DK168139B1

DK168139B1 - CONFIRMATION FOR MICROWAVE ANTENNA WITH ADJUSTABLE REFLECTOR

Info

Publication number: DK168139B1
Application number: DK090187A
Authority: DK
Inventors: Guenter Dobler; Birgit Nelhuebel; Hans Reimold; Hermann Rothluebbers
Original assignee: Hirschmann Richard Gmbh Co
Priority date: 1986-02-24
Filing date: 1987-02-23
Publication date: 1994-02-14
Also published as: EP0235561B1; EP0235561A1; DK90187D0; ATE66317T1; ES2025071B3; DE3605860C1; DE3772067D1; DK90187A

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

DK 168139 B1DK 168139 B1

Den foreliggende opfindelse angår en anordning til befæstigelse af en mikrobølgeantenne med fladereflektor på et støtterør, med en holdedel, som er anbragt på bagsiden af fladereflektoren, og som i forhold til en på støtterøret fastgjort, U-formet svingdel kan drejes om en drejeakse ved hjælp af en indstillelig skrueanordning til indstilling af antennens elevationsvinkel, og som 5 vandret går igennem de indbyrdes parallelle og i hinanden gribende ben af holdedelen og svingdelen, der er lodrette i forhold til hovedstråleretningen for antennen.BACKGROUND OF THE INVENTION The present invention relates to a device for attaching a microwave reflector with surface reflector to a support tube, with a retaining member disposed on the back of the surface reflector and which can be rotated about a rotary axis by means of a rotary axis relative to a supporting tube. of an adjustable screw device for adjusting the elevation angle of the antenna and passing horizontally through the mutually parallel and interconnected legs of the holding portion and pivot portion which are vertical with respect to the main beam direction of the antenna.

En sådan anordning, som særligt egner sig til fastholdelse af mindre parabolantenner for satel-litradiomodtagelse, kendes allerede fra DE-OS 31 27 855. Ved denne holdeanordning er dre-10 jeanordningen for det første kostbar med hensyn til materialebehov og fremstilling på grund af de mange enkeltdele (skrueforbindelser, befæstigelsesvinkel for skruespindleme), og for det andet kompliceret ved anvendelsen, specielt med hensyn til indstilling af elevationsvinklen. Derudover fordres der ekstra fremstillingsomkostninger på grund af, at holderen skal fastgøres til reflektoren. Med henblik på minimalisering af indpakningsstørrelsen kan holdedelen ved 15 denne kendte udførelse imidlertid være adskilt fra drejedelen; derved får man dog løse dele i indpakningen, der kan gå tabt, og montageomkostningeme for holdeanordningen bliver igen gjort større.Such a device, which is particularly suitable for holding smaller satellite antennas for satellite radio reception, is already known from DE-OS 31 27 855. In this holding device, the rotary device is firstly expensive in terms of material requirements and manufacture due to the many individual parts (screw joints, fastening angle of the screw spindles), and secondly complicated by the application, especially with respect to the adjustment of the elevation angle. In addition, additional manufacturing costs are required because the holder must be attached to the reflector. However, in order to minimize the packing size, the holding portion of this known embodiment may be separate from the rotating portion; however, loose parts are lost in the packaging that can be lost and the mounting costs for the holding device are again increased.

Også den fra DE-OS 19 56152 kendte anordning af ovennævnte art er forholdsvis dyr på 20 grund af de store fremstillingsudgifter for de mange skrueforbindelser, den krævede fastgørelsesanordning til forbindelse med reflektoren, såvel som den komplicerede opbygning af dre-jeanordningen med drejeligt lejrede tværbolte og afstivningsskrue. Derudover udviser denne udførelse en stor indpakningsdybde, fordi sidestykkerne på drejedelen skal være så brede som muligt, for at et tilstrækkelig stort indstillingsområde for elevationsvinklen kan opnås.Also the device of the above-mentioned type known from DE-OS 19 56152 is relatively expensive because of the large manufacturing costs of the many screw connections, the required fastening device for connection with the reflector, as well as the complicated construction of the rotary device with pivotally mounted cross bolts and bracing screw. In addition, this embodiment exhibits a great wrapping depth, because the side pieces of the pivot portion must be as wide as possible to allow a sufficiently large adjustment range for the elevation angle.

