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http://dx.doi.org/10.12940/jfb.2017.21.4.116

Segmental Hard Shell Design of Knee Protector for Children Using 3D Printing  

Lee, Hyojeong (Research Institute of Human Ecology, Chungnam National University)
Lee, Yejin (Dept. of Clothing & Textiles, Chungnam National University)
Publication Information
Journal of Fashion Business / v.21, no.4, 2017 , pp. 116-126 More about this Journal
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.
Keywords
knee protector; segmental hard shell; 3D printing; 3D modeling; optimized fit;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Bethke, K. K. A. (2005). The second skin approach: Skin strain field analysis and mechanical counter pressure prototyping for advanced spacesuit design (Unpublished doctoral dissertation). Massachusetts Institute of Technology, Massachusetts, USA.
2 Braham, R. A., Finch, C. F., McIntosh, A., & McCrory, P. (2004). Community football players' attitudes towards protective equipment-a pre-season measure. British Journal of Sports Medicine, 38(4), 426-430.   DOI
3 Choi, J., & Hong, K. (2015). 3D skin length deformation of lower body during knee joint flexion for the practical application of functional sportswear. Applied Ergonomics, 48, 186-201.   DOI
4 Coblentz, A., Mollard, R., & Ignazi, G. (1991). Three-dimensional face shape analysis of French adults, and its application to the design of protective equipment. Ergonomics, 34(4), 497-517.   DOI
5 Dammacco, G., Turco, E., & Glogar, M. I. (2012). Design of protective clothing. Functional Protective Textiles, 1-32.
6 Gupta, D. (2011). Design and engineering of functional clothing. Indian Journal of Fibre & Textiles Research, 36, 327-335.
7 Hong, K., & Scheurell, D. M.. (1997). Development process of clothing and textiles product. Fiber Technology and Industry, 1(4). 481-487.
8 Jeong, H. Y. (2016). The current status of 3D printing use in fashion industry and utilization strategies for fashion design departments. Journal of the Korea Fashion & Costume Design Association, 18(3), 245-260.
9 Kim, H. Y. (2016). A research for the development of millineries using 3D printing - Designs based on the transformation of ribbon. Journal of the Korean Society of Fashion Design, 16(3), 29-45.   DOI
10 Kim, J. H., & Kim, H. S. (2015). Designing of protector utilizing 3D body scanning. Design Forum, 18, 227-236.
11 Kim, S., & Nam, Y. (2016). A study on the classification of lower body shape type for fit evaluation of slacks. Journal of Fashion Business, 20(2), 181-196.   DOI
12 Lee, B. (2015). Patent trend analysis in 3D printing. Prospectives of Industrial Chemistry, 18(1), 45-49.
13 Lee, H., Eom, R. I., & Lee, Y. (2015). 3D modeling of safety leg guards considering skin deformation and shape, Korean Journal of Human Ecology, 24(4), 555-569.   DOI
14 Lee, H. J., Kim, N. Y., Hong, K., & Lee, Y. (2015). Selection and design of functional area of compression garment for improvement in knee protection. Korean Journal of Human Ecoology, 24(1), 97-109.   DOI
15 Lee, H., & Lee, Y. (2016). Design characteristics and fit evaluation of sport protective gear. Korean Journal of Human Ecology, 25(6), 787-800.   DOI
16 Lee, H., Eom, R., & Lee, Y. (2016). Development of ergonomic leg guard for baseball catchers through 3D modeling and printing. Journal of Fashion Business, 20(3), 17-29.
17 Sohn, B. & Kweon, S. (2016). Development of a semi-automatic protocol for embodiment of a desirable 3D breast shape and deployment of bra cup pattern. Journal of Fashion Business, 20(4), 189-206.   DOI
18 Paquette, S. (1996). 3D scanning in apparel design and human engineering. IEEE Computer Graphics and Applications, 16(5), 11-15.   DOI
19 Quinn, E. M., & Bradley, C. P. (2012). Injury prevention in camogie: Current trends in the use of protective equipment. European Journal of Sport Science, 12(2), 185-192.   DOI
20 Watkins, S. M. (2003). Clothing environment (Choi, H. Trans.). Seoul: Ewha Womans University Press. (Original work published 1995).