JPH07112788A - Method of carrying granule or the like and folding container for use in carrying - Google Patents

Abstract

PURPOSE:To provide a method wherein, when granule or the like is carried in a bag with an entrance opening at the top and an exit opening at the bottom, the contents in the bag can be emptied entirely from the exit opening. CONSTITUTION:A bag H with a tapering body 3 at its lower part and an exit opening 5 continuous from the lower end of the tapering body is set into a container C with plate pieces 92 and 93 for supporting the inclined faces of the tapering body 3 and granule or the like in the bag H is carried while the inclined faces of the bag H are being supported on the plate pieces 92 and 93. After carrying to a predetermined place, the exit 5 is opened and the contents are emptied out of the bag H left as set in the container C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transporting granular materials such as plastic pellets and powdery materials, and a foldable container used for the method.

[0002]

2. Description of the Related Art A foldable bag as described in Japanese Patent Publication No. 4-55950 is used for transporting and storing granular or powdery materials. In this bag, the main body part has a rectangular parallelepiped shape in the opened state, and the rectangular parallelepiped forming the inlet and the outlet from the two bottom surfaces of the bag are respectively directed outward. Then, with the input port facing up and the discharge port closed, the granular material is put in from the input port and then transported or stored with the input port closed, and the lower discharge port is opened at the discharge location to remove the granular material inside. Is discharged.

[0003]

However, in the above-mentioned bag, since the main body portion is a rectangular parallelepiped in the opened state, the corner portions are formed at right angles, and when discharging the particulate matter from the discharge port,
There is a problem that particulate matter is likely to remain at the corners. The present invention has been made by paying attention to such problems of the prior art, and when carrying a granular material or the like in a bag having an input port in the upper part and an outlet in the lower part, the granular material in the bag, etc. It is an object of the present invention to provide a method for discharging all of the wastewater from the discharge port.

[0004]

In order to achieve the above-mentioned object, claim 1 has a charging port at the upper part and a discharging port at the lower part,
On the lower side of the rectangular parallelepiped forming the central portion of the main body, the bottom surface of the tapered body forming the lower end portion of the main body is formed by cutting off the apex side with a surface parallel to the bottom surface of the same pyramid at the predetermined height, By arranging it together with the bottom surface of the rectangular parallelepiped, and storing the bag having a shape in which the outlet is connected to the lower side of the tapered body in a container equipped with a support member that supports the inclined side surface of the tapered body of the bag. While supporting the slanted side surface of the bag by the support member, the granular material or the like introduced from the input port is conveyed into the bag with the discharge port closed, and the bag is opened in the state of being stored in the container. Disclosed is a method for transporting particulate matter or the like, characterized in that the particulate matter or the like is discharged from a discharge port.

According to a second aspect of the present invention, a rectangular parallelepiped having an open upper surface is formed, a bottom plate forming a bottom surface of the rectangular parallelepiped has an opening, and a lower edge portion of a side plate forming each side of the rectangular parallelepiped and the side plate. The edge of the bottom plate to be erected is pivotally attached by pivots arranged at different heights, and the length of each of the side plates extending in the up-down direction extends in a direction orthogonal to the pivot of the rectangular bottom plate. While making it shorter than the length of the side, at the predetermined height inside each of the side plates, the apex side between the equilateral sides of the isosceles triangle has the edge portion on the bottom side of the plate piece cut off corresponding to the shape of the opening. In a state in which the plate side of each plate piece is pivotally attached and the apex side of each plate piece is arranged on the opening side, the angle formed by the plate surface of each plate piece and the surface of each side plate to which the plate piece is pivoted is maintained at a predetermined value. There is provided a foldable container characterized in that it is provided with an angle holding member.

[0006]

According to the method of the present invention, the granular material is formed while the slanted side surface of the taper body is supported by the support member of the container by the bag having the taper body whose lower end is continuous with the discharge port on the lower side. In order to discharge the particulates and the like from the discharge port in a state where the bag is stored in the container, when discharging the particulates or the like, the particulates or the like are formed in the lower corner portion of the bag body formed at an obtuse angle. Since it is less likely to remain, and the slanted side surface of the bag is not heavily loaded during the transportation and the discharge, the bag to be used is not required to have a strength higher than usual.

