JPS63162462A - Bag and bag device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a bag formed from a flexible sheet made of plastic film, paper, cloth, or a composite thereof, and a bag formed from a flexible sheet. and a string.

[Prior art and its problems] Conventionally, when carrying products or waste in a bag made of plastic film, etc., it is necessary to bundle the film at the mouth of the bag and grip this part, or to The film, etc. at the mouth was tied together, this part was bound, and this knotted part was grasped.

In these cases, the user had to carry the bag with the items inside while holding the bundled film or knotted part in front or at the side of the body. However, since the plastic film is slippery, it is inconvenient to handle it, and in order to avoid dropping the bag, the film must be tightly gripped, resulting in easy hand fatigue. Furthermore, if the items in the bag were heavy, the bag had to be held tight with both hands.

Therefore, it is conceivable to make one hole on the front and back sides of the bag opening, insert your fingers through these holes, grasp the bag opening, and carry the bag by carrying it, but the weight of the contents is larger than the two holes. Because of this, there is a risk that such plastic film bags may tear through the holes. Increasing the wall thickness of the opening so that the bag does not tear from the hole is troublesome for the wall construction and also leads to an increase in cost.

An object of the present invention is to provide a bag formed of a flexible sheet and a bag device that is easy to hold, convenient to carry, and inexpensive.

[Means for Solving the Problems] The bag of the present invention is formed of a flexible sheet, and four or more finger insertion holes are provided at appropriate intervals on the outer periphery of the opening of the bag. It is being

The bag device of the present invention includes the bag described above and a string that closes the opening.

[Function] When carrying the bag and bag device of the present invention, close the opening seal 1.
- are gathered up and down, and the fingers are sequentially inserted into the plurality of insertion holes and grasped.

Furthermore, in the bag device of the present invention, a string is wrapped around the opening below the insertion hole to close the opening.

[Example 1 Next, embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 show one embodiment of a bag 10 of the present invention. This bag is a flat bag made by connecting front and back sheets 12 and 14 made of plastic film at both left and right sides and at the bottom.
Three holes 18 are provided in each case. This hole 18 is an insertion hole for inserting a finger to grasp the opening 16 of the bag. It is arranged as follows.

When carrying products or waste inside this bag, the sheets at the opening 16 are gathered together and the opening 16 is grasped by expanding the fingers into the plurality of holes 18 one after another. In this way, a large number of holes 1
If you put your fingers in 8 and grasp it, the load applied to the mouth part 16 above the hole 18 will be dispersed, and the mouth part 16 will not be torn from the hole 18 even when carrying a fairly heavy object in the container. Note that if the sheet of the seam opening 16 is folded into a bellows shape so that the holes 18 coincide with each other, it is possible to easily pass a finger through the hole 18 (see FIG. 2).

Further, when opening a closed bag, by inserting a finger into the hole 18 and pulling it, the bag can be easily opened without the finger slipping.

The holes 18 may be of any size as long as a finger can fit therein, and the number of holes 18 can be freely selected from four or more, but if the holes 18 are too large or there are too many As a result, the strength of the mouth portion 1G decreases, so it is preferable to select an appropriate size and number depending on the strength of the sheet and the size of the bag.

The shape of the hole 18 is also not particularly limited. Further, the sheet at the hole 18 does not have to be completely removed from the front and back sheets 12.14 of the bag, and even if only a portion is left uncut and the cut-off piece is attached to the bag 10, the sheet can be inserted with a finger. There is no problem in grasping it.

Although not shown, wide gussets are provided on both sides of the bag.
A hole 18 may be provided in this gapit portion.

The hole 18 into which the finger is inserted can be easily made using a punching die or the like, and no special equipment is required, so that manufacturing costs do not increase.

When carrying things inside the bag, by wrapping a string around the gathered mouth part 16 and tying it, the mouth is closed and the contents do not spill out.

This string may be provided separately from the bag, or may be attached to the side edge of the bag opening 16, as shown in FIGS. 3 and 10.

FIG. 3 shows that the opening side edge 22 of the bag 10 shown in FIG.
4 from the center to the top edge, attach adhesive tape piece 26
Mounting installed by r! 120 is shown.

The string 24 is attached to the bag 10 along the mouth side edge 22 of the bag 10 at the point where it is attached, and also along the front and back sheets 12.1 of the bag 10.
The bag 10 is firmly attached to the mouth side edge 22 of the bag 10 by being adhered to the tape piece 26 pasted over the bag 10.

Therefore, when something is put in the bag 10, as shown in FIG.
The bag 10 can be closed reliably and easily by wrapping the long portion 28 below the point and tying its end to the other end 30 of the string. After that, the bag 10 can be easily carried by extending one's fingers into the plurality of holes 18 in the bag opening 16 and grasping the opening 16.

