JP3781278B2 - Plastic transport container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plastic transport container used for storing and transporting luggage, and more specifically, a plastic transport container that can be fitted to each other to reduce the volume when empty transport containers themselves are stacked. About.
[0002]
[Prior art]
Plastic transport containers are used as transport containers for can containers for soft drinks, juices, beers and the like. These transport containers are configured to have a small volume when empty, for example, assembling containers that are folded into side walls before use and assembled into a box-shaped container when used. A nesting type transport container is known which is formed by inclining a side wall so that the upper container is rotated 180 degrees horizontally and fitted to the lower container.
[0003]
However, the assembly-type transport container can be folded so as not to be bulky when not in use, and the volume can be reduced, but it takes time to assemble and deploy. Further, in the case of a nesting type container, since it can be usually fitted only up to about 2/3 of the height of the side wall, there is a limit to the reduction in volume.
[0004]
Therefore, there is a container described in Japanese Patent No. 2754468 as a container that reduces the volume when stacked with a relatively simple structure. The container has a bottom surface, a peripheral upper frame element, and two opposing side walls hinged to the frame element and connected to the container bottom surface, the container bottom surface having at least one folding connection portion parallel to the side wall. In order to reduce the height of the container, it is adapted to be foldable by the fold connection part.
[0005]
[Problems to be solved by the invention]
When the height of the peripheral upper frame element of the container described in Japanese Patent No. 2754468 is lower than the height of the can to be stored, the can protrudes from the peripheral upper frame element when the can is stored in the container. Will do. When the height of the frame element is low as described above, if the cans are stored in a stacked state, they are placed on the cans, and there is no fitting portion on the bottom surface of the upper container, so that there is a risk of slipping down. In addition, since a gap corresponding to the height of the side wall is formed between the frame element that does not have the side wall and the bottom surface, there is a possibility that a finger may be caught when the bottom surface is folded.
[0006]
OBJECT OF THE INVENTION
The present invention has been made to solve the above problems, and when not in use, it can be fitted to reduce the volume.On the other hand, even if the articles are stacked while being stored, they can be stacked safely without fear of slipping. In addition, an object of the lowermost container is to provide a plastic transport container capable of holding the bottom in a horizontal state.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a plastic transport container according to the present invention comprises a frame part and two side walls facing the bottom part, and the frame part and the side wall are connected via a hinge, In a container in which one or more hinges parallel to the side wall are provided, and a bottom part is bendable by the two hinges, a flange projecting downward is provided on the peripheral edge of the bottom surface of the bottom part , and provided at a substantially center of the bottom part in parallel with the side wall. A support rib having a height substantially the same as that of the flange is provided on the bottom lower surface with the hinge interposed therebetween .
Both the the bottom substantially central cut out the bottom of the opposite end portions of the side walls parallel to setting was hinges, the hinge side of the support ribs may be tapered surfaces.
Further, the support rib is provided with a through hole sandwiching a hinge provided in parallel with the side wall at a substantially central part of the bottom, and provided at the periphery of the through hole so as to face the support rib except for the hinge side. It is preferable to provide a configuration in which the hinge side is a tapered surface and a stopper bulging upward from the upper surface of the bottom so as to cover the through hole is provided.
Further, it is possible to provide a notch at the four corners of the bottom part and the substantially central part of the edge on the side wall side, and a stopper bulging upward from the upper surface of the bottom part so as to cover the notch.
The stopper has a substantially triangular shape in a plane, and the stopper provided at the center of the bottom has a substantially rhomboid shape with the opposing stopper, and the hinge side provided at the substantially center of the bottom has a tapered surface. And
Moreover, it is preferable to provide a reinforcing rib having a lower height than the flange on the bottom surface of the bottom.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 4 show an embodiment of the present invention. A container 10 has a frame portion 11 formed into a planar rectangular shape, and a bottom portion that is also formed into a rectangular shape and fits in the frame portion 11. 13 and two opposing side walls 15, 15 connecting the frame portion 11 and the bottom portion 13. The side walls 15 and 15 are notched at the top to form a small window 17 between the side wall 15 and the frame part 11, and are connected to the frame part 11 via a hinge 19 that can be bent. .
[0009]
The hinge 19 is formed as a thin film hinge that can bend the connecting portion between the frame portion 11 and the side wall 15, but it may be any cultivation that can tilt the side wall 15 inward, and its shape and structure are There is no particular limitation. The hinge 19 may be a hinge structure that can be bent at a portion where the side wall 15 is connected to the frame portion 11. Moreover, in the said embodiment, although the small window 17 was formed in the upper part of the side wall 15, it is good also as the side wall 15 which closed the whole, without forming the small window 17. FIG. Thus, when making the whole side wall into the closed side wall, it is preferable to provide a hinge in the whole connection part of a side wall and a frame part.
