JP2983507B2 - Packaging containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a packaging container,
The present invention relates to a container for packaging seafood, for example, live fish.

[0002]

2. Description of the Related Art In recent years, live fish have been packed and shipped to markets, or they have been shipped directly to ordinary households. In these cases, live fish are usually made of foamed styrene containers. Used. This container includes a container main body having an open upper surface for accommodating live fish, and a lid fitted to the container main body and closing the upper surface of the opening of the container main body. Then, a live fish is accommodated in the container body together with a predetermined amount of seawater, a lid is fitted to the container body, and the lid and the container body are packed and packed in a packing band such as a tape, and transported. To be transported.

[0003]

Since the cover is fitted to the container body containing the live fish together with the seawater, the live fish are greatly shaken with the seawater by the vibration during transportation.
The live fish loses their vitality and is easily weakened.The container for packing the live fish is made of foamed styrene, so the used container from which the live fish is taken out will generate harmful gases when incinerated. It cannot be incinerated as a material, but must be disposed of as a paid industrial waste, which tends to increase the cost as a whole.

The present invention has been made in view of the above points, and can prevent a live fish from being greatly shaken during transportation and losing its vitality. After the used fish are taken out and used, they are incinerated as general waste. It is an object of the present invention to provide a packaging container capable of reducing costs as a whole.

[0005]

According to a first aspect of the present invention, there is provided a packaging container comprising: a side plate erected on an opposite side edge of a rectangular bottom plate; and an opposite edge of the bottom plate. A paper container body standing upright and forming a waterproof live fish tank having an upper surface opened at the side plate portions and a series of end plate portions; an opening upper surface of the container body detachably fitted to the container body; A lid made of paper, a contacting protruding piece fitted into the container body so as to be movable up and down in accordance with a water level contained in the live fish tank, and coming into contact with a back surface of the lid, and the live fish. And a paper drop lid each having a number of ventilation holes for supplying oxygen to the tank.

A live fish is stored in the live fish tank of the container main body together with a predetermined amount of seawater, a dropping lid is fitted to the water level of the live fish tank, and a lid is fitted to the container main body to cover the lid. By closing the upper surface of the opening of the container main body with, the upper end portion of the contact protruding piece of the drop lid is brought into contact with the back surface of the lid.

Further, the upper end of the contact projection of the drop cover is brought into contact with the rear surface of the lid, whereby the drop lid is positioned at a predetermined position on the rear surface of the cover via the contact projection. And
Upward movement is prevented. Then, oxygen is supplied from a large number of vents of the drop lid to the live fish tank of the container body partitioned by the drop lid.

Further, the upper end of the contacting projection of the drop cover is in contact with the back surface of the cover, and the drop cover is positioned at a predetermined position. At the same time, the live fish are not shaken greatly, and the live fish are prevented from losing vitality and becoming weak.

Further, since the container body, the lid and the dropping lid having the abutting projection are all made of paper, the used container from which the live fish has been taken out can only be disposed of as general waste. And can be incinerated.

According to a second aspect of the present invention, there is provided the packaging container according to the first aspect, wherein the dropping lid is formed in a rectangular shape, and the abutting projections are integrally provided on the opposite side edges. Is what it is.

The dropping lid is stably positioned at a predetermined position corresponding to the water level of the live fish tank by the contacting protruding pieces on the opposite side edges abutting on the back surface of the lid, and the dropped lid is transported. Tilt due to vibration at the time is prevented.

According to a third aspect of the present invention, there is provided the packaging container according to the first or second aspect, wherein the abutting projection comes into contact with the back surface of the lid according to the level of water contained in the live fish tank. It has a plurality of folds with adjustable height.

The height of the abutting projection is adjusted by bending the abutting projection from a fold at a predetermined position in contact with the back surface of the lid in accordance with the level of water contained in the live fish tank. The upper end is in contact with the rear surface of the lid fitted to the container body.

According to a fourth aspect of the present invention, there is provided the packaging container according to the first aspect, wherein both side plate portions of the container body are formed by an inner plate portion and an outer plate portion, and both end plate portions of the container body are formed inside. It is formed of an end plate portion and an outer end plate portion, and the both outer plate portions or both outer end plate portions have a handle opening.

