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EP1102136A1 - Vorrichtung zum Aufsetzen einer Schutzkappe aus hartem Material auf den Mittelteil einer Uhr - Google Patents

Vorrichtung zum Aufsetzen einer Schutzkappe aus hartem Material auf den Mittelteil einer Uhr Download PDF

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Publication number
EP1102136A1
EP1102136A1 EP99122881A EP99122881A EP1102136A1 EP 1102136 A1 EP1102136 A1 EP 1102136A1 EP 99122881 A EP99122881 A EP 99122881A EP 99122881 A EP99122881 A EP 99122881A EP 1102136 A1 EP1102136 A1 EP 1102136A1
Authority
EP
European Patent Office
Prior art keywords
cap
center
screws
wall
cover
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.)
Granted
Application number
EP99122881A
Other languages
English (en)
French (fr)
Other versions
EP1102136B1 (de
Inventor
Denis Lüscher
Michael Bach
Fernand Vuillaume
Eloi Vuillaume
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.)
Rado Uhren AG
Original Assignee
Rado Uhren AG
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 Rado Uhren AG filed Critical Rado Uhren AG
Priority to DE69940381T priority Critical patent/DE69940381D1/de
Priority to EP99122881A priority patent/EP1102136B1/de
Publication of EP1102136A1 publication Critical patent/EP1102136A1/de
Application granted granted Critical
Publication of EP1102136B1 publication Critical patent/EP1102136B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached ornaments or amusement apparatus
    • G04B47/046—Changeable decorations and parts thereof, decorations for the case which change the external appearance of the clockwork
    • 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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/084—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown
    • 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
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases

