Artificial hand and digit therefor

Details Artificial hand and digit therefor Artificial hand and digit therefor

1990-02-22

1993-04-06

Ip, Paul

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

31856821, 901 33, 901 36, 901 39, B25J 1508

Patent

active

052006794

ABSTRACT:
A robotic hand, claw manipulator or a prosthetic device includes plural artificial digits, each having a guide and plural phalanges. First and second cables have a first end fixedly connected to spaced first and second points on a digit distal tip, respectively, and a second end driven by a reversible motor. The cables are positioned and connected to the reversible motor, the two points and a guide arrangement so that in response to the motor being activated in a first direction the first cable exerts a tensile force on the first point and a compressive force on elements of the guide arrangement to cause one of the phalanges to be urged from a bent position toward a straight position and in response to the motor being activated in a second direction the second cable exerts a tensile force on the second point and a compressive force on elements of guide arrangement to cause the phalanx to be urged away from the straight position.

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