base 2 and an antenna receiver 3. The mounting base 2 has a base plate 4, a center shaft 5 constituting a fixed guide body is fixedly mounted on the base plate 4, and a fixed guide tube 6 is provided outside the center shaft 5.
Are concentrically fixed. A support bracket 7 is rotatably fitted on the fixed guide tube 6. The base plate 4 has a substantially semi-circular plate shape, and both ends of the straight line portion thereof are bent downward in a U-shape to form a mounting portion 11.
It is adapted to be fastened and fixed to the vehicle body 13 by screws 10 via the contact plate 9. Also, the base plate 4
A rubber plate 12 is provided on the lower surface of the vehicle to protect the vehicle body surface. The base plate 4 is covered with a substantially dome-shaped cover 8.

The center shaft 5 is a disk-shaped flange portion 1.
4 and a shaft portion 15, and the fixed guide tube 6 is sandwiched between the lower end portion of the shaft portion 15 and the base plate 4, and the screw 1
It is fastened and fixed by 6. The fixed guide tube 6 and the flange portion 14 of the center shaft constitute a fixed guide tube.

On the other hand, the support bracket 7 includes the flange portion 14 of the center shaft 5 and the journal 1 of the fixed guide tube 6.
7 has a tightening band part 18 which is fitted to 7 and is rotatable about a vertical axis, and a pair of arm parts 19 and 19 extending obliquely upward from both ends of the tightening band part 18, The antenna receiver 3 is attached to these arms 19, 19.

On the other hand, the antenna receiver 3 has a socket portion 20, and the antenna 2 is provided inside the socket portion 20.
A connector 25 for connecting the three output terminals 24 is mounted. A coaxial cable 26 is connected to the lower part of the connector 25.
1 is drawn out from the bottom of the socket portion 20 as shown in FIG. 1, and is wound around the shaft portion 15 of the center shaft 5 in the mounting base 2 a plurality of times (twice in this embodiment), and then is illustrated. Not connected to the receiver. By thus winding a part of the coaxial cable 26 around the shaft portion 15, the coaxial cable 26 is detached from the connector 25 or cut even if the antenna 23 is swung around the fixed guide tube 6. There is no such thing. A bearing bracket 27 is integrally projectingly provided on the lower side surface of the socket portion 20. The bearing bracket 27 is inserted between the arm portions 19 and 19 and is rotatable via a pivot 29. Pivoted. Clamp plates 30 for fixing and holding the antenna 23 are attached to both ends of the pivot 29.

As shown in FIG. 5, the clamp plate 30 is formed in a substantially semi-circular plate shape, and a notch 31 for receiving the antenna receiver 3 is formed at the center thereof. The inner surfaces of the notch 31 facing each other face the outer surfaces of the arm portions 19 of the support bracket 7, and the inner surfaces of the clamp plate 30 are inclined drive cams 32, 32.
Are formed. Driven cam members 33, 33 are arranged adjacent to the drive cams 32. The driven cam member 33 has a substantially ring shape, and the driven cam surface 3 which is an inclined surface is formed on the surface on the side where the driven cam member 33 meets the drive cam 32.
4 are formed. Further, the driven cam member 33 is partially inserted into an annular space between the pivot shaft 29 and the mounting hole 35 of the arm portion 19 of the support bracket, and the shoulder portion 36 serves as the arm portion 1.
It is in contact with the side surface of 9. Furthermore, a holding metal fitting 37 is interposed between the driven cam member 33 and the bearing bracket 27 of the antenna receiver 3. A key 38 is provided at the boundary between the driven cam member 33 and the mounting hole 35 of the arm portion 19 to prevent the driven cam member 33 from rotating.

Next, the operation of the above-described antenna mounting device will be described. First, loosen the screws 10 and the base plate 4
The rubber plate 12 is attached to the bottom surface of the antenna, and the screw 10 is tightened to fix the antenna mounting device 1 to the vehicle body 13 by the contact plate 9 and the rubber plate 12. Then, the clamp plate 30 is rotated in the unlocking direction to release the pressure contact state between the drive cam 32 of the clamp plate 30 and the driven cam member 33. Next, the socket 20 of the antenna receiver 3 is rotated around the fixed guide tube 6 and tilted around the pivot 29 so as to select the direction in which the antenna best catches the radio wave. After the orientation of the antenna is determined, the clamp plate 30 is rotated in the locking direction and the drive cam 32 presses the driven cam member 33 inward.

