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公开(公告)号：US4381691A
公开(公告)日：1983-05-03
申请号：US223756
申请日：1981-01-09
CPC分类号： G10C3/16
摘要： Means for adjusting the touch force required to depress the keys of a piano within the range normally preferred by pianists, comprising a plurality of spring member means having a relatively small spring constant (low stiffness). Each spring member means is connected at one of its ends to one of piano keys near the fulcrum thereof. Each spring member means is connected at its other end to a beam located above the keys and extending transversely thereof the full length of the keyboard. At least one of the connections of each spring member means is adjustable. The beam may be a single continuous member, or it may be made up of segments corresponding to groups of adjacent keys. In the initial adjustment each spring member means is typically prestressed by means of its adjustable connection to set the static touch force of its respective key to the desired value.
摘要翻译： 用于调节在钢琴家通常优选的范围内按压钢琴琴键所需的触摸力的装置，包括具有相对小的弹簧常数（低刚度）的多个弹簧构件装置。 每个弹簧构件装置的一端连接到靠近其支点的一个钢琴键。 每个弹簧构件装置在另一端连接到位于钥匙上方的梁上并且横向延伸到键盘的全长。 每个弹簧构件装置的至少一个连接是可调节的。 梁可以是单个连续构件，或者它可以由与相邻键的组对应的段组成。 在初始调整中，每个弹簧构件装置通常通过其可调连接件进行预应力，以将其各自的键的静态接触力设定为所需值。
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公开(公告)号：US4055038A
公开(公告)日：1977-10-25
申请号：US662610
申请日：1976-03-01
摘要： An apparatus for wrapping strings for musical instruments in which the various parameters influencing the quality of the string are accurately controlled, the apparatus comprising an elongated track mounting an opposing pair of heads having rotatable shafts to which the opposite ends of a core wire are fastened, the shafts being rotated in unison by a pair of electronically controlled stepping motors, means being provided to tension the core wire between the heads, the wrapping wire being fed into contact with the core wire by a vertically disposed feed arm suspended from an overhead carriage traveling lengthwise of the track member, the wrapping wire being fed to the feed arm from a source of supply and, as an incident of such feeding, a predetermined tension is applied to the wrapping wire, the feed arm including means for controlling the rate at which the feed arm advances and means for controlling the angle between the wrapping wire and the core wire, the track member also mounting adjustable anvils for forming flats at the opposite ends of the portion of the core wire being wrapped, together with indicia for accurately positioning the operating components of the apparatus relative to the core wire being wrapped.
摘要翻译： 一种用于缠绕弦乐器的装置，其中影响弦的质量的各种参数被精确地控制，该装置包括细长轨道，该细长轨道安装相对的一对头部，其具有可旋转的轴，芯线的相对端被紧固到其上， 轴通过一对电子控制的步进电动机一致地旋转，提供用于张紧头部之间的芯线的装置，包裹线通过垂直设置的进给臂被馈送与芯线接触，悬挂在架空车架行驶 轨道构件的纵向方向，包裹线从供应源供给到进料臂，并且作为这种进料的入口，预定的张力被施加到包装线上，进给臂包括用于控制速度的装置 进给臂前进，并且用于控制包装线和芯线之间的角度的装置，轨道构件也安装 与用于在被包裹的芯线精确地定位装置的操作部件的标记一起，在芯线的部分的相对端处形成平坦部的可调节的砧座被包裹。
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公开(公告)号：US4920847A
公开(公告)日：1990-05-01
申请号：US325870
申请日：1989-03-20
IPC分类号： G10C3/10
CPC分类号： G10C3/10
摘要： Tuning pins that provide adjustable torque, mount directly onto the string plate of a piano, and require no wrest plank. The pins have threaded cores that resemble conventional tuning pins except for coarser threads, and have coaxial collars intermediate their length. Torque is adjusted with a locknut that is also used to mount the pin. Torque is developed by lubricated friction interfaces. Each lubricated friction interface comprises a stationary friction element, a friction element that turns with the pin, and a film of lubricant material between the two. The lubricant material may be hydrodynamic fluid or solid. One or more compliance elements, assembled onto the core, provide compensation for wear and vernier adjustment of torque. In the preferred embodiments the compliance elements are Belleville type spring washers that also act as friction elements. Cores can be made with integral collars, or the collars can be separate parts that are secured to the core. Cores can be made by re-threading conventional tuning pins.
