EP0235561B1 - Microwave antenna support with parabolic reflector adjustable in elevation - Google Patents

Microwave antenna support with parabolic reflector adjustable in elevation Download PDF

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Publication number
EP0235561B1
EP0235561B1 EP87101080A EP87101080A EP0235561B1 EP 0235561 B1 EP0235561 B1 EP 0235561B1 EP 87101080 A EP87101080 A EP 87101080A EP 87101080 A EP87101080 A EP 87101080A EP 0235561 B1 EP0235561 B1 EP 0235561B1
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EP
European Patent Office
Prior art keywords
bolt
accordance
pivot element
legs
antenna
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 - Lifetime
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EP87101080A
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German (de)
French (fr)
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EP0235561A1 (en
Inventor
Günter Dobler
Birgit Nelhübel
Hermann Rothlübbers
Hans Reimold
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Hirschmann Electronics GmbH and Co KG
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Hirschmann Electronics GmbH and Co KG
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Priority to AT87101080T priority Critical patent/ATE66317T1/en
Publication of EP0235561A1 publication Critical patent/EP0235561A1/en
Application granted granted Critical
Publication of EP0235561B1 publication Critical patent/EP0235561B1/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
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning

Definitions

  • the invention relates to a device for fastening a microwave antenna with a surface reflector on a standpipe, with a holding part attached to the rear of the surface reflector, which is opposite to a U-shaped swivel part which can be fastened to the standpipe by means of an adjustable screwing device for adjusting the angle of the antenna by one Axis of rotation is pivotable, which extends horizontally through the mutually parallel interlocking legs of the holding part and the pivoting part perpendicular to the main beam direction of the antenna.
  • Such a device as can be used in particular for holding smaller parabolic antennas for satellite radio reception, is already known from DE-OS 31 27 855.
  • the swivel device is complicated due to the many individual parts (screw connections, mounting brackets for the screw spindles) on the one hand in terms of material requirements and manufacture and on the other hand, in particular with regard to the setting of the elevation angle, complicated to use.
  • an additional manufacturing effort is required because the holder must be attached to the reflector.
  • the holding part can be separated from the pivoting part in this known device; however, loose parts result in the packaging and the assembly effort of the holding device is further increased.
  • the device known from DE-OS 19 56 172 of the above Art is because of the high manufacturing costs due to the many screw connections, the required fastening device for connection to the reflector, and the complicated structure of the pivot device with rotatably mounted cross bolt and pinned screw relatively expensive.
  • this version has a large packaging depth because the side parts of the swivel part must be as wide as possible so that a sufficiently large adjustment range of the elevation angle can be reached.
  • the invention has for its object to provide a device of the type mentioned, which is simple and inexpensive to build, has a small packaging size without losing parts and allows quick and permanently safe assembly and adjustability of the elevation angle.
  • the holding part consists of two ribs parallel to one another and to the main beam direction, integral with the surface reflector, as the axis of rotation only a continuous bolt is provided, onto which the swivel part can be locked and that a rib at a distance from Axis of rotation a threaded pin is articulated, on which a nut can be rotated to adjust the elevation angle of the antenna, said nut engaging with an annular bead in a slot of the pivoting part.
  • the device according to the invention can already be produced simply and inexpensively due to the one-piece construction of the holding part and surface reflector and the part-saving, uncomplicated construction of the swivel device. Due to the pivoting part which can be plugged and locked onto the bolt representing the axis of rotation, the assembly is also extremely simple and quick to carry out. In addition, due to the separation of the swivel part with mast fastening clamp from the holding part integral with the surface reflector, the antenna has a small packaging size and no loose parts that can be lost.
  • the setting of the elevation angle is advantageous with very little effort, namely only by means of a threaded rod with a nut designed expediently as a manually operable handle knob, without lock nuts, rotatable cross bolts or the like. enables, while still a quick, yet precise and safe angle adjustability is guaranteed.
  • the bolt forming the axis of rotation can also be used as a handle, with which the antenna can be transported very easily by hand, particularly in the case of larger reflector dimensions.
  • an expedient embodiment of the swivel part and bolt is specified, which enables simple assembly without loosening parts (eg screw connections).
  • the swivel part in the case of an embodiment according to claim 2 with the legs between the ribs and clamps
  • the swivel part only needs to be plugged onto the bolt with the key-shaped recesses, which after release by the force of the compression spring slides back into the starting position in which the swivel part is rotatably attached to the bolt.
  • the one in which the bolt is axially displaced under spring force is generally more favorable.
  • an annular groove if possible With. conical end faces
  • an equivalent constriction may be provided.
  • the swivel part can be plugged on particularly easily and quickly if the keyhole-shaped recesses have an enlarged section on the open end part which serves as an insertion aid.
  • An embodiment according to claim 6 ensures in a simple manner that the key surfaces are always in the desired angular position.
  • a simple version e.g. a square head and a nose resting thereon may be provided.
  • a design according to claim 7 is cheaper, in which the hook lies in the groove in the operating state and thereby ensures the protection against rotation, while in the assembled state it rests on one of the groove walls (the amount of the desired axial displacement of the Bolzens corresponds) and thereby frees the fitter both hands for further assembly work.
  • the embodiment of the device according to the invention described in claim 10 advantageously results in a flawless guidance when adjusting the elevation in a large angular range and a support of the pivoting part on the ribs of the reflector and, by increasing the stability of the device, also results in flawless adjustability even with large antenna weights and / or wind loads and - together with the measures according to claim 2 - permanent exact compliance with the set elevation angle within very narrow limits.
  • an effective securing of the screw connection is achieved in a simple and extremely cost-effective manner without additional, possibly lost, parts.
  • the attachment of a scale according to claim 15 is particularly expedient for the rapid adjustment of the desired antenna inclination.
  • FIGS. 2 to 4 show an embodiment of the device according to the invention in a satellite receiving antenna with a parabolic mirror, e.g. for the reception of DBS satellite programs, whereby the parabolic reflector is only partially shown due to its size.
  • 1 shows a partially sectioned view of the rear of the antenna mounted on the standpipe and
  • FIGS. 2 to 4 partially sectioned views according to the section lines shown in FIG.
  • the device consists of a U-shaped swivel part 1, two mutually parallel, integral with the parabolic reflector 2 and projecting from the rear wall in the direction of the reflector axis A (identical to the main beam direction) ribs 3, one of the ribs 3 and the legs 4, 5 of the Passing swivel part 1, forming a horizontal axis of rotation D running perpendicular to the reflector axis A, forming cylindrical bolt 6, a device 7 for adjusting the elevation angle of the microwave antenna and a mast screw 8 for fastening the swivel part 1 to a standpipe 9.
  • the mast screw connection 8 consists of a U-shaped bracket 10 which, with its free arms designed as threaded bolts, passes through the base part 11 of the pivoting part 1 and comprises the standpipe 9, and a counter clamp 12, which is pressed onto the standpipe 9 with wing nuts 13 when the device is mounted becomes.
  • the base part 11 of the swivel part 1 has a V-shaped recess 14 at the upper and lower ends, on the side walls of which the standpipe 9 rests, and in the central region a wide trough-shaped recess 15, at the bottom of which the base part of the bracket 10 rests for its stabilization .
  • the bracket 10 is held on the leg part 1 by a partially encompassing tab 16 that is pressed out of the base part 11 of the pivoting part 1 and bent accordingly.
  • the counter clamp 12 lies with two edges 17 of a rectangular recess 18 on the standpipe 9. In this way, twisting from the desired position in the azimuthal direction, in particular when the wing nuts 13 are often unavoidable in practice, is effectively avoided.
  • the swivel part 1 with the mast screw 8 is separated from the rest of the device, so that the antenna has a minimal packaging size.
  • the bolt 6 passes through central bores of the ribs 3, not visible in the figures, and one clamp clamp 19 each arranged on the inside of the ribs, each of which can be pressed against the ribs 3 by means of two screws 20 and wing nuts 21.
  • the screws 20 have hexagon heads 22, on the one surface of which a nose 23 pressed out of the clamps 19 bears against rotation, so that the screw connections can be handled without tools.
  • One end section of the bolt 6 carries a compression spring 24 which surrounds it closely and which is supported on the one hand on the outer surface of the rib 3 and on the other hand with an end turn of smaller diameter on the outer end face of an annular groove 25 of the bolt 6.
  • a compression spring 24 which surrounds it closely and which is supported on the one hand on the outer surface of the rib 3 and on the other hand with an end turn of smaller diameter on the outer end face of an annular groove 25 of the bolt 6.
  • an equivalent locking ring or a similar device could be provided instead of the groove 25.
  • the other end section of the bolt 6 is designed as a hook 26 angled by 90 ° to the axis D with an approximately rectangular cross section, which is secured against rotation in a through on the outer wall of a Rib 3 formed side walls 27 formed groove 28 is.
  • the legs 4, 5 of the swivel part 1 each have a keyhole-shaped, open at the beard end recess 29, the circular inner part 30 has a slightly larger diameter than the bolt 6, while the width of the inner beard-shaped section 31 is significantly smaller than the bolt diameter and the outer section 32 is significantly wider as an insertion opening.
  • a slot 33 is provided, in which an annular bead 34 engages in the operating state of the antenna, which is part of a handwheel 35 which can be screwed onto a threaded spindle 36, which at the other end has a tab 37 on one of the screws 20 is articulated.
  • the bolt 6 Approximately at the level of the passage through the ribs 3, the bolt 6 has two identical incisions with mutually opposite, parallel ones Key surfaces 38 and end surfaces 39 which extend obliquely to the axis D and laterally delimit the key surfaces 38.
  • the width across flats is slightly smaller than the width of section 31 of recesses 29.
  • the swivel part 1 is automatically locked in such a way that, when plugging in, the shoulders 41 of the recesses 29 first slide along the inclined end faces 39 of the incisions of the bolt 6 and move it against the force of the spring 24 to such an extent that the narrow section 31 of the recesses 29 can slide past the key faces 38 until the inner circular part 30 comprises the bolt 6, which then moves axially outwards by the spring force to such an extent that the pivot part 1 can be rotated about the axis D and is firmly connected to the ribs 3 in the radial direction .
  • the linear (and not punctiform) abutment of the shoulders 41 on the inclined end faces 39 ensures that the sliding operation is always safe.
  • the lateral end faces 42, 43 of the legs 4, 5 of the pivoting part 1 are circular towards the axis of rotation D towards the free end and are adapted to corresponding circular end faces 44, 45 each of a raised portion 46 provided on the inside of the ribs 3. In this way, safe guidance and support is achieved even with strong mechanical loads on the swivel joint by wind pressure or heavy parabolic mirrors, so that clean adjustability and a permanent setting value are ensured.

