EP4086710A1 - Uhrengehäuse mit einem mechanismus zur betätigung einer beweglichen anzeige - Google Patents

Uhrengehäuse mit einem mechanismus zur betätigung einer beweglichen anzeige Download PDF

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Publication number
EP4086710A1
EP4086710A1 EP21172240.0A EP21172240A EP4086710A1 EP 4086710 A1 EP4086710 A1 EP 4086710A1 EP 21172240 A EP21172240 A EP 21172240A EP 4086710 A1 EP4086710 A1 EP 4086710A1
Authority
EP
European Patent Office
Prior art keywords
bezel
indicator
toothing
box
pinion
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
EP21172240.0A
Other languages
English (en)
French (fr)
Inventor
François Maire
Philipp Tschumi
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.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development 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 Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP21172240.0A priority Critical patent/EP4086710A1/de
Priority to JP2022072108A priority patent/JP7386924B2/ja
Priority to KR1020220052743A priority patent/KR20220151119A/ko
Priority to CN202210473282.1A priority patent/CN115309024A/zh
Priority to US17/736,529 priority patent/US20220357705A1/en
Publication of EP4086710A1 publication Critical patent/EP4086710A1/de
Pending 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
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/08—Mechanical devices for setting the time indicating means by using parts of the case
    • G04B27/083—Mechanical devices for setting the time indicating means by using parts of the case which may be used for winding when changed form the normal position
    • 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
    • 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
    • G04B37/0033—Cases for pocket watches and wrist watches with cover or bottom which can slide or turn (without a spring action)
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/08—Mechanical devices for setting the time indicating means by using parts of the case
    • 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
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G04B39/02—Sealing crystals or glasses
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/223—Arrangements for indicating different local apparent times; Universal time pieces with rotary disc, rotary bezel, or rotary dial

