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115 条记录 (耗时 0.019 秒)

    Support assembly and keyboard apparatus
    1.
    发明授权
    Support assembly and keyboard apparatus 有权

    公开(公告)号：US10403243B2

    公开(公告)日：2019-09-03

    申请号：US15074221

    申请日：2016-03-18

    申请人： Yamaha Corporation

    发明人： Akito Ohba

    IPC分类号： G10C3/18 ,  G10C3/24 ,  G10C3/22

    摘要： A support assembly according to one embodiment of the present invention includes a support rotatably disposed with respect to a frame, a repetition lever rotatably connected to the support, an spring element supported by a support portion fixed to the support, the spring element which provides a rotational force to the repetition lever, and a contact portion between the repetition lever and the spring element, wherein a rotating portion of the repetition lever is provided with respect to the support portion on a side opposite to the contact portion between the repetition lever and the spring element.

    Support assembly and keyboard apparatus
    2.
    发明授权
    Support assembly and keyboard apparatus 有权

    公开(公告)号：US09672797B2

    公开(公告)日：2017-06-06

    申请号：US15217005

    申请日：2016-07-22

    申请人： Yamaha Corporation

    发明人： Akito Ohba ,  Shunsuke Ichiki

    IPC分类号： G10H1/32 ,  G10H3/00 ,  G10C3/16 ,  G10C3/22

    CPC分类号： G10C3/168 ,  G10C3/22

    摘要： A support assembly includes a support rotatably disposed with respect to a frame; a jack support portion connected to the support; a jack having a recessed portion in a lower portion of the jack, the jack having the jack support portion inside the recessed portion and being rotatably disposed to the support; and an acting portion fixed to the jack and receiving a downward action. The recessed portion has an open end with a width larger than a width of the jack support portion. The recessed portion may have an open end with a width larger than a width of the jack support portion.

    Keyboard musical instrument and action unit incorporated therein
    3.
    发明授权
    Keyboard musical instrument and action unit incorporated therein 有权
    键盘乐器和动作单元并入其中

    公开(公告)号：US07807907B2

    公开(公告)日：2010-10-05

    申请号：US12275917

    申请日：2008-11-21

    申请人： Satoshi Inoue

    发明人： Satoshi Inoue

    IPC分类号： G10C3/22

    CPC分类号： G10C3/22

    摘要： A grand piano has action units for driving hammers to rotate toward strings, and each action unit is equipped with a repetition mechanism; the repetition mechanism has an elastic guide plate instead of a repetition lever and a repetition spring; and the elastic guide plate per se is deformed after contact with a drop screw, and returns to the initial position for permitting a pianist to play a music tune through repetition of key when the pianist releases the depressed key, whereby the action unit becomes simpler in structure than the conventional action unit.

    摘要翻译： 大钢琴具有用于驱动锤子朝向弦线旋转的动作单元，并且每个动作单元配备有重复机构; 重复机构具有弹性导板，代替重复杆和重复弹簧; 并且弹性导板本身在与下落螺钉接触后变形，并且当钢琴家释放按下的琴键时，返回到初始位置，以允许钢琴家通过重复键弹奏乐曲，由此动作单元变得更简单 结构比常规动作单元。

    Grand piano action
    5.
    发明授权
    Grand piano action 失效
    大钢琴动作

    公开(公告)号：US4685371A

    公开(公告)日：1987-08-11

    申请号：US744134

    申请日：1985-06-12

    申请人： Gary M. Levinson

    发明人： Gary M. Levinson

    IPC分类号： G10C3/22 ,  G10C3/18

    CPC分类号： G10C3/22

    摘要： Within each action of a grand piano there are certain wood surfaces which rub against other surfaces. These interfaces create friction, which adversely affects the playability of the piano. In order to reduce and overcome this friction, strips of fluorocarbon resin, having an extremely low coefficient of friction, are adhered to those wooden surfaces within the action which come into contact with other surfaces.

    摘要翻译： 在一架大钢琴的每个动作中，都有某些木材表面与其他表面摩擦。 这些接口产生摩擦，这对钢琴的可玩性产生不利影响。 为了减少和克服这种摩擦，具有非常低的摩擦系数的氟碳树脂条被粘附到与其它表面接触的作用中的那些木制表面上。