EP0306037B1 - Uhr mit einem Zifferblatt - Google Patents

Uhr mit einem Zifferblatt Download PDF

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Publication number
EP0306037B1
EP0306037B1 EP88114344A EP88114344A EP0306037B1 EP 0306037 B1 EP0306037 B1 EP 0306037B1 EP 88114344 A EP88114344 A EP 88114344A EP 88114344 A EP88114344 A EP 88114344A EP 0306037 B1 EP0306037 B1 EP 0306037B1
Authority
EP
European Patent Office
Prior art keywords
dial
stop
watch
angular
annular groove
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
EP88114344A
Other languages
English (en)
French (fr)
Other versions
EP0306037A1 (de
Inventor
Clément Meyrat
Antoine Dubois
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
Application filed by Eta SA Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of EP0306037A1 publication Critical patent/EP0306037A1/de
Application granted granted Critical
Publication of EP0306037B1 publication Critical patent/EP0306037B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/14—Fastening the dials to the clock or watch plates

Definitions

  • the present invention relates to watches of the type comprising a box, a dial, hands, as well as means for fixing the dial in the watch.
  • the dial is made of metal and generally has welded feet, engaged in holes in the plate and fixed to the latter by screws or fixing keys.
  • the decoration is carried out by means of sconces fixed in the metal.
  • This metal generally brass, can be coated with a layer of varnish, or another noble metal, deposited galvanically. Patterns such as the mark or the minute markers can be printed by pad printing.
  • Dials produced using aluminum foil are also known, with planar and parallel upper and lower faces. These dials, used in particular in watches sold under the SWATCH brand (registered trademark), are coated with a decoration comprising several colors, by serigraphy or decal.
  • Patent application FR-2 212 573 discloses another solution in which several so-called front, median and base dials are stacked to sandwich a photograph or the like formed by the medial dial, while the front dial is transparent and has by printing, cutting or engraving, indications in particular intended to provide time information.
  • This arrangement comprises a dial made of organic material and means for positioning the dial in the watch, these positioning means comprising a first and a second part, the first part which is fixed and positioned axially, radially and angularly in the box being intended to receive the second part which is integral with the dial and associated with its periphery while the first part defines an annular groove which opens towards the axis of the hands.
  • the first part includes plus an angular stop engaged in the annular groove, to ensure the axial positioning of the dial, this angular stop cooperating with at least one angular counter-stop formed on the second part.
  • US Pat. No. 554,511 describes the mounting of a dial on a movement by means of a metal support provided, on the one hand with a peripheral rim holding the dial radially, and on the other hand, feet coming to join directly on the movement.
  • Patent FR-1 338 863 discloses the mounting of a dial on a support of the type of that mentioned above, by means of peripheral notches on the support receiving corresponding tabs of the dial.
  • the present invention aims to allow the use of dials in organic materials, without affecting the reliability of the watch.
  • the subject of the present invention is a watch comprising a box with a crystal, a middle part, a back, a movement, hands, a dial made of organic material and means for positioning the dial in the watch, these positioning means comprising a first and a second part, the first part which is fixed and positioned axially, radially and angularly in the box being intended to receive the second part which is integral with the dial and associated with its periphery, this first part defining a annular groove which opens towards the axis of the needles, said first part comprising at least one angular stop engaged in the annular groove, to ensure the axial positioning of the dial, this angular stop cooperating with at least one angular counter-stop formed on the second part, this watch being characterized in that the first part of its positioning means cooperates with a member, such as directly the crystal or a ring forming, for example flange, to define the groove annular which opens towards the axis of the hands and in which is freely engaged the second part which is
  • FIGS. 1 and 2 we can see a watch with a case 10, a movement 12, a dial 14, as well as hands 15.
  • the box 10 for example made of aluminum alloy, comprises a bottom 16 and a middle part 18 formed in one piece, and a crystal 20 engaged in the middle part and bearing against an annular flat surface 22 of the latter.
  • the dial 14 is mounted on the movement 12 by a dial support 24.
  • the latter is formed from a thin metal plate, for example 0.15 mm thick steel, having folded parts.
  • the support 24 has, in its central part, two tongues 26 extending perpendicular to the plane of the watch, towards the inside of the movement. These tongues 26 are engaged in holes 27 of the movement 12 which in conventional constructions are intended to receive the feet of the dial. In Figures 1 and 2, only a tongue 26 and a hole 27 are visible.
  • the periphery of the support 24 comprises four folds distributed uniformly and extending towards the front of the watch, to form feet 28.
  • the height of the feet 28 is slightly greater than the thickness of the dial 14.
  • the latter comprises cutouts 30 in which the feet 28 are engaged, to ensure the angular positioning of the dial 14.
  • the support 24 is housed in a recess 32 of the middle part, bearing by its periphery against the bottom 33 of the recess 32.
  • the support 24 further comprises a cutout 34, formed in one of the feet 28 and into which penetrates a boss 36 projecting from the side 37 of the recess 32 and integrally formed with the middle part.
  • a ring 38 is interposed between the crystal 20 and the feet 28, and forms a flange.
  • the support 24 is positioned and fixed, radially by the side 37 of the recess 32, axially by the bottom 34 and the ring 38 and angularly by the boss 36, while the dial 14 is positioned axially, with a slight clearance, by the support 24 and the ring 38, which together delimit an annular groove opening towards the axis of the needles.
  • the dial is also angularly positioned with a slight play by the feet 28, this feet therefore not preventing the radial deformation of the dial.
  • the support 24 could be made of soft magnetic material, thus playing the role of magnetic screen.
  • the support 24 thus serves as a means of positioning not only the dial, but also the movement 12 in the box 10. In this way, a casing circle is not necessary.
  • the watch includes a box 40 forming a plate in which different modules, schematically represented at 42, are fixed.
  • This box 40 includes a middle part 44, coming from a part with a bottom 45, as well as a crystal 46.
  • a dial 48 covers the modules 42. The time is displayed by means of hands 49.
  • the glass 46 and the middle part 44 are made of heat-weldable materials and are welded to one another. More specifically, the crystal 46 has a rib 50, engaged in a groove 52 of the middle part. During the welding operation, for example by ultrasound, the annular end portion of the rib 50 and the bottom of the groove 52 heat up and together form a zone 54 ensuring the rigid fixing of the glass 46 to the middle part 44. In this zone 54, the materials forming the crystal 46 and the middle part 44 are mixed with one another by the welding operation.
  • the middle part 44 has an annular recess 56 of depth and diameter slightly greater respectively than the thickness and the diameter of the dial. From the bottom of the recess 56 protrude two bosses 58, of height equal to the depth of the recess 56, and placed at noon and at 3 o'clock.
  • the recess 56 is covered by the glass 46 to thus define an annular groove 57 in which the dial 48 is trapped.
  • the dial 48 has two cutouts 60, each embracing one of the bosses 58 and extending radially inward of the dial. These cutouts 60, in cooperation with the bosses 58, angularly position the dial, but without preventing a radial deformation.
  • the dial 48 housed in the recess 56 is positioned axially by the bottom of the latter and the underside of the crystal 46.
  • the dial 48 can advantageously be fixed to the middle with a point of glue.
  • the middle part may have only a boss 58. This point of glue facilitates the assembly operations of the watch, without preventing radial deformation of the dial.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Claims (6)

