EP3339970B1 - Cadran d'horlogerie dont le matériau est un alliage léger - Google Patents

Cadran d'horlogerie dont le matériau est un alliage léger Download PDF

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Publication number
EP3339970B1
EP3339970B1 EP16205879.6A EP16205879A EP3339970B1 EP 3339970 B1 EP3339970 B1 EP 3339970B1 EP 16205879 A EP16205879 A EP 16205879A EP 3339970 B1 EP3339970 B1 EP 3339970B1
Authority
EP
European Patent Office
Prior art keywords
zone
dial
foot
alloy
flange
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
EP16205879.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3339970A1 (fr
Inventor
Philippe Barfuss
Frédéric Jeanrenaud
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.)
Rubattel et Weyermann SA
Original Assignee
Rubattel et Weyermann 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 Rubattel et Weyermann SA filed Critical Rubattel et Weyermann SA
Priority to EP16205879.6A priority Critical patent/EP3339970B1/fr
Priority to CN201780079310.9A priority patent/CN110178093B/zh
Priority to PCT/EP2017/082534 priority patent/WO2018114500A1/fr
Priority to JP2019551746A priority patent/JP6827126B2/ja
Priority to US16/465,305 priority patent/US20190391533A1/en
Priority to EP17811613.3A priority patent/EP3559758B1/fr
Publication of EP3339970A1 publication Critical patent/EP3339970A1/fr
Application granted granted Critical
Publication of EP3339970B1 publication Critical patent/EP3339970B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/12—Selection of materials for dials or graduations markings
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/14—Fastening the dials to the clock or watch plates
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe

