EP0620986B1 - Faltverschluss für Armbänder - Google Patents

Faltverschluss für Armbänder Download PDF

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Publication number
EP0620986B1
EP0620986B1 EP19940420116 EP94420116A EP0620986B1 EP 0620986 B1 EP0620986 B1 EP 0620986B1 EP 19940420116 EP19940420116 EP 19940420116 EP 94420116 A EP94420116 A EP 94420116A EP 0620986 B1 EP0620986 B1 EP 0620986B1
Authority
EP
European Patent Office
Prior art keywords
folding
cylinder
members
clasp according
central
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19940420116
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English (en)
French (fr)
Other versions
EP0620986A1 (de
Inventor
Francois Mathieu
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.)
Maier SA
Original Assignee
Maier 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 Maier SA filed Critical Maier SA
Publication of EP0620986A1 publication Critical patent/EP0620986A1/de
Application granted granted Critical
Publication of EP0620986B1 publication Critical patent/EP0620986B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A44C5/22—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 leaflet for bracelet, and more particularly to a clasp comprising a central spar and one or two pairs of external leaflets formed in stretcher so that, when closing, these leaflets are juxtaposed around the central spar, these leaflets being assembled in their end by a bar for fixing a strand of bracelet or by a cylinder provided to wear such bar.
  • GB-A-1 337 304 describes an example of clasp comprising three arched plates linked in pairs by hinges so that they can be folded down one on the other, the free end of the first and the third plate being respectively connected, also by a hinge, to the bracelet.
  • the third plate is completed lateral flanks whose ends close to the hinge connecting with the second plate are presented in the form of hooks which click into place once the folded clasp, in the axis of the hinge connecting the bracelet to the first plate.
  • clasp plates previously described are necessarily thin to avoid too much large total thickness of the clasp, therefore deformable despite the presence of longitudinal reinforcing ribs.
  • This characteristic is unlike fold-over clasps stretcher whose leaflets and side member may have a certain thickness to ensure intrinsic rigidity. In consequence, either the first plate is too arched, and hook engagement is loose; either she is too straight, and the engagement is done under elastic tension therefore likely to jump at any time.
  • Document FR-E-41 138 describes a clasp in stretcher in which the central area of the central spar is provided with engaging lateral projections in position closed, in corresponding accommodation in external leaflets which are made elastic thanks to longitudinal lights. Besides the fact that these lights are difficult to achieve, thereby increasing the cost of manufacturing, the leaflets must necessarily be wide, which greatly limits aesthetic choices.
  • the document CH 641 332 describes another example of clasp of this type in which the central spar carries along its transverse median axis a shaped anchoring member of rail.
  • the strand fixing bars, or the cylinders carriers of bars, joining the ends of the flyers then snap against each side of the rail when closing.
  • this rail of substantial thickness and protruding above the beam is difficult.
  • the reliability of closing each leaflet depends on the degree of wear of the single corresponding face of rail.
  • document EP 0 115 740 discloses a clasp with two leaflets according to the preamble of the claim, of which the central part is made up two parallel beams held apart by a cross median between which comes to fall back, of each end, a folding arm.
  • Each folding arm is provided on most of its side faces exterior of an engaging profile, in the folded position, in a complementary profile provided on the side faces interior of the side members.
  • Each arm is split longitudinally in two blades which are kept apart elastically by an internal spring or due to the shape in tuning fork given to the arm. The manufacture of these arms elastic as well as the double center piece is also complex and expensive.
  • each folding arm is produced in the form of a single full blade, and we play on a relative elasticity of the side members between the cross member and the hinge link of the arm to forcefully engage notches of reduced arm length.
  • the elasticity in spacing of these portions of spars held at each extremity can only be very limited, especially if these stringers must necessarily have a width and minimum thickness.
  • the present invention relates to a folding clasp for bracelet including a central spar, one end of which is hinged to a pair of outdoor brochures or a brochure single formed in stretcher to allow this or these leaflets, when closing, to land around the central spar, this or these leaflets being at one of the ends connected by a strip for fixing a strand of bracelet or by a carrying cylinder for such bar, the other end of the central beam being articulated either to a second cylinder or bar, or to a second pair of external leaflets, the link between cylinder, or bar, single fold or to the leaflets from the pair of leaflets being made by two lateral uprights forming a connection in inverted U shifting this cylinder or bar above the plan containing the ends of the leaflets.
  • the object of the present invention is a compound clasp, in version basic, of a reduced number of parts of simplified structure to allow more advantageous manufacturing, and all ensuring high reliability of locking as well as easy closing and opening.
  • this inverted U link has an elasticity of such that an anchoring member providing the face inside the end of the single leaflet or of each flyer the pair of flyers can come and engage elastically with a complementary body arranged in correspondence on the outer side of the spar central.
  • the two amounts and the cylinder constitute an inverted U connection, in other words in bridge, between the two ends of leaflets which can more easily move away elastically to let through the projections in their housing.
  • the elasticity desired to obtain sufficient spacing can be distributed by bending along each upright, and by a curvature of the cylinder. So, we can consider the realization by machining of two fold-out cylinder-cylinder assemblies that we simply assemble the spar using two pins.
  • the lateral uprights are perpendicular to the ends of the leaflets, and the anchors are made in the form of convex projections or housings concaves formed along the inner faces of the ends leaflets, and whose cross section is triangular angle at the top greater than 120 degrees.
  • the amounts lateral are oblique to the ends of the leaflets thus holding the cylinder beyond said extremities.
  • the anchors are made under the shape of convex projections or concave housings formed along the lower edges of the inner faces of ends of the leaflets, and whose cross section is regular trapezoidal.
