EP0704927A1 - Bracelet à antenne pour une montre radio autonome - Google Patents

Bracelet à antenne pour une montre radio autonome Download PDF

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Publication number
EP0704927A1
EP0704927A1 EP95113813A EP95113813A EP0704927A1 EP 0704927 A1 EP0704927 A1 EP 0704927A1 EP 95113813 A EP95113813 A EP 95113813A EP 95113813 A EP95113813 A EP 95113813A EP 0704927 A1 EP0704927 A1 EP 0704927A1
Authority
EP
European Patent Office
Prior art keywords
bracelet
antenna
blind hole
end section
hole channel
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Withdrawn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
EP95113813A
Other languages
German (de)
English (en)
Inventor
Pieter Kuschel
Inge Ganter-Kaufmann
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
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 Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
Publication of EP0704927A1 publication Critical patent/EP0704927A1/fr
Withdrawn legal-status Critical Current

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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
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R60/00—Constructional details
    • G04R60/04—Antennas attached to or integrated in watch bracelets
    • 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 an antenna bracelet provided for an autonomous radio wristwatch according to the preamble of claim 1.
  • a magnetic antenna with a ferrite core passing through a coil in the bracelet of an autonomous radio wristwatch is known, for example, from EP 0 348 636 B1.
  • the coil is connected to a receiver in the watch.
  • the ferrite core is stacked as a long-wave antenna made of flexible thin strips made of a highly permeable metal.
  • the antenna made of flexible thin strips is framed by the bracelet, which is flexible and also covers the coil.
  • the bracelet surrounding the antenna is usually made of leather.
  • EP 0 439 724 A2 discloses an autonomous radio clock with a flexible magnetic antenna attached to one Receiver is connected in a housing of the autonomous radio wristwatch by means of a plug, from which a flexible antenna carrier extends into a blind hole channel of an antenna wristband.
  • the antenna bracelet that defines the blind hole channel is usually made of leather.
  • EP 0 383 364 B1 discloses a process for producing ring-shaped objects which have at least one layer of leather and a layer of plastic which is connected to this layer and serves as a carrier.
  • the layer of leather is arranged in the form of a blank including its edges within the cavity of a mold and held in the mold by suction against the wall of the mold cavity, the blank being connected to the plastic in the mold cavity by flowing plastic into the mold cavity State or in the solid state, preferably as a preform, which is brought into its plastic state at least in the area of its surface, is introduced and penetrates into the blank, and wherein the plastic is molded around the edges of the blank.
  • This known method is used in particular for producing push loops.
  • the invention has for its object to provide an antenna bracelet of the type mentioned, which is simple and inexpensive to manufacture, while at the same time an improvement in product quality in terms of watertightness and mechanical fatigue strength, esp. Breaking resistance, is achieved.
  • the antenna bracelet according to the invention By designing the antenna bracelet according to the invention with a first plastic part that forms the lower part of the bracelet and a second plastic part that forms the upper part of the bracelet, which are connected in one piece and define the blind hole channel for the antenna device of the autonomous radio-controlled wristwatch, it is simple Means, ie possible with a relatively simply designed mold to produce the antenna bracelet according to the invention. This is possible in particular because the tongue-shaped slide of the molding tool which defines the blind hole channel is defined in a defined manner by the corresponding mold half, so that vibrations of the slide, which could lead to a manufacturing exclusion, are avoided during the plastic injection molding process.
  • a first plastic part which forms the lower bracelet part
  • a second plastic part which forms the upper bracelet part
  • the principle of so-called multi-color injection molding is therefore used to manufacture the antenna bracelet according to the invention.
  • the antenna bracelet according to the invention if it is designed to be curved in its longitudinal direction to match a wrist. With one curved design, it is useful if the bracelet upper part is designed with a convex outer surface, because such a convex outer surface with a further curvature of the antenna bracelet in adaptation to a wrist, that is, with a reduction in the radius of curvature, a corresponding reduction or cancellation the convex shape of the outer surface.
  • a very easy-to-implement antenna wristband is obtained if the first and the second plastic part consist of the same plastic material, because in this case it is very simple and possible to produce corresponding antenna wristbands with a high number of cycles.
  • the same purpose i.e. a high productivity, it is useful if the blind hole channel is extended towards its open end portion.
  • a correspondingly expanded tongue-shaped slide is used in the molding tool for producing the antenna bracelet according to the invention, which can be removed from the antenna bracelet quickly and easily after the injection molding process to implement the antenna bracelet.
  • a suitable antenna device for an autonomous radio-controlled wristwatch in such a blind hole channel that is extended toward the open end section.