Abstract

The device is based on a standpipe holder for microwave antennas with flat reflectors, which has a retaining part fitted to the rear side of the reflector (2), which retaining part can be swivelled with respect to a swivelling part (1) attached to the standpipe (9), by means of an adjustable screw device (34,35,36), for adjusting the elevation angle of the antenna about an axis of rotation (D), which passes horizontally through the mutually parallel swivels (4,5) of the retaining part and of the swivelling part, perpendicular to the main direction of radiation. In order to facilitate simple and cost-effective construction for such a holder and hence a small packaging size, without any parts that can be lost, together with rapid, safe installation and the ability to adjust the elevation angle, it is provided that the retaining part consist of two ribs (3), which form one piece with the flat reflector and are parallel to each other and to the main direction of radiation, that only one continuous bolt (6) be provided as the axis of rotation, on which the swivelling part can be placed such that it can be locked, and that a threaded pin (36) is pivoted on a rib, at a distance from the axis of rotation and such that it can be fixed, and a nut (35) can be rotated on the threaded pin (36) for adjusting the elevation angle of the antenna, which nut (35) engages with a torus (34) in a slot in the swivelling part. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur Befestigung einer Mikrowellenantenne mit Flächenreflektor an einem Standrohr, mit einem an der Rückseite des Flächenreflektors angebrachten Halteteil, das gegen-über einem am Standrohr befestigbaren U-förmigen Schwenkteil mittels einer verstellbaren Verschraubungseinrichtung zur Einstellung des Ele vationswinkels der Antenne um eine Drehachse verschwenkbar ist, welche die zueinander parallelen ineinandergreifenden Schenkel des Halteteils und des Schwenkteils senkrecht zur Hauptstrahlrichtung der Antenne horizontal durchsetzt.
Eine derartige Vorrichtung, wie sie insbesondere zur Halterung kleinerer Parabolantennen für den Satelliten-Rundfunkempfang sinnvoll einsetzbar ist, ist bereits aus der DE-OS 31 27 855 bekannt. Bei dieser Halterung ist die Schwenkeinrichtung auf Grund der vielen Einzelteile (Schraubverbindungen, Befestigungswinkel für die Schraubspindeln) einerseits aufwendig bezüglich Materialbedarf und Herstellung und zum anderen, insbesondere hinsichtlich der Einstellung des Elevationswinkels, kompliziert in der Anwendung. Darüber hinaus ist ein zusätzlicher Fertigungsaufwand dadurch erforderlich, daß die Halterung am Reflektor befestigt werden muß. Zur Minimierung der Verpackungsgröße kann zwar bei dieser bekannten Vorrichtung des Halteteil vom Schwenkteil getrennt sein; dabei ergeben sich jedoch verlierbare lose Teile in der Verpackung und der Montageaufwand der Haltevorrichtung ist weiter erhöht.The invention relates to a device for fastening a microwave antenna with a surface reflector on a standpipe, with a holding part attached to the rear of the surface reflector, which is opposite to a U-shaped swivel part which can be fastened to the standpipe by means of an adjustable screwing device for adjusting the angle of the antenna by one Axis of rotation is pivotable, which extends horizontally through the mutually parallel interlocking legs of the holding part and the pivoting part perpendicular to the main beam direction of the antenna.
Such a device, as can be used in particular for holding smaller parabolic antennas for satellite radio reception, is already known from DE-OS 31 27 855. With this holder, the swivel device is complicated due to the many individual parts (screw connections, mounting brackets for the screw spindles) on the one hand in terms of material requirements and manufacture and on the other hand, in particular with regard to the setting of the elevation angle, complicated to use. In addition, an additional manufacturing effort is required because the holder must be attached to the reflector. To minimize the packaging size, the holding part can be separated from the pivoting part in this known device; however, loose parts result in the packaging and the assembly effort of the holding device is further increased.

