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1. 发明申请

US20150114202A1 HAMMER DEVICE FOR KEYBOARD INSTRUMENT 有权
标题翻译：键盘仪表的锤击装置
公开(公告)号：US20150114202A1
公开(公告)日：2015-04-30
申请号：US14518551
申请日：2014-10-20
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Akihiro Suzuki
IPC分类号： G10C3/18
CPC分类号： G10C3/18 , G10C3/12
摘要： A hammer device for a keyboard instrument, enabling improvement of efficiency and yield, in manufacturing weights to be attached to each hammer body while suppressing an increase in manufacturing cost. Each hammer includes a hammer body having a weight mounting portion, a common weight attached to one of left and right side surfaces of the weight mounting portion, and an adjustment weight having a length set according to a touch weight required by the associated key and attached to the other of the left and right side surfaces of the weight mounting portion. A chassis has a plurality of partition parts, and on the left and right surfaces of the hammer body, there are formed left and right opposed protrusions, respectively, each of which protrudes outward of the weight and is opposed to a partition part associated therewith via a predetermined clearance.
摘要翻译：一种用于键盘乐器的锤装置，能够提高效率和产量，同时抑制制造成本的增加，制造附着于每个锤体的重量。每个锤子包括锤体，其具有重量安装部分，附接到重物安装部分的左右侧表面中的一个的共同重量，以及根据相关键所需的触摸重量设定的长度的调节锤，到重量安装部分的左右侧表面中的另一个。底盘具有多个分隔部，并且在锤体的左右表面上分别形成有左右对置的突起，每个突出部突出于配重的外侧，并与与其相关联的分隔部相对通过预定间隙。

2. 发明申请

US20150068384A1 HAMMER DEVICE AND KEYBOARD DEVICE FOR ELECTRONIC KEYBOARD INSTRUMENT 有权
标题翻译：用于电子键盘仪表的锤装置和键盘装置
公开(公告)号：US20150068384A1
公开(公告)日：2015-03-12
申请号：US14527491
申请日：2014-10-29
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Akihiro Suzuki , Hideyuki Ishida
IPC分类号： G10B3/12 , G10H1/34
CPC分类号： G10C3/18 , G10B3/12 , G10H1/34 , G10H1/346
摘要： A hammer device of an electronic piano with keys which swing in accordance with key depression, includes a hammer support that is made of a synthetic resin and has a fulcrum shaft, and a hammer having a shaft hole part for being fitted on the fulcrum shaft and configured to pivotally move about the fulcrum shaft in a manner interlocked with the swinging key. The fulcrum shaft has an outer peripheral surface formed by a pair of arcuately-curved surface portions opposite to each other and a pair of planar surface portions each extending between the pair of arcuately-curved surface portions and parallel to each other.
摘要翻译：具有按键凹部摆动的键的电子钢琴的锤装置包括由合成树脂制成的具有支点轴的锤支撑体，以及具有安装在支轴上的轴孔部的锤，构造成以与所述摆动键联锁的方式绕所述支点轴枢转运动。支点轴具有由相互相对的一对弧形表面部分形成的外周面和一对平行的表面部分，每个平面表面部分在所述一对弧形表面部分之间延伸并彼此平行。

3. 发明授权

US09940916B2 Key guide structure for keyboard instrument 有权
公开(公告)号：US09940916B2
公开(公告)日：2018-04-10
申请号：US15459359
申请日：2017-03-15
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Akihiro Suzuki
IPC分类号： G10H1/32 , G10H3/00 , G10H1/34
CPC分类号： G10H1/34 , G10H1/346 , G10H2220/265
摘要： A key guide structure for a keyboard instrument, which is capable of stably and appropriately guiding a key pivotally moved by key depression without generating noise. The key guide structure has guide holders each erected below a guide recess of each key, and guide members mounted to tops of the guide holders, respectively, each for sliding contact with lateral inner side surfaces of the recess. Each guide member includes a body disposed between the lateral inner side surfaces of the recess with a predetermined clearance, two lateral flexible portions laterally flexible and extending from lateral ends of a front or rear surface of the body in a manner protruding in a front-rear direction, and two lateral contact portions which are provided at front ends of the flexible portions in a manner protruding sideward and are in contact with the lateral inner side surfaces of the recess.

