FITTING OF SOLENOID UNDER STRING INSTRUMENT STRING Russian patent published in 2015 - IPC G10D3/00 

FIELD: physics.

SUBSTANCE: invention relates to string instruments. String instrument has common board under string instrument finger-board with through holes for every said solenoid. The latter comprises winding to accommodate the plunger displacing axially therein and converging to its outlet pin for limiting of working displacement of said plunger by banking pin located and winding end facing said string. Note here that said outlet pin has end with bulge provided with resilient washers that face said string and their back sides. Note here that claimed process comprises the steps that follow. The solenoid is secured at the plate. The latter is located above common board so that bulge at outlet pin end passes via through hole. Said plate is locked above common board with the help of adjusting screws provided with resilient shims between the plate and common board to string pressing by said bulge at working current feed to solenoid winding. Said plate is displaced by adjusting screws to the position whereat at feed of working current to solenoid winding the string pressing occurs without kicks of plunger contraction against lock ring.

EFFECT: string is pressed against the finger-board without kicks.

2 cl, 2 dwg