JPH0667317U - Easy-open carton - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to obtain a Lapland type carton that can be fully opened along the ridgeline of the top surface of the carton and keeps the shape of the box after opening. A wrap-round type carton that has cuts such as zippers and perforations on the top ridge so that it can be opened over the entire ridge of the top surface of the carton or over most of the ridge. A window punching process or a cutting process is applied to the middle flap of the flaps that are provided and the top plate, the bottom plate, and the side plate, and the adhesive is applied to this portion to integrally bond the three flaps, It is a carton that does not decompose into the original single-wafer state even after opening the surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an easily openable carton that can be used for individually packed butter, margarine, chocolate, etc., or a cake such as cheese cake, or a dessert carton such as castella that is cut into pieces and then eaten.

[0002]

[Prior art]

 A carton that can open the entire top surface of the carton is disclosed in Japanese Utility Model Laid-Open No. 63-131918. Also, a C-shaped opening is provided on the top surface of the carton, and a zipper on the side wall divides the carton into two parts, the body and the lid. A carton that can be fully opened by connecting on the back is known from Japanese Utility Model Publication No. 59-11073.

[0003]

[Problems to be solved by the device]

 In the case of Japanese Utility Model Laid-Open No. 63-131918, since the entire top surface of the carton can be opened, the contents can be taken out easily, but since the flaps are inserted and fitted together, the shape of the box is maintained when the top surface is opened. Since it cannot be decomposed into the original single-wafer state, it has no function to retain the contents and may be dispersed. In the case of Japanese Utility Model Publication No. 59-11073, the top surface of the carton can be opened in a C shape, but it is not convenient to take out the contents because the whole surface is not opened. In order to make it easier to take out the entire contents, it is complicated to divide the body and lid into two parts by a zipper on the side wall and divide them into the body and the lid. Therefore, the purpose of the present invention is to obtain a lapland type carton that can be fully opened along the ridge of the top surface of the carton and keeps the shape of the box after opening.

[0004]

[Means for Solving the Problems]

 This plan provides the following cartons to achieve the above objectives. That is, a lapland type carton that is formed into a box shape by gluing, inserting, and fitting, and is opened over the entire ridgeline of the surface forming the top surface of the carton or over the ridgeline of the majority. To prevent this, cuts such as zippers and perforations are provided on the ridge of the top surface, and the middle flaps of the flaps derived from the top plate, bottom plate, and side plates are punched or cut. This is a carton that does not decompose into a single sheet after the top surface is opened by applying three parts of the flap by applying an adhesive to the part.

[0005]

[Action]

 Even if the carton is completely or partially opened along the ridgeline of the top surface of the carton, the middle flap of the three flaps derived from the top plate, the bottom plate and the side plate is subjected to window punching or cutting and adhesive is applied to this part. Since the three flaps have been applied, they are integrated and do not decompose into the original single-wafer state, so they are suitable for protecting and storing the contents.

[0006]

【Example】

 Embodiments shown in the drawings will be described below. FIG. 1 shows a developed state of the carton according to the present invention. Reference numeral 1 denotes a top plate, which is a front plate 11 and a rear plate 1 having front and rear inner flaps 4 and 4'consecutively connected via a folding line 10. 1'is continuously provided, and intermediate flaps 5 and 5'are further provided at the front edge and the rear edge of the top plate 1, and the ridge line (folding portion) has a cut 2 which leaves a V-shaped cut mark. is there. Reference numeral 3 is the initial opening, and reference numeral 7 is an obliquely formed cut extending from the initial opening 3 to the cuts 2 and 2 on the front and rear ridges. Further, a bottom plate 9 is continuously provided on the rear plate 11 ', and outer flaps 6 and 6'are continuously provided on the front edge and the rear edge of the bottom plate 9 through fold lines 10, and further, the body flap 12 is provided on the side. It is connected to the edge via a folding line 10. Then, the back plate 11 'is raised with respect to the bottom plate 9, the top plate 1 is folded back on this, and then the front plate 11 is raised, and the inner flaps 4, 4'and the outer flaps with respect to the intermediate flaps 5, 5'. A box is assembled as shown in FIG. 2 by overlapping the flaps 6 and 6'and attaching the flap 12 to the front plate 11.

According to the present invention, in the wrap round type carton as described above, the intermediate flaps 5 ′, 5 ′ are provided with window punches 8 and 8 ′, or are provided with a cut 13 as shown in FIG. 10. As shown in FIGS. 7, 9 and 10, when the adhesive a is applied to the intermediate flaps 5 and 5'having the window punches 8 and 8'or the cuts 13 as described above, the inner flaps 4 of the three-layer flaps, 4'and the outer flaps 6 and 6'are adhered to each other with an adhesive a through the window punches 8 and 8'and the cut portions 13 to form the three flaps as one body. Therefore, even if the top surface is opened from the initial opening 3 using the slit 2 as shown in FIG. 3 or 5, the carton does not disassemble into the original single-wafer state as shown in FIG. The opening shown in FIG. 3 is initially performed from the opening 3 and the opening 7 is advanced through the cut 7. After reaching the cut 2 provided on the ridgeline of the intermediate flaps 5 and 5 ', the opening is further continued along the ridgeline and the back plate 11 is formed. The top plate 1 is to be removed at the ‘break’. The unopened parts 1, 1'are then removed. Since the one shown in FIG. 5 is opened by using the cuts 2 on all the ridges, it is not necessary to remove the unopened portions 1'and 1'as shown in FIG. It should be noted that it is convenient to insert the perforations 10 'in the fold line portion of the front plate 11 so that the front plate 11 can be opened.

