| 摘要 |
In a single-reel type tape cartridge, a coupling portion 20 of a leader tape 10 includes a pair of winding pieces 22 disposed at opposite sides of a cutout 21 and each winding piece 22 includes a base portion (23) and a turnover portion (24) wound around a pin 12 of a leader member 11 so as to be ultrasonically welded to the base portion (23). The turnover portion (24) is divided into a completely welded (W1) area and an incompletely welded area (W2) disposed outside each of the opposite side edges of the completely welded area (W1). When the device is being made, an anvil 26 supports the coupling portion 20 of the leader tape 10 during ultrasonic welding and has a pair of anvil faces (28), each having a width smaller than that of the turnover portion (24) and substantially equal to the completely welded area (W1). |
