EP3420839B1 - Verschluss für armbanduhr - Google Patents

Verschluss für armbanduhr Download PDF

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Publication number
EP3420839B1
EP3420839B1 EP17177805.3A EP17177805A EP3420839B1 EP 3420839 B1 EP3420839 B1 EP 3420839B1 EP 17177805 A EP17177805 A EP 17177805A EP 3420839 B1 EP3420839 B1 EP 3420839B1
Authority
EP
European Patent Office
Prior art keywords
clasp
movable blade
blade
parts
articulation
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
EP17177805.3A
Other languages
English (en)
French (fr)
Other versions
EP3420839A1 (de
Inventor
Mathieu Cusin
Nicolas Dufraine
James Rejzner
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
Original Assignee
Rolex 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 Rolex SA filed Critical Rolex SA
Priority to EP17177805.3A priority Critical patent/EP3420839B1/de
Priority to JP2018119523A priority patent/JP7250445B2/ja
Priority to US16/016,986 priority patent/US10791806B2/en
Priority to CN201810673679.9A priority patent/CN109106012B/zh
Publication of EP3420839A1 publication Critical patent/EP3420839A1/de
Application granted granted Critical
Publication of EP3420839B1 publication Critical patent/EP3420839B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A44C5/2042—Fasteners provided with a turnable clamping lever
    • 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
    • A44C5/243—Automatic folding spring closure
    • 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

Definitions

  • the present invention relates to a clasp for a wristwatch, as well as a bracelet and a wristwatch as such comprising such a clasp.
  • the first solution is simple and consists in providing the ends of each strand with cooperation means, for example in the form of a simple loop and a barb on the one hand cooperating with holes on the other hand.
  • cooperation means for example in the form of a simple loop and a barb on the one hand cooperating with holes on the other hand.
  • Such a solution has the drawback that when the cooperation means are opened, the two strands of the bracelet are immediately separated and entail a risk of the wristwatch falling.
  • Another solution consists in providing an intermediate element of the clasp type, arranged between the two bracelet strands, which always remains integral with the ends of these two strands.
  • a clasp occupies two configurations: a closed configuration, provided for wearing the watch, in which the strap and the clasp extend around the circumference of the wrist while having a total length allowing the wristwatch to be held in place, and a open or deployed configuration which makes it possible to increase the length of the clasp and therefore of the bracelet, by separating the two ends of the two strands of the bracelet, without detaching them from the clasp, to allow passage of the hand and removal of the watch.
  • this open configuration of the clasp the two strands of the bracelet are not separated, which minimizes the risk of the watch falling.
  • a first objective is the search for optimal comfort when wearing the bracelet. For this, it is advantageous for the clasp to best match the contour of a wrist, even a small wrist, when the clasp is in the closed configuration.
  • a second objective is to achieve a large opening surface of the bracelet in the deployed configuration of the clasp, to facilitate the passage of a hand, suitable for the passage of a large hand.
  • a difficulty in the production of a clasp therefore consists in defining the compromise between the fact of marrying the wrist of a wearer of a wristwatch in an adequate and comfortable manner and the fact of offering a sufficiently large opening for the passage of the wearer's hand, regardless of the dimensions of the wearer's hand and wrist.
  • Such solutions with clasp are disclosed for example in the documents EP 0 344 620 A1 , CH 709 911 A1 , JP S53 166673 U and CH 663 522 A5 .
  • the document EP1654950 describes for example a clasp of the state of the art.
  • a clasp is illustrated by the figures 1 to 3 . It comprises two blades 1, 2 hinged together around an axis A1 at their first ends. Each of these two blades 1, 2 comprises a connection respectively with a strap strand 101, 102 via a respective axis A2, A3 positioned at their second end.
  • the first blade 1, commonly called the center blade is more precisely linked to a first strand 101 of bracelet 100 via a cover 3.
  • the figure 1 illustrates the deployed configuration of the clasp, in which the two blades 1, 2 are deployed, namely that they form an obtuse angle, and extend substantially continuously around their axis A1 of articulation to maximize the total length of the bracelet and facilitate the passage of one hand.
