EP1067442B1 - Radio wristwatch - Google Patents

Radio wristwatch Download PDF

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Publication number
EP1067442B1
EP1067442B1 EP00111766A EP00111766A EP1067442B1 EP 1067442 B1 EP1067442 B1 EP 1067442B1 EP 00111766 A EP00111766 A EP 00111766A EP 00111766 A EP00111766 A EP 00111766A EP 1067442 B1 EP1067442 B1 EP 1067442B1
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EP
European Patent Office
Prior art keywords
case
radio wristwatch
wristwatch according
central part
spacer ring
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
Application number
EP00111766A
Other languages
German (de)
French (fr)
Other versions
EP1067442A2 (en
EP1067442B2 (en
EP1067442A3 (en
Inventor
Günter Megner
Rüdiger Daut
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.)
Junghans Uhren GmbH
Original Assignee
Junghans Uhren GmbH
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Publication date
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Application filed by Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/04—Input or output devices integrated in time-pieces using radio waves
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R60/00—Constructional details
    • G04R60/06—Antennas attached to or integrated in clock or watch bodies
    • G04R60/10—Antennas attached to or integrated in clock or watch bodies inside cases
    • G04R60/12—Antennas attached to or integrated in clock or watch bodies inside cases inside metal cases
    • 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
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals

