JPH11314637A - Stackable container with all releasable faces - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container having a fully openable structure in which the sides of the upper frame at the side provided with side covers are removed, in which deformation is effectively prevented and the side cover can be simply and easily opened or closed and which can be stably stacked. SOLUTION: In this container, the side cover 6 and the side plate 36 of the lower side than an opening are rotatably connected through a link 7, and the link 7 and the lower side plate 36 are rotatably connected by a first shaft 71. The link 7 and the side cover 6 are connected so as to rotatably and drawably upward pull out the side cover 6 by a second shaft 72 passing through a long hole of the side cover 6. Further, an engaging part 81 fixing the movement in both longitudinal and lateral directions and releasing the engagement in the drawn state is provided between the side cover 6 and the side plate of both sides of the opening. Moreover, a fixing structure fixing the horizontal movement in a state that the side cover 6 is closed and in a stacked state is provided at the corner of the upper frame and the bottom plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a full-open container capable of taking in and out of stored articles from a side in a stacked state.

[0002]

2. Description of the Related Art Conventionally, an upper frame, a bottom wall, a pair of opposed side walls whose ends are pivotally attached to the upper frame and the bottom wall and are bendable at the center, and an upper end pivotally pivotally connected to the upper frame. A folding container comprising a pair of second side walls worn thereon can be stacked when articles are stored, and can be reduced in volume when articles are not stored, so that it is widely used in the field of distribution. .

A container in which an opening is provided in a side plate and a side lid (door) for opening and closing the opening is provided in the opening is also already known. For example, Japanese Patent Publication No. 1-56982 discloses a container. A side opening is provided on the side of the container, and a side lid that opens and closes the side opening is rotatably attached to the container, and a lower bearing portion is provided below lower left and right side edges of the side opening of the container. The upper end of the link is attached to the lower bearing by a shaft, the lower bearing of the side cover is attached to the lateral through hole provided at the lower end of the link by the shaft, and the left and right side edges of the side opening are attached. A side lid mounting structure for a container, wherein a through hole is provided at a position corresponding to a horizontal through hole provided below a link portion below a lower bearing portion, and the through hole serves as a second lower bearing portion. Is described.

There is also a great demand for a wider opening provided in the side plate. For this purpose, a fully-open type structure in which the side of the upper frame on the side where the side lid is provided is removed is already known. I have.

[0005]

However, the above-mentioned full-open type container has the advantage that the opening area can be increased, but the upper end of the opening is not connected, so that the size of the box and the area of the opening may vary. However, there is a disadvantage that the upper frame tends to expand outward and deform, and furthermore, in a stacked state, the outer frame further deforms outward and the collapse of the load easily occurs.

In order to prevent this, a structure in which the side of the upper frame on the side where the side lid is provided is detachable, but a troublesome operation of attaching and detaching the side of the frame other than opening and closing the side lid is also known. In addition to the necessity, there is inconvenience that the removed frame side is lost or lost, and the strength of the connection portion of the frame side cannot be said to be sufficient.

[0007] Furthermore, the conventional side lid mounting structure has an advantage that the side lid can be opened at 180 degrees or 90 degrees by changing the axis passing through each through hole. Since the whole protrudes downward by 180 degrees or laterally by 90 degrees, there is still a problem that it is not always easy to take out the contents from the opening. That is, in a state where the side lid is opened 180 degrees downward,
Since the opening of the lower container is closed in the stacked state, it is difficult to remove the contents from the lower box, and when the side cover is opened 90 degrees sideways, the side cover becomes an obstacle A person may be able to take out the contents only with his or her arm extended considerably, or it may be difficult to take out the contents at the back.

In addition, in the conventional opening / closing mechanism using the side lid, a special lock mechanism manufactured separately must be provided between the upper part of the side lid and the upper part of the side wall opening. There is still room for improvement in terms of the expense of manufacturing and installation.

