EP0277510B1 - Uhrengehäuse mit einem Mittelteil, einem Glas und Mittel zur Befestigung des Glases an dem Mittelteil - Google Patents

Uhrengehäuse mit einem Mittelteil, einem Glas und Mittel zur Befestigung des Glases an dem Mittelteil Download PDF

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Publication number
EP0277510B1
EP0277510B1 EP88100421A EP88100421A EP0277510B1 EP 0277510 B1 EP0277510 B1 EP 0277510B1 EP 88100421 A EP88100421 A EP 88100421A EP 88100421 A EP88100421 A EP 88100421A EP 0277510 B1 EP0277510 B1 EP 0277510B1
Authority
EP
European Patent Office
Prior art keywords
watchcase
set forth
crystal
glass
unit
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
EP88100421A
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English (en)
French (fr)
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EP0277510A1 (de
Inventor
Paul Gogniat
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 EP0277510A1 publication Critical patent/EP0277510A1/de
Application granted granted Critical
Publication of EP0277510B1 publication Critical patent/EP0277510B1/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
    • G04B39/02—Sealing crystals or glasses
    • 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
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • G04B37/225—Non-metallic cases
    • 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
    • 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

Definitions

  • the invention relates to a watch case comprising a first unit formed by a middle part and a bottom together defining a housing intended to receive a movement and a second unit formed by a crystal and means for connecting the crystal to the first unit.
  • the connecting means consist of a vulcanizable elastomer gasket interposed between the crystal and the middle part.
  • This connection of the glass to the middle part cannot be dismantled and has certain drawbacks if the glass breaks, since it is then necessary to unsolder the remaining pieces of the glass, remove the remainder of the seal, then reweld a new glass with a new seal.
  • These operations are delicate and time consuming, and moreover require specific equipment to carry out the vulcanization of the joint, the latter being carried out at relatively high temperatures.
  • Swiss patent 649,435 also describes a case, the middle of which is made of metal, and the crystal, made of mineral material, has a metallic layer on the periphery of its inner face. These two parts are assembled to each other by welding adhering, on the one hand, to the metal layer and, on the other hand, to the box. This type of assembly makes it possible to obtain a solid and tight fixing between the box and the glass.
  • it poses difficult problems in terms of after-sales service Indeed, if there is a break in the ice, it is again necessary to unsolder the remaining pieces of the ice, then to resolder a new ice. This operation is delicate, because it is essential in this case that the weld does not extend beyond the space between the glass and the middle part.
  • the object of the present invention is to remedy the drawbacks of the above-mentioned prior art by providing a box in which after-sales service is greatly simplified, while reducing the cost of manufacturing the watch.
  • the second unit further comprises a plastic support ring connected to the glass in a non-removable manner and assembled with the first unit by removable means.
  • document FR-A-908 125 describes a watch case comprising a middle part, a crystal and a back, and means for attaching the crystal to the middle part include tabs welded or screwed to the middle part. Consequently, this document does not provide any solution to the problem posed because in the event of glass breakage, it is necessary to dismantle the welded or screwed connections which also requires a great deal of time.
  • the watch shown in FIG. 1a comprises a box comprising a middle part 10, a crystal 12 and a base 14 which define a housing inside which is a movement 16 carrying display means 18, namely a dial and needles.
  • This watch also comprises means for fixing the crystal to the middle, constituted by staples 20.
  • the middle part 10 comprises an external support part 21, of annular shape, and an internal ring 22, surrounded by the external part 21, both of rectangular section.
  • the external support part 21 is made of plastic and defines the lateral faces of the watch. It cooperates with the fixing means in a manner which will be specified below.
  • the bottom 14 and the inner ring 22, both made of stainless steel, are either welded to each other, or made in one piece.
  • the ring 22 is provided with a shoulder 24 on its inner flanks and a boss 26 on its outer flanks.
  • the upper end of the ring 22, which is close to the crystal 12, has a groove 28.
  • the shoulder 24 serves to support the movement 16 and allows it to be fixed in the middle part. More precisely, this movement is clamped between the glass 12 and the shoulder 24 by means of a flange 30, the external dimensions of which are equal to the internal dimensions of the ring 22, and the thickness of which is equal to the distance between the crystal and the dial worn by the movement 16.
  • the boss 26 cooperates with a groove 32 which the internal flanks of the support piece 21 comprise, thus joining, by a notched assembly, the piece 21 and the ring 22.
  • the groove 28 that the ring 22 comprises makes it possible to house a seal 34. This seal is further guided by the outer sides of the flange 30.
  • the means for fixing the crystal to the middle part are constituted by staples 20. These are fixed to the four corners of the watch and are advantageously made by means of a stainless steel wire. As can be seen in FIG. 1b, these staples have a general shape of stirrup, with a base 35 bearing on the glass and two lateral branches each comprising three segments. The first segments 36 extend over the edge of the crystal and part of the middle part, the second segments 38 converge towards one another and form respectively with the first an obtuse angle, and the third segments 40, in contact with one the other, extend parallel to the first segments 36.
