JPH0356527Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is a foldable container, more specifically, used for transporting cargo within a factory or to another location such as another company's factory. The present invention relates to a foldable container in which a plurality of shelf boards disposed inside the container body can be raised and lowered extremely easily.

(Prior art) Conventionally, this type of foldable container was
There is a prior art disclosed in Japanese Utility Model Application No. 180522/1988 (Application No. 70441/1988) which has already been developed by the applicant.

That is, this foldable container
As shown in the figure, a pair of protrusions 3 are provided on the rear side of both sides.
A plurality of shelf boards 36 in which protrusions 8 and 38 are provided, and guide holes 27b into which the protrusions 38 of the shelf boards 36 can be inserted are bored at equal intervals in the rear frame 20 of both side plates 8 and 8, and The container main body 1b has a pedestal 43 protruding from the front frame 19 to correspond to the position of the hole 27b, and the protruding body 3 of the shelf board 36
8 into the guide holes 27b of the side plates 8, 8,
Each shelf board 36 is disposed within the container body 1b by supporting the tip end of the shelf board 8 on a pedestal 43.

(Problems to be Solved by the Invention) However, in the conventional foldable container described above, when the shelf board 36 is repositioned in order to fold the container body 1b or assemble it, the shelf board 36 is The protruding body 38 must be pulled out from the container body 1b, and the shelf board 3
The work of pulling out and inserting the shelf board 6 is large-scale and troublesome, and additional space must be taken up to pull out the shelf board 36, resulting in a waste of work space.

The present invention has been devised in view of the above-mentioned problems, and its purpose is to allow shelf boards to be raised and lowered to change their positions with extremely easy operation without having to pull them out from inside the container body.

(Means for Solving the Problems) The present invention has been devised to achieve the above object and also to solve the problems of the conventional technology. In a foldable container comprising a plurality of shelf boards 36 on which protrusions 38, 38 are provided to protrude outward, and a container main body 1 in which both side boards 8, 8 can be folded, the inner surfaces of the both side boards 8, 8 are foldable. A plurality of pairs of horizontal plates 23, 23 are provided along the horizontal plate, and a pantograph mechanism 22 is provided extendably and retractably connected to each horizontal plate 23 so that the pair of horizontal plates 23, 23 can be raised and lowered freely. Guide holes 2 are provided in the plates 23, 23.
7, 27 are bored, and the horizontal plate 2
By inserting the protrusions 38 and 38 of the shelf board 36 into the guide holes 27 and 27 of 3 and 23, respectively, the shelf board 36 is supported in the container body 1 so as to be able to move up and down.

(Function) Therefore, in the foldable container characterized by the above configuration, each shelf board 36 can be easily raised and lowered by the pantograph mechanism 22,
Therefore, when the container is folded, each shelf board 36 can be stored in the lower half of the container body 1 by simultaneously lowering and storing each shelf board 36 without taking out the shelf board 36. Further, each of the shelf boards 36 stored in the lower body can be raised simultaneously, and in any case, each shelf board 36 can be raised and lowered with a single touch.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

Figure 1 is an overall schematic perspective view of the container body 1 with all shelf boards removed. In the figure, 2 is a bottom frame with casters 3 rotatably attached to four locations on the back side, and 4 is a back plate. , the upper half can be folded back via the pivot portion 5. Reference numeral 6 indicates a cylindrical body provided on both sides of the upper end of the inner surface of the back plate 4, and 7 indicates a lock bar fitted into the cylindrical body 6 so as to be freely retractable in the lateral direction.

8, 8 are both side plates, upper half body 9 and lower half body 10 respectively.
The upper half body 9 can be folded back via a hinge portion 11. Note that the hinge portion 11
As shown in FIG. 2, a connecting body 12 protruding downward from the center of the lower edge of the upper half 9 is connected to a fitting fitting formed in a concave shape at the center of the upper edge of the lower half 10. A long hole 14 fitted between the frames 13 and 13 and bored in the fitting frame 13 and the connecting body 1
The support shaft 16 is passed through the hole 15 drilled in 2,
It is constructed by interposing a spring 17 between the support shaft 16 and the lower half body 10. Reference numeral 18 denotes both front and rear frames 19 of the lower half body 10 of the side plates 8.
A fitting body 18 is shown projecting upward from the upper end of the upper half body 9, and the fitting body 18 can be fitted into the lower end portions 19b, 20b of both the front and rear frames of the upper half body 9. 21 is the front frame 19a, 1 of the both side plates 8;
A plurality of locking holes are shown in the inner surface of the pantograph 9b, and five of the locking holes 21, 21, . . . correspond to the positions of guide holes (described later) when the pantograph mechanism is in an extended state. Further, a locking hole 21 is also formed in the upper end portion of the rear frame 20b.

