EP0245649B1 - Protecting device for parabolic antennas - Google Patents
Protecting device for parabolic antennas Download PDFInfo
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- EP0245649B1 EP0245649B1 EP87105097A EP87105097A EP0245649B1 EP 0245649 B1 EP0245649 B1 EP 0245649B1 EP 87105097 A EP87105097 A EP 87105097A EP 87105097 A EP87105097 A EP 87105097A EP 0245649 B1 EP0245649 B1 EP 0245649B1
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- European Patent Office
- Prior art keywords
- parts
- shell
- spherical
- equatorial plane
- hood
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
Definitions
- the invention relates to a device for protecting parabolic antennas in the form of an essentially spherical shell-shaped hood enclosing the antenna.
- aperture radiators or area radiators are used for radiating and receiving electromagnetic vibrations, in which a wave is emitted in the opening plane of the bowl-shaped antenna.
- the simplest form is the parabolic antenna, which is extremely powerful, but is at risk of snow and ice crystals being deposited in the parabolic dish under the appropriate weather conditions, the crystals of which lead to reflection. This sometimes significantly disrupts antenna operation.
- Large antenna systems e.g. from WO-A 8 201 278 enclose such parabolic antennas with a spherical shell-like housing, the construction of which, however, is complex and cannot be transferred to the cladding of a simple, comparatively small parabolic antenna.
- the invention provides that the hood consists of a number of equally large spherical-triangular shell parts, which in turn form one Equatorial plane perpendicular to its axis and possibly divided into further planes parallel to this plane, these further division planes being arranged at the same distance from both sides of the equatorial plane.
- the measure according to the invention creates the structural conditions for the design of such a covering for parabolic antennas, on the basis of which the hood can be manufactured in a rational manner.
- this is a basic requirement for the further spread of such antennas.
- the roughly spherical-shell-shaped shape of the hood is broken down into spherical-shell-shaped shell parts, which, however, generally require an excessively high production outlay due to their size. Therefore, each shell part is broken down into further individual elements, although the arrangement ensures that only slightly differently shaped parts are obtained.
- each shell part in its further embodiment, is divided into four parts, three of which are each of the same shape, by three parting planes, to design the entire hood from two different components. It is obvious that a highly efficient production is then guaranteed, which enables the wide use of such claddings and thus the parabolic antennas receiving them.
- Each shell part consists of two larger parts colliding in the equatorial plane, each with four corners and two further parts, which have the tips of the spherical-shell parts and basically have a triangular shape.
- Such components can be manufactured in large numbers and / or kept in stock until they are called up for use.
- a particularly simple embodiment of the invention is characterized in that each spherical-shell-shaped shell part is only curved around an axis lying in the equatorial plane. In the equatorial plane, the outer contour is a straight line. If such shell parts are put together, the hood is given a polygonal shape when viewed from above. Training as an octagon is advantageous. In the case of larger hoods, twelve-sided or hexagonal shapes are also attached, without this having to be a limitation.
- each shell part has a curvature corresponding to a spherical surface.
- Such a shell part then forms a spherical triangle of a spherical shell, and the hood is then essentially spherical shell-shaped. Which embodiment is preferred depends entirely on the circumstances of the individual case.
- each shell part and the shell parts in turn can be assembled in different ways.
- the invention first provides that the shell parts and their parts are joined together by a tongue and groove connection.
- This training aims at the idea explained above to produce the hood from the smallest possible number of individual parts. If only tongue and groove connections are used on all abutting edges of the parts, three different individual parts are required to design such a ball, because one of the two middle parts of each spherical shell part then contains a groove on the adjacent edge, while on the other part a spring is formed.
- the connection can also be carried out in such a way that the shell parts and their partial elements have a groove on their circumference, a connecting fold being inserted into the mutually directed grooves of two parts lying against one another.
- Mixed forms of such connections can of course also be provided in order to make it possible to achieve the minimum number of two different sub-elements for the construction of a hood if each shell part consists of four parts.
- the shell parts consist of a foamed plastic with an outer support made of a fiber-reinforced plastic. This allows the construction to be kept extremely light, while at the same time achieving maximum strength. At the same time, high resistance to weather influences is achieved. In any case, such a hood is free of metallic components that could interfere with antenna operation. Any other plastic can also take the place of a foamed plastic. Possibly. the outer surface can be so dense and the strength of the art material so large that the outer fiber-reinforced synthetic resin pad can be dispensed with entirely. It is within the scope of the invention to manufacture the shell parts from fiber-reinforced plastic.
