US20020010985A1 - Bracelet closure - Google Patents
Bracelet closure Download PDFInfo
- Publication number
- US20020010985A1 US20020010985A1 US09/812,838 US81283801A US2002010985A1 US 20020010985 A1 US20020010985 A1 US 20020010985A1 US 81283801 A US81283801 A US 81283801A US 2002010985 A1 US2002010985 A1 US 2002010985A1
- Authority
- US
- United States
- Prior art keywords
- central portion
- closure
- arms
- fact
- pusher
- 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.)
- Granted
Links
Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/21—Strap tighteners
- Y10T24/2143—Strap-attached folding lever
- Y10T24/2155—Jewelry-watch straps
Definitions
- the present invention relates to a closure permitting connecting the two lengths of a bracelet, particularly a watch bracelet of a chain, of metal or another material.
- closures of this type generally called expansible closures. These closures have the drawback that they are inelastic because of their blades, whose variation directly influences the clipping force and hence the safety of the closure. Moreover, these expansible closures with blades are relatively fragile, the blades being adapted to deform or to twist, thereby altering the operation of the closure.
- the object of the present invention is to overcome the drawbacks of existing expansible closures, to reinforce the rigidity of the closure, to make sure that the locking of the blades of the closure will be independent of the shape and of the elasticity of the blades, whilst permitting easy production and simple manipulation of the closure.
- FIG. 1 is a perspective view from above of the partially open closure.
- FIG. 2 is a perspective view from below the partially open closure.
- FIG. 3 is a perspective view of the closure alone (without the lengths of the bracelet) partially closed.
- FIGS. 4 and 5 are partial cross-sectional views of the closed closure in the locked and respectively unlocked positions.
- the embodiment of the expansible closure according to the invention comprises a central portion 1 and two side arms 2 , 3 .
- Each of these side arms is pivoted at one of its ends on one of the ends of the central portion 1 , with welded or riveted axles 4 , which is to say mounted rigidly and permanently.
- this central portion 1 and these arms are incurved to match the rounded shape of the wrist of the user.
- the arms 2 , 3 fold back parallel to the central portion, these three pieces are parallel and located in a same surface or plane, the arms 2 , 3 being located one in prolongation of the other and side by side along the central portion 1 .
- the free ends of the arms 2 , 3 are articulated in a conventional manner on the last links 5 of a bracelet 6 with the help of pins or screws 7 . It should be noted that these arms 2 , 3 are located in the plane of symmetry of the bracelet, whilst the central portion of the closure is offset laterally relative to this plane of symmetry of the bracelet, this central portion 1 being of course hidden, in the closed position of the closure, below the edge of the bracelet. This closure thus occupies an asymmetric position relative to the bracelet.
- the central portion 1 of the closure and its arms 2 , 3 are rigid, solid and resistant, which confers a substantial robustness to the closure.
- the central or medial portion of the central portion 1 of the closure comprises a locking device for the arms 2 , 3 in the closed position.
- This locking device shown on a larger scale in FIGS. 4 and 5, comprises a pusher 8 of trapezoidal form disposed in a recess 9 which comprises the central portion 1 .
- the pusher 8 is maintained in its place with screws 14 passing through the central portion 1 of the closure and whose heads are disposed in recesses 15 provided in the section of the central portion 1 located on the side of the arms 2 and 3 .
- This pusher can move a distance X between its locked position shown in FIG. 4 and its unlocked position of the arms 2 , 3 shown in FIG. 5.
- the locking device also comprises pins disposed in blind bores 20 provided in the ends of the arms 2 , 3 connected to the bracelet and opening on the section of the latter directed toward the central portion 1 of the closure.
- These pins comprise a sleeve 21 located in the bores 20 , enclosing a spring 22 acting on the head of a locking member 23 comprising a finger that can emerge from the sleeve 21 and hence from the arm 2 or 3 under the action of the spring 22 .
- the central or medial portion of the central portion 1 of the closure also comprises a guide and holding device for the arms 2 , 3 in the closed position.
- This guiding and holding device is constituted by a rod 10 secured to the central portion 1 and extending perpendicular to the latter outside its surface opposite the pusher 8 .
