JP7409665B2 - Packaging box with ice pack storage area - Google Patents

Description

The present invention mainly relates to a packaging box with an ice pack accommodating section for accommodating cakes and the like.

Conventionally, as shown in Patent Documents 1 and 2, a portable packaging box with an ice pack accommodating part is known, in which an ice pack accommodating part is formed inside a front wall that can be folded and opened. In the first example, flaps (connecting pieces 9) that can be connected to the left and right sides in an upright position are provided at the front ends of the left and right walls, and a cold pack is accommodated between the connecting pieces 9 and the inner surface of the front wall.

Further, in Patent Document 2, an inner front wall 29 is provided at the upper end of the front wall, which is bent inward and whose tip is adhesively fixed to the bottom plate surface to form an ice pack storage section between it and the front wall. be.

Utility model registration No. 3078616 Utility model registration No. 3114384

In the packaging box of Patent Document 1, the front ends of both left and right walls should come into contact with the inner surface of the upright front wall to ensure sealing between the inside and the outside of the box when assembling the box. Since the pieces 11 are connected, when the box is assembled with the ice pack D stored in it, the front wall contacts the ice pack and curves in side view, creating a gap between the front end of the side wall and the inner surface on both sides of the front wall. This has the disadvantage that the cold insulation effect is impaired due to the gaps between the two, and it is also undesirable to have gaps that communicate with the outside air when carrying the bag, as this can cause dust, germs, etc. to enter.

Further, the packaging box of Patent Document 2 has a flap-shaped inner front wall 29 connected to the upper end of the front wall 3a, and the bent end toward the inside of the box is adhesively fixed to the bottom plate. Although no gap is created due to the curvature of the paper, in addition to the need for adhesive fixation, the paper material becomes longer in the front-back direction by the vertical width of the inner front wall 29, which increases the amount of paper material when cutting the material (high cost). There is. Furthermore, this form has a problem in that it cannot be applied to, for example, a packaging box with a handle as shown in FIGS. 1 to 4 attached to the present application.

In order to solve the above problems, the packaging box of the present invention has firstly bendable peripheral walls connected to the front, rear, left and right outer peripheries of a square bottom plate 2, and a lid 8 that closes the upper opening on either of the peripheral walls. It is a packaging box in which storage flaps 19 are connected to each other so that they can be bent and opened and closed, and storage flaps 19 are installed on both left and right ends of the front wall 3, and the storage flaps 19 are bent inward to connect or join the bent ends internally. An accommodating section 22 consisting of a trapezoidal space in plan view is formed between the inner surface of the front wall 3 and the ice pack 21 , and each accommodating flap 19 is bent inward and connected or joined to form the accommodating section 22. In order to secure the front-to-back width inside the housing part 22 between the front wall 3 and the inner surface of the front wall 3 when the flaps are formed, a space side wall 19a having a predetermined width is vertically formed on the outer end side of each housing flap 19, and the left and right walls are 6 and 7 are elastically abutted along the outwardly inclined surfaces of the left and right space side walls 19a of the trapezoidal storage portion 22 from the inner surface of the box when the box is assembled with the peripheral wall upright. It is characterized in that the support flaps 18 are arranged in a bendable manner .

Second , a space flap 24 in the left and right direction is connected to at least one of the upper and lower ends of the accommodation flap 19 by bending it inward to the accommodation part 22 and maintaining the longitudinal width of the accommodation part 22 between the accommodation flap 19 and the inner surface of the front wall 3. It is characterized by the fact that it was established.

Thirdly , a front lid 8a and a rear lid 8b are provided in series on the upper ends of the front and rear walls 3 and 4, respectively, to respectively cover the front and rear parts of the opening of the box 1 in the box assembled state. In the case where a handle 9 is provided that is fixed by standing up at the bent end and stacked on top of each other, openings are provided at both left and right ends of the front lid 8a and the rear lid 8b, covering the upper ends of the left and right walls 6, 7 when the lid is closed. It is characterized by a cover flap 27 that closes the gap between the left and right upper ends of the section and is arranged in a row so that it can be bent downward.

According to the packaging box of the present invention configured as described above, the following effects are achieved.
(1) The accommodation flaps that form the accommodation section are bendably formed at the front ends of the left and right side walls, and the ice pack accommodation section is formed between the front end of the side wall and both ends of the front wall. Another advantage is that there is no gap between the cold pack container and the outside, which prevents the loss of cold air and the intrusion of dust and germs, and can also be applied to boxes with lids and handles on the upper ends of the front and rear walls. There is. Moreover, it is easy to take in and take out stored items such as cakes with the lid open.

