| 摘要 |
PURPOSE:To raise the durability of a side dump bucket device by a method in which load of a bucket landing on the ground during loading operation and load of the bucket during the lifting-up period are received by separate different elements, respectively, in such a way as to avoid the application of these loads on the slide bar of a dump switching means. CONSTITUTION:Vertical lock pins 11A-12B for freely coupling or separating the brackets 3A on a carrier and brackets 6A on a bucket side, and a slide bar 15 to displace the locking positions and lock-releasing positions of brackets 3A and 6A, 3B and 6B, 4A and 7A, and 4B and 7B on the carrier side and the bucket side for lock pins 11A-12B are provided. The load, when the bucket is lifted up, to be applied to the slide bar 15 is completely avoided. For example, the load when the bucket 5 loaded is dumped on one side at the pins 11A and 11B as fulcrums, is shared by the facial contact portion between the pins 11A and 11B and the holes of the brackets 4A and 4B thrust with the pins 11A and 11B. Therefore, no load is applied to the slide bar 15. |