- This rod 10 ends in a holding formation 11 comprising two inclined surfaces 12 .
- the side surface of the central portion 1 on which open the recesses 15 , also comprises notches 24 whose inclined bottom causes, during closing of the closure, namely the folding down of the arms 2 , 3 toward the central portion 1 of the closure, the retraction of the locking members 23 in the sleeves 21 until complete closing of the closure in which the locking members penetrate the recesses 15 while pushing back the screws 14 and hence the pusher 8 , and lock the closure in closed position.
- the closure could comprise only one arm of a length corresponding to that of the central portion.
- the bracelet would be fixed to the free end of the central portion and to the free end of the single arm.
- the locking members would be mounted both in the central portion of the single arm, in which there would be but a single locking member.
- closure Numerous modifications of the closure could be envisioned.
- the external shape of the closure could be anything at all, the length of the arms could also vary.
- the shape of the pusher could be different as well as that of the retention members.
- the arms could be assembled onto the central portion of the bracelet in any desired manner.
- the number of locking members per arm could also vary.
- the retainer of the pusher is not necessarily in the shape of a dovetail but could have a T shape or another shape.
- the closure could be flat or incurved or else have another shape.
- This closure has numerous advantages relative to the existing closures, of which the principal ones are recited hereafter.
- closure is simple both as to its manufacture and to its handling by the user.
- the section of the central portion and of the arm or arms of the closure can be increased relative to an existing expansible closure whilst remaining of the same size. This increases the strength and durability of the closure.
- Locking takes place by locking members independent from the shape, the length and the resiliency of the arm of the closure and its central portion.
- the closing force is very great, and is independent of the return force of the springs for the pins.
- the locked position is independent of the closure.
- Opening the closure takes place with a single simple pusher, having no springs, which pusher retracts the pins.
- the return of the pusher to the locking position takes place automatically with the help of the springs of the pins during closing the closure. Locking is ensured automatically.
- the arms are guided and held precisely in their positions by a holding member secured to the central portion of the closure.
- the arms are preferably assembled only by a smooth axle which has a head at one end and whose other end is welded on the arm or the central portion for example by laser welding.
- a smooth axle which has a head at one end and whose other end is welded on the arm or the central portion for example by laser welding.
- the length of the arms is not important as a function of the locking but depends solely on the desired expansion for fitting on the wrist.
- pins By the use of pins, there is excluded the use of the resilience of the arms and hence the structure is more robust.
- the force necessary for closing the closure depends solely on the force of the pin springs and on the slope of the inclined notches giving rise to retraction of the pins. This force can be low.
- the opening force is given solely by the force of the pin springs. This closure and opening force is independent of the locking force which is much greater and is determined solely by the shear between the pins and the central portion of the closure.
- the locking force does not require any adjustment, it can be as large as desired and does not take part in the manipulation of the closure. There is thus no need to adjust this locking force.
- the pusher is located in a recess of dovetail shape, avoiding that it be pulled off and defining its path.
Landscapes
- Buckles (AREA)
- Pivots And Pivotal Connections (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Cable Accessories (AREA)
Abstract
Description
- The present invention relates to a closure permitting connecting the two lengths of a bracelet, particularly a watch bracelet of a chain, of metal or another material.
- There are known closures of this type generally called expansible closures. These closures have the drawback that they are inelastic because of their blades, whose variation directly influences the clipping force and hence the safety of the closure. Moreover, these expansible closures with blades are relatively fragile, the blades being adapted to deform or to twist, thereby altering the operation of the closure.
- The object of the present invention is to overcome the drawbacks of existing expansible closures, to reinforce the rigidity of the closure, to make sure that the locking of the blades of the closure will be independent of the shape and of the elasticity of the blades, whilst permitting easy production and simple manipulation of the closure.
- These and other objects, which will become apparent from the description which follows, are obtained by the closure according to the present invention which is distinguished by the characteristics recited in
claim 1. - The accompanying drawings show schematically and by way of example one embodiment of the expansible closure for a bracelet according to the invention.
- FIG. 1 is a perspective view from above of the partially open closure.
- FIG. 2 is a perspective view from below the partially open closure.
- FIG. 3 is a perspective view of the closure alone (without the lengths of the bracelet) partially closed.
