Abstract: A structure comprises a ridge beam, a plurality of truss beams, and a plurality of legs. The ridge beam comprises a first end and a second end. Each end comprises at least one tab member that projects in a direction that is substantially parallel to a plane of the ridge beam. Each truss beam comprises first and second ends that each comprises a plurality of apertures and at least one tab member that projects in a direction that is substantially parallel to a plane of the truss beam. Tab members of two truss beams are respectively capable of engaging a corresponding aperture of the other truss beam to form a peak section. At least one aperture of each of the two truss beams is capable of being aligned receiving a corresponding tab member of the ridge beam. Each respective leg engages the second end of a corresponding truss beam.

Abstract: A spring arrangement for a trampoline includes a rebounding surface, a frame structure having a top portion and a bottom portion, and a plurality of spring members that are mechanically coupled between the rebounding surface and the frame structure. A first group of spring members are mechanically coupled to the top portion of the frame structure and a second group of spring members are mechanically coupled to the bottom portion of the frame structure. In one illustrative embodiment, each spring member of the second group of spring members has a frame hook member that is mechanically coupled to the bottom portion of the frame structure and a bed hook member that includes an end portion that is configured to be within a projection of a body of the spring member and is coupled to the rebounding surface.

Abstract: A recreational structure, such as a trampoline frame, can be quickly and reliably assembled using a coupling member generally having a “T” configuration. A first arm member and a second arm member are disposed in an opposite relationship with each other. The first and second arm members each receive one end of a horizontal frame member of the recreational structure. The third arm member includes flange members that receive one end of a vertical frame member of the recreational structure and one end of a vertical pole member of, for example, a safety enclosure.