• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The decorative object according to the invention, in particular a watch glass, comprises an upper window (2), a lower window (3), a recessed pattern (8) formed in the lower window (3) in front of the window. upper ice (2), a liquid (10) filling the hollow pattern (8), the refractive index of the liquid (10) being equal to that of the lower ice (3) or different from that of the lower ice ( 3) of at most 10%, and solid elements (11) movable in the liquid (10).
    公开号:CH712113A1
    申请号:CH00185/16
    申请日:2016-02-12
    公开日:2017-08-15
    发明作者:Husson Rémi；Chevallier Gabriel；Moyse Romain
    申请人:Cartier Int Ag；
    IPC主号:
    专利说明:

    Description: [0001] The present invention relates to a decorative object that can act as watch glass, and more particularly to a decorative object producing an optical effect.
    There are in the state of the art watches whose ice, through which is visible the dial, contains a liquid containing particles in suspension. Such a mirror gives an attractive side to the watch but the optical effect is quite limited.
    The present invention aims to create a particular optical effect and proposes for this purpose a decorative object, in particular a watch glass, comprising: - an upper ice - a lower ice - a hollow pattern formed in the ice lower, in front of the upper ice, - a liquid filling the hollow pattern, the refractive index of the liquid being equal to that of the ice less than or different from that of the ice less than 10%, preferably at most 5%, more preferably at most 2%, and - moving solid elements in the liquid.
    Such a decorative object allows the display of a pattern in a mysterious manner, by movable solid elements such as balls, without the walls of the hollow pattern in which these balls are circulating are visible.
    In exemplary embodiments, the upper ice and the lower ice define between them an internal cavity on which is open the hollow pattern.
    Preferably, the liquid completely fills the hollow pattern and the internal cavity.
    The height of the internal cavity may be large enough that the solid elements can completely out of the hollow pattern.
    Conversely, the height of the internal cavity may be small enough that the solid elements can not completely out of the hollow pattern.
    Typically, the hollow pattern comprises channels communicating with each other in the lower window.
    Advantageously, the upper window is made of a material that is harder than the material of the lower window. This hardness gives it a better scratch resistance, which is an advantage in the case where the upper glass is in contact with the outside of the watch.
    The upper ice is for example sapphire and the lower ice is for example borosilicate.
    Other features and advantages of the present invention will appear on reading the following detailed description given with reference to the accompanying drawings in which: FIG. 1 is a half-perspective view of a watch crystal according to a preferred embodiment of the invention; figs. 2 and 3 are schematic top views of the watch crystal according to the preferred embodiment of the invention; in fig. 2, however, one of the constituents of the watch ice, namely a liquid in which mobile moving elements are moving, is absent.
    In the context of the present invention, the terms "lower" and "upper" are defined with reference to the position of the watch glass as illustrated in FIG. 1. "Ice" means any plate made of at least partially transparent material and preferably completely transparent and colorless.
    [0014] Referring to FIG. 1, a watch glass 1 according to a preferred embodiment of the invention comprises an upper window 2 and a lower window 3 held together by a frame or ring 4, typically metallic. The watch crystal 1 may constitute the ice of a watch case through which is visible the dial of the watch, or an auxiliary ice located under a main window of the watch case. The watch glass 1 may also, alternatively, serve as a transparent background to the watch case. Each of the upper and lower windows 2, 3 is fixed, for example driven, soldered or welded, in the ring 4, possibly with a seal 5, 6 between the ice 2, 3 and the ring 4. The ring 4 is intended to be attached to a part of the watch case such as the middle part.
    The upper ice 2 and the lower ice 3 are spaced apart by a distance d so as to form between them an internal cavity 7 whose two main walls are the lower face 2a of the upper ice 2 and the upper face 3a of the lower ice 3. The upper face 3a of the lower ice 3 is etched to form a hollow pattern 8 open on the internal cavity 7. The recessed pattern 8 is preferably in the form of channels 9 communicating with each other in the ice lower 3. The inner cavity 7 - recessed pattern 8 forms a closed space, preferably sealed. In the example shown, the main faces of the upper ice 2 and the lower ice 3 are flat but they could have another shape. For example, the lower face 2a and the upper face 2b of the upper window 2 could respectively be hollow and curved.
