EP3329797B1 - Vorrichtung zur regulierung der länge eines armbands - Google Patents

Vorrichtung zur regulierung der länge eines armbands Download PDF

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Publication number
EP3329797B1
EP3329797B1 EP17205066.8A EP17205066A EP3329797B1 EP 3329797 B1 EP3329797 B1 EP 3329797B1 EP 17205066 A EP17205066 A EP 17205066A EP 3329797 B1 EP3329797 B1 EP 3329797B1
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EP
European Patent Office
Prior art keywords
guidance
bar
adjusting
bracelet
length
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.)
Active
Application number
EP17205066.8A
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English (en)
French (fr)
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EP3329797A1 (de
Inventor
Martin Christian
Philippe DI PIAZZA
Teddy GRIVET
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.)
Rolex SA
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Rolex SA
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Publication date
Application filed by Rolex SA filed Critical Rolex SA
Publication of EP3329797A1 publication Critical patent/EP3329797A1/de
Application granted granted Critical
Publication of EP3329797B1 publication Critical patent/EP3329797B1/de
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Anticipated expiration legal-status Critical

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    • 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
    • A44C5/22—Fasteners for straps, chains or the like for closed straps
    • A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices
    • A44C5/246—Fasteners for straps, chains or the like for closed straps with folding devices having size adjusting means

Definitions

  • the present invention relates to a device for adjusting the length of a bracelet, comprising a particular guidance and attachment system for a bracelet, particularly suitable for a bracelet for a wristwatch provided with an extension device and / or provided with a '' a folding clasp disposed between two ends of the bracelet. It also relates to a clasp and a bracelet as such, incorporating such a device for adjusting the length of a bracelet, as well as to a wristwatch as such comprising such a device.
  • a clasp designed to hang the two strands of a watch strap around the wrist of its wearer, comprises several articulated blades, which can occupy a first closed position, in which a hooking function is necessary to stabilize this closed position, and a second open position, in which the blades are no longer hung and allow the insertion or removal of the bracelet.
  • a clasp is generally provided with a first adjustment of its positioning relative to the bracelet, called conventional adjustment.
  • the final length obtained is often not perfect and not optimal.
  • the document EP1908366 describes a solution integrated in a clasp for adjusting the length of a bracelet. This solution is based on two parallel spring bars belonging to the same connecting member.
  • the bars include rollers on their ends for sliding in a guide slide formed in a side wall of a clasp cover.
  • a blocking element is arranged around a first bar, capable of cooperating with a rack notch arranged in the upper surface of the cover.
  • the blocking element further comprises a lug which comes to hang elastically on the second bar.
  • the document DE19729903 describes a device for adjusting the length of a bracelet comprising an end mesh provided for connection with the end of a bracelet, and linked to an adjustment mesh in the form of a pivot element pivoting about an axis fixed in the cover of the clasp.
  • the end mesh is mounted so that it can move in rotation by a second axis to the adjustment mesh.
  • the hooking function of the end mesh is implemented by this arrangement around the second axis.
  • the general objective of the invention is to offer a guidance and attachment solution intended for adjusting the length of a bracelet, which improves existing solutions, which in particular optimizes the two guidance and attachment functions.
  • the invention proposes a solution for adjusting the length of a bracelet, or even a solution for closing a bracelet, the operation of which is reliable and the handling user-friendly.
  • an object of the invention is to offer a guidance and attachment solution for a bracelet which makes it possible to achieve reliable operation of the two elastic guidance and attachment functions.
  • a second object of the invention is to offer a guide and attachment solution for a bracelet guaranteeing the aesthetic integrity of a bracelet.
  • the invention is based on a device for adjusting the length of a bracelet, comprising a guidance and attachment system, as defined by claim 1.
  • the invention is based on a combined guidance and attachment system.
  • the guidance and attachment system of the length adjusting device according to the first embodiment of the invention participates in a function of adjusting the length of a bracelet within a clasp, as represented by the figure 1 , and implementing an architecture close to the solution described by the document EP0819391 .
  • the end of such a bracelet is connected to an adjustment device, in particular a comfort adjustment, of its length, shaped to allow a slight adaptation of the length of the bracelet, in addition to a conventional initial adjustment, as explained previously.
  • a clasp 2 with deploying blades comprises two blades 2a, 2b, hinged to each other about an axis 3.
  • One of these blades, the blade 2a is articulated at a first end 1a of a bracelet 1, while the second end 1b of this bracelet is articulated to a cover 24 of the clasp provided with two parallel side walls 2c1, 2c2, forming a cover under which the blades 2a, 2b, fold back.
