EP4298948A1 - Armband mit kettengliedern aus hartem material - Google Patents

Armband mit kettengliedern aus hartem material Download PDF

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Publication number
EP4298948A1
EP4298948A1 EP22182358.6A EP22182358A EP4298948A1 EP 4298948 A1 EP4298948 A1 EP 4298948A1 EP 22182358 A EP22182358 A EP 22182358A EP 4298948 A1 EP4298948 A1 EP 4298948A1
Authority
EP
European Patent Office
Prior art keywords
link
bracelet
row
connecting rod
central link
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.)
Pending
Application number
EP22182358.6A
Other languages
English (en)
French (fr)
Inventor
Sébastien RETROUVEY
Anthony TAPIZ-DELGADO
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.)
Comadur SA
Original Assignee
Comadur 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 Comadur SA filed Critical Comadur SA
Priority to EP22182358.6A priority Critical patent/EP4298948A1/de
Priority to US18/163,985 priority patent/US20240000201A1/en
Priority to JP2023019725A priority patent/JP2024006930A/ja
Priority to CN202310800223.5A priority patent/CN117322709A/zh
Publication of EP4298948A1 publication Critical patent/EP4298948A1/de
Pending 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
    • A44C5/02—Link constructions
    • A44C5/04—Link constructions extensible
    • A44C5/08—Link constructions extensible having separate links
    • 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 invention relates to a bracelet formed of elements articulated together, in particular of links of which at least some are made of a hard material. It also relates to a part, including a timepiece such as a watch or even a piece of jewelry, comprising said bracelet.
  • hard material we mean materials having a Vickers hardness greater than 1200 HV. These hard materials are, for example, ceramics such as silicon nitride, zirconium oxide or aluminum oxide. It can also be cermets. Hard materials are used for their mechanical properties, particularly because they are difficult to scratch.
  • the aim of the present invention is to overcome the aforementioned drawbacks by proposing an assembly between links making it possible to control the amplitude of rotation of the links so as to avoid collisions.
  • the connecting rods which connect the different rows of links of the bracelet have a shoulder which is housed in a recess dug in the links of the central row. This recess is delimited by two stops which limit the angular movement of the links of the central row relative to the connecting rod.
  • the axes serving as junctions and pivots between the links are used to limit the amplitude of rotation of the links and absorb all or part of the stresses during abutment.
  • These axes are protected from the outside by the links and can therefore be made of a less hard material and therefore less fragile than the links. They can thus be easily shaped by machining to produce the shoulders which make it possible to control the amplitude of rotation.
  • the central link has a protruding part, also called coverage zone, which extends in the second and third rows between the side links.
  • This protruding part of the central link as well as the side link have a particular shape which brings an aesthetic touch to the bracelet without there being any contact between the protruding part and the side links when the central link pivots. This absence of contact makes it possible to avoid placing the links made in the hard material under stress.
  • the assembly of the bracelet according to the invention makes it possible to control the range of mobility of the links of a bracelet made of hard material with a design including coverage zones in order to ensure its solidity by avoiding collisions or damage. stresses on fragile parts of hard material during handling.
  • the present invention relates to a bracelet 1 comprising at least three rows of links with a first row 8 comprising the central links 2 and, a second row 9 and a third row 10 on either side of the first row 8 comprising the links lateral 3.
  • a partial view of this bracelet 1 with two adjacent central links 2 and two lateral links 3 is shown in the figure 1 .
  • This bracelet is intended, for example, to equip a timepiece such as a watch or a piece of jewelry.
  • the assembly as described below is more specifically adapted for a bracelet of which certain links are at least partially made of a hard material.
  • hard material we mean a material whose hardness is substantially equal to or greater than 1200 HV and which accepts little or no plastic deformation before breaking.
  • hard material for example, enamels, precious or non-precious stones such as ruby, sapphire or quartz, ceramics such as an oxide, a carbide or a nitride, cermets or even hard metals. Note that although the assembly is specifically adapted for links made of hard material, it is also applicable for links made of more ductile materials.
  • the connecting rod 4 between the central link 2 and the two lateral links 3 comprises a shoulder 5 abutting against the walls 6b, 6c of a recess 6 dug in the central link 2, during the pivoting of the link central 2 ( figures 2A And 3 ).
  • the connecting rod is made of a less hard material such as steel or a titanium alloy to facilitate machining.
  • the connecting rod material has a hardness below 1200 HV.
  • the central link 2 comprises two through holes 2a each intended to receive the connecting rod 4, which will also be described as an axis, and the lateral links 3 each comprise two blind or through holes 3a to accommodate the end of the connecting rod 4 ( figures 2A And 8 ).
  • the through holes 2a of the central link 2 open onto the recess 6 dug in the central link 2 and this only at one end of each through hole ( Figure 3 ).
  • the recess for the two through holes can be dug on the same face of the central link as shown in Figure 2A or respectively for a through hole on one face of the central link and for the other through hole on the other face of the central link as for the assembly of the Figure 2B .
