Adjustable Resistance Exercise Machine
AssigneeLagree Technologies, Inc.
InventorsSebastien Anthony Louis Lagree, Samuel D. Cox, Todd G. Remund
Life of this patent
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Abstract
An adjustable resistance exercise machine for providing variable resistance forces on a pull cable extending from the machine. The adjustable resistance exercise machine generally includes a plurality of power springs that may be selectively engaged using a cam mechanism. By engaging springs with different forces, the resistance may be adjusted incrementally as preferred for performing different exercises. The adjustable resistance exercise machine may be connected to various structures, either below or above an exerciser, to allow the exerciser to choose whether to pull the pull cable up or down during exercise.
Claims20
An adjustable resistance exercise machine, comprising:
- a center shaft comprising a hub and a distal end;
- a drive gear rotatably mounted on the center shaft, the drive gear comprising drive gear teeth;
- a first spring retainer positioned on the center shaft by a hub;
- a first power spring having a first end and a second end, wherein the first end is rotationally held by the hub of the first spring retainer;
- a first driven gear rotatably positioned over the center shaft, wherein the second end of the first power spring is attached to the first driven gear, the first driven gear comprising a first set of teeth that selectively engage with the drive gear teeth so that the first driven gear rotates when the drive gear rotates;
- a compression spacer positioned between the hub of the center shaft and a cam pressure ring to hold the first set of teeth out of engagement with the drive gear teeth;
- and
- a cam mechanism on the distal end of the center shaft, the cam mechanism comprising a cam lobe, wherein the cam lobe is positioned to apply a force to the cam pressure ring toward the hub of the center shaft to compress the compression spacer;
- wherein the first teeth of the driven gear engage with the drive gear teeth when the first compression spacer is compressed, and wherein rotation of the drive gear is resisted by the first power spring.
Dependencies are inferred from the claim text.