WO2015068498A1

WO2015068498A1 - Two-piece packaging box

Info

Publication number: WO2015068498A1
Application number: PCT/JP2014/076006
Authority: WO
Inventors: 雅之半田; 永長　朗
Original assignee: レンゴー株式会社
Priority date: 2013-11-06
Filing date: 2014-09-30
Publication date: 2015-05-14
Also published as: JP5719094B1; JPWO2015068498A1

Abstract

This two-piece packaging box has a construction, wherein protrusions (13) protruding to the outside are formed on corner sections formed by sidewalls (11) and end walls (12) of a tray (1), cutout window sections (26) are disposed on corner sections formed by sidewalls (21) and end walls (22) of a cover (2), and cut lines (25) are formed on each sidewall (21) member, said member connecting to the top wall (20) of the cover (2), so as to extend from a bottom intermediate part of the member to both corner parts on the top wall (20) side. The tray (1) and the cover (2) are fixed together by the protrusions (13) engaging with the cutout window sections (26) when the cover (2) is placed over the tray (1), and the tray (1) and the cover (2) are separated from each other as the cover (2) is disjoined when the cut lines (25) are broken, thereby enabling the cover (2) to be removed from the tray (1).

Description

2-piece packaging box

This invention relates to a two-piece packaging box comprising a tray and a cover and provided with fixing and separating means.

Conventionally, as shown in FIG. 14, the following Patent Document 1 includes a tray 51 that houses a bottom portion and a cover 52 that covers the tray 51 as a packaging box made of cardboard that can be used for both transportation and display of goods. And the cover 52 are fixed at the time of packing operation and are provided with means for separating at the time of unpacking.

In this packaging box, the tray 51 is provided with a side wall 62 and an end wall 63 adjacent to each other around the bottom wall 61, and the lower side of the side wall 62 and the end wall 63 has a lateral direction of the boundary with the bottom wall 61. A slit 64 is provided along the ridge.

The cover 52 is provided with adjacent side walls 71, end walls 72, and a top wall 73. A handle hole 74 is formed in the middle portion of the side walls 71 and the end walls 72 by a U-shaped cut. In the lower end portions of the side wall 71 and the end wall 72, an insertion piece 75 comprising a portion between two cuts and an extension portion thereof is provided. The insertion piece 75 is provided with a crease line 75a in the horizontal direction, and a knob portion 75b formed by an arc-shaped cut is provided at an intermediate portion thereof.

And when packing an article for transport using this packaging box, the article is supported by a cushioning material 65 made of foamed polystyrene installed inside the tray 51, and the lower part of the cover 52 is fitted on the outer periphery of the tray 51. While the insertion piece 75 is bent along the crease line 75a, the portion on the tip side of the crease line 75a of the insertion piece 75 is inserted into the slit 64, and the tray 51 and the cover 52 are fixed.

On the other hand, at the time of display of goods at the store, the tray 51 and the cover 52 are separated by picking the knob portion 75 b protruding at the time of packing and pulling out the insertion piece 75 from the slit 64. Remove and expose the article from tray 51.

Japanese Utility Model Publication No. 55-139019

However, in the two-piece packaging box as described above, when the article reaches the vicinity of the slit 64 inside the tray 51 during the packing operation, there is a problem that it becomes difficult to insert the insertion piece 75 into the slit 64. At the time of transportation, the insertion piece 75 may unexpectedly come out of the slit 64 and the tray 51 and the cover 52 may be separated.

In addition, for example, a two-piece packaging in which the tray and the cover are attached with an adhesive, and when unpacking, the cut line put in the tray is cut, the adhesive portion is cut off, and the tray and the cover can be separated. Although a box is also known, such a packaging box has a problem that a relatively large force is required for the cutting operation of the bonded portion at the time of unpacking.

Therefore, an object of the present invention is to make it possible to easily and reliably fix the tray and the cover of the two-piece packaging box and to easily separate them.

In order to solve the above-mentioned problems, the present invention comprises a tray for storing contents and a cover for covering the contents. The tray includes a pair of side walls and end walls around the bottom wall, and the cover has a top wall. A two-piece packaging box provided with means for separating each pair of side walls and end walls around each other, fixing the tray and the cover so that the side walls and end walls correspond to each other during packing operation, and separating them during unpacking A protrusion projecting outward as an extension of the side wall is formed on the ridge formed by the side wall and the end wall of the tray, and the opening extending over the end wall is formed at the ridge formed by the side wall and the end wall of the cover. When a window is provided and a score line is made in the member connected to the top wall of the pair of side walls from the lower end middle part to both corners on the top wall side, and the cover is put on the tray, the protrusion engages with the window part. The tray and cover are fixed, and cut the cut line on the side wall of the cover. Then, if the pair of end walls are swung so that the distance between the lower portions is widened with the boundary with the ceiling wall as an axis, the cover is disassembled, and the protrusion is pulled out from the extraction window so that the tray and the cover are separated. Based on this basic configuration, a specific form corresponding to the form of the box was proposed.

