JPS6115609Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an antenna mounting device suitable for use in, for example, mounting a rod antenna on a small radio receiver.

A telescopic rod antenna is often used in small radio receivers, television receivers, radio equipment, etc. In order to catch a wide range of radio waves,
This type of rod antenna is normally configured to be able to rotate and rotate forward and backward and left and right by means of two joints provided at its base. On the other hand, this rod antenna is generally attached to the top or side of a cabinet such as a radio receiver, but it is not used in small radios that require portability, cassette tape recorders with radios, etc. Sometimes they are reduced in size to fit into a recess in the top or side of a cabinet such as a radio receiver. However, with such a configuration, the center of rotation of the rod antenna, that is, the joint portion is located within the above-mentioned recess, so the rotation range of the rod antenna is greatly restricted by the corners of the recess. .

Therefore, by using an antenna mounting device that can slide vertically with respect to the cabinet, when the antenna is in use, the joint part of the rod antenna can be protruded from the storage recess provided in the cabinet.
It has been proposed that the rod antenna can be compactly stored in the recess by widening the rotational range of the rod antenna and retracting the joint portion of the rod antenna into the recess when not in use. In such an antenna mounting device, the antenna is mounted on a slidable support member, and a steel ball disposed at the tip of the spring is mounted on the support member using a spring disposed in a recess provided in the chassis. The support member can be held in two positions by fitting into the recess provided in the support member. However, the antenna mounting device having the conventional structure as described above has a large number of parts, resulting in high costs, and the manufacturing process is complicated, resulting in frequent failures. Furthermore, when the antenna mounting device was disassembled for purposes such as replacing the antenna, troubles such as the above-mentioned springs and steel balls falling into pieces continued to occur.

The present invention has been made in view of the above-mentioned problems, and includes a shaft support that rotatably supports a rod antenna, a support member that supports the rod antenna via the shaft support, and a sliding support member that supports the rod antenna. and a holding part provided on the mounting base side for holding the antenna, and the supporting member and the holding part are connected to each other by screws. An elastic piece having an engaging portion is integrally provided on either one of the
and the other is provided with a plurality of engaged parts for engaging with the engaging parts of the elastic piece, so that the supporting member can be held in the retracted position and the protruding position of the rod antenna, respectively; The supporting member is configured to be inserted into and attached to the holding portion from a direction opposite to the mounting direction of the rod antenna, and in this case, an elastically deformable stopper portion is provided on the supporting member, and the supporting member is attached to the holding portion. When the support member is inserted into the holding part, the stopper part is inserted over the wall part of the holding part, and after the support member is inserted into the holding part, the stopper part comes into contact with the wall part of the holding part and the stopper part is inserted into the holding part. An antenna mounting characterized in that an opening is provided in the cabinet of the mounting base so as to prevent the support member from coming off and which communicates with the shaft support and the screw insertion hole of the support member at the protruding position of the rod antenna. It is related to the device. By configuring in this way, the number of parts can be reduced, and it is therefore possible to provide an antenna mounting device that is low cost and has few failures. Moreover, it has a simple structure and can be easily disassembled and assembled by the user.

Hereinafter, an embodiment in which the present invention is applied to a rod antenna mounting device for a small radio receiver will be described in detail with reference to the drawings.

First, the structure of the antenna support member 1 according to this embodiment and the holding part 2 for holding the support member 1 will be explained with reference to FIGS. 1, 2, and 3. Fig. 1 shows the holding part 2 provided on the chassis 3 which also serves as a radio receiver cabinet, viewed from the front, and Fig. 2 shows the supporting member seen from the joint surface side with the holding part 2. 1 is shown. Moreover, FIG. 3 shows this antenna support device in an exploded manner. The holding portion 2 is molded integrally with the chassis 3 from a resin such as polyacetal, and the support member 1 is also molded from the same material. In this embodiment, an elastic piece 4 is integrally provided on the support member 1 shown in FIG. 2, and an engaging protrusion 5 is provided at the tip of the elastic piece 4. On the other hand, the first
Two protrusions 6 and 7 are integrally provided on the side of the holding part 2 shown in the figure at positions corresponding to the engagement protrusions 5 of the elastic piece, and these protrusions 6 and 7 allow the above-mentioned protrusions to The portion 5 is adapted to be locked.

