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41. 发明授权

US1574863A String plate for grand pianos 失效
标题翻译：钢琴弦钢琴
公开(公告)号：US1574863A
公开(公告)日：1926-03-02
申请号：US57555422
申请日：1922-07-17
申请人： STRAUBE PIANO CO
发明人： BETZ WILLIAM G
IPC分类号： G10C3/04
CPC分类号： G10C3/04

42. 发明申请

US20230127612A1 Transportable Stringed Keyboard Instrument 有权
公开(公告)号：US20230127612A1
公开(公告)日：2023-04-27
申请号：US17759811
申请日：2021-02-02
申请人： Keybird Instruments ApS
发明人： Lander Pinson
IPC分类号： G10C1/02 , G10C3/04 , G10C3/06 , G10C3/161
摘要： A transportable stringed keyboard instrument includes a lightweight sound-body formed of several layers with front plate and back plate of material of high modulus of elasticity like steel or higher, with a side plate of a material of high modulus of elasticity like steel or higher, bonded to various layers between front plate and back plate. A method of forming a lightweight sound-body includes a single press procedure, wherein the sound-body is formed with bending in opposite direction compared to bending forces due to the string load. An upright piano action is optimized for space reduction so that keys can be positioned closer to the strings and a rotatable action together with the keys form a separate unit for transportation, apart from the sound-body.

43. 发明申请

US20220293068A1 KEYBOARD DEVICE FOR KEYBOARD INSTRUMENT 有权
公开(公告)号：US20220293068A1
公开(公告)日：2022-09-15
申请号：US17653574
申请日：2022-03-04
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Akihiro SUZUKI
IPC分类号： G10C3/18 , G10H1/34 , G10C3/04
摘要： A keyboard device for a keyboard instrument, capable of obtaining excellent touch feeling and stable key stroke without giving sponge feeling or unpleasant vibration during key depression. The keyboard device includes a keyboard chassis, keys pivotally supported on the chassis, hammers swingably supported on the chassis and swinging along with key depression, a hammer upper limit stopper provided on a chassis rear end and contacted by a hammer rear end from below during key depression, and a key lower limit stopper provided on a chassis front end and contacted by front ends of the keys from above during key depression. The hammer upper limit stopper has predetermined flexibility that allows deformation of the hammer upper limit stopper such that after contact of a hammer during key depression, an associated key reaches its lowest position in a state in contact with the key lower limit stopper.

44. 发明授权

US11423868B2 Keyboard device and musical sound emission method 有权
公开(公告)号：US11423868B2
公开(公告)日：2022-08-23
申请号：US17387946
申请日：2021-07-28
申请人： Roland Corporation
发明人： Masaaki Matsuba , Takahiro Murai
IPC分类号： G10C3/06 , G10C3/04 , G10H1/32 , G10C1/00
摘要： A keyboard device and a musical sound emission method are provided. A top lid is formed into a hollow structure including a lower plate and an upper plate facing the lower plate. Since vibrating bodies are fixed to an inner surface of the lower plate, the vibrating bodies can cause the lower plate to vibrate and thereby emit musical sound generated through the vibration from an outer surface side of the lower plate to the outside. On the other hand, the musical sound emitted from an inner surface side of the lower plate is blocked by the upper plate, and it is thus possible to curb mutual cancelation of musical sound in opposite phases emitted from each of the inner surface and the outer surface of the lower plate. Therefore, it is possible to efficiently emit musical sound to the surroundings of the top lid.