Therefore, an object of the present invention is to provide a container having a fully open structure in which the side of the upper frame on which the side lid is provided is removed, and the deformation due to the internal pressure of the side lid and the expansion to the outside of the container are effectively prevented. An object of the present invention is to provide a container that can be prevented from being stably stacked, and the side lid can be opened and closed easily and easily. Another object of the present invention is to perform an opening operation on a part of the side cover and an opening operation in a state where the entire side cover is folded, and thereby, depending on a type of an article and a filling state, The open state can be selected, and the operation of taking out and storing the contents from the opening can be easily performed even in the stacked state, and the locking operation on the side wall of the side lid is also a special lock manufactured separately. An object of the present invention is to provide a container which can be easily and reliably performed without using a mechanism, and whose opening is reinforced by engagement of a side cover and a side plate, so that a decrease in strength of the opening is suppressed to a low level.

[0010]

According to the present invention, there is provided an upper frame, a bottom plate, and a pair of opposed first and second side plates located between the upper frame and the bottom plate. In a container in which one side is cut out and an opening is provided in the corresponding side plate, and a side cover that opens and closes the opening is rotatably provided in the opening, the side cover and the side plate below the opening are turned via a link. Movably connected, the link and the lower side plate are rotatably connected by a first shaft, and the link and the side cover are turned by a second shaft passing through a long hole of the side cover. The side cover and the side plates on both sides of the opening are engaged with each other so as to lock the movement in the front-rear direction and the left-right direction and disengage in the pulled-out state. With the side lid closed at the corners of the upper frame and the bottom plate and in the horizontal direction in a stacked state. Possible stacking, characterized in that a locking mechanism for locking a whole surface releasable container is provided. In the container of the present invention: 1. The locking mechanism comprises a projection provided at a corner of the upper frame and a grid-like rib provided at a bottom corner of the bottom plate; The side cover is composed of an upper member and a lower member that can be bent through a hinge, and the side cover lower member is rotatably connected to a side plate below the opening via a link, and the link and the lower side plate Is connected rotatably by a first shaft, and the link and the lower side lid member are rotatably coupled to and pulled out from the lower side lid member by a second shaft passing through a long hole of the lower side lid member. 2. 3. The hinge of the side cover is a hinge that can be folded in a valley when viewed from the outside. 4. The elongated hole has an upwardly extending dimension sufficient to release the engagement at the engagement portion between the side cover and the side plate. 5. the link has a drawer dimension sufficient to allow the folded side lid to hang down; 6. A side plate below the opening has a concave portion for receiving the upper end of the folded side lid; The engaging portion comprises an upper opening provided on the side plate on both sides of the opening and a hook-shaped receiving end with an inward end, and a hook-shaped engaging piece provided on both sides of the side lid with an outwardly directed hook-shaped engaging piece. And are preferred. The present invention can be applied to any container, but includes an upper frame, a bottom wall, a pair of opposing side walls whose ends are pivotally attached to the upper frame and the bottom wall and can be bent at the center, and an upper end is formed on the upper frame. The present invention can be suitably applied to a folding container including a pair of second side walls pivotally connected to each other.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention comprises an upper frame, a bottom plate, and a pair of first and second side plates opposed to each other which are located between the upper frame and the bottom plate. And a container provided with an opening in the corresponding side plate, and a side cover for opening and closing the opening provided in the opening so as to be rotatable. (A) The side cover and the side plate below the opening are rotated via a link. Movably connected, the link and the lower side plate are rotatably connected by a first shaft, and the link and the side cover are turned by a second shaft passing through a long hole of the side cover. (B) between the side cover and the side plates on both sides of the opening, locking the movement in the front-rear direction and the left-right direction and releasing the engagement in the pulled-out state. (C) horizontal direction with the side lid closed on the upper frame and the bottom plate and in a stacked state It is characterized in that provided a locking mechanism for locking the motion.

According to the present invention, the configuration (a) allows the entire side cover (door) to be rotatable with respect to the side plate (door frame).
The opening and closing of the side cover is facilitated, and a link is interposed between the two, so that the turning operation of the side cover and the locking and unlocking operations can be smoothly performed in conjunction with the link connecting method described later. Done.

Further, in this configuration, the link is provided rotatably about the first plate with respect to the side plate below the opening, and accordingly, the link is rotated about the first shaft. At the same time, the side lid is provided rotatably with respect to the link by the second axis, and accordingly, the side lid is rotatable about the second axis. Moreover, the side lid is provided with a long hole (a long hole extending vertically in the locked state), and the second shaft is provided so as to pass through the long hole.
The side lid can be pulled out in the direction of the long hole.

