JPS5846981Y2 - Collapsible container for powder - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a collapsible container used for transporting and storing powder.

When powder is stored as is in a collapsible container, the powder leaks from the joints between the side plates and the bottom plate, and between the side plates and the side plates, so it must be stored in an airtight bag, which causes problems in terms of handling such as discharge. A suitable, returnable container is a flexible container made of canvas cloth or the like whose bottom opening can be tightened to prevent powder from leaking and to allow easy discharge.

However, flexible containers cannot be transported or stored by being stacked as they are, and require a large storage area.When stacking flexible containers, a lattice-like shelf is constructed, and pallets placed on each shelf are stacked. This has the disadvantage that handling is inconvenient, and transportation costs, storage costs, etc. are high.

The present invention uses a conventional collapsible container to prevent powder from leaking and allows it to be stored, as well as to allow the powder to be easily discharged from the bottom, allowing for transportation and storage of powder.
The present invention provides a foldable container suitable for storage and handling.

The present invention enables the bottom plate of a foldable container to be pivoted downward around one side of the bottom frame, has a side surface in contact with the assembled inner wall of the container, has an open end narrowed at the lower end, and has an open end. By providing a collapsible bag-like body whose end peripheral wall surface is in surface contact with the bottom plate surface, powder can be stored and discharged.

An embodiment of the present invention will be explained based on the drawings.
．． Back plate 2. The left side plate 3 and the right side plate 4 are wire mesh plates made of strong steel wire, and the front plate 1 is rotatably attached to the upper front edge of the upper surface of the bottom frame 5 via a spiral coil 6.
The back plate 2 is similarly attached to the upper rear edge of the upper surface of the bottom frame 5 via a spiral coil 6'.

Further, the side edge of the left side plate 3 is rotatably attached to the left side edge of the back plate via a spiral coil 7, and the side edge of the right side plate 4 is rotatably attached to the right side edge via a spiral coil 7'. ing.

The wall height of the bottom frame 5 is set such that at the front edge, a bag-like body 15, which will be described later, can be folded backward together with the front plate and accommodated in the bottom frame, and at the rear edge and side edges, both left and right plates can be folded inward. They are designed so that the items stacked on the back plate are folded forward and stacked on the front plate that was folded first.

Note that the connection between the bottom frame, the front plate, and the back plate, and the connection between the back plate and the left and right side plates are not limited to spiral coils, and may be made using oval rings at appropriate intervals, for example.

In addition to the present embodiment shown in Figure 2A, the back plate and the left and right side plates can be installed by folding the side plates that have a part of the corner to a length corresponding to the thickness, as shown in the opening of the figure. It may also be rotatably coupled to the back plate at a position closer to the inside.

Next, the bottom plate 8 is made of a metal plate or plywood with reinforced peripheral edges, and as shown in FIG. As a result, the bottom plate 8 is crimped to the bottom surface of the bottom frame 5.

The acting force of the spring is restored by the bottom plate rotated downward,
It is adjusted so that it is lightly pressed against the bottom surface of the bottom frame.

A bottom plate lock fitting 10 is attached to the front edge of the bottom frame 5,
As shown in FIG. 4, this bottom plate lock fitting has an engaging claw 1
1 is engaged with the edge of the bottom plate, and when the lever 12 is pushed downward, the engagement rod 13 rotates around the support shaft, the engagement between the bottom plate and the engagement claw is released, and the bottom plate is a bag-shaped body 15 which will be described later.
It opens downward due to the weight of the powder filled in the container, and when the powder has finished flowing out, the spring action of the spring-loaded hinge 9 causes the powder to open downward.
Rotating in one direction, the end surface of the bottom plate and the engaging pawl 11 are re-engaged by the action of the push spring 14.

Bag-like body 15 to be placed inside the assembled box-like container
has the shape shown in FIG. 5 and is inscribed in the inner wall of the container, and its height is greater than the length from the top edge to the bottom plate.

The lower wall portion 16 is inclined toward the center of the bottom plate 5, and the degree of inclination can be determined depending on the angle of repose of the powder to be filled.

Moreover, since it is an inclined surface, this part can be prevented from being pinched between the bottom plate and the bottom frame when the bottom plate is opened and closed.

The lower bottom opening end 17 is narrower than the inner dimension of the bottom frame 5, and the opening end peripheral wall 18 is in surface contact with the bottom plate 8, as shown in FIG.

The peripheral wall portion in surface contact comes into close contact with the upper surface of the bottom plate 8 due to the weight of the filled powder, and exhibits the effect of preventing the powder from leaking into the bottom plate.

The width of this contact edge may be about 10 cm.

The front upper edge 19 of the bag-shaped body 15 is fixed to the upper edge of the front plate 1, and the rear upper edge 20 is detachably secured to the upper edge of the rear plate 2 by a hook 21.

