| 摘要 |
<p>PROBLEM TO BE SOLVED: To regulate under pressure a plurality of low-pressure roller pairs without unbalancing each roller pair in a feeding speed or pressure application. SOLUTION: The sheet feeder comprises a roller pair unit means consisting of a main roller 17 and a plurality of subsidiary rollers 18 opposed to the main roller 17, which are all integrated together movably in a separating/approaching direction via coupling means, and a case means having a pressure means 13 for pressurizing the shank of the main roller 17, support means for supporting the shanks of the subsidiary rollers 18, and connecting means. The case means uses the connecting means to interconnect the pressure means and the support means or to accommodate the roller pair unit means wherein the main roller 17 forms nips with the subsidiary rollers 18 simultaneously.</p> |
