| 摘要 |
A hold down mechanism controlling the top mat of crop material on a pickup belt platform includes a pair of support arms pivotally mounted on the opposite sides of the frame and extending longitudinally parallel to the rotatable pickup belt. A transverse cross member extends between the two support arms. The cross member has a tubular cross section and a transverse array of through holes, each through hole having a first opening and a diametrically opposite second opening in the tubular cross member, wherein the first opening is larger than the second opening. A plurality of hold down fingers are provided. Each finger has a flexible rod portion extending from and secured in a base portion. The base portion has a shoulder opposite the secured rod portion and a retaining portion extending from the shoulder opposite to the rod portion. A plurality of releasable retainers are provided. The base portions are inserted and mounted in the first openings in the tubular cross member so that the retaining portions extend through the second opening and are releasably secured adjacent the second openings by the retainers. |