[0015] Then, by holding the hands on the two hand openings, the container body can be easily lifted and moved. In addition, since both hands are provided on both outer side plates or both outer end plates of the container body and not on both inner side plates or both inner side end plates, seawater contained in the live fish tank can be held by both hands. It is prevented from flowing out of the mouth.

According to a fifth aspect of the present invention, there is provided the packaging container according to the first or fourth aspect, wherein the lid is formed by a two-sided hook opening communicating with the two-sided opening of the container main body and the two-sided opening. Each has a folded protruding piece that is inserted through the two-hand opening and folded toward the upper inside of the two-hand opening,
Things.

Then, the lid is fitted to the container body, and the two folded projections of the lid are inserted through the two hooks through the two hooks, and are folded upward inside the two hooks. The lid is fixed to the container body by the two folded projections, and the lid is prevented from coming off the container body.

[0018]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

Reference numeral 1 denotes a paper container main body.
The side plate portion 4 erected on the opposite side edge portion 3 of the rectangular bottom plate portion 2 and the erected side edge portion 5 of the bottom plate portion 2 are erected on both sides of the both side plate portions 4. A water-resistant live fish tank 7 having a top surface opened by the bottom plate portion 2, the opposing side plate portions 4, and the opposing end plate portions 6 is formed.

The container main body 1 is formed by folding a tough board material 8 having a predetermined thickness, which is molded into a predetermined shape, and the front and back surfaces of the board material 8 prevent water from flowing out. At the same time, it is waterproofed to prevent the inflow of water. The live fish tank 7 formed by folding the board 8 is formed with sufficient waterproofness.

The opposite side edges 3 of the bottom plate 2
Is formed by a fold 3a in which the both side plates 4 are connected to the bottom plate 2 respectively, and the opposing folds 3a are formed in parallel. Further, opposite edge portions 5 of the bottom plate portion 2
Is formed by a fold 5a in which the both end plate portions 6 are respectively connected to the bottom plate portion 2, and the opposing fold lines 5a are formed in parallel.

Next, the both side plate portions 4 are provided with the folds 3a.
An outer plate portion 4a connected to the bottom plate portion 2 through the inner plate portion 4a, and an inner plate portion 4b connected to the outer plate portion 4a via a fold 9 formed in parallel with the outer plate portion 4a at a predetermined interval. , Respectively.

A handle opening 10 is formed in each of the outer plate portions 4a, and an upper edge 11 of the side plate portion 4 is formed at each of the two parallel folds 9. Also,
At the outer end portions of the both inner plate portions 4b, overlapping pieces 13 are formed, which are overlapped with the bottom plate portion 2 through the folds 12, respectively. 14 are slightly cut inward to be formed in parallel with each other, and insertion protruding pieces 15 continuous with both ends of the fold 12 are formed at the outer ends of the two joint ends 14, respectively.

Next, the both end plate portions 6 are provided with the folds 5a.
An outer end plate portion 6a connected to the bottom plate portion 2 through the inner end plate portion, and an inner end plate portion connected to the outer end plate portion 6a via two folds 16 formed in parallel with each other at a predetermined interval. 6b.

The two outer end plates 6a have a handle 17
Are formed, and upper end edges 18 of the end plate portion 6 are respectively formed by the two parallel folds 16. Both end portions of the upper end edge portion 11 of the side plate portion 4 are formed at both end portions of the upper end edge portion 18. Are superimposed to form a series of opening edges 19 of the live fish tank 7 having substantially the same height as a whole.

Further, the reinforcing end plate portion 20 is provided between both end portions of the both outer end plate portions 6a and both end portions of the both outer side plate portions 4a via folds 3b and 5b continuous with the folds 3a and 5a, respectively. Each reinforcing end plate 20 is folded diagonally.
20a are formed respectively.

Further, at both outer end plates 6b, overlapping pieces 22 are formed at the outer ends of the inner end plates 6b via the folds 21 so as to overlap with the bottom plate 2 respectively. At the outer end opposite to the outer end plate portion 6a, and the cutout 24 formed at the outer end opposite to the outer end plate portion 6a to insert the insertion protrusions 15 of the both inner plate portions 4b. Reinforcement side plate portions 25 interposed between the plate portion 4a and the inner plate portion 4b are respectively provided in series. Each of the reinforcing side plate portions 25 is formed with an engaging groove 26 having an opening at one end on the side plate portion 4 side so as to mesh with the reinforcing side plate portion 25 adjacent to the vicinity of the distal end from above and below.

