| 摘要 |
A springy panel bridges the ring mechanism housing. It is mounted on the ring halves so that when the ring halves close they cam the panel up the lower curve of the segments, and bow the panel upward away from the ring mechanism housing cover. An element having an upward end cam surface for paper or for a sheet lifter is mounted through two holes in the element on a lower segment of a ring so that one end of the element is inside the ring adjacent to the ring mechanism cover, the other end is inside the ring, adjacent to a line through the widest horizontal portion of the closed ring, and the element bows out of the ring between the two ends.
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