JP3430517B2 - Foldable transport container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable transport container that can be handled by a forklift or the like while containing articles.

[0002]

2. Description of the Related Art Conventionally, as a container of this type, for example, a folding wire mesh box pallet found in Japanese Utility Model Laid-Open No. 63-126241 has been provided. In this conventional structure, the leg net receiving portion is formed by raising the right and left opposite sides of the bottom net on the flat surface of the underframe, and the front and back nets and the side net are formed inside the outer circumference of the bottom net. The vertical bottom part of the front net is connected to the bottom net via the ring body so that it can be tilted up and down. It is connected to the net body via the ring body so that it can be tilted up and down. The other vertical side of the net is connected to both vertical sides of the front net so that it can be locked.

According to this conventional structure, the nets can be stacked in a standing state, and the nets can be folded on the underframe by being laid sideways through the ring body, and the folding can be performed. In this state, the leg pieces can be stacked in multiple stages by fitting the leg pieces from above into the leg piece receiving portions.

[0004]

However, according to the above-mentioned conventional structure, since the left and right side nets and the back net are connected by the ring body located at the corner, the strength of the corner is lowered. However, in particular, when the nets are erected and the articles are stored, the loads on the upper side cannot be sufficiently received when the articles are stored, and the stacking cannot be performed stably. Further, when the front net is laid sideways with respect to the bottom net in a stacked state, it becomes more unstable, and the order picking work cannot be easily performed. Further, due to the joint structure of the corner portion, this corner portion looks unattractive and causes a catch with another object.

In the above conventional structure, stacking is
Since the leg pieces are fitted to the wire material forming the leg piece receiving portion, for example, when the truck is transported in a stacked state, the vertical vibration load is concentrated on the wire material and Will bend (deform), which will cause stacking to collapse and the intended assembly cannot be performed accurately. Also, the lateral vibration causes the leg pieces to slide laterally against the wire,
The misalignment causes the stacking to collapse.

Further, according to the above-mentioned conventional structure, since the front net body and the back net body are joined to the bottom net body by the ring body, the strength of this joint portion is lowered, and especially each net body is erected. The load on the upper side cannot be sufficiently received during the stacking with the articles stored and the stacking cannot be performed stably. Further, since the ring body is exposed to the outside, another object easily collides with the ring body and is easily damaged.

The object of the present invention is to make it possible to perform a desired folding, but it is possible to ensure sufficient strength of the corner portion, and the corner portion has a shape that is good-looking and does not get caught on other objects. Further, stacking at the time of folding can be performed without deforming the main part and without shifting the position, and sufficient strength at the time of standing can be secured, and the connecting part for standing swing is The point is to provide a foldable transport container that can be protected by each frame in both standing and lying down.

[0008]

In order to achieve the above object, the collapsible transport container of the first invention is provided with a pair of left and right side frames that can stand upright on a bottom frame , and these side frames have front and rear edges thereof. Department
Has a bent part that is bent in the opposite direction from
The front frame that can be freely positioned between the bent parts of the front part is the first connecting tool.
It can be freely folded up and down through the bottom of the bottom frame
Bending at the rear by connecting upright and sideways via a connecting tool
The side edge of the rear frame that can be freely placed between the parts
Connect via a connecting tool to rock both side frames to the rear frame.
It is movably configured and stands up with the rear frame on the bottom frame via the fourth connecting tool.
It is connected sideways .

In the foldable transport container according to the second aspect of the present invention, in the structure according to the above-mentioned claim 1 , a leg is hung vertically on the lower portion of the bottom frame, and the leg is on the bottom frame of the lower transport container. so
Place the legs of the upper carrier on both sides of the folded frame group.
It is configured as

Further, the collapsible transport container according to the third aspect of the present invention has the structure described in claim 1 or 2 described above.
As for the frame, the bottom frame part bent forward from its lower edge is integrated.
The front edge of this bottom frame part is used as the bottom frame, and the fourth connecting tool is used.
The legs are connected so that they can be erected sideways, and the bottom frame is provided with legs that can be fitted from above to the upper parts of the erected side frames.