Definitions

  • the invention relates to a timepiece dial 1 comprising a flange 2 whose material is a first alloy, comprising on a first side at least one display area 3 visible by a user, and on a second side at least one foot 4 for positioning and/or fixing said dial 1 in a timepiece movement 100, wherein said flange 2 comprises at least one receiving zone 5 complementary to an end zone 6 of at least one said foot 4 which is a weldable foot 40 arranged to be welded or brazed with said flange 2 at the interface between said reception zone 5 and said end zone 6, and of which the material of said weldable foot 40 is a second weldable or brazable alloy with said first alloy, at least one said reception zone 5 enveloping a said respective end zone 6 relating to the assembly of the same said weldable foot 40, or at least one said end zone 6 enveloping a said respective reception zone 5 relating to the ssemblage of the same said weldable foot 40, or at least a pair formed of
  • the invention also relates to a one-piece dial assembly, the material of which is an alloy of aluminum and titanium, comprising such a dial.
  • the invention relates to the field of display components for watchmaking or for scientific instruments or measuring devices.
  • Clockwork or scientific instrument dials have feet for fixing and/or positioning on a plate or in a movement.
  • feet are useful for the dial manufacturing process, for attaching supports or for making deposits in galvanic baths, performing the dual function of holding element and current guide.
  • these feet are made of copper, coated with a fine deposit of gold to prevent their oxidation and improve their electrical contact.
  • the dials are generally made of copper, brass, nickel silver or similar alloy, so the behavior during the different stages of the process is the same on the dial and the feet that it comprises.
  • the resistance welding process makes it possible to join these feet and dial, by subjecting them to an energy pulse in the direction of the foot, this energy locally melting the metal at the interface of the dial and the foot, at one end of the foot called the pivot, which is of a defined diameter, often smaller than the diameter of the foot, over a defined height, and which constitutes a fusible element which ensures the connection with the dial.
  • copper alloy feet are not suitable for making dials made of certain light alloys, in particular aluminum alloys.
  • copper alloy feet dissolve during electrochemical conversion processes, such as anodization, anodic oxidation or the like, in baths or electrolytes comprising sulfuric or sulfonitric acid.
  • the document US3 803 832 A in the name of SHIMIZU describes a watch dial comprising a body formed from a flat aluminum plate and rivets forming rod elements made of aluminum material, and forming fasteners on a movement.
  • the head of each rod is shaped to fit into a recess formed on the rear surface of the body, and is integrally secured to the recess by means of ultrasonic welding.
  • One manufacturing method uses an ultrasonic welding machine to integrally join the head and the recess.
  • the document CH 332 878 A on behalf of RIHS describes a process for manufacturing a dial from a sheet by stamping, in particular for the formation of numerals in relief, and by cutting, following which the numerals in relief are rectified, the front plate is chemically polished of it applies rune anodic oxidation with at least one coloring product.
  • the document EP2400354 on behalf of The Swatch Group Research and Development Ltd describes a dial comprising a foot made of metallic material used to attach said dial to a timepiece.
  • the document CH343312 in the name of Beyeler and Cie describes a process for manufacturing a metal dial comprising studs on which dial feet are welded.
  • the invention proposes to attach feet in aluminum alloy or titanium, on a bare dial flange in aluminum or titanium alloy, to transform this bare dial into a dial assembly comprising feet rigidly secured to this flange , and exhibiting the same chemical behavior as it.
  • the invention relates to a timepiece dial according to claim 1.
  • the invention also relates to a one-piece dial assembly, according to claim 2.
  • the invention relates to a clock dial 1 whose material is a light alloy, comprising a flange 2 whose material is a first light alloy.
  • this dial 1 is flat, or substantially flat, or with a radius of curvature greater than 30 mm.
  • This flange 2 comprises, on a first side at least one display area 3 visible to a user, and on a second side opposite the first side on the front and called back at least one foot 4 for positioning and/or fixing the dial 1 in a clockwork 100.
  • This dial 1 is a dial whose components, in particular the feet 4, are removable.
  • the flange 2 comprises at least one receiving zone 5 complementary to an end zone 6 of at least one foot 4, which is a weldable foot 40, which is arranged to be welded or brazed with the flange 2 at the level of the interface between the reception zone 5 and the end zone 6.
  • the constituent material of such a weldable foot 40 is a second light alloy which is weldable or brazable with the first light alloy.
  • At least one receiving zone 5 envelopes a respective end zone 6 relating to the assembly of the same weldable foot 40.
  • At least one end zone 6 envelopes a respective reception zone 5 relating to the assembly of the same weldable foot 40.
  • At least one pair formed by an end zone 6 and a complementary reception zone 5 comprises, in a first assembled state that is neither welded nor brazed, an internal thread cooperating with a thread .
