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    • 3. 发明授权
    • String bearing and tremolo device method and apparatus for stringed
musical instrument
    • 用于弦乐器的弦乐器和颤音装置的方法和装置
    • US5986190A
    • 1999-11-16
    • US953829
    • 1997-10-18
    • Steven B. WolffGary D. Erickson
    • Steven B. WolffGary D. Erickson
    • G10D3/04G10D3/14G10D3/00
    • G10D3/04G10D3/146
    • This is a method and an apparatus that provides string bearings (32) and constant inter string pitch correction and pitch trajectory control tremolo device (64 or 80) for a stringed musical instrument (12). The string bearings (32) allow the strings (18) of the instrument to move freely in the axial direction and to be guided with high stiffness in the radial direction. The string bearings contain low axial friction and high radial stiffness bearing inserts (40) whose surface supports the strings to provide the witness points of nuts, bridges, frets, and finger boards. The material of preference for the string bearing inserts (40) is one of the highest energy resiliency and stiffness and the lowest friction. The string bearings and their inserts are adjustable (32, 56, 42, 58) or fixed position. Adjustments are in the horizontal, vertical, and axial (46, 50, 48) directions or any combination thereof. The constant inter string pitch correction and pitch trajectory control tremolo device (64 or 80 in FIG. 5 or 6) provides the simultaneous correction of string pitch to maintain a constant open tuning ratio relationship throughout all tremolo bar input angles and the control of the strings' pitch trajectories to provide a chromatic (FIG. 8), linear (FIG. 9), natural (FIG. 10), or combination pitch trajectory. Non linear string tension devices from the group of substantially non circular pulleys (66), cams (82), and electrically activated solenoids and motors (96) whose axial displacement table (FIGS. 8A, 9A, 10A) has been designed to provide the constant inter string pitch correction and pitch trajectory control multiplicand of the tremolo bar input (76) angle.
    • 这是一种方法和装置,它为弦乐器(12)提供绳索轴承(32)和恒定弦间距校正和俯仰轨迹控制颤音装置(64或80)。 绳轴承(32)允许乐器的琴弦(18)在轴向方向上自由移动并且在径向方向上以高刚度被引导。 绳轴承包含低轴向摩擦和高径向刚度轴承插入件(40),其表面支撑弦线以提供螺母,桥梁,皮带和指板的见证点。 轴承插入件(40)的优选材料是最高的能量弹性和刚度以及最低的摩擦力之一。 绳轴承及其插入件可调节(32,56,42,58)或固定位置。 水平,垂直和轴向(46,50,48)方向或其任何组合的调整。 恒定的串间距校正和俯仰轨迹控制颤音装置(图5或图6中的64或80)提供弦间距的同时校正,以在整个颤音杆输入角度和弦的控制中保持恒定的开放调谐比关系 (图8),线性(图9),自然(图10)或组合俯仰轨迹的俯仰轨迹。 来自一组基本上非圆形的皮带轮(66),凸轮(82)和电活动螺线管和马达(96)的非线性弦线张紧装置,其轴向位移台(图8A,9A,10A)已被设计成提供 恒定的弦间间距校正和俯仰轨迹控制乘法器的颤音杆输入(76)角度。