- the shell parts adjacent to the poles form a unit in the form of a spherical shell section.
- the number of individual parts of the spherical shell-shaped hood is significantly reduced and, at the same time, the strength is increased in that the regions of the sphere near the poles each form a unit.
- the shell parts and the two spherical sections can in turn be joined together by a tongue and groove connection.
- the hood 1 consists of a spherical shell-shaped wall, which in the embodiment shown here is divided into eight shell parts 2. These are arranged around the imaginary axis 3. In the equatorial plane of this ball neck, each shell part 2 has an angle 4 of 45 ° , as can be seen in FIG. 3.
- each of the spherical-shell-shaped shell parts 2 is subdivided into a plurality of parting planes, one of which is the equatorial plane 5 of the approximated ball. At an equal distance 6 from this equatorial plane 5 there are two further division planes 7 on both sides. As a result, the shell part 2 is broken down into four individual parts.
- each shell part 2 is only curved in one plane, the axis of curvature in the equatorial plane 5 lies.
- the plane of curvature also contains axis 3 of the sphere.
- the outer surface 10 of each shell part 2 is flat, as can be seen in FIG. 3. Therefore the hood 1 forms an octagon here. The .
- each shell part 2 has an outer surface 10 which is curved in accordance with a spherical surface, ie the outer surface 10 of shell parts 2 is also curved in the equatorial plane according to FIG. 6.
- each spherical-shell-shaped shell part 2 have a tongue 13 on the edge 12 axially adjacent to the part 9, which engages in a groove 14 on the speaking edge 15 of the adjacent outer shell part 9.
- each part 8 is likewise provided with a groove 17, while the opposite side edge 18 has a corresponding groove 19.
- one side edge 20 of the parts 9 is provided with a groove 21, whereas the opposite side edge 22 carries a tongue 23.
- the upper of the partial elements 8 has a groove 26 on the edge 25 lying in the equatorial plane 5, while the lower partial element 8 'carries a tongue 27 on the corresponding edge 25, which engages in the groove 26 of the sub-element 8 is determined.
- This feature alone distinguishes the two sub-elements 8 and 8 'from one another.
- both parts 8 could each have a groove 26 on this side edge 25 facing each other, into which a connecting fold would then be inserted.
- the two inner sub-elements 8 would be identical.
- the shell parts 2 of the two embodiments of the hoods 1 consist of a wall 28 made of foamed plastic, on the outside of which a support layer 29 made of a fiber-reinforced synthetic resin lies in a material connection.
- the invention is directed to the basic design of a hood enclosing a parabolic antenna, the reproduction of fastening elements and insertion openings for the wearer of the parabolic antenna to be accommodated by the hood 1 has been dispensed with.
- each shell part 2 has been left as a unit in the form of a spherical shell 30, so that there is a spherical shell 30 or spherical cap on the two poles of the sphere.
Abstract
Description
Die Erfindung richtet sich auf eine Vorrichtung zum Schutz von Parabolantennen in Form einer die Antenne umschließenden, im wesentlichen kugelschalenförmigen Haube.The invention relates to a device for protecting parabolic antennas in the form of an essentially spherical shell-shaped hood enclosing the antenna.