  • the picture 2 illustrates an intermediate configuration, in which the first blade 1 is brought closer to the second blade 2 by rotation around the axis A1 of articulation, so as to form an acute angle.
  • the picture 3 illustrates the closed configuration of the clasp, in which the blades 1, 2 are folded over one another, namely that they form a substantially zero angle, and retained in this configuration by a locking device, which comprises a hook 6 arranged at the end of the first blade and cooperating with a locking stud 5 carried by the second blade 2.
  • a lever 4 carried by the cover 3 is adapted to actuate the locking device to allow its opening and the return to the deployed configuration.
  • Such a state-of-the-art solution meets the comfort requirements through the two blades 1, 2 which have a substantially identical curvature r1, r2 in order to be able to be superimposed in a closed configuration while best marrying the shape of a wrist.
  • the first blade is a mobile blade 1, which performs a rotation of substantially 180 degrees around its axis A1 of articulation between the two closed and deployed configurations of the clasp.
  • the length of the two blades 1, 2 is studied so that they can also marry the shape of a small wrist.
  • the limited length of the blades of the clasp has the effect of limiting the opening surface offered by the clasp in the deployed configuration, which can hinder the passage of a hand, particularly in the case of a large hand.
  • Increasing the length of the slats would not be a satisfactory solution because it could affect wearing comfort, especially in the case of a small wrist.
  • the invention seeks to define a clasp solution making it possible to achieve an optimal compromise between wearing comfort and a satisfactory opening for the passage of a hand.
  • the invention seeks to define a clasp of restricted size, of user-friendly handling and/or of attractive aesthetics.
  • the movable blade 1 having pivoted by substantially 180 degrees around its axis of articulation from the closed configuration of the clasp, it is in an inverted position vis-à-vis the wrist with respect to its positioning in the closed configuration, in which its curvature r1 is therefore reversed, so that it has a substantially convex shape seen from the wrist.
  • This convexity of the blade 1 can induce discomfort when it comes to placing the wristwatch on the wrist of a wearer, in particular a wearer with a large hand.
  • the blade 1 has a shape that can form an obstacle, likely to abut against the wearer's hand during the passage of the watch.
  • the invention in particular brings an improvement to such a clasp of the state of the art by allowing at least one movable blade to have a second predefined shape, which facilitates the passage of a hand.
  • a movable blade in its second predefined shape defines a favorable overall shape of the clasp in its deployed configuration, without necessarily increasing the length of the blades of the clasp. This length is advantageously between 20 and 60 mm.
  • Such a solution is therefore based on at least one movable blade of a clasp which has a first predefined shape adapted to the closed configuration of the clasp, and which can have a second different predefined shape in a deployed configuration of the clasp to facilitate the passage of a hand.
  • Such a solution thus makes it possible to retain the optimum comfort of the clasp in its closed configuration, while optimizing the passage surface of a wrist in the deployed configuration.
  • the clasp has an overall structure very close to the solution of the state of the art described with reference to the figures 1 to 3 , whose identical or similar elements bear the same references and will not be described again in detail.
  • the mode of embodiment of the invention differs mainly from the state of the art by its movable blade 1.
  • the movable blade 1 comprises two parts 11, 12 of substantially the same length, hinged together via a hinge pin A11. This articulation is delimited angularly by stops 11a, 11b of the first part 11, cooperating with corresponding stops 12a, 12b of the second part 12. These stops unequivocally define first and second forms of the movable blade 1, in which the two parts 11, 12 occupy different respective positions.
  • the movable blade 1 can indeed occupy a first shape C1 adapted to the closed configuration of the clasp.
  • This first shape is therefore close to the shape of the second blade 2 on which the mobile blade 1 rests in the closed configuration of the clasp, particularly illustrated by the figure 8 .
  • the figure 4 represents the clasp in the deployed configuration, in which the movable blade 1 has retained its first shape C1: in such a shape, the deployed clasp is similar to that of the state of the art represented by the figure 1 .