Definitions

  • the invention relates to the field of watchmaking, and in particular that of watchmaking components.
  • the invention relates to a watch case comprising a mechanism for actuating a mobile indicator.
  • watch cases comprising one or more rotating bezels intended to indicate certain information to a user.
  • boxes are known that have a fluted rotating bezel adapted to drive an indicator situated inside the caseband making it possible to count the duration of the flight for aircraft pilots.
  • the patent CH681127 in the name of WERTHANOR describes a moving assembly formed by a rotating bezel, a crystal and a flange, said moving assembly being separated from the middle by a seal.
  • the invention solves the aforementioned drawbacks by proposing a simple and reliable solution for driving an indicator inside the case of a watch.
  • the present invention relates to a watch case comprising a middle part to which are fixed a crystal and a back delimiting an internal volume in which is arranged a watch movement intended to drive indicator organs, said case further comprising a mechanism for actuation of a rotatable indicator housed in the internal volume of the box, and being characterized in that said actuation mechanism comprises a rotatable bezel intended to be manipulated by a user and a transmission pinion arranged in relation meshing with the bezel and the indicator, the respective axes of rotation of the bezel, of the transmission pinion and of the indicator being parallel to each other.
  • the operation of the actuating mechanism is not sensitive to magnetic fields and is relatively simple to produce.
  • the present invention comprises a reduced number of moving parts, which contributes to ensuring the reliability of the actuation mechanism.
  • the characteristics of the invention make it possible to be able to guarantee effective sealing between the internal volume of the box and the external environment insofar as the bezel is not mechanically linked to the glass.
  • the invention may also include one or more of the following characteristics, taken individually or in all technically possible combinations.
  • the bezel, the indicator and the transmission pinion are configured so that the bezel and the indicator pivot at the same angular speed when the bezel is rotated.
  • the transmission pinion comprises an upper toothing and a lower toothing, extending coaxially with one another so that the upper toothing meshes with a toothing of the bezel and so that the lower toothing engages a toothing of the indicator.
  • the upper and lower teeth are separated from each other by a radial groove receiving a seal.
  • This arrangement makes it possible to ensure effective sealing between the internal volume of the box and the external environment.
  • the indicator is formed by a flange comprising a cylindrical wall at a lower end of which extends radially from an outer face of said cylindrical wall, a toothed radial lip, said radial lip being arranged as a screw -to-vis a radial bearing surface of the caseband so as to cooperate with the lower toothing of the transmission pinion in meshing relationship, said flange further comprising an index extending from an internal face of the cylindrical wall.
  • the bezel is engaged in an axial annular groove of the middle part, by means of a cylindrically-shaped lip carrying external toothing so as to cooperate with the upper toothing of the transmission pinion in relation to meshing.
  • the bezel is engaged in an axial annular groove of the middle part, by means of a cylindrical lip carrying internal toothing cooperating in mesh with a toothing of a return pinion mounted free in rotation. in a housing of the middle part, said return pinion being arranged so as to cooperate with the upper toothing of the transmission pinion.
  • the bezel is bidirectional.
  • the transmission pinion is engaged in a housing formed in the middle part, said housing emerging via a lower end and via an upper end onto radial openings.
  • the housing opens via the upper end onto the axial annular groove of the middle part and via the lower end onto the radial bearing surface and onto a recess with which the middle part is fitted, said recess being intended to receive a supporting sole.
  • the housing opens via the upper end onto the axial annular groove of the middle part and via the lower end onto the radial bearing surface and onto a stopper interposed between a lower end of the transmission pinion and the bottom.
  • a peripheral seal is interposed between the flange and the caseband.
  • the caseband is provided with at least one orifice receiving a spring pusher, one elastically deformable end of which is provided to cooperate with positioning cavities made in the bezel in order to generate a notch during the rotation of the the glasses.
  • the bezel, the transmission pinion and the indicator each have a body on which are fixed their respective teeth.
  • the present invention relates to a case 10 of a watch, as represented on the figure 1 , comprising a middle part 11 to which are attached a crystal 12 and a back 13 delimiting an internal volume in which is arranged a watch movement 14 intended to drive indicator members, such as hour, minute and possibly second hands.
  • the watch movement 14 can be mechanical or electromechanical and is covered by a dial 20.
  • the box 10 advantageously comprises a mechanism for actuating a mobile indicator 16 housed in the internal volume of the box 10.
  • the actuation mechanism comprises a rotating bezel 15 intended to be manipulated by a user and a transmission pinion 17 arranged in meshing relationship with the bezel 15 on the one hand, and with the indicator 16 on the other hand. .
  • the respective axes of rotation of the bezel 15, of the transmission pinion 17 and of the indicator 16 are parallel to each other. This characteristic allows the actuating mechanism to be of simple design and to have great reliability insofar as it has very few moving parts.
  • bezel 15 is intended to pivot around crystal 12 which is held in position in caseband 11 by a retaining joint 18.
  • the bezel 15 is engaged in the caseband 11 and is held in the axial position by a translation stop member, formed in the present embodiment of the invention by an elastic ring 19 partly housed in an external radial groove of the caseband 11, and partly in an internal radial groove of the bezel 15.
  • the elastic ring 19 preferably comprises, in a manner known to those skilled in the art, a succession of rectilinear segments connected to each other, or has an oblong shape , so as to form an open ring.
  • the bezel 15 is engaged in an axial annular groove 110 of the middle part 11, by means of a lip 150 of cylindrical shape carrying external toothing.
  • the axial annular groove 110 extends over a face called the "upper face" of the middle part 11.