Zum Abstrahlen und Empfang elektromagnetischer Schwingungen verwendet man neben LinearAntennen sogenannte Aperturstrahler oder Flächenstrahler, bei denen eine Welle in der Öffnungsebene der schalenförmigen Antenne abgestrahlt wird. Einfachste Form ist die Parabolantenne, die zwar höchst leistungsfähig ist, aber der Gefahr unterliegt, daß sich in der Parabolschale unter entsprechenden Witterungsbedingungen Schnee- und Eiskristalle ablagern, deren Kristalle zu einer Reflektion führen. Dadurch wird der Antennenbetrieb mitunter erheblich gestört. Große Antennenanlagen, wie z.B. aus WO-A 8 201 278 umschließen solche Parabolantennen mit einem kugelschalenartigen Gehäuse, dessen Konstruktion allerdings aufwendig ist und nicht auf die Verkleidung einer einfachen, vergleichsweise kleinen Parabolantenne übertragen werden kann. Weil entsprechende Verkleidungen für solche dem Allgemeingebrauch zugänglichen Parabolantennen auf dem Markt praktisch nicht verfügbar sind, sind solche Antennen vergleichsweise wenig gebräuchlich. Um diesem Mangel abzuhelfen und einen wirksamen Schutz von Parabolantennen gegen Störungen durch Schnee- und Eiskristallablagerungen auch bei für den Allgemeingebrauch geeigneten kleineren Antennnen zu gewährleisten, sieht die Erfindung vor, daß die Haube aus einer Anzahl von gleichgroßen kugelzweieckförmigen Schalenteilen besteht, die wiederum in einer zu ihrer Achse senkrechten Äquatorialebene und ggf. in weiteren zu dieser Ebene parallelen Ebenen unterteilt sind, wobei diese weiteren Teilungsebenen in einem gleichen Abstand zu beiden Seiten der Äquatorialebene angeordnet sind.In addition to linear antennas, so-called aperture radiators or area radiators are used for radiating and receiving electromagnetic vibrations, in which a wave is emitted in the opening plane of the bowl-shaped antenna. The simplest form is the parabolic antenna, which is extremely powerful, but is at risk of snow and ice crystals being deposited in the parabolic dish under the appropriate weather conditions, the crystals of which lead to reflection. This sometimes significantly disrupts antenna operation. Large antenna systems, e.g. from WO-A 8 201 278 enclose such parabolic antennas with a spherical shell-like housing, the construction of which, however, is complex and cannot be transferred to the cladding of a simple, comparatively small parabolic antenna. Because corresponding cladding for such parabolic antennas which are accessible to general use are practically not available on the market, such antennas are comparatively little used. In order to remedy this deficiency and to ensure effective protection of parabolic antennas against interference from snow and ice crystal deposits, even in the case of smaller antennas suitable for general use, the invention provides that the hood consists of a number of equally large spherical-triangular shell parts, which in turn form one Equatorial plane perpendicular to its axis and possibly divided into further planes parallel to this plane, these further division planes being arranged at the same distance from both sides of the equatorial plane.
Durch die erfindungsgemäße Maßnahme werden die baulichen Voraussetzungen für die Gestaltung einer solchen Verkleidung von Parabolantennen geschaffen, aufgrund deren die Haube in rationeller Weise gefertigt werden kann. Dies ist aber eine Grundvoraussetzung für eine weitere Verbreitung solcher Antennen. Zunächst wird die etwa kugelschalenförmige Gestalt der Haube in kugelzweieckförmige Schalenteile aufgegliedert, die allerdings in der Regel aufgrund ihrer Größe einen übermäßig hohen Fertigungsaufwand erfordern. Deshalb wird ein jedes Schalenteil in weitere Einzelelemente zergliedert, wobei allerdings die Anordnung gewährleistet, daß nur wenig unterschiedlich gestaltete Teile anfallen. Im einfachsten Fall ermöglicht es die Erfindung dann, wenn in ihrer weiteren Ausgestaltung jedes Schalenteil durch drei Teilungsebenen in vier Teile, davon je zwei von gleicher Gestalt, unterteilt ist, die gesamte Haube aus zwei verschiedenen Bauteilen zu gestalten. Es liegt auf der Hand, daß dann eine höchst rationelle Fertigung gewährleistet ist, die den breiten Einsatz solcher Verkleidungen und damit der sie aufnehmenden Parabolantennen ermöglicht. Ein jedes Schalenteil besteht aus zwei in der Äquatorialebene zusammenstoßenden größeren Teilen mit je vier Ecken und zwei weiteren Teilen, die die Spitzen der kugelzweieckförmigen Schalenteile aufweisen und im Grunde Dreieckgestalt aufweisen. Solche Bauteile können in großer Anzahl gefertigt und/oder auf Lager gehalten werden, bis sie zum Einsatz abgerufen werden.The measure according to the invention creates the structural conditions for the design of such a covering for parabolic antennas, on the basis of which the hood can be manufactured in a rational manner. However, this is a basic requirement for the further spread of such antennas. First, the roughly spherical-shell-shaped shape of the hood is broken down into spherical-shell-shaped shell parts, which, however, generally require an excessively high production outlay due to their size. Therefore, each shell part is broken down into further individual elements, although the arrangement ensures that only slightly differently shaped parts are obtained. In the simplest case, the invention makes it possible, in its further embodiment, for each shell part to be divided into four parts, three of which are each of the same shape, by three parting planes, to design the entire hood from two different components. It is obvious that a highly efficient production is then guaranteed, which enables the wide use of such claddings and thus the parabolic antennas receiving them. Each shell part consists of two larger parts colliding in the equatorial plane, each with four corners and two further parts, which have the tips of the spherical-shell parts and basically have a triangular shape. Such components can be manufactured in large numbers and / or kept in stock until they are called up for use.
