Crash active headrest for use in vehicle seat, has actuator to mechanically destruct holding rope, which indirectly holds spring or drive, and/or latch that indirectly opens as pneumatic individual actuator and holds spring or drive

摘要

The headrest has a double leg spring or a drive to drive a four-joint in a crash or release case. An actuator (47) is operated irreversibly in a crash or release case to release the spring or drive. The actuator mechanically destructs a holding rope (45), which indirectly holds the spring or drive, and/or a latch (43) that indirectly opens as a pneumatically expendable actuator and indirectly holds the spring or drive.