Patent ID: 6641020
Filing Date: 2003-11-04
Classification: B25C

Abstract:
A nail box device for a nailing gun comprising:a nailing gun provided with a nail striking guide base at the front end, and a rowed nail pushed into said nail striking guide base for use; a nail box secured under said nail striking guide base, said nail box consisting of a bottom base and a cover body pivotally combined together, said bottom base formed with a fitting tube at one side, said fitting tube formed axially with a shaft hole, ea slide groove bored in one side of said shaft hole and communicating with the inner side of said nail box, a fitting opening formed near an intermediate location of said fitting tube, said bottom base formed with a pivotal tube at the other side, said pivotal tube formed axially with a pivotal hole, said pivotal tube having preset pivotal notches formed respectively at an upper and a lower portion, two parallel lengthwise slide rails provided at preset positions between said fitting tube and said pivotal tube, a round hole bored at a rear end between said two slide rails, said cover body formed with pivotal combining members at one side, said pivotal combining members respectively matching with said pivotal notches of said bottom base, each said pivotal combining member formed axially with a pivotal hole, a round pivot inserted through said pivotal hole of said pivotal tube and through said pivotal hole of said pivotal combining member, said round pivot pivotally combining said cover body together with said bottom base to enable said cover body to be opened and closed on said bottom base, said cover body provided with a fitting block on the other side, said fitting block formed axially with a locking hole, said fitting block fitted in said fitting opening of said bottom base, said cover body fixed with a projecting button facing said round hole of said bottom base; a bolting device composed of a bolting rod and a spring, said bolt rod formed axially with a position limiting slide groove, said bolting rod fitted in said shaft hole of said rear section of said fitting tube of said bottom base, a position limiting bolt inserted laterally through a preset position of said lower fitting tube and said position limiting slide groove, said position limiting bolt positioning said bolting rod in said shaft hole, said bolting rod able to slide limitedly in said shaft hole, said bolting rod having its upper portion formed with a locking bolt having a comparatively small diameter, said locking bolt moving together with said bolting rod in said shaft hole, said locking bolt able to extend into said locking hole of said fitting block when said fitting block is fitted in said fitting opening of said bottom base, said bolting rod having an actuated member protruding outward from one side, said actuated member positioned in said slide groove at one side of said shaft hole of said bottom base, said spring having its upper end pushing against the lower side of said bolting rod and its lower end resisting against a bottom cover, said bottom cover secured on the bottom side of the handle of said nailing gun, said spring able to push said bolting rod upward; a nail pushing device composed of a nail pushing plate and a pull plate, said nail pushing plate having its front end formed with a push member for pushing and feeding a rowed nail, said nail pushing plate having its rear end bored with an engage slot, an actuating member positioned beside said push member to act relatively with said actuated member of said bolt rod, two slide members respectively disposed near the opposite sides of side engage slot, said two slide members slidably positioned between said two slide rails of said bottom base and extending out of said bottom base, said pull plate provided inside with a pull member, said pull plate having opposite sides respectively formed with a fixing member, said two fixing members correspondingly combined with said two slide members of said nail pushing device for moving together, a whirled spring pivotally fitted between said two fixing members, an elastic plate of said whirled spring having one end fixed between said nail striking guide base and said bottom base, said elastic plate of said whirled spring having the other end wound around a shaft, said shaft pivotally disposed between said two fixing members; and a blocking device composed of a fixing base, an engage member and a spring, said fixing base secured on the outer side of said round hole of said bottom base, said fixing base formed inside with an accommodating slot aligned concentrically with said round hole of said bottom base, said engage member fitted in said round hole and having its lower rod extending out of said accommodating slot and fixed by a clasp, said engage member having its upper end formed with an engage button to be clasped in said engage slot of said nail pushing plate, said spring received in said accommodating slot and having opposite ends respectively resisting against said accommodating slot and the bottom side of said engage button, said spring pushing said engage button to move upward.