2525

Opfindelsen har til hensigt at tilvejebringe en anordning af den indledningsvis nævnte type, der er opbygget enkelt og billigt, udviser en ringe indpakningsdybde uden mistelige dele og muliggør en hurtig såvel som vedvarende sikker montage og indstillelighed af elevationsvinklen.The invention intends to provide a device of the type mentioned initially, which is simple and inexpensive, exhibits a low packing depth without foggy parts and allows for rapid as well as sustained safe mounting and adjustability of the elevation angle.

30 Denne opgave løses ifølge opfindelsen ved, at holdedelen består af to indbyrdes og i forhold til hovedstråleretningen parallelle ribber, der er fremstillet i eet stykke med fladereflektoren, at der blot som omdrejningsakse er tilvejebragt een gennemgående bolt, hvorpå svingdelen fastlåst kan anbringes, og at der på en ribbe med en vis afstand til omdrejningsaksen er anbragt en gevindstift, hvorpå der med henblik på indstilling af antennens elevationsvinkel drejeligt er an-35 bragt en møtrik, som med en ringvulst griber ind i en slids på svingdelen.30 This task is solved according to the invention in that the holding part consists of two mutually parallel ribs, which are made in one piece with the surface reflector, that a through bolt is provided only as a pivot axis on which the pivot part can be fixedly locked and that a threaded pin is arranged on a rib at some distance from the axis of rotation, on which a nut is pivotally mounted for adjusting the elevation angle of the antenna, which engages with a ring bead in a slot on the pivot member.

Anordningen ifølge opfindelsen kan allerede fremstilles på enkel og billig måde på grund af fremstillingen i eet stykke af holdedelen og fladereflektoren, samt den komponentbesparende, DK 168139 Bl 2 ukomplicerede opbygning af drejeanordningen. Ved hjælp af svingdelen, der kan påsættes og fastlåses til bolten, som udgør drejeaksen, kan montagen derudover foretages enkelt og hurtigt.The device according to the invention can already be manufactured in a simple and inexpensive manner due to the manufacture in one piece of the holding part and the surface reflector, as well as the component-saving, uncomplicated construction of the turning device. In addition, by means of the swivel part which can be mounted and locked to the bolt which constitutes the pivot axis, the mounting can be done simply and quickly.

På grund af adskillelsen mellem svingdelen med mastfastgørelsesskjold og holdedelen, som er fremstillet i samme stykke som fladereflektoren, udviser antennen en lille indpakningsdybde og 5 ingen mistelige, løse dele.Due to the separation between the swing part with mast attachment shield and the holding part which is made in the same piece as the surface reflector, the antenna exhibits a small wrapping depth and no misty, loose parts.

Ydermere muliggøres på fordelagtig måde indstillingen af elevationsvinklen med yderst ringe bekostning, nemlig ved hjælp af en gevindstang med en møtrik, der mest hensigtsmæssigt er udformet som et håndbetjent gribehoved, uden kontramøtrikker, drejelige tværbolte og lignen-10 de, hvorved der alligevel sikres en hurtig, slørfri og dog præcis og sikker vinkelindstillelighed. Endelig kan bolten, der udgør drejeaksen, samtidig anvendes som håndtag, hvorved antennen, især ved relativt store reflektordimensioner, meget nemt kan håndtransporteres.Furthermore, it is advantageously possible to adjust the elevation angle with extremely little expense, namely by means of a threaded rod with a nut, which is most conveniently designed as a hand-operated gripping head, without counter nuts, rotatable cross bolts and the like, thus ensuring a fast , blur-free and yet precise and safe angular adjustability. Finally, the bolt forming the pivot axis can also be used as a handle, whereby the antenna, especially with relatively large reflector dimensions, can be easily transported by hand.

Dette opnås ifølge opfindelsen ved, at mekanismen udformes som anvist i kravene.This is achieved according to the invention in that the mechanism is designed as described in the claims.

1515

Ved udformningen ifølge krav 2 opnår man med enkle midler et højt fladetryk mellem svingdel og holdedel (ribber) og dermed en omgivelsesuafhængig, vedvarende sikker fiksering af den indstillede antenneposition i det lodrette plan.In the design according to claim 2, with high means a high surface pressure is obtained between the swing part and the holding part (ribs) and thus an environmentally independent, sustained secure fixation of the set antenna position in the vertical plane.

20 Ved hjælp af dobbeltudnyttelsen af den ene af de fire skrueforbindeiser ifølge krav 3 kan der på omkostningsbesparende måde ses bort fra egne fastgørelsesmidler for gevindstangen.By means of the double utilization of one of the four screw joints according to claim 3, own fastening means for the threaded rod can be disregarded in a cost-saving manner.

