Document conveying device capable of preventing document from being fed out when pickup roller is tilted, and image forming apparatus

A document conveying device comprising:

• a document placement portion on which a document is placed;
• a pickup roller configured to come into contact with an upper surface of the document placed on the document placement portion and pick up the document;
• a sheet feed roller that is provided on a downstream side of the pickup roller in a feeding direction in which the pickup roller feeds the document, and configured to convey the document;
• a roller holder configured to rotatably support the pickup roller and provided so as to be rotatable about a rotation shaft of the sheet feed roller between a contact position where the pickup roller comes in contact with the document and a separated position where the pickup roller is separated from the document;
• a document guide portion configured to come in contact with a lower surface of the document farther on the downstream side in the feeding direction than the sheet feed roller, and guide the document;
• a cover portion provided to rotatably support the sheet feed roller and to be rotatable about a shaft that is farther on the downstream side of the sheet feed roller in the feeding direction between a closed position that covers the document guide portion and an open position that externally exposes the document guide portion;
• a pair of wall portions that face each other in an axial direction of the rotation shaft with the cover portion sandwiched therebetween;
• a hook portion provided at each of a first end portion and a second end portion of the cover portion in the axial direction so as to be capable of advancing and retracting along the axial direction, the hook portion coming in contact with an upper surface portion of the wall portion when the cover portion is rotated to the closed position so as to retract toward the cover portion side and engage with the upper surface portion;
• a motor configured to rotate the pickup roller and the sheet feed roller;
• a gear provided at the first end portion, the gear configured to form a transmission path for a rotational driving force from the motor to the sheet feed roller and the pickup roller in a case in which the hook portion of the first end portion engages with the upper surface portion of the wall portion;
• and
• a linking portion provided on the cover portion, and configured to rotate the roller holder in conjunction with the advancing and retracting of the hook portion of the second end portion.