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    • 4. 发明专利
    • BEARING DEVICE FOR STEERING FORK STEM
    • JPH08226437A
    • 1996-09-03
    • JP5816995
    • 1995-02-22
    • OILES INDUSTRY CO LTD
    • YAMADA KENJIYAMAGUCHI TAKESHI
    • B62K21/06F16C17/10
    • PURPOSE: To obviate the degradation of an operating feeling or defective operation of a steering wheel caused by pressure indentation and in addition simplify disassembly and assembly by disposing a synthetic resin washer in a washer receiving annular space such that the upper and lower annular surfaces of the washer are made respectively slidable surface contact with upper and lower cases. CONSTITUTION: Silicone series grease put in a groove is attached between a lower cup 112 and an annular member 51 corresponding to a lower ball pusher, and the upper end 52 of the lower cup 112 is fitted to the inner peripheral surface of a head lug 104 to support the annular member 51 fixed to the steering fork stem 101 side. When the steering fork stem 101 is rotated by steering operation, a lower case 6 is rotated through the annular member 51 relative to an upper case 3 fixed to the head lug 104 so that smooth slides are generated either between the annular upper surface of a washer 9 and the lower annular surface of the upper case 3 or between the lower annular surface of the washer 9 and the upper annular surface of the lower case 6, and the fork stem 101 is smoothly rotated.