JP2003112730A - Folding container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a worker for loading or unloading an item stored in a folding container assembled into a box-shape to approach more closely and facilitate the loading or unloading of the item. SOLUTION: This folding container is comprised of an upper frame 1, bottom segment 2, opposing sprung-up side wall 3 and opposing divided side walls 4, 5. The divided side walls are comprised of upper divided side walls 4', 5' and lower divided side walls 4", 5", and one of the divided side walls is provided with an upper divided door 6' and lower divided door 6", The upper part of the upper divided door abutted against the lower divided side wall when the upper divided door and lower divided door are opened is formed with a thin-wall segment 6m.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding container used for storage, transportation or transportation of various articles.

[0002]

2. Description of the Related Art Conventionally, among four side walls arranged between a frame-shaped upper frame and a bottom portion, one of the long side walls facing each other has an upper divided side wall and a lower divided side wall hinged to each other. And the lower end of the upper frame and the upper end of the upper divided side wall and the lower end and bottom of the lower divided side wall are hinged, respectively, and are also referred to as the other opposing side walls. There is known a folding container in which an upper end of a short side wall is hinged to an upper frame and a flip-up side wall is configured to be rotatable upward. In the folding container assembled in a box shape, the flip-up side wall whose upper end is pivotally attached to the upper frame is rotated from a substantially vertical state toward the inside of the folding container to a substantially horizontal state, and then the long side wall is opened. By folding the upper divided side wall and the lower divided side wall constituting the hinge connecting portion, the folding container assembled in a box shape can be folded in a compact state with a low height.

In order to take out the articles stored in the above-mentioned box-shaped folding container or to store the articles in the box-shaped folding container, upper and lower divided side walls are provided. An opening is formed in the long side wall consisting of the lower divided side wall, and the opening is
Similarly, a door member including an upper split door and a lower split door that are vertically divided and hinge-coupled to each other is provided, and the door member is provided between the upper split door and the upper split side wall. There is known a foldable container configured to be engageable with and disengageable from an upper divided side wall by the locked member (for example, Japanese Patent Publication No. 5-25743, Japanese Patent Laid-Open No. 10-119964, etc.). The lock member is composed of a vertically movable locking piece disposed on the upper split door that constitutes the door member, and a claw portion that is formed on the upper split side wall and that engages with the locking piece. The upper split door and the door member are locked by lowering the locking piece arranged on the upper split door and removing the locking piece from the claw portion or the like formed on the upper split side wall. Is configured to release.

[0004]

In order to open the door member, the lock state provided by the lock member disposed between the upper split door and the upper split side wall is released, and the upper split door is placed outside the folding container. The upper split door and the lower split door in the stacked state are folded around the hinge member that hinge-connects the lower split door and the lower split side wall. Pivot outside the container. In addition, a plurality of folding containers assembled in a box shape are stacked vertically, and the worker
While the door members of the stacked folding containers stand in front of the opening formed by opening the door members, the articles stored in the folding containers assembled in the box shape are put in and taken out. , In the conventional folding container, since the upper split door and the lower split door in the stacked state cannot be pivoted largely in the vertical direction,
There is a problem in that the worker cannot get close enough to the folding container, and the workability of loading and unloading articles is poor.

Further, in order to open the door member, the lock state provided by the lock member disposed between the upper divided door and the upper divided side wall is released, and the upper divided door is rotated to the outside of the folding container. , Stacked on the lower split door in the vertical state, and thereafter, the upper split door and the lower split door in the stacked state are placed outside the folding container around the hinge member that hinge-connects the lower split door and the lower split side wall. Although it will be rotated, the lock members and ribs arranged on the upper split door come into contact with the lower split door on which the upper split door is stacked, and the upper split door cannot be completely stacked on the lower split door. There was a problem.

An object of the present invention is to solve the problems of the above-described conventional folding container.

[0007]

In order to achieve the above-mentioned object, the present invention has a top frame, a bottom side facing flip-up side wall and a facing side wall, and the side wall is a top side wall and a bottom side wall. It is composed of divided side walls and
Further, in a folding container in which an upper split door and a lower split door are disposed on one of the split side walls, firstly, when the upper split door and the lower split door are opened, A thin portion is formed on the upper part of the upper split door that abuts. Secondly, the protruding part that protrudes outward from the outer wall surface of the upper split door does not abut the rib formed on the lower split door. As described above, the height of the rib is lowered.

[0008]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

First, the overall structure will be described with reference to FIG. 1, which is a perspective view of a folding container according to the present invention.

