| 摘要 |
A collapsible steering column assembly comprising a telescopic housing comprising an inner housing part 20 and a outer housing part 10 which surrounds the inner housing part along part of its length, the inner housing part being arranged so that it can slide into the outer housing part. A steering column shaft 60 passes through the inner housing part and is provided with a first bearing assembly 40 and a second bearing assembly 50. The first bearing assembly is located between the outer tube and the shaft permitting the shaft to rotate within the outer housing. The second bearing assembly is located between the inner tube and the shaft and comprises an inner and outer race whereby one of the inner or outer races is fixed in position relative to the shaft or tube with which it cooperates so as to permit the inner tube to collapse into the outer tube. A plurality of bearing elements is additionally located between the inner and outer races which permit the shaft to rotate within the inner housing. A spacer 70 may be provided spacing the second bearing assembly from the shaft thus providing a sliding engagement. |
