JPH0680667U - Packaging structure of packaging film - Google Patents

Abstract

(57) [Summary] [Object] To provide a packaging structure of a packaging film which can be opened quickly and easily without using a tear tape. In the packaging structure in which the peripheral surface of the packaged object 1 is wrapped with a wrapping film 2, the overlapping portions 10 are joined, and the open end portions 4 and 5 extending from this are folded and joined. The first cuts 11A and 11B are formed with the overlapping portion sandwiched therebetween, and the second cuts 12 that are in a direction substantially orthogonal to each other in the folded state are formed in a portion facing the first cuts 11A and 11B. Then, the opening end piece 4A having the first cut is folded and then the opening end piece 4B having the second cut is folded. At the time of opening, tearing is performed by using the second notch as an opening and the tear is continued to the first notch, and further, the film is torn along the joint portion 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a packaging structure for packaging a rectangular packaged object such as a tape cassette with a packaging film.

[0002]

[Prior art]

 Generally, a rectangular product such as a tape cassette is sold in a packaging film such as cellophane. Here, a general packaging structure using a packaging film will be described with reference to FIGS. 4 to 7. FIG. 4 shows a tape cassette housed in a protective case, for example, as an object to be packaged. When packaging the tape cassette 1 with a packaging film made of a material such as cellophane, polypropylene or polyethylene terephthalate, first, the packaging film is formed along the circumferential surface formed by the side surfaces 1W, 1X, 1Y, 1Z of the tape cassette 1. The film is packaged by 2, and the overlapping portion where the edge portions of the films are overlapped is heat-sealed to form the joint portion 3.

Next, as shown in FIG. 6, both open end portions 4 and 5 of the packaging film 2 extending from the unwrapped surfaces 1E and 1F which are both end surfaces in the longitudinal direction of the tape cassette 1 are formed by a known method. It is folded inward and this part is heat-sealed and joined. In this type of packaging structure as shown in the figure, a well-known tear tape 6 for opening is attached to the inner surface of the packaging film 2 in order to facilitate tearing of the packaging film, and the tape cassette 1 is attached to the tape cassette 1 during packaging. It is designed to be wrapped around. When the packaging film 2 is opened, one end of the tear tape 6 is pulled to tear the packaging film 2 and divided into upper and lower parts as shown in FIG. 7 into a removal portion 7 having a small area and a residual portion 8 having a large area. After separation, the tape cassette 1 was taken out after this. It should be noted that the same packaging structure was adopted when packaging not only tape cassettes but also rectangular objects to be packaged.

[0004]

[Problems to be solved by the device]

 However, in the packaging structure described above, when the packaging film 2 is unsealed, the film residual portion 8 having a large area is in close contact with the tape cassette 1 and is difficult to remove. Therefore, between the tape cassette 1 and the residual portion 8 is difficult. I put my finger in the torn and broke it, but at this time, it was difficult to put in my finger, and it took a long time to remove the residual portion 8. Therefore, there is an inconvenience that it may not be in time in an emergency when it is desired to record immediately. Furthermore, the equipment cost for mounting the tear tape was also high. Therefore, as shown in JP-A-3-27966, a structure using a packaging film having orientation in the tearing direction has been proposed as a structure without using a tear tape, but in this case, the packaging film is also large. There is still a problem that the area side portion and the small area side portion are divided into two parts, and in particular, it takes time to remove the film on the large area side portion.

Therefore, the present applicant has proposed a packaging structure as shown in FIG. 8 in the previous application (Japanese Patent Application No. 3-340018). In this structure, the folding order in at least one opening end 4 is reversed from the normal order, that is, the opening end piece 4A having no joint 3 is folded first, and then the joint 3 is provided. The open end piece 4B is folded and exposed to the upper side. The opening end piece 4B is provided with two notches 9A and 9B so as to sandwich the joint portion 3, and the portion where the notch is provided is not joined to this lower folded portion by heat sealing. This is the non-bonded portion 10.

