• 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 invention relates to a watch cylinder (1) comprising a drum (2) with a first spring bearing surface (20) of a spring receiving chamber (4) (4) having a bore (11) for pivotal guidance of a bung (9) and bordered by an inner abutment bearing surface (12) adjacent to a lateral inner wall (5), and by an abutment abutment bearing surface ( 13). Said first spring bearing surface (20) on the side of said chamber (4) has an anti-wear coating, and said bore (11) and / or said first abutment bearing surface (12) and / or said first abutment abutment surface (13) is free of any anti-wear coating, including any DLC coating. The method of producing such a barrel comprises the following steps: one carries out such a drum (2); at least said bore (11) is spared to prevent the action of an anti-wear treatment, in particular a DLC treatment; the whole of said drum (2) is carried out, except for the zone thus spared, an anti-wear treatment, in particular DLC.
    公开号:CH709077B1
    申请号:CH00090/14
    申请日:2014-01-22
    公开日:2018-05-15
    发明作者:Kaeser Sébastien；Nicoud Serge；Röthlisberger Marc
    申请人:Eta Sa Mft Horlogere Suisse；
    IPC主号:
    专利说明:

    Description
    FIELD OF THE INVENTION [0001] The invention relates to a watch cylinder comprising at least one drum for receiving at least one barrel spring wound in a spiral in a chamber partially delimited by a first spring support surface. , and said drum having at least one first bore for pivoting a plug or a shaft, which first bore is bordered on either side, firstly by a first abutment bearing surface. interior adjacent to said first spring support surface and secondly by a first outer abutment bearing surface.
    The invention relates to a watch movement comprising at least one such barrel.
    The invention relates to a timepiece comprising at least one such movement and / or at least one such barrel.
    The invention relates to a method of producing a watch cylinder for its protection against wear under the action of the friction of a spring.
    The invention relates to the field of clockwork comprising springs in friction contact, and more particularly the engine barrels and the ringing barrels.
    BACKGROUND OF THE INVENTION [0006] The barrel is the energy reserve of a mechanical watch. It comprises in particular a drum, cooperating with a gear train, and which is arranged to receive, in an inner chamber, at least one spiral spring which is hooked at its inner end to a shaft or a plug. The receiving chamber of the spring, or springs if there are several, is usually closed by a cover, or directly by the röchet usually coming on the shaft or on the bung.
    This drum, and, depending on the case, this cover or this röchet, can be covered with a treatment DLC "diamond like carbon" or other anti-wear treatment, including PVD coating "physical vapor deposition" or CVD "Chemical vapor deposition", to improve its service life, by reducing the wear on their internal surfaces caused by the friction of the mainspring. The reliability of the product is then also improved.
    [0008] The observation of the holding over time of barrels thus protected shows that, because of the intrinsic properties of such treatments, whether they are superficial or at heart or by coating, projection, or other (and that will hereafter be referred to as "treatments"), premature wear can be created in the pivoting due to the surface and tribological properties of the anti-wear areas, which can alter the pivot axes or the like. SUMMARY OF THE INVENTION [0009] The invention proposes to make barrels that are resistant to wear of springs of any type and that are resistant to wear at the level of pivoting.
    For this purpose, the invention relates to a watch cylinder having at least one drum for receiving at least one barrel spring spirally wound in a chamber partially delimited by a first spring bearing surface, and said drum having at least one first bore for pivotally guiding a plug or shaft, which first bore is bordered on either side by a first internal abutment bearing surface. adjacent to said first spring bearing surface and secondly by a first outer abutment bearing surface, characterized in that at least said first spring bearing surface on the side of said chamber comprises an anti-backing wear to resist wear during friction of said spring, and in that said first bore and / or said first abutment bearing surface and / or said first bearing abutment surface external e are free from wear-resistant coating, for example all DLC coating.
    The invention relates to a watch movement comprising at least one such barrel.
    The invention relates to a timepiece comprising at least one such movement and / or at least one such barrel.
    The invention relates to a method for producing a watch cylinder for its protection against wear under the action of the friction of a spring, characterized in that: - a drum having a first surface is produced; on the side of a spring-receiving chamber, said drum having at least one first bore bordered on either side by a first abutment abutment surface adjacent to a first lateral inner wall that includes the first spring bearing surface, and secondly by a first outer abutment bearing surface: - a spared area is created by sparing at least said first bore and / or said first surface of abutment abutment and / or said first abutment abutment surface to prevent the action of a PVD or CVD coating or anti-wear treatment or DLC treatment on the spared area on at least said first spring support surface on the side of said chamber, except for the spared zone, is carried out a PVD or CVD coating anti-wear treatment or a DLC treatment.
