JP2003246313A - All-fiber drum - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fiber drum that is easy to carry out post-treatments such as burning and disposal, which is not only capable of being recycled as used paper but is also stable in stacking at the time of use and storage while being robust at the lower edge of the body, making it difficult to buckle, and whose lid is further provided with a gripping member so that it becomes easy to handle the lid at the time of carrying out opening and closing operations resulting in easy opening and closing of the drum. <P>SOLUTION: The all-fiber drum is constituted of a drum body portion, a bottom portion, and a lid body all made of paper material, while a ground plate of the bottom portion enclosing the lower surface of the cylindrical body portion is accompanied with a paper-made ring-formed reinforcing member disposed around the whole circumference thereof, the ring-formed reinforcing member being covered and enveloped with an extension member of the lower edge of the cylindrical body so as to wrap it up, thereupon having a bottom decorative paper bonded thereto. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called all-fiber type fiber drum entirely made of a paper material, and more particularly to a fiber drum having improved load resistance and stacking stability.

[0002]

2. Description of the Related Art A fiber drum is a cylindrical paper container formed by laminating a plurality of craft liner papers and is generally known as a transport container for chemicals and miscellaneous goods. It is roughly divided into an "all-fiber drum" that does not use any at all, and a "fiber drum" that uses metal for the lid, clasp and part of the body.
Although there is no standardized standard for "fiber drums" such as JIS, according to the standards of Honshu Ream Co., which is one of the most prominent in the industry, the former types are named F type, L type, and R type according to type and use. And the latter is labeled with the X type.

The characteristic of the all-fiber drum is that since all the materials are manufactured from paper, post-processing such as incineration and disposal is easy, and when discarded, it can be recycled (recycled) as waste paper. As an environmentally friendly product, it meets the social demands of recent years. On the other hand, the X type using a metal member can completely seal the lid by using a retainer ring, and the lid can be easily opened and closed, and an aluminum foil or plastic film is attached to the inner surface by attaching a composite material. It is known that by doing so, excellent functions such as moisture resistance, oxidation resistance, and ultraviolet blocking property can be added, and it is cheaper than a metal can.

The present invention proposes an "all fiber drum" entirely made of paper material, but the conventional "all fiber drum" cannot be said to have sufficient load resistance and stackability. . Especially conventional R
The type of "all fiber drum" has a flat lid surface and can be stacked, but there is a problem that stacked products are easily displaced and the stability is poor. Further, the conventional drum has a problem that the opening and closing operation is not easy because there are few parts to which fingers are hooked when opening and closing the lid. Further, the conventional one has a problem that the lower edge portion of the drum is easily buckled during the handling when the drum is inclined and the bottom is rolled.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above problems in the conventional type. That is, the present invention proposes an "all fiber drum" that is entirely made of paper material, and when it is discarded, post-processing such as incineration and disposal is easy, and it is recycled as recycled paper (recycled resource). In addition, the stacking stability during use and storage is high, and the lower edge of the drum body is strong and buckles even during handling operations such as rolling the drum body at an angle. Difficult, and
An object of the present invention is to provide a fiber drum in which a lid is provided with a gripping member and the lid can be easily handled and opened / closed during opening / closing operations.

[0006]

A first invention proposed by the present invention for solving the above-mentioned problems comprises a fiber drum main body and a lid for closing the upper surface of the drum main body, and has a cylindrical shape of the drum. A fiber drum in which a body, a bottom and a lid are all formed of a paper material, and a bottom main plate that closes the lower surface of the cylindrical body covers the entire lower surface,
It is characterized in that a ring-shaped reinforcing member made of paper is additionally provided, the ring-shaped reinforcing member is wrapped by the lower edge extension member of the cylindrical body so as to be wrapped, and the bottom decorative paper is adhered. It is a thing.

A second invention proposed by the present invention is the first invention described above.
In the fiber drum of the invention described above, a paper member having a ring-shaped gripping function is provided on the top surface of the lid so as to project upward, and then the lid decorative paper is adhered to the lid.

A third invention proposed by the present invention is the first invention described above.
In the fiber drum of the invention described above, the paper support member having a ring-shaped gripping function provided so as to project upward on the top surface of the lid body is wound by the upper edge extension member of the member constituting the lid peripheral wall. It is characterized in that it is formed by covering and adhering.

