MECHANICAL SHEARS FOR DISMANTLING A LARGE AIRCRAFT AND A WORKING VEHICLE FOR DISMANTLING A LARGE AIRCRAFT Russian patent published in 2020 - IPC B23D25/14 B23D17/00 E02F3/26 E04G23/08 

FIELD: machine building.

SUBSTANCE: present invention relates to mechanical shears for dismantling of large aircraft, suitable for dismantling of large aircrafts, such as passenger aircrafts, in which high-strength aluminum alloy or similar materials are used, and a working vehicle for dismantling large aircrafts, equipped with said mechanical shears. As the cutting knives of the first jaw, the mechanical shears comprise an end knife, the tip of which cuts into the object to be cut, a pair of first parallel cutting knives that are inclined at an obtuse angle relative to the end knife cutting direction and are located on both sides of the knife width, and a pair of second parallel cutting knives, which are inclined at an obtuse angle relative to attachment of first parallel cutting blades and are located on both sides of width of blade. Mechanical shears additionally contain cutting knives of the second jaw equipped with receiving knives for these cutting blades. As the end knife, the mechanical shears comprise a sharpened knife comprising an end portion and a pair of end wedge-like knives arranged on both sides of said end portion, and the width of such knives increases towards the rear end, and a pair of wedge-like knives which are inclined at an obtuse angle relative to the attachment portion of the rear end portion of the end wedge-like knives and are located near the first parallel cutting knives.

EFFECT: higher efficiency of cutting.

5 cl, 6 dwg