Communications: radio wave antennas – Antennas – With vehicle
Patent
1997-07-21
1999-09-28
Wong, Don
Communications: radio wave antennas
Antennas
With vehicle
343725, 343872, H01Q 132
Patent
active
059595850
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is based on a vehicle antenna arrangement and an auxiliary vehicle antenna.
From German Patent DE 40 05 030 C2, a vehicle antenna is already known in which an antenna base can be mounted on a vehicle body. The antenna base comprises a solid, rigid insulating material. It is secured to the body via a screw connection. The receiver connection cable is also screwed onto the antenna base.
SUMMARY OF THE INVENTION
In accordance with the present invention in a vehicle antenna arrangement a further antenna cable passes through an opening of a tube extending through a base plate which carries an antenna base and is connectable to a vehicle body, the further antenna cable passes through a recess of a retaining plate into a housing connected to the retaining plate through an opening in the housing, and the housing accommodates a further antenna system connected to the further antenna cable.
When the vehicle antenna arrangement is designed in accordance with the present invention it has the advantage over the prior art that a further antenna system can be adapted to a vehicle antenna without making an additional bore in the vehicle body. This kind of retrofit to add a further antenna system can therefore be attained inexpensively and simply. Since bores in the body are vulnerable to corrosion, one additional source of corrosion is avoided by the invention.
It can be considered a further advantage that the vehicle's value is upheld, because the antenna cable for the vehicle antenna and the further antenna system are introduced jointly through the existing bore.
An especially advantageous feature is the encasing of the housing for the further antenna system with the antenna base, because it protects the vehicle antenna arrangement against the effects of weather.
An advantage is provided with the use of the sealing gasket, since once again it protects against the effects of weather and above all prevents corrosion of the bore in the body.
Another advantage is provided with the common securing of the vehicle antenna and the further antenna system to the vehicle body, because in this way additional material and hence costs are saved.
A further advantage is provided by the fact that the base plate rests on the retaining plate via the protrusion, because in this way a defined ground contact is established.
The diameter of the further antenna cable can be less than the spacing between the vehicle body and the base plate, which has the advantage that the further antenna cable is not squeezed between the base plate and the vehicle body and is thus protected against damage.
The casing can be joined to the housing, as a result of which regions of the auxiliary vehicle antenna located outside the housing are protected against the effects of weather.
BRIEF DESCRIPTION OF THE DRAWING
One exemplary embodiment of the invention is shown in the drawing and described in further detail in the ensuing description. FIG. 1 is a vertical section through a vehicle antenna arrangement, comprising a vehicle antenna and an auxiliary vehicle antenna, and FIG. 2 shows a plan view of the vehicle antenna arrangement.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIG. 1, reference numeral 1 indicates a vehicle body. The vehicle body has an aperture 20 through which a tube 15 of circular cross section is extended. The tube 15 is extended outside the vehicle body through a base plate 10 with which it forms a structural unit. The antenna base 5 of a vehicle antenna 2 is mounted on the base plate 10. The tube 15, base plate 10 and antenna base 5 may for instance all comprises a single cast part. Inside the vehicle body 1, the tube 15 has a male thread 70. Via a nut 75 that can be screwed onto the male thread 70, the vehicle antenna 2 can be secured to the vehicle body 1. A first and second antenna cables 25 and 26 are passed through the tube 15 to the antenna base 5. By way of example, the first antenna cable 25 serves the purpose of radio reception, while the second antenna cable 25 is intended for the mo
REFERENCES:
patent: 3503070 (1970-03-01), Kompfner
patent: 4868577 (1989-09-01), Wingard
patent: 5146232 (1992-09-01), Nishikawa et al.
patent: 5706015 (1998-01-01), Chen et al.
patent: 5757327 (1998-05-01), Yajima et al.
Ho Tan
Robert & Bosch GmbH
Striker Michael J.
Wong Don
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