The holding part 2 includes a wall part 8 that protrudes from the surface of the chassis 3 and is integrally provided to guide the support member 1.
It is surrounded on three sides except for the top where the rod antenna is inserted. Holding pieces 9a, 9b, 9c, and 9d are partially and integrally formed on this wall portion 8 so as to protrude inwardly, and between these holding pieces 9a to 9d and the chassis 3, a supporting member is provided. The support member 1 is held by inserting protrusions 10a, 10b, 10c, and 10d integrally provided on both sides of the support member 1 so as to protrude outward. The holding pieces 9a to 9d are attached to the support member 1
Acts as a guide when sliding. Moreover, the protrusions 10a and 10c and 10b and 10 of the support member 1
The distance l ₁ from the holding pieces 9c and 9d is larger than the length l ₂ of the holding pieces 9c and 9d. This is because when the support member 1 is inserted into the holding part 2 as shown by the imaginary line in FIG.
The holding pieces 9c and 9d are attached to the protrusions 10a, 10c and 1.
This is so that they are located between 0b and 10d.

A recess 12 is formed in the wall portion 8 at the lower end of the holding portion 2 in correspondence with a stopper portion 11 integrally provided at the lower end portion of the support member 1 . This recess 12
This is to facilitate attachment and detachment of the support member 1 to and from the holding portion 2.

Further, the sliding surfaces of the supporting member 1, that is, the contact surfaces with the chassis 3 and the contact surfaces of the protrusions 10a to 10d of the supporting member 1 that contact the holding pieces 9a to 9d of the holding part 2, are provided with grooves in the sliding direction, respectively. An extending convex portion 18 is integrally formed. This reduces the contact area and reduces the frictional resistance when the supporting member 1 slides.

To attach the rod antenna 13, proceed as follows. First, the support member 1 is inserted into the holding part 2 as will be described later, and then set in such a state that the support member 1 is located at the upper end of the holding part 2, as shown in FIG. Next, the rod antenna 13 is inserted into the upper part of the support member 1 through the opening 14 provided in the chassis 3 at the upper part of the holding part 2. Rod antenna 1
Pivot supports 23 and 24 are attached to the lower end of 3. The shaft supports 23 and 24 are connected to the support member 1 by screws 15 via electrodes 19 that have been attached to the support member 1 in advance. This screw tightening operation is performed by inserting a screwdriver into an opening 17 provided in the holding portion 2. In the figure, 16 is a screw insertion hole of the support member 1, and 20 is a lead wire. With this structure, for example, when replacing the antenna 13, there is no need to remove the back cover of the cabinet each time, which is very convenient.

Next, the operation of the antenna mounting device according to this embodiment will be explained with reference mainly to FIGS. 4 and 5.

First, in order to insert and attach the support member 1 to the holding part 2, the support member 1 is set as shown by the imaginary lines in FIG. In this state, the support member 1 is moved to the chassis 3.
If you press strongly upwards while pressing the support member 1
Due to its elasticity, the stopper portion 11 of the support member 1 climbs over the wall portion 8 of the holding portion 2 in the recessed portion 12.
The protruding parts 10a to 10d provided on the supporting member 1 are respectively held between the holding pieces 9a to 9d of the holding part 2 and the chassis 3, and the supporting member 1 is moved upward.
is held by the holding part 2. This state is the fourth
As shown in the figure, the stopper part 11 of the support member 1 comes into contact with the wall part 8 of the holding part 2 to prevent the support member 1 from coming off downward, and the engaging convex part 5 of the elastic piece 4 holds it. It engages with the lower part of the projection 7 of the portion 2 to restrict upward sliding of the support member 1. This state is a state in which the antenna 13 is retracted.

To pull out the antenna 13, strongly pull the antenna 13 upward in the state shown in FIG. If the antenna 13 is not attached to the support member 1, the support member 1 may be strongly pushed upward. Then, the elastic piece 4 of the support member 1 is deformed by its elasticity, and the engaging protrusion 5 of the elastic piece 4 is moved to the holding part 2.
The support member 1 slides upwardly over the protrusion 7 of the support member 1 . Then, as shown in FIG. 5, the engaging protrusion 5 of the elastic piece 4 moves between the protrusions 6 and 7 of the holding part 2, and the recess 21 formed between them moves.
to fit. Therefore, the support member 1 is restricted from sliding in the vertical direction in this state. Also, at this time, the antenna support part 22 provided on the upper part of the support member 1 is in contact with the chassis 3 on the upper part of the holding part 2. If the antenna 13 is to be retracted, either by strongly pushing the antenna 13 downward in the state shown in FIG. As a result, the state shown in FIG. 4 is reached.
At this time, the stopper part 11 of the support member 1 comes into contact with the wall part 8 of the holding part 2, so that the support member 1 is reliably held in the state shown in FIG. 4.

To remove the support member 1 from the holding part 2, remove the screws 15, remove the shaft supports 23, 24 and the rod antenna 13, and then put it in the state shown in FIG.
Using the tip of a screwdriver or the like, lift the stopper part 11 of the support member 1 to the left in the figure and remove the wall part 8 of the holding part 2.
It is sufficient to remove the support member 1 from the support member 1 and move the support member 1 downward in that state.

