The design of gripping mechanism for prosthetic hands is usually an important and complex task, especially when the mechanism attempt to simulate dexterous fingers with multiple joints actuated. The gripping devices usually consist of a finger like and thumb like member to grip an object. The cable and spring mechanism is used to compensate the problem face by the other mechanisms like weight of hand, backlash in the joint, poor function of existing artificial hands. To overcome the disadvantages in existing art, new mechanism is introduced in which each finger compromises a number of spring and cable conduits system. The spring acts as a structure and joint for the finger. As there is no mechanical linkages are involves the operation is noiseless and smooth. Each finger consists of two springs which act as phalanges for finger. Following invention is described in detail with the help of Figure 1 of Sheet 1 illustrates figure 1 showing spring mechanism.
