JP3223444B2 - Paper bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION An easy-open paper bag in which an overtape having an inner surface provided with a heat-adhesive resin layer at the opening of a cylindrical body is folded in a V-shape, covered, and thermally bonded.

[0002]

2. Description of the Related Art Conventionally, an easily openable paper bag in which an overtape 102 is wrapped around an opening 1a of a tubular body 1 has two ends, as shown in FIGS. It was protruding.

[0003] However, such an easily openable paper bag has the drawback that not only is it troublesome to carry, but also hard to cause the cut tape 102t, since both ends of the overtape 102 protrude to both sides of the tubular body 1. .

[0004]

SUMMARY OF THE INVENTION Opening 1a of tubular body 1
To prevent both ends of the overtape 102 from protruding on both sides of the bag, to facilitate carrying of the easy-open bag,
Try to make the cut tape easy.

[0005]

[Effect] (a) Since the cut tape side folding surface 2x1 and the covering side folding surface 2y1 are folded into the gusset portion 1x, a finger easily enters the gusset portion 1x and is easily carried.

(B) Since the folding surfaces 2x1 and 2y1 of the overtape 2 are folded into the gusset portion 1x,
The opening 1a is reinforced.

(C) Since the cut tape knob 2t1 protrudes independently on both sides of the cylindrical body 1, the cut tape 2t is easily caused.

[0008]

Embodiments of the present invention will be described below. 1 and 2 show a conventional method of using an overtape. 102 is an overtape, 102x is a cut tape side half surface, 102y is a coating side half surface, 102z is a fold line, 102s is a slit, 1 is a cylindrical body, and 1a is an opening. In the conventional overtape 102, both side portions protrude on both sides of the opening 1a of the tubular body 1.

3 to 11, 1x is a gusset part,
1y is a one-fold portion, 2 is an overtape, 2x is a cut tape side half surface, 2y is a coating side half surface, 2z is a fold line thereof, and 2x1 is a cut tape side as shown in FIGS. Folded surface, 2y1 is coated side folded surface, 2y1
t is a cut tape, 2t1 is a cut tape knob, 2
s and 2s are the slits. Cut tape 2t is 1
It is attached to a position where the folding part 1y can be opened.

The use state will be described below. First, the overtape 2 shown in FIGS. 3 and 7 is put on the opening 1a of the tubular body 1. Next, the gusset part 1x of the cylindrical body 1
The cut tape side folding surface 2x of the over tape 2
1. Fold the cover side folded surface 2y1 as shown in FIGS.

However, at this time, the cut tape knob 2t
1 is a slit 2 as shown in FIG. 4, FIG. 5, FIG. 7, and FIG.
With s and 2s as boundaries, they are left independently on both sides of the opening 1a of the tubular body 1. Finally, the heat bonding resin layer 2c of the overtape 2 is heat-sealed to the tubular body 1 and both are heat bonded.
At this time, the folded surfaces 2x1 and 2y1 are also heat-sealed at the same time.

When the cut tape 2t is raised, the opening of the one-fold portion 1y can be opened.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional overtape 102,

FIG. 2 is a coating-side half surface 102y of an overtape 102;
Front view shown as an extended state,

FIG. 3 is a perspective view showing an initial state of the overtape 2;

FIG. 4 is a front view of the easy-open bag of the present invention;

5 is a cross-sectional view of FIG.

FIG. 6 is a perspective view of a state in which the coating-side half surface 2y of the overtape 2 in the state of FIG. 3 is elongated.

7 is an enlarged perspective view of the covering half surface 2y of the overtape 2 in the state of FIG. 6;

FIG. 8 is a perspective view of the cylindrical body 1 (however, it is shown upside down).

FIG. 9 is a view taken in the direction of arrows in FIGS.

FIG. 10 shows the overtape 2 separately in FIG.

[Explanation of symbols]

1: cylindrical body, 1a: opening, 1x: gusset, 1y:
1 diffraction part, 2: over tape, 2x: cut tape side half surface, 2y: coating side half surface, 2z: folded line, 2x1: cut tape side folding surface, 2y1: coating side folding surface, 2
s: slit, 2t: cut tape, 2t1: cut tape knob.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65D 30/14 B65D 33/00 B65D 33/28

Claims (1)

(57) [Claims] 1. A tubular body 1 having gusset portions 1x on both sides.
Of the overtape 2 having a heat adhesive resin layer 2c on the inner surface and having a cut tape 2t attached to the opening V
In the easy-open bag formed by folding and capping into a letter shape and forming a sealing portion by heat sealing, the cut tape picking portion 2t1 of the overtape 2 is made independent and protrudes to both sides of the tubular body 1, and the cut tape is picked. An easily openable paper bag in which a portion of the overtape 2 protruding beyond the width of the tubular body 1 except for the portion 2t1 is folded into the gusset portion 1x of the tubular body 1.