In the two-piece packaging box according to the present invention, the projection of the tray engages with the extraction window portion of the cover in the step of covering the tray with the packaging operation, so that the tray and the cover can be easily fixed. .

The tray and cover are securely fixed by the engagement between the projection and the extraction window, so that the cover is not removed from the tray during handling in the distribution process, and the packed contents are protected. Is done.

In addition, since the tray and the cover are fixed without being bonded, it is not necessary to peel off or cut off the adhesive portion at the time of unpacking, and can be easily unpacked.

Furthermore, when the cut line on the side wall of the cover is cut and unpacked, the tray and the cover are separated, and at the same time, the cover is dismantled, so that the cover is not bulky and discarded without peeling off the cover. Can do.

The figure which shows the blank of the 2 piece packaging box which concerns on 1st Embodiment of this invention The perspective view which shows the packing process which covers a tray on a tray same as the above The perspective view which shows a packing state same as the above A perspective view showing the unpacking process The perspective view which shows the display state of a tray same as the above Side view of packaging boxes packed in the same packaging as above The figure which shows the blank of the 2 piece packaging box which concerns on 2nd Embodiment of this invention The perspective view which shows the packing process which covers a tray on a tray same as the above Side view showing the process of engaging the same projection with the extraction window The perspective view which shows a packing state same as the above A perspective view showing the unpacking process A perspective view showing the unpacking process The perspective view which shows the display state of a tray same as the above The perspective view which shows the packing process which covers a tray on the tray of the conventional 2 piece packaging box

First, a first embodiment of the present invention will be described with reference to FIGS.

The two-piece packaging box according to this embodiment is assembled by a packaging machine, and includes a tray 1 and a cover 2 blank shown in FIG. The tray 1 and the cover 2 are made of corrugated cardboard having a thickness of about 2 mm.

In the blank of the tray 1, a side wall 11 is connected to one opposite end of the bottom wall 10, and an end wall 12 is connected to the other opposite end of the bottom wall 10.

The side wall 11 is formed with trapezoidal protrusions 13 whose front ends are slightly narrowed at both side edges forming ridges with the front and rear end walls 12. The front end side and rear end side protrusions 13 of the side wall 11 are integrated. In order to avoid interference in the state, the position in the height direction is shifted by more than the vertical dimension.

Side flaps 12a serving as passages are connected to both ends of the end wall 12, and a zipper-type cut is formed at the boundary between the end wall 12 and the side flap 12a for cutting at the time of dismantling. A cut line 12b is formed.

In addition, an end piece 11a having a wavy tip edge is provided at the end portion which becomes the upper end of the side wall 11, and a cut line having a connecting portion is put in the end wall 12 which is the front side. An announcement board 12c is formed to increase appeal power.

On the other hand, in the blank of the cover 2, a side plate 24 that is a component of the side wall 21 is provided on one opposite end of the top wall 20, and an end wall 22 is provided on the other opposite end. Side flaps 23 that are constituent elements of the side wall 21 are connected to both ends.

The side plate 24 is provided with a zipper-type cut line 25 in which ridge-shaped cuts are intermittently formed so as to form a V shape from the middle part of the tip edge which is the lower end in the packed state to both corners on the top wall 20 side. The cut start portion 25 a is provided at the front end side central portion of the side plate 24.

At the ridge portion of the end wall 22 and the side flap 23, a window portion 26 is provided. The portion located on the end wall 22 of the glazing portion 26 is cut slightly uniformly from the position of the ridgeline with the side flap 23 to be slightly larger than the thickness of one cardboard, and is located on the side flap 23 of the glazing portion 26 Is cut into a V shape to guide the insertion of the protrusion 13.

It should be noted that the front window portion 26 and the rear window portion 26 in the packaged state have different height positions corresponding to the protrusions 13 of the tray 1.

When assembling the blank as described above and packing the product, as shown in FIG. 2, first, the pair of side walls 11 and end walls 12 are raised from the bottom wall 10 of the tray 1, and the side flaps 12 a are placed inside. The product G is arranged and stored inside the tray 1 with the projection 13 protruding outward from the front and rear end walls 12.