Next, when assembling the container body 1, the outer plate 4 a of the side plate 4 opposed to the bottom plate 2 is bent inward from the fold 3 a, respectively, and the opposite end plate of the bottom plate 2 is bent. The outer end plate portions 6a of the portion 6 are bent upward from the folds 5a, and the reinforcing end plate portions 20 at the four corners of the bottom plate portion 2 are folded in two at the diagonal folds 20a, and the folds 3b and 5b are folded. Fold each toward the inside and upward.

The outer plate portions 4a of the side plate portions 4 of the bottom plate portion 2 are erected substantially vertically on the folds 3a, and the outer end plate portions 6a of the end plate portions 6 of the bottom plate portion 2 facing each other. By standing substantially vertically on the fold line 5a,
Each reinforcing end plate portion 20 at the four corners of the bottom plate portion 2 has a diagonal fold 20
a and the folds 3b and 5b are folded in two, and each of the reinforcing end plate portions 20 is disposed inside the outer plate portion 4a of the side plate portion 4 facing the reinforcing plate.

The inner end plate portions 6b of the end plate portions 6 of the bottom plate portion 2 are sequentially bent from the two folds 16 so as to be vertically arranged along the inside of the outer end plate portion 6a. The fold at the outer end of this opposed inner end plate 6b
The overlapping pieces 22 bent at right angles from 21 are pushed into the vicinity of the folds 5a of the bottom plate portion 2 to be polymerized on the bottom plate portion 2.

The opposed inner end plate portions 6b are vertically supported on the bottom plate portion 2 by using the overlapped pieces 22 superposed on the bottom plate portion 2 as legs, and the opposed inner end plate portions 6b and the inner At the outer end plate 6a outside the end plate 6b, the end plates 6 are respectively assembled on the opposing edge portions 5 of the bottom plate 2 and stand integrally.

The reinforcing side plate portions 25 at both ends of the opposed inner end plate portion 6b are bent at substantially right angles from the respective folds 23, and the reinforcing side plate portions 25 at both end portions of the opposed inner end plate portion 6b are bent.
Are arranged via the reinforcing end plate portions 20 that are folded in two along the inner side of the outer plate portion 4a of the side plate portion 4, respectively.
The engaging grooves 26 of the reinforcing side plate portions 25 facing each other are engaged with each other by being meshed from above and below. Then, the end plates 6 facing each other are supported by the series of reinforcing side plates 25 engaged with each other without falling down.

Further, the inner side plate portions 4b of the side plate portions 4 of the bottom plate portion 2 are sequentially bent from the two folds 9, respectively, and are vertically arranged along the inside of a series of reinforcing side plate portions 25 engaged with each other. Then, the overlapping pieces 13 bent at right angles from the folds 12 at the outer ends of the inner side plate portions 4b facing each other are pushed into the vicinity of the folds 3a of the bottom plate portion 2 to be polymerized on the bottom plate portion 2, and The insertion protruding pieces 15 at both ends of the inner plate 4b to be inserted are respectively inserted into cuts 24 at both ends of the end plate 6 facing each other.

The opposed inner plate portions 4b are vertically supported on the bottom plate portion 2 by using the overlapped pieces 13 superposed on the bottom plate portion 2 as legs, and the insertion projections 15 at both ends are cut. The joining end portions 14 at both ends of the opposed inner plate portions 4b respectively inserted into 24 are joined to the inner surface portions of the opposed inner plate portions 4b,
The side plate portions 4 are assembled on the opposing side edge portions 3 of the bottom plate portion 2 by the opposed inner plate portion 4b and the outer side plate portion 4a outside the inner end plate portion 4b, and are integrally erected.

Also, both ends of the overlapping piece 13 of the opposed inner plate 4b are fitted to both ends of the overlapping piece 22 of the opposed inner end plate 6b to be overlapped on the bottom plate 2 and this opposed inner plate is formed. End plate 6b
The overlapping piece 13 of the inner plate portion 4b opposed at both ends of the overlapping piece 22
Are positioned and held, and the opposite inner plate portion 4b
Are prevented from moving toward the inner side away from the respective outer plate portions 4a.

