EP0660203B1 - Uhrengehäuse - Google Patents

Uhrengehäuse Download PDF

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Publication number
EP0660203B1
EP0660203B1 EP94119298A EP94119298A EP0660203B1 EP 0660203 B1 EP0660203 B1 EP 0660203B1 EP 94119298 A EP94119298 A EP 94119298A EP 94119298 A EP94119298 A EP 94119298A EP 0660203 B1 EP0660203 B1 EP 0660203B1
Authority
EP
European Patent Office
Prior art keywords
circular arc
wall portion
sections
lateral wall
elements
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
EP94119298A
Other languages
English (en)
French (fr)
Other versions
EP0660203A1 (de
Inventor
Jean-Charles Juillerat
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.)
Swatch Group Management Services AG
Original Assignee
SMH Management Services 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 SMH Management Services AG filed Critical SMH Management Services AG
Publication of EP0660203A1 publication Critical patent/EP0660203A1/de
Application granted granted Critical
Publication of EP0660203B1 publication Critical patent/EP0660203B1/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
    • 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 generally relates to watch cases and more particularly a case of waterproof watch including a middle and a back that can be engaged and blocked in it by imparting to the bottom a rotational movement of an angle determined around a geometric axis which will be called an axis closing in the following description.
  • the watch case has a middle, a back and a gasket interposed between the bottom and the middle.
  • the bottom has a peripheral rim having a inclined outer wall in the shape of an ellipse or polygon and the middle has an annular groove having an inclined wall of a shape corresponding to that from the bottom edge wall. The bottom edge can thus engage in groove of the middle and lock in it by turning the back on the middle.
  • this box has the disadvantage of being subject to rapid wear.
  • the elliptical shape or polygonal of the peripheral rim and the shape complementary to the groove of the middle part do not allow blocking the caseback on the middle part only along lines of contact that extend in a direction parallel to that of the inclined wall of the rim or the groove. This results in a tight closure of the box is no longer effectively insured or no longer insured at all after a certain number of openings and closings.
  • Document FR 1'359'524 describes a watch case waterproof comprising an external element and an element internal constituted by a back and a middle and engaged one in the other. A seal carried by one of said elements is pressed axially against a shoulder of the other.
  • the external element has internal projections distributed around its periphery and the element internal external projections evenly distributed over its perimeter and engaged on said external projections for fixing said elements to each other.
  • the projections of said elements are limited axially, on one side by regulated surfaces of generators perpendicular to the axis of the box, each of said surfaces forming a ramp on which one of the projections of the other element can engage and able to cause displacement progressive axial of this other element, when the protrusions of the latter are engaged on said ramps.
  • Such a watch case has the major drawback to be complicated to carry out and is therefore of a high cost price.
  • the main aim of the invention is therefore to remedy the disadvantages of the aforementioned prior art in providing a waterproof watch case comprising a system for fixing the base to the middle having a satisfactory and lasting efficiency, which is simple and easy to manufacture.
  • the invention relates to a box of waterproof watch with two elements respectively a middle and a back, a trim sealing being interposed between these two elements, a first of the elements comprising a wall portion axially delimited peripheral undercut and undercut, the second element also having a axially peripheral side wall portion delimited and undercut of complementary shape to the side wall portion of said first element, the side wall portions of said first and second elements being shaped so that in a first angular position in relation to an axis of rotation, called locking pin, the first element can be separated from the second element and that in a second position angular in which the first element is rotated by predetermined angle around said closure axis from from the first position, the first element is blocked in the second element by compressing the packing.
  • the watch case is characterized in that the peripheral profile of the side wall portion of the first element comprises at minus two circular arc sections each centered on a point offset from the closing axis, these two sections being connected to each other by a section re-entering to form protrusions, in that the profile peripheral of the side wall portion of the second element includes at least two circular arc sections each centered on an offset from the axis of closure, these two sections being connected one to the other by a portion of broken profile defining a depth clearance as it allows, in the first angular position, the passage of the projections of the first element in the notches of the second element, in what each arcuate section of the first element is associated with an arcuate section of the second element, in that the sections associated with each other have substantially the same radius, in that in the first angular position, each arcuate section of the first element is offset from the arcuate section of circle of the second element associated with it, and in what in the second angular position, each section in an arc of
  • the contact of the wall outer edge of the bottom is made on a surface important which distributes the friction between these two elements, and therefore decreases system wear and increases its reliability.
  • the structure of the box according to the invention also allows the progressive tightening of the first element on the second element by compressing the seal in a uniform and progressive manner.
  • the peripheral profile of the side wall portion of the first and second elements each include four circular arc sections regularly distributed around of the first and second elements.
  • the back is self-centered on the middle so that its positioning on the middle before the blocking of the background is facilitated.
  • the first element is the middle part and the second element is the bottom.
  • the side wall portion of the bottom is external and the side wall portion of the middle is internal.
  • the watch case waterproof generally designated by the generic reference M includes two elements respectively forming a middle part 1 of generally circular shape provided with two pairs of horns 2 and a bottom 4 also shaped circular.
