EP0049523B1 - Cover for the protection of radio installations, in particular antennas - Google Patents

Cover for the protection of radio installations, in particular antennas Download PDF

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Publication number
EP0049523B1
EP0049523B1 EP81108000A EP81108000A EP0049523B1 EP 0049523 B1 EP0049523 B1 EP 0049523B1 EP 81108000 A EP81108000 A EP 81108000A EP 81108000 A EP81108000 A EP 81108000A EP 0049523 B1 EP0049523 B1 EP 0049523B1
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EP
European Patent Office
Prior art keywords
facing
reinforced plastic
supporting
supporting components
elements
Prior art date
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
Application number
EP81108000A
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German (de)
French (fr)
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EP0049523A1 (en
Inventor
Arthur Göbel
Hartmut Patschke
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G&H Montage GmbH
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G&H Montage GmbH
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Priority to AT81108000T priority Critical patent/ATE24795T1/en
Publication of EP0049523A1 publication Critical patent/EP0049523A1/en
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Publication of EP0049523B1 publication Critical patent/EP0049523B1/en
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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 cladding consisting of a plurality of facade elements for protecting radio-technical systems, according to the preamble of claim 1.
  • Such claddings which are generally constructed from a large number of facade elements, are known in principle from DE-B-1 273 023.
  • EP-A-0 031 039 which belongs to the prior art according to Art. 54 (3) EPC.
  • the main advantage of such claddings made of rigid foam is that the cladding has a very low high-frequency insertion loss, usually below 1 dB, but nevertheless has such a mechanical strength that the cladding can be self-supporting, the high-frequency losses due to reinforcements for example made of steel.
  • Larger cladding can be built from prefabricated facade elements of high homogeneity. In this way, in addition to outer wall-like claddings, tower-like claddings in the form of cylinders surrounding slim antenna masts or self-supporting domes can also be created.
  • the invention has for its object to provide a cladding of the type specified in the preamble of claim 1, in which such complex metallic support structures for an indoor crane can be avoided without disturbing increases in high-frequency losses.
  • support parts made of low-damping material namely glass fiber reinforced plastic (GRP) or hard rubber
  • GRP glass fiber reinforced plastic
  • the supporting parts are so well anchored in the rigid foam by the load-bearing flange part that they can absorb loads weighing several tons, which are introduced via the hub part.
  • the running rail for the trolley of an indoor crane is fastened, which is either held detachably or, in the case of permanent fastening, also consists of a material with low attenuation with respect to electromagnetic waves, so that it likewise does not noticeably disrupt the incoming and outgoing radiation.
  • the metallic anchoring part is first surrounded by an unfoamed plastic supporting part, for example by injection molding, and then the supporting part is foamed in, so that forces acting on the metallic anchoring element are first transmitted to the supporting part and from there flat into the foam.
  • facade elements can be sprayed with support parts in the same shape as facade elements of the same shape without Support parts, only in the former case the support parts being arranged in the form of cores in the molding space and then foamed.
