| 主权项 |
1. A rack-and-pinion steering gear unit comprising a gear housing, a pinion shaft, a rack shaft, and a cylindrical portion,
wherein the pinion shaft comprises pinion teeth on an outer peripheral surface of an axially intermediate portion of the pinion shaft and is rotatably supported inside the gear housing, wherein the rack shaft is configured as a hollow pipe as a whole by bending an elongated metal plate such that widthwise end edges of the metal plate are butted to each other, the rack shaft comprising rack teeth on a front face of the rack shaft partially in an axial direction, the rack shaft being disposed in a skew manner with respect to the pinion shaft and supported inside the gear housing so as to be displaceable in the axial direction in a state in which the rack teeth are engaged with the pinion teeth, and wherein the cylindrical portion is fitted on each end portion of the rack shaft. |
