| 摘要 |
<p>A link (25) for connecting a track shoe has shaft holes (31), (32) at both ends thereof. In the link (25), a plurality of insertion holes (39) are formed between both shaft holes (31), (32), and window holes (40), (41) are formed at the positions corresponding to respective insertion holes (39). Bolts (43) are inserted into respective insertion holes (39), and nuts (44) screwed onto the ends of the bolts (43) in the window holes (40), (41) are tightened to fix the link (25) to the track shoe (26). The area of the window hole (41) in proximity to the second shaft hole (32) is made larger than that of the other window hole (40) so that the rigidly of the link (25) can be gradually decreased toward the second shaft hole (32).</p> |
