| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple torsional fatigue tester enabling the torsional test of a plurality of test pieces by one test to enhance the efficiency of a torsional fatigue test and capable of achieving the reduction of an arranging space and cost reduction as compared with a conventional case arranging a plurality of torsional fatigue testers. SOLUTION: An intermediate bearing 4 is provided between a torque loading part 2 equipped with a torque actuator 21 and a test piece holder 3a and a reaction part 5 having a fixed test piece holder 3d in coaxial relation to both parts 215 and test piece holders 3b, 3c are supported on both sides of the intermediate bearing 4 in a freely revolvable manner and, by driving the torque actuator 21 in such a state that test pieces W are mounted between the torque loading part 2 and the intermediate bearing 4 and between the intermediate bearing 4 and the reaction part 5, a plurality of the test pieces W are loaded with the same torque and can be subjected to a torsional fatigue test by one test.
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