Patent ID: 6196952
Filing Date: 2001-03-06
Classification: A63B

Abstract:
A dumbbell comprising:a carrying seat formed of two parallel plates, two hollow rods and a grip, each of said plates provided at a top thereof with a receiving cell, through holes corresponding in location to said hollow rods, and a plurality of carrying grooves at a bottom thereof;a plurality of weights each having a pair of block bodies identical to each other and provided at a top thereof with two through holes corresponding to said through holes of said plates, each said pair of block bodies further provided at a bottom thereof with a plurality of carrying grooves and two connection rods located between bottoms of said two block bodies, said connection rods being different in length between different pairs of block bodies so as to enable said weights to be juxtaposed on said carrying seat and that said connection rods press against a predetermined carrying groove; anda weight-adjusting device disposed in said receiving cells and composed of an adjustor, at least one cord, at least one steering mechanism, and four pins disposed in pairs in said hollow rods such that said pins are corresponding in location to said through holes of said plates, and that said pins are linked with said adjustor to enable said pins to be simultaneously extracted from or retracted into said plates to be received at one end thereof in said through holes of said block bodies, thereby coupling said carrying seat with a desired number of said weights.