公开(公告)号：EP0713205A3

公开(公告)日：1997-01-22

申请号：EP95307721.1

申请日：1995-10-30

申请人： STEINWAY MUSICAL PROPERTIES, INC.

发明人： Jones, Marvin Scott ,  Dickten, Dirk ,  Green, Gary Mark ,  Oleksy, Paul David ,  Sims, Gregory Ray ,  Tomescu, Ludwig ,  Berger, Robert Charles

IPC分类号： G10C3/22

CPC分类号： G10C3/22

摘要： An escapement action (200) for a piano includes a hammershank (132) having a first end mounted to pivot relative to the piano and a second end carrying a hammer (130) to strike a tensioned string (140) of the piano, with a knuckle (150) disposed therealong between the first and second ends. A repetition support (110) bearing against a key (102) of the piano is mounted to pivot relative to the piano in response to depression of the key (102). A jack (120) has a first portion extending from a pivot connection (121) with the repetition support and defines a jack surface disposed for engagement with a knuckle (150) surface, the jack (120) arranged for escape of the jack surface from engagement with the knuckle surface during depression of the key (102). A spring (160) urges the jack toward an "at rest" position with the jack surface in engagement with the knuckle surface. A jack retainer assembly (204) dependent from the hammershank (132) between the second end and the knuckle includes a cushion surface (210) positioned to retain the jack (120) in "at rest" position in opposition to force of the spring.

公开(公告)号：EP0457619A2

公开(公告)日：1991-11-21

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.

摘要翻译： 具有着色为类似于天然象牙的合成材料的主体的钢琴键盖限定了具有峰 - 谷纹理的随机取向和多个细孔的顶部游戏表面，以复制天然象牙的表面。 多个孔具有通常在0.0002至0.0012英寸（0.005至0.030mm）范围内的直径。 合成材料选自丙烯酸聚合物，聚氨酯，环氧树脂等。 还描述了用于形成这种钢琴键盖和具有本发明的键盖的钢琴的方法。

公开(公告)号：EP0713205A2

公开(公告)日：1996-05-22

申请号：EP95307721.1

申请日：1995-10-30

申请人： STEINWAY MUSICAL PROPERTIES, INC.

发明人： Jones, Marvin Scott ,  Dickten, Dirk ,  Green, Gary Mark ,  Oleksy, Paul David ,  Sims, Gregory Ray ,  Tomescu, Ludwig ,  Berger, Robert Charles

IPC分类号： G10C3/22

CPC分类号： G10C3/22

摘要： An escapement action (200) for a piano includes a hammershank (132) having a first end mounted to pivot relative to the piano and a second end carrying a hammer (130) to strike a tensioned string (140) of the piano, with a knuckle (150) disposed therealong between the first and second ends. A repetition support (110) bearing against a key (102) of the piano is mounted to pivot relative to the piano in response to depression of the key (102). A jack (120) has a first portion extending from a pivot connection (121) with the repetition support and defines a jack surface disposed for engagement with a knuckle (150) surface, the jack (120) arranged for escape of the jack surface from engagement with the knuckle surface during depression of the key (102). A spring (160) urges the jack toward an "at rest" position with the jack surface in engagement with the knuckle surface. A jack retainer assembly (204) dependent from the hammershank (132) between the second end and the knuckle includes a cushion surface (210) positioned to retain the jack (120) in "at rest" position in opposition to force of the spring.

摘要翻译： 锤锤具有安装成相对于钢琴枢转的第一端和承载锤的第二端以撞击钢琴的张紧绳，其中在第一和第二端之间设置有转向节。 响应于键的按压，安装有抵靠钢琴的键的重复支撑件相对于钢琴枢转。 千斤顶具有从与重复支撑件的枢转连接部延伸的第一部分，并且限定了布置成与转向节表面接合的千斤顶表面，所述千斤顶设置成在按压钥匙期间使杰克表面与转向节表面的接合脱离。 弹簧将千斤顶推向“静止”位置，使千斤顶表面与转向节表面接合。 取决于第二端和转向节之间的锤锤的千斤顶保持器组件包括一个缓冲表面，该缓冲表面被定位成与插座的弹簧力相反地保持在“静止”位置。

公开(公告)号：EP0398519A3

公开(公告)日：1991-07-31

申请号：EP90304392.5

申请日：1990-04-24

申请人： STEINWAY MUSICAL PROPERTIES, INC.

发明人： Lombino, James M.

