POWER TOOL Russian patent published in 2019 - IPC B25F5/00 B23Q3/12 B24B23/04 B24B45/00 B27B19/00 B27B5/30 

FIELD: turning; drilling.

SUBSTANCE: invention relates to a power tool. Machine comprises tool seat designed to hold a tool on the power tool. Tool seat has torque transfer area and a holding device. Torque transfer area for transferring drive force to the power tool has two outlet surfaces located at a distance from said output axis, each having multiple surface points. Tangential planes in these surface points are inclined relative to axial plane, which includes said output axis. Tangential planes are inclined relative to the radial plane, which extends perpendicular to the output axis. Normal to one of said tangential planes is oriented radially towards the output axis. Torque transfer area has a sidewall and a hollow conical recess is formed therein, having a cross-section which varies from the sidewall to output in a plane orthogonal to said output.

EFFECT: as a result, output torque is reliably transmitted through the tool seat.

23 cl, 17 dwg