    BRIEF DESCRIPTION OF THE DRAWINGS [0014] Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which: FIG. 1 represents, schematically and in section passing through its pivot axis, a cylinder according to the invention, comprising a drum closed by a cover; fig. 2 represents, schematically and in perspective, the drum of the cylinder of FIG. 1, seen from the outer side opposite the receiving chamber of the mainspring; fig. 3 represents, schematically and in perspective, the barrel of the barrel of FIG. 1, seen from the inside of the receiving chamber of the mainspring; fig. 4 is a diagrammatic perspective view of the barrel cover of FIG. 1, seen from the inside of the receiving chamber of the mainspring; fig. 5 shows schematically in perspective the lid of the barrel of FIG. 1, seen from the outer side opposite the receiving chamber of the mainspring; fig. 6 shows, schematically and in section passing through its pivot axis, the drum of the ba rillet of FIG. 1 equipped with a curing tool and mounted on a holding tool for its anti-wear treatment; fig. 7 shows schematically and in section passing through its pivot axis, the lid of the barrel of FIG. 1 equipped with a curing tool and mounted on a holding tool for its anti-wear treatment; figs. 8 to 10 illustrate, in section passing through their pivot axis, various non-limiting variants of the barrel according to the invention: FIG. 8 with a bung shaft on which the drum pivots and which carries a röchet closing the spring chamber; fig. 9 with a smooth shaft on which the drum pivots and which carries a bung and a drive sleeve of a closing cap of the spring chamber; fig. 10 with a smooth shaft through which rotates the drum, and which carries a bung, and causes a closing lid of the spring chamber; fig. 11 represents, in the form of a block diagram, a timepiece comprising a movement comprising itself a cylinder according to the invention.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention relates to the field of watch mechanisms comprising springs in contact with friction, and more particularly motor barrels and ringing barrels.
    To avoid wear problems at the pivoting, it is necessary to avoid, at the pivot surfaces (shaft bores, bearing faces), anti-wear treatments conferring on the material a high hardness, whether these treatments are heat treatment type or induction, surface treatment, coating, projection, or otherwise, referred to hereinafter indifferently "treatment". More particularly, when, advantageously, the surfaces liable to be in contact with friction with a spring are protected by DLC treatment or the like, it is not possible, according to the invention, to deposit in the pivoting the DLC, or any other PVD / CVD coating (and related processes), this even in limited quantity, providing a seal against the carrier gas during the process of deposition of the layer and underlayment layers.
    The invention thus relates to a watch cylinder 1 having at least one drum 2 for receiving at least one coil spring 3 wound spirally in a chamber 4 partially delimited by a first spring support surface 20. This first spring bearing surface 20 comprises either a first lateral inner wall 5 of the drum 2 facing a wafer 6 of at least one such spring 3, or a peripheral inner surface 7 (at the which the drum 2 generally comprises peripheral attachment means 8 of a spring 3), or else and preferably both this first internal lateral wall 5 and this peripheral internal surface 7. The invention is described more particularly in this embodiment. last alternative, the person skilled in the art will know how to extrapolate it to only one of surfaces 5 or 7.
    The drum 2 comprises at least a first bore 11 for the pivotal guidance of a plug 9 or a shaft 10. This first bore 11 is bordered on both sides, firstly by a first internal abutment bearing surface 12 adjacent to the first lateral inner wall 5, and secondly by a first abutment bearing surface 13.
    According to the invention, at least the first spring bearing surface 20 comprises an anti-wear coating, in particular a DLC coating, to resist wear during the friction of the spring 3, and the first bore 11 and or the first inner abutment bearing surface 12 and / or the first outer abutment bearing surface 13 are free of any anti-wear coating, in particular of any DLC coating.
    In a particular embodiment, the first bore 11 is free of any anti-wear coating and any DLC coating.
    In a particular embodiment, the first inner abutment bearing surface 12 is free of any anti-wear coating and any DLC coating.
    In a particular embodiment, the first outer abutment bearing surface 13 is free of any anti-wear coating and any DLC coating.
    In a particular advantageous embodiment, all of the surfaces of the drum 2 comprises an anti-wear coating or a DLC coating, with the exception of the first bore 11, which is free of any anti-wear coating and any DLC coating. .
