EP1585186A2 - Support d'antenne pivotant - Google Patents

Support d'antenne pivotant Download PDF

Info

Publication number: EP1585186A2
Authority: EP; European Patent Office
Prior art keywords: fitting; antenna; mast; fittings; antenna beam
Prior art date: 2004-04-08
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.): Granted

Application number

EP05102745A

Other languages

German (de)

English (en)

Other versions

EP1585186A3 (fr

EP1585186B1 (fr

Inventor

Bengt Martensson

Jan Gustafsson

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.)

Bema Martensson & Co Hb

Original Assignee

Bema Martensson & Co Hb

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.)

2004-04-08

Filing date

2005-04-07

Publication date

2005-10-12

2005-04-07 Application filed by Bema Martensson & Co Hb filed Critical Bema Martensson & Co Hb

2005-10-12 Publication of EP1585186A2 publication Critical patent/EP1585186A2/fr

2005-10-26 Publication of EP1585186A3 publication Critical patent/EP1585186A3/fr

2007-10-10 Application granted granted Critical

2007-10-10 Publication of EP1585186B1 publication Critical patent/EP1585186B1/fr

Status Not-in-force legal-status Critical Current

2025-04-07 Anticipated expiration legal-status Critical

Links

238000007373 indentation Methods 0.000 claims description 10
230000005540 biological transmission Effects 0.000 description 2
238000010276 construction Methods 0.000 description 2
230000005484 gravity Effects 0.000 description 2
230000033001 locomotion Effects 0.000 description 2
230000003028 elevating effect Effects 0.000 description 1
230000000644 propagated effect Effects 0.000 description 1

Images

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
- H01Q1/1235—Collapsible supports; Means for erecting a rigid antenna
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk

Definitions

the present invention relates to antenna devices, more particularly antenna brackets and most particularly antenna brackets for television antennas for use at/on vehicles such as caravans.
Such antennas for use with caravans are known in the art.
Such antennas can be of the dipole type having directional elements.
Such an antenna is directed towards the transmitter by means of a rotateable antenna mast, which can be rotated manually from inside the caravan by means of a roof entrance in the roof of the caravan.
the roof entrance also allows the mast to be shifted upwards to obtain better reception as well as downwards to obtain reduced influence of the wind and reduced risk of damage during ride, particularly when passing below bridges and viaducts with reduced free passage height.
lattice antennas also called vertical net antennas
dipole antennas and omni-directional antennas
a drawback with lattice antennas has hitherto been that the they extend principally vertically, which has exposed them to the wind and thereby they have become prone to damage on vehicles, such as caravans.
the object of the present invention is therefore to provide a device that reduces or totally eliminates the above-mentioned drawbacks with lattice antennas for use with vehicles.
a further object of the invention is to provide a simple, easy to handle and resource saving device.
an antenna device which is provided with a hinge joint between a mast head and an antenna, which allows the antenna to be pivoted between a horizontal position, mainly perpendicularly to the mast and a vertical position, principally parallel to the mast, and which further comprises means to automatically, having its origin in the upward motion of the mast, pivoting the antenna towards the vertical position, when the mast is raised, and means for automatically, having its origin in the mast movement downwards, pivoting the antenna towards to the horizontal position, when the mast is lowered.
a set of fittings comprising a runner fitting, capable of running along a vertically adjustable mast of the kind often found in caravans.
a stay which in its other end is jointly attached to the antennas main or central beam, in the following called antenna beam.
An antenna beam fitting is attached to the antenna beam at a certain distance from the position where the stay is jointly attached to said beam.
the antenna beam fitting is jointly attached to a mast head fitting, which is mounted at the top of said mast, forming a hinge joint.
the function of the stay and the runner fittings is in principle to relay pressure forces in order to pivot the antenna to a horizontal position, when the mast is lowered.
Fig. 1 shows an antenna bracket from the side according to a preferred embodiment of the present invention.
An antenna beam fitting 1 is fixedly attached to an antenna beam 8.
the antenna beam fitting 1 is close to its first end, by a joint 10, jointly attached to a mast head fitting 2.
the mast head fitting 2 is fixedly attached to the top of the mast 4, possibly by means of a mast head adjustment fitting 3.
a runner fitting 5 is mounted to the mast 4 in such a way that this fitting 5 can run freely along the mast 4, when this is elevated and lowered and rotated.
the runner fitting 5 is preferably angularly formed with a hole 43 insignificantly bigger than the diameter of the mast 4.
a first end of a stay 6 is jointly attached to a stay fitting 7, which stay fitting 7 is fixedly attached to the antenna beam 8.
the stay fitting 7 is attached to the antenna beam 8 having a suitable distance to the antenna beam fitting 1 to allow the function below to be accomplished.
the mast 4 is elevated.
the antenna beam fitting 1 is so mounted to the antenna beam 8 that the centre of gravity 12 of the antenna will be positioned on the stay fitting side of the antenna beam in relation to the joint 10.
This position of the centre of gravity 12 entails that, when the mast 4 is elevated, the antenna beam 8 and the associated antenna elements, not shown, will be angularly rotated to a more vertical position, as the mast is elevated. If the mast is further raised after that a vertical position has been taken by the antenna beam 8, the whole antenna will be elevated to a higher position.
the mast 4 is lowered.
the runner fitting will then come into contact with the roof entrance 14 (in the roof of the vehicle), which will cause a pressure force in the stay 6 to arise, which is propagated to the antenna beam 8 through the stay fitting 7, which fitting in turn interfere with the antenna beam 8 to pivot around the joint 10 to a gradually more horizontal position.
the design of the antenna beam fitting 1 and the mast head fitting entails that a end position is reached, se further below.
Fig. 2 shows the antenna beam fitting 1 from the side and in profile.
the fitting 1 is preferably devised having with an H-formed profile forming two elongated indentations 21, 22.
the upper indentation 21 is intended to house the antenna beam 8.
the lower indentation 22 is intended to house the mast head fitting 2, when the antenna is positioned in the folded, i.e. the horizontal position.
the advantage having the mast head fitting 2 positioned in the indentation 22 is that the antenna bracket including the antenna gets a stable and safe construction, having large resistance against the speed wind and such, which would otherwise rotate and damage the construction.
the antenna beam fitting is further provided with a bore 20 for a joint bolt (not shown).
Fig. 3 shows the mast head fitting 2 from the side and in cross section.
the fitting 2 has a rectangular cross section and can be designed within tapering in its end facing away from the joint 36.
the fitting 2 is provided with a bore for the joint bolt described above, which also passes through the bores 20.
Mounting holes 31, 32 are provided to attach to the mast or the mast head adjustment fitting 3.
Fig. 4 shows the runner fitting 5, which is provided with a hole 43, through which hole the antenna mast 4, preferably of a circular cross section, can run. Further, the runner fitting 5 is provided with a notch 44 at its periphery to articulate towards the stay 6. Holes 41 are provided next to the notch 44 for a joint bolt (not shown).
Fig. 5 shows the stay fitting 7 from the side and in cross section.
the stay fitting 7 is provided with two notches, 51, 52; an upper notch 51 adapted to be attached to the antenna beam 8 by means of a bolt (not shown) through the holes 53 and through the antenna beam 8, and a low notch 52, which is intended to jointly attach the stay fitting 7 to the end close to the antenna beam of the stay 6.
the antenna bracket is provided with spring means, mounted to divide the antenna beam fitting and the mast head fitting in the initial phase of an unfolding from the horizontal position.
Said spring means can for example be a pressure spring, positioned between said fittings or a coil spring, positioned around the joint bolt in the joint 10 with a first spring arm bearing against the antenna beam fitting 1 and a second spring arm bearing against the mast head fitting 2.
the running part corresponding to the part 5 has been mounted in a rail (not shown) on the antenna beam, while the fixed part of the stay is mounted at the mast, preferably close to the roof entrance 14.