- FIGS. 4 and 5 are partial cross-sectional views of the closed closure in the locked and respectively unlocked positions.
- The embodiment of the expansible closure according to the invention comprises a
central portion 1 and twoside arms central portion 1, with welded or rivetedaxles 4, which is to say mounted rigidly and permanently. Generally, thiscentral portion 1 and these arms are incurved to match the rounded shape of the wrist of the user. In closed position, thearms arms central portion 1. - The free ends of the
arms last links 5 of abracelet 6 with the help of pins orscrews 7. It should be noted that thesearms central portion 1 being of course hidden, in the closed position of the closure, below the edge of the bracelet. This closure thus occupies an asymmetric position relative to the bracelet. - In this construction, the
central portion 1 of the closure and itsarms - The central or medial portion of the
central portion 1 of the closure comprises a locking device for thearms pusher 8 of trapezoidal form disposed in arecess 9 which comprises thecentral portion 1. - The
pusher 8 is maintained in its place withscrews 14 passing through thecentral portion 1 of the closure and whose heads are disposed inrecesses 15 provided in the section of thecentral portion 1 located on the side of thearms arms - In the locked position (FIG. 4), the
pusher 8 is retained in therecess 9 by its inclined surfaces and, generally, the head of thescrews 14 is located at the bottom of therecesses 15. - The locking device also comprises pins disposed in
blind bores 20 provided in the ends of thearms central portion 1 of the closure. These pins comprise asleeve 21 located in thebores 20, enclosing aspring 22 acting on the head of alocking member 23 comprising a finger that can emerge from thesleeve 21 and hence from thearm spring 22. - In the locked position (FIG. 4) the fingers of the
locking members 23 extend within therecesses 15 of thecentral portion 1 of the closure. There is thus obtained a positive locking, which will be secure and independent of the shape or dimensions of thearms - The central or medial portion of the
central portion 1 of the closure also comprises a guide and holding device for thearms - This guiding and holding device is constituted by a
rod 10 secured to thecentral portion 1 and extending perpendicular to the latter outside its surface opposite thepusher 8. Thisrod 10 ends in aholding formation 11 comprising twoinclined surfaces 12. - When the
arms inclined surfaces 12 of theholding formation 11 of therod 10 are pressed against theinclined surfaces 16 on thearms rod 10 of thecentral portion 1 engaging between theend surfaces 17 of these ends of thearms - When the
arms inclined surfaces 12 of therod 10 coming into contact with theinclined surfaces 16 of the twoarms closure 1. - To open the closure, it is necessary first to unlock and move the
pusher 8 against the action of thespring 22 of the pins. When the pusher abuts against the bottom of therecess 9, the head of thescrews 14 is located in the plane of the side surface of thearms central portion 1 of the closure and lockingmembers 23 are thus retracted within thearms arms axle 4, giving rise to opening of the closure. - The side surface of the
central portion 1, on which open therecesses 15, also comprisesnotches 24 whose inclined bottom causes, during closing of the closure, namely the folding down of thearms central portion 1 of the closure, the retraction of thelocking members 23 in thesleeves 21 until complete closing of the closure in which the locking members penetrate therecesses 15 while pushing back thescrews 14 and hence thepusher 8, and lock the closure in closed position. - In a modification, the closure could comprise only one arm of a length corresponding to that of the central portion. The bracelet would be fixed to the free end of the central portion and to the free end of the single arm. The locking members would be mounted both in the central portion of the single arm, in which there would be but a single locking member.
- Numerous modifications of the closure could be envisioned. The external shape of the closure could be anything at all, the length of the arms could also vary. Similarly, the shape of the pusher could be different as well as that of the retention members. The arms could be assembled onto the central portion of the bracelet in any desired manner.
- The number of locking members per arm could also vary. The retainer of the pusher is not necessarily in the shape of a dovetail but could have a T shape or another shape. The closure could be flat or incurved or else have another shape.
- This closure has numerous advantages relative to the existing closures, of which the principal ones are recited hereafter.
- The closure is simple both as to its manufacture and to its handling by the user.
- Because of its design, the section of the central portion and of the arm or arms of the closure can be increased relative to an existing expansible closure whilst remaining of the same size. This increases the strength and durability of the closure.