[0011]

According to the structure of the first invention, the rear frame is made the fourth frame.
Stand up with connecting tool as fulcrum, and connect both side frames to third
With the tool as a fulcrum, swing forward and in a state of being parallel to each other.
Stand up, and further connect the front frame to the first connector and the second connector.
By raising the tool as a fulcrum , the transport container can be assembled for use. Due to the presence of the bent portion, this transport container can sufficiently secure the strength of the corner portion, and the corner portion has a rounded shape, which makes it good-looking and hard to be caught by other objects. When you fold the shipping container
First, bend the front frame in the middle with the first connector as the fulcrum.
Along with the second connecting tool as a fulcrum, fold inward to the bottom
Stack on the frame. Next, use both side frames as the fulcrum for the third connector.
Then, fold it backward and face the rear frame in parallel. That
And the rear frame, with the fourth connector as a fulcrum, along with both side frames to the front
Fold it in place and stack the side frame on the front frame
Finish folding. This folded shipping container is
Place the legs of the upper transport container on the bottom frame of the container.
By doing so, they can be accumulated in sequence.

[0012] According to the configuration of the present second invention, stacking of carrier container folded folding is performed by causing placing the leg of the upper transportation container on the bottom frame of the lower transfer vessel. At that time, since the legs of the upper transportation container are located outside both sides of the folded frame group of the lower transportation container, the displacement of the upper transportation container in the left-right direction is caused by the contact of the legs with the frame group . Can be stopped.

According to the third aspect of the present invention, the assembly is performed.
The stacked transport containers will be
Fit the legs of the upper transport container from above on the upper side frame
It can be done by

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. In FIGS. 1 and 5 to 7, reference numeral 1 denotes a base body, which is a pair of left and right front and rear members 1A and front and rear members 1A.
A plurality of front and rear left and right members 1B for connecting the inner surfaces facing each other
And are formed into a frame shape. A mesh plate-shaped bottom frame 2 is laid on the base body 1. A pair of left and right side frames 3 are provided on both sides of the bottom frame 2 so that they can stand and fall sideways.
Each of the side frames 3 has a mesh plate shape, and integrally has a bent portion 3A that is bent at a right angle from the front and rear edges thereof in opposite directions. The side frame 3 is formed such that when it is erected, the lower end surface 3a of the side frame 3 including both bent portions 3A is in contact with the bottom frame 2 from above.

A rectangular plate-shaped bracket 4 is erected from the left and right edges and the front and rear edges of the bottom frame 2 with its flat surface directed in the front-rear direction. That is, the bracket 4 has a plurality of recesses 5 whose lower surface is open at the bottom thereof, and the bracket 4 is inserted into the bottom frame 2 from above so that the wire 2A of the bottom frame 2 is located in the recesses 5. The locking piece 4A bent inward from the lower end is brought into contact with the left and right members 1B from below and then welded to be erected on the bottom frame 2. At that time, the standing position is set inward with respect to the front / rear surface 2a of the bottom frame 2 by a predetermined distance L, and the height H is higher than the upper surface of the front / rear frame (which will be described later) which is lying down. Also has a height protruding upward.

A connecting body 6 which is freely opposed to the bracket 4 from the inside in the front-rear direction is provided continuously from the lower portions of the pair of left and right side frames 3 and from the front and rear edges. That is, in the upright state of the side frame 3, the connecting body 6 has an inverted L due to the inward protruding portion 6A and the hanging portion 6B extending downward from the inner end side of the protruding portion 6A.
It is formed in a mold shape, and further, a concave engaging portion 6C is formed on the inner side surface under the hanging portion 6B. Hanging part 6 here
The width W _{1 in} the left-right direction of B is set so that it can penetrate between the wire rods 2A of the bottom frame 2. Further, the connecting body 6 is formed with an elongated hole 7 extending in the vertical direction from the protruding portion 6A to the hanging portion 6B, and an engagement step portion 8 communicating with the lower portion of the elongated hole 7 and bulging outward. There is. Further, the connecting body 6 integrally has a connecting plate portion 6D positioned at a right angle from the outer end thereof by bending, and the connecting plate portion 6D is fixed to the inner surface of the side frame 3 by welding.

In this way, the bracket 4 and the connecting body 6 facing each other in the front-rear direction are connected to each other via the front-rear direction pin 9 passing through the elongated hole 7. That is, the front-rear direction pin 9 which protrudes inward by welding to the bracket 4 is passed through the elongated hole 7 through the washer 10, and the disc-shaped stop plate 11 is fixed to the outer end of the front-rear direction pin 9. ing. The side frames 3 are connected to the bottom frame 2 so that they can be erected and laid down sideways by the connecting parts 12 composed of the above 4 to 11. At this time, the connecting parts 12 are located inside the bent part 3A in the front-rear direction. To
Further, it is arranged inside the side frame 3 in the left-right direction.

