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51. 发明授权

US4821618A Action-supporting arrangement in piano 失效
标题翻译：行动支援安排在钢琴
公开(公告)号：US4821618A
公开(公告)日：1989-04-18
申请号：US112724
申请日：1987-10-23
申请人： Shinsaku Koizumi
发明人： Shinsaku Koizumi
IPC分类号： G10C3/04 , G01C3/18
CPC分类号： G10C3/04
摘要： The action mechanism of a piano is supported directly from a back structure of the piano and is adjustable relative to strings of the piano prior to assembly of the complete piano, the supports for the action mechanism being attached directly to back posts of the back structure, which act to absorb noises created in the action mechanism and inhibit the transmission of vibrations and noises produced in the action mechanism to the strings and soundboard of the piano.
摘要翻译：钢琴的动作机构直接由钢琴的背部结构支撑，并且在整个钢琴组装之前可相对于钢琴的琴弦调节，用于动作机构的支撑件直接附接到后部结构的后柱，其作用是吸收在动作机构中产生的噪声，并且抑制在动作机构中产生的振动和噪声对钢琴的琴弦和音板的传递。

52. 发明授权

US4602548A Tone compensator for piano soundboards 失效
标题翻译：钢琴音板音调补偿器
公开(公告)号：US4602548A
公开(公告)日：1986-07-29
申请号：US747656
申请日：1985-06-21
申请人： Harold A. Conklin, Jr.
发明人： Harold A. Conklin, Jr.
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。

53. 发明授权

US4478125A Piano sound board 失效
标题翻译：钢琴声板
公开(公告)号：US4478125A
公开(公告)日：1984-10-23
申请号：US441788
申请日：1982-11-15
申请人： Domingo H. Rodriguez
发明人： Domingo H. Rodriguez
IPC分类号： G10C3/04
CPC分类号： G10C3/04
摘要： A piano sound board having an upper bridge, and a lower bridge arranged at an angle to each other in a common plane. A plurality of strings following the harmonic progression ##EQU1## secured between the bridges, at right angles to the upper bridge.
摘要翻译：具有上桥的钢琴声板和在共同平面中彼此成角度配置的下桥。谐波进行之后的多个弦固定在桥之间，与上桥成直角。

54. 发明授权

US4377102A Piano construction 失效
标题翻译：钢琴构造
公开(公告)号：US4377102A
公开(公告)日：1983-03-22
申请号：US259082
申请日：1981-04-30
申请人： Robert J. Mayerjak
发明人： Robert J. Mayerjak
IPC分类号： G10C3/00 , G10C1/02 , G10C3/04 , G10C3/06 , G10C3/08 , G10C3/12
CPC分类号： G10C3/04 , G10C1/02
摘要： In a piano a panel, which takes the place of the usual cast iron string plate or frame, is provided for supporting the strings. The panel is a sandwich construction making it exceptionally strong and capable of withstanding the string loads without bending or otherwise yielding and without requiring auxiliary support such as the massive wooden backs or trusses to which cast iron string plates are usually attached. The string panel has a relatively thick low modulus of elasticity core layer, a portion of which is made of laminated hard wood to serve as a pin block, and relatively thin layers of high modulus of elasticity material, such as steel, bonded to the core layer. If desired the string panel may be used as the main frame of the piano to which other major components, such as the soundboard, key bed, side cheeks, housing and feet, are directly attached.
摘要翻译：在钢琴中，用于代替通常的铸铁弦线板或框架的面板被提供用于支撑琴弦。面板是一种三明治结构，使其非常坚固，能够承受弦线负载而不弯曲或以其他方式产生，而不需要辅助支撑，例如通常安装铸铁线板的大块木质背部或桁架。弦板具有相对较低的低弹性芯层，其一部分由层压硬木制成，用作销块，以及相对较薄的高弹性模量材料，例如钢，结合到芯层。如果需要，串面板可以用作钢琴的主框架，诸如音板，钥匙床，侧面颊，外壳和脚的其他主要部件直接连接到该主框架上。

