EP0595774B1 - Vorrichtung zum Befestigen eines Uhrenglases auf einem Mittelteil - Google Patents

Vorrichtung zum Befestigen eines Uhrenglases auf einem Mittelteil Download PDF

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Publication number
EP0595774B1
EP0595774B1 EP19930810752 EP93810752A EP0595774B1 EP 0595774 B1 EP0595774 B1 EP 0595774B1 EP 19930810752 EP19930810752 EP 19930810752 EP 93810752 A EP93810752 A EP 93810752A EP 0595774 B1 EP0595774 B1 EP 0595774B1
Authority
EP
European Patent Office
Prior art keywords
watch
fastening
faces
glass
fastening 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
EP19930810752
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English (en)
French (fr)
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EP0595774A1 (de
Inventor
Hans-Jörg Finger
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.)
H FINGER Firma
Original Assignee
H FINGER Firma
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Filing date
Publication date
Application filed by H FINGER Firma filed Critical H FINGER Firma
Publication of EP0595774A1 publication Critical patent/EP0595774A1/de
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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
    • G04B37/14—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
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G04B39/02—Sealing crystals or glasses

Definitions

  • the present invention relates to a device for holding a watch crystal on a middle part with the interposition of a seal, comprising holding members removably connected to the middle part and simultaneously serving to hold the crystal and when a bracelet is connected to the middle part, the said holding members comprising flat bearing faces, parallel to each other, in contact with equally flat guide faces formed on the middle part parallel to the axis of the latter, said retaining members being fixed to the middle part by locking elements which, when in place, ensure compression of the lining in the axial direction.
  • Devices of this kind are known, for example from patent CH 592 911. They constitute solutions to the problem consisting in producing waterproof watch cases, the lenses of which are made of mineral glass or of a transparent and hard material such as sapphire, and with the visible side as wide as possible. To fulfill this last condition, we seek to avoid the use of a telescope and mount the glass directly on the middle, while fixing it in a removable manner.
  • EP-A-0 439 081 applies to round watch cases (fig. 1).
  • the retaining part is subjected to deformation during the introduction of the fixing pin. It is therefore necessary to provide a special tool for this purpose, so that the holding part is exactly positioned before the introduction of the pin.
  • the object of the present invention is therefore to create a device of the type mentioned which differs from known devices by new features, capable of improving the aesthetics of watch cases provided with a hard material crystal removably attached to a middle, and adapting to round, oval or other shapes.
  • the device according to the invention is characterized in that the said holding members which are fixed to the middle part by locking elements cause, when they are put in place, a sliding of the bearing faces on the guide faces and also the compression of the packing in the axial direction.
  • FIG. 1 is a section along the line I - I in FIG. through a watch case provided with the abovementioned embodiment
  • FIG. 2 is a partial view from below, partially cut away, of the watch case according to FIG. 1.
  • the drawing represents a wristwatch case which has a middle part 1 of circular shape, the lower opening of which is formed by a bottom 2 engaged in notch in the middle.
  • a gasket gasket 3 of rectangular profile ensures the seal between the back and the middle part.
  • the middle part 1 has a large flat surface which forms an annular shoulder on which the periphery of the dial of the watch extends.
  • a triangular profile flange 5 covers the edge of the dial and limits an annular shoulder 6 located outside the flange, covered by a flat lining 7.
  • a glass 9 of generally circular shape rests at its periphery on the lining 7. It is surrounded by a peripheral rim 8 of the middle part 1. Its lower face is flat while its upper face is curved, that is to say in the form of a portion of the cylindrical surface having for axis a line parallel to the lower face of the crystal and perpendicular to line 6 H - noon of the watch.
  • the glass 9 is secured to the middle part 1 by a holding device which comprises the following elements:
  • Two holding members 10 are arranged around the circumference of the middle part 1, respectively at the 12 o'clock position and at that of 6 o'clock.
  • Each of these members has a base II with two ears 12, one of which is pierced with a tapped hole 13 and the other with a blind hole 14 opening onto the internal face of the ear. These two holes are coaxial.
  • the holding members 10 have, at their upper part, a curved claw 22 which is intended to cover the periphery of the crystal 9.
  • a slot 23 allows the attachment of a bracelet element.
  • the device described comprises two external housings formed in the periphery of the middle part over 12 H and over 6 H, with in the center of each housing a lug 15 crossed by a cylindrical hole 16 whose axis is parallel to the plane of the glass and perpendicular to the direction 12 H - 6 H.
  • each external housing of middle part On each side of the lug 15 each external housing of middle part has a guide plane 17. These planes are parallel to the axis of the watch and parallel to the axis of the hole 16. They have dimensions adapted to those of the ears 12. These indeed have, at their free end, flat faces 18 which act as bearing faces capable of being applied against the planes 17 of the external housings of the build.
  • Locking elements constituted by two rods 19 ensure the rigid attachment of the holding members 10 to the middle part 1 in positions which hold the crystal 9 in place and compress the lining 7.
  • Each rod 19 has at one of its ends a head 20 with a drive slot, then a threaded part 21 adapted to the thread 13. Over the rest of its length, each rod 19 is cylindrical with a diameter adapted to the holes 16 and 14.
  • the respective heights of the ears 12 and of the portions of the middle housing located on either side of the lugs 15 are provided so that, as shown in FIG. 1, the holding members 10 can be engaged on the box without the lining 7 being compressed to the maximum.
  • the axes of the holes 13 and 14 are then slightly offset upwards relative to the axis of the hole 16, even though the bearing faces 18 are applied against the guide faces 17.
  • the rods 19 are engaged. Their end enters the hole 14 while the thread 21 attacks the internal thread 13.
  • the ears 12 are brought into positions coaxial with the lug 15, the faces 18 slide against the faces 17 and the claws 22 press on the glass 9 and compress the filling 7.
  • the advantage of the device described is that it requires a minimum of material and is applicable to very thin shoulders, of circular shape or other.
  • the rim of the middle part can be scalloped at the location of the holding members.
  • the locking elements can be formed differently from what is shown.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electric Clocks (AREA)

