JP2001072057A - Folding assembly container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily assemble a container in a short time when in use by forming a container body as a square box body with four side walls fitted to an upper surface of a bottom plate, and engaging locking means formed on a side edge part adjacent to the side walls with each other in an attachable/detachable manner to fix a corner part. SOLUTION: A folding assembly container comprises a foam synthetic resin container body 1 and a lid body, the container body 1 is a square box body with four side walls 4 to 7 on an upper surface of a bottom plate 3 in an inwardly folding manner, and the inside thereof is demarcated into a plurality of small chambers 9 by a plurality of partitions 8. The side walls 4 to 7 are assembled into a square box, and corner parts thereof are fixed by fitting a flange part to a stepped groove, and engaging a locking means therewith. The flange part projecting from both side edges of the side walls 6 and 7 is fitted to the outside of stepped grooves 16 and 17 formed on both side edges of the side walls 4 and 5, and locking means 18 and 19 provided on the side walls 4 and 5 are fitted to locking means 27 and 32 provided on the side walls 6 and 7 in an attachable/detachable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable container made of foam synthetic resin which can be assembled without using nails or screws. For example, meat, seafood, etc. The foodstuffs such as vegetables and fruits are stored and can be suitably used for home delivery to each consumer while keeping them cool or warm.

[0002]

2. Description of the Related Art Conventionally, containers of this type have often been made of corrugated cardboard. However, these containers have low heat insulating properties, poor water resistance, and are not durable. There was a problem that it could not withstand use. In addition, there is a material in which a heat insulating material is attached to the inside of a corrugated cardboard to improve heat insulating properties. However, there is a problem that water resistance and durability are poor and the cost of the container is high. Further, a material in which a heat insulating material is adhered to the inside of a plastic sheet is also used. However, due to its large weight, not only is it difficult to handle but also the cost is increased.

[0003]

SUMMARY OF THE INVENTION The present invention is directed to a container which eliminates the above-mentioned problems of the conventional container, and can be folded so as not to be bulky when storing or transporting the container. It is intended to provide a container.

[0004]

In order to achieve the above object, a foldable assembly container according to the present invention comprises a container body made of a synthetic resin foam and a lid detachably mounted on the container body. The container body is a rectangular box body having four side walls attached to the bottom plate upper surface so as to be foldable inward at their bases. When the side walls are assembled in a box shape, the container body has a box shape. The locking means formed on the adjacent side edges of the side wall forming the corner portion of each other are detachably engaged with each other to fix the corner portion, and further, when the side wall is folded, Are arranged so that the side walls of the two overlap each other in a plate shape without any gap.

If the locking means has a concave-convex fitting structure, the structure is simplified and the corners are firmly fixed.

[0006] It is easy to attach the side wall to the bottom plate via an adhesive tape or a hinge. The hinge is fixed to the side wall and the base of the bottom plate by welding, bonding, bolts, screws or the like.

Further, by directly connecting the side wall and the bottom plate by a hinge structure, it is possible to omit an attaching means such as an adhesive tape or a hinge, and the durability and the appearance are improved.

Further, it is convenient that the inside of the container body is partitioned by at least one detachable partition plate.

[0009]

In order to assemble the foldable container having the above structure into a rectangular box, the four side walls of the container body are formed upright on the upper surface of the bottom plate to form a box, and then the side edges of the side walls adjacent to each other are formed. May be engaged with each other so as to be freely engaged and disengaged.

At this time, if a lid is attached to the container body, the lid prevents each side wall from opening outward.

By partitioning the interior of the container into two or more small chambers with a partition plate, for example, meat and vegetables can be stored separately, or the contents can be separated from a cold storage agent, a cold storage agent, a heat storage agent, or a heat storage agent. Can be stored.

Further, the container having the above configuration is stored in a folded state.
To transport, remove the lid, release the engagement of the locking means, fold each side wall inward, make each side wall overlap each other without any gap, and then cover the lid. Good. This allows the container to be folded into a very compact shape, requiring less space for storage and transport.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings, but it is needless to say that the present invention is not limited to the following embodiment.