  • the two parallel side walls 2c1, 2c2, of this cover 24 comprise two respective series of bores 4 which face each other in pairs, intended to receive a pivot axis, as will be detailed below.
  • the guidance and attachment system 10 belonging to the first embodiment of the invention is arranged at the second end 1b of the bracelet, around an axis A1, as will be detailed in more detail.
  • This guide and attachment system first forms an articulation axis for adjustment links 23, 23 ′ arranged under the cover 24 of the clasp.
  • These same adjustment meshes 23, 23 ′ are linked by a second pivot axis 26, arranged around a second axis A2, in particular visible on the figure 2 , distinct from the axis A1 of the guide and attachment system 10, around which is rotatably mounted an end link 25 present at the end 1b of the bracelet 1.
  • the figure 2 illustrates this arrangement at the end 1b of the bracelet in long configuration.
  • the adjustment links 23, 23 ′ are positioned so that the second pivot axis 26 is oriented towards the outside of the cover 24 of the clasp with respect to the first axis A1.
  • the end link 25 thus extends towards the bracelet, between this second pivot axis 26 and a third axis 27 disposed towards the second end 1b, to which the rest of the bracelet strand is linked.
  • the figure 3 illustrates the same arrangement during actuation, in particular for switching from the long configuration to the short configuration.
  • the adjustment links 23, 23 ′ are actuated in rotation about the axis A1, thereby pivoting the pivot axis 26 around this axis A1, towards the inside of the clasp cover, causing the end link 25 towards the inside of the cover, inducing a reduction in the length of the strap 1.
  • This rotation of the adjustment meshes 23, 23 ′ is continued for about half a turn, until reaching the short configuration illustrated by the figure 4 .
  • the guide and attachment system 10 of the length adjustment device according to the first embodiment is arranged around the axis A1 and fulfills the first function of articulation of the adjustment meshes 23, 23 ′ and a second function d elastic coupling allowing stable maintenance of the short configuration mentioned above, as will be detailed below.
  • the figure 5 represents the arrangement in a sectional view along a vertical transverse plane, at the level of the axis A1 of the guidance and attachment system 10.
  • the guide and attachment system 10 first comprises a bar 12, substantially cylindrical, extending transversely over the entire width of the clasp, arranged around the central axis A1, and comprising end pieces 13, 13 'respectively, housed in bores 4 of the side walls 2c1, 2c2 of the cover 24 of the clasp.
  • a retaining spring 14 is disposed in a tubular rod 120 between the two end pieces 13, 13 ', in compressed configuration, along the axis A1, to allow the assembly and disassembly of the bar 12 and its stable maintenance in operating configuration.
  • the rod 120 comprises a peripheral surface, forming a guide surface 11, 11 ', around which the rotation of the adjustment meshes 23, 23' is respectively arranged, in particular by means of a complementary surface formed by a bore of these adjustment meshes.
  • the bar 12 forms a device for guiding the guidance and attachment system 10.
  • the mesh 23 therefore comprises a through bore for the passage of the bar 12.
  • the guidance and attachment system comprises a spring tube 15, disposed around the bar 12, in the central position.
  • This spring tube 15 forms a compression tube. Its axis is the same axis A1 as the bar 12. It is therefore arranged coaxially with the bar 12, which it surrounds.
  • This spring tube 15 forms an attachment device for the guidance and attachment system 10, which fulfills the second function of elastic attachment.
  • at least a portion of the spring tube 15 is provided to be compressed under the actuation of the end mesh 25, more particularly under the actuation of a notch 22 of this end mesh 25, according to this mode. of realization, in short configuration of the bracelet.
  • This compression of the tube generates its elastic deformation of its peripheral wall in a direction substantially perpendicular to the axis A1, therefore in the direction of the bar 12.
  • This cooperation with the end mesh 25 ensures the attachment of this end mesh 25 and the stable maintenance of the entire arrangement in a short configuration. Voluntary pulling of this end link 25 with a predetermined force allows it to escape its elastic hooking and to return to the long configuration of the bracelet.
  • the connection between the spring tube 15 and the bar 12 of the guidance and attachment system 10 is such that the spring tube 15 is independent of the bar 12 and vice versa.
  • the spring tube 15 has, at each of its ends, a portion 16, 16 'provided with a guide surface, which is designed to cooperate with a complementary surface for guiding the adjustment meshes 23, 23', work for example by a bore 230, 230 'of these meshes.
  • the spring tube 15 is arranged and dimensioned so that the internal diameter of the spring tube 15, once compressed, does not collide with the external periphery of the bar 12. Its elastic deformation is therefore free, and has no impact on the bar 12, and does not harm its guiding function.