When the string 24 is wrapped around the opening 16, the string 24 wraps around the side edge 22 of the bag.
Since it is pulled further outward, the tape piece 26 is also pulled in the direction shown by the arrow in FIG.

Since this direction is parallel to the bag 10, the tape piece 2
A shear force acts between 6 and the outer surface of the front and back sheets 12 and 14. On the other hand, as shown in FIG.
When it is attached to the sheet surface of the bag 10 at 6, a tensile force acts in a direction perpendicular to the bag 10, as shown by the arrow.

Generally, when a piece of tape is attached to a sheet, the adhesion between the tape piece and the sheet is stronger against a force in a shear direction than against a force in a vertical direction, and the tape piece is less likely to peel off. Therefore, if the tape piece 26 is attached as in this embodiment, even if force is applied to the string 24 outward from the bag 10, the tape piece 26 will not easily peel off, and the string 24 will also be difficult to come off.
preferable.

In the embodiment shown in FIG.
The adhesive tape pieces 26 are attached at a slight distance from each other, and the adhesive surfaces of the adhesive tape pieces 26 meet between the string 24 and the mouth side edge 22. Therefore, since the string 24 comes into close contact with the adhesive tape piece 26 over almost the entire circumference, the adhesion between the string 24 and the adhesive tape piece 26 becomes stronger and more reliable. This effect is particularly remarkable when the string 24 is a round string.

Next, one method of manufacturing the bag device 20 shown in FIG. 3 will be described with reference to FIG. 8.

32 is a flat cylindrical plastic film;
It is made to run intermittently at the same time as the string 24 along the side edge 34. When the cylindrical film 32 and the like are stopped, the opening-shaped adhesive tape piece 26 is inserted from the right side of the drawing so as to sandwich the string 24 and the cylindrical film 32. At the same time, a hole punching die (not shown) descends from above the cylindrical film 32 to punch holes 18 in the cylindrical film 32. At this time, the hot iron 36 and the cutter 38 also descend in parallel to the cylindrical film 32. The shaped film 32 is welded and cut, and the string 24 is also cut.

After that, the cylindrical film 32 and the like are run at a predetermined interval,
If you repeat the above process, the bag device will be made one after another for ￥17
)M can be done.

The flat cylindrical film 32 used in this manufacturing method may be of any type as long as the front and back films are connected at both edges; for example, one that is integrally formed, or one that is formed by overlapping two films. Those with both edges fixed, or 1
It may be made by folding a sheet of film and fixing one edge of the film. Here, as a first step to fix the side edges,
There are welding, welding, crimping, etc.

In the embodiment shown in FIG. 3, the string 24 is attached to the mouth side edge 22 of the bag 10 from the center to the upper end, but the attachment point is not particularly limited; for example, the string 24 is attached at the center. You can do it like this.

Further, there is no particular limitation on the length of the string 24.

As shown in FIGS. 3 and 5, the length may be necessary and sufficient to wrap around the bundled opening 16, or the
As shown in the figure, when the bag 10 is placed in a plastic container 40 or the like and expanded, and the opening 1G of the bag 10 is folded back to the outside of the open end of the container 4o, a length that can be tied and fixed is shown. It can also be used as a salad.

By fixing the bag 10 to the container 40 or the like in this way, it is possible to prevent the bag 10 from sliding down into the container 40 due to the weight of products, waste, etc. This is particularly advantageous when working in close quarters.

Although one M124 is attached to the bag device 20 of this embodiment, the number of strings 24 is not limited to this and may be two or more. In that case, a plurality of pieces may be attached to the same location on the mouth side edge 22, or may be attached to different locations.

Further, the string 24 may be formed of an elastic material such as rubber. In that case, when closing the bag 10, the elastic string 24 is wound around the bundled bag opening 16, and the remaining part of the string 24 is pushed between the wound portion and the bag opening 16. Just by inserting it, the string 24 will be tightened by its elasticity and will surely stop and will not come undone. In addition, the elasticity of the string 24 further tightens the mouth portion 16, thereby improving the sealing performance of the bag 10. On the other hand, as described above, when fixing to the plastic container 40 or the like, if the elastic string 24 is shorter than the outer circumference of the container 40, the elasticity will improve the adhesion between the bag 10 and the container 40.

The bag device 20 shown in FIG. 10 is characterized in that the string 24 is formed into a loop shape. The loop-shaped string 24 may be of any length as long as it can be wrapped around the bundled bag opening 16, but in particular, it is preferable to use a string with the same length as the outer circumference of the plastic container 40, etc. In this case, the bag 10 can be prevented from slipping into the container 40 by simply folding back the bag opening 16 at the front end of the container 40 and hooking the loop-shaped string 24 thereon.

In addition, when the loop-shaped string 24 is made of an elastic material, if the circumference of the string 24 is made shorter than the outer circumference of the plastic container 40, etc., the elasticity of the string 24 can move the bag 10 into the plastic container 40, etc. It can be easily and securely fixed to the however,
When the loop-shaped elastic string 24 is used only to close the mouth 16 of the bag 10, the length of the string 24 shown in FIG. 10 is sufficient.

