A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
A63B 29/00 (2006.01) A63B 25/08 (2006.01) B25J 9/00 (2006.01)
Patent
CA 2063255
A self-actuated spring-action human bipedal device includes a back-mounted frame att- ached to the upper torso of a user, and separate articulated right and left leg frames pivotally attached by U-joints to lower portions of the back frame. The user's feet are secured to the leg frames so that the bottoms of the leg frames contact the ground, rather than the user's feet, be- hind the point where each foot is attached to its leg frame. A spring actuator is carried on the back frame, and endless cord-like main springs are engaged with the spring actuator. Left and right tension lines running from the left and right leg frames to the spring actuator are arranged so that compression of the leg frames, cause by the force of downward movement of the user's feet and torso, acting on the ground, pulls on the tension lines to apply a pulling force to the spring actuator for stretching the main springs. The tension lines are also each attached to a part of the leg frame which engages on the user's foot so that extension of the user's leg pulls on the tension lines, also stretching the main springs. The energy stored in the stretched main springs is then transferred back to the torso of the user and to the user's feet to cause the user to jump into the air by a distance above the ground approximately proportional to the amount of compression of the leg frame and the amount of stretch transferred to the main springs. Sepa- rate pick-up springs connected to each leg frame keep the tension lines under positive tension so that tension on each leg frame will not go slack and will apply a pick-up force to the leg frame to raise it and prevent foot dragging to simulate a natural walking gait.
Dick John G.
Edwards Eric A.
Applied Motion International Trust
Fetherstonhaugh & Co.
LandOfFree
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