초록 ▼

A safety fuze for a hand grenade comprises a fuze body, a delay case assembly, a detonator assembly, an initiator lever assembly, a cover assembly, and a pull ring assembly. The fuze body has a head, a stem, and a central portion, and a bore extending longitudinally therethrough. The delay case asse

A safety fuze for a hand grenade comprises a fuze body, a delay case assembly, a detonator assembly, an initiator lever assembly, a cover assembly, and a pull ring assembly. The fuze body has a head, a stem, and a central portion, and a bore extending longitudinally therethrough. The delay case assembly comprises a delay case matingly received in the bore and having an upper primer portion containing a primer, a lower delay portion containing ignition, delay and penetration charges, a sealant separating the primer portion from the delay portion, and an air gap separating the primer portion from the ignition charge. The detonator assembly comprises a detonator case matingly receiving the fuze body stem at the top thereof and being in sealing engagement with the fuze body, and has an explosive detonator charge at the bottom thereof. A gap is provided between the fuze body bottom and the explosive charge. The initiator lever assembly comprises an elongated initiator lever rotatably mounted at its proximal end to the fuze body head and biased in its primed position. A firing pin formed integrally with the initiator lever is positioned to engage the primer when the initiator lever assembly is in its primed position. The cover assembly covers the top and back of the fuze body head. Either the initiator lever or the cover assembly can be elongated to define a handle for holding and throwing the grenade. A rotatable safety latch can be mounted on the cover assembly.

대표청구항 ▼

A fuze for a hand grenade comprising: (a) a fuze body having a top having a recess therein, a closed bottom, a head adjacent said fuze body top, a stem adjacent said fuze body bottom, and a central portion intermediate said fuze body head and stem, and a bore extending longitudinally through said fu

A fuze for a hand grenade comprising: (a) a fuze body having a top having a recess therein, a closed bottom, a head adjacent said fuze body top, a stem adjacent said fuze body bottom, and a central portion intermediate said fuze body head and stem, and a bore extending longitudinally through said fuze body, said recess having an opening therein, said opening in said recess defining the top of said bore and said closed of said fuze body defining the bottom of said bore, said head having a pair of opposed front and back walls, a pair of opposed side walls having back edges, and said fuze body central portion including engaging means for engaging the grenade; (b) a primer positioned in said top of said bore and a delay charge positioned adjacent the bottom of said bore, (c) detonator assembly means for detonating the hand grenade, said detonator assembly means including a detonator case sealingly engaging the exterior of said fuze body stem and an explosive detonator charge positioned in said detonator case; (d) an initiator lever assembly mounted on said fuze body and rotatable between an unprimed position and a primed position, comprising: an initiator lever having a longitudinal plane of symmetry, a distal end and a proximal end and top and bottom surfaces, said initiator lever being rotatable about said proximal end thereof between a first position corresponding to said unprimed position and a second position corresponding to said primed position, said initiator lever being elongated to prevent said initiator lever from being unknowningly released; mounting means for mounting said proximal end of said initiator lever to said fuze body head adjacent said fuze body top for rotation about an axis perpendicular to said plane of symmetry of said initiator lever between said first position and said second position; biasing means for biasing said initiator lever in said second position; and a firing pin mounted on said initiator lever, said firing pin being positioned on said initiator lever to engage said primary when said initiator lever assembly is in said primed position; (e) a cover assembly comprising a cover piece having a top portion covering said fuze body top and a bottom portion covering said back edges of said side walls, said cover assembly having pin-receiving apertures therein; and (f) a pull ring assembly having elongated retaining pin means for retaining said initiator lever in said first position thereof when said retaining pin is inserted in said pin-receiving apertures. A fuze for a hand grenade comprising: (a) a fuze body having a head, a stem, and a central portion intermediate said head and said stem, and a bore extending longitudinally through said head, said central portion, and stem, said central portion including engaging means for engaging the grenade; (b) a primer positioned in the top of said bore; (c) detonator assembly means in sealing engagement with the exterior of said stem for detonating the hand grenade; (d) an initiator lever assembly mounted on said fuze body and rotatable between an unprimed position and a primed position, comprising: an initiator lever having a longitudinal plane of symmetry, a distal end, and a proximal end, said initiator lever being rotatable about said proximal end thereof between a first position corresponding to said unprimed position and a second position corresponding to said primed position, said initiator lever being elongated to define a handle to be restrained while holding and throwing the grenade; mounting means for mounting said proximal end of said initiator lever to said fuze body head for rotation about an axis perpendicular to said plane of symmetry of said initiator lever between said first position and said second position; biasing means for biasing said initiator lever in said second position; and a firing pin mounted on said initiator lever, said firing pin being positioned on said initiator lever to engage said primer when sad initiator lever assembly is in said primed position; (e) cover assembly means for protecting said primer and bearing against said initiator lever assembly; and (f) retaining means for retaining said initiator lever in said first position thereof.