EP3404494A1 - Armbanduhrengehäuse - Google Patents

Armbanduhrengehäuse Download PDF

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Publication number
EP3404494A1
EP3404494A1 EP17171407.4A EP17171407A EP3404494A1 EP 3404494 A1 EP3404494 A1 EP 3404494A1 EP 17171407 A EP17171407 A EP 17171407A EP 3404494 A1 EP3404494 A1 EP 3404494A1
Authority
EP
European Patent Office
Prior art keywords
seal
watch case
elements
covering
lining
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
EP17171407.4A
Other languages
English (en)
French (fr)
Inventor
Guillaume THEVENIN
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.)
MB and F SA
Original Assignee
Mb & F Holding 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 Mb & F Holding SA filed Critical Mb & F Holding SA
Priority to EP17171407.4A priority Critical patent/EP3404494A1/de
Priority to PCT/EP2018/062106 priority patent/WO2018210674A1/fr
Publication of EP3404494A1 publication Critical patent/EP3404494A1/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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • 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

Definitions

  • the present invention relates to the field of watchmaking. It relates, more particularly, a waterproof watch case.
  • a conventional watch case consists of a plurality of trim elements (middle, bottom, ice, etc.) assembled together to form a housing. Each interface between two of these elements has a potential path for infiltration of moisture or dust, and these junctions are typically sealed by means of simple seals, glue or welding. These seals are typically ring-shaped, but other shapes are suitable for non-circular watches.
  • a typical construction ensures that each interface exists between two elements exclusively, in order to simplify the task of sealing the housing.
  • gaskets instead of welding or gluing, since it is difficult to perform a takeoff or desoldering such an interface without risk of damaging the elements of dressing in question.
  • This piece comprises a watch case 1 of complex shape, comprising several windows 3, 5 located on several sides of the box 1.
  • each ice cream 3, 5 presents only one interface with another component of the covering, in particular the middle part 7.
  • the front window 3 and the upper window 5 are thus each surrounded by a unitary element of the middle part, of which an arch-shaped part 9 is common to the two windows 3, 5.
  • a first single seal surrounding the front window 3 and a second single seal surrounding the top window 5 can seal the box 1.
  • the arch-shaped element 9 is not integral with the middle part 7, and is an insert serving as a glue support, the sealing of both ice creams. thus being ensured by glue. Disassembly of the box is thus made very difficult, and may damage the elements of dressing as mentioned above.
  • the object of the invention is therefore to provide a watch case in which the aforementioned defects are at least partially overcome.
  • the invention relates to a watch case as defined in the independent claim.
  • This watch case comprises at least three distinct cladding elements, each of these cladding elements being adjacent to the other two, as well as a seal arranged to seal between said cladding elements.
  • said seal comprises a one-piece seal of three-dimensional shape, said seal being adapted to seal both between said first and second covering elements, between said second and third cladding elements, and between said first and third cladding elements.
  • said lining comprises a first portion arranged to seal between the first and second cladding elements, a second portion arranged to seal between the first and third cladding elements, and a third portion arranged to seal between the second and third cladding elements. Since each part of the liner is dedicated to a particular junction between two elements, sealing is reliably ensured.
  • said liner advantageously comprises at least two "T” or "Y” -shaped junctions between at least three parts that comprise said lining.
  • said first covering element is a first half-case
  • said second covering element is a second half-case, said half-squares forming together a case.
  • said third covering element is an ice positioned on a side wall of the assembly formed by said first half-middle and said second half-middle.
  • said lining comprises first and second portions which have respective portions that intersect almost tangentially in the region of their junction. This seals a bottom to a middle, and a side window that extends to the bottom, without having to provide separate grooves and insulated for two conventional seals.
  • the grooves can communicate with each other, which allows to build a compact watch case.
  • said first covering element may be a bottom or an upper mirror (that is to say located on the dial side of the box), said second covering element may be a middle part, and said third element can be a side ice.
  • the invention also relates to a timepiece comprising a watch case as defined above.
  • the figures 2 and 3 schematically illustrate a watch case 1 according to the invention.
  • the watch case 1 of this embodiment is formed of a plurality of trim elements, a first 11 is a lower middle half, a second 13 is an upper middle half, and a third 15 is a side mirror.