Accordingly, the bottom plate 2, a series of side plates 4 opposed to the bottom plate 2, and a series of end plates 6 opposed to the bottom plate 2 and the opposed side plates 4 open the upper surface. A water-resistant live fish tank 7 is formed to form a paper container main body 1. The upper end edge 11 of the opposing side plate 4 and the upper end edge 18 of the end plate 6 oppose each other. A series of opening edges 19 are configured.

The live fish tank 7 includes a series of inner side plate portions 4b of the side plate portions 4 opposed to the waterproofed bottom plate portion 2;
A pair of inner end plates 6b of a series of waterproof end plates 6 which have been subjected to a waterproofing process on the bottom plate 2, between the both ends of the inner plate 4b and both ends of the inner end plate 6b, and The part 2 is made up of a series of four-fold folded and folded waterproof end-plate parts 20 which are waterproofed.
Even if the seawater is stored up to the lower part of 17, this seawater is kept in the live fish tank 7 without leaking from the live fish tank 7.

Next, reference numeral 27 denotes a paper lid which is detachably fitted to the container body 1 and closes the upper surface of the opening of the live fish tank 7 of the container body 1. The lid 27 is made of the live fish tank. The lid top plate 28 which is placed on a series of opening edges 19 of the upper surface of the opening 7 and closes the upper surface of the opening of the live fish tank 7, and is integrally formed on opposite side edges of the lid top plate 28. Opposing lid side plate portions respectively engaged with the outer side portions of the opposing side plate portions 4 of the container body 1
29 and the opposite side edge portions of the lid top plate portion 28 and the opposite lid side plate portion 29 which are integrally formed with the outer side portions of the opposite end plate portion 6 of the container body 1 and opposed to each other. And a lid end plate portion 30.

The opposing lid side plate portions 29 each have a lid handle opening 31 communicating with the handle opening 10 formed in the outer side plate portion 4a of the opposing side plate portion 4 of the container body 1. Folded protrusions 33 are respectively connected to the lid handle opening 31 via folds 32, and the two folded protrusions 33 have folds 34 that fold the two folded protrusions 33 in two. The two folded projections 33 are inserted through the handle opening 10 from the cover handle opening 31 and are turned upward inside the two handle openings 10.

The facing lid end plate portions 30 each have a lid handle opening 35 communicating with a handle opening 17 formed in the outer end plate portion 6a of the opposite end plate portion 6 of the container body 1. ,
Folded protrusions 37 are respectively connected to the lid cover openings 35 via folds 36. The both folded protrusions 37 have folds 38 for folding the two folded protrusions 37 into two folds. Then, the both folded protruding pieces 37 are inserted through the handle opening 17 from the cover handle opening 35 and are turned upward inside the both handle openings 17.

The lid 27 is made of the cardboard 8 made of the same material as that of the container body 1. The cardboard 8 is subjected to a waterproof treatment on its front and back surfaces similarly to the container body 1. ing.

Next, reference numeral 39 denotes a paper drop lid which is vertically movably fitted into the live fish tank 7 in accordance with the water level contained in the live fish tank 7 of the container body 1. It has a rectangular lid body 40 fitted into the live fish tank 7,
A large number of ventilation holes 41 penetrating in a vertical direction for supplying air or oxygen into the live fish tank 7 are formed in the cover 40 at a predetermined interval over substantially the entire surface of the lid body 40.

Further, the lid body 40 is provided with a pair of opposed side edge portions 42.
Contact projections 43 which are bent upward at the folds 42a and engage with the opposite inner plate portions 4b of the live fish tank 7 of the container main body 1 are integrally provided to project upward, respectively. The piece 43 has an abutment portion 44 at the upper end thereof for abutting on the back surface of the lid top plate 28 of the lid 27.

The opposite contacting projection 43 has a plurality of folds 45 that can adjust the height of a contacting portion 44 that contacts the back surface of the lid top plate 28. The plurality of folds 45 are formed in parallel with a predetermined interval in the length direction of the contact protruding piece 43. When the contact protruding piece 43 is bent at a right angle from the fold 45 at a predetermined position in the plurality of folds 45, the width of the contact portion 44 is increased.