55. 发明授权

US4329903A Back frame for a piano or the like 失效
标题翻译：钢琴的后框架等
公开(公告)号：US4329903A
公开(公告)日：1982-05-18
申请号：US080181
申请日：1979-10-01
申请人： Robert J. Mayerjak
发明人： Robert J. Mayerjak
IPC分类号： G10C3/04
CPC分类号： G10C3/04
摘要： A back frame for a piano or like instrument is comprised by a laminated composite structure having outer laminates of sheet steel and an intermediate laminate which is formed by a reconstituted wood product. The steel laminates are joined to the intermediate laminate and the intermediate laminate is substantially thicker than the sheet steel to offset the outer laminates from one another and increase the stiffness of the structure. A plurality of integral beam elements extend through the laminated structure in the same general direction as the tensioning load of the strings in the piano, and the elements are spaced from one another and define openings in the frame through which sound is emitted from the sounding board of the instrument.
摘要翻译：用于钢琴或类似乐器的后框架由具有钢板外层板的层压复合结构和由再生木制品形成的中间层压板组成。钢层压板连接到中间层压板，中间层压板基本上比钢板更厚，以将外层压板彼此偏移并增加结构的刚度。多个整体光束元件在与钢琴中的弦的张紧载荷相同的大致方向上延伸穿过层压结构，并且元件彼此间隔开，并且在框架中限定了从探空板发出声音的开口的仪器。

56. 发明授权

US4297937A Arm and key bed assembly for a piano and the like 失效
标题翻译：用于钢琴的手臂和钥匙床组件等
公开(公告)号：US4297937A
公开(公告)日：1981-11-03
申请号：US77851
申请日：1979-09-21
申请人： Robert J. Mayerjak
发明人： Robert J. Mayerjak
IPC分类号： G10C3/04
CPC分类号： G10C3/04
摘要： A piano case or frame includes a laminated key bed and side arms joined with the bed at each end. The key bed supports the keyboard and associated portions of the piano action, and is assembled with each side arm of the frame by means of a rabbet joint. Fastening screws extending through the laminated bed into barrel nuts within each of the side arms develop significant pressure in the rabbet joints to hold the key bed and the supported keyboard in a level, undistorted position.
摘要翻译：钢琴盒或框架包括层叠的钥匙床和在每一端与床接合的侧臂。钥匙床支撑键盘和钢琴动作的相关部分，并通过拉杆接头与框架的每个侧臂组装。在每个侧臂中延伸穿过层压床到桶形螺母的紧固螺钉在拉头接头中产生显着的压力，以将键床和支撑的键盘保持在水平的未失真的位置。

57. 发明授权

US3805666A Pin plate arrangement for a piano 失效
标题翻译： PIANO的PIN板装置
公开(公告)号：US3805666A
公开(公告)日：1974-04-23
申请号：US33372273
申请日：1973-02-20
申请人： NIPPON MUSICAL INSTRUMENTS MFG
发明人： OKUGAWA T
IPC分类号： G10C3/04 , G10C3/10
CPC分类号： G10C3/106 , G10C3/04
摘要： A pin plate arrangement for a piano comprising a first plurality of bonded together plies of wood, a second plurality of bonded together plies of wood, and intermediate layers of wooden members interposed and bonded between the first and second pluralities of plies, each of the plies of the pluralities of plies being smaller in thickness than each of the intermediate layers, and the individual plies of the pluralities of plies being bonded together with a set resin, whereby a sufficient pin holding force of the pin plate is maintained for a long period of time even with changes in atmospheric conditions.
摘要翻译：一种用于钢琴的销板装置，包括第一多个粘合在一起的木板，第二多个粘合在一起的木板，以及插入并粘合在第一和第二多个层之间的木构件的中间层，每个层的多个层的厚度比每个中间层的厚度小，并且多个层的各个层与固化树脂粘合在一起，从而使销板的足够的销保持力长时间保持时间甚至随着大气条件的变化。

