EP0275379B1 - Telescopic antenna extending by hand - Google Patents
Telescopic antenna extending by hand Download PDFInfo
- Publication number
- EP0275379B1 EP0275379B1 EP87115939A EP87115939A EP0275379B1 EP 0275379 B1 EP0275379 B1 EP 0275379B1 EP 87115939 A EP87115939 A EP 87115939A EP 87115939 A EP87115939 A EP 87115939A EP 0275379 B1 EP0275379 B1 EP 0275379B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- telescopic
- core
- aerial
- antenna
- guide tube
- 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
Links
- 239000000463 material Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 239000011368 organic material Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 description 5
- 229910000639 Spring steel Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000036316 preload 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
- H01Q1/27—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S343/00—Communications: radio wave antennas
- Y10S343/01—Communications: radio wave antennas with vibration damper or wind catcher
Definitions
- the invention relates to a telescopic antenna which can be pulled out by hand for a motor vehicle according to the preamble of claim 1.
- Such telescopic antennas belong to the prior art. Simple and therefore inexpensive models can be pulled out by hand; they consist of several telescopic tubes that are fitted into one another and, apart from the innermost part, are designed as sleeves when pulled out. When pushed together, the sleeves are received by a guide tube provided under the body panel. Such antennas are generally known.
- motor-driven telescopic antennas in which a heavy electric motor is attached to the lower area, which, for example, moves a nylon wire up and down and can thereby push the antenna in and out using an electric motor.
- the acoustic behavior of the telescopic antennas mentioned in the preamble is problematic. They tend to produce wind noise that penetrate inside the vehicle.
- the antennas equipped with the electric motor are less susceptible to such wind noises due to their heavy electric motor located in the lower region.
- the object of the invention is to provide a generic telescopic antenna which can be pulled out by hand and whose acoustic behavior is improved compared to the antennas known in the prior art.
- the telescopic antenna which can be pulled out by hand contains a core, for example a band, a coated or uncoated wire or the like, which, when the antenna is extended, rests on the inner walls of the individual telescopic tubes and extends from the top antenna telescope section to extends to the lowest telescopic section, preferably to the lower end of the guide tube.
- a core for example a band, a coated or uncoated wire or the like, which, when the antenna is extended, rests on the inner walls of the individual telescopic tubes and extends from the top antenna telescope section to extends to the lowest telescopic section, preferably to the lower end of the guide tube.
- DE-A 894 578 describes a vehicle antenna in which inserts between the inner tube and outer tube are provided, which also to prevent rattling noises.
- US-A 2,179,472 and US-A 2,179,415 also describe inserts which are intended to brace the individual telescopic tubes against one another in order to overcome the play necessary for pulling in and taking out, so that mechanical metallic rattling of the telescopic tubes with one another is avoided.
- the real problem with the formation of noise by antennas does not consist in the rattling of the segments with one another, and also not in the detachment of eddies and turbulence, which should consequently be avoided, but that the detachment of eddies and turbulence generated natural vibrations of the antenna are transmitted to the body panel via the antenna base and are amplified there with certain training and are thus conducted as structure-borne noise into the vehicle interior.
- the whistling and whirring in the wind is due to such causes.
- the material selection for the soul is of secondary importance, it can be a plastic strap, a plastic-covered metal strap or the like. It is advantageous if the material has the highest possible internal damping.
- the soul can be designed in a spiral.
- the core is provided on the outside with a material that reduces friction, for example with polytetrafluoroethylene.
- FIGS. 1 and 2 The telescopic antennas shown in FIGS. 1 and 2 are not shown to scale, but rather widened to show the principle of the invention more clearly.
- the telescopic antenna 10 is embedded in a body panel 12 and held by means of a ring 14. Vibrations of the antenna 10 are introduced into the body panel 12 via the ring 14 and carried into the interior of the vehicle as structure-borne noise.
- the telescopic antenna 10 consists of an upper, usually solid rod 16, on the three other telescopic tubes in the drawing Connect 18, 20 and 22.
- guide pieces such as are provided in concrete versions, are not mentioned in the description and are not shown in the drawing.
- a guide tube 30 surrounds the sunken and pushed telescopic antenna and is attached below the body panel 12.
- a core 24 is fixed at point 26, which is fixed with its other end 28 in the lower section of the guide tube 30.
