EP3971657B1 - Procédé de séparation d'un fond et d'une carrure qui ensemble délimitent une boîte de montre d'une pièce d'horlogerie et piece d'horlogerie comprenant un fond presentant un degagement adapte pour recevoir un outil - Google Patents

Procédé de séparation d'un fond et d'une carrure qui ensemble délimitent une boîte de montre d'une pièce d'horlogerie et piece d'horlogerie comprenant un fond presentant un degagement adapte pour recevoir un outil

Info

Publication number
EP3971657B1
EP3971657B1 EP20196483.0A EP20196483A EP3971657B1 EP 3971657 B1 EP3971657 B1 EP 3971657B1 EP 20196483 A EP20196483 A EP 20196483A EP 3971657 B1 EP3971657 B1 EP 3971657B1
Authority
EP
European Patent Office
Prior art keywords
tool
case
timepiece
face
planar surface
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
EP20196483.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3971657A1 (fr
Inventor
Philippe Loetscher
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.)
Omega SA
Original Assignee
Omega 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 Omega SA filed Critical Omega SA
Priority to EP20196483.0A priority Critical patent/EP3971657B1/fr
Priority to TW110122889A priority patent/TWI783544B/zh
Priority to JP2021113255A priority patent/JP7196243B2/ja
Priority to US17/379,375 priority patent/US12253830B2/en
Priority to CN202111087033.0A priority patent/CN114265299B/zh
Publication of EP3971657A1 publication Critical patent/EP3971657A1/fr
Application granted granted Critical
Publication of EP3971657B1 publication Critical patent/EP3971657B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D1/00—Gripping, holding, or supporting devices
    • G04D1/10—Devices for opening or closing watch bottoms or covers
    • 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
    • G04B37/00—Cases

