EP0064951A1 - Uhrgehäuse - Google Patents

Uhrgehäuse Download PDF

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Publication number
EP0064951A1
EP0064951A1 EP82810187A EP82810187A EP0064951A1 EP 0064951 A1 EP0064951 A1 EP 0064951A1 EP 82810187 A EP82810187 A EP 82810187A EP 82810187 A EP82810187 A EP 82810187A EP 0064951 A1 EP0064951 A1 EP 0064951A1
Authority
EP
European Patent Office
Prior art keywords
frame
glass
box according
sockets
under
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.)
Granted
Application number
EP82810187A
Other languages
English (en)
French (fr)
Other versions
EP0064951B1 (de
Inventor
Marc Lederrey
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.)
Rado Uhren AG
Original Assignee
Rado Uhren AG
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 Rado Uhren AG filed Critical Rado Uhren AG
Publication of EP0064951A1 publication Critical patent/EP0064951A1/de
Application granted granted Critical
Publication of EP0064951B1 publication Critical patent/EP0064951B1/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
    • 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
    • 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
    • G04B37/0008—Cases for pocket watches and wrist watches

Definitions

  • Known watch cases of the type defined by the preamble of claim 1, are intended exclusively for watches with digital display.
  • the parts, in which the glass fixing screws are engaged, are constituted by tapped feet, which came from one-piece production with a frame in which is engaged the liquid crystal capsule of the display device (JP - A - 55 70 770 and US - A - 4 281 406).
  • a frame provided with feet is not a piece of simple shape and very inexpensive manufacture.
  • it is necessary to make a different frame not only for each shape and size of box. but also for each modification of the location of said feet.
  • the zone of the glass, which remains transparent inside the said assembly is relatively large and can therefore easily reveal the members of an analog display.
  • the ornamental elements, which constitute the visible face of the box, form a one-piece assembly with the glass and can therefore be protected by it, the range of aspects which it is possible to give to the box, is greatly expanded.
  • the frame defined by this characteristic which is a flat, relatively thin piece, can be manufactured at once in large series, with the housings of the sockets, by cutting it from a strip of material.
  • the sockets which always have the same shape, regardless of the dimensions and shape of the box, can also be turned in large series.
  • the bonding joining said frame to the glass has, compared to mechanical fastenings by fitting parts one into the other, the advantage not only of admitting wider tolerances, but also of avoiding the birth of internal tensions in the glass, which can compromise its resistance, especially if the latter is made of sapphire.
  • the special embodiments defined by claim 2 have the advantage of making it possible to manufacture large series of identical case middle pieces for a given movement caliber and shape, since the assemblies secured to the glass, which correspond to this movement caliber and this box shape, all have the same geometric shape and it is therefore possible to attach any of them to one of these middle parts.
  • those defined by claim 10 have the advantage of comprising a shield which protects the box from any deterioration produced by foreign bodies with which it may accidentally come into contact.
  • the box according to this embodiment has the general shape of a rectangle whose angles are truncated (Fig. 3).
  • the upper face of the box, which, when worn, is only visible, is completely covered by the glass 1, which is made of sapphire and the edges of which are bevelled.
  • a flat frame 2, relatively min this, is glued under the periphery of glass 1. It is made of precious or semi-precious stone (cat's eye, lapis lazuli, aquamarine, tourmaline, opal, amethyst, malachite, jasper, coral, etc. ).
  • the assembly formed by the two frames 2, 3 and the sockets 5 is itself integral with the glass 1 and forms with it a single block to be handled during assembly of the box.
  • the adhesives currently found on the market make it possible to join the parts described in an indissoluble manner and to achieve adhesions of several kgp / mm 2 .
  • the sockets 5 are tapped to allow the assembly secured to the glass 1 to the middle part 8 of the box using screws 9, engaged in these sockets from the "bottom" side of the box. On this side, the screws 9 could enter directly into the middle. In the embodiment shown, these screws 9 are however used to attach at the same time an independent base 10 to the middle part. This base 10 and its attachment to the middle part are described in detail in patent application 2858 / 81-8 .
  • the bottom 10 is composed of a flat metal part 11 and a thin layer of flexible material 12, lining the internal face of the part 11, to which it strongly adheres.
  • Layer 12 is made of an elastomer, for example that which is marketed under the brand "VITON”, which is die-cast in part 11 so as to form what those skilled in the art call a "metallic bond". tal / elastomer ".
  • the part 11 covers the entire underside of the middle part 8.
  • this support of two metal parts one on the other has the advantage of limiting the degree of compression of the layer 12. That -this has, in fact, a rim at its periphery, higher than the edges 13 of the part 11 and which is crushed against the underside of the middle part 8, in the position shown in Fig. 1, so as to establish the seal of the joint between the middle part and the back, whatever shape these parts have.