- This core 24 extends loosely through the interior of the antenna and lies in several areas on the inner walls of the telescopic tubes 18, 20 and 22 and on the inner wall of the guide tube 30.
- a spring preload is not desirable, the damping effect of the soul is better if it has no natural vibration behavior.
- the core 24 can consist, for example, of stripped metal wire which, with a sufficiently long length, also contacts the inner walls of the telescopic tubes 18, 20 and 22 when the antenna 10 is extended, in particular if the metal wire is wound in a spiral.
- a friction reducing coating or friction reducing material is advantageous for mechanical reasons. This has nothing to do with the acoustically desired properties. that in continuous operation, even after several years, it must still be ensured that the antenna can be extended and retracted without difficulty.
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Description
Die Erfindung betrifft eine von Hand ausziehbare Teleskopantenne für ein Kraftfahrzeug gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a telescopic antenna which can be pulled out by hand for a motor vehicle according to the preamble of claim 1.
Derartige Teleskopantennen gehören zum Stand der Technik. Einfache und daher preiswerte Modelle sind von Hand ausziehbar, sie bestehen aus mehreren ineinander gefügten Teleskoprohren, die, abgesehen vom innersten, im ausgezogenen Zustand obersten Stück als Hülsen ausgebildet sind. Im zusammengeschobenen Zustand werden die Hülsen von einem unter dem Karosserieblech vorgesehenen Führungsrohr aufgenommen. Derartige Antennen sind allgemein bekannt.Such telescopic antennas belong to the prior art. Simple and therefore inexpensive models can be pulled out by hand; they consist of several telescopic tubes that are fitted into one another and, apart from the innermost part, are designed as sleeves when pulled out. When pushed together, the sleeves are received by a guide tube provided under the body panel. Such antennas are generally known.
Weiterhin existieren motorgetriebene Teleskopantennen, bei denen am unteren Bereich ein schwerer Elektromotor angebracht ist, der beispielsweise einen Nylondraht auf- und abbewegt und dadurch die Antenne elektromotorisch ein- und ausschieben kann.There are also motor-driven telescopic antennas, in which a heavy electric motor is attached to the lower area, which, for example, moves a nylon wire up and down and can thereby push the antenna in and out using an electric motor.
Im Fahrbetrieb ist das akustische Verhalten der im Oberbegriff genannten, von Hand ausziehbaren Teleskopantennen problematisch. Sie neigen dazu, Windgeräusche zu produzieren, die in das Innere des Fahrzeuges eindringen.When driving, the acoustic behavior of the telescopic antennas mentioned in the preamble is problematic. They tend to produce wind noise that penetrate inside the vehicle.
Gegen derartige Windgeräusche sind die mit dem Elektromotor ausgerüsteten Antennen aufgrund ihres im unteren Bereich befindlichen schweren Elektromotores weniger anfällig.The antennas equipped with the electric motor are less susceptible to such wind noises due to their heavy electric motor located in the lower region.
Aufgabe der Erfindung ist es, eine gattungsgemäße, von Hand ausziehbare Teleskopantenne zu schaffen, die in ihrem akustischen Verhalten gegenüber den im Stand der Technik bekannten Antennen verbessert ist.The object of the invention is to provide a generic telescopic antenna which can be pulled out by hand and whose acoustic behavior is improved compared to the antennas known in the prior art.
Die Aufgabe wird gelöst durch den Hauptanspruch.The task is solved by the main claim.
Erfindungsgemäß ist vorgesehen, daß die von Hand ausziehbare Teleskopantenne in ihrem Inneren eine Seele, beispielsweise ein Band, einen beschichteten oder unbeschichteten Draht oder ähnliches enthält, der sich im ausgezogenen Zustand der Antenne an die Innenwandungen der einzelnen Teleskoprohre anlehnt und dabei sich vom obersten Antennenteleskopabschnitt bis zum untersten Teleskopabschnitt, vorzugsweise bis zum unteren Ende des Führungsrohres, erstreckt. Eine derartige Seele führt zu einer starken Geräuschverminderung, wie weiter unten im einzelnen diskutiert.According to the invention, it is provided that the telescopic antenna which can be pulled out by hand contains a core, for example a band, a coated or uncoated wire or the like, which, when the antenna is extended, rests on the inner walls of the individual telescopic tubes and extends from the top antenna telescope section to extends to the lowest telescopic section, preferably to the lower end of the guide tube. Such a soul leads to a strong reduction in noise, as discussed in detail below.
