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2. 发明专利

JPH0820461A MANUFACTURE OF ROLL BODY OF PLASTIC SHEET AND ROLL BODY 失效
公开(公告)号：JPH0820461A
公开(公告)日：1996-01-23
申请号：JP15505694
申请日：1994-07-06
申请人： FUKUDA KK
发明人： FUKUDA AKINORI
IPC分类号： B65H18/28 , B65H19/28 , B65H75/26 , B65H75/28
摘要： PURPOSE:To reduce manufacturing cost by fixing both ends of a tip end part of a plastic sheet when the sheet is reeled off, thereby manufacturing a roll body without using a paper core tube. CONSTITUTION:A plastic sheet 3 is fixed to a cantilever winding shaft 10. Both ends of a tip end part 5 of a plastic sheet 3, which was drawn from an original roll 4, are inserted and fixed in between fixed members 7, 8, which are placed at both end parts of the cantilever winding shaft 10, and the cantilever winding shaft 10. In this case, the tip end part 3 may be tucked in the fixed members 7, 8 or the tip end part 5 may be rolled back. Next, a shaft driving part 9 is operated to rotate the cantilever winding shaft 10, so that a plastic sheet 3 having a prescribed length is reeled and cut. Lastly, a roll body is drawn from the cantilever winding shaft 10. In other words, the plastic sheet 3 is cut at appropriate positions first, a fixed member 7, which can be attached to or detached from the cantilever winding shaft 10, is taken out, and then the roll body is drawn from the cantilever winding shaft 10.

3. 发明专利

JPH0819991A PLASTIC SHEET ROLL BODY CUTTING METHOD AND ITS DEVICE 失效
公开(公告)号：JPH0819991A
公开(公告)日：1996-01-23
申请号：JP15505794
申请日：1994-07-06
申请人： FUKUDA KK
发明人： FUKUDA AKINORI
IPC分类号： B26D1/30
摘要： PURPOSE:To reduce generation of chips and enhance external appearance of a cut surface by providing a cutting member with a wavy cutting part without a sharp corner. CONSTITUTION:Two pieces of fixing plates 6 having protrusions 7 on surfaces thereof are arranged, in such a manner that the surfaces having the protrusions 7 are facing each other, on both sides of a roll body so as to interpose the roll body in-between. A cutting member 3 is composed of a wavy cutting part 4 and edge-less parts 5, and the cutting part 4 is a portion having a cutting function and has an acute angular cross section. On the other hand, portions other than the cutting part 4 on the side having the cutting part 4 are desirable to round off the sharp corners to form the edge-less parts 5. With this constitution, generation of chips is reduced and damage of a plastic sheet is prevented. When this cutting part is advanced in cutting the roll body toward a rotation shaft, since a shape of the cutting part 4 is formed wavy without a sharp corner, cutting is facilitated and cutting resistance is decreased.

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