EP0038788A1 - Antennenhalterung - Google Patents

Antennenhalterung Download PDF

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Publication number
EP0038788A1
EP0038788A1 EP81850066A EP81850066A EP0038788A1 EP 0038788 A1 EP0038788 A1 EP 0038788A1 EP 81850066 A EP81850066 A EP 81850066A EP 81850066 A EP81850066 A EP 81850066A EP 0038788 A1 EP0038788 A1 EP 0038788A1
Authority
EP
European Patent Office
Prior art keywords
mounting structure
slab
adjustment member
pivot pin
axle
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.)
Withdrawn
Application number
EP81850066A
Other languages
English (en)
French (fr)
Inventor
Per-Olof Bäckman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luxor AB
Original Assignee
Luxor AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Luxor AB filed Critical Luxor AB
Publication of EP0038788A1 publication Critical patent/EP0038788A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • H01Q1/1221—Supports; Mounting means for fastening a rigid aerial element onto a wall
    • 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

  • This invention refers to a mounting structure for an element which is to be directed to a fixed point in space.
  • the element may be a mirror or a spot-light which is to be directed to a fixed point in space.
  • the element preferably is a parabolic antenna of the kind which is intended to be used in receiving TV signals from stationary satellites.
  • the mounting structure is intended to be mounted on a building, for example a house, a building part, for example a house gable, a chimney, a house wall, a house roof, a mast or a base structure, for example a pillar of concrete, iron etc. anchored in the ground (similar to those used for supporting a sundial).
  • a prior mounting structure of this kind includes a stand with a rotatable aerial mounted in the stand which antenna is to be directed to the satellite apparently stationary in the sky.
  • the stand is placed on a bed and after making a rough adjustment a series of small adjustments of the azimuth and elevation angles are carried out, said adjustments influencing each other, so that a satisfactory setting may be achieved.
  • Another prior mounting structure for parabolic antennas includes a mast tube bent at -an angle on which the aerial is fixedly mounted.
  • the mast tube is mounted vertically, and the aerial is turmed so that it points towards the satellite in the azimuth direction.
  • the portion bent at an angle now has such a predetermined inclination in relation to the vertical line that the antenna is presupposed to point approximately in the correct elevation direction.
  • Means is provided for set- ing the elevation.direction.
  • the first one of the above-mentioned prior mounting structures is suited for mounting on house roofs only.
  • the mounting structure cannot be mounted on a vertical wall, a chimney or on an existing mast tube.
  • the second one of the above-mentioned mounting structures is mounted in the same way as conventional mast tubes and may thus be mounted, for example, on a house gable.
  • a drawback of this mounting structure is, however, that the elevation angle is determined by the mast tube bent at an angle and that tubes having different elevation angles accordingly in principle, must be manufactured for places lying at different latitudes.
  • the pLesent:.invention aims at providing a mounting structure of the kind described by way of introduction, which avoids the limitations of the prior mounting structures, is easy to install at buildings and building parts, such as gables, chimneys, mast tubes, fundaments etc. and which is adjustable in the azimuth and elevation directions, the lastmentioned adjustments taking place highly independently of each other.
  • buildings and building parts such as gables, chimneys, mast tubes, fundaments etc. and which is adjustable in the azimuth and elevation directions, the lastmentioned adjustments taking place highly independently of each other.
  • the adjustment members by means of which the adjustments are performed are self-maintaining, i.e. the set position is not altered, for example owint to a blast or owing to the installer leaving hold of the aerial or the aerial mounting structure with both hands and instead, for example, calibrating a signal strength-instrument by means of which the aerial setting is performed.
  • the entire installation and adjustment process will thereby be rapid, simple and precise.
  • FIG. 1 shows an element in the form of a parabolic aerial or antenna 1 having a microwave head 2.
  • the antenna is connected to the mounting structure by means of an annular holder 3.