  • the movable blade 1 By its rotation around the axis A1 of articulation, the movable blade 1 has reversed its positioning vis-à-vis the wrist, and its curved, concave shape seen from the wrist P in the closed configuration, intended to match the shape of a wrist P, becomes convex seen from the wrist P once the angle between the two blades has become obtuse.
  • the movable blade 1 can however have a second predefined shape C2, illustrated by the figure 5 , in which the two parts 11, 12 have been rotated around their axis of articulation A11. This rotation has the effect of separating the axis of articulation A11, as well as the two parts 11, 12 of the movable blade 1, from the wrist P.
  • the two parts 11, 12 of the mobile blade 1 which were on the side of the wrist P with respect to the segment S connecting the two axes A1, A2 positioned at the two ends of the mobile blade 1 in its first shape C1 illustrated on the figure 4 , are transferred beyond this segment S into the second form C2 of the mobile blade, illustrated by the figure 5 .
  • the mobile blade 1 In its second shape, the mobile blade 1 thus protrudes beyond the segment S, according to a view from the wrist P. In this second predefined shape of the mobile blade, its convexity is therefore suppressed. It even has at least one concave portion. In its second form C2, the movable blade 1 no longer has a shape likely to form an obstacle or a hindrance to the passage of a hand.
  • the deployed clasp thus defines a passage surface for a hand that is increased with respect to this surface for passage of a hand in the configuration of the clasp of the figure 4 .
  • the distance to the segment S of the axis of articulation A11 is substantially identical in the two predefined shapes C1, C2 of the mobile blade, but the latter is positioned on either side of this segment S in these two shapes.
  • this characteristic allows the movable blade 1 in its second form C2 to extend the blade 2 with substantially the same curvature when the clasp occupies its configuration of the figure 5 .
  • the amplitude of the respective rotation of the two parts 11, 12 of the movable blade, as well as their two extreme positions, are perfectly predefined by the stops provided on the parts 11, 12.
  • the second abutments 11b, 12b of respectively the parts 11, 12 bear against one another, as illustrated by the figure 6 .
  • their first stops 11a, 12a bear against one another.
  • the amplitude of movement of the parts 11, 12 of the movable blade 1 between their two predefined positions, corresponding to each of the predefined shapes of the clasp is preferably of the order of 60°. This amplitude is advantageously between 20° and 80° inclusive.
  • This controlled amplitude or displacement of the rotation of the two parts 11, 12 of the movable blade not only allows the movable blade 1 to have a second advantageous shape, but also to promote user-friendly handling of the clasp.
  • this clearance makes it possible to achieve the main sought-after objective of optimizing the passage of a wearer's hand. Too little travel will have little effect on the moving blade, which would retain the drawbacks of the state of the art. Too great a clearance would have the effect of reducing the opening surface of the deployed clasp, which would therefore have an effect contrary to that sought.
  • the closure of the clasp comprises the rotation of the mobile blade 1 around the axis A1 of articulation up to an intermediate configuration, an example of which is illustrated by the figure 7 , in which the first part 11 of the movable blade has reached its final position resting against the second movable blade 2, while its second part 12 remains apart because the movable blade 1 has remained in its second shape C2.
  • the continuation of the same movement causes the rotation of this second part 12 around the axis of articulation A11, until the movable blade 1 regains its first shape C1, which corresponds at the same time to the final position of the mobile blade 1, superimposed on the second blade 2, in the closed position of the clasp.
  • the second blade 2 advantageously has a hollow surface forming a housing 2a for receiving the central articulation A11 of the movable blade 1, visible on the figure 8 , which promotes the rotation of the second part 12 relative to the hinge axis A11 while the first part 11 is already in place against the blade 2, in the intermediate configuration, and the rotation of the two blades 1, 2 between them around their axis A1 of articulation is finalized.
  • This housing 2a can be formed by a slight milling 2a carried out in the body of the second blade 2.
  • the clasp according to the embodiment of the invention is equipped with a locking device which makes it possible to maintain the two blades 1, 2 fixed to each other, in the closed configuration of the clasp, as represented by the figure 8 .
  • the invention does not relate specifically to the device for locking and/or unlocking the slats, but it is advantageously compatible with a user-friendly and safe locking device which is particularly efficient, which is similar to the locking device described in the document EP1654950 .
