KEYBOARD INSTRUMENT Russian patent published in 2018 - IPC G10B3/00 

FIELD: musical instruments.

SUBSTANCE: invention relates to a keyboard instrument comprising a main tool body having a first mounting portion on one of its side surfaces, including a first mounting bulge portion, the first installation concave portion, which is concave more than the first installation convex portion, and the first guide portion provided between them, and a side panel that supports one side surface of the main body of the tool and has a second mounting portion including a second mounting bulge portion corresponding to the first mounting concave portion, the second installation concave section corresponding to the first installation convex section, and the second guide section, provided between them so as to correspond to the first guide section, the vertical length of the rear side of the second installation concave section in the side panel is greater than the vertical length of the front side of the second installation concave section in the side panel.

EFFECT: invention solves the problem of increasing the technological assembly of the device.

7 cl, 22 dwg