JP2004090942A - Folding container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding container the whole of which can be compactly folded while securing a storage space with a large capacity. <P>SOLUTION: The folding container includes a pair of first side plates 2 which are respectively attached to a pair of side rims of a rectangular base plate 1 so that they can rise and fall, and fall inward not to overlap each other, and a pair of second side plates 3 which are respectively attached to the other pair of side rims of the base plate 1 so that they can rise and fall, and fall over the first side plates 2 which have fallen. A rotary shaft 4 is provided at the lower end of the first side plate 2, and a retaining part 5 for rotatably holding the shaft 4 is provided on the side rim of the base plate 1. The rotary shaft 4 is provided outside the position of the internal surface of the first side plate 2. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a foldable container, and more particularly to a foldable container capable of folding a side plate to be compact.
[0002]
[Prior art]
Each side plate is attached to each side edge of the bottom plate so that it can be turned upside down, these side plates are erected to assemble a box-shaped container, and in this state, various products and parts are stored and transported in the container, and transported 2. Description of the Related Art Foldable containers are known in which a side plate is folded after completion to save space when not stored, such as when returning or storing.
[0003]
This type of folding container is basically composed of a rectangular bottom plate and four side plates attached to each side edge of the bottom plate so as to be able to be turned upside down. FIG. 8 shows an example of a conventional folding container. FIG. 8A is a cross-sectional view of a main part showing a state where a side plate of a conventional folding container is erected, and FIG. 8B is a cross-sectional view of a main part showing a state where the side plate shown in FIG. It is. 8 (a) and 8 (b) show only one side plate 2a.
[0004]
The side plate 2 a is arranged on a side edge of the rectangular bottom plate 1. A rotating shaft 4 is formed at the lower end of the side plate 2a so as to protrude, and a holding portion 5 for rotatably holding the rotating shaft 4 is formed at each side edge of the bottom plate 1. The side plate 2a is connected to the bottom plate 1 by the rotating shaft 4 and the holding portion 5, and falls down inward.
[0005]
The folding container at the time of non-use is constructed by folding a pair of opposing side plates including the side plate 2a shown in FIG. 8B inward and lowering another pair of opposing side plates on the pair of collapsed side plates. Can be folded compactly. In the folding container shown in FIGS. 8A and 8B, each pair of side plates has a height such that the side plates do not overlap with each other when they fall down. When the folding container is used, after the respective side plates are erected, the respective side plates are locked to each other to maintain the erected state of the side plates.
[0006]
Generally, it is preferable that the accommodation space formed inside the box-shaped folded container be as large as possible. In order to respond to such a demand, in the conventional folding container, as shown in FIG. 8A, a step c is provided between the upper surface of the bottom plate 1 and the side edge to lower the position of the upper surface of the bottom plate 1. As a result, the effective inner size of the accommodation space is enlarged.
[0007]
Furthermore, in the case of a folding container, it is required that a large-capacity accommodation space be secured when used, and that the folding container be folded as compactly as possible when not in use. Therefore, in order to make the height of the folded container in the folded state as low as possible, it is necessary to make the height of the folded side plate as low as possible.
[0008]
[Problems to be solved by the invention]
However, in the conventional folding container, as shown in FIG. 8 (b), since the bottom plate 1 is provided with a step c, when the side plate 2a is folded down, the bottom plate 1 and the side plate 2a are located between the bottom plate 1 and the side plate 2a. A gap is formed. For this reason, there is a problem that the height of the side plate 2a when folded down is increased by an amount corresponding to the formation of the gap, and the folding container cannot be compactly folded.
[0009]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a folding container that can be compactly folded as a whole while securing a large-capacity accommodation space.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a pair of first side plates which are attached to a pair of side edges of a rectangular bottom plate so as to be capable of being turned upside down and fall inward so as not to overlap with each other, A foldable container comprising: a pair of second side plates which are attached to other pair of side edges so as to be freely tiltable and fall on the first side plate in a collapsed state, wherein the first side plate is provided. A rotation shaft is provided at a lower end of the bottom plate, and a holding portion for rotatably holding the rotation shaft is provided at a side edge of the bottom plate, and the rotation shaft is located outside an inner surface position of the first side plate. It is characterized by being arranged.
[0011]
As described above, since the rotation axis is located outside the inner surface of the first side plate, it is possible to avoid interference between the rotation axis and the side edge of the bottom plate when the first side plate is tilted, The inner surface of the first side plate can be brought into close contact with the upper surface of the bottom plate. As a result, the height of the first side plate when it falls down can be reduced, and the folding container can be folded compactly.
