| 摘要 |
In a multistage transmission, a pair of pressure rollers is provided to be movable along a two-axes connecting line of input and output shafts within a disk overlapping area of input and output disks, and configured to sandwich the input and output disks while applying contact pressure from the outside disk faces at a position corresponding to a required transmission ratio. A plurality of ridged portions, formed on each of the input and output disks, are configured such that the entire length of the two-axes connecting line is divided into an input-side driving radius and an output-side driving radius, both determined based on the required transmission ratio, and that an apex of a selected input-side ridged portion and an apex of a selected output-side ridged portion, both determined based on the required transmission ratio, are arranged to oppose each other on the two-axes connecting line.
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