EP3680729B1 - Fond orientable pour une piece d'horlogerie - Google Patents

Fond orientable pour une piece d'horlogerie Download PDF

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Publication number
EP3680729B1
EP3680729B1 EP19151038.7A EP19151038A EP3680729B1 EP 3680729 B1 EP3680729 B1 EP 3680729B1 EP 19151038 A EP19151038 A EP 19151038A EP 3680729 B1 EP3680729 B1 EP 3680729B1
Authority
EP
European Patent Office
Prior art keywords
watch case
annular
case
braking means
watch
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
EP19151038.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3680729A1 (fr
Inventor
Yann Haering
Sébastien JOBEZ
Nicolas Debaud
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.)
Blancpain SA
Original Assignee
Blancpain 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 Blancpain SA filed Critical Blancpain SA
Priority to EP19151038.7A priority Critical patent/EP3680729B1/fr
Priority to JP2019233841A priority patent/JP6868088B2/ja
Priority to US16/735,948 priority patent/US11698607B2/en
Priority to CN202010017655.5A priority patent/CN111427251B/zh
Publication of EP3680729A1 publication Critical patent/EP3680729A1/fr
Application granted granted Critical
Publication of EP3680729B1 publication Critical patent/EP3680729B1/fr
Active legal-status Critical Current
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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0084—Pictures or inscriptions on the case or parts thereof, attaching complete pictures
    • 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
    • G04B37/0008—Cases for pocket watches and wrist watches
    • 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
    • G04B37/12—Cases for special purposes, e.g. watch combined with ring, watch combined with button
    • 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
    • G04B19/28—Adjustable guide marks or pointers for indicating determined points of time
    • G04B19/283—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel
    • G04B19/286—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel with locking means to prevent undesired rotations in both directions
    • 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
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0084—Pictures or inscriptions on the case or parts thereof, attaching complete pictures
    • G04B45/0092—Changeable parts
    • 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
    • G04B37/0075—Cases with means to enhance sound transmission

