Patent ID: 8827875

Claim:
An apparatus comprising: first, second, third, and fourth vertical members; a first top horizontal member which joins a top of the first and a top of the second vertical members; a second top horizontal member which joins a top of the third and a top of the fourth vertical members; a third top horizontal member which joins a top of the first top horizontal member and a top of the second top horizontal member; wherein the first, second, third, and fourth vertical members, and the first, second, and third top horizontal members form a cage structure; a first dumbbell holder member adjustably fixed to the cage structure; a second dumbbell holder member adjustably fixed to the cage structure; wherein the first dumbbell holder member includes a curved portion onto which a central portion of a first dumbbell can be placed; wherein the second dumbbell holder member includes a curved portion onto which a central portion of a second dumbbell can be placed; and further comprising a device for adjusting a position of the first dumbbell holder member with respect to the cage structure; and a device for adjusting a position of the second dumbbell holder member with respect to the cage structure; and further comprising a fourth horizontal member fixed to the third horizontal member, such that the third horizontal member is at one vertical height and the fourth horizontal member is substantially parallel to the third horizontal member and at a different vertical height; wherein the fourth horizontal member is fixed to the cage structure through the third horizontal member but is not otherwise fixed to the cage structure; and further comprising a fifth horizontal member which is inserted into a first end of the fourth horizontal member and a sixth horizontal member which is inserted into a second end of the fourth horizontal member so that the fifth horizontal member and the sixth horizontal member telescope inside of the fourth horizontal member; wherein the fifth horizontal member is configured to be attached to a first device for suspending a first dumbbell from the cage structure, through the fifth horizontal member, wherein the first device for suspending the first dumbbell is not attached to the cage structure other than through the fifth horizontal member, so that sliding the fifth horizontal member, while a portion of the fifth horizontal member is within the fourth horizontal member causes the first device for suspending the first dumbbell to slide; and wherein the sixth horizontal member is configured to be attached to a second device for suspending a second dumbbell from the cage structure, through the sixth horizontal member, wherein the second device for suspending the second dumbbell is not attached to the cage structure other than through the sixth horizontal member, so that sliding the sixth horizontal member while a portion of the sixth horizontal member is within the fourth horizontal member causes the second device for suspending the first dumbbell to slide.