Host: The Japan Society of Mechanical Engineers
Name : Dynamics and Design Conference 2018
Date : August 28, 2018 - August 31, 2018
The sensory evaluation for the easiness of grasping by young college student and that by senior people were studied. It was appeared that the senior citizen becomes difficult to evaluate rationally compared with young people. This tendency was conspicuous in particular in the evaluations by 2-steps, 5-steps and 7-steps.The senior person needed longer evaluation time, i.e., 120%~150% of that by young people, especially in the evaluations by 3-steps, 5-steps and 7-steps, i.e., odd steps. This result shows that the elderly is difficult to make an ambiguous evaluation such as neither, so that in case of elderly person, the evaluation with the scale of 2-stepsor odd-steps is to be avoided. Optimum diameters evaluated by elderlies were smaller than that by young persons about 5mm.