I krav 4 angives der en hensigtsmæssig udførelse af svingdel og bolt, som muliggør en enkel montage uden løsnen af dele (fx skrueforbindelse). Efter at bolten manuelt er anbragt mod 25 fjedertryk i montagestillingen, behøver svingdelen (ved en udførelse ifølge krav 2 med benene mellem ribberne og klemmeskålene) blot med de nøgleformede udsparinger at blive påsat boltene, som efter frigørelsen ved hjælp af trykfjederens kraft glider tilbage i den udgangsposition, hvor svingdelen er fastgjort drejeligt på bolten. Med henblik på en enkel anordning af fjederen er det gunstigste af de i krav 4 angivne alternativer i reglen det, hvor bolten ved fje-30 derkraftpåvirkning bliver forskudt aksiait. I dette tilfælde kan der i stedet for nøglefladen også være forudset en ringnot (om muligt med koniske frontflader) eller en på samme måde virkende anden indsnøring.Claim 4 specifies a suitable embodiment of swivel part and bolt, which enables a simple mounting without loosening of parts (eg screw connection). After the bolt is manually positioned against 25 spring pressure in the mounting position, the swivel part (in an embodiment according to claim 2 with the legs between the ribs and the clamping cups) need only be fitted with the key-shaped recesses, which after the release by the force of the compression spring slip into the bolts. starting position where the swivel part is pivotally attached to the bolt. For the purpose of a simple arrangement of the spring, the most advantageous of the alternatives specified in claim 4 is usually that where the bolt is displaced axially by spring force action. In this case, instead of the key surface, a ring groove (if possible with tapered front faces) or a similarly shaped other notch may also be provided.

Påsætningen af svingdelen kan ske særlig enkelt og hurtigt, når de nøglehulformede udsparin-35 ger ifølge krav 5 på det åbne endestykke udviser et udvidet område, der tjener som indføringshjælp.The swivel portion can be applied particularly easily and quickly when the keyhole recesses of claim 5 of the open end piece exhibit an expanded area serving as an insertion aid.

3 DK 168139 B13 DK 168139 B1

Ved hjælp af en udformning ifølge krav 6 sikres det på simpel måde, at nøgleflademe hele tiden står i den ønskede vinkelposition. Ved en simpel udførelse kan der derudover fx være forudset et firkanthoved og en næse, som ligger an derimod.By means of a design according to claim 6, it is simply ensured that the key faces are always in the desired angular position. In addition, in a simple embodiment, a square head and a nose may be provided, for example.

5 Med henblik på den praktiske håndtering er udformningen ifølge krav 7 mere fordelagtig, hvor krogen under drift ligger i noten og således sikrer mod uønsket drejning, medens den under montagen ca. 90° drejet ligger an mod en notvæg (hvis højde svarer til den ønskede aksialfor-skydning af bolten) og på denne måde giver montøren begge hænder fri til de øvrige montagearbejder.For practical handling, the design according to claim 7 is more advantageous, where the hook during operation lies in the groove and thus ensures against undesired rotation, while during installation it is approx. 90 ° pivoted abuts against a groove wall (the height of which corresponds to the desired axial displacement of the bolt) and in this way the installer gives both hands free for the other installation work.

10 Påsætningen (henholdsvis aftagningen) af svingdelen på (fra) boltene ved en udførelse af nøglefladen i henhold til krav 8 er særlig enkel, fordi boltene herved ved hjælp af trykket fra de tilsvarende randdele af de nøgleformede udsparinger af benet på svingdelen automatisk bliver forskubbet på de skrå sidefrontflader (eller på tilsvarende måde i en ringnot) i stedet for manu-15 elt og ved den selvvirkende tilbageglidning bevirker en tvangsmæssig spærring. Her ligger krogen med fordel hele tiden i noten, således at bolten er sikret mod overdrejning, og nøglefladerne hele tiden har den rigtige position.The application (or removal) of the swivel part to (from) the bolts in an embodiment of the key surface according to claim 8 is particularly simple because the bolts are thereby automatically displaced by means of the pressure from the corresponding edge parts of the key-shaped recesses of the leg of the swivel part. the oblique side front faces (or similarly in a ring groove) instead of manually and by the self-acting back slide cause a forced lockout. Here, the hook advantageously lies all the time in the groove, so that the bolt is secured against over-turning and the key faces are always in the correct position.

