Sheet feeding apparatus and image forming apparatus

A sheet feeding apparatus comprising:

• a sheet feeding cassette detachably attached to an apparatus body, which stores sheets;
• a sheet feeding portion which feeds the sheet stored in the sheet feeding cassette;
• a pair of lateral-end regulating portions which is provided in the cassette to regulate a lateral-end position of the sheet in a width direction orthogonal to a sheet feeding direction;
• a regulating portion which is projected to a position higher than an upper surface of the stacked sheet in an abutting surface of each of the pair of lateral-end regulating portions, the abutting surface abutting on a lateral end of the sheet;
• and
• an upper regulating portion which is projected onto the sheet feeding cassette side at a position higher than the regulating portion from an inner wall surface of an attaching space, in which the sheet feeding cassette of the apparatus body is attached.

An image forming apparatus comprising:

• an image forming portion;
• and
• a sheet feeding apparatus which feeds a sheet to the image forming portion, the sheet feeding apparatus including:
• a sheet feeding cassette detachably attached to the image forming portion, which stores sheets;
• a feeding portion which feeds a sheet stored in a sheet feeding cassette;
• a pair of lateral-end regulating portions which is provided in the cassette to regulate a lateral-end position of the sheet in a width direction orthogonal to a sheet feeding direction;
• a regulating portion which is projected from an abutting surface of each of the pair of lateral-end regulating portions, the abutting surface abutting on a lateral end of the sheet, the regulating portion regulating climbing over the pair of lateral-end regulating portions of the sheet when the sheet is fed;
• and
• an upper regulating portion which projects from an inner wall surface of an attaching space, in which the sheet feeding cassette of the apparatus body is attached, and regulates the sheet when the sheet climbs over the regulating portion.

An image forming apparatus comprising:

• an image forming portion;
• and
• a sheet feeding apparatus which feeds a sheet to image forming portion, the sheet feeding apparatus including:
• a sheet feeding cassette detachably attached to the image forming portion, which stores sheets;
• a feeding portion which feeds a sheet stored in a sheet feeding cassette;
• a pair of lateral-end regulating portions which is provided in the cassette to regulate a lateral-end position of the sheet in a width direction orthogonal to a sheet feeding direction;
• a regulating portion which is projected to a position higher than an upper surface of the stacked sheet in an abutting surface of each of the pair of lateral-end regulating portions, the abutting surface abutting on a lateral end of the sheet;
• and
• an upper regulating portion which is projected onto the sheet feeding cassette side at a position higher than the regulating portion in an inner wall surface of an attaching space, in which the sheet feeding cassette of the apparatus body is attached.