Collapsible enclosure apparatus

A door and gate assembly for a longitudinally collapsible and extendible enclosure apparatus for covering at least part of an open bed of a vehicle, the open bed of the vehicle having laterally spaced apart side walls at least partially circumscribing the open bed and at least a pair of wheel wells therein adjacent the opposite side walls, an end portion of the enclosure apparatus having an opening therein and being longitudinally movable relative to the open bed as the apparatus is longitudinally collapsed and extended, the end portion being selectively positionable at various longitudinal locations on the open bed, said door and gate assembly comprising:

• a gate frame assembly selectively and removably securable to the vehicle generally at a number of said longitudinal locations other than between the wheel wells in the open bed independently of the position of the end portion of the enclosure apparatus, said gate frame assembly including at least a pair of laterally spaced apart gate frame side members, each of said side members being positionable generally adjacent one of the side walls, and selectively operable adjustment means for forcibly urging said side members away from one another into frictional and abutting engagement with the associated side walls such that said gate frame assembly is thereby removably secured to said vehicle at any of said number of longitudinal positions;
• a gate member positionable between the wheel wells and being removably and pivotally attachable to said gate frame assembly between said gate frame side members, said gate member further being pivotally movable relative to said gate frame assembly between open and closed gate positions when said gate member is attached to said gate frame assembly, said gate member being removably and pivotally attachable to said gate frame assembly between said side members for said pivotal relative movement at any of said number of longitudinal locations on the open bed independently of the position of the end portion of the enclosure apparatus;
• a door member pivotally connected to said end portion of the enclosure apparatus generally adjacent the opening therein and being longitudinally movable therewith, said door member being pivotally movable relative to the end portion at any of said various longitudinal locations between an open door position generally away from the end portion opening and a closed door position substantially covering at least part of the end portion opening, said door member further including door latching means thereon for selectively and releasably securing said door member to said gate member when said door member is closed and said door and gate members are positioned at substantially the same longitudinal location on the open bed of the vehicle;
• and
• attachment means for removably and selectively attaching said gate member to said door member independently of said gate frame assembly for pivotal movement with said door member relative to the end portion of the enclosure apparatus at any of said various longitudinal locations on the open bed.