Et alternativ til denne udførelse, og som i visse tilfælde kan være fornuftigt, angives i krav 9.An alternative to this embodiment, which may in some cases be reasonable, is stated in claim 9.

2020

Den i krav 10 beskrevne udførelse af anordningen ifølge opfindelsen medfører på fordelagtig måde en problemfri føring ved indstillingen af elevationen i et stort vinkelområde samt en af-støtning af svingdelen på reflektorribberne og bevirker på grund af denne forhøjelse af stabiliteten af anordningen en problemfri indstillelighed, også ved stor antennevægt og/eller vindbe-25 lastning og - sammen med forholdsreglerne ifølge krav 2 - en vedvarende nøjagtig overholdelse af den indstillede elevationsvinklel inden for meget snævre grænser.Advantageously, the embodiment of the device according to the invention described in claim 10 results in a problem-free guide when adjusting the elevation at a wide angular range and a support of the swivel part on the reflector ribs and, because of this increase in the stability of the device, also causes trouble-free adjustability. at high antenna weight and / or wind load and - together with the precautions according to claim 2 - a sustained accurate adherence to the set elevation angle within very narrow limits.

Ved en udformning af anordningen ifølge krav 11 opnås der på enkel og yderst prisgunstig måde en fungerende skrueforbindelsesfastgørelse uden ekstra, i givet fald mistelige dele.In a design of the device according to claim 11, a simple and extremely economical screw connection fastening is obtained without additional, if any, misty parts.

3030

Ved kendte mastfastgørelser med U-bøjle og spændbøjle har dennes mod støtterøret vendende flade enten overhovedet ingen eller en hel række af takker. Ved begge udførelser har forsøg vist, at en ensidig fastspænding af fløjmøtrikkerne, som det i praksis regelmæssigt er tilfældet, fører til uacceptabel overdrejning af antennen ud af den ønskede azimutposition. Ved 35 den enkle foranstaltning ifølge krav 12 undgås dette på sikker måde.In known mast attachments with U-bracket and clamping bracket, its surface facing the support pipe has either none at all or a whole row of branches. In both embodiments, experiments have shown that unilateral clamping of the wing nuts, as is usually the case in practice, leads to unacceptable transfer of the antenna out of the desired azimuth position. By the simple measure of claim 12, this is safely avoided.

En ifølge krav 13 forudset holdelaske forhindrer, at den U-formede bøjle glider i retning af fladereflektoren og derved hæmmer montagen.A holding bracket provided according to claim 13 prevents the U-shaped brace from sliding in the direction of the surface reflector, thereby inhibiting the mounting.

4 DK 168139 B14 DK 168139 B1

En væsentlig forøgelse af stabiliteten forden egentlige mastbefæstigelse opnås ifølge krav 14 ved, at basisdelen for bøjlen i hele sin længde ligger an mod en tilsvarende karformet fordybning af svingdelen.A substantial increase in stability for the actual mast attachment is achieved according to claim 14, in that the base part of the bracket, throughout its length, abuts against a corresponding tubular depression of the pivot part.

5 Med henblik på vedvarende stor præcision af elevationsvinkelindstillingen, også efter flere indstillingsoperationer, er anbringelsen af en skala i henhold til krav 15 til hurtig indstilling af den ønskede antennehældning særligt hensigtsmæssig.For the sake of sustained high precision of the elevation angle adjustment, even after several adjusting operations, the placement of a scale according to claim 15 for rapid adjustment of the desired antenna inclination is particularly appropriate.

Figurerne viser ifølge opfindelsen et udførelseseksempel for anordningen med en satellitmod-10 tagerantenne med parabolspejl, fx til modtagelse af DBS-satellitprogrammer, hvorved parabol-reflektoren på grund af sin størrelse kun er vist delvist. Således viser fig. 1 et delvist snitbillede af bagsiden for den til støtterøret monterede antenne og fig. 2-4 delvist gennemskåme billeder efter de i fig. 1 angivne snitlinier.The figures according to the invention show an exemplary embodiment of the device with a satellite receiver antenna with satellite dish, for example for receiving DBS satellite programs, whereby the satellite reflector is only partially shown due to its size. Thus, FIG. 1 is a partial sectional view of the rear of the antenna mounted to the support tube; and FIG. 2-4 partially sectioned images according to the figures of FIG. 1 sectional lines indicated.

