PERCUSSION TOOL Russian patent published in 2014 - IPC B25D17/24 B25D11/06 F16F7/116 

FIELD: process engineering.

SUBSTANCE: invention relates to percussion-type tools. This tool comprises motor, part swinging axially at motor revolution, drive element, drive part, first air chamber, second air chamber and dynamic damper. Drive element can reciprocate at action of swinging part. First air chamber allows pressure pulsation caused by drive element reciprocation. Note here that said pulsation drives the working fluid. Second air chamber allows pressure pulsation caused by drive element reciprocation Dynamic damper comprises weight and resilient element to apply displacing force thereto. Note here that weight at said displacing force vibrates due to pressure pulsation in second air chamber. Drive part is mounted at swinging part to create pressure pulsation in second air chamber. Drive part and drive element are arranged at opposite side of swinging element.

EFFECT: forced vibration of dynamic damper.

6 cl, 5 dwg