  • the middle part 1 comprises a lower face 6 in which is formed an annular groove 8 which receives a seal 10.
  • the latter is intended to be compressed between the surface 12 of a shoulder front 14 of the bottom 4 and the bottom of the groove 8 formed in the underside 6.
  • the shoulder 14 is limited inward by a side wall portion 16 of an axial annular rim 18.
  • the side wall portion 16 is axially delimited between two planes P1 and P2 and is undercut.
  • the planes P1 and P2 are respectively materialized by an upper face 20 of the rim 18 and the surface 12 of the front shoulder 14.
  • the wall portion 16 undercut is as it is slightly inclined with respect to an axis closing O-O 'which is in the example shown the axis geometric of the box, that is to say the axis parallel to the axis of rotation of the needles.
  • the angle tilt is of the order of 10 °.
  • the internal face or entourage 22 of the middle part 1 includes, in its part close to the lower face 6, a side wall portion 24 forming a groove open towards the outside in the internal face 22.
  • the wall lateral 24 is also undercut and axially delimited between two planes P3 and P4 which are respectively materialized by an annular shoulder 26 and the underside 6.
  • the inclination of the wall portion 24 is substantially equal to that of the wall portion 16 of the bottom and the peripheral profile of the wall portion 24 the middle 1 is complementary to that of the portion wall 16 of the bottom 4.
  • the taper of the undercut walls 16 and 24 respectively of the back 4 and the middle part 1 is therefore, in the example described, directed in the direction of the bottom 4.
  • the side wall portion 16 of the base 4 and the side wall portion 24 of the middle part 1 are shaped so that, in a first angular position relative to the axis OO ′ (FIG. 1), the base 4 can be separated from the middle part 1 and that, in a second angular position (FIG. 2) in which the base is rotated by a predetermined clearance angle ⁇ around the axis OO 'from the first angular position, the base 4 is blocked on the middle part 1 by compressing the lining 10.
  • the rim 18 comprises in its upper part an edge 28 and in its lower part an edge 30 which define the height H f of this rim.
  • the groove formed in the internal face 22 comprises in its upper part an edge 32 and in its lower part an edge 34 which define the height H c of this groove.
  • the dimensions of the edge 28 of the rim 18 are chosen to be substantially larger than those of the edge 34 of the groove of the middle part 1 due to the inclination of the faces 16 and 24 and the dimensions of the edge 30 of the bottom. are substantially identical to those of the edge 34 of the middle part.
  • the height H f which corresponds to the distance separating the planes P1 and P2 is less than the height H c which corresponds to the distance separating the planes P3 and P4 so that the upper surface 20 of the rim 18 does not come into contact. contact with the annular shoulder 26 of the groove of the middle part 1 in the second angular position of the base as defined above.
  • the peripheral profile of the side wall portion 24 comprises four sections 38 in an arc, two successive sections 38 in an arc being connected to each other by a re-entrant section 40 oriented substantially radially to form protrusions 44.
  • Each section 38 occupies an arc A c substantially equal to 90 ° from the periphery of the opening of the middle part 1 and is centered on a point of center C c offset from to the closing axis OO 'and which coincides with the axis of the middle part 1 in the particular case.
  • the sections 38 in an arc have the same radius R c so that the centers C c of each of the sections 38 are arranged on a circle 46 (shown in phantom) the center of which is on the axis O-O '.
  • the sections 38 in an arc are therefore eccentric relative to the closing axis O-O 'and the distance from their points relative to the axis O-O 'varies gradually when we go over sections 38 on their entire length. In the example described, this distance increases when we go over sections 38 in the counterclockwise when viewed from below.
  • the peripheral profile of the side wall portion 16 of the bottom also includes four sections 48 in an arc, each centered on a point of center C f offset with respect to the geometric axis of the bottom and which, here again, coincides with that of the box.
  • Each section 48 occupies an arc A f of less than 90 °, for example around 80 °, around the opening of the middle part 1 and has the same radius R f so that the centers C f of the sections 48 are arranged on a circle 50 (shown in phantom) the center of which is on the axis O-O '.
  • Each section 48 is associated with a section 38 of the middle part and the sections 38, 48 associated with each other have substantially the same radius so that the circles 46 and 50 are combined. It will be noted that the value of the angle A f corresponds substantially to the value of the angle A c deduced from the clearance angle ⁇ .
  • two successive sections 48 of the bottom are connected to each other by a portion of broken profile defining a depth clearance 52 such that allows the passage of the projections 44 of the middle part 1 in the first angular position (figure 1).
  • the portion of broken profile comprises a first part 54 which extends to from the end of a section 48, approaching the axis O-O 'substantially to the right of the end of the next section 48 to reach the latter by a second part 56 extending substantially radially.
  • the rim 18 of the bottom 4 can, in the first angular position shown in the Figure 1, be freely engaged in the opening of the middle 1, each section 48 of the back then being eccentric relative to the section 38 of the middle part to which it is associated.
  • Clearance angle ⁇ is the minimum angle necessary to clear the upper edge 28 from the edge lower 34 during rotation of the back in the middle.
  • the clearance angle ⁇ is around 20 °.
  • the clearance angle ⁇ will be the most low possible to increase the contact surface between walls 16 and 24 and get better bottom locking on the middle. This will result in compression of the seal over much of its periphery.
  • box of the invention can still be considered.
  • boxes according to the invention whose side wall portions of the back and middle respectively have two, three, five or more circular arc sections.
  • the shape of the broken profile portion connecting the bottom sections can of course vary.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gasket Seals (AREA)
  • Closures For Containers (AREA)
  • Toys (AREA)
  • Sawing (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (6)