Auch die aus der DE-OS 19 56 172 bekannte Vorrichtung der obengenannten Art ist wegen des hohen Herstellungsaufwandes durch die vielen Schraubverbindungen, die benötigte Befestigungseinrichtung zur Verbindung mit dem Reflektor, sowie des komplizierten Aufbaus der Schwenk einrichrung mit drehbar gelagertem Querbolzen und verstifteter Schraube verhältnismäßig teuer. Außerdem weist diese Ausführung eine große Verpackungstiefe auf, weil die Seitenteile des Schwenkteils möglichst breit sein müssen, damit ein ausreichend großer Verstellbereich des Elevationswinkels erreichbar ist.The device known from DE-OS 19 56 172 of the above Art is because of the high manufacturing costs due to the many screw connections, the required fastening device for connection to the reflector, and the complicated structure of the pivot device with rotatably mounted cross bolt and pinned screw relatively expensive. In addition, this version has a large packaging depth because the side parts of the swivel part must be as wide as possible so that a sufficiently large adjustment range of the elevation angle can be reached.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die einfach und kostengünstig aufgebaut ist, eine geringe Verpackungsgröße ohne verlierbare Teile aufweist und eine schnelle sowie dauerhaft sichere Montage und Einstellbarkeit des Elevationswinkels ermöglicht.The invention has for its object to provide a device of the type mentioned, which is simple and inexpensive to build, has a small packaging size without losing parts and allows quick and permanently safe assembly and adjustability of the elevation angle.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß das Halteteil aus zwei zueinander und zur Hauptstrahlrichtung parallelen, mit dem Flächenreflektor einstückigen Rippen besteht, als Drehachse nur ein durchgehender Bolzen vorgesehen ist, auf den das Schwenkteil verriegelbar aufsteckbar ist, und daß an einer Rippe mit Abstand zur Drehachse ein Gewindestift feststellbar angelenkt ist, auf dem zur Einstellung des Elevationswinkels der Antenne eine Mutter verdrehbar ist, die mit einem Ringwulst in einen Schlitz des Schwenkteils eingreift.This object is achieved in that the holding part consists of two ribs parallel to one another and to the main beam direction, integral with the surface reflector, as the axis of rotation only a continuous bolt is provided, onto which the swivel part can be locked and that a rib at a distance from Axis of rotation a threaded pin is articulated, on which a nut can be rotated to adjust the elevation angle of the antenna, said nut engaging with an annular bead in a slot of the pivoting part.

Die erfindungsgemäße Vorrichtung ist durch die Einstückigkeit von Halteteil und Flächenreflektor sowie den teilesparenden unkomplizierten Aufbau der Schwenkeinrichtung bereits einfach und kostengünstig herstellbar. Durch das auf den die Drehachse darstellenden Bolzen aufsteck- und verriegelbar ausgebildete Schwenkteil ist darüber hinaus auch die Montage denkbar einfach und schnell ausführbar. Außerdem weist die Antenne durch die Trennung des Schwenkteils mit Mastbefestigungsschelle von dem mit dem Flächenreflektor einstückigen Halteteil eine geringe Verpackungsgröße und keinerlei verlierbare lose Teile auf.
Weiterhin ist in vorteilhafter Weise die Einstellung des Elevationswinkels mit äußerst geringem Aufwand, nämlich lediglich mittels einer Gewindestange mit einer zweckmäßigerweise als von Hand betätigbarer Griffknopf ausgebildeten Mutter, ohne Kontermuttern, drehbare Querbolzen o.ä. ermöglicht, wobei trotzdem spielfrei eine schnelle und doch präzise und sichere Winkeleinstellbarkeit gewährleistet ist. Schließlich ist der die Drehachse bildende Bolzen zugleich als Handgriff verwendbar, womit die Antenne, insbesondere bei größeren Reflektorabmessungen, sehr einfach von Hand transportiert werden kann.The device according to the invention can already be produced simply and inexpensively due to the one-piece construction of the holding part and surface reflector and the part-saving, uncomplicated construction of the swivel device. Due to the pivoting part which can be plugged and locked onto the bolt representing the axis of rotation, the assembly is also extremely simple and quick to carry out. In addition, due to the separation of the swivel part with mast fastening clamp from the holding part integral with the surface reflector, the antenna has a small packaging size and no loose parts that can be lost.
Furthermore, the setting of the elevation angle is advantageous with very little effort, namely only by means of a threaded rod with a nut designed expediently as a manually operable handle knob, without lock nuts, rotatable cross bolts or the like. enables, while still a quick, yet precise and safe angle adjustability is guaranteed. Finally, the bolt forming the axis of rotation can also be used as a handle, with which the antenna can be transported very easily by hand, particularly in the case of larger reflector dimensions.

Vorteilhafte Ausführungen bzw. Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous embodiments of the invention can be found in the subclaims.