  • the mounting structure is mounted on a substantially vertical mast tube 4.
  • the mounting structure includes an axle which in this embodiment of the invention is a sleeve 5 which is threaded on to the mast tube 4.
  • a shoulder not shown, for example a piece of tube, may be anchored to the mast 4 to support the sleeve on the mast tube until the sleeve has been locked to the mast tube 4 by means of locking members as described below.
  • FIG. 2 shows how a mounting structure which is mounted on a mast tube according to the invention is mounted on the roof of a house.
  • the mast tube 4 is fixedly mounted on a stand which is screwed on the roof.
  • the mast tube passes through the roof and is anchored to a roof truss.
  • the mast tube 4 passes through the roof and is anchored to a roof beam.
  • the mast tube is sealed in a conventional way to the roof covering by means of a roof collar (not shown).
  • the axle is in the form of a sleeve which is threaded on to the mast tube in accordance with FIG. 1.
  • FIG. 3 the mounting structure is shown fixed to a chimney by means of straps which are fastened around the chimney.
  • Each strap is provided with a conventional holder.
  • the axle of the mounting structure is here fixed to the holder by means of conventional U-bolts D. By loosening these U-bolts D the azimuth direction of the mounting structure may be roughly adjusted, whereupon the U - bolts _ are tightened.
  • the axle need not necessarily be a sleeve but may be, for example, a solid rod.
  • FIG. 4 is shown how the mounting structure may be fixed to a wall by means of conventional brackets and U-bolts. By loosening the U-bolts rough setting in the azimuth direction may be performed.
  • FIG. 1 shows the remaining main parts of the mounting structure according to the invention.
  • a beam 6 is fixedly attached to, for example welded to, a holder 7 which in turn is fixedly attached to, for example welded to, the sleeve 5.
  • the longitudinal axis of the beam is substantially at right angles to the longitudinal axis of the sleeve.
  • the sleeve 5 is located unsymmetrically along the beam to make room for the microwave head 2 (cf. FIG. 1).
  • the sleeve is preferably located symmetrically, i.e. at the centre of the beam 6.
  • the antenna is rough-adjusted in the azimuth direction.
  • the rough-adjustment takes place over a range of 0 to 360°.
  • the sleeve is locked at the rough-adjusted azimuth angle (which is counted in relation to a fixed direction, for example North) by means of two locking screws 8 and 9 placed at the top and at the foot, respectively, of the sleeve.
  • Each locking screw is threaded into a nut which is welded to the peripheral surface of the sleeve and which passes through an opening, not shown, in the wall of the sleeve, said opening being positioned opposite the nut.
  • the slab 10 thus depends from the beam 6 by means of a nut not shown and is rotatable in relation to the beam.
  • a nut 13 and 14, respectively, (FIG. 6) is- welded with the longitudinal axes of the nuts lying in the horizontal plane. The location of the nuts is such that imaginary line 15 coinciding with the longitudinal axes of the nuts cuts the longitudinal axis of the pivot pin 11, i.e. the centre of rotation of the azimuth angle fine-adjustment.
  • Each nut is intended to receive a threaded pivot pin 16.
  • the longitudinal axes of the pivot pins thus lie in the interface between the slab 10 and the beam 6.
  • Two opposite angle brackets 17 (FIG. 1 and FIG. 9) are fixedly connected with, for example screwed into, the holder and are rotatably mounted on the pivot pins 16, whereby the parabolic aerial accordingly is rotatably connected with the mounting structure and can rotate around the axle 15 for adjusting the elevation angle and, as above mentioned, around the substantially vertical pivot pin 11 for fine-adjustment of the azimuth angle.
  • the relative rotation between the slab and the beam is brought about with an azimuth angle fine-adjustment member 18 in the form of an adjustment screw 19 (cf.. FIGS.
  • the pivot pin 21 is articulately mounted in an extended part 22 of the beam 6 and the adjustment screw is threaded into an opening, not shown, which extends radially transversely through the pivot pin 21.
  • the front point of the adjustment screw 19 has no thread but is smooth and extends through a likewise radial through opening not shown in the pivot pin 20.
  • the front point is rotatable in this-opening but is anchored against axial movement in relation to the pivot pin 20 by a ball joint not shown or by lock washers, cotter pins or the like (not shown) positioned at both sides of said ball joint.
