JP7162327B2 - Packaging bag and manufacturing method thereof - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper blade packaging bag and a manufacturing method thereof, and more particularly to a wiper blade packaging bag containing a wiper blade therein and a manufacturing method thereof.

It is generally known that wiper blades for wiping rainwater and dirt adhering to the window glass of automobiles, for example, can be replaced because the synthetic rubber portion is a consumable item and wears out as it is used. Replacement of the wiper blades is easy and can be done by the vehicle user himself. A wiper blade (including a wiper replacement rubber unit) as a replacement part is packaged in a packaging bag and is commercially available.

As packaging bags for packaging wiper blades, for example, JP-A-63-22366 (Patent Document 1), JP-A-7-251862 (Patent Document 2), and Utility Model Registration No. 3085978 (Patent Document 3) are available. mentioned.

Patent Document 1 and Patent Document 2 disclose that a wiper blade is housed in a blister pack formed of a rigid plate-like member such as a backing paper and a transparent plastic member molded according to the shape of the product. It is Patent Document 3 discloses that the wiper blade packaging bag is effectively used as an umbrella bag without being discarded.

JP-A-63-22366 JP-A-7-251862 Utility Model Registration No. 3085978

Since the wiper blade packaging bags of Patent Documents 1 and 2 are blister packs, it is necessary to devise the shape of the plastic member in order to mold them to match the shape of the wiper blade. In addition, since the packaging bag of Patent Document 3 is intended for use after use, an extra handle is attached as a packaging bag for wiper blades, and the structure is complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wiper blade packaging bag having a simpler structure adapted to the shape of the wiper blade and a method of manufacturing the same. aim.

A wiper blade packaging bag according to an aspect of the present invention accommodates a wiper blade therein. The wiper blade packaging bag has a long front sheet having one side edge and the other side edge, and one side edge and the other side edge, and the one side edge is fixed to the one side edge of the front sheet. and a long back sheet, one side edge and the other side edge, one side edge of which is fixed to the other side edge of the front sheet, and the other side edge of which is fixed to the other side edge of the back sheet. and a long gusset sheet.

Preferably, one longitudinal end of the front sheet, back sheet and gusset sheet is fixed to each other to form a closed end, and the other longitudinal end of the front sheet, back sheet and gusset sheet is an open end.

Preferably, the closed end has one side edge region of the gusset sheet secured to the sheet and the other side edge region of the gusset sheet secured to the back sheet, and is secured to the gusset sheets in the front and back sheets. The missing parts are glued together.

Preferably, a folded portion formed by perforations or line seals is provided at a position spaced downward from the opening end, and the header portion is formed by folding back at the folded portion.

Preferably, the header portion includes a first through hole and a second sheet longitudinally spaced apart from the first through hole at a position where the front sheet and the back sheet overlap and are folded back at the folded portion. Two through holes are provided, the first through hole being smaller than the second through hole.

A method for manufacturing a wiper blade packaging bag according to an aspect of the present invention is a method for manufacturing a wiper blade packaging bag that accommodates a wiper blade, wherein a long front sheet having one side edge and the other side edge is provided. and a long back sheet having one side edge and the other side edge, and a long gusset sheet having one side edge and the other side edge; the other side edge of the front sheet and a step of inserting a gusset sheet between the other side edge of the back sheet, the one side edge of the front sheet and the one side edge of the back sheet, the other side edge of the front sheet and the one side edge of the gusset sheet, and the back sheet; affixing the other side edge and the other end of the gusset sheet.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wiper blade packaging bag having a simpler structure adapted to the shape of a wiper blade and a method of manufacturing the same.

1 is a front view of a wiper blade packaging bag according to an embodiment of the present invention; FIG. 1 is a front view showing a state in which wiper blades are housed in a wiper blade packaging bag according to an embodiment of the present invention; FIG. 1 is a plan view of a wiper blade packaging bag according to an embodiment of the present invention; FIG. It is a bottom view of the wiper blade packaging bag which concerns on embodiment of this invention. FIG. 3 is a cross-sectional view taken along line VV in FIG. 2; It is the figure which expanded the upper part of the wiper blade packaging bag which concerns on embodiment of this invention, (a) is a front view, (b) is a rear view. FIG. 3 is a cross-sectional view taken along line VII-VII in FIG. 2; It is a schematic diagram which shows the manufacturing method of the wiper blade packaging bag which concerns on embodiment of this invention.

An embodiment of the present invention will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are denoted by the same reference numerals, and the description thereof will not be repeated.

<About the wiper blade packaging bag>
An example of a wiper blade packaging bag 1 according to the present embodiment will be described with reference to FIGS. 1 to 7. FIG. 1 and 2, the longitudinal direction indicated by arrow A1 is the vertical direction, and the width direction indicated by arrow A2 is the horizontal direction. Note that the wiper blade 40 in FIG. 2 is indicated by a two-dot chain line for easy understanding.

