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Related Experiment Videos

Evaluation of hook handles in a pulling task.

Yong-Ku Kong1, Andris Freivalds, Sung Kun Kim

  • 1The Harold and Inge Marcus Department of Industrial and Manufacturing Engineering, Pennsylvania State University, University Park, PA, USA. ykong@cdc.gov

International Journal of Occupational Safety and Ergonomics : JOSE
|October 13, 2005
PubMed
Summary

Meat-hook handle design significantly impacts user comfort and required pulling force. Optimal handle shapes and sizes, like the 37-mm double frustum, reduce strain and improve subjective preference.

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Area of Science:

  • Ergonomics
  • Biomechanics
  • Product Design

Background:

  • Meat-hook handle design is crucial for user comfort and efficiency.
  • Understanding the relationship between handle characteristics and physical forces is important for optimizing tool design.

Purpose of the Study:

  • To evaluate how handle shape, size, and hook position affect subjective user ratings and pulling forces.
  • To analyze finger and phalange force contributions during a pulling task with different meat-hook handles.

Main Methods:

  • Meat-hook handles with varied designs were tested in a pulling task.
  • Subjective discomfort ratings and pulling forces were recorded.
  • Finger and phalange forces were measured using force-sensitive resistors.

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Main Results:

  • Subjects preferred 37-mm double frustum and 30-mm oval handles.
  • 37-mm and 45-mm double frustum handles required less pulling force.
  • Finger and phalange force contributions varied based on handle design, indicating a relationship between handle characteristics and force distribution.

Conclusions:

  • Handle shape and size significantly influence subjective discomfort and the forces exerted by fingers and phalanges.
  • Optimized meat-hook handle design can reduce physical strain and improve user experience.