  • the pivot pin 20 is rotatably mounted in a boring in a tongue 23which projects from the nut 13.
  • a flat adjustment knob 24 is provided at the opposite end of the adjustment screw. It is seen from the above that the azimuth angle fine-adjustment member is self-locking (irreversible).
  • a stretching screw articulately mounted at both ends may, for example, be used.
  • a rotatable cam disk for example an eccentric, may be used for realizing this movement, the beam and the slab in the lastmentioned case being prestressed against each other, for example by means of a helical spring.
  • each bolt joint includes a bolt 27 and a locking nut 28.
  • the nuts are loosened and after terminating the fine-ad:justment they are tightened, the top surface of the slab 10 being locked against the bottom surface of the beam 6.
  • An elevation angle adjustment member 29 extends between the aerial 1 and the sleeve 5 and is articulately connected with each of these units; the connection being realized with the sleeve by means of a pivot pin 30 and with the aerial by means of a ball joint 30.
  • the adjustment member is made in the form of an adjustment screw 32 which is threaded through the pivot pin.30 which is rotatable in a bearing sleeve 33.
  • This bearing sleeve 33 is rigidly connected, for example welded, to the sleeve 5.
  • the pivot pin 30, shown in detail in FIG. 11, consists of a threaded pin having a thickened head 34.
  • a boring 35 passes transversely through the thickened head 34, and in this boring the adjustment screw 32 is threaded.
  • the boring 35 elongated through openings 36 are provided in the peripheral surface of the bearing sleeve 33 so that the adjustment screw is turnable to some extent around the longitudinal axis of the bearing sleeve.
  • the pivot pin 30 may be locked against rotation in relation to the bearing sleeve 33 by means of a nut 37 which is threaded on to the .end of the pivot pin 30.
  • the ball joint 31 (FIG. 10) includes a ball 38 which is fixedly connected, for example screwed, in the front tip of the adjustment screw 32.
  • the ball 38 is fastened under pressure between two plates 39, 40, each provided with conical or spherical depressions in which the ball is received.
  • the plate 40 which may be an integrated part of the parabolic aerial is fixed to the holder 3 ; for example, by screwing.
  • the plate 40 may also be an integrated part of the holder 3.
  • a locking screw 41 which passes through-the plate 39 with a clearance and which is threaded into the lower plate 40 only, the position of the ball 38 may be locked between the plates 39, 40.
  • the nut 37 In adjusting the elevation angle the nut 37 is first loosened and then the ball joint is loosened by means of the locking screw.: 41.
  • the adjustment screw 32 is thereupon rotated by turning a handle 42 fixed at the end of the screw until a maximum of signal strength is obtained from the antenna.
  • the ball joint 31 is locked and finally the pivot pin is locked with the nut 37.
  • a locking member for example a cotter, bolt-joints etc.
  • FIGS. 12 and 13 show the path of an imaginary central ray from the aerial covers in space from a point X, which corresponds to the point at which one ends when the antenna has been rough-adjusted in the azimuth and elevation directions, to a point 0 which corresponds to the fixed point in space towards which the aerial is to be directed.
  • the azimuth angle fine-adjustment member in its starting position has the beam 6 arranged parallel to the slab 10, i.e. the turning angle between these units is zero.
  • the imaginary central ray follows the parabolic path'in space indicated by dashed lines.
  • an azimuth angle fine-adjustment from the point X is first carried out until the antenna points straight under the fixed point 0 (which manifests itself by a maximum of signal strength measured on a field strength meter), the central ray following the path indicated by the arrow 43. Thereupon the elevation angle adjustment is carried out from the head of the arrow 43 up towards the fixed point 0, the central ray following the path indicated by the arrow 44 (when the maximum of signal strength is obtained, the point 0 has been found). If now the axle or sleeve 5 should not be absolutely vertically disposed but be inclined an angle do to the vertical, the central ray, at the lastmentioned setting, would move along the dashed line in FIG. 12, said dashed line likewise including the angle CC with the vertical (indicated by a dot and dash line).

