Container member and image forming apparatus

A container member comprising:

• a container body that contains a recording medium and that tilts with respect to a horizontal direction such that a leading edge of the contained recording medium is higher than a trailing edge;
• a trailing edge restriction portion that includes a facing portion that faces the trailing edge of the recording medium that is contained in the container body in a front-rear direction of the recording medium, that comes into contact with the trailing edge in the front-rear direction, and that restricts a position of the trailing edge of the recording medium, wherein the trailing edge restriction portion is movable and configured to move in a predetermined range in the front-rear direction;
• and
• a projecting portion that is included in the trailing edge restriction portion and that projects from an upper edge portion of the facing portion forward in the front-rear direction, wherein the projecting portion projects from the entire upper edge portion of the facing portion in a width direction of the recording medium, so that the projecting portion contacts a center of the trailing edge of the recording medium in a width direction.

A container member comprising:

• containing means for containing a recording medium, the containing means tilting with respect to a horizontal direction such that a leading edge of the contained recording medium is higher than a trailing edge;
• means for coming into contact with the trailing edge of the recording medium that is contained in the containing means in a front-rear direction of the recording medium and configured to move in a predetermined range in the front-rear direction for restricting a position of the trailing edge of the recording medium;
• and
• means for restricting movement of the trailing edge in a thickness direction of the recording medium that is contained in the containing means, and comprises a projecting portion projected from the entire upper edge portion of the trailing edge restriction portion for restricting a center of the trailing edge in a width direction of the recording medium.