Patent ID: 8607449

Claim:
A method of waterproofing a crimping part of a crimp terminal where a wire is crimped, the method comprising: forming a waterproofing structure sealing a crimping region containing the crimping part with an adhesive tape, the adhesive tape having waterproofing performance and having a thickness no more than a predetermined value, wherein a material of the crimp terminal and a material of the core wire are different from each other, the material of the crimp terminal is copper family material, and the material of the core wire is aluminum, the forming includes: covering a portion of the exposed core wire part and a circumferential face of a distal end portion of the core wire with a secondary adhesive tape, the distal end portion projecting on a neck part of the crimp terminal; crimping the portion of the core wire to the crimp terminal after the covering, the exposed core wired part being covered with the secondary adhesive tape; and covering the crimping region including the secondary adhesive tape with the adhesive tape after the crimping.