EP0597357B1 - Uhr mit einem mit einer Dichtung abgeschlossenen Batteriedeckel - Google Patents

Uhr mit einem mit einer Dichtung abgeschlossenen Batteriedeckel Download PDF

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Publication number
EP0597357B1
EP0597357B1 EP93117741A EP93117741A EP0597357B1 EP 0597357 B1 EP0597357 B1 EP 0597357B1 EP 93117741 A EP93117741 A EP 93117741A EP 93117741 A EP93117741 A EP 93117741A EP 0597357 B1 EP0597357 B1 EP 0597357B1
Authority
EP
European Patent Office
Prior art keywords
seal
housing
lip
case
bearing surface
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
EP93117741A
Other languages
English (en)
French (fr)
Other versions
EP0597357A1 (de
Inventor
Jacques Crettenand
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 EP0597357A1 publication Critical patent/EP0597357A1/de
Application granted granted Critical
Publication of EP0597357B1 publication Critical patent/EP0597357B1/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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • 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 timepiece comprising a battery door which is closed by a seal which can be put in place reliably and easily, and which can withstand very high pressures.
  • Classic timepieces include a battery door generally closed by a cover which is locked on the box by a bayonet mechanism and which is associated with a seal interposed between the cover and the box.
  • This seal is in this type of conventional arrangement constituted by an O-ring generally referenced under the name "o-ring”, which is not satisfactory for mounting reasons.
  • Document GB-A-2,100,891 describes a method and means for sealingly placing a battery in a watch case.
  • a disc-shaped seal is interposed between a cover of a battery flap and an annular flange of this flap, made integrally with the box.
  • the present invention aims to remedy these drawbacks by providing a timepiece whose battery door and the associated cover are provided with a seal whose implementation can be easily ensured, so reliable and repetitive, while being able to ensure a perfect seal under high pressure conditions.
  • said cover comprises an attached intermediate plug which is made of plastic, which is freely housed in this cover and which is in direct contact with the seal.
  • first frustoconical bearing formed on the box widens towards an entry of said housing, the second frustoconical bearing which keeps the lip trapped against the first frustoconical bearing being formed at the periphery of the plug.
  • the lip extends beyond the two frustoconical bearing surfaces which hold it and projects outwards, in the vicinity of a peripheral edge of the cover.
  • the timepiece according to the invention which is represented here by the general reference 1, comprises a box 2 made of an organic material, such as a thermoplastic material, for example acrylonitrile butadiene styrene referenced under the abbreviation ABS.
  • a thermoplastic material for example acrylonitrile butadiene styrene referenced under the abbreviation ABS.
  • a battery door 4 which is constituted by a stepped housing 6 formed inside the box 2 for receiving a source of electrical energy P, formed by a button cell of a classic type.
  • electrical contact elements are generally arranged inside the battery flap 4 to ensure electrical contact between the positive and negative terminals of the battery and the electrical and electronic components of the timepiece according to the invention.
  • the stepped housing 6 of the battery flap 4 comprises three characteristic parts, a bottom part 8 which receives the battery P as well as the associated electrical contact elements, not shown, an intermediate part 10 more particularly receiving a seal that will be described below, and an inlet part 12 receiving a cover 14 for closing the hatch 4.
  • the timepiece according to the invention comprises a seal 16 which is advantageously formed by a solid lip seal extending, as can be clearly seen in the appended figure, over the entire front surface SF of the P stack.
  • This lip seal 16 which has no discontinuity from its outermost peripheral edge towards the center, is made of an elastomeric material, such as nitrile or vulcanized rubber.
  • the battery cover 14 includes an intermediate plug 18 likewise made of an organic material, such as a thermoplastic, for example polyoxymethylene, referenced under the abbreviation POM and sold under the trademark "Delrin”.
  • an organic material such as a thermoplastic, for example polyoxymethylene, referenced under the abbreviation POM and sold under the trademark "Delrin”.
  • the plug 18 is separate from the cover 14 and attached therein.
  • This intermediate plug 18 is freely housed in the cover 14 with a radial clearance and it is in direct contact with a peripheral lip 20 formed on the seal 16.
  • the battery cover 14 which is produced by a thin stamped metal sheet has in its central part an actuating notch 22 into which can be inserted a tool, such as a coin, to ensure the rotation of the cover 14 and thus its opening and closing. It will be noted here that the cover 14 turns alone, independently of the plug 18 which remains fixed in contact on the seal 16.
  • the timepiece comprises locking means 24 constituted by a bayonet system of a conventional design.
  • This system consists of several radial tongues 26 (only one being shown here) extending radially from the peripheral edge 28 of the cover 14, towards the outside, and engaging in a circular groove 30 which is formed in the box 2 and which opens radially into the inlet part 12 of the housing 6.
  • the inlet part 12 of the housing 6 which is the stepped part of this housing having the largest diameter, essentially receives the cover 14 and its plug 18, as well as the locking means 24 described above. .
  • the lip 20 of the seal 16 rests on a frustoconical surface 32 formed in the box 2, between the inlet part 12 of the housing 6 and the intermediate part 10 of the latter.
  • the frustoconical bearing 32 flares towards the entrance to the housing 6 at an angle of about 45 °.
  • the lip 20 is therefore trapped between this first bearing frustoconical 32 and a second frustoconical bearing 34 substantially of the same inclination as the first, formed in turn on the plug 18, at the periphery thereof.
  • the lip 20 extends beyond the two frustoconical bearing surfaces 32 and 34 respectively which hold it and that it projects outwards, in the inlet part 12 of the housing 6, in the vicinity of the peripheral edge 28 of the cover 14.
  • the projecting part of the lip 20, forming the most extreme external part of the seal 16 has two faces at 90 °, respectively 36 and 38 reinforcing the sealing function of the lip when subjected to high pressures. It can therefore be seen that when the part is immersed in a liquid, the latter can come into the inlet part 12 of the housing 6 to come into contact with the faces 38 and 36 of the peripheral outer edge of the lip 20.
  • the seal 16 also comprises a circular bulge 40 having the shape of a rib which extends axially towards the stack P and which is intended to come to rest in axial support on a bottom of the latter.
  • the plug 18 has for this purpose an inner corner 42 formed in the vicinity of the frustoconical surface 34 and compressing the seal 16 in line with the bulge 40 to ensure the axial support of the battery P, on its electrical contacts, not shown.
  • the lip seal 16 of the timepiece provides the axial support of the stack P towards the bottom of the housing 6, and in particular towards its bottom part 8.
  • the seal 16 further comprises a central bellows 44 which extends entirely under the stack 6, inside the circular bulge 40, this bellows having two characteristic convex regions, one central and the other outside coaxial with the first.
  • the seal 16 is held radially in the box 2 and more particularly in the intermediate part 10 of the housing 6, by means of an intermediate cylindrical surface 48 formed at the entrance to the housing part 8 receiving the battery. .
  • a corresponding cylindrical bearing surface 50 is provided at the periphery of the seal 16 adjacent and contiguous to the lip 20, this bearing surface 50 being housed inside the cylindrical bearing surface 48 of the housing 6 to ensure the adjustment and the radial positioning of the seal 16, in box 2.
  • cylindrical surface 48 formed in the box 2 has a re-entrant edge 52 in which a corresponding frustoconical edge 54 formed on the lip seal 16, opposite the lip 20 engages.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Battery Mounting, Suspending (AREA)