As is well known in the art, the rod antenna 13 is configured to be expandable and retractable by combining a plurality of tubes with different diameters, and has two joint parts 2 which are pivot supports.
3 and 24, it can be rotated and rotated forward, backward, left and right. When the antenna is not in use, the support member 1 is placed in the state shown in FIG. 4, that is, the antenna 13 is retracted, and as shown in FIG. The rod antenna 13 is housed in. When using the antenna, place the rod antenna 13 so that the support member 1 is in the state shown in FIG.
bring out. Then, the joint portion 23 of the rod antenna 13 protrudes from the storage recess 25, so that the rod antenna 13 can be rotated over a wide range as shown in FIG. Therefore, the range of use of the antenna is greatly expanded.

Although the present invention has been described in detail with respect to one embodiment, the above-mentioned embodiment is by no means limited to the present invention, and various modifications can be made based on the technical idea of the present invention. For example, in the above embodiment, the elastic piece 4 having the engagement convex portion 5 is attached to the support member 1.
The holding part 2 is provided with engaged parts 6 and 7 that are engaged with the engaging convex part 5, but conversely, the holding part 2 is provided with an elastic piece, and the supporting member 1 is provided with an elastic piece. An engaged portion with which the mating portion engages may be provided. Also, elastic piece 4
The engaging part and the corresponding engaged part include
Various structures can be used. For example, by providing a recess at the tip of the elastic piece 4, and providing a plurality of protrusions on the corresponding holding part 2 or support member 1, the protrusions fit into the recesses, so that the elastic piece 4 may be locked.

It goes without saying that the antenna mounting device according to the present invention can be applied to various models such as radio receivers, television receivers, wireless devices, and cassette tape recorders with radios.

As explained above, in the antenna mounting device according to the present invention, an elastic piece is integrally provided on either one of the support member for supporting the antenna and the holding part that slidably holds the support member, By engaging the engaging portion provided on this elastic piece with a plurality of engaged portions provided on the corresponding holding portion or supporting member, the supporting member can be moved to the storage position and the protruding position of the antenna. and can be maintained respectively. Therefore, the number of parts in the device can be reduced,
It is possible to reduce costs, and the structure is simple, so failures can be reduced.

Further, in the present invention, the supporting member is configured to be inserted into and attached to the holding portion from a direction opposite to the direction in which the rod antenna is attached, and in this case, an elastically deformable stopper portion is provided on the supporting member. When inserting the supporting member into the holding part, the stopper part is inserted over the wall part of the holding part, and after the supporting member is inserted into the holding part, the stopper part is inserted into the holding part. The support member is configured to come into contact with the wall portion of the section to prevent the support member from coming off. Therefore, when the rod antenna is pulled out or pushed in, it is possible to reliably prevent the support member from coming off from the holding portion.

Furthermore, in the present invention, at the protruding position of the rod antenna, the cabinet of the mounting base is provided with an opening that communicates with a screw insertion hole for screwing the shaft support and the support member. Therefore, the antenna can be attached or replaced extremely easily without, for example, removing the back cover or the like.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is a front view of a holding part provided on the chassis of the radio, FIG. 2 is a front view of the support member seen from the joint surface side with the holding part, and FIG. 3 is an exploded perspective view of this antenna support device. FIG. 4 is a vertical cross-sectional view of the antenna mounting device showing the antenna in a retracted state, FIG. 5 is a vertical cross-sectional view similar to FIG. 4 showing the antenna in a pulled-out state, and FIG. 6 is a radio according to the above embodiment FIG. 7 is a schematic side view of the same. In addition, in the symbols used in the drawings, 1...
...(antenna) support member, 2...holding part, 4...
Elastic piece, 5... Engaging convex part, 6, 7... Protrusion part,
13...It is a rod antenna.

Claims (1)

[Claims for Utility Model Registration] A shaft support that rotatably supports the rod antenna, a support member that supports the rod antenna via the shaft support, and a mounting base side for slidably holding the support member. and a holding part provided in the antenna mounting device, wherein the pivot support member and the supporting member are connected to each other with a screw, the antenna mounting device comprising: an engaging part provided on either the supporting member or the holding part. and a plurality of engaged portions for engaging with the engaging portions of the elastic piece to hold the support member at the retracted position and the protruding position of the rod antenna, respectively. The support member is configured to be inserted into and attached to the holding portion from a direction opposite to the attachment direction of the rod antenna, and at this time, the support member is provided with an elastically deformable stopper portion. When inserting the supporting member into the holding part, the stopper part is inserted over the wall part of the holding part, and after the supporting member is inserted into the holding part, the stopper part is inserted into the holding part. The support member is prevented from coming off by contacting the wall portion of the holding portion, and an opening communicating with the shaft support and the screw insertion hole of the support member is provided in the mounting base at the protruding position of the rod antenna. An antenna mounting device characterized by being installed in a cabinet.