EP0257453B1 - Uhrengehäuse - Google Patents

Uhrengehäuse Download PDF

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Publication number
EP0257453B1
EP0257453B1 EP87111672A EP87111672A EP0257453B1 EP 0257453 B1 EP0257453 B1 EP 0257453B1 EP 87111672 A EP87111672 A EP 87111672A EP 87111672 A EP87111672 A EP 87111672A EP 0257453 B1 EP0257453 B1 EP 0257453B1
Authority
EP
European Patent Office
Prior art keywords
dial
cup
case
bed
cap
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
EP87111672A
Other languages
English (en)
French (fr)
Other versions
EP0257453A1 (de
Inventor
Raimondo Brenni
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.)
Tissot SA
Original Assignee
Tissot SA
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 Tissot SA filed Critical Tissot SA
Publication of EP0257453A1 publication Critical patent/EP0257453A1/de
Application granted granted Critical
Publication of EP0257453B1 publication Critical patent/EP0257453B1/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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached ornaments or amusement apparatus
    • G04B47/042—Fastening of jewels and the like
    • 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
    • G04B19/10—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • G04B19/103—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial attached or inlaid numbers

Definitions

  • the present invention relates to watch cases of the type comprising a middle part made in one piece with a dial, this carry-dial assembly being made of a natural mineral material.
  • An object of the present invention is to produce a box as defined above, with which a decorative assembly is associated.
  • said dial on the side of its visible face intended to display the hours and minutes, comprises a blind housing in which is freely engaged a cap in which is crimped and held firmly in place an element having the shape and appearance of a cut stone, this cap being glued under the bottom against the corresponding bottom of this housing.
  • watches already known are provided with a decorative assembly with a cut stone, either in the middle or in the dial.
  • Document JP-A-58 66 087 describes a process allowing the affixing of a decorative element made of inorganic material, such as ceramic or glass, on a watch case made of a "superplastic" alloy. This process consists in depositing a thin metallic film on the decorative element, placing between two matrices the decorative element superimposed on the box, heating the assembly to make the metallic film and the box plastic, then applying pressure on the two dies to force the decorative element into the material of the box by inclusion.
  • Document JP-A-60 80 784 describes a method of fixing an uncut decorative element to a middle part, this method also consisting in depositing by evaporation a layer of metal on the decorative element, then in welding this layer of metal by a laser beam which is oriented in the element itself and which carries the layer of molten metal.
  • Document CH-A-260 123 relates to a dial provided with cut stones fixed by means of a ring driven from below the dial. Hunting makes it impossible to apply this device to a dial made of natural mineral material.
  • document CH-A-609 517G describes a watch with stones mounted on envelopes, and mobile in an annular housing
  • document DE-A-3 307 817 describes a method for setting stones in a dial made of metal.
  • the document FR-A-2 437 024 relates to an extra-flat watch comprising a bezel in which rectilinear slides are formed constituting housings for receiving an ice cream, the bezel made of material, firstly, with middle of said watch and, on the other hand, with a concave dial made of metal, such as for example gold.
  • the cap which is engaged according to the invention claimed in the blind housing of the dial holds the element it contains perfectly in place and it does not need to be forcibly engaged in the side wall of its housing, at the risk to blow up the dial.
  • the border formed by the cap between the decorative element and the material of the dial further emphasizes the desired contrast.
  • Another object of the present invention is to minimize the strength of the box.
  • the concavity of the dial solidifies the box-dial assembly and facilitates machining.
