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1. 发明公开

US20240105149A1 DRUM WITH A TUNING MECHANISM 审中-公开
公开(公告)号：US20240105149A1
公开(公告)日：2024-03-28
申请号：US18468119
申请日：2023-09-15
申请人： Elwyn J. Hancox
发明人： Elwyn J. Hancox
IPC分类号： G10D13/16 , G10D13/02 , G10D13/10 , G10D13/20
CPC分类号： G10D13/16 , G10D13/02 , G10D13/20 , G10D13/25
摘要： Two or more deadening elements are in contact with the underside of the drum head and are provided with a mechanism which moves the deadener or deadeners across the drum head thus varying the effective resonating area of the head so that the drum can be tuned while playing. As an example, the drum tuning can be changed from a bass drum to a concert tom. The preferred embodiment includes a pair of opposed, curved deadeners which are moved towards and away from one another in concentric relationship with the drum head. The actuator system is arranged to move the first deadening element at a rate of movement different from the second and thus defining three effective resonating areas of different sizes between the first and the periphery, between the first and the second and between the second and the periphery.

2. 发明授权

US4228721A Drum tuning mechanism 失效
标题翻译：鼓调谐机构
公开(公告)号：US4228721A
公开(公告)日：1980-10-21
申请号：US3354
申请日：1979-01-15
申请人： Elwyn J. Hancox
发明人： Elwyn J. Hancox
IPC分类号： G10D13/02
CPC分类号： G10D13/023
摘要： One or more deadening elements are in contact with the underside of the drum head and are connected to a foot operated mechanism which moves the deadener or deadeners across the drum head thus varying the effective resonating area of the head so that the drum can be tuned while playing. As an example, the drum tuning can be changed from a bass drum to a concert tom. The preferred embodiment includes a pair of opposed, curved deadeners which are moved towards and away from one another in concentric relationship with the drum head.
摘要翻译：一个或多个消音元件与鼓头的下侧接触并且连接到脚踏操作机构，该脚踏操作机构使消音器或消音器移动穿过鼓头，从而改变头部的有效谐振区域，使得可以同时调谐鼓玩。例如，鼓调谐可以从低音鼓改变成音乐会汤姆。优选的实施例包括一对相对的弯曲消音器，它们与鼓头同心地相互移动并彼此远离。

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