EP3754437A1 - Mechanische verbindungsvorrichtung zwischen einem armband und einem mechanischen teil - Google Patents

Mechanische verbindungsvorrichtung zwischen einem armband und einem mechanischen teil Download PDF

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Publication number
EP3754437A1
EP3754437A1 EP19180626.4A EP19180626A EP3754437A1 EP 3754437 A1 EP3754437 A1 EP 3754437A1 EP 19180626 A EP19180626 A EP 19180626A EP 3754437 A1 EP3754437 A1 EP 3754437A1
Authority
EP
European Patent Office
Prior art keywords
bracelet
pivot
retaining member
zone
connection device
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.)
Withdrawn
Application number
EP19180626.4A
Other languages
English (en)
French (fr)
Inventor
Elio Granito
Evgueni MIKHOV
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.)
Dexel SA
Original Assignee
Dexel SA
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 Dexel SA filed Critical Dexel SA
Priority to EP19180626.4A priority Critical patent/EP3754437A1/de
Priority to EP20180285.7A priority patent/EP3753441B1/de
Publication of EP3754437A1 publication Critical patent/EP3754437A1/de
Withdrawn legal-status Critical Current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
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/20—Fasteners for straps, chains or the like for open straps, chains or the like
    • A44C5/2076—Fasteners for straps, chains or the like for open straps, chains or the like with the two ends of the strap or chain abutting each other or sliding in the main plane or a plane parallel to the main plane of these two ends

