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US 3,937,463 AGranted
Congruent suspension twist swing
OwnerDonald R. Soissoninventor
Life of this patent
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OwnerDonald R. Soissoninventor
Estimating the term…
A swing for both arcuate and rotational motion has a disc platform for passengers and multiple, congruently attached support strands adapted for securing to a horizontal support member. The bight of a strand passes around the support member such that two free ends of the strand may pass through the disc to locks to adjustably secure the ends to the disc. The strand pairs are fixed to the horizontal support member at spaced positions on the member congruent with the position of the strands on the disc. The disc is provided with a peripheral rim having top and bottom walls. Extending through the walls are a plurality of spaced apart vertical apertures. The lower wall is provided with a depression placed adjacent each aperture. Extending across the depression and spaced from the bottom of the depression is a rigidly attached lock bar. The disc platform is swingedly attached to the support by passing each end of each strand pair through a vertical aperture and each end is then passed between the bottom of the depression and the lock bar and anchored at that point.
A swing to be supported from a horizontal support member for both arcuate and rotational motion and comprising a rider support disc, a peripheral rim on the disc, said rim having top and bottom walls, a plurality of substantially vertical apertures extending through said walls of said rim of said disc, a plurality of support strands, means for fixing the strands at spaced positions about the horizontal support member, a semi-spherical depression in said bottom wall of the disc adjacent each vertical aperture in said wall, a lock bar across the hollow defined by the semi-spherical depression, and a radially intruding boss on the disc containing said bar and said hollow, each semi-spherical depression and lock bar cooperating to adjustably secure each opposite end of a strand passing through a vertical aperture to said disc, the ends of said strands being congruently arranged with respect to the disc as the strands are arranged with respect to the horizontal support member.
Dependencies are inferred from the claim text.