JPS62139672U

JPS62139672U -

Info

Publication number: JPS62139672U
Application number: JP2767786U
Authority: JP
Priority date: 1986-02-26
Filing date: 1986-02-26
Publication date: 1987-09-03

Description

[Brief explanation of the drawing]

第１図は、この考案の一実施例の斜視図である
。第２図は、第１図Ａ―Ａ線断面図である。第３
Ａ図ないし第３Ｅ図は、この考案の一実施例の製
造方法の一例を示す図解図である。第４Ａ図ない
し第４Ｃ図は、この考案の一実施例の製造方法の
別例を示す図解図である。第５図は、従来例を示
す図解図である。図において、１０はポケツト、１２はポケツト
部、１４は綴じ代部、１６は開口部、１８は底縁
、２０は左側縁、２２は右側縁、２４は綴じ孔、
２６は補強部、２８は上層のフイルム片、３０は
下層のフイルム片、３２は溶着部位を示す。 FIG. 1 is a perspective view of an embodiment of this invention. FIG. 2 is a sectional view taken along the line AA in FIG. 1. Third
Figures A to 3E are illustrative views showing an example of a manufacturing method of an embodiment of this invention. FIGS. 4A to 4C are illustrative views showing another example of the manufacturing method of one embodiment of this invention. FIG. 5 is an illustrative diagram showing a conventional example. In the figure, 10 is a pocket, 12 is a pocket part, 14 is a binding margin, 16 is an opening, 18 is a bottom edge, 20 is a left edge, 22 is a right edge, 24 is a binding hole,
26 is a reinforcing portion, 28 is an upper layer film piece, 30 is a lower layer film piece, and 32 is a welded part.

Claims

[Claims for Utility Model Registration] 1. A utility model comprising: an opening, left and right edges perpendicular to the opening, and a bottom edge perpendicular to the left and right edges and parallel to the opening; In a pocket in which a binding margin is formed on at least one of the edges, a single film material is folded back at one of the left and right edges and overlapped in a two-layer structure to form a rectangular shape, and The other side edge is folded back, and the reinforcing portion near the side edge on the side where the binding margin is formed is overlapped and bonded to the outside of the binding margin forming side of the other film material, forming a binding margin with at least a three-layer structure. Pocket, which is characterized by being 2 One sheet of film material is stacked with different lengths in the width direction in the upper and lower layers so that the binding margin forming part remains, and the remaining part forming the reinforcing part is placed on the outside of the upper layer film piece. They are overlapped and glued together at the binding margin forming area,
The pocket according to claim 1 of the utility model registration, in which a binding margin portion having a three-layer structure is formed. 3 A binding hole is formed in the binding margin, and the film material forming the three-layer binding margin is welded only at a portion slightly inside the outermost edge of the binding hole,
The pocket according to claim 1 or 2 of the utility model registration claim, in which a binding margin is formed. 4 A utility model in which binding holes are formed in the binding margin, and the film material forming the binding margin with a three-layer structure is adhered with an adhesive applied to the binding margin to form the binding margin. A pocket according to registered claim 1 or 2.