Next, with the top wall 20 of the cover 2 positioned above the product G and the end wall 12 of the tray 1 and the end wall 22 of the cover 2 being aligned, the end wall 22 is moved downward from the top wall 20. Bending is performed in a direction in which the side flaps 23 are brought into contact with each other from the pair of end walls 22 so that the leading edges of the side flaps 23 are brought into contact with each other as shown in FIG.

As described above, when the cover 2 is placed on the tray 1 from the outer peripheral direction, the protrusion 13 engages with the extraction window portion 26 and the cover 2 cannot be pulled out from the tray 1.

Then, the pair of side plates 24 are bent downward from the top wall 20, and the side plates 24 are bonded to the surface of the side flaps 23 on the outside of the cut line 25 with hot melt adhesive or the like to form the side walls 21. The tray 1 and the cover 2 are completely fixed with the 21 and the

end walls

12 and 22 corresponding to each other, and the assembly of the packaging box is completed.

On the other hand, when unpacking the packaging box, as shown in FIG. 4, when the cut line 25 is cut by picking and pulling up the cut start portion 25 a of the side plate 24, the opposing side flaps 23 are fixed. When released, the pair of end walls 22 can be swung outward with a boundary with the top wall 20 as an axis so that a lower space is opened. The tray 1 and the cover 2 are separated by being pulled out.

Then, when the cover 2 is removed from the tray 1, the product G can be exposed from the tray 1 and displayed as shown in FIG. At this time, the appealing power can be increased by causing the notification plate 12c, which is provided in a continuous manner to the front end wall 12 and folded in half, to be pushed forward.

Further, if the fall-off piece 11a is bent inward, even if the product G is taken out from the front, the wave-shaped portion at the tip thereof prevents the product G remaining on the tray 1 from falling forward.

In addition, as shown in FIG. 6, this packaging box has protrusions 13 projecting forward and backward at different heights when transported in the packing state and arranged in the front and back, so that one of the adjacent packagings By causing the projection 13 of the box to be along the outer surface of the other packaging box, interference between the projections 13 can be avoided, and the packaging box can be integrated without a gap.

In the first embodiment, when the side wall 21 is formed, the side flap 23 and the side plate 24 are bonded and fixed together with an adhesive. However, for example, an insertion provided continuously on both side ends of the side plate 24. You may make it hold | maintain a side surface in a closed state by bending a piece and inserting in the insertion hole provided along the boundary with the end wall 22 of the side flap 23. FIG.

Next, a second embodiment of the present invention will be described with reference to FIGS.

The 2-piece packaging box according to this embodiment is assembled by hand, and is composed of a blank of the tray 1 and the cover 2 shown in FIG. The tray 1 and the cover 2 are made of corrugated cardboard having a thickness of about 2 mm.

In the blank of the tray 1, each pair of side walls 11 and end walls 12 are alternately arranged, and the front end wall 12 sandwiched between the side walls 11 ensures a large exposed area of the face surface of the product at the time of display. For this reason, the height is set low, and the passage piece 14 is continuously provided at the outer edge of the end wall 12 which is the rear.

Bottom plates

10a and 10b constituting the bottom wall 10 are connected to the lower ends of the side wall 11 and the end wall 12, respectively. Since the bottom plate 10b is folded and glued, an oblique crease line is formed on the side portion, and the bottom plate 10a has an oblique direction on the side portion to avoid interference with the adjacent end wall 12 during assembly. There is a crease line.

Protrusions 13 are formed on both side ends of the side wall 11 by cutting into the end wall 12 or the like, and the projections 13 on both sides of the side wall 11 avoid interference in an integrated state and make it easier to cover the cover 2. Therefore, the position in the height direction is shifted so that the front one becomes lower. An end piece that is a top edge of the side wall 11 is provided with an end piece 11 a having a wavy tip edge.

On the other hand, in the blank of the cover 2, each pair of side walls 21 and end walls 22 are alternately connected, and a passage piece 27 is connected to the outer edge of the one end wall 22.

Top plates

20a and 20b constituting the top wall 20 are connected to the upper ends of the side wall 21 and the end wall 22, respectively.

The front end wall 22 is set to be longer in the height direction so that the lower end reaches the lower part of the tray 1, and the rear end wall 22 has a lower end cut off than the front end wall 22. The dimension in the height direction is set short.

The side wall 21 has zippers in which hook-shaped cuts are intermittently formed so as to form a V-shape from finger insertion holes 28 drilled in the center in the height direction and the width direction to both corners on the top plate 20a side. A cut line 25 of the mold is inserted, and a cut start portion 25 a is provided facing the finger insertion hole 28. Further, a zipper-type score line 25 extending in the vertical direction is provided from the finger insertion hole 28 to the center of the lower end. The cut line 25 reaching the lower end may be formed as a tear band that is put in parallel and pulled between them, or may be placed at a position shifted from the center of the side wall 21 in the width direction.