  • facade elements of a particular design with such support parts throughout, which then selectively on the structure Drilling a hole can be provided with fittings for fastening the load or the like.
  • the cladding is supported on a base-side support structure 2, for example in the form of a steel substructure.
  • the cladding 1 consists of three rows 3a, 3b and 3c of facade elements 4a, 4b and 4c placed next to one another and connected to one another at the butt joints, which in each of the rows 3a, 3b and 3c lying one above the other in different planes, the respective height of the spherical dome have adapted shape.
  • the support parts 5 can be designed as GRP profiles or hard rubber parts, which have lower permeability to electromagnetic waves than the rigid foam, in particular polyurethane rigid foam of the lining 1, but the radiation is hardly compared to steel parts or the like, and only then locally to disturb.
  • the facade elements 4a, 4b and 4c are prefabricated in the injection molds and assembled at the construction site. If, as can be seen in particular from FIG. 2, the support parts 5 lie within the undisturbed outline of the respective facade element, they can simply be introduced into the mold and overmolded, so that there is practically no complication of the manufacturing process and compared to conventional facade elements 4a, 4b and 4c without support parts 5 no interference with stacking, assembly, etc. occur.
  • a fitting 6 for fastening a running rail for an outer conductor is fastened to the outside of the supporting parts 5, while fittings 7 are fastened to the inside of the dome on the supporting parts 5, to which a running rail 8 for the trolley 9 of a crane is attached.
  • the running rail 8 can be made of glass fiber reinforced plastic and thus also only very slightly interfere with the radiation.
  • the trolley 9 can be moved during operation of the antenna, not shown, which works in the interior of the dome, to a point at which minimal or no interference with the electromagnetic waves occurs. In the example, the trolley 9 can be moved under a ventilation hood 10 arranged in the apex of the dome, which lies in the radio shadow or results in an accentuated fault location anyway.
  • the trolley 9 or another load on the support parts 5 can be removed during operation of the antenna if there would otherwise be an unacceptable interference with the radio waves.
  • all or a larger number of facade elements 4a, 4b, 4c in all rows 3a, 3b and 3c or selectively only in rows that are suitable for attaching loads can be provided with support parts 5 as standard, which can then also be used for retrofitting or the like at any time are available and can be provided with a bore 14 for fittings 6 or 7 also made of glass fiber reinforced plastic or a similar, low-damping material.
  • the support part 5 shown has a hub part 13 and flange parts 11, which have openings 12 to improve the positive locking, which are penetrated by the rigid foam.
  • the hub part 13 is thickened and has a threaded bore 14 for screwing in threaded attachments 15 and 16 of the fittings 6 and 7. These in turn have screw holes 17 and 18 for fixing the running rail 8 or the outer conductor or the like Thickness ensures that fittings 6 and 7 are screwed in at an angle.
  • the load-bearing capacity of such support parts 5, for example in the form of GRP profiles, is extraordinarily high, although they are only supported in the rigid foam, which has a density of more than 200 kp / m 3 .
  • the running rail 8 illustrated in FIG. 1 made of glass fiber reinforced plastic has, for example, a load capacity of 2.5 tons.

