| 摘要 |
PROBLEM TO BE SOLVED: To provide an integral type power steering device capable of eliminating a lateral torque difference.SOLUTION: In the power steering device of the present invention, assuming a distance between a meshing point of a rack tooth 71 and a sector gear 8 and a rotational center O1 of the sector gear 8 as a pitch circle radius, the pitch circle radii r(large) and R(large) when a piston moves in the direction for increasing the volume of one pressure chamber and the pitch circle radii r(small) and R (small) when the piston moves in the direction for reducing the volume of the one pressure chamber, are mutually formed in a different radius so as to reduce a difference between a size of output torque of the sector gear 8 to steering operation to one side in the rotational direction of a steering wheel and a size of the output torque to the steering operation to the other side in the rotational direction of the steering wheel. |