A fourth invention proposed by the present invention comprises a paper-made reinforcing member arranged in a ring shape over the entire lower surface of a main plate closing the lower surface of the cylindrical body, and a top surface of the lid body. And a ring-shaped paper support member having a gripping function, which is provided by adhesion, is formed so as to have a male and female fitting relationship when the drums are stacked in a plurality of stages. The all-fiber drum according to either the second invention or the third invention.

A fifth invention proposed by the present invention is to provide a lid fitting portion having a diameter smaller than the outer diameter of the barrel portion by gathering the upper part of the cylindrical body portion, and the lid fitting portion is provided with a barrel fitting portion. The all-fiber drum according to any one of the first to fourth inventions, wherein a lid having a diameter substantially equal to the outer diameter of the portion is detachably mounted.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the drum of the present invention will be specifically described with reference to the drawings. FIG. 1 is an exploded perspective view showing an example of the configuration of the fiber drum of the present invention, FIG.
2 is a vertical cross-sectional view showing a state in which the lid is combined with the fiber drum main body and the drum upper surface opening is closed, and FIG.
FIG. 4 is an enlarged vertical sectional view of a main portion of the lid body, FIG. 5 is an enlarged vertical sectional view of a bottom portion of the drum main body, and FIG. 6 is an enlarged vertical sectional view of the drum body. It is a perspective view which notches and shows a part. FIG. 7 is an enlarged vertical sectional view of an essential part showing another embodiment of the lid, and FIG. 8 is an enlarged vertical sectional view of an essential part showing another embodiment of the bottom of the drum body.

As shown in FIGS. 1 and 2, the fiber drum of the present invention has a cylindrical drum body 1 having an open upper surface.
0 and a lid 1 whose upper surface can be opened and closed.
Combining with 1. The cylindrical body 12 that constitutes the drum body is made of kraft liner paper as a main material and is flat-wound and laminated in about 6 to 10 layers by a paper tube manufacturing machine. Is formed into a cylindrical shape.

The lower end opening of the cylindrical body 12 is
It is closed by a disc-shaped base plate 13 made of the same material as. The base plate 13 is formed in a circular shape slightly smaller than the lower end opening so that it can be fitted inside the lower end opening of the drum body having a cylindrical shape. Also, the main plate 1
A ring-shaped reinforcing member 14 made of the same laminated paper is attached to the lower side of the drum 3 over the entire inner surface of the body.

Further, the lower end edge of the body 12 is bent (curled) inwardly over the entire circumference so that the ring-shaped reinforcing member 14 is wound and covered. At the lower end edge of the body 12, the inner surface of the body 12 and the reinforcing member 14 and the base plate 13 are adhered to each other by an adhesive 15, such as a hot melt adhesive, which has an excellent adhesive force. The reinforcing member 14 forms a rib protruding downward on the bottom surface of the drum. As a result, the bottom portion is raised, and as will be described later, the recess portion 16 is provided on the bottom portion of the drum body so that the drums can be stably stacked. Reference numeral 17 is a bottom decorative paper adhered to the bottom of the drum.

A lid fitting portion 18 having a diameter smaller than the thickness of the craft liner forming the body is provided on the upper portion of the drum. The diameter of the lid fitting portion 18 is reduced by gathering (drawing) the upper portion of the body portion. However, the lid fitting portion 18 has the same diameter as the body portion without gathering.
An inner cylinder may be attached to the inside of the body.

The upper opening of the drum body is closed by a lid 11 made of the same material as the body 12. The lid 11 has a short-sized lid body (cylindrical peripheral wall) 19 fitted into the lid fitting portion 18, and a disc-like shape formed to have a diameter substantially equal to the inner diameter of the lid fitting portion 18. It consists of a top plate 20. On the upper surface of the peripheral portion of the top plate 20, the upper end edge of the peripheral wall 19 is bent inward, and its bent edge 21 is adhered to the top plate 20, and is provided on the upper surface of the bent edge 21 at the bottom. A gripping support member 22 made of a paper material similar to the ring-shaped reinforcing member 14 is fixed in a ring shape by a hot melt adhesive 23 over the entire circumference of the lid surface so as to protrude in a height direction by a predetermined dimension. There is. Incidentally, the insertion allowance of the lid body 11 to the body portion 10 is designed to have an appropriate depth and depth according to the use of the drum, but in the normal case, it is 45 to 1
It is about 00 mm, and if the insertion allowance is designed deep, the moisture-proof property is improved, but on the other hand, it becomes difficult to open the lid.