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  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Building Environments (AREA)

Abstract

A protecting envelope for radio installations, such as antennas, is comprised of prefabricated construction elements, placed side by side so as to surround the antenna. When the presence of transporting machines with metal structures such as cranes is prohibited, a direct attachment to the envelope, which is made of a hard alveolar material, such as polyurethane, must be provided. To this effect, anchoring parts (5) made of a material poorly susceptible to influence electromagnetic waves, for example a synthetic material reinforced with fiber glass are embedded in certain elements (4c). To those anchoring parts (5) load supports (6, 7) may be attached which, as with travelling bridges (8), are also made of a synthetic material influencing only a little the transmitted waves. Although they are fixed only in the alveolar material of the elements (4c), the anchoring parts (5) may support considerably high loads.

Description

Die Erfindung betrifft eine aus einer Mehrzahl von Fassadenelementen bestehende Verkleidung zum Schutz funktechnischer Anlagen, nach dem Oberbegriff des Anspruchs 1.The invention relates to a cladding consisting of a plurality of facade elements for protecting radio-technical systems, according to the preamble of claim 1.

Derartige, in der Regel aus einer Vielzahl von Fassadenelementen aufgebaute Verkleidungen sind grundsätzlich aus der DE-B-1 273 023 bekannt. Wegen weiterer Einzelheiten wird auf die ältere, nicht veröffentlichte EP-A-0 031 039 verwiesen, die gemäss Art. 54 (3) EPÜ zum Stand der Technik zählt. Der wesentliche Vorteil solcher, aus Hartschaumstoff bestehender Verkleidungen liegt darin, dass die Verkleidung eine sehr geringe Hochfrequenz-Einfügungsdämpfung in der Regel unter 1 dB besitzt, dennoch aber eine solche mechanische Festigkeit aufweist, dass eine selbsttragende Bauweise der Verkleidung möglich ist, die Hochfrequenzverluste durch Armierungen beispielsweise aus Stahl vermeidet. Dabei kann ein Aufbau grösserer Verkleidungen aus vorgefertigten Fassadenelementen hoher Homogenität erfolgen. Auf diese Weise können neben aussenwandartigen Verkleidungen auch turmartige Verkleidungen in Form von schlanke Antennenmasten umgebenden Zylindern oder von freitragenden Kuppeln gleichermassen geschaffen werden.Such claddings, which are generally constructed from a large number of facade elements, are known in principle from DE-B-1 273 023. For further details, reference is made to the older, unpublished EP-A-0 031 039, which belongs to the prior art according to Art. 54 (3) EPC. The main advantage of such claddings made of rigid foam is that the cladding has a very low high-frequency insertion loss, usually below 1 dB, but nevertheless has such a mechanical strength that the cladding can be self-supporting, the high-frequency losses due to reinforcements for example made of steel. Larger cladding can be built from prefabricated facade elements of high homogeneity. In this way, in addition to outer wall-like claddings, tower-like claddings in the form of cylinders surrounding slim antenna masts or self-supporting domes can also be created.

Insbesondere im Falle turmartiger Verkleidungen etwa in Form von Kuppeln besteht jedoch häufig die Notwendigkeit, die Verkleidung als abstützende Wand für Antenenhalterungen, Kranhalterungen und sonstige Hilfsgeräte zu verwenden, da neben oder oberhalb der Antenne infolge der freitragenden Bauweise der Verkleidung andere Tragwerke für eine Abstützung nicht zur Verfügung stehen. Soweit es sich um Stellen im Funkschatten der Antennen handelt, kann eine solche Abstützung an Stützgerüsten aus Stahl oder dgl. problemlos erfolgen, jedoch würde dies im Bereich der Strahlung zu erheblichen Hochfrequenzverlusten und Störungen führen. Wo dies notwendig war, hat man daher derartige Stützgerüste aus Metall beweglich installiert, um sie etwa zur Abstützung einer Kranhalterung bei Reparaturarbeiten in den gewünschten Arbeitsbereich fahren zu können, während des Betriebs der Antenne jedoch im Strahlungsschatten abstellen zu können. Dies ist jedoch nicht immer möglich, da etwa Rundum-Antennen keine solche Stelle für ein störungsfreies Abstellen lassen, und darüber hinaus sind derartige verfahrbare Stützgerüste bei der notwendigen Standsicherheit und Festigkeit teuer, störanfällig und relativ umständlich und zeitraubend in der Bedienung.Particularly in the case of tower-like cladding, for example in the form of domes, there is often the need to use the cladding as a supporting wall for antenna brackets, crane brackets and other auxiliary devices, since other structures for support are not available next to or above the antenna due to the cantilevered design of the cladding To be available. As far as there are points in the radio shadow of the antennas, such support on support structures made of steel or the like can be carried out without problems, but this would lead to considerable high-frequency losses and interference in the area of radiation. Where this was necessary, support structures of metal of this type were therefore installed so that they could be moved into the desired work area, for example to support a crane bracket during repair work, but could be placed in the radiation shadow during operation of the antenna. However, this is not always possible since, for example, all-round antennas do not leave such a place for trouble-free parking, and in addition, such movable support structures are expensive, prone to malfunction and relatively cumbersome and time-consuming to operate with the necessary stability and strength.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, eine Verkleidung der im Oberbegriff des Anspruchs 1 angegebenen Gattung zu schaffen, bei der derartige aufwendige metallische Stützgerüste für einen Hallenkran ohne störenden Anstieg der Hochfrequenzverluste vermieden werden können.In contrast, the invention has for its object to provide a cladding of the type specified in the preamble of claim 1, in which such complex metallic support structures for an indoor crane can be avoided without disturbing increases in high-frequency losses.

