• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Ergonomics Congress; 20011211-20011214; Mumbai; IN >Ergonomic Criteria for Designing a Visual Display Terminal Workstation for Bifocal Operator
【24h】

Ergonomic Criteria for Designing a Visual Display Terminal Workstation for Bifocal Operator

机译：为双焦点操作员设计视觉显示终端工作站的人体工程学标准

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The introduction of Visual Display terminals (VDT) in offices has further limited the number of postures permitted to the clerical employees in traditional office work. National Institute for Occupational Safety and Health (1981) suggests that operator in VDT jobs that are characterized by high pressure to perform and low control over the task, report, more visual and muscular discomfort then do operator whose job allow greater autonomy and flexibility. VDT's are often designed and introduced into offices without the application of relevant human factors designed principles. The user is completely overlooked and computers are placed on conventional office furniture formerly used. Operators are often required to work in cramped spaces that leave them little room to place document holder or manuscript in position. Operators in such situation are likely to experience visual discomfort, muscular discomfort and fatigue. The situation is still worst for older workers, because of visual changes such as presbyopia and increased glare susceptibility; they also become quite vulnerable to problems of poor workstation design. The optical correction for near work routinely provided for bifocal spects bearer is not appropriate for the distance at which VDT screen is normally visualized. In order to view the screen, the worker with bifocal spects, must tilt his or her head backwards to look through the bottom part of the spects. More than six per cent of the total body weight is concentrated in the head; and if head is bent backward sufficiently to bring the eyes into the required viewing position, the static activity of neck muscles required to hold it in place leads to fatigue and strain. Continuous bending of head on the backside also causes stress on the vertebral column ultimately leading to "spondilysis". This necessitates a through analysis of existing VDT station so that a proper VDT work station can be developed which will be appropriate and natural for man-machine-environment system and which will also allow comfortable posture and greater efficiency by the human being. This study proposes to redesign the VDT workstation for bifocal operators considering the physical, biomechanical, physiological and psychological limits in conjunction with VDT keyboard, source document along with working environment. The purpose of the study is to perform an in-depth ergonomic evaluation of visual display terminal workstation for the people wearing bifocal lenses and to fulfil the following objectives: 1. Evaluation of the present working posture adopted by bifocal people while working on computer. 2. Evaluation of existing VDT workstation on the basis of different body dimensional and biomechanical requirements along with comfort ability and ease of operation of the VDU operator. 3. Find out criteria for redesigning of computer workstation for bifocal people.
机译：在办公室中引入视觉显示终端（VDT）进一步限制了传统办公室工作中允许文职员工使用的姿势数量。美国国家职业安全与健康研究所（1981）建议，从事VDT工作的操作员的特点是执行压力大，对任务的控制程度低，报告，视觉和肌肉上的不适感强，而其工作允许更大的自主性和灵活性。 VDT通常是在不采用相关人为因素设计原则的情况下设计并引入办公室的。用户被完全忽视，计算机被放置在以前使用的常规办公家具上。通常要求操作员在狭窄的空间内工作，以使他们几乎没有空间放置文件架或原稿。在这种情况下，操作者可能会感到视觉不适，肌肉不适和疲劳。对于老工人来说，情况仍然最糟糕，因为老花眼和眩光敏感度等视觉变化；它们也很容易受到不良工作站设计问题的困扰。通常为双焦点斑点载体提供的近距离工作的光学校正不适用于正常可视化VDT屏幕的距离。为了观看屏幕，有双焦点斑点的工人必须向后倾斜头部才能看透斑点的底部。体重的百分之六成多集中在头部。如果头部向后弯曲得足以使眼睛进入所需的观看位置，则将其固定在位所需的颈部肌肉的静态活动会导致疲劳和劳损。头部在背面的连续弯曲也会在椎骨柱上产生应力，最终导致“椎骨溶解”。这就需要对现有的VDT工作站进行透彻的分析，以便可以开发出合适的VDT工作站，该工作站对于人机环境系统而言将是适当且自然的，并且还可以使人感到舒适的姿势和更高的效率。这项研究建议结合VDT键盘，原始文档以及工作环境，考虑物理，生物力学，生理和心理限制，为双焦点操作员重新设计VDT工作站。该研究的目的是对戴双焦点眼镜的人进行视觉显示终端工作站的深入人体工程学评估，并实现以下目标：1.评估双焦点人在计算机上工作时当前的工作姿势。 2.根据不同的身体尺寸和生物力学要求，以及VDU操作员的舒适性和易操作性，对现有VDT工作站进行评估。 3.找出为双焦点人士重新设计计算机工作站的标准。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号