  • This can be an antenna device as disclosed in EP 0 348 636 B1 mentioned at the beginning; however, it is also possible to arrange another suitable antenna device in the blind hole channel of the antenna bracelet.
  • the plug member in the blind hole channel the antenna bracelet is mechanically fixed and reliably fixed, there is an excellent seal, so that the antenna device is very well protected against external influences.
  • the formation of the antenna bracelet according to the invention made of plastic material has the further considerable advantage that the antenna bracelet against salt water, sweat or the like. is extremely stable. According to the invention, this results in an antenna armband with excellent properties that is simple and inexpensive to manufacture.
  • FIG. 1 shows sections of a first upper mold part 10 and a first lower mold part 12 of a plastic injection mold 14, and sections of a tongue-shaped slide 16, which is arranged between the first upper mold part 10 and the first lower mold part 12.
  • the slide 16 is expediently designed to be flared. It lies flat against a contact section 20 of the first molded cover 10.
  • the free end section 18 of the slide 16 is of a gradation 22 of the lower mold part 12 in a defined distance, so that there is a first mold cavity 26 between the first upper mold part 10 and the slide 16 resting thereon and the first lower mold part, ie a free contour 24 of the first lower mold part 12.
  • this first mold cavity 26 is filled with a plastic material 28, which forms a lower bracelet part 30 of the antenna bracelet 32 according to the invention (see FIG. 3).
  • the design of the first upper mold part 10 and the first lower mold part 12 and the arrangement of the slider 16 shown in FIG. 1 between the first upper mold part 10 and the first lower mold part 12 result in a lower bracelet part 30 with a free first partial end section 34.
  • the slide 16 in is held between the second upper mold part 36 and the lower mold part 12 in the work step following the first injection molding or transfer molding process, so that vibrations of the slide 16 are prevented when in the through the inner contour 40 of the second upper mold part 36 and a plastic material 46 is introduced into the slider 16 and the second mold cavity 44 defined in the lower bracelet part 30.
  • This plastic material 46 can be the same plastic material as is introduced into the first mold cavity 26 (see FIG. 1). This results in a positive integral connection of the plastic materials 28 and 46, i.e. of the bracelet lower part 30 with the bracelet upper part 48 determined by the second mold cavity 44.
  • the lower bracelet part 30 and the upper bracelet part 48 which form a first plastic part 50 and a second plastic part 52, which are integrally connected to one another, define a blind hole channel 54 corresponding to the tongue-shaped slider 16 (see FIGS. 1 and 2), which is open on one side, ie has an open end section 56.
  • the second end 58 of the blind hole channel 54 which is distant therefrom, is closed off and delimited by the first partial end section 34 and a second partial end section 45 connected thereto.
  • the first and the second partial end sections 34 and 45 form a common end section 60 on the side remote from the open end section 56 of the blind hole channel 54.
  • a bracelet clip (not shown) or another connection or Fastening member to be attached.
  • FIG. 4 illustrates that the upper bracelet part 48 can preferably be formed with a convex outer surface 62 in the transverse direction.
  • the reference numeral 64 denotes the plane of separation between the upper bracelet 48 and the lower bracelet 30.
  • FIG. 5 shows a section of a section of the antenna bracelet 32 or its open end section 56, which is tightly closed by means of a plug member 66.
  • the plug member 66 is provided with a sealing or
  • Insert portion 68 formed, which seals the open end portion 56 of the blind hole channel 54.
  • the insertion section 68 can be glued into the bracelet 32.
  • a plug part 70, from which contact pins 72 protrude, is formed on the front side of the insertion section 68.
  • the plug member 66 is formed with a first fastening hole 74.
  • An antenna feed device 76 extends sealingly through the plug member 66 and acts as a two-wire device, as a coaxial conductor device, as a shielded band conductor device or the like. can be formed, and which is contacted with the contact pins 72 in an electrically conductive manner.
  • the antenna feed device 76 is contacted with an antenna device (not shown in the drawings) in the blind hole channel 54 of the antenna bracelet 32 made of plastic material.
  • the antenna bracelet 32 is formed at the open end section with a second fastening hole 78, which is provided for fastening a watch housing 80, shown in sections and partially cut away in FIG. 6, by means of associated fastening elements. These fasteners are e.g. around small fastening screws. This not only results in a reliable fastening of the antenna bracelet 32, which is only partially and partially cut open in FIG. 6, and of the plug member 66 on the watch case, but at the same time a mechanically fixed connection between the antenna bracelet 32 by means of the watch case 80 and the plug member 66. At the same time, a reliable seal between the plug member 66 and the watch case 80 of the autonomous radio-controlled wristwatch 82 is thereby achieved.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP95113813A 1994-09-05 1995-09-02 Bracelet à antenne pour une montre radio autonome Withdrawn EP0704927A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9414353U 1994-09-05
DE9414353U DE9414353U1 (de) 1994-09-05 1994-09-05 Antennenarmband für eine autonome Funkarmbanduhr