Aus der DE-A-28 46 344 ist eine Antenne bekannt, der auch die Aufgabe zugrundeliegt, die Windgeräusche zu dämpfen. Erreicht wird dies dort jedoch durch eine besondere Formgebung des Außenumfangs der Antenne, da bislang davon ausgegangen wurde, daß insbesondere durch die Ablösung von Wirbeln und Turbulenzen die schwirrenden und pfeifenden Geräusche hervorgerufen werden. Die Tatsache, daß Motorantennen weniger problematisch hinsichtlich der Windgeräusche sind, wird darauf zurückgeführt, daß das schwere Gegengewicht des Motors einen besseren Massenausgleich hervorruft und die Antenne dementsprechend nicht zu Schwingungen neigt.From DE-A-28 46 344 an antenna is known, which is also based on the task of damping the wind noise. However, this is achieved there by a special shape of the outer circumference of the antenna, since it has previously been assumed that the whirring and whistling noises are caused in particular by the detachment of eddies and turbulence. The fact that motor antennas are less problematic in terms of wind noise is attributed to the fact that the heavy counterweight of the motor produces a better mass balance and accordingly the antenna does not tend to vibrate.
Seelen im Inneren von Antennen sind prinzipiell bekannt. Aus der US-A 2,456,330 ist eine Seele im Innern bekannt, die als unter Vorspannung stehender Federstahl ausgeführt ist. Dieser Federstahl soll die einzelnen Teleskopsegmente gegeneinander verklemmen, um entsprechende Vibrationen und ein Klappern der Antenne zu vermeiden. Durch die vorgesehene Vorspannung jedoch machte dieser Federstahl durch Wind hervorgerufene Schwingungen mit und ist nicht in der Lage, diese zu dämpfen. Auch ist der Federstahl nicht einstückig durch die gesamte Teleskopantenne geführt.In principle, souls inside antennas are known. From US-A 2,456,330 a core is known which is designed as spring steel under tension. This spring steel is intended to clamp the individual telescope segments against one another in order to avoid corresponding vibrations and rattling of the antenna. However, due to the prestressing provided, this spring steel was able to withstand vibrations caused by wind and is not able to dampen them. The spring steel is not guided in one piece through the entire telescopic antenna.
Die DE-A 894 578 beschreibt eine Fahrzeugantenne, bei der Einlagen zwischen Innenrohr und Außenrohr vorgesehen sind, die ebenfalls der Verhütung klappernder Geräusche dienen.DE-A 894 578 describes a vehicle antenna in which inserts between the inner tube and outer tube are provided, which also to prevent rattling noises.
Die US-A 2,179,472 und die US-A 2,179,415 beschreiben ebenfalls Einlagen, die die einzelnen Teleskoprohre gegeneinander verspannen sollen, um das für das Ein- und Ausziehen notwendige Spiel zu überwinden, damit ein mechanisches metallenes Klappern der Teleskoprohre untereinander vermieden wird.US-A 2,179,472 and US-A 2,179,415 also describe inserts which are intended to brace the individual telescopic tubes against one another in order to overcome the play necessary for pulling in and taking out, so that mechanical metallic rattling of the telescopic tubes with one another is avoided.
Erfindungsgemäß jedoch wurde erkannt, daß das eigentliche Problem bei der Geräuschbildung durch Antennen nicht in dem Klappern der Segmente untereinander, und auch nicht in dem Ablösen von Wirbeln und Turbulenzen besteht, die demzufolge vermieden werden müßten, sondern daß die durch das Ablösen von Wirbeln und Turbulenzen erzeugten Eigenschwingungen der Antenne sich über den Antennenfuß auf das Karosserieblech übertragen und dort bei bestimmten Ausbildungen noch verstärkt werden und somit als Körperschall in das Fahrzeuginnere geleitet werden. Insbesondere das Pfeifen und Surren im Wind ist auf derartige Ursachen zurückzuführen.According to the invention, however, it was recognized that the real problem with the formation of noise by antennas does not consist in the rattling of the segments with one another, and also not in the detachment of eddies and turbulence, which should consequently be avoided, but that the detachment of eddies and turbulence generated natural vibrations of the antenna are transmitted to the body panel via the antenna base and are amplified there with certain training and are thus conducted as structure-borne noise into the vehicle interior. In particular, the whistling and whirring in the wind is due to such causes.
