Collapsible truck cover

Claim 1

A COLLAPSIBLE SEAT STRUCTURE FOR A TRUCK LOAD BED INCLUDING SIDES AND A BOTTOM, MOUNTING MEANS ADAPTED TO BE RECEIVED BETWEEN AND SUPPORTED ADJACENT SAID OPPOSITE SIDES, A PAIR OF ELONGATED OPPOSITE SIDE SEAT-FORMING MEMBERS EACH PIVOTALLY SECURED ALONG ONE LONGITUDINAL EDGE THEREOF TO THE CORRESPONDING MOUNTING MEANS FOR SWINGING MOVEMENT BETWEEN A FIRST GENERALLY HORIZONTALLY DISPOSED POSITION AND A SECOND UPSTANDING POSITION CLOSELY ADJACENT THE INNER SURFACES OF THE CORRESPONDING SIDE OF SAID LOAD BED, SAID SEAT-FORMING MEMBERS EACH INCLUDING ELONGATED LEG MEANS MOUNTED THEREON FOR MOVEMENT BETWEEN A RETRACTED POSITION CLOSELY UNDERLYING AND GENERALLY PARALLELING THE CORRESPONDING SEAT-FORMING MEMBER AND AN EXTENDED POSITION DEPENDING DOWNWARDLY FROM THE CORRESPONDING SEAT-FORMING MEMBER WHEN THE LATTER IS IN ITS FIRST POSITION AND ADAPTED TO ENGAGE SAID LOAD BED BOTTOM FOR SUPPORT OF THE FREE EDGE PORTIONS OF SAID SEATFORMING MEMBERS THEREFROM, SAID MOUNTING MEANS COMPRISING A PAIR OF UPSTANDING AND HORIZONTALLY ELONGATED GENERALLY PARALLEL FRAME ASSEMBLIES ADAPTED TO BE POSITIONED WITHIN SAID LOAD BED ADJACENT SAID SIDE WALLS AND HAVING THEIR LOWER MARGINAL EDGE PORTIONS SUPPORTED FROM SAID BOTTOM, THE LOWER ENDS OF SAID LEG MEANS, WHEN EXTENDED AND WHEN SAID SEAT FORMING MEMBERS ARE IN THEIR HORIZONTAL POSITIONS, BEING GENERALLY HORIZONTALLY ALIGNED WITH THE LOWER MARGINAL PORTIONS OF SAID FRAME ASSEMBLIES FOR ENGAGEMENT WITH THE SUPPORT FROM SAID BOTTOM.