SHUTTER MEMBER FOR DISC CARTRIDGE, DISC CARTRIDGE AND DISC RECORDING/REPRODUCING APPARATUS

摘要

DISCLOSED IS A DISC CARTRIDGE INCLUDING AN OPTICAL DISC (2) AND A MAIN CARTRIDGE BODY UNIT (5) ROTATABLY HOUSING THE OPTICAL DISC (2). A LATERAL SURFACE OF THE MAIN CARTRIDGE BODY UNIT AS AN INSERTING END OF THE MAIN CARTRIDGE BODY UNIT INTO THE RECORDING AND/OR REPRODUCING APPARATUS IS A SEMICIRCULAR ARCUATE SECTION (7) HAVING THE CENTER OF THE OPTICAL DISC ACCOMODATED IN THE MAIN CARTRIDGE BODY UNIT AS CENTER.THE DIRECTION OF INSERTION OF THE MAIN CARTRIDGE BODY UNIT INTO THE RECORDING AND/OR REPRODUCING APPARATUS MAY BE DISCRIMINATED READILY TO ACHIEVE SMOOTH LOADING.