WATERPROOF STRUCTURE OF MOTOR

摘要

PROBLEM TO BE SOLVED: To provide a waterproof structure for a motor in a bad environment in which high pressure water intrudes. SOLUTION: The waterproof structure 1 of the motor 2 is configured by providing a second member 3 and a third member 4 in the direction of extension of the output shaft 2a of the motor 2 in this order. The second member surrounds a bearing of the output shaft 2a and allows the penetration of the output shaft 2a. The third member surrounds the motor 2 and the second member 3 and allows the penetration of the output shaft 2a. The waterproof structure is provided with an annular first member 5 disposed and fixed on the outer surface of the output shaft 2a so that it is positioned between the second member 3 and the third member 4. The outside diameter of the first member is larger than the diameter of the opening in the second member 3 and the diameter of the opening in the third member 4. COPYRIGHT: (C)2011,JPO&INPIT