EP3502790A1 - Uhr, die eine befestigungsvorrichtung für ein zifferblatt umfasst - Google Patents

Uhr, die eine befestigungsvorrichtung für ein zifferblatt umfasst Download PDF

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Publication number
EP3502790A1
EP3502790A1 EP17209869.1A EP17209869A EP3502790A1 EP 3502790 A1 EP3502790 A1 EP 3502790A1 EP 17209869 A EP17209869 A EP 17209869A EP 3502790 A1 EP3502790 A1 EP 3502790A1
Authority
EP
European Patent Office
Prior art keywords
dial
support
central opening
timepiece according
holding tube
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.)
Withdrawn
Application number
EP17209869.1A
Other languages
English (en)
French (fr)
Inventor
Raphaël Balmer
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP17209869.1A priority Critical patent/EP3502790A1/de
Priority to US16/767,848 priority patent/US11687036B2/en
Priority to KR1020207017722A priority patent/KR102392230B1/ko
Priority to PCT/EP2018/084210 priority patent/WO2019121116A1/fr
Priority to JP2020552116A priority patent/JP7137630B2/ja
Priority to CN201880080516.8A priority patent/CN111465905B/zh
Priority to EP18815697.0A priority patent/EP3729204B1/de
Publication of EP3502790A1 publication Critical patent/EP3502790A1/de
Withdrawn legal-status Critical Current

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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
    • G04B19/14—Fastening the dials to the clock or watch plates