Definitions

  • the subject of the present invention is a device for assembling a hard material cap on the upper edge of the middle of a box watch.
  • the visible parts that is to say the glass, the middle part and the cap are the parts most exposed to external aggressions, such as scratches, shocks, oxidation, etc.
  • the manufacturing is certainly delicate, but whose simple geometric shape does not involve complicated machining.
  • a very hard material such as ceramic.
  • Such a material has remarkable resistance to attack but has the disadvantages of still being sensitive to shocks and very badly lend themselves to too complex machining. For this reason, this hard material is most often used as a covering for an underlying structure more easily machinable and generally much cheaper.
  • document CH 508 925 proposes to removably fix the cap to an element of the housing by providing two grooves opposite between which are interposed with a closed elastic ring which will be compressed during mounting. If the section of this ring is too large, there is a risk of breaking the cap by forcing it to assembly; if on the contrary the section is too small the cap may turn around the middle which can be annoying for the passage of the time-setting rod, or unsightly if the cap is not perfectly circular.
  • the document CH 568 040 proposes to make blind holes radially in the underside plane of the cap, filling these holes with material easily to be threaded and to screw said cap onto an element of the middle part.
  • the solution proposed allows to consider, if necessary, a replacement of said cap and provides better relative positioning of the two assembled elements, but such a construction is relatively complex and the blind holes undoubtedly weaken said cap.
  • the object of the present invention is therefore to remedy the drawbacks of this prior art by providing a device for assembling a cap in hard material on the upper edge of the middle of a watch case or on an integral part thereof, said cap being obtainable with a reduced number of machining operations and can be easily replaced in case of breakage.
  • the invention relates to a removable assembly device of a hard material cap on the upper edge of the middle of a box watch closed by a crystal and a bottom delimiting with a circle casing, a space to house at least one movement, characterized in that that it includes a metal center whose external wall has a structure in stairs complementary to the internal structure of the cap made integral said center by means of at least two screws passing through it through holes for clamping flanges housed in formed radial recesses in a vertical wall of the cap, compressing an elastomeric seal arranged between two horizontal surfaces of stepped structures, and of which the thickness is sufficient to provide clearances at least between surfaces facing respectively the bottom and the base of the cap, and the wall vertical from the center and the wall of the cap joining the base.
  • the housing 1 of a wristwatch the visible parts of which essentially consist of a cap 20 forming a middle part 4, in which a recess 5 is formed for housing the time setting crown 7.
  • the recess 5 comprises in its center a gutter 26, visible in Figure 4, which joins the surface inside of the cap 20 to allow the passage of the stem of the crown setting the time 7.
  • the central part of the cap 20 comprises, above a dial 11 provided with hour / minute / second hands 13a, 13b, 13c, a sapphire crystal 3, the fixing of which will be explained later.
  • the cap 20 leaves visible, at the 12h-6h positions, below the middle 4, an extension 8 of the bottom 2, curved outward substantially along the curvature of a wrist and provided with horns 10 used for fixing a bracelet (not shown). It is obvious that after attaching a bracelet this extension 8 will no longer be visible at all.
  • the bottom 2 and the dial 11 define, with the casing circle 6, a housing 9 for a watch movement 29 held by two fixing screws 18 (also visible in Figure 3).
  • the cap 20 has an oblong shape and covers, from the perimeter of the glass 3, the entire surface of the watch by forming two ears 28 extending above the extensions 8, being, like said extensions 8 curved outwards to form a dome.
  • Figure 4 is an exploded perspective view of. device assembly, the different parts having the orientation seen from below shown in Figure 3.
  • the device includes a center metal 30, an elastomer washer 12, two screws 14, 16 and two flanges 15, 17 which will allow the assembly of the cap 20.
  • the wall inside of the cap has an annular staircase structure, from base 21, by orthogonal flat surfaces 21a, 22, 22a, 23a.
  • the base 21 is extended at the level of the ears 28 by oblique extensions 24 having the same inclination as the extensions 8 of the bottom 2.
  • the vertical part 21a, joining the base 21 and parallel to the middle part 4 has at the ears 28 two recesses 25, 27 diametrically opposite and intended to receive the flanges 15, 17. If except the operations of polishing the external surfaces, these recesses are the only parts of the cap 20 which require machining particular. They can, for example, be obtained by grinding diamond, or by planning, during the manufacture of the drawer cover in the mold at the locations of the recesses 25, 27.
  • the metal center 30 is formed of a ring whose surface exterior has a staircase shape, complementary to that of the cover 20, formed from the base 31 by flat surfaces 31a, 32, 32a, 33.
  • the inner wall 46 of metal center 30 comprises at its base and at its part upper two annular grooves 45, 47 for receiving seals seal 45a, 47a compressed respectively axially against the bottom 2 and radially against the vertical edge 3a of the glass 3.
  • the bottom of the groove annular 47 is extended towards the inside of the case 1 by a ring 40 which goes form a ring between the spout 3b of the glass 3 and the dial 11. It is quite obvious that this ring 40 is only optional and that it could be replaced by an independent flange.
  • the surface 33 of the metal center 30 comprises two open clearances 35, 37 diametrically opposite and intended to receive the flanges 15, 17.
  • the clearances 35.37 include in their substantially middle part the axial holes 34, 36 in which the screws 14, 16 of fixing the flanges 15, 17.
  • These clearances 35, 37 make it possible to reduce the height of the assembly device and facilitate the positioning of the center 30 above the flanges. According to a simpler embodiment, it is also possible to provide no clearance.
  • the metal center 30 finally comprises, distributed around its periphery, four tapped holes 39 for the fixing of the bottom 2 by means of four screws 19, as well as a radial bore 38 for the passage of the crown stem 7.
  • a first step starting from the central element formed by the metal center 30, it is possible to pre-assemble in a known manner all of the constituent parts of the watch, crystal 3, hands 13a, 13b, 13c, dial 11, casing ring 6, movement 29 and crown 7, except for the cap 20 and bottom 2.
  • the metal center 30 and the casing ring 6 can be made in one piece.
  • the dimensions of the assembled elements and the thickness of the elastomer washer 12 are provided so that there are very small clearance between the internal surfaces of the cap 20 and the surfaces of the facing elements, with the exception of the surfaces 22, 32 between which is compressed the elastomer washer 12.
  • the clearance between the oblique extension 24 and the extension 8 of the bottom 2 is designated by the reference 44, that between the base 21 and the bottom 2 by the reference 41, that between the wall 21a and the wall corresponding 31a from the center 30 by the reference 41a, that between the wall 23 and the outer edge 33 of the center 20 by the reference 43, and that between the wall 23a and the edge 3a of the glass 3 by the reference 43a.
  • the means for fixing the cap are at number of two and are positioned under the bottom 2 at the 12h-6h positions, at level of the cap where there is the most material.
  • the point of the most hollow 25, 27 close to the surface of the cap 20 remains the same around the entire periphery of said cap, so that one can, according to an alternative embodiment, consider put more than two fixing means occupying angular positions different from the axis 12h-6h.
  • the two axial holes 34, 36 and the four tapped holes 39 have an angular offset, i.e. they are distinct and that only the screws 19 for fixing the bottom 2 are visible.
  • the center 30 only comprises two tapped holes 39 for two screws 19 for fixing the bottom, the other two screws being combined with the flange fixing screws 14, 16 15, 17 having longer stems.
  • this embodiment has the advantage of being able to replace the cap 20 without depositing the bottom 2, and therefore without risk damage the seal 45a.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Clocks (AREA)
EP99122881A 1999-11-17 1999-11-17 Vorrichtung zum Aufsetzen einer Schutzkappe aus hartem Material auf den Mittelteil einer Uhr Expired - Lifetime EP1102136B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69940381T DE69940381D1 (de) 1999-11-17 1999-11-17 Vorrichtung zum Aufsetzen einer Schutzkappe aus hartem Material auf den Mittelteil einer Uhr
EP99122881A EP1102136B1 (de) 1999-11-17 1999-11-17 Vorrichtung zum Aufsetzen einer Schutzkappe aus hartem Material auf den Mittelteil einer Uhr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99122881A EP1102136B1 (de) 1999-11-17 1999-11-17 Vorrichtung zum Aufsetzen einer Schutzkappe aus hartem Material auf den Mittelteil einer Uhr