  • the bar 12 has no influence on the elastic function of the spring tube 15 in its guiding operation.
  • the two guidance and attachment devices of the guidance and attachment system 10 are combined together so as to form a compact device, of minimal bulk, and which does not harm the aesthetics of the clasp or of the bracelet. They also allow them to be assembled and integrated easily within the bracelet.
  • the two devices respectively for guiding and hooking the guide and hooking system are independent from each other.
  • the elastic attachment function is based on an elastic deformation of at least one spring component of the guidance and attachment system, independently of the guide part, that is to say that this deformation n has no impact on the components of the first device participating in the guidance function.
  • the holding force is defined only by the elastic deformation of the spring tube 15, without risk of plastic deformation of the bar 12, or risk of bending of the bar 12.
  • the holding force is also independent of the mesh material of end 25, in particular of the material of the notch 22 of the end mesh 25, which comes directly to cooperate with the spring tube 15 during the implementation of the attachment of the mesh 25 by the spring tube 15.
  • the elements 120, 13, 13 ′ of the guide strip 12 can be found in a material of the 904L steel type or in gold.
  • the spring tube 15 can be in a spring material of the Nivaflex® type, or in a super elastic alloy of nickel and titanium such as Nitinol.
  • the geometry of the tube can of course be adapted in order to optimize its mechanical characteristics.
  • the tube can be split, in particular on either side, or even have one or more cutouts.
  • the elastic hooking function is also independent of the materials used for the adjustment meshes and the end mesh.
  • the holding force generated by the attachment function is constant over time, whatever the bracelet used.
  • the links of the bracelet cooperating with the guide and attachment system, in particular the adjustment link or links and the end link may be made of 904L steel, gold, or even platinum.
  • the figures 6 to 9 illustrate a guide and attachment system 10 of a length adjusting device according to a second embodiment of the invention.
  • This device is likewise integrated in a clasp cover 24 and participates in an adjustment of the length of the bracelet.
  • This adjustment differs from the solution described with reference to the first embodiment, in particular in that the guidance and attachment system 10 belonging to the first embodiment is movable in longitudinal grooves or slides 6 arranged in the vertical walls 2c1, 2c2 of the cover 24.
  • the figures 6 and 7 illustrate the arrangement in a short configuration of the bracelet.
  • Side adjustment meshes 23, 23 ′ are positioned so that the second pivot axis 26 is oriented towards the inside of the cover 24 of the clasp with respect to the first axis A1.
  • the end mesh 25 of the bracelet and the pivot axis 26 are thus in the retracted position opposite the end 1b of the bracelet.
  • the end mesh 25 comprises a finger 28 cooperating with a toothing 8 arranged in the bottom 240 of the cover, to block the movement, corresponding substantially to a translational movement, of the length adjusting device of the bracelet.
  • the teeth of this toothing 8 define several positions of the end mesh 25 of the bracelet opposite the cover 24 of the clasp and therefore several lengths of the bracelet.
  • the finger 28 cooperates with the first tooth of the toothing 8 from the inside of the cover 24, which corresponds to the shortest position of the bracelet.
  • the figure 8 illustrates the adjustment device during actuation for adjusting the length.
  • the end link 25 of the bracelet is manually rotated around its pivot axis 26 arranged between the adjustment links 23, 23 ', with a predetermined force allowing it to be released from its elastic attachment in the attachment device of the system. guide and attachment, while releasing his finger 28 from the teeth 8 of the clasp cover.
  • the adjustment device is thus free to move longitudinally in the lateral grooves of the clasp.
  • the end link 25 is folded down towards the bottom 240 of the cover, so that it comes to hook elastically in the hooking device of the guide and hooking system 10 , while blocking its longitudinal position by positioning its finger 28 in a new tooth of the toothing 8 of the clasp.
  • the guide and attachment system 10 is more particularly illustrated by the cross section of the figure 9 .
  • This guide and attachment system 10 is very close to that of the first embodiment. It comprises a bar 12 which differs from the bar of the first embodiment in that it is guided, at its lateral ends, by pads 17, 17 'housed in grooves arranged longitudinally in the vertical walls 2c1, 2c2 of the cover 24.
  • the bar 12 is capable of being guided by the grooves, according to a movement which follows the curvature of the cover 24, and which approaches a longitudinal translation.
  • a spring tube 15 is arranged coaxially with the bar 12, in a similar manner to the first embodiment.
  • the mesh 25 may also include a notch 22 whose conformation is provided to generate adequate compression forces of the spring tube 15.
  • the connection between the spring tube 15 and the bar 12 of the guide and attachment system 10 is such that the spring tube 15 is independent of the bar 12 and vice versa.
