Calibration of load indicator for ergometric exerciser

Details Calibration of load indicator for ergometric exerciser Calibration of load indicator for ergometric exerciser

1981-06-08

1984-03-27

Hafer, Robert A.

Undertaking

73130, A63B 2100, G01L 528

Patent

active

044389213

ABSTRACT:
Method and apparatus for effecting precise adjustment of pointer on load indicator of ergometric exerciser having pedal-actuated wheel, adjustable caliper brakes engaging wheel and mounted on a pivoted frame for movement by the wheel to actuate load indicator pointer, and including introducing an adjustable biasing force against movement of pivoted frame in form of a spring and adjustable calibration screw and locknut engaging the spring, the biasing force being adjusted by hanging a weight from periphery of wheel, adjusting brakes to just prevent weight from turning wheel, manually turning wheel slightly in forward direction, allowing slight slippage of wheel past brakes, rapping side of wheel briskly adjacent brakes and noting reading of load indicator, manually rotating wheel slightly in rearward direction without brake slippage and repeating last recited step, and adjusting calibration screw in accordance with average of said readings to bring pointer to proper position.

REFERENCES:
patent: Re29404 (1977-09-01), Blevens
patent: 334635 (1886-01-01), Bowen
patent: 1676774 (1928-07-01), Cronk
patent: 2510973 (1950-06-01), Guillemin, Jr.
patent: 2680967 (1954-06-01), Newman
patent: 3882971 (1975-05-01), Peckham, Jr.
patent: 3929209 (1975-12-01), Peckham, Jr.
patent: 3995491 (1976-12-01), Wolfla
patent: 4289309 (1981-09-01), Hoffmann
patent: 4313602 (1982-02-01), Sullivan

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