EP2057914B1 - Bracelet à maillons articulés - Google Patents

Bracelet à maillons articulés Download PDF

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Publication number
EP2057914B1
EP2057914B1 EP07405321.6A EP07405321A EP2057914B1 EP 2057914 B1 EP2057914 B1 EP 2057914B1 EP 07405321 A EP07405321 A EP 07405321A EP 2057914 B1 EP2057914 B1 EP 2057914B1
Authority
EP
European Patent Office
Prior art keywords
links
link
fixed
bearing
assembly
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
EP07405321.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2057914A1 (fr
Inventor
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 EP07405321.6A priority Critical patent/EP2057914B1/fr
Priority to US12/263,803 priority patent/US7730710B2/en
Priority to JP2008283267A priority patent/JP5355992B2/ja
Priority to CN200810172875.4A priority patent/CN101438871B/zh
Publication of EP2057914A1 publication Critical patent/EP2057914A1/fr
Application granted granted Critical
Publication of EP2057914B1 publication Critical patent/EP2057914B1/fr
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
    • A44C5/02—Link constructions
    • A44C5/10—Link constructions not extensible
    • A44C5/107—Link constructions not extensible with links made of more than two elements including connecting elements

Definitions

  • the present invention relates to an articulated link bracelet, especially for a watch, comprising at least three longitudinal rows side by side of links (MB, MC) offset longitudinally from one row adjacent to the other and connected and positioned by passages transverse members which receive connecting rods, a bracelet in which each articulation comprises, on the one hand, axially guided friction surfaces and, on the other hand, lateral guided friction surfaces, some of which are of a first material whose hardness is> 800Hv.
  • the object of the present invention is to reduce the wear of the friction surfaces of the joints of metal link bracelets.
  • the subject of the invention is an articulated metal link bracelet according to claim 1.
  • the hinge surface is that of a ceramic element sintered or deposited on a substrate, or a ceramic-metal mixture sintered or deposited on a substrate in the form of alternating ceramic metal layers.
  • a hinge surface is that of a substrate coated with amorphous carbon.
  • the connecting elements of the strands of bracelets to the watch case, as well as the clasp which serves to connect the two strands to one another and which, in the case of this type of bracelet is generally a clasp said "to folding clasp ", do not form part of the invention. Also, they were not represented. This obviously does not prevent the joint surfaces between the links of the bracelet and the adjacent elements of the clasp can use the pairs of materials according to the present invention, it relates to all the joints of the different elements of a bracelet link, including its articulation with the clasp and possibly the watch case.
  • two center links MC and four edge links MB are shown forming two sets of integral links. articulated to each other.
  • these links are of a material that is not likely to reduce wear when it rubs against a surface whose hardness is> 800HV, such as a ceramic surface or a ceramic-metal mixture.
  • the center links MC are offset in the longitudinal direction of the bracelet relative to the two rows of edge links MB, so that one center link MC is astride two edge links MB of each row.
  • a center link MC has three transverse passages, two of which each receive a connecting element 1 constituted by a rod whose two end portions of smaller diameters protrude on each side of the center link MC.
  • the protruding parts of the connecting elements 1 are intended to be driven into blind holes 2 of two links of edges MB which face each other.
  • a center link MC forms a unitary assembly with the two edge links MB in which the projecting ends of the connecting elements 1 are driven out.
  • the joint is thus made between two sets of adjacent integral links, each having a center link MC offset longitudinally with respect to two MB edge links aligned transversely to the bracelet.
  • the center link MC of this set of integral links comprising a center link MC and two edge links MB is articulated to two edge links of the same set of adjacent integral links.
  • an insert bearing element in this example, formed by a sintered ceramic tube 3 or a sintered metal ceramic mixture is engaged inside the third transverse passage 4 of the center link MC.