Definitions

  • the invention relates to a radio wristwatch according to the preamble of claim 1.
  • a radio wristwatch as described for example in EP 0 896 262A1 or DE 93 15 670.7 is described, has proven itself in practice. It is characterized by exceptionally compact design of their work, like those - layered there from lamellae flexible ferrite rod antenna of the housing inner contour following in the circuit board with the processor for the electronic reception, Decoding and clock circuits is integrated. Indeed requires such a structure a non-metallic Watch case, because otherwise by the proximity of the metal the Antenna function not only as a result of mismatching but especially as a result of not over-compensate compensated Quality losses impaired until inoperability would become.
  • the magnetic Long-wave antenna also firmly attached to the bottom cover be.
  • the object of the invention is a radio-controlled watch to imagine which is less susceptible to interference.
  • the invention generally relates to a radio wristwatch which are the generic features of the generic term of claim 1.
  • a spacer ring made of electrically non-conductive material between the housing middle part and the antenna core to ensure an all-round radial distance from Antenna core to the inner wall of the housing middle part provided.
  • this magnetic Long wave antenna on the circuit board at the edge of the clockwork is arranged to ensure the all-round Radial distance from the antenna core to the inner wall of the electrically conductive housing middle part expediently in the housing middle part of a molded plastic spacer in turn inserted in the center as a recording ring for the factory equipped with the ferrite rod.
  • the Ferrite bar does not need the known design for positive fit snuggling the ends of the longest possible Stabes in the corresponding exempted inner periphery of the Spacer ring.
  • the non-metallic bottom of the watch case can be made of plastic consist. It is more appropriate, as on the visible side the watch glass also backward to use a bottom glass. Because The glass surface touching the wrist proves to be the skin opposite as extremely skin-friendly and completely allergy-free; and if no insight into the work after The type of skeleton watch you want is the inside of the bottom glass metallized metallically and thus opaque be designed. It can in the course of steaming the bottom view be designed ornamentally, for example by means of figurative templates; or the precipitate is subsequently eroded by laser (the black traces burned in the precipitation causes and also subsequently from the outside through the glass of the already assembled soil can) be figuratively edited.
  • the outlined in the drawing in Achsial longitudinal section radio wristwatch 11 has a housing 12 with a middle part 13 of electrically conductive material. It can work about a non-metallic injection molded part with metallic coating, preferably but a massive but radially thin stainless steel or titanium ring. The effect is a shield against interference, otherwise from one side Connected Metallgliederarmband added to the wristwatch housing Radio clock antenna can be coupled out. If the middle part 13 is not integral with a bezel 14 and / or a bottom ring 15 is formed, but these outlined as can be added as specially manufactured applications the housing middle part 13, can it from other - possibly also conductive - material than the preferred steel middle part 13 exist. For electrically conductive rings 14, 15 but these should not radially possible substantially beyond the central portion 13 out to the center of the wristwatch housing 12 protrude.
  • the bottom 16 which has been inserted into the housing 12, is a rigid plate made of electrically nonconductive material Material, in particular of ceramic or glass.
  • the latter can be to the housing interior carry a coating 17 through the glass bottom 16 through decorative or is configured informatively.
  • Opposite is in the housing 12, the watch glass 18 in conventional Way installed by means of a sealing ring 19.
  • a spacer ring 20 made of electrically non-conductive material, In particular, arranged from plastic injection molding, extending much further than the rings 14, 15 from the central part 13 to the center of the housing 12 extends.
  • the ring 20 can Integral be designed with an arena-like dial ring 21, or the latter is separate made of other material and as sketched on the visible end of the spacer ring 20 applied. Not shown is that the ring 20 with radial holes for receiving may be equipped by sleeves, in which the housing middle part 13 protruding plunger for the operation of switching operations in the radio movement 22 are performed waterproof.
  • the held in the housing 12 spacer ring 20 is used directly and / or by means of his dial ring 21 as a work ring, so to hold the movement 22 in the housing 12.
  • Der Edge of the visible side on the movement 22 resting, made of electrically non-conductive material existing dial 23 is radially overlapped by the dial ring 21 and thus concealed on the visible side.
  • the movement consists essentially of a gear train 24 for the Movement of pointers 25 and from an electronics block 26 on the one hand the drive control and on the other hand the reception and decoding of the encoded time information for periodic control and, if necessary, correction of the pointer position.
  • the receiver 27 is connected to a long wave magnetic antenna 28 in the form of one of Ferrite core 29 interspersed coil 30 is connected, as symbolically in the drawing sketch shown.
  • the spacer ring 20 between the metal watch case 12 and with the Antenna 28 equipped clockwork 22 ensures that the ferrite core 29 a sufficient radial distance from the interior of the metal housing 12 complies, the inner wall opposite to the center of the watch case 12 is offset.
  • the width of the spacer ring 20 is typically of the order of magnitude from 20% to 30% of the inner diameter of the wristwatch housing 12.
  • the antenna core 29 may be laminated, at a sufficient distance from the circulating metal watch case 12 but also satisfies an inflexible prismatic, about cylindrical Rod. It can, as symbolically sketched, radially with respect to the center of the watch case 12 mounted on the circuit board of the electronics block 26; or he is, depending on the Space requirements for the other electrical components, compared to the outlined Representation rotated 90 ° out of the drawing plane as a secant near the Outside periphery of the movement 22 arranged.
  • the long wave magnetic antenna 28 for reception the time information to be decoded not outside of the housing 12 as in particular
  • the housing middle part 13 formed as a thin solid or coated electrically conductive ring, within dessem a spacer ring 20 made of electrically non-conductive material, the movement 22nd with at its edge secantially arranged stretched prismatic antenna core 29th between two disks of electrically non-conductive material, namely the watch glass 18th and the housing bottom 16, at radial distance to the metal middle part 13, wherein the bottom 16 is preferably decorative or informative to the interior of the case coated glass plate is.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Selective Calling Equipment (AREA)
  • Toys (AREA)
  • Electromechanical Clocks (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Dental Preparations (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

A radio-controlled wristwatch includes a casing. A central portion of the casing disposed generally centrally with reference to a longitudinal center axis of the casing is formed of metal at least on the exterior thereof. An antenna core is disposed within a chamber defined by the casing. The antenna core lies on a plane oriented transversely with respect to the longitudinal axis. A spacer ring is disposed in the chamber between the central portion and the antenna core, the spacer ring formed of electrically non-conductive material.

Description

Die Erfindung betrifft eine Funkarmbanduhr gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a radio wristwatch according to the preamble of claim 1.

