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2인 인력물자취급작업시, 중대형제품을 고려한 양각 그립형태의 패키지 가이드라인 개발
나상균(Sang Kyun Na),반기민(Kimin Ban),임영재(Youngjae Im),최재호(Jaeho Choe),정의승(Eui S. Jun) 대한인간공학회 2018 大韓人間工學會誌 Vol.37 No.3
Objective: This study is for the mobility efficiency of the two-person workforce handling. It is used to derive the optimal grip range for each type of product. Background: With the growing size of consumer electronics products, the handling of human resources is causing musculoskeletal disorders (MSDs) of workers. Previous studies have focused on the effects on the Maximal Acceptable Weight of Load or the ergonomic pressures that are applied to the lumbar spine. However, studies are lacking on design variables that could minimize the workload. This study has produced design variables for PUIs that can minimize the workload of workers over 50kg or 100kg who are actually Manual materials handling (MMH) in environment. Determine the significance, interaction, and significance of design variables to increase the efficiency of product movement. Based on this, the optimal grip range is derived based on the size of each type of product. Method: First, it will derive three representative sizes for the large and medium sized products that are released on the market. Based on this, the 1st research the dimensions of the product type, the grip type, the grip height, the grip length the importance of the design variables. Conduct a discomfort test with stair climbing task. In the 2nd research, the level of design variables is divided to derive the optimal range of grips according to the user-specific design variables. Conduct a discomfort test with level movement tesk and stair climbing task. Results: The priority of PUI variables is given by the grip length, grip type, grip height, and size, depending on the behind user. And Design variable"s which are revealed lowest discomfort are grip height 600~800mm, grip length 300~500mm in level movement tesk and grip height 200mm, grip length 300~500mm in stair climbing task. Conclusion: This study evaluates the user"s discomfort with dynamic task. Based on the results of the study, the optimal grip range guidelines for sizes for each type of product are grip height 600~800mm, and grip length 300~500mm and grip height 200mm, grip length 300~500mm in stair climbing task. Application: This study is expected to be used as basic data for designing Manual materials handling (MMH), Especially Heavy electronics products. It is also applicable to MMH related product movement and manufacturing industry.
박기범(Kibum Park),반기민(Kimin Ban),정의승(Eui S. Jung),임영재(Youngjae Im) 대한인간공학회 2018 大韓人間工學會誌 Vol.37 No.6
Objective: The aim of this study is to provide classification of the areas in the Driver"s windshield that will enhance your intuitive understanding. Background: Self-driving vehicles are emerging as a result of technological advances, and the range of human behavior is expanding. The collateral information on driving is increasing, and HUD is coupled with an augmented reality to convey information to the driver. Interference between the actual driving environment and the displayed information can cause distraction. Research is required to find out that which areas in driver"s WS are optimum, preferred and restricted to be displayed when displaying information. Method: Proceeding a test for 9 areas, which is carried out as a classification and grouping of the relevant factors in existing HUD researches, on driver"s side WS. The number of 18 participants have been acted LCT with driving simulator, and being measured by completion time and MCH handling quality. Results: In the intuitive perspective the vertically middle areas were the dominant positions all the time. Also the traffic congestion and participant"s state had affected on the interaction to areas. Conclusion: There are many legal regulations locating the HUD area to the middle on the WS, so this study proposed a secondary solution suggest and designated the worst area on considering LOA. For preparing new era of autonomous car industry, this study proposes the initial classification of the HUD location on driving. Application: Moreover, the purpose of this study is being the basis of the study that founds the groups of the optimum, preferred, restricted HUD areas for the near future with Autonomous Driving.
불편도를 고려한 귀걸이 형 웨어러블 디바이스 가이드라인 개발
김진영(Jinyoung Kim),반기민(Kimin Ban),임영재(Youngjae Im),정의승(Eui S. Jung) 대한인간공학회 2017 大韓人間工學會誌 Vol.36 No.6
Objective: This study aims to discover Priority of Hook type Wearable Device’s PUI variabels and derive Hook related variables’ specification by conducting objective measure. Background: With rapid increasing interest of Health-care Services and ICT technology, the research of Wearable Devices for Sport are becoming main concern. However, Most research of wearable devices are conducted in Economic aspects. And, Hook Type Wearable devices are stay in close to ears but there is not enough studies which are concerning ear characteristic. We need research of discover priority between Hook type wearable device’s PUI variables and PUI Guideline which lower discomfort. Method: First, in 1st research, Research of market’s Hook type Wearable Devices’ PUI Specification. Next, Derive PUI variables and Prototypes with Orthogonal Design. And conduct a discomfort test with dynamic task. Second, in 2nd research, Derive Hook related PUI variables and Prototypes with Full Factorial Design. Conduct a discomfort test with dynamic task. Results: The PUI variables’ priority is revealed as Padwidth, Outerwidth, Innerwidth, Upperlength, Lowerwidth, Lowerlength, Paddepth. And PUI variable’s which are revealed lowest discomfort are 28mm width, 34mm Upperlength and 3 R value. Conclusion: This study evaluates the discomfort in Dynamic Task that affects the feel of Dynamic environment. Based on study results, a guideline for Hook type Wearable Devices is 28mm Width, 34mm Upperlength and 3 R value. Application: This study is expected to be used as basic data for designing Wearable Devices, as well as Hardware in the industries which are related to ear.