Container

Abstract

To provide a container that is easy to assemble and has a sufficient strength.SOLUTION: A container 1 includes: a bottom 2; a first side face part 3 that is folded from both facing sides of the bottom 2 and stands; a second side face part 4; a third side face part 5 that is folded from the other facing sides of the bottom 2 and stands; and a fourth side face part 6. The first side face part 3 and the second side face part 4 each have a first joint part 11 and a second joint part 12 where respective both ends are bonded. The third side face part 5 stands at an obtuse angle against the bottom 2 and is positioned so as to come in contact with the inside of the first joint part 11. The fourth side face part 6 stands at an obtuse angle against the bottom 2 and is positioned so as to come in contact with the inside of the second joint part 12.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to containers for storing vegetables, fruits, etc. [Background technology]

[0002] Conventionally, there are prefabricated containers for storing food and the like (Patent Document 1). Such prefabricated containers are convenient because they can be used immediately after assembly. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2013-241185 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional containers that require assembly have a complex structure that takes a long time to assemble, while simple structures have the problem that assembled parts tend to come loose when food is placed inside. This makes it difficult to create a container that can be assembled in a short amount of time and has sufficient strength.

[0005] SUMMARY OF THE PRESENT DISCLOSURE In view of the above problems, an object of the present invention is to provide a container that is easy to assemble and has sufficient strength. [Means for solving the problem]

[0006] In order to solve the above problems, the container of the present invention comprises a bottom, a first side portion and a second side portion which are folded and stand up from both opposing sides of the bottom, and a third side portion and a fourth side portion which are folded and stand up from both other opposing sides of the bottom, the first side portion and the second side portion each having a first joint portion and a second joint portion where both ends are joined, the third side portion is positioned so as to contact the inside of the first joint portion at an obtuse angle to the bottom, and the fourth side portion is positioned so as to contact the inside of the second joint portion at an obtuse angle to the bottom. Effect of the Invention

[0007] The present invention as described above has the effect of providing a container which can be easily assembled, and which is not likely to come loose or break even when food or the like is stored inside. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a configuration of a container according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a development view of a container according to an embodiment of the present invention. [Diagram 3] FIG. 1 is a side view showing a joint portion of a container according to an embodiment of the present invention. [Figure 4] FIG. 1 is a development view of another example of a container according to an embodiment of the present invention. [Diagram 5] FIG. 1 is an enlarged view of a first key shape of a container according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the container according to the present invention will be specifically described with reference to the drawings. The names of the shapes described in the present embodiment and the dimensions and scales of the container described in the drawings are for illustrative purposes only and are not limited thereto. For convenience of explanation, a three-dimensional coordinate system consisting of an X-axis, a Y-axis, and a Z-axis perpendicular to each other is defined, and the positive direction of the Z-axis is the upward direction and the negative direction is the downward direction. Furthermore, the center side of the container is referred to as the inside, and the side opposite the center side is referred to as the outside.

[0010] 1 to 3 show an example of a container 1 according to this embodiment. The container 1 is a container for storing mainly fruits and vegetables. The stored items are not limited to fruits and vegetables, and may be other fresh foods such as meat and fish, or processed foods. The container 1 may also store industrial products and their parts. The container 1 may be made of paper such as cardboard or thick paper, or may be made of foldable wood, resin, or the like.

[0011] Container 1 has a bottom 2, a first side portion 3, a second side portion 4, a third side portion 5, and a fourth side portion 6, and is formed into a box shape excluding the top by bending a single plate-like member. The dotted lines in Fig. 1 indicate the folding lines, and container 1 is folded along the folding lines so that each side portion stands up from bottom 2.

[0012] The bottom 2 is the bottom surface of the container 1 and has a substantially hexagonal shape. In other words, the bottom 2 has a shape that narrows toward the end in the longitudinal direction. Note that the shape of the bottom 2 is not limited to a hexagon, and may be a rectangle or another polygon.

[0013] The first side portion 3 and the second side portion 4 are each bent and stand up from a pair of opposing sides of the bottom portion 2. The first side portion 3 and the second side portion 4 stand up at an obtuse angle to the bottom portion 2. In other words, the angles formed between the bottom portion 2 and the first side portion 3, and between the bottom portion 2 and the second side portion 4, are each greater than 90 degrees and less than 180 degrees. The first side portion 3 and the second side portion 4 may also stand up at approximately a right angle to the bottom portion 2.

