초록 ▼

A power steering apparatus includes a pair of projections formed on the input and the output side, respectively, and also includes a substantially C-shaped spring disposed in surrounding relationship with the input shaft so that the both projections are maintained in their neutral position. In the n

A power steering apparatus includes a pair of projections formed on the input and the output side, respectively, and also includes a substantially C-shaped spring disposed in surrounding relationship with the input shaft so that the both projections are maintained in their neutral position. In the neutral position, a circumferential clearance between the end faces of a notch formed in the spring and the projections is maintained substantially zero. The projection formed on the input side engages the lateral side of an inner race of a bearing which rotatably carries the input shaft, thereby preventing a withdrawal of the input shaft. Hydraulic fluid used in the control valve is utilized to define a hydraulic bearing between the input and the output shaft.

대표청구항 ▼

A power steering apparatus having an input portion and an output portion and comprising: an input shaft at said input portion for connection with a steering wheel; an output shaft at said output portion and disposed in coaxial relationship with the input shaft and adapted to be connected to a steera

A power steering apparatus having an input portion and an output portion and comprising: an input shaft at said input portion for connection with a steering wheel; an output shaft at said output portion and disposed in coaxial relationship with the input shaft and adapted to be connected to a steerable road wheel; a control valve for controlling the supply to or discharge from a power cylinder of hydraulic fluid in accordance with a relative angular displacement between the input and the output shafts; a pair of engaging elements disposed on said input and output portion, respectively, for integral rotation therewith; and a substantially C-shaped spring disposed around one of (1) said engaging element on the input portion and (2) said input shaft, the resilience of the spring serving to maintain said engaging elements in a given position, said substantially C-shaped spring has a notch formed therein, the cross-sectional area of said spring being gradually increased toward a point on its circumference located diametrically opposite the said notch, such that stresses produced therein are substantially uniform throughout.