EP0351706A1 - Boîte de montre recouverte d'une coiffe collée à la carrure - Google Patents

Boîte de montre recouverte d'une coiffe collée à la carrure Download PDF

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Publication number
EP0351706A1
EP0351706A1 EP89112743A EP89112743A EP0351706A1 EP 0351706 A1 EP0351706 A1 EP 0351706A1 EP 89112743 A EP89112743 A EP 89112743A EP 89112743 A EP89112743 A EP 89112743A EP 0351706 A1 EP0351706 A1 EP 0351706A1
Authority
EP
European Patent Office
Prior art keywords
cap
bezel
glue
watch case
housing
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Withdrawn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
EP89112743A
Other languages
German (de)
English (en)
French (fr)
Inventor
Laurent Grosjean
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
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0351706A1 publication Critical patent/EP0351706A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • G04B37/0008—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
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • G04B37/225—Non-metallic cases
    • G04B37/226—Non-metallic cases coated with a metallic layer

Definitions

  • the present invention relates to a watch case comprising a middle-bezel, a crystal attached to the middle-bezel and a cap entirely covering the bezel and extending at least partially along the flank presented by the middle.
  • the box is provided with a cap covering the middle part and comprising two handles.
  • the cap is made integral with the rest of the box by engaging the strands of the bracelet in the handles.
  • Patent CH-A-558,040 describes a watch case comprising a protective cap made of extra hard material.
  • the cap is held in place by screws perpendicular to the plane of the case, passing through the middle of the bezel and taking in threaded studs attached under the cap.
  • the cap has a fairly complicated cross section due to the presence of tapped studs.
  • the middle-bezel must be made in a special shape to be adapted to the cap which surmounts it.
  • Patent CH-A-307,046 proposes a transparent plastic cap covering a housing made of plastic material.
  • the underside of the cap is covered with a metallization, the thickness of which can be very small (between 0.5 and 1 ⁇ m) since it is protected by The hairdo.
  • the cap thus coated is glued to the housing. Besides that this is an expensive construction, it should be mentioned that the outer parts of the cap made of soft material are subject to rapid deterioration (scratches, etc.).
  • the cap is light, made of a cut and stamped sheet, and if in addition, it is known to choose wisely and the materials to be bonded and the glue itself, the applicant has discovered that the holding of the cap by gluing on the middle is very satisfactory vis-à-vis the stresses and stresses occurring when wearing the watch.
  • the present invention is therefore characterized by the fact that the middle-bezel is made of plastic and that the cap is made of a metal sheet shaped to match the relief of the bezel and the middle which it surmounts. , said cap being fixed to the middle-bezel by means of glue interposed at least in places between said cap and said middle-bezel.
  • the watch case 1 of FIG. 1 essentially comprises a middle part-bezel 2, a crystal 3 fixed to the middle part-bezel and a cap 5 capable of entirely covering the bezel part 15 of the middle part-bezel 2, this cap extending at least partially along the flank presented by the middle part 16 of the middle part-bezel 2.
  • the middle part-bezel comprises two pairs of horns 9 and 10 between which the half-bracelets 6 are articulated respectively and 7.
  • the half-bracelet 6 is articulated around a bar 8 threaded in holes 11 and 12 made in the horns 9.
  • the half-bracelet 7 is articulated around a bar 18 threaded in holes 19 and 20 practiced in the horns 10.
  • the cap 5 is made of a metal sheet shaped so as to match the relief of the bezel 15 and the side of the middle 16 that it overcomes.
  • the shaping of the cap may comprise several stages, for example a preliminary stamping followed by a stamping. From these operations came the cap 5 with its bore 25, the curve of its bezel and the vertical walls covering the sides of the middle.
  • the thickness of the sheet was chosen here at 0.3 mm, but other thicknesses more or less could also be suitable.
  • the middle-bezel is made of plastic, which leads to a very inexpensive watch and manufactured in large series. But the feeling of cheapness can just disappear if the middle-bezel is dressed by the cap made according to the invention.
  • the "Swatch" watch registered trademark
  • middle-bezel which would be coated of a headdress giving to this watch has a new aesthetic appearance without changing its famous shape and without significantly modifying its cost price.
  • a cap made of steel sheet, possibly colored changes the aesthetic appearance of the watch by giving the impression that this watch is made of metal and this without changing anything in its shape.