  • At least one reception zone 5 is part of a groove or a rib of revolution, in particular produced during machining of the flange 2 by turning, and the end zone 6 which is complementary to it is a part of a rib or groove of complementary revolution.
  • the first alloy is an aluminum alloy
  • the second alloy is a titanium alloy, or vice versa.
  • the aluminum alloys are preferably chosen from among the most easily weldable aluminum alloys. More particularly and without limitation, they are chosen from aluminum alloys without structural hardening, families 1000 (without addition element) and more particularly 1050 O in the annealed state, 3000 (with addition of manganese) and more particularly the 3003 O in the annealed state, 5000 (with addition of magnesium) which welds well and is well suited to anodizing, and more particularly the 5086 O in the annealed state or even the hardened and stabilized 5083 H111.
  • the first light alloy is an aluminum alloy and the second light alloy is a titanium alloy, such as TiO 2 , TiAl 6 V 4 called TA6V, or similar.
  • the second light alloy is an aluminum alloy
  • the first light alloy is a titanium alloy, such as TiO 2 , TiAl 6 V 4 called TA6V, or similar.
  • the first light alloy is an aluminum alloy
  • the second light alloy is a magnesium alloy which is welded well with aluminum, such as MgAl e Zn 3 says G-A6Z3, or MgAl 9 Zn says G-A9Z, or MgZn 5 Th 2 Zr, or MgZr.
  • MgAl e Zn 3 says G-A6Z3
  • MgAl 9 Zn says G-A9Z
  • MgZn 5 Th 2 Zr or MgZr.
  • the invention also relates to a one-piece dial assembly 10, the material of which is an alloy of aluminum and titanium, comprising a bare dial 1, and which results from the transformation of this dial 1 by at least one welding or brazing operation. which irreversibly secures the flange 2 and all or part of the feet 4.
  • the welded or brazed connection zone no longer contains any trace of the initial geometry of the end zones 6 and of the complementary reception zones 5 concerned by the operation of welding or brazing.
  • the end zone 6 and the reception zone 5 are joined in an unremovable manner at the level a welded or brazed connection between the flange 2 and the weldable foot 40 concerned.
  • each pair formed of an end zone 6 and a complementary reception zone 5 the end zone 6 and the reception zone 5 are joined in an unremovable manner at the level of a welded connection. or brazed between the flange 2 and the weldable foot 40 concerned.
  • the one-piece dial assembly 10 comprises an anodized surface layer, or a surface layer of chromic or sulfuric anodic oxidation, the corresponding surface treatment being carried out after the welding or brazing operation(s).
  • the invention also relates to a watch 1000 comprising such a dial assembly 10.
  • the invention also relates to a scientific instrument comprising such a dial assembly 10.
  • the invention also relates to a measuring device comprising such a dial assembly 10.
  • the dial is produced in one plane, or substantially plane, or with a radius of curvature greater than 30 mm,
  • each weldable foot 40 is assembled irreversibly by welding or brazing to the flange 2.
  • the dial 1 is made before welding or brazing with at least one receiving zone 5 which envelops, in the first assembled state not welded or brazed, a respective end zone 6 relating to the assembly of the same weldable foot 40 .
  • the dial 1 is produced before welding or brazing with at least one end zone 6 which envelops, in the first assembled state, not welded or brazed, a respective reception zone 5 relating to the assembly of the same weldable foot 40 .
  • the dial 1 is produced before welding or brazing with at least one pair, formed of an end zone 6 and a reception zone 5 complementary, which comprises, in the first assembled state not welded or brazed, an internal thread cooperating with a thread.
  • an anodizing operation or chromic or sulfuric anodic oxidation, is carried out on the surface layer of the dial assembly 10.
  • the first light alloy is chosen, which is an aluminum alloy, and the second light alloy, which is a titanium alloy, or vice versa.
  • first light alloy and a second light alloy which are two aluminum alloys is advantageous for the application of an anodizing process, but does not form part of the invention.
  • titanium alloy feet gives the same capabilities, with the advantage of great dimensional stability regardless of the number of treatments applied. This alternative is favorable to the application of different chemical conversion treatments on the same dial.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laser Beam Processing (AREA)
  • Arc Welding In General (AREA)
  • Adornments (AREA)
EP16205879.6A 2016-12-21 2016-12-21 Cadran d'horlogerie dont le matériau est un alliage léger Active EP3339970B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP16205879.6A EP3339970B1 (fr) 2016-12-21 2016-12-21 Cadran d'horlogerie dont le matériau est un alliage léger
CN201780079310.9A CN110178093B (zh) 2016-12-21 2017-12-13 轻合金材质的钟表表盘
PCT/EP2017/082534 WO2018114500A1 (fr) 2016-12-21 2017-12-13 Cadran d'horlogerie dont le materiau est un alliage leger
JP2019551746A JP6827126B2 (ja) 2016-12-21 2017-12-13 軽合金を素材とする計時器文字盤
US16/465,305 US20190391533A1 (en) 2016-12-21 2017-12-13 Timepiece dial whose material is a light alloy
EP17811613.3A EP3559758B1 (fr) 2016-12-21 2017-12-13 Cadran d'horlogerie dont le materiau est un alliage leger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16205879.6A EP3339970B1 (fr) 2016-12-21 2016-12-21 Cadran d'horlogerie dont le matériau est un alliage léger

