Abstract: A load bearing hinge joint, including a first arm member, a second arm member and fastening means for pivotally interconnecting the second arm member to the first arm member, wherein the fastening means are positioned on a first side surface of the first arm member and on a second side surface of the first arm member; a support seat, wherein the support seat is positioned on atop surface of the first arm proximate to a second end of the first arm, wherein the second end is distal to and opposite facing a first end of the first arm member and wherein the support seat is configured to receive and support a bottom portion of the second arm member. The first arm member further including a shoulder positioned on a top surface of the first arm member proximate to the support seat, wherein the shoulder is configured to act as a fulcrum to facilitate a pivotal rotation of the second arm member relative to the first arm member at a pivot point.

Abstract: A foldable exercise device for performing chin up and pull up exercises has a first member having a hinge joint and a second member having a hinge joint. The device also has third and fourth L shaped members connected to the first and second members, with the fourth L member being spaced from the third L member. The first and second members pivot about a hinge joint from a folded configuration to an extended configuration. The third and fourth L shaped members extend from a folded configuration to an extended configuration about their respective hinged joints. The exercise device is transformed from a compact form when the third and fourth L shaped members are moved from the folded configuration to an extended configuration in a first position and separated in a second position to extend the first and second members from a folded to an extended position.

Abstract: A foldable exercise device for performing chin up and pull up exercises has a first member having a hinge joint and a second member having a hinge joint. The device also has third and fourth L shaped members connected to the first and second members, with the fourth L member being spaced from the third L member. The first and second members pivot about a hinge joint from a folded configuration to an extended configuration. The third and fourth L shaped members extend from a folded configuration to an extended configuration about their respective hinged joints. The exercise device is transformed from a compact form when the third and fourth L shaped members are moved from the folded configuration to an extended configuration in a first position and separated in a second position to extend the first and second members from a folded to an extended position.