| 摘要 |
A loader such as a front end loader is provided with clam shell type bucket having a blade section, and collecting section pivoted thereon. The collecting section has a separating section having a separating surface curved on an arc centered on pivotal axis of the collecting section and positioned relative to the leading edge of the blade section so that it tends to wipe clean the separating surface as it passes thereby when the relevant bucket sections are relatively pivoted from a screening position to a closed position. When the clam shell is in the screening position, the separating section forms at least a portion of the bottom of the bucket. A sifting screen for sifting finer material may also be provided as a dam at the free end of the collecting section.
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