公开(公告)号：US5196638A

公开(公告)日：1993-03-23

申请号：US720714

申请日：1991-06-25

申请人： Hajime Hayashida ,  Satoshi Inoue ,  Toshiaki Sakai

发明人： Hajime Hayashida ,  Satoshi Inoue ,  Toshiaki Sakai

IPC分类号： G10C3/16 ,  G10C3/26

CPC分类号： G10C3/26

摘要： A muting device of an upright piano which includes butt, a wippen, a capstan button and a muting mechanism (15). This butt rotates with a hammer which strikes a string of the upright piano. In addition, a jack is provided to come in contact with a lower surface of the butt, and rotates the butt in response to displacement of the key. The jack is supported by the wippen such that it can freely rotate. The capstan button is provided at a back edge portion of the key to transmit displacement of the key to the wippen. The muting mechanism is designed to reduce a string-striking stroke by rotating the hammer. Further, there is provided a key-displacement-transmission-rate changing mechanism. When reducing the string-striking stroke by the muting mechanism, this mechanism raises a displacement transmission point, at which displacement of the key is transmitted to the wippen, toward a rotation center of the key from the capstan button. Preferably, this mechanism includes another capstan button which is placed on an upper surface of the key at a position between the capstan button and rotation center of the key.

公开(公告)号：US5616880A

公开(公告)日：1997-04-01

申请号：US519424

申请日：1995-08-25

申请人： Hajime Hayashida ,  Takashi Aoyagi ,  Satoshi Inoue ,  Ringi Nozue ,  Kiyoshi Kawamura ,  Shigeaki Sato

发明人： Hajime Hayashida ,  Takashi Aoyagi ,  Satoshi Inoue ,  Ringi Nozue ,  Kiyoshi Kawamura ,  Shigeaki Sato

IPC分类号： G10C3/16 ,  G10C5/00 ,  G10D15/00 ,  G10F1/22 ,  G10H1/34

CPC分类号： G10C5/005

摘要： An acoustic upright piano, an electronic sound system and a hammer stopper form in combination a keyboard musical instrument for generating acoustic sounds in an acoustic sound mode and electronic sounds in an electronic sound mode, and the hammer stopper has a rotatable shaft extending in a lower space under damper blocks of damper assemblies, cushion members projecting into an upper space over the damper blocks and connecting brackets provided between the rotatable shaft and the cushion members, thereby perfectly interrupting hammer motions before an impact on strings in the electronic sound mode.

摘要翻译： 声立式钢琴，电子声音系统和锤子止动器组合起来以键盘乐器形成声音模式中的声音和电子声音模式的电子声音，并且音锤止动器具有在下部延伸的可旋转轴 阻尼器组件的阻尼器块下方的空间，缓冲构件突出到阻尼器块上方的上部空间和设置在可旋转轴和缓冲构件之间的连接托架，从而在电子声音模式下对琴弦的撞击之前完全中断琴锤运动。

公开(公告)号：US5583306A

公开(公告)日：1996-12-10

申请号：US464045

申请日：1995-06-05

申请人： Hajime Hayashida ,  Satoshi Inoue ,  Takashi Aoyagi

发明人： Hajime Hayashida ,  Satoshi Inoue ,  Takashi Aoyagi

IPC分类号： G10C1/02 ,  G10C3/16 ,  G10C5/00 ,  G10D15/00

CPC分类号： G10C5/005 ,  G10C3/161 ,  G10C3/22 ,  G10C3/26

摘要： A keyboard musical instrument selectively generates acoustic sounds and electronic sounds depending upon a mode selected by a player, and has a hammer stopper for interrupting hammers before strikes at strings and an escape accelerator for accelerating an escape of a jack from the hammer assembly in the silent mode earlier than an escape in the acoustic sound mode, thereby preventing the hammer assembly from capture between the jack and the hammer stopper without deterioration of the piano key touch.

摘要翻译： 键盘乐器根据玩家选择的模式选择性地产生声音和电子声音，并且具有用于在琴弦撞击之前中断琴锤的槌子止动器和用于加速千斤顶从锤组件逃脱的静音 模式比在声音模式中的逸出更早，从而防止琴弦组件在琴颈和琴座之间被捕获，而不会降低钢琴键触摸。

公开(公告)号：US5557052A

公开(公告)日：1996-09-17

申请号：US413632

申请日：1995-03-30

申请人： Hajime Hayashida ,  Satoshi Inoue

发明人： Hajime Hayashida ,  Satoshi Inoue

IPC分类号： G10F1/02 ,  G10C1/04 ,  G10C3/16 ,  G10H1/34 ,  G10C3/18

CPC分类号： G10C3/16

摘要： A piano has a regulating button mechanism so as to cause a jack to escape from a hammer assembly, and the regulating button mechanism has a first regulating button and a second regulating button with which the jack is selectively brought into contact; and the jack imparts a force variable in dependence on the regulating button to the hammer assembly so as to generate loud or soft tones.