Further, as in the configuration (b), the movement between the side cover and the side plates on both sides of the opening is locked in the front-rear direction and the left-right direction, and the engagement is released in the pulled-out state. In the state where the side lid is pulled out upward, the engagement between the side lid and the side plate and the rotation of the side lid are possible, and in the state where one side lid is pulled down, The side lid and the side plate are engaged with each other via the engaging portion, and the opening can be closed.

Moreover, when the opening is closed by the side lid,
These engaging portions prevent the movement in the front-rear direction and the movement in the left-right direction. Even when the frame side of the upper frame corresponding to the opening is lacking, as in the present invention, the opening and its surroundings are prevented. The mechanical strength of the container is prevented from lowering, and the outward deformation due to the internal pressure of the container is also prevented, so that operations such as transporting, moving, and stacking the container can be performed smoothly.

In order to take out articles from the stacked containers or to store the articles therein, it is absolutely necessary to open the side lid. In the present invention, as described in the above configuration (c), a locking mechanism for locking the horizontal movement in the stacked state with the side lid closed is provided at the corners of the upper frame and the bottom plate. The corner of the upper frame of the container with the side lid opened is fixed at the corner of the bottom plate of the container stacked thereon, so that the outward spreading and deformation of this container is effectively prevented.

That is, in the fully open container according to the present invention, the outward expansion and deformation due to the notch on one side of the upper frame is caused by the side cover and the outside of the opening when the side cover is closed. Secondly, when the side lid is open, the corners of the upper frame are locked with the corners of the bottom plate of the container thereabove. (The above configuration (c)) is effectively prevented. In addition, in the present invention, since the side cover is provided rotatably and withdrawable by the configuration (a), the switching between the first state and the second state can be performed smoothly and easily. This has the advantage that the configuration of the container can be made extremely simple.

The locking mechanism according to the present invention preferably comprises a projection provided at a corner of the upper frame and a grid-like rib provided at a bottom corner of the bottom plate. The grid-shaped ribs provided at the bottom corners of the bottom plate reinforce the bottom corners, which engage with the protrusions at the upper frame corners, preventing the upper frame from spreading outward and deforming more effectively. Is done.

The side cover is composed of an upper member and a lower member that can be bent via a hinge, and a lower member of the side cover is rotatably connected to a side plate below the opening via a link. And the lower side plate are rotatably coupled by a first shaft,
It is preferable that the link and the lower side lid member are coupled so that the lower side lid member can be rotated and pulled out by a second shaft passing through a long hole of the lower side lid member. In this case, it is advantageous to provide an engaging portion on each of the side lid upper member and the lower member in order to prevent expansion and deformation. According to the above configuration of the present invention, the side lid can be folded, the opening operation can be performed with the side lid folded, and the opening can be closed with the side lid extended straight. There is also an advantage that various opening states can be selected as described later.

In this embodiment of the present invention, the hinge of the side lid may be a valley-foldable hinge or a mountain-foldable hinge when viewed from the outside of the container. In order to adjust the degree of opening, it is advantageous that the hinge is a valley-foldable hinge. That is, it is also possible to open only the upper member by making the side lid upper member and the lower member valley-folded. In addition, in the folding container, the long side plate is provided so as to be able to valley fold via a hinge. Thus, the entire side plate can be folded while the side cover is engaged with the side plate.

In the present invention, the long hole provided in the side lid lower member is
It should have an upward withdrawal dimension sufficient to release the engaged state of the engaging portion between the side lid and the side plate.

In the container according to the present invention, the upper member and the lower member are provided so as to be foldable via the hinge. Therefore, only the upper member of the side lids is provided depending on the type of the article and the storage state of the article. Can be opened, or the entire side lid can be folded open.

In order to perform the former opening, the side cover is pulled out upward to release the engagement between the upper member and the corresponding side plate.
By maintaining the engagement state between the lower member and the corresponding side plate,
The upper member is pivoted forward about the hinge, and the opening can be made only by the upper member.

When the latter opening is performed, the folded side lid can be made to hang downward,
It can also be in a state of extending substantially horizontally. In any of these cases, since the side lid is folded, there is no hindrance to the operation of taking out and storing items from the opening, and even in the stacked state, it is possible to take out items from the lower container. There is an advantage that it is easily performed.