As shown in FIG. 1, a wiper blade packaging bag 1 according to the present embodiment is a packaging bag that accommodates a wiper blade 40 therein. The wiper blade packaging bag 1 will be described below. The structural features of the packaging bag of the present invention are: a long front sheet; a long back sheet fixed to one side edge of the front sheet; A long gusset sheet fixed to the other side edge of the front sheet and the other side edge of the back sheet. In the following description, the wiper blade packaging bag 1 is simply referred to as a packaging bag.

The wiper blade 40 wipes rainwater, dirt, etc. adhering to the window glass of an automobile or the like. In the present embodiment, the wiper blade 40 includes not only the overall structure including the rubber of the wiper and the metal fittings for holding the rubber, but also the single structure of only the replacement rubber without the metal fittings for the sake of convenience.

As shown in FIGS. 1 and 2, the packaging bag 1 is an elongated bag. The packaging bag 1 is open at the top and closed at the sides and the bottom. The packaging bag 1 has gussets (gussets), but unlike general packaging bags, the gussets are not provided on both sides of the packaging bag 1, but only on one side (the right side of the paper surface). It is

The packaging bag 1 is substantially entirely composed of a synthetic resin film. As the synthetic resin, various materials can be used, but for example, polyethylene, polypropylene and the like are mainly used. The packaging bag 1 has a vertical dimension of, for example, 500 mm or more and 1000 mm or less, and a width direction dimension of, for example, 20 mm or more and 100 mm or less.

As shown in FIG. 3, the packaging bag 1 includes a front sheet 10, a back sheet 20, and a gusset sheet 30. As shown in FIG. The front sheet 10 is elongated and has one side edge 10a and the other side edge 10b. The backing sheet 20 is elongated and has one side edge 20a and the other side edge 20b. Both the front sheet 10 and the back sheet 20 are rectangular and have substantially the same shape.

The surface of the front sheet 10 is provided with a front pattern 11, and the surface of the back sheet 20 is provided with a back pattern 21. - 特許庁These patterns include, for example, not only patterns, product names, etc., but also instructions for wiper blades. In the present embodiment, the front pattern 11 of the front sheet 10 is a product name, a pattern, etc., and the back pattern 21 of the back sheet 20 is a description of the wiper blade.

The gusset sheet 30 is elongated and has one side edge 30a and the other side edge 30b. The gusset sheet 30 has a rectangular shape, but is folded in two with the crease directed toward the inside of the bag (left side of the paper surface).

As shown in FIG. 3, in the packaging bag 1, one side edge 10a of the front sheet 10 and one side edge 20a of the back sheet 20 are fixed. The other side edge 10b of the front sheet 10 and the one side edge 30a of the gusset sheet 30 are fixed. The other side edge 20b of the back sheet 20 and the other side edge 30b of the gusset sheet 30 are fixed. These are fixed, for example, by heat sealing (heat sealing), and preferably have a constant width, for example, about 2 mm or more and 15 mm or less in this embodiment. As a result, the sides of the packaging bag 1 are closed.

One longitudinal end (lower side of the paper) of the packaging bag 1 serves as a closed end 2 in which a front sheet 10, a back sheet 20 and a gusset sheet 30 are adhered to each other. Referring to FIG. 4, the gusset sheet 30 is folded in two as described above, with one side edge region 31 located on the one side edge 30a side and the other side edge region 32 located on the other side edge 30b side. including. One side edge region 31 of the gusset sheet 30 is fixed to the front sheet 10 below the packaging bag 1 . The other side edge region 32 of the gusset sheet 30 is adhered to the back sheet 20 . Furthermore, below the packaging bag 1, the portions of the front sheet 10 and the back sheet 20 that are not fixed to the gusset sheet 30 are adhered to each other. A closed end 2 is thereby formed below the packaging bag 1 .

The other longitudinal end of the packaging bag 1 (upper side of the paper surface) is an open end 3 into which a wiper blade 40 is inserted. As shown in FIG. 5, when the wiper blade 40 is inserted into the packaging bag 1, the gusset sheet 30 rises. As a result, the packaging bag 1 has an outer shape that matches the shape of the wiper blade 40, and has a substantially triangular shape in a cross-sectional view.

With reference to FIG. 6 , a folded portion 16 is provided on the front sheet 10 and a folded portion 26 is provided on the back sheet 20 at a position spaced downward from the opening end 3 . The folded portions 16, 26 are formed by perforations. Perforations are provided across the front sheet 10 , the back sheet 20 and the gusset sheet 30 . The header portion 17 is formed by folding back the back sheet 20 at the folding portions 16 and 26 . Note that the folded portions 16 and 26 may be formed by other methods such as wire sealing.

