EP0186804B1 - Dispositif électronique perfectionné destiné à être porté au poignet - Google Patents

Dispositif électronique perfectionné destiné à être porté au poignet Download PDF

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Publication number
EP0186804B1
EP0186804B1 EP85115438A EP85115438A EP0186804B1 EP 0186804 B1 EP0186804 B1 EP 0186804B1 EP 85115438 A EP85115438 A EP 85115438A EP 85115438 A EP85115438 A EP 85115438A EP 0186804 B1 EP0186804 B1 EP 0186804B1
Authority
EP
European Patent Office
Prior art keywords
contacts
bracelet
case
foot
arrangement according
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
EP85115438A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0186804A1 (fr
Inventor
Jean-Philippe Rebeaud
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
Eta SA Fabriques dEbauches
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4300297&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0186804(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eta SA Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of EP0186804A1 publication Critical patent/EP0186804A1/fr
Application granted granted Critical
Publication of EP0186804B1 publication Critical patent/EP0186804B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • G04G17/06—Electric connectors, e.g. conductive elastomers
    • 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
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/08—Housings
    • G04G17/083—Watches distributed over several housings

Definitions

  • the present invention relates to electronic devices intended to be worn on the wrist of a user. More specifically, the invention relates to an electrical junction device between the parts of a circuit located respectively in the case and the bracelet of an electronic device intended to be worn on the wrist, in which, in each electrical path between said parts, is inserted a set of separable conjugate contacts but maintained applied one on the other, each set of contacts having at least partially a symmetry of revolution defining an axis.
  • Such a joining device is described in document GB-A-1 555 848.
  • This device comprises a block provided with holes in which are placed contact springs.
  • the bracelet provided with conductors has one end which is received inside the case and which is in contact with one face of the block so that each spring can come into contact with a conductor of the bracelet.
  • the opposite face of the block is in contact with an insulating part in which there are complementary conductors leading to the internal circuits of the electronic device.
  • the case thereof is in two parts assembled together, this assembly making it possible to tighten the block with the springs between the end of the bracelet and the insulating part.
  • the invention aims to remedy these drawbacks.
  • a device of the type defined above which is characterized in that the contacts are applied to one another by a latching force directed along said axis and in that they are surrounded by two complementary abutment surfaces provided one on the bracelet and the other on the case and applied one to the other by virtue of the presence of said snap-on force to protect the contacts from harmful influences coming from the outside, and in that one of the contacts of the contact set is a conductive pin anchored in the box or the bracelet and penetrating into an opening of the bracelet or respectively of the box, the latter or the latter and said conductive pin having complementary annular surfaces to ensure the latching.
  • the bracelet can easily be disassembled and reassembled without there being a risk of poor contact or deterioration in the quality of the seal protecting the contacts against harmful effects coming from the outside.
  • junction device It is thus possible to always ensure perfect sealing of the case and total insulation of the electrical contacts from the outside.
  • This latter property of the junction device according to the invention therefore protects the contacts from any harmful influence liable to cause corrosion which can be caused for example by the proximity of the skin of the user. The longevity of the contacts is therefore ensured.
  • connection device for a watch in which the bracelet comprises an antenna formed by a conductive tape.
  • the bracelet comprises an antenna formed by a conductive tape.
  • On this ribbon comes to bear a contact piece under the action of a locking system of the watch case which is articulated on a strand of the bracelet.
  • this device there is therefore no set of contacts associated with an elastic latching arrangement whose latching force acts in the direction of a better contact pressure.
  • FIGS. 1, 2 and 2A relates to a box B associated with a bracelet BR between which several electrical paths must be established, at the level of the separation between these two elements, by junction devices according to the invention, these devices being designated as a whole by the reference 1.