Bei einer Ausbildung nach Anspruch 2 ist mit einfachen Mitteln eine hohe Flächenpressung zwischen Schwenkteil und Halteteil (Rippen) und damit eine von Umwelteinflüssen unabhängige, dauerhaft sichere Fixierung der eingestellten Antennenposition in der Vertikalebene erzielt.In an embodiment according to claim 2, a high surface pressure between the swivel part and the holding part (ribs) and thus a permanently secure fixation of the set antenna position in the vertical plane, which is independent of environmental influences, is achieved with simple means.

Durch die Doppelnutzung einer der vier Schraubverbindungen gemäß Anspruch 3 kann in kostensparender Weise auf eigene Befestigungsmittel für die Gewindestange verzichtet werden.Due to the double use of one of the four screw connections according to claim 3, own fastening means for the threaded rod can be dispensed with in a cost-saving manner.

In Anspruch 4 ist eine zweckmäßige Ausgestaltung von Schwenkteil und Bolzen angegeben, die eine einfache Montage ohne ein Lösen von Teilen (z.B. Schraubverbindungen) ermöglicht. Nachdem der Bolzen von Hand gegen Federdruck in die Montagestellung gebracht ist, braucht das Schwenkteil (bei einer Ausführung nach Anspruch 2 mit den Schenkeln zwischen den Rippen und Klemmschellen) nur noch mit den schlüsselförmigen Ausnehmungen auf den Bolzen aufgesteckt zu werden, der nach dem Loslassen durch die Kraft der Druckfeder in die Ausgangslage zurückgleitet, in der das Schwenkteil drehbar auf dem Bolzen befestigt ist. Im Hinblick auf eine einfache Anordnung der Feder ist von den beiden in Anspruch 4 angegebenen Alternativen in der Regel diejenige günstiger, bei der der Bolzen unter Federkraft axial verschoben wird. Für diesen Fall kann anstatt der Schlüsselflächen auch eine Ringnut (möglichst mit. konischen Stirnflächen) oder eine gleichwirkende andere Einschnürung vorgesehen sein.In claim 4, an expedient embodiment of the swivel part and bolt is specified, which enables simple assembly without loosening parts (eg screw connections). After the bolt has been brought into the assembly position by hand against spring pressure, the swivel part (in the case of an embodiment according to claim 2 with the legs between the ribs and clamps) only needs to be plugged onto the bolt with the key-shaped recesses, which after release by the force of the compression spring slides back into the starting position in which the swivel part is rotatably attached to the bolt. In view of a simple arrangement of the spring, of the two alternatives specified in claim 4, the one in which the bolt is axially displaced under spring force is generally more favorable. In this case, an annular groove (if possible With. conical end faces) or an equivalent constriction may be provided.

Besonders einfach und schnell kann das Aufstecken des Schwenkteils erfolgen, wenn die schlüssellochförmigen Ausnehmungen gemäß Anspruch 5 am offenen Endteil einen erweiterten Abschnitt aufweisen der als Einführhilfe dient.The swivel part can be plugged on particularly easily and quickly if the keyhole-shaped recesses have an enlarged section on the open end part which serves as an insertion aid.

Durch eine Ausgestaltung nach Anspruch 6 ist auf einfache Weise sichergestellt, daß die Schlüsselflächen stets in der Soll-Winkellage stehen. Bei einer Einfachausführung kann dazu z.B. ein Vierkantkopf und eine daran anliegende Nase vorgesehen sein. Für die praktische Handhabbarkeit ist jedoch eine Ausbildung nach Anspruch 7 günstiger, bei der der Haken im Betriebszustand in der Nut liegt und dabei den Verdrehschutz gewährleistet, während er im Montagezustand um etwa 90° gedreht auf einer der Nutwände aufliegt (deren Höhe der gewünschten Axialverschiebung des Bolzens entspricht) und dadurch dem Monteur beide Hände für die weiteren Montagearbeiten freigibt.An embodiment according to claim 6 ensures in a simple manner that the key surfaces are always in the desired angular position. With a simple version, e.g. a square head and a nose resting thereon may be provided. For practical handling, however, a design according to claim 7 is cheaper, in which the hook lies in the groove in the operating state and thereby ensures the protection against rotation, while in the assembled state it rests on one of the groove walls (the amount of the desired axial displacement of the Bolzens corresponds) and thereby frees the fitter both hands for further assembly work.

Besonders einfach ist das Aufstecken (bzw. Abziehen) des Schwenkteils auf den (bzw. von dem) Bolzen bei einer Ausbildung der Schlüsselflächen gemäß Anspruch 8, weil der Bolzen hierbei durch den Druck der entsprechenden Randteile der schlüsselförmigen Ausnehmungen der Schenkel des Schwenkteils auf die schrägen seitlichen Stirnflächen der Schlüsselflächen (oder in äquivalenter Weilse einer Ringnut) anstatt von Hand automatisch verschoben wird und beim selbsttätigen Zurückgleiten eine Zwangsverriegelung bewirkt. Dabei liegt zweckmäßigerweise der Haken stets in der Nut, so daß der Bolzen gegen Verdrehung gesichert ist und die Schlüsselflächen immer die richtige Lage aufweisen.It is particularly easy to attach (or remove) the swivel part to (or from the) bolt when the key surfaces are designed according to claim 8, because the bolt is thereby pressed onto the oblique parts by the pressure of the corresponding edge parts of the key-shaped recesses of the legs of the swivel part lateral end faces of the key faces (or in an equivalent part of an annular groove) is automatically moved instead of by hand and causes a forced locking when sliding back automatically. The hook is conveniently always in the groove, so that the bolt is secured against rotation and the key surfaces are always in the correct position.

Eine Alternative zu dieser Ausführung, die in Einzelfällen sinnvoll sein kann, ist in Anspruch 9 angegeben.An alternative to this embodiment, which can be useful in individual cases, is given in claim 9.

Die in Anspruch 10 beschriebene Ausbildung der erfindungsgemäßen Vorrichtung ergibt in vorteilhafter Weise eine einwandfreie Führung bei der Einstellung der Elevation in einem großen Winkelbereich und eine Abstützung des Schwenkteils an den Rippen des Reflektors und bewirkt durch diese Erhöhung der Stabilität der Vorrichtung auch bei großen Antennengewichten und/oder Windbelastungen eine einwandfreie Einstellbarkeit und - zusammen mit den Maßnahmen nach Anspruch 2 - eine dauerhaft exakte Einhaltung des eingestellten Elevationswinkels in sehr engen Grenzen.The embodiment of the device according to the invention described in claim 10 advantageously results in a flawless guidance when adjusting the elevation in a large angular range and a support of the pivoting part on the ribs of the reflector and, by increasing the stability of the device, also results in flawless adjustability even with large antenna weights and / or wind loads and - together with the measures according to claim 2 - permanent exact compliance with the set elevation angle within very narrow limits.

