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US 4,284,271 AGranted
Hexagonal jogging platform
OwnerJohn E. Pettit, Thomas L. Pettitinventors
Life of this patent
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Abstract
A hexagonal jogging platform having a tubular support frame with rounded corners, detachable, tubular support legs at each corner and a fabric platform attached to the tubular frame by novel coil springs having hooked ends bent from the axial center of the spring to prolong spring life. The legs are each rubber tipped with an insert disc or washer in the tip to prevent the leg from cutting through the tip. Each leg is bored to receive a tightening tool.
Claims1
A hexagonal jogging platform comprising:
- a generally hexagonally shaped, horizontally disposed frame;
- a flat, hexagonally shaped bed of flexible material disposed concentrically within said frame and having margins thereabout spaced from said frame;
- a series of spring means under tension interconnecting said bed margins and frame along the six sides thereof, respectively;
- leg support means depending from said frame at the six angles thereof;
- and hexagonally shaped pad means overlying and covering said spring means between said frame and bed margins;
- said frame being shaped to have external, rounded corners thereon at each of the six angles thereof and being of integral, one-piece construction;
- said series of spring means comprising six sets of six equispaced coil springs, each of said coil springs having integral hooked attaching ends thereon, each hooked end being bent from said coil spring at a point coincident with a central axis defined centrally through the coil of said coil spring whereby load is applied to said coil spring evenly and centrally therealong to prolong spring life;
- each of said support leg means comprising a tubular leg, means threadably detachably interconnecting said frame and leg, means defining a lateral bore through said leg for matingly receiving a hand held tool for rotating said leg, a protective tip fitted onto and over a lower end of said leg, and a flat circular insert within said tip having an external diameter the same as that of said leg and retained against said leg lower end solely by said tip, said insert preventing damage to said tip due to a force applied by said leg lower end therewithin.
5 more elements
Dependencies are inferred from the claim text.