| 摘要 |
<p>A disc cartridge (1) is provided which comprises a cartridge body (4) having spinnably encased therein a disc (5) and having also formed therein read/write openings (9) through which radially extending portions of main surfaces of the disc are exposed, a shutter member (13) coupled movably to the cartridge body (4), and a locking member (23). The shutter member (13) is kept locked to close the read/write openings (9) with a bent engagement lug (20) formed on a sliding guide (19) portion being engaged on the locking member (23). To reinforce the base portion of the engagement lug (20), the shutter member (13) has provided thereon a reinforcement portion formed by bending from the sliding guide portion integrally with the engagement lug. Thus, the engagement lug can be prevent from being deformed under a shock, if any, applied to the disc cartridge (1) and the shutter member (13) can positively keep closing the read/write openings (9). <IMAGE></p> |