Reference numeral 24 is a cover decorative paper, which is wrapped around the paper support member 22 and fixed to the lid body 19 and the top plate 20.

In the drum of this embodiment, the gripping support member 22 protruding in the height direction in a ring shape over the entire circumference of the lid surface and the ring-shaped reinforcing member 14 provided at the bottom of the drum body are When a plurality of the drums of this embodiment are vertically stacked, the drums can be fitted into each other in a male-female shape so that the load does not easily collapse. That is, the outer diameter dimension D1 of the gripping support member 22 provided on the lid surface (the dimension including the thickness of the decorative paper 24 attached to the member 22) is the inner diameter dimension D2 of the bottom reinforcing member 14 (the makeup attached to the member 14). It is set to be slightly smaller than the dimension (including the thickness of the paper 17), and the protruding height H1 of the gripping support member 22 is the protruding height H2 of the reinforcing member 14 provided on the bottom surface (in other words, the recessed amount of the recess 16). Is set a little smaller than. Therefore, when a plurality of drums of this embodiment are stacked and transported or stored, as shown in FIG. 6, the ring-shaped reinforcing member 14 is used.
The support member 22 and the support member 22 are fitted into each other in a male-female state to prevent the stacked drum stacking surfaces from shifting and prevent the load from collapsing due to the shift and to maintain the stacked state in a stable state. It is considered.

The lid 11 of the present invention is not limited to the one shown in FIG. 4, but as shown in FIG. 7, it may be arranged so as to project upward at the peripheral portion of the top plate 20 of the lid. It is also possible to dispose a ring-shaped paper support member 22 having a gripping function, and cover and adhere the support member 22 so as to be rolled up by the upper edge portion of the peripheral wall 19 forming the lid. Further, the drum body 12 is not limited to that shown in FIG. 5, and as shown in FIG. 8, after being closed by the disc-shaped base plate 13 made of the same material as the body 12, Main plate 13
A ring-shaped reinforcing member 14 made of the same laminated paper as that of the main plate 13 is adhered to the outer peripheral edge of the entire circumference, and a bottom decorative paper 17 can be attached and fixed thereon. When the configuration of FIGS. 7 and 8 is adopted as described above, a ring-shaped paper support member 22 having a gripping function that is provided by being adhered to the top surface of the lid, and a ring around the entire lower surface of the main plate. It is preferable that the reinforcing members 14 made of paper, which are arranged in a sheet shape, have a male and female relationship with each other when the drums of the present invention are stacked in a plurality of stages.

Next, the usage of this drum will be described together with its operation. The drum main body 10 of the present invention is filled with fluid articles such as miscellaneous goods to industrial chemicals, articles requiring moisture resistance, and relatively heavy dangerous goods, and gathered as an example of the upper section of the main body. The lid 11 is fitted into the lid fitting portion 18 and transported.

The base plate fitted inside the drum body is supported by a ring reinforcing member 14 provided on the lower side of the base plate 13 at a predetermined height over the entire inner surface of the body. Even if the base plate bends due to the weight of the base plate, the base plate does not come into contact with the floor, so that the back surface of the base plate does not become soiled, and it is less susceptible to the effect of moisture received from the floor surface, and the deterioration in strength is reduced.

As described above, at the lower end edge of the drum body 12, the ring-shaped reinforcing member 14 is disposed on the bottom plate of the body 12, and the reinforcing member 14 is made of the body paper and / or the bottom decorative paper. Since the reinforcing member 14 is wrapped around the entire circumference so that it can be wound around, the load-bearing strength is very high, and the lower edge of the drum body is strong and buckles even when handling the drum body, such as rolling the drum body at an angle. Hateful. Further, since the recessed portion 16 is formed in the bottom portion of the drum body, it is easy to carry when carrying it and easy to carry.