In the case of a hanging opening, the link preferably has a drawer dimension sufficient to allow the folded side lid to hang. That is, in this hanging state, the link is in a state of being rotated substantially horizontally and forward, but in this state, the upper member of the side cover is stored between the lower member of the side cover and the side plate. It is good to leave space.

In the case of a horizontal type opening, a concave portion for receiving the upper end of the folded side lid upper member is provided in the side plate below the opening, so that the folded side plate is kept substantially horizontal. can do. According to this aspect, in the container in the stacked state, it becomes easy to open and remove the storage items from the container below the container in which the opening is already open.

The engaging portion used in the present invention includes an upper opening provided on the side plate on both sides of the opening and a hook-shaped receiving end having an inward end, and a hook-shaped receiving end provided on both sides of the side lid having an outwardly directed hook. It is desirable to use the locking piece in order to make the state of engagement of both secure and strong while making the structure of the engaging portion the simplest and the least complicated. In other words, by inserting the locking piece of the side cover into the receiver from above, it is securely locked in the front-rear direction and the left and right direction, and it is possible to release the locking by removing the locking piece from the receiver. Becomes

According to the present invention, there is provided an upper frame, a bottom wall, a pair of opposed side walls whose ends are pivotally attached to the upper frame and the bottom wall and can be bent at the center, and an upper end pivotally pivotally connected to the upper frame. It can be applied particularly advantageously to a folding container consisting of a pair of fitted second side walls. As already pointed out, since the side cover is foldable and the upper and lower members of the side cover are engaged with the corresponding side plates, the entire side plate is folded while the side cover is engaged with the side plate. This makes it unnecessary to perform any special operation when folding.

The opening and closing operation of the opening of the container of the present invention is performed as follows. In a state where the opening is closed by the side lid, the second shaft is located below the long hole, but since the side lid can be lifted upward by the size of the long hole, first, Pull out the side cover upward. Thereby, the engagement between the side lid and the side plates on both sides of the opening is released. When the side lid is composed of a foldable upper member and a lower member, by releasing the engagement of only the upper member, the opening can be performed by rotating only the upper member. In addition, by disengaging the upper member and the lower member, the upper member and the lower member of the side cover can be folded via the hinge between the two, and the side cover can be rotated around the first axis. Since it becomes rotatable, it is rotated in front of the worker with the side lid folded. To fix the open side lid, the folded side lid may be hung downward from the link, or the upper edge of the upper member of the side plate may be formed in a concave portion of the side plate, and may be extended substantially horizontally. Done. In this state, articles are taken in and out through the opening of the side plate. When the removal of the article is completed, the folded side plate is rotated in the opposite direction to the above, the side cover upper member and the lower member are straightened, and the side cover or the side cover is pulled out in a state where the side cover is pulled out upward. The upper member and the lower member and the side plates on both sides of the opening are locked by the engaging portions, and the opening is closed by the side lid.

When stacking containers, the opening is closed with the side lid (both are locked via the engaging portions).
This is performed so that the corner of the bottom of the container and the corner of the upper frame of the lower stage overlap.

[0031]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail hereinafter with reference to an embodiment shown in the accompanying drawings. FIG. 1 is a partial cross-sectional front view of an example of the container of the present invention, and FIG. 2 is a partial cross-sectional side view showing a state where a part and all of a side cover of the container of FIG. 1 is closed. FIG. 4 is a top view of the container of FIG. 1, FIG. 4 is a bottom view of the container of FIG. 1, and FIG. 5 is a front view, both side views, a side section, a horizontal section and a bottom view showing a detailed structure of the link. 6 is an explanatory view showing the relationship between the elongated hole of the lower member of the side cover and the second shaft, FIG. 7 is an enlarged horizontal sectional view of the engaging portion, and FIG. It is explanatory drawing which shows fixing with the state of the long hole and link in a side cover, FIG. 9: is a side view which shows the horizontal fixing means in the state of opening of a side cover.

1 to 4, which show an example of a container (folding container) according to the present invention, the container has an upper frame 1, a bottom wall 2, and ends which are pivotally connected to the upper frame and the bottom wall and are centered. It comprises a pair of bendable opposing first side walls (long side plates) 3 and 3 and a pair of second side walls (short side plates) 4 and 4 whose upper ends are pivotally connected to the upper frame.