Further, the lid main body 40 has opposite edge portions 46.
Engagement projections 47 which are bent upward at the folds 46a and engage with the opposite inner end plate portions 6b of the live fish tank 7 of the container body 1 are integrally provided to project upward.

Thus, the drop lid 39 is attached to the container body 1.
And the cardboard 8 made of the same material as the lid 27,
The board 8 is waterproofed on its front and back surfaces in the same manner as the container body 1 and the lid 27.

Next, the operation of the above embodiment will be described.

A predetermined amount of seawater A is stored in the live fish tank 7 of the container body 1.
One or a plurality of live fish B are respectively accommodated, and a dropping lid 39 is fitted in accordance with the water level of the live fish tank 7.

In this case, the abutting projection 43 of the drop lid 39
Are engaged with the opposite inner plate portions 4b of the live fish tank 7, respectively.
The opposing engaging projections 47 are respectively engaged with the opposing inner end plate portions 6b of the live fish tank 7, and the dropping lid 39 is lowered by the opposing abutting projections 43 and the engaging projections 47 to the water level of the live fish tank 7. , That is, at a position corresponding to the surface of the seawater A. Then, the contact portion 44 at the upper end of the contact protrusion 43 facing the drop lid 39 is positioned on the upper surface of the opening of the container body 1.

The amount of seawater in the live fish tank 7 accommodates a small amount that the live fish B can drink or an amount that allows the live fish B to move around a little. Desirably, the amount is such that vitality is not lost over several hours.

Next, the lid 27 is fitted over the container main body 1 and the upper surface of the opening of the container main body 1 is closed by the lid top plate 28 of the lid 27, whereby the lid top plate of the lid 27 is closed. The contact portion 44 at the upper end of the contact protruding piece 43 of the drop lid 39 contacts the rear surface of the portion 28.

Also, the contact portion 44 of the contact protruding piece 43 of the cover 39 is brought into contact with the back surface of the cover top plate 28 of the cover 27,
A lid which is dropped on the back surface of the lid
39 is positioned at a predetermined position corresponding to the surface of the seawater A in the live fish tank 7, and is prevented from moving upward. Then, air or oxygen is supplied to the live fish tank 7 of the container main body 1 divided by the lid main body 40 of the drop lid 39 from the many ventilation holes 41 of the lid main body 40 of the drop lid 39.

In this case, by placing solid oxygen larger than the ventilation hole 41 in the ventilation hole 41 at a predetermined position among the many ventilation holes 41 of the lid body 40 of the dropping lid 39, the oxygen from the solid oxygen is reduced. Is supplied into the live fish tank 7 from each ventilation hole 41, and the live fish B in the live fish tank 7 does not lose its vitality more sufficiently for a predetermined time.

Further, by fitting the lid 27 to the container body 1, the lid handle opening 31 of the lid side plate portion 29 of the lid body 27 facing the outer plate portion 4 a of the opposite side plate portion 4 of the container body 1. Each of the openings is formed to communicate with the formed opening 10 and the lid
27 is a handle opening formed on the outer end plate portion 6a of the opposite end plate portion 6 of the container body 1.
The communication openings 17 are respectively formed.

Then, the folded protruding pieces 3 of the lid handles 31 and 35
3 and 37, the container body 1 from the respective lid handles 31 and 35
Through the openings 10 and 17
By folding back to the inside upper part of 10 and 17, the lid 27 fitted to the container main body 1 is fixed to the container main body 1 by these folded protruding pieces 33 and 37, and the lid 27 is easily detached from the container main body 1. Is securely held by the container body 1.

Further, the contact portion 44 of the contact protruding piece 43 of the drop cover 39 is brought into contact with the back surface of the cover top plate 28 of the cover 27, and this cover top plate portion
Since the drop lid 39 is positioned at a predetermined position at 28, the drop lid 39 is prevented from being pushed up even if it receives the pressure of the seawater A due to vibration during transportation or the like. At the same time, the live fish B is not largely shaken, and the live fish B is prevented from losing vitality and becoming weak.

