EP0269872A1 - Uhrengehäuse - Google Patents

Uhrengehäuse Download PDF

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Publication number
EP0269872A1
EP0269872A1 EP87115949A EP87115949A EP0269872A1 EP 0269872 A1 EP0269872 A1 EP 0269872A1 EP 87115949 A EP87115949 A EP 87115949A EP 87115949 A EP87115949 A EP 87115949A EP 0269872 A1 EP0269872 A1 EP 0269872A1
Authority
EP
European Patent Office
Prior art keywords
ring
cavity
seal
wall
box 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.)
Granted
Application number
EP87115949A
Other languages
English (en)
French (fr)
Other versions
EP0269872B1 (de
Inventor
Jacques Müller
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
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0269872A1 publication Critical patent/EP0269872A1/de
Application granted granted Critical
Publication of EP0269872B1 publication Critical patent/EP0269872B1/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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches

Definitions

  • the present invention relates to a watch case comprising a case-glass assembly comprising a transparent central part and a peripheral lateral part delimiting an interior cavity intended to receive a movement, a bottom obstructing this cavity, and assembly means making it possible to make the bottom secured to the middle part-glass.
  • the invention relates more particularly, but not exclusively, to a watertight box, the middle of which is made of a single piece of mineral glass, and the metal bottom.
  • Watch cases of this kind are well known, however, despite their simplicity, they have never been widely used since the assembly of the two parts has always posed a delicate problem, which has never been satisfactorily resolved.
  • patent application DE 3 120 799 describes a watch case, the middle-glass assembly, of pressed glass, and the back, of metal, are assembled by means of a notch device acting directly between these two parts. . It is obvious that such a device risks damaging, or even destroying, the glass part during the operations of closing and opening the box.
  • the object of the present invention is to overcome these drawbacks by proposing a watch case of the above type, which is particularly remarkable in that it further comprises a deformable seal disposed along the internal wall of the lateral part, and in that the assembly means penetrate, at least partially, into the cavity to exert, in cooperation with the bottom, a radial force on the joint in order to compress it against the wall.
  • An advantage of the watch case according to the present invention stems from the fact that the deformable seal, by equalizing the pressures exerted on the internal wall, makes it possible to avoid any risk of local deformation which could cause the middle part to rupture. ice.
  • Another advantage of the invention results from the simplicity of the assembly means which, requiring neither delicate machining nor complex parts, make it possible to reduce the cost of manufacturing the box.
  • FIGS. 1 and 2 there is a window-glass assembly 1 of round shape constituting one of the two main parts of the box.
  • Part 1 has a relatively thick edge 2 and a thinner central cap 3.
  • the middle part-glass 1 is made of pressed mineral glass. It thus forms a single homogeneous part.
  • the edge 2 plays the same role as the middle part in a conventional watch case, while the cap 3, which is transparent, fulfills the same function as the crystal.
  • the outer surface of the edge 2 can be treated appropriately in order to give the box a particular appearance. This surface may, for example, be opaque to conceal the interior of the box.
  • the edge 2 has an internal lateral wall 4 which delimits in the middle part-glass 1, with the internal face of the cap 3, an internal cavity 5. This cavity is intended to receive a movement and a display, not shown.
  • the wall 4 forms a cylindrical surface arranged perpendicular to the main plane of the box.
  • a bottom 10 which constitutes the other main part of the box.
  • This bottom in the form of a thin plate made for example of stainless steel, is intended to close the interior cavity 5.
  • Two horns 11, used to attach to a bracelet (not shown), are arranged at the ends of the bottom 10. Finally, it has holes 12 with axes parallel to the wall 4, the role of which will appear further on.
  • a brass ring 15 comprising, at the end facing the cap 3, a flange 16. The outer lateral edge of this flange comes into contact with the wall 4 in order to center the ring 15 radially in the cavity 5, this ring can advantageously also serve as a casing ring for the movement.
  • the ring 15 also comprises tapped holes 17 arranged opposite the holes 12.
  • a brass ring 18 extending from the collar 16 to the end of the ring.
  • the outer face of this ring has a bevel 18 ⁇ in its portion which is located near the flange 16.
  • the ring 15, the flange 16 and the bevel 18 ⁇ of the ring 18, is arranged a deformable annular seal 19.
  • This seal must be made of a softer material than that used for the ring 15 and the ring 18.
  • the seal could advantageously be made of rubber, of synthetic material, or even of a ductile metal such as copper.
  • the mounting of the box is obtained by placing the gasket 19 on the ring 15 so that it touches the flange 16, then sliding the ring 18 on the ring until the bevel 18 'comes into contact with the joint, finally by introducing everything into the cavity 5.
  • the ring 18 also has a height such that, in this position of the elements, its end projects beyond the body 1 and the ring 15.
  • the radial force pressing the seal 19 against the wall 4 causes an axial friction force which prevents the ring 15 from coming out of the cavity 5.
  • the height of the ring 18 is chosen so that when the bottom 10 comes into contact with the ring 15, after the locking of the screws 20, the friction force is sufficient to avoid inadvertent opening of the box in all circumstances.
  • the wall 4, where it comes into contact with the seal 19, can advantageously be made rough, or else include an annular groove 21 serving as a housing for the joint.
  • the deformable seal 19 may be a seal to prevent moisture from entering the cavity 5 along the wall 4.
  • a second seal sealing 25 must be disposed between the bottom 10 and the ring 15 in a groove 24 formed in the ring.
  • the screws 20 must be outside the perimeter delimited by the groove 24 which, of course, can also be made in the bottom 10.
  • the middle part-glass 1 could, for example, include a middle part, a glass, possibly a bezel, these independent parts being assembled in a conventional manner.
  • the middle part would preferably be made of a hard material such as sintered metal, corundum or ceramic, but a metal such as brass, stainless steel or gold could also be used.
  • the side wall 4, making it possible to fix the bottom 10, would be made in the middle.
  • the wall 4 would be made in the glass which would have a thick edge for this purpose, the height of the middle being then reduced so as not to increase the height of the box.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electric Clocks (AREA)
  • Telephone Function (AREA)
  • Casings For Electric Apparatus (AREA)
  • Gasket Seals (AREA)
EP87115949A 1986-11-04 1987-10-30 Uhrengehäuse Expired - Lifetime EP0269872B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH436486A CH665745GA3 (de) 1986-11-04 1986-11-04
CH4364/86 1986-11-04