The upper frame 1 is a quadrilateral frame having a short height, and has a complete cutout 11 on one long side thereof. Further, at the connecting portion between the long side and the short side, there is a corner concave portion 13 formed low via the step portion 12.
A projection 14 is formed on 3. At the center of the short side, a grip portion 15 having a depression formed vertically is provided.

The bottom wall 2 has a flat inner surface 21 and an outer surface composed of a cross-shaped reinforcing rib structure 22. The reinforcing rib structure 22 projects below the outer surface periphery 23, The structure 22 can be stacked by being inserted inside the inner surface 16 of the upper frame 1. In the container of the present invention, a grid-like rib 24 is also formed at the bottom corner of the bottom plate 2 corresponding to the corner recess 13 of the upper frame. The corner projection 14 of the frame 1 is inserted so that the two are locked. In the lower right corner of FIG. 3, the locked state of both is shown.

The long side plate 3 is composed of an upper plate 32 and a lower plate 33 which are connected via a hinge 31 so as to be able to valley fold.
The upper plate 32 is rotatably provided on the upper frame 1 via a shaft 34, and the lower plate 33 is provided rotatably on the bottom plate 2 via a shaft 35 (see FIG. 2). Thus, when the container is folded, the long side plate 3 has the upper frame 1 and the bottom plate 2 in a state in which the upper plate 32 and the lower plate 33 are valley-folded via the spine 31.
It will be appreciated that it will be housed within.

The short side plate 4 is rotatably attached to the upper frame 1 via a shaft 41 at an upper portion thereof (see FIG. 1). A reinforcing rib structure 42 is provided at least around the short side plate 4.
Are formed, and a locking rib 43 is provided at a lower end thereof. On the other hand, the bottom plate 2 is provided with a peripheral wall 26 having a small height on the outer periphery and has a projection 27 for locking the short side plate. In the container assembled in the article storage state, as shown in FIG.
3 and the lower rib 43 engages with the protrusion 27 of the bottom plate, and the short side plate 4 is fixed. Further, at the time of folding, the lower rib 43 of the short side plate 4 rotates over the projection 27, so that the short side plate can be folded.

In the container shown in FIG. 1, an opening 5 is provided in one long side plate 3, and a side lid 6 for opening and closing the opening 5 is rotatably provided in the opening 5. The side cover 6 is formed of an upper member 62 and a lower member 63 that can be bent via a hinge 61,
The side lid lower member 63 is rotatably connected to the side plate 36 below the opening 5 via the link 7. The link 7 and the lower side plate 36 are rotatably connected by a first shaft 71, while the link 7 and the side lid lower member 63 are connected to an elongated hole 64 (see FIGS. 8), the lower side lid member is rotatably and removably connected. Further, the upper member 62 of the side lid and the upper plate 32 on both sides of the opening are provided.
And engagement portions 81, 81 for locking the horizontal movement and disengaging in the pulled-out state are provided between the lower member 63 and the lower plate 33 on both sides of the opening. Between them, there are provided engaging portions 82, 82 which stop the movement in the horizontal direction and are disengaged in the pulled-out state.

The side cover 6 has, of course, a shape and dimensions that fit into the opening 5, and the hinge 61 between the upper member 62 and the lower member 63 is connected to the upper plate 32 and the lower plate of the long side plate. 33 is substantially coaxial with the hinge 31 and can be valley-folded like the long side plate. Thus, the entire side plate can be folded in a state where the side cover 6 is engaged with the long side plate 3.

Below the side lid lower member 63, a vertical rib 65 is provided.
a, 65b and a horizontal rib 66, a pair of concave portions 64 are provided on the left and right sides that open outward and downward, and correspondingly, above the long side plate lower member 36 below the opening portion 5. Is provided with a pair of left and right concave portions 37 which are surrounded by vertical ribs 38a and 38b and open outward and upward. These recesses 64 and 37 are provided with links 7 described below.

In FIG. 5 showing the detailed structure of the link 7, the link 7 has a main body 73 having a rectangular shape as a whole, one side wall 75 provided with axial projections 74a and 74b, and
And the other side wall 77 having pin holes 76a and 76b. Side walls 75, 77 are
It is formed in a semicircular shape centering on the projections 74a, 74b and the pin holes 76a, 76b, so that the link can be easily rotated. The other side wall 7 of the link body
The pins 78a and 78b are inserted into the 7 pin holes 76a and 76b.