Definitions

  • the present invention relates to bases for timepieces and more particularly to such bases comprising a pattern or a logo on their external face and in which said pattern or logo can be oriented as desired.
  • the documents EP 1 890 203 A1 And US 5,923,622 A describe a base for a watch case, the base comprising a first element arranged to be screwed onto the watch case, and a second element comprising an end face bearing a pattern, the second element being mounted movable in rotation around a axis passing through the center of the box, where the second element comprises braking means arranged to maintain it relative to the first element in different angular positions around the axis of rotation, the braking means being arranged between the first and second elements.
  • the present invention which is defined by appended claim 1, aims to remedy this drawback as well as others by proposing a system allowing, after screwing a back onto the middle of a watch case , to adjust in a simple and effective manner the orientation of the back in relation to the watch, so as to guarantee a suitable arrangement of the inscriptions and other decorative motifs which have been transferred to the face of the back of the watch directed towards the wrist of the watch. wearer of this watch.
  • the present invention relates to a base for a watch case, the base comprising a first element arranged to be screwed onto the watch case, and a second element comprising an end face bearing a pattern, the second element being mounted movable in rotation around an axis passing through the center of the box, characterized in that the second element comprises braking means arranged to maintain it relative to the first element in different angular positions around the axis of rotation, the braking means being arranged between the first and second elements.
  • the present invention provides a device for fixing a watch case back which allows this base to be completely screwed onto the middle of the watch so as to ensure the watertightness of the latter and to avoid as much as possible any risk of losing said back, then, although the back is screwed tightly, to pivot a movable element of this back in relation to the middle part to compensate for any possible misalignment of the inscriptions or patterns applied to the visible face of said back .
  • the invention also relates to a timepiece comprising a base conforming to the invention.
  • FIG. 1 illustrates a back 1 for a watch case 50 intended to be screwed by a screw thread onto a middle part 51, the latter having a complementary thread machined at its base and on its inner periphery.
  • the back 1 comprises a first element 10 arranged to be screwed onto the watch case 50, and a second element 20 comprising an end face 21 bearing a pattern such as a logo or a brand, the second element 20 being mounted movable in rotation around an axis passing through the center of the watch case.
  • the first element 10 is intended to be screwed onto the watch case 50 and has for this purpose, on its rear face, that is to say the face facing the inside of the case, an annular shoulder 11 comprising a thread 110 on its outer perimeter.
  • the shoulder 11 is screwed to the base of the watch case 50 which includes a complementary thread provided for this purpose.
  • the first element 10 also comprises, on its front face, that is to say the face facing the outside of the box, a base 12 with an inclined wall 13 towards the outside of the box so that said base 12 has a cross-section of substantially trapezoidal shape.
  • the second element 20 comprises a cavity 22 with an inclined wall 23 complementary to the base 12 to be able to carry out clipping (clipping) or interlocking by force, and thus assemble the two elements 10, 20.
  • clipping clipping
  • the edges of the base 12 and the cavity 22 are chamfered.
  • the base 12 of the first element 10 comprises hollowed-out portions 13' and an annular groove 13" formed behind the wall 13 so as to facilitate the deformation of the wall during the forceful nesting of the second element 20 onto the first element.
  • the diameter of the base 12 and the cavity 22 are less than the diameters of the first and second elements 10, 20.
  • the second element 20 is rotatably mounted on the first element 10 around the axis of rotation C passing through the center of the box 100, the interlocking or clipping providing sufficient clearance to rotate the second element 20.
  • the first element 10 successively comprises a first annular groove 14 formed in the base 12, an annular groove 15 formed near the periphery of the first element and a second annular groove 16 also formed in the immediate vicinity of the periphery of the first element 10.
  • the second element 20 has an orifice 24 arranged to receive a pin 25, the pin 25 cooperating with the annular groove 15 formed in the first element 10 so as to guide the second element 20 during its pivoting.
  • the annular groove 15 is not continuous and has two ends 150 and 151 close to each other each defining a stop.
  • braking means are provided which act preferably by friction and which according to the invention are arranged to maintain different orientations angular angles of the second element 20 relative to the first element 10, and therefore relative to the middle part.
  • the second element bearing the pattern M can be easily moved angularly into a desired position against the friction force generated by the braking means and maintained in the desired position.
  • the second element 20 is thus clamped axially between its rear face and the front face of the first element 10.
  • the respective dimensions of the second element 20, in particular its thickness, and those of the first element 10 are chosen so that the edge of the second element 20 is flush with the front face of the first element 10 to thus form a continuous surface.
  • the braking means comprise at least one elastic annular element 30 which in particular has elasticity in a direction parallel to the axis of rotation C.
  • the annular element can be produced by a seal made of compressible material natural or synthetic.
  • the annular element 30 is disposed between the first and the second element.
  • the elastic annular element(s) 30 are arranged in the first and second annular grooves 14 and 16 which are formed in the front face of the first element.
  • a person skilled in the art could, without particular difficulty, reverse this assembly and place the elastic annular elements 30 on the rear face of the second element 20 by forming the grooves 14 and 16 there beforehand.
  • the annular grooves 14 and 16 are arranged on either side of the annular groove 15, which allows better distribution of the friction forces generated by the elastic annular elements 30.
  • the second annular groove 16 has two levels: a first level forming the bottom of the groove arranged to receive an elastic annular element 30, and a second level forming the opening of the groove arranged to receive the edge of the second element 20.
  • the second level has dimensions greater than the first level of such that the edge of the second element 20 can move in translation in the direction of the axis C.
  • the desired braking force can be controlled by adapting the compression rate of the annular element during manufacturing.
  • the manufacturer exerts pressure on the second element 20 towards the watch case so as to compress the elastic annular elements 30. Then, while maintaining the pressure on the second element, the manufacturer rotates the second element relative to the first element 10 so as to orient the back in a desired angular position so that the pattern M is, for example, aligned with the axis 6H-12H of the watch.
  • the second element 20 comprises a notch 26 capable of receiving a tool to exert a lever force and thus dislodge the second element.
  • the timepiece 100 for example of the wristwatch type, which is provided with the back 1 according to the invention is partially shown on the figure 1 .
  • This timepiece includes in particular a middle part 51 surmounted by a bezel 52 which can be screwed onto the middle part 51 and which serves to hold a glass 53.
  • the assembly formed by the bezel 52 and the glass 53 is made watertight by interposition of a joint 54.
  • the middle part 51 also has a hole for the passage of a rod 55 on which a crown 56 is fixed.
  • the wristwatch is of the type with an analog display of the hour and for this purpose includes a set of hands 58 for hours and minutes (only one hand has been shown in the drawing) moving above a dial 57. It goes without saying that the present invention could just as easily be applied to a watch with a digital time display comprising, for example, a liquid crystal cell .
  • an O-ring 31 is conventionally inserted into an annular groove 59 made at the base of the middle part 51 to guarantee the seal between the first element 10 of the bottom 1 and said middle part 51.
  • the first and second elements can be made of metals, of a metal alloy, of ceramic, of a composite material or even of a plastic material.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
EP19151038.7A 2019-01-09 2019-01-09 Fond orientable pour une piece d'horlogerie Active EP3680729B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19151038.7A EP3680729B1 (fr) 2019-01-09 2019-01-09 Fond orientable pour une piece d'horlogerie
JP2019233841A JP6868088B2 (ja) 2019-01-09 2019-12-25 計時器のための向きを調整可能な裏蓋
US16/735,948 US11698607B2 (en) 2019-01-09 2020-01-07 Orientable back for a timepiece
CN202010017655.5A CN111427251B (zh) 2019-01-09 2020-01-08 钟表的可定向后盖

