| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a thrust bearing for a motor, which structure can surely prevent the rattle in the direction of the thrust, and also can surely prevent the generation of noises. SOLUTION: In the structure of the thrust bearing for the motor 10, both ends of a rotary shaft 20 are rotatably supported by a pair of bearings 14, 19. An elastic member gripped by a pair of thrust washers is arranged between one bearing 14 and a stop ring 25 locked to the one end side of the rotary shaft. A thrust washer 27 is pushed against the other bearing 19 via a collar sleeve 26 arranged on the other end side of the rotary shaft by the elastic force of the elastic member. A pair of flat washers 30, 32 are brought into contact with the stop ring 25 and the bearing 14, respectively, and a curved R washer 34 is sandwiched by a pair of flat washers 30, 32. Engagement recesses are formed on the outer peripheral portion of the R washer 34. Engagement protrusions to be engaged with the engagement recesses of the R washer 34 are formed on the outer peripheral portion of one flat washer 30 to be brought into contact with the outer peripheral edge of the R washer 34. COPYRIGHT: (C)2007,JPO&INPIT
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