Claims (7)

  1. Zeitmeßgerät, der Bauart umfassend:
    - ein Gehäuse (2),
    - eine Batterieaufnahme (4), gebildet durch eine in dem Gehäuse (2) ausgesparte Ausnehmung (6) zur Aufnahme einer durch eine Batterie (P) gebildeten elektrischen Energiequelle, und
    - Verschlußmittel für die Ausnehmung (6), wobei diese Verschlußmittel einen mechanisch mit dem Gehäuse (2) verriegelbaren abnehmbaren Deckel (14) und eine zur Zwischenlage zwischen Deckel (14) und Gehäuse (2) ausgebildete Dichtung (16) aufweisen, wobei die Dichtung (16) eine durchgehende Dichtung ist, die sich über die gesamte Stirnfläche (SF) der Batterie (P) erstreckt und zusätzlich zur Abdichtung der Ausnehmung (6) eine axiale Abstützung der Batterie (P) gegen den Boden der Ausnehmung (6) sicherstellt, dadurch gekennzeichnet, daß die Dichtung (16) eine Lippe (20) und eine umfangsmäßig an der Dichtung (16) benachbart zu der Lippe (20) gebildete zylindrische Dichtfläche (50) aufweist, wobei die zylindrische Dichtfläche (50) mit einer am Einlaß der Batterieausnehmung (6) vorgesehenen zylindrische Anlagefläche (48) zusammenwirkt, um den radialen Sitz der Dichtung (16) sicherzustellen, während die Lippe (20) zwischen einer jeweils zum Gehäuse (2) bzw. zum Deckel (14) gehörenden ersten bzw. einer zweiten kegelstumpfförmigen Anlagefläche (32, 34) festgeklemmt ist.
  2. Zeitmeßgerät nach Anspruch 1, dadurch gekennzeichnet, daß der Deckel (14) einen angesetzten Zwischenstopfen (18) aus Kunststoff aufweist, der in dem Deckel (14) frei aufgenommen ist und der sich unmittelbar an der Dichtung (16) abstützt.
  3. Zeitmeßgerät nach Anspruch 2, dadurch gekennzeichnet, daß die in dem Gehäuse (12) ausgebildete erste kegelstumpfförmige Anlagefläche (32) sich zu einem Einlaß der Ausnehmung (6) hin erweitert, während die zweite kegelstumpfförmige Anlagefläche (34), die die Lippe (20) gegen die erste kegelstumpfförmige Anlagefläche (32) festgeklemmt hält, in der Peripherie des Stopfens (18) ausgebildet ist.
  4. Zeitmeßgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Lippe (20) sich über die beiden sie haltenden kegelstumpfförmigen Anlageflächen (32, 34) hinaus erstreckt, und benachbart zu einem peripheren Rand (28) des Deckels (14) nach außen vorspringt.
  5. Zeitmeßgerät nach Anspruch 2, dadurch gekennzeichnet, daß die Dichtung (16) einen rippenartigen Ringwulst (40) aufweist, der der Batterie (P) zugekehrt ist und der sich gegen diese axial abstützen soll, wobei der Stopfen (18) eine vorspringende Ecke (42) aufweist, die die Dichtung (16) am Orte des Wulst (40) komprimiert.
  6. Zeitmeßgerät nach Anspruch 5, dadurch gekennzeichnet, daß die Dichtung einen mittigen Bauch (44) aufweist, der sich unter der Batterie (P) innerhalb des Ringwulst (40) erstreckt.
  7. Zeitmeßgerät nach Anspruch 1, dadurch gekennzeichnet, daß die an dem Gehäuse (2) ausgebildete zylindrische Anlagefläche (48) einen der Lippe (20) abgekehrt ausgebildeten zurückspringenden Rand (52) aufweist, in welchen ein entsprechender kegelstumpfförmiger Rand (54) der Dichtung (16) eingreift.
EP93117741A 1992-11-11 1993-11-02 Uhr mit einem mit einer Dichtung abgeschlossenen Batteriedeckel Expired - Lifetime EP0597357B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3486/92 1992-11-11
CH3486/92A CH684729B5 (fr) 1992-11-11 1992-11-11 Pièce d'horlogerie comportant une trappe de pile fermée par un joint d'étanchéité.

