JPH0119450Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the invention of a support seat for an antenna that is attached to a vehicle body, etc., and is attached to the surface of a base part of a vehicle body etc. using the suction force of a magnet. This device forms and maintains a strong adsorption force, obtains sufficient adsorption force with a relatively small magnet, and effectively ensures stable and accurate attachment over a long period of time at low cost.

It is well known that the antenna can be attached to the vehicle body by screwing it with a hole, tightening it with special metal fittings, or using a combination of these methods.
In order to make the above-mentioned screw fastening, it is necessary to drill screw holes in the car body, which may cause damage to the car body, and if special metal fittings are used, the metal fittings may be attached to specific locations such as rain gutters. Since the antenna must be applied, the antenna mounting position must be specified, and moreover, it requires a complicated metal fitting using a plurality of members. Therefore, various studies have been made to eliminate the need for drilling holes to install the antenna as described above, and proposals have been made to use magnets and suction cup structures, but these methods are theoretically difficult to install. However, in practice, it is not possible to obtain a stable mounting relationship for a vertically erected antenna, that is, a large-scale mounting with three or more auxiliary mounting parts is required. Accurate attachment is difficult to achieve without using metal fittings or a strong adhesive. However, using adhesives in this way stains the beautifully finished painted surface of the car body.
In particular, if the mounting position is changed, the painted surface may peel off, or the adhesive may remain stuck to the vehicle body surface, leaving unsightly marks. Of course, it is obvious that attachment cannot be accomplished without special preparation of the adhesive.

In addition, as shown in Japanese Utility Model Publication No. 55-6166, an elastic body with a suction cup-like brim is attached to a removable magnet, and the purpose is to utilize the suction force of the magnet to prevent water droplets from penetrating. There is something like that. However, in the case of this type, the suction cup-shaped brim does not have its own adsorption power, but simply prevents the penetration of water droplets, etc., and the magnet itself needs to have a large adsorption power. As with conventional magnets, the force must be strong and large in order to prevent them from falling off due to vibrations while driving, etc., which is disadvantageous.

The present invention was devised after repeated studies in view of the above-mentioned circumstances, and the specific embodiment thereof is shown in the attached drawings. Suggest a seat. That is, as shown in FIG. 1, an insulated cable 15 is inserted into a base 2 on which a suitable antenna 1 is attached, a support seat 3 is attached to the base 2, and a suction plate 5 made of rubber or soft synthetic resin is attached. A ring-shaped magnet 4 is installed in the support seat 3, that is, a mounting member 9 is installed in the center of the suction plate 5 to provide an electrostatic grounding effect to the base body 10 such as a vehicle body. 5 and the mounting plate 14 of the magnet 4 are attached to the base body 2. In the present invention, in such a structure, the suction plate 5 is attached to the inner surface of the support seat 3 at the inner side near the circumferential side of the magnet 4. First annular protrusion 1 that presses against the base body 10 surface
1 and a second annular protrusion 12 which presses against the surface of the base body 10 on the peripheral side of the support seat 3.

In addition, in the illustrated embodiment described above, the base body 2 and the support seat 3 are formed separately and are fixed by the mount 9, but both of these parts are in a rigid state. It is clear that it may be molded as a single piece of hard synthetic resin or the like. In the normal state, the suction plate 5 is as shown in FIG. 2, and has a recessed portion 5a in the center of the bowl-shaped suction surface for receiving the magnet 4 and its cylindrical mounting plate 14.
, and the one installed in the support seat 3 has high airtightness and does not require adhesives or sealants. When the suction plate 5 is set to be suctioned against the base surface 10, as shown in FIG. 12 presses the peripheral side 5b of the suction plate 5 against the base surface 10, and the bowl-shaped suction surface is attached to the base surface 10 in a flat shape.
A thin layer of covering material 7, such as aluminum foil, is applied to the magnet 4 to prevent it from being exposed on the bottom surface.

In addition to the antenna 1 shown in FIG. 1 in which a spring 8 is attached between the antenna element 1 and the base 2 and the cable 15 is directly connected to the antenna 1, there are also commonly known antennas as shown in FIG. Of course, it is also possible to use an antenna 1 that uses the same antenna. As shown in FIGS. 1 and 2, the circumferential side 5b of the suction plate 5 is made to protrude at least in part to the outside of the second annular protrusion 12 (in the figure, protrudes over the entire circumference). The outer protruding part can be removed and used as the operation part.