Publications (2)

Publication Number Publication Date
EP3339970A1 EP3339970A1 (fr) 2018-06-27
EP3339970B1 true EP3339970B1 (fr) 2022-03-23

Family

ID=57629360

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16205879.6A Active EP3339970B1 (fr) 2016-12-21 2016-12-21 Cadran d'horlogerie dont le matériau est un alliage léger
EP17811613.3A Active EP3559758B1 (fr) 2016-12-21 2017-12-13 Cadran d'horlogerie dont le materiau est un alliage leger

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17811613.3A Active EP3559758B1 (fr) 2016-12-21 2017-12-13 Cadran d'horlogerie dont le materiau est un alliage leger

Country Status (5)

Country Link
US (1) US20190391533A1 (ja)
EP (2) EP3339970B1 (ja)
JP (1) JP6827126B2 (ja)
CN (1) CN110178093B (ja)
WO (1) WO2018114500A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210026306A1 (en) * 2019-07-25 2021-01-28 Casio Computer Co., Ltd. Dial, module, electronic device and timepiece
CN114730157A (zh) 2019-11-26 2022-07-08 劳力士有限公司 用于钟表表盘的连接环、钟表表盘板及钟表表盘组装方法
EP3835880B1 (fr) * 2019-12-10 2022-08-10 Comadur S.A. Cadran d'horlogerie avec pieds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH343312A (fr) * 1958-12-16 1959-12-15 Beyeler & Cie Procédé de fabrication d'un cadran de montre et cadran obtenu selon ce procédé
JPS5070216A (ja) * 1973-10-26 1975-06-11
EP2400354A1 (fr) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Pieds de cadran de pièce d'horlogerie

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH332878A (de) * 1956-03-29 1958-09-30 Rihs Fritz Verfahren zur Herstellung eines Zifferblattes für Uhren und dergleichen
JPS4881565A (ja) * 1972-02-01 1973-10-31
JPS4998274A (ja) * 1973-01-23 1974-09-17
CH1677973A4 (fr) * 1973-11-29 1976-12-15 Montavon Denis Procédé de fabrication d'un cadran de montre, cadran résultant de ce procédé
JPS5162065A (ja) * 1974-11-27 1976-05-29 Suwa Seikosha Kk Tokeiyomojiban
JPS5234265U (ja) * 1975-09-01 1977-03-10
CH604227B5 (ja) * 1975-11-24 1978-08-31 Charles Ruetschi
JPS52139466A (en) * 1976-05-18 1977-11-21 Citizen Watch Co Ltd Timepiece dial
JPS5417763U (ja) * 1978-07-11 1979-02-05
JPS569074U (ja) * 1979-06-29 1981-01-26
JPS63249082A (ja) * 1987-04-06 1988-10-17 Seiko Instr & Electronics Ltd 文字板固定構造
US5966344A (en) * 1994-03-31 1999-10-12 Citizen Watch Co., Ltd. Watch containing light transmitting metallic dial
JP5187712B2 (ja) * 2006-03-09 2013-04-24 大陽日酸株式会社 接合方法
JP2010223786A (ja) * 2009-03-24 2010-10-07 Citizen Holdings Co Ltd 金属筺体部材
JP5623808B2 (ja) * 2010-07-12 2014-11-12 シチズンホールディングス株式会社 時計用文字板
KR20160023003A (ko) * 2014-08-20 2016-03-03 현대모비스 주식회사 알루미늄 합금의 제조 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH343312A (fr) * 1958-12-16 1959-12-15 Beyeler & Cie Procédé de fabrication d'un cadran de montre et cadran obtenu selon ce procédé
JPS5070216A (ja) * 1973-10-26 1975-06-11
EP2400354A1 (fr) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Pieds de cadran de pièce d'horlogerie

Also Published As

Publication number Publication date
JP2020501169A (ja) 2020-01-16
EP3559758A1 (fr) 2019-10-30
US20190391533A1 (en) 2019-12-26
JP6827126B2 (ja) 2021-02-10
EP3339970A1 (fr) 2018-06-27
CN110178093B (zh) 2021-03-09
CN110178093A (zh) 2019-08-27
WO2018114500A1 (fr) 2018-06-28
EP3559758B1 (fr) 2023-08-09

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