Patent ID: 9126415
Filing Date: 2015-09-08
Classification: B41J

Abstract:
1. A print fluid cartridge comprising: a cartridge body having a reservoir configured to store print fluid therein; a print fluid supply portion integrally formed with the cartridge body, the print fluid supply portion including a cylindrical side wall protruding outwardly from the cartridge body in a prescribed direction, the cylindrical side wall having a base end and a protruding end opposite to each other in the prescribed direction, the cylindrical side wall defining therein an inner space of the print fluid supply portion, the print fluid supply portion being integrated with the cartridge body at the base end of the cylindrical side wall such that the inner space of the print fluid supply portion is in fluid communication with an inside of the reservoir, the print fluid supply portion further including a protruding-end wall disposed at the protruding end of the cylindrical side wall, the protruding-end wall extending inwardly from the cylindrical side wall in a direction intersecting with the prescribed direction, the protruding-end wall having an inner peripheral edge defining a protruding-end opening; a tubular member, at least a portion of which is disposed in the inner space of the print fluid supply portion with a gap being formed between an inner surface of the cylindrical side wall and an outer surface of a portion of the tubular member disposed in the inner space of the print fluid supply portion, the tubular member extending in the prescribed direction and having a first end and a second end opposite to each other in the prescribed direction, the first end being disposed nearer to the protruding-end wall than the second end to the protruding-end wall in the prescribed direction, the tubular member being opened at both of the first end and the second end; an elastic member provided in the inner space of the print fluid supply portion, the elastic member being disposed between the first end of the tubular member and the protruding-end wall of the print fluid supply portion, the elastic member being formed with a through-hole through which the protruding-end opening is in fluid communication with an inside of the tubular member, the elastic member having an outer peripheral portion, the outer peripheral portion having a first surface and a second surface, the first surface facing in the prescribed direction and surrounding an entire periphery of the through-hole, the second surface facing in a direction opposite to the prescribed direction and surrounding the entire periphery of the through-hole, the first surface being in contact with a portion of the protruding-end wall that surrounds an entire periphery of the protruding-end opening, the second surface being in contact with the first end of the tubular member; a lid body disposed in the inside of the tubular member and configured to move between a first position, at which the lid body closes the through-hole of the elastic member, and a second position, at which the lid body opens the through-hole of the elastic member, the first and second positions being separate from each other in the prescribed direction; and an urging member disposed in the inside of the tubular member and configured to urge the lid body in a direction toward the first position.