FIG. 1 is an overall perspective view showing an embodiment of the foldable container according to the present invention. As shown in FIG. 1, the container of this embodiment includes a container body 1 and a lid 2 made of a synthetic resin foam.
Is provided.

The foamed synthetic resin is not particularly restricted but includes, for example, polyolefins such as polystyrene, polyethylene and polypropylene, polyvinyl chloride and polyurethane. Of these, polypropylene is particularly preferred in view of durability.

As shown in FIG. 2, the container body 1 has a bottom plate 3.
Is a rectangular box having four side walls 4, 5, 6, 7 foldably attached inward at the bases thereof. The inside is divided into a plurality of small chambers 9 by a plurality of partition plates 8. I have.

As shown in FIG. 3, the bottom plate 3 has ridges 11, 1 with different heights on the upper surfaces of the three edges of the substrate 10, respectively.
2 and 13 are provided. The ridge 11 is formed on the side of the side wall 5 with a height equal to the thickness of the side wall 4, and the ridge 12 is formed on the side of the side wall 6 with a height equal to the sum of the thicknesses of the side walls 4 and 5. Further, the ridge 13 is formed on the side of the side wall 7 with a height equal to the sum of the thicknesses of the side walls 4, 5 and 6. In addition, on the inner surfaces of the ridges 12 and 13,
A plurality of guide grooves 14 into which the partition plate 8 can be removably inserted are formed.

As shown in FIG. 4, the side wall 4 is formed by cutting out step grooves 16 and 17 outside the left and right side edges of the plate-like side wall body 15, and one step groove 16 has a ridge from its lower end. 12
A convex locking means 18 is formed at a position raised by the height of the groove, and the other step groove 17 has a ridge 1 from its lower end.
A convex locking means 19 is formed at a position raised by a height of 3.

As shown in FIG. 5, the side wall 5 has step grooves 21 and 22 formed on the outer sides of the left and right side edges of the flat side wall body 20 having a height lower than the side wall 4 by the height of the ridge 11. One of the step grooves 21 has a ridge 1 from the height of the ridge 12.
A convex locking means 23 is formed at a position raised from the lower end by a height obtained by subtracting the height of 1 from the lower end, and the height of the ridge 11 from the height of the ridge 13 is formed in the other step groove 22. A convex locking means 24 is provided at a position raised from the lower end by the deducted height.
Are formed.

As shown in FIG. 6, the side wall 6 has a pair of left and right flange portions 26 inside the left and right side edges of a flat side wall body 25 having a height lower than the side wall 4 by the height of the ridge 12. At the lower end of each flange portion 26, a concave locking means 27 is formed at the lower end of each of the locking means 18 of the convex side wall 4 and the locking means 23 of the side wall 5 so as to be detachably engageable. ing.
On the outer surface of the side wall main body 25, a pair of notch grooves 28 are formed on both left and right side edges, and a plurality of guide grooves 29 connected to the partition plate guide groove 14 of the bottom plate 3 are formed on the inner surface. ing.

As shown in FIG. 7, the side wall 7 has a pair of left and right flange portions 31 inside the left and right side edges of the flat side wall main body 30 having a height lower than the side wall 4 by the height of the ridge 13. At the lower end of each flange portion 31, there is formed a concave locking means 32 capable of removably engaging with the locking means 19 of the convex side wall 4 and the locking means 24 of the side wall 5. ing.
A plurality of guide grooves 29 are formed on the inner surface of the side wall main body 30 to be connected to the guide grooves 14 for the partition plate of the bottom plate 3.

The partition plate 8 is a simple flat plate as shown in FIG. The lid 2 is of an external fitting type. As shown in FIGS. 1 and 9, a reinforcing plate 34 is erected on the periphery of the rear surface of a rectangular top plate 33, and a side wall is formed along the inside of the reinforcing plate 34. The groove 37 has a thickness slightly larger than the thickness of the groove 37.