Eine Funkarmbanduhr, wie sie etwa in der EP 0 896 262A1 oder der DE 93 15 670.7 beschrieben ist, hat sich in der Praxis bewährt. Sie zeichnet sich durch außergewöhnlich kompakten Aufbau ihres Werkes aus, wie die - dort aus Lamellen geschichtete flexible Ferritstab-Antenne der Gehäuse-Innenkontur folgend in die Leiterplatte mit dem Prozessor für die elektronischen Empfangs-, Dekodierungs- und Uhrenschaltungen integriert ist. Allerdings bedingt ein derartiger Aufbau ein nicht-metallisches Uhrgehäuse, weil andernfalls durch die Nähe des Metalls die Antennenfunktion nicht nur infolge einer Fehlabstimmung sondern insbesondere auch infolge nicht über Nachstimmung kompensierbarer Güteverluste bis zur Funktionsunfähigkeit beeinträchtigt werden würde.A radio wristwatch, as described for example in EP 0 896 262A1 or DE 93 15 670.7 is described, has proven itself in practice. It is characterized by exceptionally compact design of their work, like those - layered there from lamellae flexible ferrite rod antenna of the housing inner contour following in the circuit board with the processor for the electronic reception, Decoding and clock circuits is integrated. Indeed requires such a structure a non-metallic Watch case, because otherwise by the proximity of the metal the Antenna function not only as a result of mismatching but especially as a result of not over-compensate compensated Quality losses impaired until inoperability would become.

Wenn dagegen aus gestalterischen Gründen ein metallenes Uhrgehäuse gewünscht wird, kann die magnetische Langwellenantenne zum Empfang der kodierten Zeitinformation nach außerhalb des Uhrgehäuses verlegt werden, im Falle einer Armbanduhr also in das Armband hinein, wie etwa in der EP 0 439 724 B2 näher beschrieben. Eine solche Lösung hat sich seit fast einem Jahrzehnt zum Standard entwickelt. Sie weist aber die grundsätzlichen Nachteile auf, dass sowohl der Armbandanschlag an das Uhrgehäuse (wegen des Erfordernisses einer flexiblen Einführung der Antennenleitung) wie auch das Armband selbst (wegen des zwar flexiblen aber doch nicht vernachlässigbaren Fremdkörpers in Form der lamellierten Ferritantenne im schlauchförmigen Armband) tragebedingt sehr verschleißgefährdet und damit störanfällig sind. If, on the other hand, for design reasons, a metal watch case is desired, the magnetic longwave antenna to receive the encoded time information outside the Clock case are moved, in the case of a wristwatch so in the bracelet into, as described in detail in EP 0 439 724 B2. Such a solution has been around for almost a decade developed to the standard. But she points out the fundamental Disadvantages on that both the bracelet stop on the Watch case (due to the requirement of flexible insertion the antenna line) as well as the bracelet itself (because of of the flexible but not negligible foreign body in the form of the laminated ferrite antenna in a tubular shape Armband) due to wear very vulnerable to wear and thus are prone to failure.

Bei Funkarmbanduhren mit metallenem Mittelteil, wie sie beispielsweise der Druckschrift DE 296 07 866 U1 zu entnehmen sind und von der die Erfindung ausgeht, kann die magnetische Langwellen-Antenne auch fest an dem Bodendeckel angebracht sein.In radio wristwatches with metal middle part, as for example to refer to the document DE 296 07 866 U1 are and from which the invention proceeds, the magnetic Long-wave antenna also firmly attached to the bottom cover be.

Es hat sich jedoch gezeigt, dass derartige Anordnungen vergleichsweise störanfällig sind, da es zum einen bei Erschütterung zu einem Ablösen der Langwellen-Antenne von dem entsprechenden Trägerteil kommen kann oder, sofern die Verbindung weniger starr ausgebildet ist, zu einem Verschieben der Langwellen-Antenne in Bezug auf das umgebende Gehäuse.However, it has been shown that such arrangements are comparatively are prone to failure, as it is on the one hand in vibration to a detachment of the long-wave antenna from the corresponding Carrier part can come or, provided the connection less is rigid, to a displacement of the long-wave antenna in relation to the surrounding housing.

Die Aufgabe der Erfindung besteht darin, eine Funkarmbanduhr vorzustellen, welche weniger störanfällig ist.The object of the invention is a radio-controlled watch to imagine which is less susceptible to interference.

Die Erfindung geht ganz allgemein von einer Funkarmbanduhr aus, welche die gattungsbildenden Merkmale des Oberbegriffs des Patentanspruch 1 aufweist. Zur Lösung der vorgenannten Aufgabe ist ein Distanzring aus elektrisch nichtleitendem Material zwischen dem Gehäuse-Mittelteil und dem Antennen-Kern zur Gewährleistung eines allseitigen radialen Abstandes vom Antennen-Kern zur Innenwandung des Gehäuse-Mittelteils vorgesehen.The invention generally relates to a radio wristwatch which are the generic features of the generic term of claim 1. To solve the above Task is a spacer ring made of electrically non-conductive material between the housing middle part and the antenna core to ensure an all-round radial distance from Antenna core to the inner wall of the housing middle part provided.

