• 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 timepiece dial whose material is a light alloy, and to a method for manufacturing a one-piece light alloy timepiece dial assembly, consisting in: producing, in a first assembled state, a dial ( 1) comprising a flange (2) whose material is a first light alloy, comprising, opposite to the first side of a display area visible to a user, at least one foot (4) for fixing the dial (1 ), this flange (2) comprising at least one receiving zone (5) complementary to an end zone (6) of at least one foot (4) which is a weldable foot (40) weldable or weldable with this flange (2) at the interface between the receiving zone (5) and the end zone (6), and whose material is this first light alloy or a second light alloy weldable or solderable with this first light alloy ; irreversibly assembling by soldering or soldering at least one weldable foot (40) to the flange (2).
    公开号:CH713270A2
    申请号:CH01701/16
    申请日:2016-12-21
    公开日:2018-06-29
    发明作者:Barfuss Philippe；Jeanrenaud Frédéric
    申请人:Rubattel & Weyermann S A；
    IPC主号:
    专利说明:

    Description
    FIELD OF THE INVENTION [0001] The invention relates to a timepiece dial whose material is a light alloy, comprising a flange whose material is a first light alloy, comprising on a first side at least one visible display area. by a user, and on a second side opposite the first side, at least one foot for positioning and / or fixing said dial in a clockwork movement.
    The invention further relates to a one-piece dial assembly, the material is a light alloy, having such a dial.
    The invention also relates to a method of manufacturing a monobloc dial watch assembly whose material is a light alloy.
    The invention relates to the field of display components for the watch industry or for scientific instruments or measuring devices.
    BACKGROUND OF THE INVENTION Clock dials or scientific instruments comprise fixing and / or positioning feet on a plate or in a movement.
    Often these feet are useful for dial manufacturing process, for hanging media or for the realization of deposits in galvanic baths, ensuring the dual function of holding element and current guide.
    In general, these feet are made of copper, coated with a fine gold deposit to prevent their oxidation and improve their electrical contact. The dials are generally cuprous alloy, brass, nickel silver or the like, therefore the feature in the different steps of the process is the same on the dial and the feet it contains.
    The resistance welding process allows to secure these feet and dial, subjecting them to a pulse of energy in the direction of the foot, this energy locally melting the metal at the interface of the dial and foot, to an end of the foot called the pivot, which has a defined diameter, often less than the diameter of the foot, over a defined height, and which constitutes a fuse element which ensures the connection with the dial.
    But such cuprous alloy feet are not suitable for making dials made in some light alloys, including aluminum alloys. In fact, cuprous alloy feet dissolve during electrochemical conversion processes, such as anodization, anodic oxidation or the like, in baths or electrolytes comprising sulfuric or sulfonitric acid.
    The realization of feet in a material having the same behavior as the material of the dial is therefore desirable. One-piece development of the feet with the flange of the dial is expensive in milling by machining, or difficult to achieve by stamping.
    For this reason it is not uncommon to see light alloy dials having a flange undergoing all the galvanic treatments, on which are then reported cuprous alloy feet. Or dials devoid of feet, fixed by fins on the movement. SUMMARY OF THE INVENTION [0012] The invention proposes to report light alloy feet, in particular aluminum or titanium, on a flange of light alloy bare dial, in particular aluminum or titanium, to transform this naked dial in a dial set having feet rigidly secured to the flange, and having the same chemical behavior as him.
    For this purpose, the invention relates to a watch face according to claim 1.
    The invention further relates to a one-piece dial assembly according to claim 6.
    The invention also relates to a method of manufacturing a monobloc clock watch assembly according to claim 10.
    BRIEF DESCRIPTION OF THE DRAWINGS [0016] 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, a bare dial assembled but not welded or brazed, having a flange with, opposite to a top display surface, a lower surface on which are presented feet intended for be welded or brazed on this flange; fig. 2 represents, schematically, and in section, a detail of such a bare dial where the junction between the foot and the flange is a flat surface; fig. 3 represents, in a schematic manner, and in section, a detail of such a bare dial where the junction between the foot and the flange is a cylindrical interlock, the foot penetrating into a bore of the flange; fig. 4 represents, schematically, and in section, a detail of such a bare dial where the junction between the foot and the flange is a touch point between a slight relief that includes the flange and a housing that includes the foot; fig. 5 shows, in schematic form, and in section, a detail of such a bare dial where the junction between the foot and the flap is a connection screwed between a tapping entry that includes the flange, and a thread that includes the foot; fig. 6 shows, schematically, and in section, such a bare dial where the junction between the foot and the flange is at a groove of revolution that includes the flange, which carries a U-shaped notch that includes the foot; fig. 7 represents, schematically, and in section, a detail of such a bare dial where the junction between the foot and the flange is at a groove of revolution that includes the flange, which receives a straight post with parallel faces that includes the foot; fig. 8 is a diagrammatic representation of a dial assembly irreversibly assembled by welding or brazing; fig. 9 represents, schematically, a watch comprising such a dial assembly; fig. 10 represents, schematically, a measuring instrument or scientific apparatus comprising such a dial assembly.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0017] The invention relates to a timepiece dial 1 whose material is a light alloy, comprising a flange 2 whose material is a first light alloy.