  • the box B contains the electrical or electromechanical circuit of a timepiece, but it should be emphasized that the invention applies in all cases where an electronic device is associated with a bracelet which includes one or more components to be associated with the circuit which is located in the case B.
  • this box contains a printed electrical circuit CI provided with an integrated circuit (not shown) and a display device DA, the box being closed by a glass G.
  • the junction device comprises sets of contacts 2 composed of a rigid conductive element 3 and of an elastic conductive element 4.
  • the first of these contacts is here a conductive pin of generally cylindrical shape with an axis X-X.
  • This pin has an outer surface composed of several portions which are, seen from top to bottom in FIG. 2A, a bearing 5 separated from a bearing 6 by a radial shoulder 7, a frustoconical portion 8 followed by a cylindrical portion 9, a bearing surface 10 separated from the cylindrical portion 9 by a shoulder 11, a portion 12 in the form of a "diabolo" having in particular two inclined surfaces 12a and 12b between which is provided a cylindrical surface 12c, a cylindrical portion 13 and finally a point 14 of general conical shape.
  • This relatively tormented shape of the outer surface of the pin is intended, in the area where this pin is fixed in the housing B, to ensure an integrity seal, in order to isolate the exterior of the interior cavity thereof.
  • the housing has a hole 15 with surface portions complementary to those of the corresponding part of the pin, but which it is unnecessary to describe in detail here.
  • the final shape of the hole 15 of the housing through which the pin 3 extends is obtained during the positioning thereof which, preferably, is carried out by the application of ultrasound.
  • this seal can be perfected by pouring a small amount of a polymerizable material around the top of the pin 3, after the pin has been put in place, this material being sucked by capillary action around the surface 5 in order to close all interstices. possibly remaining around the body of the pin inserted in the housing B.
  • the portions 12a, 12b and 12c are intended to ensure the joining by elastic snap-fastening of the joining device.
  • the end of the bracelet BR is shaped so as to define a cavity 16, into which the lower part of the pin 3 can penetrate.
  • the part of the junction device housed in the bracelet comprises four function keys generally designated by the references Ta to Td which can trigger in the circuit CI the functions "Watch”, “Alarm”, “Chronograph” and "Timer”.
  • the half-bracelet shown has two strips 17a and 17b made of a flexible plastic material, the strip 17b fitting into a recess 18 provided in the end part of the strip 17a close to the housing B.
  • This recess has a thickness which is roughly equal to half the total thickness of the strip 17a.
  • This is made integral with the strip 17b, by gluing for example, an adhesive being provided for this purpose (in 19) over the entire periphery of the strip 17b.
  • This strip 17b is also provided with a set of conductors 20 which can be affixed thereto by screen printing for example. This set of conductors is provided on the face of the strip 17b facing the strip 17a.
  • FIG. 3 shows that the set of conductors defines four fixed contacts each produced in the form of two combs 21 a to 21 d respectively associated with mobile contacts formed by metallizations 22 (only the metallization of the Td key appearing clearly on the figure 1).
  • Each set of a fixed contact and a movable contact forms a switch which is closed when, by finger pressure, the zone corresponding to a given key is deformed and the metallization 22 pressed on the corresponding nested combs.
  • FIG. 3 it is also clearly seen that the pairs of combs 21a to 21d are connected to conductors 24a to 24e, it being understood that the conductor 24a is common to all the pairs of combs 21a to 21d.
  • Each of the conductors 24a to 24e extends towards the end of the strip 17b to end in a terminal 25.
  • the metallization 22 connects to one another the two combs corresponding to this key, which establishes a short circuit between the conductor 24a on the one hand and one of the conductors 24b to 24e on the other hand, the two corresponding terminals 25 are then connected to each other.
  • the strip 17a also comprises a thickened zone 26, of convex shape, in which is provided a transverse opening 27 intended to receive a pin 28 by means of which the bracelet is articulated to the case B, the latter comprising for this purpose a shape adapted to the boss 26 (see in particular Figure 2). It should be noted that the articulation between the case B and the bracelet BR is only partially shown, its shape being moreover conventional.
  • Each of these devices therefore comprises, centered on the axis XX an annular rib 29 having a frustoconical outer surface 30, to which corresponds a frustoconical complementary surface 31 provided in the housing B and which therefore constitutes a portion of the wall of the hole 15 of this one.
