Waterproof structure of cushion and folding portable electronic devices of folding portable electronic devices

摘要

There is disclosed a cushion of a folding portable electronic device which can prevent the increase of manufacturing cost, prevent the permeation of water into cases and prevent the cases from being damaged at a folding operation. A cushion 107 includes a projecting part 107a which is disposed in one case 110 and projects from one surface to come in contact with the other case in a closed state; and a body part 107b having a side surface sandwiched between an outer surface of a frame constituent member 101 which constitutes a frame of the one surface and an inner surface of a back surface constituent member 102 to cover a back surface which is the surface on a side opposite to the one surface of the one case, whereby the body part closely comes in contact therewith.