Definitions

  • the present invention relates to a mechanical connection device between a bracelet and a mechanical part, in particular a mechanical part in the field of jewelry or watchmaking and more particularly between a watch strap and a component such as a watch case. , a clasp or another part of the watch strap.
  • the watch case has two horns between which is placed a pivot of the bracelet.
  • the horns have hollows opening into the lower part of the horn, so as to allow to release the pivot of the horns.
  • These recesses can be closed or opened by actuating a lock. When the lock is closed, the pivot is held between the horns, in the recesses. When the locks are open, the pivot can be separated from the horns by the opening opening into the lower part of the horn.
  • the locks are actuated by an actuating mechanism which is accessible from the side of the watch. It is not excluded that the locks move from the closed position to the open position while the user is wearing the watch. Such opening of the locks can take place, for example, following a displacement of the mechanism for actuating the locks, when this mechanism is hooked in particular by a suit. Opening of the locks can occur when the watch is on the user's wrist. This opening can also occur following improper closing of the lock or for other reasons. In such a case, there is a great risk that the pivot will become detached from the watch and that the latter will fall from the wrist of the user.
  • the present invention proposes to provide such a mechanical connection device, which allows a user to very simply separate the two mechanical parts, without tools and without complex handling, and which at the same time guarantees that the mechanical parts do not separate unintentionally or accidentally, in particular when the mechanical parts to be linked are part of a wristwatch and when the watch -bracelet is worn by a user.
  • the object of the invention is also achieved by a timepiece comprising a mechanical connection device as described above.
  • the mechanical linkage device makes it possible to link in a simple and efficient manner, various mechanical components and in particular various components of a watch.
  • the components which can be interconnected are in particular a bracelet with a watch case, a bracelet with a clasp or links of a bracelet.
  • This mechanical connection device can be opened easily, without tools and without special know-how, so as to separate the mechanical parts from one another. This makes it possible in particular to change the watch strap very easily.
  • the mechanical connection device is also particularly safe in the sense that the mechanical parts cannot become detached when the watch is worn by a user, even in the event of sudden movement, friction or improper closing of the system.
  • this mechanical connection device is also advantageous because of the fact that its construction is simple and does not involve a large number of complex parts to be machined or assembled.
  • An advantage of the invention comes in particular from the fact that the bracelet does not include a moving part. It can therefore be produced relatively simply, without increasing the cost of manufacture compared to a conventional bracelet.
  • the moving parts or those which require more complex manufacture are in principle produced on the other component to be linked to the bracelet, in particular on the clasp or the case.
  • connection device thus makes it possible to have several bracelets and to choose the bracelet to use at a given time, according to his desire.
  • the mechanical connection device 10 is intended in particular to link a bracelet 11, in particular a wristwatch bracelet, to a mechanical part 12, in particular a component of a wristwatch.
  • This component can be for example a watch case, a clasp or another part of the bracelet.
  • the mechanical part 12 linked to the bracelet 11 is a clasp 13.
  • the link device 10 is however the same if it is another component.
  • the bracelet 11 is integral with a pivot 14.
  • This pivot may form an integral part of the bracelet 11 or be placed, for example, in a buckle arranged near the end of this bracelet.
  • This bracelet 11 further comprises a stop 15.
  • the stop 15 comprises a shoulder 16 arranged set back from the pivot 14 relative to the component to be linked to the bracelet. This shoulder 16 cooperates with the horns 17 of the component so as to prevent the movement of the strap 11 towards the center of the component which is linked to this strap.
  • the bracelet 11 is generally fixed to the periphery of the mechanical part 12.
  • the center of this mechanical part or of the component to be linked to the bracelet is located in a direction opposite to the bracelet with respect to the area in which the bracelet is attached to this mechanical part.
  • the stop effect is obtained by the cooperation between the shoulder 16 of the bracelet and the lugs 17 of the component to be linked to the bracelet.
  • This abutment effect can also be obtained by means of a projecting zone 18 arranged in front of the pivot 14, towards the center of the component to be linked.
  • This protruding zone 18 is in particular visible on the figures 1 and 14a to 14g .
  • This protruding zone 18 bears against a part of the component to be linked to the bracelet 11, when this bracelet 11 is pushed towards the center of the component.
  • the projecting zone 18 bears against the component, the strap 11 can no longer be moved further in this direction.
  • a bracelet could have a protruding zone 18 and a shoulder 16 acting one or the other or both as a stop, in cooperation with a part of the mechanical part 12 to be linked to the bracelet.