Publications (1)

Publication Number Publication Date
EP0704927A1 true EP0704927A1 (fr) 1996-04-03

Family

ID=6913288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113813A Withdrawn EP0704927A1 (fr) 1994-09-05 1995-09-02 Bracelet à antenne pour une montre radio autonome

Country Status (2)

Country Link
EP (1) EP0704927A1 (fr)
DE (1) DE9414353U1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3340122A1 (de) 1983-11-05 1985-05-23 Fickenscher & Co GmbH Werkzeug-und Formenbau, 8672 Selb Verfahren zum spritzgiessen von gegenstaenden aus kunststoff
GB2201266A (en) * 1986-12-23 1988-08-24 Upperpace Limited A radio paging watch
EP0348636A1 (fr) 1988-05-27 1990-01-03 Junghans Uhren Gmbh Petite antenne pour une montre commandée par radio
EP0439724A2 (fr) 1990-01-27 1991-08-07 Junghans Uhren Gmbh Horloge radio-pilotée autonome
EP0383364B1 (fr) 1985-04-15 1992-07-29 Hirsch Armbänder Gesellschaft m.b.H. Procédé pour la fabrication d'objets annulaires ayant au moins deux couches
US5135694A (en) * 1989-11-10 1992-08-04 Seiko Epson Corporation Electronic device wristband
EP0631341A1 (fr) * 1993-06-28 1994-12-28 Seiko Instruments Inc. Dispositif électrique avec un circuit de câblage dans un bracelet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3340122A1 (de) 1983-11-05 1985-05-23 Fickenscher & Co GmbH Werkzeug-und Formenbau, 8672 Selb Verfahren zum spritzgiessen von gegenstaenden aus kunststoff
EP0383364B1 (fr) 1985-04-15 1992-07-29 Hirsch Armbänder Gesellschaft m.b.H. Procédé pour la fabrication d'objets annulaires ayant au moins deux couches
GB2201266A (en) * 1986-12-23 1988-08-24 Upperpace Limited A radio paging watch
EP0348636A1 (fr) 1988-05-27 1990-01-03 Junghans Uhren Gmbh Petite antenne pour une montre commandée par radio
US5135694A (en) * 1989-11-10 1992-08-04 Seiko Epson Corporation Electronic device wristband
EP0439724A2 (fr) 1990-01-27 1991-08-07 Junghans Uhren Gmbh Horloge radio-pilotée autonome
EP0631341A1 (fr) * 1993-06-28 1994-12-28 Seiko Instruments Inc. Dispositif électrique avec un circuit de câblage dans un bracelet

Also Published As

Publication number Publication date
DE9414353U1 (de) 1996-01-11

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