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1. 发明授权

US5325757A Fret retractable neck for stringed musical instruments 失效
标题翻译：用于弦乐器的可伸缩颈部
公开(公告)号：US5325757A
公开(公告)日：1994-07-05
申请号：US943527
申请日：1992-09-11
申请人： Serban Ghenea
发明人： Serban Ghenea
IPC分类号： G10D3/06
CPC分类号： G10D3/06
摘要： A stringed musical instrument (12) that can be played either in a fretted or a fretless mode includes an interconnected fret assembly (38) including frets (24) and a longitudinal fret interconnecting member (40) that is attached to, and movable with, the frets. A movable linear cam structure (46) has two cams at each fret, one positioned on each side of the fret interconnecting member, and includes rack teeth (52) which mesh with a pinion (62) driven by a lever (66) for causing linear movement of the linear cam structure. The interconnecting member is an elongated slat (40) which is positioned in a slot (50) between the cams. The linear-movable cam includes an elongated guide protrusion (56) and an interior cavity (30) of the fingerboard, in which the cam rides, defines an elongated guide slot (58) for receiving the guide protrusion and thereby limiting lateral movement of the linear cam. The linear cam structure and the interior cavity have tapered lateral sides.
摘要翻译：可以以微动或无颤动模式播放的弦乐器（12）包括互连的音柱组件（38），包括音色（24）和纵向音杆互连构件（40）音乐可移动线性凸轮结构（46）在每个托架上具有两个凸轮，一个位于所述托架互连构件的每一侧上，并且包括与由杠杆（66）驱动的小齿轮（62）啮合的齿条齿（52），用于引起线性凸轮结构的直线运动。互连构件是位于凸轮之间的狭槽（50）中的细长板条（40）。线性可移动凸轮包括细长的引导突起（56）和指板的内部空腔（30），凸轮骑在该内部空腔中限定用于接收引导突起的细长引导槽（58），从而限制线性凸轮线性凸轮结构和内腔具有锥形侧面。

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