公开(公告)号：EP1282111A4

公开(公告)日：2004-06-23

申请号：EP01958490

申请日：2001-08-24

申请人： TOKYO YUSYO CO LTD

发明人： MUTOU NORITAKA

IPC分类号： G10C3/12 ,  G10H1/34 ,  G10D11/00

CPC分类号： G10C3/12 ,  G10H1/34 ,  G10H1/342 ,  G10H2220/251 ,  G10H2230/145

摘要： An extremely easy-to-play keyboard for musical instrument capable of forming any keyboard rows such as a semitone arrangement to a diatessaron arrangement and a chord arrangement with one keyboard substrate, wherein the keyboard substrate is formed so that the keyboard is formed by disposing, parallel with each other, a large number of key substrates (1) extending in the longitudinal direction of the keyboard with a difference of semitone, installing a plurality of key top mounting parts (5) on each key substrate (1) in the longitudinal direction, and installing the key tops (4) on any key top mounting parts, or by combining various types of keyboard rows with each other, or disposing the keys positioned adjacent laterally to each other in all or a part of the keyboard rows with a difference of minor third and those positioned adjacent longitudinally to each other with a difference of whole tone in the direction from the front side to the right rear side.

公开(公告)号：EP0917704B1

公开(公告)日：2002-05-22

申请号：EP97909270.7

申请日：1997-09-15

申请人： Cerrato Pianoforti

发明人： CERRATO, Davide

IPC分类号： G10C3/12

CPC分类号： G10C3/12

摘要： A system for balancing upright piano key mechanisms consists in weighting the key (1) in its front portion (at 11), opposite to the portion (5) where the key downweight is usually placed, and consequently in weighting (at 15), by means of a weight simulating the weight of the hammer, also the portion where the hammer (7) rests, the hammer in turn resting, through the wippen (9), on the rear portion of the key, so as to create a balance between the front portion and the rear portion of the key itself.

公开(公告)号：EP0639824B1

公开(公告)日：2001-11-21

申请号：EP94112991.8

申请日：1994-08-19

申请人： YAMAHA CORPORATION

发明人： Koseki, Shinya, c/o Yamaha Corporation

IPC分类号： G10C3/12 ,  G01V8/12

CPC分类号： G01V8/20 ,  G10C3/12 ,  G10H1/344 ,  G10H2220/305

公开(公告)号：EP0384120B1

公开(公告)日：1998-03-25

申请号：EP90100977.9

申请日：1990-01-18

申请人： FATAR S.r.l.

发明人： Franz, Reinhard ,  Dost, Walfried

IPC分类号： G10C3/12

CPC分类号： G10H1/346 ,  G10C3/12

公开(公告)号：EP0665528A3

公开(公告)日：1997-12-10

申请号：EP94102503.3

申请日：1994-02-18

申请人： YAMAHA CORPORATION

发明人： Kaneko, Yasutoshi, c/o Yamaha Corporation ,  Kawamura, Kiyoshi, c/o Yamaha Corporation ,  Koseki, Shinya, c/o Yamaha Corporation

IPC分类号： G10C3/12

CPC分类号： G10C5/005 ,  G10H1/344

摘要： An acoustic piano (100) is equipped with an electronic sound generating system (200), and a key bed structure (310) is angularly movable between an acoustic sound mode and an electronic sound mode for changing gaps between hammer heads (145) and sets of strings (150), thereby allowing a player to perform a music with acoustic sounds or synthesized sounds.

公开(公告)号：EP0655727A3

公开(公告)日：1997-10-22

申请号：EP94118801.3

申请日：1994-11-29

申请人： YAMAHA CORPORATION

发明人： Kawamura, Kiyoshi, c/o Yamaha Corporation ,  Tajima, Toshio, c/o Yamaha Corporation ,  Koseki, Shinya, c/o Yamaha Corporation

IPC分类号： G10C3/12 ,  G10C5/00

CPC分类号： G10C5/005 ,  G10C3/12

摘要： A keyboard musical instrument lowers a key bed (1b) together with a keyboard (2), key action mechanisms (3) and hammer mechanisms (43) in a silent mode, and a stopper mechanism (3000) and a make-up mechanism (5000) cause the depressed keys to actuate the key action mechanisms (43) and damper mechanisms (40) as similar to an acoustic sound mode, thereby allowing a player to feel the key touch usual in a performance without an acoustic sound.

公开(公告)号：EP0457619A3

公开(公告)日：1992-05-20

申请号：EP91304488.9

申请日：1991-05-17

申请人： STEINWAY MUSICAL PROPERTIES, INC. ,  RENSSELAER POLYTECHNIC INSTITUTE

发明人： Calabrese, Salvadore J. ,  Scarton, Henry A. ,  Murray, Frank S. ,  Ettles, Christopher M. ,  Kennedy, Warren C. ,  Dinc, Saim ,  Jlidi, Bessem ,  Strong, William Y.

