JPH0776342A - Folding plastic container - Google Patents

Abstract

PURPOSE:To provide a folding plastic container which can be easily reused for recycling resources and easily assembled in a low cost and from which the contents can be taken out in the stacked state and further, in which the contents can be completely contained so as to be free from dusts. CONSTITUTION:A folding plastic container is provided with the top plate 2, the bottom plate 3, a pair of long side plates 4 composed of the upper long side plate 41 and the lower long side plate 42 rotatably connected to the top plate 2 and the bottom plate 3, and a pair of swinging-up plates 5 rotatably connected to the top plate 2 and fitted to the bottom plate 3 and the long side plate 4. Shafts 6 and shaft bearings 7 unified as a unit are formed by the use of the same material with these members in the connection parts of respective members. The shafts 6 and the shaft bearings 7 can be connected to each other and at least one of the swinging-up plates 5 can be rotated outward to be superposed on the upper face of the top plate 2. The swinging-up plate 5 is fit to the bottom plate 3 and the long side plate 4 from the outside, in the extended assembling state of the long side plat 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable synthetic resin folding container used for transportation and transportation of articles, and is particularly suitable for transportation and transportation of canned beverages. It is related to the container.

[0002]

2. Description of the Related Art Generally, a foldable container that can be assembled in a box shape for transportation and transportation of articles and can be folded during storage is an upper peripheral frame, a bottom plate, and a foldable container. A pair of long side plates including an upper long side plate and a lower long side plate rotatably connected to the upper peripheral frame and the bottom plate, and a bottom plate and a long side plate that are rotatably connected to the upper peripheral frame. And a pair of tilting plates adapted to support the long side plate are known (for example, Japanese Utility Model Publication No. 58-866).
No. 3, gazette of the Japanese Utility Model Publication No. 58-8679).

Conventionally, the respective constituent members of the folding container are rotatably connected by a connecting member made of a metal material or the like.

[0004]

However, in the conventional folding container described above, since the respective members are connected by the connecting member made of a metal material or the like, the folding container should be used as a recycling resource after its useful life. In such a case, there arises a disadvantage that each connecting portion must be disassembled and sorted by different materials. Further, since the connecting member is used, the number of parts is increased, the cost is increased, and the number of assembling steps is increased.

Further, in the conventional folding container described above, articles are taken in and out from the opening of the upper peripheral frame, and
Since the bottom plates of other containers are stacked on this upper peripheral frame so that they can be stacked in multiple stages, after placing articles in this container and stacking them in multiple stages, the containers in the second or lower stage from the top When it is desired to take out the articles inside, the disadvantages such as the need to remove the containers stacked on top of them will occur.

Further, the conventional folding container described above is
Since it is opened upward, dust and dirt easily enter through this opening. Therefore, in such a case, it is proposed to separately provide a lid on the upper peripheral frame portion,
The lid has to be attached and detached each time, which causes inconvenience.

The present invention has been made in view of the above circumstances, and can be easily used as a recycling resource, can be easily assembled at a low cost, and the contents can be taken out in a stacked state, and dust or dirt can be entered. It is an object of the present invention to provide a folding container made of synthetic resin which is easy to use and can completely store the contents so that it does not exist.

[0008]

A folding container made of synthetic resin according to the present invention for solving the above problems is a top plate, a bottom plate and a foldable member, and is rotatable with respect to the top plate and the bottom plate. A pair of long side plates composed of an upper long side plate and a lower long side plate that are movably connected to each other, and a pair of tilts that are rotatably connected to the top plate and that are engaged with the bottom plate and the long side plate. A plate, a shaft portion and a bearing portion integrally formed of the same material as these members are formed in a connecting portion between the respective members, and the shaft portion and the bearing portion can be connected to each other, and At least one of the plates is adapted to rotate outwardly and to be superposed on the upper surface of the top plate.The tilt plate is engaged with the bottom plate and the long side plate from the outside in an assembled state in which the long side plate is extended. Match This invention was made as.

[0009]

According to the present invention, the folding container made of the same synthetic resin material as a whole can be constructed by connecting the integrally formed shaft portion and the bearing portion to the connecting portion between the respective members.

[0010] Further, the swing plate which is adapted to rotate outward can be opened and closed to store the article in the container, and after storing the article in this way, the swing plate is used as the bottom plate and the long side plate. By engaging, the article can be completely stored.