Bei einer Ausgestaltung der Vorrichtung nach Anspruch 11 ist auf einfache und äußerst kostengünstige Weise eine wirksame Schraubverbindungssicherung ohne zusätzliche, gegebenenfalls verlierbare Teile erreicht.In an embodiment of the device according to claim 11, an effective securing of the screw connection is achieved in a simple and extremely cost-effective manner without additional, possibly lost, parts.

Bei bekannten Mastbefestigungen mit U-Bügel und Gegenschelle weist deren dem Standrohr zugewandte Fläche entweder gar keine oder eine ganze Reihe von Zacken auf. Versuche haben ergeben, daß bei beiden Ausführungen ein einseitiges Anziehen der Flügelmuttern, wie es in der Praxis regelmäßig der Fall ist, zu nicht vertretbaren Verdrehungen der Antenne aus der Soll-Azimutlage führt. Durch die einfache Maßnahme nach Anspruch 12 ist dies sicher vermieden.
Eine gemäß Anspruch 13 vorgesehene Haltelasche verhindert, daß der U-förmige Bügel in Richtung zum Flächenreflektor verrutschen kann und dadurch die Montage behindert.
Eine wesentliche Vergrößerung der Stabilität der eigentlichen Mastbefestigung ist nach Anspruch 14 dadurch erreicht, daß das Basisteil des Bügels auf seiner ganzen Länge an einer entsprechenden wannenförmigen Vertiefung des Schwenkteils anliegt.In known mast attachments with a U-bracket and counter clamp, the surface facing the standpipe has either no or a whole series of spikes. Experiments have shown that in both versions, one-sided tightening of the wing nuts, as is regularly the case in practice, leads to unacceptable rotations of the antenna from the target azimuth position. This is reliably avoided by the simple measure according to claim 12.
A holding tab provided according to claim 13 prevents the U-shaped bracket from slipping in the direction of the surface reflector and thereby hampers the assembly.
A significant increase in the stability of the actual mast attachment is achieved according to claim 14 in that the base part of the bracket rests over its entire length on a corresponding trough-shaped recess of the pivoting part.

Im Hinblick auf die dauerhaft hohe Präzision der Elevationswinkeleinstellung auch nach mehreren Einstellvorgängen ist das Anbringen einer Skala gemäß Anspruch 15 zur schnellen Einstellung der gewünschten Antennenneigung besonders zweckmäßig.In view of the permanently high precision of the elevation angle adjustment even after several adjustment processes, the attachment of a scale according to claim 15 is particularly expedient for the rapid adjustment of the desired antenna inclination.

Die Figuren zeigen ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung bei einer Satelliten-Empfangsantenne mit Parabolspiegel, z.B. für den Empfang von DBS-Satellitenprogrammen, wobei der Parabolreflektor wegen seiner Größe nur teilweise dargestellt ist. Dabei zeigen die Figur 1 eine teilweise geschnittene Ansicht der Rückseite der am Standrohr montierten Antenne und die Figuren 2 bis 4 teilweise geschnittene Ansichten gemäß den in Figur 1 angegebenen Schnittlinien.The figures show an embodiment of the device according to the invention in a satellite receiving antenna with a parabolic mirror, e.g. for the reception of DBS satellite programs, whereby the parabolic reflector is only partially shown due to its size. 1 shows a partially sectioned view of the rear of the antenna mounted on the standpipe and FIGS. 2 to 4 partially sectioned views according to the section lines shown in FIG.

Die Vorrichtung besteht aus einem U-förmigen Schwenkteil 1, zwei zueinander parallelen, mit dem Parabolreflektor 2 einstückigen und von dessen Rückwand in Richtung der Reflektorachse A (identisch mit der Hauptstrahlrichtung) abragenden Rippen 3, einen die Rippen 3 und die Schenkel 4, 5 des Schwenkteils 1 durchsetzenden, eine senkrecht zur Reflektorachse A verlaufende horizontale Drehachse D bildenden zylindrischen Bolzen 6, einer Einrichtung 7 zum Verstellen des Elevationswinkels der Mikrowellenantenne und einer Mastverschraubung 8 zur Befestigung des Schwenkteils 1 an einem Standrohr 9.
Die Mastverschraubung 8 besteht aus einem U-förmigen Bügel 10, der mit seinen als Gewindebolzen ausgebildeten freien Armen das Basisteil 11 des Schwenkteils 1 durchsetzt und das Standrohr 9 umfaßt, sowie einer Gegenschelle 12, die bei montierter Vorrichtung mit Flügelmuttern 13 an das Standrohr 9 gepreßt wird. Das Basisteil 11 des Schwenkteils 1 weist am oberen und unteren Ende je eine V-förmige Vertiefung 14 auf, an deren Seitenwänden das Standrohr 9 anliegt, sowie im Mittelbereich eine breite wannenförmige Vertiefung 15, an deren Boden das Basisteil des Bügels 10 zu seiner Stabilisierung anliegt. Der Bügel 10 ist zur Erleichterung der Montage durch eine ihn teilweise umfassende, aus dem Basisteil 11 des Schwenkteils 1 herausgedrückte und entsprechend gebogene Lasche 16 am Schenkteil 1 gehalten. Die Gegenschelle 12 liegt mit zwei Kanten 17 einer rechteckigen Ausnehmung 18 am Standrohr 9 an. Auf diese Weise ist eine Verdrehung aus der Sollage in azimutaler Richtung, insbesondere bei einem in der Praxis oft unvermeidlichen einseitigen Anziehen der Flügelmuttern 13, wirksam vermieden.The device consists of a U-shaped swivel part 1, two mutually parallel, integral with the parabolic reflector 2 and projecting from the rear wall in the direction of the reflector axis A (identical to the main beam direction) ribs 3, one of the ribs 3 and the legs 4, 5 of the Passing swivel part 1, forming a horizontal axis of rotation D running perpendicular to the reflector axis A, forming cylindrical bolt 6, a device 7 for adjusting the elevation angle of the microwave antenna and a mast screw 8 for fastening the swivel part 1 to a standpipe 9.
The mast screw connection 8 consists of a U-shaped bracket 10 which, with its free arms designed as threaded bolts, passes through the base part 11 of the pivoting part 1 and comprises the standpipe 9, and a counter clamp 12, which is pressed onto the standpipe 9 with wing nuts 13 when the device is mounted becomes. The base part 11 of the swivel part 1 has a V-shaped recess 14 at the upper and lower ends, on the side walls of which the standpipe 9 rests, and in the central region a wide trough-shaped recess 15, at the bottom of which the base part of the bracket 10 rests for its stabilization . To make assembly easier, the bracket 10 is held on the leg part 1 by a partially encompassing tab 16 that is pressed out of the base part 11 of the pivoting part 1 and bent accordingly. The counter clamp 12 lies with two edges 17 of a rectangular recess 18 on the standpipe 9. In this way, twisting from the desired position in the azimuthal direction, in particular when the wing nuts 13 are often unavoidable in practice, is effectively avoided.

