Patent ID: 8668317

Claim:
A liquid container comprising: a first casing having an opening portion; and a second casing that is configured to be attached to the first casing and close the opening portion of the first casing; wherein the first casing comprises at least one first engaging portion which is formed inside the first casing; the second casing comprises at least one flexible second engaging portion which is configured to project from the second casing and be inserted into the first engaging portion; and the first engaging portion comprises a first guide portion that guides the second engaging portion when the first engaging portion engages the second engaging portion; wherein the first engaging portion comprises a projecting portion and the second engaging portion comprises a claw portion that is configured to engage the projecting portion; and wherein when the claw portion of the second engaging portion and the projecting portion of the first engaging portion are engaged together, the claw portion is covered with an outer wall of the first casing.