[0014] The first side surface portion 3 has a first key shape 7 at one end in the longitudinal direction, and a second key shape 8 at the other end. The first key shape 7 has a notch in part of one end of the first side surface portion 3 and is approximately L-shaped. The second key shape 8 has a notch in part of the other end of the first side surface portion 3 and is approximately L-shaped. The second key shape 8 has a shape that is approximately point-symmetrical to the first key shape 7. Note that the second key shape 8 does not have to be a shape that is point-symmetrical to the first key shape 7.

[0015] The second side surface portion 4 has a third key shape 9 at one end in the longitudinal direction and a fourth key shape 10 at the other end. The third key shape 9 has a notch at a part of one end of the second side surface portion 4 and is generally L-shaped. The third key shape 9 may be generally the same shape as the first key shape 7, or may be a different shape. The fourth key shape 10 has a notch at a part of the other end of the second side surface portion 4 and is generally L-shaped. The fourth key shape 10 may be generally the same shape as the second key shape 8, or may be a different shape. The fourth key shape 10 has a shape that is generally point-symmetrical to the third key shape 9. Note that the fourth key shape 10 does not have to be point-symmetrical to the third key shape 9.

[0016] The first side portion 3 and the second side portion 4 are each folded twice from the center to one end along two folding lines (dotted lines) shown in Fig. 3. As shown in Fig. 2, the first key shape 7 and the third key shape 9 are joined together by engaging their respective notches. The first key shape 7 and the third key shape 9 form a first joint portion 11.

[0017] The first side portion 3 and the second side portion 4 are each folded twice from the center to the other end along two folding lines (dotted lines) shown in Fig. 3. As shown in Fig. 2, the second key shape 8 and the fourth key shape 10 are joined together by engaging their respective notches. The second key shape 8 and the fourth key shape 10 form a second joint portion 12.

[0018] The third side portion 5 and the fourth side portion 6 are bent from another pair of opposing sides of the bottom portion 2 and stand up. In other words, the third side portion 5 and the fourth side portion 6 are bent from both opposing sides of the bottom portion 2 other than the side from which the first side portion 3 and the second side portion 4 stand up. The third side portion 5 and the fourth side portion 6 are approximately trapezoidal in shape, with their widths (horizontal widths) increasing as they move upward from the bottom portion 2. The third side portion 5 and the fourth side portion 6 may be trapezoidal in shape, which is symmetrical with respect to a line, or may be asymmetrical. Furthermore, the third side portion 5 and the fourth side portion 6 may have a rectangular or polygonal shape.

[0019] The third side portion 5 stands at an obtuse angle with respect to the bottom portion 2. That is, the angle between the bottom portion 2 and the third side portion 5 is greater than 90 degrees and less than 180 degrees. Furthermore, the third side portion 5 is disposed so as to be in contact with the inside of the first joint portion 11. That is, the third side portion 5 is disposed so as to be in contact with the surface of the third key shape 9 of the first side portion 3 and the second side portion 4, which constitute the first joint portion 11, on the same side as the surface of the bottom portion 2 that accommodates the contents.

[0020] The fourth side surface portion 6 stands at an obtuse angle with respect to the bottom portion 2. That is, the angle between the bottom portion 2 and the fourth side surface portion 6 is greater than 90 degrees and less than 180 degrees. Furthermore, the fourth side surface portion 6 is disposed so as to be in contact with the inside of the second joint portion 12. That is, the fourth side surface portion 6 is disposed so as to be in contact with the surfaces of the second key shape 8 of the first side surface portion 3 and the fourth key shape 10 of the second side surface portion 4, which constitute the second joint portion 12, on the same side as the surface of the bottom portion 2 that accommodates the contents.

[0021] As described above, the container 1 described in this embodiment includes a bottom 2, a first side portion 3 and a second side portion 4 that are folded and raised from both opposing sides of the bottom 2, and a third side portion 5 and a fourth side portion 6 that are folded and raised from the other opposing sides of the bottom 2, and the first side portion 3 and the second side portion 4 each have a first joint portion 11 and a second joint portion 12 where both ends are joined, and the third side portion 5 stands at an obtuse angle with respect to the bottom 2 and is disposed so as to contact the inside of the first joint portion 11, and the fourth side portion 6 stands at an obtuse angle with respect to the bottom 2 and is disposed so as to contact the inside of the second joint portion 12. As a result, the container 1 can be easily assembled by simply bending and joining one plate-like member, and the third side portion 5 and the fourth side portion 6 are in contact with each joint, so that the joints, which are the assembly parts, are unlikely to come off, and the container 1 is unlikely to break. Furthermore, because the third side portion 5 and the fourth side portion 6 rise at an obtuse angle to the bottom portion 2, when an item is placed in contact with the third side portion 5 and the fourth side portion 6, gravity presses the third side portion 5 and the fourth side portion 6 outward, fixing the joined state of the joint, making it even more difficult for the joint to come loose. Container 1 is suitable for storing fruit such as peaches and apples, in which the side portions are in contact with each other.