  • the connecting rod 4 is integral with the lateral link 3 and the central link 2 has a relative movement in rotation relative to this integral block around the axis formed by the connecting rod.
  • the connecting rod has a portion of non-circular section at each of its ends which is positioned in a portion of the blind or through hole of the side link also provided with a non-circular section.
  • the non-circular section portion of the connecting rod comprises at least one flat which is positioned against a plane inside the hole in the side link.
  • the portion of non-circular section of the connecting rod 4 comprises two flats 4a, for example diametrically opposed, which are positioned against two planes 3b which delimit the blind or through hole 3a of the lateral link 3 ( figures 3 And 7 ).
  • the fixing of the connecting rod 4 within the lateral link 3 can be carried out using a screw 7 which is positioned at one end of the hole 3a which in this case is through as shown in Figures 2A and 2B . Fixing could also be achieved by gluing within the blind or through hole of the side link. Alternatively, the fixing of the connecting rod within the hole in the side link could simply be carried out by gluing without requiring a portion of non-circular section at the ends of the connecting rod.
  • the amplitude of the relative movement in rotation between the connecting rod 4 and the central link 2 is limited by the shoulder 5 of the connecting rod 4 which is supported either on the first stop 6b, or on the second stop 6c of the recess 6 of the central link 2 depending on the pivoting of the latter.
  • the shoulder 5 flares radially in an arc of a circle from the connecting rod 4.
  • the arc of a circle 5a is connected to the connecting rod 4 by a first flank 5b and a second flank 5c which are supported on the first stop 6b or on the second stop 6c ( Figure 3 ).
  • the first stop 6b is formed by the innermost wall of the recess, i.e.
  • the two connecting rods and their shoulders are arranged within the recesses of the central link so as to curve the bracelet in a direction towards the inside of the bracelet as illustrated in Figure 6A .
  • the two connecting rods are positioned angularly differently in the two through holes. In the flat position, the shoulder 5 for the two connecting rods 4 rests on the interior wall 6b of the recess 6 ( Figure 4A ).
  • a connecting rod it is the first side 5b which is supported on the interior wall 6b of the recess and for the other connecting rod it is the second side 5c which is supported on the interior wall 6b of the recess ( Figure 5C ).
  • the shoulder 5 of the two rods rests on the outer wall 6c of the recess 6 ( figure 4B ).
  • the second sidewall 5c which bears on the outer wall 6c of the recess and for the other connecting rod it is the first sidewall 5b which bears on the outer wall 6c of the recess ( Figure 6C ).
  • the recess 6 dug at the end of the through hole also flares out in an arc of a circle with the arc of a circle 6a of the recess 6 having a length greater than that of the arc of a circle 5a of the shoulder 5 to allow the latter to pivot within the recess.
  • the length of the arc of a circle of the recess in relation to that of the arc of a circle of the shoulder makes it possible to define the range of angular displacement of the central link in relation to the connecting rod.
  • the amplitude of rotation of the central link relative to the connecting rod is less than or equal to 150°, preferably less than or equal to 60°.
  • each central link 2 has an amplitude of rotation of 60°, which allows, after rotation of two adjacent central links by 60°, to have a pivot of 120° between two adjacent lateral links 3 as shown schematically in Figures 5C and 6C .
  • the lateral links 3 have two circular ears 3c which are positioned in a circular recess 2c formed in a protruding part 2b of the central link 3 disposed between the two through holes 2a ( 5D figures And 11 ).
  • the protruding part 2b of the central link 2 is inserted between two side links 3 to respectively constitute the second row 9 and the third row 10 with the side links 3 ( figure 1 ).
  • the protruding part 2b of the central link 2 has a thickness substantially equal to that of the side link 3.
  • the ears 3c of the side links 3 are housed without contact within the circular recess 2c of the protruding part 2b of the central links.
  • the lugs 3c of the side link are surmounted by a recessed portion 3d relative to the latter ( figure 5D ).
  • This recessed portion 3d is positioned without contact opposite the top 2d of the protruding part 2b which overlooks the recess 2c.
  • the assembly of the different elements of the bracelet is done as follows. It can be done as in the Figure 2A with all the recesses of the central links which are hollowed out on the same face of the link, with therefore all the connecting rods provided with the shoulder which are introduced via this face. It can also be made as in the Figure 2B with a recess dug alternately on one side and on the other side of the central link, the connecting rod being introduced with this same alternation.
  • the assembly principle is substantially the same in both cases and described in relation to the figures 2A And 8 to 11 .
  • Figure 10 presents a simplified view where the central link is absent.
  • the two connecting rods 4, and more specifically the part with the flats 4a, are mounted in the respective holes 3a of the lateral link 3 with the shoulder 5 of the connecting rod 4 which is positioned with axial play facing the link lateral 3.
  • the fixing between the connecting rods 4 and the lateral link 3 is carried out using the screws 7 which are introduced into one end of the through hole 3a of the lateral link up to the hollow of the connecting rod .
  • fixing can be carried out by gluing.
  • a central link 2 is threaded onto one of the connecting rods 4 with the shoulder 5 which is housed with axial play in the recess 6 of the central link 2 and bears on the interior wall 6b of the recess.