Thus, when the side frame 3 is erected, the side frame 3 is raised.
The lower end surface 3a of the front end abuts on the bottom frame 2, and the front-rear direction pin 9 is located at the upper end of the elongated hole 7. When the side frame 3 is laid down sideways, the upward engaging step portion 8 contacts the front-rear direction pin 9. The lateral lower end surface 3a of the side frame 3 is configured to be positioned inside the side surfaces of the front frame and the rear frame while being engaged from above. Further, when the side frame 3 is slightly pulled up and tilted outward by a predetermined angle, the wire rod 2A of the bottom frame 2 is engaged with the engaging portion 6C to maintain the tilted posture.

A front frame 13 and a rear frame 14, which are vertically foldable, are connected to the front and rear edges of the bottom frame 2 so that they can stand and fall sideways. That is, the front frame 13 and the rear frame 14 are each divided into an upper frame portion 15A and a lower frame portion 15B, and a coil-shaped first connecting tool is provided between the edges of the both frame portions 15A and 15B facing each other.
By connecting via 16, it is formed so that it can be folded up and down freely. Further, by connecting the lower end edge of the lower frame portion 15B and the front and rear end edges of the bottom frame 2 via the coil-shaped second connecting member 17, the lower frame portion 15B, that is, the front frame 13 and the rear frame 14 is connected. Can be erected and laid on its side. Here, the connection by the second connecting tool 17 is performed at a position outside the connecting portion 12.

The front frame 13 and the rear frame 14 are located between the bent portions 3A when they are erected, and at this time, the lower frame portion 15B.
Notches 18 are formed on both sides of the lower part to prevent interference with the bracket 4. Both sides of the frame 3
In order to connect the front frame 13 and the rear frame 14 to each other (8 in total) between the opposite edge portions of the bent portion 3A of the side frame 3 and the upper frame portion 15A and the lower frame portion 15B. Tool 19
Is provided. These locking members 19 are of the Kannuki type in which the main body is arranged on the front frame 13 and the rear frame 14, and their operating rods are
19A can be engaged with and disengaged from the engaged portion of the bent portion 3A. As a result, the side frame 3 and the front frame 13 and the rear frame 14 can be connected to each other by the locking device 19 while avoiding the corners.

Legs 20 are provided on both sides of the base body 1 from the front and rear.
And a groove-like fitting portion 21 whose bottom surface is open and which extends in the front-rear direction is formed on the lower portion of the leg body 20 on the outer side in the left-right direction. Then, in the assembled state, the upper part of the side frame 3 is fitted from above through the fitting part 21 so as to be stackable. Further, a landing body 22 made of an angle member is formed inward in the left-right direction at a position slightly lower than the fitting portion 21. These legs 20, as shown in FIG.
The distance between the inner side surfaces facing each other on the left and right, that is, the distance W ₂ between the inner side surfaces of the landing body 22 is smaller than the left and right width W _{3 of the} front frame 13 and the rear frame 14, and is located outside the lateral lower end surface 3a of the side frame 3. ,
It is vertically erected between the front and rear brackets 4.

The operation of the above structure will be described below.
FIG. 1 shows a ready-to-use carrier container 25 that has been assembled. Here, in the assembling, first, the side frame 3 in a state in which the side frame 3 is laid down on the bottom frame 2 as shown by a virtual line a in FIG.
As shown by the phantom line (2), it stands up around the front-back direction pin 9, and further, as shown by the phantom line in FIG. 5, the engaging portion 6C of the connecting body 6 is engaged with the wire rod 2A of the bottom frame 2 from below. Thus, the side frames 3 can be tilted outward from the standing posture by a predetermined angle, and the tilted posture can be maintained by the engagement structure.

Next, the lower frame portions 15B of the front frame 13 and the rear frame 14 are erected with the second connecting members 17 as fulcrums, and the upper frame portions are
15A is erected with the first connector 16 as a fulcrum. At that time, since the both side frames 3 are inclined outward by a predetermined angle, they can be easily erected. After that, as shown by the solid line in FIGS. 5 and 7, the side frames 3 are removed by removing the engaging portions 6C from the wire 2A.
It stands up in parallel with each other via the connecting portion 12.

