| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of effectively preventing water and dust from entering with a small number of components.SOLUTION: A device 21 is inserted into an opening 11a of a chassis 11. A nut 30 is fastened on the device 21. A packing member 45 is disposed so as to straddle the chassis 11 and the nut 30. An O-ring 41 is positioned between the device 21 and the nut 30, and an O-ring 42 is positioned between the nut 30 and the chassis 11. When the O-rings 41 and 42 are each viewed in a circular cross section obtained by cutting the O-rings 41 and 42 in a plane parallel to the movement direction of the nut 30 when the nut 30 is rotated and fastened on the device 21, a first apex is pressed against a surface in a direction orthogonal to the movement direction, and a position shifted from a second apex facing the first apex is pressed against surfaces 12 and 32 inclined with respect to the movement direction. |
