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    • 7. 发明申请
    • NON-CIRCULAR WIRE CROP PICK-UP TOOTH
    • 非圆形电线片拾取牙齿
    • WO2008073182A1
    • 2008-06-19
    • PCT/US2007/021896
    • 2007-10-12
    • DEERE & COMPANYDERSCHEID, Daniel, EricANSTEY, Henry, Dennis
    • DERSCHEID, Daniel, EricANSTEY, Henry, Dennis
    • A01D89/00A01D80/02
    • A01D80/02A01D89/002
    • Spring teeth (84) for a harvesting machine (10) are each constructed of spring wire having a square cross section and being wound so as to define a coil torsion spring section (88) terminating in a tine (86), with the tine having a leading flat surface (a), considered relative to the engagement of tine with the crop during pickup operation, and having a trailing flat surface (b) disposed parallel to said leading flat surface. The coil torsion spring is mounted to a tooth bar (80) formed as a channel member such that the outer surface of the coils make a relatively large area contact with the tooth bar at location (116) spaced approximately 180° from where the tine joins the coil torsion spring. This together with the fact that the contact area of the flat sides of the wire in the coil region is also quite large leads to a damping action that lessens stress in the tooth assembly.
    • 用于收割机(10)的弹簧齿(84)各自由具有正方形横截面的弹簧丝构成,并且被卷绕以限定终止于齿(86)的线圈扭转弹簧部分(88),其中齿具有 考虑到相对于拾取操作期间齿与作物的接合而具有平行于所述前平面的后平面(b)的前导平面(a)。 线圈扭转弹簧被安装到形成为通道构件的齿条(80)上,使得线圈的外表面在与齿连接的距离大约180°的位置(116)处与齿条形成相对较大的面积接触 线圈扭簧。 这与线圈区域中的线的平坦侧面的接触面积也相当大的事实导致减轻牙齿组件中的应力的阻尼作用。