  • the two shapes C1, C2 of the mobile blade are predefined shapes in that they are reached in a unique way by a voluntary movement of the wearer of the watch until they reach a stop.
  • One or both of the predefined shapes can be stable shapes or not.
  • a stable form can for example be obtained by the combination of a certain resistance voluntarily imposed at the level of the articulation between the two parts 11, 12 around the axis of articulation A11 and the stops.
  • the two parts 11, 12 of the moving blade have been chosen to be substantially the same length, their axis of articulation A11 being positioned substantially in the middle of the moving blade 1. Alternatively, these parts could have a different length.
  • the movable blade 1 can comprise more than two articulated parts.
  • the figures 9 to 12 illustrate a second variant embodiment in which the movable blade 1 comprises four parts 11, 12, 13, 14 which are hinged in pairs by respective hinge pins A11, A12 and A13.
  • Each of these joints is similar to the A11 joint described previously, with movement limited by stops, defining two predefined positions, as is for example illustrated with the two positions of the A13 joint by the figures 11 and 12 , with the aid of the first stops 13a, 14a and the second stops 13b, 14b respectively of the two parts 13, 14.
  • the angular movement of the parts 12, 13, 14 relative respectively to the parts 11, 12, 13 is here order of 30°.
  • the angular movement of the various parts depends in particular on the number of joints.
  • the amplitude of movement of the different parts of movable blade 1 advantageously remains between 20° and 80°.
  • the movable blade 1 can also have two predefined shapes, depending on whether each articulation A11, A12, A13 is in a position defined by first stops or by second stops.
  • the figure 9 illustrates the first predefined shape C1 of the mobile blade, intended to be used in the closed configuration of the clasp. This first shape is convex, seen from the wrist, in deployed configuration, similar to the shape of the figure 1 and 4 .
  • the figure 10 illustrates the second predefined shape C2, useful for optimizing the opening of the clasp for the passage of a hand in the deployed configuration of the clasp.
  • the second shape is predefined so as to substantially follow the segment S, which maximizes the length of the moving blade.
  • the axes of articulation A13, A14, A15 in particular project beyond the segment S.
  • the convex shape is thus eliminated.
  • the movable blade 1 even has a slightly concave portion, seen from the wrist of the wearer of the wristwatch.
  • the absolute value of the radius of curvature of the movable blade 1 or of a portion of movable blade 1 can vary, or even significantly vary, when the movable blade 1 changes from its first shape C1 to its second shape C2 .
  • the absolute value of the radius of curvature of a movable blade portion 1 in its second shape C2 is greater, or even significantly greater, than the absolute value of the radius of curvature of the movable blade 1 in its first shape C1, by example 1.5 times to 5 times greater. This can make it possible to best match the parts of a hand having the strongest curvatures, such as the contour of the thumb, during the passage of the watch.
  • the figures 13 to 16 illustrate a second embodiment, in which the movable blade 1 is still divided into four parts 11, 12, 13, 14, by way of example. Naturally, any other number of parts greater than two would be possible.
  • This second embodiment differs from the first embodiment by the connections A11, A12, A13 between the various parts, which are formed by zones of less thickness of the movable blade 1.
  • the zones of less thickness are obtained by removing material, symmetrically from the two opposite surfaces of the movable blade 1: this removal of material takes the form of hollow parts in the form of semi-circles of radius r, which leave only a small minimum thickness e of material, positioned at the center in the thickness of the moving blade 1.
  • connection thus form necks, the behavior of which is similar to that of a joint A11, A12, A13 of the previous embodiment.
  • other areas of less thickness could also form a flexible pivot type connection.
  • the chosen geometry is therefore based on two semi-circles of radius r: preferably, this radius r of the semi-circles is at least greater than four times the minimum thickness e of the movable blade 1. This condition allows to distribute the stresses as well as possible and in particular makes it possible to avoid any concentration of stress in the middle of the neck.
  • the mobile blade 1 can be formed from a superelastic alloy, such as a nickel-titanium alloy such as Nitinol, in order to maximize the thickness e and thus optimize the resistance to traction and torsion of the mobile blade. 1 for a given maximum angular displacement of the various blade portions.