  • the ceramic chosen will advantageously be zirconia.
  • An axis 5 is freely engaged in this tube 3 and its ends are driven in two blind holes 6 of the two edge links MB of the adjacent integral link assembly.
  • the bracelet is made of a standard steel for a bracelet, such as 316L steel, it is necessary that the tube 3, made of sintered ceramic or in a sintered metal ceramic mixture, be fixed to the center link MC, by driving or by gluing by example.
  • a second axis of articulation 5 or 5a if, as illustrated on the figure 1 the hinge pin 5a is an axis of which an end portion is a screw head and the other end portion is threaded to screw into an opening 6a of the adjusting edge link MB, while the opening 6b for the screw head passes through the adjusting edge link MB.
  • These axes 5a and the adjusting edge links MB with openings 6a, 6b are intended to allow adjustment of the length of the bracelet by removal or addition of edge links MB and adjustment axes 5a. This is true for all forms of execution, so that this adjustment system, moreover conventional in this type of bracelet, will no longer be described.
  • the hinge axis 5a is replaced by a normal hinge axis 5.
  • axis of articulation is an axis 5, it is intended to be fixed in the openings 6 of the two opposite edge links MB for the articulation of a set of integral links MC, MB adjacent as shown.
  • the hinge pins 5, 5a are made of one of the materials which makes it possible to reduce the frictional wear with the sintered ceramic ceramic tubes or metal ceramic mixture 3.
  • One of these materials is a cobalt alloy.
  • the other materials capable of reducing frictional wear with the tube 3, under the conditions to which the wristbands of During their use mention may be made of nickel-free stainless steels, gold and gold alloys, platinum and platinum alloys, titanium and titanium alloys, and all platinoids and their alloys.
  • the choice of material is essentially based on the material or materials used to make links MB, MC.
  • the sintered ceramic tube 3 of the first embodiment is replaced here by two shorter bearing tubes 13 disposed on either side of the central portion of larger diameter of the hinge axis 15.
  • the positions respective axial axes of these bearing tubes 13 are defined by the bearing surfaces between the central part of the hinge axis 15 and the adjacent parts on which the bearings 13 are mounted.
  • the bearing tubes 13 are driven out or glued into the opening 14 of the center link MC leaving a very small clearance (a few hundredths of a millimeter) between the bearing tubes 13 and the bearing surfaces of the central part of the hinge pin 15 .
  • the ends of the hinge pin 15 are driven into the openings 16 of the edge links MB, so as to provide a clearance between the lateral faces of the edge links MB and the lateral faces of the link member.
  • MC center.
  • This game is chosen very slightly larger than the clearance between the bearing tubes 13 and the bearing surfaces of the central part of the hinge pin 15, so that the lateral faces of the links MB and MC can not touch each other and that the lateral friction only occurs between the ceramic bearing tubes 13 and the bearing surfaces of the central part of the hinge pin which, depending on the nature of the material of which the links MC, MB, are formed of cobalt alloy , in nickel-free stainless steel, in gold alloy, in platinum alloy or platinoid alloy or titanium alloy.
  • the diameter of the central part of the hinge axis 15 is obviously smaller than that of the opening 14 of the center link MC, so that the friction between the cylindrical surfaces occurs only between the inner faces of the bearing tubes and pivot shaft portions 15 which pass through the respective bearing tubes 13.
  • the form of execution illustrated by the figure 3 aims at the same goal as the previous one.
  • the bearing tubes 23 are completely housed, fixed or not depending on the nature of the material of which the links are made, in the edge links MB.
  • the pivot axes 25 are not fixed in the edge links MB, but in the center link MC.
  • Lateral friction occurs between one end of the bearing tube 23 and a bearing surface of the hinge pin 25 which is in one of the materials capable of reducing wear with the ceramic bearing tube or a sintered metal ceramic mixture.
  • the bearing tube could be coated metal, amorphous carbon, also called DLC (diamond like carbon), ceramic or alternating layers of ceramic and metal deposited by PVD (Physical Vapor Deposition).