In FIG. 6, the vertical ribs 65a (65b) of the lower member 63 and the vertical ribs 38a (38b) of the long side plate lower member 36 are shown in their vertical planes.
Is formed with a long hole 64 extending in the vertical direction. On the other hand, the vertical ribs 38a (38b) of the long side plate lower member 36
Is formed with a pin hole 39 corresponding to the protrusion 74b or the pin hole 76b.

The one projection 74a of the link 7 is inserted into the long hole 64.
And the other protrusion 74 b is inserted into the pin hole 39, and the link body 71 is fitted into the recesses 64 and 37, and then the pin 78 is inserted.
a through the elongated hole 64 through the pin hole 76a,
By passing b through the pin hole 39 through the pin hole 76b, the side lid lower member 63 and the lower plate 33 are rotatably connected via a link. In this specific example, the protrusion 74
b and the pin 78b become the first shaft 71, and the protrusion 74a
And the pin 78a becomes the second shaft 72. Also, the lower plate 33
, The link 7 becomes rotatable about the first shaft 71, and the lid lower member 63 becomes rotatable about the second shaft 72 with respect to the link 7. Further, the lower lid member 63 can move in the direction of the long hole 64 with respect to the link 7.

In FIG. 6, (A) is a side cover 6 (lower member 6).
3) shows a state in which the side cover 6 (the lower member 63) is pulled out upward, while FIG. In the state (A), the shaft 72 (the protrusion 74a or the pin 78a) is at the highest position of the long hole 64, and the state (B)
In the figure, the shaft 72 (projection 74a or pin 78a) is at the lowest position of the long hole 64, and the side cover 6 can be pulled out and pulled down by the length of the long hole 64.

An engaging portion 81 between the side lid and the long side plate around the opening.
(82) is a locking piece 83 provided at least one on each side of each of the side lid upper member 32 and the lower member 33, and corresponding to the locking pieces, the upper plate 32 and the lower plate of the long side plate. 33, each having an upper opening receiver 84 provided on each of them.
The locking piece 83 is provided so as to protrude outward from the above-described opening 5, and has a hook 86 whose tip is directed outward as shown in the enlarged horizontal sectional view of FIG. 7. Meanwhile, receiving 84
Has a hook 85 whose tip is inward. By engaging these hooks 85 and 86 with each other, the movement in the front-back direction and the movement in the left-right direction are restricted. In order to engage the side cover and the long side plate around the opening with the engaging portion 81 (82), the lower part of the locking piece 83 and the upper part of the receiver 84 are open. Through the locking piece 83
The hook 86 may be inserted into the receiver 84 as shown in FIG.

In the fully open type container according to the present invention, all of the outward pressure and the stress in the vertical direction of the container from the inner surface side of the container are all equal to the vertically extended side plate upper plate 32.
And the lower plate 33 and the side cover upper member 62 provided in the opening
And the lower member 63. For this purpose, it is desirable to provide locking and fixing means in a vertically elongated state between the side plate upper plate 32 and the lower plate 33 and between the side cover upper member 62 and the lower member 63,
It is preferable to provide a similar locking means between the side lid lower member 63 and the long side plate lower plate 63.

For this purpose, as shown in FIG. 2, an angle portion 91 extending below the hinge is provided on the inner side and below the side plate upper plate 32, and the one side plate lower plate 3 is provided.
A concave portion 92 is provided on the inner surface side and upper portion of
And the concave portion 92 are locked so that the vertically elongated state is stably maintained. Similarly, an angle portion 91 extending below the hinge is provided on the inner surface side and lower side of the side lid upper member 62, and a concave portion 92 is provided on the inner surface side and upper portion of the one side plate lower plate 33, and the angle portion 91 and the concave portion 92 are provided. Are locked so that the vertically elongated state is stably maintained.

As shown in FIG. 8, a projection 68 extending downward is provided on the inner surface of the lower horizontal rib 67 of the lower side cover member 63, while the lower side plate lower than the opening 5 is provided. A concave portion 94 is formed at an inner root portion of the upper horizontal rib 93 of 33.