  • annular rib 29 having a frustoconical outer surface 30, to which corresponds a frustoconical complementary surface 31 provided in the housing B and which therefore constitutes a portion of the wall of the hole 15 of this one.
  • the annular rib 29 thus delimits the cavity 16 described above, the mouth of which is formed by a flange 32.
  • the radial section of the latter has a V shape, the point of which is directed towards the axis X-X.
  • one of the branches of this V that is to say that which is closest to the free end of the pin 3, is inclined relative to the radial plane passing through the tip of the V by 30 °, the other branch being 60 °.
  • the insertion of the pin 3 in the cavity 16 first produces a deformation of the rib 32 at the passage of the portion 13, then an elastic snap-fastening when this flange 32 enters the groove delimited by the portions 12a to 12c of the pin 3.
  • the dimensions of the parts have been chosen such that the surfaces 30 and 31 are applied closely to each other, the rib 29 being pulled axially upwards (force F indicated in FIG. 2). To this is added that the frustoconical surfaces 30 and 31 shrink in a direction which corresponds to that in which the latching force acts.
  • the contact clearances are provided in a zone of the bracelet which is situated at one end which extends beyond the articulation of the bracelet with respect to its main strand, said force is in a way increased by a force. which results from the couple created around the axis 27 by the natural curvature of the bracelet when the electronic device is worn on the wrist. It therefore follows that the cavity 16 in which the electrical contact is established is perfectly isolated from the outside.
  • connection block 33 which constitutes an elastomeric connector composed of alternately conductive and insulating zones and made of a flexible material such as silicone, the conductive zones being charged by carbon particles. It is therefore understood that these conductive zones can establish an electrical connection between the terminals 25 and the ends of the pins 3, the latter slightly deforming the contact block 33 where they are applied to the latter. It should be noted that the elasticity of the block 33 contributes to a good contact pressure thanks to the deformation that this block undergoes during the assembly of the junction devices.
  • abutment surfaces 30 and 31 have a frustoconical shape coaxial with the axis XX, their conicity being rotated so that they are applied to one another with an even greater force that the holding force of the pin in the cavity 16 is greater.
  • the joining device comprises conductive pins 34 whose end, instead of having a hollow profile, has a larger diameter than the rest of the pin, in order to ensure the snap-fastening in an annular groove inner 35 that has the rib 29. It is understood that this arrangement has the same effects as those resulting from the junction device described above, the surfaces 30 and 31 being applied to each other in the same way.
  • FIG. 5 it is an inverted arrangement in the sense that a pin 36 is provided in a conductive material which is anchored by a flange 37 in a cavity 38 formed in the rib 29 of the coverslip 17a.
  • This pin is also immobilized by the strip 17b which, as previously described, is glued to the strip 17a.
  • the upper part of the pin 36 has a boss 39 of circular section and of a shape roughly identical to that of the end of the pin 34 in FIG. 4, this boss being inserted in an opening 40 provided in the housing, l elastic snap being obtained by the fact that the boss 39 has a diameter greater than that of the opening 40.
  • the surfaces 30 and 31 formed respectively on the rib 29 of the bracelet BR and on the case B are applied one on the other by the force generated by the elastic snap.
  • the boss 39 is applied against a contact block 41 which is housed in the case instead of being in the bracelet.
  • the variant shown in Figure 6 differs from the previous embodiment in that the sealing surfaces 30 and 31 are not provided individually for each junction device, but on the contrary are common to all of them.
  • a rib 50 is provided which goes around a row of holes 51 aligned along the end edge of the tongue 17a of the bracelet BR, a complementary arrangement being provided on the case B. elastic, on the contrary, is obtained individually for each pawn.
  • Fig. 6 can be of reverse design, that is to say with the pin on the bracelet and the rib on the case.
  • the strip 17b has reinforcement zones 55 separated by transverse grooves 56 and intended to reinforce the bracelet opposite the keys Ta to Td, this in order to avoid the risk of untimely contact due to the curvature of the bracelet.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
EP85115438A 1984-12-10 1985-12-05 Dispositif électronique perfectionné destiné à être porté au poignet Expired - Lifetime EP0186804B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH584784A CH657743GA3 (enrdf_load_stackoverflow) 1984-12-10 1984-12-10
CH5847/84 1984-12-10

