Laboratory for Intelligent CAD Systems, Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia.
Appl Ergon. 2014 Jul;45(4):943-54. doi: 10.1016/j.apergo.2013.11.011. Epub 2013 Dec 14.
Most authors have provided diameter recommendations for cylindrical handle design in order to increase performance, avoid discomfort, and reduce the risk of cumulative trauma disorders. None of the studies has investigated the importance of determining the correct handle shape on the subjective comfort ratings, which could further improve the handles' ergonomics. Therefore, new methods based on a virtual hand model in its optimal power grasp posture have been developed in order to obtain customised handles with best fits for targeted subjects. Cylindrical and anatomically shaped handles were evaluated covering ten subjects by means of an extensive subjective comfort questionnaire. The results suggest large impact of the handle shape on the perceived subjective comfort ratings. Anatomically shaped handles were rated as being considerably more comfortable than cylindrical handles for almost all the subjective comfort predictors. They showed that handle shapes based on optimal power grasp postures can improve subjective comfort ratings, thus maximising performance. Future research should consider real conditions, since the comfort ratings can vary based on the specific task and by the tool selected for the task.
大多数作者都为圆柱形手柄的设计提供了直径建议，以提高性能、避免不适和降低累积性创伤疾病的风险。但没有研究调查确定正确的手柄形状对主观舒适度评分的重要性，这可以进一步提高手柄的人体工程学设计。因此，基于虚拟手模型的最优动力抓取姿势，已经开发出了新的方法，以获得针对特定对象的最佳贴合的定制手柄。通过广泛的主观舒适度问卷，评估了十个受试者的圆柱形和解剖形状的手柄。结果表明，手柄形状对感知到的主观舒适度评分有很大影响。解剖形状的手柄在几乎所有主观舒适度预测因素方面都被评为比圆柱形手柄舒适得多。研究表明，基于最佳动力抓取姿势的手柄形状可以提高主观舒适度评分，从而最大限度地提高性能。未来的研究应考虑实际情况，因为舒适度评分可能会根据特定任务和所选工具而有所不同。
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