In Erkenntnis dieser Gegebenheiten wurde ein einfacher Weg gesucht, das Eigenschwingen der Antenne zu unterbinden oder zu verringern. Die im Anspruch vorgeschlagene Lösung macht sich die Tatsache zunutze, daß die lose in mehreren Bereichen der Teleskoprohre anliegende Seele zur Dämpfung der Schwingungen führt und somit in den Antennenfuß kein Körperschall eingeleitet wird.In recognition of these circumstances, a simple way was sought to prevent or reduce the self-oscillation of the antenna. The solution proposed in the claim takes advantage of the fact that the soul lying loosely in several areas of the telescopic tubes leads to damping of the vibrations and thus no structure-borne noise is introduced into the antenna base.
Für die Funktionsfähigkeit ist dabei die Materialauswahl für die Seele zweitrangig, es kann sich um ein Kunststoffband, ein mit Kunststoff überzogenes Metallband oder ähnliches handeln. Dabei ist es vorteilhaft, wenn das Material eine möglichst hohe innere Dämpfung aufweist.For the functionality, the material selection for the soul is of secondary importance, it can be a plastic strap, a plastic-covered metal strap or the like. It is advantageous if the material has the highest possible internal damping.
Bevorzugte Ausführungen sind in den Unteransprüchen beschrieben.Preferred embodiments are described in the subclaims.
Um im eingezogenen Zustand möglichst wenig Platz einzunehmen und im ausgefahrenen Zustand sich zuverlässig an mehreren Stellen an die Teleskopinnenwände anzulegen, kann die Seele spiralförmig ausgebildet werden.In order to take up as little space as possible in the retracted state and to reliably lie against the inner walls of the telescope at several points when extended, the soul can be designed in a spiral.
Um auch bei eingedrungender Feuchtigkeit und im Dauerbetrieb ein Verklemmen zuverlässig zu vermeiden, ist es vorteilhaft, wenn die Seele außen mit einem die Reibung herabsetzenden Material versehen ist, beispielsweise mit Polytetrafluoräthylen.In order to reliably avoid jamming even in the presence of moisture and in continuous operation, it is advantageous if the core is provided on the outside with a material that reduces friction, for example with polytetrafluoroethylene.
Im folgenden wird die Erfindung anhand der Fig. 1 und 2 erläutert, es zeigen
- Fig. 1
- die schematische Darstellung einer Teleskopantenne im ausgefahrenen Zustand, und
- Fig. 2
- die schemätische Darstellung eine Teleskopantenne im eingezogenen Zustand.
- Fig. 1
- the schematic representation of a telescopic antenna in the extended state, and
- Fig. 2
- the schematic representation of a telescopic antenna in the retracted state.
Die in den Fig. 1 und 2 dargestellten Teleskopantennen sind nicht maßstäblich, sondern stark verbreitert dargestellt, um das Prinzip der Erfindung deutlicher zu Tage treten zu lassen. Die aus dem Stand der Technik bekannte konstruktive Ausgestaltung der Führung der Teleskoprohre ineinander und der Zuordnung von Teleskoprohren und Führungsrohr sind aus Gründen der vereinfachten Darstellung beiseite gelassen.The telescopic antennas shown in FIGS. 1 and 2 are not shown to scale, but rather widened to show the principle of the invention more clearly. The constructive design of the guidance of the telescopic tubes into one another, which is known from the prior art, and the assignment of telescopic tubes and guide tube are left aside for reasons of the simplified illustration.