Eine besonders einfache Ausführungsform der Erfindung zeichnet sich dadurch aus, daß jedes kugelzweieckförmige Schalenteil nur um eine, in der Aquatorialebene liegende Achse gekrümmt ist. In der Äquatorialebene ist die Außenkontur eine gerade Linie. Werden solche Schalenteile zusammengesetzt, erhält die Haube eine, in Draufsicht, vieleckige Form. Vorteilhaft ist die Ausbildung als Achteck. Bei größeren Hauben sind auch Zwölfeck- oder Sechzehneck-Formen angebracht, ohne daß dies eine Beschränkung darstellen müßte.A particularly simple embodiment of the invention is characterized in that each spherical-shell-shaped shell part is only curved around an axis lying in the equatorial plane. In the equatorial plane, the outer contour is a straight line. If such shell parts are put together, the hood is given a polygonal shape when viewed from above. Training as an octagon is advantageous. In the case of larger hoods, twelve-sided or hexagonal shapes are also attached, without this having to be a limitation.
Eine alternative Ausführungsform hierzu geht davon aus, daß jedes Schalenteil eine einer Kugelfläche entsprechende Krümmung aufweist. Ein solches Schalenteil bildet dann ein Kugelzweieck einer Kugelschale, und die Haube ist dann tatsächlich im wesentlichen kugelschalenförmig. Welcher Ausführungsform jeweils der Vorzug gegeben wird, richtet sich ganz nach den Umständen des Einzelfalls.An alternative embodiment assumes that each shell part has a curvature corresponding to a spherical surface. Such a shell part then forms a spherical triangle of a spherical shell, and the hood is then essentially spherical shell-shaped. Which embodiment is preferred depends entirely on the circumstances of the individual case.
Die einzelnen Teilelemente eines jeden Schalenteils und die Schalenteile ihrerseits können auf verschiedene Weise zusammengefügt werden. Die Erfindung sieht zunächst vor, daß die Schalenteile und deren Teile durch eine Nut-Feder-Verbindung zusammengefügt sind. Diese Ausbildung zielt auf den oben erläuterten Gedanken ab, die Haube aus der geringstmöglichen Zahl von Einzelteilen herzustellen. Werden ausschließlich Nut-Feder-Verbindungen an allen aneinanderstoßenden Kanten der Teile verwendet, sind drei verschiedene Einzelteile erforderlich, um eine solche Kugel zu gestalten, denn eines der beiden Mittelteile eines jeden kugelzweieckförmigen Schalenteils enthält dann an der aneinandergrenzenden Kante eine Nut, während am anderen Teil eine Feder ausgebildet ist. Es kann aber auch die Verbindung so ausgeführt sein, daß die Schalenteile und deren Teilelemente an ihrem Umfang eine Nut aufweisen, wobei in die gegeneinandergerichteten Nuten zweier aneinander anliegender Teile ein Verbindungsfalz eingesetzt ist. Natürlich können auch Mischformen solcher Verbindungen vorgesehen sein, um es zu ermöglichen, die Mindestzahl von zwei verschiedenartigen Teilelementen zum Aufbau einer Haube zu erreichen, wenn jedes Schalenteil aus vier Teilen besteht.The individual sub-elements of each shell part and the shell parts in turn can be assembled in different ways. The invention first provides that the shell parts and their parts are joined together by a tongue and groove connection. This training aims at the idea explained above to produce the hood from the smallest possible number of individual parts. If only tongue and groove connections are used on all abutting edges of the parts, three different individual parts are required to design such a ball, because one of the two middle parts of each spherical shell part then contains a groove on the adjacent edge, while on the other part a spring is formed. However, the connection can also be carried out in such a way that the shell parts and their partial elements have a groove on their circumference, a connecting fold being inserted into the mutually directed grooves of two parts lying against one another. Mixed forms of such connections can of course also be provided in order to make it possible to achieve the minimum number of two different sub-elements for the construction of a hood if each shell part consists of four parts.