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)
  • Medicinal Preparation (AREA)
  • Massaging Devices (AREA)
  • Materials For Medical Uses (AREA)
EP81850066A 1980-04-15 1981-04-14 Antennenhalterung Withdrawn EP0038788A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8002838 1980-04-15
SE8002838A SE429374B (sv) 1980-04-15 1980-04-15 Feste

Publications (1)

Publication Number Publication Date
EP0038788A1 true EP0038788A1 (de) 1981-10-28

Family

ID=20340747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81850066A Withdrawn EP0038788A1 (de) 1980-04-15 1981-04-14 Antennenhalterung

Country Status (5)

Country Link
EP (1) EP0038788A1 (de)
DK (1) DK170981A (de)
FI (1) FI811162L (de)
NO (1) NO811307L (de)
SE (1) SE429374B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536591A1 (fr) * 1982-11-23 1984-05-25 Thomson Brandt Support d'antenne de telecommunications par satellite geostationnaire et ensemble forme par un tel support et son antenne
FR2595510A1 (fr) * 1986-03-04 1987-09-11 Const Centre Atel Support d'antenne de reception
EP0291268A2 (de) * 1987-05-11 1988-11-17 Varitrack Dbs Limited Halterung für Satellitenempfangsantenne
GB2209095A (en) * 1987-08-25 1989-04-26 Varitrack D B S Limited Method of mounting a dished telecommunications receiver
US4860021A (en) * 1985-06-28 1989-08-22 Hitachi, Ltd. Parabolic antenna
DE3812164A1 (de) * 1988-04-12 1989-10-26 Kathrein Werke Kg Satellitenantennen-traeger
AU632408B2 (en) * 1990-03-22 1992-12-24 E.R. Squibb & Sons, Inc. Trifluoromethyl mercaptan and mercaptoacyl derivatives and method of using same
GB2310542A (en) * 1996-02-26 1997-08-27 Fujitsu Ltd Mounting for antenna unit
WO1999041802A1 (en) * 1998-02-11 1999-08-19 Lucent Technologies Inc. Antenna fixing device provided with an alignment adjustment system
WO2000017955A1 (en) * 1998-09-22 2000-03-30 Eurocom Satellite Antennas As Mounting bracket
FR2793607A1 (fr) * 1999-05-11 2000-11-17 Cahors App Elec Dispositif de montage et d'orientation en azimut/elevation d'une antenne
WO2001011714A1 (de) * 1999-08-09 2001-02-15 Rainer Hartmann Verfahren zur justage von parabolantennen
EP1401049A1 (de) * 2002-09-20 2004-03-24 Thomson Licensing S.A. Halterung für eine Satellitenantenne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI981234A (fi) * 1998-06-01 1999-12-02 Nokia Networks Oy Suuntauslaite

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767240A (en) * 1955-07-12 1956-10-16 Cecil A Webster Roof bracket for television antennas
DE1956172A1 (de) * 1969-11-07 1971-05-13 Siemens Ag Vorrichtung zur Befestigung einer Antennenanordnung
US4126865A (en) * 1975-11-11 1978-11-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Satellite tracking dish antenna
JPS5437661A (en) * 1977-08-31 1979-03-20 Matsushita Electric Ind Co Ltd Antenna unit
US4204214A (en) * 1978-11-06 1980-05-20 Datron Systems, Inc. Slewing and tracking mechanism for dish structure
JPS5592001A (en) * 1978-12-30 1980-07-12 Matsushita Electric Ind Co Ltd Antenna angle adjustment device
EP0026001A1 (de) * 1979-09-25 1981-04-01 Siemens Aktiengesellschaft Empfangsantenne für Satelliten-Direktempfang

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767240A (en) * 1955-07-12 1956-10-16 Cecil A Webster Roof bracket for television antennas
DE1956172A1 (de) * 1969-11-07 1971-05-13 Siemens Ag Vorrichtung zur Befestigung einer Antennenanordnung
US4126865A (en) * 1975-11-11 1978-11-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Satellite tracking dish antenna
JPS5437661A (en) * 1977-08-31 1979-03-20 Matsushita Electric Ind Co Ltd Antenna unit
US4204214A (en) * 1978-11-06 1980-05-20 Datron Systems, Inc. Slewing and tracking mechanism for dish structure
JPS5592001A (en) * 1978-12-30 1980-07-12 Matsushita Electric Ind Co Ltd Antenna angle adjustment device
EP0026001A1 (de) * 1979-09-25 1981-04-01 Siemens Aktiengesellschaft Empfangsantenne für Satelliten-Direktempfang

