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CH313808A - Method of manufacturing a dial for a watch - Google Patents

Method of manufacturing a dial for a watch

Info

Publication number
CH313808A
CH313808A CH313808DA CH313808A CH 313808 A CH313808 A CH 313808A CH 313808D A CH313808D A CH 313808DA CH 313808 A CH313808 A CH 313808A
Authority
CH
Switzerland
Prior art keywords
dial
watch
manufacturing
signs
hour
Prior art date
Application number
Other languages
French (fr)
Inventor
Bourquard Humbert
Original Assignee
Bourquard S A
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 Bourquard S A filed Critical Bourquard S A
Publication of CH313808A publication Critical patent/CH313808A/en

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00Indicating the time by visual means
    • G04B19/06Dials
    • G04B19/10Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • GPHYSICS
    • G04HOROLOGY
    • G04DAPPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0043Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms
    • G04D3/0048Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms for dials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Punching Or Piercing (AREA)

Description

  

  <B>Procédé de</B>     fabrication   <B>d'un</B>     cadran        pour        montre       La présente invention a pour objet un pro  cédé de fabrication d'un cadran pour montre.  Ce procédé est caractérisé par le fait que, par  tant d'une ébauche en métal, en forme de pla  que, on frappe sur cette dernière des signes  horaires apparaissant en     relief    sur sa face an  térieure, puis,     également    par frappe, découpe  la matière située entre ces signes de façon à  former un tour d'heures ajouré.  



  Le dessin annexé représente, à titre  d'exemple, une montre munie d'un cadran ob  tenu par mise en     oeuvre    du procédé suivant  la présente invention.  



  La     fig.    1 est une vue en plan de cette  montre ; et  la     fig.    2 en est une coupe, à échelle agran  die, suivant la ligne     II-II    de la     fig.    1.  



  La montre représentée est une     montre-          squelette    dont le mouvement 1 est maintenu  suspendu par le cadran 2, fixé par sa périphé  rie dans la boîte 3. Le cadran présente un tour  d'heures ajouré 2a situé au-dessus d'une zone  annulaire libre se trouvant entre le mouvement  1 et la boîte 3.  



  Le cadran est obtenu de la manière sui-    vante : partant d'une ébauche circulaire plane,  les signes 2a sont tout d'abord frappés de ma  nière à apparaître en relief sur la face anté  rieure du cadran ; puis, par frappe également,  la matière située entre les signes 2a est décou  pée, produisant ainsi le tour d'heures ajouré.  Le cadran est ensuite bombé par frappe.  



  Bien entendu,     l'invention    n'est pas limitée  au cadran représenté, mais pourrait s'appli  quer à des cadrans dont les tours d'heures  pourraient avoir des formes très différentes. -



  <B> Method of </B> manufacturing <B> a </B> dial for a watch The present invention relates to a process for manufacturing a dial for a watch. This process is characterized by the fact that, by so much of a metal blank, in the form of a plate, hour signs appearing in relief on its anterior face are stamped on the latter, then, also by stamping, the material is cut. located between these signs so as to form an openwork hour circle.



  The appended drawing represents, by way of example, a watch provided with a dial obtained by implementing the method according to the present invention.



  Fig. 1 is a plan view of this watch; and fig. 2 is a section, on an enlarged scale, along the line II-II of FIG. 1.



  The watch shown is a skeleton watch, the movement 1 of which is kept suspended by the dial 2, fixed by its periphery in the case 3. The dial has a perforated hour circle 2a located above a free annular zone. located between movement 1 and box 3.



  The dial is obtained as follows: starting from a planar circular blank, the signs 2a are first of all stamped so as to appear in relief on the front face of the dial; then, also by striking, the material located between the signs 2a is cut off, thus producing the openwork hour circle. The dial is then domed by striking.



  Of course, the invention is not limited to the dial shown, but could be applied to dials the hour turns of which could have very different shapes. -

 

Claims (1)

REVENDICATION Procédé de fabrication d'un cadran pour montre, caractérisé par le fait que, partant d'une ébauche en métal, en forme de plaque, on frappe sur cette dernière des signes horai res apparaissant en relief sur sa face anté rieure puis, également par frappe, découpe la matière située entre ces signes de façon à for mer un tour d'heures ajouré. SOUS-REVENDICATION Procédé suivant la revendication, caracté risé par le fait qu'après le découpage, on bombe le cadran. CLAIM A method of manufacturing a dial for a watch, characterized by the fact that, starting from a metal blank, in the form of a plate, time signs are stamped on the latter appearing in relief on its front face and then, also by striking, cuts the material located between these signs so as to form an openwork hour circle. SUB-CLAIM Process according to claim, characterized in that after cutting, the dial is curved.
CH313808D 1954-03-05 1954-03-05 Method of manufacturing a dial for a watch CH313808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH313808T 1954-03-05

Publications (1)

Publication Number Publication Date
CH313808A true CH313808A (en) 1956-05-15

Family

ID=4495348

Family Applications (1)

Application Number Title Priority Date Filing Date
CH313808D CH313808A (en) 1954-03-05 1954-03-05 Method of manufacturing a dial for a watch

Country Status (1)

Country Link
CH (1) CH313808A (en)

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