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19151038.7A EP3680729B1 (fr) 2019-01-09 2019-01-09 Fond orientable pour une piece d'horlogerie

Publications (2)

Publication Number Publication Date
EP3680729A1 EP3680729A1 (fr) 2020-07-15
EP3680729B1 true EP3680729B1 (fr) 2024-04-24

Family

ID=65011927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19151038.7A Active EP3680729B1 (fr) 2019-01-09 2019-01-09 Fond orientable pour une piece d'horlogerie

Country Status (4)

Country Link
US (1) US11698607B2 (ja)
EP (1) EP3680729B1 (ja)
JP (1) JP6868088B2 (ja)
CN (1) CN111427251B (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3958067A1 (fr) * 2020-08-17 2022-02-23 The Swatch Group Research and Development Ltd Dispositif de fixation d'un fond sur une carrure pour piece d'horlogerie
EP4194967A1 (fr) * 2021-12-07 2023-06-14 The Swatch Group Research and Development Ltd Dispositif de fixation d'un fond sur une carrure pour piece d'horlogerie

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH243389A (fr) * 1945-05-12 1946-07-15 Luthy Edouard Boîte de montre étanche.
JPH11118954A (ja) 1997-10-08 1999-04-30 Seiko Epson Corp 部材取付装置、部材取付装置を有する時計、及び部材取付装置を有する電子機器
JP3243443B2 (ja) * 1998-02-09 2002-01-07 理得國際企業有限公司 腕時計底蓋の結合構造
ATE389199T1 (de) * 2001-07-18 2008-03-15 Swatch Group Man Serv Ag Vorrichtung zur verstellung der ausrichtung eines bodens, der auf das mittelteil eines uhrgehäuses geschraubt ist, in bezug auf eine achse 12h-6h
DE602004027370D1 (de) 2004-08-13 2010-07-08 Swatch Group Man Serv Ag Uhr mit Lichtleiternuhrenglas
US7324410B1 (en) * 2005-07-25 2008-01-29 Amir Ziv Watch with special back
EP1760556A1 (fr) * 2005-09-06 2007-03-07 The Swatch Group Management Services AG Dispositif de fixation d'un fond sur une carrure d'une montre
EP1890203B1 (fr) 2006-08-17 2012-08-01 Omega SA Boîte de montre comprenant un fond et procédé de fixation d'un fond sur une boîte de montre
JP2010127683A (ja) * 2008-11-26 2010-06-10 Seiko Instruments Inc 携帯時計
CH705089A2 (fr) * 2011-06-08 2012-12-14 Omega Sa Dispositif et procédé de fixation d'un élément de montre avec orientation angulaire réglable.
JP6364763B2 (ja) 2013-12-20 2018-08-01 カシオ計算機株式会社 ケース、及び時計
EP2952975B1 (fr) 2014-06-03 2019-04-24 The Swatch Group Research and Development Ltd Dispositif d'assemblage d'un cercle d'encageage dans une carrure de montre
KR102359245B1 (ko) * 2016-07-08 2022-02-04 가부시키가이샤 한도오따이 에네루기 켄큐쇼 전자 기기
CH712740B1 (fr) * 2016-07-26 2020-08-31 Omega Sa Sous-ensemble d'habillage pour pièce d'horlogerie, notamment une montre, ou pour bijou.

Also Published As

Publication number Publication date
US20200218201A1 (en) 2020-07-09
CN111427251A (zh) 2020-07-17
JP2020112550A (ja) 2020-07-27
EP3680729A1 (fr) 2020-07-15
JP6868088B2 (ja) 2021-05-12
CN111427251B (zh) 2022-10-11
US11698607B2 (en) 2023-07-11

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