Patent attributes
A structure for a ball-and-socket joint connector is provided, including a connecting element, an encasing unit and a fastening unit. The connecting unit includes a ball-shaped connecting element at one end. The connecting element is placed inside the encasing unit to form a ball-and-socket joint structure. The fastening unit is engaged to the outer circumference of the top of the encasing unit to fasten the connecting unit and the encasing unit after the adjustment. The connecting element includes two layers of materials with different hardness. The outer layer is softer than the inner layer so as to increase the friction between the connecting element and the encasing unit after the fastening unit is applied to fasten the connecting unit and the encasing unit.
