Exercise apparatus with rotatable cam
AssigneeKeiser Corporation
InventorDennis L. Keiser
Life of this patent
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Abstract
A coupling mechanism for an exercise apparatus is disclosed. The coupling mechanism may include a resistance source coupled with a housing, a rod coupled to the resistance source, a clevis coupled to the rod, and a cam rotatably coupled to the clevis about an axis. The cam may include a curved outside surface with a first channel, and a curved inside surface with a second and third channel. The coupling mechanism may also include a cable key coupled to the cam and several cables.
Claims20
A cam rotatably attached to a resistance unit of an exercise apparatus, the cam comprising:
- a first circular segment including a first cable channel;
- a second circular segment including a second cable channel and a third cable channel, wherein the second circular segment is positioned opposite the first circular segment;
- and
- an aperture positioned such that a distance between a tangent of the first cable channel and a tangent of the second and third cable channels, is constant as the cam rotates from a first position to a second position.
A cam of an exercise apparatus, the cam comprising:
- a first circular segment including an outer surface;
- a second circular segment including an inner surface and positioned opposite the first circular segment, and wherein the first and second circular segments have a non-constant radius;
- and
- an aperture positioned between the inner surface and the outer surface such that a distance between a tangent of the inner surface and a tangent of the outer surface is constant regardless of the orientation and movement of the cam.
Dependencies are inferred from the claim text.