Die Teleskopantenne 10 ist in einem Karosserieblech 12 eingelassen und mit Hilfe eines Ringes 14 gehaltert. Schwingungen der Antenne 10 werden über den Ring 14 in das Karosserieblech 12 eingeleitet und als Körperschall ins Innere des Fahrzeuges weitergeführt.The
Die Teleskopantenne 10 besteht aus einem oberen, meist massiven Stab 16, an den sich in der Zeichnung drei weitere Teleskoprohre 18, 20 und 22 anschließen. Zur Vereinfachung sind Führungsstücke, wie sie in konkreten Ausführungen vorgesehen sind, im Rahmen der Beschreibung nicht erwähnt und in der Zeichnung nicht gezeigt. Ein Führungsrohr 30 umgibt die versenkte und zusammengeschobene Teleskopantenne und ist unterhalb des Karosseriebleches 12 angebracht.The
Am unteren Ende des massiven oberen Stückes 16 ist im Punkt 26 eine Seele 24 befestigt, die mit ihrem anderen Ende 28 im unteren Abschnitt des Führungsrohres 30 fixiert ist.At the lower end of the solid
Diese Seele 24 zieht sich lose durch das Innere der Antenne und liegt in mehreren Bereichen an den Innenwänden der Teleskoprohre 18, 20 und 22 sowie an der Innenwand des Führungsrohres 30 an. Eine Federvorspannung ist dabei nicht erwünscht, die Dämpfungswirkung der Seele ist besser, wenn sie kein Eigenschwingverhalten besitzt.This
Die Seele 24 kann beispielsweise aus abisoliertem Metalldraht bestehen, der sich bei ausreichend bemessener Länge auch im ausgezogenen Zustand der Antenne 10 an die Innenwände der Teleskoprohre 18, 20 und 22 anlegt, insbesondere, wenn der Metalldraht spiralförmig aufgewickelt ist.The
Es sind verschiedene andere Materialien ebenfalls denkbar, beispielsweise ein reines Kunststoffband oder eine Kunststoffschnur, Kunststoffspiralen oder ähnliches, solange hinreichende Dämpfungseigenschaften gegeben sind. Die Seele kann im ausgezogenen Zustand der Antenne 10 durchaus etwas unter Spannung stehen, wichtig ist nur, daß sie in mehreren Stellen in Anlage an die Teleskoprohre gelangt.Various other materials are also conceivable, for example a pure plastic band or a plastic cord, plastic spirals or the like, as long as there are sufficient damping properties. The soul can be under tension when the
Ein die Reibung vermindernder Überzug oder ein die Reibung herabsetzendes Material ist aus mechanischen Gründen vorteilhaft. Dies hat mit den akustisch gewünschten Eigenschaften nichts zu tun, jedoch ist bei der Auslegung der Seele 24 auch zu berücksichtigen,
daß im Dauerbetrieb auch nach mehreren Jahren immer noch sichergestellt bleiben muß, daß die Antenne ohne Schwierigkeiten ein-und ausfahrbar ist.A friction reducing coating or friction reducing material is advantageous for mechanical reasons. This has nothing to do with the acoustically desired properties.
that in continuous operation, even after several years, it must still be ensured that the antenna can be extended and retracted without difficulty.
Claims (7)
- Manually extensible telescopic aerial (10) for a motor vehicle, with an upper aerial rod (16), a plurality of telescopic tubes (18 to 22), and a lower guide tube (30), and with a core (24) which accompanies the telescoping and extending movements and which is arranged in the interior of the hollow telescopic tubes (18 to 22) and guide tube (30), characterised in that the core (24) is disposed in one piece from the upper aerial rod (16) to the lower guide tube (30), and in the extended state of the telescopic aerial (10) the core (24) abuts freely at a plurality of regions of the telescopic tubes (18 to 22).
- Telescopic aerial according to claim 1, characterised in that the core (24) is secured at one of its ends (26) to the lower end of the upper aerial rod, and is fixed at its other end in the lower region of the guide tube (30).
- Telescopic aerial according to claim 1 or 2, characterised in that the core follows a spiral course.
- Telescopic aerial according to one of the preceding claims, characterised in that the core is made of metal covered with organic material.
- Telescopic aerial according to one of claims 1 to 3, characterised in that the core consists of a band or flexible tube of synthetic plastic material.
- Telescopic aerial according to one of the preceding claims, characterised in that the core is provided externally with a material which reduces friction.
