Recoilless projectile launcher

F - Mech Eng,Light,Heat,Weapons – 41 – A

Patent

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Details

F41A 1/08 (2006.01)

Patent

CA 2100331

A projectile launcher and in particular a mass/countermass projectile launcher in which the piston intercepts) comprises a braking collar (8) made of a material which exhibits constrained progressive crushing. When a projectile (18) is fired the launching piston (10) impacts upon the braking collar (8) at the muzzle of the launcher and initiates constrained progressive crushing in the collar (8). The crushing of the collar (8) absorbs the kinetic energy of the piston (10) thus arresting the axial motion of the piston (10). The projectile launcher according to the present invention can be less massive than similar launchers that use conventional metal piston intercepts which is an advantage if the launcher is designed to be shoulder-launched by a human operator. The type of collar material preferably used is made of a solid filler embedded in a plastics matrix and in particular the solid filler is made of reinforcing fibres.

Lanceur de projectile sans recul et en particulier un lanceur de projectile masse/contremasse dans lequel le ou les intercepteurs de piston comprennent un collier de freinage (8) réalisé en une matière caractérisée par un écrasement progressif forcé. Lorsqu'on tire le projectile (18), le piston de lancement (10) frappe le collier de freinage (8) au niveau de la bouche du lanceur et amorce un écrasement progressif forcé du collier (8). L'écrasement du collier (8) absorbe l'énergie cinétique du piston (10) arrêtant ainsi son mouvement axial. Le lanceur de projectile selon l'invention peut avoir des dimensions moins importantes que celles des lanceurs semblables faisant appel à des intercepteurs de piston métalliques classiques, ce qui peut être intéressant si le lanceur est conçu pour être tiré de l'épaule de l'opérateur. La matière utilisée pour le collier est de préférence une charge solide noyée dans une matrice de matière plastique et en particulier la charge solide est composée de fibres de renforcement.

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