JPH0237845U

JPH0237845U -

Info

Publication number: JPH0237845U
Application number: JP11597688U
Authority: JP
Priority date: 1988-09-05
Filing date: 1988-09-05
Publication date: 1990-03-13
Anticipated expiration: 2003-09-05
Also published as: JPH0618893Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の多層袋が形成され
るひだ付階段切り筒状体の一部欠載正面図、第２
図はその背面図、第３図、第４図は第２図の底端
部の部分図で、説明の便宜上、それぞれ最外層（
第３図）、最外層と中間層（第４図）を切除した
状態を示す。第５図は第１，２図の筒状体の底端
部を閉鎖した状態を示す部分斜視図、第６図ａ−
ｄは底端部を開封する手順を示す部分斜視図であ
る。図中、１……袋体の前壁、１ａ……前壁の最外
層、１ｂ……前壁の中間層、１ｃ……前壁の最内
層、２……後壁、２ａ……後壁の最外層、２ｂ…
…後壁の中間層、２ｃ……後壁の最内層、３１，
３２……パーフオレーシヨン線、４ａ，４ｂ……
層間接着部、５……ひだ部、１０……口端部、２
０……底端部、１１，２１……閉鎖用フラツプ部
、１２，２２……口縁、１３，２３……折曲げ線
、１４，２４……閉鎖用フラツプ部との貼着域。 Fig. 1 is a front view, partially cut out, of a fluted step-cut cylindrical body in which a multilayer bag according to an embodiment of the present invention is formed;
The figure is a rear view, and Figures 3 and 4 are partial views of the bottom end of Figure 2.For convenience of explanation, the outermost layer (
Fig. 3) shows a state in which the outermost layer and the middle layer (Fig. 4) have been removed. FIG. 5 is a partial perspective view showing the bottom end of the cylindrical body in FIGS. 1 and 2 closed, and FIG. 6 a-
d is a partial perspective view showing the procedure for unsealing the bottom end. In the figure, 1...front wall of the bag body, 1a...outermost layer of the front wall, 1b...middle layer of the front wall, 1c...innermost layer of the front wall, 2...rear wall, 2a...rear wall The outermost layer of 2b...
...middle layer of the rear wall, 2c...innermost layer of the rear wall, 31,
32... Perflation line, 4a, 4b...
Interlayer adhesive part, 5...Fold part, 10... Mouth end part, 2
0... Bottom end, 11, 21... Closing flap part, 12, 22... Mouth edge, 13, 23... Bending line, 14, 24... Adhering area with the closing flap part.

Claims

[Scope of utility model registration request]

It is composed of multiple layers, has pleats on both sides, and one of the front and rear walls of the mouth and bottom ends has a closing flap that protrudes upward and downward from the other, respectively, and the ends of each layer have pleats on both sides. The closing flap portion at the bottom end of the cylindrical body arranged in a stepwise manner in the vertical direction on the front and rear walls of the cylindrical body is bent along a bending line closer to the center of the cylindrical body from the mouth edge of the end. In a multilayer bag that is pasted on the opposite wall and closed, and after filling with contents, the mouth end is closed in the same way as the bottom end, the closing flap part at either the mouth or the bottom end is closed. On the outer layer, excluding at least the innermost layer on the side of the wall that will not be formed, two perforation lines extending from the adhesive area with the closure flap toward the center of the cylindrical body are placed close to either the left or right pleat. , and is provided parallel to the pleats, and all the layers between the perforation lines are adhered to each other in the area where they are attached to the closure flap.