LOW TENSION SHEET WINDING METHOD, AND AIRTIGHT STRUCTURE OF PISTON USED IN EXECUTION OF METHOD,申请号JP20140077502-传众专利搜索

LOW TENSION SHEET WINDING METHOD, AND AIRTIGHT STRUCTURE OF PISTON USED IN EXECUTION OF METHOD

申请公布号：JP2015199553(A)

申请号：JP20140077502

申请日期：2014.04.04

申请公布日期：2015.11.12

申请人：

TOSHIN:KK

发明人：IWATA SATORU;MISHIMA TAKASHI;YAMAMURA NAOMI;KONDO MAYUMI

分类号：B65H18/04

主分类号：B65H18/04

摘要：PROBLEM TO BE SOLVED: To enable winding of a sheet with winding tension as set from the beginning of the sheet winding while reducing mechanical loss at a portion of each piston of first and second pistons constituting a winding shaft.SOLUTION: Before winding of a sheet in which a winding core M is set in a winding shaft K, by applying negative pressure to each of first and second pistons P, P, the plurality of first and second pistons P, Pare separated from an inner peripheral surface of a cylinder block B and a side surface of a slide ring S respectively and brought into a non-contact state. Then, by applying pressure, which increases in proportion to a winding diameter of the sheet with respect to the winding core M, only to the plurality of first pistons P, winding torque is generated in the winding core M, and thus the sheet is wound with low tension.