  • the layer 12 is still produced by, on the one hand, with two studs 14, which take the place of the usual fixing screws of the movement 15 in the middle 8 and fulfill the role of these screws, and, on the other hand, with four pillars 16, which plate the parts of the dial 17 extending beyond the movement 15 against a shoulder 18 of the middle part 8.
  • the layer 12 could be interrupted and leave the part 11 of the bottom 10 bare, so as to make room for the thickest parts of the movement 15, for example the battery, in an electronic watch.
  • the middle part 8 is drilled right through, however with different diameters.
  • these holes of the middle part 8 are adjusted to the sockets 5, so that the block comprising the glass 1 occupies a very precise position on the middle part 8, while in their lower part 20, they are just a little larger than the screws 9, so that the middle part 8 compresses the rim described above of the layer 12 all around the screws 9 and presses the material of this rim against a smooth and polished part of the said screws.
  • a lining 22 which follows the internal edge of the frames 2, 3 and the height of which, in its natural state, is slightly greater than the thickness of the two frames 2, 3.
  • the lining 22 is therefore compressed axially between the glass 1 and the projection 23 of the middle part 8, which takes the place of the flange.
  • a thin metallization layer 30 is deposited under the zone of the glass situated above the trim 22 and the inner edge of the frame 2 to camouflage this trim and any irregularities of the said edge of the frame 2, while adding an additional decoration to the visible face of the box.
  • the frames 2, 3 could be widened inwards, up to the internal edge of the flange 23 and the gasket placed under these frames, in a groove the middle.
  • the glass 1 would be released from any internal tension, which is desirable, in particular in the case where it is constituted by a sapphire.
  • the manufacture of the three independent parts of the box described is simple. As the frames fixed under the glass 1 are flat, their machining is easy. Their attachment to the glass with the sockets 5, by gluing, does not raise any problem. For its part, the machining of the middle part 8 is also very simple. Only its external lateral face 24 must be subjected to fine termination operations, since it is the only visible face of the middle part. Apart from this face, the areas of a certain extension of the box, which are visible, are protected by the sapphire crystal. As for the edge of the frame 3, the thickness of which is less than half a millimeter, it can be knurled and thus constitute an original decorative element of the box. Because of its very simple shape, the bottom 10 is also easy to manufacture.
  • the box described is of an assembly could not be faster, since it suffices to thread the holes 19 of the middle part 8 on the sockets 5, to place the bottom on the middle part and to tension the screw 9.
  • the assembly of the movement 15 in this box does not require any particular operation, it suffices to deposit it in the middle part 8, where the studs 14 and the pillars 16 of the bottom automatically hold it in place, as soon as the box is closed by the screws 9.
  • FIG. 1 shows a variant of the embodiment described, which differs from it only in the nature of the elements fixed under the glass 1.
  • a thin metallization layer 31 is deposited by evaporation under vacuum over the entire peripheral part from the underside of glass 1, from the edge of it, jus that above the seal 22.
  • it is this metallized, opaque layer, which gives its appearance to the face of the case surrounding the dial of the watch.
  • a single frame 25 is here glued under the glass, over said metallization layer.
  • the frame 25 has a thickness equal to that of the assembly of the two frames 2, 3. It is made of base metal and the sockets 5 are welded into housings 26 formed in the underside of the frame 25.
  • the frame 25 could also be widened inwards, up to the internal edge of the flange 23 and the seal 22 be placed between it and the middle part 8, in a groove of the latter.
  • Fig. 2 shows another variant of the embodiment described above.
  • the glass 27 no longer covers the entire upper face of the box. It is only glued to the internal zone of the upper face of a frame 28, made of hard metal. The internal edge of the frame 28 is flush with that of the flange 23 formed on the middle part 8, which is the same as in FIG. 1.
  • a frame 3, identical to that of the embodiment described above, is glued under the frame 28. It traps the collar 6 of the sockets 5, as described with reference to the left-hand part of FIG. 1, so that these are secured to the glass 27.
  • a gasket 29, the height of which is slightly greater than the thickness of the frame 3, is arranged between the frame 28 and the middle part 8.
  • the space reserved for the hands between the dial 17 and the glass 27 is a little higher than in FIG. 1, due to the thickness of the hard metal frame 28. This makes it possible to line the dial 17 with hour signs in high relief.
  • Fig. 3 shows the outline of the middle part 8 of the embodiment described above, seen from below, and it shows the locations 21 of the fixing screws 9 of the base 10 and of the glass.
  • a round bottom 32 can also be fixed to the middle part at the same time as the glass, using screws engaged in the holes 33.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)
EP19820810187 1981-05-01 1982-05-03 Uhrgehäuse Expired - Lifetime EP0064951B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH285981 1981-05-01
CH2859/81 1981-05-01

