Cartrdige and shutter used in the same

摘要

The shutter member ( 1 ) is a shutter member used in a cartridge having a case member. The case member includes a medium storage section for storing an information medium having an information layer and a window section configured to allow at least a head to be inserted. The head is used to perform a recording operation or a reproduction operation for the information layer. The shutter member ( 1 ) includes a base member ( 2 ) operable to slide along a sidewall of the case member and a plate member ( 3 ) engaged with the base member ( 2 ). The plate member ( 3 ) is operable to open/close the window section of the case member in accordance with a sliding motion of the base member ( 2 ). The base member ( 2 ) and the plate member ( 3 ) are engaged with each other such that the plate member ( 3 ) can be removed from the base member ( 2 ).