Für den konstruktiv zu bevorzugenden Fall, dass diese magnetische Langwellenantenne auf der Leiterplatte am Rand des Uhrwerkes angeordnet ist, wird zur Gewährleistung des allseitigen radialen Abstandes vom Antennen-Kern zur Innenwandung des elektrisch leitenden Gehäuse-Mittelteils hin zweckmäßigerweise in das Gehäuse-Mittelteil ein aus Kunststoff gespritzter Distanzring eingelegt, der seinerseits im Zentrum als Aufnahmering für das mit dem Ferritstab bestückte Werk dient. Für den Ferritstab braucht hierbei nicht die bekannte Ausführung zum formschlüssigen Einschmiegen der Enden eines möglichst langen Stabes in die entsprechend ausgenommene Innenperipherie des Distanzringes.For the structurally preferable case that this magnetic Long wave antenna on the circuit board at the edge of the clockwork is arranged to ensure the all-round Radial distance from the antenna core to the inner wall of the electrically conductive housing middle part expediently in the housing middle part of a molded plastic spacer in turn inserted in the center as a recording ring for the factory equipped with the ferrite rod. For the Ferrite bar does not need the known design for positive fit snuggling the ends of the longest possible Stabes in the corresponding exempted inner periphery of the Spacer ring.

Der nicht-metallische Boden des Uhrgehäuses kann aus Kunststoff bestehen. Zweckmäßiger ist es, wie auf der Sichtseite das Uhrglas auch rückwärtig ein Bodenglas einzusetzen. Denn die am Handgelenk anliegende Glasfläche erweist sich der Haut gegenüber als außerordentlich hautsympathisch und völlig allergiefrei; und wenn keine Einblickmöglichkeit ins Werk nach der Art einer Skelettuhr gewünscht wird, kann die Innenseite des Bodenglases metallisch bedampft und dadurch undurchsichtig gestaltet werden. Dabei kann im Zuge des Bedampfens die Bodenansicht ornamental gestaltet werden, etwa mittels figürlicher Schablonen; oder der Niederschlag wird anschließend durch Laser-Erodieren (das im Niederschlag schwarz verbrannte Bearbeitungsspuren hervorruft und auch nachträglich noch von außen durch das Glas des schon montierten Bodens hindurch erfolgen kann) figurativ bearbeitet.The non-metallic bottom of the watch case can be made of plastic consist. It is more appropriate, as on the visible side the watch glass also backward to use a bottom glass. Because The glass surface touching the wrist proves to be the skin opposite as extremely skin-friendly and completely allergy-free; and if no insight into the work after The type of skeleton watch you want is the inside of the bottom glass metallized metallically and thus opaque be designed. It can in the course of steaming the bottom view be designed ornamentally, for example by means of figurative templates; or the precipitate is subsequently eroded by laser (the black traces burned in the precipitation causes and also subsequently from the outside through the glass of the already assembled soil can) be figuratively edited.

Zusätzliche Merkmale, Weiterbildungen und Vorteile der Erfindung ergeben sich aus den weiteren Ansprüchen und aus nachstehender Beschreibung eines in der Zeichnung unter Beschränkung auf das Wesentliche stark abstrahiert und nicht maßstabsgerecht skizzierten bevorzugten Realisierungsbeispiels zur erfindungsgemäßen Lösung. Die einzige Figur der Zeichnung zeigt im Achsial-Längsschnitt den erfindungsgemäßen Aufbau einer Funkarmbanduhr mit in ein metallisches Uhrgehäuse integrierter magnetischer Langwellenantenne für den Empfang kodierter Zeitinformationen.Additional features, developments and advantages of the invention result from the further claims and from the following Description of one in the drawing under restriction abstracted to the essentials and not true to scale outlined preferred realization example of the inventive solution. The only figure of the Drawing shows in Achsial longitudinal section the construction of a radio alarm clock according to the invention with magnetic long wave antenna integrated in a metallic watch case for the reception of encoded time information.

