Knock down selectorized dumbbell having fastener and tool free assembly of nested weights

Abstract

A selectorized dumbbell includes a horizontal stack of nested left weight plates and a horizontal stack of spaced right weight plates with the stacks being separated by a gap into which a handle may be inserted. A selector is movable into different positions relative to the handle to vary how many nested left and right weight plates from the stacks thereof are coupled to the handle to vary the exercise mass of the handle. Each left weight plate has a counterpart right weight plate counterpart which are coupled together by at least one interconnecting member having a first keyhole slot connection between the left end of the interconnecting member and the left weight plate and a second keyhole slot connection between the right end of the interconnecting member and the right weight plate.

1 . A selectorized dumbbell, which comprises:
 (a) a plurality of weights, wherein each weight comprises a pair of weight plates and at least one interconnecting member extending therebetween and joining the pair of weight plates together through a pair of releasable connections that may be made by a user to configure each weight in an assembled state and that may be unmade by the user to configure each weight in a disassembled state, the weight plates and the at least one interconnecting member of each weight being separate and distinct from the weight plates and the at least one interconnecting member of the other weights, wherein the releasable connections in each weight are configured to be made and unmade by the user without the need for installing and removing, respectively, fasteners and/or without the need for tools;   (b) a handle;   (c) a selector that is selectively adjustable by the user to couple different numbers of exercise weights to the handle to vary the exercise mass provided by the dumbbell; and   (d) a carrying case for containing the weights in their disassembled states, the handle, and the selector.   
     
     
         2 . The dumbbell of  claim 1 , wherein the handle comprises a pair of ends and a hand grip extending therebetween and joining the pair of ends together through a pair of releasable connections that may be made by a user to assemble the handle and that may be unmade by the user to disassemble the handle. 
     
     
         3 . The dumbbell of  claim 2 , wherein the releasable connections in the handle are configured to be made by hand and unmade by the user without the need for tools. 
     
     
         4 . The dumbbell of  claim 1 , wherein the carrying case comprises pivotally connected halves that may be swung between open and closed positions. 
     
     
         5 . The dumbbell of  claim 4 , wherein the carrying case includes a handle that is configured to be gripped and held by the user to allow the user to transport the weights in their disassembled states, the handle and the selector from place to place. 
     
     
         6 . A selectorized dumbbell, which comprises:
 (a) a plurality of weights, wherein each weight comprises a pair of weight plates and at least one interconnecting member extending therebetween and joining the pair of weight plates together through a pair of releasable keyhole slot connections that may be made by a user to configure each weight in an assembled state and that may be unmade by the user to configure each weight in a disassembled state, the weight plates and the at least one interconnecting member of each weight being separate and distinct from the weight plates and the at least one interconnecting member of the other weight;   (b) a handle;   (c) a selector that is selectively adjustable by the user to couple different numbers of exercise weights to the handle to vary the exercise mass provided by the dumbbell; and   (d) a carrying case for containing the weights in their disassembled states, the handle, and the selector.