In biomechanical engineering, gravity balancers are often used in orthoses carrying the weight of paralyzed limbs. In these applications, simplicity is an insuperable demand. However, known gravity balancers do not combine simplicity with perfect balance. This paper describes several gravity equilibrators providing perfect static balance. As opposed to many known solutions, the proposed balancers incorporate normal off-the-shelf springs, rather than the zero-free-length springs (springs with a length equal to zero when not preloaded or loaded externally) usually employed. The conceptional synthesis is presented, dimensional design criteria are derived, and prototypes are shown. Based on the prototype's working principle, an ankle prosthesis, which stabilizes the patient, will be developed.
|Title of host publication||Proceedings of DETC'01|
|Subtitle of host publication||ASME 2001 Design Engineering Technical Conferences and Computers and Information in Engineering Conference|
|Place of Publication||Pittsburgh, PA, USA|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Number of pages||8|
|Publication status||Published - 9 Sep 2001|
|Event||ASME 2001 Design Engineering Technical Conferences and Computers & Information in Engineering Conference, DETC 2001 - Pittsburgh, United States|
Duration: 9 Sep 2001 → 12 Sep 2001
|Conference||ASME 2001 Design Engineering Technical Conferences and Computers & Information in Engineering Conference, DETC 2001|
|Period||9/09/01 → 12/09/01|
te Riele, F. L. S., & Herder, J. L. (2001). Perfect static balance with normal springs. In Proceedings of DETC'01: ASME 2001 Design Engineering Technical Conferences and Computers and Information in Engineering Conference (pp. 1-8). Pittsburgh, PA, USA: American Society of Mechanical Engineers (ASME).