EP0864948A1 - Verfahren und Vorrichtung zur mechanischen Befestigung von Stegen an dem Mittelteil eines Uhrengehäuses - Google Patents

Verfahren und Vorrichtung zur mechanischen Befestigung von Stegen an dem Mittelteil eines Uhrengehäuses Download PDF

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Publication number
EP0864948A1
EP0864948A1 EP98400594A EP98400594A EP0864948A1 EP 0864948 A1 EP0864948 A1 EP 0864948A1 EP 98400594 A EP98400594 A EP 98400594A EP 98400594 A EP98400594 A EP 98400594A EP 0864948 A1 EP0864948 A1 EP 0864948A1
Authority
EP
European Patent Office
Prior art keywords
hole
insert
cap
recess
axis
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
EP98400594A
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English (en)
French (fr)
Other versions
EP0864948B1 (de
Inventor
Alain Silberstein
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0864948A1 publication Critical patent/EP0864948A1/de
Application granted granted Critical
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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
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet

Definitions

  • the present invention relates to a method and a mechanical assembly device for horns on the middle of a watch case.
  • the horns which secure the strap of a bracelet we preferably uses a mechanical process which presents many advantages compared to the welding process which is also used.
  • the mechanical assembly of each side of the case, a pair of parallel horns requires the preliminary drilling, in the middle of the case, of two parallel axis holes and blocking the horns in these holes.
  • CH Patent No. 685,035 describes various forms execution of a watch case in which the horns have nipples engaged in holes blind holes drilled through the lateral surface of the middle. Each nipple is itself pierced, in its part extreme, of a transverse hole used for the passage of a horn locking screw which is engaged, from the underside of the middle part, in a blind hole perpendicular to the hole in which the nipple is engaged and intersecting this one.
  • the mechanical assembly device aforementioned was provided to fix, on each side of a watch case, one horn and it is obvious that in this case the accuracy of the longitudinal position of the horn and its angular position around its axis have no relative importance.
  • the object of the present invention is to provide a method and device for mechanical assembly of horns mounted in pairs on the middle of a watch case which allow, by simple operations, to obtain a perfect precision of the positions of the horns of the same pair with each other.
  • this mechanical assembly process of horns on the middle of a watch case in which a hole is drilled in the middle beforehand opening into the lateral surface of the middle part, the axis of the hole being oriented in the direction in which must extend the assembled horn, is characterized in that that the hole is formed so that it has a thread and that it leads into a coaxial cylindrical recess, smooth, having an internal diameter greater than that of the hole and in turn opening into the lateral surface of the middle part, a threaded end is screwed into the threaded hole a cylindrical insert having an external diameter included between those of the hole and the recess and length sufficient that once screwed in fully it will protrude outside of the middle, it fits fully, in the axial direction, in the recess and on the insert, a cap cylindrical hollow, having, in an extreme part, a diametral hole for fixing a bar of a bracelet, having an external diameter equal to the diameter internal of the recess and having a cylindrical housing blind, axially extending
  • the invention also relates to a device mechanical assembly of horns on the middle of a watch case, each horn being fixed in a hole previously drilled in the middle and opening into the lateral surface of the middle part, the axis of the hole being oriented in the direction in which should extend the assembled horn, characterized in that it comprises a threaded hole opening into a smooth coaxial recess, larger diameter, opening itself into the surface side of the middle, a cylindrical insert of a external diameter between the diameters of the recess and threaded hole, this insert having a threaded end coaxial of the same diameter as that of the threaded hole in order to allow the insert to be screwed fully into the hole, the insert of sufficient length so that when screwed to bottom it protrudes outside the middle, a hollow cylindrical cap having an equal external diameter to the internal diameter of the recess and having, in a end part, a diametral hole for fixing a bar of a bracelet, the cap comprising a housing blind coaxial cylindrical opening in one face front
  • the mechanical assembly device which is used to fix, on the middle 1 of a watch case, one of the horns 2 of a pair of horns used in the usual way for the fixing the bar of a bracelet.
  • the middle part 1 of the case assumed to be horizontal, is drilled with a threaded hole 3 of horizontal axis x which is parallel to the plane of symmetry of the two horns 2 in front be mounted on the middle part 1.
  • This threaded hole 3 opens, outwards, in the bottom 4a of a recess cylindrical 4 of larger diameter with smooth wall, which itself opens into the external lateral surface 5 of the middle 1.
  • An intermediate chamber 6, smaller diameter and shallow, can be provided between the threaded hole 3 and recess 4, to receive a washer 7, intended to ensure the tightness of the housing and incidentally to the fine adjustment of the assembly of the horns on the middle.
  • the horn 2 proper consists of two coaxial elements nested one inside the other, namely a internal screw insert 8 and an external cap 9. Both elements are cylindrical and coaxial and the diameter outer of cap 9 of horn 2 is equal to the diameter internal of chamber 4, to manufacturing tolerances near.
  • the insert 8 has, at its left end or internal, a threaded coaxial end piece 11 with a diameter equal to that of the threaded hole 3 and intended to be screwed into this hole 3.
  • a hollow part 12 such as a diametrical groove, allowing the engagement of a training tool in rotation, such as a screwdriver, to screw the bit 11 of insert 8 in threaded hole 3.
  • Insert 8 has a sufficient length so that when fully screwed into the chamber 4, it protrudes outside the middle 1.
  • the cap 9 is partially hollow and it has a cylindrical internal housing 13 with a diameter which is equal to the external diameter of the insert 8, aux manufacturing tolerances.
  • This housing 13 whose length is equal to or greater than that of insert 8, extends from the left or internal front face 14, annular, from the cap 9 to its bottom 15 in delimiting, with the right or external front face 16 of the cap 9, a solid part in which is pierced a transverse diametral hole 17.
  • This hole is intended for receive one end of a bar of a bracelet shows, to ensure the fixing of this bar.
  • the cylindrical wall of the cap 9 delimited between the internal housing 13 and the external lateral surface of the cap 9 is pierced with a hole 18 whose axis is perpendicular to the axis of the diametral hole 17 and is located at a distance a of the annular front face 14.
  • the cap 9 which is freely fitted onto the screwed insert 8, as shown in Figures 1 and 2, is held in position, both in the axial direction and in rotation about the x axis, at by means of a retaining screw 19 which is screwed into a threaded hole 21 with a vertical axis y .
  • This hole 21 is drilled in the middle part 1, from its lower face 22, it opens in the lower part of the recess 4 and its vertical axis y , located at the distance a from the bottom 4 a of the recess 4, intersects the axis horizontal x of the threaded hole 3.
  • the screw 19 is extended, at its internal end, by a smooth cylindrical boss 23 whose diameter is equal, except for manufacturing tolerances, to the internal diameter of the hole 18 drilled in the cap 9. Due to that the axis y of the threaded hole 21 in the middle part 1 is at the distance a from the bottom 4 a of the recess 4, a distance which is equal to the distance between the axis of the hole 18 and the annular front face 14 of the cap 9, when the latter is fitted to the bottom of the insert 8, that is to say when its annular end face 14 is resting against the bottom 4 has the counterbore 4, the axis of the hole 18 drilled in the cap 9 is in the same transverse plane as that containing the axis of the threaded hole 21.
  • Figure 3 shows the main components of the horn 2 before the first phase of the mechanical assembly process.
  • the insert 8 is screwed, by its threaded end 11, into the threaded hole 3, with the interposition of the sealing washer 7 which is housed in the small diameter recess 6 provided in the bottom 4 has main chamber 4.
  • the cap 9 is fitted on the insert 8, from right to left, until its front face 14 comes to bear against the bottom 4 a of the recess 4, thus forming the horn 2.
  • the cap 9 is then made to rotate on the insert 8, around their common axis x , in order to bring the hole 18 of the cap 9 rigorously opposite the transverse hole 21 opening into the recess 4.
  • the third and final phase consists, as it is illustrated in Figure 4, to be screwed in all the way, from the bottom, the transverse holding screw 19 in the hole threaded 21 so that its extreme boss 23 engages in the hole 18 of the cap 9, to immobilize this cap, forming the outside of the horn 2, in position at both axial and angular.
  • this immobilization could be provided by any other means engaged and immobilized in the two holes coaxial 18 and 21.
  • the hole 21 in the middle 1 could be smooth and the screw 19 could be screwed into the threaded hole 18.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Connection Of Plates (AREA)
  • Adornments (AREA)
EP98400594A 1997-03-13 1998-03-13 Verfahren und Vorrichtung zur mechanischen Befestigung von Stegen an dem Mittelteil eines Uhrengehäuses Expired - Lifetime EP0864948B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9702996A FR2760859B1 (fr) 1997-03-13 1997-03-13 Procede et dispositif d'assemblage mecanique de cornes sur la carrure d'un boitier de montre
FR9702996 1997-03-13

