EP0168010B1 - Uhrengehäuse - Google Patents

Uhrengehäuse Download PDF

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Publication number
EP0168010B1
EP0168010B1 EP85108438A EP85108438A EP0168010B1 EP 0168010 B1 EP0168010 B1 EP 0168010B1 EP 85108438 A EP85108438 A EP 85108438A EP 85108438 A EP85108438 A EP 85108438A EP 0168010 B1 EP0168010 B1 EP 0168010B1
Authority
EP
European Patent Office
Prior art keywords
crystal
caseband
watch case
watch
case 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
Application number
EP85108438A
Other languages
English (en)
French (fr)
Other versions
EP0168010A1 (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 EP0168010A1 publication Critical patent/EP0168010A1/de
Application granted granted Critical
Publication of EP0168010B1 publication Critical patent/EP0168010B1/de
Expired 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

Definitions

  • the present invention relates to a watch case comprising a middle part, a mineral glass crystal whose periphery rests on the middle part and which completely covers it, and a bottom, these three elements defining a housing intended to receive a movement surmounted by a dial, and means for fixing the crystal to the middle part.
  • the elegance of the watch has always been largely a function of its thickness, since ultra-thin watches are generally high-end watches. In addition to their elegance, these very flat watches are also more comfortable to wear as they integrate better on the arm.
  • the thickness of a watch is not a completely objective criterion, given that it is not only a function of a measurable dimension generally at the center of the watch, but also of its line, that is to say the impression of thickness which it gives, an impression which is strongly conditioned by the thickness of the lateral face of the middle part.
  • the most important criterion is not the measurable thickness, but the impression of thickness that the buyer perceives, and in particular the impression of thickness that the watch gives to wear.
  • the purpose of the present invention is to provide a solution which makes it possible to give a watch case the appearance of being substantially thinner than its actual thickness, in particular when worn, while offering more solidity and making it less vulnerable to attacks to which it is subjected daily to the wearer's arm.
  • the crystal has the shape of a substantially spherical cap, at least part of the periphery of which is situated at a level below that of the dial.
  • the glass is made of an easily scratched material.
  • beveling is limited.
  • the watch case according to the invention may have a lateral surface of the middle part reduced to a thickness just sufficient to prevent it from being sharp. Therefore, since the crystal will preferably be made of a hard monocrystalline material, practically the only part of the watch case liable to be subjected to impact and scratching is made of a scratch-resistant material.
  • the glass thanks to its spherical cap shape, the glass allows better absorption of the shocks that it can undergo, by transmission to its seat located on the middle part on which it is fixed (implementation of the arch effect) . So, in addition to the aesthetic effect that the object of the invention solution gives to the watch case, it offers excellent protection against shocks and pressures to which a watch is exposed.
  • Another advantage to take into consideration in the shape of a spherical cap of the ice resides in the method of manufacturing this ice when it is made of a mineral material with a monocrystalline structure which we know is not capable of be simply molded, like plastic glasses for example, but must, on the contrary, be cut.
  • a simple geometric shape like a spherical cap is more easy to realize that traditional curved glass, with curvatures of various radii, of the type intended to be fixed in a notch of bezel or middle part for example.
  • Figures 1 to 3 show a wristwatch case comprising a middle part 1 whose axial opening receives a clockwork movement 2 carrying a dial 3 and indicator hands 4.
  • a base 5 is fixed to this middle part 1 with interposition of 'a seal 6.
  • the upper face 7 of this middle part has the shape of a spherical surface portion whose center is located on the central axis of the box.
  • This upper face 7 has two housings 8, diametrically opposite and only one of which is visible in the drawing. These housings each have an annular segment shape.
  • Each housing 8 has two openings 9 (only one of which is visible in the drawing) located in the vicinity of the respective ends of the annular segment.
  • openings 9 each communicate with a clearance 10 located under the middle part 1 and intended to receive the head of a screw 11 screwed into a fixing part 12, in the form of an annular segment, which part takes place in the housing 8 and whose upper face is in the form of a portion of a sphere and is welded to the internal face of a lens 13.
  • the welding of the lens 13 to the fixing piece 12 is carried out first of all by forming a first masking layer by metallization against a peripheral annular zone of the internal face of the crystal, obtained by physical deposition of a metal in vapor phase in particular, better known by the abbreviation of the corresponding expression in English "PVD •.
  • the crystal 13 is made of a hard and transparent mineral substance such as a material with a monocrystalline structure, in particular sapphire. In the drawing, the edge of this crystal extends to the periphery of the middle part 1.
  • the edge ice Given its shape of spherical cap, which is concentric and of the same radius as that of the upper surface of the middle part 1, the edge ice completely covers the upper face of this middle part and descends to a level which is situated below the lower surface of the dial 3, so that the thickness of the lateral face of the middle part thus becomes particularly reduced.
  • the crystal 13 covers the watch over more than half of its thickness.
  • the lateral face of the middle part is re-entrant, it is practically sheltered from scratching.
  • the watch thus has a general shape of a convex lens.
  • This watch also includes a time setting crown 23 (fig. 1 and 3) housed in a recess 24 made in the middle part 1 and the crystal 13.
  • This crown 23 is advantageously made or covered with a hard material, which makes it less sensitive to scratching.
  • this watch may advantageously include a time setting linked to the movement through the back 5, which makes it possible to simplify the external shape of the watch.
  • a seal seal 15 is arranged around this ring 14 and serves to seal between the crystal 13 and the middle part 1.
  • FIGS. 4 and 5 differs from the previous one essentially by the fact that the glass 13 is not fixed to the middle part 1 by means of fixing parts welded to the glass and screwed to the middle, but by tightening .
  • the watch case shown comprises clamping members 16 of which only one is visible in the drawing.
  • Each clamping member 16 has in particular two tabs 17 each provided with a blind hole 18 for fixing a fastening bar d: a strap, and comprises a base 19, fixed under the middle by two screws 20 of which only the 'appears on the drawing.
  • Each clamping member 16 also has claws 21 which bear against the periphery of the external face of the crystal 13 and thus apply its internal face against part of the upper face of the middle part 1, this middle face having the shape of a portion of a sphere of the same radius and the same center as the internal face of the glass 13.
  • the crystal is not welded, the peripheral zone of its internal face situated outside the ring 14 could advantageously be metallized in order to hide this part of the middle part.
  • the watch case described is not necessarily round.
  • the middle and the glass could be cut along a cord represented by a dashed line 22, a symmetrical section (not visible in the drawing) being made parallel to the line 22 on the diametrically opposite edge of the box.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Telephone Function (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Claims (6)

