EP0115740B1 - Faltverschluss für Armbänder - Google Patents

Faltverschluss für Armbänder Download PDF

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Publication number
EP0115740B1
EP0115740B1 EP19830810041 EP83810041A EP0115740B1 EP 0115740 B1 EP0115740 B1 EP 0115740B1 EP 19830810041 EP19830810041 EP 19830810041 EP 83810041 A EP83810041 A EP 83810041A EP 0115740 B1 EP0115740 B1 EP 0115740B1
Authority
EP
European Patent Office
Prior art keywords
blades
bracelet
cylinders
articulated arm
fastener according
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
Application number
EP19830810041
Other languages
English (en)
French (fr)
Other versions
EP0115740A1 (de
Inventor
Jacques Favre
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.)
Cornu & Cie SA
Original Assignee
Cornu & Cie 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 Cornu & Cie SA filed Critical Cornu & Cie SA
Priority to EP19830810041 priority Critical patent/EP0115740B1/de
Priority to DE8383810041T priority patent/DE3362646D1/de
Publication of EP0115740A1 publication Critical patent/EP0115740A1/de
Application granted granted Critical
Publication of EP0115740B1 publication Critical patent/EP0115740B1/de
Expired 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 folding clasp for a bracelet with a central part with side members comprising at each of its ends a leaflet capable of being folded over and made integral with said central part.
  • a clasp of this type is already known (for example described in US-A-1 839 788) in which, in the folded position, the leaflets in the form of massive pieces of rectangular section are made integral with the central part with side members by tightening with notch of their free end on cross members disposed between the side members.
  • the security of closure of such a device leaves something to be desired by the fact that it is relatively easy to disengage the free ends of the leaflets from the crosspieces on which they clamp.
  • notch tightening requires a relatively large material thickness of the leaflets not allowing the production of a thin clasp.
  • Document FR-E-41 138 also describes a clasp of the same type and in which projections are provided on each side of the folding arms, these projections engaging in housings provided in the internal lateral faces of the notches.
  • the elasticity necessary for the notch closure is given by longitudinal slots made in the section of the longitudinal members of the connecting element is insufficient to allow projections and housings of a length sufficient to ensure reliability and closing security of the clasp and also reducing wear on the parts of the notch closure.
  • the object of the present invention is therefore to produce a clasp for a bracelet, in particular for a watch, having a high closing security and capable of being produced in a thin version.
  • the leaflets are formed of blades whose profiled outer edge fits notch into the inner edge of the complementary profile of the side members, the security of the closure is increased and the clasp can be produced in a thin version.
  • the clasp consists of a central part 1 with side members 2 and 3 assembled in their middle by a cross member 4.
  • a leaflet 5 which, in a first embodiment of the invention is formed by two parallel blades 6 and 7 each assembled in a rotary manner to the side members 2 and 3 by a hinge 9 around an axis 8 set in the side members.
  • the blades 6 and 7 are separated from each other by a spring 10 shown in Figure 4 and mounted around the axis 8 in the hinges 9.
  • the blades 6 and 7 are welded to spring cylinders 11 and 12 shown in FIG. 3.
  • the cylinders 11 and 12, each carrying a bar 14, fit into one another and are separated from each other with the bars 14 by a spring 13 mounted inside the cylinders, around the bars.
  • Figure 3 shows that the outer edge of the blades 6 and 7 has a profile P1, formed for example of the intersection of two inclined planes and that the side members 2 and 3 have in their inner edge a profile P2 of complementary shape.
  • the profiles P1 and P2 can be provided over the entire length of the blades and the side members or over only part of this length.