  • the spring tube 15 has, at each of its ends, a portion 16, 16 'provided with a guide surface, which is designed to cooperate with a complementary surface for guiding the adjustment meshes 23, 23', work for example by a bore 230, 230 'of these meshes.
  • the spring tube 15 is arranged and dimensioned so that the internal diameter of the spring tube 15, once compressed, does not collide with the outer periphery of the bar 12. Its elastic deformation is therefore free, has no impact on the bar 12, and does not harm its guiding function.
  • the bar 12 has no influence on the elastic function of the spring tube 15 in its guiding operation.
  • the guide of the spring tube 15 by the adjustment links 23, 23 ′ can be carried out with a clearance defined in such a way that the spring tube 15 can be driven in rotation or not under the effect of the notch, before and / or during the compression of the spring tube 15.
  • the figures 10 to 14 illustrate a guidance and attachment system 30 belonging to a third embodiment of the length adjustment device, which is similar to that shown in figure 1 .
  • the device for adjusting the length of a bracelet operates in a similar manner to that described with reference to the first embodiment.
  • the guidance and attachment system 30, particularly shown in the figure 10 comprises a bar 32 comprising a first hollow axis 34 provided with an external periphery 33 intended to guide an adjustment mesh 23.
  • the bar 32 comprises a second hollow axis 39, housed within the first hollow axis 34, intended to connect a adjustment mesh 23 to a clasp cover 24, in particular by means of a tenon 38 disposed at a first end of the bar 32.
  • the two hollow axes are secured by riveting 37.
  • a helical spring 35 is integrated within the hollow volume of the bar 32, in prestressed configuration. It cooperates with a ball 45 positioned partly within the hollow volume of the bar, in a movable manner, and partly projecting outside the bar 32, at its second end.
  • the helical spring 35 exerts a force on the ball 45, oriented towards the outside of the bar 32.
  • the ball 45 is thus held in abutment against an inner side wall of the bar while projecting at the second end of the bar 32.
  • the figure 11 illustrates a device for adjusting the length of a bracelet, which incorporates two guide and hooking devices 30, 30 ′ as described above to connect two adjustment links 23, 23 'to the cover 24 of the clasp, along an axis of rotation A1.
  • the figure 11 illustrates the long configuration of the bracelet, in which a second axis of rotation A2 linked to the two adjustment links 23, 23 'is oriented towards the outside of the clasp.
  • An end link 25 of the bracelet is fixed to a pivot axis 26 arranged around this second axis of rotation A2.
  • the figure 12 illustrates in section view the short configuration of the device for adjusting the length of a bracelet. It is obtained by the rear rotation of the adjustment meshes, around the axis A1, according to a guide around the peripheral surface of the bar 32. The principle is similar to that described with reference to the first embodiment.
  • the figure 13 illustrates the elastic attachment function of the guidance and attachment system 30 in the short configuration of the strap length adjustment device.
  • the end mesh 25 comes to cooperate with the balls 45 of the guidance and attachment system 30.
  • This end mesh 25 has the particularity of comprising at least one notch 29, 29 'arranged in a hollow in a of its side walls.
  • Each notch 29, 29 ′ can for example take the form of a cutout delimited by one or more inclined flanks with respect to the side walls of the mesh 25.
  • the guidance and attachment system also brings together two separate devices, respectively for guidance and attachment.
  • the guide device comprises the bar 32, and more precisely at least part of its peripheral surface, as well as possibly its first end.
  • the attachment device comprises the helical spring 35 and the ball 45.
  • the two guiding and attachment functions are thus provided independently of each other.
  • the hooking function is moreover independent of the meshes used, in particular of the material used for the meshes of the bracelet.
  • the holding force is defined only by the elastic deformation of the springs 35, without risk of plastic deformation of the notch (s), or risk of bending of the bar 12.
  • the bar 32 is substantially cylindrical, around an axis A1, and provides rotational guidance of an adjustment mesh 23 around this axis A1.
  • the helical spring 35 and the ball 45 are arranged along this same axis A1, the spring working in compression in the direction of the axis A1.
  • the ball 45 is movable in the direction of the axis A1.
  • the helical spring 35 and the ball 45 are thus arranged around the axis A1.
  • the bar 32 surrounds the helical spring and the ball 45.
  • the axis A1 substantially forms an axis of symmetry for the elastic attachment device.
  • the adjustment device implements two guidance and attachment systems 30, 30 ′.
  • balls 45, 45 ′ of the guidance and attachment systems 30, 30 ′ can be replaced by studs or any other component whose geometry is adapted to constitute an adequate interface between a spring and a notch: we will use therefore the term ball in the broad sense, making it possible to include geometries which are not necessarily spherical.