    In a particular embodiment, all of the surfaces of the drum 2 comprise an anti-wear coating or a DLC coating, with the exception of the first bore 11 and the first inner abutment bearing surface 12, which are free. any anti-wear coating and any DLC coating.
    In a particularly advantageous embodiment, all of the surfaces of the drum 2 comprise an anti-wear coating or a DLC coating, with the exception of the first bore 11 and the first abutment bearing surface 12 and the first outer abutment bearing surface 13, which are free of any anti-wear coating and any DLC coating.
    The protection mode applied to the drum 2 is applicable to the cover 22 or the röchet 13, as the case, which closes the chamber 4 receiving each spring 3.
    Thus, advantageously, the barrel 1 comprises, for the closure of the chamber 4, the opposite side to the first inner side wall 5, a cover 22 or a röchet 13 having a second spring support surface 30. This second spring support surface 30 comprises in particular a second lateral inner wall 14, opposite to the first lateral inner wall 5. This cover 22 or roche 13 comprises a second bore 15 for the pivotal guidance of such a bung 9 or d such a shaft 10, or a socket 16, according to the configuration of the barrel 1.
    And at least the second spring support surface 30, in particular the surface of the second lateral inner wall 14 on the side of the chamber 4, comprises an anti-wear coating or a DLC coating to resist wear during friction of a spring 3.
    In a particular embodiment, this second bore 15 is free of any anti-wear coating and any DLC coating.
    This lid 22 or röchet 13 closing the chamber 4 preferably comprises, adjacent firstly to the second spring bearing surface 30, in particular to the second lateral inner wall 14, and secondly to the second bore 15, a second abutment bearing surface 17.
    Similarly, the lid 22 or the röchet 13 closing the chamber 4 comprises, adjacent to the second bore 15 and opposite the chamber 4, a second bearing surface of the outer abutment 18.
    According to the invention, this second bore 15 and / or the second abutment abutment surface 17 and / or this second abutment abutment surface 18 is free or free of any anti-wear and anti-wear coating. any DLC coating.
    In a particular embodiment, this second bore 15 is free of any anti-wear coating and any DLC coating.
    In a particular embodiment, the second abutment abutment surface 17 is preferably free of any anti-wear coating and any DLC coating.
    In a particular embodiment, the second outer abutment bearing surface 18 is advantageously free of any anti-wear coating and any DLC coating.
    In a particular embodiment, all of the surfaces of the cover 22 or the röchet 13 closing the chamber 4 comprises an anti-wear coating or a DLC coating, with the exception of the second bore 15, which is free of any anti-coating. wear and any DLC coating.
    权利要求:
    Claims (24)
    [1]
    In a particular embodiment, all of the surfaces of the cover 22 or the röchet 13 closing the chamber 4 comprises an anti-wear coating or a DLC coating, with the exception of the second bore 15 and the second bearing surface. 17, which are free of any anti-wear coating and any DLC coating. In a particular embodiment, all of the surfaces of the cover 22 or the röchet 13 closing the chamber 4 comprises an anti-wear coating or a DLC coating, with the exception of the second bore 15 and the second bearing surface. inner abutment 17 and the second abutment abutment surface 18, which are free of any anti-wear coating and any DLC coating. The invention also relates to a watch movement 100 comprising at least one such barrel 1. [0040] The invention also relates to a timepiece 200 comprising at least one such movement 100 and / or at least one such movement. barrel 1. [0041] The invention also relates to a method of producing a watch cylinder 1 for its protection against wear under the action of the friction of a spring. According to this method: - a drum 2 is made comprising a first spring bearing surface 20, the drum 2 comprising at least a first bore 11 bordered on either side, firstly by a first bearing surface an inner abutment 12 adjacent to the first spring abutment surface 20, and secondly a first abutment abutment surface 13; at least the first bore 11 is spared in order to prevent the action of an anti-wear treatment by PVD or CVD coating or of a DLC treatment; on the whole of the drum 2, except for the zone thus spared, an anti-wear treatment is carried out by PVD or CVD coating or a DLC treatment. In a particular implementation of this method, during this saving, it also saves the first inner abutment bearing surface 12. In a particular implementation of this method, during this saving, the first outer abutment abutment surface 13 is also spared. [0044] In a particular embodiment of this method, a cover is also made for closing a chamber 4 for receiving at least one spring. 