Es liegt im Rahmen der Erfindung. daß die Schalenteile aus einem geschäumten Kunststoff mit einer äußeren Auflage aus einem faserverstärkten Kunststoff bestehen. Dadurch kann die Konstruktion äußerst leicht gehalten werden, während zugleich ein Höchstmaß an Festigkeit erreicht wird. Zugleich wird dadurch eine hohe Widerstandsfähigkeit gegen Witterungseinflüsse erzielt. In jedem Fall ist eine solche Haube frei von metallischen Bauteilen, welche den Antennenbetrieb stören könnten. An die Stelle eines geschäumten Kunststoffs kann auch jeder andere Kunststoff treten. Ggf. kann die Außenfläche so dicht und die Festigkeit des Kunststoffs so groß sein, daß auf die äußere faserverstärkte Auflage aus Kunstharz ganz verzichtet werden kann. Es liegt im Bereich der Erfindung, die Schalenteile aus faserverstärktem Kunststoff zu fertigen.It is within the scope of the invention. that the shell parts consist of a foamed plastic with an outer support made of a fiber-reinforced plastic. This allows the construction to be kept extremely light, while at the same time achieving maximum strength. At the same time, high resistance to weather influences is achieved. In any case, such a hood is free of metallic components that could interfere with antenna operation. Any other plastic can also take the place of a foamed plastic. Possibly. the outer surface can be so dense and the strength of the art material so large that the outer fiber-reinforced synthetic resin pad can be dispensed with entirely. It is within the scope of the invention to manufacture the shell parts from fiber-reinforced plastic.
Eine weitere Ausgestaltung der Erfindung besteht darin, daß die den Polen anliegenden Schalenteile eine Einheit in Form eines Kugelschalenabschnitts bilden. In diesem Fall vermindert sich die Zahl der Einzelteile der kugelschalenförmigen Haube wesentlich und wird zugleich die Festigkeit dadurch erhöht, daß die polnahen Bereiche der Kugel je eine Einheit bilden. Die Schalenteile und die beiden Kugelabschnitte können wiederum durch eine Nut-Feder-Verbindung zusammengefügt sein.Another embodiment of the invention is that the shell parts adjacent to the poles form a unit in the form of a spherical shell section. In this case, the number of individual parts of the spherical shell-shaped hood is significantly reduced and, at the same time, the strength is increased in that the regions of the sphere near the poles each form a unit. The shell parts and the two spherical sections can in turn be joined together by a tongue and groove connection.
Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung einiger bevorzugter Ausführungsformen der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:
- Fig. eine erste Ausführungsform der Haube in perspektivischer vereinfachter Darstellung;
- Fig. 2 einen Schnitt etwa nach Linie II - in Fig. 1;
- Fig. 3 einen Schnitt durch die Aquatorialebene nach Linie 111-111 in Fig. 1;
- Fig. 4 eine andere Ausführungsform der Erfindung in einer der Fig. 1 entsprechenden perspektivischen Darstellung;
- Fig. 5 einen Schnitt nach Linie V - V in Fig. 4;
- Fig. 6 einen Schnitt durch die Äquatorialebene nach Linie VI - VI in Fig. 4 und
- Fig. 7 die in eine Ebene projizierte Draufsicht auf ein dreifach unterteiltes Schalenteil;
- Fig. 8 eine abgewandelte Ausführungsform der Erfindung in einer Seitenansicht.
- Fig. A first embodiment of the hood in a perspective simplified representation;
- Figure 2 is a section approximately along line II - in Fig. 1.
- 3 shows a section through the equatorial plane along line 111-111 in Fig. 1.
- FIG. 4 shows another embodiment of the invention in a perspective view corresponding to FIG. 1;
- 5 shows a section along line V - V in Fig. 4.
- 6 shows a section through the equatorial plane along line VI-VI in FIGS. 4 and
- 7 shows the plan view, projected into a plane, of a triple-divided shell part;
- Fig. 8 shows a modified embodiment of the invention in a side view.
