DRIVE TOOL Russian patent published in 2014 - IPC B25D17/24 

FIELD: process engineering.

SUBSTANCE: invention relates to hand tool. Proposed tool comprises case, adapter linear drive and dynamic damper arranged in said case. Dynamic adapter comprises casing, counterweight arranged therein to displace there along and resilient means connecting said counter weight with said casing. Said casing houses multiple cylindrical elements with their ends facing each other coaxially. Said cylindrical elements can displace in lengthwise direction relative to each other. Every resilient element shifts said cylindrical elements to have them spaced apart. Said cylindrical elements are retained in tool case by resilient element shifting force. Every said cylindrical element is furnished with vent element extending radially outward from cylindrical element. Vent element mount is arranged at tool case. Vent element is fitted in its mount across cylindrical element lengthwise direction. Note here that at least one vent element displaces relative to cylindrical element lengthwise axis.

EFFECT: decreased sizes of dynamic damper.

12 cl, 18 dwg