抄録
According to the statistics published by Japan Health, Labor and Welfare Ministry, accidents that occurred in food stuff manufacturing is the highest in manufacturing industries. In this research, we focus on the finger crushing/entanglement accidents in the foodstuff manufacturing. There are two main causes of this accident; First, workers do not have chance to learn about hazard related to food machine. Second, crushed force that acting on the finger still not have quantitative evaluation. Therefore, a numerical index that can be use in field of machine design and worker's education is necessary. A finger tester for measuring the acting force on finger is need for quantitative evaluation. The finger tester is used to measure applied force at accident position of food machine as quantitative evaluation process. In developing the finger tester, prototype tester capable of measuring the acting force from omnidirectional, and performs influence investigation of the action force by the filling fluid and the material of the site of action. The objective of this research is to increase the worker's understanding about the hazard and to reduce the finger crushing/entanglement accident. In this study, assuming the finger crushing/entanglement accidents , it was investigated the effects of the action force due to the kinematic viscosity of the fluid and hardness of the tube.