  • the shoulder 16 as well as the protruding zone 18 do not fundamentally change the aesthetics of the bracelet, which makes it possible to keep a bracelet having a conventional aesthetic to which users are accustomed.
  • the figures 3, 4 e 15 show another type of bracelet in which the bracelet comprises a housing 19 receiving the pivot 14. This housing 19 is closed upwards so as to form a stop 15 having the same function as the shoulder 16 or the projecting zone 18 of the modes implementation described above.
  • the bracelet 11 comprises a pivot 14 formed of two portions of a circle 20 connected by two flats 21.
  • the pivot 14 acts as a stopper, this pivot preventing the user from removing the bracelet.
  • this pivot 14 no longer acts as a stopper and the bracelet can be separated from the mechanical part 12, as is described in more detail below.
  • the mechanical part 12 linked to the bracelet 11 comprises a retaining member 22 of the pivot 14 of the bracelet, this retaining member 22 comprising a retaining zone 23 and a release zone 24.
  • this pivot 14 cannot separate from the retaining member 22.
  • the pivot 14 is in the release zone 24, it can be withdrawn from the retaining member 22, which makes it possible to separate the bracelet 11 from the mechanical part 12.
  • the retaining member 22 of the mechanical part is adapted to the bracelet which is linked to it.
  • the retainer 22 will probably have a different shape depending on whether the bracelet is similar to that illustrated by figure 2 , to that illustrated by figures 3 and 4 or to that illustrated by figure 16 .
  • the pivot retainer 22 comprises two horns 17 positioned and dimensioned so as to be able to receive the pivot 14 of the bracelet.
  • This bracelet 11 may be of the type represented by the figure 2 .
  • the horns 17 each comprise a groove 25 formed of two communicating segments, not aligned. One of the segments, called free segment 26, opens out under horn 17, while the other segment, called blind segment 27, does not open out from horn 17.
  • the free segment 26 of the groove 25 forms the release zone 24 of the retaining member 22 while the blind segment 27 of the groove 25 forms the retaining zone 23 of the retaining member 22.
  • the blind segment 27 is closed by a part of the horn 17, so as to form a hook arranged to receive and retain the pivot 14 of the bracelet.
  • the grooves made in the horns can be through, in that each groove passes right through the horn in the direction of its thickness.
  • each horn 17 has a groove 25. It is however also possible to provide a groove on a single horn, the other horn simply comprising a hole which can be blind or through, intended to receive one end of the pivot. 14 of the bracelet. This hole can have a diameter slightly larger than the diameter of the pivot 14 or be slightly oval so that the pivot 14 can move slightly in the hole without being deformed or strained.
  • the mechanical part 12 to be linked to the bracelet 11 comprises two locks 28. These locks are slidably mounted in a rail 29 of the mechanical part 12 and can slide between an open position and a closed position.
  • the bolts 28 release the free segment 26 from the grooves 25 while in the closed position, these bolts 28 block the free segment 26 of the grooves 25 and hold the pivot in the blind segment 27.
  • the figures 5 to 8 illustrate in more detail the locks 28 used in the connecting device 10 of the invention.
  • These locks 28 each comprise a shoe 30 movable between the open position and the closed position of the lock, these shoes being connected by a connecting rod 31.
  • the shoes 30 slide in the rail 29 produced in the component to be linked to the bracelet.
  • the component comprises a screw 32 disposed near the rail 29 and aligned with this rail.
  • This screw 32 supports a compression spring 33 bearing on the one hand on the screw 32 and on the other hand on the shoe 30 of the latch 28. The function of this compression spring 33 is to press the latch 28 into the closed position.
  • the locks 28 can be linked together by the connecting rod 31 as illustrated by the figures 5 to 8 . They can also be independent of each other. This embodiment is illustrated by the figures 9 to 11 .
  • the figure 9 shows a clasp 13 comprising two bolts 28 which are independent of one another.
  • Each of the locks comprises a shoe 30 movable in a rail 29, these shoes 30 being pressed into a closed position by a compression spring.
  • the closed position of the lock is illustrated by the figure 9 .
  • the figure 10 also illustrates the locks 28 in the closed position, viewed from above.
  • the locks 28 are illustrated in an open position, that is to say in a position in which the release zone 24 of the retaining member 22 is accessible by the pivot 14 of the bracelet. This position of the locks 28 is reached when a force acts against the compression springs. When the connecting device 10 of the invention is used, this force is applied by the pivot 14 of the bracelet 11.
  • the shoes 30 can be held in the rails 29 for example by virtue of their profile which can be in particular dovetail, T or other.
  • the shoes 30 can also be held in place by a part placed over the locks.
  • These latches can also slide along screw 32, for example an unthreaded portion of the screw, or a rod aligned with the screws.
  • the locks 28, and more precisely the part of the shoe 30 interacting with the grooves 25, comprise a zone forming an inclined plane 34 disposed such that pressure on this inclined plane 34 has the effect of moving the latch 28 against the force. of the compression spring 33, towards the open position of the locks.
