Joint structure for metal plates

摘要

A joint structure provides a strong contact force between two metal plates that are joined together by the joint structure. A first metal plate is provided with a lug and an opening under the lug. An edge portion of a second metal plate is inserted under the lug and partially press molded with the lug, so as to be press-fitted into the opening in a state wherein the press-fitted portion is held between the opening and the lug. The press-fitted portion of the second metal plate has a cutoff edge portion which is cut off from the remaining portion of the plate, and a connected edge portion which is not cut off from but remains connected with the remaining portion. The cutoff edge portion contacts a corresponding edge of the opening in the first metal plate to ensure and maintain proper lateral registration of the two plates.