| 摘要 |
PROBLEM TO BE SOLVED: To provide the degree of freedom corresponding to the shaft diameter of a driven shaft with the area of the support surface, with which the face part of a holding member makes slide contact, of a turbine hub. SOLUTION: A plurality of insertion groove parts 24 opened in a torque converted body are formed in a turbine hub 7 to support a turbine impeller 6. A rivet insertion hole 25 is formed in the rivet insertion groove part 24 and the whole area, except at least the rivet insertion groove part 24, of a face part forms a washer support surface. The turbine impeller 6 is fixed at the turbine hub 7 by a rivet 8 inserted in the rivet insertion hole 25, the head part 8A of the rivet 8 is contained in the rivet insertion groove part 24, and a washer support surface is brought into slide contact with the stator support washer 21 of a one-way clutch 10. An oil hole formed in the stator support washer 21 is communicated with the rivet insertion groove part 24 to form the lubrication passage of the one-way clutch 10.
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