  • the latter comprises, in the external support part 21, a first hole 42 which opens on the bottom side, and two oblique holes 44 which extend from the sides of the middle part up to the inside hole 42.
  • the segments 38 of the clips 20 are each housed in an oblique hole 44, while the two end segments 40 are engaged in clamping in the hole 42.
  • the glass 12 is placed on the part 21 and the branches of each clip 20, initially in the shape of a U, are engaged in the holes 44 until that their ends, having joined in the hole 42, protrude from the bottom of the part 21. A traction is then exerted on these ends so as to ensure proper application of the clip on the ice. When this is done, it suffices to cut the ends of the clip flush with the hole 42 to obtain the structure of FIG. 1b.
  • the assembly thus formed can then be made integral with the internal ring 22 by virtue of the notched assembly which the boss 26 of the ring 22 and the groove 32 of the part 21 allow.
  • segments 40 of the staples 20 may have grooves on their surfaces in contact with the middle part which allow them to be better held in place.
  • the middle 10 and the glass 12 in the watch shown in section in Figure 2, we find the middle 10 and the glass 12, superimposed and aligned edge to edge, the bottom 14, the movement 16 and the display means 18.
  • the means for fixing the crystal to the middle part include rivets 48, made of stainless steel, each consisting of a head 50, a cylindrical body 52 and a ring 54, fixed to the end of body 52.
  • a single rivet is shown in the drawing.
  • the body 52 and each rivet 48 is housed in coaxial holes 56 and 58 which respectively pass through the glass 12 and the support part 21. Its free end is slightly concave and has a rivet forming a slight external rim which ensures the locking of the ring 54.
  • the glass 12 is placed on the part 21 so as to match the holes 56 and 58.
  • the body 52 of the rivets 48 is then introduced into these holes and the rings 54 placed at their ends.
  • the actual fixing is carried out by riveting the end of the body 52, the external rim of which comes to bear on the ring 54.
  • a ring 59 of flexible material can advantageously be inserted between the head 50 and the crystal 12. The assembly thus formed is then fixed to the notch on the internal part 21 of the middle part.
  • Figures 3a and 3b show another alternative embodiment in which only the glass 12 and the external support part 21 of the middle part are found.
  • the base, the movement and the internal part of the middle part, which do not have been drawn, may be similar to those shown in Figures 1a and 2.
  • the glass 12 is fixed to the part 21 by means of rivets 59 which are made of plastic.
  • a rivet is shown in the pre-assembly position in Figure 3a and after assembly in Figure 3b.
  • Each rivet 59 has a cylindrical body 60, the upper end of which is extended by a set of claws 62 arranged in a crown and each provided with a shoulder 66 which is intended to bear against the glass 12, and with a groove 68, inside the crown, into which engages the edge of a decorative element 70, such as a stone.
  • the lower end of each rivet has two rows of barbs 64 ′ and 64 ⁇ .
  • the rivets 59 each take place in holes 72 and 74 formed respectively in the crystal 12 and the external part 21 of the middle part.
  • the decorative element 70 can be made of any material, for example sapphire, ruby, or any other precious, semi-precious or simply decorative material.
  • the watch case shown in FIG. 4 has the same essential elements as those of FIGS. 1a and 2, namely a middle part 10, a crystal 12, a base 14, a movement 16 and display means 18.
  • the middle part 10 comprises also an external support piece 21 made of plastic and an internal ring 22, the latter being in one piece with the bottom 14.
  • This box differs from the boxes described and shown above by the fact that the glass 12 is curved, having a structure of either cylindrical type, or spherical type.
  • the means for assembling the crystal to the middle part are here also constituted by rivets, one of which, bearing the reference 78, is shown in the drawing.
  • These rivets made of stainless steel, have a cylindrical body 80, the lower end of which ends in barbs 82, while its upper end is fixed to the glass by means of solder 84. To facilitate this assembly by soldering, it goes from It should be understood that the lower face of the crystal must be coated with a layer of metal 86.
  • the support part 21 of this watch has blind holes 88 of section smaller than that of the body 80 and intended to each receive a rivet 78.
  • the non-removable assembly constituted by the crystal and the external part of the middle part is relatively inexpensive because, not only, it can be assembled automatically, but also and above all, the price of the plastic outer part and the means of assembling the two elements is very compared to that of ice.
  • this assembly is made integral with the rest of the watch by a simple notch system, its replacement in the event of breakage of the glass requires a minimum of intervention on the part of the repairer.
  • the means for fixing the glass to the plastic support part may have come integrally with the latter, in the form of pins engaging in beveled cutouts in the glass. The attachment is then made by deformation of the pins which bear on the bevels.
  • the glass which has a spherical structure, is aligned edge to edge with the bottom. In this way, the middle part is entirely hidden. However, it retains its essential function, that is, securing the crystal and the back to the watch.
  • the middle could also have variants. It could thus be constituted by the single support part, the bottom being able to be fixed to bayonet for example.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Clocks (AREA)
  • Adornments (AREA)
  • Electromechanical Clocks (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Claims (14)