The folding container has an upper frame 1
, The bottom portion 2 and the opposite short side portion 1a of the upper frame 1
And has a side wall (hereinafter, this side wall is referred to as a “flip-up side wall”) 3 pivotally supported at its upper end and configured to be rotatable inward of the folding container. Also,
One of the opposing long side portions 1b of the upper frame 1 has a side wall composed of an upper divided side wall 4'and a lower divided side wall 4 "which are vertically divided and hinge-connected (hereinafter, this side wall will be referred to as a divided side wall). 4) is disposed on the other side of the opposing long side portion 1b of the upper frame 1 as well.
Is provided. The upper part of the upper divided side wall 4'5 'and the long side portion 1b of the upper frame 1 are hinged to each other, and the lower divided side wall 4 ", 5" and the long side portion 2a of the bottom part 2 are respectively connected. , Hinged. In addition, the upper divided side wall 5 ′ forming the other divided side wall 5
A window portion is formed on the lower split side wall 5 ″ as described later, and an upper split door 6 ′ and a lower split door 6 ″ hinged to each other are disposed in the window portion. The upper split door 6'is configured to be locked to the upper split side wall 5'by a lock member described later, and the lower portion of the lower split door 6 "is hinged to the lower split side wall 5".

As shown in FIG. 2, the substantially vertical flip-up side wall 3 of the folding container assembled in the box shape shown in FIG. 1 is rotated toward the inside of the folding container as shown in FIG. In a horizontal state, the hinge portion connecting the upper divided side wall 4 ′ and the lower divided side wall 4 ″ forming the one divided short side wall 4 and the other divided side wall 5 are then connected.
The hinge part connecting the upper divided side wall 5'and the lower divided side wall 5 "is moved toward the inside of the folding container to form the upper divided side wall 4 ', 5'and the lower divided side wall 4", 5 ". By stacking and, respectively, the folding container assembled in a box shape can be folded into a compact state with a low height as shown in FIG. 3.

Next, mainly using FIGS. 4 to 11,
The split side wall 5 including the upper split side wall 5 ′ and the lower split side wall 5 ″ having the upper split door 6 ′ and the lower split door 6 ″ that are hinged together will be described in detail.

The upper dividing side wall 5'is formed in an approximately inverted U shape composed of an upper frame 5a and side frames 5b extending downward from both ends of the upper frame 5a, and the lower dividing side wall 5 '. ”
Is formed in a substantially U-shape including a lower frame 5c and side frames 5d extending upward from both ends of the lower frame 5c. The upper frame 5a of the upper divided side wall 5'is hingedly connected to the long side portion 1b of the upper frame 1 by a suitable hinge member, as is well known, and is also connected to the lower frame 5c of the lower divided side wall 5 ". As is well known, the long side portion 2a of the bottom portion 2 is hinge-connected by a suitable hinge member, and the end portion of the side frame 5b of the upper divided side wall 5'and the side frame of the lower divided side wall 5 ". The end of 5d is hinged by a suitable hinge member H1.

The lower part of the upper split door 6'and the upper part of the lower split door 6 "are, for example, suitable hinge members H which will be described later.
2 ', H2 "are hinged, and the lower part of the lower split door 6" is hinged to the lower frame 5c of the lower split side wall 5 "by suitable hinge members H3', H3" which will be described later as an example. Has been done.

The upper split door 6'is provided with a horizontally long substantially rectangular plate portion 6a and a plate portion 6a which is formed near both ends of the upper end of the plate portion 6a with a predetermined space therebetween, and is vertically outward to the plate portion 6a. A pair of upper horizontal frames 6b that extend and end vertical frames 6c that also extend outward from the left and right ends of the plate 6a in a direction perpendicular to the plate 6a.
And a lower horizontal frame 6d that extends outward from the lower end of the plate portion 6a in a direction perpendicular to the plate portion 6a, and a vertical strip that extends downward from the tip of the lower horizontal frame 6d in a direction perpendicular to the lower horizontal frame 6d. From the plate portion 6e and the lower end of the vertical strip plate portion 6e, the vertical strip plate portion 6e
And a horizontal strip plate portion 6f extending vertically to the plate portion 6a. The upper split door 6'is formed with notches 6g by recessing the vicinity of both ends of the horizontal strip 6f upward, and the vertical strip 6e is slightly recessed. A plurality of 6h are formed.

A side plate 6i1 hanging downward is formed from opposite ends of the upper horizontal frame 6b of the upper split door 6 ', and a bottom plate 6i2 connecting the lower ends is formed at the lower end of the side plate 6i1. In addition, the side plate 6i1 and the bottom plate 6 are
The front plate 6i3 is connected to i2. And
The plate portion 6a, the side plate 6i1, the bottom plate 6i2, and the front plate 6i3 form a lock member housing space S1 in which a first lock member K1 described later can be housed. 6j is a substantially U-shaped fitting frame provided on the upper surface of the upper horizontal frame 6b.

6k is a vertical frame 6c at the end of the upper split door 6 '.
In addition to being arranged vertically in the vicinity,
A horizontal plate portion 6k1 having one end connected to the end vertical frame 6c,
Vertical plate portion 6k2 connecting the other end of the horizontal plate portion 6k1
And a middle vertical plate portion 6k3 connected between the pair of horizontal plate portions 6k1 is a side lock housing frame member capable of housing a side lock member K2 described later. A predetermined slit 6k4 is formed between the intermediate vertical plate portion 6k3 and the plate portion 6a, and a vertical groove 6c1 into which a side lock member K2 to be described later can be inserted is also formed in the end vertical frame 6c. It is set up.