58. 发明授权

US3721149A Scale for upright pianos 失效
标题翻译：适用于直升机的规模
公开(公告)号：US3721149A
公开(公告)日：1973-03-20
申请号：US3721149D
申请日：1971-10-26
申请人： PAGLIARO S
发明人： PAGLIARO S
IPC分类号： G10C3/04 , G10C3/08
CPC分类号： G10C3/04
摘要： A scale for upright pianos adapted to provide improved tonal quality and volume is disclosed, in which the bass scale includes the strings corresponding to at least four notes at the low end of the treble scale in a conventional piano. The bass strings and the four treble note strings are positioned parallel to each other and extend diagonally across the piano scale at approximately a 45* angle with respect to a horizontal reference line to obtain maximum string length without increasing the overall piano size, and are supported by a pair of bass bridge sections disposed therebeneath. The first section of the bridge is in the form of a continuous curve and is adapted to receive all of the bass strings, and the second section is of irregular shape disposed approximately perpendicular to the first section and receives the strings corresponding to the four treble notes.
摘要翻译：公开了用于提供改善的音调质量和体积的竖立钢琴的刻度，其中低音尺包括对应于传统钢琴中的高音音阶低端的至少四个音符的琴弦。低音弦和四个高音音符串彼此平行定位并相对于水平参考线以大约45度的角度对角地延伸穿过钢琴刻度线，以获得最大的弦长而不增加钢琴的整体尺寸，并被支撑由一对布置在其下的低音桥段。桥的第一部分是连续曲线的形式，并且适于接收所有的低音弦，并且第二部分具有不规则形状，大致垂直于第一部分设置，并且接收与四个高音相对应的琴弦。

59. 发明授权

US3562027A Piano plate of low loss factor 失效
标题翻译：低损失因素PIANO板
公开(公告)号：US3562027A
公开(公告)日：1971-02-09
申请号：US3562027D
申请日：1968-03-13
申请人： NIPPON MUSICAL INSTRUMENTS MFG
发明人： TAKAMURA MASAYUKI , HAYASHI HIRONOBU , NOZAKI KINYA
IPC分类号： G10C3/04 , C22C37/00 , G10C3/06
CPC分类号： G10C3/04
摘要： A PIANO PLATE MADE OF A CAST FERROUS METAL HAVING A LOSS FACTOR (Q-1) OF FROM 1.5X10**-3 TO 0.2X10**-3, WHEREBY THE SOUND DAMPING EFFECT OF A PIANO IN WHICH THIS PLATE IN INSTALLED BECOMES EXTREMELY SMALL, AND THE ACOUSTICAL CHARACTERISTICS OF THE PIANO ARE GREATLY IMPROVED. AT THE SAME TIME, A GREAT REDUCTION IN WEIGHT OF THE PLATE CAN BE EFFECTED WITHOUT SACRIFICING THE MECHANICAL STRENGTH AND THE IMPROVED ACOUSTICAL CHARACTERISTICS. SUITABLE CAST FERROUS METALS ARE CAST STEELS, SPHEROIDAL GRAPHITE CAST IRONS, MALLEABLE CAST IRONS, AND MEEHANITE CAST IRONS.

D R A W I N G

60. 发明授权

US3477331A Forward termination means for the speaking length of piano strings and the like 失效
标题翻译：对于PIANO STRINGS和类似的扬声器长度的前瞻性终止手段
公开(公告)号：US3477331A
公开(公告)日：1969-11-11
申请号：US3477331D
申请日：1966-08-15
申请人： BALDWIN CO D H
发明人： CONKLIN HAROLD A JR
IPC分类号： G10C3/08 , G10C3/04
CPC分类号： G10C3/08

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