The header portion 17 includes upper portions 13 and 23 provided on the side of the opening ends 3 (upper side of the paper surface) of the folded portions 16 and 26 and lower portions 12 and 22 provided on the lower side of the folded portions 16 and 26 . The lower portions 12 and 22 of the header portion 17 are provided with first through holes 14 and 24 , and the upper portions 13 and 23 are provided with second through holes 15 and 25 . The first through holes 14, 24 and the second through holes 15, 25 are circular, but may be triangular, such as triangular or rectangular. Further, as shown in FIG. 7, the outer shapes of the first through holes 14, 24 are the same, and the outer shapes of the second through holes 15, 25 are also the same.

The first through-holes 14 and 24 are spaced apart from the second through-holes 15 and 25 in the vertical direction (longitudinal direction). Specifically, as shown in FIG. 7 , the first through holes 14 and 24 and the second through holes 15 and 25 are overlapped when the front sheet 10 and the back sheet 20 are overlapped and folded at the folding portion 16 . position.

The outlines of the first through holes 14 and 24 are smaller than the outlines of the second through holes 15 and 25 . Specifically, the outer diameter dimension of the first through holes 14 and 24 is smaller than the outer diameter dimension of the second through holes 15 and 25 . As shown in FIG. 7, when the header portion 17 is formed by folding at the folded portions 16 and 26, even if the positions of the first through holes 14 and 24 and the second through holes 15 and 25 do not completely match, , the second through hole 15 cannot be seen through the first through hole 14 . Therefore, since it is not necessary to align the first through-holes 14, 24 and the second through-holes 15, 25, the packaging work can be simplified.

Further, as shown in FIG. 6(b), an adhesive tape 18 is provided above the back sheet 20. As shown in FIG. By removing the release paper on the adhesive tape 18 , the folded portions 16 and 26 can be folded back toward the back sheet 20 and fixed to form the header portion 17 .

<Regarding the manufacturing method of the wiper blade packaging bag>
An example of a method for manufacturing the packaging bag 1 of the present embodiment will be described with reference to FIG. In the present embodiment, the manufacturing of the packaging bag 1 is continuously performed using a large-sized apparatus, but in the following description, each process will be described for easy understanding. In FIG. 8, the drawing direction of the roll material 50 is called B, and the direction perpendicular to the drawing direction B is called the width direction.

Referring to FIG. 8(a), a roll material 50 to be the front sheet 10 and the back sheet 20 of the packaging bag 1 is prepared. On the body sheet 51 of the roll material 50, the front pattern 11 printed on the front sheet 10 of the packaging bag 1 and the back pattern 21 printed on the back sheet 20 of the packaging bag 1 are paired and arranged in the width direction. Two are printed.

With reference to FIG. 8(b), the body sheet 51 is continuously pulled out from the roll material 50, and the body sheet 51 is half-folded at the center in the width direction. Specifically, a flat plate (not shown) is sandwiched between the front pattern 11 and the back pattern 21, and the main body sheet 51 is folded in half. Furthermore, the edge of the mountain-folded portion is cut by the slit blade 61 to separate the first sheet 52 and the second sheet 53 to be stacked on the first sheet 52 .

With reference to FIG. 8(c), half-folded sheets 54 half-folded at the center are inserted into both ends of the first sheet 52 and the second sheet 53 in the width direction. The half-folded sheet 54 is a sheet to become the gusset sheet 30 in the packaging bag 1 . Although illustration is omitted, the half-folded sheet 54 is pulled out from a roll material like the main sheet 51 .

Referring to FIG. 8(d), widthwise end portions 55 of the first and second sheets 52 and 53, upstream portions 56 located upstream in the pull-out direction, and boundary portions between the front pattern 11 and the back pattern 21 are shown. 57 is heat-sealed (thermally welded). Regarding both ends 55, the upper piece 54a (FIG. 8(d)) of the half-folded sheet 54 is welded to the first sheet 52, and the lower piece 54b (FIG. 8(d)) of the half-folded sheet 54 is welded to the second sheet 53. It is heat-sealed so that it is welded to the As a result, both end portions 55, upstream portion 56 and boundary portion 57 are welded. In addition, in FIG.8(d) and FIG.8(e), the heat-sealed part is shown by the mesh pattern.

Referring to FIG. 8(e), perforations 16, 26 (perforation 26 is not shown) and first and second through holes 14, 24, 15, 25 (first and second through holes 14, 24, 15, 25) are formed by punching, for example. holes 24 and 25 (not shown) are formed. Two slit blades 62 cut both ends 55 to trim the outer shape of the packaging bag 1 , and one slit blade 63 cuts a boundary portion 57 . Furthermore, the upstream portion 56 is cut by the cutting blade 64 . In this manner, two packaging bags 1 can be manufactured in the width direction of the main body sheet 51 . Thereby, packaging bags can be mass-produced by a simple manufacturing method.