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patents Abstracts of Japan Vol. 3, No. 60, 23 May 1979 page 26E112 & JP - A - 54 -037661 *
Patents Abstracts of Japan Vol. 4, No. 141, 4 October 1980 page 41E28 & JP - A- 55 - 092001 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536591A1 (fr) * 1982-11-23 1984-05-25 Thomson Brandt Support d'antenne de telecommunications par satellite geostationnaire et ensemble forme par un tel support et son antenne
EP0112205A1 (de) * 1982-11-23 1984-06-27 Thomson-Brandt Halterung für eine Fernsehantenne für Satellitenempfang und Einheit bestehend aus einer solchen Halterung und ihrer Antenne
US4860021A (en) * 1985-06-28 1989-08-22 Hitachi, Ltd. Parabolic antenna
FR2595510A1 (fr) * 1986-03-04 1987-09-11 Const Centre Atel Support d'antenne de reception
EP0291268A2 (de) * 1987-05-11 1988-11-17 Varitrack Dbs Limited Halterung für Satellitenempfangsantenne
GB2205446A (en) * 1987-05-11 1988-12-07 Varitrack Dbs Limited Mountings for telecommunications dishes
EP0291268A3 (de) * 1987-05-11 1989-10-18 Varitrack Dbs Limited Halterung für Satellitenempfangsantenne
GB2205446B (en) * 1987-05-11 1991-10-30 Varitrack Dbs Limited Mountings for telecommunications dishes
GB2209095A (en) * 1987-08-25 1989-04-26 Varitrack D B S Limited Method of mounting a dished telecommunications receiver
DE3812164A1 (de) * 1988-04-12 1989-10-26 Kathrein Werke Kg Satellitenantennen-traeger
AU632408B2 (en) * 1990-03-22 1992-12-24 E.R. Squibb & Sons, Inc. Trifluoromethyl mercaptan and mercaptoacyl derivatives and method of using same
GB2310542A (en) * 1996-02-26 1997-08-27 Fujitsu Ltd Mounting for antenna unit
US5926151A (en) * 1996-02-26 1999-07-20 Fujitsu Limited Antenna unit having integral radio transmitter-receiver and fixed to a base affixable to a support strut
GB2310542B (en) * 1996-02-26 2000-10-11 Fujitsu Ltd Mounting for antenna unit
CN1072848C (zh) * 1996-02-26 2001-10-10 富士通株式会社 天线组件
WO1999041802A1 (en) * 1998-02-11 1999-08-19 Lucent Technologies Inc. Antenna fixing device provided with an alignment adjustment system
WO2000017955A1 (en) * 1998-09-22 2000-03-30 Eurocom Satellite Antennas As Mounting bracket
FR2793607A1 (fr) * 1999-05-11 2000-11-17 Cahors App Elec Dispositif de montage et d'orientation en azimut/elevation d'une antenne
WO2001011714A1 (de) * 1999-08-09 2001-02-15 Rainer Hartmann Verfahren zur justage von parabolantennen
US6639568B1 (en) 1999-08-09 2003-10-28 Rainer Hartmann Method for adjusting parabolic antennae
EP1401049A1 (de) * 2002-09-20 2004-03-24 Thomson Licensing S.A. Halterung für eine Satellitenantenne
US6932307B2 (en) 2002-09-20 2005-08-23 Thomson Licensing S.A. Satellite antenna holder

Also Published As

Publication number Publication date
NO811307L (no) 1981-10-16
SE429374B (sv) 1983-08-29
DK170981A (da) 1981-10-16
SE8002838L (sv) 1981-10-16
FI811162L (fi) 1981-10-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19821004

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Inventor name: BAECKMAN, PER-OLOF