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Drum instrument, hydraulic system for such a drum instrument, and method for manufacturing such a drum instrument

机译:鼓乐器,用于这种鼓乐器的液压系统以及用于制造这种鼓乐器的方法

摘要

Drum instrument comprising a frame (1) with a first rigid ring element which rests against the drumhead (20), and a second rigid ring element (23) which is situated around the first ring element and is in engagement with the drumhead (20). For regulation of the tension of the drumhead (20), one ring element (23) is movable relative to the other by means of a hydraulic system (10). This system (10) comprises a hydraulic actuator which acts upon the movable ring element (23) and which has a working chamber (11a) forming part of a volume for hydraulic fluid formed by the hydraulic system (10), so that the tension of the drumhead (20) can be regulated depending on the pressure in the working chamber (11a). The system (10) comprises setting means (12) for setting a basic pressure in the working chamber, and foot-operated means (13) for varying by foot the pressure in the working chamber (11a) of the hydraulic actuator, in such a way that the setting of the basic pressure achieved by means of the setting means (12) is retained. The hydraulic actuator (10) preferably acts upon the second ring element (23).
机译:鼓乐器,包括具有第一刚性环元件的框架(1),该第一刚性环元件抵靠鼓面(20),第二刚性环元件(23)位于第一环形元件周围并与鼓面(20)接合。为了调节鼓面(20)的张力,一个环形元件(23)可通过液压系统(10)相对于另一个环形元件移动。该系统(10)包括作用在可移动环形元件(23)上的液压致动器,该致动器具有工作室(11a),工作室(11a)形成用于由液压系统(10)形成的液压流体的容积的一部分。可以根据工作室(11a)中的压力调节鼓面(20)。该系统(10)包括用于设定工作室中的基本压力的设定装置(12),以及用于通过脚来改变液压致动器的工作室(11a)中的压力的​​脚操作装置(13)。这样可以保持通过调节装置(12)达到的基本压力的调节。液压致动器(10)优选作用在第二环形元件(23)上。

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