Die Lösung dieser Aufgabe erfolgt durch die kennzeichnenden Merkmale des Anspruchs 1.This object is achieved by the characterizing features of claim 1.

Dadurch, dass Stützteile aus dämpfungsarmem Material, nämlich glasfaserverstärktem Kunststoff (GFK) oder Hartgummi eingeschäumt sind, ergibt sich an der Stelle der Stützarmierungen nur eine geringfügige Änderung der dielektrischen Eigenschaften, die, zumal infolge der lokalen Begrenzung, die durch die Verkleidung ein- oder austretende Strahlung nicht merklich stört. Die Stützteile sind durch den tragenden Flanschteil im Hartschaumstoff so gut verankert, dass sie tonnenschwere Lasten aufnehmen können, die über das Nabenteil eingeleitet werden. An der Armatur der Stützteile ist daher die Laufschiene für die Laufkatze eines Hallenkranes befestigt, die entweder abnehmbar gehalten ist oder bei dauernder Befestigung ebenfalls aus einem gegenüber elektromagnetischen Wellen dämpfungsarmen Material besteht, so dass sie ebenfalls die ein- und austretende Strahlung nicht merklich stört.Due to the fact that support parts made of low-damping material, namely glass fiber reinforced plastic (GRP) or hard rubber, are foamed in, there is only a slight change in the dielectric properties at the location of the support reinforcements, which, especially as a result of the local limitation, that occurs through the cladding Radiation does not noticeably interfere. The supporting parts are so well anchored in the rigid foam by the load-bearing flange part that they can absorb loads weighing several tons, which are introduced via the hub part. On the armature of the supporting parts, therefore, the running rail for the trolley of an indoor crane is fastened, which is either held detachably or, in the case of permanent fastening, also consists of a material with low attenuation with respect to electromagnetic waves, so that it likewise does not noticeably disrupt the incoming and outgoing radiation.

Aus der DE-A-2 323 501 ist es zwar bereits bekannt, in Schaumkunststoff Metallteile als Verankerungselemente einzubringen. Hierzu wird das metallische Verankerungsteil zunächst von einem ungeschäumten Kunststoff-Tragteil etwa durch Spritzguss umgeben, und sodann das Tragteil eingeschäumt, so dass am metallischen Verankerungselement angreifende Kräfte zunächst auf das Tragteil und von diesem flächig in den Schaumstoff übertragen werden.From DE-A-2 323 501 it is already known to introduce metal parts as anchoring elements into foam plastic. For this purpose, the metallic anchoring part is first surrounded by an unfoamed plastic supporting part, for example by injection molding, and then the supporting part is foamed in, so that forces acting on the metallic anchoring element are first transmitted to the supporting part and from there flat into the foam.

Abgesehen davon, dass die Einbettung eines metallischen Verankerungselementes im erfindungsgemässen Zusammenhang einen entsprechenden Verlustanstieg bewirken würde, ist diesem Dokument keine Anregung darauf zu entnehmen, dass, zumal bei Weglassung der metallischen Ankerelemente, mit solchen eingeschäumten Stützteilen im gattungsgemässen Zusammenhang sowohl eine Verschlechterung der dielektrischen Eigenschaften vermieden werden kann, als auch eine Abstützung schwerer Bauelemente von Hebezeugen von gegebenenfalls mehreren Tonnen Tragfähigkeit erfolgen kann. Bei der DE-A-2 323 501 geht es bezüglich in Frage kommender Anwendungen um insbesondere schwingende Beanspruchungen bei Landfahrzeugen oder Booten, die dort eingeschäumten Verstärkungselemente also zur Befestigung von Ösen, Laschen oder dergleichen dienen, deren Belastung in einer ganz anderen Grössenordnung liegt und bei denen Hochfrequenzverluste natürlich keinerlei Rolle spielen.Apart from the fact that the embedding of a metallic anchoring element in the context according to the invention would result in a corresponding increase in loss, there is no suggestion in this document that, especially when the metallic anchor elements are omitted, such foamed support parts in the generic context both avoid a deterioration in the dielectric properties can be, as well as supporting heavy components of hoists of possibly several tons load capacity. DE-A-2 323 501 is concerned with the applications in question, in particular vibrating loads on land vehicles or boats, the reinforcing elements that are foamed in there are used for fastening eyelets, tabs or the like, the load of which is of a completely different order of magnitude and where high-frequency losses of course play no role.