Further, the inner wall surface of the plate portion 6a is a predetermined height from the upper end of the upper split door 6 '(a surface located inside the folding container when the folding container is assembled).
6a1 is recessed to form a stepped portion 6a2, and the width of the end vertical frame 6c located above the stepped portion 6a2 (the plate portion 6a
By reducing the length w1 in the vertical direction with respect to a, a thin portion 6m is formed in the upper part of the upper split door 6 '. The inner wall surface 6a of the plate portion 6a of the upper split door 6 '
It is preferable that 1 is formed on a smooth surface without protrusions, and horizontal ribs 6n and vertical ribs 6p for reinforcement are appropriately formed on the outer wall surface 6a3 of the plate portion 6a.

The first lock member K1, which is housed in the lock member housing space S1 formed in the upper split door 6'and is movable in the horizontal direction, has a base portion k1 whose front shape is horizontally long. In the middle, a pair of vertical handle ribs k2 are formed at a predetermined interval. Near both ends of the upper surface of the base portion k1, a back plate k3a erected on the upper surface, a top plate k3b extending from the upper end of the back plate k3a in the same direction as the handle vertical ribs k2, and a side plate k3c are provided. A hook member k3 is formed. The hook members k3 arranged at a predetermined interval are open at the front and open at one side in the same direction. Also, k
Reference numeral 4 denotes a pair of fitting protrusions provided on the front surface of the base portion k1. The first lock member K1 having such a configuration is housed in the lock member housing space S1 as shown in FIG. 4 and FIG. 5, but when it is housed in the lock member housing space S1. , The front plate 6i in which the pair of fitting protrusions k4 projectingly provided on the front surface of the base portion k1 form the lock member accommodation space S1.
3 is configured to be inserted into the pair of laterally elongated slits 6i4, and the handle vertical ribs k2 formed on the base k1 of the first lock member K1 form the lock member accommodation space S1. Recess 6 formed in front plate 6i3
It is configured to be located within i5.

The side lock member K2 arranged in the side lock housing frame member 6k includes a plate portion k10a and a plate portion k10.
An operating portion k including a ridge k10b formed around a
10 and further includes an intermediate vertical plate portion 6k3 and a plate portion 6
It has a lock piece k11 which is inserted into a slit 6k4 formed between a and a, and whose tip portion is capable of retracting from a vertically elongated groove 6c1 formed in an end vertical frame 6c. The slit 6k4 formed between the intermediate vertical plate portion 6k3 and the plate portion 6a is provided with a lock piece k of the side lock member K2.
By inserting 11 and arranging the operating portion k10 in a region surrounded by the horizontal plate portion 6k1, the vertical plate portion 6k2, and the intermediate vertical plate portion 6k3 of the side lock housing frame member 6k, the side lock member K2 is It is configured to be arranged in the side lock housing frame member 6k.

H1 is a cutout portion 6g of the upper split door 6 '.
It is a lower hinge block having a horizontal hole h1a into which the pinge pin h2 is fitted, which is arranged in the vicinity of the vertical strip plate portion 6e in which is formed. A plurality of lower hinge blocks are formed at predetermined intervals (in this embodiment). Has two lower hinge blocks h
1 is formed. ). In addition, h3 is the vertical strip 6
It is a lower hinge female part having a substantially cylindrical shape in which a split groove h3a is formed in the front, in which a recess 6h in which e is slightly recessed is disposed.

The lower split door 6 "has a horizontally long substantially rectangular plate portion 6q, a horizontally elongated strip portion 6r connected to the upper end of the plate portion 6q and narrower than the width of the plate portion 6q, and left and right ends of the plate portion 6q. From
It has an end vertical frame 6s that extends outward perpendicularly to the plate portion 6q, and a lower horizontal frame 6t that also extends outward perpendicularly to the plate portion 6q from the lower end of the plate portion 6q. In addition, the inner wall surface of the plate portion 6q of the lower split door 6 "(the surface located inside the folding container when the folding container is assembled)
6q1 is preferably formed on a smooth surface without protrusions, and horizontal ribs 6u and vertical ribs 6v for reinforcement are appropriately formed on the outer wall surface 6q2 of the plate portion 6q.