    More particularly, this dial 1 is plane, or substantially plane, or with a radius of curvature greater than 30 mm.
    This flange 2 comprises, on a first side at least one display area 3 visible by a user, and on a second side opposite the first side to the front and called back at least one foot 4 for positioning and / or fixing the dial 1 in a clockwork movement 100.
    This dial 1 is a dial whose components, including the feet 4, are removable.
    According to the invention, the flange 2 comprises at least one receiving zone 5 complementary to an end zone 6 of at least one foot 4, which is a weldable foot 40, which is arranged to be welded or soldered with the flange 2 at the interface between the receiving zone 5 and the end zone 6. The constituent material of such a weldable foot 40 is the first light alloy, or a second light alloy which is weldable or solderable with the first light alloy.
    In an advantageous variant, facilitating the preparation and maintenance during subsequent operations, at least one receiving zone 5 comprises a profile arranged to cooperate in complementary manner in support with a complementary profile that includes an end zone 6 relative to the assembly of the same weldable foot 40.
    In a variant, at least one receiving zone 5 envelops a respective end zone 6 relative to the assembly of the same weldable foot 40.
    In another variant, at least one end zone 6 envelops a respective receiving zone 5 relative to the assembly of the same weldable foot 40.
    In another variant, at least one receiving zone 5 is arranged to cooperate in plane support with a respective end zone 6 relative to the assembly of the same weldable foot 40.
    In another variant, at least one pair formed of an end zone 6 and a complementary receiving zone 5 comprises, in a first assembled state not welded or brazed, a tapping cooperating with a thread.
    In yet another variant, at least one receiving zone 5 is part of a groove or rib of revolution, in particular made during a machining of the flange 2 by turning, and the zone of end 6 which is complementary to it is part of a rib or groove of complementary revolution.
    More particularly, the first light alloy and the second light alloy are selected from alloys of aluminum, titanium, or magnesium.
    By alloy is meant here as well the pure metal coated with its oxide layer developed in contact with the atmosphere, such as Al 2 O 3 for aluminum, or TiO 2 for titanium, an alloy in the traditional sense of the term. having addition elements.
    In a variant, the first light alloy and the second light alloy are two aluminum alloys. These alloys are preferably selected from the most easily weldable aluminum alloys. More particularly and not exclusively, they are chosen from aluminum alloys without structural hardening, families 1000 (without addition element) and more particularly 1050 O in the annealed state, 3000 (with addition of manganese) and more. particularly the 3003 O in the annealed state, 5000 (with addition of magnesium) which is well welded and is well adapted to the anodization, and more particularly the 5086 O in the annealed state or the 5083 H111 hardened and stabilized.
    In another variant, the first light alloy is an aluminum alloy, and the second light alloy is a titanium alloy such as TiO 2, TiAl 6 V 4 or TA 6 V, or the like. Or the second light alloy is an aluminum alloy, and the first light alloy is a titanium alloy, such as TiO 2, TiAl 6 V 4 or TA 6 V, or the like.
    In yet another variant, the first light alloy is an aluminum alloy, and the second light alloy is a magnesium alloy that bonds well with aluminum, such as MgAl6Zn3 said G-A6Z3, or MgAIgZn said G-A9Z, or MgZn5Th2Zr, or MgZr. The reverse configuration is naturally possible.
    The invention also relates to a one-piece dial assembly 10, the material of which is a light alloy, having a bare dial 1, and which results from the transformation of this dial 1 by at least one welding or brazing operation which solidarises irreversibly those components that have been welded or brazed together, in particular the flange 2 and all or part of the feet 4. The welded or soldered connection zone no longer contains trace of the initial geometry of the end zones 6 and complementary receiving areas concerned with the welding or soldering operation.
    Thus, according to the invention, in at least one pair formed of an end zone 6 and a complementary receiving zone 5, the end zone 6 and the reception zone 5 are joined so that indémontable at a welded or brazed connection between the flange 2 and the weldable foot 40 concerned.
    There are, for this purpose, technologies compatible with the micro-welding of aluminum and / or titanium, very punctually to avoid any distortion of the visible display area 3, laser technology or plasma, with very small heated zone diameters, of the order of 100 microns, and reduced heating. These technologies make it possible to weld or braze such a solderable foot 40 of light alloy, in particular of welded aluminum or titanium, in butt or point weld, and in particular by laser, or plasma, or ultrasound.
