Supplemental seat for vehicles

Claim 1

IN A SUPPORT FOR A SEAT OR THE LIKE, TWO RIGID, HINGEDLY INTERCONNECTED PEDESTAL SECTIONS INCLUDING A LOWER SECTION, AN UPPER SECTION, MEANS PIVOTALLY CONNECTING THE UPPER SECTION TO THE LOWER SECTION FOR SWINGING MOVEMENT ABOUT A SUBSTANTIALLY HORIZONTAL AXIS, AND MEANS FOR LIMITING DOWNWARD SWINGING MOVEMENT OF THE UPPER SECTION WITH RESPECT TO THE LOWER SECTION, COMPRISING A PROP, A FULCRUM PORTION PIVOTALLY CONNECTING ONE END OF SAID PROP TO ONE OF SAID SECTIONS, THE OTHER END OF SAID PROP BEING INDEPENDENTLY SWINGABLE ABOUT SAID FULCRUM PORTION TOWARD AND FROM THE OTHER OF SAID SECTIONS AND BEING SEPARABLY ENGAGEABLE, IN A DIRECTION LONGITUDINAL WITH RESPECT TO THE PROP, WITH AN ABUTMENT PORTION CARRIED BY SAID OTHER SECTION, MEANS YIELDABLY URGING SAID PROP IN AN ANGULAR DIRECTION TOWARD SAID OTHER SECTION ABOUT SAID FULCRUM PORTION, THE PEDESTAL SECTION WITH WHICH THE PROP IS SEPARABLY ENGAGEABLE BEING PROVIDED WITH A LONGITUDINAL SLOT EXTENDING IN A DIRECTION PERPENDICULAR TO THE FIRST-MENTIONED AXIS, THE ABUTMENT PORTION BEING LOCATED IN SAID SLOT, SAID OTHER END OF THE PROP BEING SWINGABLE IN A PATH IN WHICH IT IS GUIDED BY SAID FULCRUM PORTION TO CARRY SAID OTHER END OF THE PROP INTO AND OUT OF THE SLOT AND INTO AND OUT OF ENGAGEMENT WITH THE ABUTMENT PORTION, GUIDE PORTIONS LIMITING THE EXTENT TO WHICH SAID OTHER END OF THE PROP EXTENDS INTO THE SLOT AND SLIDABLY GUIDING SAID OTHER END INTO ENGAGEMENT WITH THE ABUTMENT PORTION, THE PEDESTAL SECTION WITH WHICH THE PROP IS SEPARABLY ENGAGEABLE BEING OF RECTANGULAR CROSS SECTION, SAID PROP HAVING A PAIR OF TERMINAL ABUTMENTS SPACED APART A DISTANCE SLIGHTLY EXCEEDING THE WIDTH OF SUCH PEDESTAL SECTION AND ADAPTED TO OVERENGAGE OPPOSITE SIDES THEREOF AND TO ENGAGE SAID PREVIOUSLY MENTIONED ABUTMENT PORTION.