Magnetic recording tape cartridge

Claim 1

A magnetic recording tape cartridge comprising: a) a bottom section and a top section assembled together by a plurality of tapping screws so as to provide a cartridge case having a front wall, top plate, bottom plate and a tape chamber with a plurality of openings formed in said front wall, b) a pair of tape reels juxtaposed in said tape chamber, each of the tape reels rotatably mounted relative to a drive shaft insertion hole defined in a bottom plate of said bottom section of the cartridge case, c) a magnetic recording tape wound around said pair of tape reels, the intermediate portion of said recording tape being stretched running along a predetermined path defined by said front wall, d) a column-like boss member projected on the central portion of one of the plates of the top section or bottom section, said boss member having a screw insertion hole for threadedly receiving said one of the tapping screw, and e) a partition wall member projected on said one of the plates in a space between the column-like boss member and the peripheral edges of the pair of reels to provide a chamber for enclosing scraps produced from said column-like boss member during insertion of the tapping screw into the hole of the column-like boss member so as to prevent the scraps being prevented from entering onto the magnetic recording tape extending between the pairs of tape reels.