  • a superelastic alloy such as a nickel-titanium alloy such as Nitinol
  • such a joint is delimited angularly by stops, so as to unequivocally define the first and second predefined shapes of the movable blade 1, by the relative positioning of the different parts 11, 12, 13, 14 of the movable blade 1.
  • stops are formed by side walls of each part of the blade at each of the necks.
  • the necks advantageously do not cover the entire cross-section of the movable blade 1, which retains side walls of unchanged thickness, but sectioned to allow pivoting and form stops.
  • the stops could be removed and the angular travel could be limited by the very rigidity of the necks.
  • the zones of less thickness could have another shape, inducing a deformation of the blade which may move away from a pure pivoting movement.
  • the movable blade 1 can therefore have a first predefined shape C1, represented on the figures 14 and 15 , and can have a second form C2 represented by the figure 16 .
  • the first shape C1 is similar to the first shape of the first embodiment.
  • the second form C2 is similar to the second form of the second variant of the first embodiment, represented in figure 10 .
  • the movable blade 1 in the deployed configuration, if the movable blade 1 has its first shape C1, it comprises at least one zone which protrudes from the first side of the segment S oriented towards the wrist P, defined previously, and even has a convex shape mainly oriented towards the wrist.
  • the movable blade is substantially rectilinear, and comprises at least one zone which protrudes from the second side of the segment S, opposite to the wrist P.
  • the joints A11, A12, A13 protrude beyond the segment S, opposite the wrist P.
  • the movable blade 1 comprises at least one portion which has a substantially concave shape when seen from the wrist of the wearer of the wristwatch.
  • the absolute value of the radius of curvature of a portion of the moving blade 1 in its second shape C2 is greater, or even significantly greater, than the absolute value of the radius of curvature of the moving blade 1 in its first shape C1, for example 1.5 times to 5 times greater.
  • a blade mobile 1 comprising different types of joints, grouping for example at least one joint as provided in the first embodiment and at least one joint as provided in the second embodiment.
  • the figures 17 to 20 illustrate a third embodiment, in which the movable blade 1 is divided into two parts 11, 12.
  • This third embodiment differs from the two previous embodiments in that it does not include a connection between the two parts 11, 12 of the pivot type, the behavior of the blade to change shape not being based on a joint.
  • the figures 17 and 18 illustrate the movable blade 1 in its second shape C2, which is its shape at rest. Its two parts 11, 12 are not distinguished by a different shape and thickness.
  • the movable blade 1 first comprises a first concave part 11, seen from the wrist P, close to the axis A1 of articulation of the movable blade 1 with the second blade 2, even rectilinear, then a second part 12 substantially rectilinear, or even slightly convex, seen from the wrist P.
  • the movable blade 1 thus comprises a zone of inflection Z1 between the two parts 11, 12.
  • the movable blade 1 is therefore shaped to present in this second shape C2 a first part 11 which protrudes from the side of the segment S, extending between the two axes A1, A2 positioned at its ends, opposite to the wrist P.
  • the preforming of the movable blade 1 thus defines an unequivocal and stable geometry at rest, which corresponds to the second predefined C2 shape.
  • the mobile blade 1 makes it possible to optimize the passage of a hand when putting on the wrist or when removing the wristwatch from the wrist.
  • the first part 11 of substantially concave shape or straight line of the mobile blade 1 thus offers an additional passage to the hand of the wearer of the watch compared to the solution of the state of the art represented by the figure 1 .
  • Such a first part 11 is for example particularly suitable for the passage of the thumb of a hand of the wearer.
  • the wearer of the watch then continues the closing movement of the clasp, which induces the displacement of the mobile blade 1 towards the second blade 2 and an elastic deformation of the mobile blade 1.
  • This elastic deformation of the mobile blade 1 occurs in particular mainly at the level of the part 11, and can in particular occur at the level of the zone of inflection Z1.
  • the movement is continued until the closure of the clasp, namely until the attachment of the movable blade 1 with the second blade 2 of the clasp, in particular by an appropriate locking device 4, 5, 6.