1. Uhrgehäuse, umfassend eine von einem Gehäusering (10) und einem Boden (14), die gemeinsam eine zur Aufnahme eines Uhrwerks bestimmte Ausnehmung begrenzen, gebildete erste Einheit und eine von einem Uhrglas (12) gebildete zweite Einheit sowie Verbindungsmittel (20, 48, 59, 78) des Uhrglases an der ersten Einheit, dadurch gekennzeichnet, daß die zweite Einheit ferner einen Tragring (21) aus Kunststoffmaterial umfaßt, der mit dem Uhrglas (12) unlösbar verbunden ist und mit der ersten Einheit durch demontierbare Mittel (26, 32) zusammengefügt ist.
2. Uhrgehäuse nach Anspruch 1, dadurch gekennzeichnet, daß der Tragring (21) aus Kunststoffmaterial auf der ersten Einheit aufgerastet ist.
3. Uhrgehäuse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die erste Einheit ein Innenteil (22) aufweist, das eine Halterung für das Uhrwerk (16) bildet.
4. Uhrgehäuse nach Anspruch 3, dadurch gekennzeichnet, daß das Innenteil 1 mit dem Boden verbunden ist.
5. Uhrgehäuse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Uhrglas (12) längsseits mit dem Tragring (21) ausgefluchtet ist.
6. Uhrgehäuse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Uhrglas (12) mittels Klammern (20) befestigt ist.
7. Uhrgehäuse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Uhrglas (12) auf dem Tragring aus Kunststoffmaterial mittels Nieten (48, 59, 78) befestigt ist.
8. Uhrgehäuse nach Anspruch 7, dadurch gekennzeichnet, daß die Nieten (48) jeweils einen zylindrischen Korpus (52) mit einem Bördelkopf sowie einen auf dem zylindrischen Korpus sitzenden, von dem Bördelkopf gehaltenen Ring (54) umfassen.
9. Uhrgehäuse nach Anspruch 8, dadurch gekennzeichnet, daß der Korpus (52) und der Ring (54) ferner miteinander verlötet sind.
10. Uhrgehäuse nach Anspruch 7, dadurch gekennzeichnet, daß der Niet (59, 78) in einem Loch (74, 88) des Tragrings sitzt und Widerhaken (64′, 64˝, 82) umfaßt, die mit den Wandungen des Lochs zusammenwirken zum Sichern der unlösbaren Verbindung.
11. Uhrgehäuse nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß der Niet (59) einen von einer Mehrzahl von Krallen (62) gebildeten Kopf in Kronenform umfaßt, welche Krallen jeweils eine auf dem Uhrglas (12) aufsitzende Schulter (66) und eine Nut (68) besitzt, wobei die Gesamtheit der Nuten ein dekoratives Element (70) umfassen.
12. Uhrgehäuse nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß die Innenseite des Uhrglases (12) eine Metallisierung (86) aufweist, auf die der Niet (78) aufgelötet ist.
13. Uhrgehäuse nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß das Uhrglas aus mineralischem Material besteht.
14. Uhrgehäuse nach Anspruch 13, dadurch gekennzeichnet, daß das Material Saphir ist.
EP88100421A 1987-01-22 1988-01-14 Uhrengehäuse mit einem Mittelteil, einem Glas und Mittel zur Befestigung des Glases an dem Mittelteil Expired - Lifetime EP0277510B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH220/87 1987-01-22
CH22087A CH666981GA3 (de) 1987-01-22 1987-01-22

