Sheet conveyance apparatus and image forming apparatus

A sheet conveyance apparatus comprising:

• a conveyance unit configured to convey a sheet through a conveyance path;
• a first moving member including a first projection portion, wherein the first moving member is movable between a first projection position where the first projection portion projects to the conveyance path and a first retraction position where the first projection portion is retracted from the first projection position, and the first moving member is configured to be moved from the first projection position to the first retraction position when the first projection portion comes into contact with the sheet;
• a second moving member including a second projection portion and configured to move relative to the first moving member, wherein the second moving member is movable between a second projection position where the second projection portion projects to the conveyance path and a second retraction position where the second projection portion is retracted from the second projection position, and the second moving member is configured to be moved from the second retraction position to the second projection position when the first moving member moves from the first projection position to the first retraction position;
• and
• a detection unit configured to detect a movement of the second moving member,
• wherein, in a case where the second projection portion is pushed by the sheet, the second moving member is moved from the second projection position to the second retraction position in a state where the first moving member is located at the first retraction position.