Exercise devices – User manipulated force resisting apparatus – component... – Having common force transmitting support frame for user and...
Patent
1991-02-20
1993-01-12
Bahr, Robert
Exercise devices
User manipulated force resisting apparatus, component...
Having common force transmitting support frame for user and...
482 51, 482 96, 482113, 472110, A63B 2100
Patent
active
051785994
ABSTRACT:
A bidirectional, synchronous, total body exercise machine. The machine includes bidirectional force-resistance mechanism in the form of a cylinder with a piston and piston rod. A lever is mounted to a framework which includes a vertical support member and a horizontal support member. The piston rod is attached to one end of the lever and the cylinder is attached to the vertical support member of the frame. Foot pedals are attached to one end of the lever and a seat is mounted on the other end of the lever so that a user may be seated on the lever. A stationary handle bar is also provided on the vertical support member so that the user, when seated on the lever, can grasp the stationary handle and then can pull forward with the arms and pushing down on the foot pedals, while at the same time rocking the torso forward, pulling the piston rod downwardly. The piston in then returned by straightening the arms and relaxing the force on the foot pedals, while rocking the torso back. A fluid passageway connects chambers on opposite sides of the piston inside of the cylinder and by adjusting a valve which is positioned in the fluid passageway, the resistance which is offered by the cylinder as it forces the fluid from one chamber to the other can be selectively varied.
REFERENCES:
patent: 1562700 (1925-11-01), Herring
patent: 2176342 (1939-10-01), Hoppe
patent: 2544106 (1951-03-01), Ray
patent: 2835563 (1958-03-01), Lawton
patent: 4838543 (1989-06-01), Armstrong et al.
patent: 4940233 (1990-07-01), Boll et al.
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