Dual-purpose dumbbell

Abstract

A dual-purpose dumbbell has a bar, two weights and two adjusting assemblies. The bar has two ends. The two weights are mounted rotatably respectively on the ends of the bar and can be configured longitudinally or transversely relative to the bar. The adjusting assemblies are mounted respectively between the ends of the bar and the weights to allow the weights rotated relative to the bar. When the weights are configured longitudinally, the dual-purpose dumbbell is used as a dumbbell or a weighted baton. When the weights of the dual-purpose dumbbell are configured transversely, the dual-purpose dumbbell can be used as a handle for doing pushups. Since the dual-purpose dumbbell can be used as a dumbbell, a weighted baton and a handle for use when doing pushups, less space is required to store exercise equipment and less cost is incurred to procure the exercise equipment.

1 . A dual-purpose dumbbell comprising:
 a bar having two ends;   two weights being connected adjustably respectively to the ends of the bar; and   two adjusting assemblies being mounted respectively between the ends of the bar and the weights to allow the weights being adjusted relative to the bar.   
   
   
       2 . The dual-purpose dumbbell as claimed in  claim 1 , wherein
 each end of the bar has an inclined surface having
 a center; and 
 a locking recess being non-circular, being geometric with a 90° increment and being formed at the center of the end; 
   the bar further has
 an outer surface; and 
 two through holes being formed perpendicularly respectively through the centers of the inclined surfaces of the ends and communicating with the outer surface of the bar, each through hole having a countersink communicating with the outer surface; 
   each weight further has
 a proximal end being inclined, corresponding to the inclined surface of a corresponding end of the bar and having a center; 
 a distal end; 
 a locking protrusion being formed concentrically on and protruding from the proximal end and corresponding to and selectively engaging the locking recess of a corresponding end of the bar; 
 a fastening hole being formed concentrically in the locking protrusion; and 
 a foot being a pliable, non-skid pad and being attached to the distal end of the weight; and 
   each adjusting assembly has
 a fastener being mounted through one of the through holes in the bar, connecting to the fastening hole in a corresponding weight and having an enlarged head; and 
 a biasing element being mounted around the fastener between the bar and the enlarged head of the fastener and pulling the proximal end of the corresponding weight against the inclined surface of a corresponding end of the bar. 
   
   
   
       3 . The dual-purpose dumbbell as claimed in  claim 2 , wherein the outer surface of the bar is cylindrical. 
   
   
       4 . The dual-purpose dumbbell as claimed in  claim 2 , wherein
 the distal end of each weight has a recess; and   the foot is mounted in the recess.   
   
   
       5 . The dual-purpose dumbbell as claimed in  claim 3 , wherein
 the distal end of each weight has a recess; and   the foot is mounted in the recess.   
   
   
       6 . The dual-purpose dumbbell as claimed in  claim 2 , wherein the fastening holes of the weights are threaded. 
   
   
       7 . The dual-purpose dumbbell as claimed in  claim 5 , wherein the fastening holes of the weights are threaded. 
   
   
       8 . The dual-purpose dumbbell as claimed in  claim 2 , wherein the fasteners are bolts. 
   
   
       9 . The dual-purpose dumbbell as claimed in  claim 7 , wherein the fasteners are bolts. 
   
   
       10 . The dual-purpose dumbbell as claimed in  claim 2 , wherein the biasing elements are springs. 
   
   
       11 . The dual-purpose dumbbell as claimed in  claim 9 , wherein the biasing elements are springs. 
   
   
       12 . The dual-purpose dumbbell as claimed in  claim 1  further comprising a grip being a pliable sheath, being mounted around the bar and having a non-skid outer surface. 
   
   
       13 . The dual-purpose dumbbell as claimed in  claim 11  further comprising a grip being a pliable sheath, being mounted around the bar and having a non-skid outer surface.