Journal of Fashion Business (패션비즈니스)

The Korean Society of Fashion Business (한국패션비즈니스학회)
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Segmental Hard Shell Design of Knee Protector for Children Using 3D Printing

3차원 프린팅을 이용한 어린이용 무릎보호대의 분절형 하드쉘 설계

  • Lee, Hyojeong (Research Institute of Human Ecology, Chungnam National University) ;
  • Lee, Yejin (Dept. of Clothing & Textiles, Chungnam National University)
  • Received : 2017.07.31
  • Accepted : 2017.09.18
  • Published : 2017.09.30
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Abstract

This study applied a segmented hard shell design on knee protectors for children with the objective of increasing mobility. The prototype of the hard shell that does not correspond to movement of the body among components of the knee protector was developed. Surface modeling was conducted based on 3D knee data to enhance comfort through optimized fit on the knee joint where the hard shell would be worn. For this, previous studies on changes in skin near the knee joint during knee flexion were reviewed to establish basic segmental lines. The basic design included six segments, and the number of segments was used as the design variable by increasing or decreasing it to 0, 3, 6, 9, and 14 segments. A prototype was produced from 3D printing with TPU material, worn for wearing assessment. Results revealed fewer numbers of segments resulting in less fit with the body, while actual appearance was stable. Meanwhile, the number of proper segments improved better fit with the body during movement. The wearing assessment revealed the amount of gap reflects change in skin length depending on movement. Assessment results demonstrated basic segment design, S6 with 6 segments, had the best design and most optimized fit. Findings in this study can provide key data for designing knee protection products for children.

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References

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