Exercise weight bar with rotating handle and cam selection device

An exercise weight system comprising:

• a rod having a longitudinal axis;
• one or more weights selectively securable to the rod;
• a selector positioned on the rod such that the selector is rotatable about the longitudinal axis of the rod, the selector being graspable during the performance of an exercise;
• and
• an engagement system that selectively secures the one or more weights to the rod, the engagement system comprising:
• one or more weight engagement members positioned about the rod, each of the one or more weight engagement members having at least one cam surface formed thereon, the one or more weight engagement members being movable along at least a portion of the rod between first and second positions;
• one or more cam followers linked to the selector such that rotation of the selector about the longitudinal axis of the rod causes the one or more cam followers to rotate about the longitudinal axis of the rod, each of the one or more cam followers engaging at least one of the cam surfaces of the one or more weight engagement members, wherein the engagement between the cam followers and the cam surfaces causes the one or more weight engagement members to move between the first and second positions as the selector and cam followers are rotated about the longitudinal axis of the rod, wherein the one or more weight engagement members disengage the one or more weights when the one or more weight engagement members are in the first position, and the one or more weight engagement members engage and secure the one or more weights to the rod when the one or more weight engagement members are in the second position.

An exercise weight system comprising:

• a rod having a longitudinal axis;
• one or more weights selectively securable to the rod;
• a selector mounted on the rod and being rotatable about the longitudinal axis of the rod, the selector being graspable during the performance of an exercise;
• and
• an engagement system that selectively secures the one or more weights to the rod, the engagement system comprising:
• one or more collars positioned about the rod and being rotatable about the longitudinal axis of the rod, the one or more collars being linked to the selector such that rotation of the selector about the longitudinal axis of the rod causes the one or more collars to rotate about the longitudinal axis of the rod, each of the one or more collars having at least one cam surface formed thereon,
• one or more weight engagement members that pivot between first and second positions relative to the rod, each of the one or more weight engagement members comprising a cam follower that engages at least one of the cam surfaces of the one or more collars, wherein the engagement between the cam followers and the cam surfaces causes the one or more weight engagement members to pivot between the first and second positions as the selector and collars are rotated about the longitudinal axis of the rod, wherein the one or more weight engagement members disengage the one or more weights when the one or more weight engagement members are in the first position, and the one or more weight engagement members engage and secure the one or more weights to the rod when the one or more weight engagement members are in the second position.