摘要翻译： 调节引脚提供可调节的扭矩，直接安装在钢琴的琴弦板上，不需要摆动板条。 针脚具有类似于常规调音销的螺纹芯，除了较粗的螺纹，并且在它们的长度之间具有同轴的轴环。 扭矩用一个也用于安装销钉的锁紧螺母进行调整。 扭矩由润滑摩擦接口开发。 每个润滑摩擦接口包括固定摩擦元件，与销一起转动的摩擦元件和两者之间的润滑剂材料膜。 润滑剂材料可以是流体动力学流体或固体。 组装到芯上的一个或多个顺应元件为扭矩的磨损和游标调节提供补偿。 在优选实施例中，顺应性元件是还充当摩擦元件的贝氏弹簧垫圈。 内芯可以用整体的套环制成，或者套环可以是固定到芯体上的分离部件。 芯可以通过重新使用传统的调谐引脚来制作。
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公开(公告)号：US4674386A
公开(公告)日：1987-06-23
申请号：US747807
申请日：1985-06-21
CPC分类号： G10C3/16
摘要： An augmented bass hammer striking distance is provided in both upright and grand pianos. At least those strings in the bass section having an optimum striking distance (d) to speaking length (L) ratio (d/L) of a value greater than 1/7 have their hammers located at a striking distance (d) along their lengths as determined by their optimum d/L value. The hammers of all of the bass section strings can be so located. Alternatively, the hammers of those bass section strings having an optimum value of d/L of 1/7 or less can be conventionally located at the same striking distance (d) determined from a preselected d/L value falling within the range of 1/7 to 1/9, or can be incrementally varied. When the lowest few strings of the bass section appear to have subjectively less apparent fullness of tone, the striking distance of the lowest few strings can be shortened string-by-string toward the low end of the bass section by amounts which will modify their subjective d/L - dependent pitch in 100-cent increments. When it is desired to have a rapid and smooth transition from a first group of strings in the bass region having d/L values greater than 1/7 to a second group of strings in the bass section having d/L values of 1/7 or less, the highest few strings of the first group can have their striking distances (d) shortened string-by-string toward the high end of the bass section by amounts which will modify their subjective d/L - dependent pitch in 100-cent increments.
摘要翻译： 直立和三角钢琴都提供了一个增强的低音锤撞击距离。 至少那些具有大于1/7的值的最佳打击距离（d）至说话长度（L）比（d / L））的低音部分的琴弦的锤子沿其长度位于打击距离（d） 由其最佳d / L值确定。 所有低音部分琴弦的锤子都可以如此定位。 或者，具有最佳值d / L为1/7以下的那些低音部分弦的锤可以通常位于从预选的d / L值确定的相同的击打距离（d） 7到1/9，或可以逐渐变化。 当低音部分的最低几弦似乎具有主观上不太明显的音调时，最低几弦的击打距离可以逐个缩小到低音部分的低端，数量将修改其主观 d / L依赖音高，以100分为单位。 当希望从具有d / L值大于1/7的低音区域中的第一组弦的快速平滑过渡到具有d / L值为1/7的低音部分中的第二组弦 或更少，第一组中最高的几个弦可以有其惊人的距离（d）逐字串缩小到低音部分的高端，这将以将以主观的d / L依赖音调修改为100分 增量。
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公开(公告)号：US4127051A
公开(公告)日：1978-11-28
申请号：US834473
申请日：1977-09-19
CPC分类号： G10C3/04
摘要： A piano key frame assembly comprising a rigid metal frame, preferably formed from aluminum tubing, for supporting the piano keys and action, the frame having a front rail, an intermediate balance rail and a back rail, the back rail mounting adjustment means for leveling the keys, the key frame having adjustable feet by means of which it is positioned and leveled within the piano case, the conventional key bed being replaced by relatively narrow key bed brackets extending along the opposite sides of the case on which the adjustable feet are supported, means being provided to align and maintain the key frame on the key bed brackets.
