| 摘要 |
PCT No. PCT/GB91/01985 Sec. 371 Date Jun. 10, 1993 Sec. 102(e) Date Jun. 10, 1993 PCT Filed Nov. 12, 1991 PCT Pub. No. WO92/08339 PCT Pub. Date May 29, 1992.A crop stripper drum has a series of axial rows of flexibly displaceable teeth (12) circumferentially spaced around the drum. At the roots of the teeth are bulbous openings (12b, 22a) formed in metal members, which may comprise the teeth (12) or be elements (21) separate therefrom. For flexibility, the teeth may be given root openings larger than the openings formed by said separate elements, thereby reducing their root widths, or they may be put in a resilient mounting (62) that increases the deflection they experience under load. Separate elements (52) provided for forming the stripper openings, may be of an adjustable form to vary the width of the openings. The constructions disclosed are able to allow the use of metal for the active stripping means, whereby to increase the service life and reduce the power requirements. Adjustment of the size of the openings allows the striper to be adapted to harvest different crops.
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