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Abstract
This paper presents results of a study conducted to determine minimum friction levels between the floor and footwear required in cart pushing and pulling to reduce accidents caused by slipping. Experiments involving pushing and pulling a cart were con ducted in the laboratory. Eight subjects with different body weights (ranging from 50 to 80 kg.) were tested for three different hand forces (98, 196 and 294 newton), three different cart handle heights (66, 109 and 152 cm high) and two different moving speeds (1.8 and 3.6 km/hour). A low handle required less friction level (av. 0.3) than a high handle (av. 0.6) in pulling. A high handle required less friction level (av. 0.3) than a low handle (av. 0.7) for all test conditions. The required friction increased significantly as hand force increased. As expected a heavy person exerting a light force (required for the task) and using a slow speed of movement proved to reduce the slip potential.
Notes
Handled by the Department of Work Measurement/Methods/Ergonomics.