45. 发明申请

US20220189436A1 KEYBOARD DEVICE AND MUSICAL SOUND EMISSION METHOD 有权
公开(公告)号：US20220189436A1
公开(公告)日：2022-06-16
申请号：US17387946
申请日：2021-07-28
申请人： Roland Corporation
发明人： Masaaki Matsuba , Takahiro MURAI
IPC分类号： G10C3/06 , G10C3/04 , G10C1/00 , G10H1/32
摘要： A keyboard device and a musical sound emission method are provided. A top lid is formed into a hollow structure including a lower plate and an upper plate facing the lower plate. Since vibrating bodies are fixed to an inner surface of the lower plate, the vibrating bodies can cause the lower plate to vibrate and thereby emit musical sound generated through the vibration from an outer surface side of the lower plate to the outside. On the other hand, the musical sound emitted from an inner surface side of the lower plate is blocked by the upper plate, and it is thus possible to curb mutual cancelation of musical sound in opposite phases emitted from each of the inner surface and the outer surface of the lower plate. Therefore, it is possible to efficiently emit musical sound to the surroundings of the top lid.

46. 发明授权

US11222616B2 Securing device for piano strings 有权
公开(公告)号：US11222616B2
公开(公告)日：2022-01-11
申请号：US17257757
申请日：2019-05-07
申请人： Vladislav Vladimirovich Volkov
发明人： Vladislav Vladimirovich Volkov
IPC分类号： G10C3/106 , G10C3/07 , G10C3/04 , G10C3/06
摘要： The invention relates to a device for tightening the strings of a keyboard musical instrument. The device provides for rigidly securing a tuning pin in position by means of a collet pressing into a cast-iron frame, an elastic ring being mounted on windings of a string. The present technical improvements increase tuning stability and tuning retention, increase string resistance to breaking, and increase the service life of a musical instrument.

47. 发明授权

US09685144B2 Toy piano 有权
公开(公告)号：US09685144B2
公开(公告)日：2017-06-20
申请号：US14214782
申请日：2014-03-15
申请人： Leonard Trinca
发明人： Leonard Trinca
IPC分类号： A63H5/00 , G10C3/04 , G10D13/08 , A63H33/30
CPC分类号： G10C3/04 , A63H5/00 , A63H33/30 , G10D13/085
摘要： A toy piano including one or both an enlarged sound plate intermediate the sound bar of the toy piano and its sound board, and a sound box into which the sound board is incorporated. Preferably, the sound plate extends beyond the normal edges of the sound bar in which the longitudinal tines of the toy piano are mounted so as to lie adjacent to the sound board over a larger area. Likewise, the sound box should preferably be shaped so as to be somewhat wider (measured in the longitudinal direction of the tines) towards the end where the tines are longest (and produce lower tones) and somewhat narrower towards the end where the shorter tines (producing higher tones) are located. It preferred shape is characterized by somewhat convex curves at the more treble and bass ends, respectively, of the sound box with a somewhat concave curve intermediate these two ends. The backboard of the sound box can be bowed outward for enhance acoustics.

48. 发明授权

US4873906A Adjustable stringplate mounting means for a grand piano 失效
标题翻译：可调弦板安装方式用于大钢琴
公开(公告)号：US4873906A
公开(公告)日：1989-10-17
申请号：US313046
申请日：1989-02-21
申请人： Lewis F. Herwig
发明人： Lewis F. Herwig
IPC分类号： G10C3/04
CPC分类号： G10C3/04
摘要： Adjustable mounting means for providing variable spacing between the stringplate and the adjacently spaced soundboard of a grand piano wherein a number of elongate threaded cylinders are located in the peripheral frame is disclosed. Each threaded member has an upwardly extending end for receiving the apertured string plate thereon and contains a central threaded bore for receiving a bolt. The stringplate rests on the threaded members with the appropriate spacing between soundboard and stringplate being attained by adjustment of the threaded members from the underside of the piano.
摘要翻译：公开了一种可调节的安装装置，用于在钢琴和相邻间隔的钢琴之间提供可变间隔，其中多个细长螺纹圆柱体位于周边框架中。每个螺纹构件具有向上延伸的端部，用于在其上容纳有孔柱板，并且包含用于接收螺栓的中心螺纹孔。弦板搁置在螺纹构件上，通过从钢琴的下侧调整螺纹构件来获得音板和弦板之间的适当间隔。

49. 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。

50. 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。

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