Patent ID: 6371099
Filing Date: 2002-04-16
Classification: F41B

Abstract:
A paint ball gun comprising:a gun handle having an elongated mounting seat, and a handgrip portion extending downwardly from said mounting seat, said mounting seat being provided with a trigger and a latch member that is operably associated with said trigger and that projects upwardly from said mounting seat; an elongated gun barrel mounted on said mounting seat and formed with a longitudinally extending propelling chamber which has a front chamber portion with an open front end and a rear chamber portion with a rear end that is provided with a rear cap, a longitudinally extending recuperator chamber parallel to said propelling chamber, and a communicating hole which intercommunicates said propelling and recuperator chambers and which extends in a longitudinal direction of said gun barrel, said front chamber portion of said propelling chamber being adapted to be loaded with a paint ball therein; a propelling member disposed in said propelling chamber and movable between said front and rear chamber portions of said propelling chamber, said propelling member having a front section proximate to said front end of said propelling chamber, and an opposite rear section; a recuperating unit having a recuperator member disposed slidably in said recuperator chamber and formed with a latch groove for engaging releasably said latch member, and a first biasing spring for biasing said recuperator member to move forwardly; a connecting rod disposed slidably in said communicating hole, said connecting rod engaging said propelling member and said recuperator member such that said propelling member is movable together with said recuperator member; and a manually operable pull unit mounted on said rear chamber portion of said propelling chamber, said pull unit including a pull rod having a front rod portion proximate to said rear section of said propelling member and formed with an elongated slot which extends in the longitudinal direction of said propelling chamber, a rear rod portion which extends through said rear cap and which is provided with an operating knob that is disposed outwardly of said propelling chamber, and an annular flange formed between said front and rear rod portions and extending around an axis of said rear rod portion, said connecting rod extending into said elongated slot so as to be slidable therealong, and a second biasing spring sleeved around said rear rod portion of said pull rod and disposed between said rear cap and said annular flange of said pull rod for biasing said pull rod to move forwardly relative to said gun barrel; said operating knob being operable to pull said pull rod rearwardly against biasing action of said second biasing spring so as to move said connecting rod with said pull rod and to enable said connecting rod to pull said propelling member rearwardly, thereby resulting in corresponding rearward movement of said recuperator member in said recuperator chamber for engaging said latch groove with said latch member; said trigger being operable to disengage said latch member from said latch groove, thereby permitting forward movement of said recuperator member and said propelling member due to biasing action of said first biasing spring in order to propel the paint ball from said open front end of said propelling chamber.