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1. 发明申请

US20220084484A1 KEYBOARD DEVICE FOR KEYBOARD INSTRUMENT 有权
公开(公告)号：US20220084484A1
公开(公告)日：2022-03-17
申请号：US17406791
申请日：2021-08-19
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Akihiro SUZUKI
IPC分类号： G10C3/18 , G10H1/34 , G10C3/12
摘要： A keyboard device for a keyboard instrument, capable of largely reducing noise generated when a hammer contacts a lower limit stopper during key release immediately after key depression. The keyboard device includes a keyboard chassis disposed on a keybed, keys pivotally supported on the chassis, hammers pivotally supported on the chassis below the keys and each vertically pivotally moved, an intermediate rail mounted on the chassis below a rotational shaft of the hammers and its vicinity in a state floating from the keybed, and a lower limit stopper mounted on the intermediate rail, such that each hammer is placed thereon via its placement-contact portion when in a key-released state and contacts the same from above via the placement-contact portion when pivotally moving downward in accordance with key release after being moved upward by key depression, whereby further pivotal motion of the hammer is stopped.

2. 发明授权

US11250820B2 Stopper rail for silent piano 有权
公开(公告)号：US11250820B2
公开(公告)日：2022-02-15
申请号：US17215708
申请日：2021-03-29
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Kousuke Tanaka
IPC分类号： G10D3/18 , G10C3/166 , G10C3/18
摘要： A stopper rail of a silent piano, which can make collision noise generated when a hammer shank collides against the stopper rail, blurred in the sense of pitch thereof and difficult to be recognized by the human ear, in a silent performance mode. In this mode, the stopper rail is contacted by the hammer shank of a hammer being pivotally moved to stop pivotal movement of the hammer. The stopper rail includes a rail body having a predetermined flexural rigidity allowing vibration, a first cushion provided on one surface of the hammer shank, for being contacted by the hammer shank being pivotally moved, and a vibration suppressing portion provided on an opposite surface of: the rail body to the first surface so as to apply a load to the rail body to suppress vibration of the rail body when the hammer shank contacts the rail body.

3. 发明授权

US10762884B2 Keyboard device for electronic keyboard instrument and keyframe front for keyboard instrument 有权
公开(公告)号：US10762884B2
公开(公告)日：2020-09-01
申请号：US16552220
申请日：2019-08-27
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Akihiro Suzuki
IPC分类号： G10H1/34 , G10C3/12
摘要： A keyboard device for an electronic keyboard instrument, capable of suppressing bouncing of a hammer returning to its original position. A key extends in a front-rear direction swingably about a balance rail pin. The hammer is formed vertically pivotally movable between initial and pivotally-moved positions about a hammer fulcrum provided near a rear end of the key and is placed on the key via a key contact portion in contact with a rear end of upper surface of the key from above, for pivotal motion by swinging of the key. A hammer cushion is provided on upper surface of the key at a predetermined location forward of the key contact portion to suppress bouncing of the hammer by contact with a cushion contact portion of the hammer returning from the pivotally-moved position to the initial position by releasing the key depression.

4. 发明授权

US10657930B2 Topboard reflection preventer for grand piano 有权
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.

5. 发明申请

US20160202899A1 HANDWRITTEN MUSIC SIGN RECOGNITION DEVICE AND PROGRAM 审中-公开
标题翻译：手写音乐标志识别装置和程序
公开(公告)号：US20160202899A1
公开(公告)日：2016-07-14
申请号：US14911963
申请日：2015-01-15
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Akihiro FUJITA
IPC分类号： G06F3/0488 , G10G1/00 , G06K9/00 , G06F17/24 , G06T11/20
摘要： A handwritten music sign recognition device (10) has: a touch information obtaining part (21) which obtains, as position information, a position of an input means on a screen every time the input means moves, from when the input means touches the screen until when the input means is moved away therefrom; a vector information creation part (22) which creates attributes of a vector indicating a trace of movement of the input means as vector information based on the position information; and a stroke characteristic amount derivation part (23) which derives a characteristic amount of a stroke based on the vector information included in the stroke information.
摘要翻译：手写音乐识别识别装置（10）具有：触摸信息获取部（21），当输入装置触摸屏幕时，获取作为位置信息的输入装置在每次输入装置移动时在屏幕上的位置直到输入装置离开它为止; 向量信息生成部（22），其根据所述位置信息，生成表示所述输入单元的移动轨迹的向量的属性作为向量信息; 以及基于包括在笔画信息中的矢量信息导出笔划的特征量的笔画特征量导出部（23）。