22 or a ratchet 13 having a second spring bearing surface 30 and a second bore 15 bordered on either side by a second abutment abutment surface 17, and secondly by a second outer abutment bearing surface 18, and: - at least the second bore 15 is spared to prevent the action of an anti-wear treatment by PVD or CVD coating or a DLC treatment; - On the whole of the lid 22 or röchet 13 except for the area thus spared, an anti-wear treatment by PVD coating or CVD or DLC treatment. In a particular implementation of this method, during this saving, it also saves the second inner abutment bearing surface 17. In a particular implementation of this method, during this saving, the second outer abutment abutment surface 18 is also spared. [0047] Figs. 6 and 7 illustrate tools for producing the anti-wear treatment, in particular DLC, with means for saving bores and adjacent bearing surfaces: for the drum 2, in FIG. 6, a shoulder ring 35, conductive, in particular brass, is slidably mounted with a bearing surface 37 in the bore 11 of the drum 2, supported by a front surface 36 on the first abutment abutment surface 13. A ring conductive 34 is driven on this shoulder ring 35 and abuts, by a front surface 38, on the first bearing surface of inner abutment 12. The shoulder ring 35 is carried by a conductive support 39 having a conical bearing on which rests a chamfer 351 of the shoulder ring 35. Preferably, the drum 2 is made of brass or the like; similarly, for the lid 22, in FIG. 7, a shoulder ring 30, conductive, in particular brass, is slidably mounted with a bearing surface 32 in the bore 15 of the cover 22, supported by a front surface 31 on the second abutment bearing surface 18. conductor 34 is driven on this shoulder ring 30 and abuts, by a front surface 33, on the second abutment abutment surface 17. The shoulder ring 30 is carried by a conductive support 39 having a conical bearing on which rests a bevel 301 of the shoulder ring 30. Preferably, the lid 2 is brass or the like. claims
    1. A watch cylinder (1) comprising at least one drum (2) for receiving at least one coil spring (3) wound in a spiral in a chamber (4) partially delimited by a first bearing surface of spring (20), and said drum (2) having at least one first bore (11) for pivotal guidance of a plug (9) or shaft (10), which first bore (11) is lined with on the one hand and on the one hand by a first abutment abutment surface (12) adjacent to said first abutment surface (20) and secondly by a first abutment abutment surface outer member (13), characterized in that at least said first spring bearing surface (20) on the side of said chamber (4) has an anti-wear coating to resist wear during friction of said spring (3) , and in that said first bore (11) and / or said first abutment bearing surface (12) and / or lad said first outer abutment bearing surface (13) is free of any anti-wear coating.
    [2]
    2. Barrel (1) according to claim 1, characterized in that said first bore (11) is free of any anti-wear coating.
    [3]
    3. Barrel (1) according to claim 1 or 2, characterized in that said first abutment bearing surface (12) is free of any anti-wear coating.
    [4]
    4. Barrel (1) according to one of claims 1 to 3, characterized in that said first abutment abutment surface (13) is free of any anti-wear coating.
    [5]
    5. Barrel (1) according to claim 2, characterized in that all of the surfaces of said drum (2) comprises an anti-wear coating, with the exception of said first bore (11) which is free of any anti-wear coating .
    [6]
    Barrel (1) according to claim 3, characterized in that all of the surfaces of said drum (2) comprise an anti-wear coating, with the exception of said first bore (11) and said first bearing surface of inner stop (12) which are free of any anti-wear coating.
    [7]
    7. Barrel (1) according to claim 4, characterized in that all of the surfaces of said drum (2) comprises an anti-wear coating, with the exception of said first bore (11) and said first bearing surface of inner abutment (12) and said first abutment abutment (13) which are free of any anti-wear coating.
    [8]
    Barrel (1) according to one of claims 1 to 7, characterized in that said barrel (1) comprises, for the closure of said chamber (4), the opposite side to a first lateral inner wall (5) that comprises the first spring bearing surface (20), a cover (22) or a socket (13) having a second spring bearing surface (30) and having a second bore (15) for pivotally guiding a said plug (9) or a said shaft (10) or a bushing (16), and in that at least the surface of said second spring bearing surface (30) on the side of said chamber (4) has an anti-wear coating to resist wear upon friction of said at least one spring (3), and said second bore (15) is free of any anti-wear coating.