The top surface of the bag-like body may be left open depending on the purpose of use, but it may be provided with a lid sheet 22 and a tubular introduction portion in the center thereof, or may be provided with an input port 23 with a cap.

The bag-shaped body 15 is made using natural and synthetic fiber cloths such as foldable rubber-coated cloth, nylon cloth 5-reinforced cloth, cloth treated with resin, and soft synthetic resin sheets.

The lower open end 17 may be reinforced with a soft or hard reinforcing material to withstand repeated use.

The bottom plate 5 is provided with legs 24 for forklift cargo handling, etc., and the lower bottom of the legs 24 is provided with, for example, a concave groove in order to be placed on the upper edge of the assembled container.

Further, a hook 25 for lifting cargo is attached to the bottom frame.

The front plate, back plate, and side plate of the foldable container of the present invention are not limited to wire mesh plates, but metal plates with reinforced peripheral edges, waterproof plywood with reinforced peripheral edges with metal materials, etc. can be used. The connection of the bottom frame and front plate, etc., and the back plate and side plate,
A known hinge mechanism is employed.

Further, if necessary, a canopy plate may be provided to cover the container ceiling to protect the bag-like body and to facilitate stacking of containers when folded when not in use.

How to use the foldable container for powder of the present invention is to set the back plate upright from the folded state shown in Figure 7, open the left and right side plates by rotating them left and right, and then attach the bottom frame stopper (not shown). Insert and fix the plug (not shown), then set the front plate upright, and connect the left and right side plates with, for example, a bar-shaped connector 2.
6, and then the hook 21 of the bag-like body 15 is fastened to the upper edge of the back plate.

If necessary, adjust the bag so that it is properly inscribed within the container.

The powder 27 is put into the container and the inlet 23 is closed.

As described above, the open end peripheral wall 18 of the bag-shaped body and the bottom plate 8 are in surface contact with each other with a certain width, and are brought into close contact due to the weight of the powder, so that the powder does not leak out.

To discharge powder, lift the container to the required height and press lever 1.
By pulling 2 downward, the bottom plate opens and the powder flows out from the open end of the bag.

At this time, since the lower wall of the bag-like body is designed to be steeper than the angle of repose of the powder, all the powder is discharged.

After being ejected, the bottom plate 8 is restored to the bottom frame and engaged with the bottom plate lock fitting by operating the lever 12.

Folding the container can be done in the reverse order of assembly.

As mentioned above, the present invention has the advantages of a collapsible container, which are easy to assemble and fold, and also allows the contained powder to be discharged by operation, which was previously considered impossible. It has the advantages of being able to store and discharge the body, making it easy to handle, transport, and store the powder, and being economically inexpensive to manufacture.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 (a) is an explanatory diagram showing how to attach the side plate to the back plate, and Fig. 3 shows the mechanism for attaching the bottom plate to the bottom frame. 4 is a sectional view of the bottom plate lock fitting, FIG. 5 is a perspective view of the bag-like body, FIG. 6 is a sectional view showing the state in which powder is stored in the container, and FIG. 7 is a sectional view of the bottom plate lock fitting. A partially omitted side sectional view showing a folded state of the container is shown. 1...Front plate, 2...Back plate, 3...
...Left side plate, 4...Right side plate, 5...
...Bottom frame, 6.6', 7.7'...Spiral coil, 9...Hinge with spring, 10...
... Bottom plate lock fitting, 12 ... Lever, 15
...Bag-shaped body, 17... Bottom opening end, 2
1...Hook, 22...Lid sheet, 2
3...Input port, 25...Cargo handling hook, 26...Connection tool.

Claims (1)

[Claims for Utility Model Registration] The lower edge of the front plate 1 is rotatably attached to the front edge of the rectangular bottom frame 5, and the lower edge of the back plate 2 is rotatably attached to the rear edge of the bottom frame 5. In a foldable container in which the side edges of the left side plate 3 and the right side plate 4 are rotatably attached to the edges, and the stop plate and the side plate are connected after being erected, a spring-loaded hinge 9 is attached to one bottom side of the bottom frame. Attach the bottom plate 8, press it against the bottom surface of the bottom frame, and removably lock the bottom plate 8 to a bottom plate lock fitting 10 provided on the opposite side of the bottom frame to the side on which the bottom plate is attached; obtained by assembling the collapsible container. A bag-like body 15 inscribed in the inner surface of the box-like body and having an open bottom end, the bag-like body 15 being formed of a soft cloth or a soft sheet,
The lower side of the bag-like body is inclined toward the center of the bottom plate, and the opening end peripheral wall 18 of the bag-like body is brought into surface contact with the bottom plate 8, and the front upper edge 19 of the bag-like body is brought into contact with the top edge of the front plate 1. A collapsible container for powder is provided with a collapsible bag-like body 15 whose rear upper edge is detachably attached to the upper edge of a back plate 2.