6. 发明授权

US09330648B2 Electronic keyboard musical instrument 有权
标题翻译：电子键盘乐器
公开(公告)号：US09330648B2
公开(公告)日：2016-05-03
申请号：US14609678
申请日：2015-01-30
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Kaoru Matsunaga
IPC分类号： G10H1/08 , G10H7/00 , G10H7/04
CPC分类号： G10H7/00 , G10H1/08 , G10H7/04 , G10H2210/271
摘要： An electronic keyboard musical instrument includes a storage device, a musical tone generation unit, a resonating sound generation unit, and an adding unit. The musical tone generation unit reads out corresponding musical tone waveform data from the storage device according to key depression information to generate a musical tone waveform signal and a first register resonating sound waveform signal. The resonating sound generation unit receives the musical tone waveform signal to cause the resonating sound generation circuit to generate a second register resonating sound waveform signal according to damper pedal operator manipulation information and the key depression information, and outputs the second register resonating sound waveform signal. The adding unit is configured to add the musical tone waveform signal and the resonating sound waveform signal from the musical tone generation unit and the resonating sound generation unit respectively, and outputting a resulting signal.
摘要翻译：电子键盘乐器包括存储装置，乐音产生单元，共鸣声产生单元和添加单元。音乐生成单元根据键按压信息从存储装置读出相应的乐音波形数据，以生成乐音波形信号和第一寄存器谐振声波形信号。谐振声产生单元接收乐音波形信号，以使谐振声产生电路根据制音踏板操作者操作信息和按键按压信息产生第二寄存器谐振声波形信号，并输出第二寄存器谐振声波形信号。添加单元被配置为分别从乐音产生单元和谐振声音产生单元中添加乐音波形信号和谐振声波形信号，并输出结果信号。

7. 发明授权

US08985830B2 Switch, keyboard instrument provided with the same, and light emission control circut 有权
标题翻译：开关，提供的键盘仪器和发光控制回路
公开(公告)号：US08985830B2
公开(公告)日：2015-03-24
申请号：US13836814
申请日：2013-03-15
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Kenji Kamada
IPC分类号： F21V8/00 , H05B37/02
CPC分类号： G02B6/0018 , G02B6/002 , H03K17/955 , H03K17/962 , H03K2217/96079 , H05B37/0227
摘要： A switch according to the present invention includes: a substrate; a touch sensor; a light guide plate; a light emitting unit; and a control unit. The light guide plate has a surrounding side surface chamfered so that a light entering into the surrounding side surface of the light guide plate diffusely reflects inside the light guide plate. The light emitting unit is arranged at a position facing the surrounding side surface of the light guide plate. The light emitting unit is configured to emit the light to the surrounding side surface of the light guide plate.
摘要翻译：根据本发明的开关包括：基板; 触摸传感器; 导光板; 发光单元; 和控制单元。导光板具有倒角的周边侧面，使得进入导光板的周围侧面的光在导光板内漫反射。发光单元布置在与导光板的周围侧表面相对的位置。发光单元被配置为将光发射到导光板的周围侧表面。