- Telescopic aerial according to claim 6, characterised in that the core comprises externally a coating of polytetrafluoroethylene.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3641530 | 1986-12-05 | ||
| DE3641530 | 1986-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0275379A1 EP0275379A1 (en) | 1988-07-27 |
| EP0275379B1 true EP0275379B1 (en) | 1991-03-13 |
Family
ID=6315509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87115939A Expired - Lifetime EP0275379B1 (en) | 1986-12-05 | 1987-10-30 | Telescopic antenna extending by hand |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4920354A (en) |
| EP (1) | EP0275379B1 (en) |
| JP (1) | JPS63152202A (en) |
| DE (1) | DE3768639D1 (en) |
| ES (1) | ES2020989B3 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5699070A (en) * | 1991-03-04 | 1997-12-16 | Motorola, Inc. | Radio having replaceable and retractable antenna apparatus |
| US5485170A (en) * | 1993-05-10 | 1996-01-16 | Amsc Subsidiary Corporation | MSAT mast antenna with reduced frequency scanning |
| US5751251A (en) * | 1996-03-20 | 1998-05-12 | Hutchinson; Ronald M. | Automotive mobile telephone antenna silencer |
| US6034639A (en) * | 1997-12-22 | 2000-03-07 | T & M Antennas | Retractable antenna for portable communicator |
| US6095714A (en) * | 1998-04-03 | 2000-08-01 | Trw Inc. | Latch lock joint for telescoping tubes |
| KR100492892B1 (en) * | 2002-09-17 | 2005-06-02 | 주식회사 팬택 | A Helical-Type Retractable Antenna of mobile phone |
| TWM254052U (en) * | 2004-01-20 | 2004-12-21 | P Two Ind Inc | Probe pin |
| US7522111B2 (en) * | 2007-08-15 | 2009-04-21 | Uniden America Corporation | Telescoping antenna with retractable wire antenna element |
| US8695122B2 (en) | 2009-12-10 | 2014-04-15 | John Michael DeBoer | Adjustable facial protector |
| WO2017030957A1 (en) * | 2015-08-14 | 2017-02-23 | Tim Price, Inc. D/B/A Contact! Corporation | Cable management spiral |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE755893C (en) * | 1938-08-05 | 1951-08-02 | Schniewindt Komm Ges C | Rod antenna consisting of several telescoping parts |
| US2179415A (en) * | 1939-01-14 | 1939-11-07 | Radiart Corp | Aerial and the like |
| US2366299A (en) * | 1939-08-17 | 1945-01-02 | Radiart Corp | Radio antenna |
| US2346728A (en) * | 1941-10-20 | 1944-04-18 | Carlson Emil | Power driven operating means for extensible and retractable aerials |
| US2456330A (en) * | 1945-09-04 | 1948-12-14 | Shakespeare Products Co | Antirattling device for antenna masts |
| DE835016C (en) * | 1950-08-22 | 1952-03-27 | Sihn Kg Wilhelm Jun | Vehicle antenna |
| US2681412A (en) * | 1951-01-29 | 1954-06-15 | Webster Marvin | Whip antenna structure |
| DE894578C (en) * | 1951-08-07 | 1953-10-26 | Sihn Kg Wilhelm Jun | Vehicle antenna |
| BE515144A (en) * | 1951-11-27 | |||
| FR1081711A (en) * | 1953-07-29 | 1954-12-22 | Control for extending and folding telescopic tubes such as radio antennas on vehicles | |
| FR1161644A (en) * | 1956-11-17 | 1958-09-02 | Improvements to telescopic antennas | |
| US4567487A (en) * | 1984-06-15 | 1986-01-28 | Chu Associates, Inc. | Vibration-tolerant whip antenna |
-
1987
- 1987-10-30 EP EP87115939A patent/EP0275379B1/en not_active Expired - Lifetime
- 1987-10-30 DE DE8787115939T patent/DE3768639D1/en not_active Expired - Fee Related
- 1987-10-30 ES ES87115939T patent/ES2020989B3/en not_active Expired - Lifetime
- 1987-12-01 US US07/127,195 patent/US4920354A/en not_active Expired - Fee Related
- 1987-12-03 JP JP62307333A patent/JPS63152202A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES2020989B3 (en) | 1991-10-16 |
| DE3768639D1 (en) | 1991-04-18 |
| EP0275379A1 (en) | 1988-07-27 |
| JPS63152202A (en) | 1988-06-24 |
| US4920354A (en) | 1990-04-24 |
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