JPH0134873B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for manufacturing a package, and particularly to a method for manufacturing a package optimal for use in packaging circular containers.

(Prior art) For example, when selling nigiri sushi over the counter at a sushi restaurant, it is not only easier to take the nigiri sushi home and eat it, but also to arrange it in a round container similar to a rice table rather than packing the nigiri sushi in a normal square folding box. Eating delivered sushi can provide a similar atmosphere, so it has recently become widely used to sell nigiri sushi in round plastic containers that resemble the rice tables used in sushi restaurants.

By the way, as mentioned above, the sushi served in a round container is wrapped in a wrapping cloth made of plastic or the like for take-out and handed to the customer as a service, but wrapping the round container in a wrapping cloth requires at least two The parts must be tied together, which becomes a significant hassle when selling in large quantities. Furthermore, since a round container is wrapped in a square wrapping cloth, there are inconveniences such as the container tilting and the four corners of the container being exposed after wrapping, resulting in an unsightly appearance. Furthermore, in order to wrap a round container with furoshiki, the furoshiki must be spread out before wrapping, so a large space for wrapping must be secured in the store, and this kind of nigiri sushi for refilling is sold in large quantities. Since stores usually have small storefronts, it is difficult to provide the above-mentioned packaging.

For this reason, there is known a packaging body (Japanese Utility Model Publication No. 57-58050) in which a central cylindrical article insertion cylinder is formed and tie strings are connected to both ends of the packaging body.

(Problems to be Solved by the Invention) However, the packaging material disclosed in the above-mentioned publication has a structure in which a part of the film tube is left as a cylinder, and both sides of the film tube are cut alternately to form a knot.
The thickness of the charging tube is determined by the thickness of the film tube. As a result, in order to accommodate the size of the packaged items to be stored, it is necessary to manufacture several types of film tubes with different thicknesses, resulting in poor productivity and the need to cut out the tying string. Therefore, there is a disadvantage that there is a lot of wastage of materials, which increases the momentum and costs.

The present invention was made for the purpose of eliminating the above-mentioned problems of the prior art, and it is possible to form a charging tube portion of any thickness from film tubes formed with the same thickness, and To provide a method for manufacturing a package that does not cause waste during pick-up.

[Structure of the invention]

(Means for Solving the Problems) In order to solve the above-mentioned problems of the prior art, the present invention provides a film tube formed of a resin film that is arranged parallel to the axial direction of the tube at a predetermined distance on one side of the film tube. Two slits are made, and then they are cut at intervals corresponding to the width of the package to form a sealed body with welded side edges. The present invention is characterized in that an elongated knot is formed by opening the separated portion, and the space between the slits is formed to form a cylindrical portion for inserting the packaged article.

(Example) The present invention will be described below with reference to an example shown in the drawings.

As shown in FIG. 1, a package 1 formed according to the present invention has a tunnel-shaped article loading cylinder part 2 with open ends at the longitudinal center of a rectangular resin film. The portions extending to both ends of the charging cylinder portion 2 are used as knot string portions 3, 3 that can be tied to each other.

FIGS. 4A to 4C show the manufacturing method of the present invention. That is, as shown in FIG. 4A, a film tube 4 made of a resin film such as vinyl chloride or polyethylene is placed at a required interval (corresponding to the length L of the tube 2). Make two parallel slits 5, 5, then the fourth
As shown in Figure B, the side edges 6, 6 are fused together by fusing at intervals corresponding to the width B of the package 1 to form a sealed body, excluding the packaged material charging cylinder part 2. The other side edges 6, 6 portions are cut along cut lines 7, 7.

As a result, the slits 5, 5 and the cut line 7,
7, and the other parts except the packaged material charging cylinder part 2 are the 4th part.
It can be unfolded as shown in Figure C, and elongated knot cord parts 3, 3 are formed.

Therefore, the packaged material charging cylinder part 2 is formed into a tunnel shape with both ends open by the slits 5, 5, and the tie string parts 3, 3 are formed by unfolding the folds on both sides of the tube 4, which are originally continuous. Because it extends outward,
Even if the film tube 4 has a narrow width, the package 1 has the knots 3, 3 of a predetermined length.

If, for example, a circular sushi container 8 is inserted into the packaged material cylindrical portion 2 as shown in FIG. As shown, both ends of the packaged material insertion tube 2 are completely covered by the tie strings 3, 3, so there is no risk of the circular container 8 slipping out of the packaged material insertion tube 2, and moreover, the material is made of resin. If an opaque film is used, the top surface of the circular container 8 will be completely covered by the packaging material loading tube 2, so that the packaging material can be inserted between the four corners as in the case of wrapping with conventional furoshiki-type packaging material. There will be no inconvenience such as exposure. Since the knot is only tied between the left and right knot string parts 3, 3, the tying operation is only done in one place.
The packaging work is halved, and there is no need to place the item to be wrapped in the center and tie it from all sides, which is the case with wrapping cloths. This is especially effective for packaging at mass retail stores. Moreover, when packaging, all you need is a flat area where only the cylindrical part 2 for the packaged item can be placed, so you can use furoshiki. There is no need for a large space to spread out the products, and the packaging work can be done quickly and efficiently even in a narrow storefront.

〔Effect of the invention〕

As explained above, according to the present invention, two slits are made parallel to the axial direction of the tube at a required interval on one side of a film tube formed of a resin film, and then the width of the film tube as a packaging body is determined. A closed body with side edges welded is formed by cutting the slits at intervals corresponding to the slits, and the other side edges except between the slits are cut off, and the separated portions are opened from the slit portions to form a long and thin knot. Since the space between the slits is formed as a cylindrical portion for charging the packaged material, the film tube of the same thickness can be used regardless of the size of the packaged product. This can be done by simply changing the width of the fusion cut, so the film tube only requires one manufacturing process, and since the only thing that needs to be cut off is the fused side edges, there is no wastage of material. There is an effect that a package can be obtained at low cost.

Furthermore, the packaging body obtained by the present invention can be used to package objects that are difficult to package, such as round containers, without tilting or exposing a portion, and the packaging process is simple. It still has the advantage of not requiring a large space for packaging.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the appearance of one embodiment of the package obtained by the present invention, FIGS. 2 and 3 are perspective views showing the packaging situation, and FIGS. 4A, B, and C are the views shown in FIG. 1. It is an explanatory diagram showing a process of obtaining a package of. DESCRIPTION OF SYMBOLS 1... Packaging body, 2... Packaging material charging cylinder part, 3...
...Knot string part, 4...Film tube.

Claims (1)

[Claims] 1. By making two slits parallel to the axial direction of the tube at a required interval on one side of a film tube formed from a resin film, and then cutting them by melting at intervals corresponding to the width of the package. Form a sealed body with side edges welded, separate the other side edges except between the slits, open the separated portion from the slit portion to form a long and thin knot, and wrap the area between the slits. A method for manufacturing a package, characterized in that the package is formed to serve as a cylinder for stuffing.