    The inner cavity 7 and the recessed pattern 8 are filled, preferably entirely to avoid air bubbles, a liquid 10 containing balls 11 or other mobile solid elements. The liquid 10 is at least partially transparent, and preferably completely transparent and colorless. Its refractive index is equal to that of the lower ice 3 or sufficiently close to that of the lower ice 3 so that the pattern 8 is substantially invisible. More precisely, the refractive index of the liquid 10 is equal to that of the lower ice 3 or differs from (is less than or greater than) that of the lower ice 3 by at most 10%, preferably by at most 5. %, more preferably at most 2%. The expression "refractive index", in the context of the present invention, means a refractive index measured at a wavelength of 700 nm, at a temperature of 20 to 25 ° C. and at atmospheric pressure. . Thanks to this refractive index of the liquid 10 substantially equal to that of the lower glass 3, the pattern 8 is substantially invisible without the need to polish the upper face 3a of the lower window 3 and the walls of the recessed pattern 8 (which can have a complex geometry). Indeed, the liquid 10 in contact with the lower ice 3 and said walls fills the surface roughness.
    [0017] Preferably, the watch crystal 1 also comprises a device (not shown) for compensating the thermal expansion of the liquid 10 in order to compensate for variations in the volume of the liquid related to the temperature. This device can take different forms, such as a flexible membrane as disclosed in the patent application WO 2015/150 910.
    The lower ice 3 is for example borosilicate material that is well suited to etching and having a refractive index of 1.47. In this case, the liquid 10 has a refractive index which is approximately 1.47. The upper window 2 is for example sapphire (refractive index: 1.76), a material that is more suitable for an outer part of a watch case because it is hard and scratch-resistant. The liquid is, for example, glycerin or a mineral oil, preferably a mineral oil.
    The balls 11 are for example gold. They are suspended in the liquid when it is agitated. They can be deposited in the pattern 8 and move according to the orientation of the watch under the effect of the gravitational force. The balls 11 can in particular move in the channels 9 and pass from one channel 9 to the other inside the lower window 3. In an exemplary embodiment, the distance d separating the upper and lower windows 2, 3 , corresponding to the height of the internal cavity 7, is greater than the diameter of the balls 11 so that the balls 11 can also flow freely in the internal cavity 7 between the upper and lower windows 2, 3. In another example of realization, the distance or height d is smaller than the diameter of the balls 11 so that they can not penetrate entirely into the internal cavity 7 and therefore remain in the pattern 8 and its channels 9.
    The present invention thus produces a mysterious optical effect since we see only the pattern as drawn by the balls 11, the channels 9 or more generally the walls of the pattern 8 are not visible. By way of illustration, FIG. 2 shows the watch glass 1 with the balls 11 but without the liquid 10. The channels 9 of the pattern 8 are visible there. In fig. 3 is represented the watch glass 1 with the balls 11 and the liquid 10. The channels 9 of the pattern 8 are invisible there. Pattern 8 can have any desired shape.
    According to particular embodiments: - the balls 11 have a minimum diameter of 0.1 mm, for example about 0.5 mm; the balls 11 must not be too small, so as not to slow down the animation, nor must they be too big, so as not to increase the size of the watch crystal 1; - In the case of a distance d between the upper and lower windows 2, 3 sufficient to allow the balls 11 to flow freely in the internal cavity 7, said distance d is at least 0.2 mm plus the diameter of the balls 11, for example 0.75 mm, this game allowing easier movement of the balls 11; - In the case of a distance d between the upper and lower windows 2, 3 insufficient to allow the balls 11 to flow in the internal cavity 7, said distance d is at most the diameter of the balls 11 minus 0.2 mm for example 0.3 mm; indeed, a distance d too close to the diameter of the balls 11 would increase the risk of jamming of the balls 11 between the windows 2, 3; - The height of the pattern 8 and its channels 9 is at least 0.2 mm plus the diameter of the balls 11, for example 0.75 mm; the width of the channels 9 is at least 0.2 mm plus the diameter of the balls 11, and varies for example between 1.3 and 2.5 mm; the verticality of the walls of the channels 9 is at least 60 ° and preferably 90 °, that is to say maximum; in the case where the balls 11 can circulate in the internal cavity 7, the verticality of the walls of the channels 9 controls the exit angle of the balls 11; the verticality must, however, be large enough to allow the balls 11 to represent the desired pattern accurately; preferably, the walls have chamfers (not visible in the drawings) at the outlet of the channels 9, for example oriented at 45 ° and a height of 0.1 to 0.2 mm.
