Undertaking
Patent
1983-01-20
1985-02-19
Apley, Richard J.
Undertaking
272118, A63B 2106
Patent
active
045000891
ABSTRACT:
This machine includes a saddle-type seat for supporting the user in substantially an upright position with the legs being maintained in position during use of the machine. A user-actuated lever is provided with a padded roller on one end thereof. The padded roller is adapted to engage the back of the user at a position substantially in alignment with the shoulder blades and the other end of the lever is pivotally supported at a position in substantial alignment with the waist of the user. The other end of the user-actuated lever is operatively connected to weights. The connection between the user-actuated lever and the weights includes a variable radius cam for providing a variable resistance force to lifting and lowering the weights with corresponding movement of the user between a first position with the spine in a forwardly bent position and a second position with the spine in a substantially straight position to provide a full range exercising of the muscles associated with the lower back of the user.
REFERENCES:
patent: 2223309 (1940-11-01), Swanson
patent: 3465750 (1969-09-01), Schawalder
patent: 3856297 (1974-12-01), Schnell
patent: 4240626 (1980-12-01), Lambert
Apley Richard J.
Browne William R.
Nautilus Sports Medical Industries, Inc.
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