IPC分类号： G10C3/12

CPC分类号： G10C3/12 ,  B44F9/06

摘要： A piano key cover having a body of synthetic material pigmented to resemble natural ivory defines a top playing surface having a random orientation of peak-to-valley texture and a multiplicity of fine pores to replicate a surface of natural ivory. A multiplicity of the pores have diameters generally in the range of 0.0002 to 0.0012 inch (0.005 to 0.030 mm). The synthetic material is selected from the group consisting of acrylic polymer, polyurethane, epoxy and the like. A method for forming such a piano key cover and a piano having key covers of the invention are also described.

公开(公告)号：EP0323425A3

公开(公告)日：1990-10-17

申请号：EP88850436.2

申请日：1988-12-23

申请人： YAMAHA CORPORATION

发明人： Oshima, Yataka

IPC分类号： C08L89/00 ,  G10C3/12

CPC分类号： G10C3/125 ,  C08L89/005 ,  C08L75/04 ,  C08L2666/02

摘要： In production of a casein-type artificial key material for keyboard musical instruments, fine grains of an elastomer such as polyurethane elastomer are added to a mixture to be kneaded together so that, in the structure of the product, islanded elas­tomer should be uniformly dispersed in the matrix of casein. Inbred brittleness of casein is much improved by inclusion of the elastomer and strong bond between casein and the elastomer well removes the danger of interface separation.

公开(公告)号：EP0323425A2

公开(公告)日：1989-07-05

申请号：EP88850436.2

申请日：1988-12-23

申请人： YAMAHA CORPORATION

发明人： Oshima, Yataka

IPC分类号： C08L89/00 ,  G10C3/12

CPC分类号： G10C3/125 ,  C08L89/005 ,  C08L75/04 ,  C08L2666/02

摘要： In production of a casein-type artificial key material for keyboard musical instruments, fine grains of an elastomer such as polyurethane elastomer are added to a mixture to be kneaded together so that, in the structure of the product, islanded elas­tomer should be uniformly dispersed in the matrix of casein. Inbred brittleness of casein is much improved by inclusion of the elastomer and strong bond between casein and the elastomer well removes the danger of interface separation.

摘要翻译： 在生产用于键盘乐器的酪蛋白型人造钥匙材料时，将诸如聚氨酯弹性体的弹性体的细颗粒加入混合物中以捏合在一起，使得在产品的结构中，岛状弹性体应均匀分散在 酪蛋白的基质。 酪蛋白和弹性体之间的粘合强度很好地消除了界面分离的危险，因此酪蛋白的近交交联脆性大大提高。

公开(公告)号：EP0058339A1

公开(公告)日：1982-08-25

申请号：EP82100724.2

申请日：1982-02-02

申请人： Apel, Siegfried ,  Apel, Marlene

发明人： Apel, Siegfried ,  Apel, Marlene

IPC分类号： G09B15/02 ,  G10C3/12

CPC分类号： G09B15/08 ,  G10C3/12

摘要： Bei der Erfindung handelt es sich um ein Musikinstrument mit Tastatur, insbesondere um ein Klavier mit Klaviatur. Die weißen Tasten bzw. Untertasten (2) der Tastatur, die die C-dur-Tonleiter bilden, sind in zwei verschiedenen Breiten gehalten (Breiten b und B). Dabei sind die untereinander gleichbreiten Tasten (2) der Töne H und C sowie E und F in ihrer Breite (b) gegenüber den untereinander ebenfalls gleichbreiten Tasten (2) der Töne D, G und A um jeweils ein Viertel deren Breite (B) verschmälert. Die Breite (b) der Tasten H, C, E oder F verhält sich also zur Breite (B) der Tasten D, G oder A wie 3 : 4. Es lassen sich somit auf die bzw. an die Tastatur Schablonen (4) mit gleichbreiten Feldern (5) an- bzw. auflegen, deren Breite gleich ist der Hälfte der Breite (B) einer Taste D, G oder A, wodurch alle Tonleiter, Terzen, Drei- und Vierklänge samt ihren Umkehrungen, Haupt-und Nebenintervalle, Kadenzen und Transponierungen usw. darstellbar sind.

摘要翻译： 在本发明中，它是与键盘乐器，尤其是钢琴键盘。 白键或子密钥（2）的键盘，其形成C-大音阶的，在两个不同的宽度（宽度B和B）保持。 在此，彼此相同的广泛的键（2）的音调的是H，C和E和F在其宽度（b）缩小相对于所述彼此也是音符D，G和A的宽度的每一种情况下四分之一（B）的等宽的键（2） ， 的宽度（b）的密钥H，C，E的或F从而表现到密钥D，G的宽度（B），或A为3：4。因此，可以在键盘上或到模板（4） 相等宽度字段（5）上或挂断，其宽度等于一个按钮D，G，或A，的宽度的一半（B），由此所有的规模，三分之二，三个和四个音调与他们的倒位，主要和次要的间隔节奏 和换位等被显示。