IPC分类号： G10C3/18

CPC分类号： G10C3/18

摘要： A piano forte hammer (10) has an elongated head (12) with a nose (24) defining side surfaces (26), and a felt body (14) disposed to extend about the nose. The felt body has a nose region (15) for contact upon a piano string and first and second tail regions (20, 22) having surfaces affixed in contact upon the head side surfaces. The felt body, in the tail regions only, contains a predetermined measured amount of acrylic copolymer, the felt body nose region being essentially free of the acrylic copolymer. The hammer may be formed by a process including the steps of: providing a first volume of aqueous solution containing the predetermined measured amount of acrylic copolymer in a slot; disposing a first tail region of the felt body, prior to assembly about the nose, in solution in the slot; allowing the felt body to draw essentially all of the solution from the slot, into the first tail region only, by natural wicking action; and repeating the process for the second tail region of the felt body, the nose region being left essentially free of acrylic copolymer.

公开(公告)号：EP0398519B1

公开(公告)日：1994-06-01

申请号：EP90304392.5

申请日：1990-04-24

申请人： STEINWAY MUSICAL PROPERTIES, INC.

发明人： Lombino, James M.

IPC分类号： G10C3/18

CPC分类号： G10C3/18

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：EP0764933A2

公开(公告)日：1997-03-26

申请号：EP96401974.9

申请日：1996-09-17

申请人： STEINWAY MUSICAL PROPERTIES, INC.

发明人： Youse, William S.

IPC分类号： G10C3/12

CPC分类号： G10C3/12

摘要： A piano includes a balance rail defining a balance surface (15), and a piano key assembly (160) including an elongated body defining a playing surface (22). The piano key assembly (160) is supported by the balance surface (15) for pivoting movement in response to application of playing pressure applied to the playing surface (22). The balance surface (15) is disposed in a first plane (26) and the playing surface is disposed in a second plane (28) vertically spaced from the first plane (26). A leveling arm (31) has a first end (32) attached to the elongated body (18) and a cantilevered, second, free end (34), and defines a leveling surface (36) in opposition to the balance surface (15). A leveling adjustment element (38) includes a segment extending between the elongated body (18) and the free end (34) of the leveling arm (31). The segment has a length adjustable for changing the vertical distance between the first plane (26) of the balance surface and the second plane (28) of the playing surface.

摘要翻译： 钢琴包括限定平衡表面（15）的平衡导轨和包括限定游戏表面（22）的细长主体的钢琴键组件（160）。 钢琴键组件160由平衡表面15支撑，以响应施加到演奏表面22上的演奏压力而枢转运动。 平衡表面（15）设置在第一平面（26）中，并且游戏表面设置在与第一平面（26）垂直间隔开的第二平面（28）中。 平整臂（31）具有附接到细长主体（18）的第一端（32）和悬臂式第二自由端（34），并且限定与平衡表面（15）相对的调平表面（36） 。 调平调节元件（38）包括在细长主体（18）和调平臂（31）的自由端（34）之间延伸的部分。 该段具有可调节的长度，用于改变平衡表面的第一平面（26）和游戏表面的第二平面（28）之间的垂直距离。

公开(公告)号：EP0457619B1

公开(公告)日：1996-01-24

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

公开(公告)号：EP0398519A2

公开(公告)日：1990-11-22

申请号：EP90304392.5

申请日：1990-04-24

申请人： STEINWAY MUSICAL PROPERTIES, INC.

发明人： Lombino, James M.

IPC分类号： G10C3/18

CPC分类号： G10C3/18

摘要： A piano forte hammer (10) has an elongated head (12) with a nose (24) defining side surfaces (26), and a felt body (14) disposed to extend about the nose. The felt body has a nose region (15) for contact upon a piano string and first and second tail regions (20, 22) having surfaces affixed in contact upon the head side surfaces. The felt body, in the tail regions only, contains a predetermined measured amount of acrylic copolymer, the felt body nose region being essentially free of the acrylic copolymer. The hammer may be formed by a process including the steps of: providing a first volume of aqueous solution containing the predetermined measured amount of acrylic copolymer in a slot; disposing a first tail region of the felt body, prior to assembly about the nose, in solution in the slot; allowing the felt body to draw essentially all of the solution from the slot, into the first tail region only, by natural wicking action; and repeating the process for the second tail region of the felt body, the nose region being left essentially free of acrylic copolymer.

摘要翻译： 一种钢琴锻造锤（10）具有细长的头部（12），其具有限定侧表面（26）的鼻部（24）和设置成围绕鼻子延伸的毡体（14）。 毡体具有用于接触钢琴琴弦的鼻部区域（15）和具有在头部侧表面上接触的表面的第一和第二尾部区域（20,22）。 仅在尾部区域中的毡体含有预定量的丙烯酸共聚物，毡体鼻部区域基本上不含丙烯酸共聚物。 锤可以通过包括以下步骤的方法形成：在槽中提供含有预定测量量的丙烯酸共聚物的第一体积的水溶液; 在围绕鼻子组装之前，在所述槽中的溶液中布置所述毡体的第一尾部区域; 允许毛毡体基本上从槽中抽出所有溶液，仅通过自然的芯吸作用进入第一尾部区域; 并且重复毛毯本体的第二尾部区域的过程，鼻部区域基本上不含丙烯酸共聚物。