Definitions

  • the present invention relates to the field of watchmaking and more particularly to a timepiece comprising a device for fixing a dial of conventional type or type comprising a solar cell.
  • a dial of a timepiece comprises on the side of the lower face, that is to say on the movement side, metal feet arranged to be driven partly into machined holes in the movement plate. .
  • These metal feet serve in particular to keep in place the dial with respect to the movement of the watch during the assembly of the latter.
  • Fixing the dial in the movement plate according to the aforementioned method has the disadvantage of involving relatively complex machining operations, the dial to be drilled several times accurately before mounting the metal feet.
  • the use of such dials in skeleton type watches is also unattractive.
  • an object of the invention is to propose a timepiece comprising a device for fixing the dial which is simple to implement and which ensures a good hold of the dial while guaranteeing mechanical strength, particularly in the event of shocks. along the axis of the needles.
  • a timepiece comprising a motor module, a dial having a central opening, a clock of hours crossing the central opening of the dial and rotated by the engine module and a device for fixing the dial.
  • the fastening device comprises a holding tube arranged around the hours barrel and secured to the engine module.
  • the holding tube is configured to bear against the dial or against a dial support on which is fixed the dial.
  • the holding tube comprises a retaining member bearing against the dial or against the dial support.
  • the retaining member is configured to be in abutment or to exert an axial stress distributed either on an annular zone of the dial which is adjacent and concentric with the central opening of the dial, or on an annular zone of the dial support .
  • the part of the dial adjacent to the central opening of the dial defines an annular zone, preferably recessed with respect to the surface of the dial, so that a surface of the upper part of the dial keeping it at the same level as the dial.
  • the holding tube has a first cylindrical portion having a first diameter and a second cylindrical portion having a second diameter smaller than the first diameter.
  • the retaining member is a washer arranged on the circumference of the second cylindrical portion and bearing against the annular zone of the dial or against the dial support so as to exert an axial force on the dial or the dial support.
  • the retaining member is an elastic ring, preferably of circlip type, arranged inside a groove formed on at least a portion of the outer circumference of the holding tube so that the elastic ring bears against the annular zone of the dial or against the dial support.
  • the holding tube comprises, on the one hand, a first tube secured to the motor module and having a threaded portion on its inner circumference, and secondly, a second tube in the form of a nut. screwed into the threaded portion of the first tube.
  • the nut has a radial extension to form a circular bearing surface.
  • the retainer is in the form of a seal, O-ring type preference, arranged against the circular bearing surface of the nut and the annular area of the dial or the support dial support so as to exert an axial force on the dial or the dial support.
  • the nut is embedded in the central opening of the dial.
  • the nut has a portion raised relative to the dial and which extends radially to cover the central opening of the dial.
  • the timepiece further comprises a movement support and a circuit support arranged between the dial support and the motor module.
  • the stack of each support forms a rigid base preventing the deformation of the dial in the event of axial impact.
  • each support has a central opening to form a housing within which is adjusted, at least in part, the holding tube.
  • the dial comprises or consists of at least one solar cell.
  • the device for fixing a dial according to the invention described hereinafter can be implemented in mechanical or quartz watches comprising a dial of conventional / conventional type, that is to say a dial comprising for example indexes distributed at regular intervals around the circumference of the dial, numbers to represent the hours, for example in the form of sconces fixed on the dial and, depending on the caliber, one or more wickets to indicate for example the date or other information.
  • the device for fixing a dial according to the invention can also be implemented in watches comprising a dial of non-conventional type.
  • the fixing device according to the invention is for example particularly well suited for fixing a dial comprising or consisting of a solar cell for supplying for example a battery and / or an electronic module of a so-called smart watch.
  • the timepiece comprises in particular a motor module 10, a dial 12 provided with a central opening 13, a floor 14a and a 14 hours clock through the central opening 13 of the dial 12 and rotated by the engine module 10.
  • the dial 12 is fixed on a dial support 17 for example by means of a double-sided adhesive 30a.
  • the shape of the dial support 17 is substantially identical to the shape of the dial 12.
  • the dial support 17 is mounted on a motion support 26, which is fixed on a circuit support, preferably a printed circuit support 28, by example by means of a double-sided adhesive 30b.
  • the stack of different supports 17, 26, 28 form a rigid base on which rests the dial 12, which has the advantage of avoiding a deformation of the dial 12 in the event of axial impact.
  • This rigid base is particularly well suited for a dial 12 formed in particular of a solar cell to prevent possible rupture of the glass substrate of the cell in case of significant axial impact.
  • the timepiece comprises a device for fastening the dial 12 comprising a holding tube 15 arranged around the hour barrel 14b and integral with the engine module 10.
  • the holding tube 15 has a first cylindrical portion 15a having a first diameter D1 and a second cylindrical portion 15b having a second diameter D2 smaller than the first diameter D1.
  • the first cylindrical portion 15a is housed in a tubular portion formed by the stacking of the central openings of the dial support 17, the movement support 26 and the support of the printed circuit 28.
  • a retaining washer-type retaining member 20a is arranged on the circumference of the second cylindrical portion 15b and extends radially so that the periphery of the washer 20a bears against the dial support 17 to exert an axial force on the dial support 17.
  • One end of the first cylindrical portion 15a has a radial extension 18, for example of annular shape, which is fixed to a bridge 10a of the motor module 10.
  • a retaining member of the type of an elastic ring 20b is arranged inside a groove 22 made on the outer circumference of the holding tube 15 so that the The elastic ring 20b bears against the dial support 17.
  • the elastic ring may for example be of the circlip type in order to facilitate the dismounting of the fixing device.
  • the holding tube 15 is housed in the tubular portion formed by the stack of the various supports 17, 26, 28 in order to produce this rigid base adapted for a dial 12 comprising or consisting of a solar cell.
  • One end of the holding tube 15 has a radial extension 18, for example of annular shape, which is fixed to a bridge 10a of the motor module 10.
  • the holding tube 15 comprises a first tube 16a comprising, on the one hand, a radial extension fixed to a bridge 10a of the motor module 10, and on the other hand, a threaded portion on its inner circumference.
  • the first tube 16a is housed in the tubular portion formed by the stack of different supports 17, 26, 28 forming this rigid base.
  • the holding tube 15 further comprises a second tube 16b in the form of a nut screwed into the threaded portion of the first tube 16a.
  • the nut 16b has at one end a radial extension 24 to form a circular bearing surface 24a.
  • a seal type retainer 20c for example of the O-ring type, is arranged against the circular bearing surface 24a of the nut 16b and the dial support 17 so as to exert an axial force on the dial support. 17.
  • the nut 16b is embedded in the central opening 13 of the dial 12.
  • the diameter of the radial extension 24 is preferably substantially identical to the diameter of the central opening 13 of the dial in order to have an advantageous aesthetic appearance.
  • the fixing device is devoid of a retaining member 20a to 20c of the type for example seal 20c which is arranged against the circular bearing surface 24a of the nut 16b and the dial support 17.
  • the radial extension 24 forming a circular bearing surface 24a defined at the end of said nut 16b is then able to directly exert an axial force on the dial support 17.
  • the device for fixing the dial comprises a holding tube of similar construction to the third embodiment with the difference that the nut 16b has an elevated portion 32 relative to the dial. 12 which extends radially to cover the central opening 13 of the dial 12.
  • This embodiment is particularly suitable for a dial comprising or consisting of a solar cell since the raised portion 32 has the advantage of concealing the defects of cutting of the solar cell.
  • the retaining washer 20a according to the figure 1 , circlip 20b according to the figure 2 as well as the second tube 16b in the form of a nut screwed into the threaded portion of the first tube 16a according to the Figures 3 and 4 all have the advantage of preventing the needles being dislodged during a major axial impact.
  • the holding tube 15 may be adapted to bear or exerted an axial stress not on the dial support 17 but directly on the dial 12 himself.
  • the dial may for example comprise a portion of the dial adjacent to the central opening 13 of the dial against which the retaining member such as the retaining washer 20a, the circlip 20b or the seal 20c according to FIG. embodiment chosen from those described above.
  • the dial portion adjacent to the central aperture 13 may define an annular area set back from most of the surface of the dial so that a surface of the upper portion of the holding tube is at the same level. than the dial.
  • the fixing device according to the invention has the advantage of making it possible to produce dials in different materials which are not compatible for the manufacture of dials with feet. These dials can be obtained in particular by injection molding processes of plastic, metal or glass.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP17209869.1A 2017-12-21 2017-12-21 Uhr, die eine befestigungsvorrichtung für ein zifferblatt umfasst Withdrawn EP3502790A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP17209869.1A EP3502790A1 (de) 2017-12-21 2017-12-21 Uhr, die eine befestigungsvorrichtung für ein zifferblatt umfasst
US16/767,848 US11687036B2 (en) 2017-12-21 2018-12-10 Timepiece comprising a dial attachment device
KR1020207017722A KR102392230B1 (ko) 2017-12-21 2018-12-10 다이얼 부착 디바이스를 포함하는 시계
PCT/EP2018/084210 WO2019121116A1 (fr) 2017-12-21 2018-12-10 Piece d'horlogerie comportant un dispositif de fixation d'un cadran
JP2020552116A JP7137630B2 (ja) 2017-12-21 2018-12-10 文字盤取付装置を備えた計時器
CN201880080516.8A CN111465905B (zh) 2017-12-21 2018-12-10 包括表盘附接装置的钟表
EP18815697.0A EP3729204B1 (de) 2017-12-21 2018-12-10 Watchpiece-teil mit einer vorrichtung zum befestigen eines zifferblatt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17209869.1A EP3502790A1 (de) 2017-12-21 2017-12-21 Uhr, die eine befestigungsvorrichtung für ein zifferblatt umfasst