Die Haube 1 besteht aus einer kugelschalenförmigen Wandung, die bei der hier wiedergegebenen Ausführungsform in acht Schalenteile 2 untergliedert ist. Diese sind um die gedachte Achse 3 angeordnet. In der Äquatorialebene dieser Kugelhale nimmt jeder Schalenteil 2 einen Winkel 4 von 45° ein, wie Fig. 3 erkennen läßt. Jeder der kugelzweieckförmigen Schalenteile 2 ist bei der wiedergegebenen Ausführungsform in mehren Teilungsebenen unterteilt, von denen eine die Äquatorialebene 5 der angenäherten Kugel ist. In gleichem Abstand 6 von dieser Äquatorialebene 5 befinden sich zu beiden Seiten zwei weitere Teilungsebenen 7. Dadurch wird der Schalenteil 2 in vier Einzelteile zerlegt. Hiervon sind die beiden Teile 8 beiderseits der Äquatorialebene 5 von gleicher Größe und gleicher viereckiger Gestalt. Die sich zur Achse 3 der Kugel hin anschließenden äußeren Teile 9 jedes Schalenteils 2 sind wiederum untereinander gleich groß und von ebenfalls gleicher dreieckiger Gestalt. Eine derartige Kugel setzt sich somit aus nur zwei verschiedenen Bauteilen zusammen, nämlich den Teilen 8 und den Teilen 9. Bei der in den Fig. 1 bis 3 wiedergegebenen Ausführungsform ist jedes Schalenteil 2 nur in einer Ebene gekrümmt, wobei die Krümmungsachse in der Äquatorialebene 5 liegt. Die Krümmungsebene enthält auch die Achse 3 der Kugel. In der Äquatorialebene ist die Außenfläche 10 eines jeden Schalenteils 2 eben, wie dies Fig. 3 erkennen läßt. Deshalb bildet hier die Haube 1 ein Achteck. Die . Ausführungsform nach den Fig. 4 bis 6 ist von prinzipiell gleichem Aufbau, doch weist hier ein jedes Schalenteil 2 eine einer Kugelfläche entsprechend gekrümmte Außenfläche 10 auf, d.h. auch der Äquatorialebene nach Fig. 6 ist die Außenfläche 10 Schalenteile 2 gekrümmt.The hood 1 consists of a spherical shell-shaped wall, which in the embodiment shown here is divided into eight
Die mittleren Teilelemente 8 eines jeden kugelzweieckförmigen Schalenteils 2 weisen an der axial an das Teil 9 angrenzenden Kante 12 eine Feder 13 auf, die in eine Nut 14 an der sprechenden Kante 15 des angrenzenden äußeren Schalenteils 9 eingreift. An der einen in Umfangsrichtung der Haube 1 weisenden Seitenkante 16 ist jedes Teil 8 ebenfalls mit einer Nut 17 versehen, während die gegenüberliegende Seitenkante 18 eine entsprechende Nut 19 aufweist. In entsprechender Weise ist die eine Seitenkante 20 der Teile 9 mit einer Nut 21 versehen, wohingegen die gegenüberliegende Seitenkante 22 eine Feder 23 trägt. Bei der in Fig. 7 wiedergegebenen Ausführungsform weist das obere der Teilelemente 8 an der in der Äquatorialebene 5 liegenden Kante 25 eine Nut 26 auf, während das untere Teilelement 8' an der entsprechenden Kante 25 eine Feder 27 trägt, die zum Eingriff in die Nut 26 des Teilelements 8 bestimmt ist. Allein dieses Merkmal unterscheidet die beiden Teilelemente 8 und 8' voneinander.The
Stattdessen könnten aber an dieser einander zugekehrten Seitenkante 25 beide Teile 8 je eine Nut 26 aufweisen, in die dann ein Verbindungsfalz eingelegt würde. In diesem wären die beiden inneren Teilelemente 8 identisch gestaltet.Instead, however, both
Die Schalenteile 2 der beiden Ausführungsformen der Hauben 1 bestehen aus einer Wandung 28 aus geschämtem Kunststoff, auf welchem außenseitig in stoffschlüssiger Verbindung eine Auflageschicht 29 aus einem faserverstärkten Kunstharz aufliegt.The
Da sich die Erfindung auf die prinzipielle Gestaltung einer eine Parabolantenne umschließenden Haube richtet, ist auf die Wiedergabe von Befestigungselementen sowie Einführöffnungen für den Träger der von der Haube 1 aufzunehmenden Parabolantenne verzichtet worden.Since the invention is directed to the basic design of a hood enclosing a parabolic antenna, the reproduction of fastening elements and insertion openings for the wearer of the parabolic antenna to be accommodated by the hood 1 has been dispensed with.
