A nail cartridge for a pneumatic nail driving device, comprising:
- an elongated cartridge housing that extends in a longitudinal direction, that has top and bottom ends, front and rear sides, and left and right open ends and that defines therein a nail groove extending in said longitudinal direction from said left open end to said right open end and extending upwardly from said bottom end of said housing and adapted to receive nails which are to be aligned in said longitudinal direction, a plate receiving space extending along the length of said nail groove and extending upwardly from said nail groove to said top end of said housing and having a front side, and a sliding passage disposed sidewisely at said front side of said plate receiving space and extending along the length of said plate receiving space, said housing including upper and lower partitions that have top and bottom ends, that are disposed between said plate receiving space and said sliding passage, that extend along the length of said sliding passage, and that are vertically registered with each other to define therebetween a gap so as to permit said sliding passage to be in spatial communication with said plate receiving space, said housing being formed with upper and lower recesses which are vertically registered with each other, which extend from said top ends of said upper and lower partitions through said bottom ends of said upper and lower partitions, and which are disposed adjacent to said right open end of said housing;
- a nail pushing plate disposed and movable in said longitudinal direction in said plate receiving space, spanning said upper and lower partitions, and having an upper portion received in said plate receiving space and a lower portion extending downwardly from said upper portion into said nail groove, said nail pushing plate being adapted to push the nails in said nail groove to move from said right open end to said left open end;
- a first urging member disposed in said sliding passage and having one end that is secured to said housing adjacent to said left open end of said housing, and an opposite end that is movable in said longitudinal direction in said sliding passage and that is connected to said nail pushing plate so as to urge said nail pushing plate to move from said right open end to said left open end of said housing;
- and
- a second urging member for urging said nail pushing plate in a manner that when said nail pushing plate is moved in said plate receiving space to a first position where said upper and lower portions of said nail pushing plate are laterally and respectively registered with said upper and lower recesses, said nail pushing plate will be moved frontwardly by said second urging member to a second position where said upper portion of said nail pushing plate is selectively received in one of said sliding passage and said gap and is retained therein, and where said lower portion of said nail pushing plate is sidewisely offset from said nail groove so as to permit said nail groove to be cleared of said nail pushing plate and to thereby permit loading of the nails into said nail groove from said right open end of said housing.