On both sides of the horizontally long strip 6r, the horizontally long strip 6 is formed.
A notch portion 6w formed by r and the plate portion 6q is formed, and a horizontal hole h4a into which the above-described pin dip pin h2 is fitted is formed above the plate portion 6q located at the notch portion 6w.
A plurality of upper hinge blocks h4 having the above are formed at predetermined intervals (two upper hinge blocks h4 are formed in this embodiment). Also, h5 is
Outer wall surface of the horizontally elongated strip portion 6r (a surface located outside the folding container when the folding container is assembled)
, A pair of support pieces h5a formed at a predetermined interval.
And a pin h5b bridging a pair of support pieces h5a, the upper hinge male part h5 is arranged corresponding to the lower hinge female part h3 formed on the upper split door 6'described above. It is set up. 6x is a supporting piece h5a of the adjacent upper hinge male portion h5 and an adjacent supporting piece h5.
It is a connecting horizontal plate that connects a and the upper hinge block h4. Further, a lower hinge block h6 having a horizontal hole h6a similar to the upper hinge block h4 described above is vertically provided at both ends of the lower surface of the lower horizontal frame 6t.
On the lower surface of the lower horizontal frame 6t located between the lower hinge blocks h6, a pair of supporting pieces h7a similar to the above-mentioned upper hinge male portion h5 and a pair of supporting pieces h are provided at a predetermined interval.
Lower hinge male part h consisting of pin h7b bridging 7a
7 are formed.

The upper split door 6'and the lower split door 6 "are, as shown in FIGS. 4 and 5, the lower hinge block h1 of the upper split door 6'and the upper hinge of the lower split door 6". After the blocks h4 are alternately arranged, the hinge pin h2 is fitted into the horizontal hole h1a of the lower hinge block h1 of the upper split door 6'and the horizontal hole h4a of the upper hinge block h4 of the lower split door 6 ", and the upper split door is The pin h5b of the upper male hinge portion h5 of the lower split door 6 "is fitted into the split groove h3a of the lower hinge female portion h3 of 6'to be hinge-coupled. Then, by the lower hinge block h1 of the upper split door 6 ', the upper hinge block h4 of the lower split door 6 ", the horizontal hole h1a of the lower hinge block h1 and the hinge pin h2 fitted in the horizontal hole h4a of the upper hinge block h4, A hinge member H2 ′ for connecting the upper split door 6 ′ and the lower split door 6 ″ by hinges at both ends thereof is configured, and the lower hinge female portion h3 of the upper split door 6 ′ and the lower split door 6 ″ are formed. By the upper hinge male part h5, the upper split door 6'and the lower split door 6 "are
A hinge member H2 ″ that is hinge-connected between the hinge members H2 ′ is configured.

The hinge member H1 for hinge-connecting the end of the side frame 5b of the upper divided side wall 5'and the end of the side frame 5d of the lower divided side wall 5 "is the lower hinge block h1 of the upper divided door 6'described above. And upper hinge block h4 of lower split door 6 "
And a hinge member H2 'having a horizontal hole h1a of the lower hinge block h1 and a hinge pin h2 fitted in the horizontal hole h4a of the upper hinge block h4.

A hinge block h8 similar to the above-mentioned upper hinge block h4 of the lower divided door 6 "is formed on both ends of the lower frame 5c of the lower divided side wall 5",
In addition, in the upper part of the lower frame 5c located between the hinge blocks h8, the lower hinge male part h7 of the lower split door 6 ″ described above is provided.
Corresponding to the above, a hinge female part h9 similar to the lower hinge female part h3 formed on the upper split door 6'is formed. Then, similar to the hinge connection between the upper split door 6 ′ and the lower split door 6 ″, as shown in FIG. 4 and FIG.
After alternately arranging the hinge block h8 of the lower divided side wall 5 "and the lower hinge block h6 of the lower divided side wall 6", the horizontal hole of the hinge block h8 of the lower divided side wall 5 "and the lower hinge block h6 of the lower divided side door 6" are arranged. In the horizontal hole h6a of
By inserting the hinge pin h2, a hinge member H3 'for connecting the lower divided side wall 5 "and the lower divided door 6" is configured, and the lower divided side wall 5 "is divided from the split groove of the hinge female portion h9. By inserting the pin h7b of the lower hinge male portion h7 of the door 6 ″, a hinge member H3 ″ that hinge-connects the lower divided side wall 5 ″ and the lower divided door 6 ″ is configured.

The outer surface portion (the portion located outside the folding container when the folding container is assembled) 5a1 of the upper frame 5a of the upper split side wall 5'includes the upper horizontal frame 6b of the upper split door 6'described above. A fitting protrusion 7 that can be inserted into the fitting frame 6j is provided in a projecting manner so as to correspond to the substantially inverted U-shaped fitting frame 6j provided on the upper surface. Further, a concave portion 8 into which the lock piece k11 of the above-mentioned side lock member K2 can be inserted is formed in the side portion of the side frame 5b of the upper divided side wall 5 ', which faces each other.