A window portion 26 is provided at the ridge of the side wall 21 and the end wall 22 and the ridge of the side wall 21 and the passage piece 27, and the outer edge of the end wall 22 on the opposite side of the passage piece 27 is the passage piece. 27 are cut out corresponding to the extraction windows 26. The portion located on the end wall 22 and the portion located on the passage piece 27 of the extraction window portion 26 are cut into a portion slightly larger than the thickness of one cardboard from the position of the ridge line with the side wall 21, and the extraction window portion 26. The portion located on the side wall 21 is cut into a V shape in order to guide the insertion of the protrusion 13.

The blank of the tray 1 and the cover 2 as described above is bent along the ruled line at the boundary between the

side walls

11 and 21 and the

end walls

12 and 22 which are diagonal positions of the peripheral wall, and the

joint pieces

14 and 27 are arranged at the opposite ends. The

bottom plate

10a, 10b of the tray 1 is bent upward, the folded portion of the bottom plate 10b is bonded to the bottom plate 10a, and is supplied to the business operator who packages the product.

Then, when assembling the two-piece packaging box and packing the product, as shown in FIG. 8, the pair of side walls 11 and end walls 12 of the tray 1 are three-dimensionally formed into a rectangular tube shape, The product G is stored side by side in the tray 1 such that 13 protrudes outward from the front and rear end walls 12 and the bottom wall 10 including the

bottom plates

10a and 10b is flat.

Next, the pair of side walls 21 and end walls 22 of the cover 2 are three-dimensionally formed into a rectangular tube shape, and the trays are placed from above the product G in a state where the

side walls

11 and 21 and the

end walls

12 and 22 correspond. 1 cover 1.

At this time, as shown in FIG. 9, when the cover 2 is tilted rearward with respect to the tray 1 by utilizing the fact that the height dimension of the end wall 22 that is the rear of the cover 2 is shortened, 13 is not caught by the lower end of the cover 2.

In this way, when the tray 1 is covered with the cover 2, as shown in FIG. 10, the protrusion 13 engages with the extraction window portion 26, and the cover 2 cannot be pulled out from the tray 1, so that the tray 1 and the cover 1 are covered. 2 is fixed.

After that, the top plate 20b is bent from the end wall 22, the top plate 20a is bent from the side wall 21, and the

top plates

20a and 20b are overlapped, from the abutting portion between the top plates 20a to the upper portion of the end wall 22. Sealing is performed by applying the tape T.

On the other hand, when unpacking the packaging box, the fingers are inserted into the finger insertion holes 28, and as shown in FIG. The cut line 25 that is V-shaped is cut to the edge, and the side wall 21 is pulled forward, and the cut line 25 toward the lower end central portion of the side wall 21 is cut.

As a result, as shown in FIG. 12, the side wall 21 is divided into three parts that are connected to the top plate 20 a and parts that are connected to the pair of end walls 22, and the pair of end walls 22 is pivoted about the boundary with the top wall 20. As shown, the projection 13 is pulled out from the extraction window 26 and the tray 1 and the cover 2 are separated.

Then, when the cover 2 is removed from the tray 1, the product G can be exposed from the tray 1 and displayed as shown in FIG. At this time, if the retaining piece 11a is bent inward, the product G remaining on the tray 1 is prevented from being tilted forward by the wavy portion at the tip of the product G even when the product G is taken out from the front.

In the second embodiment, as shown in FIG. 10, the cover 2 is illustrated in which the top wall 20 is formed by overlapping each pair of

top plates

20a and 20b in a planar manner. The structure of the top 20 is not limited as long as the top 20 is connected to the upper ends of the pair of side walls 21. For example, the top ends of the pair of top 20 a are upward. It is good also as what is bent and joined and makes a handle part.

In addition, the tray 1 is illustrated in which each pair of side walls 11 and end walls 12 are continuous in the circumferential direction and the bottom wall 10 is a one-touch assembly type. However, the tray 1 is limited to such a form. For example, the tray 1 having the format shown in the first embodiment and the cover 2 may be combined.

In the two-piece packaging box according to the first and second embodiments configured as described above, in the packed state, the engagement between the protrusion 13 and the extraction window portion 26 is stably maintained, and the tray 1 and the cover 2 are Since it is securely fixed, the cover 2 is not unexpectedly removed from the tray 1 during handling in the physical distribution process.