In this embodiment, the header portion 17 is formed by folding back at the folding portion 16, but the header portion 17 may be attached separately from the front sheet 10 and the back sheet 20. FIG. Moreover, the header portion 17 may not be provided in the packaging bag 1 .

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same scope as the present invention or within an equivalent scope.

1 packaging bag (wiper blade packaging bag), 2 closed end, 3 open end, 10 front sheet 10a one side edge, 10b other side edge, 11 front pattern, 12 lower part, 13 upper part, 14 first through hole, 15 Second through hole 16 Folding part (perforation) 17 Header part 18 Adhesive tape 20 Back sheet 20a One side edge 20b Other side edge 21 Back pattern 22 Lower part 23 Upper part 24 Second 1 through hole 25 second through hole 26 folded part (perforation) 30 gusset sheet 30a one side edge 30b other side edge 31 side edge region 32 other side edge region 40 wiper blade 50 roll material , 51 sheet, 52 first sheet, 53 second sheet, 54 both ends, 55 bottom, 56 border, 61, 62, 63 slit blade, 64 cutting blade.

Claims (5)

Formed with a synthetic resin film, house the wiper blades insideBy doing so, it becomes a substantially triangular shape that conforms to the cross-sectional shape of the wiper blade.In the wiper blade packaging bag,
an elongated front sheet having one side edge and the other side edge;
Having one side edge and the other side edge, the one side edge being on one side of the front sheetoverlapped and weldeda long back sheet;
It has one side edge and the other side edge, and the one side edge is on the other side edge of the front sheetoverlapped and welded, the other side edge on the other side edge of the back sheetoverlapped and weldedEquipped with an elongated gusset sheet,
one longitudinal ends of the front sheet, the back sheet and the gusset sheet are overlapped and welded to form a closed end;
The other longitudinal ends of the front sheet, the back sheet and the gusset sheet are opening ends,
A folded portion is provided at a position spaced downward from the open end,
The header portion is formed by folding back at the folding portion.A wiper blade packaging bag characterized by: The closed end has one side edge region of the gusset sheet fixed to the front sheet and the other side edge region of the gusset sheet fixed to the back sheet,
2. The wiper blade packaging bag according to claim 1 , wherein portions of said front sheet and said back sheet that are not fixed to said gusset sheet are fixed to each other. The wiper blade packaging bag according to claim 1 or 2 , wherein perforations or line seals are formed in the folded portion . In a wiper blade packaging bag containing a wiper blade,
a long front sheet having one side edge and the other side edge;
a long back sheet having one side edge and the other side edge, the one side edge being fixed to the one side edge of the front sheet;
a long gusset sheet having one side edge and the other side edge, the one side edge being fixed to the other side edge of the front sheet and the other side edge being fixed to the other side edge of the back sheet; with
one longitudinal ends of the front sheet, the back sheet and the gusset sheet are fixed to each other to form a closed end;
The other end in the longitudinal direction of the front sheet, the back sheet and the gusset sheet serves as an open end,
A folded portion is provided at a position spaced downward from the open end,
A header portion is formed by folding back at the folding portion,
In the header portion, a first through hole is provided at a position where the front sheet and the back sheet overlap when folded back at the folding portion, and the first through hole is spaced from the first through hole in the longitudinal direction. A second through hole is provided,
A wiper blade packaging bag , wherein the first through hole is smaller than the second through hole . Formed with a synthetic resin film, house the wiper blades insideBy doing so, it becomes a substantially triangular shape that conforms to the cross-sectional shape of the wiper blade.In the method for manufacturing a wiper blade packaging bag,
An elongated front sheet having one side edge and the other side edge, an elongated back sheet having one side edge and the other side edge, and an elongated shape having one side edge and the other side edge preparing a gusset sheet;
inserting a gusset sheet between the other side edge of the front sheet and the other side edge of the back sheet;
One side edge of the front sheet and one side edge of the back sheet, the other side edge of the front sheet and one side edge of the gusset sheet, and the other side edge of the back sheet and the other end of the gusset sheet ofoverlap and weldprocess and
One longitudinal ends of the front sheet, the back sheet and the gusset sheet are overlapped and welded to form a closed end, and the other longitudinal ends of the front sheet, the back sheet and the gusset sheet are opened. a step of forming an open end to
a step of forming a header portion by folding back to the back side at a folded portion provided at a position spaced downward from the opening end;A method for manufacturing a wiper blade packaging bag, comprising:

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