A suitable horizontal frame 5e formed on the upper frame 5a of the upper divided side wall 5'is provided with the above-mentioned first locking member K1.
Back plate k3a and top plate k3b formed on the upper surface of the base k1 of the
A pair of locking members 9 are formed at the same intervals as the pair of hook members k3 including the side plate k3c. Locking member 9
Is a front plate 9a hanging from the vicinity of the tip of the horizontal frame 5e.
And a horizontal plate 9b extending inward from the lower end of the front plate 9a
And the side plate 9b, the locking member 9 is open at one side in the same direction. The pair of hook members k3 of the first lock member K1 housed in the lock member housing space S1 formed in the above-described upper split door 6'and the pair of locks formed in the upper frame 5a of the upper split side wall 5 '. The members 9 are arranged such that their open side portions face each other.

As shown in FIG. 1, when the folding container is assembled in a box shape, the upper split door 6'and the lower split door 6 "are arranged side by side in a substantially flush state. The pair of hook members k3 of the first lock member K1 housed in the lock member housing space S1 formed in the upper split door 6'and the horizontal frame 5e of the upper frame 5a of the upper split side wall 5 '. The pair of locking members 9 are in a locked state, that is, the back plate k3a that constitutes the hook member k3 of the first locking member K1 arranged on the upper split door 6 ′ and the upper frame of the upper split side wall 5 ′. The front plate 9a constituting the locking member 9 disposed in 5a is arranged so as to face the back plate k3a constituting the hook member k3. It is formed between the divided side wall 5 ′ and the outer surface portion 5a1 of the upper frame 5a. It was being inserted into the gap,
In addition, the top plate k3b that constitutes the hook member k3 of the first lock member K1 and the horizontal plate 9b of the locking member 9 that is located below and close to the top plate k3b are partially It is configured to overlap. As described above, the top plate k3b that forms the hook member k3 of the first lock member K1 and the horizontal plate 9 of the locking member 9 that is located below and close to the top plate k3b.
Since b and B are configured so as to partially overlap each other in a plan view, even if external force from above is applied to the upper split door 6 ', or internal pressure from the inside of the folding container is applied. Also, since the top plate k3b constituting the first lock member K1 arranged on the upper split door 6'engages with the horizontal plate 9b of the locking member 9 arranged on the upper split side wall 5 ', The locked state of the split door 6'and the upper split side wall 5'is not easily released, thus preventing the upper split door 6'and the lower split door 6 "from being opened accidentally. it can.

Further, when the folding container is assembled in a box shape, the fitting protrusion 7 projecting from the outside of the upper frame 5a of the upper division side wall 5'is provided with the upper division door 6 '.
Since it is configured to be inserted into a substantially inverted U-shaped fitting frame 6j provided on the upper surface of the upper horizontal frame 6b, the external force is applied to the upper split door 6 ′ from the lateral direction such as upward or shift. Even if the above is added, the first lock member K1 provided on the upper split door 6'and the locking member 9 provided on the upper split side wall 5'described above.
It is possible to prevent the upper split door 6 ′ and the upper split side wall 5 ′ from being unlocked in combination with the lock mechanism of, and therefore, carelessly, the upper split door 6 ′ and the lower split door 6 ″. It can be surely prevented from opening.

Further, as shown in FIG. 7, an elastic tongue piece k5 is provided at the corner of the base portion k1 of the first lock member K1, which extends horizontally and has a projection k5a on its lower surface. While forming the bottom plate 6i2 of the upper split door 6 ',
It is also possible to form two recesses or holes 6i6 into which the projections k5a protruding from the lower surface of the elastic tongue piece k5 can be fitted, with a predetermined interval. Then, in the locked state of the hook member k3 of the first lock member K1 and the locking member 9 of the upper divided side wall 5 ′, the projection k5a protruding from the lower surface of the elastic tongue piece k5 is formed on the bottom plate 6i2. It is configured to be fitted into one of the recesses or the holes 6i6 to suppress the movement of the first lock member K1. Therefore, careless release of the locked state can be prevented. Further, when releasing the locked state by the hook member k3 of the first lock member K1 and the locking member 9 of the upper divided side wall 5 ′, the protrusion k5a is
The other recess or hole 6i6 formed in the bottom plate 6i2
The first lock member K1 is configured so as not to move.

Further, in the state where the folding container is assembled in a box shape, the side frame 5 of the upper divided side wall 5 '.
Since the lock piece k11 of the side lock member K2 arranged in the upper split door 6'is inserted into the recess 8 formed in b, depending on the articles stored in the folding container,
Even if internal pressure is applied to the upper split door 6'and the lower split door 6 ",
It is possible to prevent the upper split door 6 ′ from expanding to the outside greatly, and the first lock member K1 provided on the upper split door 6 ′ and the locking member 9 provided on the upper split side wall 5 ′. It is possible to reliably prevent the upper split door 6 ′ and the lower split door 6 ″ from being opened carelessly in combination with the lock mechanism by.

