公开(公告)号：US2532286A

公开(公告)日：1950-12-05

申请号：US75318647

申请日：1947-06-07

申请人： BROWN ALEXANDER P

发明人： BROWN ALEXANDER P

IPC分类号： G10C1/04

CPC分类号： G10C1/04 ,  G10C1/00

公开(公告)号：US10311836B2

公开(公告)日：2019-06-04

申请号：US15712228

申请日：2017-09-22

申请人： YAMAHA CORPORATION

发明人： Akito Ohba ,  Hiroshi Harimoto ,  Shunsuke Ichiki ,  Ichiro Osuga

IPC分类号： G10C3/168 ,  G10C1/04 ,  G10H1/34 ,  G10C3/163

摘要： A support assembly includes a support rotatable along a first surface with respect to a support rail, a repetition lever rotatable on the support, and a jack rotatable on the support and disposed to at least partially overlaps the repetition lever. The repetition lever includes a first contact portion which makes contact with a regulating portion which regulates rotation, the jack includes a second contact portion which makes contact with the regulating portion which regulates rotation, and the repetition lever and the jack are provided so that the first contact portion and the second contact portion overlap each other.

公开(公告)号：US09959843B2

公开(公告)日：2018-05-01

申请号：US15547619

申请日：2015-12-18

申请人： YAMAHA CORPORATION

发明人： Kenta Ohnishi

IPC分类号： G10C1/04 ,  G10H1/32 ,  G10C3/18 ,  G10C3/06 ,  G10C3/16

CPC分类号： G10C1/04 ,  G10C3/06 ,  G10C3/166 ,  G10C3/18 ,  G10H1/045 ,  G10H1/32 ,  G10H3/146 ,  G10H2210/271 ,  G10H2220/461 ,  G10H2230/011 ,  G10H2240/311 ,  H04R7/04

摘要： A sound producing apparatus includes: a plurality of sound producing members with differing oscillation frequencies; dampers each corresponding to a respective sound producing member and suppressing vibration by contacting the corresponding sound producing members; a damper operation mechanism that moves each damper, thereby controlling a state of contact of the damper with a corresponding sound producing members; a soundboard that undergoes sympathetic resonance with sound producing members; a vibrator that vibrates the soundboard; an acquisition unit configured to acquire an audio signal; a signal output unit configured to: generate a drive signal for driving the vibrator with a vibration corresponding to the acquired audio signal; and output the drive signal to the vibrator; and a damper control unit configured to drive the damper operation mechanism to change a state of contact between the sound producing members and their corresponding dampers, based on frequency distribution of acquired audio signal.

公开(公告)号：US5932820A

公开(公告)日：1999-08-03

申请号：US961216

申请日：1997-10-30

申请人： Tsutomu Kihara

发明人： Tsutomu Kihara

IPC分类号： G10C1/04 ,  G10C3/16 ,  G10C3/26 ,  G10C3/00

CPC分类号： G10C3/26

摘要： A damper lever for a grand piano is provided for realizing a significantly cost reduction, a higher dimensional accuracy at a fabricating stage and a higher weathering resistance, and for permitting lead pieces to be stably fixed in a lever body without causing fracture or deformation of the lever body. The damper lever for a grand piano is composed of a lever body formed of a molded plastic material, and having a fitting recess formed on one side surface thereof and an inserting hole extending from the fitting recess and open to the other side surface of the lever body, and a plurality of lead pieces each having a head and a shaft extending from the head. Each lead piece has its head inserted into the inserting hole of the lever body and the head fitted in the fitting recess of the lever body, and a top end of the shaft is caulked to fix each lead piece in the lever body.

摘要翻译： 提供了一种用于大钢琴的减震器杠杆，用于实现显着的成本降低，在制造阶段具有更高的尺寸精度和更高的耐候性，并且允许引导件被稳定地固定在杠杆主体中而不会引起断裂或变形 杠杆体。 用于大钢琴的减震器杆由模制塑料材料形成的杠杆体构成，并且具有形成在其一个侧表面上的装配凹部和从所述装配凹部延伸并且向所述杠杆的另一侧面开口的插入孔 主体和多个引导件，每个引脚具有头部和从头部延伸的轴。 每个引导件的头部插入杠杆主体的插入孔中，并且头部装配在杠杆主体的装配凹部中，并且轴的顶端被铆接以将每个引导片固定在杠杆体中。

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：US4211142A

公开(公告)日：1980-07-08

申请号：US974217

申请日：1978-12-29

申请人： Harold A. Conklin, Jr.

发明人： Harold A. Conklin, Jr.

IPC分类号： G10C1/04 ,  G10C3/02 ,  G10C3/06

CPC分类号： G10C1/04 ,  G10C3/02

摘要： A sound reflector for use with a grand piano to reflect sound from the underside of the soundboard toward the rear side of the instrument, the reflector comprising a large panel of sound reflective material underlying the soundboard at an inclined angle with its uppermost side edges adjacent the undersurface of the front side wall of the instrument and with its lowermost side edge at floor level; the reflective panel may be planar or its sound reflecting surface may be convex in cross-section in one or more directions; brackets may be provided to detachably mount the panel to the front side wall of the case or the panel may be permanently attached to the case, as by means of hinges; and means may be provided to suspend the panel so that its lowermost side edge will clear the floor when the piano is moved.

