Journal of the Ergonomics Society of Korea (대한인간공학회지)

Ergonomics Society of Korea (대한인간공학회)
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Optimal Embossed Grip Range of Manual Materials Handling during Two-person Team Lifting

2인 인력물자취급작업시, 중대형제품을 고려한 양각 그립형태의 패키지 가이드라인 개발

  • Na, Sang Kyun (Korea University, School of Industria and Management Engineering) ;
  • Ban, Kimin (Korea University, School of Industria and Management Engineering) ;
  • Im, Youngjae (Dong-eui University, Division of Design Engineering) ;
  • Choe, Jaeho (Daejin University, Department of Industrial Management Engineering) ;
  • Jung, Eui S. (Korea University, School of Industria and Management Engineering)
  • 나상균 (고려대학교 산업공학과) ;
  • 반기민 (고려대학교 산업공학과) ;
  • 임영재 (동의대학교 디자인공학부) ;
  • 최재호 (대진대학교 산업공학과) ;
  • 정의승 (고려대학교 산업공학과)
  • Received : 2018.05.08
  • Accepted : 2018.06.02
  • Published : 2018.06.30
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Abstract

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.

Keywords

References

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