From the above-mentioned locked state, the upper split door 6 '
First housed in the lock member housing space S1 formed in
A direction in which the first locking member K1 is moved away from the locking member 9 arranged on the upper divided side wall 5 ′ by holding the handle vertical rib k2 of the locking member K1, that is, in the right direction in FIGS. 4 and 5. To the hook member k of the first lock member K1.
By releasing the overlapping state of the top plate k3b that constitutes the third member 3 and the horizontal plate 9b of the locking member 9, the first lock member K1 provided on the upper split door 6 ′ and the upper split side wall 5 ′ are arranged. The locked state with the provided locking member 9 is released. Further, by moving the side lock member K2 arranged on the upper split door 6 ′ toward the central portion while holding the operating portion k10, the side lock member K2 is removed from the concave portion 8 formed on the side frame 5b of the upper split side wall 5 ′. , The lock piece k1 of the side lock member K2
1 is discharged to release the locked state by the side lock member K2 arranged on the upper split door 6'and the recessed portion 8 formed on the side frame 5b of the upper split side wall 5 '. Then, the upper split door 6'is centered on the hinge members H2 'and H2 "that hinge-connect the upper split door 6'and the lower split door 6".
By rotating outward, the fitting frame 6j arranged on the upper horizontal frame 6b of the upper split door 6'is removed from the fitting protrusion 7 provided on the upper frame 5a of the upper split side wall 5 '. , The upper split door 6'is stacked on the lower split door 6 ". After that, the upper split door 6'and the lower split door 6" which are stacked on top of each other, the lower split door 6 "and the lower split side wall 5" 13 and 14 show the upper split door 6'and the lower split door 6 "by pivoting outwardly around hinge members H3 'and H3" that are hinged to 5c. So that you can open it.

The upper split door 6'and the lower split door 6 "are stacked as shown in FIG. 14 in the opened state as shown in FIGS. 13 and 14. Of the upper split door 6 ′ and the lower split door 6 ″, the inner wall surface 6a1 of the plate portion 6a of the upper split door 6 ′ comes into contact with the lower frame 5c of the lower split side wall 5 ″ and is in a stacked state. The upper split door 6 ′ and the lower split door 6 ″ are inclined at a predetermined angle θ with respect to the upper split side wall 5 ′ and the lower split side wall 5 ″ which are substantially flush with each other in a substantially vertical state. The larger the angle θ is, in other words, the upper split door 6 ′ in the stacked state.
And the lower split door 6 ″, the upper split door 6 ′ and the lower split door 5 ′ in the stacked state from the upper split side wall 5 ′ and the lower split side wall 5 ″ that are substantially flush in the substantially vertical state as the vertical split state 6 "
Since the distance D to the tip P of the box becomes short, an operator who takes out the article stored in the folding container assembled in the box shape or stores the article in the folding container assembled in the box shape , The foldable container can be approached, and thus the loading and unloading operation of the article is facilitated. In this embodiment, of the upper split door 6 ′ and the lower split door 6 ″ in the stacked state, the upper part of the upper split door 6 ′ that comes into contact with the lower frame 5c of the lower split side wall 5 ″ is as described above. Since the thin portion 6m is formed on the upper part, the upper split door 6'and the lower split door 6 "are stacked.
Rotate more largely, and therefore the above-mentioned inclination angle θ becomes larger, so that the upper divided side wall 5 ′ and the lower divided side wall 5 ″, which are substantially vertical in a substantially vertical state, are overlapped with each other. The distance D between the door 6 ′ and the tip P of the lower split door 6 ″ is shortened, and the worker can come closer to the folding container, so that the workability of taking in and out the article is improved.

As described above, when the upper split door 6'and the lower split door 6 "are opened, the upper split door 6'is used.
Are to be stacked on the lower split door 6 ″, but at this time, the side lock housing frame member 6k disposed on the upper split door 6 ′.
The protruding portion protruding outward from the outer wall surface 6a3 of the plate portion 6a of the upper split door 6'such as the side plate 6i1 and the front plate 6i3 forming the lock member accommodation space S1 is the plate portion 6q of the lower split door 6 ".
The upper split door 6 ′ and the lower split door 6 ″ may not be completely overlapped with each other by contacting the reinforcing horizontal ribs 6u and the vertical ribs 6v formed in the above. In this embodiment, the projecting portion projecting outward from the outer wall surface 6a3 of the plate portion 6a of the upper split door 6'described above is a horizontal rib 6u or a vertical rib 6v formed on the plate portion 6q of the lower split door 6 ". The outer wall surface of the plate portion 6q of the horizontal rib 6u or the vertical rib 6v (the surface located outside the folding container when the folding container is assembled)
By lowering the height w2 from 6q2, the concave portion 6v1 is formed in the horizontal rib 6u or the vertical rib 6v, and the protruding portion protruding outward from the plate portion 6a of the upper split door 6'is a lower split door 6 ". The horizontal ribs 6u and the vertical ribs 6v formed on the plate portion 6q do not come into contact with each other.This embodiment shows an example in which the vertical ribs 6v are provided with the concave portions 6v1. ing.

Next, with reference to FIG. 11 and FIG. 12, an engaging structure in the vicinity of the hinge between the upper split door 6'and the lower split door 6 "will be described.