  • the figures 15 to 18 illustrate a guidance and attachment system 40 belonging to a fourth embodiment of the device for adjusting the length of a bracelet within a clasp.
  • Such a guidance and attachment system comprises a bar 42 forming a hollow axis. Part of its outer periphery 43 is intended to guide an adjustment mesh 23.
  • a helical spring 35 is integrated within the hollow volume of the bar 42, in prestressed configuration. The helical spring 35 cooperates with two balls, a first ball 45 arranged at a first end of the bar oriented towards an end mesh 25, and a second ball 46 arranged at a second end of the bar oriented towards a wall 2c1, 2c2 of the cover 24 of the clasp, positioned partly within the hollow volume of the bar 32, in a mobile manner, and projecting outside the bar, at each end.
  • the bar 42 includes a movable stop 47 between the two balls 45, 46.
  • the balls can be replaced by studs or any other component whose geometry is suitable for constitute an adequate interface between a spring and a notch.
  • the figure 15 shows a clasp comprising two guide and attachment systems 40, 40 'belonging to the fourth embodiment. These two guidance and attachment systems are aligned along the same axis A1, and both cooperate with an end link 25 in the central position, similar to the clasp according to the embodiment. previous.
  • the figure 15 illustrates an attachment configuration, in which the first balls 45, 45 'respective of the two guidance and attachment systems 40, 40' are housed in a notch 29, 29 'respective arranged in each side wall of the mesh end 25.
  • each guide and attachment system 40, 40 ′ ensures the attachment of the end mesh 25 and maintains the chosen adjustment configuration in a stable manner.
  • the respective second balls 46, 46 'of the two guide and attachment systems 40, 40' are housed in notches 9, 9 'formed respectively, in particular by machining, on the vertical walls 2c1, 2c2 of the cover 24.
  • each bar 42, 42 ' is arranged to be able to move in pairs of grooves 6a, 6b and 6a', 6b 'formed in the vertical side walls 2c1, 2c2 of the cover of the clasp, as in the second embodiment of the invention described above.
  • the outer peripheries 43, 43 'of the bars also form second guide surfaces which receive a guide shoe 17, 17' intended to be guided within the pairs of grooves 6a, 6b and 6a ', 6b' of the cover of the clasp.
  • each guide and hooking system 40, 40 ′ fulfills two simultaneous elastic hooking functions, with a mesh on the one hand and with the clasp, in particular the clasp cover 24, on the other hand.
  • the central mesh 25 When the central mesh 25 is released from its elastic attachment, it simultaneously releases the two abovementioned attachments, which has the effect of allowing the longitudinal displacement of the adjustment meshes 23, 23 ′ and their guidance and attachment systems 40, 40 'respectively along the grooves.
  • this architecture allows a double adjustment.
  • the adjustment links 23, 23 ′ are moreover mobile in rotation around the guide devices, which makes it possible to obtain the same effect as in the first mode. embodiment, namely a rotation of the end mesh 25 opposite the adjustment meshes 23, 23 '.
  • the figure 16 represents a short configuration of the bracelet for a given position of the second balls 46, 46 'within the notches 9, 9'.
  • the figure 18 represents, for its part, a long configuration of the bracelet for a given position of the second balls 46, 46 'within the notches 9, 9'.
  • the adjustment links 23, 23 ' are rotated 180 degrees relative to their position on the figure 16 , thus offering an additional extension.
  • FIGS. 19 and 20 illustrate a guidance and attachment system 50 belonging to a fifth embodiment of the device for adjusting the length, similar to that shown in figure 13 .
  • the length adjustment device of a bracelet operates in a similar manner to that described with reference to the third embodiment of the length adjustment device.
  • the guidance and attachment system 50 comprises a bar 52 having the shape of a first hollow axis 54 provided with an external periphery 53 intended to guide an adjustment mesh 23.
  • the bar 52 therefore forms a device for guiding the guide and attachment 50 according to this embodiment of the length adjusting device.
  • This bar 52 is further intended to connect an adjustment link 23 to a clasp cover 24, by means of a pin 58 disposed at a first end of the bar 52.
  • a helical spring 55 is integrated within the hollow volume of the bar 52, in the prestressed configuration when the cover 24 is assembled. Its function is to maintain the pin 58 in a stable manner within a bore 4 arranged in a vertical wall of the cover 24 of the clasp.
  • the device for adjusting the length of a bracelet incorporates two bars 52, 52 'as described above for connecting two adjustment links 23, 23' to the cover 24 of the clasp, along an axis of rotation A1.