[0012]
According to another aspect of the present invention, a pair of first side plates which are attached to a pair of side edges of a rectangular bottom plate so as to be capable of falling and fall inward so as not to overlap with each other, and another pair of the bottom plates. A folding container comprising a pair of second side plates which are attached to the side edge portions so as to be capable of being turned upside down and fall on the first side plate in a collapsed state, and an outer surface of the first side plate, A tapered portion is formed which inclines inward from near the upper end to the lower end of the first side plate.
[0013]
According to another aspect of the present invention, a pair of first side plates are attached to a pair of side edge portions of a rectangular bottom plate so as to be capable of being turned upside down and fall inward so as not to overlap with each other. An outer surface of the first side plate, comprising: a pair of second side plates that are respectively attached to a pair of side edge portions so as to be capable of being turned upside down and fall on the first side plate in a fallen state; A step extending along the longitudinal direction is formed, and a portion of the first side plate from the step to the lower end is made thin.
[0014]
Thereby, the height of the first side plate when it falls down can be reduced, and the folding container can be compactly folded.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a folding container according to the first embodiment of the present invention, and only the upper left is shown in a rear view. FIG. 2A is a front view of the folding container shown in FIG. 1, and shows a right half in a cross-sectional view. FIG. 2B is a front view showing a state where each side plate of the folding container shown in FIG. 1 is folded. FIG. 3A is a right side view of the folding container shown in FIG. 1, and shows a left half in a sectional view. FIG. 3B is a right side view showing a state where each side plate of the folding container shown in FIG. 1 is folded.
[0016]
As shown in FIG. 1, the folding container according to the present embodiment includes a substantially square bottom plate 1, a pair of first side plates 2 and a pair of second side plates 3 arranged on each side edge of the bottom plate 1. And A first rotating shaft 4 is provided at a lower end of the first side plate 2, and a first rotating shaft 4 is provided on a side edge of the bottom plate 1 corresponding to the position of the first rotating shaft 4. A first holding portion 5 for rotatably holding the shaft 4 is provided. The first side plate 2 is attached to the bottom plate 1 by the first rotation shaft 4 and the first holding portion 5 so that the first side plate 2 can be turned upside down. As shown in FIG. 3 (a), a card mounting portion 7 is provided on the outer surface of the first side plate 2, and a description and a destination of the items stored in the container are described as necessary. The inserted card can be inserted into the card mounting section 7.
[0017]
As shown in FIGS. 3A and 3B, a pair of side edges of the bottom plate 1 are formed with vertical walls 1a protruding upward, respectively, and the second side plate 3 is formed of a vertical wall 1a. Are arranged at the upper ends of the two. A second rotating shaft 8 is provided at a lower end of the second side plate 3, and a second holding portion 9 for rotatably holding the second rotating shaft 8 is provided at an upper end of the vertical wall 1 a. Is provided. Then, the second side plate 3 is attached to the bottom plate 1 such that the second side plate 3 can be turned upside down by the second rotation shaft 8 and the second holding portion 9.
[0018]
The first side plate 2 and the second side plate 3 are each configured to fall inward, and each of the side plates 2 and 3 has a height such that the side plates 2 and 3 do not overlap each other when falling down. The second rotating shaft 8 is disposed so as to be located above the position of the first rotating shaft 4 by the thickness of the first side plate 2. Therefore, when folding the folding container according to the present embodiment, first, the first side plates 2 can be turned inward, respectively, and then the second side plates 3 can be overlaid on the first side plates 2 to be turned down.
[0019]
When assembling the folding container into a box shape, first, the second side plate 3 is erected, and then the first side plate 2 is erected. In the vicinity of both side edges of the second side plate 3, hooks 11 elastically protruding inward are provided (see FIGS. 1 and 2 (a)). 11. Then, the first side plate 2 and the second side plate 3 are locked to each other by the hook 11, so that the upright state of the first side plate 2 and the second side plate 3 is maintained. When the folding container assembled in a box shape is folded, the hooked state of the first side plate 2 and the second side plate 3 can be released by pressing the hook 11.
[0020]
Here, a state in which the first side plate 2 of the folding container according to the present embodiment is upright or falls down will be described with reference to FIG. FIG. 4A is an enlarged cross-sectional view of a main part showing a state in which the first side plate in the present embodiment stands up, and FIG. 4B is a main part showing a state in which the first side plate in the present embodiment has fallen. It is an expanded sectional view.
[0021]
Generally, in a container, it is demanded that the volume of a storage space formed therein is as large as possible. Therefore, in the folding container according to the present embodiment, as shown in FIG. 4A, a step c is provided between the upper surface of the bottom plate 1 and the side edge portion, and the upper surface position of the bottom plate 1 is lowered to accommodate the container. The effective inside dimensions of the space are enlarged.
