| 摘要 |
A roller (50) for use in apparatus configured to separate a bulb or root crop from debris, comprising: a resilient sleeve (52) with a plurality of helical ribs (58) on its radial outer periphery; a substantially rigid core (54) for engaging a drive shaft; and support means extending between the substantially rigid core (54) and the resilient sleeve (52); wherein the support means comprises a resilient tubular member (56).
|
