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US 7,621,861 B1Granted
Rotational exercise apparatus
OwnerRobert S. Kalember, Michael W. Knightinventors
Life of this patent
Estimating the term…
Abstract
A rotational exercise apparatus (10) for strengthen and toning the human body which consists of a collapsible stationary support frame (20) with horizontal gripping arms (22) and a base plate (52) attached in a horizontal position to the frame. A rotatable platform (54) is positioned on top of the base plate and freely rotates with a pair of swiveling foot plates (56) mounted on the platform upper surface. During use, a person places their foot on each foot plate (56) and exercises by rotating and counter rotating both the platform (54) and the foot plates (56) simultaneously while maintaining balance by holding onto the gripping arms (22).
Claims17
A rotational exercise apparatus comprising:
- a) a collapsible stationary support frame having horizontal gripping arms for gripping by a user's hand for stability when standing on the apparatus, wherein said support frame further comprises a frame base having sides, a front and a back forming a rectangle, with a pair of upward-extending base gussets engaging each of the sides and the back,
- a cross bar in between the sides for stability,
- a U-shaped upright having two vertical legs attached to a horizontal top member with the legs pivotally engaging each pair of base gussets,
- each U-shaped upright having at least one upright gusset on each vertical leg extending horizontally, and
- said gripping arms extending horizontally toward the frame base front with the gripping arms pivotally attached to said upright gussets,
- b) a stationary base plate rigidly attached to the stationary support frame in a horizontal parallel position with the base plate higher than floor level upon which said apparatus is resting,
- c) a rotatable platform juxtapositioned on said stationary base plate in such a manner as to freely revolve above the base plate,
- d) a matched pair of swiveling foot plates mounted onto said rotatable platform, thereby permitting a person to place a foot on each foot plate for exercising by rotating and counter rotating both the platform and the foot plates simultaneously while maintaining balance by holding onto the gripping arms, and
- e) said platform is permitted to rotate on said base plate and said foot plates are permitted to rotate on said platform.
6 more elements
A rotational exercise apparatus comprising:
- a) a collapsible stationary support frame having horizontal gripping arms for gripping by a user's hand for stability when standing on the apparatus, wherein said support frame further comprises a frame base having sides, a front and a back forming a rectangle, with a pair of upward-extending base gussets engaging each of the sides and the back,
- a cross bar in between the sides for stability,
- a U-shaped upright having two vertical legs attached to a horizontal top member with the legs pivotally engaging each pair of base gussets,
- each U-shaped upright having at least one upright gusset on each vertical leg extending horizontally, and
- said gripping arms extending horizontally toward the frame base front with the gripping arms pivotally attached to said upright gussets,
- said frame base further comprises a rectangular tube construction, with said base gussets having a flat plate construction each with a pivot pin and a quick release pin,
- wherein said pivot pin further comprises a bolt and a locknut, wherein said quick release pin further comprises a ring grip self-locking pin, wherein said pivot pin and quick release pin permit said U-shaped upright to fold and engage said base frame to collapse for storage when the quick release pin is removed,
- b) a stationary base plate rigidly attached to the stationary support frame in a horizontal parallel position with the base plate higher than floor level upon which said apparatus is resting,
- c) a rotatable platform juxtapositioned on said stationary base plate in such a manner as to freely revolve above the base plate,
- d) a matched pair of swiveling foot plates mounted onto said rotatable platform, thereby permitting a person to place a foot on each foot plate for exercising by rotating and counter rotating both the platform and the foot plates simultaneously while maintaining balance by holding onto the gripping arms, and
- e) said platform is permitted to rotate on said base plate and said foot plates are permitted to rotate on said platform.
8 more elements
A rotational exercise apparatus comprising:
- a) a collapsible stationary support frame having horizontal gripping arms for gripping by a user's hand for stability when standing on the apparatus,
- b) a stationary base plate rigidly attached to the stationary support frame in a horizontal parallel position with the base plate higher than floor level upon which said apparatus is resting,
- c) a rotatable platform juxtapositioned on said stationary base plate in such a manner as to freely revolve above the base plate,
- d) a matched pair of swiveling foot plates mounted onto said rotatable platform, thereby permitting a person to place a foot on each foot plate for exercising by rotating and counter rotating both the platform and the foot plates simultaneously while maintaining balance by holding onto the gripping arms, and
- e) said platform is permitted to rotate on said base plate and said foot plates are permitted to rotate on said platform
- which further comprises:
- said rotatable platform having an injection molded thermoplastic construction,
- said rotatable platform having a downward-depending centrally located foot plate spindle therein,
- said rotatable platform having a plurality of roller compartments formed integrally therein,
- a plurality of tapered roller bearings disposed within said roller compartments,
- each roller bearing having an axle therein attached on distal ends to said roller compartment, and
- said rotatable platform having two foot plate bores therein for receiving said foot plates.
9 more elements
Dependencies are inferred from the claim text.