According to the container of claim 2, the apex side of each plate piece is arranged on the opening side of the bottom plate, and the plate surface of each plate piece and each side plate pivotally attached thereto by the angle holding member. In a state where the angle formed by the surface is maintained at a predetermined value, the discharge port of the bag having the lower end of the main body, which is continuous with the discharge port on the lower side, is formed in the tapered body is installed in the opening, and the bag is attached to each plate piece. By contacting the outer side of the slanted side of the bag, the slanted side of the bag can be supported by each plate piece, so that the granular material etc. thrown into this bag without placing a large burden on the slanted side of the bag. Can be easily transported.

Further, the lower edge of the side plate and the edge of the bottom plate that raises the side plate are pivotally attached by pivots arranged at different heights, and the lengths of the side plates extending in the vertical direction are set. , The length of the rectangle of the bottom plate extending in the direction orthogonal to the pivot axis is made shorter and the bottom side edge of each plate is pivotally attached to the inside of each side plate. While arranging each side plate on the side plate side, rotate each side plate to the bottom plate side in order from the lower placement height of the corresponding pivot, so that all side plates and plate pieces are almost parallel to the upper side of the bottom plate. You can fold it on top of it.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a folded state of a foldable bag used in the method of claim 1, FIG. 2 is a front view showing the folded state of the bag, and FIG. 3 is an A- of FIG. A
It is a line sectional view.

As can be seen from FIG. 1, the bag H has a first rectangular parallelepiped forming the central portion 1 of the main body and a pyramid having the same bottom as this rectangular parallelepiped at a predetermined height in parallel with the bottom. Upper and lower ends of the main body 2, 3 with the shape of which the top side is cut off with
And two second rectangular parallelepipeds having the same shape as the cut surface of the tapered body and forming the inlet 4 and the outlet 5, the upper and lower bottom surfaces of the first rectangular parallelepiped 1. The tapered bodies 2 and 3 are arranged with their bottom surfaces aligned with each other, and the second rectangular parallelepipeds 4 and 5 are arranged with their bottom surfaces aligned with the cut surfaces of the tapered bodies 2 and 3, respectively.

That is, the bag H includes side surfaces 11 to 14 of a rectangular parallelepiped forming the central portion 1 of the main body and side surfaces 11 to 14 of these.
The inclined side surfaces 21 to 24 of the tapered body forming the upper end portion 2 of the main body, which are respectively continuous to the upper ends of the main body 2, and the side surfaces 41 to 41 of the rectangular parallelepiped forming the charging port 4 continuous to these inclined side surfaces 21 to 24, respectively.
44, and the inclined side surfaces 31 to 34 of the tapered body forming the lower end portion 3 of the main body, which are respectively continuous with the lower ends of the side surfaces 11 to 14 of the rectangular parallelepiped forming the central portion 1 of the main body, and these inclined side surfaces 31 to 34, respectively. Side faces 51 to 5 of the rectangular parallelepiped forming the discharge port 5
4 and two pairs of side surfaces facing each other. As a result, the inclined side surfaces 21 to 24, 31 to 34 become upper and lower surfaces of the main body, and the upper and lower corners of the main body are obtuse angles (in FIG. 1, each of the bottom surface of the rectangular parallelepiped forming the central portion of the main body and the tapered body forming the upper and lower end portions of the main body). It is formed at an angle α, β> 0 ° formed by the inclined side surface.

The side surfaces 42, 12, 52 and the inclined side surface 2
A side surface group consisting of 2, 32 and a side surface 4 facing the side surface group.
Bent lines L ₁ and L ₂ that can be folded inward through the center in the width direction are provided on the side surface group including the side surfaces 4, 4, and 54 and the inclined side surfaces 24 and 34. These polygonal lines L ₁ , L
₂ , by bending the side surface groups inward from the center in the width direction, as can be seen from FIGS. 2 and 3,
A side surface group consisting of the side surfaces 41, 11, 51 and the inclined side surfaces 21, 31 and a side surface group consisting of the side surfaces 43, 13, 53 and the inclined side surfaces 23, 33 facing each other are superposed, and these are superposed. The folded side groups are arranged between the side groups.