  • the amounts are longer, so they can flex better, which allows protrusions or deeper housings made under a regular trapezoidal shape to ensure identical effort on opening and closing.
  • the amounts can have a middle groove between the projection (or housing) and the cylinder, this groove being parallel to them.
  • This groove further increases the bending potential of the uprights by a characteristic elasticity of a C-piece.
  • the cylinder or the bar can present a middle notch or a pair of notches side. These notches allow for more sagging pronounced the play.
  • the spar central formed in one piece or by two blades parallel, has a central indentation ensuring flexibility of the middle parts.
  • the notch can have a V-shaped part in which a corner is more or less forced, this which allows to adjust the width of the beam just enough to change the latching force accordingly flyers.
  • the position of the corner in the V-shaped part can be adjustable, for example by means of a screw passing through the corner by a tapped hole and bearing against the end of the notch opposite the V-shaped part
  • the spar can be formed by two parallel blades whose spacing is regulated by one or several transverse screws.
  • this spar is also formed by two parallel blades, but held separated by two pivots, their ends possibly being tightened at will by transverse screws causing a spacing of the middle part of the blades.
  • the clasp includes a central beam 10 arched to conform partially to the roundness of the wearer's wrist. Every end of this beam is assembled a folding part movable in pivoting around an axis 14, each piece holding at its other end, also movable in rotation, a strand bracelet 1, 2 made of leather or formed of links metallic.
  • each folding part is consisting of two leaflets 20,21 linked together by a U-shaped bridge embodied by two lateral uprights 22 holding a cylinder 24.
  • this cylinder 24 is inserted a strip used for fixing strands 1 and 2 of the bracelet.
  • this cylinder 24 can be directly replaced by the bar.
  • These leaflets 20.21 are mounted as a stretcher relative to the central beam 10, that is to say that they are located on either side of this spar so as to come to be juxtaposed along the edges of this spar when the part is closed folding as well illustrated on the right side of the figure.
  • the uprights 22 are parallel to the Z axis, therefore orthogonal to leaflet 21.
  • the cylinder 24, oriented along the X axis therefore also orthogonal to the Z axis, is located just above this leaflet 21.
  • the attachment member then presents itself, preferably in the form of a shallow housing 26, oriented along the Y axis, starting practically from the bottom edge of this leaflet up to a height of between half, even two-thirds of the height of the uprights 22.
  • the cross section of this housing 26 is rather triangular isosceles with an angle at the top of around 120 degrees.
  • the length e1 of the part potentially sagging amounts 22 is then substantially equal to the height of the leaflet 21 is included between 1.1 and 1.9 mm.
  • FIG. 2b is enlarged a second embodiment of zone II of FIG. 1, in which the upright 22 'is oblique, for example by 45 degree angle to the Y axis of the leaflet 21.
  • the cylinder 24 is offset in front of the end of the leaflet 21 by a distance y2 of in the range of 1 to 1.5 mm.
  • the way in this example under the shape of a housing 26 'always parallel to the Y axis, formed along the lower edge of the leaflet 21, and this on greater depth. The section of this accommodation is then rather isosceles trapezoidal.
  • the complementary body of attachment 12 of the spar 10 is in the form of a convex projection of identical trapezoidal section.
  • FIG 2c is illustrated so enlarged a third embodiment of zone II of the Figure 1, in which the cylinder 24 is raised, that is to say that it only leaves from a distance z3 above the upper face of the leaflet 21, increasing that further the distance e3 from the flexible part of the upright 22 '.
  • the organ attachment can either be, as before, a housing 26 ', or as illustrated in this figure, a convex projection 26 '' again trapezoidal section.
  • the organ complementary 12 of the spar 10 can be, as previously, a housing provided at the corresponding height of the edge of the spar 10, or an identical projection but arranged just above so that the 26 '' projection can go over before hanging on below.
  • the space left free under the cylinder 24 facilitates, by elsewhere, the reopening of the clasp because we can insert more easily a fingernail under this cylinder to lift it.
  • FIG. 2d In the example of Figure 2d is illustrated a fourth embodiment of zone II of FIG. 1, in which a groove 23 has been made parallel to the axis Y in the 22 '' upright and part of the leaflet 21, and this between the projection 26 '' and the underside of the cylinder 24.
  • the 22 '' post flexibility then corresponds to that of a C-piece oriented obliquely.
  • Figure 3 illustrates how a notch central 25 can be arranged in the cylinder 24 so significantly improve the possibility of flexing this cylinder inside a plane orthogonal to the Y axis.
  • Figure 4 illustrates a cylinder 24 in which we made two notches 27 and 29 close to 22 uprights, which only favors the possibility spacing of each upright 22.
  • the Figure 5 illustrates a central spar formed by two blades 16 and 18 of reduced width in their center to create a notch 15 with triangular ends 17.
  • the two blades 11 and 13 are kept apart by pivots 48 held by means of transverse pins 49 at breast of notches 7 in portion of circles formed in the face internal of the blades.
  • a screw 40 whose head 42 and the thread are extended on both sides by flyer bars 45 and 47. Screw head 42 pressing in the corresponding housing of the blade 13, a clockwise rotation of this screw causes the ends of the blades 11 and 13 to be clamped, or a spacing of their middle part where the hanging devices 12 for leaflets.
  • the one-piece central spar 10 has a notch 50 long enough, for example half the length of the clasp.
  • This notch includes, for example on its first third, part in V 52, that is to say that its width y decreases linearly and symmetrically relative to the central axis.
  • a corner 60 in this case regular trapezoidal angle at vertex identical to that of the V-shaped part 52.
  • This corner 60 is held in place by two lateral tenons 54 of the notch penetrating into two corresponding lateral grooves 64 of the corner.
  • a screw 70 passes longitudinally through this corner in a tapped hole 68 and its end is supported against the end 72 of the notch opposite the V-shaped part
  • the invention can be adapted to a single fold fastener with the same length as the side member as illustrated in Figure 8. Furthermore, if plans to produce a one-piece leaflet by machining, the invention also includes clasps whose leaflets are made separately then welded to the cylinder or crimped the bar 24. Many improvements can be made to this clasp as part of this invention such as defined by the claims.