Further, the container body 1 may be vibrated during transportation or the like.
When the container body 1 is inclined, the falling water 39 blocks the seawater A in the live fish tank 7 and prevents the seawater A from flowing at a time in the direction in which the container body 1 is inclined. In addition, the seawater A flowing out of each of the vent holes 41 of the dropping lid 39 onto the dropping lid 39 is returned to the horizontal state of the container body 1, and the seawater A flows into the live fish tank 7 from each of the ventilation holes 41.

Further, since the container body 1, the lid 27, and the dropping lid 39 having the contact projection 43 and the engagement projection 47 are all made of paper, the used container from which the live fish B is taken out is generally used. Not only can it be disposed of as waste, but it can also be disposed of by incineration, and costs can be reduced as compared to paid industrial waste.

Further, the drop lid 39 is provided with the opposite side edge portion 42.
Since the contact protrusions 43 are integrally provided upright on the upper surface, the dropping cover 39 is attached to the live fish tank 7 by the opposing contact protrusions 43 that contact the back surface of the lid top plate 28 of the lid 27. It is positioned in a stable state at a predetermined position according to the water level.
Is prevented from tilting due to vibration during transportation or the like.

The abutment piece 43 has a plurality of folds 45 that can be adjusted in height to abut against the back surface of the lid top plate 28 of the lid 27 in accordance with the level of water contained in the live fish tank 7. By having this, the contact protrusion 43 is bent from a fold 45 at a predetermined position in contact with the back surface of the lid top plate 28 according to the water level stored in the live fish tank 7, and the height is adjusted. Abutment piece 43
The contact portion 44 at the upper end of the cover 27 is securely brought into contact with and supported by the back surface of the lid top plate 28 of the lid 27 fitted on the container body 1.

At this time, the contact protruding piece 43 is formed as a vertical protruding piece in a state where the contact part 44 at the upper end is bent vertically without forming a horizontal shape by bending the contact part 44 at the upper end. The upper end of the protruding piece may be in contact with the back surface of the lid top plate 28.

Further, both side plate portions 4 of the container body 1 are formed by an inner plate portion 4b and an outer plate portion 4a, and both end plate portions 6 of the container body 1 are formed by an inner end plate portion 6b and an outer end plate portion 6a. The both outer plate portions 4a and both outer end plate portions 6a are
By having the hands 0 and 17, the container body 1 can be easily lifted and moved by hanging the hands 10 or the hands 17.

Further, since both hand openings 10 and 17 are provided on both outer side plate portions 4a and both outer end plate portions 6a of the container main body 1 and are not provided on both inner side plate portions 4b and both inner end plate portions 6b, the live fish By storing the seawater A in the tank 7 up to near the lower ends of the two-hand holding ports 10 and 17, the seawater A contained in the live fish tank 7 is filled with the two-hand holding ports 10 and 17.
It is prevented from flowing out of 17.

[0064]

According to the first aspect of the present invention, a live fish is accommodated in a live fish tank of a paper container main body together with a predetermined amount of seawater, and a paper drop lid is fitted in accordance with the water level of the live fish tank. By fitting a lid made of paper on the container body and closing the upper surface of the opening of the container body with the lid, the upper end of the contacting projection of the dropping lid contacts the back surface of the lid. The falling lid can be positioned at a predetermined position on the back surface of the lid via the contacting protruding piece, and the falling lid can be prevented from moving upward.

Further, since the drop lid has a large number of air holes, it is possible to sufficiently supply oxygen from the large number of the air holes to the live fish tank of the container body partitioned by the drop lid. In addition, since the live fish tank of the container main body is partitioned at a predetermined position by the dropping lid, when this container main body is tilted, seawater in the live fish tank is prevented from flowing at once in the direction of inclination of the container main body. It can protect live fish in the live fish tank.

Further, the upper end of the contact piece of the drop lid is brought into contact with the back surface of the lid, and the drop lid is positioned at a predetermined position. At the same time, the live fish are not shaken greatly, and it is possible to prevent the live fish from losing vitality and becoming weak.

