To minimize wrinkles in a crease of a sheet drawn out from an original roll and folded so as to reduce its size.
The packing apparatus comprises a triangular plate 3, which forms a crease 11 by an apex angle 7 such that a sheet 4 is slid from a bottom 6 toward the apex angle 7 while given tension along an oblique edge 8' connecting the bottom 6 and apex angle 7 and which forms a triangular open space 12 on the bottom side. The apparatus also comprises: a drawing roller 13, which draws the widthwise middle of the sheet 4 while sandwiching the crease 11 and draws superposed widthwise edges 14. The apparatus further comprises a welding-cutting member 17, which welds and cuts superposed portions 16 widthwise and thus successively forming packaging bags in which the fold 11 serves as a bottom 11' and the open space 12 serves as an insertion opening 12' for the member to be packed. The drawing roller 13 is disposed in relation to the triangular plate 3 so that a resisting force is produced in the direction where the degree of draw of the crease 11 of the sheet 4 is restrained.
OTSU SHOJI
KAWAMATA HAJIME
SUGANO KAZUHIRO
| JPH10250702A | 1998-09-22 | |||
| JPS5522926A | 1980-02-19 | |||
| JPS4727034Y1 | 1972-08-18 | |||
| JPH0691791A | 1994-04-05 | |||
| JPS3915873Y1 | ||||
| JPH10230903A | 1998-09-02 | |||
| JP2004231268A | 2004-08-19 | |||
| JPH0487913A | 1992-03-19 | |||
| JPH0340907U | 1991-04-19 |
Next Patent: CORRUGATED FIBERBOARD BOX WITH FOLDING LOCK