Ergonomic Risk and Safety Assessment of Typical Household Products

Abstract

According to the date of Chinese children, such as the physical and psychological characteristics, preferences of them, and user needs of them. Based on the functional characteristics of typical children’s furniture products currently on the market in China, as well as the availability and use safety problems during using it, researching typical and the ergonomic risks of furniture products. In order to provide basic method guidance for improving and enhancing the safety of the use of furniture products in China. The research products including the children’s bunk beds, children’s tables and chairs, and children’s wardrobes. This research uses theoretical analysis, literature survey, human-computer interaction behavior analysis, and market research to study the structural and functional characteristics and target users of typical furniture products. During the investigation, it was found that the reasons for the existence of high-risk children’s furniture in the market are mostly related to their safety dimensions, such as the relevant dimensions of children’s bunk beds, including the height of the safety fence, the width of the ladder, the width of the pedal, etc., using the comfort analysis in the Jack simulation software and force analysis, we found that when a minor climbs into bed, the pedal width is too narrow and the ladder distance is too large, it will cause significant discomfort to the minor, and it is very easy to cause a fall accident, and the height of the safety fence is too low which will even cause a fall accident. In the investigation, I found that the frequency and frequency of falling accidents on and off the bed has become one of the important reasons for minor injuries across the country. Based on this phenomenon, we use the means of usability testing, simulation analysis, physical testing, theoretical analysis, data statistics, and user experience evaluation to study the main safety influencing factors of minors in the use of furniture products and guidelines for improving the use of safety. Preliminary establish the target user characteristic parameters of furniture products and functional unit parameters of furniture products. Based on this, the methods of human-computer interaction analysis and simulation are used to study the main safety influencing factors of the target user in the use of furniture products and the improvement directions to improve the safety level of use, and determine the safe size range suitable for minors at various stages. And finally form a guide for prevention and evaluation of various ergonomic risk indicators. Provides evaluation basis and reference for the safety and experience of furniture products during use it.