4. 发明申请

US20150082969A1 KEYBOARD DEVICE FOR KEYBOARD INSTRUMENT 有权
标题翻译：键盘仪表键盘装置
公开(公告)号：US20150082969A1
公开(公告)日：2015-03-26
申请号：US14480442
申请日：2014-09-08
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Akihiro Suzuki
IPC分类号： G10C3/12
CPC分类号： G10C3/12
摘要： A keyboard device for a keyboard instrument capable of having each key easily mounted on a keyboard chassis while ensuring stable pivotal motion of the key, without damaging the key. A keyboard chassis holds keys in arrangement in a left-right direction. A key support part has a lower support portion for supporting a pivot shaft of a key from below, and left and right upper support portions erected with a predetermined spacing in the direction, for supporting a key rear end portion located upward of the shaft from above. When mounting the key to the key support part, the upper support portions have its spacing expanded by the key rear end, thereby being elastically deformed to pass the key rear end, and thereafter, elastically return to their original state to hold the key rear end in a retained state by cooperating with the lower support portion.
摘要翻译：一种用于键盘乐器的键盘装置，其能够使每个键容易地安装在键盘机箱上，同时确保键的稳定的枢转运动，而不损坏琴键。键盘机箱沿左右方向安装键。键支撑部具有用于从下方支撑钥匙的枢轴的下支撑部分，以及沿着该方向以预定间隔竖立的左右上支撑部分，用于从上方支撑位于轴上方的钥匙后端部分。当将钥匙安装在钥匙支撑部上时，上支撑部分的间隔由钥匙后端扩大，由此弹性变形以通过钥匙后端，此后弹性地恢复到原来的状态，以保持钥匙后端通过与下支撑部配合而处于保持状态。

5. 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.

6. 发明申请

US20130081532A1 HAMMER DEVICE FOR ELECTRONIC KEYBOARD INSTRUMENT 有权
标题翻译：电子键盘仪表用HAMMER设备
公开(公告)号：US20130081532A1
公开(公告)日：2013-04-04
申请号：US13631276
申请日：2012-09-28
申请人： KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
发明人： Akihiro Suzuki , Hideyuki Ishida
IPC分类号： G10H1/34 , G10C3/18
CPC分类号： G10H1/34 , G10H1/346
摘要： A hammer device for an electronic keyboard instrument, enabling prevention of grease or the like from adhering to an actuator portion during mounting of the hammer, to thereby enable speedy hammer mounting work and improve the work efficiency. The hammer device includes a hammer support and hammers arranged side by side in a left-right direction and each pivotally supported by the hammer support to pivotally move in accordance with depression of an associated key. When mounting the hammer to the hammer support, before a shaft hole is engaged with a fulcrum shaft portion, left and right protrusions of the hammer are brought into abutment with respective left and right stopper walls provided close to the respective left and right ends of the fulcrum shaft portion, to thereby prevent the actuator portion from being brought into contact with the fulcrum shaft portion.
摘要翻译：一种用于电子键盘乐器的锤装置，能够防止在安装锤子期间油脂等粘附到致动器部分，从而实现快速的锤安装工作并提高工作效率。锤装置包括锤支撑件和在左右方向上并排设置的锤，并且每个由锤支撑件枢转地支撑以根据相关键的按压而枢转地移动。当将锤安装到锤支架上时，在轴孔与支点轴部分接合之前，锤的左右突起与相邻的左右止挡壁相邻，左右止挡壁靠近相应的左右端部支点轴部分，从而防止致动器部分与支轴部分接触。

7. 发明授权

US11508341B2 Keyboard device for keyboard instrument 有权
公开(公告)号：US11508341B2
公开(公告)日：2022-11-22
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 , G10C3/12 , G10H1/34
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.