The container having the above structure can be easily assembled without using nails or screws. To do this, first
As shown in (a), on the ridge 11 of the bottom plate 3 and the ridge 11
Side walls 5 and the bases of the side walls 4 are attached via adhesive tapes 35 so that the side walls 4 and 5 face each other and can be folded inside.

Next, as shown in FIG.
The bases of the side walls 6 and 7 are mounted on the ridges 12 and 13 via an adhesive tape 36 such that the side walls 6 and 7 face each other and are foldable inward.

Subsequently, the flange portions 26 and 31 projecting from both side edges of the side walls 6 and 7 are fitted to the outside of the step grooves 16, 17 and 21, 22 formed on both side edges of the side wall 4 and side wall 5. At the same time, the convex locking means 18, 19 and the locking means 23, 24 provided on the side walls 4 and 5 [FIG.
(See (a)) is fitted to the concave locking means 27 and the locking means 32 provided on the side wall 6 and the side wall 7 so as to be able to be freely fitted and detached.
At this time, since the foamed synthetic resin has a certain degree of elasticity,
The engagement and disengagement of the locking means is easy.

Thus, each side wall 4, 5, 6, 7 is
The upper part is assembled in a rectangular box shape, and the corners are firmly fixed by fitting the flange with the step groove and engaging the locking means. At this time, although not shown, provision of temporary joining means such as a hook-and-loop fastener on all or a part of the flange portion and the step groove prevents the side wall from inadvertently falling down during the assembly work, The workability of assembly can be improved. The temporary joining means such as a hook-and-loop fastener is preferably provided at the upper end portions of the flange portion and the step portion.

Finally, the partition plates 8 shown in FIG. 8 are inserted into the guide grooves 29 and 14 formed on the inner surfaces of the side walls 6 and 7 and the ridges 12 and 13.
After assembling the container body 1 shown in FIG. 2, the lid 2 shown in FIGS. 1 and 9 is detachably attached to the container body 1 to complete the assembly of the entire container. At this time, the lid 2 is an external fitting type, and the tip of each side wall 4, 5, 6, 7 is
And the reinforcing plate 34 of the lid 2 prevents the side walls 4, 5, 6, 7 from opening outward.

When storing and transporting the container having the above structure, the entire container can be compactly folded to save the space required for storage and transport. To do this, after removing the lid 2 and the partition plate 8, first, as shown in FIG. 11A, the engagement of the locking means 18, 19 of the side wall 4 is released, and the side wall 4 is turned inward. The side wall 4 is provided on the substrate 10 of the bottom plate 3.
Since it is directly mounted on the substrate 10, it overlaps on the substrate 10 without any gap.

Subsequently, as shown in FIG. 11B, the engagement of the locking means 23 and 24 of the side wall 5 is released, and the side wall 5 is turned inward. Since the side wall 5 is mounted on the ridge 11 of the bottom plate 3, the side wall 5 overlaps the side wall 4 without any gap.

Next, as shown in FIG.
Inward. At this time, the engagement of the locking means 27 of the side wall 6 has been released. Since the side wall 6 is mounted on the ridge 12 of the bottom plate 3, the side wall 6 overlaps the side wall 5 without any gap.

Subsequently, as shown in FIG. 11D, the side wall 7 is turned inward. Also at this time, the engagement of the locking means 32 of the side wall 7 has already been released. The side wall 7 is a ridge 1 of the bottom plate 3.
3 so that they overlap on the side wall 6 without any gap. At this time, the flange portion 31 of the side wall 7
Is fitted into the cutout groove 28 of the side wall 6 to prevent a gap from being formed between the side wall 7 and the side wall 6. Finally, FIG.
As shown in FIG. 1 (e), the lid 2 is detachably mounted on the lid.
Note that the partition plates 8 may be separately put together or may be placed between the folded container body 1 and the lid 2. A grip 37 is formed substantially at the center of the lid 2. Thus, as shown in FIG. 11E, the entire container is folded compactly and in a plate shape.