Further, since the swing plate is adapted to engage with the bottom plate and the long side plate from the outside, it is possible to take out the articles stored in the container without any gap between the upper and lower sides and the left and right sides by simply sliding them. it can.

Further, the bottom plate and the long side plate are released from the engagement with the tilting plate, the long side plate is bent, and the tilting plate is superposed on the upper surface of the top plate so that it can be folded.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show the outline of the overall structure of a synthetic resin folding container (hereinafter simply referred to as a container) 1 in each state, and FIGS. 4 to 7 show the connection state of each member in the container 1. Is shown.

That is, the container 1 is provided with a top plate 2, a bottom plate 3, a long side plate 4 and a tilt plate 5, and is integrally molded at the connecting portion between the respective members with the same material as those members. The shaft portion 6 and the bearing portion 7 are formed,
The shaft portion 6 and the bearing portion 7 are connectable to each other, and the swing plate 5 is adapted to rotate outward.

The top plate 2 is formed in a rectangular plate shape. On the long side of the top plate 2, a rail portion 21 is provided so as to project along the long side direction. The rail portion 21 is provided with notches 22 at two locations facing the inner side, and the notches 22 have engagement pieces 5 of a later-described tilt plate 5.
1 can be stored. Further, on the back side of the rail portion 21, bearing portions 7 each having an axial hole along the long side direction are integrally formed at a plurality of positions with appropriate intervals. On the other hand, on the short side of the top plate 2, bearing portions 7 each having a shaft hole along the direction of the short side are integrally formed at a plurality of positions with appropriate intervals.

The bottom plate 3 has substantially the same outer peripheral dimensions as the top plate 2,
It is made in shape. A long side rising wall 31 is formed on the long side of the bottom plate 3 along the long side direction. Further, inside the long side rising wall 31 of the bottom plate, bearing portions 7 having shaft holes along the long side direction are integrally formed at a plurality of positions with appropriate intervals. On the other hand, this bottom plate 3
On the short side of, the handle 32 for holding the hand and the engaging groove 33 with which the engaging piece 51 of the swing plate 5 engages are provided.

In the long side plate 4, the lower side of the upper long side plate 41 and the upper side of the lower long side plate 42 are rotatably connected. That is, as shown in FIG. 4, on the lower side of the upper long side plate 41, the cantilevered shaft portions 6 having a shaft core 61 along the lower side direction are evenly spaced and integrally molded with the upper long side plate 41. ing. Further, the bearing portions 7 having axial holes along the direction of the upper side are formed on the upper side of the lower long side plate 42 at equal intervals and are integrally formed with the lower long side plate 42. Then, by inserting the shaft portion 6 formed on the upper long side plate 41 into the bearing portion 7 formed on the lower long side plate 42, the upper long side plate 41 and the lower long side plate 42 are rotatable with respect to each other. There is.

Further, as shown in FIG. 5, on the lower side of the long side plate 4, that is, the lower side of the lower long side plate 42, cantilevered shaft portions 6 having a shaft core 61 along the lower side direction are evenly spaced. And is integrally formed with the lower long side plate 42. Then, the cantilevered shaft portion 6 is connected to the long side rising wall 31 of the bottom plate 3.
The bottom plate 2 and the long side plate 4 are connected to each other by inserting the cantilevered shaft portion 6 into the bearing portion 7 formed inside and bending the cantilevered shaft portion 6 to engage with the bearing portion 7. At this time, since the cantilever shaft 6 is engaged by being pushed in, the shaft core 61 provided in the cantilever shaft 6 is obliquely cut so as to be easily pushed.

Further, as shown in FIG. 6, on the upper side of the long side plate 4, that is, the upper side of the upper long side plate 41, cantilevered shaft portions 6 having a shaft core 61 along the upper side direction are evenly spaced. And is integrally molded with the upper long side plate 41. Then, like the lower long side plate 42, the cantilevered shaft portion 6
Is pushed into the bearing portion 7 formed on the rail portion 21 of the top plate 2, and the cantilevered shaft portion 6 is bent and engaged with the bearing portion 7, whereby the top plate 2 and the long side plate 4 are connected. It

As a result, the long side plate 4 can be bent so that the outer surface of the upper long side plate 41 and the outer surface of the lower long side plate 42 face each other. Further, in this bent state, the long side plate 4 is housed in the space formed between the top plate 2 and the bottom plate 3. Further, in this bent state, the outer surface of the upper long side plate 41 is brought into contact with the back side of the rail portion 21 of the top plate 2 in a state where the upper long side plate 41 and the lower long side plate 42 are extended so as to be flush with each other. The outer surface of the lower long side plate 42 is brought into contact with the inner side of the long side rising wall 31 of the bottom plate 3.