1. Uhrengehäuse, umfassend ein Mittelteil (1), ein Glas (13) aus mineralischem Werkstoff, dessen Umfangsteil auf dem Mittelteil (1) aufliegt und es vollkommen bedeckt, und einen Boden (5), wobei diese drei Elemente jeweils eine äussere Seite aufweisen und eine innere Seite, die einen Aufnahmeraum für ein ein Zifferblatt (3) tragendes Uhrwerk (2) abgrenzt, und Befestigungsmittel (11, 12 ; 16, 20, 21) des Glases (13) an dem Mittelteil (1), dadurch gekennzeichnet, dass das Glas (13) die Form einer kugeligen Kappe hat, deren Umfang mindestens teilweise auf einem Niveau unter dem des Zifferblatts (3) liegt.
2. Uhrengehäuse gemäss Anspruch 1, dadurch gekennzeichnet, dass die genannten Befestigungsmittel Füsse (12) mit Gewindelöchern umfassen, die an der inneren Seite des Glases (13) angeschweisst sind und in an der oberen Seite des Mittelteils (1) vorgesehenen Aussparungen (8) sitzen, und Spannschrauben (11), die mit den genannten Füssen (12) im Eingriff stehen und durch Durchgänge (9) verlaufen, die den Boden der genannten Aussparungen mit der unteren Seite des Mittelteils verbinden.
3. Uhrengehäuse gemäss Anspruch 1, dadurch gekennzeichnet, dass die genannten Befestigungsmittel jedes durch ein auf der unteren Seite des Mittelteils (1) befestigtes Ansatzstück (16) und durch Klauen (21) ausgebildet sind, die auf diesem Ansatz hervorstehen und auf den Umfang der äusseren Seite des Glases (13) greifen.
4. Uhrengehäuse gemäss Anspruch 3, dadurch gekennzeichnet, dass die genannten Befestigungsmittel zwei Ansatzstücke (21) umfassen, die symmetrisch beiderseits des Mittelteils des Uhrengehäuses angeordnet sind, wobei jedes dieser Ansatzstücke ferner Elemente (17) zur Befestigung eines Armbands besitzt.
5. Uhrengehäuse gemäss Anspruch 1, dadurch gekennzeichnet, dass der genannte Werkstoff einkristalliner Saphir ist.
6. Uhrengehäuse gemäss einem 'beliebigen der Ansprüche 1 bis 5 von einer durch den maximalen Abstand zwischen den äusseren Flächen des Glases (13) und des Bodens (5) bestimmten Dicke, dadurch gekennzeichnet, dass mindestens die Hälfte dieser Dicke durch das genannte Glas (13) belegt ist.
EP85108438A 1984-07-12 1985-07-08 Uhrengehäuse Expired EP0168010B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3383/84 1984-07-12
CH338384A CH657246GA3 (de) 1984-07-12 1984-07-12

