IMPACT TOOL Russian patent published in 2013 - IPC B25D16/00 B25D11/04 B25D11/06 B25D17/06 B25D17/08 

FIELD: process engineering.

SUBSTANCE: invention relates to percussion-type tools. Proposed tool comprises body, drive, tool holder retaining the tool tup and angular positioner. Angular positioner comprises first and locks. First lock is engaged with said body so that it cannot revolve about tool top relative to the body but can revolve about tool tip relative to tool holder. Second lock is arranged opposite the first one in tool axial direction and engaged with tool holder so that it cannot revolve about tool top relative to the body but can displace axially relative to tool holder. Second lock can engage with first lock and be disengaged therefrom to displace in tool holder axial direction.

EFFECT: longer life, decreased weight.

10 cl, 9 dwg