Claims (8)

  1. Vorrichtung zum Befestigen eines Uhrenglases (9) auf einem Mittelteil mit Dazwischenfügung einer Abdichtung (7), umfassend Halteorgane (10), die lösbar mit dem Mittelteil (1) verbunden sind und gleichzeitig zum Halten des Uhrenglases (9) und zum Verbinden eines Armbandes mit dem Mittelteil dienen, wobei die genannten Halteorgane ebene Stützflächen (18) umfassen, die untereinander parallel sind, in Kontakt mit Führungsflächen (17), welche ebenfalls eben sind und auf dem Mittelteil parallel zur Achse des letzteren angeordnet sind, die Halteorgane (10) am Mittelteil durch Verriegelungselemente (19) befestigt sind, welche, sobald sie an Ort befindlich sind, eine Komprimierung der Abdichtung (7) in axialer Richtung bewirken, dadurch gekennzeichnet, dass die genannten Halteorgane (10), die am Mittelteil (1) durch die Verriegelungselemente (19) befestigt sind, ein Gleiten der Stützflächen (18) auf den Führungsflächen (17) und ebenfalls die genannte Komprimierung der Abdichtung (7) in axialer Richtung bewirken, wenn sie an Stelle gebracht werden.
  2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass sie zwei Halteorgane (10) umfasst und dass die Verriegelungselemente zwei gerade Wellen (19) umfassen, die parallel zu den Führungsebenen des Uhrenglases (9) angeordnet sind.
  3. Vorrichtung nach Patentanspruch 2, dadurch gekennzeichnet, dass der Mittelteil (1) kreisförmig ist.
  4. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der Mittelteil (1) einen peripheren Rand umfasst und dass das Uhrenglas (9) im Innern des Randes gehalten ist.
  5. Vorrichtung nach Patentanspruch 4, dadurch gekennzeichnet, dass der periphere Rand an der Stelle der Halteorgane (10) geschweift ist.
  6. Vorrichtung nach einem der Patentansprüche 2 bis 5, dadurch gekennzeichnet, dass jedes Halteorgan (10) zwei Ohren (12) aufweist, von denen jedes eine Stützfläche (18) umfasst und dass der Mittelteil (1) für jedes Halteorgan einen Halteteil (ergot) (15) und zwei Führungsflächen, die auf der einen und der anderen Seite des Halteteils angeordnet sind, aufweist.
  7. Vorrichtung nach den Patentansprüchen 2 und 6, dadurch gekennzeichnet, dass die genannten Verriegelungswellen (19) ein Gewinde (21) aufweisen, das in eines der genannten Ohren (12) einschraubt wird und einen zylindrischen Teil der in ein im anderen Ohr angeordnetes Loch (14) passt, wobei die Verbindung des Gewindes (21) im entsprechenden Ohr (12) und des Endes des zylindrischen Teils im Loch (14) das Gleiten der Stützflächen (18) und die Komprimierung der Abdichtung (7) realisieren.
  8. Vorrichtung nach Patentanspruch 7, dadurch gekennzeichnet, dass die Verriegelungswellen (19) einen auf der Seite des Gewindes (21) angeordneten Kopf (20) umfassen.
EP19930810752 1992-10-29 1993-10-27 Vorrichtung zum Befestigen eines Uhrenglases auf einem Mittelteil Expired - Lifetime EP0595774B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH337392 1992-10-29
CH3373/92 1992-10-29

Publications (2)

Publication Number Publication Date
EP0595774A1 EP0595774A1 (de) 1994-05-04
EP0595774B1 true EP0595774B1 (de) 1997-06-25

Family

ID=4254558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930810752 Expired - Lifetime EP0595774B1 (de) 1992-10-29 1993-10-27 Vorrichtung zum Befestigen eines Uhrenglases auf einem Mittelteil

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EP (1) EP0595774B1 (de)
DE (1) DE69311783T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3964492B2 (ja) * 1997-03-26 2007-08-22 シチズンホールディングス株式会社 時計用バンドの取付構造

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1483380U (de) * 1938-12-29 1940-04-04
CH677859B5 (de) * 1990-01-25 1992-01-15 Rado Montres Sa

Also Published As

Publication number Publication date
DE69311783T2 (de) 1997-12-04
DE69311783D1 (de) 1997-07-31
EP0595774A1 (de) 1994-05-04

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