Im Lieferzustand ist das Schwenkteil 1 mit der Mastverschraubung 8 von der restlichen Vorrichtung getrennt, so daß die Antenne eine minimale Verpackungsgröße aufweist. Dabei durchsetzt der Bolzen 6 zentrale, in den Figuren nicht sichtbare Bohrungen der Rippen 3 und je einer an der Rippeninnenseite angeordneten Klemmschelle 19, die jeweils mittels zweier Schrauben 20 und Flügelmuttern 21 gegen die Rippen 3 preßbar sind. Die Schrauben 20 weisen Sechskantköpfe 22 auf, an deren einer Fläche jeweils eine aus den Klemmschellen 19 herausgedrückte Nase 23 als Verdrehschutz anliegt, so daß die Schraubverbindungen ohne Werkzeug handhabber sind.In the delivery state, the swivel part 1 with the mast screw 8 is separated from the rest of the device, so that the antenna has a minimal packaging size. The bolt 6 passes through central bores of the ribs 3, not visible in the figures, and one clamp clamp 19 each arranged on the inside of the ribs, each of which can be pressed against the ribs 3 by means of two screws 20 and wing nuts 21. The screws 20 have hexagon heads 22, on the one surface of which a nose 23 pressed out of the clamps 19 bears against rotation, so that the screw connections can be handled without tools.

Der eine Endabschnitt des Bolzen 6 trägt eine ihn eng umfassende Druckfeder 24, die sich einerseits an der Außenfläche der Rippe 3 und zum anderen mit einer Endwindung geringeren Durchmessers an der äußeren Stirnfläche einer Ringnut 25 des Bolzen 6 abstützt. (Selbstverständlich könnte anstatt der Nut 25 ein gleichwirkender Sicherungsring oder eine ähnliche Einrichtung vorgesehen sein. Der andere Endabschnitt des Bolzen 6 ist als ein um 90° zur Achse D abgewinkelter Haken 26 mit etwa rechteckigem Querschnitt ausgebildet, der verdrehsicher in einer durch an der Außenwand einer Rippe 3 angeformte Seitenwände 27 gebildeten Nut 28 liegt.
Die Schenkel 4, 5 des Schwenkteils 1 weisen jeweils eine schlüssellochförmige, am bartseitigen Ende offene Ausnehmung 29 auf, deren kreisförmiger innere Teil 30 einen geringfügig größeren Durchmesser hat als der Bolzen 6, während die Breite des inneren bartförmigen Abschnittes 31 deutlich kleiner ist als der Bolzendurchmesser und der äußere Abschnitt 32 als Einführungsöffnung deutlich breiter.
Im Schenkel 5 des Schwenkteils 1 ist ein Schlitz 33 vorgesehen, in den im Betriebszustand der Antenne ein Ringwulst 34 eingreift, der Teil eines Handrades 35 ist, welches auf eine Gewindespindel 36 aufschraubbar ist, die am anderen Ende mit einer Lasche 37 an einer der Schrauben 20 angelenkt ist.
Etwa auf Höhe der Durchführung durch die Rippen 3 weist der Bolzen 6 zwei gleiche Einschnitte mit einander gegenüberliegenden parallelen Schlüsselflächen 38 und schräg zur Achse D verlaufenden, die Schlüsselflächen 38 seitlich begrenzenden Stirnflächen 39 auf. Die Schlüsselweite ist geringfügig kleiner als die Breite des Abschnittes 31 der Ausnehmungen 29.One end section of the bolt 6 carries a compression spring 24 which surrounds it closely and which is supported on the one hand on the outer surface of the rib 3 and on the other hand with an end turn of smaller diameter on the outer end face of an annular groove 25 of the bolt 6. (Of course, an equivalent locking ring or a similar device could be provided instead of the groove 25. The other end section of the bolt 6 is designed as a hook 26 angled by 90 ° to the axis D with an approximately rectangular cross section, which is secured against rotation in a through on the outer wall of a Rib 3 formed side walls 27 formed groove 28 is.
The legs 4, 5 of the swivel part 1 each have a keyhole-shaped, open at the beard end recess 29, the circular inner part 30 has a slightly larger diameter than the bolt 6, while the width of the inner beard-shaped section 31 is significantly smaller than the bolt diameter and the outer section 32 is significantly wider as an insertion opening.
In the leg 5 of the swivel part 1, a slot 33 is provided, in which an annular bead 34 engages in the operating state of the antenna, which is part of a handwheel 35 which can be screwed onto a threaded spindle 36, which at the other end has a tab 37 on one of the screws 20 is articulated.
Approximately at the level of the passage through the ribs 3, the bolt 6 has two identical incisions with mutually opposite, parallel ones Key surfaces 38 and end surfaces 39 which extend obliquely to the axis D and laterally delimit the key surfaces 38. The width across flats is slightly smaller than the width of section 31 of recesses 29.