Publications (2)

Publication Number Publication Date
EP0597357A1 EP0597357A1 (de) 1994-05-18
EP0597357B1 true EP0597357B1 (de) 1997-03-19

Family

ID=4257035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117741A Expired - Lifetime EP0597357B1 (de) 1992-11-11 1993-11-02 Uhr mit einem mit einer Dichtung abgeschlossenen Batteriedeckel

Country Status (14)

Country Link
US (1) US5396473A (de)
EP (1) EP0597357B1 (de)
JP (1) JP3404091B2 (de)
KR (1) KR100313434B1 (de)
CN (1) CN1040700C (de)
AT (1) ATE150556T1 (de)
AU (1) AU663279B2 (de)
CA (1) CA2109388C (de)
CH (1) CH684729B5 (de)
DE (1) DE69308987T2 (de)
ES (1) ES2101194T3 (de)
HK (1) HK1007609A1 (de)
SG (1) SG86287A1 (de)
TW (1) TW257840B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6636458B1 (en) * 2000-03-29 2003-10-21 Lux Products Corporation Waterproof timer
US8420388B2 (en) 2008-06-30 2013-04-16 Cho-A Pharm. Co., Ltd. Gene of porcine beta casein, a promoter of the same and the use thereof
EP2466394A1 (de) * 2010-12-17 2012-06-20 The Swatch Group Research and Development Ltd. Kapsel für wissenschaftliches Instrument

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR999677A (fr) * 1949-11-17 1952-02-04 Perfectionnement aux boîtiers de montre
CH531202A (fr) * 1970-07-14 1972-04-14 Boites De Montres F Kuhn S A F Montre-bracelet à éclairage du cadran
CH632895B (fr) * 1980-03-31 Ebauchesfabrik Eta Ag Dispositif de fixation et de prise de contact electrique d'une pile dans une montre.
CH646577GA3 (fr) * 1981-06-24 1984-12-14 Ebauchesfabrik Eta Ag Procédé d'usinage du fond d'une boîte de montre moyens pour la mise en oeuvre du procédé et boîte de montre résultant de la mise en oeuvre du procédé.
CH660109GA3 (de) * 1985-06-25 1987-03-31
CH676772B5 (de) * 1989-05-29 1991-09-13 Ebauchesfabrik Eta Ag

Also Published As

Publication number Publication date
AU663279B2 (en) 1995-09-28
HK1007609A1 (en) 1999-04-16
ATE150556T1 (de) 1997-04-15
AU5055293A (en) 1994-05-26
CH684729GA3 (fr) 1994-12-15
CA2109388C (en) 2004-07-20
JPH06207990A (ja) 1994-07-26
TW257840B (de) 1995-09-21
CA2109388A1 (en) 1994-05-12
DE69308987T2 (de) 1997-10-02
KR940012082A (ko) 1994-06-22
CN1040700C (zh) 1998-11-11
EP0597357A1 (de) 1994-05-18
DE69308987D1 (de) 1997-04-24
CH684729B5 (fr) 1995-06-15
KR100313434B1 (ko) 2002-04-06
SG86287A1 (en) 2002-02-19
CN1090401A (zh) 1994-08-03
ES2101194T3 (es) 1997-07-01
JP3404091B2 (ja) 2003-05-06
US5396473A (en) 1995-03-07

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