  • the edge of the dial rises to the level of the notch of ice.
  • the edge of the dial serves as a flange. This therefore results in a reduced space for the passage of the minute hand. It is therefore essential that the element takes a minimum of space in height. This is why the cap is embedded in the housing.
  • the hole although relatively deep, does not affect the strength of the assembly. This is probably due to the fact that it is in the immediate vicinity of the strongest part: the middle part.
  • the depth of the housing of the cap is much less than the thickness of the dial; it is approximately equal to the height of the cylinder head of said element, which is relatively small.
  • the decorative element which acts as a time sign, facilitates the reading of the time, without altering the aesthetics of the watch.
  • the middle 1, shown in Figure 1 is made of a natural mineral material, such as granite. It has a bore 2 for the passage of a time-setting rod (not shown) of the watch, and a notch of ice 3, intended to receive a flat sapphire crystal or tempered mineral glass.
  • This middle part 1 came from one-piece production with the dial 4 of the watch.
  • This middle part / dial defines a housing 5 intended to receive the movement of the watch (not shown), as well as, in its periphery, a metal ring (not shown) which, glued to the middle part, increases its solidity.
  • the dial 4 has a central opening 6 for the passage of the axes (not shown) of the hands (not shown) of the watch.
  • the visible face 7 of the dial 4 is concave, which gives the stability of the middle / dial assembly and facilitates machining.
  • the edge of the face 7 joins the bottom of the notch of ice 3 and thus acts as a flange.
  • a blind circular cylindrical housing 8 with a flat bottom 9 is finally formed in the face 7, at the periphery of the dial 4.
  • a decorative assembly 10, representing the time sign "3 h.” is mounted in the housing 8.
  • the assembly 10 is shown in detail in Figures 2 and 3. It consists essentially of an element 11 of transparent material having the size of the diamonds, or any other size offering an attractive aesthetic appearance.
  • This element 11 includes thus a cylinder head 12, in which several facets 13 are cut, and a crown 14 which is also faceted and surmounted by a table 15.
  • the element 11 will preferably consist of a piece of glass, crystal, transparent plastic or rhinestones. None however excludes the use of a brilliant.
  • This element 11 is housed in a cap 16, the bottom 17 is flat and the side wall 18 circular cylindrical.
  • the upper edge 19 of the wall 18 is folded down at 19a over the sheet 20 of the element 11. It thus constitutes a crimping of the latter in the cap 16, which therefore holds it firmly in place.
  • the cap 16 is preferably made of brass.
  • the visible face of the edge 19a is polished and, preferably, gold or silver to create a contrast with the granite of the face 7 of the dial 4.
  • This cap could also be made of gold or silver.
  • the assembly 10 is fixed to the dial 4 by bonding the bottom 17 of the cap 16 to the bottom 9 of the housing 8. To avoid internal tensions in the dial 4, the diameter of the cap 16 will be slightly less than that of the housing 8.
  • the cap 16 is fully embedded in the housing 8. It is therefore at most the crown 14 of the element 11 which projects from the face 7 of the dial 4. There therefore remains a space amply sufficient between the table 15 of the element 11 and the crystal (not shown) of the watch for the passage of the hands.
  • the element 11 is made of a base material, it is possible to obtain a luster which somewhat resembles that of the diamond by polishing the internal faces 21 of the cap 16 to the point of reflecting the light passing through the element 11.
  • the inside of the cap 16 is advantageously conical in shape, the opening of the cone being chosen so that its surface is substantially parallel to the facets 13. This surface can even be coated with a colored material.
  • the facets 13 of the cylinder head 12 could also be provided with a reflective layer, colored or not.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)
  • Electric Clocks (AREA)
  • Telephone Function (AREA)
  • Packages (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (8)

