MUSICAL INSTRUMENT JEW'S HARP WITH THE MECHANISM OF CHANGING TONALITY Russian patent published in 2018 - IPC G10D17/00 

FIELD: musical instruments.

SUBSTANCE: musical instrument Jew's harp is provided with a mechanism with a tonality change mechanism that comprises a body of elongated annular base 1, which passes into cheeks 2, between which tongue 4 is disposed. Attachment of tongue 4 to the body is made in the form of groove 5 in the upper part of base 1 fixed by removable strips 6 on both sides of the body by means of detachable connection 7. Assembly further comprises a tonality control mechanism configured to move along the longitudinal axis of the tool over tab plate 4 and inner surface 9 formed in base 1 of the housing. Body of the movable mechanism has outer lateral longitudinal guide grooves 13 and internal through passage 20 for passage of the tongue, housing also includes inner cylindrical clamp-latch 14 of tongue 4 comprising, on the outside, adjustment lever 15 with handle-button 16 and a lever return mechanism with elastic member 17, stop limiter 18, and on the inside, shaped channel 12 for passing the plate of tongue 4, which is aligned with inner channel 20 in the housing of the mobile mechanism. Within shaped channel 12, a surface with a transverse angle formed by two intersecting planes 19 is formed, which, when the clamp 14 is rotated, abuts one side of the plate of tongue 4, on back side 11 of the mechanism, restoring locker device 21 is provided, including an elastic member on a longitudinal guide installed by the other end on the back side of cover 6 of base 1 of the body.

EFFECT: musical instrument Jew's harp with a mechanism for changing the tonality.

1 cl, 5 dwg