Publications (1)

Publication Number Publication Date
EP3502790A1 true EP3502790A1 (de) 2019-06-26

Family

ID=60781995

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17209869.1A Withdrawn EP3502790A1 (de) 2017-12-21 2017-12-21 Uhr, die eine befestigungsvorrichtung für ein zifferblatt umfasst
EP18815697.0A Active EP3729204B1 (de) 2017-12-21 2018-12-10 Watchpiece-teil mit einer vorrichtung zum befestigen eines zifferblatt

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18815697.0A Active EP3729204B1 (de) 2017-12-21 2018-12-10 Watchpiece-teil mit einer vorrichtung zum befestigen eines zifferblatt

Country Status (6)

Country Link
US (1) US11687036B2 (de)
EP (2) EP3502790A1 (de)
JP (1) JP7137630B2 (de)
KR (1) KR102392230B1 (de)
CN (1) CN111465905B (de)
WO (1) WO2019121116A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH315646A (fr) * 1953-01-16 1956-08-31 Aubert Paul Lucien Pièce d'horlogerie
FR1491555A (fr) * 1966-07-01 1967-08-11 Cie Ind De Metrologie Trophy Perfectionnement à la fixation d'un cadran sur un mouvement d'horlogerie par écrou central
JP2013096818A (ja) * 2011-10-31 2013-05-20 Seiko Instruments Inc 電子時計

