Abstract: An adjustable head restraint assembly is provided with a support rod adapted to be mounted proximate to a vehicle seat back. A primary frame is supported on the support rod. A secondary frame is mounted to the primary frame for translation in a fore and aft direction. A locking arm is pivotally connected to one of the frames for engagement with a series of notches formed in the other. A biasing member cooperates with a locking arm for biasing the locking arm into a locked position. An actuator pivots the locking arm out of engagement from the series of notches for unlocking the locking arm and permitting adjustment of the adjustable head restraint in the fore and aft direction. The primary frame translates along the support rod with a locking arm for engagement with notches in the support rod for movement by the actuator for adjustment in an upright direction.

Abstract: An adjustable head restraint assembly is provided with a support rod adapted to be mounted proximate to a vehicle seat back. A primary frame is supported on the support rod. A secondary frame is mounted to the primary frame for translation in a fore and aft direction. A locking arm is pivotally connected to one of the frames for engagement with a series of notches formed in the other. A biasing member cooperates with a locking arm for biasing the locking arm into a locked position. An actuator pivots the locking arm out of engagement from the series of notches for unlocking the locking arm and permitting adjustment of the adjustable head restraint in the fore and aft direction. The primary frame translates along the support rod with a locking arm for engagement with notches in the support rod for movement by the actuator for adjustment in an upright direction.