Die in der Zeichnung im Achsial-Längsschnitt skizzierte Funkarmbanduhr 11 weist ein Gehäuse 12 mit einem Mittelteil 13 aus elektrisch leitendem Material auf. Es kann sich dabei etwa um ein nicht-metallisches Spritzgußteil mit metallischer Beschichtung handeln, vorzugsweise aber um einen zwar massiven aber doch radial dünnen Edelstahl- oder Titan-Ring. Der bewirkt eine Abschirmung gegen Störeinflüsse, die sonst von einem seitlich angeschlossenen Metallgliederarmband zur ins Armbanduhrengehäuse aufgenommenen Funkuhrenantenne hin eingekoppelt werden können. Falls das Mittelteil 13 nicht integral mit einem Glasreif 14 und/oder einem Bodenring 15 ausgebildet ist, sondern diese wie skizziert als besonders gefertigte Applikationen dem Gehäuse-Mittelteil 13 angefügt werden, können sie aus anderem - ggf. ebenfalls leitendem - Material als das bevorzugt stählerne Mittelteil 13 bestehen. Bei elektrisch leitenden Ringen 14, 15 sollten diese aber radial möglichst nicht wesentlich über das Mittelteil 13 hinaus zum Zentrum des Armbanduhr-Gehäuses 12 hinein ragen.The outlined in the drawing in Achsial longitudinal section radio wristwatch 11 has a housing 12 with a middle part 13 of electrically conductive material. It can work about a non-metallic injection molded part with metallic coating, preferably but a massive but radially thin stainless steel or titanium ring. The effect is a shield against interference, otherwise from one side Connected Metallgliederarmband added to the wristwatch housing Radio clock antenna can be coupled out. If the middle part 13 is not integral with a bezel 14 and / or a bottom ring 15 is formed, but these outlined as can be added as specially manufactured applications the housing middle part 13, can it from other - possibly also conductive - material than the preferred steel middle part 13 exist. For electrically conductive rings 14, 15 but these should not radially possible substantially beyond the central portion 13 out to the center of the wristwatch housing 12 protrude.

Der in das Gehäuse 12 eingesprengte Boden 16 ist eine steife Platte aus elektrisch nicht-leitendem Material, insbesondere aus Keramik oder Glas. Letzeres kann zum Gehäuseinnern hin eine Beschichtung 17 tragen, die durch den Glas-Boden 16 hindurch dekorativ oder informativ konfiguriert ist. Gegenüber ist in das Gehäuse 12 das Uhrglas 18 in herkömmlicher Weise mittels eines Dichtringes 19 eingebaut.The bottom 16, which has been inserted into the housing 12, is a rigid plate made of electrically nonconductive material Material, in particular of ceramic or glass. The latter can be to the housing interior carry a coating 17 through the glass bottom 16 through decorative or is configured informatively. Opposite is in the housing 12, the watch glass 18 in conventional Way installed by means of a sealing ring 19.

Im Innern des Gehäuses 12 ist ein Distanzring 20 aus elektrisch nicht-leitendem Material, insbesondere aus Kunststoff-Spritzguß angeordnet, der sich wesentlich weiter als die Ringe 14, 15 vom Mittelteil 13 zum Zentrum des Gehäuses 12 hin erstreckt. Der Ring 20 kann Integral mit einem arenaartigen Zifferblattring 21 ausgestaltet sein, oder letzterer ist separat aus anderem Material gefertigt und wie skizziert auf die sichtseitige Stirn des Distanzringes 20 appliziert. Nicht gezeichnet ist, daß der Ring 20 mit radialen Bohrungen zur Aufnahme von Hülsen ausgestattet sein kann, in denen das Gehäuse-Mittelteil 13 durchragende Stößel zur Betätigung von Umschaltvorgängen im Funkuhrwerk 22 wasserdicht geführt sind.In the interior of the housing 12 is a spacer ring 20 made of electrically non-conductive material, In particular, arranged from plastic injection molding, extending much further than the rings 14, 15 from the central part 13 to the center of the housing 12 extends. The ring 20 can Integral be designed with an arena-like dial ring 21, or the latter is separate made of other material and as sketched on the visible end of the spacer ring 20 applied. Not shown is that the ring 20 with radial holes for receiving may be equipped by sleeves, in which the housing middle part 13 protruding plunger for the operation of switching operations in the radio movement 22 are performed waterproof.