Here, the side frame 3 is erected so that the hanging part 6B of the connecting body 6 is projected from above between the wire rods 2A of the bottom frame 2 so that the front-rear direction pin 9 is located at the upper end of the elongated hole 7 and the lower end surface thereof. It is performed in a state in which 3a is brought into contact with the bottom frame 2, so that the sideways fall is prevented. And the lower frame portion 15 of the front frame 13 and the rear frame 14
B is connected to the bent portion 3A via a locking tool 19, and the upper frame portion 15A is connected to the bent portion 3A via a locking tool 19.

Transport container in such an assembled state
The reference numeral 25 indicates that the bent portions 3A of the both side frames 3 are present and are connected by the locking members 19 while avoiding the corner portions.
Therefore, the assembled transport container 25 has the bent portion 3
Due to the presence of A, the strength of the corner portion can be sufficiently secured, and the rounded shape of the corner portion makes it look good and is hard to be caught by other objects.

The above-mentioned transport container 25 is composed of frames 2, 3, 13, 14
An object to be transported can be stored in the storage space formed by. At that time, the object to be transferred into and out of the storage space is connected to the first connecting member 16 or the second connecting member by connecting the upper frame portion 15A and the lower frame portion 15B to each other by using the release portion on the upper surface or by releasing the locking member 19. It can be done by lying sideways with tool 17 as a fulcrum,
At that time, the both side frames 3 may be tilted outward from the standing posture by a predetermined angle as needed. Since each of the frames 2, 3, 13 and 14 has a mesh plate shape (mesh shape), the stored object can be easily seen and checked, and the object can be drained easily.

The carrying container 25 is landed via the landing body 22 of the leg 20 and can be carried by a forklift by operating a fork in the space between the legs 20. Further, as shown by the phantom line in FIG. 7, by fitting the fitting portion 21 of the leg 20 of the upper transport container 25 from above onto the upper edge of the side frame 3 of the lower transport container 25, the stacks are sequentially stacked in multiple stages. Can be done. At that time, the lower transportation container 25 supports the load of the upper transportation container 25 via the side frame 3. At this time, the side frame 3 has a groove shape in a plan view due to the presence of the bent portion 3A, and the bottom frame 2 Since it is in contact with, it will be in a stable standing posture and can be safely supported by stacking.

When the transportation container 25 as described above is folded,
First, the locking tool 19 is removed, and as shown in FIGS. 2 and 3, the upper frame portion 15A is folded outward with the first coupling tool 16 as a fulcrum, and is stacked on the outer surface of the lower frame portion 15B. 2 The lower frame 15B is folded inward with the connecting member 17 as a fulcrum, and overlapped on the bottom frame 2. Next, as shown in FIG. 4, both side frames 3 are folded inward with the connecting portion 12 as a fulcrum, and the bent portion 3A is bent.
The desired folding is completed by bringing the above into contact with the upper frame portion 15A.

Here, the folding of the side frames 3 is first performed by the side frames 3.
Is pulled up and the hanging part 6B of the connecting body 6 is pulled out upward between the wire rods 2A of the bottom frame 2, and the front-back direction pin 9 is used to form the long hole 7
Located at the bottom edge of. In this state, the side frame 3 is laid inward with the front-rear direction pin 9 as a fulcrum, and the bent portion 3A is brought into contact with the upper frame portion 15A. Then, the side frame 3 in the sideways lying position is moved slightly outward. Then, as shown in FIG. 8, the engagement step portion 8 can be engaged with the front-rear direction pin 9. This engagement action can prevent the side frame 3 in the laterally tilted position from being displaced in the left-right direction. At this time, the lateral lower end surface 3a of the side frame 3
Are located inside the side surfaces 13a, 14a of the front frame 13 and the rear frame 14.

