Material or article handling – Vertically swinging load support – Grab
Reexamination Certificate
2008-05-06
2008-05-06
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Grab
C074S490040, C901S021000
Reexamination Certificate
active
11656425
ABSTRACT:
The present invention provides parallel, cable based robotic manipulators, for use in different applications such as ultra high-speed robots or positioning devices with between three to six degrees of freedom. The manipulators provide more options for the number of degrees of freedom and also more simplicity compared to the current cable-based robots. The general structure of these manipulators includes a base platform, a moving platform or end effector, an extensible or telescoping central post connecting the base to moving platform to apply a pushing force to the platforms. The central post can apply the force by an actuator (active), or spring or air pressure (passive) using telescoping cylinders. The robotic manipulators use a combination of active and passive tensile (cable) members, and collapsible and rigid links to maximize the benefits of both pure cable and conventional parallel mechanisms. Different embodiments of the robotic manipulators use either active cables only, passive cables only, or combinations of active and passive cables. An active cable is one whose length is varied by means of a winch. A passive cable is one whose length is constant and which is used to provide a mechanical constraint. These mechanisms reduce the moving inertia significantly to enhance the operational speed of the robots. They also provide a simpler, more cost effective way to manufacture parallel mechanisms for use in robotic applications.
REFERENCES:
patent: 3286851 (1966-11-01), Sperg
patent: 3497083 (1970-02-01), Anderson
patent: 3631737 (1972-01-01), Wells
patent: 4666362 (1987-05-01), Landsberger et al.
patent: 4683773 (1987-08-01), Diamond
patent: 4976582 (1990-12-01), Clavel
patent: 5046375 (1991-09-01), Salisbury et al.
patent: 5313854 (1994-05-01), Akeel
patent: 5333514 (1994-08-01), Toyama et al.
patent: 5967729 (1999-10-01), Foes
patent: 11077577 (1999-06-01), None
Maeda, K. et al., “On Design of a redundant Wire-Driven Parallel robot WARP Manipulator”, Proceedings of the 1999 IEEE International Conference on Robotics & Automation, May 1999, pp. 895-900.
“Delta, a Fast Robot with Parallel Geometry”, R. Clavel, Proc, Int. Symposium on Industrial robots, Apr. 1988, pp. 91-100.
“Kinematics of a Three-DOF Platform with Three Extensible Limbs”, Lung-Wen Tsai, Recent Advances in Robot Kinematics, pp. 401-409.
“A Smart Kinestatic Interactive Platform”, M. Griffis et al., Advances in Robot Kinematics and Computationed Geometry, pp. 459-464.
“Development of an Ultrahigh speed Robot FALCON using Wire Drive System”, S. Kawamura et al., IEEE International Conference on Robotics and Automation 1995, pp. 215-220.
Behzadipour Saeed
Chan Edmon
Dekker Robert
Khajepour Amir
Hill & Schumacher
Schumacher Lynn C.
Underwood Donald
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