15 Anordningen består af en U-formet svingdel 1, to indbyrdes parallelle, i ét stykke med parabol reflektoren 2 fremstillede og fra dennes rygvæg i retning af reflektoraksen A (identisk med hovedstrålingsretningen) fremragende ribber 3, en cylindrisk bolt 6, som går igennem ribberne 3 og fligene 4,5 på svingdeien 1 og forløber lodret i forhold til reflektoraksen A og danner den vandrette drejningsakse D, en anordning 7 til forstilling af elevationsvinklen for mikrobølgean-20 tennen samt en mastforskruning 8 til befæstigelse af svingdelen 1 på et støtterør 9.The device consists of a U-shaped pivot portion 1, two mutually parallel, integrally formed with the satellite reflector 2 and projecting from its back wall towards the reflector axis A (identical to the main radiation direction) ribs 3, a cylindrical bolt 6 passing through the ribs 3 and the tabs 4,5 on the pivot portion 1 and extend vertically relative to the reflector axis A to form the horizontal pivot axis D, a device 7 for adjusting the elevation angle of the microwave antenna and a mast gland 8 for attaching the pivot portion 1 to a support tube 9.

Mastforskruningen 8 består af en U-formet bøjle 10, som med sine frie arme, der er udformet som gevindbolte, går igennem basisdelen 11 for svingdelen 1 og griber om støtterøret 9, såvel som en spændbøjle 12, derved montering af anordningen ved hjælp af fløjmøtrikker 13 bliver 25 presset mod støtterøret 9. Basisdelen 11 af svingdelen 1 udviser såvel i den øverste og ne-derste ende en U-formet fordybning 14, mod hvis sidevægge støtterøret 9 ligger an, som i midterområdet en bred, skålformet fordybning 15, mod hvis bund basisdelen af bøjlen 10 til dens stabilisering ligger an. Med henblik på lettelse af montagen fastholdes bøjlen 10 til vinkeljemet 1 ved hjælp af en laske 16, som delvis griber om den og er udpresset af basisdelen 11 for 30 svingdelen 1 og passende gennemboret. Spændbøjlen 12 ligger an mod støtterøret 9 med to kanter 17 af en rektangulær udsparing 18. På denne måde undgås effektivt en fordrejning fra den ønskede position i azimutretning, særligt ved i praksis ofte uundgåelig ensidig fastspænding af fløjmøtrikkeme 13.The mast gland 8 consists of a U-shaped bracket 10 which, with its free arms designed as threaded bolts, passes through the base portion 11 of the pivot portion 1 and engages the support tube 9, as well as a clamp 12, thereby mounting the device by means of wing nuts. 13, 25 is pressed against the support tube 9. The base portion 11 of the pivot portion 1 exhibits, at the upper and lower ends, a U-shaped recess 14 against which the side walls of the support tube 9 abut, and in the middle region a wide bowl-shaped recess 15 against the bottom portion of the hoop 10 for its stabilization abuts. For ease of assembly, the bracket 10 is secured to the angular body 1 by means of a groove 16 which partially grips it and is extruded by the base part 11 of the swing part 1 and suitably pierced. The clamp 12 abuts the support tube 9 with two edges 17 of a rectangular recess 18. In this way, a distortion is effectively avoided from the desired position in the azimuthal direction, especially by in practice often unavoidable unilateral clamping of the wing nuts 13.

35 Ved levering er svingdelen 1 med mastforskruningen 8 adskilt fra resten af anordningen, således at antennen udviser minimal indpakningsdybde. Således stikker bolten 6 igennem centrale, i figurerne usynlige, huller i ribberne 3 og en på hver ribbeinderside anordnet spændbøjle 19, som hver for sig kan presses mod ribberne 3 ved hjælp af to skruer 20 og fløjmøtrikker 21.On delivery, the swivel portion 1 with the mast gland 8 is separated from the rest of the device so that the antenna exhibits minimal wrapping depth. Thus, the bolt 6 protrudes through central, invisible figures, holes in the ribs 3 and a clamp 19 arranged on each ribbed side, which can be pressed separately against the ribs 3 by means of two screws 20 and wing nuts 21.

5 DK 168139 B15 DK 168139 B1

Skruerne 20 har sekskanthoveder 22, mod hvis ene flade der som overdrejningsbeskyttelse ligger et fremspring 23 an, og som er presset ud af spændbøjleme 19, således at skrueforbin-delseme kan håndteres uden værktøj.The screws 20 have hexagonal heads 22 against one face of which protrudes a protrusion 23 on which is projected out of the clamps 19, so that the screw connections can be handled without tools.

