Load bearing hinge joint

An exercise pull-up device including two or more load bearing hinge joints, wherein each of the load bearing hinge joints comprise:

• a first arm member, wherein the first arm member includes a top surface, a bottom surface, a first side surface, a second side surface, a first end and a second end;
• wherein the first side surface of the first arm member is opposite to, and at a first distance from, the second side surface of the first arm member;
• a second arm member;
• wherein the second arm member includes a top surface, a bottom surface, a first side surface, a second side surface, a first end and a second end;
• wherein the first side surface of the second arm member is opposite to, and at a second distance from, the second side surface of the second arm member;
• fastening means for pivotally interconnecting the second arm member to the first arm member, wherein a first fastening means positioned on the first side surface of the first arm member connects the first arm member to the second arm member at the first side surface of the second arm member;
• and wherein a second fastening means positioned on the second side surface of the first arm member connects the first arm member to the second arm member at the second side surface of the second arm member;
• a support seat, wherein the support seat is positioned on the top surface of the first arm member proximate to the second end of the first arm member, wherein the second end is distal to and opposite facing the 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;
• and
• a shoulder, wherein the shoulder is positioned on the top surface of the first arm member, proximate to the support seat and wherein a second end of the shoulder most proximate to the second end of the first arm member 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.