8. 发明授权

US08766075B2 Keyboard device for electronic keyboard instrument 有权
标题翻译：键盘设备电子键盘乐器
公开(公告)号：US08766075B2
公开(公告)日：2014-07-01
申请号：US13712802
申请日：2012-12-12
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Hideyuki Ishida
IPC分类号： G10C3/12 , G10H1/34
CPC分类号： G10H1/34 , G10C3/12 , G10H1/346
摘要： A keyboard device for an electronic keyboard instrument, including several keys arranged side by side in a left-right direction, a hammer support disposed rearward of the keys, a plurality of hammers pivotally supported by the hammer support to be pivotally moved in accordance with key depression, and a key switch having a plurality of switch bodies provided in association with the respective hammers and a switch board mounted to the hammer support. The hammer support has a hammer supporting part for supporting the hammers and a switch mounting part to which the key switch is mounted, and is formed by an injection molded article of a predetermined kind of synthetic resin.
摘要翻译：一种用于电子键盘乐器的键盘装置，包括左右方向并列布置的多个琴键，设置在琴键后方的琴槌支架，由琴槌支架枢轴支撑的多个琴弦，可根据琴键枢转运动凹陷和具有与各个锤相关联地设置的多个开关体的键开关和安装在锤支架上的开关板。锤支架具有用于支撑锤的锤支撑部分和安装有钥匙开关的开关安装部分，并且由预定种类的合成树脂的注塑制品形成。

9. 发明授权

US08742241B2 Electronic keyboard instrument 有权
标题翻译：电子键盘乐器
公开(公告)号：US08742241B2
公开(公告)日：2014-06-03
申请号：US13869714
申请日：2013-04-24
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Kohtaro Irimura
IPC分类号： G10C3/12 , G10C3/02
CPC分类号： G10C3/02 , G10C1/02 , G10C3/12 , G10H1/32
摘要： An electronic keyboard instrument capable of suppressing warpage of a keybed having a keyboard placed thereon and improving the appearance of the instrument by shared use of a backboard covering an instrument body and a speaker box. A piano body of an electronic piano has a keybed. A bottom board is disposed below the keybed in a manner spaced therefrom and extends further rearward than a rear end thereof. A front board is erected on a front end of the bottom board and connected to the keybed. The speaker box accommodates a speaker. A screen board is erected rearward of the front board in the speaker box on the bottom board, and connected to the keybed. A backboard is connected to the rear end of the bottom board in a manner covering the rear sides of the piano body and the speaker box.
摘要翻译：一种电子键盘乐器，其能够抑制具有放置在其上的键盘的键盘的翘曲，并且通过共享使用覆盖乐器主体和扬声器盒的背板来改善乐器的外观。电子钢琴的钢琴身上有一个钥匙扣。底板以与其隔开的方式设置在键板下方并且比其后端更向后延伸。前板竖立在底板的前端并连接到键盘上。扬声器盒可容纳扬声器。屏幕板竖立在底板后面的扬声器箱的前面板后面，并连接到钥匙扣上。背板以覆盖钢琴主体和扬声器箱的后侧的方式连接到底板的后端。

10. 发明授权

US08735700B2 Bearing member 有权
标题翻译：轴承会员
公开(公告)号：US08735700B2
公开(公告)日：2014-05-27
申请号：US13628249
申请日：2012-09-27
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Kiyoshi Abe
IPC分类号： G10C3/18
CPC分类号： G10C3/18 , G10C3/16
摘要： A bearing member is to be used for an action mechanism in a keyboard instrument, the action mechanism provided with an action member that pivots in accordance with a key-depressing operation, and the bearing member includes: an inner layer having a through hole through which a shaft provided in the action member is inserted; and an outer layer formed in an outer side of the inner layer. The inner layer is formed of a first material having a higher stability against humidity than a stability against humidity of the outer layer. The outer layer is formed of a second material having a resilience greater than a resilience of the inner layer.
摘要翻译：轴承构件用于键盘乐器中的动作机构，动作机构设置有按照按键操作而转动的动作构件，该支承构件包括：具有通孔的内层，通孔设置在动作构件中的轴被插入; 以及形成在内层的外侧的外层。内层由比外层的湿度稳定性高的对湿度的稳定性高的第一材料形成。外层由具有大于内层弹性的弹性的第二材料形成。

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