When opening the packaging film, the upper opening end piece 4B corresponding to the non-bonded portion 10 is raised, and the packaging film 2 is torn along the bonding portion 3 by pulling in the direction of the arrow A to open the packaging film. Becomes However, in order to adopt this packaging structure, it is necessary to change the folding order of the opening end pieces 4A and 4B in the opening end portion 4, which requires a drastic design change or modification of conventional packaging equipment. Therefore, there was a problem that it took a lot of money and time. The present invention has been made in view of the above problems and was devised to effectively solve them. The purpose of the present invention is to package a packaging film that can be opened quickly and easily without using tear tape. To provide the structure.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a packaging film in which one circumferential surface of a rectangular package is packaged with a packaging film, the overlapping portions of the packaging film are joined together, and the packaging film extends from the package. In a packaging structure of a packaging film in which the open ends of the opening ends are mutually folded and joined to each other, a first notch is provided sandwiching the overlapping portion of the opening ends, and the first cut is opposed to the first notch. The opening end is provided with a second notch which is in a direction substantially orthogonal to the direction of the first notch in the folded state, and the opening end piece provided with the first notch is folded and then the The opening end piece provided with the second notch is configured to be folded.

[0008]

[Action]

 Since the present invention is configured as described above, when the packaging film is opened, the second notch of the opening end piece positioned on the upper side is used as an opening and a nail or the like is inserted into the opening to pierce and tear the portion. In the direction, that is, the first cut side. This allows the crevice to be connected to the first notch of the underlying open end piece, and further pulling will cause the wrapping film to be easily torn along the joined overlap.

[0009]

【Example】

 An embodiment of the packaging structure of the packaging film according to the present invention will be described below in detail with reference to the accompanying drawings. 1 is a perspective view showing a main part of a packaging structure of a packaging film according to the present invention, FIG. 2 is a perspective view showing a process of packaging an object to be packaged with a packaging film, and FIG. 3 is a packaging structure shown in FIG. It is explanatory drawing which shows the state which opens a packaging film. The same parts as those of the conventional structure are designated by the same reference numerals.

In the present embodiment, a case will be described in which a tape cassette 1 as shown in FIG. 4, for example, as a rectangular package is packaged with a packaging film 2 made of cellophane, polypropylene, polyethylene terephthalate or the like. . Before wrapping, the wrapping film 2 is, for example, in the shape of a rectangle that is slightly larger than the total surface area of the tape cassette 1 and is formed by the side surfaces 1W, 1X, 1Y, 1Z of the tape cassette 1. Wrap along the surface and package. At this time, the edge portions of the packaging film 1 are overlapped with each other by a slight width, and the overlapping portion 10 is heat-sealed and joined to form the joining portion 3 (see FIG. 2).

In this case, the packaging film 2 is cylindrically extended at both ends in the length direction of the tape cassette 1 to form open end portions 4 and 5, respectively, and both end surfaces of the tape cassette 1 are the unwrapped surface 1E and the unwrapped surface 1E, respectively. It is configured as 1F. Then, the short-length open end pieces (corresponding to the thickness portion of the tape cassette) at the open end portions 4 and 5 of the film are first folded inward, and then the long-length open end pieces 4A, 4B, 5A and 5B are folded inward and heat-sealed to join them (see FIG. 1). In this case, one of the two open ends 4 and 5, in the illustrated example, the open end 4 located on the left side in FIG. Two first notches 11A and 11B are formed in advance with 3 in between. Then, the second cuts 12 are formed in advance in the portions facing the first cuts 11A and 11B in a direction substantially orthogonal to the direction of the first cuts 11A and 11B.

Specifically, in this embodiment, one first long open end piece 4A forming the open end portion 4 located on the left side has two first notches 11A and 11B with the joint portion 3 formed therebetween. A second notch 12 is formed in the other long opening end piece 4B, and the first notch 11A, 11B is first formed as shown in FIG. After the folding, the other long opening end piece 4B having the second cut 12 is folded inward so that the tips thereof overlap, and the heat sealing is performed as described above.

By forming the above-mentioned notches, when the opening end pieces 4A and 4B are folded as shown in FIG. 1, the notch direction of the first notches 11A and 11B and the notch direction of the second notches 12 are formed. Will be substantially orthogonal. In this case, the second notch 12 is within the range of facing the respective ends of the first notches 11A and 11B which are the lower side when folded, and the length L1 thereof is two first notches 11A and 11B. It is preferable to set the length approximately equal to the distance between them. That is, the second notch 12 is set at a position and a length such that when the opening is opened from the second notch 12, the crevice can be easily connected to the first notches 11A and 11B. Further, the second notch 12 is preferably formed at a position where it does not overlap with the opening end piece 4B located below in order to facilitate tearing. Further, as long as the crevice from the second notch 12 can be easily connected to the first notches 11A and 11B in this way, the shape and position of these notches are not particularly limited.