  • the adjustment links 23, 23 ′ are moreover connected to an end link 25, as in the previous embodiments, by a link articulated around an axis 26.
  • the adjustment mesh further comprises a cylindrical opening in which is housed a second bar 62, extending transversely over the entire width of the end mesh 25.
  • This second bar has a hollow axis 63 which incorporates a helical spring 65, in prestressed configuration.
  • This helical spring 65 cooperates with two balls 75, 75 ' positioned partly within the hollow volume of the axis 63, in a movable manner, and partly projecting outside the axis 63, respectively at its two lateral ends.
  • FIG. 20 illustrates the device for adjusting the length of a bracelet, in the long configuration of the bracelet, in which a second axis of rotation A2 linked to the two adjustment meshes 23, 23 ′ is oriented towards the outside of the clasp.
  • An end link 25 of the bracelet is fixed to the adjustment links 23, 23 ′ by a pivot axis 26 arranged around this second axis of rotation A2.
  • the figure 19 illustrates the device for adjusting the length of a bracelet, in the short configuration of the bracelet, in which the rear rotation of the adjustment links 23, 23 ′, around the axis A1, according to a guide around the peripheral surface of the bars 52, 52 'makes it possible to position the pivot axis 26 towards the inside of the clasp cover 24.
  • the balls 75, 75 'of the end mesh 25 cooperate with notches 59, 59' arranged in the hollow in the side walls of the adjustment meshes 23, 23 ', centered substantially on the axis A1 , in the extension of the axis of the bars 52, 52 '.
  • the notches 29, 29 ' can for example take the form of a cut delimited by one or more sides inclined with respect to the side walls of the adjustment meshes 23, 23'.
  • the side walls of the adjustment meshes 23, 23 ′ are preferably vertical.
  • the second bar 62 integrated within the end mesh 25 represents a device for hooking up the guide and hooking system 50.
  • the vertical walls of the cover 24 have several bores 4 distributed longitudinally to provide additional length adjustment by simply moving the meshes 23, 23 'and inserting their pins 58, 58' in one of these bores 4 opposite.
  • this fifth embodiment corresponds to the third embodiment, in which the means forming the latching function have been rearranged between the adjustment meshes 23, 23 'and the mesh end 25, to achieve equivalent operation and a similar result.
  • the guidance and attachment system also brings together two separate devices, respectively for guidance and attachment.
  • the guide device comprises at least one bar 52, and more precisely at least part of its peripheral surface 53.
  • the attachment device comprises the helical spring 65 and the balls 75, 75 '.
  • the two guidance and attachment functions are thus provided independently of one another.
  • the hooking function is moreover independent of the meshes used, in particular of the material used for the meshes of the bracelet.
  • the holding force is defined only by the elastic deformation of the spring 65, without risk of plastic deformation of the notch or notches, or risk of bending of the bar.
  • the balls 45, 45 ′ of the guidance and attachment systems 30, 30 ′ can be replaced by studs or any other component whose geometry is adapted to constitute an adequate interface between a spring and a notch: we will use therefore the term ball in the broad sense, making it possible to include geometries which are not necessarily spherical.
  • the invention therefore relies on the optimal arrangement of an elastic attachment device, in combination with a guide device, to obtain a compact assembly allowing the definition of improved performance and aesthetic results.
  • This combination of the two guidance and attachment devices is advantageously carried out around the same axis, which may be an axis of symmetry and / or an axis of rotation when implementing a guidance function.
  • these two devices might not have axial symmetry.
  • their axes could be slightly offset and parallel.
  • one of the two devices at least partially surrounds the other device.
  • first element for example a first bracelet link or a first clasp blade
  • second element such as for example a second bracelet link or a second clasp blade
  • the guide device can be arranged in the first element and the elastic hooking device in the second element, so that these two devices are aligned on the same transverse axis in the hooking position of the two elements.
  • elastic hooking device we mean a device which comprises at least one spring element, which deforms to hook a component to one or more other component (s), in an elastically reversible manner.
  • This elastic attachment can be practiced against a bracelet mesh, said mesh participating passively (without deformation) in the attachment.
  • This elastic attachment can be practiced against a fixed part of a bracelet or a clasp.
  • guide device a device provided with at least one means, in particular a surface, for guiding a component with respect to a separate component.
  • This guidance can be a rotation and / or a displacement in a groove, in particular a displacement corresponding substantially to a translation or a displacement corresponding to the curvature of a clasp cover. It can be implemented with a bracelet link, in particular an adjustment link, and / or a clasp.
  • the two guiding and hooking devices are independent, that is to say that they implement their respective functions without influencing the other device.
