TEST PIECE FIXING STRUCTURE FOR TENSION TESTER

PURPOSE: A test piece fixing structure for tension tester is provided to allow test piece to be fixed in a convenient manner and simplify fixing structure, while reducing manufacturing cost. CONSTITUTION: A test piece(1) for tension test has upper and lower fixing portions(11) coupled to a support holder(2) and fixed to a gripper of a tension tester. Each of the fixing portions of the test piece has a protruded piece(12) protruded along the circumference of the fixing portion. The support holder is formed into a cylinder, and has a stopper(21) formed at an end of an inner periphery of the support holder so as to be coupled with the protruded piece of the fixing portion of the test piece. The protruded piece has a coupling groove form at the circumference of the protruded piece so as to correspond to the stopper formed at the support holder, and the stopper of the support holder has a coupling groove formed at the circumference of the protruded piece so as to correspond to the protruded piece of the test piece.