  1. Abgedichtetes Uhrengehäuse (M) mit zwei jeweils einen Gehäusering (1) und einen Boden (4) bildenden Elemente, einer zwischen denn beiden Elementen (1, 4) angeordneten Dichtung (10), wobei ein erstes (1) der Elemente einen axial begrenzten und hinterschnittenen peripheren Seitenwandabschnitt (24) umfaßt und das zweite Element (4) ebenfalls einen axial begrenzten und hinterschnittenen peripheren Seitenwandabschnitt (16) komplementär zum Seitenwandabschnitt (24) des ersten Elements (1) umfaßt, wobei die Seitenwandabschnitte (16, 24) des ersten und des zweiten Elements (1, 4) konform sind, damit in einer ersten Winkelposition bezüglich einer Rotationsachse (0-0'), der Verschließachse, das erste Element (1) vom zweiten Element (4) separiert werden kann und damit in einer zweiten Winkelposition, in der das erste Element um einen vorbestimmten Winkel (Ω) um die Verschließachse (0-0') von der ersten Position aus gedreht ist, das erste Element (1) in dem zweiten Element (4) unter Zusammendrücken der Dichtung (10) blockiert wird, dadurch gekennzeichnet, daß das Umfangsprofil des Seitenwandabschnitts (24) des ersten Elements (1) mindestens zwei Kreisbogenabschnitte (38) umfaßt, von denen jeder um einen bezüglich der Verschließachse (0-0') verschobenen Punkt (Cc) angeordnet ist, wobei die beiden Abschnitte (38) miteinander über einen eingerückten Abschnitt (40) zur Bildung von Auskragungen (44) verbunden sind, und daß das Umfangsprofil des Seitenwandabschnitts (16) des zweiten Elements (4) mindestens zwei Kreisbogenabschnitte (48) umfaßt, von denen jeder um einen bezüglich der Verschließachse (0-0') verschobenen Punkt (Cf) angeordnet ist, wobei die beiden Abschnitte (48) miteinander über einen Abschnitt mit abgekantetem Profil (52) verbunden sind, welcher einen Absatz von solcher Tiefe abgrenzt, daß dieser in der ersten Winkelposition den Durchgang der Auskragungen (44) des ersten Elements in die Abschnitte des zweiten Elements (4) erlaubt, und daß jeder Kreisbogenabschnitt (38) des ersten Elements (1) mit einem Kreisbogenabschnitt (48) des zweiten Elements (4) in Eingriff steht, und daß die miteinander verbundenen Abschnitte (38, 48) im wesentlichen denselben Radius (Rc, Rf) haben, daß in der ersten Winkelposition jeder Kreisbogenabschnitt (38) des ersten Elements (1) bezüglich des Kreisbogenabschnitts (48) des zweiten Elements (4), mit dem er in Eingriff steht, exzentrisch angeordnet ist, und daß in der zweiten Winkelposition jeder Kreisbogenabschnitt (38) des ersten Elements (1) zum damit in Eingriff stehenden Kreisbogenabschnitt (48) des zweiten Elements (4) derart konzentrisch angeordnet ist, daß die Seitenwand (16) des Kreisbogenabschnitts (48) des zweiten Elements (4) über ihre gesamte Erstreckung in engem Kontakt mit der Seitenwand (24) des Kreisbogenabschnitts (38) des ersten Elements (1) steht, mit dem er in Eingriff steht.
  2. Uhrengehäuse nach Anspruch 1, dadurch gekennzeichnet, daß das erste Element (1) der Gehäusering und das zweite Element (4) der Boden ist.
  3. Uhrengehäuse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Seitenwandabschnitt (16) des Bodens (4) außen und der Seitenwandabschnitt (24) des Gehäuserings (1) innen ist.
  4. Uhrengehäuse nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Konizität der Wände (16, 24) der Hinterschneidung des ersten (1) und des zweiten (4) Elements zum Boden (4) gerichtet ist.
  5. Uhrengehäuse nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Umfangsprofil des Seitenwandabschnitts (24) des ersten Elements (1) und das Umfangsprofil des Seitenwandabschnitts (16) des zweiten Elements (4) jeweils vier Kreisbogenteilschnitte (38, 48) umfassen, die gleichmäßig um das erste (1) und das zweite (4) Element verteilt sind.
  6. Uhrengehäuse nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Mittelpunkte (Cc, Cf) der Kreisbogenabschnitte (38, 48) des ersten (1) und des zweiten (4) Elements jeweils auf einem Kreis (46, 50) angeordnet sind, dessen Mittelpunkt auf der Verschließachse (0-0') liegt.
EP94119298A 1993-12-23 1994-12-07 Uhrengehäuse Expired - Lifetime EP0660203B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH385993A CH685526B5 (fr) 1993-12-23 1993-12-23 Boîte de montre.
CH3859/93 1993-12-23

