Patent attributes
A supplemental passive safety apparatus is provided which benefits known technology for detecting traffic emergencies. The apparatus may contain a movable rectangular frustum which interacts with rigid crossbars to control middle pivot joints responsible for adjusting location of horizontal support bottom panels with a cushion. An alternative apparatus may contain a rope traveling through a double flanged wheel mounting to a pneumatic cylinder instead of a rigid crossbar interacting with a movable rectangular frustum. Simultaneously with an opening of an automatic valve, compressed air is transmitted from a cartridge to a pneumatic cylinder causing a piston with rod to move toward a front crossbar. The rigid crossbar in one version or rope in an alternative version release a pivot joint controlling location of horizontal support bottom seat panels with cushion.