  • the relative dimensions of the blind segment 27, of the horns 17 and the distance between the pivot 14 and the shoulder 16 of the bracelet are such that the pivot 14 cannot reach the part of the segment which is in contact with the underside of the horns or segment. free 26. In this way, the bracelet 11 cannot come out of the horns 17 and therefore cannot separate from the component to which it is linked.
  • the distance between the pivot 14 and the end of the projecting zone are such that the pivot 14 cannot not reach the part of the groove 25 opening under the lugs 17, or release zone 24, when the watch is worn by a user.
  • the release zone 24 has a width greater than the space between the two flats 21 and less than the diameter of the portions of a circle 20. In this way, if the flats 21 are not parallel to the sides of the release zone 24, the pivot 14 acts as a stop in the retaining zone of the grooves and the strap cannot be separated from the grooves.
  • this bracelet When the bracelet 11 is to be mounted on a mechanical part 12, in particular when the bracelet is to be fixed to the clasp 13, this bracelet is presented in front of the clasp in a position such that a longitudinal axis 35 of the bracelet is substantially perpendicular to a plane of said mechanical part and in such a way that the pivot 14 of the bracelet is opposite the release zone 24 of the retaining member 22.
  • the longitudinal axis 35 of the bracelet is defined as an axis forming part of the bracelet when the latter is arranged on a plane and extending along this bracelet. This axis is visible on the figures 2 and 3 and often corresponds in practice to an axis of symmetry of the bracelet.
  • the plane of the mechanical part 12 is defined as a plane containing the bottom of the part, that is to say the part of the mechanical part which is in contact with the user when the mechanical part is worn by a user.
  • the plane of the part is a plane tangent to the arm of the user, in the zone in which the mechanical part is in contact with the arm of this user.
  • this bracelet 11 is first of all pressed in the direction of its longitudinal axis 35 so that the pivot 14 engages in the release zone 24 of the retaining member 22 and so that this pivot 14 acts on inclined planes and press locks 28 into the open position.
  • the bracelet 11 can then be pivoted about the pivot 14 so that its longitudinal axis 35 is substantially contained in the plane of the part.
  • the bracelet 11 and the component are then in a position of use.
  • the bracelet 11 is presented opposite the mechanical part 12 in such a way that the pivot 14 is disposed near the release zone 24 of the retaining member 22.
  • the longitudinal axis 35 of the bracelet is substantially perpendicular to the plane of the mechanical part and the pivot 14 of the bracelet is engaged in the retaining member 22.
  • the pivot 14 is moved until it is positioned in the retaining zone 23 of the retaining member 22, at the end of the groove 25 opposite the free end.
  • the pivot 14 In the embodiment illustrated by figures 14a to 14g , the pivot 14 must follow a certain path, intended to prevent an untimely release of the pivot.
  • the pivot 14 must also be pressed into the retaining zone 23 of the retaining member 22.
  • the bracelet 11 when it has reached the desired position, it is rotated by an angle substantially equal to 90 °, so that the longitudinal axis 35 of the bracelet is contained in the plane of the mechanical part 12. .
  • the mechanical part 12 and in particular the watch if it is a timepiece can be worn on the wrist of a user.
  • the release zone 24 is not either more accessible by the pivot 14 when the bracelet is rotated in a direction of rotation opposite to the wrist.
  • the bracelet 11 is rotated so that its longitudinal axis 35 is perpendicular to the plane of the part, this rotation preferably being carried out in the direction of the wrist or more precisely in the direction of the place where the wrist would be if the watch were worn by a user. .
  • the bracelet is pressed at the level of the pivot, in a direction opposite to the direction of the force exerted by the compression springs 33 of the locks.
  • the shoes 30 of the bolts are then retracted until they free the opening of the free segment 26.
  • the pivot 14 can then be withdrawn from the lugs 17 and the bracelet 11 can be separated from the mechanical part 12.
  • the figures 12 and 13 illustrate an embodiment in which the device of the invention does not include a lock.
  • the bracelet comprises a pivot 14 and a shoulder 16.
  • the longitudinal axis 35 of the bracelet is substantially contained in the plane of the part.
  • the shoulder 16 is in contact with the lugs 17 when the bracelet is pressed towards the center of the component and the pivot 14 cannot reach the free segment 26 or the zone of. release 24 of the retaining member 22.
  • This pivot 14 therefore necessarily remains in the blind segment 27 and in the retaining zone 23 of the retaining member.
  • the bracelet therefore remains integral with the part.
  • the bracelet can then be moved. More precisely, the pivot 14 can be moved in the grooves so as to reach the release zone 24 of these grooves. The bracelet can then be separated from the component.
  • the figures 14a to 14g illustrate another variant of the connecting device of the invention, without a lock.
  • the grooves 25 are not formed of two segments, but of more than two segments, in this case four.
  • One of the segments opens out under the horns and is called free segment 26.
  • the other end of the grooves has a segment which does not open out from the horns is which is called blind segment 27.
  • This blind segment 27 and the part of the horns 17 in which is produced the blind segment forms a hook intended to receive the pivot 14 of the bracelet.
