Leg exercise machines having retractable leg support and methods

Details Leg exercise machines having retractable leg support and methods Leg exercise machines having retractable leg support and methods

1994-07-05

1996-03-19

Apley, Richard J.

Exercise devices

User manipulated force resisting apparatus, component...

Having common force transmitting support frame for user and...

482192, A63B 2304

Patent

active

054999626

ABSTRACT:
A machine for exercising leg muscles including a movement arm rotatable about a horizontal axis, a seat for receiving a user with the legs engageable with the movement arm to rotate it in one direction about the axis, and a weight stack including a resistance weight and a vertical stack pin connectable to the resistance weight. A sprocket is connected to the movement arm to rotate with the movement arm, and a drive connection including a chain or cable is established between the sprocket and the bottom of the stack pin to raise the stack pin when the movement arm is rotated in one direction. In one embodiment a drive lever is pivotally connected to the bottom of the stack pin to raise the stack pin when the movement arm is rotated in one direction in opposition to the resistance weight. The chain is connected to an intermediate portion of the drive lever. The movement arm is provided with a convenient handle for rotating the movement arm while the user is seated.
An auxiliary support is provided to support the one leg of the user while the other is being exercised. The auxiliary support is pivotally mounted for movement between a retracted non-use position extending vertically at one side of the machine and an extended use position extending across the front of the machine.

REFERENCES:
patent: 3708166 (1973-01-01), Annas
patent: 4200279 (1980-04-01), Lambert, Jr.
patent: 4448412 (1984-05-01), Brentham
patent: 5020797 (1991-06-01), Burns
patent: 5236406 (1993-08-01), Webber

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