EP0383179B1 - Boîte de montre munie d'une coiffe en matériau dur - Google Patents

Boîte de montre munie d'une coiffe en matériau dur Download PDF

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Publication number
EP0383179B1
EP0383179B1 EP90102396A EP90102396A EP0383179B1 EP 0383179 B1 EP0383179 B1 EP 0383179B1 EP 90102396 A EP90102396 A EP 90102396A EP 90102396 A EP90102396 A EP 90102396A EP 0383179 B1 EP0383179 B1 EP 0383179B1
Authority
EP
European Patent Office
Prior art keywords
cap
watch case
frusto
case according
inner middle
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.)
Expired - Lifetime
Application number
EP90102396A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0383179A1 (fr
Inventor
Paul Gogniat
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
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Application filed by Rado Uhren AG filed Critical Rado Uhren AG
Publication of EP0383179A1 publication Critical patent/EP0383179A1/fr
Application granted granted Critical
Publication of EP0383179B1 publication Critical patent/EP0383179B1/fr
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
    • 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
    • G04B37/086—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown for shaped 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
    • 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 present invention relates to watch cases whose visible parts are made of a hard material so as not to risk being scratched when they are worn on the wrist.
  • the cap described in the booklet CH 517 963 has an outer face which may have the shape of a truncated cone and on its inner side two annular shoulders stepped and between them cylindrical connecting surfaces. It is forcibly engaged on a corresponding profile part of the interior middle part and glued.
  • the cap is removably mounted by means of an elastic ring on the inner middle part.
  • the cap has an internal groove.
  • the Japanese utility model no. 1046157 also filed in 1969, proposes, for the fixing of two distinct constituents of a box body, a malleable metal part, of annular shape, which is interposed between them.
  • Document CH 17664/68 also discloses a watch case provided with a hard material cap, which is fixed to a middle part by interposition of an annular fixing member and which rests, by a planar annular edge formed on a massive part, on a plane annular radial shoulder formed on the middle part.
  • the object of the present invention is to improve watch cases comprising a cap made of a hard material, and more particularly to reduce their cost price while increasing their reliability.
  • the watch case according to the invention has the characteristics set out in claim 1.
  • the watch case shown in Figure 3 has four main parts: an inner middle 1, a cap 2, a glass 3 and a bottom 4. While the glass 3 and the bottom 4 are conventional parts which it is not necessary to describe the structure in detail, the inner middle part 1 and the cover 2 have shapes which are determined so that the manufacturing operations are simplified and those of assembly facilitated.
  • the inner middle part 1 is made of an easily machinable metal, for example stainless steel. It could also be made of another material, for example plastic.
  • the setting technique shape will be adapted to the material used: bar turning or stamping and final machining, molding, etc.
  • the inner middle part 1 is intended to contain a movement 5, advantageously of the analog type. It comprises a lower part 6 and an upper part 7.
  • the lower part 6 is integral with the base 4. It surrounds and carries the movement 5, in a conventional manner which will therefore not be described in more detail.
  • the upper part 7 is in the form of a circular ring with a flat upper face 8, a cylindrical external lateral face 9 and a slightly frustoconical internal lateral face 10. This latter surface is limited downwards by a shoulder 11 intended to form a flange and therefore to maintain the outer edge of the dial carried by the movement 5.
  • a flat shoulder 13 At the limit between the parts 6 and 7 and at the foot of the surface 9 extends a flat shoulder 13 whose circular outer edge limits an external frustoconical surface 14 which forms a support surface for the cover 2.
  • the plan shape of the inner middle part 1 is the same as that of the cap 2 and the frustoconical surface 14 extends outward to the line which determines the outline of these parts. However, the notches 15 located between the horns 16 and the notch 17 provided at 3 o'clock for the crown are covered by the edge of the cap 2.
