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Design and Control of Seat Mechanism for Multi-postures Controllable Wheelchair

  • Bae, Ju-Hwan (Department of Mechatronics Engineering, Dong-Eui Univ.) ;
  • Kim, Gyu-Seok (Korea Orthopedics & Rehabilitation Engineering Center, KOREC) ;
  • Ryu, Je-Cheong (Korea Orthopedics & Rehabilitation Engineering Center, KOREC) ;
  • Moon, In-Hyuk (Department of Mechatronics Engineering, Dong-Eui Univ.)
  • 투고 : 2009.10.20
  • 심사 : 2010.03.09
  • 발행 : 2010.05.01

초록

This paper presents a design of seat mechanism for multi-postures controllable wheelchair. The possible seat postures are reclining, tilting, standing, which are controlled by four seat mechanisms using four linear actuators. The seat mechanisms designed in this study are reclining, tilting, forward-tilting, and elevation mechanism. Three postures except standing are controlled by corresponding mechanisms, but the standing posture is performed by combination of the reclining and the forward-tilting mechanism. Posture control system is composed of PID controllers and a planner to determine a feasible posture based on a posture transition diagram. Simulation results show that the seat mechanism and its control system are applicable to a multi-postures controllable wheelchair.

키워드

참고문헌

  1. ISO 9999, "Assistive products for persons with disability-Classification and terminology," 2007.
  2. Shaw, C. G. and Taylor, S. J., "A Survey of Wheelchair Seating Problems of the Institutionalized Elderly," Assistive Technology, Vol. 3, No. 1, pp. 5-10, 1992.
  3. Ham, R., Aldersea, P. and Porter, D., "Wheelchair Users and Postural Seating," Churchill Livingstone, p. 217, 1998.
  4. Dicianno, B. E., Margaria, E., Arva, J., Lieberman, M. J., Schmeler, M. R. and Lipka, D., "RESNA Position on the Application of Tilt, Recline, and Elevating Legrests for Wheelchair," Rehabilitation Engineering & Assistive Technology Society of North America, pp. 6-7, 2005.
  5. Shileds, R. K. and Cook, T. M., "Effect of seat angle and lumbar support on seated buttock pressure," Phys. Ther., Vol. 68, No. 11, pp. 1682-1686, 1988. https://doi.org/10.1093/ptj/68.11.1682
  6. Aissaoui, R., Lacoste, M. and Dansereau, J., "Analysis of sliding and pressure distribution during a repositioning of persons in a simulator chair," IEEE Trans. on Neural Systems and Rehab. Eng., Vol. 9, No. 2, pp. 215-224, 2001. https://doi.org/10.1109/7333.928581
  7. Brattgard, S. O., Lendstrom, I., Severinsson, K. and Wihk, L., "Wheelchair design and quality," Scandinavian Journal of Rehabilitation Medicine (Supplement), Vol. 9, pp. 15-19, 1983.
  8. Leonard, J. A. Jr., Esquenazi, A., Fisher, S. V., Hicks, J. E., Meier, R. H. 3rd. and Nelson, V. S., "Prosthetics, orthotics, and assistive devices. 1. General concepts," Arch. of Phys. Med. and Rehab., Vol. 70, No. 5-S, pp. 195-201, 1989. https://doi.org/10.1016/0003-9993(89)90030-0
  9. Arva, J., Paleg, G., Lange, M., Lieverman, J., Schmeler, M., Diciano, B. and Babinec, M., RESNA Position on the Application of Wheelchair Standing Devices, Rehabilitation Engineering & Assistive Technology Society of North America, pp. 1-8, 2007.
  10. Arva, J., Schmeler, M., Lange, M. and Lipka, D., RESNA Position on the Application of Seat-Elevating Devices for Wheelchair Users. Arlington, VA: Rehabilitation Engineering & Assistive Technology Society of North America, 2005.
  11. Weant, M. and Schwartz, A., "Stand-up Wheelchair," United States Patent, No. 3807795, 1974.
  12. Mashuda, D., "Mechanized Wheelchair," United States Patent, No. 3964786, 1976.
  13. Fogg, K., "Stand-aid Invalid Wheelchair," United States Patent, No. 4119164, 1978.
  14. Kuiken, A., "Manually Operable Standing Wheelchair," United States Patent, No. 6976698, 2005.
  15. Perk, H., "Stand-up wheelchair," United States Patent, No. 7417176 B2, 2008.
  16. Perry, E., "Power Stand-up and Reclining wheelchair," United States Patent, No. 5366036, 1994.
  17. Huang, A. and Chu, S., "Seat Reclining Mechanism for Power Wheelchair," United States Patent, No. 7585019 B2, 2009.
  18. Bae, J.-W., Kim, G.-S., Joo, H.-S., Ryu, J.-C., Lee, M.-J. and Moon, I., "Analysis of Wheelchair Kinematics for Control of Multi-Postures," Proc. of IEEK Fall Conference, Vol. 2, pp. 927-928, 2007.
  19. Keegan, J. J., "Alterations of the Lumbar Curve Related to Posture and Seating," J. Bone Joint Surg. Am., Vol. 35, No. 3, pp. 589-603, 1953. https://doi.org/10.2106/00004623-195335030-00007