Definitions

  • the present invention relates to a method of separating a case back and a case middle which together delimit a watch case from a timepiece.
  • the invention also relates to a timepiece comprising a watch case delimited by a case middle and a back.
  • the back includes a cutout that allows a watchmaker to separate the back from the case middle.
  • case backs relevant to the present invention includes those mounted on the case by a snap-fit design with a gasket between the back and the case. To allow for opening, such case backs typically have a recess on their outer edge that allows the watchmaker to insert a tool between the back and the case to which it is attached.
  • the watchmaker inserts the tool into the recess and rotates the tool, so that, by leverage, the back can be gradually separated from the case; Either the watchmaker pushes the tool forward several times and gradually engages it between the case back and the case, using the tool like a wedge to separate the case back from the case.
  • Whichever technique is chosen The watchmaker carefully removes the case back from the case, and despite their best efforts, the case back often leaves a mark from the removal process.
  • the cutout in the case back designed to allow the tool to be inserted is such that, very often, the tool damages the outer edge of the case back, leaving a mark clearly visible to the naked eye once it is reattached.
  • the watch case comprises a case middle 2 into the base of which is fitted a case back 4 with an interposed gasket 6 between this case back 4 and this case middle 2.
  • the case back 4 has a recess 8 which creates, between this case back 4 and the case middle 2, a space 10 allowing the watchmaker to insert the end of a tool 12 with which the watchmaker will exert a lever arm on the case back 4 to separate this case back 4 from the case middle 2.
  • a plane or surface will be referred to as “horizontal” when that plane or surface extends in a plane parallel to the average plane P in which a clockwork mechanism 14, housed in the watch case 1, extends.
  • the term "average" plane P is used solely because the clockwork mechanism 14 has a thickness that cannot be reduced to a single plane.
  • the tool 12 has the appearance of a wedge, that is to say, a piece of acute shape formed by a first face 12a and a second face 12b which intersect at an angle ⁇ less than 90° and which are joined to each other by a rounded portion 12c.
  • the recess 8 As for the recess 8 provided in the base 4, it takes the form of a surface 8a inclined with respect to the horizontal when the base 4 is fixed to the frame 2. This inclined surface 8a extends away from the frame 2 towards its lower end and is extended by a rounded portion 8b ensuring the connection between the inclined surface 8a and a lower surface 16 of the base 4. As is apparent from the figure 1 , the rounded portion 8b forms an outer edge 18 of the bottom 4.
  • the watchmaker will not be able to return the watch to its owner in this condition and will have to either re-machine the case back 4 to remove the mark 19 or obtain a new case back to replace the damaged one. In both cases, this represents a loss of time and money for the watchmaker.
  • the present invention aims to provide a new arrangement for a watch case back which ensures that if the back is marked by the tool when the watchmaker separates the back from the case of the watch, this mark will not be perceptible to the owner of the watch.
  • the present invention relates to a method of separating a case back and a case as defined by claim 1 of the patent.
  • the present description also describes a tool intended to be used by a watchmaker to separate a case back from a case which together delimit a watch case from a timepiece in which a timepiece is housed, this tool having the appearance of a wedge, that is to say a piece of acute shape formed of a first face and a second face which intersect at an angle ⁇ less than 90° and which are joined to each other by a rounded portion, the first face of the tool being oriented so that it extends parallel to a mean plane in which the timepiece is located when the watchmaker engages this tool between the case back and the case in order to separate this case back from this case, the rounded portion being joined to the second face by a curved portion whose curvature is directed towards the interior of a surface delimited by the first and second faces.
  • the present invention also relates to a timepiece as defined by claim 2 of the patent.
  • the general inventive idea presented here consists of providing watchmakers with a tool enabling them to separate the case back from a watch case without leaving any visible marks on the case back after the case back has been reattached to the case.
  • the present invention also relates to a watch case back that has a recess whose profile is arranged such that, even if, despite all the care taken by the watchmaker when separating the case back from the case, the case back is marked by this disassembly operation, the mark left by the tool on the case back will not be visible to the watch owner once the case back has been reattached to the case.
  • a tool 20 has the appearance of a wedge, that is to say, a piece of acute shape formed of a first face 20a and a second face 20b which intersect at an angle ⁇ less than 90° and which are joined to each other by a rounded portion 20c. More precisely, the rounded portion 20c is joined to the second face 20b of the tool 20 by a curved portion 20d whose curvature is directed towards the interior of a surface 20e of the tool 20 delimited by the first and second faces 20a, 20b.
  • the tool 20 is intended to be used by a watchmaker to separate a case back 22 from a case middle 24 which together delimit a watch case 26 from a timepiece 28 inside which is housed a watch movement 30. More precisely, the first face 20a of the tool 20 is arranged so that, when the watchmaker engages the tool 20 between the case back 22 and the case middle 24 in order to separate this case back 22 from this case middle 24, this first face 20a extends parallel to a mean plane P in which the watch movement 30 is located.
  • the case back 22 of the timepiece 28 is externally delimited by a perimeter in at least one place, within which a clearance 32 is provided.
  • This clearance creates a space 34 between the case back 22 and the case 24, allowing the watchmaker to insert the end of the tool 20. The watchmaker will then use this tool to apply leverage to the case back 22 to separate it from the case 24.
  • the clearance 32 comprises a first flat surface 32a parallel to the midplane P in which the timepiece movement 30 extends.
  • This first flat surface 32a is extended, via a first rounded portion 32c, by a second inclined flat surface 32b, which forms an acute angle ⁇ with the midplane P when the case back 22 is fixed to the case 24.
  • This second inclined flat surface 32b moves away from the 24th shoulder towards the bottom of the latter and is extended by a rounded portion 32d, for example, which ensures the connection between the second inclined flat surface 32b and a lower surface 36 of the bottom 22.
  • the angle ⁇ between the first face 20a and the second face 20b of the tool 20 is less than the acute angle ⁇ that the second inclined surface 32b forms with the average plane P , which allows the tool 20 to bear with its curved portion 20d in an area 38 of the first rounded portion 32c of the recess 32 which will not be perceptible to the owner of the timepiece 28 once the case back 22 is reattached to the case 24. Therefore, even if the area 38 is marked by the operation of separating the case back 22 and the case 24, this mark will no longer be visible when the case back 22 is reattached.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Adornments (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
EP20196483.0A 2020-09-16 2020-09-16 Procédé de séparation d'un fond et d'une carrure qui ensemble délimitent une boîte de montre d'une pièce d'horlogerie et piece d'horlogerie comprenant un fond presentant un degagement adapte pour recevoir un outil Active EP3971657B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20196483.0A EP3971657B1 (fr) 2020-09-16 2020-09-16 Procédé de séparation d'un fond et d'une carrure qui ensemble délimitent une boîte de montre d'une pièce d'horlogerie et piece d'horlogerie comprenant un fond presentant un degagement adapte pour recevoir un outil
TW110122889A TWI783544B (zh) 2020-09-16 2021-06-23 用於從時計的中間部分開背部的工具，及具有適合接收該工具的凹槽的背部，以及配備此背部的時計
JP2021113255A JP7196243B2 (ja) 2020-09-16 2021-07-08 計時器のミドル部から裏部を分離するための道具、このような道具を受ける溝が形成される裏部、及びこのような裏部を備える計時器
US17/379,375 US12253830B2 (en) 2020-09-16 2021-07-19 Tool for separating a back from a middle of a timepiece, as well as a back having a slot adapted to receive the tool, and timepiece equipped with such a back
CN202111087033.0A CN114265299B (zh) 2020-09-16 2021-09-16 将底盖从时计表壳中心分离的工具、具有适于接收工具的缝的底盖、配备有这种底盖的时计