Landscapes

  • Pivots And Pivotal Connections (AREA)
  • Toys (AREA)
  • Adornments (AREA)
EP22182358.6A 2022-06-30 2022-06-30 Armband mit kettengliedern aus hartem material Pending EP4298948A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP22182358.6A EP4298948A1 (de) 2022-06-30 2022-06-30 Armband mit kettengliedern aus hartem material
US18/163,985 US20240000201A1 (en) 2022-06-30 2023-02-03 Wristlet with links made of a hard material
JP2023019725A JP2024006930A (ja) 2022-06-30 2023-02-13 硬質材料で作られたリンク付きリストレット
CN202310800223.5A CN117322709A (zh) 2022-06-30 2023-06-30 具有由硬质材料制成的节的腕带

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22182358.6A EP4298948A1 (de) 2022-06-30 2022-06-30 Armband mit kettengliedern aus hartem material

Publications (1)

Publication Number Publication Date
EP4298948A1 true EP4298948A1 (de) 2024-01-03

Family

ID=82493869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22182358.6A Pending EP4298948A1 (de) 2022-06-30 2022-06-30 Armband mit kettengliedern aus hartem material

Country Status (4)

Country Link
US (1) US20240000201A1 (de)
EP (1) EP4298948A1 (de)
JP (1) JP2024006930A (de)
CN (1) CN117322709A (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998008408A1 (fr) * 1996-08-29 1998-03-05 Tag Heuer S.A. Bracelet a maillons articules et montre munie d'un tel bracelet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998008408A1 (fr) * 1996-08-29 1998-03-05 Tag Heuer S.A. Bracelet a maillons articules et montre munie d'un tel bracelet

Also Published As

Publication number Publication date
JP2024006930A (ja) 2024-01-17
CN117322709A (zh) 2024-01-02
US20240000201A1 (en) 2024-01-04

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