Further, the upper long side plate 4 constituting the long side plate 4
Engagement holes 43 are formed on both sides of 1 and the lower long side plate 42 so as to engage with the plate 5 in an assembled state.

The swing plate 5 is formed in a rectangular shape.
As shown in FIG. 7, on the upper side of the tilt plate 5, cantilevered shaft portions 6 having a shaft core 61 along the upper side direction are formed at equal intervals and integrally formed with the tilt plate 5.
Then, similar to the connection between the upper long side plate 41 and the top plate 2,
By pushing the cantilevered shaft portion 6 into the bearing portion 7 formed on the short side of the top plate 2 and bending the cantilevered shaft portion 6 to engage with the bearing portion 7, the top plate 2 and the tilt plate 5 are formed. And are connected. The tilt plate 5 passes from the position where the tilt plate 5 is in a vertical state with respect to the top plate 2 arranged in the horizontal direction, passes through the outward trajectory indicated by the arrow A, and is located on the top surface of the top plate 2. 270 ° to the horizontal position where the
It is designed to be able to rotate within the range.

Further, the swing plate 5 is provided with an engagement piece 51 which engages with an engagement hole 43 provided in each of the upper long side plate 41 and the lower long side plate 42 of the long side plate 4. Similarly, an engaging piece 51 for engaging with the engaging groove 33 of the bottom plate 3 is also provided on the bottom side of the swing plate 5. Then, by rotating the swing plate 5 in a vertical state,
The engagement piece 51 is engaged with the engagement hole 43 provided in the long side plate 4 and the engagement groove 33 provided in the bottom plate 3 to maintain this state. Further, by rotating the tilt plate 5 so as to be turned upside down on the top surface of the top plate 2, the engaging piece 51 provided on the tilt plate 5 is housed in the notch 22 provided on the rail portion 21. Has been done.

The container 1 constructed in this way is
Each of the above constituent members is formed of the same synthetic resin material. In this case, since the connecting portion including the shaft portion 6 and the bearing portion 7 is also made of a synthetic resin material, it can be effectively used as a recycled resource after its useful life. Examples of the synthetic resin material include polypropylene, polyethylene, ABS resin and the like. Moreover, as a molding method of each member, integral molding by injection molding is suitable.

Next, a method of using the container 1 will be described.

First, when the folded state shown in FIG. 3 is changed to the assembled state shown in FIG. 1, the space between the top plate 2 and the bottom plate 3 is expanded as shown in FIG.

Then, the upper long side plate 41 and the lower long side plate 42 housed between the top plate 2 and the bottom plate 3 are extended, and the tilt plate 5 overlaid on the top plate 2 is turned into two.
Rotate 70 ° to vertical.

After that, the engagement piece 51 of the swing plate 5 is engaged with the engagement hole 43 of the long side plate 4 and the engagement groove 33 of the bottom plate 3 to complete the assembly.

When storing articles in this container 1,
Disengage one of the swing plates 5 to move the swing plate 5
The article can be inserted by opening the.

On the other hand, contrary to the above, the tilt plate 5 is moved to the arrow A.
Rotate 270 ° in an outward orbit along the direction and turn the top plate 2
It is possible to return the assembled state to the folded state by stacking the sheets on top of each other and turning over the long side plate 4. At this time, the engaging pieces 51 provided on both sides of the swing plate 5
Are stored in the notch 22 provided in the rail portion 21 of the top plate 2.

According to this container 1, articles can be stored by opening the swing plate 5 on the side surface of the container 1 in the assembled state, so that another container 1 or other luggage can be placed on the container 1. Even when loaded
Goods can be taken in and out easily. However, when the plate 5 is opened with the other containers 1 and other luggage loaded on the container 1 in this way, one of the tilt plates 5 is placed so that the container 1 does not collapse due to the load. , The long side plate 4 and the bottom plate 3 must be engaged with each other. Further, in order to secure the load bearing strength when the swing plate 5 is opened as described above, as shown in FIGS. 4 to 6, between the top plate 2 and the upper long side plate 41,
Between the upper long side plate 41 and the lower long side plate 42 and between the lower long side plate 42
An insertion rib 8 and a fitting rib 9 which are fitted to each other in the assembled state may be provided between the bottom plate 3 and the bottom plate 3. In addition, tilt plate 5
When the swing plate 5 is provided with a further engaging force so that the articles inside do not pop out by opening the swing plate 5,
A lock mechanism (not shown) for locking the bottom plate 3 and the long side plate 4 may be provided.

