Patent ID: 7077281

Claim:
A cover mounting structure of a waterproof box comprising a container body and a cover to be mounted on an opening of said container body, said container body including side walls in a double-wall structure each of which is composed of an inner wall and an outer wall, said inner wall being projected longer than said outer wall, said cover including attached walls, each of which is provided with an outer groove defined between an outer wall portion and a middle wall portion and an inner groove defined between said middle wall portion and an inner wall portion, wherein said cover is mounted to said container body by respectively inserting said inner wall and said outer wall of said container body into said inner groove and said outer groove of said cover, wherein, on said middle wall portion of said cover which is in contact with an outer face of said inner wall of said container body which is projected longer than said outer wall, there is provided a guide piece for guiding said opposed middle wall portion into a gap between said outer wall and said inner wall, wherein said guide piece is provided at a distal end portion of its outer face with an inclined area which is gradually inclined inwardly toward said distal end portion, wherein said guide piece terminates in a free distal end and the inclined area is located below a top of the outer wall portion.