According to the present invention as described above, adhesion is made to the base surface using both the adsorption force of the adsorption plate 5 and the adsorption force of the magnet 4. In this adhesion state, the annular protrusions 11 and 12 are attached to the adsorption plate. As mentioned above, pressing on the inside and outside of 5, respectively,
Therefore, the bowl-shaped curved portion of the suction plate 5 is completely flattened and does not float above the base surface even when subjected to vibrations, etc. Therefore, the suction action of the suction plate 5 is strong, and accordingly, the magnet 4 is also located close to the base surface, and the suction effect is sufficiently obtained, so in any case, a stable and strong adhesive mounting state can be formed without the need for any adhesive, mounting metal fittings, or drilling. Moreover, sufficient adsorption action can be obtained with a relatively small magnet.
These allow it to be freely set at any position on the base surface 10, and are easy to handle. That is, when setting the suction to the base surface 10, the support seat 3
When a slight pressing force is applied to the annular protrusions 11, 1, the adsorption force of the magnet 4 acts and the set state as shown in FIG. 1 can be automatically and accurately formed.
Pressing as in step 2 sufficiently increases the degree of vacuum. Furthermore, the suction set state in which the degree of vacuum is increased as described above does not change even due to vibrations when the vehicle is running, and effectively prevents rainwater and the like from entering into the suction plate area. For removal, by partially pushing up the circumferential side 5b of the suction plate 5 that protrudes from the mounting seat 3 with a fingertip, etc., the vacuum can be easily broken and the suction plate 5 removed, regardless of the stable and strong suction state described above. .

In the illustrated example, the mount 9 is capacitively grounded via the coating (insulating) on the base surface 10, so the base surface 10 of the vehicle body, etc., may be soiled or damaged in order to be grounded. Nor.

As described above, the antenna according to the present invention can be mounted without damaging either the vehicle body or its coating, and moreover, the annular protrusions 11 and 12 on the support seat 3 prevent the suction plate from being attached. It is possible to always effectively increase the adsorption vacuum level by the magnet 5, and thereby ensure an appropriate adsorption relationship by the magnet 4. Considerable adsorption force can be obtained with a relatively small magnet, and these are compatible with each other. This is a highly effective idea in practical terms because it can provide an antenna mounting mechanism that is low cost, easy to handle, and allows stable mounting.

[Brief explanation of drawings]

The drawings show embodiments of the invention,
Fig. 1 is a general partially cutaway side view showing the suction-mounted state of the antenna mechanism according to the present invention, Fig. 2 is a partially cutaway slope view of the suction plate, and Fig. 3 shows another embodiment according to the present invention. This is a general slope diagram. However, in these drawings, 1 is an antenna,
2 is a base body, 3 is a support seat, 4 is a magnet, 5 is an adsorption plate, 10 is a base body surface, 11 is a first annular protrusion, and 12 is a second annular protrusion.

Claims (1)

[Claims for Utility Model Registration] 1. A recessed part formed in the center of the suction plate is housed in the support seat to which the antenna base is attached, and a ring-shaped magnet is mounted inside the recessed part using a mounting bracket. , wherein the suction plate is clamped and fixed to be attached to a body surface of a base part such as a car body, and the support seat has a base part body surface having a portion proximate to the recessed part of the suction plate on its inner surface. An antenna support adapted to be mounted on a vehicle body, etc., characterized in that a first annular protrusion for pressing against the outer periphery of the first annular protrusion and a second annular protrusion for press-contacting the circumferential side of a suction plate on the outer periphery of the first annular protrusion are integrally formed. seat. 2. A support seat for an antenna to be mounted on a vehicle body, etc., as set forth in claim 1 of the utility model registration claim, in which the antenna base and the support seat are integrally formed. 3. Support for an antenna that is attached to a vehicle body, etc., as set forth in claim 1 of the utility model registration claim, in which at least a part of the circumferential side of the suction plate projects outside the second annular protrusion to serve as a removal operation part. seat.