    The watch crystal 1 according to the preferred embodiment of the invention can be assembled in the following manner: 1) fixing the lower window 3 in the ring 4, 2) deposition of the balls 11 on the upper face, engraved, 3a of the lower ice 3 and in particular in the pattern 8,
    权利要求:
    Claims (12)
    [1]
    3) fixing the upper window 2 in the ring 4, 4) filling the internal cavity 7 and the pattern 8 by injection or suction of the liquid 10 through a radial hole (not shown) passing through the ring 4 and communicating the cavity internal 7 with the outside, 5) closing the radial hole with a sealing screw or other form of plug, 6) cleaning with soapy water of the assembly to remove traces of residual liquid. If the distance d between the upper and lower windows 2, 3 is sufficiently large, the balls 11 can be introduced into the internal cavity 7 by the aforementioned radial hole with the liquid 10 instead of being deposited on the upper face. 3a of the lower ice 3 as indicated in point 2). As described above, the watch crystal 1 according to the invention preferably comprises the internal cavity 7 to facilitate the filling of the pattern 8 and its channels 9. However, it is also possible to consider removing this internal cavity 7 , that is to say, to make the distance of zero. Because the channels 9 communicate with each other, the filling of the pattern 8 could be performed via a filling hole communicating one of the channels 9 with the outside. It is also possible to fill the pattern 8 from the upper face 3a of the lower window 3 before mounting the upper window 2. [0025] Moreover, in variants of the invention, the upper and lower windows 2, 3 could be connected in a monolithic way. In other words, the watch glass according to the invention could be in one piece, the upper window being constituted by an upper part of the room and the lower window being constituted by a lower part of the room. In this case, the watch glass could be hunted in a bezel or middle-bezel of the watch case. An example of a technique that makes it possible to produce such a monolithic watch ice-cream is to modify the density of an internal zone of a transparent material by means of a femtosecond laser and then to remove the affected zone by immersing the material in a solution. engraving. The laser only changes the density of the material at the focal point of the laser beam so that it is possible to dig or etch an inner area of the material very precisely. Finally, it will be clear to those skilled in the art that the present invention could be applied to objects other than a watch glass and that the object illustrated in the figures could constitute for example a jewel or a part of jewel. claims
    1. Decorative object (1) comprising: - an upper window (2), - a lower window (3), - a recessed pattern (8) formed in the lower window (3), in front of the upper window (2) ), a liquid (10) filling the hollow pattern (8), the refractive index of the liquid (10) being equal to that of the lower ice (3) or different from that of the lower ice (3) d at most 10%, and - solid elements (11) movable in the liquid (10).
    [2]
    2. Decorative object according to claim 1, wherein the refractive index of the liquid (10) is equal to that of the lower ice (3) or differs from that of the lower ice (3) by at most 5%.
    [3]
    Decorative article according to claim 2, wherein the refractive index of the liquid (10) is equal to that of the lower ice (3) or differs from that of the lower ice (3) by at most 2%.
    [4]
    4. Decorative object according to one of claims 1 to 3, wherein the upper window (2) and the lower window (3) define between them an internal cavity (7) on which is open the recessed pattern (8).
    [5]
    The decorative object according to claim 4, wherein the liquid (10) completely fills the recessed pattern (8) and the internal cavity (7).