5 Det ene endestykke af bolten 6 bærer en trykfjeder 24, der passer snævert omkring det, og som til den ene side afstøttes fra yderfladen af ribben 3 og til den anden side med en endevikling af mindre tværsnit mod den ydre frontflade af en ringbot 25. (Selvfølgelig kunne der i stedet for noten 25 være forudset en sikringsring eller en lignende indretning med samme funktion.) Det andet endestykke af bolten 6 er udformet som en i forhold til aksen D 90° drejet krog 10 med omtrentligt rektangulært tværsnit, og som sikret mod overdrejning ligger i en not 28, der er dannet i en sidevæg 27, som er udformet på ydervæggen af en ribbe 3. Fligene 4,5 på svingdelen 1 har hver en nøglehulformet og mod kammen åben udsparing 29, hvis cirkelformede indre del 30 har en diameter, som er lidt større end bolten 6, medens bredden af det indvendige, kamformede afsnit 31 er betydeligt mindre end bolttværsnittet, og det ydre afsnit 32 som 15 indføringsåbning er betydeligt bredere.5 One end piece of the bolt 6 carries a compression spring 24 which fits snugly around it and which is supported on one side from the outer surface of the rib 3 and on the other side with a smaller cross-section end winding towards the outer front surface of a ring bone 25. (Of course, instead of the groove 25, a securing ring or similar device with the same function could be provided.) The other end piece of the bolt 6 is designed as a hook 10 of approximately rectangular cross-section, rotated in relation to the axis D 90 °, and as secured. anti-rotation lies in a groove 28 formed in a side wall 27 formed on the outer wall of a rib 3. The tabs 4,5 on the swing part 1 each have a keyhole-shaped and recessed opening 29, the circular inner part 30 having a diameter slightly larger than the bolt 6, while the width of the inner, cam-shaped section 31 is considerably smaller than the bolt cross-section, and the outer section 32 as the insertion opening is considerably wider.

I fligen 5 af svingdelen 1 er der forudset en slids 33, hvori der ved drift af antennen griber en ringvulst ind, og som er del af et håndhjul 35, der kan påskrues en gevindspindel 36, som i den anden ende ved hjælp af en laske 37 er forbundet med en af skruerne 20.In tab 5 of the swivel part 1, a slot 33 is provided in which a ring bead engages in operation of the antenna and is part of a handwheel 35 which can be screwed on a threaded spindle 36, which at the other end by means of a wrench 37 is connected to one of the screws 20.

2020

Omtrent på linie med gennemføringen gennem ribberne 3 har bolten 6 to ens indskæringer med over for hinanden liggende parallelle nøgleflader 38 og skråt i forhold til aksen D forløbende frontflader 39, som sideværts begrænser nøgleflademe 38. Nøgleflademe er en smule mindre end bredden af afsnittet 31 for udsparingen 29.Approximately in line with the passage through the ribs 3, the bolt 6 has two identical notches with opposite parallel key faces 38 and oblique to the axis D extending front faces 39, which laterally restrict the key faces 38. The key faces are slightly smaller than the width of the section 31 for the recess 29.