When the same container 1 is loaded on the container 1, the handle 32 of the bottom plate 3 of the upper container 1 is placed on the rail portion 21 of the lower container 1. You can easily unload the product by pulling it toward you while sliding it.

Further, in the case of this container 1, since the articles can be completely stored in the container 1, especially when it is used for transporting medical products or foods, invasion of dust or the like is prevented. Can be hygienic. However, in the case of the container 1 of this embodiment, since the articles are completely stored inside and it is difficult to confirm the articles in the container 1, the long side plate 4 and the tilt plate 5 are made transparent or translucent members. You may make it possible to see through the inside of the container 1.

In this embodiment, the cantilevered shaft portion 6 is bent and pushed into the bearing portion 7 to connect the members. However, as shown in FIG. The shaft portion 6 is inserted along the hole, and the bearing portion 7 is engaged with the locking piece 6
It may be connected so as to be locked at 0.

Further, in this embodiment, the long side plate 4 and the tilt plate 5 are provided with the shaft portions 6, and the top plate 2 and the bottom plate 3 are provided with the bearing portions 7.
Although the shaft portion 6 is provided on the top plate 2 and the bottom plate 3, and the bearing portion 7 may be provided on the long side plate 4 and the tilt plate 5 on the contrary.

Further, in the case of the container 1 of this embodiment, both the swing plates 5 are configured to rotate outward, but only one of the swing plates 5 rotates outward, The other swing plate 5 may be configured to rotate inward like a conventional container.

[0038]

As described above, according to the present invention, since the folding container can be formed by a simple operation such as connecting the shaft portion and the bearing portion integrally formed with each member, it is possible to reduce the number of parts. It is possible to reduce the troublesome assembling process and the assembling cost. Further, since the entire folding container is made of the same synthetic resin material, it is not necessary to sort by different materials and can be easily recycled.

Further, since the tilting plate which can be rotated outwardly can be opened and closed to store the articles in the container, even if the containers holding the articles are stacked in multiple stages, the tilting board is directed outward. By rotating it to, it is possible to easily take out and put in an article of a size that can be stored inside without a gap. Further, since the article can be completely confined in the state where the swing plate is closed, it is possible to prevent dust from entering the container without using a separate lid or the like.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of an entire configuration of a folding container in a completed assembly state.

FIG. 2 is a perspective view showing the outline of the overall configuration of the folding container at an intermediate stage.

FIG. 3 is a perspective view showing an outline of an overall configuration of a folding container in a folding completed state.

FIG. 4 is a partially exploded perspective view showing a connected state of the upper long side plate and the lower long side plate.

FIG. 5 is a partially exploded perspective view showing a connected state of the bottom plate and the lower long side plate.

FIG. 6 is a partially exploded perspective view showing a connected state of the top plate and the upper long side plate.

FIG. 7 is a partially exploded perspective view showing a connected state of the top plate and the tilting plate.

FIG. 8 is a partial cross-sectional view of another embodiment of a shaft portion and a bearing portion before and after a connected state.

[Explanation of symbols]

 1 Folding container 2 Top plate 3 Bottom plate 4 Long side plate 41 Upper long side plate 42 Lower long side plate 5 Flange plate 6 Shaft part 7 Bearing part

Claims (1)

[Claims] 1. A top plate, a bottom plate, a pair of long side plates that are foldable and that are rotatably connected to the top plate and the bottom plate and that include an upper long side plate and a lower long side plate. While being rotatably connected to the top plate,
A bottom plate and a pair of tilting plates adapted to engage with the long side plate, and a shaft portion and a bearing portion integrally formed of the same material as these members are formed at a connecting portion between the members. Part and the bearing part are connectable to each other, and at least one of the swing plates is adapted to rotate outwardly and to be superposed on the upper surface of the top plate. A foldable container made of synthetic resin, which is adapted to be engaged with the bottom plate and the long side plate from the outside in a stretched and assembled state.