Patent ID: 9333755
Filing Date: 2016-05-10
CPC Classification: B41J

Claim Text:
1. A cartridge case that supports a bag storing a liquid, the cartridge case comprising: a case main body which includes a first side wall and a second side wall that extend in a first direction and that face each other, and which has an end open portion that is an open portion between end portions in the first direction of each of the first side wall and the second side wall; a shaft portion that is arranged to take up an elastic member from an end portion on a second direction side of the elastic member and to move in the first direction in accordance with a liquid storage amount in the bag, the elastic member generating a restoring force in the first direction by being extended in the second direction, the second direction being a direction opposite to the first direction, the shaft portion extending in a third direction that is a direction in which the first side wall and the second side wall face each other and that is orthogonal to the first direction, and the shaft portion having a first protruding end portion and a second protruding end portion, the first protruding portion protruding in the third direction from one end in the third direction of the shaft portion, the second protruding portion protruding in the third direction from another end in the third direction of the shaft portion; a first side plate portion arranged inside the case main body on a first direction side and on an end portion on the first side wall side, the first side plate having a first arm portion, a first contact portion and a first display portion; the first arm portion extending in the first direction and supported by the first side wall such that the first arm portion can move along a fourth direction, the fourth direction being a direction that is orthogonal to the first direction and orthogonal to the third direction; the first contact portion provided on the first arm portion and arranged on a movement path of the first protruding end portion such that the first contact portion is configured to contact with the first protruding end portion that moves in the first direction; the first display portion provided in a fixed manner with respect to an end portion in the first direction of the first arm portion such that the first display portion moves along the fourth direction in accordance with the movement of the first arm portion; a second side plate portion arranged inside the case main body on the first direction side and on the end portion on the first side wall side, the second side plate having a second arm portion, a second contact portion and a second display portion; the second arm portion extending in the first direction and supported by the first side wall such that the second arm portion can move along the fourth direction; the second contact portion provided on the second arm portion and arranged on the movement path of the first protruding end portion such that the second contact portion is configured to contact with the first protruding end portion that moves in the first direction; the second display portion provided in a fixed manner with respect to an end portion in the first direction of the second arm portion such that the second display portion moves along the fourth direction in accordance with the movement of the second arm portion; and an end in the first direction of the first contact portion being located at a different position from an end in the first direction of the second contact portion.