  • the form of execution of the figure 4 comprises a bearing tube 33 fixed in a center link MC.
  • the hinge axis 35 is here divided into two parts. Each part of this hinge axis comprises a segment of larger diameter, driven in an edge link MB and a part of smaller diameter, freely engaged in the bearing tube 33, so that once assembled the distance between the segments of larger diameter is equal to the length of the tube increased by a functional game allowing the pivoting of the links.
  • the bearing tube 33 is made of sintered ceramic, or a metal ceramic mixture, the hinge pin is in one of the abovementioned materials to reduce wear with the ceramic tube.
  • the lateral friction is between the ends of the bearing tube 33 and the bearing between the segments of different diameters of the hinge axis 35 in two parts.
  • the two pivotal half-axes can be replaced by an articulation pin 45 comprising a segment of larger diameter driven in an edge link MB and a segment of smaller diameter freely engaged in the bearing tube 43 and a sleeve 45a. driven in the edge link MB located opposite the edge link in which the larger diameter segment of the hinge axis 45 is driven.
  • the bearing tube 53 is divided into two half-tubes shorter to avoid the chase over the entire width of the MC center link.
  • the figure 7 illustrates a device for adjusting the length of the bracelet.
  • the hinge axis 66 has a thread 66a at one end and a screw head 66b at the opposite end.
  • two small bearing tubes 65 are driven into the edge links MB. Lateral friction occurs between these bearing tubes 65 and the bearing tubes 63 driven into the center link MC.
  • the bearing tube (s) are replaced by balls 73 which are taken sandwiched between two bushes 75 driven in a center link MC and two bushes 75a driven respectively in the two links of adjacent edges MB.
  • the edge links MB are assembled by driving the connecting elements 71 which hold the balls 73 in contact with the annular edges of the bushes 75, 75a which advantageously form frustoconical surfaces.
  • the lens-shaped member 85 is in one of the abovementioned materials chosen for its low frictional wear with the ceramic and is housed in a housing 84a formed in the inner side face of each edge link MB, with its domed surface projecting this side face to come into contact with the convex face of the ceramic member 83.
  • the whole is maintained by the connecting elements 81 driven in the two links of edges.
  • the lenses 83, 85 are fixed in their housing 84, 84a, for example by gluing.
  • the bearing tube is integral with the link and can not rotate or translate therein.
  • Figures 10 to 14 are alternative means of attachment.
  • the figure 10 relates to a bearing tube 93 provided with recessed surfaces 93a to cooperate with locking keys 90, preferably of plastic, engaged in adjacent openings 94a and communicating with a transverse passage 94 receiving the bearing tube 93, fitted tightly between the tube and the shaft 91.
  • Another way of securing the bearing tube 103 in the center link MC consists of producing a tube in the form of a sintered ceramic profile whose non-circular section has an outgrowth as illustrated by FIG. figure 11 .
  • the section of this section 103 corresponds to a portion of the section of the passage 104 formed transversely to the center link MC.
  • the protrusion of the section must be sufficient to come into contact with the links MB and thus block the translation of the profiled tube.
  • the axis of articulation 105 is similar to the axes of joints of the Figures 5, 6 and 10 with a larger diameter end segment driven into an edge link MB on one side of the center link MC, a bushing 105a being driven into the edge link MB located on the other side of the center link MC.
  • This bushing 105a and the span between the larger diameter segment and the smaller diameter segment of the hinge axis 105 serve for lateral friction with the ends of the profiled bearing tube 103, the length of which is slightly greater than the width of center link MC.
  • the center link MC is a hollow section in the transverse direction, in the opening 117 of which is introduced a sintered ceramic or ceramic ceramic insert 113, the section of which is exactly complementary, with the clearance, to that of the opening 117 of the hollow section forming the center link MC.
