Patent ID: 6977797

Claim:
A cartridge for accommodating a recording medium, which cartridge has a first mode which prohibits recording of information onto the recording medium and a second mode in which recording of information onto the recording medium is possible, the cartridge comprising: a case provided with a lower case having a bottom plate, and an upper case joined together with the lower case so as to have an accommodating space at an interior, the recording medium being accommodated in the interior; a switching member for switching the mode, which is provided so as to be movable along the bottom plate of the lower case between a first position corresponding to the first mode and a second position corresponding to the second mode, and which is selectively positioned at the first position and the second position; a flexible member having flexibility and provided within the case so as to generate an urging force in a restoring direction by being bent; and an abutment member having a region which is abutted by the flexible member, wherein the flexible member and the abutment member are disposed so as to form a structure for cooperating with each other to position the switching member at one of the first position and the second position, the abutment member has at least one inclined surface, and when the upper case and the lower case are moved relatively so as to be joined together, the flexible member is moved from a state of non-contact with the inclined surface to a state of contact with the inclined surface, such that the flexible member abuts the inclined surface and relatively slides on the inclined surface, whereby relative positions of the flexible member and the abutment member are determined and the switching member is positioned at one of the first position and the second position.