Publications (2)

Publication Number Publication Date
EP0064951A1 true EP0064951A1 (de) 1982-11-17
EP0064951B1 EP0064951B1 (de) 1994-03-02

Family

ID=4243185

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820810187 Expired - Lifetime EP0064951B1 (de) 1981-05-01 1982-05-03 Uhrgehäuse

Country Status (5)

Country Link
EP (1) EP0064951B1 (de)
JP (1) JPS58500625A (de)
DE (1) DE3280456T2 (de)
HK (1) HK1000119A1 (de)
WO (1) WO1982004135A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123330A (en) * 1982-05-06 1984-02-01 Citizen Watch Co Ltd Method of making a watchcase
EP0327829A1 (de) * 1988-02-08 1989-08-16 Georges Claude Wasserdichtes Uhrengehäuse
EP1241541A1 (de) * 2001-03-15 2002-09-18 Eta SA Fabriques d'Ebauches Mittels des Glasreifes zusammengebautes Uhrengehäuse
US6666576B2 (en) 2001-03-15 2003-12-23 Eta Sa Fabriques D'ebauches Watch case assembled via the bezel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE808340C (de) * 1949-06-23 1951-07-12 Guenther Fischer Kompensations-Uhrgehaeuse
FR2397668A1 (fr) * 1977-07-15 1979-02-09 Klingenberg Hans Boite de montre
JPS5570770A (en) * 1978-11-22 1980-05-28 Citizen Watch Co Ltd Case construction for digital display wrist watch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE808340C (de) * 1949-06-23 1951-07-12 Guenther Fischer Kompensations-Uhrgehaeuse
FR2397668A1 (fr) * 1977-07-15 1979-02-09 Klingenberg Hans Boite de montre
JPS5570770A (en) * 1978-11-22 1980-05-28 Citizen Watch Co Ltd Case construction for digital display wrist watch
US4281406A (en) * 1978-11-22 1981-07-28 Citizen Watch Co., Ltd. Water-proof case for digital electronic timepieces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BULLETIN ANNUEL DE LA SOCIETE SUISSE DE CHRONOMETRIE, vol. 9, no. 1, 1980, Neuchatel, CH. *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123330A (en) * 1982-05-06 1984-02-01 Citizen Watch Co Ltd Method of making a watchcase
EP0327829A1 (de) * 1988-02-08 1989-08-16 Georges Claude Wasserdichtes Uhrengehäuse
CH674292GA3 (de) * 1988-02-08 1990-05-31
US4967402A (en) * 1988-02-08 1990-10-30 Georges Claude Sealed watchcase
EP1241541A1 (de) * 2001-03-15 2002-09-18 Eta SA Fabriques d'Ebauches Mittels des Glasreifes zusammengebautes Uhrengehäuse
US6666576B2 (en) 2001-03-15 2003-12-23 Eta Sa Fabriques D'ebauches Watch case assembled via the bezel

Also Published As

Publication number Publication date
EP0064951B1 (de) 1994-03-02
DE3280456T2 (de) 1995-01-12
DE3280456D1 (de) 1994-09-22
WO1982004135A1 (fr) 1982-11-25
JPS58500625A (ja) 1983-04-21
HK1000119A1 (en) 1997-12-05

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