Wenn die Stützteile nicht über die Oberfläche der Fassadenelemente hinausragen, also beidseitig von der ungestörten Verkleidungsoberfläche überdeckt sind bzw. mit ihr bündig abschliessen, ergibt sich keinerlei Zusatzaufwand bei der Fertigung, da dann Fassadenelemente mit Stützteilen in derselben Form gespritzt werden können wie Fassadenelemente gleicher Form ohne Stützteile, wobei lediglich im ersteren Fall die Stützteile nach Art von Kernen im Formraum angeordnet und dann umschäumt werden. Ebenso ist auch möglich, Fassadenelemente bestimmter Bauform durchgehend mit derartigen Stützteilen zu versehen, die dann am Bauwerk selektiv etwa durch Anbringung einer Bohrung mit Armaturen für eine Befestigung der Last oder dgl. versehen werden können.If the support parts do not protrude beyond the surface of the facade elements, i.e. are covered on both sides by the undisturbed cladding surface or are flush with it, there is no additional effort in production, since then facade elements can be sprayed with support parts in the same shape as facade elements of the same shape without Support parts, only in the former case the support parts being arranged in the form of cores in the molding space and then foamed. Likewise, it is also possible to provide facade elements of a particular design with such support parts throughout, which then selectively on the structure Drilling a hole can be provided with fittings for fastening the load or the like.

Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer Ausführungsform anhand der Zeichnung.Further details, features and advantages of the invention result from the following description of an embodiment with reference to the drawing.

Es zeigt

  • Fig. 1 einen Vertikalschnitt durch eine kuppelförmige Verkleidung zusammen mit einem extrahierten, vergrösserten Detailausschnitt, und
  • Fig. 2 die Einzelheit aus Kreis II in Fig. 1 in vergrösserter Darstellung.
It shows
  • Fig. 1 is a vertical section through a dome-shaped covering together with an extracted, enlarged detail, and
  • Fig. 2 shows the detail from circle II in Fig. 1 in an enlarged view.

Wie die Zeichnung veranschaulicht, ist die insgesamt mit 1 bezeichnete Verkleidung auf einem bodenseitigen Tragwerk 2 beispielsweise in Form einer Stahlunterkonstruktion abgestützt. Die Verkleidung 1 besteht im Beispielsfalle aus drei Reihen 3a, 3b und 3c von nebeneinander gesetzten und an den Stossfugen miteinander verbundenen Fassadenelemente 4a, 4b und 4c, die in jeder der in Ebenen übereinander liegenden Reihen 3a, 3b und 3c unterschiedliche, der jeweiligen Höhenlage der kugelförmigen Kuppel angepasste Form besitzen.As the drawing illustrates, the cladding, generally designated 1, is supported on a base-side support structure 2, for example in the form of a steel substructure. In the example, the cladding 1 consists of three rows 3a, 3b and 3c of facade elements 4a, 4b and 4c placed next to one another and connected to one another at the butt joints, which in each of the rows 3a, 3b and 3c lying one above the other in different planes, the respective height of the spherical dome have adapted shape.