Reference numeral 22 indicates a pantograph mechanism that is extendable and retractable along the inner surfaces of the side plates 8, and 23 indicates arms 24 of the pantograph mechanism 22 that intersect in an X-shape.
Five horizontal plates are shown supported horizontally by pins 25 at both ends of the plate, and the front pin 25a is slidably inserted into a long hole 26 formed in the horizontal plate 23. Reference numeral 27 indicates a substantially V-shaped guide hole bored in the rear side of the horizontal plate 23, and the guide hole 27 has a long horizontal portion 28 on the front side and a short inclined portion 29 on the rear side. That's what I'm saying. Note that the horizontal portion 28a of the uppermost guide hole 27a is short. Reference numerals 30 and 31 indicate horizontal rods installed horizontally at both ends of the lowermost end of the arm 24 of the pantograph mechanism 22, and both ends of the front horizontal rod 30 are formed on the inner surface of both sides of the bottom frame 2 and have long grooves 32. The inside is slidable, and the rear horizontal rod 31 is rotatably held by a fixed body 33 provided on the bottom frame 2. Reference numeral 34 denotes a plurality of protrusions hanging downward from the rear horizontal rod 31, and 35a, 35b... are interposed on each side of the protrusions 34 and the front edge of the bottom frame 2, three each. The outer two springs 35 are shown as springs.
a, 35a... One end is hooked to a connecting piece 43 that is pivoted to the projecting piece 34, and the other end is a bolt 45 screwed to the connecting member 44 of the bottom frame 2.
It becomes stuck. Also, the inner spring 35
One end of b, 35b is directly hooked to the protruding piece 34, and the other end is hooked to the connecting member 4 of the bottom frame 2.
It is hung by a bolt 45 screwed into 4. Then, the third spring 35a, 35b...
As shown in the figure, a rotational force acts on the rear horizontal bar 31 in the A direction through the protruding piece 34, causing the arm 24 connected to the horizontal bar 31 to rise.

FIG. 4 is a perspective view of the tray-shaped shelf board 36, in which the guide holes 2 of the horizontal board 23 are provided at the rear ends of both side surfaces 37.
Two protrusions 38, which can be inserted into each of the two protrusions 7, protrude outward. Further, the tip surface 3 of the shelf board 36
A lock bar 7 is provided at both ends of the lock bar 9 so as to be freely retractable in the lateral direction. Reference numeral 40 indicates a plastic cardboard sheet laid on the upper surface of the shelf board 36.

Then, with the protrusions 38 of the five shelf boards 36 inserted into the guide holes 27 of the horizontal board 23,
As shown in FIG. 5, each shelf board 36a to 36e is arranged within the container body 1. As shown in FIG.

The container of this example has the above configuration,
Next, a case in which this container 41 is used will be explained.

In this container 41, products are stored and placed on the other four shelf boards 36 except for the top shelf board 36e serving as a top plate, and in this state, the container 41 is transferred to a predetermined location.

After the container 41 is transferred, each shelf board 36
First, the lock bars 7 provided on both sides of the front end surface 39 of the top shelf board 36e are attached to the front frame 19 of the container body 1.
b from the locking hole 21, and as shown in FIG.
The shelf board 36e is moved to the inclined parts 29, 29 of the substantially square guide holes 27, 27 bored in the shelf board 36e, and the shelf board 36e is tilted upward, and in this state, the lock bar of the second shelf board 36d from the top is 7 from the locking hole 21, and the protruding body 38 is inserted into the horizontal part 2 of the guide hole 27.
8, pull out the front of the shelf board 36d, and take out the product 42 placed thereon. As a result, the upper part of the shelf board 36d is wide open, making it easier to take out the products 42. After taking out the product from the shelf board 36d, the shelf board 36d is tilted in the same manner as described above, and the shelf board 36c below it is pulled out at the front, the product 42 is taken out, and the shelf board 36c is also tilted. ,
In this way, the products are taken out in order from the upper shelf board 36.

