EP0386621B1 - Montre comportant une platine carrure portée par deux longerons - Google Patents

Montre comportant une platine carrure portée par deux longerons Download PDF

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Publication number
EP0386621B1
EP0386621B1 EP90103967A EP90103967A EP0386621B1 EP 0386621 B1 EP0386621 B1 EP 0386621B1 EP 90103967 A EP90103967 A EP 90103967A EP 90103967 A EP90103967 A EP 90103967A EP 0386621 B1 EP0386621 B1 EP 0386621B1
Authority
EP
European Patent Office
Prior art keywords
caseband
baseplate
fact
wrist watch
watch according
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
EP90103967A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0386621A1 (fr
Inventor
André Triponez
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
Eta SA Fabriques dEbauches
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 Eta SA Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of EP0386621A1 publication Critical patent/EP0386621A1/fr
Application granted granted Critical
Publication of EP0386621B1 publication Critical patent/EP0386621B1/fr
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
    • G04B29/00—Frameworks
    • G04B29/02—Plates; Bridges; Cocks
    • G04B29/027—Materials and manufacturing
    • 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
    • G04B37/0058—Cases for pocket watches and wrist watches for shaped watches
    • 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
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet
    • 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

Definitions

  • the invention relates to a wristwatch comprising a metal middle, a plate on which is mounted a movement provided with a time display, the plate having come in one piece with the middle to form a middle plate, a crystal and a back respectively reported on the upper and lower faces presented by the middle, first and second linings being interposed respectively between the crystal and the middle and between the bottom and said middle.
  • a watch in which the plate and the middle part are made in one piece is known from document EP-A-0 216 223 (US-A-4 696 577).
  • the middle plate is made of brass, a material which has the advantage of being easy to machine, but which is very subject to oxidation.
  • the plate is covered with a layer of nickel or gold, the total thickness of which generally does not exceed 2 ⁇ m. This is sufficient to protect the brass, while minimizing the dimensions of the plate. This thickness is however not sufficient to protect the exposed parts of the middle part subjected to numerous attacks or stresses such as impacts or abrasions.
  • each middle plate has a section resistant to external stresses.
  • the document EP-A-0 082 119 describes a case case middle, the lateral faces of which are protected by a shaped rod. semi-cylindrical made of corundum. The baguette is glued in a groove of the same milled shape in the edge of the middle. Note, however, that this arrangement is not intended to protect a box whose plate and middle part are made in one piece and are covered with a protective layer of substantially constant thickness as is the case in the present invention.
  • the rods of the cited document do not serve as means of attaching a bracelet. We therefore do not see how the teaching provided by this document, combined with that provided by the previously cited document could suggest what is claimed in the present invention.
  • the middle plate making up the wristwatch of the present invention is characterized in that it is entirely covered with a protective layer of substantially constant thickness, in that said middle plate is carried by two longitudinal members fixed on either side of the middle part and oriented in the direction of the longitudinal direction of the bracelet, said longitudinal members extending beyond the space occupied by the middle plate to serve as means of attachment to a bracelet and in that said longitudinal members are made in such a way that they have greater resistance to external stresses than said middle plate.
  • the watch presented in the figures comprises a middle plate 10 made in one piece and comprising a part forming plate 20 and a part forming middle 18.
  • the middle part 18 is of annular shape and completely surrounds the plate 20.
  • the middle part 18 has an upper face 22 on which a glass 12 rests. Between the glass 12 and the face 22 is interposed a sealing gasket 30, housed in a groove 28. As can be seen in FIG. 2, the face 22 is hidden from view by a metallization 6 affixed under the glass 12.
  • the glass is fixed to the upper face of the middle by gluing for example and completely covers the face upper part of the middle.
  • the middle part 18 has a lower face 24 on which a bottom 14 is supported. Between the bottom 14 and the face 24 is interposed a seal 34, housed in a groove 32.
  • the bottom is fixed on the underside of the middle by means of several screws 3, for example, and completely covers the underside of the middle.
  • the invention is not limited to the arrangements described for the glass and the bottom.
  • the middle 18 could be equipped with an annular rim projecting from its upper and lower faces and the crystal and the middle could be driven into the housings thus formed with interposition of seals.
  • Figures 1 and 2 also show that the middle part 18 has lateral faces 26 and 26a.
  • the configuration of the watch is rectangular, the lateral faces 26 are those which extend in the direction 6h - 12h and the lateral faces 26a are those which extend in the direction 3h - 9h .
  • the plate 20 has recesses 52 which define the clearances in which various components of the watch are housed.
  • the display means formed by needles 54 can be noted, as well as the parts constituting the drive, control and correction means of the display means, shown diagrammatically at 58.