Publications (2)

Publication Number Publication Date
EP0186804A1 EP0186804A1 (fr) 1986-07-09
EP0186804B1 true EP0186804B1 (fr) 1990-03-14

Family

ID=4300297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115438A Expired - Lifetime EP0186804B1 (fr) 1984-12-10 1985-12-05 Dispositif électronique perfectionné destiné à être porté au poignet

Country Status (7)

Country Link
US (1) US4690567A (enrdf_load_stackoverflow)
EP (1) EP0186804B1 (enrdf_load_stackoverflow)
JP (1) JPS61160080A (enrdf_load_stackoverflow)
CH (1) CH657743GA3 (enrdf_load_stackoverflow)
DE (1) DE3576583D1 (enrdf_load_stackoverflow)
HK (1) HK71193A (enrdf_load_stackoverflow)
SG (1) SG24093G (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673073B5 (enrdf_load_stackoverflow) * 1988-08-24 1990-08-15 Ebauchesfabrik Eta Ag
JPH02118890U (enrdf_load_stackoverflow) * 1989-03-10 1990-09-25
DE9000899U1 (de) * 1990-01-27 1991-05-23 Junghans Uhren Gmbh, 78713 Schramberg Autonome Funkuhr
WO1995002210A1 (fr) * 1993-07-05 1995-01-19 Seiko Epson Corporation Dispositif electronique a bracelet
US5757731A (en) * 1993-11-19 1998-05-26 Rosenberg; Burton A. Linear digital-analog interactive wristwatch
JP2000206272A (ja) * 1998-11-13 2000-07-28 Seiko Instruments Inc 熱発電器付き電子時計
CA2292194C (en) * 1998-12-22 2010-02-16 Eta Sa Fabriques D'ebauches Wristwatch with capacitive coupling
EP1014232B1 (fr) 1998-12-23 2009-03-18 The Swatch Group Management Services AG Pièce d'horlogerie radio téléphone comportant une carte SIM
EP1113346B1 (fr) 1999-12-29 2009-08-12 Asulab S.A. Montre-bracelet pourvue d'une antenne
JP2002136311A (ja) * 2000-08-23 2002-05-14 Seiko Instruments Inc 腕情報機器
JP4593336B2 (ja) * 2005-03-28 2010-12-08 シチズンホールディングス株式会社 導電性の配線を内蔵したバンドの連結構造
CN201226086Y (zh) * 2008-03-29 2009-04-22 陈笠 智能卡手表
US9461386B1 (en) * 2015-10-09 2016-10-04 Pebble Technology, Corp. Spring pin electrical connector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977176A (en) * 1974-08-22 1976-08-31 Citizen Watch Co., Ltd. Electronic watch structure

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075505B (de) * 1960-02-11 Durowe (Deutsche Uhren Rohwerke) L Hummel & Co Ptorzheirr> Arm banduhr mit emer außerhalb angtordnt. ten Stromquellt
US2665542A (en) * 1952-04-26 1954-01-12 Hamilton Watch Co Desk clock
GB880121A (en) * 1958-04-16 1961-10-18 Durowe A G An electric wristlet watch
DE1094667B (de) * 1958-04-24 1960-12-08 Durowe Deutsche Uhren Rohwerke Elektronische Armbanduhr
CH377736A (fr) * 1961-06-27 1964-01-31 Georges Ruedin S A Montre électrique
US3783604A (en) * 1973-02-05 1974-01-08 Revision Traitement De I Infor Wrist watch with a dial-illuminating device
FR2284149A1 (fr) * 1974-09-09 1976-04-02 Delta Transnational Inc Montre numerique a bracelet sans boitier et a module fonctionnel enfichable
US3973706A (en) * 1974-12-30 1976-08-10 Jacoby-Bender, Inc. Connection from watchband-carried battery to electronic watch
US3975899A (en) * 1975-05-05 1976-08-24 Haber Terry M Multi-function watch casing
JPS5426044Y2 (enrdf_load_stackoverflow) * 1977-02-26 1979-08-29
DE2940246A1 (de) * 1979-10-04 1981-04-16 Gebrüder Junghans GmbH, 7230 Schramberg Elektronische armbanduhr mit elektrischen anschluss-kontakten
GB8313658D0 (en) * 1983-05-17 1983-06-22 Sinclair Res Ltd Strap assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977176A (en) * 1974-08-22 1976-08-31 Citizen Watch Co., Ltd. Electronic watch structure

Also Published As

Publication number Publication date
HK71193A (en) 1993-07-30
JPS61160080A (ja) 1986-07-19
CH657743GA3 (enrdf_load_stackoverflow) 1986-09-30
US4690567A (en) 1987-09-01
SG24093G (en) 1993-08-06
DE3576583D1 (de) 1990-04-19
JPH0411832B2 (enrdf_load_stackoverflow) 1992-03-02
EP0186804A1 (fr) 1986-07-09

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