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Grab for excavators of foundation walls and rectangular piles, and an excavator provided with said grab
Grab for excavators of foundation walls and rectangular piles, and an excavator provided with said grab
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机译:用于基础墙和矩形桩的挖掘机的抓斗,以及带有所述抓斗的挖掘机
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摘要
A grab having at least one shoe for support against the walls of the hole that the grab is digging, and elements for moving the shoes between a folded-in position in which they remain alongside the frame and an unfolded position in which they press against the walls of the hole. Preferably, unfolding of the shoes is performed automatically when the grab reaches the bottom of the hole. The excavator of the invention is provided with such a grab. A very high digging force is achieved without an increase in the volume or in the weight of the grab.
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