- For the user, access to the pusher is facilitated, it does not extend beyond the bracelet because the central portion of the closure is laterally offset.
- The action of closing the closure is disassociated from the locking action. In fact, this locking takes place only when the arms reach their closed position parallel to the central portion of the closure.
- Locking takes place by locking members independent from the shape, the length and the resiliency of the arm of the closure and its central portion. The closing force is very great, and is independent of the return force of the springs for the pins. The locked position is independent of the closure.
- Opening the closure takes place with a single simple pusher, having no springs, which pusher retracts the pins. The return of the pusher to the locking position takes place automatically with the help of the springs of the pins during closing the closure. Locking is ensured automatically.
- In the closed position, the arms are guided and held precisely in their positions by a holding member secured to the central portion of the closure.
- The arms are preferably assembled only by a smooth axle which has a head at one end and whose other end is welded on the arm or the central portion for example by laser welding. Such a construction is very robust and reliable. It comprises no screw that can unscrew in time.
- The length of the arms is not important as a function of the locking but depends solely on the desired expansion for fitting on the wrist. By the use of pins, there is excluded the use of the resilience of the arms and hence the structure is more robust.
- The force necessary for closing the closure depends solely on the force of the pin springs and on the slope of the inclined notches giving rise to retraction of the pins. This force can be low. The opening force is given solely by the force of the pin springs. This closure and opening force is independent of the locking force which is much greater and is determined solely by the shear between the pins and the central portion of the closure.
- The locking force does not require any adjustment, it can be as large as desired and does not take part in the manipulation of the closure. There is thus no need to adjust this locking force.
- The pusher is located in a recess of dovetail shape, avoiding that it be pulled off and defining its path.
- This closure is hence easy to use, simple to produce and to mount, avoids any untimely opening and is particularly robust.
Claims (7)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00106275 | 2000-03-23 | ||
EP00106275.1 | 2000-03-23 | ||
EP00106275A EP1136013B1 (en) | 2000-03-23 | 2000-03-23 | Bracelet fastener |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020010985A1 true US20020010985A1 (en) | 2002-01-31 |
US6449809B2 US6449809B2 (en) | 2002-09-17 |
Family
ID=8168207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/812,838 Expired - Lifetime US6449809B2 (en) | 2000-03-23 | 2001-03-21 | Bracelet closure |
Country Status (6)
Country | Link |
---|---|
US (1) | US6449809B2 (en) |
EP (1) | EP1136013B1 (en) |
JP (1) | JP2001286310A (en) |
CN (1) | CN1144546C (en) |
AT (1) | ATE250358T1 (en) |
DE (1) | DE60005479T2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040075844A1 (en) * | 2002-07-01 | 2004-04-22 | Marron Joseph C. | Frequency-scanning interferometer with non-specular reference surface |
CN102823999A (en) * | 2011-06-16 | 2012-12-19 | 蒙特雷布勒盖股份有限公司 | Triple-opening clasp |
US20130255043A1 (en) * | 2012-03-27 | 2013-10-03 | Rolex S.A. | Fold-over clasp for a bracelet |
US20150121668A1 (en) * | 2013-11-07 | 2015-05-07 | The Swatch Group Management Services Ag | Bracelet clasp |
WO2015079408A1 (en) * | 2013-11-28 | 2015-06-04 | Grand Rainbow International Limited | Locking mechanism for jewelry |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH703540B1 (en) * | 2005-01-25 | 2012-02-15 | Lvmh Swiss Mft Sa | Folding clasp for bracelet and method of assembling such a clasp. |