摘要翻译： 一种钢琴键框组件，包括刚性金属框架，优选地由铝管形成，用于支撑钢琴键和动作，框架具有前导轨，中间平衡导轨和后导轨，后轨安装调整装置， 键，该键框具有可调节的脚，通过该键可将其定位和平整在钢琴盒内，常规键床被相对较窄的键床托架所替代，该支架沿着可调节支脚支撑在其上的壳体的相对侧延伸， 提供用于对准和维持关键床支架上的关键框架的装置。
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公开(公告)号：US4602548A
公开(公告)日：1986-07-29
申请号：US747656
申请日：1985-06-21
IPC分类号： G10C3/04
CPC分类号： G10C3/04
摘要： A small mass having a weight within the range of from about 50 grams to about 200 grams is utilized in an upright or grand piano to minimize or eliminate a difference in tonal amplitude and/or decay rate between at least two notes produced by playing at least two adjacent piano keys. The difference in tonal amplitude and/or decay rate may occur in a small group or region of notes produced by adjacent keys, or at those notes of adjacent keys located at certain natural scale "breaks". The mass is affixed to that soundboard bridge on which the note demonstrating the greatest amplitude and/or decay rate terminates vibrationally and is located adjacent the at least one string of that note.
摘要翻译： 重量在约50克至约200克范围内的小物料用于直立或大钢琴中以最小化或消除至少通过至少播放两个音符产生的至少两个音符之间的音调幅度和/或衰减率的差异 两个相邻的钢琴键。 音调幅度和/或衰减速率的差异可能发生在由相邻键产生的音符的小组或区域中，或者位于某些自然尺度“断点”处的相邻键的那些音符处。 质量块被固定在该音板桥上，在该桥上，示出最大振幅和/或衰减速率的音符振动地终止并且位于该音符的至少一个弦的附近。
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公开(公告)号：US4383465A
公开(公告)日：1983-05-17
申请号：US305483
申请日：1981-09-25
IPC分类号： G10D3/10
CPC分类号： G10D3/10
摘要： Wrapped strings for musical instruments having a predetermined speaking length, wherein the wrapping wire is wound on the core wire to provide uniformly spaced helical convolutions spaced from each other by a distance at least as great as the diameter of the wrapping wire, the wrapping wire having a diameter smaller than the diameter of the core wire, said wrapped strings being so wrapped only within the speaking lengths of the strings.
摘要翻译： 用于具有预定说话长度的乐器的包裹弦乐器，其中所述包裹线缠绕在所述芯线上以提供彼此间隔开至少与所述包裹线的直径相距一定距离的均匀间隔的螺旋卷积，所述包裹线具有 直径小于芯线的直径，所述包裹的绳子仅在弦的说出长度内被包裹。
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公开(公告)号：US4211142A
公开(公告)日：1980-07-08
申请号：US974217
申请日：1978-12-29
摘要： A sound reflector for use with a grand piano to reflect sound from the underside of the soundboard toward the rear side of the instrument, the reflector comprising a large panel of sound reflective material underlying the soundboard at an inclined angle with its uppermost side edges adjacent the undersurface of the front side wall of the instrument and with its lowermost side edge at floor level; the reflective panel may be planar or its sound reflecting surface may be convex in cross-section in one or more directions; brackets may be provided to detachably mount the panel to the front side wall of the case or the panel may be permanently attached to the case, as by means of hinges; and means may be provided to suspend the panel so that its lowermost side edge will clear the floor when the piano is moved.
摘要翻译： 一种用于与钢琴一起使用的声音反射器，以将声音从声板的底侧朝向仪器的后侧反射，反射器包括一个大面板的声音反射材料，该声音反射材料位于音板的下方，倾斜角与其最上侧的边缘相邻 仪器前侧壁的下表面，其最下侧边缘处于地面水平; 反射面板可以是平面的或其声音反射表面可以在一个或多个方向上的横截面中是凸的; 可以提供支架以将面板可拆卸地安装到壳体的前侧壁，或者面板可以通过铰链永久地附接到壳体; 并且可以提供装置来悬挂面板，使得当钢琴移动时，其最下侧的边缘将清除地板。
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