Then, the arms 19, 19 are pushed toward the bearing bracket 27 together with the holding metal fittings 37, and the diameter of the tightening band 18 is reduced, so that the tightening band 18 is fixed to the flange 14 of the center shaft 5 and the fixed guide tube. Since the journal 17 of 6 is tightened, the antenna receiver 3 is locked in place. In addition, the holding metal fitting 37 is the bearing bracket 2.
Since 7 is strongly pressed from both sides, the movement of the socket portion 20 is restrained and locked at a predetermined angular position.

On the other hand, when the clamp plate 30 is rotated in the unlocking direction, the engagement between the drive cam 32 of the clamp plate 30 and the driven cam member 33 is loosened, and the socket portion 20 of the antenna receiver 3 is fixed. The antenna can be rotated around the guide tube 6 and can be tilted around the pivot 29, and the antenna can be moved to a desired position.

[0015]

As described above, according to the present invention, the antenna receiver is pivotally attached to the tip of the support bracket which is rotatable around the fixed guide body via the pivot shaft, and the clamp plate is attached. By moving the to the lock position, the movement around the fixed guide of the support bracket and the movement around the pivot shaft of the antenna receiver can be locked at the same time, so the antenna can be moved to the desired position by one-touch operation of the clamp plate. The antenna holder can be moved and locked at the same time when the antenna holder is swung and changed, and the antenna holder can be locked in the correct direction without trouble.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of an antenna mounting device according to the present invention.

FIG. 2 is a transverse cross-sectional view cut along the line AA of FIG.

FIG. 3 is a side view showing an antenna mounting device according to the present invention.

4 is a front view seen from the direction of arrow B in FIG.

FIG. 5 is a plan view of the antenna mounting device.

[Explanation of symbols]

 1 Antenna Mounting Device 2 Mounting Base 3 Antenna Receiver 4 Base Plate 5 Center Shaft 6 Fixed Guide Tube 7 Support Bracket 13 Car Body 14 Flange 15 Shaft 18 Tightening Band 19 Arm 20 Socket 23 Antenna 27 Bearing Bracket 29 Center Support shaft 30 Clamp plate 32 Drive cam 33 Driven cam member 37 Holding metal fitting

Claims (4)

[Claims] 1. A base plate which can be attached to a part of a vehicle body of an automobile, a fixed guide body fixed to the base plate, and rotatably fitted to an outer peripheral surface of the fixed guide body. A support bracket having a tightening band and a pair of arm portions extending from both ends thereof, and a bearing bracket inserted between the arm portions of the support bracket, and pivotally attached via a pivot shaft, An antenna receiver to which the antenna is connected,
A clamp plate, which is rotatably supported by both ends of the pivot shaft so as to sandwich the arm portion of the support bracket and has a drive cam formed on a surface facing the arm portion, and a clamp plate adjacent to the drive cam. An antenna mounting device comprising: a driven cam member that is arranged in the above manner and is pressed inward by a cam action; and a holding metal member that is interposed between the bearing bracket of the antenna receiver and the driven cam member. 2. The fixed guide body includes a center shaft having a lower end of a shaft portion fixed to the base plate and a flange portion at an upper end thereof, and a fixed guide arranged substantially concentrically with respect to the center shaft. The antenna mounting device according to claim 1, wherein the antenna mounting device comprises a cylinder. 3. The fixed guide body is installed on a substantially vertical axis, and the pivot shaft is installed on a substantially horizontal axis orthogonal to the axis of the fixed guide body. The antenna mounting device described in. 4. A coaxial cable connected to an antenna is led out from a bottom portion of the antenna receiver, wound around the center axis in plural times, and then led out to the outside. The antenna mounting device described in.