Publications (2)

Publication Number Publication Date
EP0864948A1 true EP0864948A1 (de) 1998-09-16
EP0864948B1 EP0864948B1 (de) 2002-07-17

Family

ID=9504704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400594A Expired - Lifetime EP0864948B1 (de) 1997-03-13 1998-03-13 Verfahren und Vorrichtung zur mechanischen Befestigung von Stegen an dem Mittelteil eines Uhrengehäuses

Country Status (4)

Country Link
EP (1) EP0864948B1 (de)
AT (1) ATE220804T1 (de)
DE (1) DE69806525D1 (de)
FR (1) FR2760859B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305305A1 (de) * 2003-02-10 2004-09-02 Junghans Uhren Gmbh Gehäusemittelteil für eine Armbanduhr sowie Verfahren zu dessen Herstellung
ITMI20091908A1 (it) * 2009-11-02 2011-05-03 Momo Design S R L Orologio da polso con cassa ad anse sostituibili.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH97272A (fr) * 1921-07-25 1923-01-02 G & C Ducommun Boîte de montre.
CH368427A (fr) * 1960-08-24 1962-11-30 Morf Ernest Boîte de montre

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH97272A (fr) * 1921-07-25 1923-01-02 G & C Ducommun Boîte de montre.
CH368427A (fr) * 1960-08-24 1962-11-30 Morf Ernest Boîte de montre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305305A1 (de) * 2003-02-10 2004-09-02 Junghans Uhren Gmbh Gehäusemittelteil für eine Armbanduhr sowie Verfahren zu dessen Herstellung
ITMI20091908A1 (it) * 2009-11-02 2011-05-03 Momo Design S R L Orologio da polso con cassa ad anse sostituibili.

Also Published As

Publication number Publication date
ATE220804T1 (de) 2002-08-15
FR2760859B1 (fr) 1999-04-30
FR2760859A1 (fr) 1998-09-18
EP0864948B1 (de) 2002-07-17
DE69806525D1 (de) 2002-08-22

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