This bag H is in the folded state shown in FIG.
After closing the discharge port 5 by binding the vicinity of the boundary surface between the rectangular parallelepiped forming the discharge port 5 and the lower end part 3 of the main body with a string or the like, by introducing air from the input port 4, the center part 1 of the main body and the upper and lower ends of the main body Although the parts 2 and 3 and the charging port 4 are inflated, since the upper and lower corners of the main body are formed to have obtuse angles, the upper and lower corners can be surely inflated to have a predetermined shape easily. Further, when the bag H in the inflated state is filled with the granular material or the like, the entire bag is filled with the granular material or the like including the upper portion (particularly the corner portion) inside the main body. Furthermore, when the particulate matter or the like is discharged from the bag H, it becomes difficult for the particulate matter or the like in the bag H to remain at the lower corner of the discharge port 5 side. In order to sufficiently exert these effects, the angles α and β are preferably 15 to 45 °, and 20 to 20 are preferable.
More preferably, it is 40 °.

The method for producing the bag H is not limited, but as shown in FIGS. 4 (a) and 4 (b), for example, a plastic film made of polyethylene or the like in which the main body central portion 1 in the folded state is vertically extended. It is manufactured from a tubular body T made of a material such as a cloth, paper, paper, and a material in which a plastic film and cloth are laminated. That is, the central portion in the longitudinal direction of the folded tubular body T is defined as the central portion 1 of the main body, and is slanted inward from both sides toward the ends of the tubular body T at angles θ ₁ and θ ₂ , and the tip thereof is Along the seal lines S ₁₁ , S ₁₂ , S ₂₁ , and S ₂₂ that are parallel to the polygonal line of the body T, the side surfaces T ₁₂ and T ₂₁ , T ₂₃ that are bisected in the width direction and are adjacent to each other in the overlapping direction. And T ₃₂ , T ₃₄ and T ₄₃ , and T ₁₄ and T ₄₁ are joined by sewing or adhering, so that the upper and lower end portions 2 and 3 of the main body and the insertion port 4 and the discharge end thereof are provided on both sides of the central portion 1 of the main body. It is produced by forming the outlet 5 and cutting off an excessive portion. The angles θ ₁ and θ ₂ are the angles α and β formed by the bottom surface of the rectangular parallelepiped forming the central portion 1 of the main body and the inclined surfaces of the taper forming the upper and lower end portions 2 and 3 of the main body when the bag H is inflated. It is set to be a predetermined value. The angle θ ₁ (θ ₂ ) of the seal line is obtained from the angle α (β) in the inflated state by the following formula (1), and for example, α (β) = 45 °
Then, θ ₁ (θ ₂ ) = 60 °.

Θ ₁ = cos ⁻¹ (cos α / √2) (1) According to the method of claim 1, a granular material or the like is put in such a bag H and, for example, as shown in FIGS. The container C carries the inclined side surfaces 31 to 34 of the lower end portion 3 of the main body 3 in a supported state. 5 is a plan view of this container, FIG. 6 is a front view with a side plate on the front side removed, and FIG. 7 is a rear view with a lid covering the lower surface of the bottom plate removed. 8
[Fig. 4] is a front view showing a folded state of this container.

This container 6 is formed in a rectangular parallelepiped having an open top surface, and a square bottom plate 61 is provided with a square opening 61a at the center thereof. Further, each edge of the bottom plate 61 and the lower edge of each of the side plates 62 to 65 are connected by a hinge so that each of the side plates 62 to 65 can be superposed substantially parallel to the upper side of the bottom plate 61. You can do it. That is, as can be seen from FIG. 5, the side plates 62 to 65 are
Both end surfaces of the left and right side plates 62, 63 along the vertical direction are
It is arranged so as to be sandwiched by the side plates 64 and 65 on the front side and the back side, and as can be seen from FIG. 6, the lower edge of the right side plate 63 and the right side edge of the bottom plate 61 are connected by a hinge 73,
The lower edge of the left side plate 62 is connected to a spacer 82 of a predetermined height fixed to the upper left side of the bottom plate 61 along the left side edge by a hinge 72, and the side plates 64 and 65 on the front and back sides are connected.
In the same manner (not shown), hinges are similarly connected via spacers having different heights. The spacer 85 in FIG. 6 is for attaching a hinge for the back side plate 65, and the height of the spacer for the front side plate 64 is higher than this. Further, as can be seen from FIG. 6, the vertical length of each of the side plates 62 to 65 is shorter than one side of the bottom plate 61, and the right side plate 62, the left side plate 63, the rear side plate 65, and the front side plate. Side plate 64 (see FIG. 6)
(Not displayed in) is formed in order of length.

