Sheet feeding device and imaging forming apparatus provided with same

摘要

A sheet feeding device includes a sheet feeding unit and a feed unit. The sheet feeding unit includes a housing having a pair of wall portions. The feed unit includes a pickup roller and a sheet feed roller. The feed unit includes a holder, a shaft and a pair of bearing portions. The holder has a pair of side walls each having a bearing hole portion. The shaft extends between the pair of side walls. The pair of bearing portions are mounted in the bearing hole portions and rotatably supports the shaft. The housing includes a pair of shaft supporting portions provided on the pair of wall portions and capable of supporting the bearing portions. The feed unit is attached to the housing and the holder swings with the outer peripheral parts of the bearing portions, whereby the pickup roller is vertically movable.

主权项

1. A sheet feeding device, comprising:
a sheet feeding unit including a housing having a pair of wall portions; and a feed unit detachably attachable to the housing and including a pickup roller configured to feed a sheet and a sheet feed roller configured to further convey the sheet fed by the pickup roller; wherein: the feed unit includes:
a holder having a pair of side walls each having a bearing hole portion open on one end side thereon in a sheet conveying direction;a shaft extending between the pair of side walls and serving as a rotary shaft of the sheet feed roller; anda pair of bearing portions mounted in the bearing hole portions to project outwardly in an axial direction of the shaft from the side walls and configured to rotatably support the shaft; the housing includes a pair of shaft supporting portions provided on the pair of wall portions and capable of supporting outer peripheral parts of the bearing portions projecting from the side walls; and when the feed unit is attached to the housing, the pair of bearing portions are supported in the pair of shaft supporting portions and the holder swings with the outer peripheral parts of the bearing portions as a swing axis, whereby the pickup roller is vertically movable.