  • the stop function is performed by means of a protruding zone 18 bearing against a part of the component to be linked to the bracelet.
  • the free 26 and blind segments 27 are linked together by two segments 36 forming the retaining zone.
  • the longitudinal axis 35 of the bracelet is contained in the plane of the component.
  • the pivot 14 of the bracelet is in the retaining zone 23 of the retaining member 22 and more precisely in the blind segment 27 of the groove.
  • the bracelet 11 cannot separate from the component on the one hand because the protruding zone 18 prevents the movement of the bracelet towards the center of the component and on the other hand, because the retaining zone 23 of the groove also prevents this. movement towards the center of the component.
  • the wristband When the wristband needs to be separated from the component, it must first be rotated, as can be seen on the figure 14b , until reaching a position in which the longitudinal axis 35 of the bracelet is perpendicular to the plane of the component. This position is visible on the figure 14c .
  • the bracelet must then be moved by making the pivot 14 follow a path defined by the grooves 25, until it reaches the release zone 24 of the retaining member 22. These positions are illustrated by the figures 14d to 14g .
  • the shape of the path that the pivot 14 must follow to reach the release zone 24 makes it possible to avoid any untimely separation of the strap and the component, in particular when the user has removed his watch, but is not still ready to handle the bracelet.
  • the figures 15a to 15d illustrate an embodiment in which the latch 28 forms part of the retainer 22 and in which the retainer does not include non-aligned segments.
  • the mechanical part 12 comprises a central retaining element 37 on which is fixed the pivot 14.
  • This central retaining element 37 plays the role played by the horns in the embodiments described above.
  • the lock 28 comprises a groove 38 intended to receive the pivot 14 of the bracelet.
  • the bracelet comprises a stop 15 which is formed by an upper part of the housing 19 in which this pivot is placed.
  • the longitudinal axis 35 of the bracelet is contained in the plane of the part.
  • the pivot 14 is held in the retaining member 22, more precisely in the groove 38 of the latch 28.
  • the bracelet cannot reach the release zone 24 of the retaining member 22 because in this position, the stop 15 rests on part of the mechanical part.
  • the bracelet 11 When the bracelet 11 is to be removed, it is first of all pivoted so that its longitudinal axis 35 is perpendicular to the plane of the part. This position is illustrated by the figure 15b . In this position, the stop 15 is released from the part and no longer prevents the movement of the bracelet 11.
  • the bracelet can then be moved in the direction of the release zone 24 of the retaining member 22. During this movement, the inclined plane 34 produced on the shoe 30 of the lock 28 makes it possible to press this shoe against the force of the springs. compression and thus free the passage for the bracelet pivot.
  • the shoe 30 of the lock also comprises an inclined plane 34 'disposed on the side of the back of the room. This also allows the latch 28 to be moved against the force of the compression springs when a new strap is to be put on.
  • the bracelet In the embodiment illustrated by figures 16 and 17 , the bracelet must also be rotated for it to be removable. In the pivoted position, the flats 21 are aligned with the sides of the release zone 24. The pivot 14 can then be released from the retaining member 22 and the bracelet 11 can be separated from the mechanical part 12.
  • an element prevents the bracelet from rotating in a direction opposite to the wrist.
  • This element can be the shape of the bracelet, the position of the pivot, a shape or a protuberance performed on the mechanical part or any other element making it possible to achieve the desired goal.
  • the invention is illustrated in embodiments in which the grooves 25 are formed of rectilinear segments, perpendicular to each other. These grooves could also be formed from one or more curves that are not necessarily rectilinear and not necessarily perpendicular to each other. The gorges, however, have a blind zone and a free zone.
  • the two parts cannot be separated from each other when they are worn, even in the absence of a lock. Indeed, the stop of the bracelet prevents any movement of the pivot until the opening of the horn.
  • the component linked to the bracelet by means of the device of the invention can in particular be a watch case, a clasp or a bracelet element.
  • a bracelet link which can be removed or added easily, so as to adapt the length of the bracelet to the needs of the wearer of the watch.
  • the bracelet could cooperate with a clasp, according to an embodiment with locks such as illustrated by the figures 1 to 8 , while a bracelet link could be connected to a bracelet part by means of a device illustrated by the figures 14a to 14g .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Buckles (AREA)
EP19180626.4A 2019-06-17 2019-06-17 Mechanische verbindungsvorrichtung zwischen einem armband und einem mechanischen teil Withdrawn EP3754437A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19180626.4A EP3754437A1 (de) 2019-06-17 2019-06-17 Mechanische verbindungsvorrichtung zwischen einem armband und einem mechanischen teil
EP20180285.7A EP3753441B1 (de) 2019-06-17 2020-06-16 Vorrichtung zur mechanischen verbindung zwischen einem armband und einem mechanischen teil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19180626.4A EP3754437A1 (de) 2019-06-17 2019-06-17 Mechanische verbindungsvorrichtung zwischen einem armband und einem mechanischen teil

