Patent ID: 6974102

Claim:
A tape cartridge which can be inserted into a tape drive having an opening member which can operatively engage with the tape cartridge at a time when the tape cartridge is inserted, the tape cartridge comprising: a case which is hollow, and which is formed of a synthetic resin, and which has an upper case and a lower case each formed from a base plate and a peripheral wall, and which is formed by the peripheral walls abutting one another, the case having a front wall portion facing in a cartridge insertion direction, a side wall portion substantially parallel to the cartridge insertion direction, and an inclined wall portion connecting the front wall portion and the side wall portion and inclined with respect to the cartridge insertion direction; a tape access opening provided at the inclined wall portion of the case; and a ridge line portion extending in a vertical direction and formed at an intersection of the front wall portion of the case and the inclined wall portion of the case, wherein a draft of the ridge line portion at the upper case and a draft of the ridge line portion at the lower case are both smaller than a draft of the front wall portion and a draft of the inclined wall portion at the sides of the ridge line portion.