METHOD FOR EVALUATING SLIP AND STUMBLING AND TEST DEVICE THEREOF

摘要

Provided is a novel slip test machine which can evaluate a slip phenomenon under such a state that the body weight is not transferred completely when a person advances one step by floating one surface of a test piece from the surface of floor material until immediately before starting a test, setting a vertical speed of the test piece until the test piece lands on the surface of floor material, a vertical load speed after landing and horizontal speed and acceleration, performing incident landing of the test piece on the surface of floor material from a preset incident angle so that the test piece is landed under such a state that the surfaceof a test piece is parallel with the surface of floor material, measuring a vertical force and a horizontal force which the floor material receives from the test piece, and judging the degree of risk of slip or stumbling of the floor material from a range of a frictional coefficient obtained by dividing the horizontal force by the vertical force, thereby making it possible to measure a dynamic frictional coefficient continuously from a static frictional coefficient incident to walking motion of a person.