US 4,306,714 AGranted

Iso-energetic ankle exerciser

OwnerJoseph L. Loomis, Daniel P. Riley +1inventors

InventorsJoseph L. Loomis, Daniel P. Riley, Walter J. Hochberg

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Abstract

This is an ankle and/or wrist exercising device capable of simultaneous rotational movement about any single axis and/or any combination of two or three axes with the resistance to movement provided by the opposite limb, ergometer or a second person and with the motion being synchronized for each foot or hand relative to the opposite foot or hand. The device is comprised of two U-shaped yokes rotatably mounted upon a base, adapted to rotate about a Y axis and rotatably coupled to one another. There are two U-shaped brackets rotatably coupled to each of said U-shaped yokes, adapted to rotate about a Z axis perpendicular to said Y axis and rotatably coupled to one another. Two U-shaped gimbals are integrally coupled to each of said U-shaped yokes. Two stirrups are rotatably mounted upon each of said U-shaped gimbals and adapted to rotate about an X axis. The X axis is perpendicular to the Y axis and the Z axis. Each of said stirrups is coupled to the other by a beam adapted to transmit X axis motion.

Claims8

Dependent claims

An exercise device adapted to actuation by the feet, comprising in combination:

a base board;
two U-shaped yokes rotatably mounted on said base board, adjacent to one another;
two U-shaped brackets each rotatably mounted upon said U-shaped yokes;
two U-shaped gimbals rotatably mounted upon a U-shaped bracket;
two stirrups each rotatably mounted upon a U-shaped gimbal;
two boot holders each mounted upon a stirrup and adapted to securely hold a foot thereon;
an X axis fulcrum integrally mounted upon said base board and positioned between said U-shaped yokes;
an X axis beam rotatably mounted upon said X axis fulcrum;
a lock pin extending through said X axis fulcrum and said X axis beam and adapted to prevent the rotation of said X axis beam.
stirrup contactor means integrally positioned on the end portions of X axis beam, each stirrup contactor means in contact with the bottom portion of said stirrup;
a Y axis fulcrum integrally connected to said base board and positioned between said U-shaped yokes;
a Y axis tie rod, the end portions of which are rotatably connected to said U-shaped yokes whereby Y axis motion of one of said U-shaped yokes is transmitted to the other of said U-shaped yokes;
a central pillar integrally connected to said base board and positioned between said U-shaped yokes;
a Z axis tie rod, the end portions of which are rotatably connected to each of said U-shaped gimbals, whereby Z axis rotation of one of said U-shaped gimbals is transmitted to the other of said U-shaped gimbals.

11 more elements

Dependencies are inferred from the claim text.