[0010]
Next, the bottom 13 will be described. The bottom portion 13 is provided with a hinge 20 parallel to the side wall 15 at substantially the center, and is formed to be bendable. As shown in FIG. 6, the hinge 20 is formed as a thin film hinge that can be bent, and the bottom portion 13 can be folded in two via the hinge 20.
[0011]
Further, the four corners of the bottom portion 13 are cut out with corners to facilitate fitting, and the both ends of the hinge 20 are U-shaped or in order to prevent pinching when the bottom portion 13 is folded. A semicircular cutout 21 is provided. Furthermore, substantially triangular through-holes 22 and 22 are formed in the substantially central portion of the bottom portion 13 so as to face each other with the hinge 20 therebetween, and in the substantially central portion of the side edge on the side wall 15 side, The substantially triangular notches 23 and 23 are provided, respectively. The through holes 22 and 22 are provided via hinges 20 and have a generally rhombus shape as a whole (see FIG. 7).
[0012]
Reinforcing ribs 25 are provided on the lower surface of the bottom portion 13 at appropriate intervals in a direction perpendicular to the hinge 20, and a downward flange 27 except for the notch 21 protrudes from the periphery of the bottom portion 13. It is installed. The flange 27 is provided along the peripheral edge of the bottom portion 13, and therefore, the flange 27 projects inwardly along the notch 23 at the notch 23. The flange 27 prevents sliding off by engaging the upper periphery of the can of the lower container when the containers containing the cans are stacked, and the flange 27 has a height that can be reliably engaged with the can. I just need it.
[0013]
As shown in FIG. 7 and FIG. 8, a substantially rib-shaped support rib 29 is provided on two sides of the through holes 22 and 22. The height of the support rib 29 serves as a support for holding the bottom 13 horizontally when the container 10 is grounded, and is preferably formed to be substantially the same as the height of the flange 27. The grounding surface of the support rib 29 has a tapered surface 29a on the hinge 20 side. By forming the tapered surface 29a, the support ribs 29 and 29 do not collide with each other when the bottom portion 13 is bent. Therefore, the bottom portion 13 can be bent while pushing the hinge 20 upward.
[0014]
On the upper surface of the bottom portion 13, stoppers 30 and 31 are provided at the four corners and the side end central portion of the side wall 15, respectively. That is, the stopper 30 has a planar triangular shape and is formed so as to bulge upward at the four corners of the bottom portion 13, and has a triangular recess on the lower surface of the bottom portion 13. Further, as shown in FIG. 9, the stopper 31 has a substantially triangular plane and bulges upward, and is formed so as to cover the notch 23. Therefore, the stopper 31 is formed as a triangular recess from the bottom surface of the bottom portion 13 outside the flange 27.
[0015]
Further, stoppers 33, 33 each having a substantially triangular shape are provided so as to cover the through holes 22, 22 at the center of the bottom portion 13. The stoppers 33 and 33 are formed so as to face each other via the hinge 20 and bulge above the through holes 22 and 22. Therefore, when the stopper 33 is viewed from the lower surface, it is a triangular recess having the through hole 22 as an opening. The upper surface of the stopper 33 may be a horizontal plane as a whole, but in the illustrated embodiment, the hinge 20 side is formed as a tapered surface 33a. Thus, when the containers are stacked by forming the tapered surface 33a, it is possible to prevent the support ribs 29 of the upper container from coming into contact with each other (see FIG. 10).
[0016]
In the above embodiment, the four corners of the bottom portion 13 and the substantially central portion of the side end on the side wall 15 side are cut out, and the flange 27 is formed along the cutout 23. However, the cutout 23 in the four corners and the central portion of the side end is omitted. can do. In this case, the flange 27 may be formed straight along the side edge of the bottom portion 13, and ribs corresponding to the shape of the cutout may be provided at the four corners and the central portion of the side edge. Moreover, it is good also as a stopper by the rib with which the upper surface opened instead of the stopper 30 of the four corners of the bottom part 13, and the stopper 31 of the side edge center part.
[0017]
Moreover, even if it puts in the center part of the bottom part 13, the through-holes 22 and 22 are omissible. When the through holes 22 and 22 are omitted, a stopper with a rib having an open upper surface may be used instead of the stopper 33 bulging in a substantially triangular shape covering the through hole. Further, the bottom surface of the bottom portion 13 may be configured to project only the support rib 29 and the flange 27 at the center of the bottom portion, and the stoppers 30, 31, and 33 may be omitted from the top surface of the bottom portion 13. Moreover, in the said embodiment, although the hinge 20 was provided in the center of the bottom part in parallel with the side wall, the hinge 20 should just be one or more. When a plurality of hinges 20 are provided, the number is set to an odd number such as three or five.
[0018]
Next, a method of using the container 10 having the above configuration will be described. In order to store the can from the state in which the bottom portion 13 is bent from the hinge 20 as shown in FIG. 4, the center portion protruding above the bottom portion 13 may be pushed down to be in a horizontal state. If the can is placed on the bottom, it is held by the frame 11 and can be stored in a stable state. In particular, when a so-called six-can pack, in which six cans are packaged in one pack, is positioned by the stoppers 30, 31, and 33, it can be reliably stored without moving.
