SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS

摘要

A sheet feeding apparatus capable of lifting a feed roller at low cost without increasing size thereof and an image forming apparatus including the same are proposed. A sheet fed from a rotary feed member is conveyed by a rotary conveyance member while being separated one by one by a rotary separation member being in contact with the rotary conveyance member. The rotary feed member is moved between a standby position above the sheet and an abutment position where the rotary feed member abuts with the sheet by a lifting portion. The lifting portion includes an actuation member moving a holding portion up and down and a drive member driving the actuation member. The actuation member is disposed on a second shaft, which is configured to rotate the rotary separation member.

主权项

1. A sheet feeding apparatus comprising:
a sheet supporting portion configured to support a sheet; a rotary feed member configured to feed the sheet supported on the sheet supporting portion; a rotary conveyance member configured to convey the sheet fed from the rotary feed member; a rotary separation member being in pressure contact with the rotary conveyance member and configured to separate the sheet with the rotary conveyance member; a first shaft configured to rotate the rotary conveyance member; a second shaft configured to rotate the rotary separation member; a holding portion rotatably holding the rotary feed member and configured to move up and down; a lifting portion configured to move the holding portion so as to move the rotary feed member to a standby position located above the sheet and an abutment position on which the rotary feed member abuts with the sheet supported on the sheet supporting portion; and a drive unit configured to drive the lifting portion, wherein the lifting portion comprises a drive member driven by the drive unit and an actuation member moving the holding portion up and down by being driven by the drive member, and wherein the actuation member is disposed on the second shaft.