SHEETLIKE MATERIAL SUPPLYING DEVICE TO WORKING PART

摘要

PROBLEM TO BE SOLVED: To always impart constant tension to a supply sheet by providing a means imparting pressing force from the upper part of an upper bearing main body to a shaft when the shaft is supported in a divided bearing main body. ;SOLUTION: When working is progressed and the diameter of an original sheet is reduced, tension of a sheetlike material changes although a dancer roller device is interposed. Because working in a working part is hindered when tension changes in this way, pressing force by springs 23 for washers 22 which are abutted on the upper surfaces of the upper bearing main bodies of bearings 8, 8 is increased by revolving knobs 18 for closing. As a result, braking force is applied to a shaft 5, revolution of the shaft 5 is slowed down, proper braking is imparted to force winding the original sheet, tension of the sheetlike material is increased and constant tension is made to be obtained.;COPYRIGHT: (C)1998,JPO