Sheet Feeding Device and Image Scanning Device Employing the Same

An image scanning device, comprising

• a sheet mounting part having a sheet mounting surface on which one or more sheets to be scanned are mounted;
• a sheet feeding unit defining a sheet feed path having an inlet and outlet, the sheet feeding unit being configured to introduce the sheet mounted on the sheet mounting part from the inlet, feed the sheet along the feed path, and discharge the sheet from the outlet on the sheet mounting part,
• wherein the sheet mounting part comprises a first member and a second member arranged next to each other, the first member being arranged at a position opposite to the inlet and the outlet with respect to the second member, a range starting from the first member to the second member passing the border therebetween being defined as the sheet mounting surface,
• wherein one of the first member and the second member is configured such that an end portion is formed with at least one protruded portion which is protruded toward the other of the first member and the second member, an end portion of the other of the first member and the second member being formed with at least one slit in which the at least one protruded portion is inserted, an upper surface of the other of the first member and the second member being located at a higher position than an upper surface of the one of the first member and the second member at an end position of the at least one protruded portion so that the upper surface of the other of the first member and the second member serving as a part of the sheet mounting surface, the upper surface of the one of the first member and the second member being located at a higher position than the upper surface of the other of the first member and the second member at an end position of the at least one slit so that the upper surface of the one of the first member and the second member serves as a part of the sheet mounting surface.