  • the movable blade 1 is thus found deformed so as to present a first shape C1 in which its curvature is substantially constant and designed to best match the curvature of the blade 2, as well as the wrist of a wearer.
  • the first form C1 of the movable blade is illustrated on the figure 20 , in comparison with the second form C2.
  • this third embodiment could be obtained by any geometry of the moving blade 1 having at least one zone of inflection. It could therefore comprise several zones of inflection.
  • the first part 11 has a thickness e1 less than the thickness e2 of the second part 12 so that the first part 11 can be flexible, in particular in comparison with the second part, and present optimized bending moment.
  • the second part 12 is considered to be rigid and non-deformable in this embodiment, under the effect of conventional manipulations by the wearer of the wristwatch.
  • the thickness e1 of the first part 11 may be constant over the entire length of the first part 11.
  • the thickness e2 of the second part 12 may be constant over the entire second part 12.
  • these thicknesses e1 and / or e2 can vary, continuously or discontinuously, so as to provide a mobile blade 1 that is deformable in bending, while being sufficiently resistant to traction and torsion with regard to predefined requirement criteria.
  • the cross-section of each of the parts can also vary so as to meet these criteria.
  • the movable blade 1 can simply have a variable thickness along its length, without an inflection zone. This variable thickness forms a compromise that allows it to achieve sufficient flexibility to deform elastically between two different shapes, while retaining sufficient mechanical rigidity for handling.
  • the movable blade 1 can be formed from a superelastic alloy, such as a nickel-titanium alloy such as Nitinol.
  • the elastic potential energy accumulated by the elastic deformation of the mobile blade 1 in its first shape, in the closed configuration of the clasp can be used to contribute to the locking and/or unlocking function of the mobile blade 1 , in cooperation with a locking device 4, 5, 6 of the two blades 1, 2 of the clasp.
  • the elastic potential energy accumulated by the elastic deformation of the mobile blade 1 in its first shape can be used to facilitate the opening of the clasp, namely to allow the moving away of the mobile blade 1 relative to the second blade 2, by its pivoting around the axis A1 of articulation, without significant contribution from the wearer of the wristwatch.
  • the clasp could have any other architecture than that represented by the figures. It could include a greater number of folding blades. For example, it could comprise three slats, including two movable slats arranged respectively at the two ends of a third center slat, and coming to be locked in the central part of this third slat in the closed configuration of the clasp.
  • a movable blade or the two movable blades could comprise several movable parts with respect to each other to achieve two predefined shapes.
  • the movable blade has been illustrated as folding over another blade in a closed configuration, its closed position being fixed by a locking device.
  • a simple holding device for example by simple clipping, and/or any other locking device can be provided for the temporary and removable fixing of the mobile blade on the clasp in closed configuration of the clasp.
  • the mobile blade has been illustrated as being superimposed on another blade in the closed configuration of the clasp.
  • this movable blade could occupy a different position in the closed configuration of the clasp, for example totally or partially nested in another blade. More generally, the movable blade thus extends continuously over its entire length substantially along the surface of a second blade in the closed configuration of the clasp.
  • the mobile blade can take on several geometries.
  • a mobile blade of a clasp within the meaning of the invention as a blade comprising an articulation at the level of a first end, around which it pivots with respect to another blade of the clasp for the passage of a closed configuration to an extended configuration of the clasp, or vice versa, and which extends continuously from its first end towards a second end in the closed configuration of the clasp.
  • This mobile blade comprises two predefined shapes, that is to say that these shapes can be obtained repeatedly and reliably, automatically or under the effect of a given actuation of a wearer of the clasp.
  • These shapes can be predefined in different ways, by the geometric and/or mechanical properties of the moving blade.
  • a predefined shape can be stable or not: a shape is stable when it is automatically maintained when it is reached, in the absence of any constraint exerted by a wearer.
  • the invention has been illustrated on the basis of a clasp intended for a bracelet, this bracelet being intended for a wristwatch.
  • the invention thus also relates to a bracelet and to a wristwatch as such, comprising such a clasp.
