Gm Global Technolgoy Operations, Inc.

James A Smith

Paul W Alexander

Michael G Carpenter

Leigh A Berger

Dale Drew

Clayton J Hayes

Michael E Kilpinen

An active head restraint for supporting the head of an occupant, includes a shell, and an actuator disposed within the shell, wherein the actuator further includes a spring-biased bar linkage system pivotally coupled to the shell, a radial ratcheting sector coupled to the linkage system, a pawl selectively engaging the sector, and a solenoid drivenly coupled to the pawl, and configured, when activated, to cause the pawl to disengage the sector.

Active head restraint utilizing solenoid activation and bar linkage transmission

An active headrest for selectively supporting the head of an occupant, includes a shell, and an actuator disposed within the shell, including a bar linkage system drivenly coupled to the shell, so as to adjust the distance or engagement between the shell and head when displaced, and an active material element drivenly coupled to the system, so as to cause or enable the displacement of the system, and preferably further including a ratchet sector/pawl and latch cooperating to present plural achievable deployment positions.

Active material actuated headrest utilizing bar linkage deployment system

Growing community of inventors

Armada, MI, United States of America

James A Smith