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20196483.0A EP3971657B1 (fr) 2020-09-16 2020-09-16 Procédé de séparation d'un fond et d'une carrure qui ensemble délimitent une boîte de montre d'une pièce d'horlogerie et piece d'horlogerie comprenant un fond presentant un degagement adapte pour recevoir un outil

Publications (2)

Publication Number Publication Date
EP3971657A1 EP3971657A1 (fr) 2022-03-23
EP3971657B1 true EP3971657B1 (fr) 2025-12-24

Family

ID=72560337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20196483.0A Active EP3971657B1 (fr) 2020-09-16 2020-09-16 Procédé de séparation d'un fond et d'une carrure qui ensemble délimitent une boîte de montre d'une pièce d'horlogerie et piece d'horlogerie comprenant un fond presentant un degagement adapte pour recevoir un outil

Country Status (5)

Country Link
US (1) US12253830B2 (enExample)
EP (1) EP3971657B1 (enExample)
JP (1) JP7196243B2 (enExample)
CN (1) CN114265299B (enExample)
TW (1) TWI783544B (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH26064A (de) * 1902-02-06 1903-07-31 Ammann Seiler S H Soehne Entlastungsvorrichtung für Eisenbahnbrückenwagen mit oder ohne Geleiseunterbrechung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US251183A (en) * 1881-12-20 Watch-maker s combination-tool
CH416471A (fr) * 1964-01-10 1966-03-15 Ballmer Jean Outil pour séparer le fond et la carrure d'une boîte de montre
CH430597A (fr) * 1964-09-24 1966-10-31 Ballmer Jean Outil pour ouvrir les boîtes de montre à cornes et barrettes ou à anses
US4121485A (en) * 1976-06-07 1978-10-24 Braun Carl G Tool for removing a watch case back
US4135416A (en) * 1977-10-18 1979-01-23 Jean Roux Tool for opening and closing wrist watches
JPS5515058A (en) * 1978-07-19 1980-02-01 Seiko Epson Corp Mounting and removing method for reverse cover of watch case
JPS58151882U (ja) * 1982-04-06 1983-10-12 セイコーエプソン株式会社 腕時計側用裏ぶた
JP2597925Y2 (ja) * 1993-04-02 1999-07-26 シチズン時計株式会社 レジスターリング外し治具
US5388082A (en) * 1994-03-31 1995-02-07 Kabushiki Kaisha Hattori Seiko Watch case back opener
DE60239739D1 (de) * 2001-05-17 2011-05-26 Citizen Holdings Co Ltd Werkzeug für eine armbanduhr
JP3596548B2 (ja) 2002-03-27 2004-12-02 セイコーエプソン株式会社 電子時計および電子機器
TWM285300U (en) * 2005-06-30 2006-01-11 Jian-Ren Lin Improvement of assembling floor-cushion structure
US7950627B2 (en) 2007-11-20 2011-05-31 Nail Jack Tools, Inc. Fastener extraction tool
EP2977835B1 (fr) * 2014-07-21 2017-06-28 The Swatch Group Research and Development Ltd. Soudure par électro-formage de coque d'horlogerie électro-formée
JP5967156B2 (ja) 2014-08-29 2016-08-10 カシオ計算機株式会社 時計
US11036188B2 (en) * 2018-05-29 2021-06-15 Timex Group Usa, Inc. Wearable device with RF transmitter
JP7456336B2 (ja) * 2020-09-14 2024-03-27 セイコーエプソン株式会社 時計

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH26064A (de) * 1902-02-06 1903-07-31 Ammann Seiler S H Soehne Entlastungsvorrichtung für Eisenbahnbrückenwagen mit oder ohne Geleiseunterbrechung

Also Published As

Publication number Publication date
JP7196243B2 (ja) 2022-12-26
TW202213002A (zh) 2022-04-01
EP3971657A1 (fr) 2022-03-23
CN114265299B (zh) 2025-01-21
US20220083010A1 (en) 2022-03-17
TWI783544B (zh) 2022-11-11
JP2022049652A (ja) 2022-03-29
US12253830B2 (en) 2025-03-18
CN114265299A (zh) 2022-04-01

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