| 摘要 |
<p>AXIAL POSITION LOCK FOR TELESCOPING STEERING COLUMN A telescoping steering shaft includes a first shaft (16) having a polygonal-shaped bore (18) receiving for reciprocation therein a polygonal-shaped second shaft (12) having a tapered end (13). The polygonal-shaped second shaft (12) has a through axial opening (14) receiving a connecting rod (20) therein, the rod having a nut-shaped end (26) located adjacent the tapered end (13) of the second shaft (12) and the other end (15) being threaded to receive a lever (24) thereon. A collet nut (31) is mounted on the rod (20) adjacent the nut-shaped end (26) and has a plurality of axially extending projections (36) each including at least one surface (37 or 38) disposed parallel to an adjacent surface of the polygonal bore (18) and an interior axially inclined surface (35) disposed adjacent the tapered end (13). Rotation of the lever (24) about the rod (20) axially displaces the rod toward the lever which causes the inclined surfaces (35) of the projections (36) to engage the tapered end (13) and bias the projections (36) outwardly into engagement with the adjacent parallel surfaces of the bore (18), thereby eliminating torsional lash and axial movement between the shafts (12, 16).</p> |