    [6]
    6. Decorative object according to claim 4 or 5, wherein the height (d) of the inner cavity (7) is large enough that the solid elements (11) can completely out of the recessed pattern (8).
    [7]
    The decorative object according to claim 4 or 5, wherein the height (d) of the inner cavity (7) is sufficiently small so that the solid elements (11) can not completely exit the recessed pattern (8).
    [8]
    8. decorative object according to one of claims 1 to 7, wherein the recessed pattern (8) comprises channels (9) communicating with each other in the lower window (3).
    [9]
    9. decorative object according to one of claims 1 to 8, wherein the solid elements (11) are balls.
    [10]
    10. Decorative object according to one of claims 1 to 9, wherein the upper window (2) is made of a material harder than the material of the lower window (3).
    [11]
    11. Decorative object according to claim 10, wherein the upper ice (2) is sapphire and the lower ice (3) is borosilicate.
    [12]
    12. Decorative object according to one of claims 1 to 11, consisting of a watch window.
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    同族专利:
    公开号 | 公开日
    CH712113B1|2019-10-31|
    EP3414108B1|2020-11-04|
    US10976707B2|2021-04-13|
    US20190041800A1|2019-02-07|
    JP2019510966A|2019-04-18|
    CN108778774B|2021-07-09|
    CN108778774A|2018-11-09|
    WO2017137915A1|2017-08-17|
    EP3414108A1|2018-12-19|
    JP6925353B2|2021-08-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2125991A|1982-08-25|1984-03-14|Tak Lam Philip Yung|Watch glass and watch|
    DE8701203U1|1987-01-26|1987-07-23|Mang, Georg|
    EP0373804A2|1988-12-12|1990-06-20|Philip Yung Tak Lam|A timepiece dial assembly and timepiece|
    JP2009085758A|2007-09-28|2009-04-23|Rhythm Watch Co Ltd|Transmission device|
    WO2016004540A1|2014-07-09|2016-01-14|Richemont International Sa|Optical method for making at least one component of a watch movement invisible|EP3940462A1|2020-07-14|2022-01-19|Cartier International AG|Decorative object|US1850190A|1924-08-22|1932-03-22|Horace H Welch|Composite gem and jewel|
    GB2227581B|1988-12-06|1992-09-02|Lam Philip Y T|A timepiece glass assembly and a timepiece|
    DE602005010988D1|2005-06-14|2008-12-24|Rado Montres Sa|Housing closed by a glass with invisible connection or decorating possibility, and manufacturing method thereof|
    JP2008122162A|2006-11-09|2008-05-29|Seiko Epson Corp|Timepiece dial and timepiece|
    WO2008072605A1|2006-12-15|2008-06-19|Seiko Epson Corporation|Dial plate for watch, and watch|
    WO2015150910A2|2014-04-03|2015-10-08|Preciflex Sa|Systems and methods for absorption/expansion/contraction/movement of a liquid in a transparent cavity|DE102018133485B3|2018-12-21|2019-11-28|CAPOLAVORO GmbH|Decorating device and method for producing a decoration device|
    EP3699695A1|2019-02-25|2020-08-26|Comadur S.A.|Multi-decor and/or multi-colour clock piece component with ceramic structure|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH1852016A|CH712113B1|2016-02-12|2016-02-12|Decorative object, in particular watch glass, with optical effect.|CH1852016A| CH712113B1|2016-02-12|2016-02-12|Decorative object, in particular watch glass, with optical effect.|
    JP2018542132A| JP6925353B2|2016-02-12|2017-02-09|Ornaments with optical effects, especially watch glass|
    PCT/IB2017/050703| WO2017137915A1|2016-02-12|2017-02-09|Decorative object, in particular a watch crystal, with optical effect|
    US16/076,450| US10976707B2|2016-02-12|2017-02-09|Decorative object, in particular watch glass, with an optical effect|
    EP17704547.3A| EP3414108B1|2016-02-12|2017-02-09|Decorative object, in particular a watch crystal, with optical effect|
    CN201780011063.9A| CN108778774B|2016-02-12|2017-02-09|Decoration with optical effect, especially watch glass|
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