This machine is to test the wearability of the shoelace, and the way of the shoelace is to: Take two laces, middle hook, forming a right and a left to right, the machine fixture (fixed clamp clamping) with both ends of the natural right away from the 25mm, to assist with gauge, the right to take a left hook with 52.2 degrees, and to hook point distance of 120mm, and then to the left the fixture (clip) with a left clamping end, the other end is placed in the pulley groove, and below the suspension weights, pinch wheel groove and natural distance of 35 ± 5mm. During the test, the dynamic clip was reciprocating at the constant speed and the straight line, so that the two shoelaces were rubbed together, and the friction times were recorded until the specified number of friction times or shoelaces were broken.
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