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  • Adornments (AREA)
  • Radiation-Therapy Devices (AREA)
  • Prostheses (AREA)

Claims (9)

  1. Klappschließe für ein Armband, umfassend einen Mittelträger (10), dessen eines Ende an einem Paar von äußeren Klappelementen (20, 21) oder an einem einzelnen Klappelement (20, 21, 24) angelenkt ist, das rahmenartig ausgebildet ist, damit sich dieses Klappelement oder diese Klappelemente beim Schließen um den Mittelträger legen können, wobei dieses Klappelement oder diese Klappelemente an ihrem einen Ende durch einen Steg zur Befestigung eines Armbandstücks (1) oder durch einen Tragzylinder (24) für einen solchen Steg verbunden sind, wobei das andere Ende des Mittelträgers entweder an einen zweiten Zylinder oder Steg oder an ein zweites Paar von äußeren Klappelementen angelenkt ist, wobei die Verbindung des Zylinders oder des Stegs mit dem einzelnen Klappelement (20, 21, 24) oder dem Paar von Klappelementen (20, 21) durch zwei seitliche Schenkel (22) erfolgt, die eine Verbindung in Form eines auf dem Kopf stehenden U bilden, und die diesen Zylinder oder Steg über die Ebene, welche die Enden der Klappelemente enthält, versetzen, dadurch gekennzeichnet, daß die Verbindung nach Art eines auf dem Kopf stehenden U eine derartige Elastizität zeigt, daß ein Verankerungsorgan (26), welches auf der Innenseite des Endes des einzigen Klappelementes (20, 21, 24) oder jedes Klappelements des Paares von Klappelementen (20, 21) vorgesehen ist, elastisch mit einem komplementären Organ in Eingriff kommen kann, das in entsprechender Weise an den Außenflanken des Mittelträgers angeordnet ist.
  2. Klappschließe nach Anspruch 1, dadurch gekennzeichnet, daß die seitlichen Schenkel (22) in bezug auf die Enden der Klappelemente (20, 21) senkrecht sind und daß die Verankerungsorgane in Form von konvexen Vorsprüngen oder konkaven Aussparungen (26) verwirklicht sind, die entlang den Innenseiten der Enden der Klappelemente vorgesehen sind und deren Querschnitt dreieckig ist, mit einem Spitzenwinkel von mehr als 120 Grad.
  3. Klappschließe nach Anspruch 1, dadurch gekennzeichnet, daß die seitlichen Schenkel (22') in bezug auf die Enden der Klappelemente (20, 21) schräg sind und auf diese Weise den Zylinder (24) jenseits dieser Enden halten und daß die Verankerungsorgane in Form von konvexen Vorsprüngen oder konkaven Aussparungen (26) verwirklicht sind, die entlang den Unterkanten der Innenseiten der Enden der Klappelemente vorgesehen sind und deren Querschnitt trapezförmig ist.
  4. Klappschließe nach Anspruch 3, dadurch gekennzeichnet, daß die Schenkel (22) zwischen dem Vorsprung oder der Aussparung (26'') und dem Zylinder (24) eine parallel verlaufende Nut (23) aufweisen.
  5. Klappschließe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Zylinder oder der Steg (24) einen Mitteleinschnitt (25) oder ein Paar seitlicher Einschnitte (27, 29) aufweist.
  6. Klappschließe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Träger (10), der aus einem einzigen Stück besteht oder von zwei parallelen Streifen (16, 18) gebildet wird, einen mittleren Ausschnitt (15) aufweist.