[0022]
As described above, the first rotation shaft 4 provided at the lower end of the first side plate 2 is rotatably held by the first holding portion 5 provided at the side edge of the bottom plate 1. . The first rotation shaft 4 is disposed at a position facing outward by d from the inner surface position of the first side plate 2. More specifically, there is a displacement d between the innermost part of the first rotation shaft 4 and the inner surface of the first side plate 2. Here, it is preferable that the deviation d is larger than the step c provided on the bottom plate 1. In addition, on the inner surface near the lower end of the first side plate 2, an inclined portion 6 inclined toward the first rotation shaft 4 is provided. By providing the inclined portion 6, when the first side plate 2 is tilted, interference between the lower end of the first side plate 2 and the side edge of the bottom plate 1 can be reduced.
[0023]
When the first side plate 2 is tilted in such a configuration, as shown in FIG. 4B, the first rotation shaft 4 is higher than the inner surface of the first side plate 2 by the displacement d. Therefore, the first side plate 2 can be tilted without causing the first rotation shaft 4 and the side edge of the bottom plate 1 to interfere with each other. That is, no gap is formed between the inner surface of the first side plate 2 and the upper surface of the bottom plate 1, and the first side plate 2 can be tilted horizontally. Therefore, the height of the folded first side plate 2 can be reduced, and the folding container can be compactly folded. Further, since the thickness of the upper end of the first side plate 2 is the same as that of the conventional side plate, the strength of the opening end of the folding container when assembled in a box shape can be maintained.
[0024]
As shown in FIGS. 1 and 2, a rectangular recess 12 is formed over the entire inside of the upper end of each of the side plates 2 and 3 in the folding container in a state where the side plates 2 and 3 are raised. The depression 12 has a shape that engages with a rectangular projection 13 projecting from the lower surface of the bottom plate 1. When stacking a plurality of folding containers, the protrusion 13 of the upper container is engaged with the recess 12 of the lower container. Thereby, a plurality of containers can be stably stacked in a substantially vertical direction. FIG. 5 is a front view showing a state in which the folding containers according to the present embodiment are vertically stacked.
[0025]
Further, a depression (not shown) having the same shape as the depression 12 described above is also formed on the upper surface of the folding container when the first side plate 2 and the second side plate 3 are folded. Therefore, the folding containers according to the present embodiment can be stacked vertically even in a folded state.
[0026]
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 6A is an enlarged cross-sectional view of a main part showing a state where the first side plate according to the present embodiment stands up, and FIG. 6B is a main part showing a state where the first side plate according to the present embodiment falls down. It is an expanded sectional view. Note that the configuration that is not particularly described is the same as that of the first embodiment, and thus redundant description will be omitted.
[0027]
On the outer surface of the first side plate 2 according to the present embodiment, a tapered portion 14 that is inclined inward from near the upper end to the lower end of the first side plate 2 is formed. In other words, the starting point is a position lower by a predetermined distance from the upper end of the first side plate 2, and the thickness of the first side plate 2 is gradually reduced from the starting position toward the lower end. Further, the inclination angle of the tapered portion 14 is set such that the tapered portion 14 becomes substantially horizontal when the first side plate 2 is folded.
[0028]
A first rotating shaft 4 is provided at a lower end of the first side plate 2, and is rotatably held by a first holding unit 5. Note that the second side plate 3 is also provided with a second rotation shaft 8 and a second holding portion 9 as in the first embodiment (see FIG. 3A). The first rotation shaft 4 in the present embodiment is arranged at a position along the inner surface of the first side plate 2.
[0029]
As shown in FIG. 6B, also in the present embodiment, the height when the first side plate 2 is folded can be reduced similarly to the first embodiment. In addition, the upper surface of the folded first side plate 2 can be made substantially horizontal, so that the second side plate 3 stacked thereon can also be horizontally folded. Therefore, it is possible to compactly fold the entire foldable container while keeping the capacity of the accommodation space large. In addition, since the thickness of the upper end of the first side plate 2 is ensured, the strength of the opening end of the folding container when assembled in a box shape is ensured.
[0030]
Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 7A is an enlarged cross-sectional view of a main part showing a state where the first side plate according to the present embodiment is upright, and FIG. 7B is a main part showing a state where the first side plate according to the present embodiment is folded down. It is an expanded sectional view. Note that the configuration that is not particularly described is the same as that of the first embodiment, and thus redundant description will be omitted.