(2) By keeping the left and right space side walls within the height of the left and right side walls, or by reducing the amount of protrusion from that height, it is possible to suppress the loss of material when removing paper material, and also to The front and rear width (thickness) of the ice pack accommodating part is reliably secured by the space side walls and the space flaps connected to the upper and lower ends of the space, and it is also possible to prevent the front wall from curving due to the ice pack.

(3) When assembling the box, the support flaps connected to the front ends of the left and right side walls elastically abut the inner surface of the proximal end of the storage flap that constitutes the storage section, so the shape of the storage section can be held more stably, and the handle In the case of a lid with a lid, there is an advantage that the upper ends of the left and right side walls can be reliably closed without creating a gap.

FIG. 2 is a perspective view of the packaging box according to the first embodiment of the present invention with the front wall and front lid open. It is a perspective view showing the assembled state of the packaging box. FIG. 3 is a plan cross-sectional view of the ice pack storage section at the front end of the packaging box. It is a development view of the entire packaging box. FIG. 3 is a plan cross-sectional view showing the packaging box in a folded state before use. It is a perspective view of the packaging box of the second embodiment of the present invention with the front wall and lid open. It is a perspective view showing the assembled state of the same packaging box. It is an overall development view of the same packaging box. It is a top view which shows the folded state of the same packaging box.

1 to 5 show a first embodiment of a packaging box with a handle, and FIGS. 6 to 9 show a second embodiment of a rectangular parallelepiped packaging box without a handle. First, the first embodiment will be explained. do. The rectangular parallelepiped box 1 of the box for packaging cakes according to the first embodiment has front and rear peripheral walls (front wall 3, rear wall 4) that can be bent and stood up on the four sides of a square bottom plate 2, and left and right peripheral walls (left wall 6, right wall 7) are arranged in a row, and lids 8 (front lid 8a, rear lid 8b) which are divided into front and rear parts at the upper ends of the front and rear peripheral walls 3 and 4 and which close the opening at the top of the box 1 are folded. They are connected so that they can be bent.

At the opening/closing ends of the front lid 8a and the rear lid 8b, handles 9, each shaped like a gate when viewed from the front, stand upright in the assembled state and overlap each other front and back, and are connected in a bendable manner. Tongue portions 11, which are sometimes inserted into the gates of the other handle 9 and overlap one another vertically, are provided at the tips of the front and rear lids 8a, 8b so as to protrude to an intermediate position between the left and right sides.

Rectangular auxiliary flaps 12 are bendably connected to both left and right ends of the rear wall 4, and the left and right ends of the front and rear handles 9 are engaged with the upper ends of each auxiliary flap 12 (in the box assembled state). Chevron-shaped locking flaps 13 that are removably inserted and locked are provided so as to project upwardly and inwardly so as to be bendable. The locking of the front and rear handles 9 in the upright state by the locking flaps 13 is performed by removably inserting the hook portions 9a at both left and right ends of the handles 9 into locking holes 15 cut into the locking flaps 13 side. By an ancient and well-known mechanism.

When the box is assembled, the auxiliary flap 12 stands forward along the inner surfaces of the left and right walls 6 and 7 at its left and right ends along with the rear wall 8b that stands up. On the other hand, a triangular gluing margin (gluing portion) 14 is formed at the upper corner of the rear end side of the left and right walls 6, 7, and is integrally bonded to the overlapping surface of the inner surface of the auxiliary flap 12, so that the left and right walls 6, 7 Fixed support for standing posture.

Further, the auxiliary flap 12 simultaneously bends the left and right walls 6, 7 and the rear wall 4 inward through diagonal folds 16 made on the left and right walls 6, 7 along the oblique sides of the triangles of the respective gluing allowances 14. It plays the role of guiding the folding/opening/closing (as if stacked on the bottom plate 2). At the corresponding positions of the lower end of the auxiliary flap 12 and the lower ends of the left and right walls 6, 7 during assembly, claws are inserted into holes (notches) that are inserted into and removed from each other so as to maintain the upright state of the left and right walls 6, 7. Engagement/disengagement portions 17a, 17b consisting of holes) are formed. At the front ends of the left and right walls 6 and 7, vertical flaps (support flaps to be described later) 18 that come into contact with the inner surfaces of the left and right ends of the front wall 3 during box assembly are bendably connected.

