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    • 7. 发明专利
    • CONE CLUTCH AND DIFFERENTIAL GEARS THEREWITH
    • JPH09144770A
    • 1997-06-03
    • JP30294695
    • 1995-11-21
    • TOCHIGI FUJI SANGYO KK
    • YAMAZAKI SHINJI
    • F16D13/32F16H48/22F16H48/38F16H48/40F16H48/20
    • PROBLEM TO BE SOLVED: To improve clutch seizure resistance by providing a plurality of contact parts consisting of partial elliptic shape in the peripheral direction, and forming a non-contact part in the middle of it. SOLUTION: In a cone clutch serving as the differential limit mechanism of a differential device, right and left cone parts 17, 17 are provided, in a shaft right-angled cross-section, with two contact part 17a consisting of elliptic long- diameter shape in the peripheral direction, and its top part 17c comes into contact with a facing conical surface on differential case side. A small-diameter part 17b in the middle of respective contact parts 17a comes into no contact. The top part 17c of the cone part 17 has no edge part, and while the cone clutch is sliding, it is connected to the small-diameter part 17b smoothly, thus facilitating introduction of lubricating oil into the large-diameter part from the small-diameter part of the cone part 17. The cone part 17 is elliptic, therefore, the top part 17c comes into smooth slide contact. Lubricating oil is apt to enter the top part 17c easily, therefore, it is possible to provide good oil film formation and improve seizure resistance of the cone clutch.