Dual cantilevered leaf spring structure

A spring limb support device simulating or supplementing the feel and action during walking of a human foot and lower leg comprising:

• a mounting platform for providing connection to the leg of a human wearer;
• a pair of monolithic independent limbs, each of which simulates a part of the leg, independently extending to the mounting platform, part of one of which limbs simulates the toe and front part of the foot and part of the other of which simulates the heel of the foot, each of said limbs being composed of resilient spring material and being curved to deform under the weight and dynamic forces of body movement and each being separately cantilever supported on the mounting platform by a terminating support shank such that separate height adjustment of each limb may be made independent of the other limb, the shanks of the respective limbs being spaced from one another so that in the case of each limb, in at least one plane generally in the direction of walking, there is a compound roughly S-shaped curve such that the foot portion of each is a natural termination of the limb approaching the horizontal when worn and at rest in the standing position and having a broad portion simulating, respectively, a toe and front portion of a foot and the heel of the foot.

A leg and foot supplementing structure for supplementing during ambulation the feel and action of a human foot and leg comprising:

• a mounting platform for providing for connection to the leg of a human wearer;
• a pair of monolithic independent limbs, each of which simulates a part of the leg, independently extending to the mounting platform, part of one of which limbs simulates the toe and front part of the foot and part of the other of which simulates the heel of the foot, each of said limbs being composed of resilient spring material and being curved to deform under the weight and dynamic forces of body movement and each being separately cantilever supported on the mounting platform by separate terminating support shank such that separate height adjustment of each limb may be made independent of the other limb, the shanks being spaced apart from one another so that the foot portions cause each limb to respond independently to forces from the ground and react with different separated portions of the mounting platform with a feel to the wearer like that of a normal foot and leg.