LACE TIGHTENER DEVICE AND METHOD OF ITS APPLICATION Russian patent published in 2020 - IPC A43C7/08 

FIELD: satisfaction of human vital needs.

SUBSTANCE: invention relates to a draw string tightener, which consists of a base housing, a driving tightening wheel, wherein a hollow axis is made on the base body, on the console of which there fixed is a gear with external teeth having the possibility of engaging the internal teeth of the gear fixed in the inner surface of the drive tightening wheel made from the outside in the form of a coil, in internal surface of drive tightening wheel behind gear with internal teeth groove is made with width, which makes it possible to freely turn gear with outer teeth in recessed position of drive tightening wheel, spring is inserted into hollow axis for possible permanent fixation of gears between each other at sliding engagement of base body and drive tightening wheel provided with made limiting eyes, working surface for rotation of drive tightening wheel is coated with polyurethane, on working surface of coil of drive tightening wheel, glued the element of sticky fastener for initial fixation of lace.

EFFECT: technical result consists in reduction of laces tightening time for users with disabilities.

2 cl, 2 dwg