  • FIGS. 2a, 2b and 2c which are sections along line II-II of FIG. 1, assuming the cap assembled. on the middle-bezel.
  • the watch case presented in FIGS. 2a to 2c comprises a middle part-bezel 2 having, inter alia, a bezel part 15 and a middle part 16.
  • the bezel-middle part also has a bottom 4 made in one piece with said middle-bezel .
  • This box further comprises a lens 3 and a cap 5.
  • the lens and the middle part are made of materials which can be welded together.
  • the middle part may be, for example, made of one of the designated materials, usually by ABS (acryl butadiene styrene), ASA (acryl styrene acryl-ester) or SAN (styrene acryl nitrile).
  • the glass is made of a transparent acrylic resin (PMMA) commonly known under the registered trademark "plexiglass".
  • the glass can be fixed in several ways to the middle part.
  • the glass 3 comprises a lip 22 of cylindrical shape, engaged in a groove 24 of the middle part 16.
  • the end of the lip 22 and the bottom of the groove 24 together form a ring 26, made of an alloy of the materials of the glass 3 and the middle part 2.
  • This ring 26 is formed during the ultrasonic welding of the glass to the middle part, welding which causes the materials at the end of the lip 22 and the bottom of the groove to merge 24.
  • the crystal 3 further comprises a heel 28 covering the edge of the bezel 15. Another heel 30 carried by the glass holds the dial 31 in place.
  • FIG. 2b shows a second embodiment of the invention.
  • a housing 33 has been made in the thickness of the middle part 16.
  • This housing has also been shown in FIG. 1, where it can be seen that it extends partly along the periphery of the middle part 16.
  • this housing is filled with glue 34.
  • This second embodiment is advantageous because it provides a sort of notching of the cap on the middle part-bezel. Indeed, as the glue holds better on metal than on plastic, it is at its joint with the middle part made of plastic that it will drop, if it has to drop, and not at its joint with the metal cap.
  • the glue 34 then constitutes a bead firmly attached to the cap and preventing the latter from escaping from the middle part.
  • Figure 2c shows a third embodiment of the invention.
  • the side of the middle part 16 covered by the cover 5 successively presents, starting from the bezel 15, a first recessed area 35 which provides a clearance between the middle and the cover, a second area having a housing 36 provided in the thickness of the middle part 6 and finally, a third zone 37 arranged to be in contact with the internal wall 38 presented by the cover 5, all these zones extending at least partially along the periphery of the middle part 16.
  • the bonding is carried out as follows: before inserting the cap on the middle part of the bezel, the internal wall 38 of the cap 5 intended to face the face is coated with a relatively thick layer of glue.
  • the cap is then introduced on the middle part, this action transporting, by scraping the glue on the edge referenced 41 presented by the middle part, said glue 39 in the housing t 36, any surplus 40 coming to lodge in the first recessed area 35.
  • This third embodiment is more complicated and requires more care than the other two modes described above. He has for it however has the advantage of an execution presenting a better finish. In addition, the advantage mentioned in connection with the second embodiment remains.
  • the cap 5 is made of metal and that the middle-bezel 2 is made of plastic. It should be noted that the use of ABS is recommended, since the adhesive adheres to it without the need for any special treatment. On the other hand, materials such as teflon, polyethylene or polypropylene require special preparations (baths, corona treatment, etc.) so as to make the surface of the material reactive in the presence of glue.
  • the cap thus described could, if need be, dress a bezel without the latter being modified with a view to such a covering. In most cases, however, it is preferable to reduce the radial dimensions of the middle part somewhat so that the dress watch has the same appearance as that which it presented without the cap. In this case, the cover could not be extended to the bottom of the middle as shown in FIGS. 2a to 2c, this cover stopping against a flange forming part of the middle.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Closures For Containers (AREA)
  • Casings For Electric Apparatus (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Electric Clocks (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP89112743A 1988-07-19 1989-07-12 Boîte de montre recouverte d'une coiffe collée à la carrure Withdrawn EP0351706A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2762/88 1988-07-19
CH2762/88A CH674604B5 (zh) 1988-07-19 1988-07-19

Publications (1)

Publication Number Publication Date
EP0351706A1 true EP0351706A1 (fr) 1990-01-24

Family

ID=4241043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112743A Withdrawn EP0351706A1 (fr) 1988-07-19 1989-07-12 Boîte de montre recouverte d'une coiffe collée à la carrure

Country Status (8)

