Sheet feeding device, feeding tray, and image forming apparatus

A sheet feeding device comprising:

• a device body including a stopper portion;
• and
• a feeding tray detachably mounted to the device body, the feeding tray including:
• a stopper including a stopped portion to be stopped by the stopper portion, the stopper movable between a stop position at which the stopped portion is stopped by the stopper portion and a release position at which the stopped portion is released from the stopper portion;
• a lock assembly to prevent drawing of the feeding tray from the device body;
• and
• an operating member to rotate from an initial state by a predetermined angle to move the stopped portion from the stop position to the release position,
• the lock assembly to restrict rotation of the operating member when the lock assembly is locked,
• the stopped portion of the stopper movable from the stop position to the release position with an operation of mounting the feeding tray, which is drawn from the device body, to a mount position of the device body without rotation of the operating member.