    [9]
    9. Barrel (1) according to claim 8, characterized in that said cover (22) or said röchet (13) closing said chamber (4) comprises adjacent said second spring support surface (30) and said second bore (15), a second abutment abutment surface (17) which is free of any anti-wear coating.
    [10]
    10. Barrel (1) according to claim 8 or 9, characterized in that said cover (22) or said röchet (13) closing said chamber (4) has adjacent said second bore (15) and opposite said chamber (4), a second outer abutment bearing surface (18) which is free of any anti-wear coating.
    [11]
    11. Barrel (1) according to claim 8, characterized in that all of the surfaces of said cover (22) or said röchet (13) closing said chamber (4) comprises an anti-wear coating, except for said second bore (15) which is free of any anti-wear coating.
    [12]
    12. Barrel (1) according to claim 9, characterized in that all the surfaces of said cover (22) or said röchet (13) closing said chamber (4) comprises an anti-wear coating, except said second bore (15) and said second abutment bearing surface (17) which are free of any anti-wear coating.
    [13]
    13. Barrel (1) according to claim 10, characterized in that all of the surfaces of said cover (22) or said röchet (13) closing said chamber (4) comprises an anti-wear coating, except said second bore (15) and said second abutment abutment surface (17) and said second abutment abutment surface (18) which are free of any anti-wear coating.
    [14]
    14. Barrel (1) according to one of claims 1 to 13, characterized in that said antiwear coating is a DLC coating.
    [15]
    15. Watch movement (100) comprising at least one barrel (1) according to one of claims 1 to 14.
    [16]
    16. Timepiece (200) comprising at least one movement (100) according to claim 15 and / or at least one barrel (1) according to one of claims 1 to 14.
    [17]
    17. A method for producing a watch cylinder (1) for its protection against wear under the action of the friction of a spring, characterized in that: - a drum (2) having a first surface is produced; spring support means (20) on the side of a spring-receiving chamber (4), said drum (2) having at least one first bore (11) bordered on either side, on the one hand by a first inner abutment bearing surface (12) adjacent a first inner side wall (5) of the first spring abutment surface (20) and a second abutment abutment surface; outside (13); an area is saved by sparing at least said first bore (11) and / or said first abutment bearing surface (12) and / or said first abutment bearing surface (13) to prevent action of anti-wear treatment by PVD or CVD coating or by DLC treatment on the spared area; - On at least said first spring support surface (20) on the side of said chamber (4) except for the spared area, a wear treatment is carried out by PVD or CVD coating or DLC treatment.
    [18]
    18. The method of claim 17, characterized in that it carries out, on the whole of said drum (2) with the exception of the spared area, an anti-wear treatment by PVD coating or CVD or DLC treatment.
    [19]
    19. The method of claim 17 or 18, characterized in that, during said saving, it saves at least said first abutment bearing surface (12).
    [20]
    20. The method of claim 19, characterized in that, during said savings, it saves at least said first abutment abutment surface (13).
    [21]
    21. Method according to one of claims 17 to 20, characterized in that is further realized, for closing the chamber (4) for receiving at least one spring, a cover (22) or a röchet (13). ) having a second spring bearing surface (30) and a second bore (15) bordered on either side by a second inner abutment bearing surface (17) and on the other part by a second abutment abutment surface (18), and in that: - at least said second bore (15) is spared to prevent the action of an anti-wear treatment by PVD or CVD coating or a DLC treatment; - On the whole of said cover (22) or röchet (13) except for the area thus spared, a treatment by anti-wear coating PVD or CVD or DLC treatment.
    [22]
    22. The method of claim 21, characterized in that, during said savings, it also spares said second abutment bearing surface (17).
    [23]
    23. The method of claim 22, characterized in that, during said savings, it also spares said second abutment abutment surface (18).
    [24]
    24. Process according to one of claims 17 to 23, characterized in that said anti-wear treatment is carried out by a DLC treatment.
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    同族专利:
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    CN105829976A|2016-08-03|
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    EP2887150A1|2015-06-24|
    JP6236169B2|2017-11-22|
    JP2016541000A|2016-12-28|
    EP3084528A2|2016-10-26|
    WO2015090938A4|2016-06-02|
    WO2015090938A3|2016-04-07|
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    EP2520983A1|2011-05-03|2012-11-07|Nivarox-FAR S.A.|Barrel comprising resilient energy accumulation means|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP13198806.5A|EP2887150A1|2013-12-20|2013-12-20|Optimised timepiece barrel|
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