Der im Gehäuse 12 gehalterte Distanzring 20 dient unmittelbar und/oder mittels seines Zifferblattringes 21 als Werkring, also zur Halterung des Uhrwerks 22 im Gehäuse 12. Der Rand des sichtseitig auf dem Uhrwerk 22 aufliegenden, aus elektrisch nicht leitendem Material bestehenden Zifferblattes 23 wird vom Zifferblattring 21 radial übergriffen und somit sichtseitig kaschiert. Das Uhrwerk besteht im wesentlichen aus einem Räderwerk 24 für die Bewegung von Zeigern 25 und aus einem Elektronikblock 26 für einerseits die Antriebssteuerung und anderseits den Empfang und die Dekodierung der kodierten Zeitinformation zur periodischen Kontrolle und erforderlichenfalls Korrektur der Zeigerstellung. Dafür enthält der Elektronikblock 26 einen Langwellen-Empfänger 27, der fest auf einen Zeitsender wie denjenigen, der in Deutschland die gesetzliche Zeit verbreitet (DCF 77), abgestimmt ist. Der Empfänger 27 ist an eine magnetische Langwellenantenne 28 in Form einer von einem Ferritkern 29 durchsetzten Spule 30 angeschlossen ist, wie in der Zeichnungsskizze symbolisch dargestellt.The held in the housing 12 spacer ring 20 is used directly and / or by means of his dial ring 21 as a work ring, so to hold the movement 22 in the housing 12. Der Edge of the visible side on the movement 22 resting, made of electrically non-conductive material existing dial 23 is radially overlapped by the dial ring 21 and thus concealed on the visible side. The movement consists essentially of a gear train 24 for the Movement of pointers 25 and from an electronics block 26 on the one hand the drive control and on the other hand the reception and decoding of the encoded time information for periodic control and, if necessary, correction of the pointer position. Contains for it the electronics block 26 a long-wave receiver 27 fixed to a time transmitter like those who spread legal time in Germany (DCF 77). The receiver 27 is connected to a long wave magnetic antenna 28 in the form of one of Ferrite core 29 interspersed coil 30 is connected, as symbolically in the drawing sketch shown.

Wenn die Antenne 28 in unmittelbarer Nachbarschaft des metallenen Gehäuses 12 angeordnet wäre, dann würde wie schon erwähnt nicht nur eine (grundsätzlich kompensierbare) Resonanzverstimmung eintreten, sondern insbesondere auch eine derartige (nicht kompensierbare) Güteverminderung, daß mit brauchbaren Empfangsverhältnissen auch bei sehr empfindlichem Empfänger 27 nicht mehr gerechnet werden kann. Deshalb ist durch Zwischenlage des Distanzringes 20 zwischen dem metallenen Uhrgehäuse 12 und dem mit der Antenne 28 ausgestatteten Uhrwerk 22 sichergestellt, daß der Ferritkern 29 einen hinreichenden radialen Abstand vom Innern des metallenen Gehäuses 12 einhält, der Innenwandung gegenüber also zum Zentrum des Uhrgehäuses 12 hin versetzt ist. In der Montageebene des Kernes 29 gemessen liegt die Breite des Distanzringes 20 typisch in der Größenordnung von 20% bis 30 % des Innendurchmessers des Armbanduhrengehäuses 12.When the antenna 28 is disposed in the immediate vicinity of the metal housing 12 would be, then, as already mentioned, not only one (basically compensable) Incidence of resonance, but in particular also such (non-compensable) Quality reduction, that with usable reception conditions even at very sensitive receiver 27 can no longer be expected. That's why by liner the spacer ring 20 between the metal watch case 12 and with the Antenna 28 equipped clockwork 22 ensures that the ferrite core 29 a sufficient radial distance from the interior of the metal housing 12 complies, the inner wall opposite to the center of the watch case 12 is offset. In the assembly level measured the core 29, the width of the spacer ring 20 is typically of the order of magnitude from 20% to 30% of the inner diameter of the wristwatch housing 12.

