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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Wheelchair caster shimmy and turning resistance.
    Author: Kauzlarich JJ, Bruning T, Thacker JG.
    Journal: J Rehabil Res Dev; 1984 Jul; 21(2):15-29. PubMed ID: 6530672.
    Abstract:
    The equations for wheelchair caster wheel shimmy are presented along with experimental data. The report includes the theory and performance of single wheel casters for a variety of tires, and a new design for wheelchair casters using a grooved dual-tread tire or co-rotating caster wheels. The dual-tread tire was found to significantly inhibit caster shimmy. The turning resistance due to a grooved caster wheel tire with a 1/2-inch groove was found to be 10 percent greater than for an ungrooved caster wheel tire. The analysis includes the methodology and the results of experiments developed to measure the sliding friction turning moment of the wheelchair caster wheel. A number of commercial wheelchair caster wheels were tested and the results for shimmy are presented.
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