  • the cap 2 is a piece of sintered hard metal. It has a massive outer part 18 of annular shape and a thin inner part 19 which forms an annular rim at the top of the part 18. The latter is limited inwards by a circular cylindrical surface 20, downwards by a internal frustoconical surface 21 of the same inclination as the surface 14 and upwards by a frustoconical surface 22, truncated at the level of the upper surface 23 of the flange 19.
  • the side faces of the cap comprises two longitudinal surfaces 24 and 25 for generating parallel to the common axis has surfaces 14, 20, 21, 22 and two surface portions 26 and 27 circular cylindrical and coaxial, the axes of which coincide with the 'common axis a .
  • the surfaces 24 to 27 thus define the periphery of the watch, which is rectangular in shape with rounded sides, the long sides of the rectangle being oriented in a direction roughly parallel to the 12h-6h axis of the watch.
  • two flat faces 28, adjacent to the notches 15, provide a passage for a bracelet, not shown, intended to be fixed to the horns 16.
  • the two components 1 and 2 of the box body are fixed to each other permanently by a ring 31 of deformable material, for example an elastomer, engaged in the radial clearance which is provided between the coaxial surfaces 20 and 9.
  • the height positioning is ensured by contacting the surfaces 14 and 21.
  • the lining 31 can be glued.
  • the manufacture of the cap is simplified by the fact that the only surfaces which must be machined to precise dimensions are the surfaces 20 and 21. They can be corrected by means automatically driven and allowing mass production. Surfaces 22 to 27 must be ground and polished. However, these are flat, frustoconical or cylindrical surfaces which are situated outside the box and whose dimensions are therefore not critical. Moreover, even the thickness of the radial clearance between the surfaces 9 and 20 can withstand large machining tolerances, allowed by the deformation of the ring 31.
  • the frustoconical surfaces, respectively internal 21 and external 22 of the massive part 18 of the cap have substantially the same inclination so that this massive part 18 has all its periphery a substantially constant thickness.
  • the massive part 18 of the cover 2 has in longitudinal section (along the common axis a ) a profile in the form of parallelogram.
  • the glass 3 can be fixed in the opening of the internal rim 19 by means of an intermediate seal 32 and is supported on the upper face 8.
  • the box thus described has an aesthetic effect giving the watch an impression of thinness, compared to the box described in patent CH 517,963.
  • the lower edges 24a and 25a of the large ones sides 24 and 25 respectively of the cap 2 are curved, that is to say that with respect to the cap they have a concave shape.
  • These lower edges 24a, 25a and the corresponding upper edge 24b, 25b delimit the surface of the long sides 24 and 25 which define bands called bands of middle.
  • each longitudinal sideband 24 and 25 has a constant width and a curved appearance open towards the bottom of the cap which corresponds to the region closest to the wrist.
  • edges and of the middle bands is due to the geometric combination of the long sides of the cap which are circular and of the frustoconical shape of the internal 21 and external 22 surfaces of the massive part 18 of the cap.
  • the internal frustoconical surface 21 extends to the long sides 24 and 25 of the middle part, and opens out from the latter.
  • the frustoconical 21 and circular 24, 25 surfaces are contiguous and form common edges which are the lower edges 24a and 25a.
  • the outer frustoconical surface 22 is contiguous to the lateral circular surfaces 24 and 25 and defines therewith the upper edges 24b and 25b.
  • the curvature of the upper edges 24b, 25b and lower 24a, 25a is defined by the taper of the surfaces 21 and 22 and by the radius of the long sides 24 and 25.
  • each upper edge 24b, 25b is substantially parallel to the lower edge 24a, 25a which corresponds to it.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Clocks (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Electromechanical Clocks (AREA)
  • Casings For Electric Apparatus (AREA)
EP90102396A 1989-02-14 1990-02-07 Boîte de montre munie d'une coiffe en matériau dur Expired - Lifetime EP0383179B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH515/89 1989-02-14
CH51589 1989-02-14