  • the precision required is much greater. This is due to the fact that the hole 52b, which acts as a pivot for a mobile 58a, must have a diameter and a position perfectly defined to guarantee a good meshing of the various mobiles of the watch.
  • a layer 60 of a noble or passivable material such as gold or nickel, whose thickness is between 0.5 and 3 ⁇ m, typically 2 ⁇ m.
  • the middle plate 10 formed by the plate 20 and the middle 18, is entirely covered with the protective layer 60 whose thickness is substantially constant, this layer also covering the lateral faces 26, 26a of the middle 18 (see Figure 3).
  • the middle plate undergoes only one covering treatment, which considerably reduces the manufacturing time.
  • the protective layer 60 is more than sufficient to maintain the appearance of the plate 20, which is protected from external attack by the glass 12 and the bottom 14, it is not at all suitable for protecting the lateral faces 26 , which are subjected to physical aggression such as abrasion or impact.
  • another important characteristic of the present invention proposes to wear the middle plate by two side members or stretchers 1 fixed on either side of the middle part 18 and oriented in the direction of the longitudinal direction of the bracelet attached to the shows, these side members extending beyond the space occupied by the middle plate to serve as a means of attachment to a strap 16.
  • these side members will protect the lateral faces 26 of the middle plate 10 and it is they who will be subjected to the external aggressions of which we spoke above.
  • another characteristic of the invention provides for making the side members so that they have greater resistance to external agents than the base plate proper.
  • Figure 1 shows how the side members 1 are arranged relative to the middle plate.
  • Figure 1 shows two beams 1 oriented in the 6h - 12h direction and arranged on the side and other of the middle 18. In the version presented, they are screwed by means of screws 4 arranged along axes 5 in the middle 18. But other versions are possible as will be said later.
  • the longitudinal members 1 protrude at 6 o'clock and at 12 o'clock from the watch case so that they can be used to attach the strap 16 to the watch and this by means of spring bars 2, for example.
  • the lateral faces 26a visible in FIGS. 1 and 2 covered only with the protective layer 60 covering the middle plate, are not or little stressed by external constraints, protected as they are by the presence of the bracelet 16. There is therefore no need to protect these faces more than they already are by the layer 60.
  • a first solution consists in producing the metal beams, preferably in brass and in covering this brass with a layer 61 of metal which is thicker than that used to cover the middle plate.
  • FIG. 3 shows that the spar 1 is entirely coated with a protective layer 61.
  • This layer is made of a material which is more chemically inert than brass and more resistant to physical attack than layer 60.
  • This material can be chromium , gold, titanium, aluminum or carbide or nitride of a metal chosen from titanium, vanadium, tungsten, or even a layer of organic material such as paint or rubber.
  • the layer 61 is made of one of these metals or metallic compounds, its thickness is advantageously between 5 ⁇ m and 30 ⁇ m, typically 10 ⁇ m. It gives exposed areas a resistance far superior to that which one would expect from a brass piece, even protected by means of layer 60 of nickel or gold, as is the case with the middle plate.
  • the side members can be screwed, riveted, welded or even glued to the middle plate. If the side members are welded, a coating 61 identical in nature to the layer 60 covering the middle plate will preferably be chosen. If the side members are screwed onto the middle plate, at least covers 60 and 61 compatible with each other, that is to say having no electrical torque for example.
  • the side members 1 can be made of a material other than brass. By choosing aluminum for example, it can be anodized, which makes it possible to obtain a very resistant thin layer which, moreover, can be colored.
  • the beams could also be obtained by compacting powders, an operation followed by sintering.
  • the deposits of metallic layers or metallic compounds indicated above can be made by galvanic means or by CVD or PVD.
  • Figures 2 and 3 show that the height of the side members 1 is substantially equal to the overall thickness of the watch. If the crystal 12 is made of sapphire and it entirely covers the upper face 22 of the middle part 18, the height of the side members could be limited to the thickness of the middle part taken between its upper and lower faces, which would make it possible to lighten construction.
  • the main object of the present invention is to protect a middle plate by means of beams made to resist external attack, it will be understood that one can take advantage of the presence of these beams to improve the aesthetic appearance of the watch.
  • These beams shown as two elongated parallelepipeds in the figures, can take other forms, less steep, than those illustrated. They can thus harmonize with the chosen middle plate, be for example curved if this middle plate was round, or even be decorated in any way.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Electric Clocks (AREA)
  • Physical Vapour Deposition (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Adornments (AREA)
EP90103967A 1989-03-07 1990-03-01 Montre comportant une platine carrure portée par deux longerons Expired - Lifetime EP0386621B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH830/89A CH675045B5 (zh) 1989-03-07 1989-03-07
CH830/89 1989-03-07

