DRIVE ASSEMBLY FOR PERSONAL HYGIENE DEVICE Russian patent published in 2019 - IPC A61C17/16 

FIELD: medical equipment.

SUBSTANCE: group of inventions includes a drive assembly and a personal hygiene device comprising a drive assembly, relates to medical equipment and is intended for effective tooth brushing. Drive assembly for a personal hygiene device comprises a main resonator, an auxiliary resonator, at least one fixed point located between the main resonator and the auxiliary resonator, first and second spring elements, connecting spring and drive. Main resonator is connected to a drive shaft representing a transfer component and made with possibility to transfer vibrations generated by a driving unit, a brush head element. Auxiliary resonator is configured to reduce vibrations transferred from the drive unit to the body part of the personal hygiene device. First spring element is connected at the first end to the main resonator and at the second end to one of given at least one fixed point. Second spring element is connected at first end to auxiliary resonator and at second end to one of said at least one fixed point. Connecting spring is connected at the first end to the main resonator and at the second end to the auxiliary resonator. Drive is configured to apply force to at least one of main resonator and auxiliary resonator. Personal hygiene device includes a body part, a brush head element and a drive assembly.

EFFECT: inventions widens the range of tools for the specified purpose.

11 cl, 7 dwg