Publications (2)

Publication Number Publication Date
EP0383179A1 EP0383179A1 (fr) 1990-08-22
EP0383179B1 true EP0383179B1 (fr) 1992-11-04

Family

ID=4188771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102396A Expired - Lifetime EP0383179B1 (fr) 1989-02-14 1990-02-07 Boîte de montre munie d'une coiffe en matériau dur

Country Status (7)

Country Link
US (1) US4979157A (ja)
EP (1) EP0383179B1 (ja)
JP (1) JP2613806B2 (ja)
KR (1) KR970001847B1 (ja)
DE (1) DE69000416T2 (ja)
HK (1) HK208296A (ja)
MY (1) MY104828A (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH680825B5 (ja) * 1991-06-27 1993-05-28 Rado Montres Sa
EP1906268A1 (fr) * 2006-09-27 2008-04-02 Omega SA Boîtier de montre à carrure composite
CN104407509A (zh) * 2014-01-24 2015-03-11 珠海罗西尼表业有限公司 手表及其制造方法
DE102016113744A1 (de) * 2016-07-26 2018-02-01 Porsche Lizenz- Und Handelsgesellschaft Mbh & Co.Kg Chronograph und Verfahren zum Betrieb eines Chronographen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052316A1 (de) * 1980-11-15 1982-05-26 RODI & WIENENBERGER Aktiengesellschaft Armbanduhr
EP0150746A2 (fr) * 1984-01-26 1985-08-07 Montres Rado S.A. Boîte de montre
EP0221233A1 (fr) * 1985-10-07 1987-05-13 Eta SA Fabriques d'Ebauches Pièce d'horlogerie dont la boîte est réalisée en un matériau dur
EP0280963A1 (fr) * 1987-02-25 1988-09-07 Eta SA Fabriques d'Ebauches Montre couverte d'une coiffe et procédé de montage d'une telle montre
US4815053A (en) * 1988-01-21 1989-03-21 Remy Montavon S.A. Rotating-bezel watch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191511730A (en) * 1915-08-13 1916-04-13 Hugh Rotherham Improvements in or relating to Wrist-watches.
DE871130C (de) * 1941-09-26 1953-03-19 Werner Schmitz Wasserdichtes Uhrgehaeuse
CH517963A (fr) * 1960-10-05 1972-02-29 Schlup & Cie S A Boîte de montre
DE1523843A1 (de) * 1965-05-06 1969-07-10 Jean Steimann Dichtes Uhrengehaeuse
CH1454068A4 (ja) * 1968-09-27 1971-02-15
US3841848A (en) * 1970-01-30 1974-10-15 Suwa Seikosha Kk HARD WATCH CASE COMPRISING TiN, T, AND AT LEAST ONE OF Mn, Al AND V
JPS4839653U (ja) * 1971-09-13 1973-05-17
JPS5387157A (en) * 1977-01-12 1978-08-01 Hitachi Ltd Non-linear a-d converter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052316A1 (de) * 1980-11-15 1982-05-26 RODI & WIENENBERGER Aktiengesellschaft Armbanduhr
EP0150746A2 (fr) * 1984-01-26 1985-08-07 Montres Rado S.A. Boîte de montre
EP0221233A1 (fr) * 1985-10-07 1987-05-13 Eta SA Fabriques d'Ebauches Pièce d'horlogerie dont la boîte est réalisée en un matériau dur
EP0280963A1 (fr) * 1987-02-25 1988-09-07 Eta SA Fabriques d'Ebauches Montre couverte d'une coiffe et procédé de montage d'une telle montre
US4815053A (en) * 1988-01-21 1989-03-21 Remy Montavon S.A. Rotating-bezel watch

Also Published As

Publication number Publication date
MY104828A (en) 1994-06-30
DE69000416D1 (de) 1992-12-10
EP0383179A1 (fr) 1990-08-22
KR900013359A (ko) 1990-09-05
KR970001847B1 (ko) 1997-02-17
HK208296A (en) 1996-11-29
JP2613806B2 (ja) 1997-05-28
DE69000416T2 (de) 1993-05-19
US4979157A (en) 1990-12-18
JPH02240592A (ja) 1990-09-25

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