Patent ID: 9272727
Filing Date: 2016-03-01
CPC Classification: B62D,Y10T

Claim Text:
1. A steering system comprising: a housing; a rack shaft extending in an axial direction so as to pass through the housing and including a first rack and a second rack on an outer circumference of the rack shaft so that the first rack and the second rack are separated from each other in the axial direction, the first rack and the second rack having respective helical teeth inclined toward a same direction relative to the axial direction; a first pinion shaft including a first pinion that has helical teeth and meshes with the first rack; a second pinion shaft including a second pinion that has helical teeth and meshes with the second rack, the first pinion shaft and the second pinion shaft being disposed on a same side of the rack shaft relative to a plane that extends along a central axis of the rack shaft, and a central axis of the second pinion shaft being parallel to a central axis of the first pinion shaft; and a rack bush disposed between the first pinion shafts shaft and the second pinion shaft in the axial direction of the rack shaft, the rack bush further being disposed closer to the first pinion shaft than a central position defined between the first pinion shaft and the second pinion shaft in the axial direction of the rack shaft, the rack bush being held by the housing so as to support the rack shaft slidably in the axial direction, and the rack bush being configured to limit a movement of the rack shaft in a direction parallel to both the central axis of the first pinion shafts shaft and the central axis of the second pinion shaft.