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A load selector, in particular for an exercise machine in which a load to be used in an exercise is variable and is determined by a value of a sum of a plurality of weight elements which are associated, through related fastening elements, to a tugging element comprising a rod kinematically connected

A load selector, in particular for an exercise machine in which a load to be used in an exercise is variable and is determined by a value of a sum of a plurality of weight elements which are associated, through related fastening elements, to a tugging element comprising a rod kinematically connected to appropriate connectors able to exert a force by a user; the weight elements can be stacked on top of one another and present corresponding holed portions able to define a channel for the rod, the rod presents, along its own longitudinal development, i.e., along a direction of development of the aforesaid channel, cross sections of alternatively differentiated value to define thereby a series of notches or tapers; the fastening elements comprise a plurality of coupling elements, positioned in correspondence with each of the weight elements, and movable between a first position in which they do not interact with the rod and a second position in which they do interact with the rod itself, in correspondence with one of the notches or tapers, for a determination of the load.

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[ What is claimed:] [1.] An exercise machine having a load selector, comprising:a tugging element including a rod;a plurality of weight elements stacked on top of one another and associated, through related fastening elements, to said tugging element, a load to be used in an exercise being variable

[ What is claimed:] [1.] An exercise machine having a load selector, comprising:a tugging element including a rod;a plurality of weight elements stacked on top of one another and associated, through related fastening elements, to said tugging element, a load to be used in an exercise being variable and being determined by a value of a sum of said plurality of weight elements, said weight elements having formed therein corresponding holed portions defining a channel for said rod;a movable element arranged to be moved in a direction parallel to a development of said rod; andmeans for transmitting a force exerted by a user, said rod being kinematically connected to said means for transmitting said force by said user; wherein:said rod has, along a longitudinal direction, a plurality of cross sections of alternatively differentiated value as to define a series of notches or tapers,said fastening elements comprise a plurality of coupling elements positioned in correspondence with each of said weight elements, and being movable between a first position, in which said coupling elements do not interact with said rod, and a second position, in which said coupling elements do interact with said rod, in correspondence with one of said series of notches or tapers, for a determination of said load, said coupling elements being arranged to be moved by said movable element, andsaid coupling elements are provided thereon with a thrust element able to maintain said coupling elements in said second position.