Exercise apparatus with relatively rotatable arms

Details Exercise apparatus with relatively rotatable arms Exercise apparatus with relatively rotatable arms

1982-04-30

1984-08-14

Johnson, Richard J.

Undertaking

272141, A63B 2132

Patent

active

044652763

ABSTRACT:
Exercise apparatus comprises a knuckle joint (3) incorporating connectors (4, 5) from which extend the arms (1, 2) of the apparatus. The knuckle joint (3) comprises two housings each accommodating two resilient masses (55) in arcuate channels (12, 13). Relative angular movement of the arms (1, 2) about the axis of the knuckle joint compresses the masses (55) by means of arcuate wall portions (22, 23) located in the channels. Each connector is releasably coupled by a pin (47) or pawl (96) to a part of one housing and by releasing the coupling the arm extending from the connector can be rotated about the housing axis without compressing the resilient mass.

REFERENCES:
patent: Re23744 (1953-11-01), Magida
patent: 2562501 (1951-07-01), Madden
patent: 2973962 (1961-03-01), Griffen
patent: 3315959 (1967-04-01), Carnielli
patent: 3515384 (1970-06-01), Alexander
patent: 4171802 (1979-10-01), Stoecker
patent: 4374588 (1983-02-01), Ruggles
patent: 4385760 (1983-05-01), Mattox et al.

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