| 摘要 |
A pickup reel for a harvester. The harvester includes a harvesting platform including a frame having a front edge and a cutter bar extending along the front edge. The pickup reel includes a reel support supported by the frame, a first shaft rotatably supported by the reel support and extending along an axis transverse to the frame, an arm extending radially from and being rotatable with the first shaft, a second shaft supported by the arm and being generally parallel to and radially spaced from the first shaft, the second shaft being rotatable relative to and rotatable with the arm, and a plurality of tines supported by the second shaft for rotation with the second shaft, each of the plurality of tines having a tip, the tips being movable along a tip path during rotation of the first shaft. Also, the pickup reel includes a cam defining a generally endless cam path extending about the first shaft, a cam follower engageable with the cam and movable along the cam path, a crank arm connected between the cam follower and the second shaft, and a retainer for the cam path arrangement. The retainer includes, on one of the cam and the cam follower, a first surface and a second surface axially spaced from the first surface, and a portion of the other of the cam at the cam follower position between the first surface and the second surface to retain the cam follower in engagement with the cam during movement of the cam follower along the cam path. Rotation of the first shaft and movement of the cam follower along the cam path cooperate to cause the tips to move along the tip path.
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