In the above description, an example was shown in which the side wall was attached to the bottom plate via an adhesive tape. However, the adhesive tape is not only easy to attach, but also replaced with a new adhesive tape in case of breakage. Is easy, and
Since the side walls can be attached to the bottom plate without any gap, there is an advantage that the cooling or heat retaining efficiency can be enhanced.

When the side wall is attached to the bottom plate via a hinge, it may be made of metal, plastic, or the like, but a hinge made of the same synthetic resin as the foamed synthetic resin of the side wall and the bottom plate is used (for example, the side wall and the bottom plate are made of plastic). When using foamed polypropylene, use a hinge made of polypropylene.)
As a result, welding and adhesion are facilitated, and since the same material is used, it is not necessary to separate it at the time of reuse, thereby facilitating recycling.

Further, as shown in FIGS. 12 and 13, the side wall and the bottom plate can be directly connected by a hinge structure without using an attaching means such as an adhesive tape or a hinge. For example, when the case of the bottom plate 3 and the side wall 4 is described,
As shown in the figure, convex portions 3a each having an R are provided on the edge of the bottom plate 3 at appropriate intervals, and a concave portion 4a is provided at the base of the side wall 4 so as to fit with the convex portion 3a. A notch 4b corresponding to the thickness of the bottom plate 3 is formed at the base end edge of the base plate 3. Reference numeral 39 denotes a core rod penetrating the convex portion 3a and the concave portion 4a, and is made of, for example, metal such as a piano wire, polypropylene, or the like. When the side wall 4 rotates by 90 °, the notch 4b at the base edge of the side wall 4 abuts and fits on the end of the bottom plate 3, and the side wall 4 does not rotate by more than 90 ° and is substantially vertical. Form side walls in state. In this case, since the notch 4b of the side wall 4 is in contact with and fitted to the end of the bottom plate 3, little gap is formed, and airtightness is maintained, which is effective for enhancing cold insulation and heat insulation. is there.

As shown in FIG. 14, an arc-shaped concave portion 3b is provided at the edge of the bottom plate 3, and the arc-shaped concave portion 3b is formed at the base end of the side wall 4.
It is also possible to form a substantially vertical side wall by providing an arc-shaped convex portion 4c slidable with the side wall 4 and rotating the side wall 4 about the core rod 39. In this case, the arc-shaped convex portion 4c of the side wall 4 in the vertical state is in a state of biting into the arc-shaped concave portion 3b of the bottom plate 3, so that a gap is difficult to be formed. And shut off the flow of cold and warm air. In the drawing, reference numeral 4d denotes a divided piece of the side wall 4. An example in which the side wall 4 is formed in a state where the divided piece 4d is removed, a core bar 39 is attached, and then the divided piece 4d is bonded or welded. Show.

FIGS. 15 and 16 show another embodiment of the present invention, which has a structure in which an opening / closing lid 41 is further provided in the lid 2. In the figure, reference numeral 40 denotes a hinge (in the illustrated example, it is buried flush with the lid 2), and reference numeral 44 denotes a handle. Open / close lid 41
The hook-and-loop fasteners 42 and 43 are attached to the stepped portion of the cover 2 and the stepped portion of the lid 2 that receives the opening / closing lid 41, respectively. Such an opening / closing lid 41, for example, once contains foods and the like,
In the case of inspecting the contents, adding the contents later, or taking out the contents on the contrary, the operation can be easily performed by opening and closing the opening / closing lid 41 while the lid 2 is kept on. It is convenient.

In the above, the cover 2 is exemplified as an external fitting type, but it goes without saying that the lid 2 may be an internal fitting type. In addition, coloring or decoration may be given, and a key may be attached to the lid 2 or the opening / closing lid 41 as necessary.

[0038]

As described above, the present invention is made of a foamed synthetic resin, so that it is excellent in heat insulation, water resistance and durability. Therefore, it is suitable for storing foods and delivering them to the consumer's home while keeping them cool or warm. For example,
In response to the order from the consumer, the food supplier assembles the container, stores the ingredients and, if necessary, a cold storage agent or a cold storage agent or a heat storage agent or a cold storage agent, and delivers it to the consumer, and the consumer takes out the contents. Thereafter, the container is folded and set on the eaves, and the food dealer collects the container and repeats the above operation again. Also,
Conversely, an empty box can be kept at home at all times, and the trader can take it out to the eaves on the next day, and the trader can collect it.