In addition, since the gap of the extraction window portion 26 is hidden by the protrusion 13, the intrusion of dust into the box is prevented, and the packaged product G is protected.

Since the tray 1 and the cover 2 are fixed without being bonded by the engagement between the protrusion 13 and the extraction window portion 26, it is not necessary to peel off or cut off the bonding portion at the time of unpacking. The appearance of the tray 1 used for display can be kept beautiful.

When the cut line 25 of the side wall 21 of the cover 2 is cut and unpacked, the tray 1 and the cover 2 are separated, and the cover 2 is disassembled at the same time, so that the cover 2 can be removed without peeling off the adhesive portion. It can be discarded as a flat state that is not bulky. In the first embodiment, the tray 1 can be discarded as a flat state by cutting the cut line 12b to be in a flat state, and in the second embodiment, the tray 1 is returned to a folded state before assembly.

In the first and second embodiments, the tray 1 and the cover 2 are fixed by engaging the projection 13 with the extraction window 26 at all four vertical ridges of the packaging box. However, the fixing means by this engagement may be provided on at least one longitudinal ridge according to the shape of the tray 1 and the cover 2 and the fitting structure.

Moreover, although what used the corrugated cardboard was illustrated as a material of the tray 1 and the cover 2, various materials can be used for each material, such as using a coated cardboard as a material of the tray 1, for example. it can.

DESCRIPTION OF SYMBOLS 1 Tray 2 Cover 10

Bottom wall

10a, 10b Bottom plate 11 Side wall 11a Stopping piece 12 End wall

12a Side flap

12b Cut line

12c Notification board 13 Protrusion 14 Transition piece 20

Top wall

20a, 20b Top plate 21 Side wall 22 End wall 23 side Flap 24 Side plate 25 Cut line 25a Cut start portion 26 Extraction window portion 27 Passage piece 28 Finger insertion hole G Product T Tape

Claims

A tray (1) for storing contents and a cover (2) covering the tray (1), the tray (1) has a pair of side walls (11) and end walls (12) around the bottom wall (10). The cover (2) is provided with a pair of side walls (21) and end walls (22) around the top wall (20), and the tray (1) and the cover (2) In the two-piece packaging box provided with means for fixing the side walls (11, 21) and the end walls (12, 22) to correspond and separating them when unpacking,
On the ridge formed by the side wall (11) and the end wall (12) of the tray (1), a protrusion (13) protruding outward as an extension of the side wall (11) is formed, and the side wall of the cover (2) ( 21) and a ridge formed by the end wall (22) are provided with a window part (26) that opens to reach the end wall (22), and a member connected to the top wall (20) of the pair of side walls (21), Insert a score line (25) from the bottom middle part to both corners on the top wall (20) side,
When covering the tray (1) with the cover (2), the protrusion (13) engages with the extraction window (26), and the tray (1) and the cover (2) are fixed.
Cut the cut line (25) in the side wall (21) of the cover (2), and swing the pair of end walls (22) so that the space between the lower part is widened around the boundary with the top wall (20). And the cover (2) is disassembled, and the projection (13) is pulled out of the window (26) so that the tray (1) and the cover (2) are separated. box.
2. The two-piece packaging box according to claim 1, wherein the cover (2) is provided with side flaps (23) connected to the side ends of a pair of end walls (22) extending from the top wall (20). 23) is bent in the abutting direction, a side plate (24) extending from the top wall (20) is overlaid on the side flap (23), and the side flaps (23) are fixed together to form the side wall (21), and the end wall (22) and flank of side flap (23) are provided with a window part (26), and a cut line (25) is inserted in the side plate (24),
2. A two-piece packaging box, wherein the side flaps (23) are released from each other and the cover (2) is disassembled along with the cutting of the cut line (25) of the side plate (24).
2. The two-piece packaging box according to claim 1, wherein the cover (2) has a pair of side walls (21) and end walls (22) connected in the circumferential direction, and extends from the upper end of the side walls (21). A two-piece packaging box, wherein the top wall (20) is formed by joining (20a).
The two-piece packaging box according to claim 3, wherein one end wall (22) of the cover (2) is set to have a long dimension in the height direction, and the other end wall (22) is one end wall. (2) A two-piece packaging box characterized in that the height dimension is set short so that the lower end is cut off.
5. The two-piece packaging box according to claim 1, wherein the protrusions (13) protruding in the opposite direction from the opposing surface of the tray (1) are arranged at different heights in order to avoid interference during stacking. Correspondingly, the two-piece packaging box is characterized in that the window portions (26) located at the position facing the cover (2) are arranged at different heights.