A Foldable 3-DOF Parallel Mechanism With Application to a Flat-Panel TV Mounting Device

• Published in: IEEE transactions on robotics Vol. 25; no. 5; pp. 1214 - 1221
• Main Authors: CHUNG, Jaeheon, YI, Byung-Ju, OH, Sung
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.10.2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Actuators; Applied sciences; Computer science; control theory; systems; Control theory. Systems; Couplings; Devices; Drives; Effectiveness; Endoscopes; Exact sciences and technology; Flat panels; Foldable parallel robot; Industrial training; Kinematics; Leg; Linkage mechanisms, cams; Mechanical engineering. Machine design; mechanism design; Mounting; mounting device; Parallel robots; Performance analysis; Robotics; Television; Testing; Translations; Walls; Dimensioning; Mechanism synthesis; Four bar mechanism; Kinematics; Linkage mechanism; Parallel mechanism; Foldable parallel robot; mechanism design; System with three degrees of freedom; mounting device; Modeling; Actuator
• ISSN: 1552-3098; 1941-0468
• DOI: 10.1109/TRO.2009.2026501

This paper deals with a new 3-degree-of-freedom (DOF) parallel mechanism for a flat-panel TV mounting device with two rotations and one translation. The most important operational requirements of this device are that it should support the heavy weight of the flat-panel TV and should be foldable to save space between the flat panel and the wall. An asymmetric parallel structure that has three kinematic chains with internal four-bar linkage is proposed to meet such requirements. Kinematic modeling was performed along with actuator sizing. Finally, the mechanism was developed and tested to show its effectiveness as a flat-panel TV mounting device.