Country Link
US (1) US4999823A (zh)
EP (1) EP0351706A1 (zh)
JP (1) JPH02112791A (zh)
KR (1) KR900002141A (zh)
CN (1) CN1039489A (zh)
AU (1) AU615862B2 (zh)
BR (1) BR8903529A (zh)
CH (1) CH674604B5 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0869414A1 (fr) * 1997-04-03 1998-10-07 Conseils et Manufactures VLG SA Boíte de montre
EP2887155A1 (fr) 2013-12-19 2015-06-24 The Swatch Group Management Services AG Boîte de montre en matiere plastique habillée de deux demi-coques métalliques
WO2021058213A1 (fr) * 2019-09-24 2021-04-01 Eta Sa Manufacture Horlogère Suisse Dispositif de connexion carrure-corne pour une montre

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH671671B5 (zh) * 1988-03-23 1990-03-30 Ebauchesfabrik Eta Ag
US6053631A (en) * 1992-11-19 2000-04-25 Createc Patent Holding S.A. Plastic case with a support body for an electronic device
DE29602151U1 (de) * 1996-02-08 1996-03-28 Leibold, Paul, 72459 Albstadt Uhr, insbesondere Armbanduhr
WO2005116781A1 (fr) * 2004-05-31 2005-12-08 Gang Hao Montre-reveil
EP3106929A1 (fr) * 2015-06-16 2016-12-21 Nivarox-FAR S.A. Pièce à surface de soudage améliorée
CN107598486B (zh) * 2017-08-29 2019-11-26 惠州市好得高精密五金有限公司 一种在手表表壳上包金的方法
EP3958069B1 (fr) * 2020-08-18 2024-06-12 The Swatch Group Research and Development Ltd Boîte de montre munie d'un élément d'habillage
USD960020S1 (en) * 2021-07-30 2022-08-09 Xiaoming Qin Protective case for a watch
USD981888S1 (en) * 2021-12-07 2023-03-28 Xu Huang Watch case
USD981887S1 (en) * 2021-12-14 2023-03-28 Xu Huang Watch case

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH307046A (de) * 1952-07-05 1955-05-15 Staedeli Robert Uhrgehäuse.
CH506826A (fr) * 1968-11-25 1970-10-30 Georges Ruedin S A Boîte de montre
CH517963A (fr) * 1960-10-05 1972-02-29 Schlup & Cie S A Boîte de montre
DE3115737A1 (de) * 1980-04-24 1982-02-25 Citizen Watch Co., Ltd., Tokyo Verbindungsstruktur zwischen einem frontring und einem uhrengehaeuse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH646030GA3 (zh) * 1981-05-22 1984-11-15
CH667566GA3 (zh) * 1987-02-25 1988-10-31

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH307046A (de) * 1952-07-05 1955-05-15 Staedeli Robert Uhrgehäuse.
CH517963A (fr) * 1960-10-05 1972-02-29 Schlup & Cie S A Boîte de montre
CH506826A (fr) * 1968-11-25 1970-10-30 Georges Ruedin S A Boîte de montre
DE3115737A1 (de) * 1980-04-24 1982-02-25 Citizen Watch Co., Ltd., Tokyo Verbindungsstruktur zwischen einem frontring und einem uhrengehaeuse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEUE UHRMACHER-ZEITUNG, vol. 23, 28 février 1969, pages 14-16, Ulm, DE; G. SCHINDLER: "Neue Technologie - Kleben in der Uhrentechnik" *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0869414A1 (fr) * 1997-04-03 1998-10-07 Conseils et Manufactures VLG SA Boíte de montre
EP2887155A1 (fr) 2013-12-19 2015-06-24 The Swatch Group Management Services AG Boîte de montre en matiere plastique habillée de deux demi-coques métalliques
US9483024B2 (en) 2013-12-19 2016-11-01 The Swatch Group Management Services Ag Plastic watch case covered with two metallic half shells
RU2666579C2 (ru) * 2013-12-19 2018-09-11 Те Суоч Груп Менеджмент Сервисиз Аг Пластиковый корпус наручных часов, закрытый двумя металлическими полукожухами
WO2021058213A1 (fr) * 2019-09-24 2021-04-01 Eta Sa Manufacture Horlogère Suisse Dispositif de connexion carrure-corne pour une montre

Also Published As

Publication number Publication date
CH674604B5 (zh) 1990-12-28
CH674604GA3 (zh) 1990-06-29
CN1039489A (zh) 1990-02-07
KR900002141A (ko) 1990-02-28
AU615862B2 (en) 1991-10-10
AU3818889A (en) 1990-01-25
JPH02112791A (ja) 1990-04-25
US4999823A (en) 1991-03-12
BR8903529A (pt) 1990-03-13

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