[0022] In addition to the above, in the container 1 described in this embodiment, the first side surface portion 3 and the second side surface portion 4 each have a first key shape 7, a second key shape 8, a third key shape 9, and a fourth key shape 10 at both ends, and the first joint portion 11 and the second joint portion 12 are joined by the first key shape 7 engaging with the third key shape 9, and the second key shape 8 engaging with the fourth key shape 10. This allows the container 1 to be easily assembled by simply hooking the key shapes together.

[0023] In addition to the above, in the container 1 described in this embodiment, the third side portion 5 and the fourth side portion 6 have a shape in which their width (horizontal width) increases as they move upward from the bottom portion 2. This allows the third side portion 5 and the fourth side portion 6 to have a larger contact area with the first joint portion 11 and the second joint portion 12 when the container 1 has a dish-shaped shape in which the width increases as it moves upward. Therefore, when the contents come into contact with the inner surfaces of the third side portion 5 and the fourth side portion 6, the third side portion 5 and the fourth side portion 6 can press each joint with an equal pressing force, making it difficult for the joints to come off.

[0024] In addition to the above, in the container 1 described in this embodiment, the first side portion 3 and the second side portion 4 each rise at an obtuse angle relative to the bottom portion 2. This allows the container 1 to have a dish-like shape, making it easier for the first side portion 3 and the second side portion 4 to come into contact with the contents. When the contents come into contact with the first side portion 3 and the second side portion 4, a force is applied at the first joint portion 11 to pull the first key shape 7 and the third key shape 9 in a direction away from each other, making it more difficult for the engagement to come off. Also, a force is applied at the second joint portion 12 to pull the second key shape 8 and the fourth key shape 10 in a direction away from each other, making it more difficult for the engagement to come off.

[0025] In addition to the above, in the container 1 described in this embodiment, the bottom 2 has a shape that narrows toward the third side surface portion 5 and the fourth side surface portion 6, and the first side surface portion 3 and the second side surface portion 4 are each folded twice from the center to the end portion to be joined. This makes it possible to increase the area of ​​contact between the first side surface portion 3 and the second side surface portion 4 and the contents, and the force with which the key shapes are pulled at each joint increases, making the joints less likely to come loose.

[0026] 4 shows a container 101 which is another example of this embodiment. The container 101 differs from the container 1 in the shapes of the first key shape 70, the second key shape 80, the third key shape 90, and the fourth key shape 100. In the container 101, the first key shape 70 and the third key shape 90 form a first joint portion 110, and the second key shape 80 and the fourth key shape 100 form a second joint portion 120. The shapes of the container 101 other than the first key shape 70, the second key shape 80, the third key shape 90, and the fourth key shape 100 are the same as those of the container 1, so descriptions thereof will be omitted.

[0027] FIG. 5 is an enlarged view of the first key shape 70. The first key shape 70 is composed of a first extension portion 70a, a second extension portion 70b, and a tip portion 70c. The first extension portion 70a has a shape that extends continuously from a part of the end portion of the first side surface portion 3 (the upper part in the drawing). The second extension portion 70b extends continuously from the first extension portion 70a and has a shape that is bent at a substantially right angle in a counterclockwise direction (leftward) about the Z axis with respect to the extension direction of the first extension portion 70a. The tip portion 70c extends continuously from the second extension portion 70b and has a shape that is bent at a substantially right angle in a counterclockwise direction (leftward) about the Z axis with respect to the extension direction of the second extension portion 70b. In other words, the first hook shape 70 has an L-shape with the first extension portion 70a and the second extension portion 70b, and has a tip portion 70c extending from the second extension portion 70b. It can also be said that the first hook shape 70 has a U-shape with the first extension portion 70a, the second extension portion 70b, and the tip portion 70c, and forms a recess 70d in the center.

[0028] In FIG. 5, for convenience of explanation, the shapes are divided by dotted lines, but the first extension portion 70a, the second extension portion 70b, and the tip portion 70c are composed of a single member. The shapes of the first extension portion 70a, the second extension portion 70b, and the tip portion 70c may be rectangular or other shapes such as trapezoidal or polygonal. In addition, the angles at which the second extension portion 70b and the tip portion 70c bend from the first extension portion 70a and the second extension portion 70b, respectively, do not have to be right angles, and may be a predetermined angle. Furthermore, the first key shape 70 may be an inverted L-shape.

