Exercise devices – User manipulated force resisting apparatus – component... – Utilizing weight resistance
Patent
1997-07-08
1999-03-09
Mulcahy, John
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing weight resistance
482 93, 482108, A63B 21075
Patent
active
058792740
ABSTRACT:
A dumbbell assembly (10) includes a pair of receptacles (12, 14, 60, 82) which are containers adapted to receive and secure weighted plates (28). The receptacles (12, 14, 60, 82) are integrally molded or rigidly secured to opposite ends of a handle bar (18, 88). In one embodiment, the handle bar (18) includes a tube (24) housing at least one spring (16) and a pair of shafts. The spring (16) biases a push platter (46) away from the tube (24) and toward an outer end (36) of the receptacle (12). The weighted plates (28) are admitted into the receptacles through apertures in sidewalls thereof and retained between the spring-biased push platter (46) and the outer end 36 of the receptacle 12. In another embodiment, each end of a handle bar (88) is integrally molded or rigidly secured to a receptacle (82), which is a grooved solid shell with mated first and second portions (90, 92). The first and second portions 90 and 92 are separable, for receiving the weighted plates (28), and mated, for securing weighted plates (28) therein. Both the first and second portions (90, 92) of the receptacle (82) include a series of grooves (100) on an outer wall (102) for seating an elastomeric ring-shaped band (104). Both the first and second portions (90, 92) include a series of ribs (99) defining spaces (96) formed on an inner wall (98) which position the plates (28). The mated portions (90, 92) of the receptacle (82), and the weighted plates (28) within, are secured when an elastomeric band (104) is seated in one of the grooves (100) in the outer wall (102) of each receptacle (82).
REFERENCES:
patent: 850964 (1907-04-01), Pelletier et al.
patent: 3488051 (1970-01-01), Papistas-Scherer
patent: 4822034 (1989-04-01), Shields
patent: 5123885 (1992-06-01), Shields
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