Currently, agriculture in Korea is facing a manpower shortage due to a decrease in the population and an aging workforce. Involving disabled people in agriculture as a solution to the problem of manpower shortage in agriculture can help both farmers and people with disabilities. For this, it is necessary to develop agricultural tools that disabled people can use in agricultural activities. This study tried to design agricultural work equipment for the disabled by applying a design technique using a digital human body model. To this end, in this study, a human body model for the disabled was created using anthropometric data for the disabled. After that, the agricultural work simulation using human body models was used to identify the problems in agricultural work of the disabled, and design supplementation was performed to solve the problems. As a result, design dimensions such as the height of the farm work bench for the disabled, the length of the fruit harvester, the length of the sprayer, and the height of the starter switch were determined. This study has significance in that the digital human body model-based design method was applied to the design of agricultural work equipment for the disabled.

The mask-face interface design should consider the face shape to improve the half mask respirator's fit ratio. This study tried to design the mask-face interface using recent Korean face data. By using the data of 1536 men's 3D face scanning (Size Korea data), head clay mock-up was made and mask-face interface line was extracted from this head mock-up. Using this interface line, the half-mask prototype was made. According to the quantitative fitting test, the proposed mask was found to be well fitted (average fit-ratio > 100). The proposed method had two advantages. 1) The method could use massive head-related anthropometric data like Size Korea data. 2) The qualitative fit test (observation) could be conducted very quickly by fitting the prototype to the head mock-up. However, this method also had several limitations. 1) The head clay mock-up could be different according to the mock-up maker. 2) The average values of the head-related anthropometric data were used to make the head mock-up. Small and large size head mock-ups should be made and tested.