On the inner surface of each of the side plates 62 to 65, a trapezoidal plate piece 92 (a shape in which the apex side of an isosceles triangle is cut by a line parallel to the bottom side) is provided at a predetermined height from the lower side. ~
95 are attached by hinges 92a to 95a on the long sides of the two parallel long and short sides, respectively, and the short sides have substantially the same length as one side of the square forming the opening 61a of the bottom plate 61. .

Further, the plate pieces 92 to 95 are attached to the hinges 92a to 9a, respectively.
By rotating the end face of each short side to the bottom face plate 61 and the end face of each long side to the inner face of each of the side face plates 62 to 65 about the axis of 5a, the plate pieces 92 to 95 are rotated. Side plates 62-65
The plate piece 92 is formed so that the angle γ formed by and becomes γ = 180 ° −β in relation to the angle β when the bag H is inflated.
The end faces of the long sides and the short sides of ~ 95 are not inclined at right angles to the plate surface but obliquely cut off at a predetermined angle. A stopper for holding the angle γ may be provided between each plate piece 92 to 95 and each side plate 62 to 65.

Therefore, in this container C, as can be seen from FIG. 8, each plate piece 92-95 is hinged 92a-95a.
While rotating the upper side about the axis of the bottom plate and arranging it on the inner surfaces of the side surface plates 62 to 65, each edge portion of the bottom surface plate 61 and each side surface plate 62 are
Rotating in the order of the right side plate 63, the left side plate 62, the rear side plate 65, and the front side plate 64 around the axis of the hinge (only 72 and 73 are shown) that connects to the lower edge of ~ 65. Let me
By stacking the side plates 62 to 65 on the upper side of the bottom plate 61, all the side plates and the plate pieces can be folded in a state of being stacked substantially parallel to the upper side of the bottom plate, so that they are not bulky during transportation.

On the other hand, an insertion port for inserting a fork of a forklift is provided at the bottom of this container. That is, as can be seen from FIGS.
A lower surface plate 161 made of the same plate material is arranged below and in parallel with the lower surface plate 161.
The cross bar 162 is sandwiched along the lower edge of 4,65,
The same horizontal bar 163 is sandwiched and fixed to the inside of these at a position outside the opening 161a (61a).
An elongated space formed between 62 and 163 serves as an insertion port K into which the fork can be inserted from the side plate 62 or 63 on either side. Both side bars 16
A short vertical tree 164 is arranged along the lower edges of the left and right side plates 62, 63 between the three, and the bottom plate 61 and the bottom plate 1
A space 165 around which an opening 161a (61a) between the bag 61 and a string for opening and closing the outlet 5 of the bag H can be stored.
Is formed.

On the lower side of the lower surface plate 161, the opening 1
There is a lid 166 for opening and closing 61a (61a) from below,
The lid 166 is formed of a thin plate material having the same square shape as the lower surface plate 161, and has a hinge 166 on the right edge portion of the lower surface plate 161.
It is attached by a. Therefore, the lid 166 is closed, and the end faces of the respective short sides of the plate pieces 92 to 95 are attached to the bottom plate 61.
By bringing the end faces of the long sides into contact with the inner faces of the side plates 62 to 65, the inside of the container C in a state where the plate pieces 92 to 95 and the side plates 62 to 65 are held at a predetermined angle γ is shown in FIG. As shown in, the bag H with the discharge port 5 closed is inserted with the discharge port 5 side facing downward, and the discharge port 5 is closed (such as a structure in which the discharge port 5 opens when the tip is pulled). Is housed in the space 165 and its tip is arranged near the opening 161a. In this state, the bag H is inflated by introducing air from the charging port, and the granular material or the like is put into the bag H having a predetermined shape, and the container C is transported or stored.