摘要翻译： 一种钢琴具有调节按钮机构，以使千斤顶从锤组件中逸出，并且调节按钮机构具有第一调节按钮和第二调节按钮，通过该第二调节按钮和第二调节按钮可以选择性地与插孔接触; 并且千斤顶根据锤组件的调节按钮赋予力变量，以产生大或软的音调。

公开(公告)号：US5353671A

公开(公告)日：1994-10-11

申请号：US111289

申请日：1993-08-24

申请人： Satoshi Inoue ,  Hajime Hayashida

发明人： Satoshi Inoue ,  Hajime Hayashida

IPC分类号： G10C3/16 ,  G10C3/24 ,  G10C3/18

CPC分类号： G10C3/24

摘要： A key action mechanism incorporated in an upright piano is accompanied with a repetition mechanism having a repetition lever rotatably supported by a butt and pushed by a jack after an escape from the butt for producing a gap between a leading end thereof and a back check, therefore, the butt and, accordingly, hammer assembly can rotate backwardly over a predetermined angle due to the gap, after the striking or after the escape of the jack, and, as a result, the hammer assembly is prevented from double-strike.

摘要翻译： 结合在立式钢琴中的关键作用机构伴随着一种重复机构，其具有由臀部可旋转地支撑的重复杆，并且在从对接件逸出之后由千斤顶推动以在其前端和后支架之间产生间隙，因此 ，因此，锤头组件可以由于间隙，在打击之后或在千斤顶的逸出之后向后旋转预定的角度，结果防止了锤组件的双击。

公开(公告)号：US5170000A

公开(公告)日：1992-12-08

申请号：US539221

申请日：1990-06-15

申请人： Hajime Hayashida ,  Toshiya Yamada ,  Kinya Nozaki ,  Akira Takemura

发明人： Hajime Hayashida ,  Toshiya Yamada ,  Kinya Nozaki ,  Akira Takemura

IPC分类号： G10C3/06

CPC分类号： G10C3/06

摘要： In a sound board assembly for a musical instrument, a plurality of straight-grain wood veneers are joined together in a plane to form a plate unit having front and rear surfaces. Each of the wood veneers has two lateral sides which extend in a direction along the grain of the wood veneer. The lateral sides of the wood veneer serve respectively as a pair of abutments. One of the pair of abutments of one of each pair of adjacent wood veneers is abutted against and joined to one of the pair of abutments of the other wood veneer. A plurality of voids are formed inside of the plate unit. Substantially, the voids are formed along a neutral plane of the plate unit which is in the middle of the two surfaces. Thanks to the voids in the plate unit, the above sound board assembly is capable of sufficiently exhibiting the merit of a woody sound, capable of setting the sound quality artificially and freely, and capable of realizing the woody sound that has more warmth than in the case where high-quality natural woods are used.

公开(公告)号：US4924742A

公开(公告)日：1990-05-15

申请号：US362502

申请日：1989-06-06

申请人： Motoichi Numata ,  Kinya Nozaki ,  Hajime Hayashida ,  Toshiaki Sakai

发明人： Motoichi Numata ,  Kinya Nozaki ,  Hajime Hayashida ,  Toshiaki Sakai

IPC分类号： G10C3/26

CPC分类号： G10C3/26

摘要： A mechanical keyboard according to the present invention has a main sostenuto pedal mechanism for holding off a damper associated with a key depressed and an auxiliary sostenuto pedal mechanism provided for keys of a bass range for holding off the associated damper or dampers, and the auxiliary pedal is provided in the vicinity of a soft pedal for easy depression.

公开(公告)号：US4524669A

公开(公告)日：1985-06-25

申请号：US381715

申请日：1982-05-24

申请人： Jun Yamamoto ,  Hajime Hayashida ,  Hiroyoshi Takahashi

发明人： Jun Yamamoto ,  Hajime Hayashida ,  Hiroyoshi Takahashi

IPC分类号： G10C3/12

CPC分类号： G10C3/12

摘要： A key-driving/detecting mechanism for performing automatically a keyboard instrument is constituted by a plurality of keys arranged on a key bed, each key being rotatable about a balance pin secured to a balance rail, and an electromagnetic device interposed between a lower surface of each key and the key bed at a position to the rear of the balance pin. Each electromagnetic device comprises an electromagnetic oil mounted on the key bed and a permanent magnet secured to a rear surface of the key. The simplicity of the key-driving/detecting mechanism is implemented by this disposition of the electromagnetic device. In a modification a pair of electromagnetic devices are provided in front of and in rear of the balance pin.

摘要翻译： 用于自动执行键盘乐器的按键驱动/检测机构由配置在键盘上的多个键构成，每个键可围绕固定于平衡轨的平衡销旋转，以及插入在 每个键和键床位于平衡针后部的位置。 每个电磁装置包括安装在钥匙床上的电磁油和固定到钥匙后表面的永磁体。 钥匙驱动/检测机构的简单性通过电磁装置的这种布置来实现。 在一个变型中，一对电磁装置设置在平衡销的前面和后面。

公开(公告)号：US4135430A

公开(公告)日：1979-01-23

申请号：US800859

申请日：1977-05-26

申请人： Hajime Hayashida

发明人： Hajime Hayashida

IPC分类号： G10C3/18

CPC分类号： G10C3/18

摘要： In a coupling construction of a wooden base with a striking head of a piano hammer, at least one gap is left between a longitudinal end of the striking head and the longitudinal end face of the wooden base which serves as a refuge for unexpected deformation of the elastic insert, thereby avoiding separation of the striking head from the wooden base and development of cracks in the wooden base when striking the string.

摘要翻译： 在具有钢琴锤的打击头的木制基座的联接结构中，在打击头的纵向端部和木质基座的纵向端面之间留有至少一个间隙，其作为避免意外变形的避难所 弹性插入物，从而避免撞击头与木质基座分离，并且在撞击绳子时在木质基座中产生裂纹。