Die im Oberteil der Kuppel, in der oberen Reihe 3c vom Schnitt getroffenen Fassadenelemente 4c weisen eingeschäumte Stützteile 5 aus gegen elektromagnetische Wellen dämpfungsarmem Material auf, das jedoch relativ hohe mechanische Festigkeit besitzt. Die Stützteile 5 können als GFK-Profile oder Hartgummiteile ausgebildet sein, die zwar gegenüber dem Hartschaumstoff, insbesondere Polyurethan-Hartschaumstoff der Verkleidung 1 geringere Durchlässigkeit für elektromagnetische Wellen aufweisen, jedoch im Vergleich zu Stahlteilen oder dgl. die Strahlung dennoch kaum und auch dann nur lokal stören.The facade elements 4c hit by the cut in the upper part of the dome, in the upper row 3c, have foamed-in support parts 5 made of material which is low in damping against electromagnetic waves, but which has relatively high mechanical strength. The support parts 5 can be designed as GRP profiles or hard rubber parts, which have lower permeability to electromagnetic waves than the rigid foam, in particular polyurethane rigid foam of the lining 1, but the radiation is hardly compared to steel parts or the like, and only then locally to disturb.

Die Fassadenelemente 4a, 4b und 4c werden werkseitig in Spritzgussformen vorgefertigt und an der Baustelle montiert. Wenn, wie insbesondere aus Fig. 2 ersichtlich ist, die Stützteile 5 innerhalb der ungestörten Umrisslinien des jeweiligen Fassadenelementes liegen, können sie einfach in die Form eingebracht mit umspritzt werden, so dass sich praktisch gar keine Komplizierung des Herstellungsvorganges ergibt und gegenüber üblichen Fassadenelementen 4a, 4b und 4c ohne Stützteile 5 keinerlei Störungen bei Stapelung, Montage usw. auftreten.The facade elements 4a, 4b and 4c are prefabricated in the injection molds and assembled at the construction site. If, as can be seen in particular from FIG. 2, the support parts 5 lie within the undisturbed outline of the respective facade element, they can simply be introduced into the mold and overmolded, so that there is practically no complication of the manufacturing process and compared to conventional facade elements 4a, 4b and 4c without support parts 5 no interference with stacking, assembly, etc. occur.

Im Beispielsfalle ist an der Aussenseite der Stützteile 5 eine Armatur 6 zur Befestigung einer Laufschiene für eine Aussenleiter befestigt, während an der Innenseite der Kuppel an den Stützteilen 5 Armaturen 7 befestigt sind, an denen eine Laufschiene 8 für die Laufkatze 9 eines Kranes angehängt ist. Die Laufschiene 8 kann aus glasfaserverstärktem Kunststoff bestehen und so ebenfalls die Strahlung nur sehr geringfügig stören. Die Laufkatze 9 kann beim Betrieb der nicht näher dargestellten, im Inneren der Kuppel arbeitenden Antenne zu einer Stelle verfahren werden, an der minimale oder gar keine Störung der elektromagnetischen Wellen auftritt. Im Beispielsfalle kann die Laufkatze 9 unter eine im Scheitel der Kuppel angeordnete Lüftungshaube 10 gefahren werden, die im Funkschatten liegt bzw. ohnehin eine akzentuierte Störungsstelle ergibt.In the example, a fitting 6 for fastening a running rail for an outer conductor is fastened to the outside of the supporting parts 5, while fittings 7 are fastened to the inside of the dome on the supporting parts 5, to which a running rail 8 for the trolley 9 of a crane is attached. The running rail 8 can be made of glass fiber reinforced plastic and thus also only very slightly interfere with the radiation. The trolley 9 can be moved during operation of the antenna, not shown, which works in the interior of the dome, to a point at which minimal or no interference with the electromagnetic waves occurs. In the example, the trolley 9 can be moved under a ventilation hood 10 arranged in the apex of the dome, which lies in the radio shadow or results in an accentuated fault location anyway.

