| 摘要 |
PROBLEM TO BE SOLVED: To suppress over load from applying to a driving portion or a transmission system and simplify and downsize an entire device, by providing a uniform pressure connection means for uniformly or substantially uniformly connecting each roller onto the outer peripheral surface of a main shaft or a passive shaft interlocking with a pressure connection of the roller to a rotation shaft core side. SOLUTION: A uniform pressure connection means includes first and second holding bodies 13, 14 that are interlinked vertically, relatively back-and-forth movably in a state of surrounding a part of the outer peripheral surface of a passive shaft 10. An elastically energizing mechanism 16 for moving and energizing the first holding body 13 on the upside where both driving rollers 12 journalled to it separate from the passive shaft 10 is provided between the first holding body 13 and a easing 9. An operation mechanism 17 is provided that connects by pressure and moves, onto the outer peripheral surface of the passive shaft 10, the driving rollers 12 journalled to the first holding body 13 against an elastic energizing force of the elastically energizing mechanism 16, while the roller 12 journalled to the second holding body 14 is connected by pressure to the outer peripheral surface of the passive shaft 10. The operation mechanism 17 is provided with an elastically energizing body 15 for approaching, moving, and energizing the second holding body 14 to the passive shaft 10 side with an elastic force.
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