As shown in FIGS. 8 and 9, the transportation container 25 folded in this way is provided with the upper frame portion 15A of the lower transportation container 25.
By placing the landing body 22 of the leg body 20 in the upper transport container 25 on the top, it is possible to sequentially stack them. In that case, the lower transportation container
Since the leg 20 of the upper transport container 25 is located outside the lateral lower end face 3a of the folded side frame 3 of 25, the displacement of the upper transport container 25 in the left-right direction is a leg relative to the lower end face 3a. Blocked by abutment of 20. Further, since the leg 20 is located between the front and rear brackets 4, the displacement of the upper transport container 25 in the front-rear direction is prevented by the contact of the leg 20 with the bracket 4. Due to these things, the folding transport container 25
Stacking can be performed stably without displacement in the left-right direction or the front-back direction.

As in the above-described embodiment, when the engaging portion 6C that engages with the bottom frame 2 side when the side frame 3 is tilted outward from the standing posture by a predetermined angle is formed in the lower portion of the connecting body 6,
The side frame 3 can be tilted outward by a predetermined angle and maintained, the front frame 13 and the rear frame 14 can be easily connected to each other by the fasteners 19, and the carried object can be easily carried in and out. It can be carried out.

As in the above-mentioned embodiment, the connecting member 6
In the vertical direction, an elongated hole 7 in the up-down direction and an engaging step portion 8 which communicates with the lower portion of the elongated hole 7 and bulges outward are formed. When it is configured to engage the front-rear direction pin 9 from above, the engaging action causes
It is possible to prevent the position of the side frame 3 that has fallen sideways from shifting in the left-right direction.

Further, as in the above-described embodiment, the front frame 13 and the rear frame 14 are formed with notches 18 on both lower sides to prevent interference with the bracket 4. The height H protruding above the upper surface of 14 is set to the side frame 3
The lateral lower end surface 3a of the front side surface 13a, 14a of the front frame 13 and the rear frame 14
It is configured to be located on the inner side of the bottom frame 2, and at the bottom of the bottom frame 2, the left and right inner side surface distances W ₂ are the width W of the front frame 13 and the rear frame 14.
Legs 20 that are smaller than ₃ and are located outside the lateral lower end surface 3a of the side frame 3 and between the front and rear brackets 4
By vertically arranging, the upper transport container 25 can be prevented from being displaced in the left-right direction and the front-back direction when stacking in a folded state.

In the above embodiment, the rectangular bracket 4 is used.
And a notch 18 along it, which is a triangular bracket 4 whose center in the width direction is inclined,
The notch 18 along it may be used. Also bracket 4
In contrast to this, the connecting body 6 is opposed from the inside, but this may be a type in which it is opposed from the outside. Further, the connecting portion 12 may be located outside the bent portion 3A, and the bent portion may be formed on the front frame 13 or the rear frame 14 side. The front frame 13 and the rear frame 14 may be a single piece instead of the center-folded shape. The side frame 3 may be connected by an ordinary coil-shaped connecting tool without using the bracket 4 and the connecting body 6, and in this case, the cutout portion 18 is not necessary. Further, the engaging portion 6C for the wire 2A of the bottom frame 2 may be omitted.

Next, a second embodiment of the present invention will be described with reference to FIGS.

In FIG. 10, the bottom frame 2 laid on the base body 1 is provided with a long concave portion 2B which extends inward from the rear edge thereof. A pair of left and right side frames 3 which can stand upright on both sides of the bottom frame 2 integrally have a bent portion 3A. The front frame 13 which can be freely positioned between the bent portions 3A at the front of the side frames 3 has a rectangular shape and is divided into an upper frame portion 15A and a lower frame portion 15B. Also, the bent portion 3A at the rear of the side frame 3
The rear frame 14 which can be freely positioned is a rectangular one piece, and integrally has a bottom frame portion 14A bent forward from the lower edge portion thereof.

A coil-shaped third connecting tool is provided between the side edges of the rear frame 14 and the side edges of the bent portion 3A at the rear of the side frame 3.
By connecting via the side frame 30, the both side frames 3 can freely swing to the left and right with respect to the rear frame 14. The bottom frame portion 14A can be fitted into the recess 2B of the bottom frame 2, and by connecting the front edge of the bottom frame portion 14A to the back edge of the recess 2B via the coil-shaped fourth connector 31. The rear frame 14 can be erected sideways with respect to the bottom frame 2. Then, in order to connect the both side frames 3 and the front frame 13 which are erected, a total of four locking members 19 are provided.

