• 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 movement comprising two rotary watch components around a common axis, namely a first watch component attached to a shaft having at at least one of its ends a pivot (1) and a second watch component comprising a bearing (2) receiving said pivot (1). The pivot (1) and the bearing (2) have the shape of a regular rounded polygon, preferably a rounded equilateral triangle, male or female respectively, arranged so that the pivot (1) engages in the bearing (2) with an angular clearance to transmit a rotation of the shaft to the second component by a self-locking effect.
    公开号:CH711870A1
    申请号:CH01809/15
    申请日:2015-12-10
    公开日:2017-06-15
    发明作者:Reynard Béranger
    申请人:Parmigiani Fleurier S A；
    IPC主号:
    专利说明:

    Description: [0001] The present invention relates to a watch movement comprising two rotating components around a common axis.
    In watch movements, as a rule, each part used comprises a shaft provided at both ends with pivots, each engaged in a bearing. The pivot members formed of a bearing and a pivot are traditionally used to ensure axial and radial positioning of the rotating parts present in the movements.
    [0003] FR 1 033 071 proposes a stone having a circular section hole and a steel pivot, having at its surface facing the stone, a polygonal section, so as to reduce the contact surfaces between the pivot and stone.
    [0004] WO 2009 115 519 discloses a pivot member for rotating a piece of a watch movement about an axis of rotation, comprising a pivot and a bearing receiving said pivot. The contact surfaces of the two elements against each other are made of a material having a low coefficient of friction and a low wear rate.
    The object of the present invention is to provide another coupling arrangement of two watch components coaxially by means of pivoting members easily manufactured and easily machinable.
    The present invention also allows to avoid hardening of the material caused by a contact between a pivot and a bearing.
    According to the invention, a watch movement comprises two rotary watch components around a common axis, namely a first watch component attached to a shaft having at at least one of its ends a pivot and a second watch component comprising a bearing receiving said pivot. The pivot and the bearing have the shape of a regular rounded polygon of three to six sides, preferably a rounded equilateral triangle, male or female respectively, arranged so that the pivot engages the bearing with angular clearance for transmitting a rotation of the shaft to the second component by a self-locking effect.
    In one embodiment, the rounded triangular shape of the pivot and the bearing respectively has a diameter D1, D1 'of a virtual registered circle tangent to the three sides of the triangle and respectively a diameter D2, D2' of a circumscribed virtual circle passing through the three vertices, where the ratio D1 / D2 or D17D2 'is between 0.5 and 0.95.
    According to this embodiment, the rounded triangular shape of the bearing has a diameter D2 'of a virtual circumscribed circle passing through the three vertices of the triangle of the bearing and the rounded triangular shape of the pivot has a diameter D2 of a virtual circumscribed circle passing through the three vertices of the triangle of the pivot, where the ratio D27D2 is between 0.7 and 0.99.
    In one embodiment, a contact surface S made between the pivot and the bearing when the pivot is inserted into the bearing and moved angularly to ensure a self-locking effect extends over a length. between 1/10 and 9/10 of the total length of one side of the rounded polygon of the pivot.
    The difference in diameter between D2 and D2 'and the shape of the bearing and the pivot allow that the insertion of the pivot in the bearing is self-centering, allowing by an angular displacement a self-locking effect, the extraction of the pivot bearing being angular displacement opposite the angular displacement for self-locking.
    The characteristics of the invention will appear more clearly on reading the description of several embodiments given solely by way of example, in no way limiting with reference to the schematic figures, in which:
    Fig. 1 is a perspective view of a bearing and a pivot, rounded triangular equilateral shape;
    Fig. 2 is a bottom view of a pivot inserted in a bearing, the pivot and the bearing being rounded triangular equilateral triangular shape;
    Fig. 3 is a bottom view of the pivot and the bearing of FIG. 2, the pivot having been moved angularly in a clockwise direction;
    Fig. 4 is a bottom view of a pivot or a triangular equilateral triangular bearing;
    Fig. 5 is a perspective view of a coaxial coupling of two barrels, a pivot and a triangular equilateral triangular bearing ensuring the connection between the two barrels; and
    Fig. 6 shows a sectional view of two barrels coaxially coupled.
