| 摘要 |
A vehicle head restraint assembly includes a support frame, a stay, and a rack and pinion assembly. The support frame supports a head restraint cushion. The stay connects with a vehicle seat back. The rack and pinion assembly connects with the support frame and the stay. The rack and pinion assembly is configured to allow for selective movement of the support frame with respect to the stay along a translational axis. The rack and pinion assembly includes a pinion, a rack, and a locking cage. The pinion includes a plurality of pinion teeth. The rack includes a plurality of rack teeth. The rack teeth engage the pinion teeth when the support frame moves in the translational axis with respect to the stay. The locking cage selectively engages the rack and is spaced from the rack teeth. The locking cage includes locking cage teeth.
|