  • the lip 150 of the bezel 15 forms a shoulder with a radial bearing surface 151 of the bezel 15 arranged opposite the upper face of the middle part 11.
  • the caseband 11 comprises a housing 111 of substantially cylindrical shape receiving the transmission pinion 17, visible in particular in the exploded view of the figure 2 .
  • the transmission pinion 17 comprises two coaxial teeth respectively called “upper toothing” 170 and “lower toothing” 171 in the following text, separated from each other by a radial groove receiving a seal 172.
  • the pinion transmission 17 comprises two opposite longitudinal ends forming pivots, respectively called “lower end” and “upper end” in the following text.
  • the seal 172 advantageously rests against a peripheral wall of the housing 111, so as to ensure airtightness and watertightness between the internal volume of the box 10 and the outside.
  • the caseband 11 comprises, at a first end of the housing 111, called the "upper end", intended to be opposite the bezel 15, a preferentially through hole opening onto the upper face of the caseband 11 and guiding in rotation the upper end of the transmission pinion 17.
  • the upper end of the housing 111 also opens radially onto the axial annular groove 110 of the middle part 11, so that the upper toothing 170 of the transmission pinion 17 is in meshing relationship with the toothing of the bezel 15 , as shown in the sectional view of the picture 3 .
  • a second end of the housing 111 opens into a recess 112 with which the caseband 11 is provided.
  • transmission 17 as the exploded view of the picture 2 and as shown in the sectional view of the picture 3 .
  • the support sole 113 is preferably screwed onto the caseband 11 and has a shape complementary to that of the recess 112.
  • the caseband 11 comprises a radial bearing 114 opposite which the indicator 16 is arranged.
  • the radial bearing 114 is oriented opposite of the bottom 13 as visible in the exploded view of the figure 2 , and forms a shoulder with the recess 112 so that the housing 111 opens radially onto said radial bearing surface 114.
  • the indicator 16 is formed by a flange comprising a cylindrical wall 160 at a lower end of which and from an outer face of which extends a toothed radial lip 161, said radial lip 161 being arranged so as to extend opposite the radial bearing surface 114 so as to cooperate in meshing relationship with the lower toothing 171 of the transmission pinion 17.
  • the rotation of the bezel 15 causes, through the transmission pinion 17, the rotation of the flange.
  • the transmission ratios between the toothing of the bezel 15, the upper 170 and lower 171 toothing and the toothing of the radial lip 161 of the flange are such that the bezel 15 and the flange pivot at the same angular speed.
  • the axes of rotation of the bezel 15 and of the flange are concentric.
  • the cylindrical wall 160 is interposed between the watch movement 14 and the middle part 11, as shown in particular by the sectional view of the picture 3 .
  • the flange further comprises an index 162, in the form of a graphic representation or a relief extending radially from an internal face of the cylindrical wall 160, at the level of the upper end of the latter.
  • the caseband 11 may include a second recess 115 receiving a second support sole 116 as a fixing, the support soles 113 and 116 being adapted by their shape, to form axial stops, preventing any axial movement of the flange, except for mechanical play allowing it to be rotated.
  • the box 10 in place of the support soles 113 and 116, the box 10 comprises a plug 117 of substantially cylindrical shape interposed between the lower end of the transmission pinion 17, which it guides in rotation, and the bottom 13.
  • the stopper 117 can be made of any suitable material, for example a plastic material, and can be driven into a housing extending in the middle part 11 and/or in a casing ring 21.
  • the dial 20 and the watch movement 14 are preferably held axially in position in the internal volume of the case 10 by the casing ring 21, in a manner known to those skilled in the art.
  • a peripheral seal 118 can be interposed between the outer face of the flange and the middle part 11.
  • peripheral seal 118 can be arranged in a groove 119 provided for this purpose, forming a shoulder with the radial bearing surface 114.
  • Such a peripheral seal 118 makes it possible to hold the flange in position during the manufacture of the case 10, said flange being subsequently fixed axially in the internal volume of the case 10 by the casing ring 21.
  • middle part 11 on a lower face opposite its upper face, is provided with at least one orifice 22 opening onto said upper face.
  • the orifice 22 receives a spring plunger 23, one elastically deformable end of which extends through the upper face, said end being provided to cooperate with positioning cavities 152 made in the bezel 15 in order to generate indexing during the rotation of the bezel 15.
  • sixty positioning cavities 152 are angularly distributed over the bezel 15 so that each angular position taken by the index corresponds to a division of one minute.
  • three spring pushers 23 are arranged in the caseband 11, at 120 degrees from each other.
  • the bezel 15 may comprise instead of an external toothing, an internal toothing, cooperating in mesh with a toothing of a return pinion mounted free in rotation in a housing of the middle part 11.
  • the return pinion is arranged so as to cooperate with the upper toothing 170 of the transmission pinion 17.
  • the bezel 15, the transmission pinion 17 and the indicator 16 each have a body on which are fixed, for example by driving in or welding, their respective teeth.
  • Such an alternative, in which the bezel 15, the transmission pinion 17 and the indicator 16 are each formed in two parts, is represented on the figure 4 .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electric Clocks (AREA)
  • Gear Transmission (AREA)
EP21172240.0A 2021-05-05 2021-05-05 Uhrengehäuse mit einem mechanismus zur betätigung einer beweglichen anzeige Pending EP4086710A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21172240.0A EP4086710A1 (de) 2021-05-05 2021-05-05 Uhrengehäuse mit einem mechanismus zur betätigung einer beweglichen anzeige
JP2022072108A JP7386924B2 (ja) 2021-05-05 2022-04-26 可動インジケータを作動させるための機構を備える腕時計ケース
KR1020220052743A KR20220151119A (ko) 2021-05-05 2022-04-28 이동 인디케이터를 작동시키는 메카니즘을 포함하는 시계 케이스
CN202210473282.1A CN115309024A (zh) 2021-05-05 2022-04-29 包括用于致动可动的指示器的致动机构的表壳
US17/736,529 US20220357705A1 (en) 2021-05-05 2022-05-04 Watch case comprising a mechanism for actuating a moving indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21172240.0A EP4086710A1 (de) 2021-05-05 2021-05-05 Uhrengehäuse mit einem mechanismus zur betätigung einer beweglichen anzeige

