Backpack frame convertible to a chair and conversion assembly therefor

A backpack frame of the type including an upper U-shaped frame extension is convertible to a chair through the use of a lightweight conversion assembly including a pair of seat tubes demountably attached to the pack frame to divide the same into chair back and rear leg portions. The seat tubes carry a simple sling-type seat of canvas or the like and the opposite ends of the seat tubes are adapted to receive the free ends of the U-shaped frame extension which is removed from the backpack frame to provide the front legs of the chair. The entire conversion assembly is very light and occupies little space and can, therefore, be readily carried in the usual backpack attached to and used with the frame.