A lid 11 having a substantially same diameter is fitted and closed on the upper portion of the drum body by a lid fitting portion 17 formed by a gathering process. Since the gripping support ring 21 projects in the height direction over the entire circumference of the lid surface by a predetermined distance, it is easy to handle and the opening / closing operation of the lid becomes easy.

A gripping support member 22 provided on the lid 11.
Since the reinforcing member 14 provided at the bottom of the drum body has a structure in which the drums are fitted to each other to prevent the load from collapsing when the drums are stacked vertically, the collapsing of the stacked drum stack surfaces causes the collapse of the load. Instead, the stacked state can be maintained with good stability.

[0025]

As described above, the fiber drum of the present invention has no risk of damage when storing and transporting articles, does not stain the back surface of the main plate, and does not absorb moisture from the floor surface. It is hard to be affected by and has little strength deterioration, so it can be used for a long time. Moreover, when stacking drums vertically in multiple stages during use or storage, the support rings fit together and the stacking state is maintained in a stable state without causing the load collapse due to the displacement of the drum stacking surface. it can. Since the lid has a protrusion on which a finger can easily be put, the lid can be easily opened and closed. Furthermore, in the case of disposal, it is not necessary to separate the metal parts, all can be recycled as waste paper, waste disposal is easy, and it meets current social needs.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an example of an embodiment of a fiber drum of the present invention.

[Fig. 2] Combining the lid with the body of the fiber drum,
FIG. 6 is a vertical cross-sectional view showing a state in which the drum upper surface opening is closed.

FIG. 3 is a partially cutaway plan view of the lid body of FIG.

FIG. 4 is an enlarged perspective view of a main part of a lid body.

FIG. 5 is an enlarged perspective view of the bottom of the drum body.

FIG. 6 is a side view showing a state in which drums are stacked and a main portion is cut away.

FIG. 7 is an enlarged cross-sectional view of a main part showing another embodiment of the lid body.

FIG. 8 is an enlarged cross-sectional view of a main portion showing another embodiment of the drum bottom portion.

[Explanation of symbols]

10 drum body 11 lid 12 drum body 13 Main plate 14 Ring-shaped reinforcing member 15 Adhesive 16 hollow 17 bottom decorative paper 18 Lid fitting part 19 Lid body (cylindrical peripheral wall) 20 Top plate 21 Folded edge 22 Support for gripping 23 Adhesive

Claims (5)

[Claims] 1. A fiber drum comprising a fiber drum main body and a lid for closing the upper surface of the drum main body, wherein the cylindrical body, bottom and lid of the drum are all made of paper material. The bottom main plate that closes the lower surface of the cylindrical body is provided with a ring-shaped reinforcing member made of paper along the entire circumference of the lower surface, and the ring-shaped reinforcing member is wound by the lower edge extension member of the cylindrical body. The all-fiber drum is characterized in that it is wrapped like this and then adhered to the bottom decorative paper. 2. The fiber drum according to claim 1, wherein a paper-made member having a ring-shaped gripping function is provided on the top surface of the lid so as to project upward, and the lid is made of decorative paper. An all-fiber drum characterized by being bonded. 3. The fiber drum according to claim 1, wherein the paper support member having a ring-shaped gripping function provided on the top surface of the lid body so as to project upward is a member forming a peripheral wall of the lid body. An all-fiber drum characterized by being wrapped and adhered so as to be wound by the upper edge extension member. 4. A reinforcing member made of paper, which is arranged in a ring shape over the entire lower surface of a main plate that closes the lower surface of the cylindrical body, and a ring-shaped grip provided by being adhered to the top surface of the lid body. The paper support member having a function is formed to have a male and female mating relationship when the drums are stacked in a plurality of stages.
All fiber drums described in any of 5. A lid fitting portion having a diameter smaller than the outer diameter of the barrel portion is provided by gathering the upper portion of the cylindrical barrel portion, and the lid fitting portion has a lid having substantially the same diameter as the outer diameter of the barrel portion. The all-fiber drum according to any one of claims 1 to 4, wherein the body is detachably attached.