Patent ID: 8626036

Claim:
A powder container comprising: a containing portion that is capable of containing powder therein, the containing portion having an opening through which the powder passes; an opening/closing member that is supported by the containing portion so as to be movable between an open position at which the opening is open and a closed position at which the opening/closing member closes the opening, the opening/closing member being supported by the containing portion with play that allows the opening/closing member to move in a direction that intersects a direction in which the opening/closing member moves between the open position and the closed position; an opening restraining portion provided on the containing portion; an opening restrained portion provided on the opening/closing member, the opening restrained portion restraining movement of the opening/closing member toward the open position by contacting the opening restraining portion when the opening/closing member moves from the closed position to the open position; an urging member that urges the opening/closing member in a direction such that movement of the opening/closing member is restrained by the opening restraining portion and the opening restrained portion when the opening/closing member is at the closed position; and an opening/closing contact portion provided on the opening/closing member, the opening/closing contact portion being contactable with an opening/closing contacted portion of an apparatus into which the containing portion is removably installed, wherein the opening restrained portion is disposed such that a direction of an opening force that is generated when the containing portion is moved in a direction in which the containing portion is installed into the apparatus is inclined with respect to the direction in which the opening/closing member moves, and the opening restrained portion is disposed downstream of an imaginary line with respect to a direction in which the opening/closing member is inclined around the opening/closing contacted portion, the imaginary line extending in the direction of the opening force from a contact position at which the opening/closing contact portion contacts the opening/closing contacted portion.