[0029] The second key shape 80, the third key shape 90, and the fourth key shape 100 have the same shape as the first key shape 70, and each has a first extension portion 80a, 90a, 100a that is the same as the first extension portion 70a, a second extension portion 80b, 90b, 100b that is the same as the second extension portion 70b, and a tip portion 80c, 90c, 100c that is the same as the tip portion 70c, and forms recesses 80d, 90d, 100d that are the same as the recess 70d.

[0030] In the first joint 110, the first key shape 70 and the third key shape 90 are joined in a point-symmetrical positional relationship. At this time, one side of the second extension 70b of the first key shape 70 (the bottom side of the recess 70d) and one side of the second extension 90b of the third key shape 90 (the bottom side of the recess 90d) come into contact with each other, and the tip 70c of the first key shape 70 and the tip 90c of the third key shape 90 function as a stopper, so that the joint is unlikely to come off. When an object is placed in contact with the first side surface portion 3 and the second side surface portion 4 of the container 101, a force is applied in a direction in which the first side surface portion 3 and the second side surface portion 4 open outward due to the object being pushed by the object, but even in such a case, a force acts in a direction in which the first key shape 70 and the third key shape 90 come into contact with each other, so that the joint of the first joint 110 is unlikely to come off.

[0031] Similarly to the first joint portion 110, the second joint portion 120 is joined by the second key shape 80 and the fourth key shape 100 meshing with each other. Therefore, since the first joint portion 110 and the second joint portion 120 of the container 101 are firmly joined, the third side portion 5 and the fourth side portion 6 do not need to rise at an obtuse angle with respect to the bottom portion 2 and contact the first joint portion 110 and the second joint portion 120, respectively.

[0032] As described above, the container 101 described in this embodiment includes a bottom portion 2, a first side portion 3 and a second side portion 4 that are folded and raised from both opposing sides of the bottom portion 2 and have a first joint portion 110 where one end of each of the first side portion 3 and a second joint portion 120 where the other end of each of the second side portion 3 and the third side portion 5 and the fourth side portion 6 that are folded and raised from the other opposing sides of the bottom portion 2 and are arranged so as to contact the insides of the first joint portion 110 and the second joint portion 120, respectively. The first joint portion 110 is formed at one end of the first side portion 3. The first key shape 70 and the third key shape 90 formed at one end of the second side surface portion 4 are joined, and the second joint portion 120 joins the second key shape 80 formed at the other end of the first side surface portion 3 and the fourth key shape 100 formed at the other end of the second side surface portion 4, and the first key shape to the fourth key shape 70 to 100 respectively have first extension portions 70a to 100a, second extension portions 70b to 100b that bend and extend from the first extension portions 70a to 100a, and tip portions 70c to 100c that bend and extend from the second extension portions 70b to 100b. As a result, the first key shape 70 and the third key shape 90 mesh with each other, and the second key shape 80 and the fourth key shape 100 mesh with each other, making the container 101 less likely to break and maintaining its shape firmly.

[0033] Although the embodiment of the present invention has been described above, the present invention is not limited to the illustrated embodiment, and can include various aspects included in the invention described in the claims. [Explanation of symbols]

[0034] 1, 101 container 2 bottom 3 First side part 4 Second side part 5 Third side part 6 Fourth side part 7, 70 1st key shape 8, 80 2nd key shape 9, 90 3rd key shape 10, 100 4th key shape 11, 110 1st joint 12, 120 2nd joint

Claims

[Claim 1] The bottom and a first side portion and a second side portion that are bent and raised from both opposing sides of the bottom portion, and have a first joint portion where one end of each side portion is joined and a second joint portion where the other end of each side portion is joined; a third side portion and a fourth side portion which are bent and raised from the other opposing sides of the bottom portion and are arranged so as to contact the insides of the first joint portion and the second joint portion, respectively; The first joint portion is formed by joining a first hook shape formed at one end of the first side surface portion and a third hook shape formed at one end of the second side surface portion, The second joint portion is formed by joining a second hook shape formed on the other end of the first side surface portion and a fourth hook shape formed on the other end of the second side surface portion, The first to fourth key shapes each have a first extension portion extending from a portion of the one end or the other end, a second extension portion extending and bending from the first extension portion, and a tip portion extending and bending from the second extension portion, wherein the first extension portion, the second extension portion, and the tip portion form a U-shape.

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