  • the clasp can be associated with any other bracelet, for any object other than a watch to be attached to a wrist or any other part.
  • This object can be a “smartwatch”, a scuba diving accessory such as a depth gauge or a scuba diving computer for example, or even a jewelry component.

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  • Buckles (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Slide Fasteners (AREA)

Claims (16)

  1. Verschluss mit entfaltbaren Blättern für ein Armband, dadurch gekennzeichnet, dass er wenigstens zwei Blätter (1, 2) umfasst, davon ein bewegliches Blatt (1), das mit einem zweiten Blatt (2) an ersten Enden gelenkig verbunden ist, wobei der Verschluss eine erste, geschlossene Konfiguration einnehmen kann, in welcher:
    - Das bewegliche Blatt (1) eine erste vorgegebene Form (C1) aufweist und sich durchgehend über seine gesamte Länge im Wesentlichen entlang der Fläche des zweiten Blatts (2) erstreckt;
    - Das zweite Ende des beweglichen Blatts (1) durch den Verschluss in Position gehalten wird;
    wobei der Verschluss eine zweite, entfaltete Konfiguration einnehmen kann, in welcher das zweite Ende des beweglichen Blatts (1) frei ist, wobei das bewegliche Blatt (1) so von der Fläche des zweiten Blatts (2) entfernt sein kann, dadurch gekennzeichnet, dass in der zweiten, entfalteten Konfiguration das bewegliche Blatt (1) geeignet ist, eine zweite vorgegebene Form (C2) aufzuweisen, die sich von der ersten vorgegebenen Form (C1) unterscheidet, um die Durchtrittsfläche der Hand eines Trägers des Verschlusses zu optimieren.
  2. Verschluss nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das bewegliche Blatt eine erste konvexe gekrümmte Form (C1) vom Handgelenk aus betrachtet in der entfalteten Konfiguration des Verschlusses aufweist, die geeignet ist, die Form des Handgelenks eines Trägers des Verschlusses in der geschlossenen Konfiguration des Verschlusses anzunehmen, und eine zweite Form (C2) aufweisen kann, die wenigstens einen im Wesentlichen geradlinigen und/oder konkaven Abschnitt vom Handgelenk aus betrachtet in der entfalteten Konfiguration des Verschlusses umfasst und/oder wenigstens einen Abschnitt umfasst, der über ein Segment (S) hinausragt, das von den zwei Enden des beweglichen Blatts (1) begrenzt wird, das sich so vom Handgelenk eines Trägers des Verschlusses in der entfalteten Konfiguration des Verschlusses entfernt.
  3. Verschluss nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Form (C1) und/oder die zweite Form (C2) des beweglichen Blatts (1) eine stabile vorgegebene Form ist.
  4. Verschluss nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das bewegliche Blatt (1) wenigstens zwei Abschnitte (11, 12) umfasst, die durch ein Gelenk (A11) gelenkig miteinander verbunden sind.
  5. Verschluss nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass jeder Abschnitt (11, 12) des beweglichen Blatts (1) jeweils zwei Anschläge (11a, 11b) (12a, 12b) an seinem Gelenk (A11) umfasst, die jeweils die Position der zwei Abschnitte (11, 12) des beweglichen Blatts (1) begrenzen und die zwei vorgegebenen Formen definieren.
  6. Verschluss nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass das bewegliche Blatt (1) wenigstens ein Gelenk umfasst, das eine Gelenkachse umfasst, um die zwei Abschnitte (11, 12) des beweglichen Blatts (1) gelenkig miteinander verbunden sind.
  7. Verschluss nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass das bewegliche Blatt (1) wenigstens ein Gelenk umfasst, das einen Bereich geringerer Dicke umfasst, der eine Schwenkverbindung zwischen zwei Abschnitten (11, 12) des beweglichen Blatts (1) bildet, die beiderseits des Bereichs geringerer Dicke angeordnet sind.
  8. Verschluss nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass wenigstens ein Gelenk eine Drehung einer Amplitude zwischen einschließlich 20 und 80 Grad zwischen zwei Gelenkabschnitten (11, 12) des beweglichen Blatts (1) erlaubt.
