Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on Hand Speed Constant to Calculate Safe Distance of Press Protective Device

프레스 방호장치 안전거리 산정을 위한 손속도상수

  • Lee, Keun-Oh (Department of Safety Engineering, Seoul National University of Science and Technology) ;
  • Kim, Jong-Hyun (Department of Lift Mechatronics, Korea Lift College)
  • 이근오 (서울과학기술대학교 안전공학과) ;
  • 김종현 (한국승강기대학 승강기메카트로닉스과)
  • Received : 2010.09.07
  • Accepted : 2010.12.09
  • Published : 2010.12.31
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Abstract

To protect press operator from the after-reach hazard, current Ministry of Labor Notification(MOLN) requires the use of a formula for calculating the safe distance away from the point of operation for locating press protective devices, Two Hand Control Devices(THCD) and Active Opto-Electronic Protective Devices(AOPD), on a power press. This formula is based on a same hand speed constant of 160cm/s. While EN standards use different hand speed constant for THCD and AOPD respectively. The objective of this study is to compare two guidelines on the hand speed constant published by MOLN and EN 692, also to propose a proper hand speed constant and validate it experimentally. As a experimental result, it could be known that hand speed constant of Ministry of Labor Notification should be improved as that of EN standards.

Keywords

References

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