Publications (2)

Publication Number Publication Date
EP0269872A1 true EP0269872A1 (de) 1988-06-08
EP0269872B1 EP0269872B1 (de) 1990-02-21

Family

ID=4274721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115949A Expired - Lifetime EP0269872B1 (de) 1986-11-04 1987-10-30 Uhrengehäuse

Country Status (7)

Country Link
US (1) US4831607A (de)
EP (1) EP0269872B1 (de)
JP (1) JPS63124989A (de)
CH (1) CH665745GA3 (de)
DE (1) DE3761734D1 (de)
HK (1) HK32193A (de)
SG (1) SG132192G (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541001A1 (de) * 1991-11-04 1993-05-12 Compagnie des Montres Longines, Francillon S.A. Uhrengehäuse mit einem abnehmbaren Boden
EP0762240A1 (de) * 1995-08-30 1997-03-12 Fabrique D'ebauches De Sonceboz S.A. Uhrengehäuse mit ausgehöhltem Gehäuseteil und Gehäuseanpassungsmittel sowie eine mit einem solchen Gehäuse ausgerüstete Uhr

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW505831B (en) * 2001-03-15 2002-10-11 Ebauchesfabrik Eta Ag Watch case assembled via the bezel
EP1489472B1 (de) * 2002-03-26 2013-10-23 Citizen Holdings Co., Ltd. Funkuhr
EP2595007B1 (de) * 2011-11-17 2015-01-07 ETA SA Manufacture Horlogère Suisse Uhrwerksanordnung mit Zentrierung und Befestigung einer Platine auf einem Gehäuserahmen
EP3561612B1 (de) * 2018-04-23 2023-07-26 Rolex Sa Zusammenbauverfahren einer uhr
JP6890773B2 (ja) * 2019-02-27 2021-06-18 カシオ計算機株式会社 ケースおよび時計

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968911A (en) * 1955-11-01 1961-01-24 Piquerez Ervin Fluidtight watch case
CH966570A4 (de) * 1970-06-25 1974-04-11
CH1549371A4 (de) * 1971-10-25 1973-02-28 Finger H Fa Uhrschale
JPS5192653A (de) * 1975-02-12 1976-08-13
CH632886GA3 (en) * 1979-02-21 1982-11-15 Piece of jewellery protected by a shielding of hard metal
CH653205GA3 (de) * 1982-07-09 1985-12-31
GB2128378B (en) * 1982-08-24 1986-01-02 Citizen Watch Co Ltd Water-resisting structure for a watch
CH654168GA3 (de) * 1983-08-22 1986-02-14
JPS60263882A (ja) * 1984-06-07 1985-12-27 ゲブリユ−デル、ユングハンス、ゲゼルシヤフト、ミツト　ベシユレンクテル、ハフツング 腕時計

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541001A1 (de) * 1991-11-04 1993-05-12 Compagnie des Montres Longines, Francillon S.A. Uhrengehäuse mit einem abnehmbaren Boden
CH684236GA3 (fr) * 1991-11-04 1994-08-15 Longines Montres Comp D Boîte de montre avec un fond séparable.
US5373484A (en) * 1991-11-04 1994-12-13 Compagnie De Montres Longines Watch case with separable back cover
EP0762240A1 (de) * 1995-08-30 1997-03-12 Fabrique D'ebauches De Sonceboz S.A. Uhrengehäuse mit ausgehöhltem Gehäuseteil und Gehäuseanpassungsmittel sowie eine mit einem solchen Gehäuse ausgerüstete Uhr

Also Published As

Publication number Publication date
CH665745GA3 (de) 1988-06-15
JPS63124989A (ja) 1988-05-28
HK32193A (en) 1993-04-08
SG132192G (en) 1993-03-12
EP0269872B1 (de) 1990-02-21
US4831607A (en) 1989-05-16
DE3761734D1 (de) 1990-03-29

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