Abstract: Embodiments of a playground device that includes a net lattice are disclosed. The net lattice is attached either directly or indirectly to the playground device. First and second segments of a net rope are part of the net lattice and include a woven outer net rope layer that surrounds a woven inner net rope layer. A net clamp is also part of the net lattice. The first and second segments of the net rope run substantially parallel to one another through the net clamp. The net clamp secures the first segment of net rope to the second segment of net rope at the point at which they run substantially parallel to one another.

Abstract: A playground apparatus is disclosed which includes four upright posts secured in the ground in a square configuration. Playground apparatus further includes four curved beam members formed from substantially rigid material, each of which is pivotally connected at its midpoint. The adjacent ends of the beams are interconnected by a resilient spring assembly, and the assembled beams define a ring-like support surface upon which children can stand and jump, producing undulating and resilient motion.