The operation of the second embodiment will be described below. FIG. 10 shows the carrier 25 ready for use with its intended assembly. Here, the rear frame 14 is the fourth connector 31.
Is erected with the fulcrum as the fulcrum, and the side frames 3 are connected to the third connector 30.
Is oscillated forward with respect to the fulcrum and is erected in a state of being parallel to each other. Further, the front frame 13 is erected with the first connecting tool 16 and the second connecting tool 17 as fulcrums, and is bent through a locking tool 19. It is connected to 3A.

In this state, each frame 2, 3, 13, 14
An object to be transported can be stored in the storage space formed by. At that time, the object to be transferred into and out of the storage space is connected to the first connecting member 16 or the second connecting member by connecting the upper frame portion 15A and the lower frame portion 15B to each other by using the release portion on the upper surface or by releasing the locking member 19. This can be done by turning the tool 17 over as a fulcrum. Then, the transport container 25 is landed via the landing body 22 of the leg body 20,
Further, by operating the fork in the space between the legs 20, the forklift can transport the fork.

Further, by fitting the fitting portion 21 of the leg 20 of the upper carrying container 25 to the upper edge of the side frame 3 of the lower carrying container 25 from above, stacking can be carried out in a plurality of stages in sequence. At that time, the lower transportation container 25 is transferred to the upper transportation container via the side frame 3.
Since the side frame 3 is in contact with the bottom frame 2 in a groove shape in a plan view due to the presence of the bent portion 3A, the side frame 3 has a stable standing posture,
Support by stacking can be done safely.

When folding the transport container 25 as described above,
First, the locking tool 19 is removed, and as shown in FIG. 11, the first connecting tool 16
The upper frame 15A is folded outward with the fulcrum as a fulcrum and the lower frame is
The lower frame portion 15B is folded inward with the second connecting member 17 as a fulcrum and overlapped on the bottom frame 2 as well. Next, as shown in FIG. 12, the both side frames 3 are folded backward (swing) with the third connector 30 as a fulcrum so as to face the rear frame 14 in parallel.

Then, as shown in FIGS. 13 to 15, the rear frame 14 is folded forward together with the side frames 3 with the fourth connecting member 31 as a fulcrum, and the side frame 3 is superposed on the upper frame portion 15A. Finish folding the period. Here, the dimension of the bottom frame portion 14A in the front-rear direction (vertical direction when folded) is determined by superposing the lower frame portion 15A.
The total thickness of B, the upper frame portion 15A, and the side frame 3 is set to be substantially equal.

As shown in FIG. 16, the folded transportation container 25 can be sequentially stacked by placing the landing body 22 of the leg 20 of the upper transportation container 25 on the bottom frame 2 of the lower transportation container 25. . At that time, the folded frames 3, 13, of the lower carrying container 25,
Positioning the legs 20 of the upper transport container 25 on both sides of the 14th group can prevent lateral displacement.

As in the second embodiment described above, the side frame 3
Has an integrally formed bent portion 3A bent in the opposite direction from its front and rear edges, and a front frame 13 which can be freely positioned between the bent portions 3A of the front portion can be vertically bent in the middle, and its lower portion is bottomed. Frame 2
In addition, the rear frame 14 which is connected to the upright and laterally foldable via the second connecting member 17 and can be positioned between the rear bent portions 3A has the side edge thereof bent to the bent portion 3A and the third connecting member 30. The rear frame 14 has a bottom frame portion 14A integrally bent leftward and rightward, and is bent forward from its lower edge portion. The front edge of the bottom frame portion 14A When the side frames 3 of the assembled transporting container 25 are connected to each other via the four connecting members 31 so as to be upright and sideways, the bottom frame 2 has a groove shape in a plan view due to the presence of the bent portion 3A.
Since it comes into contact with the pedestal, it can be in a stable standing posture, and the folded transportation container 25 can be mounted on the bottom frame 2 of the lower transportation container 25 and outside the legs 20 on both sides of the folded frames 3, 13, and 14 groups. By mounting, it is possible to prevent the positional displacement in the left-right direction and stack them sequentially.

