Patent ID: 8902610

Claim:
An electronic device, comprising: a positioning hole formed in a predetermined position of a printed board; and a cover that has a cover claw fitted to the positioning hole and covers a principal surface of the printed board, wherein at least two positioning holes are formed in the vicinity of a first end surface of the printed board, at least one positioning hole is formed in the vicinity of a second end surface of the printed board, one of at least the two positioning holes formed in the vicinity of the first end surface is deviated by a predetermined dimension in parallel along a vertical center line with respect to the first end surface, at least two cover claws are formed in parallel with a first end surface of the cover, at least one cover claw is formed in a center position of the second end surface of the cover, at least the two cover claws are fitted to the corresponding positioning holes formed in the first end surface of the printed board, and the cover claw formed in the second end surface of the cover is fitted to the positioning hole formed in the vicinity of the second end surface of the printed board by twisting the cover, so that the cover is firmly secured to the printed board.