  7. Klappschließe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Träger (10) von zwei parallelen Streifen (11, 13) gebildet wird, deren Abstand mittels einer oder mehrerer querverlaufender Schrauben (30) einstellbar ist.
  8. Klappschließe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Träger (10) von zwei parallelen Streifen (11, 13) gebildet wird, die von zwei Zapfen (48) in einem Abstand voneinander gehalten werden, wobei ihre Enden nach Wunsch durch querverlaufende Schrauben (40) zusammengezogen werden können, was ein Auseinanderweichen des Mittelteils der Streifen bewirkt.
  9. Klappschließe nach Anspruch 6, dadurch gekennzeichnet, daß der Ausschnitt einen V-förmigen Teil (52) aufweist, in den ein Keil (60) mehr oder weniger eingetrieben ist, beispielsweise mittels einer Schraube (70), die den Keil durch eine Innengewindebohrung (68) durchsetzt und sich am Ende (72) des Ausschnitts gegenüber dem V-förmigen Teil abstützt.
EP19940420116 1993-04-19 1994-04-12 Faltverschluss für Armbänder Expired - Lifetime EP0620986B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9304792A FR2704120B1 (fr) 1993-04-19 1993-04-19 Fermoir dépliant pour bracelet.
FR9304792 1993-04-19

Publications (2)

Publication Number Publication Date
EP0620986A1 EP0620986A1 (de) 1994-10-26
EP0620986B1 true EP0620986B1 (de) 1999-09-08

Family

ID=9446353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940420116 Expired - Lifetime EP0620986B1 (de) 1993-04-19 1994-04-12 Faltverschluss für Armbänder

Country Status (5)

Country Link
EP (1) EP0620986B1 (de)
DE (2) DE69420446T2 (de)
ES (1) ES2071599T1 (de)
FR (1) FR2704120B1 (de)
HK (1) HK1012876A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3941300B1 (de) * 2019-03-21 2023-04-05 Bulgari Horlogerie S.A. Schnalle für ein uhrenband oder armband

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH690894A5 (fr) * 1996-07-01 2001-02-28 Vacheron & Constantin S A Fermoir dépliant, notamment à bouton.
AU7022698A (en) 1997-04-24 1998-11-24 James Wright Small scale automated composter
FR2821725A1 (fr) * 2001-03-07 2002-09-13 Luigi Ferrario Fermoir depliant pour bracelet
US6792652B2 (en) 2003-02-25 2004-09-21 Luigi Ferrario Unfolding clasp for bracelet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1337304A (en) * 1971-01-15 1973-11-14 Excalibur Jewellery Ltd Bracelet fasteners
CH641332A5 (en) * 1982-11-19 1984-02-29 Boucledor Sa Clasp
EP0115740B1 (de) * 1983-02-02 1986-03-26 CORNU & CIE SA Faltverschluss für Armbänder
CH665536A5 (en) * 1985-06-07 1988-05-31 Cornu & Cie S A Folding fastener for bracelet with U=shaped cover - bracelet adjustable part fits under this, tongue pivots on axle in cover and engages in hole
JPH0216658Y2 (de) * 1985-06-18 1990-05-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3941300B1 (de) * 2019-03-21 2023-04-05 Bulgari Horlogerie S.A. Schnalle für ein uhrenband oder armband

Also Published As

Publication number Publication date
DE620986T1 (de) 1995-09-28
DE69420446D1 (de) 1999-10-14
ES2071599T1 (es) 1995-07-01
DE69420446T2 (de) 2000-05-31
HK1012876A1 (en) 1999-08-13
EP0620986A1 (de) 1994-10-26
FR2704120A1 (fr) 1994-10-28
FR2704120B1 (fr) 1995-06-30

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