FIG. 8 illustrates the operation of the long hole and the link in the container of this specific example. FIG. 8A shows a state in which the side cover 6 (lower member 63) is pulled out upward. (B) shows a state where the side cover 6 (lower member 63) is pulled down, and (C) shows a state where the side cover (lower member 63) is rotated by 180 ° (dotted line). )
It shows.

When the opening is closed (B), the shaft 7
2 is located at the highest position of the long hole 64, the projection 68 of the lower side lid member 63 is accommodated in the concave portion 94 of the lower side plate lower plate 33, and the lower horizontal rib 67 of the lower side lid member 63 and the lower side lower plate Board 3
3 and the upper horizontal rib 93 is engaged, so that the lower side lid member 63 and the long side plate lower plate 33 are also stably maintained in the vertical state.

On the other hand, in the state (A) in which the side cover 6 (lower member 63) is pulled up, the shaft 72 is at the lowest position of the long hole 64, and the side cover 6 is only the size of the long hole 64. It is in a state of being pulled out upward. In this state, the protruding portion 68 of the lower side lid member 63 is pulled upward from the concave portion 94 of the long side lower plate 33, and the lower horizontal rib 67 of the lower side lid member 63.
The upper horizontal rib 93 of the long lower plate 33 is separated from the upper horizontal rib 93, so that the lower side cover member 63 is rotatable.

FIG. 8C shows a state in which the side cover 6 (lower member 63) has been turned about 180 degrees, and the link 7
Is rotated substantially horizontally. It should also be understood that, as shown in FIG. 8 (C), the side lid can be hung without being folded.

As shown in FIG. 8 and FIG.
A recess 39 ′ for receiving the upper end of the upper member 62 of the folded side lid 6 is formed below the opening 5 of
As shown in FIG. 9, the front end 69 of the folded side lid upper member 62 is engaged with the concave portion 39 'of the long side plate lower plate, and the opened side lid is stably maintained in the horizontal state in the folded state. You.

In the container of this embodiment, the closed state shown by the leftmost section in FIG.
As shown by the dotted lines in FIGS. 9 and 8C, various opening states can be selected.

Open state (A): As shown by the two-dot chain line in FIG.
It is folded at 0 ° (180 ° counterclockwise in FIG. 2), and about half of the opening 5 is opened. In this case, the side cover 6 is pulled out upward to release the engagement state of the side cover upper member 62 and the corresponding side plate 32 at the engagement portion 81, while the engagement portion 82 of the lower member 63 and the corresponding side plate 33 is released. By maintaining the engaged state, the upper member 62 is pivoted forward around the hinge 61, and the opening can be made only by the upper member 62.

Open state (b): As shown in FIG. 9, the front end 69 of the folded side lid upper member 62 is engaged with the concave portion 39 'of the long side plate lower plate, and the opened side lid is folded. In the state, it is stably maintained in the horizontal state. In this case, first, the engagement state of the upper lid member 62 and the corresponding side plate 32 at the engagement portion 81 and the engagement state of the lower side lid member 63 and the corresponding side plate 33 at the engagement portion 82 are all released. The upper member 62 is rotated 180 ° counterclockwise to overlap the lower member 63, and in this state, the upper member 62 is further rotated counterclockwise 90 ° to perform the above-described engagement.

Opening state (c): As shown by the dotted line in FIG. 8C, the side cover 3 is turned about 180 degrees without being folded and becomes a hanging state, and the entire opening 5 is opened. Will be In this case, when the side lid upper member 62 is in the way,
The upper member 62 is further rotated by 90 degrees, and the side cover upper member 62 and the lower member 63 can be rotated clockwise by 90 ° in a folded state to return to the state (b).

In order to close the opening 5 of the long side plate 3, an operation reverse to the above-mentioned opening operation may be performed. That is, the side cover 6 is rotated clockwise and pulled out upward to engage the engaging portion 81 between the upper side cover member 62 and the corresponding side plate 32 and the engagement between the lower side cover member 63 and the corresponding side plate 33. The engagement at the joint 82 may be performed.

For the container, a thermoplastic synthetic resin used for a normal container is mainly used, and the container is usually manufactured by injection molding. As resin,
Usually, polyethylene, polypropylene, ethylene-α-olefin copolymer and other polyolefins are mainly used, but other known plastics are also used.