[0045]

According to the first invention of the above construction, the rear frame is
Stand up with the fourth connector as a fulcrum, and set both side frames to the third.
Swing forward with the connector as a fulcrum and parallel to each other
In a standing state, and further the front frame is connected to the first connecting member and the second connecting member.
By raising the connector as a fulcrum , the transport container can be assembled so that it can be used, and the desired operation can be performed by the reverse operation. Due to the presence of the bent part, the assembled transport container can ensure sufficient corner strength and can be stacked stably, and the front frame is laid sideways with respect to the bottom frame in the stacked state. It is possible to provide a transport container that can be brought into a stable state even when it is used and can easily perform order picking work. Further, the corner portion can be formed into a shape that looks good and is hard to be caught by other objects due to its rounded shape.

[0046] Further, according to the second invention, stacking of carrier container folded folding, by placing the leg of the upper transportation container on the bottom frame of the lower transportation container main part is deformed by vibration load It can be performed stably without doing. Furthermore, during stacking, since the legs of the upper-level transport container are located outside both sides of the folded frame group of the lower-level transport container, the lateral misalignment of the upper-level transport container should be corrected by the contact of the legs with the frame group . It can be stopped by contact. As a result, it is possible to prevent the upper transport containers from being displaced in the lateral direction during stacking in the folded state, and thus it is possible to maintain stable stacking against lateral vibration.

Further, according to the third invention, the assembled luck
Stacking of transport containers is done on the side of the lower transport container that has been erected.
Fit the legs of the upper transport container to the top of the frame from above.
You can do that.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention when a transportation container is assembled.

FIG. 2 is a perspective view of the transportation container when the front frame is folded.

FIG. 3 is a perspective view when a rear frame of the transportation container is folded.

FIG. 4 is a perspective view of the transportation container when it is completely folded.

FIG. 5 is a partially cutaway front view of the connecting portion.

FIG. 6 is a partially cutaway side view of the connecting portion.

FIG. 7 is a front view showing a swinging state of the side frame.

FIG. 8 is a front view showing a stacked state of the folding transport container.

FIG. 9 is a side view showing a stacked state of the folding transportation container.

FIG. 10 is a perspective view showing the second embodiment of the present invention when the transport container is assembled.

FIG. 11 is a perspective view of the transportation container when the front frame is folded.

FIG. 12 is a perspective view when the side frame of the transportation container is folded.

FIG. 13 is a perspective view of the transportation container when it is completely folded.

FIG. 14 is a side view of the transportation container when it is completely folded.

FIG. 15 is a plan view of the transportation container when assembled.

FIG. 16 is a front view showing a stacked state of the folded transportation containers.

[Explanation of symbols]

1 Base body 2 Bottom frame 2A Wire rod 2B Recess 2a Front / rear surface 3 Side frame 3A Bending part 3a Lower end surface 4 Bracket 5 Recess 6 Connector 6A Projection 6B Hanging part 6C Engagement part 7 Long hole 8 Engagement step 9 Anteroposterior direction Pin 12 Connecting part 13 Front frame 13a Side surface 14 Rear frame 14a Side surface 14A Bottom frame part 15A Upper frame part 15B Lower frame part 18 Notch part 19 Locking tool 20 Leg 25 Transport container 30 Third connecting tool 31 Fourth connecting tool H Height of bracket W ₂ Distance between inner surfaces of legs W ₃ Left / right width of front / rear frame

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 88/12

Claims (3)

(57) [Claims] 1. A pair of left and right side frames that can stand upright are provided on a bottom frame, and these side frames integrally have bent portions bent in opposite directions from their front and rear edge portions, and the front portion is bent. The front frame that can be freely positioned between the parts is vertically foldable through the first connecting tool, and the lower part of the front frame is connected to the bottom frame by the second connecting tool so that it can be erected and laid down horizontally, and between the bent parts of the rear part. The side edge of the rear frame freely positionable on the rear frame is connected to the bent portion of the rear via the third connecting tool, so that both side frames can be swung left and right with respect to the rear frame. A foldable transport container, which is connected upright and laterally via a connecting tool. 2. A leg is hung vertically at the bottom of the bottom frame.
On both sides of the frame group folded on the bottom frame of the lower transport container
The foldable transport container according to claim 1, wherein the legs of the upper transport container are configured to be freely placed . 3. The rear frame is bent forward from its lower edge.
Has an integrated bottom frame, and the front edge of this bottom frame is the bottom frame.
Standing upright on the bottom frame by connecting upright and sideways via 4 connectors
The foldable transport container according to claim 1 or 2, wherein a leg body that can be fitted from above is provided on an upper portion of the side frame.