Publications (2)

Publication Number Publication Date
EP0277510A1 EP0277510A1 (de) 1988-08-10
EP0277510B1 true EP0277510B1 (de) 1991-06-05

Family

ID=4182012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100421A Expired - Lifetime EP0277510B1 (de) 1987-01-22 1988-01-14 Uhrengehäuse mit einem Mittelteil, einem Glas und Mittel zur Befestigung des Glases an dem Mittelteil

Country Status (5)

Country Link
EP (1) EP0277510B1 (de)
JP (1) JP2552158B2 (de)
CH (1) CH666981GA3 (de)
DE (1) DE3863078D1 (de)
HK (1) HK142094A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106896701A (zh) * 2015-12-21 2017-06-27 斯沃奇集团研究和开发有限公司 用于钟表的表盘嵌花

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2855620B1 (fr) * 2003-05-27 2005-08-26 Michel Louis Marie Gigoux Dispositif de fixation etanche d'un verre sur une boite de montre a l'aide d'une ou plusieurs vis le traversant
DE102015207049A1 (de) 2015-04-17 2016-10-20 Levitation AG Uhrglas mit mindestens einem Schmuckstein

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649435GA3 (de) * 1981-05-22 1985-05-31

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH206230A (fr) * 1938-03-10 1939-07-31 Solvil Des Montres Paul Ditish Pièce d'horlogerie.
FR908125A (fr) * 1944-12-12 1946-04-01 R & L Feusier Ets Dispositif de fixation des verres de montre
US2566741A (en) * 1948-07-10 1951-09-04 Longines Wittnauer Watch Co In Watch casing
GB1199498A (en) * 1967-03-29 1970-07-22 Latex Products Proprietary Ltd Non-Return Valve for Medical Uses.
JPS5597486U (de) * 1978-12-21 1980-07-07
JPS5689977U (de) * 1979-12-13 1981-07-18
CH642810B (fr) * 1981-12-02 Rado Montres Sa Boite de montre.
CH649436GA3 (de) * 1982-06-10 1985-05-31
US4497584A (en) * 1982-06-21 1985-02-05 Firma H. Finger Wrist watch case with vulcanized gasket
CH659168GA3 (de) * 1985-04-16 1987-01-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649435GA3 (de) * 1981-05-22 1985-05-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106896701A (zh) * 2015-12-21 2017-06-27 斯沃奇集团研究和开发有限公司 用于钟表的表盘嵌花

Also Published As

Publication number Publication date
DE3863078D1 (de) 1991-07-11
JPS63187186A (ja) 1988-08-02
CH666981GA3 (de) 1988-09-15
JP2552158B2 (ja) 1996-11-06
HK142094A (en) 1994-12-23
EP0277510A1 (de) 1988-08-10

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