  1. Uhr, umfassend ein Gehäuse (10, 40) mit einem Glas (20, 46), einem Gehäusering (18, 44), einem Boden (16, 45), einem Werk (12, 42), Zeiger (15, 49), einem Zifferblatt (14, 48) aus organischem Material und Mittel zum Positionieren des Zifferblatts in der Uhr, welche Positioniermittel eine erste und eine zweite Partie umfassen, wobei die erste Partie, die festliegt und axial, radial und winkelmäßig in dem Gehäuse (10, 40) positioniert ist, dazu bestimmt ist, die zweite Partie aufzunehmen, die mit dem Zifferblatt verbunden ist und seiner Peripherie zugeordnet ist, welche erste Partie eine Ringnut (39, 56) begrenzt, die sich in Richtung der Zeigerachse öffnet, welche erste Partie mindestens einen Winkelanschlag (28, 58) umfaßt, der in die Ringnut (39, 56) eingreift zum Sicherstellen der Axialpositionierung des Zifferblatts, welcher Winkelanschlag (28, 58) mit mindestens einem Gegenwinkelanschlag (30, 60) zusammenwirkt, der auf der zweiten Partie ausgearbeitet ist, dadurch gekennzeichnet, daß die erste Partie der Positioniermittel mit einem Organ zusammenwirkt, wie direkt das Glas (48) oder einem Ring, der beispielsweise ein Distanzstück (38) bildet zum Begrenzen der Ringnut (39, 56), die sich in Richtung der Zeigerachsen öffnet und in der frei die zweite Partie eingreift, die mit dem Zifferblatt verbunden ist, während der Winkelanschlag (20, 58) und der Winkelgegenanschlag (30, 60) dieser Positioniermittel mit Spiel zusammenwirken, welche Positioniermittel eine schwimmende Montage des Zifferblatts herstellen zum Ermöglichen und Absorbieren seiner Deformation mindestens in Radialrichtung, während sie gleichwohl in der Lage sind, es präzise in der Uhr zu positionieren, und zwar sowohl winkelmäßig als auch axial.
  2. Uhr nach Anspruch 1, dadurch gekennzeichnet, daß die erste Partie einen Zifferblattsupport (24) umfaßt, festgelegt in dem Gehäusering und gebildet von einer Metallfolie mit an der Peripherie angeordneten Pratzen (28), die sich in Axialrichtung zu dem Glas hin erstrecken und deren Höhe die Breite der Ringnut (39) begrenzt, wobei der Ring (38) in Anlage an den Pratzen ist, während er von dem Glas (20) gehalten wird, daß mindestens eine der Pratzen den Winkelanschlag bildet und daß das Zifferblatt mindestens einen Ausschnitt (30) aufweist, der einen mit dem Anschlag zusammenwirkenden Gegenanschlag bildet.
  3. Uhr nach Anspruch 1, dadurch gekennzeichnet, daß der Gehäusering (44) und das Glas (46) aus thermoschweißbarem Kunststoffmaterial bestehen und die Ringnut (56) begrenzen, und daß der Winkelanschlag von einem Vorsprung (58) gebildet ist, der aus dem Material des Gehäuserings (44) ausgebildet ist, während das Zifferblatt (48) einen Ausschnitt (60) aufweist, der den Gegenanschlag bildet, in welchen der Vorsprung eingreift.
  4. Uhr nach Anspruch 3, dadurch gekennzeichnet, daß das Zifferblatt (48) zwei Ausschnitte (60) aufweist, die winkelmäßig um 90° zueinander versetzt sind, und daß der Gehäusering (44) zwei Vorsprünge (58) aufweist, von denen jeweils einer mit einem der Ausschnitte (60) zusammenwirkt.
  5. Uhr nach Anspruch 3, dadurch gekennzeichnet, daß das Zifferblatt (14, 48) im übrigen an dem Gehäuse mittels eines Klebepunktes diametral gegenüber dem Vorsprung (58) verbunden ist.
  6. Uhr nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Oberseite des Zifferblatts (14, 48) mit einer Photographie abgedeckt ist.
EP88114344A 1987-09-03 1988-09-02 Uhr mit einem Zifferblatt Expired - Lifetime EP0306037B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH339087 1987-09-03
CH3390/87 1987-09-03