Publications (2)

Publication Number Publication Date
EP1102136A1 true EP1102136A1 (de) 2001-05-23
EP1102136B1 EP1102136B1 (de) 2009-02-04

Family

ID=8239417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122881A Expired - Lifetime EP1102136B1 (de) 1999-11-17 1999-11-17 Vorrichtung zum Aufsetzen einer Schutzkappe aus hartem Material auf den Mittelteil einer Uhr

Country Status (2)

Country Link
EP (1) EP1102136B1 (de)
DE (1) DE69940381D1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7967504B2 (en) 2008-04-01 2011-06-28 Montres Rado S.A. Push-button control device for a watch
CN103343765A (zh) * 2013-05-21 2013-10-09 张宝喜 用于手表、怀表和首饰的分体式金属实体连接装置
CN104317181A (zh) * 2014-08-26 2015-01-28 上海稻房投资有限公司 一种陶瓷背板防水手表
CN107193200A (zh) * 2017-07-19 2017-09-22 深圳市雷诺表业有限公司 一种可旋转快速拆卸的手表组合结构及手表
CN109375490A (zh) * 2018-11-16 2019-02-22 深圳市稳达时钟表有限公司 一种组合式diy手表及组合式diy手表的组装方法
CN110824883A (zh) * 2019-12-18 2020-02-21 东莞市天铭钟表有限公司 一种多层结构陀飞轮机械表

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH311861A (fr) * 1953-09-28 1955-12-15 Derobert Jean Montre.
CH506826A (fr) 1968-11-25 1970-10-30 Georges Ruedin S A Boîte de montre
CH508925A (fr) 1968-09-27 1971-02-15 Piquerez Sa Ervin Montre-bracelet comportant un écran protecteur
US3643423A (en) * 1969-09-30 1972-02-22 Piquerez Sa Ervin Protective screen for a timepiece casing
CH517963A (fr) 1960-10-05 1972-02-29 Schlup & Cie S A Boîte de montre
FR2231042A1 (en) * 1973-05-23 1974-12-20 Chatenoud Gilles Wrist watch with interchangeable decorative surround - covers point where bracelet is secured to watch case
CH568040A5 (en) 1973-09-14 1975-12-15 Weill Ernst Tooth brush with rotatable head - enables vertical cleaning movements to be made more easily and efficiently
CH667966GA3 (en) * 1987-02-18 1988-11-30 Sealed wrist watch casing - has plastic body and precious metal surround with e.g. gold restricted to part of watch thickness
US5490123A (en) * 1993-04-20 1996-02-06 Blancpain S.A. Watch case exhibiting a detachable bezel

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH311861A (fr) * 1953-09-28 1955-12-15 Derobert Jean Montre.
CH517963A (fr) 1960-10-05 1972-02-29 Schlup & Cie S A Boîte de montre
CH508925A (fr) 1968-09-27 1971-02-15 Piquerez Sa Ervin Montre-bracelet comportant un écran protecteur
CH506826A (fr) 1968-11-25 1970-10-30 Georges Ruedin S A Boîte de montre
US3643423A (en) * 1969-09-30 1972-02-22 Piquerez Sa Ervin Protective screen for a timepiece casing
FR2231042A1 (en) * 1973-05-23 1974-12-20 Chatenoud Gilles Wrist watch with interchangeable decorative surround - covers point where bracelet is secured to watch case
CH568040A5 (en) 1973-09-14 1975-12-15 Weill Ernst Tooth brush with rotatable head - enables vertical cleaning movements to be made more easily and efficiently
CH667966GA3 (en) * 1987-02-18 1988-11-30 Sealed wrist watch casing - has plastic body and precious metal surround with e.g. gold restricted to part of watch thickness
US5490123A (en) * 1993-04-20 1996-02-06 Blancpain S.A. Watch case exhibiting a detachable bezel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7967504B2 (en) 2008-04-01 2011-06-28 Montres Rado S.A. Push-button control device for a watch
CN103343765A (zh) * 2013-05-21 2013-10-09 张宝喜 用于手表、怀表和首饰的分体式金属实体连接装置
CN104317181A (zh) * 2014-08-26 2015-01-28 上海稻房投资有限公司 一种陶瓷背板防水手表
CN107193200A (zh) * 2017-07-19 2017-09-22 深圳市雷诺表业有限公司 一种可旋转快速拆卸的手表组合结构及手表
CN109375490A (zh) * 2018-11-16 2019-02-22 深圳市稳达时钟表有限公司 一种组合式diy手表及组合式diy手表的组装方法
CN110824883A (zh) * 2019-12-18 2020-02-21 东莞市天铭钟表有限公司 一种多层结构陀飞轮机械表

Also Published As

Publication number Publication date
EP1102136B1 (de) 2009-02-04
DE69940381D1 (de) 2009-03-19

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