  1. Uhrgehäuse der Bauart mit einem Mittelteil (1) sowie einem mit dem Mittelteil einstückig gefertigten Zifferblatt (4), wobei die Baugruppe Mittelteil-Zifferblatt (1, 4) aus einem natürlichen mineralischen Material wie beispielsweise Granit hergestellt ist, dadurch gekennzeichnet, dass das Zifferblatt auf seiner sichtbaren zum Visualisieren der Stunden und Minuten bestimmten Seite (7) eine Sackausnehmung (8) aufweist, in die frei eine Kalotte (16) eingefügt ist, in der ein Element (11) gefasst und fest gehalten ist, das die Form und das Aussehen eines geschliffenen Steines besitzt, welche Kalotte (16) mit ihrem Boden (17) gegen den entsprechenden Boden (9) der Ausnehmung (8) geklebt ist.
  2. Gehäuse nach Anspruch 1, dadurch gekennzeichnet, dass die sichtbare Seite des Zifferblatts (4) konkav ist, dass die Ausnehmung (8) sich and der Peripherie des Zifferblatts (4) befindet und dass die Kalotte (16) in die Ausnehmung (8) versenkt ist.
  3. Gehäuse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Element (11) Diamantschliff aufweist und dass die Kalotte (16) eine kreiszylindrische Seitenwandung (18) aufweist, deren Oberkante (19) auf die Rondiste (20) des Elements (11) gebördelt ist, um die Fassung des letzteren zu bilden.
  4. Gehäuse nach Anspruch 3, dadurch gekennzeichnet, dass höchstens nur die Krone (14) des Elements (11) über die sichtbare Seite (7) des Zifferblatts (4) hinausragt.
  5. Gehäuse nach Anspruch 4, dadurch gekennzeichnet, dass die Innenseiten (21) der Kalotte (16) reflektierend sind.
  6. Gehäuse nach Anspruch 5, dadurch gekennzeichnet, dass die reflektierenden Seiten (21) der Kalotte (16) mit Farbmaterial beschichtet sind.
  7. Gehäuse nach Anspruch 4, dadurch gekennzeichnet, dass die Facetten (13) des Bodens (12) des Elements (11) mit einem farbigen reflektierenden Material versehen sind.
  8. Gehäuse nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die aus dem Element (11) und der Kalotte (16) gebildete Baugruppe (10) die Stelle des Stundenzeichnes einnimmt.
EP87111672A 1986-08-25 1987-08-12 Uhrengehäuse Expired - Lifetime EP0257453B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3401/86 1986-08-25
CH340186A CH665079GA3 (de) 1986-08-25 1986-08-25

Publications (2)

Publication Number Publication Date
EP0257453A1 EP0257453A1 (de) 1988-03-02
EP0257453B1 true EP0257453B1 (de) 1991-02-27

Family

ID=4255186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111672A Expired - Lifetime EP0257453B1 (de) 1986-08-25 1987-08-12 Uhrengehäuse

Country Status (6)

Country Link
EP (1) EP0257453B1 (de)
CH (1) CH665079GA3 (de)
DE (1) DE3768178D1 (de)
ES (1) ES2021652B3 (de)
HK (1) HK65094A (de)
SG (1) SG23694G (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103376730A (zh) * 2012-04-20 2013-10-30 Eta瑞士钟表制造股份有限公司 用于钟表的表盘

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT226577Z2 (it) * 1992-05-14 1997-06-24 Consolo Giovanni Battista Lancette perfezionate per orologi particolarmente studiate in modo da consentire l'incastonatura di brillantini o di altre pietre preziose o non di svariate dimensioni
EP3378346B1 (de) 2017-03-21 2023-01-18 Omega SA Stein und sein herstellungsverfahren

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH43204A (fr) * 1908-03-23 1909-04-16 Annibal Galla Perfectionnement aux fonds de boîtes des montre comportant au moins une pierre qui y est sertie
CH260123A (fr) * 1947-06-04 1949-02-28 Beyeler & Cie G Cadran de pièce d'horlogerie.
CH609517GA3 (en) * 1976-07-20 1979-03-15 Watch
CH620081B (fr) * 1978-09-21 Ebauches Sa Montre electromecanique extra-plate.
JPS5866087A (ja) * 1981-10-15 1983-04-20 Seiko Instr & Electronics Ltd 腕時計ケ−スの表示物形成方法
DE3307817A1 (de) * 1982-03-11 1983-09-22 Beyeler & Cie S.A., 1205 Genève Verfahren zur herstellung eines mit mindestens einem stein versehenen zifferblattes, insbesondere fuer die uhrenindustrie, sowie entsprechend diesem verfahren hergestelltes zifferblatt
JPS6080784A (ja) * 1983-10-08 1985-05-08 Citizen Watch Co Ltd 装飾品の固定方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103376730A (zh) * 2012-04-20 2013-10-30 Eta瑞士钟表制造股份有限公司 用于钟表的表盘

Also Published As

Publication number Publication date
CH665079GA3 (de) 1988-04-29
DE3768178D1 (de) 1991-04-04
SG23694G (en) 1994-06-10
ES2021652B3 (es) 1991-11-16
EP0257453A1 (de) 1988-03-02
HK65094A (en) 1994-07-15

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