Patent ID: 6902033

Claim:
An observation system removable mountable on top of a pickup truck cargo bed without permanently altering the truck bed comprising; a foldable chair having a horizontal seat and a vertical back, said horizontal seat having frame members on each side; a tower including a vertical A-frame ladder having a top and bottom, said chair horizontal seat frame mounting members connected to the top of said A-frame ladder; a tower support framework including first and second parallel L-shaped bars, each L-shaped bar having a forward end and a rear end; said tower support framework including front and rear parallel elongated tubular channel bars, each bar having a rectangular cross-section and a plurality of positioning apertures laterally spaced at each end of the bars; an upstanding apertured plate member attached to each end of the L-shaped bars; threaded fasteners connecting the channel bars to said L-shaped bars through an a respective aperture in each upstanding plate member and a selected on of said plurality of laterally spaced positioning apertures in the channel bars, each channel bar having a pair of spaced U-shaped channel clevis secured thereon; said first and second L-shaped bar being parallel and adjustable in separation by selection of the threaded fasteners in one of the positioning apertures to allow the support framework to be fitted to a variety of truck beds of different widths, with the first and second L-shaped bars being positioned to be against the truck bed walls; said tower A-frame ladder including a first vertical, rectangular frame having a plurality of horizontal ladder rungs spaced apart vertically and a second rectangular frame substantially the same size as the first rectangular frame, said first rectangular frame and said second rectangular frame each having upper ends pivotally connected to said chair horizontal seat frame mounting members, and the first and second rectangular frame each having bottoms, the bottom of said first rectangular frame connected to the channel front bar by clevis pins through the bottom and the pair of U-shaped channel clevis on the front channel bar, and the bottom of said second rectangular frame connected to the rear channel bar by clevis pins through the bottom of the second rectangular frame and the pair of U-shaped channel clevis on the rear channel bar, and first and second screw clamps for connecting said first L-shaped bar and said second L-shaped bar to a pickup truck cargo bed side walls; and said tower can be manually altered from a vertically raised position for observation to a collapsed, stored position with said second rectangular frame member positioned parallel against said first rectangular frame member.