    More particularly 6, in each pair formed of an end zone 6 and a complementary receiving zone 5, the end zone 6 and the reception zone 5 are joined in a non-removable manner at the level of a welded or brazed connection between the flange 2 and the weldable foot 40 concerned.
    In an advantageous variant, the one-piece dial assembly 10 comprises an anodized surface layer, or a surface layer of chromic or sulfuric anodic oxidation, the corresponding surface treatment being carried out after the one or more welding or brazing operations.
    The invention also relates to a watch 1000 comprising such a set dial 10.
    The invention also relates to a scientific instrument comprising such a set dial 10.
    The invention also relates to a measuring apparatus comprising such a set dial 10.
    The invention also relates to a method of manufacturing a watch monoblock dial assembly 10 whose material is a light alloy. According to the invention, the following steps are carried out in this order: - in a first non welded or brazed assembled state, a dial 1 of watchmaking whose material is a light alloy, comprising a flange 2 whose material is a first light alloy, having on a first side at least one display area 3 visible by a user, and on a second side opposite the first side to the front and called back at least one foot 4 for positioning and / or fixing the dial 1 in a watch movement 100. This flange 2 comprises at least one receiving zone 5 complementary to an end zone 6 of at least one foot 4, which is a weldable foot 40 arranged to be welded or brazed with the flange 2 at the interface between the receiving zone 5 and the end zone 6. And the material constituting such a weldable foot 40 is the first light alloy, or a second weldable light alloy or arm able with the first light alloy; irreversibly assembling by soldering or soldering at least one weldable foot 40 to the flange 2 to constitute this one-piece dial assembly 10.
    More particularly, the dial 1 plane, or substantially plane, or with a radius of curvature greater than 30 mm, is produced. More particularly, each weldable foot 40 is assembled irreversibly by welding or soldering to the flange 2.
    More particularly, the dial 1 is made before welding or brazing with at least one receiving zone 5 which, in the first assembled state, not welded or brazed, a respective end zone 6 relative to the assembly of the same weldable foot 40.
    权利要求:
    Claims (20)
    [1]
    More particularly, the dial 1 is made before welding or brazing with at least one end zone 6 which, in the first assembled state, not welded or brazed, encloses a respective receiving zone 5 relative to the assembly of the same weldable foot 40. More particularly, the dial 1 is produced before welding or brazing with at least one pair, formed of an end zone 6 and a complementary receiving zone 5, which comprises, in the first assembled state not welded or brazed, a tapping cooperating with a thread. More particularly, it performs, after the irreversible assembly by welding or brazing, an operation of anodizing, or chromic or sulfuric anodic oxidation of the surface layer of the whole dial 10. In a alternatively, the first light alloy and the second light alloy are selected from alloys of aluminum, titanium, or magnesium. In a variant, the first light alloy and the second light alloy are chosen which are two aluminum alloys. In a variant, the first light alloy and the second light alloy are chosen which are two titanium alloys. In a variant, the first light alloy and the second light alloy are chosen which are two magnesium alloys. In a variant, the first light alloy is chosen which is an aluminum alloy, and the second light alloy which is a titanium alloy, or vice versa. The particular choice of a first light alloy and a second light alloy which are two aluminum alloys is advantageous for the application of an anodizing process. The alternative of titanium feet or titanium alloy gives the same capabilities, with the advantage of great dimensional stability regardless of the number of treatments applied. This alternative is favorable to the application of different chemical conversion treatments on the same dial. Soldering or brazing the feet at the beginning of the cycle avoids the risk of a rejection at the end of production when the product has reached its maximum value. claims
    1. Clock dial (1) whose material is a light alloy, comprising a flange (2) whose material is a first light alloy, having on a first side at least one display area (3) visible by a user, and on a second side at least one foot (4) for the positioning and / or fixing of said dial (1) in a clockwork movement (100), characterized in that said flange (2) comprises at least one receiving zone (5) complementary to an end zone (6) of at least one said foot (4) which is a weldable foot (40) arranged to be welded or brazed with said flange (2) at the level of the interface between said receiving zone (5) and said end zone (6), and whose weldable foot material (40) is said first light alloy or is a second light alloy weldable or solderable with said first light alloy.
    [2]
    2. Dial (1) according to claim 1, characterized in that at least one said receiving zone (5) wraps a said end zone (6) relative to the assembly of the said weldable foot (40), or in that at least one said end zone (6) envelopes a said respective receiving zone (5) relative to the assembly of the same said weldable foot (40), or in that at least one pair formed of a said end zone (6) and a said complementary receiving zone (5) comprises, in a first assembled state not welded or brazed, a tapping cooperating with a thread.
    [3]
    3. Dial (1) according to claim 1 or 2, characterized in that said first light alloy and said second light alloy are selected from alloys of aluminum, titanium, or magnesium.