Die Fig. 8 gibt eine abgewandelte Ausführungsform wieder, deren Grundaufbau den vorbeschriebenen Ausführungsformen entspricht. Jedoch sind bei dieser Ausbildung die äußeren Teile 9 jedes Schalenteils 2 als Einheit in Form einer Kugelschale 30 belassen worden, so daß sich an den beiden Polen der Kugel je eine Kugelschale 30 bzw. Kugelkalotte befinden.8 shows a modified embodiment, the basic structure of which corresponds to the previously described embodiments. However, in this embodiment, the
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT87105097T ATE59249T1 (en) | 1986-05-09 | 1987-04-07 | DEVICE FOR PROTECTING PARABOLIC ANTENNAS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863615645 DE3615645A1 (en) | 1986-05-09 | 1986-05-09 | DEVICE FOR PROTECTING PARABOLANTENNAS |
| DE3615645 | 1986-05-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0245649A2 EP0245649A2 (en) | 1987-11-19 |
| EP0245649A3 EP0245649A3 (en) | 1988-01-27 |
| EP0245649B1 true EP0245649B1 (en) | 1990-12-19 |
Family
ID=6300463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87105097A Expired - Lifetime EP0245649B1 (en) | 1986-05-09 | 1987-04-07 | Protecting device for parabolic antennas |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0245649B1 (en) |
| AT (1) | ATE59249T1 (en) |
| DE (2) | DE3615645A1 (en) |
| ES (1) | ES2023136B3 (en) |
| GR (1) | GR3001217T3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2881884A1 (en) * | 1987-01-22 | 2006-08-11 | Gerard Bony | Radome for microwave antenna protection, has zones covered with quasi-uniform cross-hatched network of meshes, where meshes have dimensions, shapes, arrangement and/or constitutions that vary from one location to other of radome surface |
| FR3025657B1 (en) * | 2014-09-08 | 2018-01-26 | Ineo Defense | SPHERICAL RADOME FOR PROTECTING A TELECOMMUNICATION ANTENNA AND ANTENNA THEREFOR |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3427626A (en) * | 1965-11-12 | 1969-02-11 | Whittaker Corp | Rigid sectional radome and method for erecting |
| DE3037727A1 (en) * | 1980-10-06 | 1982-05-19 | G + H Montage Gmbh, 6700 Ludwigshafen | FACADE ELEMENT TO PROTECT RADIO TECHNICAL SYSTEMS |
| DE3037726A1 (en) * | 1980-10-06 | 1982-05-19 | G + H Montage Gmbh, 6700 Ludwigshafen | FAIRING FOR PROTECTING RADIO TECHNICAL SYSTEMS, ESPECIALLY ANTENNAS |
-
1986
- 1986-05-09 DE DE19863615645 patent/DE3615645A1/en not_active Withdrawn
-
1987
- 1987-04-07 ES ES87105097T patent/ES2023136B3/en not_active Expired - Lifetime
- 1987-04-07 DE DE8787105097T patent/DE3766748D1/en not_active Expired - Fee Related
- 1987-04-07 EP EP87105097A patent/EP0245649B1/en not_active Expired - Lifetime
- 1987-04-07 AT AT87105097T patent/ATE59249T1/en not_active IP Right Cessation
-
1990
- 1990-12-20 GR GR90400981T patent/GR3001217T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ATE59249T1 (en) | 1991-01-15 |
| EP0245649A2 (en) | 1987-11-19 |
| ES2023136B3 (en) | 1992-01-01 |
| DE3615645A1 (en) | 1987-11-12 |
| EP0245649A3 (en) | 1988-01-27 |
| GR3001217T3 (en) | 1992-07-30 |
| DE3766748D1 (en) | 1991-01-31 |
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