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11. 发明授权

US4550638A Portable keyboard-type musical instrument 失效
标题翻译：便携式键盘乐器
公开(公告)号：US4550638A
公开(公告)日：1985-11-05
申请号：US496433
申请日：1983-05-20
申请人： Kenkichi Kaneko , Takeshi Hattori , Kensaku Hakamata , Satoru Hayashi , Takayuki Goshima , Masakazu Matsumoto
发明人： Kenkichi Kaneko , Takeshi Hattori , Kensaku Hakamata , Satoru Hayashi , Takayuki Goshima , Masakazu Matsumoto
IPC分类号： G10C3/02 , F16M11/22 , F16M11/24 , G10B1/00 , G10C1/00 , G10C1/06 , G10C3/04 , G10C3/12 , G10G5/00
CPC分类号： G10C3/12 , Y10S84/03
摘要： A portable keyboard-type musical instrument includes detachable end support frames which can be attached to the musical instrument in either an extended supporting position or a retracted storage position, a support for the keyboard of the instrument being rigidly supported by members which are in turn rigidly attached to the frame of the musical instrument.
摘要翻译：一种便携式键盘式乐器包括可拆卸的端部支撑框架，其可以在延伸的支撑位置或缩回的存储位置附接到乐器，仪器的键盘的支撑由刚性的构件刚性地支撑附在乐器的框架上。

12. 发明授权

US3931752A Piano with floating bridge 失效
标题翻译：钢琴与浮桥
公开(公告)号：US3931752A
公开(公告)日：1976-01-13
申请号：US477295
申请日：1974-06-07
申请人： Charles E. Mussulman
发明人： Charles E. Mussulman
IPC分类号： G10H3/08 , G10C3/04
CPC分类号： G10H3/08
摘要： An electric piano, using only one string per note and no soundboard, employs special mechanical and electrical means capable of controlling all of its various characteristics in order to duplicate the sound and other characteristics of a conventional piano. A floating bridge, floating on the strings and supported solely thereby, is used not for the pickup or transfer of string vibrations to any other device, but to control the characteristics of the string vibrations. Magnetic pickups consisting of a series of coils with adjustable permanent-magnet cores are arranged in special positions along the active lengths of corresponding strings and, in conjunction with frequency responsive capacitor circuitry, convert the vibration of each string into an electrical signal, shape the signal, and provide a composite signal output containing all the tone characteristics needed to produce a true piano sound. One end of each string is attached by a slip proof connection to an independent tuning bar mechanism employing a rocker bar on a fulcrum, the bar position being precisely controlled for both coarse and fine tuning.
摘要翻译：一个电子钢琴，每个音符只使用一个琴弦，没有音板，采用特殊的机械和电气装置，能够控制其各种特征，以复制传统钢琴的声音和其他特点。漂浮在琴弦上并且仅由其支撑的浮桥不用于将弦振动拾取或传送到任何其他装置，而是用于控制琴弦振动的特性。由具有可调永磁铁芯的一系列线圈组成的磁性拾音器沿着相应弦的有效长度被布置在特殊位置，并且与频率响应电容器电路结合，将每个弦的振动转换成电信号，形成信号，并提供包含产生真正钢琴声音所需的所有音调特性的复合信号输出。每个琴弦的一端通过防滑连接连接到独立的调音杆机构，该机构在支点上采用摇杆，该杆位置被精确地控制在粗调和微调。

13. 发明授权

US3478635A Hitch pin for stringed instruments 失效
标题翻译： HITCH PIN为STRING仪器
公开(公告)号：US3478635A
公开(公告)日：1969-11-18
申请号：US3478635D
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 , G10C3/10
CPC分类号： G10C3/08

14. 发明授权

US3443464A Soundboard ribs 失效
标题翻译： SOUNDBOARD RIBS
公开(公告)号：US3443464A
公开(公告)日：1969-05-13
申请号：US3443464D
申请日：1966-12-15
申请人： NIPPON MUSICAL INSTRUMENTS MFG
发明人： AKAGI SHOJI
IPC分类号： G10C3/04 , G10C3/06
CPC分类号： G10C3/04 , G10C3/06

15. 发明授权

US3248990A Piano tone producing structure 失效
标题翻译：钢琴制作结构
公开(公告)号：US3248990A
公开(公告)日：1966-05-03
申请号：US18679262
申请日：1962-04-11
申请人： ARNE BOLIN GUSTAV GEORGE
发明人： ARNE BOLIN GUSTAV GEORGE
IPC分类号： G10C1/02 , G10C3/04
CPC分类号： G10C1/02 , G10C3/04 , G10C3/06

16. 发明授权

US3072005A Piano construction 失效
标题翻译：钢琴构造
公开(公告)号：US3072005A
公开(公告)日：1963-01-08
申请号：US84761659
申请日：1959-10-20
申请人： BALDWIN PIANO CO
发明人： QUITTER JOHN P , CORWIN MERTON D , LAKAMP WILLIAM F
IPC分类号： G10C3/04
CPC分类号： G10C3/04 , G10C3/06 , Y10T29/49895

17. 发明授权

US2486338A Piano construction 失效
公开(公告)号：US2486338A
公开(公告)日：1949-10-25
申请号：US70010246
申请日：1946-09-28
申请人： WURLITZER CO
发明人： SPERRY RALPH W E , HORTH JACK C
IPC分类号： G10C3/04
CPC分类号： G10C3/04 , G10C1/00

18. 发明授权

US1985746A Piano construction 失效
标题翻译：钢琴构造
公开(公告)号：US1985746A
公开(公告)日：1934-12-25
申请号：US72715734
申请日：1934-05-23
申请人： SETTERGREN BROR K
发明人： SETTERGREN BROR K
IPC分类号： G10C3/04
CPC分类号： G10C3/04

19. 发明授权

US1769284A Piano 失效
标题翻译：钢琴
公开(公告)号：US1769284A
公开(公告)日：1930-07-01
申请号：US13876226
申请日：1926-09-30
申请人： BETZ WILLIAM G
发明人： BETZ WILLIAM G
IPC分类号： G10C3/04
CPC分类号： G10C3/04 , G10C3/06

20. 发明授权

US10418003B2 Keyboard device and keyboard instrument 有权
公开(公告)号：US10418003B2
公开(公告)日：2019-09-17
申请号：US15920084
申请日：2018-03-13
申请人： CASIO COMPUTER CO., LTD.
发明人： Hirokazu Taniguchi
IPC分类号： G10C3/18 , G10C3/04 , G10C3/12
摘要： A keyboard device is provided whose entire device body can be compactified even if a hammer member length in its front and rear direction is increased and a keyboard instrument including the keyboard device. The keyboard device includes a plurality of keys, a transmission member which is rotated in response to a key depression operation performed on a key among the plurality of keys, and a hammer member which is rotated in response to rotation of the transmission member and applies an action load to the key, in which the hammer member includes a hammer arm and a hammer head provided on a front side of the hammer arm, and the hammer arm is rotated around a hammer rotation center located on a rear side of the hammer arm in response to the key depression operation performed on the key.

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