  • the insert 113 has three passages 114, two for the connecting elements 111 whose ends are driven in the edge links MB of the two outer rows of the bracelet and a passage 114 for the hinge axis 115, identical to the axis of articulation of Figures 5, 6 , 10, 11 .
  • the material of the hinge pin 115 and the bushing 115a is made of one of the aforementioned materials for rubbing with the sintered ceramic or sintered metal ceramic insert.
  • this hinge axis 115 and the sleeve 115a will be of the same metal or alloy as the links of the bracelet when the latter is a gold alloy, platinum or platinoid. It will preferably be made of nickel-free stainless steel if the links are made of steel, or if certain links are made of steel and others are made of gold alloy. It can also be made of a metal coated with amorphous carbon.
  • the inserts 123 are in two parts driven at both ends of the opening of the hollow section forming the center link MC, so as to favor contact with the bearing surfaces of the hinge pins 125 and 125a and the inserts.
  • the rest of this variant is identical to the execution form of the figure 12 .
  • the variant of the figure 14 differs from the preceding essentially in that a spring 138 working in compression is interposed between the two inserts 133 sintered ceramic or sintered metal ceramic mixture, thus exerting a privileged contact between an insert 133 and the socket 135a driven into a link MB and which is coaxial with the hinge axis 135, and between the other insert 133 and the range between the larger diameter segment of the hinge pin 135 and its smaller diameter segment .
  • the form of execution illustrated by the figure 15 refers more specifically to a bracelet whose links are made of metal or alloy of precious metal.
  • the hinge pins 145 are advantageously in the same metal or alloy as that of the links and are preferably brazed in the edge links MB.
  • the bearings 143 are small sintered ceramic tubes, mounted free in the transverse passages 144 of the center links MC, since the friction between the ceramic and a gold or platinoid alloy is favorable from the point of view of the reduction of the wear.
  • the Figures 16A, 16B illustrate a variant of a bracelet whose links and axes of articulation are made of gold alloy or platinoid.
  • This bracelet has five rows with links alternately shifted from one row to another.
  • This bracelet thus comprises two rows of MB edge links and three rows of center links MC, MC 1 , MC 2 .
  • Two ceramic or metal ceramic mixture inserts 153 are housed in the center links MC 1 , MC 2 and have transverse passages 154 for the hinge pins 155.
  • the dimensions of the bearings 163 transverse to the strap are chosen so that the lateral friction between the links occurs exclusively between the end faces of the bearings 163, which are fixed in the links MB, MC, MC 1 , MC 2 . So all the friction is produced between these bearings 163 or between the bearings and the axes of joints 165 which are preferably made of a cobalt alloy. These axes could also be nickel-free stainless steel or another metal coated with amorphous carbon or ceramic.
  • a series of comparative tests was carried out. The results of these tests are shown in the diagram of the figure 18 .
  • the tests are performed by attempting to reproduce the actual conditions in which a watchband is used. For this purpose, the tests are carried out with a particular additive and under a controlled atmosphere.
  • the additive consists of an abrasive (silica powder) in an organic oil matrix.
  • a 1 corresponds to the frictional wear between an austenitic stainless steel disk with nickel, standard in the field of watchbands, such as 316L and a cobalt alloy ball
  • a 2 corresponds to the frictional wear between the same cobalt alloy ball rubbing against a sintered zirconia disk.
  • a 3 corresponds to the frictional wear between an 18k gold disc and a cobalt alloy ball.
  • B 1 corresponds to the frictional wear of an 18k yellow gold ball against an austenitic stainless steel disk with nickel.
  • B 2 corresponds to the frictional wear of an 18k yellow gold ball against a sintered zirconia disk.
  • B 3 corresponds to the friction wear of an 18k yellow gold ball against an 18k yellow gold disc.
  • C 1 corresponds to the friction wear of a titanium ball against an austenitic stainless steel disk with nickel.
  • C 2 is the frictional wear of a titanium ball against a sintered zirconia disk.
  • D 2 corresponds to the frictional wear of a platinum ball against a sintered zirconia disk.
  • D 4 corresponds to the frictional wear of a platinum ball against a platinum disc.

