| 摘要 |
PROBLEM TO BE SOLVED: To provide a track block which is able to discharge earth and sand and snow before a packing phenomenon occurs even if the earth and sand and snow infiltrate between crawler track links. SOLUTION: An iron track block 4 is fitted to the crawler track links 2, an elastic body track block 6 is fitted to the ground contact surface side of the iron track block 4, and a protrusion 14 made of an elastic material is formed so as to protrude into a space surrounded by the right and left crawler track links 2 and hookup pins in both front and rear.
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