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JP-7855299-B2 - packaging box

JP7855299B2JP 7855299 B2JP7855299 B2JP 7855299B2JP-7855299-B2

Inventors

  • 五十嵐 貴史

Assignees

  • 株式会社トーモク

Dates

Publication Date
20260508
Application Date
20220221

Claims (3)

  1. A packaging box having a rectangular tubular body and a closing part that closes the open end of the body, The body is constructed such that a top plate, a bottom plate facing the top plate, and side plates connecting the top plate and the bottom plate are connected via fold lines in the body. The top plate and the bottom plate are connected to the outer flap at both ends of the open end of the body via an outer flap fold line. The side plate has inner flaps connected to both ends of the open end of the body via inner flap fold lines. The closing portion is closed by the inner flap which is folded inward along the inner flap fold line, one outer flap connected to the top plate and the bottom plate which is folded inward along the outer flap fold line and is not fixed to the inner flap in a state where it is in contact with the inner flap from the outside, and an outer flap connected to the other of the top plate and the bottom plate which is folded inward along the outer flap fold line and is fixed to the non-fixed outer flap in a state where it is in contact with the non-fixed outer flap from the outside, The top panel is provided with a door fold line extending along the outer flap fold line, a door breakable line connecting both ends of the door fold line and extending convexly away from the outer flap fold line, and an open breakable line extending from the end of the door breakable line to the corner of the top panel adjacent to the end of the door breakable line or to the edge of the outer flap adjacent to the end of the door breakable line . The packaging box is characterized in that the top panel has a door fold line, a door breakable line, and an open breakable line at each of the two ends on the open end side of the body, and the two door breakable lines are in contact at least in part .
  2. In the packaging box according to claim 1, The packaging box is characterized in that the door breakable line comprises a first door breakable line connecting the side edges of the top plate, and a pair of second door breakable lines extending from both ends of the first door breakable line along the side edges of the top plate.
  3. In the packaging box according to claim 1 or 2, A packaging box characterized in that the door fold line extends along the outer flap fold line while maintaining a predetermined distance from the outer flap fold line.

Description

This invention relates to a packaging box in which a portion of the box is torn off upon opening. Conventionally, a rectangular, wrap-around type packaging box capable of containing multiple products is known (see Patent Document 1). This packaging box has a front panel, rear panel, top panel, and bottom panel that are integrally formed. Furthermore, this packaging box includes a pair of first inner flaps that are connected to the left and right ends of the front panel, folding inward, and a pair of second inner flaps that are connected to the left and right ends of the rear panel, folding inward. Furthermore, this packaging box comprises a pair of first inner flaps and a pair of second inner flaps, which are connected to the left and right ends of the bottom plate so as to fold inward, and are positioned outside the pair of first inner flaps, and a pair of first outer flaps that are not fixed to the pair of first inner flaps, and a pair of second outer flaps that are connected to the left and right ends of the top plate so as to fold inward, and are fixed to the pair of first outer flaps in contact with them from the outside. Furthermore, the first inner flap has a shape in which the front corner is cut out in an arc shape, and the top panel has a breakable line formed therein for tearing the top panel when opening the packaging box. This breakable line connects both corners on the front side of the top panel and extends convexly toward the rear side. This design allows the operator to open the packaging box by tearing a portion of the top panel along the breakable line and pulling it towards them. This causes the top panel, front panel, and a pair of first inner flaps to rotate together, allowing both the top and front panels of the packaging box to be opened simultaneously. Therefore, for example, by tilting the front of the opened packaging box downwards, the contents can be easily transferred to shelves or freezers. Utility Model Registration No. 3235742 (Publication) This is a perspective view showing the appearance of a packaging box according to the first embodiment of the present invention.This is a plan view showing the configuration of the packaging box before assembly according to the first embodiment.This is a perspective view showing the packaging box according to the first embodiment when the top panel has been opened.This is a perspective view showing the packaging box according to the first embodiment when the sealed portion is opened.This is a plan view showing the packaging box according to the first embodiment after unfolding.This is a perspective view showing the appearance of a packaging box according to a second embodiment of the present invention.This is a plan view showing the configuration of the packaging box before assembly according to the second embodiment.This is a perspective view showing the packaging box according to the second embodiment when the top panel has been opened.This is a perspective view showing the packaging box according to the second embodiment when the closure is opened.This is a plan view showing the packaging box according to the second embodiment after unfolding.This is a plan view showing the configuration of the packaging box before assembly according to the third and fourth embodiments of the present invention. [First Embodiment] The packaging box 1 according to the first embodiment of the present invention will be described below with reference to Figures 1 to 5. As shown in Figure 1, the packaging box 1 of the first embodiment is a wrap-around case type with an external appearance formed in the shape of a rectangular parallelepiped. The packaging box 1 is used to store products that are easily damaged when stacked, such as ice cream bars, and a part of the box is broken when opened. The packaging box 1 has a rectangular cylindrical body 2 and a closing part 3 that closes the open end of the body 2. The body 2 includes a top plate 4, a bottom plate 5, and side plates 6, 6. The top plate 4, bottom plate 5, and side plates 6, 6 are all formed in a roughly rectangular shape. The top panel 4 has a pair of door sections 7 that rotate toward the closing section 3 when opened. Each door section 7 has a break-start section 8 formed at its tip for inserting fingers when opening. The packaging box 1 is formed by punching out a roughly rectangular corrugated cardboard sheet 1x, as shown in Figure 2, from a base sheet, and then folding and assembling it. The structure of the corrugated cardboard sheet 1x will be described below with reference to Figure 2. As shown in Figure 2, the corrugated cardboard sheet 1x is connected from right to left in the following order: side panel 6, bottom panel 5, side panel 6, top panel 4, and adhesive piece 9, each connected via the fold line a on the body. The top panel 4 has upper outer flaps 31 connected to its upper and lower ends via upper outer flap fold lines b1. Each upper outer flap 31 is formed in a roughly rectangular s