As described above, the upper split door 6'and the lower split door 6 "are the lower hinge block h of the upper split door 6 '.
1 and the upper hinge block h4 of the lower split door 6 "are alternately arranged, and then the lower hinge block h1 of the upper split door 6 '.
The hinge pin h2 is inserted into the horizontal hole h1a of the lower split door 6 ″ and the horizontal hole h4a of the upper hinge block h4 of the lower split door 6 ″, and the split groove h of the lower hinge female portion h3 of the upper split door 6 ′ is inserted.
The hinge connection is made by fitting the pin h5b of the upper hinge male portion h5 of the lower split door 6 ″ from 3a.
Further, a lower horizontal frame 6d, a vertical strip 6e extending downward from the tip of the lower horizontal frame 6d, and a plate from the lower end of the vertical strip 6e are provided below the plate 6a of the upper split door 6 '. A horizontal strip plate portion 6f extending in the direction of the portion 6a is formed. Then, as shown in FIG. 11, in a state where the folding container is assembled in a box shape and the upper split door 6 ′ and the lower split door 6 ″ are arranged side by side in a substantially flush state, The connecting horizontal plate 6x of the lower split door 6 "is disposed close to the lower side of the horizontal strip plate portion 6f of the upper split door 6 ', and extends outward from the upper end of the horizontally elongated strip portion 6r of the lower split door 6". The existing narrow horizontal frame 6r1 is disposed close to and below the lower horizontal frame 6d of the upper split door 6 ', and further, the horizontally elongated strip portion 6r of the lower split door 6 "and the vertical strip of the upper split door 6'. The horizontal strip 6r of the lower split door 6 "is located inside the folding container, and the vertical strip 6e of the upper split door 6'is located opposite the plate 6e. Be positioned outside the folding container with respect to the 6 "horizontal strip 6r It has been made.

The first lock member K1 provided on the upper split door 6'and the locking member 9 provided on the upper split side wall 5'are unlocked and further provided on the upper split door 6 '. The lock state by the lock piece k11 of the side lock member K2 and the recessed portion 8 formed in the side frame 5b of the upper divided side wall 5'is released to release the upper divided door 6 ', as shown in FIG. Even if the upper split door 6 ′ is rotated outward from the state where the upper split door 6 ″ and the lower split door 6 ″ are juxtaposed substantially flush with each other, as shown in FIG. Since the vertical strips 6e and the horizontal strips 6f that form the lower part of the'do not enter the folding container assembled in the box shape, the upper split door 6'is assembled in the box shape. It does not come into contact with the items stored in the folding container and Dividing door 6 'with the rotating operation industry can be easily performed, the upper split door 6'
However, it is possible to prevent the articles from being damaged by coming into contact with the articles stored in the folding container assembled in the box shape.

Further, after the work of putting in and taking out the articles stored in the folding container assembled in the box shape is completed,
The upper split door 6'and the lower split door 6 "in a stacked state,
Pivot substantially vertically, and then vertically rotate the upper split door 6'overlying the lower split door 6 ", and thereafter, as described above, the lock member formed on the upper split door 6 '. The first lock member K1 housed in the housing space S1 and the locking member 9 formed on the upper frame 5a of the upper divided side wall 5 ′ are brought into a locked state, and the side frame 5b of the upper divided side wall 5 ′ is formed.
The lock piece k11 of the side lock member K2 arranged on the upper split door 6'is inserted into the recess 8 formed in the above. In such a closing operation of the upper split door 6'and the lower split door 6 ", the upper split door 6'overlapping the lower split door 6" is also rotated vertically when the upper split door 6'is rotated. 6 '
Since the vertical strip portion 6e and the horizontal strip portion 6f that form the lower part of the box do not enter the folding container that is assembled in the box shape, the upper split door 6'is assembled in the box shape. Since it does not come into contact with the articles stored in the folding container, the upper split door 6'can be easily rotated vertically, and the upper split door 6'is box-shaped. It is possible to prevent the articles stored in the assembled folding container from coming into contact with the articles, and to prevent the articles from being caught by the upper split door 6'and the lower split door 6 ".

As shown in FIG. 15, the lower part 60 of the upper split door 6'is located inside the folding container assembled in a box shape, and the upper part 6 of the lower split door 6 "is also provided.
1 is located outside the lower portion 60 of the upper split door 6 ', and the lower portion 60 of the upper split door 6'is hinged H.
When extending longer than 2'and H2 "below, the upper split door 6'and the lower split door 6" are shown in FIG. 15 from a state where they are juxtaposed substantially flush with each other. Thus, when the upper split door 6'is rotated outward, the lower part 6 of the upper split door 6'is
0 goes into the folding container assembled in a box shape, and thus the lower part 60 of the upper split door 6 '.
Contact the articles stored in the box-shaped folding container, making it difficult to rotate the upper split door 6 ', and the upper split door 6'is folded into the box-shaped folding container. The article is damaged by coming into contact with the article stored in.

