| 摘要 |
<p>A cartridge (6) has a shutter (61) for exposing or closing a disk (60) contained in a shell (9) adapted to move forward/backward. The shell (9) is plugged into a device having a pawl piece (30) for opening the shutter (61) and a spring piece (37) fittable into the shutter (61) and having a height different from that of the pawl piece (30). A slit (5) through which the pawl piece (30) enters is made in a side face of the shell (9) near the shutter (61). A corner portion of the shell (9), near the slit (5), is a butting face (90). A guide groove (50) widened forward is formed at the front end of the slit (5) in the butting face (90). The butting face (90) is arched or slanted. A portion (B) of the butting face (90) at which the movement path thereof and the end of the pawl piece (30) intersect is before a portion (A) at which the movement path and the spring piece (37) intersect.</p> |
