Abstract: The present invention is a folding structure having an improved locking mechanism. In one embodiment, the folding structure comprises a plurality of legs and a hinge mechanism, the hinge mechanism comprising a plug hinge removably connected to a slider hinge between a first position at which the structure is substantially collapsed and a second position at which the structure is substantially open and the plug hinge is locked to the slider hinge. The hinge mechanism may further comprise a release cap engaged with the slider hinge and having a pair of buttons. Depression of the buttons unlocks or releases the plug hinge from the slider hinge, allowing the folding structure to be collapsed.

Abstract: The present invention is directed to an air blower unit for inflating an air permeable body. The air permeable body has an inlet sleeve with a distal end and a light unit located within the body. The air blower unit comprises an exhaust port engageable with the distal end of the inlet sleeve for delivering air to the body thru the inlet sleeve. The air blower unit further comprises an electrical cord passing into and out of the exhaust port and thru the inlet sleeve of the body for connection with a light unit. The air blower unit may further comprise a protective cover to enclose the electrical cord as it passes into and within the exhaust port.