Patent ID: 6568869
Filing Date: 2003-05-27
Classification: A63H,B25J,B62D,F16C,Y10T

Abstract:
A three-dimensional universal unit for movable structures comprising:first and second coupling members, each of which comprises two opposing side surface parts, an end face part connected to form a right angle with one end face of each side surface part, a coupling/uncoupling device provided on the two side surface parts and end surface part of the first coupling member, the coupling/uncoupling device including a shape memory alloy spring for coupling and uncoupling the first and second coupling members, a permanent magnet provided on the two side surface parts and end face part of the second coupling member, and a linking part disposed between the two side surface parts of each coupling member; a linking member that rotatably links the linking parts of the two coupling members; and a drive apparatus that rotationally drives the coupling members relative to the linking member.