摘要翻译： 一种用于与钢琴一起使用的声音反射器，以将声音从声板的底侧朝向仪器的后侧反射，反射器包括一个大面板的声音反射材料，该声音反射材料位于音板的下方，倾斜角与其最上侧的边缘相邻 仪器前侧壁的下表面，其最下侧边缘处于地面水平; 反射面板可以是平面的或其声音反射表面可以在一个或多个方向上的横截面中是凸的; 可以提供支架以将面板可拆卸地安装到壳体的前侧壁，或者面板可以通过铰链永久地附接到壳体; 并且可以提供装置来悬挂面板，使得当钢琴移动时，其最下侧的边缘将清除地板。

公开(公告)号：US4130044A

公开(公告)日：1978-12-19

申请号：US722398

申请日：1976-09-13

申请人： Takashi Yamada ,  Yasutoshi Kaneko ,  Kazuo Murakami

发明人： Takashi Yamada ,  Yasutoshi Kaneko ,  Kazuo Murakami

IPC分类号： G10C1/04 ,  G10C3/02

CPC分类号： G10C1/04

摘要： A keyboard musical instrument such as a piano of relatively large size and heavy construction can be separated into two casings, each of which fully contains respective coacting elements of the instrument, for easy and free transportation, storage and access from outside.

摘要翻译： 键盘乐器如具有相对较大尺寸和重型结构的钢琴可以分成两个壳体，每个壳体完全包含仪器的各自的共同作用元件，以便于从外部容易且自由地运输，存储和进入。

公开(公告)号：US10657930B2

公开(公告)日：2020-05-19

申请号：US16432759

申请日：2019-06-05

申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO

发明人： Hirohiko Miura

IPC分类号： G10C3/02 ,  G10C1/04

摘要： A topboard reflection preventer for a grand piano, which is capable of positively preventing lighting from being reflected by an open topboard, while maintaining excellent appearance of a piano body. The topboard reflection preventer for a grand piano is attached to an openable and closable topboard formed by a topboard rear and a topboard front, and prevents lighting from above from being reflected by the topboard in a state of the topboard held open in an inclined position. The topboard reflection preventer includes a reflection preventer body attached to the topboard rear and the topboard front folded onto the topboard rear, in a state covering whole upper surfaces of the topboard rear and the topboard front, and a holding member for holding the reflection preventer body so as to prevent the reflection preventer body from falling off the topboard held open in the inclined position.

公开(公告)号：US10184656B2

公开(公告)日：2019-01-22

申请号：US15718563

申请日：2017-09-28

申请人： KAWAI MUSICAL INSTRUMENTS MANUFACTURING CO., LTD.

发明人： Mitsuo Yamashita

IPC分类号： F21V33/00 ,  F21V7/00 ,  G10C1/04 ,  G10C3/04 ,  F21S4/24 ,  F21Y103/10 ,  F21Y115/10 ,  G10C3/06

摘要： Provided is a grand piano comprising a rim made of a transparent material, an outer layer formed of a semi-light transmitting material, an inner layer and a bottom layer, which are formed of a material reflecting light received through the rim, and a light source comprising a plurality of point light sources to emit light toward the rim.

公开(公告)号：US20170061937A1

公开(公告)日：2017-03-02

申请号：US15247567

申请日：2016-08-25

申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO

发明人： Mitsuo YAMASHITA

IPC分类号： G10C3/02 ,  G10C1/04

CPC分类号： G10C3/02 ,  G10C1/04

摘要： A topboard support device for a grand piano, in which a topboard prop can be accommodated without placing the same on ribs of a frame. The topboard support device supports a topboard capable of opening and closing the top of a piano body, in an open state, and includes the topboard prop for supporting the opened topboard from below by a tip end portion thereof, and a prop support member for supporting the topboard prop via a base end portion thereof in a manner pivotally movable about vertical and horizontal axes. The topboard prop is pivotally moved by the prop support member between a position for being accommodated in a space between the ribs of the frame and an outer rim, in a substantially horizontal posture, and a position for supporting the topboard, in a posture tilted in a manner rising toward a tip end.

摘要翻译： 一种用于大钢琴的顶板支撑装置，其中可以容纳顶板支柱而不将其放置在框架的肋上。 顶板支撑装置支撑能够打开和关闭钢琴主体顶部的顶板，处于打开状态，并且包括用于通过其顶端部分从下方支撑打开的顶板的顶板支架，以及支撑支撑构件，用于支撑 顶板支架经由其基端部分以可围绕垂直和水平轴线枢转运动的方式。 顶板支架由支撑支撑构件枢转地运动，该位置用于容纳在框架的肋之间的空间中的位置和基本上水平的姿势的外缘之间，以及用于支撑顶板的位置，倾斜的姿势 一种朝向尖端的方式。