[0059]

As described above, according to the present invention, in a container having a fully open structure in which the side of the upper frame on which the side cover is provided is removed, the side plate and the side cover for opening and closing the opening of the side plate are provided. Between the upper frame and the bottom plate, and a locking mechanism for locking the horizontal movement in a stacked state with the side lids closed. By providing, the deformation due to the internal pressure of the side cover and the outward expansion deformation of the container are effectively prevented, and stable stacking is possible, and the side cover can be opened and closed easily and easily. Can be. In addition, it is possible to perform an opening operation on a part of the side cover and an opening operation in a state in which the entire side cover is folded, whereby the type of article and the filling state can be selected according to the filling state, In addition, the operation of taking out and storing the contents from the opening can be easily performed even in the stacked state, and the locking operation on the side wall of the side cover can be performed without using a special locking mechanism manufactured separately. This is easily and reliably performed, and the opening is reinforced by the engagement between the side lid and the side plate. As a result, a decrease in the strength of the opening can be suppressed to a low level.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view of an example of the container of the present invention.

FIG. 2 is a partial cross-sectional side view of the container of FIG.

FIG. 3 is a top and bottom view showing the right half of the container as a top surface and the left half as a bottom surface.

4 is a front sectional view showing the container of FIG. 1 in a folded state.

FIG. 5 is a front view, both side faces, a side cross section, a horizontal cross section, and a bottom view showing a detailed structure of the link.

FIG. 6 is an explanatory view showing a relationship between a long hole of the lower side cover member and a second shaft.

FIG. 7 is a horizontal enlarged sectional view of an engagement portion.

FIG. 8 is an explanatory view showing the vertical locking of the side cover and the side plate together with the state of the long holes and the links in the side cover.

FIG. 9 is a side view showing the horizontal fixing means with the side cover opened.

Claims (9)

[Claims] 1. An upper frame, a bottom plate, and a pair of first and second side plates opposed to each other located between the upper frame and the bottom plate. One side of the upper frame is cut out and an opening is formed in the corresponding side plate. In a container in which a side lid for opening and closing the lid is rotatably provided in the opening, the side lid and a side plate below the opening are rotatably connected via a link, and the link is connected to the link. The lower side plate is rotatably coupled by a first axis, and the link and the side lid are rotatably coupled to the side lid by a second axis passing through a long hole of the side lid so as to be able to be pulled out upward, An engaging portion is provided between the side cover and the side plates on both sides of the opening for locking the movement in the front-rear direction and the left-right direction and disengaged in the pulled-out state, and corner portions of the upper frame and the bottom plate. A locking mechanism that locks the horizontal movement with the side lid closed and stacked Fully openable container that can be stacked. 2. The container according to claim 1, wherein the locking mechanism comprises a projection provided at a corner of the upper frame and a grid-like rib provided at a bottom corner of the bottom plate. 3. The side lid comprises an upper member and a lower member that can be bent via a hinge, and a lower member on the side lid is rotatably connected to a side plate below the opening via a link. The link and the lower side plate are rotatably connected by a first shaft,
The container according to claim 1 or 2, wherein the link and the lower side lid member are coupled so that the lower side lid member can be rotated and pulled out by a second shaft passing through a long hole of the lower side lid member. 4. The container according to claim 1, wherein the hinge of the side cover is a hinge that can be folded in a valley when viewed from the outside. 5. The device according to claim 1, wherein the elongated hole has an upwardly extending dimension sufficient to release the engagement of the engagement portion between the side cover and the side plate. container. 6. The container according to claim 1, wherein the link has a drawer size sufficient to allow the folded side lid to hang down. 7. The container according to claim 1, wherein the side plate below the opening has a concave portion for receiving an upper end portion of the folded side lid. 8. The hook-shaped receiving portion, wherein the engaging portion is an upper opening provided on a side plate on both sides of the opening, and has a hook-shaped receiving end provided on both sides of the side cover. The container according to any one of claims 1 to 7, comprising a piece. 9. The container has an upper frame, a bottom plate, a pair of opposing first side plates whose ends are pivotally connected to the upper frame and the bottom plate and can be bent at the center, and an upper end is rotatable with the upper frame. The container according to any one of claims 1 to 8, wherein the container is a folding container including a pair of second side plates pivotally attached to the container.