Im Lieferzustand sind sämtliche Flügelmuttern 13, 21 sowie das Handrand 35 lose auf die zugehörigen Schrauben bzw. Gewindespindeln 10, 20, 36 aufgeschraubt, so daß keine verlierbaren Muttern o.ä. Kleinteile in der Verpackung enthalten sind. Bei der Montage der Vorrichtung braucht das Schwenkteil 1 lediglich mit den Schenkeln 4, 5 zwischen die Rippen 3 und die Klemmschellen 19 eingeführt und mit den Ausnehmungen 29 auf den Bolzen 6 aufgesteckt, der Ringwulst 34 in den Schlitz 33 eingeführt, der gewünschte, an einer am Schenkel 5 des Schwenkteils 1 angebrachten Skala 40 ablesbare Elevationswinkel durch Drehen des Handrades 35 spielfrei eingestellt und anschließend diese Einstellung der Vorrichtung durch festes Anziehen der Flügelmuttern 21 von Hand dauerhaft fixiert zu werden. Dabei ist das Schwenkteil 1 automatisch dadurch verriegelt befestigt, daß beim Aufstecken zunächst die Schultern 41 der Ausnehmungen 29 an den schrägen Stirnflächen 39 der Einschnitte des Bolzen 6 entlanggleiten und diesen dabei gegen die Kraft der Feder 24 soweit verschieben, daß der enge Abschnitt 31 der Ausnehmungen 29 an den Schlüsselflächen 38 vorbeigleiten kann bis der innere kreisförmige Teil 30 den Bolzen 6 umfaßt, der sich dann durch die Federkraft soweit axial nach außen verschiebt, daß das Schwenkteil 1 um die Achse D drehbar und in radialer Richtung fest mit den Rippen 3 verbunden ist. Durch die linienförmige (und nicht punktförmige) Anlage der Schultern 41 an den schrägen Stirnflächen 39 ist dabei ein stets sicherer Gleitvorgang gewährleistet.
Zum eventuell nötigen Abnehmen der Antenne vom Schwenkteil 1 ist nach dem Lösen der Flügelmuttern 21 und dem Herausziehen des Ringwulstes 34 aus dem Schlitz 33 lediglich der Bolzen 6 von Hand zurückzudrücken und zusammen mit dem Reflektor 2 aus dem Schwenkteil 1 herauszuziehen. Dabei bewirkt der in der Nut 28 liegende Haken 26, daß sich der Bolzen 6 nicht verdrehen kann und die Schlüsselflächen 38 dadurch stets richtig in Bezug auf die Ausnehmungen 29 liegen.In the delivery state, all wing nuts 13, 21 and the hand rim 35 are loosely screwed onto the associated screws or threaded spindles 10, 20, 36, so that no losable nuts or the like. Small parts are included in the packaging. When installing the device, the swivel part 1 only needs to be inserted with the legs 4, 5 between the ribs 3 and the clamps 19 and with the recesses 29 on the bolt 6, the annular bead 34 inserted into the slot 33, the desired one on the leg 5 of the swivel part 1 attached scale 40 readable elevation angle by turning the handwheel 35 free from play and then this setting of the device to be permanently fixed by tightening the wing nuts 21 by hand. The swivel part 1 is automatically locked in such a way that, when plugging in, the shoulders 41 of the recesses 29 first slide along the inclined end faces 39 of the incisions of the bolt 6 and move it against the force of the spring 24 to such an extent that the narrow section 31 of the recesses 29 can slide past the key faces 38 until the inner circular part 30 comprises the bolt 6, which then moves axially outwards by the spring force to such an extent that the pivot part 1 can be rotated about the axis D and is firmly connected to the ribs 3 in the radial direction . The linear (and not punctiform) abutment of the shoulders 41 on the inclined end faces 39 ensures that the sliding operation is always safe.
To possibly remove the antenna from the swivel part 1, after loosening the wing nuts 21 and pulling out the annular bead 34 from the slot 33, only the bolt 6 has to be pushed back by hand and pulled out of the swivel part 1 together with the reflector 2. The hook 26 lying in the groove 28 ensures that the bolt 6 cannot twist and the key surfaces 38 thereby always correctly with respect to the recesses 29.

Die seitlichen Stirnflächen 42, 43 der Schenkel 4, 5 des Schwenkteils 1 sind zum freien Ende hin kreisförmig zur Drehachse D ausgebildet und an korrespondierende kreisförmige Stirnflächen 44, 45 jeweils einer an den Innenseiten der Rippen 3 vorgesehenen Erhebung 46 angepaßt. Auf diese Weise ist auch bei starken mechanischen Belastungen des Schwenkgelenkes durch Winddruck oder schwere Parabolspiegel eine sichere Führung und Abstützung erreicht, so daß eine saubere Einstellbarkeit und ein dauerhafter Einstellwert gewährleistet sind.The lateral end faces 42, 43 of the legs 4, 5 of the pivoting part 1 are circular towards the axis of rotation D towards the free end and are adapted to corresponding circular end faces 44, 45 each of a raised portion 46 provided on the inside of the ribs 3. In this way, safe guidance and support is achieved even with strong mechanical loads on the swivel joint by wind pressure or heavy parabolic mirrors, so that clean adjustability and a permanent setting value are ensured.

Claims (15)

