KEYBOARD MECHANICAL DEVICE FOR OBTAINING OF SOUNDS FROM STRING MUSICAL INSTRUMENTS Russian patent published in 2009 - IPC G10D3/08 

FIELD: physics; acoustics.

SUBSTANCE: invention concerns the keyboard device for obtaining of sounds from string musical instruments, preferentially plucked ones. The keyboard mechanical device includes keys interacting among themselves, the case for the keyboard, a hammer, the drummer and a damper unit for interaction with a string. The device contains the mechanism executed in the form of the case with fixing plates, a lever of damper power control and the keys are located on its outer side. There are spring plates on the extremity of keys. The rotary cramp is disposed along an exterior surface of one or more keys, and on an inside of each key the holdfast and an inertial bob is mounted. The support and a hook for keys is located under a key aside, opposite from a spring plate, on the case. From each key in the case there is an incurvated axis on with the hammer fastened on it, joined to the drummer executed preferentially from copper. The damper lever rests against the upper surface of the hammer at the ungeared damper. From the opposite leg of the drummer hammer, a retainer axis is located against which the lever of pressure and the spring plate are rest, and also an anti-recoil clamping plate which together with a blanket core of pressure, aggregating two damper pillows for interaction with a string, anchored on bearing axes by means of fastenings on which spring plates are mounted, making a damper.

EFFECT: creation of the effective device for extraction of sounds from string musical instruments, preferentially plucked ones.

10 dwg