초록 ▼

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) ab

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.

대표청구항 ▼

Exercise apparatus, comprising: a first rigid arm having a disc portion rigidly connected to one end thereof; a second rigid arm pivotally connected to said disc portion whereby said first and second arms are pivotal relative to each other about a pivotal axis; said disc portion having an abutment e

Exercise apparatus, comprising: a first rigid arm having a disc portion rigidly connected to one end thereof; a second rigid arm pivotally connected to said disc portion whereby said first and second arms are pivotal relative to each other about a pivotal axis; said disc portion having an abutment extending from one side thereof; a cap overlying said disc portion with said abutment engaged in said cap, said cap being pivotal about said pivotal axis relative to said disc portion and said second arm; resilient means, disposed in said cap and operative between said abutment and said cap, for resisting relative pivoting between said cap and said disc portion in at least one direction; and locking means, connected to said second arm, for releasably engaging any one of a series of location means on said cap for locking said second arm and said cap against relative rotation, release of said locking means enabling said cap to rotate with said first arm relative to said second arm without resistance from said resilient means, whereby the angular position about said pivotal axis of said first arm relative to said second arm can be adjusted without stressing said resilient means.