The purpose of this study is to provide a novel approach to tool handle design and development based on measurements of hand shape using a contour gauge. In general, traditional design techniques, designing based on anthropometric data, and derived mathematical models do not incorporate enough subject data to design a customized product. First, anthropometric measurements on the right hand of 60 participants were collected with a contour gauge to manufacture matching handles. A curved handle fitting the human hand was constructed with common computer‐aided design software, and cylindrical handles and elliptical handles were added for comparison. All of the handles were used to record the participants' grip force to evaluate the operating efficiency of the handles. Finally, the participants completed a comfort‐rating questionnaire. The results show that contours based on the hand provided the highest operating performance and the best overall comfort‐rating compared to cylindrical handles and elliptical cylindrical handles. The newly developed handles in the grip force tasks have the highest push performance and the best comfort ratings compared to traditional cylindrical and elliptical handles. The developed handles could provide the hand tool industry information on developing and manufacturing many other similar handle designs (such as those for saws and electric screwdrivers).

中文翻译：

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手动工具的尺寸和形状的确定基于轮廓测量仪的手动测量

这项研究的目的是基于使用轮廓规测量手形来提供一种新颖的工具手柄设计和开发方法。通常，传统的设计技术，基于人体测量数据的设计以及派生的数学模型不能将足够的主题数据纳入设计定制产品中。首先，用轮廓仪收集了60名参与者右手的人体测量数据，以制造匹配的手柄。使用通用的计算机辅助设计软件构造了适合人手的弯曲手柄，并添加了圆柱形手柄和椭圆形手柄进行比较。所有手柄均用于记录参与者的握力，以评估手柄的操作效率。最后，参与者完成了舒适度评估问卷。结果表明，与圆柱形手柄和椭圆形圆柱形手柄相比，基于手部的轮廓具有最高的操作性能和最佳的总体舒适度。与传统的圆柱形和椭圆形手柄相比，在抓力任务中新开发的手柄具有最高的推动性能和最佳的舒适度等级。开发的手柄可以为手工工具行业提供有关开发和制造许多其他类似手柄设计（例如用于锯和电动螺丝刀的设计）的信息。与传统的圆柱形和椭圆形手柄相比，在抓力任务中新开发的手柄具有最高的推动性能和最佳的舒适度等级。开发的手柄可以为手工工具行业提供有关开发和制造许多其他类似手柄设计（例如用于锯和电动螺丝刀的设计）的信息。与传统的圆柱形和椭圆形手柄相比，在抓力任务中新开发的手柄具有最高的推动性能和最佳的舒适度等级。开发的手柄可以为手工工具行业提供有关开发和制造许多其他类似手柄设计（例如用于锯和电动螺丝刀的设计）的信息。