[0019]
Further, when the containers containing the cans are stacked, the bottom 13 is held horizontally by the support rib 29 provided at the center of the bottom container that is grounded. Further, the bottom 13 of the upper container is placed on the upper surface of the can stored in the lower container, and the upper part of the can is prevented from slipping by fitting into the flange 27, and can be stacked in a safe state. (See FIG. 11). Further, since the cans accommodated by the stoppers 30, 31, and 33 are fixed without being displaced, the load from above is applied straight to the lower can and the center of gravity is not shifted. Therefore, there is no risk of collapse of the load, and there is no risk of deforming the container or can.
[0020]
In order to stack empty containers, if the lower end of the side wall 15 is pressed inward, the side wall 15 is tilted inward by a hinge 19 between the side wall 15 and the bottom 13 is 2 from the hinge 20 part. The center part is pushed upward by being folded into three. Accordingly, since the side wall 15 falls inward and narrows, the width of the bottom 13 on the side wall 15 side becomes small, so that the lower side from the side wall can be fitted into the frame portion 11 of the lower container (see FIG. 4). ). In this way, the containers can be stacked by fitting them together, and the height of the stacking is only the height of the frame 11. When the containers are stacked, the stopper 33 provided at the center of the bottom portion is fitted in a stable state without the support rib 29 of the upper container coming into contact with the tapered surface 33a on the hinge 20 side. Can be combined.
[0021]
【The invention's effect】
As described above, in the present invention, containers can be stacked up and down by tilting the side wall inward. Moreover, since the flange which protruded below was provided in the peripheral edge of the bottom part, sliding down can be prevented by fitting the upper part of the can accommodated in the lower container with the flange. Further, even when a flange is provided on the periphery of the bottom, the bottom of the container grounded by the support rib provided at the center of the bottom can be kept horizontal.
[Brief description of the drawings]
FIG. 1 is a top perspective view showing a plastic transport container according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the bottom surface.
FIG. 3 is a front view of the same.
FIG. 4 is a side view showing a state in which a bottom portion is bent.
FIG. 5 is an enlarged partial cross-sectional view showing a hinge connecting a frame portion and a side wall.
FIG. 6 is a partially enlarged cross-sectional view showing a hinge at the bottom.
FIG. 7 is a perspective view showing a support rib provided at the center of the bottom.
FIG. 8 is a cross-sectional view showing a stopper and a support rib at the center of the bottom part.
FIG. 9 is a cross-sectional view showing a notch and a stopper provided in the central portion of the edge of the side wall.
FIG. 10 is a sectional view showing a through hole and a stopper at the center of the bottom and a state in which they are stacked.
FIG. 11 is a partial explanatory view showing a stacked state when cans are stored.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Container 11 Frame part 13 Bottom part 15 Side wall 17 Small window 19 Hinge 20 Hinge 21 Notch 22 Through-hole 25 Reinforcement rib 27 Flange 29 Support rib 30,31,33 Stopper

Claims (6)

It consists of two side walls facing the frame part and the bottom part. The frame part and the side wall are connected via a hinge, and the bottom part is provided with one or more hinges parallel to the side wall. In the container that is foldable by the above, a flange that protrudes downward is provided on the periphery of the bottom surface of the bottom portion, and a support rib that is substantially the same height as the flange is provided on the bottom surface of the bottom portion with a hinge provided substantially parallel to the side wall at the center of the bottom portion. A container for transporting plastic, characterized in that it is provided so as to face each other . 2. The plastic transport container according to claim 1, wherein bottoms of both end portions of a hinge provided substantially parallel to the side wall at the center of the bottom are cut out, and the hinge side of the support rib is a tapered surface.   A through hole is provided in the center of the bottom portion with a hinge provided substantially parallel to the side wall at the center of the bottom portion, and a support rib is provided at the periphery of the through hole except for the hinge side, and the hinge of the support rib is provided. The plastic transport container according to claim 1 or 2, wherein a stopper is provided with a tapered surface on the side and further bulging upward from the upper surface of the bottom so as to cover the through hole.   3. The plastic according to claim 1, wherein a notch is provided at the four corners of the bottom portion and a substantially central portion of the edge on the side wall side, and a stopper bulging above the upper surface of the bottom portion is provided so as to cover the notch. Transport container.  The bulged stopper that covers the through hole is formed in a substantially triangular shape on the plane, and the stopper provided at the center of the bottom has a substantially rhombus shape with the opposing stopper, and the hinge side provided at the substantially center of the bottom is a tapered surface. The plastic transport container according to claim 1, wherein the plastic transport container is a plastic container.   The plastic transport container according to any one of claims 1 to 5, wherein a reinforcing rib having a lower height than the flange is provided on the bottom surface of the bottom portion.

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