8. 发明授权

US09607587B2 Hammer device and keyboard device for electronic keyboard instrument 有权
公开(公告)号：US09607587B2
公开(公告)日：2017-03-28
申请号：US14527491
申请日：2014-10-29
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Akihiro Suzuki , Hideyuki Ishida
IPC分类号： G10C3/18 , G10H1/34 , G10B3/12
CPC分类号： G10C3/18 , G10B3/12 , G10H1/34 , G10H1/346
摘要： A hammer device of an electronic piano with keys which swing in accordance with key depression, includes a hammer support that is made of a synthetic resin and has a fulcrum shaft, and a hammer having a shaft hole part for being fitted on the fulcrum shaft and configured to pivotally move about the fulcrum shaft in a manner interlocked with the swinging key. The fulcrum shaft has an outer peripheral surface formed by a pair of arcuately-curved surface portions opposite to each other and a pair of planar surface portions each extending between the pair of arcuately-curved surface portions and parallel to each other.

9. 发明授权

US09006549B2 Hammer device and keyboard device for electronic keyboard instrument 有权
标题翻译：用于电子键盘乐器的锤装置和键盘装置
公开(公告)号：US09006549B2
公开(公告)日：2015-04-14
申请号：US13689404
申请日：2012-11-29
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Akihiro Suzuki , Hideyuki Ishida
IPC分类号： G10C3/12 , G10C3/18 , G10H1/34
CPC分类号： G10C3/18 , G10B3/12 , G10H1/34 , G10H1/346
摘要： A hammer device of an electronic piano with keys which swing in accordance with key depression, includes a hammer support that is made of a synthetic resin and has a fulcrum shaft, and a hammer having a shaft hole part for being fitted on the fulcrum shaft and configured to pivotally move about the fulcrum shaft in a manner interlocked with the swinging key. The fulcrum shaft has an outer peripheral surface formed by a pair of arcuately-curved surface portions opposite to each other and a pair of planar surface portions each extending between the pair of arcuately-curved surface portions and parallel to each other.
摘要翻译：具有按键凹部摆动的键的电子钢琴的锤装置包括由合成树脂制成的具有支点轴的锤支撑体，以及具有安装在支轴上的轴孔部的锤，构造成以与所述摆动键联锁的方式绕所述支点轴枢转运动。支点轴具有由相互相对的一对弧形表面部分形成的外周面和一对平行的表面部分，每个平面表面部分在所述一对弧形表面部分之间延伸并彼此平行。

10. 发明授权

US08969698B1 Keyboard chassis and key guide structure for keyboard instrument 有权
标题翻译：键盘乐器键盘机箱及键盘导轨结构
公开(公告)号：US08969698B1
公开(公告)日：2015-03-03
申请号：US14514983
申请日：2014-10-15
申请人： Kabushiki Kaisha Kawai Gakki Seisakusho
发明人： Akihiro Suzuki
IPC分类号： G10C3/12
CPC分类号： G10C3/12
摘要： A keyboard chassis capable of preventing deformation of the keyboard chassis even when the keyboard instrument is stored in an upright position, and a key guide structure capable of stably guiding a key without generating noise. The keyboard chassis is provided with a plurality of connection parts connecting between a rear support part and a front support part. Each connection part includes a plate-shaped vertical rib continuous with the rear support part and the front support part, and a plate-shaped reinforcement rib disposed on an upper end of the vertical rib, with a width increased in the left-right direction. The key guide structure includes key guide holders each having a mounting portion, and key guide bodies each mounted in the mounting portions in a state inserted from above, for being brought into sliding contact with inner side surfaces of a guide recess of each key.
摘要翻译：一种能够防止键盘乐器直立存储时的键盘机架变形的键盘机架，以及能够稳定地引导键而不产生噪音的键导向结构。键盘底盘设置有连接在后支撑部和前支撑部之间的多个连接部。每个连接部分包括与后支撑部分和前支撑部分连续的板状垂直肋，以及布置在垂直肋的上端上的板形加强肋，其宽度在左右方向上增加。按键导向结构包括：具有安装部的键导向架，以及从上方插入的状态下安装在安装部的键导向体，与各键的导向槽的内侧面滑动接触。

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