    [4]
    4. Dial (1) according to claim 3, characterized in that said first light alloy and said second light alloy are two aluminum alloys.
    [5]
    5. Dial (1) according to claim 3, characterized in that said first light alloy is an aluminum alloy, and in that said second light alloy is a titanium alloy, or vice versa.
    [6]
    6. One-piece dial assembly (10), the material of which is a light alloy, comprising a dial (1) according to one of claims 1 to 5, characterized in that, in at least one pair formed of a said zone d end (6) and a complementary receiving zone (5), said end zone (6) and said receiving zone (5) are joined in a releasable manner at a welded or brazed connection between said flange (2) and said weldable foot (40) concerned.
    [7]
    7. One-piece dial assembly (10) according to claim 6, characterized in that, in each pair formed of a said end zone (6) and a said complementary receiving zone (5), said zone of end (6) and said receiving zone (5) are releasably joined at a welded or brazed connection between said flange (2) and said weldable foot (40) concerned.
    [8]
    8. One-piece dial assembly (10) according to claim 6 or 7, characterized in that said dial assembly (10) comprises an anodized surface layer, or a chromic or sulfuric anodic oxidation surface layer.
    [9]
    9. Watch (1000) comprising a dial assembly (10) according to one of claims 6 to 8.
    [10]
    10. A method of manufacturing a watch monobloc dial assembly (10) whose material is a light alloy, characterized in that it carries out in this order the following steps: - to realize, in a first assembled state not welded nor soldered, a clock face (1) whose material is a light alloy, comprising a flange (2) whose material is a first light alloy, comprising on a first side at least one display area (3) visible by a user, and on a second side at least one foot (4) for positioning and / or fixing said dial (1) in a clockwork movement (100), said flange (2) having at least one receiving zone (5) complementary to an end zone (6) of at least one said foot (4) which is a weldable foot (40) arranged to be welded or brazed with said flange (2) at the interface between said receiving zone (5) and said end zone (6), and whose matte wherein said solderable foot (40) is said first light alloy or is a second light alloy weldable or brazeable with said first light alloy; irreversibly assembling by soldering or brazing at least one said weldable foot (40) to said flange (2) to constitute said one-piece dial assembly (10).
    [11]
    11. A method of manufacturing a dial assembly (10) according to claim 10, characterized in that irreversibly assembled by soldering or soldering each said weldable foot (40) to said flange (2).
    [12]
    12. A method of manufacturing a dial assembly (10) according to claim 10 or 11, characterized in that said dial (1) is made before welding or brazing with at least one said receiving zone (5) which envelops, in said first non-welded or brazed assembled state, a said respective end zone (6) relating to the assembly of the same said weldable foot (40).
    [13]
    13. A method of manufacturing a dial assembly (10) according to one of claims 10 to 12, characterized in that it realizes said dial (1) before welding or brazing with at least one said end zone (6). ) which envelops, in said first assembled state unwelded or brazed, a said respective receiving zone (5) relative to the assembly of the same said weldable foot (40).
    [14]
    14. A method of manufacturing a dial assembly (10) according to one of claims 10 to 13, characterized in that it realizes said dial (1) before welding or soldering with at least one pair, formed of a so-called end zone (6) and a said complementary receiving zone (5), which comprises, in said first assembled state not welded or brazed, a tapping cooperating with a thread.
    [15]
    15. A method of manufacturing a dial assembly (10) according to one of claims 10 to 14, characterized in that, after the irreversible assembly by welding or brazing, an operation of anodizing, or of chromic or sulfuric anodic oxidation of the surface layer of said dial assembly (10).
    [16]
    16. A method of manufacturing a dial assembly (10) according to one of claims 10 to 15, characterized in that said first light alloy and said second light alloy selected from alloys of aluminum, titanium, or magnesium.
    [17]
    17. A method of manufacturing a dial assembly (10) according to claim 16, characterized in that said first light alloy and said second light alloy are chosen which are two aluminum alloys.
    [18]
    18. A method of manufacturing a dial assembly (10) according to claim 16, characterized in that said first light alloy and said second light alloy are chosen which are two alloys of titanium.
    [19]
    19. A method of manufacturing a dial assembly (10) according to claim 16, characterized in that said first light alloy and said second light alloy are chosen which are two magnesium alloys.
    [20]
    A method of manufacturing a dial assembly (10) according to claim 16, characterized by selecting said first light alloy which is an aluminum alloy, and said second light alloy which is a titanium alloy, or Conversely.
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    同族专利:
    公开号 | 公开日
    CH713270B1|2020-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01701/16A|CH713270B1|2016-12-21|2016-12-21|Watch dial made of a light alloy material.|CH01701/16A| CH713270B1|2016-12-21|2016-12-21|Watch dial made of a light alloy material.|
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