Publications (1)

Publication Number Publication Date
EP4086710A1 true EP4086710A1 (de) 2022-11-09

Family

ID=75825511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21172240.0A Pending EP4086710A1 (de) 2021-05-05 2021-05-05 Uhrengehäuse mit einem mechanismus zur betätigung einer beweglichen anzeige

Country Status (5)

Country Link
US (1) US20220357705A1 (de)
EP (1) EP4086710A1 (de)
JP (1) JP7386924B2 (de)
KR (1) KR20220151119A (de)
CN (1) CN115309024A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR727104A (fr) * 1931-02-05 1932-06-13 Jaeger Ets Ed Perfectionnements aux montres
CH304088A (fr) * 1952-12-04 1954-12-31 Bliss Marcel Montre.
CH681127B5 (de) 1991-07-30 1993-07-30 Werthanor Sa
EP1342131A1 (de) 2000-12-01 2003-09-10 Tag-Heuer S.A. Uhrengehäuse

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH486728A (fr) * 1967-08-16 1969-09-15 Piquerez Sa Ervin Pièce d'horlogerie comprenant deux lunettes tournantes
CH662234A5 (en) * 1985-09-13 1987-09-30 Universal watch
JPH0823592B2 (ja) * 1986-11-26 1996-03-06 シチズン時計株式会社 時計の回転ベゼル構造
EP1857892B1 (de) * 2006-04-25 2008-07-02 The Swatch Group Management Services AG Uhr mit einem drehbaren Teil
JP5208010B2 (ja) * 2009-02-13 2013-06-12 セイコーインスツル株式会社 時計
CN207867239U (zh) * 2018-03-12 2018-09-14 东莞市亿丰钟表有限公司 一种扳手带动齿轮的开盖结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR727104A (fr) * 1931-02-05 1932-06-13 Jaeger Ets Ed Perfectionnements aux montres
CH304088A (fr) * 1952-12-04 1954-12-31 Bliss Marcel Montre.
CH681127B5 (de) 1991-07-30 1993-07-30 Werthanor Sa
EP1342131A1 (de) 2000-12-01 2003-09-10 Tag-Heuer S.A. Uhrengehäuse

Also Published As

Publication number Publication date
US20220357705A1 (en) 2022-11-10
KR20220151119A (ko) 2022-11-14
JP2022173093A (ja) 2022-11-17
CN115309024A (zh) 2022-11-08
JP7386924B2 (ja) 2023-11-27

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