DE102013102662A1 (en) * | 2012-03-16 | 2013-09-19 | Momo Plus Ag | Bracelet latch for clock bracelet, has pivotable closing portion that is provided with spring element that is latched with locking element arranged on lower closing portion |
EP2813156B1 (en) * | 2013-06-12 | 2017-04-05 | Simon et Membrez S.A. | Clasp for piece of jewellery or wristwatch |
US9486042B2 (en) * | 2014-06-05 | 2016-11-08 | Google Technology Holdings LLC | Wristband with recessed clasp and method of assembling and operating same |
CH713613B1 (en) * | 2017-03-23 | 2021-03-15 | Bulgari Horlogerie Sa | Folding clasp |
CH715988B1 (en) * | 2019-03-21 | 2022-05-31 | Bulgari Horlogerie Sa | Bracelet clasp. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2532840A (en) * | 1948-02-03 | 1950-12-05 | Kreisler Mfg Corp Jacques | Folding extension device |
EP0115740B1 (en) * | 1983-02-02 | 1986-03-26 | CORNU & CIE SA | Foldable fastener for a bracelet |
FR2705873B1 (en) * | 1993-06-03 | 1995-08-11 | Ferrario Luigi | Folding clasp type bracelet. |
FR2735335B1 (en) * | 1995-06-15 | 1997-08-01 | Smh Management Services Ag | FASTENER BUCKLE CLASP |
FR2745694B1 (en) * | 1996-03-08 | 1998-04-30 | Smh Management Services Ag | EXTENSIBLE CLASP FOR BRACELET |
DE19729903A1 (en) * | 1997-07-12 | 1999-01-14 | Jaeger Lecoultre Sa | bracelet |
EP0914781A1 (en) * | 1997-10-30 | 1999-05-12 | Dexel S.A. | Folding fastener for a bracelet |
JPH11318522A (en) * | 1998-05-14 | 1999-11-24 | Zanon:Kk | Fastener for band member |
-
2000
- 2000-03-23 EP EP00106275A patent/EP1136013B1/en not_active Expired - Lifetime
- 2000-03-23 DE DE60005479T patent/DE60005479T2/en not_active Expired - Lifetime
- 2000-03-23 AT AT00106275T patent/ATE250358T1/en not_active IP Right Cessation
-
2001
- 2001-03-16 CN CNB011098066A patent/CN1144546C/en not_active Expired - Lifetime
- 2001-03-21 US US09/812,838 patent/US6449809B2/en not_active Expired - Lifetime
- 2001-03-23 JP JP2001085102A patent/JP2001286310A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040075844A1 (en) * | 2002-07-01 | 2004-04-22 | Marron Joseph C. | Frequency-scanning interferometer with non-specular reference surface |
CN102823999A (en) * | 2011-06-16 | 2012-12-19 | 蒙特雷布勒盖股份有限公司 | Triple-opening clasp |
US20130255043A1 (en) * | 2012-03-27 | 2013-10-03 | Rolex S.A. | Fold-over clasp for a bracelet |
US9282792B2 (en) * | 2012-03-27 | 2016-03-15 | Rolex Sa | Fold-over clasp for a bracelet |
US20150121668A1 (en) * | 2013-11-07 | 2015-05-07 | The Swatch Group Management Services Ag | Bracelet clasp |
US9173460B2 (en) * | 2013-11-07 | 2015-11-03 | The Swatch Group Management Services Ag | Bracelet clasp |
WO2015079408A1 (en) * | 2013-11-28 | 2015-06-04 | Grand Rainbow International Limited | Locking mechanism for jewelry |
Also Published As
Publication number | Publication date |
---|---|
ATE250358T1 (en) | 2003-10-15 |
DE60005479T2 (en) | 2004-07-01 |
EP1136013A1 (en) | 2001-09-26 |
EP1136013B1 (en) | 2003-09-24 |
JP2001286310A (en) | 2001-10-16 |
CN1144546C (en) | 2004-04-07 |
DE60005479D1 (en) | 2003-10-30 |
US6449809B2 (en) | 2002-09-17 |
CN1315155A (en) | 2001-10-03 |
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Legal Events
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AS | Assignment |
Owner name: CONSEILS ET MANUFACTURES VLG SA, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:THALHEIM, JEAN-FRANCOIS;REEL/FRAME:011975/0997 Effective date: 20010424 |
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Owner name: RICHEMONT INTERNATIONAL SA, SWITZERLAND Free format text: MERGER;ASSIGNOR:CONSEILS ET MANUFACTURES VLG SA;REEL/FRAME:013663/0840 Effective date: 20020925 |
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Owner name: OFFICINE PANERAI AG, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RICHEMONT INTERNATIONAL S.A.;REEL/FRAME:032232/0470 Effective date: 20131115 |
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