Pneumatic speargun for spearfishing and method of use

摘要

A pneumatic speargun for spearfishing and a related method of loading and firing includes a cylinder having a head and a body with a hand grip, a slide guide for a spear, a reservoir for a pressurized fluid, and a barrel connected to the reservoir. A piston is slidingly mounted in the barrel for movement from an end loading positions, in which it is retained, to an end discharge position. A trigger releases the retaining system and causes the piston to move from the selected end loading position to the end discharge position. The piston in the loading position is removably connected to the spear via a cable and a return system and the spear becomes propelled as the piston moves from the end discharge position to the selected end loading position by pulling the cable.

主权项

1. A pneumatic speargun for spearfishing comprising:
a cylinder (1) having a head (10) at a front of said cylinder and a body with a hand grip (11) at a back of said cylinder; a continuous or discontinuous slide guide (2) for a spear (7); a reservoir (3) for a pressurized fluid; a barrel (4) connected with said reservoir (3); a piston (5) slidingly mounted in said barrel (4), for movement from one or more loading positions, in which said piston is retained by a retaining system, to an end discharge position; and a triggering system configured to release said retaining system and cause the piston (5) to move from the selected end loading position to the end discharge position, said piston (5) in the loading position being mechanically connected to said spear (7) such that the piston causes the spear (5) to be propelled as the piston (5) moves from the selected end loading position to the end discharge position, wherein said piston (5) is removably connected to the spear (7) via a cable (6) and a return system, such that the piston (5) is moved from the end discharge position to the selected end loading position by pulling said cable (6).