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
  • G04B19/10—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
• • 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
  • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
  • G04B39/004—Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass
  • G04B39/006—Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass out of wear resistant material, e.g. sapphire

Definitions

• the bezel or the middle part is generally provided with a flange which, on the one hand, serves as a support for the dial and, on the other hand, as a support for the crystal and which allows the passing these needles.
• a flange which, on the one hand, serves as a support for the dial and, on the other hand, as a support for the crystal and which allows the passing these needles.
• the present invention relates to the production of a watch case in particular formed of a simple middle part and not comprising a flange proper, which allows, on the one hand, an appreciable gain in material and, on the other hand, many and various decoration possibilities tion.
• a ring is fixed flat on the face of the middle part which serves both as a flange for the dial and as a support for the crystal.
• the face of the middle part may include a notch in which the ring is adjusted.
• the glass can be fixed flat on the ring.
• the internal face of the lens may include a notch in which the ring is adjusted or vice versa, the face that the ring may itself include a notch in which the lens is adjusted.
• Figs. 1 to 6 are cross-sectional views of the watch case according to the invention.
• the ring 2 is fixed flat on the face 4 of the middle part 1.
• the latter comprises a notch 5 in which the ring 2 is adjusted.
• the fixing of the ring 2 on the face 4 of the middle part 1 can therefore be carried out by gluing, crimping or by the action of the screw 6 as in FIGS. 1 to 3 or by any other means.
• the ring 2 forms with respect to the middle part 1 a kind of scope which serves both as a flange to the dial 7 and as a support for the crystal 3 and which allows the passage of the hands.
• Glass 3 can be fixed flat on ring 2 as in fig. 1 and 4. It may include, on its internal face, a notch 8 in which the ring 2 is adjusted as in FIGS. 2 and 5. Conversely, the face of the ring 2 may itself include a notch 9, as in FIGS. 3 and 6, in which the glass 3 is adjusted.
• the fixing of the glass 3 on the ring 2 can therefore be carried out by gluing or by crimping, these means not being exhaustive. We can even fix the glass 3 on the ring 2 by means of screws.
• the outer edge of the ring 2 as well as that of the crystal 3 in the embodiments according to FIGS. 1, 2, 4 and 5 can be bevelled.
• the watch case according to the invention has that of an appreciable gain in material for the manufacture of the middle part 1, which is not negligible when the latter is made of gold for example .
• the ring 2 can be made of any material, preferably sapphire, ceramic or mineral glass, provided that it has sufficient strength. Depending on the material used, the ring 2 may include an hour turn or decorative elements on one or other of its surfaces, for example by metallization.
• An hour turn or decorative elements can also be produced on the internal face of the glass 3.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Electric Clocks (AREA)
• Window Of Vehicle (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=4221310

Family Applications (1)

Country Status (4)

Cited By (1)

Citations (6)

• 1981
  • 1981-03-20 CH CH190481A patent/CH648178GA3/fr unknown
• 1982
  • 1982-03-22 WO PCT/CH1982/000044 patent/WO1982003281A1/fr not_active Application Discontinuation
  • 1982-03-22 EP EP82900785A patent/EP0074367A1/fr not_active Ceased
  • 1982-03-22 JP JP57500972A patent/JPS58500302A/ja active Pending

Patent Citations (6)

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