Patent ID: 6964391

Claim:
A recording tape cartridge comprising: a case formed to be hollow by a ceiling plate and a bottom plate which oppose one another being joined by peripheral walls, the case rotatably accommodating, in an interior of the case, a single reel on which a recording tape is wound; an opening provided in the peripheral walls, the opening being for pulling the recording tape out of the case; a leader portion provided at a distal end of the recording tape, and held within the case so as to face the opening; and a pair of upper and lower cut-out portions communicating with the opening at opposing positions of the ceiling plate and the bottom plate, respectively, the cut-out portions exposing upper and lower ends of the leader portion when the leader portion is in a state of being held at the case; wherein the leader portion has a leader tape connected to the distal end of the recording tape, and a pair of attaching pieces which extend toward the outer sides of the leader tape in a direction transverse to the direction which the leader tape is pulled out of the case, and wherein the leader portion further has substantially rectangular holding blocks respectively attached to the pair of attaching pieces.