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US 5,683,337 AGranted
Rotary exercise machine
OwnerMartin Zetocha, Jozef Zetochainventors
Life of this patent
Estimating the term…
Abstract
A new Rotary Exercise Machine for offering a more efficient and effective machine for exercising the deltoids, the pectorals, the external obliques, and the abdominus rectus, the quadriceps, and the calves of a human body. The inventive device includes a top plate, a bottom plate, a resistance plate, and a resistance knob. In use, after the Rotary Exercise Machine 10 is assembled and operable, the user stands upon the exposed surface of the top plate 20 and begins a twisting exercise motion. Upon a first try, the user then adjusts the tension of the Rotary Exercise Machine 10 by operation of the resistance knob 40. After adjusting the tension of the Rotary Exercise Machine 10, the user begins to exercise.
Claims13
A Rotary Exercise Machine comprising:
- a top plate, a bottom plate, a resistance plate, and a resistance knob;
- said top plate being rotatably mounted on said bottom plate, said resistance plate being fixedly mounted on said bottom plate between said top and bottom plates such that said top plate is rotatable with respect to said resistance plate;
- said top plate having an aperture therethrough at a location radially spaced from the center of rotation between said top and bottom plates, said resistance knob including a threaded resistance knob shaft threadedly mounted in said aperture in said top plate, said top plate having a top plate rim extending in a substantially downward direction from the outer perimeter of said top plate and a brake reaction wall mounted to said top plate rim and extending inwardly in a direction substantially parallel to said top plate;
- wherein a portion of said resistance plate is located between said brake reaction wall and the lower end of said resistance knob shaft such that selective rotation of said resistance knob advances said resistance knob shaft toward said brake reaction wall to produce a pinching of said resistance plate between said resistance knob shaft and said brake reaction wall to apply a variable amount of braking force between the resistance plate and the top plate and thereby vary the resistance exhibited by said top plate to rotate with respect to said bottom plate.
1 more element
A Rotary Exercise Machine comprising:
- a top plate, a bottom plate, a resistance plate, and a resistance knob;
- wherein the bottom plate is comprised of a lower base, a base shoulder, an upper base, and retaining apertures where the upper base is a raised extension of the lower base and the base shoulder integrally connects the upper base to the lower base and a bottom surface of the lower base further includes a center hollow which is further defined as a concave concentric indentation in the bottom surface of the lower base;
- wherein the lower base and the upper base are substantially flat surfaces and the lower base concentrically surrounds the upper base;
- wherein the resistance plate is fixedly and threadedly attached to the retaining apertures of the bottom plate by retaining screws and where the resistance plate further includes a plurality of ball bearing channels, at least one retaining screw aperture, a first resistance pad, a second resistance pad, a first brake disc surface, a second brake disc surface, and a hub shaft;
- wherein the resistance plate is a substantially flat horizontal element and is concentric with the ball bearing channels, the first resistance pad, the second resistance pad, the first brake disc surface, the second brake disc surface, and the hub shaft;
- wherein the hub shaft is located at the center of the resistance plate and is further defined as an upward extension protrusion and where the resistance plate matingly and rotatably receives the top plate and ball bearings by rotatably mating with the hub shaft and the ball bearing channels;
- wherein the top plate is rotatably held to the resistance plate by a pivot top plate is rotatably aperture and a center screw in conjunction with a slide surface washer and where the top plate is further comprised of ball bearing grooves, a brake aperture, a washer countersink surface, a top plate rim, and a brake reaction wall;
- and
- wherein the ball bearing grooves matingly receive and line up along a vertical centerline with the ball bearings and the ball bearing channels and where the top plate rim is an integrally downward extension normal to the top plate and further includes the brake reaction wall which integrally extends inward from the top plate rim.
6 more elements
Dependencies are inferred from the claim text.