A Study on the Snap-Fit Locking Feature

스냅 핏 잠금 형상에 관한 연구

  • Published : 2006.12.15

Abstract

Snap-fit is being used in manufacture of plastic products. Integral features using snap-fit are classified as locks, locators and enhancements. Locking features complete the process of attachment by providing physical interference to prevent separation. Looking feature pairs consist of two components, i.e., a flexible latch and a rigid catch and require particular care and attention for their selection. We can make several locking feature pairs by selecting latch and catch, but some parts restrict freedom of selection. Therefore, part designers must know the characteristic properties of generic locking feature forms as considering a specific design problem. In this paper, it has been presented about problem of small size products using locking feature and then introduced new locking feature applicable to small parts.

Keywords

References

  1. Messler, R. W. Jr., 1993, Joining of Advanced Materials, Butterworth-Heinemann, Boston, MA
  2. Andreasen, M., Kahler, S. and Lund, T., 1988, Design for Assembly, 2nd ed., IFS Bedford-Springer-Verlag, New York, NY
  3. Henstock, M. E., 1988, Design for Recyclability, The Institute of Metals on behalf of The Materials Forum, London, UK
  4. Bonenberger, P. R., 1994, 'Stretching the limits of DFM,' Machine Design, pp. Vol. 66, pp.67-70
  5. Luscher, A. F., Gabriele, G. A., Bonenberger, P. R. and Messler, R. W. Jr., 1995, 'A Classification Scheme for Integral Attachment Features,' Proceedings of ANTEC '95 Conference of the Society of Plastic Engineers, Boston, MA, pp. 3783-3787
  6. Messler, R. W. Jr, Genc, S. and Gabriele, G. A., 1997, 'Integral Attachment Using Snap-Fit Features: a Key to Assembly Automation, part 2 - Bringing Order to Integral Attachment-Level Design,' Assembly Automation, Vol. 17, pp. 153-162
  7. Hong, M. S., Kim, J. M. and Park, B. S., 2005, 'A Study on the Hierarchical Classification Scheme for Snap-fits,' Proceedings of the KSMTE Autumn Conference, pp. 320-324
  8. Hong, M. S., Kim, J. M. and Park, H. K., 2005, 'A Study on the Simplification of Parts Assembly Using Snap Fit,' Proceedings of the KSMTE Autumn Conference, pp. 349-354