The basic structure of the box 1 as described above is a well-known structure that has been generally adopted in the past, but in the packaging box of the present invention, a storage structure that can be folded inward is provided at both left and right ends of the front wall 3. Flaps 19 are provided in series. The storage flap 19 is composed of a trapezoidal space side wall 19a at its connected base end, and a rectangular inner wall 19b which is connected to the short side of the trapezoid so that it can be folded via a fold 20, A tongue-shaped insertion piece 19c is formed at the tip (inner end) of one inner wall 19b, and an insertion hole 19d into which the insertion piece 19c is inserted is formed in the other inner wall 19b.

The accommodation flaps 19 are bent inwardly, their tips are overlapped, and the insertion piece 19c is inserted into the other insertion hole 19d, so that the left and right accommodation flaps 19 are connected to each other and attached to the front wall 3. An accommodating portion 22 having a trapezoidal space in plan view is formed between the inner surface of the housing and the cold insulating material 21 (see FIG. 3) is inserted and accommodated into this accommodating portion 22 from above. Reference numeral 23 indicates a cold air circulation hole formed in the inner wall 19b.

As shown in FIGS. 1 and 3, the space side wall 19a plays the role of forming the front-to-back width (thickness) of the accommodating part 22, and the upper end of the inner wall 19b serves to form a front-to-back width (thickness) of the accommodating part 22 formed as described above. A space flap 24 of a corresponding width is arranged in a row so as to be able to be bent inward, and in the assembled state, this space flap 24 is also located between the inner surface of the front wall 3 of the accommodation part 22 and the accommodation flap 19 at the upper end of the accommodation part 22. It functions to maintain the front-to-back width of the upper part of the accommodating part 22.

The lower end of the accommodating part 22 is opened and communicated with the inside of the box 1 to form a cold air flow passage, and a fold 20 between the space side wall 19a and the inner wall 19b is provided with a folded part to facilitate the folding of both. An arc-shaped cut hole 26 is cut in the vertical direction so that the inside of the box and the housing part 22 communicate with each other (cool air circulates).

In the accommodation section 22 assembled as described above, when the front wall 3 is erected, the space side wall 19a of the accommodation flap 19 elastically comes into contact with the flap (support flap) 18 continuous to the front ends of the left and right walls 6, 7. The housing flaps 19 are in contact with each other, and the housing flaps 19 stably maintain an upright position, and the left and right sides of the housing portions 22 are also closed, so that no cold air leaks. In addition, as shown in FIG. 4, a gluing allowance (gluing portion) 25 is formed on the overlapping surfaces of the left and right accommodation flaps 19b on the distal end side, so that when the left and right accommodation flaps 19b are overlapped as shown in FIG. They can also be fixedly connected by gluing them together.

In addition, band-shaped cover flaps 27 in the front and rear direction are connected to the left and right ends of the front and rear lids 8a and 8b so that they can be bent inward (downward). The box 1 has a structure that covers the upper ends of the side walls 6 and 7 of the box 1 and closes both left and right ends of the box 1, as shown in FIGS.

Further, vertical zippers 28 are formed at both ends of the rear wall 4, and when taking out an object such as a cake stored inside in an assembled state, the handle 9 removed from the locking flap 13 is attached to the rear cover. By pulling the zipper along with the zipper 8b rearward and diagonally upward, the majority of the rear wall 8b is torn off at both ends at the zipper 28 position, opening the rear part and allowing the stored items to be taken out from the opening.

FIG. 5 shows the box 1 with a handle folded into a plate shape. Before assembling the box, the auxiliary flap 12, left and right side walls 6, 7, and accommodation flap 19 are all folded inward (at this time, the The flap 12 and the left and right side walls 6, 7 are both bonded together), and the front and rear walls 8a, 8b can be folded while being alternately stacked on the bottom plate 2. The box 1 is stored and distributed in this state before use, and when used, it is sequentially assembled into the states shown in FIGS. 1 and 2.

6 to 9 show an embodiment (second embodiment) in which the structure of the accommodating portion 22 of the present invention is applied to a box without the handle 9, and by not providing the handle 9, the lid 8 is Since the lid 8 can be configured as a single lid, the handle 9 itself and the locking flap 13 supporting the handle 9 are not required, and since the lid 8 is configured as a single unit, the lid 8 can be easily engaged in the closed state. All structures are the same as those shown in FIGS. 1 to 5 above, except for the need for destructuring. Parts common to the above embodiments are indicated by common reference numerals, and a description of the common parts will be omitted.

The features of the second embodiment will be explained below. The lid 8 has a rectangular shape that is substantially the same as the bottom plate 2, and its rear end is bendably connected to the upper end of the rear wall 8b. Lid peripheral walls 8c (front wall), 8d, and 8d (side walls) forming the peripheral wall of the lid 8 are arranged in a row so as to be bendable.

