A safety seat for land vehicles, aircraft or vessels, comprising a harness
for suspension from fixed points of a vehicle and for supporting a
vehicle occupant. Belt retractors are disposed at the fixed vehicle
points, and fabric supporting belts extend from the harness to the
retractors, which pretension the belts in a direction of retraction. A
manually operable switching device allows the belt retractors to be
switched into a free running state, a blocking state, or a positioning
state. The free running state permits free withdrawal of the belts in a
direction opposite to the pretension. The blocking state effects a
complete blocking of the belts in both the withdrawal and the retraction
directions. The positioning state effects blocking of the belts in only
the withdrawal direction.