    As illustrated in FIG. 1, a coaxial coupling of two rotating clock components about a common axis, is made from a first clock component (partially illustrated) attached to a shaft 30 having at one of its ends a pivot 1 and a second clock component 20 (partially illustrated) having a bearing 2 receiving said pivot 1. The pivot 1 and the bearing 2 have the shape of a rounded equilateral triangle male or female respectively and are arranged
    权利要求:
    Claims (12)
    [1]
    so that the pivot 1 engages the bearing 2 with an angular clearance to transmit a rotation of the shaft 30 to the second component 20 by a self-locking effect. The pivot 1 comprises a bearing surface 3 rubbing against a face 4 of the timepiece component 20. As illustrated in FIG. 2, the pivot 1 is inserted into the bearing 2, the pivot 1 and the bearing 2 being of rounded triangular shape. The rounded triangular shape of the bearing 2 has a diameter D2 of a virtual circumscribed circle 6 passing through the three vertices of the triangle of the bearing 2 and the rounded triangular shape of the pivot 1 has a diameter D2 'of a virtual circumscribed circle 10 passing through the three vertices of the triangle of the pivot (1). In this example, the difference between the diameters D2 'and D2 is small and the ratio D27D2 is 0.93. This small difference in diameter between D2 'and D2 allows, when the pivot 1 is moved angularly once embedded in the bearing 2, to maximize the contact surfaces, and prevent the work hardening of the material. In the example illustrated in FIG. 3, the pivot 1 is moved angularly in the bearing 2 in a clockwise direction. The contact surface S between the pivot 1 and the bearing 2 when the pivot 1 is inserted into the bearing 2 and moved angularly to ensure a self-locking effect extends over a length of about 1/3 of the total length L on one side of the pivot triangle 1. [0016] In the example of FIG. 3, the pivot 1 of rounded triangular male form fits into the rounded triangular female shape of the bearing 2 and after angular displacement the pivot 1 and the bearing 2 are connected in rotation about the same axis. The insertion of the pivot 1 in the bearing 2 is self-centering, allowing by this angular displacement a self-locking effect. The extraction of the pivot 1 of the bearing 2 is by angular displacement opposite the angular displacement for self-locking. As illustrated in FIG. 4, the rounded triangular shape of the pivot 1 and the bearing 2 has a diameter D1 of a virtual registered circle 6 tangential to the three sides of the triangle and a diameter D2 of a virtual circumscribed circle 5 passing through the three vertices. The ratio D1 / D2 is, in this example, about 0.83. The difference between the diameters, outside D2 and inside D1 is small and allows for example to have a rigid axis and to be able to hollow out the center of the tree. Thus, the pivot I can be hollowed out so as to be traversed by a shaft of a larger diameter than if the pivot had a square shape. Figs. 5 and 6 show an arrangement for coupling two barrels 7, 8 in series coaxially. The two barrels 7, 8 are rotatable about a common axis connected in series, namely a first barrel 8 fixed to a shaft 9 having at one of its ends said bearing 2 and a second barrel 7 comprising said pivot 1 receiving said bearing 2 [0019] FIG. 6 shows a sectional view of a coaxial coupling of two barrels 7, 8 in series. Each of the barrels 7, 8 comprises a barrel 13, 14 each serving as housing a spring 17 and pivoting to a barrel shaft for fixing the springs 17 by a hook on a bung. A first barrel shaft 8 is rotated by an outer wheel 12, the first barrel shaft 9 rotating a drum 13 of barrel 8. The barrel 13 of barrel 8 has a bearing 2 in which is embedded a pivot 1 made in a second shaft II of barrel 7. The first shaft 9 of barrel 8 freely rotates in the second shaft 11 of barrel 7. [0020] Thus, when the watch is raised, the barrel shaft 9 8 is driven in rotation by the wheel 12. The spring 17, via a hook of the barrel shaft 9 rotates the barrel 13 of drum 8. The barrel 13 of drum 8, comprises the bearing 2 (Fig. 5) in which is embedded a pivot 1 formed in the shaft 11 of cylinder 7. This recess allows to couple the two barrels 7, 8 without additional parts. The barrel shaft 11 rotates freely around the barrel shaft 9 and drives the spring 15 which rotates the drum 14 of the barrel 7. A ring gear 16, integral with the barrel drum 14, transmits the energy to the movement of the watch. In the illustrated examples, the preferred geometric shape of the pivot 1 and the bearing 2 is triangular but in non described variants, this geometric shape can be polygonal as for example pentagonal. This coaxial coupling of two components watchmaker in particular allows to gain space in a movement, whether it is a wristwatch, a pocket watch or a table clock. claims
    1. Watch movement comprising two rotary watch components around a common axis, namely a first watch component attached to a shaft having at at least one of its ends a pivot (1) and a second watch component comprising a bearing (2) receiving said pivot (1), the pivot (1) and the bearing (2) having the shape of a regular rounded polygon of three to six sides, preferably a rounded equilateral triangle, male or female respectively, arranged in such a way that that the pivot (1) engages in the bearing (2) with an angular clearance to transmit a rotation of the shaft to the second component by a self-locking effect.