[0031]
As shown in FIG. 7A, a step 15 is formed on the outer surface of the first side plate 2 along the longitudinal direction. That is, a step is provided on the outer surface of the first side plate 2 with the step 15 as a boundary, and the portion of the first side plate 2 from the step 15 to the lower end is thin.
[0032]
A first rotating shaft 4 is provided at a lower end of the first side plate 2, and is rotatably held by a first holding unit 5. Note that the second side plate 3 is also provided with a second rotation shaft 8 and a second holding portion 9 as in the first embodiment (see FIG. 3A). The first rotation shaft 4 in the present embodiment is arranged at a position along the inner surface of the first side plate 2.
[0033]
As shown in FIG. 7B, in the present embodiment, the upper surface position of the first side plate 2 when folded can be lowered, as in the first and second embodiments. Therefore, it is possible to compactly fold the folding container while keeping the capacity of the accommodation space large. Further, since the thickness of the upper end of the first side plate 2 is ensured, the strength of the open end of the folding container when assembled in a box shape is ensured.
[0034]
【The invention's effect】
As described above, according to the present invention, even when the upper surface position of the bottom plate is lowered, the height of the first side plate when folded can be reduced, so that the capacity of the accommodation space is reduced. The whole folding container can be folded compactly while keeping it large.
[Brief description of the drawings]
FIG. 1 is a plan view of a folding container according to a first embodiment of the present invention, in which only the upper left is shown in a rear view.
FIG. 2 (a) is a front view of the folding container shown in FIG. 1, showing a right half in a sectional view. FIG. 2B is a front view showing a state where each side plate of the folding container shown in FIG. 1 is folded.
FIG. 3 (a) is a right side view of the folding container shown in FIG. 1, and shows a left half in a sectional view. FIG. 3B is a right side view showing a state where each side plate of the folding container shown in FIG. 1 is folded.
FIG. 4 (a) is an enlarged sectional view of a main part showing a state in which a first side plate according to the first embodiment of the present invention is upright, and FIG. 4 (b) is shown in FIG. 4 (a). It is a principal part expanded sectional view which shows the state which fell down the side plate.
FIG. 5 is a front view showing a state in which the folding containers according to the first embodiment of the present invention are vertically stacked.
FIG. 6 (a) is an enlarged sectional view of a main part showing a state where a first side plate according to a second embodiment of the present invention is upright, and FIG. 6 (b) is shown in FIG. 6 (a). It is a principal part expanded sectional view which shows the state which fell down the side plate.
FIG. 7A is an enlarged sectional view of a main part showing a state in which a first side plate according to a third embodiment of the present invention is upright, and FIG. 7B is a view showing FIG. 7A. It is a principal part expanded sectional view which shows the state which fell down the 1st side plate.
FIG. 8 (a) is a sectional view of a main part showing a state where a side plate of a conventional folding container is erected, and FIG. 8 (b) shows a state where the side plate shown in FIG. 8 (a) is folded down. It is principal part sectional drawing.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bottom plate 2 1st side plate 3 2nd side plate 4 1st rotation axis 5 1st holding part 6 Inclined part 7 Card mounting part 8 2nd rotation axis 9 2nd holding part 11 Hook 12 Depressed part 13 Projection part 14 Taper part 15 steps

Claims (3)

A pair of first side plates which are attached to a pair of side edges of a rectangular bottom plate so as to be freely tilted and fall inward so as not to overlap with each other, and which are respectively tiltable to another pair of side edges of the bottom plate. And a pair of second side plates that are attached to the first side plate and fall down on the first side plate in a collapsed state,
A rotation shaft is provided at a lower end of the first side plate, and a holding portion for rotatably holding the rotation shaft is provided at a side edge of the bottom plate, and the rotation shaft is provided on the first side plate. A foldable container, wherein the foldable container is disposed outside the inner surface position. A pair of first side plates which are attached to a pair of side edges of a rectangular bottom plate so as to be freely tilted and fall inward so as not to overlap with each other, and which are respectively tiltable to another pair of side edges of the bottom plate. And a pair of second side plates that are attached to the first side plate and fall down on the first side plate in a collapsed state,
A folding container, wherein a tapered portion is formed on an outer surface of the first side plate so as to be inclined inward from a vicinity of an upper end of the first side plate toward a lower end. A pair of first side plates which are attached to a pair of side edges of a rectangular bottom plate so as to be freely tilted and fall inward so as not to overlap with each other, and which are respectively tiltable to another pair of side edges of the bottom plate. And a pair of second side plates that are attached to the first side plate and fall down on the first side plate in a collapsed state,
A folding container, wherein a step along the longitudinal direction is formed on an outer surface of the first side plate, and a portion of the first side plate from the step to a lower end is made thin.

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