ARROWHEAD Russian patent published in 2010 - IPC A63B65/02 F42B6/02 

FIELD: sport.

SUBSTANCE: invention relates to sport projectiles for bow shooting. Arrowhead consists of sharpened envelope, cavity with placed in it laser, spiral surface for connection with shaft. Envelope is made with central opening for laser ray outlet. Sharpened part of envelope is made continuous with central channel and enclosed in it light-permeable rod. Laser is placed movable in cavity and is spring-loaded from each side. In cavity spiral surface is made. On envelope made are projections, placed on spiral line.

EFFECT: increase of arrow steadiness in flight.

2 cl, 2 dwg