Der Antennen-Kern 29 kann lamelliert sein, bei hinreichendem Abstand vom umlaufenden metallenen Uhrgehäuse 12 genügt aber auch ein unflexibler prismatischer, etwa zylindrischer Stab. Der kann, wie symbolisch skizziert, radial in Bezug auf das Zentrum des Uhrgehäuses 12 auf der Leiterplatte des Elektronikblockes 26 montiert sein; oder aber er ist, je nach den Platzerfordernissen für die übrigen elektrischen Bauelemente, gegenüber der skizzierten Darstellung um 90° aus der Zeichenebene heraus verschwenkt als Sekante in der Nähe des Außenumfangs des Uhrwerks 22 angeordnet. In dieser Ebene quer zur Zentralachse 31 der Funkarmbanduhr 11, also auch ihres Uhrwerks 22 und ihres Gehäuses 12, würden zwar an sich keine magnetischen Feldlinien, welche die Gläser 18, 16 parallel zur Zentralachse 31 durchsetzen, in den Kern 29 eintreten können; weil aber diese Feldlinien die Funkarmbanduhr 11 nicht ungestört durchsetzen, sondern durch Metallteile im Räderwerk 24 und durch das umgebenden metallenen Gehäuse-Mittelteil 13 in ihrer Ausbreitung verzerrt werden, tritt auch ein fur den Langwellenempfang hinreichender magnetischer Fluß durch den vorzugsweise lamellierten Kern 29 auf, ohne daß die Armbanduhr 11 durch eine etwa achsparallele Ausrichtung des Kernes 29 unzumutbar an Höhe gewinnen müßte.The antenna core 29 may be laminated, at a sufficient distance from the circulating metal watch case 12 but also satisfies an inflexible prismatic, about cylindrical Rod. It can, as symbolically sketched, radially with respect to the center of the watch case 12 mounted on the circuit board of the electronics block 26; or he is, depending on the Space requirements for the other electrical components, compared to the outlined Representation rotated 90 ° out of the drawing plane as a secant near the Outside periphery of the movement 22 arranged. In this plane transverse to the central axis 31 of the Radio wristwatch 11, including her movement 22 and its housing 12, would indeed There are no magnetic field lines, which the glasses 18, 16 parallel to the central axis 31st enforce, can enter the core 29; but because these field lines the radio wristwatch 11 not enforce undisturbed, but by metal parts in the gear train 24 and through distorting the surrounding metal housing middle part 13 in their propagation, Also occurs for the long-wave reception sufficient magnetic flux through the preferably Laminated core 29, without the wristwatch 11 by an approximately axis-parallel alignment of the core 29 unreasonable gain in height would have.

Um bei einer Funkarmbanduhr 11 einerseits nicht auf ein metallisches Gehäuse 12 verzichten zu müssen und andererseits die magnetische Langwellen-Antenne 28 für den Empfang der zu dekodierenden Zeitinformation nicht nach außerhalb des Gehäuses 12 wie insbesondere in ein Armband verlegen zu müssen, ist also erfindungsgemäß wenigstens das Gehäuse-Mittelteil 13 als dünner massiver oder beschichteter elektrisch leitender Ring ausgebildet, innerhalb dessem ein Distanzring 20 aus elektrisch nicht-leitendem Material das Uhrwerk 22 mit an dessem Rand sekantial angeordnetem gestreckt-prismatischem Antennen-Kern 29 zwischen zwei Scheiben aus elektrisch nicht-leitendem Material, nämlich dem Uhrglas 18 und dem Gehäuseboden 16, auf radialen Abstand zum metallenen Mittelteil 13 haltert, wobei der Boden 16 vorzugsweise eine zum Gehäuse-Innern hin dekorativ oder informativ beschichtete Glasplatte ist.In order not to do without a metallic housing 12 in the case of a radio-controlled watch 11, on the one hand and on the other hand, the long wave magnetic antenna 28 for reception the time information to be decoded not outside of the housing 12 as in particular To have to lay in a bracelet, so according to the invention at least the housing middle part 13 formed as a thin solid or coated electrically conductive ring, within dessem a spacer ring 20 made of electrically non-conductive material, the movement 22nd with at its edge secantially arranged stretched prismatic antenna core 29th between two disks of electrically non-conductive material, namely the watch glass 18th and the housing bottom 16, at radial distance to the metal middle part 13, wherein the bottom 16 is preferably decorative or informative to the interior of the case coated glass plate is.

