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US 4,082,267 AGranted
Bilateral isokinetic exerciser
OwnerEvan R. Flavellinventor
Life of this patent
Estimating the term…
Abstract
A proportioned resistance exercising apparatus capable of exercising two limbs synchronously or separately with a single resistance mechanism. Two limb-engageable drive input devices are connected through one-way clutches to a single rotary shaft, which is, in turn, drivingly connected to the proportioned isokinetic resistance-producing mechanism.
Claims12
Bilateral isokinetic exercising apparatus, comprising:
- a plurality of limb-engageable input means for responding to a power stroke in a power direction of reciprocating movement, so that a person exercising can move each input means with one limb in the power direction,
- a plurality of converting means each connected to one only of said input means for converting the reciprocating movement of each said input means into a separate rotational motion, each said converting means including its own rotatable member that is acted on by that rotational motion,
- a single speed regulating means for opposing rotational movement of any and all said rotatable members with proportioned isokinetic resistance,
- driving connection means for connecting all said rotatable members to said speed regulating means and including separate one-way clutch means for connecting each said rotatable member to said speed regulating means and transmitting connection means for each said clutch for providing that movement of each input means in a first power direction drives said speed regulating means, and for providing that movement of each said input means in the opposite direction is disengaged from said speed-regulating means,
- whereby motion of each input means in the power direction by the person exercising is opposed by said speed-regulating means with a resistance force proportional to the force applied by the person exercising, whereas movement of each said input means in the opposite direction is unopposed by said speed-regulating means.
2 more elements
Bilateral isokinetic exercising apparatus, comprising:
- a plurality of rotatable drums,
- a corresponding plurality of limb-engageable input means for responding to back-and-forth movement of a limb, said movement including a power direction and a relaxation direction, each said input means including a cable partly wound around one said drum for converting the back-and-forth movement of each said input means into rotational motion of said drum, with a power direction of rotation and a relaxation direction of rotation,
- a corresponding plurality of recoil spring means, each connected to one said drum for urging said drum and said input means in the relaxation direction, so that relaxation by the person exercising transmitted to any said input means enables said recoil means to restore that said input means to a starting position,
- a common rotatable shaft,
- separate one-way clutch means for connecting each said drum to said common shaft during rotation thereof in the power direction and for disengagement therefrom for rotation in the relaxation direction, and
- dynamic brake means operatively connected to said common rotatable shaft and thereby to each said one-way clutch means and therethrough to each said drum when its said one-way clutch means is engaged, for opposing rotational movement of any and all said drums with proportioned isokinetic resistance when their respective one-way clutches are engaged.
3 more elements
Dependencies are inferred from the claim text.