  • the leaflets 5 When the bracelet is open, the leaflets 5 are spread outwards and the blades 6 and 7 are separated from one another by the springs 10 and 13.
  • the profiles P1 and P2 interpenetrate against the action of the springs, which produces a mutual approximation of the blades 6 and 7, the profile P1 of which is then inserted into the complementary profile P2 of the stringers.
  • the blades and the side members are then kept nested by the action of the springs. This ensures, in the closed state, a notched fixing of the blades with the side members.
  • To open the bracelet simply release the leaflets by removing them outwards against the force of the springs.
  • the clasp according to the invention can be produced in a thin execution by the fact that the notch fixing is produced using profiles included in the thickness of the blades and the longitudinal members of the clasp.
  • the security of the fixing is all the higher as the profiles P1 and P2 extend over a greater length in the blades and the side members.
  • the reliability of the clasp is increased by the fact that the springs 10 and 13 are only very slightly stressed. There is therefore practically no risk of destruction of the springs by repeated fatigue.
  • the notch fixing effect is manifested over a considerable length of the profiles P1 and P2, the effect of the wear of the edges of these profiles is much less significant than in the case of a notch fixing in a single point.
  • the spring 10 of the hinges 9 is not absolutely necessary and it can without further elimination. It is also obvious that the complementary profiles P1 and P2 can be interchanged, the profile P1 then being provided on the side members 2 and 3 and the profile P2 on the blades 6 and 7. Similarly, any other pair of appropriate complementary profiles can be used.
  • FIG. 5 shows a second embodiment of the clasp according to the invention in which the blades 15 and 16 of the leaflets, similar to the blades 6 and 7 of the first embodiment are connected to a common base 18 to form the branches an elastic piece in the form of a tuning fork.
  • the hinge 17 allowing the rotation of the leaflets 5 around the axis 8 is in one piece and has no spring.
  • the cylinders 11 and 12 also have no spring and, when the bracelet is closed, the pressure exerted on the folded flyers on the central part 1 allows the interpenetration of the profiles P1 and P2 against the elasticity of the branches of the tuning fork, the notched fixing of the branches 15 and 16 with the side members 2 and 3 being ensured, in the closed state, by the elasticity of the branches of the tuning fork.
  • the profiles P2 are preferably provided over a certain length of the longitudinal members, adjacent to the central cross-member 4 and the profiles P1 of the blades 15 and 16 of the tuning fork on a corresponding part of at least length equal to or preferably greater than that of P2 profiles.
  • This second embodiment is therefore considerably simpler in design than that of the first embodiment. It does not have any spring which makes it even more reliable. It also offers the advantage of allowing precise metering of the pressure of the notch fixing.
  • FIGS 6 and 7 show a third embodiment of the clasp according to the invention in which the leaflets are each formed from a single solid blade 19 fixed to the hinge 17 to allow their rotation about the axis 8.
  • the other end of the blade 19 is fixed to a cylinder 20 carrying two bars 14 allowing the attachment of a strand of the bracelet (not shown).
  • the profiles P2 are provided over a certain length of the inner edges of the side members 2 and 3, themselves elastic, at equal distance between the central span 4 and the ends of the side members.
  • the profiles P1 of the blade 19 are located on a corresponding central part of the edges of this blade and their length is at least equal to or greater than that of the profiles P2.
  • the third embodiment of the invention is of very simple design.
  • it allows the production of a clasp in an economical version and it offers the main advantage of eliminating the milling necessary for the separation of the blades 15 and 16 of the tuning fork of FIG. 5, milling which is a source of machining difficulties when 'it is made for example in a stainless steel part.