Publications (2)

Publication Number Publication Date
EP0660203A1 EP0660203A1 (de) 1995-06-28
EP0660203B1 true EP0660203B1 (de) 1998-07-22

Family

ID=4265006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119298A Expired - Lifetime EP0660203B1 (de) 1993-12-23 1994-12-07 Uhrengehäuse

Country Status (10)

Country Link
US (1) US5467325A (de)
EP (1) EP0660203B1 (de)
JP (1) JP3459127B2 (de)
CN (1) CN1049509C (de)
CH (1) CH685526B5 (de)
DE (1) DE69411870T2 (de)
ES (1) ES2124357T3 (de)
HK (1) HK1012729A1 (de)
SG (1) SG94683A1 (de)
TW (1) TW258796B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH689346B5 (fr) * 1995-05-03 1999-09-15 Smh Management Services Ag Dispositif de sécurité à alarme acoustique.
CH696091A5 (fr) * 2000-09-14 2006-12-15 Swatch Group Man Serv Ag Montre-bracelet à boîtier réversible.
EP1775050A1 (de) * 2005-10-14 2007-04-18 Eric Bouille Anordnung aus Uhrengehäusen
EP3070545A1 (de) 2015-03-17 2016-09-21 Omega SA Dichtes armbanduhrgehäuse
EP3736644A1 (de) * 2019-05-08 2020-11-11 Omega SA Wasserdichtes armbanduhrgehäuse
EP3736642B1 (de) * 2019-05-08 2023-01-25 Omega SA Wasserdichtes armbanduhrgehäuse
EP4191347A1 (de) * 2021-12-01 2023-06-07 The Swatch Group Research and Development Ltd Armbanduhrengehäuse mit einem boden, der in einer vordefinierten winkelposition ausgerichtet ist

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT530350A (de) *
CH79531A (de) * 1918-03-07 1919-04-16 Bonenblust & Co Führungseinrichtung an Gewindeschneidkluppen
GB751246A (en) * 1954-03-05 1956-06-27 United States Time Corp Improvements in or relating to watch cases
CH338405A (fr) * 1958-08-26 1959-05-15 Georges Ruedin S A Boîte de montre étanche
CH367119A (fr) * 1959-10-16 1963-03-15 Lang Louis Sa Boîte de montre
FR1359524A (fr) * 1963-05-31 1964-04-24 Manuf De Boites De Montres S G Perfectionnements aux boîtes de montre étanches
FR2017168B1 (de) * 1968-08-19 1974-05-03 Bley Roland
US4104867A (en) * 1976-02-27 1978-08-08 Pacific Western Systems Water-tight watch case
JPS57386Y2 (de) * 1977-02-25 1982-01-06
CH650896GA3 (de) * 1983-01-10 1985-08-30
CH666783GA3 (de) * 1986-12-17 1988-08-31

Also Published As

Publication number Publication date
HK1012729A1 (en) 1999-08-06
CN1110795A (zh) 1995-10-25
CH685526GA3 (fr) 1995-08-15
ES2124357T3 (es) 1999-02-01
CN1049509C (zh) 2000-02-16
JPH07209443A (ja) 1995-08-11
US5467325A (en) 1995-11-14
TW258796B (de) 1995-10-01
EP0660203A1 (de) 1995-06-28
SG94683A1 (en) 2003-03-18
DE69411870T2 (de) 1999-03-18
CH685526B5 (fr) 1996-02-15
JP3459127B2 (ja) 2003-10-20
DE69411870D1 (de) 1998-08-27

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