  • these covering elements 11, 13, 15 have been schematically represented in simple square shapes, but they may take any form according to the wishes of the manufacturer.
  • the crystal 15 In its assembled state ( figure 2 ), the crystal 15 is located on a lateral face of the box 1, and therefore has an interface with each of the half-squares 11, 13. Moreover, the half-squares 11, 13 also have an interface between them. More generically, each of said three cladding elements 11, 13, 15 has a junction, and therefore an interface, with each of the other two elements. That said, it would thus be impossible to seal all of these three covering elements 11, 13, 15 through conventional seals, since in places where there is a junction which is common to three elements 11, 13, 15 at a time, no known single seal prevents the penetration of moisture.
  • the half-squares 11, 13 may be made of opaque or transparent material, such as metal, ceramic, glass, sapphire, polymer, resin-impregnated carbon fibers, or any other suitable material.
  • the invention proposes the use of a trim 17 of three-dimensional shape, which is represented on the figure 4 .
  • This lining comprises a first portion 17a dedicated to the seal between the first and second cladding elements 11, 13, that is to say between the two half-squares 11, 13.
  • a second portion 17b seals the l interface between the first and third cladding elements 11, 15, and a third portion 17c performs the same function between the second and third members 13, 15.
  • the section of the liner 17 illustrated is circular, but it could also be oval , square, rectangular, polygonal, or any other suitable form.
  • the first portion 17a of the liner 17 is in a first plane defined by the interface between the first and second cladding elements 11, 13, and said second and third portions 17b, 17c are in a second plane forming a non-zero angle with said first plane, including an angle of 90 ° in the case.
  • the parts 17a, 17b, 17c of the lining are planar; they can follow curves or other complex shapes according to the wishes of the manufacturer, if he wants to confer a more complex shape to the watch case 1.
  • the lining forms a "T", which ensures the sealing of this critical point, without requiring glue.
  • the seal 17 is located in corresponding grooves 19a, 19b provided for this purpose in each of the first 11 and second 13 cladding elements.
  • An additional groove may also be provided on the third cladding element 15 if necessary, but it is not mandatory that each element 11, 13, 15 has a groove, since a lining housed in a groove so that projecting from the latter may cooperate with a flat surface to seal the junction between the elements in question.
  • the half-squares 11, 13 are assembled to one another via a plurality of screws 21, but it is also possible to secure the half-frames 11, 13 to one another by other means.
  • bayonet fastening systems by screwing one of the elements on the other, or by any other appropriate means.
  • the ice 15 is also screwed onto each of the adjacent elements 11, 13 via screws 23.
  • other fastening systems are possible, such as notches or grooves forming part of the two half-squares 11, 13, and which are adapted to hold the ice in position.
  • the second covering element 13, that is to say the upper middle half, is provided with a housing 27 on one of its faces.
  • a fourth dressing element 25 which may be, for example, an additional mirror, a decorative element, or the like.
  • the tightness of the junction between the elements concerned is ensured by means of a conventional seal 29.
  • the watch case 1 defines a housing 31 intended to house a watch movement of any type (not shown).
  • the figure 5 illustrates a variant of a lining 17 adapted to another form of watch case 1.
  • the second and third parts 17b, 17c of the liner 17 make a non-zero angle between them, and their junctions with the first part 17a are therefore in the form of "Y".
  • This form of lining 17 is therefore suitable for a situation in which the third covering element 15 has a "V" section, the lateral faces of the first 11 and second 13 lining elements having a shape arranged to conform to the shape of the third covering element 15.
  • FIGS. 6 to 8 illustrate another embodiment of a watch case 1 according to the invention.
  • the first covering element 11 is a transparent or opaque background of conventional shape, which is mounted in a conventional manner on the second covering element 13.
  • the latter takes the form of a cylindrical middle part 13 which defines a housing 31 for a watch movement.
  • the middle part can also be transparent or opaque.
  • the third covering element 15 is mounted by means of screws 23.
  • the latter is again a side window 15, and a corresponding opening 33 is provided in the side wall of the middle part 13 in order to mount a dial, or to make the movement visible.
  • the lining 17 (see also figure 8 ) is formed of a first portion 17a located in a groove 19c provided in the bottom, which ensures the seal between the bottom 11 and the middle part 13, and a second portion 17b housed in a groove 19d provided in the middle part 13. This second part seals between the middle part 13 and the crystal 15.