Publications (2)

Publication Number Publication Date
EP0306037A1 EP0306037A1 (de) 1989-03-08
EP0306037B1 true EP0306037B1 (de) 1993-03-31

Family

ID=4254940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114344A Expired - Lifetime EP0306037B1 (de) 1987-09-03 1988-09-02 Uhr mit einem Zifferblatt

Country Status (5)

Country Link
US (1) US4924452A (de)
EP (1) EP0306037B1 (de)
JP (1) JPS6484180A (de)
DE (1) DE3879817T2 (de)
HK (1) HK110296A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735881B1 (fr) * 1995-06-22 1997-08-29 Isa France Sa Cadran pour un instrument horaire, notamment pour une montre-bracelet, et procede de fabrication d'un tel cadran
TW316297B (de) * 1995-10-27 1997-09-21 Ebauchesfabrik Eta Ag
FR2791614B1 (fr) * 1999-03-29 2001-05-04 Sagem Tableau de bord simplifie
DE69939974D1 (de) * 1999-04-22 2009-01-08 Eta Sa Mft Horlogere Suisse Gegenseitige Befestigung eines Glases,eines Zifferblattes und eines Werkringes für eine Uhr
JP2003337185A (ja) * 2002-05-20 2003-11-28 Seiko Instruments Inc 携帯型電子機器
WO2005116781A1 (fr) * 2004-05-31 2005-12-08 Gang Hao Montre-reveil
JP5462038B2 (ja) * 2010-03-17 2014-04-02 セイコーインスツル株式会社 時計

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US554511A (en) * 1894-03-08 1896-02-11 George e
US1338745A (en) * 1918-06-21 1920-05-04 Robert H Ingersoll & Bros Dial and dial-fastener
FR1338863A (fr) * 1962-03-17 1963-10-04 Support pour cadran de pièces d'horlogerie
JPS5031022B1 (de) * 1970-06-09 1975-10-06
US3733809A (en) * 1971-01-25 1973-05-22 E Reiter Personalized photograph type watch
JPS4990611A (de) * 1972-12-29 1974-08-29
CH609825B (fr) * 1976-08-09 Ebauches Bettlach Sa Mouvement de montre dont le bati comprend une plaque de maintien.
JPS5759972Y2 (de) * 1977-09-19 1982-12-21
JPS5882180A (ja) * 1981-11-11 1983-05-17 Seiko Epson Corp 時計用表示部材の製造方法
CH644240B (fr) * 1981-12-02 Rado Montres Sa Piece d'horlogerie.
CH650894GA3 (de) * 1982-08-12 1985-08-30 Ebauchesfabrik Eta Ag

Also Published As

Publication number Publication date
HK110296A (en) 1996-07-05
US4924452A (en) 1990-05-08
DE3879817T2 (de) 1993-10-07
JPS6484180A (en) 1989-03-29
DE3879817D1 (de) 1993-05-06
EP0306037A1 (de) 1989-03-08

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