Landscapes

  • Pivots And Pivotal Connections (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Adornments (AREA)
EP07405321.6A 2007-11-06 2007-11-06 Bracelet à maillons articulés Active EP2057914B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07405321.6A EP2057914B1 (fr) 2007-11-06 2007-11-06 Bracelet à maillons articulés
US12/263,803 US7730710B2 (en) 2007-11-06 2008-11-03 Strap with articulated links
JP2008283267A JP5355992B2 (ja) 2007-11-06 2008-11-04 連接リンク付きストラップ
CN200810172875.4A CN101438871B (zh) 2007-11-06 2008-11-05 具有铰接链件的带子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07405321.6A EP2057914B1 (fr) 2007-11-06 2007-11-06 Bracelet à maillons articulés

Publications (2)

Publication Number Publication Date
EP2057914A1 EP2057914A1 (fr) 2009-05-13
EP2057914B1 true EP2057914B1 (fr) 2016-07-06

Family

ID=39267205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07405321.6A Active EP2057914B1 (fr) 2007-11-06 2007-11-06 Bracelet à maillons articulés

Country Status (4)

Country Link
US (1) US7730710B2 (ja)
EP (1) EP2057914B1 (ja)
JP (1) JP5355992B2 (ja)
CN (1) CN101438871B (ja)

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EP2260740A1 (fr) * 2009-06-08 2010-12-15 Rolex Sa Bracelet formé de maillons articulés
WO2011087395A1 (ru) * 2010-01-14 2011-07-21 Gretsov Pavel Aleksandrovich Устройство для формирования объемной композиций
US8602638B2 (en) 2010-12-08 2013-12-10 Rolex S.A. Bracelet with articulated links and use of this bracelet
EP2484246B1 (fr) 2011-02-03 2013-08-28 Montres Rado S.A. Bracelet de montre à maillons céramique
EP2568058B1 (de) * 2011-09-09 2014-12-17 iwis motorsysteme GmbH & Co. KG Gelenkkette mit hartstoffbeschichteten Kettengelenken
EP2721943B1 (fr) * 2012-10-16 2015-08-12 Rolex Sa Articulation élastique pour assemblage horloger
JP2014236781A (ja) * 2013-06-06 2014-12-18 カシオ計算機株式会社 部材連結構造、バンド取付構造、および時計
CN103349402B (zh) * 2013-05-27 2015-10-21 董志刚 一种金属表带封边机构
EP2818942B1 (fr) * 2013-06-27 2019-06-05 ETA SA Manufacture Horlogère Suisse Montre-bracelet avec goupille sacrificielle
EP2915445B1 (fr) * 2014-03-04 2016-12-14 Rolex Sa Dispositif et procédé d'assemblage à pivotement d'au moins deux pièces, ensemble correspondant de deux pièces assemblées
EP2939560B1 (fr) 2014-05-01 2018-07-11 Rolex Sa Dispositif et procédé d'assemblage à pivotement d'au moins deux pièces, ensemble correspondant de deux pièces assemblées
US10063074B2 (en) 2016-04-01 2018-08-28 Hewlett-Packard Development Company, L.P. Electronic wearable device electrode pad with collection well
US11459808B2 (en) * 2016-07-19 2022-10-04 Shenzhen Royole Technologies Co., Ltd. Flexible device
US10281883B2 (en) * 2016-12-20 2019-05-07 Motorola Mobility Llc Wearable electronic device adapted for supporting wireless communications
EP3711622A1 (fr) * 2019-03-18 2020-09-23 Montres Breguet S.A. Bracelet a maillons
US11986067B2 (en) * 2020-08-19 2024-05-21 Masimo Corporation Strap for a wearable device
US20220312741A1 (en) * 2021-03-30 2022-10-06 Morgan Hathaway Pet collar
EP4176755A1 (fr) * 2021-11-05 2023-05-10 Rolex Sa Assemblage d'un brin de bracelet sur une boîte de montre
EP4383017A1 (fr) * 2022-12-09 2024-06-12 Rolex Sa Dispositif d'articulation de deux composants horlogers

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Also Published As

Publication number Publication date
CN101438871A (zh) 2009-05-27
US7730710B2 (en) 2010-06-08
CN101438871B (zh) 2014-10-22
US20090113870A1 (en) 2009-05-07
JP5355992B2 (ja) 2013-11-27
JP2009112814A (ja) 2009-05-28
EP2057914A1 (fr) 2009-05-13

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