It should be noted that the ease with which the bag is closed and the good airtightness of the closed bag are the same as in the embodiments using the elastic strings described above.

As the loop-shaped elastic string, it is also possible to use a knotless rubber band.

In each of the above embodiments, in order to attach the set 24,
Adhesive tape piece 26 with adhesive applied to the entire surface to be adhered
was used, but the present invention is not limited thereto. For example, as shown in FIG. 11, an adhesive tape piece 26 having a belt-like area 42 without adhesive in the center may be used. When the string 24 is attached with such a piece of tape 26, as shown in FIG.
It is possible to move around because it does not touch the surface. As a result, when the strings are tied to form a loop-shaped string 24, the knot 4
6 can be freely moved to a convenient position. Also, string 24
Since it does not come into contact with the adhesive, the material of the string 24 can be freely selected without being affected by the adhesive.

In each of the above embodiments, a bag formed of a plastic film was shown, but the bag of the present invention may be formed of a flexible sheet other than a plastic film, such as paper, cloth, or a combination of these and a plastic film. You can.

Furthermore, the bag in the present invention may be of any flat type, as long as it is formed by connecting front and back flexible sheets at both left and right sides and at the bottom. For example, two sheets stacked one on top of the other and fixed on both the left and right sides and the bottom;
One sheet is folded and the folding line is used as the bottom of the bag, and both sides are fixed. (If the folding line is used as one side of the bag, the other side and the bottom can be fixed.)
Alternatively, there is one in which the bottom of an integrally molded flat cylindrical sheet is fixed. In addition, means for fixing the both sides and the bottom include welding, adhesion, pressure bonding, and 1 liter bonding.

Although not shown, if the bag is made into a double bag and a string is attached only to the outer sheet, by pulling the string strongly, etc.
Even if the sheet is damaged during installation, the inner sheet will not be damaged, so items inside the bag will not come out.

The bag and bag device according to the present invention can be used as various packaging bags, transportation bags, garbage bags, etc. Furthermore, if small holes (ventilation holes) are provided on the front and back sheets of the bag, stuffiness can be prevented and the bag can be used as a bag for storing and transporting vegetables, etc.

[Effects of the Invention] By gathering the sheets at the mouth of the bag and bag device of the present invention on a sliding door containing items, and grasping the bag by sequentially inserting the fingers into the plurality of holes at the mouth, the bag can be easily carried. I can do it. In addition, since the fingers are inserted into multiple holes to grasp the object, the load on the mouth above the holes is distributed, even when carrying quite heavy objects.
The mouth part will not tear from the hole.

In general, in the bag device of the present invention, the opening can be closed by wrapping a string around the opening below the hole.
Items inside the bag will not spill out.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing an embodiment of the present invention.
FIG. 3 is a perspective view showing another embodiment; FIG. 4 is an enlarged cross-sectional view of the main part along line rV-IV in FIG. 3; FIG. 5 is a closed state. 6 is an enlarged cross-sectional view of a main part showing a comparative example, FIG. 7 is an enlarged cross-sectional view of a main part showing another example, and FIG. 8 is an example of a manufacturing method. 9 is a perspective view showing a state fixed to a container, FIG. 10 is a perspective view showing still another embodiment, FIG. 11 is a front view showing an adhesive tape piece, and FIG. 12 FIG. 2 is an enlarged cross-sectional view of a main part showing still another embodiment. Explanation of symbols 10... Bag 16... Mouth 18... Finger insertion hole 20... Bag device 22... Side edge of mouth
24...Hitobaka 1 person 1g-5, □2; 313802 No. 2, Name of the invention Bag and bag device 3, Relationship with the case of the person making the amendment Patent applicant No. 17-11, Bunnosato 3-chome, Abeno-ku, Osaka-shi, Osaka Prefecture Nakamura Seibag Co., Ltd. Representative Toshio Nakamura 4; Agent Address: 6th Floor, 8th Floor, Harada Building, 2-9 Kawaramachi, Higashi-ku, Osaka 541
, drawings subject to correction. 7. Contents of the amendment As shown in the engraving and attached sheet of the drawing originally attached to the application (in the content?

Claims (1)

[Scope of Claims] 1. A bag formed from a flexible sheet, characterized in that four or more finger insertion holes are provided at appropriate intervals on the outer periphery of the mouth. 2. A bag made of a flexible sheet, characterized by having four or more finger insertion holes provided at appropriate intervals on the outer periphery of the mouth, and a string that closes the mouth. Device. 3. The bag device according to claim 2, wherein the string is attached to a side edge of the opening of the bag below the insertion hole. 4. The bag device according to claim 2, wherein the string is provided separately from the bag.