Further, since the present invention is a foldable assembly container, it can be assembled easily and in a short time without using nails or screws at the time of use. Conversely, it can be easily and compactly folded during container storage and transportation,
Space required for storage and transportation can be saved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a foldable assembly container showing one embodiment of the present invention.

FIG. 2 is an overall perspective view of a container body.

FIG. 3 is a perspective view of a bottom plate.

FIG. 4 is a perspective view of a side wall.

FIG. 5 is a perspective view of a side wall.

FIG. 6 is a perspective view of a side wall.

FIG. 7 is a perspective view of a side wall.

FIG. 8 is a perspective view of a partition plate.

FIG. 9 is a rear perspective view of the lid.

FIG. 10a is a perspective view showing a step of assembling the container of the present invention.

FIG. 10b is a perspective view showing a step of assembling the container of the present invention.

FIG. 11a is a perspective view showing a folding step of the container of the present invention.

FIG. 11b is a perspective view showing the step of folding the container of the present invention.

FIG. 11c is a perspective view showing a folding step of the container of the present invention.

FIG. 11d is a perspective view showing a step of folding the container of the present invention.

FIG. 11e is a perspective view showing the step of folding the container of the present invention.

FIG. 12a is a schematic diagram showing an example (folded state) in which a bottom plate and a side wall are connected by a hinge structure.

FIG. 12b is a schematic view showing an example (vertical upright state) in which the bottom plate and the side wall are connected by a hinge structure.

FIG. 13 is a sectional view taken along line AA and BB of FIG. 12b.

FIG. 14a is a schematic view showing another example (in a folded state) in which a bottom plate and a side wall are connected by a hinge structure.

FIG. 14b is a schematic view showing another example (vertical standing state) in which the bottom plate and the side wall are connected by a hinge structure.

FIG. 15 is an overall perspective view of a foldable assembly container showing another embodiment of the present invention.

FIG. 16 is a sectional view of the foldable assembly container of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Container main body 2 Lid 3 Bottom plate 3a Convex part 3b Arc-shaped concave part 4, 5, 6, 7
Side walls 4a, 4b Notch portion 4c Arc-shaped convex portion 8 Partition plate 9 Small chamber 10 Substrate 11, 12, 13
Protrusion 14 Guide groove 15 Flat side wall body 16, 17 Step groove 18, 19 Locking means 20 Flat side wall body 21, 22 Step groove 23, 24 Locking means 25 Flat side wall body 26 Flange 27 Locking means 28 Notch groove 29 Guide groove 30 Flat side wall main body 31 Flange part 32 Locking means 33 Top plate 34 Reinforcement plate 35, 36 Adhesive tape 37 Depressed groove 38 Handle 39 Core rod 40 Hinge 41 Openable lid 42, 43 Surface fastener 44 Handle

Claims (6)

[Claims] 1. A container body made of a foamed synthetic resin, and a lid body detachably mounted on the container body, wherein the container body has four side walls on a bottom plate upper surface. In the state where the side wall is assembled in a box shape, the side wall forming the corner portion of the box shape is formed on adjacent side edges of the side wall forming a box shape. The folding means, wherein the means are releasably engaged with each other to fix the corner portions, and further, when the side walls are folded, these side walls overlap each other in a plate shape without any gap. Type assembly container. 2. The foldable container according to claim 1, wherein the locking means has a concave-convex fitting structure. 3. The foldable assembly container according to claim 1, wherein the side wall is attached to the bottom plate via an adhesive tape. 4. The foldable container according to claim 1, wherein the side wall is attached to the bottom plate via a hinge. 5. The foldable assembly box according to claim 1, wherein the side wall and the bottom plate are connected by a hinge structure. 6. The collapsible container according to claim 1, wherein at least one partition plate is detachably provided on the container body.