Alternativ kann die Laufkatze 9 oder auch eine sonstige Last an den Stützteilen 5 beim Betrieb der Antenne abgenommen werden, wenn sich sonst eine unzuträgliche Störung der Funkwellen ergäbe. Ebenso können etwa alle oder eine grössere Anzahl von Fassadenelementen 4a, 4b, 4c in allen Reihen 3a, 3b und 3c oder selektiv nur in für ein Anhängen von Last infragekommenden Reihen serienmässig mit Stützteilen 5 versehen werden, die dann auch für Nachrüstungen oder dgl. jederzeit zur Verfügung stehen und mit einer Bohrung 14 für Armaturen 6 oder 7 ebenfalls aus glasfaserverstärktem Kunststoff oder einem ähnlichen, dämpfungsarmen Material versehen werden können.Alternatively, the trolley 9 or another load on the support parts 5 can be removed during operation of the antenna if there would otherwise be an unacceptable interference with the radio waves. Likewise, all or a larger number of facade elements 4a, 4b, 4c in all rows 3a, 3b and 3c or selectively only in rows that are suitable for attaching loads can be provided with support parts 5 as standard, which can then also be used for retrofitting or the like at any time are available and can be provided with a bore 14 for fittings 6 or 7 also made of glass fiber reinforced plastic or a similar, low-damping material.

Das gezeigte Stützteil 5 weist ein Nabenteil 13 und Flanschteile 11 auf, welche zur Verbesserung des Formschlusses Öffnungen 12 aufweisen, die von dem Hartschaum durchdrungen werden. Das Nabenteil 13 ist verdickt und besitzt eine Gewindebohrung 14 zur Einschraubung von Gewindeansätzen 15 und 16 der Armaturen 6 bzw. 7. Diese wiederum besitzen Schraubbohrungen 17 bzw. 18 zur Fixierung der Laufschiene 8 bzw. der Aussenleiter oder dgl. Beilagscheiben 19 bzw. 20 angepasster Stärke sorgen für winkelgerechte Einschraubung der Armaturen 6 und 7.The support part 5 shown has a hub part 13 and flange parts 11, which have openings 12 to improve the positive locking, which are penetrated by the rigid foam. The hub part 13 is thickened and has a threaded bore 14 for screwing in threaded attachments 15 and 16 of the fittings 6 and 7. These in turn have screw holes 17 and 18 for fixing the running rail 8 or the outer conductor or the like Thickness ensures that fittings 6 and 7 are screwed in at an angle.

Es hat sich überraschend gezeigt, dass die Tragfähigkeit derartiger Stützteile 5 beispielsweise in Form von GFK-Profilen ausserordentlich hoch ist, obwohl sie nur im Hartschaumstoff, der ein Raumgewicht von mehr als 200 kp/m3 besitzt, abgestützt sind. Die in Fig. 1 veranschaulichte Laufschiene 8 aus glasfaserverstärktem Kunststoff besitzt beispielsweise eine Tragfähigkeit von 2,5t.It has surprisingly been found that the load-bearing capacity of such support parts 5, for example in the form of GRP profiles, is extraordinarily high, although they are only supported in the rigid foam, which has a density of more than 200 kp / m 3 . The running rail 8 illustrated in FIG. 1 made of glass fiber reinforced plastic has, for example, a load capacity of 2.5 tons.

Claims (5)

1. Facing (1), consisting of a plurality of facade members (4a, 4b, 4c), for protecting radio engineering installations, in particular antennae, from effects of the weather, the facade members which form its self-supporting, dome-shaped envelope being supported only at the bottom by a bearing structure (2) and consisting of a rigid foam material, in particular based on polyurethane, without metallic reinforcements, characterised in that supporting components (5) consisting of glass fibre-reinforced plastic or of hard rubber and having a load-bearing flange portion (11) and a hub portion (13) serving for fixing a fitting (7) are foamed into facade members (4c) in the upper part of the dome, and that the runner (8) for the trolley (9) of an indoor crane is fixed to the fitting (7).
2. Facing (1) according to Claim 1, characterised in that the hub portion (13) is made thicker than the flange portion (11) and has a threaded bore (14) for screwing in a threaded attachement (16) of the fitting (7).
3. Facing (1) according to Claim 1 or 2, characterised in that the supporting components (5) do not project beyond the undisturbed contour lines of the facade members (4c).
4. Facing (1) according to one of Claims 1 to 3, characterised in that the runner (8) supported on the supporting components (5) consists of glass fibre-reinforced plastic.
5. Facing (1) according to one of Claims 1 to 4, characterised in that the fittings (7) fixed to the supporting components (5) for bearing the runner (8) consist of glass fibre-reinforced plastic.
EP81108000A 1980-10-06 1981-10-06 Cover for the protection of radio installations, in particular antennas Expired EP0049523B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108000T ATE24795T1 (en) 1980-10-06 1981-10-06 CASING FOR THE PROTECTION OF RADIO EQUIPMENT, ESPECIALLY ANTENNAS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3037726 1980-10-06
DE19803037726 DE3037726A1 (en) 1980-10-06 1980-10-06 FAIRING FOR PROTECTING RADIO TECHNICAL SYSTEMS, ESPECIALLY ANTENNAS