Connecting flaps 29 are bendably connected to both left and right ends of the front wall 8c of the lid peripheral wall, and are bent inward to form a triangular outer peripheral surface on the rear inner surface of the left and right side walls 8d. By superimposing and gluing on the glue margin 31, the lid 8 is assembled into a box shape with the peripheral walls 8c and 8d standing up. The box-shaped lid can be folded inward by overlapping the peripheral walls 8c, 8d with the inner surface of the lid 8 by the fold line 32 formed along the oblique side of the gluing allowance 31.

In addition, the upper end of the front wall 3 and the upper ends of the left and right walls 6, 7 are bent inward when the box is assembled, and a frame-shaped inner edge is formed at the upper opening end of the front wall 3 and the left and right walls 6, 7 of the box 1. Receiving flaps 33a, 33b, and 33b are arranged in series and have a structure that receives the inner surface (lower surface) of the lid 8 when the lid is closed.

Furthermore, both ends of the front side receiving flap 33a and the front ends of the left and right receiving flaps 33b are removably engaged with each other in the assembled state, so that the front and left and right receiving flaps 33a, 33b, 33b are shaped like a frame. Hook parts 34 and 36 for holding are formed.

At the upper center of the front wall 3 of the box 1, an upwardly facing T-shaped locking pawl 37 is formed so that it can be raised and lowered, and at a corresponding position on the front circumferential wall 8c of the lid 8 when the lid is closed, the above-mentioned locking pawl 37 is formed. A locking hole 38 is cut into which the left and right ends of the T-shaped locking pawl 37 are removably inserted and locked to maintain the closed state.

FIG. 9 shows that from the state shown in FIG. 8, the gluing margins 14 and 31 are adhered to the auxiliary flap 12 and the connecting flap 29, respectively, and the flaps on both sides and the lid peripheral walls 8c and 8d are folded inward using the folds 16 and 32. After that, the bottom plate 2 and the front wall 3 are superimposed on the rear wall 4 and the inner surface of the lid 8 and folded into a single plate, and the product is stored and distributed in this plate-like folded state.

1 Box 2 Bottom plate 3 Front wall ( peripheral wall)
4 Rear wall (peripheral wall)
6 Left wall (peripheral wall)
7 Right wall (peripheral wall)
8 Lid 8a Front lid 8b Rear lid 9 Handle 18 Support flap 19 Accommodation flap 19a Space side wall 21 Ice pack 22 Accommodation part 24 Space flap 27 Cover flap

Claims (3)

It is a packaging box in which bendable peripheral walls are connected to the outer periphery of the front, rear, left, and right sides of a rectangular bottom plate (2), and a lid (8) that closes the upper opening is connected to one of the peripheral walls so that it can be opened and closed. Accommodation flaps (19) are provided on both left and right ends of the front wall (3) and are bent inward to connect or join the bent ends internally, and the accommodation flaps (19) and the inner surface of the front wall (3) are connected to each other. An accommodating part (22) consisting of a trapezoidal space in plan view for accommodating the ice pack (21 ) is formed between the accommodating part (22) by bending each accommodating flap (19) inward and connecting or joining them. 22), a predetermined width space side wall (19a ) are formed in the vertical direction, and the left and right spaces of the trapezoidal accommodating portion (22) are formed from the inner surface of the box when the box is assembled with the surrounding walls standing up on the front end sides of the left and right walls (6) and (7). A packaging box with an ice pack accommodating portion , in which a support flap (18) that elastically abuts along the outwardly inclined surface of a side wall (19a) is arranged in a bendable manner . At least one of the upper and lower ends of the accommodation flap (19) is bent inward of the accommodation part (22) in the left-right direction to maintain the front-to-back width within the accommodation part (22) between the accommodation flap (19) and the inner surface of the front wall (3). 2. A packaging box with an ice pack storage section according to claim 1 , further comprising space flaps (24). At the upper ends of the front and rear walls (3) and (4), a front cover (8a) and a rear cover (8b) are respectively installed in series to separately cover the front and rear parts of the opening of the box (1) in the box assembled state. In the case where the front and rear lids (8a) and (8b) are provided with handles (9) that are raised up at the bent ends of the lids (8a) and (8b) and fixed by overlapping them, the handles (9) are provided at the left and right ends of the front lid (8a) and the rear lid (8b). Claim 1 or 2 , wherein cover flaps (27) are arranged in a row so as to be bendable downward, covering the upper ends of the left and right walls (6), (7) and closing the gap between the left and right upper ends of the opening when the lid is closed. A packaging box with an ice pack storage section as described in .

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