  • the guidance and attachment system is associated with a device for adjusting the length of a bracelet within a clasp, as described above.
  • an adjustment mesh and possibly at least part of an end mesh is placed under a cover formed by the clasp, this mechanism thus remaining hidden.
  • the clasp can be of different types, with two or three folding blades.
  • the guidance and attachment system could be simply associated with a blade of a clasp, and allow the articulation and the attachment of this blade.
  • the guidance and attachment system can thus be implemented for any system linked to a bracelet requiring variations in geometry.
  • the guide and attachment system could be associated with a link or a bracelet link, whatever its position relative to the clasp.
  • the invention also relates to a bracelet and / or a clasp and / or a wristwatch, which incorporates at least one guidance and attachment system, and a length adjustment device.

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  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Claims (17)

  1. Vorrichtung zur Einstellung der Länge eines Armbandes, welche ein Führungs- und Einrastsystem (10, 30, 40, 50) umfasst, das wenigstens ein Einstellglied (23) umfasst, das drehbeweglich um eine Drehachse (A1) angebracht ist, die durch eine Führungsvorrichtung des Führungs- und Einrastsystems (10, 30, 40, 50) definiert ist, wobei dieses Führungs- und Einrastsystem (10, 30, 40, 50) außerdem eine elastische Einrastvorrichtung umfasst, die eine elastische Eigenschaft aufweist, um eine elastische Einrastfunktion zu erfüllen, wobei diese zwei Vorrichtungen zur Führung bzw. zum elastischen Einrasten alle beide um die Achse (A1) herum angeordnet sind, insbesondere bei der Durchführung der Einrastfunktion, wobei die elastische Einrastvorrichtung eine elastische Blockierung eines mit dem Einstellglied (23) verbundenen Endgliedes (25), insbesondere die relative elastische Blockierung des Endgliedes (25) gegenüber dem Einstellglied (23), in wenigstens einer Konfiguration der Einstellvorrichtung sicherstellt,
    dadurch gekennzeichnet, dass die Führungsvorrichtung einen Federsteg umfasst, der ein Ende umfasst, das für eine Verbindung mit einem Schließdeckel (24) über Gleitschuhe und/oder einen Zapfen geeignet ist, und einen Außenumfang umfasst, der eine Führungsfläche bildet, die geeignet ist, ein Einstellglied (23) in der Drehbewegung und/oder im Wesentlichen translatorisch in Bezug auf einen Schließdeckel (24) zu führen, dadurch, dass das Einstellglied (23) eine zweite Schwenkachse (26) mit einer Achse (A2) umfasst, die von der Achse (A1) des Führungs- und Einrastsystems (10, 30, 40, 50), um welche ein Endglied (25) eines Armbandes angeordnet ist, verschieden ist, und dadurch, dass das Endglied (25) mit der elastischen Einrastvorrichtung zusammenwirkt, welche seine elastische Blockierung gegenüber dem Einstellglied (23) sicherstellt.
  2. Vorrichtung zur Einstellung der Länge eines Armbandes nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die zwei Vorrichtungen zur Führung bzw. zum elastischen Einrasten geeignet sind, ihre jeweiligen Funktionen unabhängig voneinander zu erfüllen.
  3. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich die zwei Vorrichtungen zur Führung bzw. zum elastischen Einrasten koaxial entlang ein und derselben Achse (A1) erstrecken.
  4. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zwei Vorrichtungen zur Führung bzw. zum elastischen Einrasten vollständig oder teilweise von unterschiedlichen Komponenten gebildet werden.
  5. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung zum elastischen Einrasten ein Federelement umfasst, insbesondere eine Schraubenfeder (35, 65) oder eine Rohrfeder (15).
  6. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Führungsvorrichtung mindestens einen Federsteg (12, 32, 42, 52) umfasst.
  7. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie einen Federsteg (12) umfasst, der eine Führungsfläche auf wenigstens einem Teil seines Umfangs und im seitlichen Bereich des Führungs- und Einrastsystems bildet, und eine Rohrfeder (15), die im mittleren Teil des Führungs- und Einrastsystems angeordnet ist und um den Federsteg (12) herum angeordnet ist, wobei diese Rohrfeder (15) für eine elastische Verschiebung in Richtung des Federsteges (12), ohne den Federsteg (12) zu berühren, geeignet ist, um die Funktion des elastischen Einrastens zu erfüllen.