2525

Ved leveringen er samtlige fløjmøtrikker 13,21 såvel som håndhjuiet 35 løst påskruet de tilhørende skruer, henholdsvis gevindspindler 10,20,36, således at der ikke rummes nogen mistelige møtrikker eller andre smådele i indpakningen. Ved montagen af indretningen behøver svingdelen 1 kun med fligene 4,5 at blive indført mellem ribberne 3 og spændbøjleme 19 og 30 med udsparingerne 29 at blive påsat bolten 6, ringvulsten 34 indført i slidsen 33, den ønskede elevationsvinkel, som kan aflæses på en skala 40, der er anbragt på en af fligene 5 af svingdelen 1, slørfrit indstillet ved drejning af håndhjulet 35, og endeligt indstillingen af anordningen vedvarende fikseret ved hjælp af fast tilspænding af fløjmøtrikkeme 21 med hånden. Således bliver svingdelen 1 automatisk fastgjort og afspærret, ved at skuldrene 41 af udsparingerne 29 35 ved påsætningen først glider langs med de skrå frontflader 39 af indskæringerne på bolten 6 og derved forskyder disse så langt mod kraften fra fjederen 24, at den smalle udskæring 31 i udsparingerne 29 glider forbi nøglefladerne 38, indtil den indvendige cirkelformede del 30 omslutter bolten 6, som så ved hjælp af fjederkraften forskyder sig så langt aksialt udad, at svingde- 6 DK 168139 B1 len 1 bliver drejelig omkring aksen D og i radial retning fast forbundet med ribberne 3. Ved det linieformede (og ikke punktformede) anlæg af skuldrene 41 mod de skrå frontflader 39 sikres således en vedvarende stabil glidning.Upon delivery, all wing nuts 13,21 as well as handgrip 35 are loosely screwed to the associated screws or threaded spindles 10,20,36, so that no misty nuts or other small parts are contained in the package. In assembling the device, the pivot member 1 need only be inserted between the ribs 3 and the clamps 19 and 30 with the recesses 29 to be inserted with the bolt 6, the ring bead 34 inserted in the slot 33, the desired elevation angle which can be read on a scale 40, which is arranged on one of the tabs 5 of the pivot member 1, blur-free adjusted by turning the handwheel 35, and finally the adjustment of the device permanently fixed by means of fixed tightening of the wing nuts 21 by hand. Thus, the pivot member 1 is automatically fastened and blocked by the shoulders 41 of the recesses 29 35, upon application, first sliding along the inclined front faces 39 of the notches on the bolt 6, thereby displacing them so far against the force of the spring 24 that the narrow cut 31 of the the recesses 29 slide past the key faces 38 until the inner circular portion 30 encloses the bolt 6, which then, by means of the spring force, displaces so far axially outwards that the pivot 1 becomes pivotal about the axis D and is fixed in a radial direction. with the ribs 3. Thus, at the linear (and not point-shaped) abutment of the shoulders 41 against the inclined front faces 39, a continuous stable sliding is ensured.

5 Ved en eventuel nødvendig aftagning af antennen fra svingdelen 1 behøver man efter løsnen af fløjmøtrikkerne 21 og udtagningen af ringvulsten 34 fra slidsen 33 blot med hånden at tilbagetrykke bolten 6 og sammen med reflektoren 2 udtrække dem fra svingdelen 1. Herved bevirker den i noten 28 liggende krog 26, at bolten 6 ikke kan blive overdrejet, og nøgleflademe 38 derved hele tiden ligger rigtigt i forhold til udsparingerne 29.5 In case of any necessary removal of the antenna from the swing part 1, after unscrewing the wing nuts 21 and the removal of the ring bead 34 from the slot 33, it is only necessary to retract the bolt 6 by hand and extract them from the swing part 1 together with the reflector 2. lying hook 26, that the bolt 6 cannot be over-tightened, and the key faces 38 are thereby always in correct proportion to the recesses 29.

1010

Sidefrontflademe 42,43 af fligene 4,5 på svingdelen 1 er i deres frie ende cirkelformet dannet i forhold til drejeaksen D og på modsvarende cirkelformede frontflader 44,45 hver tilpasset en forhøjning 46 på indersiden af ribberne 3. På denne måde opnås der en sikker føring og af-støtning også ved stærke mekaniske belastninger af svingleddet på grund af vindtryk eller 15 tunge parabolspejle, således at en god indstillelighed og konstant opretholdt indstillingsværdi sikres.The side front faces 42, 43 of the tabs 4,5 on the pivot member 1 are formed in their free end circular with respect to the pivot axis D and on corresponding circular front faces 44,45 each adapted to an elevation 46 on the inside of the ribs 3. In this way a secure guiding and supporting even with strong mechanical loads on the pivot joint due to wind pressure or 15 heavy dish mirrors so that a good adjustability and constant maintained setting value are ensured.

Claims

1. Apparatus ti) attaching a microwave antenna with surface reflector to a support tube, with a retaining member located on the back of the surface reflector, which can be rotated by means of an adjustable screwing device for adjusting the U-shaped swivel part to the support tube the angle of elevation of the antenna about a pivot axis, passing horizontally through the mutually parallel, intersecting tabs of the holding portion and the pivoting portion which are vertical with respect to the principal beam direction of the antenna, characterized in that the holding portion consists of two mutually parallel ribs relative to the principal beam direction; (3), integral with the surface reflector 10 (2), that as a pivot axis only a through bolt (6) is provided, on which the pivot member (1) can be lockably attached and that a rib (3) in a some distance from the pivot axis (D) can be fixedly adjustable a threaded pin (36) on which for adjusting the elevation angle of the antenna can be turned a nut (35) which engages with a ring bead (34) into a slot (33) on the pivot member (1). 15

Device according to claim 1, characterized in that each tab (4,5) of the pivot part (1) can be pressed against a rib (3) by means of a tensioning bracket (19) and two screw connections (20, 21) with a large surface. ).