As a result, the slanted side surface of the lower end portion 3 of the main body is supported by the surfaces of the plate pieces 92 to 95. There is no heavy burden on the slope when transporting or storing. Therefore, even if the material of the bag H is as described above, the bag H has sufficient strength in a used state. When discharging the particulate matter or the like from the discharge port 5, the lid 161 is opened downward,
By pulling the tip of the string near the opening 161a, as shown in FIG.
As shown by the imaginary line, the discharge port 5 is opened and the internal particulate matter and the like are discharged.

[0023]

As described above, according to the method of claim 1, when a granular material or the like is carried by a bag having an input port in the upper portion and a discharge port in the lower portion, the granular material in the bag is removed. This bag can be made of the same material as a conventional foldable bag because it can be completely discharged from the discharge port and the bag to be used does not need to be stronger than usual. As a result, the granular material such as plastic pellets or the powdery material can be efficiently transported.

According to the container of claim 2, the lower end of the main body, which has the discharge port connected to the lower side, is placed in the bag without giving a large load to the inclined side surface of the bag. The granular material can be easily transported. further,
In this container, all the side plates and the plate pieces can be folded in a state in which they are superposed substantially parallel to the upper side of the bottom plate. This makes this container useful in implementing the method of claim 1.

[Brief description of drawings]

1 is a perspective view showing a bag used in the method of claim 1. FIG.

FIG. 2 is a front view showing a folded state of the bag shown in FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a diagram showing an example of a method for producing this bag,
(A) is a top view of the cylinder which comprises this bag, (b) is a front view of this cylinder.

FIG. 5 is a plan view showing an embodiment of the container of claim 2;

6 is a front view showing a state in which a front side plate of the container of FIG. 5 is removed.

7 is a rear view showing a state in which a lid for covering the lower surface of the bottom plate of the container of FIG. 5 is removed.

FIG. 8 is a front view showing a folded state of the container of FIG.

9 is a front view showing a usage state of the container of FIG. 5. FIG.

[Explanation of symbols]

 H bag 1 main body central part 3 main body lower end part 4 input port 5 discharge port C container 61 bottom plate 62-65 side plate 61a opening 92-95 plate piece

Claims (2)

[Claims] 1. A pyramid that has a charging port at the top and a discharging port at the bottom, and that has the same bottom surface as the rectangular parallelepiped at the bottom of the rectangular parallelepiped forming the center of the main body. The bottom surface of the tapered body that forms the lower end of the main body
A bag having a shape in which a discharge port is connected to the bottom of the rectangular parallelepiped and connected to the bottom surface of the rectangular parallelepiped is stored in a container having a support member that supports the inclined side surface of the tapered body of the bag. With the support member supporting the slanted side surface of the bag, the bag is carried in the bag while the discharge port is closed, and the granular material or the like is carried, and the bag is opened in the container. A method of transporting particulate matter or the like, characterized in that the particulate matter or the like is discharged from the discharged outlet. 2. A rectangular parallelepiped having an open upper surface, a bottom plate forming a bottom surface of the rectangular parallelepiped having an opening, a lower edge portion of a side plate forming each side surface of the rectangular parallelepiped, and a bottom for raising the same. The edge of the face plate is pivotally attached by pivots arranged at different heights, and the length of each of the side plates extending in the vertical direction is defined by the length of the side of the rectangle forming the bottom plate extending in the direction orthogonal to the pivot. In addition, the edge of the bottom side of the cut plate piece is pivotally attached at a predetermined height inside each of the side plates, and the apex side between the equilateral sides of the isosceles triangle is cut to correspond to the shape of the opening. An angle holding that holds a predetermined value for an angle formed by the plate surface of each plate piece and the surface of each side plate to which the plate surface is pivotally attached in a state where the apex side of each plate piece is arranged on the opening side. A foldable container characterized by having a member.