[0008] As described above, a wrap round type carton that completes the shape by making a box from a single-leaf blank is provided with a cut line and opened, but a zipper or perforation line as shown in the figure or a combination line thereof is provided. To open. The break has the same easiness of folding as the ruled line, and therefore the ruled line can be used instead. Depending on the purpose of use, whether to fully open the top surface or leave a part of the top surface is selected, but multiple initial opening ports are provided to improve the opening property. It may be wide.

As shown in FIG. 6, in a normal wrap round type carton or corrugated board, two flaps 14, 15 and 15 ′ inside and outside are adhered a to complete a box shape. In this case, the butting surfaces of the flaps 15 and 15 ′ are joined together. A slight gap s is generated, and perfect sealing cannot be performed. In order to completely prevent foreign matter and dust from entering depending on the intermediate food and its inner packaging form, the present proposal has outer flaps 6 and 6'as shown in FIG. In general, boxes and flaps are usually bonded by applying hot melt adhesive on one side and then bending the other side and pressing it strongly. With this method, the above-mentioned three overlapping flaps cannot be integrated with an adhesive. In other words, three flaps can be overlapped to prevent a gap, but only the outer flap and the middle flap can be bonded together by the ordinary bonding as described above, and the inner flap remains folded. In this condition, if the flaps are simply inserted and fitted and the top surface is fully opened, or if it is opened for the most part, the carton will either be disassembled into the original sheet blank state, or it will be partially disassembled and Since the shape cannot be maintained and the function of retaining the carton's box shape is lost, the configuration of this plan was adopted.

One of them is that the intermediate flaps 5 and 5 ′ on the hot melt application side are partially subjected to a window punching process 8 in accordance with the application position, and the inner flaps 4 and 4 ′ are also passed through the window punching process 8. The hot-melt coating is adopted and the three flaps are bonded together. In addition, as shown in FIG. 10, the intermediate flaps 5 and 5'to which hot melt is applied are partially cut, and the inner flaps 4 and 4'are also applied with hot melt through the cut portions. is there.

From the above, three flaps derived from the side plate composed of the bottom plate 9 and the top plate 1 and the front plate 11 and the back plate 11 ', that is, the intermediate flaps 5 and 5', the outer flaps 6, 6 ', the inner flaps 4, 4'are bonded and integrated, so that the ridgeline between the top plate 1 and the front and back plates 11 and 11' and the ridgeline between the top plate 1 and the intermediate flaps 5, 5 '. Since the flaps are also integrally bonded to the bottom plate 9 even if the top surface is completely opened by cutting, the carton can maintain the shape of the box without being disassembled into the original sheets. Therefore, the carton whose top surface can be fully opened is easy to take out the contents and has excellent workability. In addition, the box-shaped holding function is suitable for protecting and storing the partially remaining contents. The zipper and the perforation provided on the ridge of the top surface are for the purpose of facilitating the opening, but especially when the zipper is opened, a remarkable V-shaped cut mark remains as shown in FIGS. 11 and 14. As shown in FIG. 12, by combining the zipper 2 having a V-shaped cut mark and the perforations 2 ', it is possible to leave a V-shaped cut mark on the ridge line at an arbitrary pitch. Further, there is an advantage that the contents can be easily quantified by collating the V-shaped cut marks remaining at predetermined positions on the vertical and horizontal ridges. In any case, a zipper or perforation, which has strength suitable for carton moldability, impact resistance during transportation, and opening property during use, and a combination of these are provided.

[0012]

[Effect of device]

 According to the present proposal, in the wrap round type carton, the three flaps derived from the bottom surface, the top surface and the side plate are bonded and integrated, so that the ridge between the top surface and the flap is cut. Even if the top surface is fully opened, the carton does not disassemble into the original, single-wafer state, and the shape of the box can be maintained. Therefore, the contents can be easily taken out, the workability is excellent, and the box-shaped holding function is suitable for protecting and storing the partially left contents.

[Brief description of drawings]

FIG. 1 is a development view of a wrap round type carton of the present invention.

FIG. 2 is a perspective view showing an initial opening provided on a ridge (ruled line).

FIG. 3 is a perspective view showing an opened state.

FIG. 4 is a perspective view of a wide initial opening.

FIG. 5 is an initial unsealed state diagram in which all unsealing is performed along a ridge line.

FIG. 6 is a perspective view of a lap round type carton in which a gap is generated.

FIG. 7 is a wrap round type carton in which three flaps are overlapped to prevent a gap and a hot melt adhesion state diagram thereof.

FIG. 8 is a perspective view showing a carton in which the top surface is completely opened and then disassembled into original sheets.

FIG. 9 is a perspective view of a carton that has been window punched and has three flaps integrated by hot melt.

FIG. 10 is a perspective view of a carton with integrated flaps.

FIG. 11: The shape of the box is maintained even if the top surface is opened 3
FIG. 3 is a perspective view of a carton in which a single flap is integrated.

FIG. 12 is a view showing a break in which a zipper and perforations are combined at a constant pitch.

FIG. 13 is a view showing a shape after the above cutting.

FIG. 14 is a perspective view showing a state of a V-shaped cut mark left on a ridge line.

[Explanation of symbols]

 1 Top plate 2 Cut 3 Initial opening 4 Inner flap 4'Inner flap 5 Intermediate flap 5'Intermediate flap 6 Outer flap 6'Outer flap 7 Initial opening break 8 Window opening 9 Bottom plate 10 Ruled line 10 'Perforations

Claims (1)

[Scope of utility model registration request] 1. A wrap round type carton that is formed into a box shape by bonding, inserting or fitting, and extends over the entire ridge line portion of the surface constituting the top surface of the carton or over most ridge lines. The ridgeline of the top surface is provided with cuts such as zippers and perforations so that it can be opened. A carton in which the three flaps are attached together by applying an adhesive to the one and does not decompose into a single sheet even after the top surface is opened.