REVERSE CROSSBOW

摘要

The invention relates sports and hunting throwing weapon. Reverse crossbow contains limbs riser 1 in combination with limbs 2, cams 9, bowstrings and cables 11,12,13, a barrel where said limbs riser is placed, a trigger mechanism 4 and a foregrip. The limbs riser 1 of limbs 2 is located on the edge of the barrel behind the trigger mechanism 4 and is centered about the barrel using a cone. The initial angle of installation of limbs 2 on their riser and the distance between the points of their fastening is chosen in such a manner that when rising the crossbow the axis of rotation of each cam 9 crosses the line parallel to the central axis of the crossbow. The cam 9 is placed with a possibility of rotation, where during such a rotation the said mechanical center does not cross the straight line parallel to the straight line connecting the mechanical center of said cam and the exit point of the said bowstring. The foregrip has a conic shape with roundings on its ends and it is placed at an angle of 10 to 25° to the said crossbow barrel. The invention provides the improving the maximal initial speed of the thrown projectile, improving the accuracy and grouping of shooting, reducing the overall dimensions of a crossbow, decreasing the kickback, noise and vibrations when shooting, simplifying the process of assembly and disassembly of a crossbow, making the replacement of bowstring and cables easer, improving the balancing and ergonomic properties of a crossbow.