Patent ID: 7497397

Claim:
A cartridge case comprising: a case main body where a guide part is disposed on an inner surface of a top plate; a tape reel that includes a hub in the shape of a bottomed-cylinder and is rotatably enclosed inside the case main body; and a locking member that is guided in a state where rotation is restricted by the guide part, is enclosed within the case main body so as to be capable of moving in a direction toward and away from a base plate of the hub, and restricts rotation of the tape reel, wherein the guide part includes a cylindrical first part erected on the inner surface of the top plate, and a plate-like second part erected on the inner surface of the top plate, and the locking member includes a main part, a cylindrical third part that is erected on the main part and engages the first part in a state where a peripheral wall of the first part and a peripheral wall of the third part face each other, and a plate-like fourth part that is erected on the main part and contacts the second part to restrict rotation of the locking member.