Patent ID: 6286729
Filing Date: 2001-09-11
Classification: G01F

Abstract:
A feeding device for a caulking gun comprising:a frame including a first recess and a second recess defined in the frame, a division wall formed between said first recess and said second recess, and a block extending from an interior periphery of said second recess;a handle extending out from said frame below said second recess;a drive grip with a through hole in said first recess;a brake grip with a through hole in said second recess;a plunger shaft extending through said frame and penetrating said through hole in said drive grip and said brake grip, the diameter of said through holes of said drive grip and said brake grip being slightly larger than a diameter of said plunger shaft,a first spring mounted around the plunger shaft between a periphery of said first recess and said drive grip;a second spring mounted around the plunger shaft between said division wall and said brake grip, said first spring having a restitution force stronger than that of said second spring; anda trigger pivotally attached to said frame below said first recess to drive said drive grip and said plunger shaft forward, wherein the improvements comprises:a groove defined in said division wall and communicating between said first recess and said second recess, said groove corresponding to said block; anda pressure release rod slidably received in said groove of said frame and pushing said brake grip when the trigger pressure on said drive grip is released, such that said brake grip is forced to a vertical position relative to said plunger shaft due to said pressure release rod pressing said brake grip against said block.