  • the first part 17a and the second part 17b are thus in two different planes forming a non-zero angle with respect to each other, the parts 17a, 17b represent two loops which intersect almost tangentially in the region of their junction 17d.
  • junction 17d between these two parts 17a, 17b is on a tangent to circles defined by each part 17a, 17b (for example circles in the middle of each part 17a, 17b or other circles encompassed by the parts 17a, 17b and which allow the latter to merge), and indeed represents two "Y” deformed (or a "X” deformed). It is the compression of this junction between said parts 17a, 17b which seals between the bottom 11, the middle 13, and the side window 15 at the same time.
  • This arrangement allows positioning the opening 33 closer to the bottom 11 as possible with the use of conventional gaskets.
  • one possibility would be to provide a closed-loop groove for housing a seal ensuring the seal between the window 15 and the middle part 13.
  • the groove 19c housing the seal ensuring the seal between the bottom 11 and the middle part 13 must be positioned so that it does not communicate with the opening of the groove 19d.
  • Each of these two possibilities ensures that each liner cooperates with only two lining elements 11, 13, 15, and imposes limiting conditions on the positioning of at least one of the grooves 19c, 19d.
  • the lining 17 according to the invention can seal the three cladding elements 11, 13, 15 at a time, and allows the groove 19d of the to communicate with that of the bottom 19c when the box 1 is in assembled state.
  • trim element 11 being an upper glass, intended to be located on the visible side of the room when worn by a user.
  • FIG 9 schematically illustrates yet another variant of a watch case 1 according to the invention, of which exclusively the three covering elements 11, 13, 15 and the lining 17 have been represented. Note also that the grooves necessary to accommodate the liner 17 have not been shown here, but those illustrated on the figure 1 may be used, mutatis mutandis .
  • the first 11 and second 13 trim elements are half-squares, as in the variant of FIG. figure 1 , and together form a box in assembled condition.
  • the third covering element is a crown-rod assembly 15 serving for reassembling and / or controlling the functions of the movement (not illustrated), the assembly comprising a crown 15a and a rod 15b.
  • the rod 15a enters the housing formed by all the half-squares 11, 13 at the interface between the latter, and extends along an opening defined by corresponding grooves 35a, 35b provided in each half-shoulder 11, 13. These grooves 35a, 35b have been shown schematically.
  • the first part 17a of the gasket 17 serves to seal the interface between the two half-squares 11, 13, and the second 17b and third 17c portions serve to seal between the rod 15b and the two half-squares 11 13.
  • the opening formed between the second 17b and third 17c parts of the liner has been exaggerated to make visible the passage for the rod.
  • these parts 17b, 17c are actually shaped so that they are in intimate contact with the rod 15b, in order to make the crown-rod assembly 15 tight with respect to the half-squares 11, 13. , the three covering elements 11, 13, 15 are sealed by means of a single lining 17.
  • the described embodiments can be combined in any manner that makes the technical sense, by providing several additional parts of the liner 17 to seal even more additional trim elements.
  • the same lining 17 may comprise a structure of quasi-tangential rings as in the embodiment of the Figures 6 to 8 , as well as a structure like that of Figures 1 to 4 , to which may be added a structure according to the variant of the figure 9 .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
EP17171407.4A 2017-05-16 2017-05-16 Armbanduhrengehäuse Pending EP3404494A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17171407.4A EP3404494A1 (de) 2017-05-16 2017-05-16 Armbanduhrengehäuse
PCT/EP2018/062106 WO2018210674A1 (fr) 2017-05-16 2018-05-09 Boite de montre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17171407.4A EP3404494A1 (de) 2017-05-16 2017-05-16 Armbanduhrengehäuse

Publications (1)

Publication Number Publication Date
EP3404494A1 true EP3404494A1 (de) 2018-11-21

Family

ID=58715005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17171407.4A Pending EP3404494A1 (de) 2017-05-16 2017-05-16 Armbanduhrengehäuse

Country Status (2)

Country Link
EP (1) EP3404494A1 (de)
WO (1) WO2018210674A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH500530A (de) * 1968-04-18 1970-08-31 Ruhla Uhren Veb K Feuchtigkeits- und staubgeschütztes Wanduhrgehäuse
US3706198A (en) * 1970-11-28 1972-12-19 Suwa Seikosha Kk Sealing structure in a waterproof watch
CH556567A (de) * 1971-11-23 1974-11-29

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH647916GA3 (de) * 1981-08-25 1985-02-28

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH500530A (de) * 1968-04-18 1970-08-31 Ruhla Uhren Veb K Feuchtigkeits- und staubgeschütztes Wanduhrgehäuse
US3706198A (en) * 1970-11-28 1972-12-19 Suwa Seikosha Kk Sealing structure in a waterproof watch
CH556567A (de) * 1971-11-23 1974-11-29

Also Published As

Publication number Publication date
WO2018210674A1 (fr) 2018-11-22

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