Quick release joints and structures incorporating same

A quick release joint ( 10 ) for interconnecting structural modules such as table or shelf units ( 54 ) in stacked configuration comprises a ball and socket type joint constructed and/or arranged to provide structural integrity in the assembled condition of the joint . In one embodiment abutment surfaces ( 46, 48 ) on the ends of the ball and socket joint elements make face-to-face contact and thereby hold the joint in a fixed configuration . In another embodiment , three or more joints at the corners of a triangle provide structural integrity . In a further version , abutment surfaces on the structures joined themselves prevent pivotal movement of the joint. In all cases the joints are assembled merely by compression and disconnected by application of tension.