When opening the wrapping film 2 from the state in which the tape cassette 1 is wrapped with the wrapping film 2 as described above, first, the second notch formed in the upper opening end piece 4B is formed. This part is pulled in the tearing direction, that is, in the direction in which the first notches 11A and 11B are located, by raising a nail or the like on 12, which causes a rupture in the opening end piece 4A, and this rupture immediately occurs at the other opening end. By continuously connecting or connecting to the two first notches 11A and 11B provided on the piece 4B and continuing pulling, the packaging film 2 is completely left and right along the joint 3 and the overlapping portion 10 as shown in FIG. Will be torn. In this case, in the packaging film 2, since the joint 3 is thickened due to polymerization, the strength is stronger than the other portions, and the joint 3 continues to the lower end in the figure without causing a break during tearing. Since the film can be torn by the tape cassette, the film can be completely peeled off from the upper end to the lower end of the tape cassette 1, and therefore the film can be opened quickly and easily.

As described above, according to this embodiment, since the film itself is opened at once without being divided into two parts by tearing of the film, there is no left behind unlike the case of the conventional structure, and the film can be quickly removed. It can be opened easily. Further, since the tear tape is not used, it is possible to suppress the inconvenience in design and the increase in equipment cost due to this. In the above embodiment, the case where the tape cassette is packaged as the object to be packaged has been described, but the present invention is not limited to this, and it is needless to say that the present invention can be applied to all rectangular shapes. Further, the procedure for folding the opening end is the same as in the case of the conventional structure, so that it is possible to use the existing equipment.

[0016]

[Effect of device]

 As described above, according to the packaging structure of the packaging film of the present invention, the following excellent operational effects can be exhibited. The first and second cuts are provided at the open end of the packaging film and folded, and when opening, this part is pulled to tear along the joint, so the film does not have to be separated into two. The film can be torn quickly and easily at one time, and opening can be performed quickly. Since the tear tape is not required, the inconvenience that accompanies this can be eliminated, and the equipment for the tear tape is not required, and the packaging cost can be suppressed. Further, since the procedure for folding the opening end is the same as in the case of the conventional structure, the present invention can be adopted without extra equipment cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a packaging structure for a packaging film according to the present invention.

FIG. 2 is a perspective view showing a process of packaging an object to be packaged with a packaging film.

FIG. 3 is an explanatory view showing a state in which a packaging film is opened in the packaging structure shown in FIG.

FIG. 4 is a perspective view showing a tape cassette that is an object to be packaged.

FIG. 5 is a diagram showing a packaging process of the article to be packaged shown in FIG. 4.

FIG. 6 is a view showing a state in which a tear tape for opening is pulled in a conventional packaging structure.

FIG. 7 is a diagram showing an opening process in the conventional packaging structure shown in FIG.

FIG. 8 is a perspective view showing a packaging structure previously disclosed by the applicant.

[Explanation of symbols]

1 ... Tape cassette (packaged object), 1W to 1Z ... Side surface,
2 ... wrapping film, 3 ... junction, 4 ... open end, 4A,
4B ... Opening end piece, 5 ... Opening end, 10 ... Overlap portion, 1
1A, 11B ... 1st notch, 12 ... 2nd notch.

Claims (1)

[Scope of utility model registration request] 1. A wrapping film is used to wrap one circumferential surface of a rectangular packaged object, the overlapping portions of the wrapping film are joined together, and the open ends of the wrapping film extending from the packaged object are inside each other. In a packaging structure of a packaging film, which is configured to be folded in and joined to, a first notch is provided while sandwiching the overlapping portion of the opening end portion, and
A second notch is provided in the opening end portion facing the notch in the folded state in a direction substantially orthogonal to the direction of the first notch, and after the opening end piece provided with the first notch is folded in A packaging structure for a packaging film, characterized in that the opening end piece provided with the second notch is folded.