After taking out the product, since the empty container 41 is noble, the container 4
1, but at this time, the bottom shelf board 3
Since the other shelf boards 36 except for 6a are inclined upward, the protrusions 38 of these shelf boards 36,
38 from the inclined portions 29, 29 of the guide holes 27, 27 to the horizontal portions 28, 28 to make each shelf board 36a to 36e horizontal as shown in FIG. 36e is lowered while holding it down by hand. At this time, as shown in FIG. 7, while moving the front pin 25a, which has the horizontal plate 23 supported by the pantograph mechanism 22, to the tip side of the long hole 26 of the horizontal plate 23, the pantograph mechanism 22 moves the spring 35 It will shrink while resisting the urging force of.

After storing each shelf board 36 in the lower half body 10 of both side boards 8, the lock bar 7 provided on the back board 4 is inserted into the locking hole 20 of the rear frame 20b of both sides 8.
Then, fold the upper half of the back plate 4 into the container body 1 via the pivot joint 5, and then lift the upper half 9 of both side plates 8 against the spring 17, and fold the upper half 9 of the upper half 9. Both front and rear frames 19b, 20b
is removed from the insert body 18 of the lower half body 10, and the left and right upper halves 9 are folded into the container body 1 via the hinge portions 11.

As a result, the height of the container body 1 can be halved as shown in FIG. 8, and the container 41 can be made extremely compact after use.

In addition, when assembling this folded container 41 for use, contrary to the above, the upper half 9 of the side plates 8 is erected and then lifted, and the upper half 9 of the upper half 9 is lowered onto both the front and rear frames 19b, 20b. half body 10
Then, the upper half of the back plate 4 is put up, and the lock bar 7 of the back plate 4 is engaged with the locking hole 21 of the rear frame 20b of both side plates 8, and the back plate 4 is fixed. It is fixed. Then, lift the topmost shelf board 36e to position it at the upper end of the container body 1, open each shelf board 36 at equal intervals, and lock the lock bar 7 of each shelf board 36 between the front frames 19a, 19b of the side boards 8. The shelf plate 36 is fixed by engaging the locking hole 21. When lifting this shelf board 36, the arm 24 of the pantograph mechanism 22 is biased by the spring 35 and rises.

Therefore, in the container of this embodiment, a telescopic pantograph mechanism 22 is provided along the inner surfaces of both side plates 8, 8 of the container body 1, and a plurality of horizontal plates 23 are provided in the pantograph mechanism 22. By connecting the shelf boards 36 at intervals and inserting the protrusions 38 of each shelf board 36 into the guide holes 27 formed in the horizontal board 23, each shelf board 36 is connected to the container body 1.
Each shelf board 36
The lifting and lowering operations can be easily performed by expanding and contracting the pantograph mechanism 22.

Further, a plurality of protrusions 34 are provided vertically on a rear horizontal rod 31 installed horizontally at the lowermost end of the arm 24 of the pantograph mechanism 22, and the protrusions 34 and the front edge of the bottom frame 2 are connected to each other. Since the spring 35 is interposed, the contraction force of the spring 35 exerts a rotational force on the horizontal rod 31 through the protruding piece 34 as shown in FIG. When the arms 24 connected to each other try to stand up, each arm 24, 24, .
can be easily lifted up, and the lifted shelf board 36 can be maintained in that state without being locked in any way.

Further, the horizontal plate 23 is provided with a substantially rectangular guide hole 27 having a long horizontal portion 28, and a pair of protrusions 38 on both sides 37 of the guide hole 27, Shelf board 36 with 38 inserted
is supported by the horizontal plate 28, by moving the protruding body 38 to the inclined portion 29 of the guide hole 27, the shelf plate 36 can be held in an upwardly inclined state with the tip side facing upward, and the protruding body 38 can be held in an upwardly inclined state. The shelf board 36 can be pulled out to the front side by moving it toward the tip of the horizontal part 28 of the guide hole 27, and by tilting the shelf board 36 and pulling it out,
The product 42 can be easily placed on the shelf board 36 or the product 42 can be easily taken out from the shelf board 36.