Further, after the work of taking in and out the articles stored in the folding container assembled in the box shape is completed,
The upper split door 6'and the lower split door 6 "in a stacked state,
When the upper split door 6'which is vertically rotated and then the upper split door 6'overlying the lower split door 6 "is vertically rotated, the lower portion 60 of the upper split door 6'is formed into a box shape. Since it enters the assembled folding container, the upper split door 6'abuts the article stored in the box-shaped folded container and damages the article, or the lower part of the upper split door 6 '. 60 and the upper part 61 of the lower split door 6 ″ cause a problem such as pinching an article.

A stopper portion 10 is formed on the lower split door 6 "by extending the plate portion 6q of the lower split door 6" downward beyond the lower horizontal frame 6t,
In addition, the corners located inside the box-shaped folding container formed by the upper horizontal frame 5c1 and the vertical plate 5c2 that constitute the lower frame 5c of the lower dividing side wall 5 ″ have the above-mentioned lower dividing structure. A notch step 11 is formed to which a stopper 10 formed on the door 6 ″ is fitted. Further, when the folding container is assembled in a box shape, the stopper portion 10 formed on the lower split door 6 ″ is attached to the lower frame of the lower dividing side wall 5 ″ from the inside of the folding container assembled in the box shape. It is configured to fit into a notch 11 formed at a corner located inside the folding container 5c. With this structure, even if the lower divided side wall 5 "tries to bulge outward due to the weight of the articles stored in the folding container assembled in the box shape, the stopper formed on the lower divided door 6". Since the part 10 is fitted into the notch 11 formed in the corner of the lower frame 5c of the lower split side wall 5 "located inside the folding container, the lower split door 6" is assembled in a box shape. Due to the weight of the articles stored in the folded folding container, the articles bulge outward and are damaged, or the hinge members H3 ′ and H3 ″ that hinge-connect the lower split door 6 ″ and the lower split side wall 5 ″ are damaged. This can be prevented.

[0043]

Since the present invention is constructed as described above, it has the following effects.

When the upper and lower split doors are opened,
Since the thin part is formed on the upper part of the upper split door that abuts on the lower split side wall, the worker who carries out and puts in the items stored in the folding container assembled in the box shape comes closer to the folding container. You can get closer,
Therefore, the work of taking in and out the article becomes easy.

The height of the ribs is made low so that the protruding portion protruding outward from the outer wall surface of the upper split door does not come into contact with the rib formed on the lower split door. Can be completely overlapped.

[Brief description of drawings]

FIG. 1 is a perspective view of a folding container according to the present invention assembled in a box shape.

FIG. 2 is a perspective view of the folding container according to the present invention during folding.

FIG. 3 is a perspective view of the folding container of the present invention folded in a compact state with a low height.

FIG. 4 is a partial perspective view of one of the split side walls and the flip-up side wall which constitute the folding container according to the present invention.

FIG. 5 is a front view of the folding container according to the present invention.

FIG. 6 is an exploded perspective view of an upper split door and a lower split door that constitute the folding container of the present invention.

FIG. 7 is an exploded perspective view of an upper split door that constitutes the folding container according to the present invention.

FIG. 8 is a partially exploded perspective view of an upper split door and a side lock member of the folding container according to the present invention.

FIG. 9 is a partial perspective view of an upper frame, an upper split door, and the like that constitute the folding container of the present invention.

FIG. 10 is a partial perspective view of an upper frame and an upper split door constituting the folding container of the present invention.

FIG. 11 is a vertical cross-sectional view along the flip-up side wall of the folding container of the present invention.

FIG. 12 is a vertical cross-sectional view along the flip-up side wall of the folding container of the present invention similar to FIG.

FIG. 13 is a perspective view showing a state where the folding containers of the present invention assembled in a box shape are stacked.

FIG. 14 is a vertical cross-sectional view along the flip-up side wall of the folding container of the present invention similar to FIG.

FIG. 15 is a vertical sectional view along a flip-up side wall similar to FIG. 11 for explaining the problem of the conventional folding container.

[Explanation of symbols]

K1 ... First lock member K2 ... ・ Side lock member 1 ... Top frame 2 ... bottom 3 ・ ・ ・ ・ ・ ・ Splashed side wall 4 ... Dividing side wall 4 '... 4 "・ ・ ・ ・ Lower side wall 6 '... the upper split door 6 "... ・ Lower split door

Claims (2)

[Claims] 1. An upper frame, and a split side wall facing a bottom and a flip-up side wall facing each other, and the split side wall is composed of an upper split side wall and a lower split side wall. In a folding container in which a split door and a lower split door are arranged, a thin portion is formed on the upper part of the upper split door that abuts the lower split side wall when the upper split door and the lower split door are opened. Folding container featuring. 2. The height of the ribs is made low so that the protruding portion protruding outward from the outer wall surface of the upper split door does not come into contact with the rib formed on the lower split door. Folding container described in.