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  • Adornments (AREA)

Claims (6)

1. Faltverschluss für Armbänder mit einem starren mit Längsbalken (2, 3) versehenen Träger (1), welcher an jedem seiner Enden einen angelenkten Arm (5) aufweist, welcher mit einem Teil des Armbandes verbunden ist und auf den Träger niedergedrückt und im demselben festgehalten werden kann, dadurch gekennzeichnet, dass jeder angelenkte Arm (5) an seinen äusseren Seitenflächen mit einem Profil (P1) einer Länge, die mindestens die Hälfte derjenigen des angelenkten Armes (5) beträgt, versehen ist, wobei in der niedergedrückten Stellung des angelenkten Armes das Profil (P1) in ein Profil (P2) komplementärer Form und von entsprechender Länge das in den inneren Seitenflächen der Längsbalken (2, 3) vorgesehen ist, eingreift, und wobei die angelenkten Arme (5) elastische, verstellbare Mittel aufweisen um eine Schnappbefestigung der angelenkten Arme (5) mit dem starren Träger (1) zu gewährleisten.
2. Faltverschluss nach Anspruch 1, dadurch gekennzeichnet, dass jeder angelenkte Arm zwei nebeneinander angeordnete Klingen (6, 7) aufweist, wobei jede dieser Klingen (6, 7) am Ende des starren Trägers durch ein Scharnier (9) befestigt ist, welches um einen Stift (8) drehen kann.
3. Faltverschluss nach Anspruch 2, dadurch gekennzeichnet, dass die genannten Klingen (6, 7) durch eine Feder (10) auseinander gehalten sind, welche um den Stift (8) in den Scharnieren (9) montiert ist.
4. Faltverschluss nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Klingen (6, 7) an ihren freien Enden mit Zylindern (11, 12), welche einen Steg (14) aufweisen, befestigt sind, um die Befestigung eines Teils des Armbandes zu erlauben, wobei die Zylinder ineinander greifen und mit den Stegen durch eine Feder (13) auseinander gespreizt werden, der um die Stege (14) innerhalb der Zylinder montiert ist.
5. Faltverschluss nach Anspruch 4, dadurch gekennzeichnet, dass in der niedergedrückten Stellung des Faltverschlusses die Klingen (6, 7) und die Längsbalken (2, 3) durch Schnappbefestigung zusammengehalten sind, wobei die Profile komplementärer Form (P1, P2) durch die Wirkung des Druckes mindestens einer der Federn (13) ineinander gehalten sind.
6. Faltverschluss nach Anspruch 1, dadurch gekennzeichnet, dass jeder angelenkte Arm zwei nebeneinander angeordnete Klingen (15, 16) aufweist, welche die Arme einer Stimmgabel bilden, die am Ende des starren Trägers (1) durch ein Scharnier (17) befestigt ist, wobei die Arme (15, 16) an ihren freien Enden mit Zylindern (11, 12) verbunden sind, welche einen Stift, der die Befestigung eines Teils des Armbandes erlaubt, halten, wobei die Zylinder ineinander greifen und mit den Stiften durch die Elastizität der Arme (15, 16) auseinander gespreizt werden.
EP19830810041 1983-02-02 1983-02-02 Faltverschluss für Armbänder Expired EP0115740B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19830810041 EP0115740B1 (de) 1983-02-02 1983-02-02 Faltverschluss für Armbänder
DE8383810041T DE3362646D1 (en) 1983-02-02 1983-02-02 Foldable fastener for a bracelet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19830810041 EP0115740B1 (de) 1983-02-02 1983-02-02 Faltverschluss für Armbänder

Publications (2)

Publication Number Publication Date
EP0115740A1 EP0115740A1 (de) 1984-08-15
EP0115740B1 true EP0115740B1 (de) 1986-03-26

Family

ID=8191539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830810041 Expired EP0115740B1 (de) 1983-02-02 1983-02-02 Faltverschluss für Armbänder

Country Status (2)

Country Link
EP (1) EP0115740B1 (de)
DE (1) DE3362646D1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0216658Y2 (de) * 1985-06-18 1990-05-09
CH674447A5 (de) * 1987-11-19 1990-06-15 G Et F Chatelain S A
CH678002A5 (de) * 1989-02-16 1991-07-31 Petitjean Sa
CH684151A5 (fr) * 1990-11-28 1994-07-29 Cornu & Cie S A Fermoir de bracelet.
FR2704120B1 (fr) * 1993-04-19 1995-06-30 Maier Fermoir dépliant pour bracelet.
FR2723824A1 (fr) * 1994-08-31 1996-03-01 Alain Bonnet Fermoir de bracelet verrouillable
CH690894A5 (fr) * 1996-07-01 2001-02-28 Vacheron & Constantin S A Fermoir dépliant, notamment à bouton.
AU3086397A (en) * 1997-01-13 1998-08-03 Gay Freres Vente Et Exportation S.A. Clasp with triple folding
DE60005479T2 (de) 2000-03-23 2004-07-01 Richemont International S.A. Armbandverschluss
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
EP4176757B1 (de) * 2021-11-08 2024-05-08 Dexel S.A. Verschluss mit klappöse

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791037A (en) * 1931-02-03 And george d
CH134431A (de) * 1929-01-10 1929-07-31 Goitry Jean Dispositif de fermeture pour pièces telles que montres-bracelets, bracelets, colliers, etc.
US1839788A (en) * 1930-05-29 1932-01-05 Gen Chain Company Foldable extension device
US1832734A (en) * 1931-02-17 1931-11-17 Gemex Co Extension device
FR537072A (fr) * 1931-04-14 1922-05-15 Etablissements Ed Jaeger Soc D Système de fermeture pour bracelets, porte-montre, etc. et produits nouveaux résultant de son application
FR826561A (fr) * 1936-12-18 1938-04-04 Chatenoud & Cie J Fermoir pour bracelets-montres métalliques extensibles et objets analogues
CH633698A5 (en) * 1979-09-26 1982-12-31 Nemi Sa Bracelet with clasp

Also Published As

Publication number Publication date
EP0115740A1 (de) 1984-08-15
DE3362646D1 (en) 1986-04-30

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