Landscapes

Engineering & Computer Science (AREA)
Remote Sensing (AREA)
Support Of Aerials (AREA)
Details Of Aerials (AREA)

EP05102745A 2004-04-08 2005-04-07 Support d'antenne pivotant Not-in-force EP1585186B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE0400927A SE525638C2 (sv)	2004-04-08	2004-04-08	Antennfäste
SE4009270		2004-04-08

Publications (3)

Publication Number	Publication Date
EP1585186A2 true EP1585186A2 (fr)	2005-10-12
EP1585186A3 EP1585186A3 (fr)	2005-10-26
EP1585186B1 EP1585186B1 (fr)	2007-10-10

Family

ID=32173701

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP05102745A Not-in-force EP1585186B1 (fr)	2004-04-08	2005-04-07	Support d'antenne pivotant

Country Status (4)

Country	Link
EP (1)	EP1585186B1 (fr)
AT (1)	ATE375606T1 (fr)
DE (1)	DE602005002775D1 (fr)
SE (1)	SE525638C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN105098313B (zh) *	2015-08-25	2017-09-01	长安大学	一种隧道地质超前预报雷达天线自适应调位装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3715024A1 (de) *	1987-05-06	1988-11-17	Kathrein Werke Kg	Einstellvorrichtung fuer eine antenne
DE29519752U1 (de) *	1995-09-04	1996-02-22	Media Tech Vertriebs GmbH, 78647 Trossingen	Antennenvorrichtung
US5929817A (en) *	1993-03-07	1999-07-27	Maxview Limited	Antenna mounts
EP1028482A2 (fr) *	1999-02-11	2000-08-16	Patria Vehicles Oy	Système de mât téléscopique

2004
- 2004-04-08 SE SE0400927A patent/SE525638C2/sv unknown
2005
- 2005-04-07 DE DE602005002775T patent/DE602005002775D1/de active Active
- 2005-04-07 AT AT05102745T patent/ATE375606T1/de not_active IP Right Cessation
- 2005-04-07 EP EP05102745A patent/EP1585186B1/fr not_active Not-in-force

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3715024A1 (de) *	1987-05-06	1988-11-17	Kathrein Werke Kg	Einstellvorrichtung fuer eine antenne
US5929817A (en) *	1993-03-07	1999-07-27	Maxview Limited	Antenna mounts
DE29519752U1 (de) *	1995-09-04	1996-02-22	Media Tech Vertriebs GmbH, 78647 Trossingen	Antennenvorrichtung
EP1028482A2 (fr) *	1999-02-11	2000-08-16	Patria Vehicles Oy	Système de mât téléscopique

Also Published As

Publication number	Publication date
SE0400927L (sv)	2005-03-22
SE0400927D0 (sv)	2004-04-08
EP1585186A3 (fr)	2005-10-26
EP1585186B1 (fr)	2007-10-10
SE525638C2 (sv)	2005-03-22
ATE375606T1 (de)	2007-10-15
DE602005002775D1 (de)	2007-11-22

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