  1. A device for fastening a microwave antenna support having a parabolic reflector to an upright support by means of a support element disposed on the back of the parabolic reflector, which support element, for setting the elevation angle of the antenna, is pivotable by means of an adjustable screw fitting around a rotatable shaft in relation to a U-shaped pivot element which can be fixed on the upright support, the rotatable shaft horizontally extending through the legs of the support element and of the pivot element, which are parallel to each other, vertically to the main beam direction of the antenna,
       characterized in that
       the support element merely consists of two parallel ribs (3) in the form of legs, which are of one piece with the parabolic reflector (2),
       only a penetrating bolt (6) is provided as rotatable shaft, on which the pivot element (1) can be lockingly pushed, and
       a threaded pin (36) is fixably hinged on one rib (3) at a distance to the rotatable shaft (D), on which, for setting the elevation angle of the antenna, a nut (35) is rotatable which engages a slit (33) of the pivot element (1) by means of an annular collar (34).
  2. A device in accordance with claim 1, characterized in that each leg (4, 5) of the pivot element (1) can be pressed on a large surface of one rib (3) by means of a clamp clip (19) and two screw connectors (20, 21).
  3. A device in accordance with claim 2, characterized in that the threaded pin (36) is hinged and is fixable on one of the four screw connectors (20, 21).
  4. A device in accordance with one of claims 1 to 3, characterized in that the two legs (4, 5) of the pivot element (1) each have a keyhole-shaped opening (29), open at the web side of the key, the round end area (30) of which, located on the inside, is slightly larger in diameter than the bolt (6), and that the bolt (6) extends outwardly over the two ribs (3) in the operational state, has on one end a compression spring (24) surrounding it which is supported on the one side on the exterior surface of one rib (3) and on the other on the bolt (6) itself or on a support device fixed on it, and adjoins with the other end a front part (26) of an exterior surface of the other rib (3) and has two parallel key surfaces (38) located opposite each other, the key widths of which are slightly smaller than the web part (31) of the openings (29) and which are arranged in such a way that in the operational state they are offset in the axial direction or at an angle of between approximately 10° and 170° in respect to the insertion opening of the openings (29), and that, for pushing onto or removing the pivot part (1) from the bolt (6), they face with one of the two narrow sides the insertion opening of the openings (29) because of the displacement of the bolt against the force of the compression spring (24) or of turning around the said angle.
  5. A device in accordance with claim 4, characterized in that the web part of the openings (29) has an exterior insertion section (32), the width of which is clearly greater than the width of the inner section (31) and the diameter of the bolt (6).
  6. A device in accordance with claims 4 or 5, characterized in that the front part (26) of the bolt (6) can be arrested to secure it against rotation.
  7. A device in accordance with claim 6, characterized in that the front part is a hook (26), which extends from the bolt (6) radially and vertically in relation to the key surfaces (38) and the width of which is slightly less than that of a groove (28) which is formed on the exterior surface of the other rib (3) and is of one piece with it and extends in the insertion direction of the pivot element (1).
  8. A device in accordance with one of claims 4 to 7, where the bolt is axially displaced for locking the pivot element, characterized in that the lateral front faces (39) of each key surface (38) extend at equal angles obliquely to the bolt shaft (D) in such a way, that when the pivot element (1) is pushed on the bolt (6); the latter is displaced against the force of the compression spring (24).
  9. A device in accordance with one of claims 1 to 3, characterized in that the two legs (4, 5) of the pivot element (1) each have a recess open towards the front face, the width of which is slightly larger than the diameter of the bolt, and that they have on their sides facing away from the respective ribs a lock washer fixedly connected with them, which removably arrests the pivot element.
  10. A device in accordance with one of claims 1 to 9, characterized in that the lateral front faces (42, 43) of the legs (4, 5) of the pivot element (1) are ring-shaped towards the rotational shaft (D), and that the inner surfaces of the ribs (3) facing the legs (4, 5) have raised portions (46) with circular front faces (44, 45) corresponding to the later front faces (42, 43).
  11. A device in accordance with one of claims 1 to 10, characterized in that the screwheads (22) of the screw connectors (20, 21) are polygonal and each rests with one edge against a tongue (21) pushed out of the associated clamp clip (19).
  12. A device in accordance with one of claims 1 to 11, characterized in that the pivot element (1) can be attached by means of a U-shaped strap (10) to two threaded spindles surrounding the upright support (9) as well as to a counter clamp clip (12) displaceable thereon by means of nuts (13), where it rests in two places of a V-shaped depression (14) of the base (11) of the pivot element (1), and that the counter clamp clip (12) has, on its side facing the upright support (9), an opening (18) open towards the latter and having two resting edges (17), their distance from each other being approximately one-half that of the resting places of the V-shaped depression (14).
  13. A device in accordance with claim 12, characterized in that on the outside of the V-shaped depression (14) a tongue (16) has been pushed out of the base element (11) of the pivot element (1) in such a way that it surrounds the U-shaped strap (10) over slightly more than half of its circumference.
  14. A device in accordance with claims 12 or 13, characterized in that the base element (11) of the pivot element (1) has a tub-shaped depression (15), against the bottom part of which the base element of the strap (10) rests.
  15. A device in accordance with one of claims 1 to 14, characterized in that a scale (40) is attached to at least one of the legs (5) of the pivot element (1), on which each scale mark which is aligned with the front edge of the rib (3) facing the upright support (9) indicates the elevation angle.
EP87101080A 1986-02-24 1987-01-27 Microwave antenna support with parabolic reflector adjustable in elevation Expired - Lifetime EP0235561B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101080T ATE66317T1 (en) 1986-02-24 1987-01-27 DEVICE FOR MOUNTING A MICROWAVE ANTENNA WITH AN ELEVATION-ADJUSTABLE SURFACE REFLECTOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3605860 1986-02-24
DE3605860A DE3605860C1 (en) 1986-02-24 1986-02-24 Device for attaching a microwave antenna with an adjustable surface reflector

Publications (2)

Publication Number Publication Date
EP0235561A1 EP0235561A1 (en) 1987-09-09
EP0235561B1 true EP0235561B1 (en) 1991-08-14

Family

ID=6294800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101080A Expired - Lifetime EP0235561B1 (en) 1986-02-24 1987-01-27 Microwave antenna support with parabolic reflector adjustable in elevation

Country Status (5)

Country Link
EP (1) EP0235561B1 (en)
AT (1) ATE66317T1 (en)
DE (2) DE3605860C1 (en)
DK (1) DK168139B1 (en)
ES (1) ES2025071B3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0146594B1 (en) * 1995-11-13 1998-08-17 배순훈 Position controlling system of satellite antenna
SE506201C2 (en) * 1996-03-04 1997-11-24 Cue Dee Produkter Ab Way and device for mounting a directional antenna in adjustable incline position
IT1293337B1 (en) * 1997-03-28 1999-02-25 Tele System Electronic Spa UNIVERSAL SUPPORT STRUCTURE PARTICULARLY OF A PARABOLIC ANTENNA AIMED AT THE ADJUSTMENT OF AT LEAST THE AZIMUT.
JP3047856B2 (en) * 1997-05-12 2000-06-05 日本電気株式会社 Antenna direction adjustment device
EA019799B1 (en) * 2011-10-26 2014-06-30 Закрытое Акционерное Общество "Голлард" Field mounted remote video surveillance device
CN111609339A (en) * 2019-02-26 2020-09-01 成都圣路电器有限公司 Elevation angle adjustable LED street lamp
CN112259953B (en) * 2020-10-19 2022-08-26 西安电子工程研究所 Multi-freedom-degree quick regulator for antenna subreflector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964281A (en) * 1959-01-21 1960-12-13 Union Metal Mfg Co Retractable arm construction
DE1266371B (en) * 1961-04-20 1968-04-18 Photokino Ges Mit Beschraenkte Mast clamp for swiveling an antenna bracket on a mast
DE1956172A1 (en) * 1969-11-07 1971-05-13 Siemens Ag Device for fastening an antenna arrangement
DE3127855A1 (en) * 1981-07-15 1983-06-30 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Holder for a parabolic antenna which can be pivoted in the azimuth and elevation direction
FR2538173A1 (en) * 1982-12-20 1984-06-22 Sicart OMNIDIRECTIONAL ORIENTATION DEVICE OF ANTENNA

Also Published As

Publication number Publication date
DK90187D0 (en) 1987-02-23
DE3772067D1 (en) 1991-09-19
ATE66317T1 (en) 1991-08-15
ES2025071B3 (en) 1992-03-16
DK90187A (en) 1987-08-25
EP0235561A1 (en) 1987-09-09
DE3605860C1 (en) 1987-08-20
DK168139B1 (en) 1994-02-14

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