Further, since the container body, the lid and the dropping lid having the abutting projection are all made of paper, the used container from which the live fish has been taken out can only be disposed of as general waste. Instead, it can be incinerated and the overall cost can be reduced.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the drop lid is formed in a rectangular shape, and the contact protruding pieces are integrally erected on opposing side edges. Therefore, the drop lid can be stably positioned at a predetermined position according to the water level of the live fish tank by the contact protrusion on the opposite side edge that contacts the back surface of the lid, and this drop lid reduces the water pressure. Even if it is received, it is not easily tilted, and can be reliably prevented from being tilted by vibration during transportation.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, in addition to the effect of the first aspect, the abutting protruding piece is provided to abut against the rear surface of the lid according to the water level contained in the live fish tank. Since it has a plurality of folds whose height can be adjusted, by adjusting the height by bending the contact protruding piece from the fold at a predetermined position in contact with the back surface of the lid according to the water level accommodated in the live fish tank ,
The upper end of the contact protruding piece can be reliably brought into contact with the back surface of the lid fitted on the container body.

According to the fourth aspect of the present invention, in addition to the effects of the first aspect, both side plates of the container body are formed by the inner plate and the outer plate, and both end plates of the container body are formed by the inner ends. It is formed by a plate portion and an outer end plate portion, and the both outer plate portions or both outer end plate portions have a handle opening, so that the container body is easily lifted and moved by hanging the hands on the both handle openings. The seawater contained in the live fish tank can be held in both hands by opening both hands at the outer plate or outer end plate of the container body and not at the inner plate or inner end plate. It can be prevented from flowing out of the hook.

According to the fifth aspect of the present invention, in addition to the effects of the first or fourth aspect, the lid is provided with a two-sided hook opening communicating with the two-sided opening of the container body, and the two-handed opening is connected to the two-handed opening. Since each of the folded projections is inserted into the hook and folded back toward the inside upper side of the two-handed opening, the lid is fitted to the container body, and the two folded projections of the lid are removed from the two-handed opening. The lid can be fixed to the container body by the folded pieces so that the lid can be prevented from coming off from the container main body by inserting the both-hands-holding opening and folding it upward inside the two-hands-holding opening.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a packaging container according to an embodiment of the present invention.

FIG. 2 is a developed plan view of the container main body.

FIG. 3 is a developed plan view of the drop lid.

FIG. 4 is a sectional view of the packaging container in the assembled packaging state.

FIG. 5 is a partial perspective view showing an assembled state of the upper plate portion and the end plate portion.

FIG. 6 is a sectional view of an end plate portion fitted with the upper cover.

FIG. 7 is a sectional view of a side plate portion fitted with the upper cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Bottom plate part 3 Side edge part 4 Side plate part 4a Outer plate part 4b Inner plate part 5 Edge part 6 End plate part 6a Outer end plate part 6b Inner end plate part 7 Live fish tank 10, 17 Handle opening 27 Lid 31, 35 Lid opening 33, 37 Folded protruding piece 39 Dropping lid 41 Vent hole 43 Contact protruding piece 45 Fold

Claims (5)

(57) [Claims] 1. A side plate portion erected on an opposite side edge portion of a rectangular bottom plate portion, and a side plate portion erected on an opposite edge portion of the bottom plate portion and a series of end plate portions. A paper container body formed with a waterproof live fish tank having an open upper surface, a paper lid removably fitted to the container body and closing the upper opening of the container body; Paper having a contact protruding piece which is vertically movably fitted in accordance with the water level contained in the live fish tank and which comes into contact with the rear surface of the lid, and a large number of ventilation holes for supplying oxygen to the live fish tank. A drop lid made of
A packaging container comprising: 2. The packaging container according to claim 1, wherein the dropping lid is formed in a rectangular shape, and abutment protruding pieces are respectively integrally provided upright on opposite side edges. 3. The abutment projection has a plurality of folds, the height of which can be adjusted to abut against the rear surface of the lid according to the level of water contained in the live fish tank. Or the packaging container according to 2. 4. Both side plates of the container body are formed by an inner plate portion and an outer plate portion, and both end plates of the container body are formed by an inner end plate portion and an outer end plate portion, and the both outer plate portions are provided. 2. The packaging container according to claim 1, wherein both outer end plate portions have a handle opening. 3. 5. The lid body has a two-sided hook opening communicating with the two-sided opening of the container body, and a folded projection that is inserted through the two-sided opening from the two-sided opening and is turned upward inside the two-sided opening. The packaging container according to claim 1, further comprising a piece.