  9. Verschluss nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das bewegliche Blatt (1) wenigstens einen Biegungsbereich (Z1) umfasst, der die elastische Verformung des beweglichen Blatts (1) erlaubt.
  10. Verschluss nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das bewegliche Blatt (1) eine zweite stabile Position (C2) aufweist, die für die entfaltete Konfiguration des Verschlusses bestimmt ist, dadurch, dass das bewegliche Blatt (1) wenigstens zwei Abschnitte (11, 12) umfasst, die um einen Biegungsbereich (Z1) verteilt sind.
  11. Verschluss nach einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, dass das bewegliche Blatt (1) zwei Abschnitte (11, 12) umfasst, die eine unterschiedliche Krümmung und/oder unterschiedliche Dicken und/oder entgegengesetzte Konvexitäten aufweisen.
  12. Verschluss nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, dass das bewegliche Blatt (1) zwei Abschnitte (11, 12) jeweils unterschiedlicher Dicken (e1, e2) umfasst, die die folgenden Bedingungen erfüllen:
    e1 < e2/2, ja sogar e1 < e2/3 ;
    und dadurch, dass die Dicke (e2) des zweiten Abschnitts (12) des beweglichen Blatts (1) in der Nähe der Dicke (e3) des zweiten Blatts (2) liegt.
  13. Verschluss nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das bewegliche Blatt (1) aus einer superelastischen Legierung ist, wie etwa einer Nickel-Titan-Legierung wie Nitinol, und/oder dadurch, dass das bewegliche Blatt (1) eine Länge zwischen 20 und 60 mm aufweist.
  14. Verschluss nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er ein Verschluss mit zwei entfaltbaren Blättern von im Wesentlichen gleicher Länge ist, oder dadurch, dass er ein Verschluss mit zwei Blättern ist, die um ein drittes, mittleres Blatt beweglich sind.
  15. Armband, dadurch gekennzeichnet, dass es wenigstens einen Verschluss mit entfaltbaren Blättern nach einem der vorhergehenden Ansprüche umfasst.
  16. Armbanduhr, dadurch gekennzeichnet, dass sie wenigstens ein Armband nach dem vorhergehenden Anspruch umfasst.
EP17177805.3A 2017-06-26 2017-06-26 Verschluss für armbanduhr Active EP3420839B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17177805.3A EP3420839B1 (de) 2017-06-26 2017-06-26 Verschluss für armbanduhr
JP2018119523A JP7250445B2 (ja) 2017-06-26 2018-06-25 腕時計用留め金
US16/016,986 US10791806B2 (en) 2017-06-26 2018-06-25 Clasp for wristwatch
CN201810673679.9A CN109106012B (zh) 2017-06-26 2018-06-26 用于手表的扣件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17177805.3A EP3420839B1 (de) 2017-06-26 2017-06-26 Verschluss für armbanduhr

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EP3420839B1 true EP3420839B1 (de) 2022-10-05

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CN110840024A (zh) * 2019-11-27 2020-02-28 安徽薇娅智能科技有限公司 一种新型智能手环及其连接带结构
CH717148B1 (fr) * 2020-02-19 2024-02-29 Erbas Sa Fermoir pour bracelet notamment d'une montre.
CN116114979A (zh) * 2020-02-27 2023-05-16 华为技术有限公司 连接机构和可穿戴设备
EP3928652B1 (de) * 2020-06-23 2023-04-19 Rolex Sa Verschlussvorrichtung für armbandverschluss
DE102021117784B4 (de) 2021-07-09 2023-04-27 Johann Fleis Armbanduhrvorrichtung
EP4159080B1 (de) * 2021-10-01 2024-03-27 Omega SA Verstellbarer armbandverschluss

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Also Published As

Publication number Publication date
CN109106012A (zh) 2019-01-01
US20180368540A1 (en) 2018-12-27
JP7250445B2 (ja) 2023-04-03
JP2019030636A (ja) 2019-02-28
EP3420839A1 (de) 2019-01-02
CN109106012B (zh) 2022-12-27
US10791806B2 (en) 2020-10-06

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