Structure of abdomen exerciser

Details Structure of abdomen exerciser Structure of abdomen exerciser

1993-02-25

1994-04-05

Apley, Richard J.

Exercise devices

Support for entire body of user

482 97, A63B 2100

Patent

active

053000056

ABSTRACT:
An abdomen exerciser includes two three-end links respectively pivoted to two curved supports on a base frame at opposite sides to hold two leg presses, two sets of weights, and a back cushion. The sets of weights automatically turn the three-end links on the curved supports in lifting the back cushion from a horizontal position to a vertical position as the player bends the trunk upwards, or give a pressure to the player's back as the player lies down. Either leg press can be turned into the operative position for hanging the respective leg in raising the player's center of gravity.

REFERENCES:
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patent: 5060939 (1991-10-01), Oswald et al.
patent: 5066003 (1991-11-01), Jones
patent: 5070863 (1991-12-01), McArthur et al.
patent: 5110121 (1992-05-01), Foster
patent: 5180354 (1993-01-01), Jones
patent: 5215511 (1993-06-01), Cheng

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