  8. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sie einen Federsteg (32) umfasst, der wenigstens eine Führungsfläche auf einem seitlichen Teil des Führungs- und Einrastsystems umfasst, und eine Kugel (45), die unter der Wirkung einer vorgespannten Feder (35), die in einem Hohlraum des Federsteges (32) aufgenommen ist, parallel zur Achse des Federsteges (32) beweglich ist, wobei die Kugel (45) aus dem Federsteg (32) hinausragen kann.
  9. Vorrichtung zur Einstellung der Länge eines Armbandes nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Federsteg (32) einen Zapfen (38) umfasst, der an einem seiner beiden Enden angeordnet ist, damit er geeignet ist, ein Einstellglied (23) mit einem Schließdeckel (24) zu verbinden, und einen Außenumfang (33) umfasst, der eine Führungsfläche bildet, die geeignet ist, ein solches Einstellglied (23) bei einer Schwenkbewegung in Bezug auf einen solchen Schließdeckel (24) zu führen.
  10. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sie einen Federsteg (42) mit wenigstens einer Führungsfläche auf einer Umfangsfläche umfasst, und zwei Kugeln, eine mittlere (45) und eine seitliche (46), an den beiden Enden des Federsteges (42), die unter der Wirkung ein und derselben vorgespannten Feder (35) und eines Anschlags (47), die in einem Hohlraum des Federsteges (42) aufgenommen sind, parallel zur Achse des Federsteges (42) beweglich sind, wobei die Kugeln (45, 46) aus dem Federsteg hinausragen können.
  11. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Endglied (25) wenigstens eine Raste (22) umfasst, welche eine Rohrfeder (15) des Führungs- und Einrastsystems zusammendrückt, um ihr elastisches Einrasten zu erreichen, oder wenigstens eine Wand des Endgliedes eine Raste (29) umfasst, welche mit einer durch eine Feder (35) vorgespannten Kugel (45) in Eingriff gelangt, um ihr elastisches Einrasten zu erreichen.
  12. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Endglied (25) wenigstens eine Raste (22) umfasst, welche eine Rohrfeder (15) des Führungs- und Einrastsystems zusammendrückt, um ihr elastisches Einrasten zu erreichen, dadurch, dass die Führungsvorrichtung des Führungs- und Einrastsystems (10) einen Federsteg (12) umfasst, der eine Führungsfläche umfasst, die mit wenigstens einem Einstellglied (23) zusammenwirkt, um seine Schwenkbewegung zu führen, und dadurch, dass die Rohrfeder (15) an wenigstens einem ihrer Enden einen Abschnitt (16) aufweist, der mit einer Führungsfläche versehen ist, welche dazu vorgesehen ist, mit einer komplementären Führungsfläche (230) des wenigstens einen Einstellgliedes (23) zusammenzuwirken, derart, dass die Rohrfeder (15) von dem Federsteg (12) unabhängig ist, und umgekehrt.
  13. Vorrichtung zur Einstellung der Länge eines Armbandes nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das wenigstens eine Einstellglied (23) eine Durchgangsbohrung für die Aufnahme des Federsteges (12) und außerdem eine weitere Bohrung, welche die komplementäre Führungsfläche (230) bildet und ein Ende der Rohrfeder (15) aufnimmt, umfasst.
  14. Vorrichtung zur Einstellung der Länge eines Armbandes nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Führungsvorrichtung innerhalb eines Einstellgliedes (23) angeordnet ist, und dadurch, dass die elastische Einrastvorrichtung innerhalb eines Endgliedes (25) angeordnet ist, derart, dass diese zwei Vorrichtungen zur Führung bzw. zum elastischen Einrasten in einer Position des Ineinandergreifens der zwei Vorrichtungen auf derselben Querachse (A1) ausgerichtet sind.
  15. Faltschließe für ein Armband, dadurch gekennzeichnet, dass sie wenigstens eine Einstellvorrichtung nach einem der vorhergehenden Ansprüche umfasst.
  16. Armband, dadurch gekennzeichnet, dass es eine Vorrichtung zur Einstellung der Länge des Armbandes nach einem der Ansprüche 1 bis 14 oder eine Faltschließe nach dem vorhergehenden Anspruch umfasst.
  17. Armbanduhr, dadurch gekennzeichnet, dass sie wenigstens ein Armband nach dem vorhergehenden Anspruch umfasst.
EP17205066.8A 2016-12-05 2017-12-04 Vorrichtung zur regulierung der länge eines armbands Active EP3329797B1 (de)

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EP3329797A1 (de) 2018-06-06
US20180153267A1 (en) 2018-06-07
US10722006B2 (en) 2020-07-28
CN108143057A (zh) 2018-06-12
CN108143057B (zh) 2021-07-09
JP7085338B2 (ja) 2022-06-16
JP2018118030A (ja) 2018-08-02

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