TIMEPIECE MOVEMENT WITH A BALANCE AND HAIRSPRING
    1.
    发明申请
    TIMEPIECE MOVEMENT WITH A BALANCE AND HAIRSPRING 有权
    时间运动与平衡和发型

    公开(公告)号:US20150248113A1

    公开(公告)日:2015-09-03

    申请号:US14437065

    申请日:2013-10-22

    CPC classification number: G04B17/06 G04B17/066 G04B17/26

    Abstract: The timepiece movement includes a balance-and-hairspring oscillator and an escapement cooperating with the oscillator. The outer turn of the hairspring includes a stiffened portion (9″) arranged to at least partially compensate for the variation in the rate of the movement in dependence upon the oscillation amplitude of the balance caused by the escapement. The hairspring further includes at least one of the following features: a) a distance (R′) between the inner end of the hairspring and the centre of rotation of the hairspring lower than 400 μm, b) a Grossmann curve (10) defined by the inner turn of the hairspring, c) a stiffened portion defined by the inner turn of the hairspring.

    Abstract translation: 钟表机芯包括平衡和游丝振荡器和与振荡器协作的擒纵机构。 游丝的外圈包括加强部分(9“),其被布置成根据由擒纵机构引起的平衡的振荡幅度至少部分地补偿运动速率的变化。 游丝还包括以下特征中的至少一个:a)游丝的内端与游丝的旋转中心之间的距离(R')低于400μm,b)由Grossmann曲线(10)定义的Grossmann曲线(10) 游丝的内翻,c)由游丝的内转而限定的加强部分。

    Timepiece movement with a balance and hairspring
    2.
    发明授权
    Timepiece movement with a balance and hairspring 有权
    钟表运动与平衡和游丝

    公开(公告)号:US09323223B2

    公开(公告)日:2016-04-26

    申请号:US14437065

    申请日:2013-10-22

    CPC classification number: G04B17/06 G04B17/066 G04B17/26

    Abstract: The timepiece movement includes a balance-and-hairspring oscillator and an escapement cooperating with the oscillator. The outer turn of the hairspring includes a stiffened portion (9″) arranged to at least partially compensate for the variation in the rate of the movement in dependence upon the oscillation amplitude of the balance caused by the escapement. The hairspring further includes at least one of the following features: a) a distance (R′) between the inner end of the hairspring and the centre of rotation of the hairspring lower than 400 μm, b) a Grossmann curve (10) defined by the inner turn of the hairspring, c) a stiffened portion defined by the inner turn of the hairspring.

    Abstract translation: 钟表机芯包括平衡和游丝振荡器和与振荡器协作的擒纵机构。 游丝的外圈包括加强部分(9“),其被布置成根据由擒纵机构引起的平衡的振荡幅度至少部分地补偿运动速率的变化。 游丝还包括以下特征中的至少一个:a)游丝的内端与游丝的旋转中心之间的距离(R')低于400μm,b)由Grossmann曲线(10)定义的Grossmann曲线(10) 游丝的内翻,c)由游丝的内转而限定的加强部分。

    Balance-hairspring oscillator for a timepiece

    公开(公告)号:US11249440B2

    公开(公告)日:2022-02-15

    申请号:US16078952

    申请日:2017-03-15

    Abstract: In an oscillator for a timepiece including a balance and a hairspring, the balance lacks equilibrium, such that: the curves for running of the oscillator owing to weight of the hairspring as a function of the oscillation amplitude of the balance in at least four vertical positions of the oscillator spaced by 90° each pass through 0 at an oscillation amplitude of the balance between 200° and 240°; and between oscillation amplitudes of 150° and 280°, curves representing the running of the oscillator owing to lack of equilibrium in the balance as a function of the oscillation amplitude in the vertical positions each has an average slope of opposite sign to the average slope of the corresponding curve among the curves representing the running of the oscillator owing to the weight of the hairspring. A reduction in the running discrepancies between the vertical positions can thus be achieved.

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