Publications (2)

Publication Number Publication Date
EP0386621A1 EP0386621A1 (fr) 1990-09-12
EP0386621B1 true EP0386621B1 (fr) 1992-05-27

Family

ID=4196188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90103967A Expired - Lifetime EP0386621B1 (fr) 1989-03-07 1990-03-01 Montre comportant une platine carrure portée par deux longerons

Country Status (8)

Country Link
US (1) US5001686A (zh)
EP (1) EP0386621B1 (zh)
JP (1) JPH0317592A (zh)
CN (1) CN1017381B (zh)
BR (1) BR9001044A (zh)
CH (1) CH675045B5 (zh)
DE (1) DE69000113D1 (zh)
HK (1) HK106896A (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW503344B (en) * 2000-02-02 2002-09-21 Asulab Sa Crystal for a telephone watch
JPWO2011074682A1 (ja) * 2009-12-17 2013-05-02 日本電気株式会社 筐体、電子装置および表示パネルの収容方法
EP3454136A1 (fr) 2017-09-08 2019-03-13 ETA SA Manufacture Horlogère Suisse Boite de montre, montre-bracelet et kit d'assemblage d'une montre-bracelet la comprenant

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1786762A (en) * 1927-09-07 1930-12-30 Illinois Watch Case Co Watchcase
FR784133A (fr) * 1934-04-07 1935-07-22 Encausse & Krasker Montre-bracelet perfectionnée
CH194225A (fr) * 1937-01-12 1937-11-30 Croisier Georges Procédé de fabrication d'une boîte de montre-bracelet à cornes.
CH513453A (fr) * 1968-05-01 1971-04-15 Ulrich Klingenberg Hans Montre-bracelet
US3726082A (en) * 1970-01-13 1973-04-10 Citizen Watch Co Ltd Watch case
FR2272433A1 (en) * 1974-05-20 1975-12-19 Meyer Ferdinand Water-tight wrist watch casing - moulded from inoxidisable sintered metal powder with inner metal sleeve enclosing watch mechanism
CH648450GA3 (zh) * 1981-12-15 1985-03-29
CH646569GA3 (zh) * 1982-05-11 1984-12-14
EP0109997B1 (fr) * 1982-11-22 1986-07-23 Novavit S.A. Dispositif de fixation d'un bracelet à une montre pourvue de cornes
CH662034GA3 (zh) * 1985-09-06 1987-09-15
JPH028681A (ja) * 1988-06-27 1990-01-12 Matsushita Refrig Co Ltd 冷蔵庫等の扉装置

Also Published As

Publication number Publication date
CN1017381B (zh) 1992-07-08
US5001686A (en) 1991-03-19
DE69000113D1 (de) 1992-07-02
JPH0317592A (ja) 1991-01-25
CN1045461A (zh) 1990-09-19
EP0386621A1 (fr) 1990-09-12
CH675045B5 (zh) 1991-02-28
CH675045GA3 (zh) 1990-08-31
BR9001044A (pt) 1991-02-26
HK106896A (en) 1996-06-28

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