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    • 1. 发明申请
    • GEARING PROFILE WITH CONSTANT TORQUE
    • 具有恒定扭矩的齿轮廓形
    • US20120118093A1
    • 2012-05-17
    • US13292565
    • 2011-11-09
    • Jean-Luc HELFER
    • Jean-Luc HELFER
    • F16H55/08
    • G04B13/027F16H55/08Y10T74/19949Y10T74/19972
    • A functional portion of an edge of each tooth of the toothed wheel has a profile which complies with the parametric double formula (in Cartesian coordinates): x  ( u ) = R 1  [ cos  ( 1 μ  ln  ( 1 - μ   u ) ) - u   sin  ( 1 μ  ln  ( 1 - μ   u ) ) ] y  ( u ) = R 1  [ sin  ( 1 μ  ln  ( 1 - μ   u ) ) + u   cos  ( 1 μ  ln  ( 1 - μ   u ) ) ] where R1=d1 cos(α−atan μ), α and d1 being parameters, where μ is a parameter which corresponds to the coefficient of friction at the contact between said edge and an edge of a tooth of another wheel, μ being able to take values between 0.05 and 0.5, and where u is a variable which varies in the interval (0, 1/μ) such that by varying u, the profile is passed through.
    • 齿轮的每个齿的边缘的功能部分具有符合参数化双重公式(以笛卡尔坐标)的轮廓:x(u)= R 1 [cos((1 - (uμμμ)) - u(1)μ(1)(1μu u u u u u u u u u u u uμμμμμμμμμμμμμ 其中R1 = d1 cos(α-atanμ),α和d1是参数,其中μ是参数,其中μ是参数, 其对应于所述边缘和另一个车轮的齿的边缘之间的接触处的摩擦系数,μ能够​​取0.05至0.5之间的值,并且其中u是在间隔(0,1 / μ),使得通过改变u,轮廓通过。
    • 4. 发明申请
    • BALANCE SPRING WITH FIXED CENTRE OF MASS
    • 平衡弹簧与固定中心的质量
    • US20120008467A1
    • 2012-01-12
    • US13177845
    • 2011-07-07
    • Jean-Luc HELFERKaspar Trumpy
    • Jean-Luc HELFERKaspar Trumpy
    • G04B17/06G04B17/20
    • G04B17/066
    • The invention relates to a balance spring (1, 1′) including a first hairspring (3, 3′) the curve of which extends in a first plane, a second hairspring (5, 5′) the curve of which extends in a second plane parallel to the first plane, an attachment member (4, 4′) securing one end of the curve of the first hairspring (3, 3′) to one end of the curve of the second hairspring (5, 5′) so as to form a dual balance spring (1, 1′) in series. According to the invention, the curve of the first hairspring (3, 3′) and the curve of the second hairspring (5, 5′) each include a continuously variable pitch and are symmetrical relative to a straight line (A) parallel to the first and second planes and passing through the median plane of projection of the attachment member (4, 4′) and in that each curve respects the relations. Px(0)=0 and Py(1)=2Py(0) in order to reduce displacements of the centre of mass thereof during contraction and expansion.The invention concerns the field of sprung balance resonators.
    • 本发明涉及一种平衡弹簧(1,1'),其包括其曲线在第一平面中延伸的第一游丝(3,3'),第二游丝(5,5')的曲线在第二游丝 平行于第一平面的平面;将第一游丝(3,3')的曲线的一端固定到第二游丝(5,5')的曲线的一端的附接构件(4,4'),以便 以形成串联的双重平衡弹簧(1,1')。 根据本发明,第一游丝(3,3')的曲线和第二游丝(5,5')的曲线各自包括连续可变的间距,并且相对于平行于第一游丝的直线(A)对称。 第一和第二平面并穿过附接构件(4,4')的投影的中间平面,并且每个曲线都表示关系。 Px(0)= 0和Py(1)= 2Py(0),以减少在收缩和膨胀过程中其质心的位移。 本发明涉及弹簧平衡谐振器的领域。