Publications (2)

Publication Number Publication Date
EP0049523A1 EP0049523A1 (en) 1982-04-14
EP0049523B1 true EP0049523B1 (en) 1987-01-07

Family

ID=6113738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108000A Expired EP0049523B1 (en) 1980-10-06 1981-10-06 Cover for the protection of radio installations, in particular antennas

Country Status (4)

Country Link
EP (1) EP0049523B1 (en)
AT (1) ATE24795T1 (en)
DE (2) DE3037726A1 (en)
WO (1) WO1982001278A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3615645A1 (en) * 1986-05-09 1987-11-12 Kunststoffwerk Katzbach M Grub DEVICE FOR PROTECTING PARABOLANTENNAS
AU612363B2 (en) * 1987-05-12 1991-07-11 Sippican Ocean Systems Inc. Radome for enclosing a microwave antenna
GB2291948B (en) * 1988-02-03 1996-06-26 Vickers Shipbuilding & Eng Improvements in or relating to structures subject to loading
DE69010679D1 (en) * 1990-08-03 1994-08-18 Miki Spa Radome with large dimensions.
DE4440959C2 (en) * 1994-11-17 1997-07-31 Kurt Degro Safe house against burglary, fire, storm, earthquake, flood and mudslide
DE102011083951A1 (en) 2011-10-04 2013-04-04 Rohde & Schwarz Gmbh & Co. Kg Force introduction ring for foamed radome

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273023B (en) * 1965-10-09 1968-07-18 Gruenzweig & Hartmann Process for the production of a self-supporting tower-like housing made of rigid foam for the protection of radio equipment
EP0031039A1 (en) * 1979-12-21 1981-07-01 G + H MONTAGE GmbH Tower shaped shielding for radio-engineering systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092800B (en) * 1957-08-01 1960-11-10 Gerd Rose Dipl Ing Process for the manufacture of a plastic boat hull
DE2323501A1 (en) * 1973-05-10 1974-11-21 Lahmann Fritz Reinforcement for foamed plastics parts - for introduction of forces, has metal part embedded in foam plastics
DE2616294C3 (en) * 1976-04-13 1981-10-29 Großkopf, Peter Volker, Dipl.-Ing., 4300 Essen Method of manufacturing a self-supporting multilayer panel or shell
US4158938A (en) * 1977-10-05 1979-06-26 Owens-Corning Fiberglas Corporation Foamed plastic panel connecting means and wall structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273023B (en) * 1965-10-09 1968-07-18 Gruenzweig & Hartmann Process for the production of a self-supporting tower-like housing made of rigid foam for the protection of radio equipment
EP0031039A1 (en) * 1979-12-21 1981-07-01 G + H MONTAGE GmbH Tower shaped shielding for radio-engineering systems

Also Published As

Publication number Publication date
WO1982001278A1 (en) 1982-04-15
DE3175823D1 (en) 1987-02-12
EP0049523A1 (en) 1982-04-14
DE3037726A1 (en) 1982-05-19
ATE24795T1 (en) 1987-01-15

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