Claims (12)

  1. A radio wristwatch (11) having a magnetic long-wave aerial (28) with aerial core (29) housed in its case (12), wherein the case (12) comprises between its watchglass (18) and a base (16) made from electrically non-conductive material a metallic central part (13) of the case, in compared to which the aerial core (29) is radially shifted in relation to the case (12) towards its centre,
    characterised in that a spacer ring (20) made from electrically non-conductive material is provided between the central part (13) of the case and the aerial core (29) to guarantee an all-round radial distance from the aerial core (29) to the inner wall of the central part (13) of the case.
  2. A radio wristwatch according to Claim 1,
    characterised in that the spacer ring (20) - seen in the axial direction of the case - is located in the region of the central part (13) of the case (13) and of the aerial core (29).
  3. A radio wristwatch according to Claim 1 or 2,
    characterised in that the spacer ring (20) extends from the central part (13) of the case towards the centre of the case (12).
  4. A radio wristwatch according to one of the preceding Claims,
    characterised in that the aerial core (29) is displaced in relation to the inner wall of the central part (13) of the case towards the centre of the case (12).
  5. A radio wristwatch according to one of the preceding Claims,
    characterised in that the width of the spacer ring (20) - measured in the assembly plane of the aerial core (29) - is in the magnitude of 20 % to 30 % of the internal diameter of the case (12).
  6. A radio wristwatch according to one of the preceding Claims,
    characterised in that the aerial core (29) is disposed in a plane transversely to a central axis (31) of the case (12).
  7. A radio wristwatch according to one of the preceding Claims,
    characterised in that the aerial core (29) is disposed along a secant close to an outer edge of the clockwork mechanism (22).
  8. A radio wristwatch according to one of the preceding Claims,
    characterised in that the spacer ring (20) is disposed between the central part (13) of the case and a clockwork mechanism (22).
  9. A radio wristwatch according to one of the preceding Claims,
    characterised in that the spacer ring (20) is constructed as a mechanism housing ring.
  10. A radio wristwatch according to one of the preceding Claims,
    characterised in that at least the central part (13) of the case is constructed as a thin, solid metal circlet, in particular made from stainless steel or titanium,
    or in that the central part (13) of the case is a non-metallic injection-moulded part having a metallic coating.
  11. A radio wristwatch according to one of the preceding Claims,
    characterised in that the base (16) is a ceramic or glass plate.
  12. A radio wristwatch according to one of the preceding Claims,
    characterised in that the base (16) is made from transparent or translucent electrically non-conductive material, which towards the interior of the case comprises an ornamentally or informatively designed/configured coating (17).
EP00111766A 1999-06-09 2000-06-03 Radio wristwatch Expired - Lifetime EP1067442B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19926271A DE19926271C2 (en) 1999-06-09 1999-06-09 Funkarmbanduhr
DE19926271 1999-06-09

Publications (4)

Publication Number Publication Date
EP1067442A2 EP1067442A2 (en) 2001-01-10
EP1067442A3 EP1067442A3 (en) 2004-05-19
EP1067442B1 true EP1067442B1 (en) 2005-08-31
EP1067442B2 EP1067442B2 (en) 2010-09-15

Family

ID=7910667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111766A Expired - Lifetime EP1067442B2 (en) 1999-06-09 2000-06-03 Radio wristwatch

Country Status (9)

Country Link
US (1) US6411569B1 (en)
EP (1) EP1067442B2 (en)
JP (2) JP3768384B2 (en)
CN (1) CN1134718C (en)
AT (1) ATE303617T1 (en)
DE (2) DE19926271C2 (en)
DK (1) DK1067442T4 (en)
ES (1) ES2245285T5 (en)
HK (1) HK1033744A1 (en)

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Also Published As

Publication number Publication date
ES2245285T3 (en) 2006-01-01
JP3768384B2 (en) 2006-04-19
DE19926271C2 (en) 2002-09-26
DE50011054D1 (en) 2005-10-06
EP1067442A2 (en) 2001-01-10
HK1033744A1 (en) 2001-09-21
EP1067442B2 (en) 2010-09-15
JP2006064708A (en) 2006-03-09
ATE303617T1 (en) 2005-09-15
EP1067442A3 (en) 2004-05-19
DK1067442T4 (en) 2011-01-03
US6411569B1 (en) 2002-06-25
CN1134718C (en) 2004-01-14
CN1277371A (en) 2000-12-20
DK1067442T3 (en) 2006-01-09
ES2245285T5 (en) 2010-11-29
JP2001033571A (en) 2001-02-09
DE19926271A1 (en) 2000-12-21

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