Patent ID: 9061851
Filing Date: 2015-06-23
Classification: B65H,G03G

Abstract:
1. A sheet feeding device comprising: a sheet accommodating unit that accommodates sheets, and supported by an apparatus main body in an insertable and withdrawable manner in a direction orthogonal to a feeding direction of the sheets; a leading edge regulating unit provided fixedly to the sheet accommodating unit, configured to regulate a position on a downstream of the sheets to be accommodated in the feeding direction thereof; a trailing edge regulating unit provided in the sheet accommodating unit, configured to regulate a position on an upstream of the sheets to be accommodated in the feeding direction; a side edge regulating unit provided in the sheet accommodating unit, configured to regulate a position of the sheets to be accommodated in a direction orthogonal to the feeding direction thereof; and a locking mechanism to lock the sheet accommodating unit in a locking position in the apparatus main body including a spring which push out the sheet accommodating unit, a hook portion and protrusion portion which is engaged with the hook portion to lock the sheet accommodating unit in the apparatus main body against an elastic force of the spring; and a single insertion position limiting unit, the single insertion position limiting unit being provided only on a rear of the sheet accommodating unit in an inserting direction of the sheet accommodating unit and upstream from a center of gravity of the sheet accommodating unit in the sheet feeding direction, configured to be able to contact a frame on a rear of the apparatus main body in an inserting direction of the sheet accommodating unit to limit an insertion position of the sheet accommodating unit and a gap is formed between the single insertion position limiting unit and the frame on the rear of the apparatus main body when the locking mechanism locks the sheet accommodating unit in the locking position, wherein after the insertion position of the sheet accommodating unit is limited by the single insertion position limiting unit while insertion of the sheet accommodating unit, the sheet accommodating unit is moved to the locking position by the elastic force of the spring, wherein, in response to the sheet accommodating unit being inserted with an excessive force, the sheet accommodating unit rotates slightly about the single insertion position limiting unit, thus preventing damage to the side edge regulating unit and/or the trailing edge regulating unit.