    [2]
    2. Movement according to claim 1, wherein the pivot (1) and the bearing (2) have the shape of a rounded equilateral triangle.
    [3]
    3. Movement according to claim 2, wherein the rounded triangular shape of the pivot (1) and the bearing (2) respectively has a diameter D1, D1 'of a virtual inscribed circle (6, 10) tangential to the three sides of the triangle. and respectively a diameter D2, D2 'of a virtual circumscribed circle (5) passing through the three vertices, where the ratio D1 / D2 and D17D2' is between 0.5 and 0.95.
    [4]
    4. Movement according to claim 2 or 3, wherein the rounded triangular shape of the bearing (2) has a diameter D2 of a virtual circumscribed circle (6) passing through the three vertices of the triangle of the bearing (2) and the triangular shape rounded of the pivot (1) has a diameter D2 'of a virtual circumscribed circle (10) passing through the three vertices of the triangle of the pivot (1), where the ratio D3 / D2 is between 0.7 and 0.99.
    [5]
    5. Movement according to one of the preceding claims, wherein a contact surface S, established between the pivot (1) and the bearing (2) when the pivot (1) is inserted into the bearing (2) and moved angularly to ensure a self-locking effect, extends over a length between 1/10 and 9/10 of the total length of one side of the rounded polygon of the pivot (1).
    [6]
    6. Movement according to one of the preceding claims, wherein the insertion of the pivot (1) in the bearing (2) is self-centering, allowing by an angular displacement a self-locking effect, the extraction of the pivot (1 ) of the bearing (2) being an angular displacement opposite the angular displacement for self-locking.
    [7]
    7. Movement according to one of the preceding claims, wherein the pivot (1) comprises a bearing surface (3) rubbing against a face (4) of a clock component comprising the bearing (2).
    [8]
    8. Movement according to one of the preceding claims, wherein the pivot (1) is recessed.
    [9]
    9. Movement according to one of the preceding claims, comprising two barrels (7, 8) rotatable about a common axis connected in series, namely a first cylinder (8) fixed to a shaft (9) having at least one from its ends said bearing (2) and a second cylinder (7) comprising said pivot (1) receiving said bearing (2).
    [10]
    10. Movement according to claim 9, wherein a first shaft (9) of the first cylinder (8) is rotated by a wheel (12), the first shaft (9) of the first cylinder (8) rotating a drum ( 13) of the first barrel (8), the drum (13) of the first barrel (8) having a bearing (2) in which is embedded a pivot (1) formed in a second shaft (11) of the second barrel (7). ), the first shaft (9) of the first cylinder (8) freely rotating relative to the second shaft (11) of the second cylinder (7).
    [11]
    11. Timepiece, characterized in that it comprises a movement according to one of claims 1 to 10.
    [12]
    12. Timepiece according to claim 11 in the form of a wristwatch or pocket watch or table clock.
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    同族专利:
    公开号 | 公开日
    WO2017098418A1|2017-06-15|
    US20190004479A1|2019-01-03|
    EP3387493A1|2018-10-17|
    CH711870B1|2019-08-30|
    CN108475038A|2018-08-31|
    RU2018123478A|2020-01-10|
    JP2018537696A|2018-12-20|
    引用文献:
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    法律状态:
    2020-07-31| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    CH01809/15A|CH711870B1|2015-12-10|2015-12-10|Watch movement.|CH01809/15A| CH711870B1|2015-12-10|2015-12-10|Watch movement.|
    RU2018123478A| RU2018123478A|2015-12-10|2016-12-07|CLOCKWORK|
    PCT/IB2016/057410| WO2017098418A1|2015-12-10|2016-12-07|Timepiece movement|
    JP2018549637A| JP2018537696A|2015-12-10|2016-12-07|Watch movement|
    CN201680079185.7A| CN108475038A|2015-12-10|2016-12-07|Watch and clock movement|
    US16/060,578| US20190004479A1|2015-12-10|2016-12-07|Timepiece movement|
    EP16810076.6A| EP3387493A1|2015-12-10|2016-12-07|Timepiece movement|
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