In addition, the guide hole drilled on the rear side of the horizontal plate is
The hole is not limited to the substantially rectangular shape of the above embodiment, but may be a straight long hole. Further, guide holes may be formed in both the front and rear parts of the horizontal plate, and in this case, there is no need to provide a lock bar on the front end surface of the shelf board.

Furthermore, in the above embodiment, the X of the pantograph mechanism
In order to support the horizontal plate with pins at both ends of the crossed arms, the rear pin is pivotally supported by the horizontal plate, and the front pin is slidably inserted into the long hole of the horizontal plate. This allows the pantograph mechanism to move up and down in the vertical direction without tilting; however, the present invention is not limited to this, and the pins on both the front and back sides may be inserted into long holes drilled in the horizontal plate. ,
In this case, guide grooves for vertically guiding the pins provided at the intersections of the arms may be formed in the longitudinal direction of the central portion of the inner surfaces of both sides.

In addition, the attachment/detachment structure and folding structure of the upper and lower halves of both side plates are not limited to those of the above embodiment.
In short, it suffices to have a structure in which both side plates are divided into two and folded.

(Effects of the invention) As described above, the foldable container of the present invention has a plurality of pairs of horizontal plates that can be raised and lowered via a pantograph mechanism along the inner surfaces of both sides of the container body, and Since the shelf board is supported by the guide hole, the shelf board can be easily raised and lowered by the pantograph mechanism. This eliminates the troublesome work of removing the container from the guide hole provided and then repositioning the shelf board, and even when folding the container body after discharging the product.
Alternatively, even when assembling a folded container body, the shelf board can be easily raised and lowered, resulting in a special effect of extremely improved workability.

In addition, since each shelf board can be raised and lowered within the container body without having to pull it out from the container body, there is no need to prepare a space in front of the container body to pull out the shelf boards as in the past, resulting in wasted work space. It also has the effect of being able to delete .

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of the container main body as an example, with all shelf boards removed. FIG. 2 is a perspective view showing the hinge portions of both side plates of the container body. FIG. 3 is a side view of the main parts showing the pantograph mechanism. FIG. 4 is a perspective view showing the shelf board. FIG. 5 is a partially cutaway side view of the main part of the container with the pantograph mechanism extended. FIG. 6 is a partially cutaway side view of the main part of the container with the shelves tilted. FIG. 7 is a partially cutaway side view of the main part of the container with the pantograph mechanism retracted. FIG. 8 is a perspective view of the container in a folded state. FIG. 9 is a schematic perspective view showing a conventional container. 1... Container body, 4... Rear plate, 8...
Both side plates, 22... Pantograph mechanism, 23... Horizontal plate, 27... Guide hole, 36... Shelf board, 37...
...Both sides, 38...Protruding body.

Claims (1)

[Claims for Utility Model Registration] 1. A plurality of shelf boards 3 having at least one pair of protrusions 38, 38 protruding outward from both side surfaces 37, 37.
6 and a container body 1 with foldable side plates 8, 8, a plurality of pairs of horizontal plates 23, 23 are provided along the inner surfaces of the side plates 8, 8, and the pair of horizontal plates 23, 23 are provided along the inner surfaces of the side plates 8, 8. A pantograph mechanism 22 is extendably connected to each horizontal plate 23 so that the horizontal plates 23, 23 can be raised and lowered, and guide holes 27, 27 are bored in the horizontal plates 23, 23, Moreover, the shelf board 36 is supported in the container body 1 so as to be able to rise and fall by inserting the projections 38, 38 of the shelf board 36 into the guide holes 27, 27 of the horizontal boards 23, 23, respectively. Foldable container. 2. The collapsible container according to claim 1, wherein the guide holes 27, 27 are substantially oval-shaped long holes consisting of a horizontal portion 28 and an inclined portion 29.