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129174U (ja) * 1983-01-20 1983-09-01 セイコーエプソン株式会社 アナグロ時計の針部構造
CH649433GA3 (de) * 1983-08-30 1985-05-31
JPS60181676A (ja) * 1984-02-29 1985-09-17 Citizen Watch Co Ltd 時計用表示板の固定方法
JPS60154884U (ja) * 1984-03-26 1985-10-15 リズム時計工業株式会社 時計の指針取付構造
JPH0248874B2 (ja) * 1985-07-17 1990-10-26 Seikosha Kk Tokeikiko
JPS62169075A (ja) * 1986-01-21 1987-07-25 Seikosha Co Ltd 時計
DE69221662T2 (de) * 1991-05-10 1998-04-02 Omron Tateisi Electronics Co Zeitmesser mit Zifferblatt
JP2540995Y2 (ja) * 1993-12-28 1997-07-09 リズム時計工業株式会社 目覚時計の目安表示装置
CN1120302A (zh) * 1994-10-05 1996-04-10 荣汉斯·乌伦股份公司 具有内装接收机的时钟
JP3051910B2 (ja) * 1995-05-16 2000-06-12 セイコーインスツルメンツ株式会社 Ｅｌパネル付電子機器
US5764599A (en) * 1996-08-12 1998-06-09 Timex Corporation Electroluminescent lamp and dial for a timepiece
US8535233B2 (en) * 2000-09-25 2013-09-17 Welch Allyn, Inc. Blood pressure measuring apparatus
US6687192B2 (en) * 2001-04-03 2004-02-03 Eta Sa Fabriques D'ebauches Timepiece movement
EP1434114B1 (de) * 2002-12-23 2010-04-07 Asulab S.A. Uhrengehäuse mit Boden oder Deckel mit Bajonettverschluss der manuell geöffnet werden kann
CH705087B1 (fr) * 2011-06-06 2017-02-28 Hublot Sa Genève Pièce d'horlogerie.
JP2013068430A (ja) * 2011-09-20 2013-04-18 Seiko Epson Corp 文字板組立体および時計
CN105143999B (zh) * 2013-04-24 2017-12-12 Eta瑞士钟表制造股份有限公司 用于将机芯装配到表壳的方法和装置
CN203535385U (zh) * 2013-07-12 2014-04-09 卡西欧计算机株式会社 钟表用表盘以及钟表
CN203773237U (zh) * 2013-08-29 2014-08-13 Eta瑞士钟表制造股份有限公司 钟表机芯及包括该钟表机芯的模块化的钟表组件和钟表件
EP3123252B1 (de) * 2014-03-25 2018-08-22 ETA SA Manufacture Horlogère Suisse Mit einem zifferblatt ausgestattete uhr, und entsprechende befestigungsmethode
JP2016109533A (ja) * 2014-12-05 2016-06-20 セイコーエプソン株式会社 電子時計

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH315646A (fr) * 1953-01-16 1956-08-31 Aubert Paul Lucien Pièce d'horlogerie
FR1491555A (fr) * 1966-07-01 1967-08-11 Cie Ind De Metrologie Trophy Perfectionnement à la fixation d'un cadran sur un mouvement d'horlogerie par écrou central
JP2013096818A (ja) * 2011-10-31 2013-05-20 Seiko Instruments Inc 電子時計

Also Published As

Publication number Publication date
US20200292994A1 (en) 2020-09-17
KR102392230B1 (ko) 2022-04-28
KR20200089720A (ko) 2020-07-27
CN111465905B (zh) 2022-09-02
WO2019121116A1 (fr) 2019-06-27
CN111465905A (zh) 2020-07-28
EP3729204B1 (de) 2023-01-25
US11687036B2 (en) 2023-06-27
EP3729204A1 (de) 2020-10-28
JP7137630B2 (ja) 2022-09-14
JP2021507267A (ja) 2021-02-22

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