Device according to claim 2, characterized in that the threaded pin (36) can be controlled and fixed against one of the four screw connections (20, 21).

Device according to claims 1-3, characterized in that the two tabs (4,5) of the swivel part (1) each have a keyhole-shaped recess (29) open to the cam side, whose inwardly rounded end region (30) has a slightly larger a cross-section other than the bolt (6) and, during operation of the device, protrudes outwardly and forwardly over the two ribs (3), at one end exhibiting a corresponding compression spring (24) which partly supports the outer surface of the one rib (3) and partly against the bolt itself (6) or a holding device attached thereto, and at the other end with a head portion (26) abutting the outer surface of the second rib (3) and exhibiting two parallel, mutually opposing 30 key faces (38), the key widths of which are slightly smaller than the cam portion (31) of the recesses (29), and which are arranged so that in the operating mode they are either displaced in the axial direction or rotated at an angle between approx. 10 ° and 170 ° with respect to the insertion opening for the recesses (29) and for the purpose of attaching, respectively, the pivoting part (1) of, respectively, from the bolt (6) by its displacement against the force of the compression spring (24) or turning said 35 angle is facing one of the two narrow sides of the recess inlet for the recesses (29). 8 DK 168139 Bl

Device according to claim 4, characterized in that the cam part of the recesses (29) has an outer insertion area (32), the width of which is considerably greater than the width of the inner area (31) and the diameter of the bolt (6).

Device according to claim 4 or 5, characterized in that the main part (26) of the bolt (6) can be fixed as an over-locking device.

Device according to claim 6, characterized in that the main part is a hook (26) which projects radially and vertically with respect to the key faces (38) of the bolt (6) and the width of which is somewhat smaller than that of a groove (28) formed on the outer surface of the second rib (3) and extending in the direction of insertion of the pivot member (1).

7 DK 168139 Pg

Device according to claims 4-7, wherein the bolt for locking the pivot member is axially displaced, characterized in that the side front surfaces (39) for each key surface (38) extend at the same angle and in such a manner inclined with respect to the bolt axis (D). ), that the pivot member (1) is applied to the bolt (6) by the application of the bolt (6).

Device according to claims 1-3, characterized in that the two tabs (4,5) of the pivot part (1) each exhibit a recess open to the front side, the width of which is somewhat larger than the bolt diameter 20 the respective rib facing side exhibits a securely attached securing disc which fixes the pivot member in a radially releasable manner.

Device according to claims 1-9, characterized in that the side front surfaces (42, 43) of the tab (4,5) on the pivot part (1) are formed circularly about the pivot axis (D) and the inner rib faces 25 facing the tabs. (4,5), show elevations (46) with circular front faces (44,45) corresponding to the side front faces (42, 43).

Device according to claims 1-10, characterized in that the screw heads (22) on the screw connections (20, 21) are formed as polygons and each with an edge abuts on a lug 30 (23) which is pressed out of the associated strap (19).

Device according to claims 1-11, characterized in that the pivot part (1) can be secured to the support pipe by means of a U-shaped bracket (10) with two threaded spindles enclosing the support pipe (9), as well as with a strap (12). ), which can be displaced thereon by the nut (13), thereby abutting two locations of a V-shaped recess (14) in the base (11) of the pivot member (1) and the clamping band (12) thereon. a side facing the support tube (9) exhibits an open recess (18) with two abutment edges (17), the spacing of which is approx. half the size of the V-shaped recess at the plant site (14). DK 168139 B1 g

Device according to claim 12, characterized in that on the outside of the V-shaped recess (14), a groove (16) of the base part (11) of the pivot part (1) is extruded and so annularly bent that it encloses it. -shaped bracket (10) along slightly more than half the circumference. 5

Device according to claim 12 or 13, characterized in that the base part (11) of the pivot part (1) has a tubular recess (15) against which the bottom part of the bracket (10) abuts.

Device according to claims 1-14, characterized in that a scale (40) is arranged at least on one tab (5) of the pivot part (1), as with the dividing line that aligns with the rib front edge, which faces the support tube (9), indicates the elevation angle.