Publications (2)

Publication Number Publication Date
EP0168010A1 EP0168010A1 (de) 1986-01-15
EP0168010B1 true EP0168010B1 (de) 1988-05-25

Family

ID=4254770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108438A Expired EP0168010B1 (de) 1984-07-12 1985-07-08 Uhrengehäuse

Country Status (7)

Country Link
US (1) US4637734A (de)
EP (1) EP0168010B1 (de)
JP (1) JPS6138485A (de)
CH (1) CH657246GA3 (de)
DE (1) DE3562957D1 (de)
HK (1) HK55890A (de)
SG (1) SG38890G (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660277GA3 (de) * 1985-04-09 1987-04-15
JPH0648447B2 (ja) * 1987-10-21 1994-06-22 株式会社東芝 温度制御装置
CH671494B5 (de) * 1988-02-09 1990-03-15 Phare Jean D Eve Sa Le
CH678254B5 (de) * 1990-02-16 1992-02-28 Rado Montres Sa
CH678909B5 (de) * 1990-03-06 1992-05-29 Rolex Montres
JPH0747161Y2 (ja) * 1992-05-15 1995-11-01 ショーボンド建設株式会社 リベット撤去治具
WO1994008482A2 (en) * 1992-10-05 1994-04-28 Aktsionernoe Obschestvo Pervy Wrist watch casing
JPH0747162Y2 (ja) * 1993-04-28 1995-11-01 ショーボンド建設株式会社 リベット撤去治具
JP5493527B2 (ja) * 2009-07-14 2014-05-14 セイコーエプソン株式会社 無線機能付き時計
EP2500134A1 (de) 2011-03-16 2012-09-19 Comadur S.A. Verkleidungsteil für eine Uhr, und sein Herstellungsverfahren

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH581A (de) * 1889-03-12 1889-10-26 J H Landis & Cie Schärf- und Schränkmaschine
CH206230A (fr) * 1938-03-10 1939-07-31 Solvil Des Montres Paul Ditish Pièce d'horlogerie.
CH335158A (fr) * 1957-10-04 1958-12-31 Gisiger Staehli Josef Boîte de montre
US3257795A (en) * 1964-06-09 1966-06-28 Jonell Watch Case Inc Watch case
FR1398410A (fr) * 1964-06-11 1965-05-07 Weber & Baral K G Boîtier de montre, en particulier pour montres-bracelets
FR2077642A7 (de) * 1970-02-02 1971-11-05 Solidor Ets
CH563611A (en) * 1972-09-08 1975-06-30 Non circular form watch casing - with narrow watch glass enclosing rim
FR2320589A1 (fr) * 1975-08-05 1977-03-04 Le Gal Pierre Montre etanche a hermeticite absolue
CH622151B (fr) * 1977-07-15 Hans Ulrich Klingenberg Boite de montre.
CH649435GA3 (de) * 1981-05-22 1985-05-31
CH643425B (fr) * 1981-06-01 Rado Montres Sa Boite de montre.
CH650634GA3 (de) * 1982-12-14 1985-08-15

Also Published As

Publication number Publication date
JPH0435036B2 (de) 1992-06-09
CH657246GA3 (de) 1986-08-29
JPS6138485A (ja) 1986-02-24
HK55890A (en) 1990-08-03
DE3562957D1 (en) 1988-06-30
EP0168010A1 (de) 1986-01-15
SG38890G (en) 1990-08-17
US4637734A (en) 1987-01-20

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