Muralidhar A, Bishu R R, Hallbeck M S
Department of Industrial and Management Systems Engineering, University of Nebraska-Lincoln, 68588-0518, USA.
Appl Ergon. 1999 Dec;30(6):555-63. doi: 10.1016/s0003-6870(99)00005-8.
The primary intent of this study was to determine if a hand glove could be designed on a criterion of selective protection. Force distribution patterns on the palmar side of hand were obtained from various studies to develop zones of hand that needed protection. A new design for gloves was developed based on the principle of selective protection, where protective material is introduced in varying levels over different parts of the glove, in order to provide protection where it is most needed, and at the same time preserve the desirable dexterity and strength capabilities of the barehand, optimizing the trade-off between protection and performance. Two pairs of prototype gloves incorporating different levels of protection were fabricated and tested using a battery of performance tests and an algometer test for pressure sensitivity. The test battery comprising four dexterity tasks and a maximal voluntary grip strength task was used to assess a number of glove conditions, including the two prototype gloves developed. The results indicate that the performance of the prototype gloves are comparable, and that the performance times for the double glove and the two prototype gloves tested were not significantly different. For the grip strength, the two prototype gloves were better than the double glove. The assembly task performance for the prototype II (laminar glove) was significantly lower than that of the other glove types tested. It appears that gloves of variable thickness can be developed to afford adequate protection at zones of most need. Glove manufacturers are recommended to use an ergonomic approach in the design of gloves. Such an approach, besides protecting the safety objective of gloves, could enhance productivity considerably.
本研究的主要目的是确定是否可以基于选择性保护标准设计一种手套。通过各种研究获取了手掌侧的力分布模式，以确定手部需要保护的区域。基于选择性保护原理开发了一种新手套设计，即在手套的不同部位以不同程度引入保护材料，以便在最需要的地方提供保护，同时保持徒手所需的灵活性和力量，优化保护与性能之间的权衡。制作了两双具有不同保护水平的原型手套，并使用一系列性能测试和压力敏感性测力计测试进行了测试。该测试组包括四项灵活性任务和一项最大自主握力任务，用于评估多种手套情况，包括所开发的两双原型手套。结果表明，原型手套的性能相当，测试的双层手套和两双原型手套的性能时间没有显著差异。对于握力，两双原型手套优于双层手套。原型II（分层手套）的组装任务性能明显低于测试的其他手套类型。似乎可以开发出厚度可变的手套，在最需要的区域提供足够的保护。建议手套制造商在手套设计中采用人体工程学方法。这种方法除了能实现手套的安全目标外，还能显著提高生产力。