Publications (1)

Publication Number Publication Date
EP3754437A1 true EP3754437A1 (de) 2020-12-23

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EP19180626.4A Withdrawn EP3754437A1 (de) 2019-06-17 2019-06-17 Mechanische verbindungsvorrichtung zwischen einem armband und einem mechanischen teil
EP20180285.7A Active EP3753441B1 (de) 2019-06-17 2020-06-16 Vorrichtung zur mechanischen verbindung zwischen einem armband und einem mechanischen teil

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EP20180285.7A Active EP3753441B1 (de) 2019-06-17 2020-06-16 Vorrichtung zur mechanischen verbindung zwischen einem armband und einem mechanischen teil

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758951A1 (fr) * 1997-01-31 1998-08-07 Gerard Chagnoux Fixation d'un bracelet a sa montre
CH689931A5 (fr) * 1995-12-18 2000-02-15 Renato Poli Fermoir pour bracelet, notamment bracelet-montre.
CH697598B1 (fr) 2004-03-11 2008-12-15 Cleef & Arpels S A Van Dispositif de fixation d'un bracelet sur un objet, notamment une boîte de montre.
CH704810A1 (fr) 2011-03-31 2012-10-15 Louis Vuitton Malletier Sa Brin de bracelet flexible.
WO2018127779A1 (fr) * 2017-01-04 2018-07-12 Lvmh Swiss Manufactures Sa Dispositif de liaison pour bracelet

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2742638B1 (fr) * 1995-12-26 1998-02-20 Naja Dispositif de fixation d'une extremite d'un lien a un objet, notamment une montre
EP3449756B1 (de) * 2017-08-28 2020-05-13 The Swatch Group Research and Development Ltd Uhr oder schmuckstück mit abnehmbarem armband

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH689931A5 (fr) * 1995-12-18 2000-02-15 Renato Poli Fermoir pour bracelet, notamment bracelet-montre.
FR2758951A1 (fr) * 1997-01-31 1998-08-07 Gerard Chagnoux Fixation d'un bracelet a sa montre
CH697598B1 (fr) 2004-03-11 2008-12-15 Cleef & Arpels S A Van Dispositif de fixation d'un bracelet sur un objet, notamment une boîte de montre.
CH704810A1 (fr) 2011-03-31 2012-10-15 Louis Vuitton Malletier Sa Brin de bracelet flexible.
WO2018127779A1 (fr) * 2017-01-04 2018-07-12 Lvmh Swiss Manufactures Sa Dispositif de liaison pour bracelet

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Publication number Publication date
EP3753441A1 (de) 2020-12-23
EP3753441B1 (de) 2023-04-05

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